14012 lines
385 KiB
C
14012 lines
385 KiB
C
/*
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* degesch.c: the experimental IRC client
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*
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* Copyright (c) 2015 - 2020, Přemysl Eric Janouch <p@janouch.name>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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// A table of all attributes we use for output
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#define ATTR_TABLE(XX) \
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XX( PROMPT, prompt, Terminal attrs for the prompt ) \
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XX( RESET, reset, String to reset terminal attributes ) \
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XX( DATE_CHANGE, date_change, Terminal attrs for date change ) \
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XX( READ_MARKER, read_marker, Terminal attrs for the read marker ) \
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XX( WARNING, warning, Terminal attrs for warnings ) \
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XX( ERROR, error, Terminal attrs for errors ) \
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XX( EXTERNAL, external, Terminal attrs for external lines ) \
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XX( TIMESTAMP, timestamp, Terminal attrs for timestamps ) \
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XX( HIGHLIGHT, highlight, Terminal attrs for highlights ) \
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XX( ACTION, action, Terminal attrs for user actions ) \
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XX( USERHOST, userhost, Terminal attrs for user@host ) \
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XX( JOIN, join, Terminal attrs for joins ) \
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XX( PART, part, Terminal attrs for parts )
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enum
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{
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#define XX(x, y, z) ATTR_ ## x,
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ATTR_TABLE (XX)
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#undef XX
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ATTR_COUNT
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};
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// User data for logger functions to enable formatted logging
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#define print_fatal_data ((void *) ATTR_ERROR)
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#define print_error_data ((void *) ATTR_ERROR)
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#define print_warning_data ((void *) ATTR_WARNING)
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#include "config.h"
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#define PROGRAM_NAME "degesch"
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#include "common.c"
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#include "kike-replies.c"
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#include <langinfo.h>
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#include <locale.h>
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#include <pwd.h>
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#include <sys/utsname.h>
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#include <wchar.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#include <curses.h>
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#include <term.h>
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// Literally cancer
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#undef lines
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#undef columns
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#include <ffi.h>
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#ifdef HAVE_LUA
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#include <lua.h>
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#include <lualib.h>
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#include <lauxlib.h>
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#endif // HAVE_LUA
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// --- Terminal information ----------------------------------------------------
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static struct
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{
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bool initialized; ///< Terminal is available
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bool stdout_is_tty; ///< `stdout' is a terminal
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bool stderr_is_tty; ///< `stderr' is a terminal
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struct termios termios; ///< Terminal attributes
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char *color_set_fg[256]; ///< Codes to set the foreground colour
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char *color_set_bg[256]; ///< Codes to set the background colour
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int lines; ///< Number of lines
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int columns; ///< Number of columns
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}
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g_terminal;
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static void
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update_screen_size (void)
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{
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#ifdef TIOCGWINSZ
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if (!g_terminal.stdout_is_tty)
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return;
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struct winsize size;
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if (!ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &size))
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{
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char *row = getenv ("LINES");
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char *col = getenv ("COLUMNS");
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unsigned long tmp;
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g_terminal.lines =
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(row && xstrtoul (&tmp, row, 10)) ? tmp : size.ws_row;
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g_terminal.columns =
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(col && xstrtoul (&tmp, col, 10)) ? tmp : size.ws_col;
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}
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#endif // TIOCGWINSZ
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}
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static bool
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init_terminal (void)
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{
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int tty_fd = -1;
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if ((g_terminal.stderr_is_tty = isatty (STDERR_FILENO)))
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tty_fd = STDERR_FILENO;
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if ((g_terminal.stdout_is_tty = isatty (STDOUT_FILENO)))
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tty_fd = STDOUT_FILENO;
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int err;
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if (tty_fd == -1 || setupterm (NULL, tty_fd, &err) == ERR)
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return false;
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// Make sure all terminal features used by us are supported
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if (!set_a_foreground || !set_a_background
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|| !enter_bold_mode || !exit_attribute_mode
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|| tcgetattr (tty_fd, &g_terminal.termios))
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{
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del_curterm (cur_term);
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return false;
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}
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// Make sure newlines are output correctly
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g_terminal.termios.c_oflag |= ONLCR;
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(void) tcsetattr (tty_fd, TCSADRAIN, &g_terminal.termios);
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g_terminal.lines = tigetnum ("lines");
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g_terminal.columns = tigetnum ("cols");
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update_screen_size ();
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int max = MIN (256, max_colors);
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for (int i = 0; i < max; i++)
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{
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g_terminal.color_set_fg[i] = xstrdup (tparm (set_a_foreground,
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i, 0, 0, 0, 0, 0, 0, 0, 0));
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g_terminal.color_set_bg[i] = xstrdup (tparm (set_a_background,
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i, 0, 0, 0, 0, 0, 0, 0, 0));
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}
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return g_terminal.initialized = true;
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}
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static void
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free_terminal (void)
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{
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if (!g_terminal.initialized)
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return;
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for (int i = 0; i < 256; i++)
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{
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free (g_terminal.color_set_fg[i]);
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free (g_terminal.color_set_bg[i]);
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}
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del_curterm (cur_term);
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}
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// --- User interface ----------------------------------------------------------
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// I'm not sure which one of these backends is worse: whether it's GNU Readline
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// or BSD Editline. They both have their own annoying problems. We use lots
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// of hacks to get the results we want and need.
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//
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// The abstraction is a necessary evil. It's still not 100%, though.
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/// Some arbitrary limit for the history
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#define HISTORY_LIMIT 10000
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/// Characters that separate words
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#define WORD_BREAKING_CHARS " \f\n\r\t\v"
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struct input
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{
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struct input_vtable *vtable; ///< Virtual methods
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void (*add_functions) (void *); ///< Define functions for binding
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void *user_data; ///< User data for callbacks
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};
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typedef void *input_buffer_t; ///< Pointer alias for input buffers
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/// Named function that can be bound to a sequence of characters
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typedef bool (*input_fn) (int count, int key, void *user_data);
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// A little bit better than tons of forwarder functions in our case
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#define CALL(self, name) ((self)->vtable->name ((self)))
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#define CALL_(self, name, ...) ((self)->vtable->name ((self), __VA_ARGS__))
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struct input_vtable
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{
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/// Start the interface under the given program name
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void (*start) (void *input, const char *program_name);
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/// Stop the interface
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void (*stop) (void *input);
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/// Prepare or unprepare terminal for our needs
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void (*prepare) (void *input, bool enabled);
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/// Destroy the object
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void (*destroy) (void *input);
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/// Hide the prompt if shown
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void (*hide) (void *input);
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/// Show the prompt if hidden
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void (*show) (void *input);
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/// Retrieve current prompt string
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const char *(*get_prompt) (void *input);
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/// Change the prompt string; takes ownership
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void (*set_prompt) (void *input, char *prompt);
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/// Ring the terminal bell
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void (*ding) (void *input);
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/// Create a new input buffer
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input_buffer_t (*buffer_new) (void *input);
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/// Destroy an input buffer
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void (*buffer_destroy) (void *input, input_buffer_t buffer);
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/// Switch to a different input buffer
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void (*buffer_switch) (void *input, input_buffer_t buffer);
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/// Register a function that can be bound to character sequences
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void (*register_fn) (void *input,
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const char *name, const char *help, input_fn fn, void *user_data);
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/// Bind an arbitrary sequence of characters to the given named function
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void (*bind) (void *input, const char *seq, const char *fn);
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/// Bind Ctrl+key to the given named function
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void (*bind_control) (void *input, char key, const char *fn);
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/// Bind Alt+key to the given named function
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void (*bind_meta) (void *input, char key, const char *fn);
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/// Get the current line input
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char *(*get_line) (void *input);
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/// Clear the current line input
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void (*clear_line) (void *input);
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/// Insert text at current position
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bool (*insert) (void *input, const char *text);
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/// Handle terminal resize
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void (*on_tty_resized) (void *input);
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/// Handle terminal input
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void (*on_tty_readable) (void *input);
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};
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#define INPUT_VTABLE(XX) \
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XX (start) XX (stop) XX (prepare) XX (destroy) \
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XX (hide) XX (show) XX (get_prompt) XX (set_prompt) XX (ding) \
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XX (buffer_new) XX (buffer_destroy) XX (buffer_switch) \
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XX (register_fn) XX (bind) XX (bind_control) XX (bind_meta) \
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XX (get_line) XX (clear_line) XX (insert) \
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XX (on_tty_resized) XX (on_tty_readable)
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// --- GNU Readline ------------------------------------------------------------
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#ifdef HAVE_READLINE
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#include <readline/readline.h>
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#include <readline/history.h>
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#define INPUT_START_IGNORE RL_PROMPT_START_IGNORE
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#define INPUT_END_IGNORE RL_PROMPT_END_IGNORE
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struct input_rl_fn
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{
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ffi_closure closure; ///< Closure
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LIST_HEADER (struct input_rl_fn)
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input_fn callback; ///< Real callback
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void *user_data; ///< Real callback user data
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};
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struct input_rl_buffer
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{
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HISTORY_STATE *history; ///< Saved history state
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char *saved_line; ///< Saved line content
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int saved_point; ///< Saved cursor position
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int saved_mark; ///< Saved mark
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};
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struct input_rl
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{
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struct input super; ///< Parent class
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bool active; ///< Interface has been started
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char *prompt; ///< The prompt we use
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int prompt_shown; ///< Whether the prompt is shown now
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char *saved_line; ///< Saved line content
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int saved_point; ///< Saved cursor position
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int saved_mark; ///< Saved mark
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struct input_rl_fn *fns; ///< Named functions
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struct input_rl_buffer *current; ///< Current input buffer
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};
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static void
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input_rl_ding (void *input)
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{
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(void) input;
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rl_ding ();
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}
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static const char *
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input_rl_get_prompt (void *input)
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{
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struct input_rl *self = input;
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return self->prompt;
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}
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static void
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input_rl_set_prompt (void *input, char *prompt)
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{
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struct input_rl *self = input;
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cstr_set (&self->prompt, prompt);
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if (!self->active || self->prompt_shown <= 0)
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return;
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// First reset the prompt to work around a bug in readline
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rl_set_prompt ("");
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rl_redisplay ();
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rl_set_prompt (self->prompt);
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rl_redisplay ();
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}
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static void
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input_rl_clear_line (void *input)
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{
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(void) input;
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rl_replace_line ("", false);
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rl_redisplay ();
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}
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static void
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input_rl__erase (struct input_rl *self)
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{
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rl_set_prompt ("");
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input_rl_clear_line (self);
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}
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static bool
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input_rl_insert (void *input, const char *s)
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{
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struct input_rl *self = input;
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rl_insert_text (s);
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if (self->prompt_shown > 0)
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rl_redisplay ();
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// GNU Readline, contrary to Editline, doesn't care about validity
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return true;
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}
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static char *
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input_rl_get_line (void *input)
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{
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(void) input;
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return rl_copy_text (0, rl_end);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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input_rl_bind (void *input, const char *seq, const char *function_name)
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{
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(void) input;
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rl_bind_keyseq (seq, rl_named_function (function_name));
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}
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static void
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input_rl_bind_meta (void *input, char key, const char *function_name)
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{
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// This one seems to actually work
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char keyseq[] = { '\\', 'e', key, 0 };
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input_rl_bind (input, keyseq, function_name);
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#if 0
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// While this one only fucks up UTF-8
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// Tested with urxvt and xterm, on Debian Jessie/Arch, default settings
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// \M-<key> behaves exactly the same
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rl_bind_key (META (key), rl_named_function (function_name));
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#endif
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}
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static void
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input_rl_bind_control (void *input, char key, const char *function_name)
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{
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char keyseq[] = { '\\', 'C', '-', key, 0 };
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input_rl_bind (input, keyseq, function_name);
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}
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static void
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input_rl__forward (ffi_cif *cif, void *ret, void **args, void *user_data)
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{
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(void) cif;
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struct input_rl_fn *data = user_data;
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if (!data->callback
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(*(int *) args[0], UNMETA (*(int *) args[1]), data->user_data))
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rl_ding ();
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*(int *) ret = 0;
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}
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static void
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input_rl_register_fn (void *input,
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const char *name, const char *help, input_fn callback, void *user_data)
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{
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struct input_rl *self = input;
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(void) help;
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void *bound_fn = NULL;
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struct input_rl_fn *data = ffi_closure_alloc (sizeof *data, &bound_fn);
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hard_assert (data);
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static ffi_cif cif;
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static ffi_type *args[2] = { &ffi_type_sint, &ffi_type_sint };
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hard_assert (ffi_prep_cif
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(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_sint, args) == FFI_OK);
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data->prev = data->next = NULL;
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data->callback = callback;
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data->user_data = user_data;
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hard_assert (ffi_prep_closure_loc (&data->closure,
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&cif, input_rl__forward, data, bound_fn) == FFI_OK);
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rl_add_defun (name, (rl_command_func_t *) bound_fn, -1);
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LIST_PREPEND (self->fns, data);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static int app_readline_init (void);
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static void on_readline_input (char *line);
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static char **app_readline_completion (const char *text, int start, int end);
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|
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static void
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input_rl_start (void *input, const char *program_name)
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{
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struct input_rl *self = input;
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using_history ();
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// This can cause memory leaks, or maybe even a segfault. Funny, eh?
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stifle_history (HISTORY_LIMIT);
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const char *slash = strrchr (program_name, '/');
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rl_readline_name = slash ? ++slash : program_name;
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rl_startup_hook = app_readline_init;
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rl_catch_sigwinch = false;
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rl_change_environment = false;
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rl_basic_word_break_characters = WORD_BREAKING_CHARS;
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rl_completer_word_break_characters = NULL;
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rl_attempted_completion_function = app_readline_completion;
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|
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hard_assert (self->prompt != NULL);
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|
// The inputrc is read before any callbacks are called, so we need to
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// register all functions that our user may want to map up front
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self->super.add_functions (self->super.user_data);
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rl_callback_handler_install (self->prompt, on_readline_input);
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self->prompt_shown = 1;
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self->active = true;
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}
|
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|
|
static void
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input_rl_stop (void *input)
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|
{
|
|
struct input_rl *self = input;
|
|
if (self->prompt_shown > 0)
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|
input_rl__erase (self);
|
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|
|
// This is okay as long as we're not called from within readline
|
|
rl_callback_handler_remove ();
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self->active = false;
|
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self->prompt_shown = false;
|
|
}
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|
|
static void
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input_rl_prepare (void *input, bool enabled)
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|
{
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(void) input;
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if (enabled)
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rl_prep_terminal (true);
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else
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rl_deprep_terminal ();
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}
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|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
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|
|
// The following part shows you why it's not a good idea to use
|
|
// GNU Readline for this kind of software. Or for anything else, really.
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|
|
|
static void
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input_rl__save_buffer (struct input_rl *self, struct input_rl_buffer *buffer)
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|
{
|
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(void) self;
|
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|
|
buffer->history = history_get_history_state ();
|
|
buffer->saved_line = rl_copy_text (0, rl_end);
|
|
buffer->saved_point = rl_point;
|
|
buffer->saved_mark = rl_mark;
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|
|
rl_replace_line ("", true);
|
|
if (self->prompt_shown > 0)
|
|
rl_redisplay ();
|
|
}
|
|
|
|
static void
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input_rl__restore_buffer (struct input_rl *self, struct input_rl_buffer *buffer)
|
|
{
|
|
if (buffer->history)
|
|
{
|
|
// history_get_history_state() just allocates a new HISTORY_STATE
|
|
// and fills it with its current internal data. We don't need that
|
|
// shell anymore after reviving it.
|
|
history_set_history_state (buffer->history);
|
|
free (buffer->history);
|
|
buffer->history = NULL;
|
|
}
|
|
else
|
|
{
|
|
// This should get us a clean history while keeping the flags.
|
|
// Note that we've either saved the previous history entries, or we've
|
|
// cleared them altogether, so there should be nothing to leak.
|
|
HISTORY_STATE *state = history_get_history_state ();
|
|
state->offset = state->length = state->size = 0;
|
|
state->entries = NULL;
|
|
history_set_history_state (state);
|
|
free (state);
|
|
}
|
|
|
|
if (buffer->saved_line)
|
|
{
|
|
rl_replace_line (buffer->saved_line, true);
|
|
rl_point = buffer->saved_point;
|
|
rl_mark = buffer->saved_mark;
|
|
cstr_set (&buffer->saved_line, NULL);
|
|
|
|
if (self->prompt_shown > 0)
|
|
rl_redisplay ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
input_rl_buffer_switch (void *input, input_buffer_t input_buffer)
|
|
{
|
|
struct input_rl *self = input;
|
|
struct input_rl_buffer *buffer = input_buffer;
|
|
// There could possibly be occurences of the current undo list in some
|
|
// history entry. We either need to free the undo list, or move it
|
|
// somewhere else to load back later, as the buffer we're switching to
|
|
// has its own history state.
|
|
rl_free_undo_list ();
|
|
|
|
// Save this buffer's history so that it's independent for each buffer
|
|
if (self->current)
|
|
input_rl__save_buffer (self, self->current);
|
|
else
|
|
// Just throw it away; there should always be an active buffer however
|
|
#if RL_READLINE_VERSION >= 0x0603
|
|
rl_clear_history ();
|
|
#else // RL_READLINE_VERSION < 0x0603
|
|
// At least something... this may leak undo entries
|
|
clear_history ();
|
|
#endif // RL_READLINE_VERSION < 0x0603
|
|
|
|
input_rl__restore_buffer (self, buffer);
|
|
self->current = buffer;
|
|
}
|
|
|
|
static void
|
|
input_rl__buffer_destroy_wo_history (struct input_rl_buffer *self)
|
|
{
|
|
free (self->history);
|
|
free (self->saved_line);
|
|
free (self);
|
|
}
|
|
|
|
static void
|
|
input_rl_buffer_destroy (void *input, input_buffer_t input_buffer)
|
|
{
|
|
(void) input;
|
|
struct input_rl_buffer *buffer = input_buffer;
|
|
|
|
// rl_clear_history, being the only way I know of to get rid of the complete
|
|
// history including attached data, is a pretty recent addition. *sigh*
|
|
#if RL_READLINE_VERSION >= 0x0603
|
|
if (buffer->history)
|
|
{
|
|
// See input_rl_buffer_switch() for why we need to do this BS
|
|
rl_free_undo_list ();
|
|
|
|
// This is probably the only way we can free the history fully
|
|
HISTORY_STATE *state = history_get_history_state ();
|
|
|
|
history_set_history_state (buffer->history);
|
|
rl_clear_history ();
|
|
// rl_clear_history just removes history entries,
|
|
// we have to reclaim memory for their actual container ourselves
|
|
free (buffer->history->entries);
|
|
free (buffer->history);
|
|
buffer->history = NULL;
|
|
|
|
history_set_history_state (state);
|
|
free (state);
|
|
}
|
|
#endif // RL_READLINE_VERSION
|
|
|
|
input_rl__buffer_destroy_wo_history (buffer);
|
|
}
|
|
|
|
static input_buffer_t
|
|
input_rl_buffer_new (void *input)
|
|
{
|
|
(void) input;
|
|
struct input_rl_buffer *self = xcalloc (1, sizeof *self);
|
|
return self;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// Since {save,restore}_buffer() store history, we can't use them here like we
|
|
// do with libedit, because then buffer_destroy() can free memory that's still
|
|
// being used by readline. This situation is bound to happen on quit.
|
|
|
|
static void
|
|
input_rl__save (struct input_rl *self)
|
|
{
|
|
hard_assert (!self->saved_line);
|
|
|
|
self->saved_point = rl_point;
|
|
self->saved_mark = rl_mark;
|
|
self->saved_line = rl_copy_text (0, rl_end);
|
|
}
|
|
|
|
static void
|
|
input_rl__restore (struct input_rl *self)
|
|
{
|
|
hard_assert (self->saved_line);
|
|
|
|
rl_set_prompt (self->prompt);
|
|
rl_replace_line (self->saved_line, false);
|
|
rl_point = self->saved_point;
|
|
rl_mark = self->saved_mark;
|
|
cstr_set (&self->saved_line, NULL);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_rl_hide (void *input)
|
|
{
|
|
struct input_rl *self = input;
|
|
if (!self->active || self->prompt_shown-- < 1)
|
|
return;
|
|
|
|
input_rl__save (self);
|
|
input_rl__erase (self);
|
|
}
|
|
|
|
static void
|
|
input_rl_show (void *input)
|
|
{
|
|
struct input_rl *self = input;
|
|
if (!self->active || ++self->prompt_shown < 1)
|
|
return;
|
|
|
|
input_rl__restore (self);
|
|
rl_redisplay ();
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_rl_on_tty_resized (void *input)
|
|
{
|
|
(void) input;
|
|
// This fucks up big time on terminals with automatic wrapping such as
|
|
// rxvt-unicode or newer VTE when the current line overflows, however we
|
|
// can't do much about that
|
|
rl_resize_terminal ();
|
|
}
|
|
|
|
static void
|
|
input_rl_on_tty_readable (void *input)
|
|
{
|
|
(void) input;
|
|
rl_callback_read_char ();
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_rl_destroy (void *input)
|
|
{
|
|
struct input_rl *self = input;
|
|
free (self->saved_line);
|
|
LIST_FOR_EACH (struct input_rl_fn, iter, self->fns)
|
|
ffi_closure_free (iter);
|
|
free (self->prompt);
|
|
free (self);
|
|
}
|
|
|
|
#define XX(a) .a = input_rl_ ## a,
|
|
static struct input_vtable input_rl_vtable = { INPUT_VTABLE (XX) };
|
|
#undef XX
|
|
|
|
static struct input *
|
|
input_rl_new (void)
|
|
{
|
|
struct input_rl *self = xcalloc (1, sizeof *self);
|
|
self->super.vtable = &input_rl_vtable;
|
|
return &self->super;
|
|
}
|
|
|
|
#define input_new input_rl_new
|
|
#endif // HAVE_READLINE
|
|
|
|
// --- BSD Editline ------------------------------------------------------------
|
|
|
|
#ifdef HAVE_EDITLINE
|
|
|
|
#include <histedit.h>
|
|
|
|
#define INPUT_START_IGNORE '\x01'
|
|
#define INPUT_END_IGNORE '\x01'
|
|
|
|
struct input_el_fn
|
|
{
|
|
ffi_closure closure; ///< Closure
|
|
|
|
LIST_HEADER (struct input_el_fn)
|
|
input_fn callback; ///< Real callback
|
|
void *user_data; ///< Real callback user data
|
|
|
|
wchar_t *name; ///< Function name
|
|
wchar_t *help; ///< Function help
|
|
};
|
|
|
|
struct input_el_buffer
|
|
{
|
|
HistoryW *history; ///< The history object
|
|
wchar_t *saved_line; ///< Saved line content
|
|
int saved_len; ///< Length of the saved line
|
|
int saved_point; ///< Saved cursor position
|
|
};
|
|
|
|
struct input_el
|
|
{
|
|
struct input super; ///< Parent class
|
|
EditLine *editline; ///< The EditLine object
|
|
|
|
bool active; ///< Are we a thing?
|
|
char *prompt; ///< The prompt we use
|
|
int prompt_shown; ///< Whether the prompt is shown now
|
|
|
|
struct input_el_fn *fns; ///< Named functions
|
|
struct input_el_buffer *current; ///< Current input buffer
|
|
};
|
|
|
|
static void app_editline_init (struct input_el *self);
|
|
|
|
static int
|
|
input_el__get_termios (int character, int fallback)
|
|
{
|
|
if (!g_terminal.initialized)
|
|
return fallback;
|
|
|
|
cc_t value = g_terminal.termios.c_cc[character];
|
|
if (value == _POSIX_VDISABLE)
|
|
return fallback;
|
|
return value;
|
|
}
|
|
|
|
static void
|
|
input_el__redisplay (void *input)
|
|
{
|
|
// See rl_redisplay()
|
|
struct input_el *self = input;
|
|
char x[] = { input_el__get_termios (VREPRINT, 'R' - 0x40), 0 };
|
|
el_push (self->editline, x);
|
|
|
|
// We have to do this or it gets stuck and nothing is done
|
|
int count = 0;
|
|
(void) el_wgets (self->editline, &count);
|
|
}
|
|
|
|
static char *
|
|
input_el__make_prompt (EditLine *editline)
|
|
{
|
|
struct input_el *self;
|
|
el_get (editline, EL_CLIENTDATA, &self);
|
|
if (!self->prompt)
|
|
return "";
|
|
return self->prompt;
|
|
}
|
|
|
|
static char *
|
|
input_el__make_empty_prompt (EditLine *editline)
|
|
{
|
|
(void) editline;
|
|
return "";
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_ding (void *input)
|
|
{
|
|
// XXX: this isn't probably very portable;
|
|
// we could use "bell" from terminfo but that creates a dependency
|
|
(void) input;
|
|
write (STDOUT_FILENO, "\a", 1);
|
|
}
|
|
|
|
static const char *
|
|
input_el_get_prompt (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
return self->prompt;
|
|
}
|
|
|
|
static void
|
|
input_el_set_prompt (void *input, char *prompt)
|
|
{
|
|
struct input_el *self = input;
|
|
cstr_set (&self->prompt, prompt);
|
|
|
|
if (self->prompt_shown > 0)
|
|
input_el__redisplay (self);
|
|
}
|
|
|
|
static void
|
|
input_el_clear_line (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
const LineInfoW *info = el_wline (self->editline);
|
|
int len = info->lastchar - info->buffer;
|
|
int point = info->cursor - info->buffer;
|
|
el_cursor (self->editline, len - point);
|
|
el_wdeletestr (self->editline, len);
|
|
input_el__redisplay (self);
|
|
}
|
|
|
|
static void
|
|
input_el__erase (struct input_el *self)
|
|
{
|
|
el_set (self->editline, EL_PROMPT, input_el__make_empty_prompt);
|
|
input_el_clear_line (self);
|
|
}
|
|
|
|
static bool
|
|
input_el_insert (void *input, const char *s)
|
|
{
|
|
struct input_el *self = input;
|
|
bool success = !*s || !el_insertstr (self->editline, s);
|
|
if (self->prompt_shown > 0)
|
|
input_el__redisplay (self);
|
|
return success;
|
|
}
|
|
|
|
static char *
|
|
input_el_get_line (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
const LineInfo *info = el_line (self->editline);
|
|
return xstrndup (info->buffer, info->lastchar - info->buffer);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_bind (void *input, const char *seq, const char *function_name)
|
|
{
|
|
struct input_el *self = input;
|
|
el_set (self->editline, EL_BIND, seq, function_name, NULL);
|
|
}
|
|
|
|
static void
|
|
input_el_bind_meta (void *input, char key, const char *function_name)
|
|
{
|
|
char keyseq[] = { 'M', '-', key, 0 };
|
|
input_el_bind (input, keyseq, function_name);
|
|
}
|
|
|
|
static void
|
|
input_el_bind_control (void *input, char key, const char *function_name)
|
|
{
|
|
char keyseq[] = { '^', key, 0 };
|
|
input_el_bind (input, keyseq, function_name);
|
|
}
|
|
|
|
static void
|
|
input_el__forward (ffi_cif *cif, void *ret, void **args, void *user_data)
|
|
{
|
|
(void) cif;
|
|
|
|
struct input_el_fn *data = user_data;
|
|
*(unsigned char *) ret = data->callback
|
|
(1, *(int *) args[1], data->user_data) ? CC_NORM : CC_ERROR;
|
|
}
|
|
|
|
static wchar_t *
|
|
ascii_to_wide (const char *ascii)
|
|
{
|
|
size_t len = strlen (ascii) + 1;
|
|
wchar_t *wide = xcalloc (sizeof *wide, len);
|
|
while (len--)
|
|
hard_assert ((wide[len] = (unsigned char) ascii[len]) < 0x80);
|
|
return wide;
|
|
}
|
|
|
|
static void
|
|
input_el_register_fn (void *input,
|
|
const char *name, const char *help, input_fn callback, void *user_data)
|
|
{
|
|
void *bound_fn = NULL;
|
|
struct input_el_fn *data = ffi_closure_alloc (sizeof *data, &bound_fn);
|
|
hard_assert (data);
|
|
|
|
static ffi_cif cif;
|
|
static ffi_type *args[2] = { &ffi_type_pointer, &ffi_type_sint };
|
|
hard_assert (ffi_prep_cif
|
|
(&cif, FFI_DEFAULT_ABI, 2, &ffi_type_uchar, args) == FFI_OK);
|
|
|
|
data->user_data = user_data;
|
|
data->callback = callback;
|
|
data->name = ascii_to_wide (name);
|
|
data->help = ascii_to_wide (help);
|
|
hard_assert (ffi_prep_closure_loc (&data->closure,
|
|
&cif, input_el__forward, data, bound_fn) == FFI_OK);
|
|
|
|
struct input_el *self = input;
|
|
el_wset (self->editline, EL_ADDFN, data->name, data->help, bound_fn);
|
|
LIST_PREPEND (self->fns, data);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_start (void *input, const char *program_name)
|
|
{
|
|
struct input_el *self = input;
|
|
self->editline = el_init (program_name, stdin, stdout, stderr);
|
|
el_set (self->editline, EL_CLIENTDATA, self);
|
|
el_set (self->editline, EL_PROMPT_ESC,
|
|
input_el__make_prompt, INPUT_START_IGNORE);
|
|
el_set (self->editline, EL_SIGNAL, false);
|
|
el_set (self->editline, EL_UNBUFFERED, true);
|
|
el_set (self->editline, EL_EDITOR, "emacs");
|
|
|
|
app_editline_init (self);
|
|
|
|
self->prompt_shown = 1;
|
|
self->active = true;
|
|
}
|
|
|
|
static void
|
|
input_el_stop (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
if (self->prompt_shown > 0)
|
|
input_el__erase (self);
|
|
|
|
el_end (self->editline);
|
|
self->editline = NULL;
|
|
self->active = false;
|
|
self->prompt_shown = false;
|
|
}
|
|
|
|
static void
|
|
input_el_prepare (void *input, bool enabled)
|
|
{
|
|
struct input_el *self = input;
|
|
el_set (self->editline, EL_PREP_TERM, enabled);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el__save_buffer (struct input_el *self, struct input_el_buffer *buffer)
|
|
{
|
|
const LineInfoW *info = el_wline (self->editline);
|
|
int len = info->lastchar - info->buffer;
|
|
int point = info->cursor - info->buffer;
|
|
|
|
wchar_t *line = calloc (sizeof *info->buffer, len + 1);
|
|
memcpy (line, info->buffer, sizeof *info->buffer * len);
|
|
el_cursor (self->editline, len - point);
|
|
el_wdeletestr (self->editline, len);
|
|
|
|
buffer->saved_line = line;
|
|
buffer->saved_point = point;
|
|
buffer->saved_len = len;
|
|
}
|
|
|
|
static void
|
|
input_el__save (struct input_el *self)
|
|
{
|
|
if (self->current)
|
|
input_el__save_buffer (self, self->current);
|
|
}
|
|
|
|
static void
|
|
input_el__restore_buffer (struct input_el *self, struct input_el_buffer *buffer)
|
|
{
|
|
if (buffer->saved_line)
|
|
{
|
|
el_winsertstr (self->editline, buffer->saved_line);
|
|
el_cursor (self->editline,
|
|
-(buffer->saved_len - buffer->saved_point));
|
|
free (buffer->saved_line);
|
|
buffer->saved_line = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
input_el__restore (struct input_el *self)
|
|
{
|
|
if (self->current)
|
|
input_el__restore_buffer (self, self->current);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_buffer_switch (void *input, input_buffer_t input_buffer)
|
|
{
|
|
struct input_el *self = input;
|
|
struct input_el_buffer *buffer = input_buffer;
|
|
|
|
if (self->current)
|
|
input_el__save_buffer (self, self->current);
|
|
|
|
input_el__restore_buffer (self, buffer);
|
|
el_wset (self->editline, EL_HIST, history, buffer->history);
|
|
self->current = buffer;
|
|
}
|
|
|
|
static void
|
|
input_el_buffer_destroy (void *input, input_buffer_t input_buffer)
|
|
{
|
|
(void) input;
|
|
struct input_el_buffer *buffer = input_buffer;
|
|
|
|
history_wend (buffer->history);
|
|
free (buffer->saved_line);
|
|
free (buffer);
|
|
}
|
|
|
|
static input_buffer_t
|
|
input_el_buffer_new (void *input)
|
|
{
|
|
(void) input;
|
|
struct input_el_buffer *self = xcalloc (1, sizeof *self);
|
|
self->history = history_winit ();
|
|
|
|
HistEventW ev;
|
|
history_w (self->history, &ev, H_SETSIZE, HISTORY_LIMIT);
|
|
return self;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_hide (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
if (!self->active || self->prompt_shown-- < 1)
|
|
return;
|
|
|
|
input_el__save (self);
|
|
input_el__erase (self);
|
|
}
|
|
|
|
static void
|
|
input_el_show (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
if (!self->active || ++self->prompt_shown < 1)
|
|
return;
|
|
|
|
input_el__restore (self);
|
|
el_set (self->editline,
|
|
EL_PROMPT_ESC, input_el__make_prompt, INPUT_START_IGNORE);
|
|
input_el__redisplay (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_on_tty_resized (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
el_resize (self->editline);
|
|
}
|
|
|
|
static void
|
|
input_el_on_tty_readable (void *input)
|
|
{
|
|
// We bind the return key to process it how we need to
|
|
struct input_el *self = input;
|
|
|
|
// el_gets() with EL_UNBUFFERED doesn't work with UTF-8,
|
|
// we must use the wide-character interface
|
|
int count = 0;
|
|
const wchar_t *buf = el_wgets (self->editline, &count);
|
|
if (!buf || count-- <= 0)
|
|
return;
|
|
|
|
if (count == 0 && buf[0] == ('D' - 0x40) /* hardcoded VEOF in editline */)
|
|
{
|
|
el_deletestr (self->editline, 1);
|
|
input_el__redisplay (self);
|
|
input_el_ding (self);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
input_el_destroy (void *input)
|
|
{
|
|
struct input_el *self = input;
|
|
LIST_FOR_EACH (struct input_el_fn, iter, self->fns)
|
|
{
|
|
free (iter->name);
|
|
free (iter->help);
|
|
ffi_closure_free (iter);
|
|
}
|
|
free (self->prompt);
|
|
free (self);
|
|
}
|
|
|
|
#define XX(a) .a = input_el_ ## a,
|
|
static struct input_vtable input_el_vtable = { INPUT_VTABLE (XX) };
|
|
#undef XX
|
|
|
|
static struct input *
|
|
input_el_new (void)
|
|
{
|
|
struct input_el *self = xcalloc (1, sizeof *self);
|
|
self->super.vtable = &input_el_vtable;
|
|
return &self->super;
|
|
}
|
|
|
|
#define input_new input_el_new
|
|
#endif // HAVE_EDITLINE
|
|
|
|
// --- Application data --------------------------------------------------------
|
|
|
|
// All text stored in our data structures is encoded in UTF-8. Or at least
|
|
// should be--our only ways of retrieving strings are: via the command line
|
|
// (converted from locale, no room for errors), via the configuration file
|
|
// (restrictive ASCII grammar for bare words and an internal check for strings),
|
|
// and via plugins (meticulously validated).
|
|
//
|
|
// The only exception is IRC identifiers.
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// We need a few reference countable objects with support for both strong
|
|
// and weak references (mainly used for scripted plugins).
|
|
//
|
|
// Beware that if you don't own the object, you will most probably want
|
|
// to keep the weak reference link so that you can get rid of it later.
|
|
// Also note that you have to make sure the user_data don't leak resources.
|
|
//
|
|
// Having a callback is more versatile than just nulling out a pointer.
|
|
|
|
/// Callback just before a reference counted object is destroyed
|
|
typedef void (*destroy_cb_fn) (void *object, void *user_data);
|
|
|
|
struct weak_ref_link
|
|
{
|
|
LIST_HEADER (struct weak_ref_link)
|
|
|
|
destroy_cb_fn on_destroy; ///< Called when object is destroyed
|
|
void *user_data; ///< User data
|
|
};
|
|
|
|
static struct weak_ref_link *
|
|
weak_ref (struct weak_ref_link **list, destroy_cb_fn cb, void *user_data)
|
|
{
|
|
struct weak_ref_link *link = xcalloc (1, sizeof *link);
|
|
link->on_destroy = cb;
|
|
link->user_data = user_data;
|
|
LIST_PREPEND (*list, link);
|
|
return link;
|
|
}
|
|
|
|
static void
|
|
weak_unref (struct weak_ref_link **list, struct weak_ref_link **link)
|
|
{
|
|
if (*link)
|
|
LIST_UNLINK (*list, *link);
|
|
free (*link);
|
|
*link = NULL;
|
|
}
|
|
|
|
#define REF_COUNTABLE_HEADER \
|
|
size_t ref_count; /**< Reference count */ \
|
|
struct weak_ref_link *weak_refs; /**< To remove any weak references */
|
|
|
|
#define REF_COUNTABLE_METHODS(name) \
|
|
static struct name * \
|
|
name ## _ref (struct name *self) \
|
|
{ \
|
|
self->ref_count++; \
|
|
return self; \
|
|
} \
|
|
\
|
|
static void \
|
|
name ## _unref (struct name *self) \
|
|
{ \
|
|
if (--self->ref_count) \
|
|
return; \
|
|
LIST_FOR_EACH (struct weak_ref_link, iter, self->weak_refs) \
|
|
{ \
|
|
iter->on_destroy (self, iter->user_data); \
|
|
free (iter); \
|
|
} \
|
|
name ## _destroy (self); \
|
|
} \
|
|
\
|
|
static struct weak_ref_link * \
|
|
name ## _weak_ref (struct name *self, destroy_cb_fn cb, void *user_data) \
|
|
{ return weak_ref (&self->weak_refs, cb, user_data); } \
|
|
\
|
|
static void \
|
|
name ## _weak_unref (struct name *self, struct weak_ref_link **link) \
|
|
{ weak_unref (&self->weak_refs, link); }
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// Simple introspection framework to simplify exporting stuff to Lua, since
|
|
// there is a lot of it. While not fully automated, at least we have control
|
|
// over which fields are exported.
|
|
|
|
enum ispect_type
|
|
{
|
|
ISPECT_BOOL, ISPECT_INT, ISPECT_UINT, ISPECT_SIZE, ISPECT_STRING,
|
|
|
|
ISPECT_STR, ///< "struct str"
|
|
ISPECT_STR_MAP, ///< "struct str_map"
|
|
ISPECT_REF ///< Weakly referenced object
|
|
};
|
|
|
|
struct ispect_field
|
|
{
|
|
const char *name; ///< Name of the field
|
|
size_t offset; ///< Offset in the structure
|
|
enum ispect_type type; ///< Type of the field
|
|
|
|
enum ispect_type subtype; ///< STR_MAP subtype
|
|
struct ispect_field *fields; ///< REF target fields
|
|
bool is_list; ///< REF target is a list
|
|
};
|
|
|
|
#define ISPECT(object, field, type) \
|
|
{ #field, offsetof (struct object, field), ISPECT_##type, 0, NULL, false },
|
|
#define ISPECT_REF(object, field, is_list, ref_type) \
|
|
{ #field, offsetof (struct object, field), ISPECT_REF, 0, \
|
|
g_##ref_type##_ispect, is_list },
|
|
#define ISPECT_MAP(object, field, subtype) \
|
|
{ #field, offsetof (struct object, field), ISPECT_STR_MAP, \
|
|
ISPECT_##subtype, NULL, false },
|
|
#define ISPECT_MAP_REF(object, field, is_list, ref_type) \
|
|
{ #field, offsetof (struct object, field), ISPECT_STR_MAP, \
|
|
ISPECT_REF, g_##ref_type##_ispect, is_list },
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct user_channel
|
|
{
|
|
LIST_HEADER (struct user_channel)
|
|
|
|
struct channel *channel; ///< Reference to channel
|
|
};
|
|
|
|
static struct user_channel *
|
|
user_channel_new (struct channel *channel)
|
|
{
|
|
struct user_channel *self = xcalloc (1, sizeof *self);
|
|
self->channel = channel;
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
user_channel_destroy (struct user_channel *self)
|
|
{
|
|
// The "channel" reference is weak and this object should get
|
|
// destroyed whenever the user stops being in the channel.
|
|
free (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// We keep references to user information in channels and buffers,
|
|
// and weak references in the name lookup table.
|
|
|
|
struct user
|
|
{
|
|
REF_COUNTABLE_HEADER
|
|
|
|
char *nickname; ///< Literal nickname
|
|
// TODO: write code to poll for the away status
|
|
bool away; ///< User is away
|
|
|
|
struct user_channel *channels; ///< Channels the user is on
|
|
};
|
|
|
|
static struct ispect_field g_user_ispect[] =
|
|
{
|
|
ISPECT( user, nickname, STRING )
|
|
ISPECT( user, away, BOOL )
|
|
{}
|
|
};
|
|
|
|
static struct user *
|
|
user_new (char *nickname)
|
|
{
|
|
struct user *self = xcalloc (1, sizeof *self);
|
|
self->ref_count = 1;
|
|
self->nickname = nickname;
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
user_destroy (struct user *self)
|
|
{
|
|
free (self->nickname);
|
|
LIST_FOR_EACH (struct user_channel, iter, self->channels)
|
|
user_channel_destroy (iter);
|
|
free (self);
|
|
}
|
|
|
|
REF_COUNTABLE_METHODS (user)
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct channel_user
|
|
{
|
|
LIST_HEADER (struct channel_user)
|
|
|
|
struct user *user; ///< Reference to user
|
|
char *prefixes; ///< Ordered @+... characters
|
|
};
|
|
|
|
static struct channel_user *
|
|
channel_user_new (struct user *user, const char *prefixes)
|
|
{
|
|
struct channel_user *self = xcalloc (1, sizeof *self);
|
|
self->user = user;
|
|
self->prefixes = xstrdup (prefixes);
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
channel_user_destroy (struct channel_user *self)
|
|
{
|
|
user_unref (self->user);
|
|
free (self->prefixes);
|
|
free (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// We keep references to channels in their buffers,
|
|
// and weak references in their users and the name lookup table.
|
|
|
|
struct channel
|
|
{
|
|
REF_COUNTABLE_HEADER
|
|
|
|
char *name; ///< Channel name
|
|
char *topic; ///< Channel topic
|
|
|
|
// XXX: write something like an ordered set of characters object?
|
|
struct str no_param_modes; ///< No parameter channel modes
|
|
struct str_map param_modes; ///< Parametrized channel modes
|
|
|
|
struct channel_user *users; ///< Channel users
|
|
struct strv names_buf; ///< Buffer for RPL_NAMREPLY
|
|
size_t users_len; ///< User count
|
|
|
|
bool left_manually; ///< Don't rejoin on reconnect
|
|
};
|
|
|
|
static struct ispect_field g_channel_ispect[] =
|
|
{
|
|
ISPECT( channel, name, STRING )
|
|
ISPECT( channel, topic, STRING )
|
|
ISPECT( channel, no_param_modes, STR )
|
|
ISPECT_MAP( channel, param_modes, STRING )
|
|
ISPECT( channel, users_len, SIZE )
|
|
ISPECT( channel, left_manually, BOOL )
|
|
{}
|
|
};
|
|
|
|
static struct channel *
|
|
channel_new (char *name, char *topic)
|
|
{
|
|
struct channel *self = xcalloc (1, sizeof *self);
|
|
self->ref_count = 1;
|
|
self->name = name;
|
|
self->topic = topic;
|
|
self->no_param_modes = str_make ();
|
|
self->param_modes = str_map_make (free);
|
|
self->names_buf = strv_make ();
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
channel_destroy (struct channel *self)
|
|
{
|
|
free (self->name);
|
|
free (self->topic);
|
|
str_free (&self->no_param_modes);
|
|
str_map_free (&self->param_modes);
|
|
// Owner has to make sure we have no users by now
|
|
hard_assert (!self->users && !self->users_len);
|
|
strv_free (&self->names_buf);
|
|
free (self);
|
|
}
|
|
|
|
REF_COUNTABLE_METHODS (channel)
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
enum formatter_item_type
|
|
{
|
|
FORMATTER_ITEM_END, ///< Sentinel value for arrays
|
|
FORMATTER_ITEM_TEXT, ///< Text
|
|
FORMATTER_ITEM_ATTR, ///< Formatting attributes
|
|
FORMATTER_ITEM_FG_COLOR, ///< Foreground colour
|
|
FORMATTER_ITEM_BG_COLOR, ///< Background colour
|
|
FORMATTER_ITEM_SIMPLE, ///< Toggle mIRC formatting
|
|
FORMATTER_ITEM_IGNORE_ATTR ///< Un/set attribute ignoration
|
|
};
|
|
|
|
struct formatter_item
|
|
{
|
|
enum formatter_item_type type : 16; ///< Type of this item
|
|
int attribute : 16; ///< Attribute ID
|
|
int color; ///< Colour
|
|
char *text; ///< String
|
|
};
|
|
|
|
static void
|
|
formatter_item_free (struct formatter_item *self)
|
|
{
|
|
free (self->text);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct formatter
|
|
{
|
|
struct app_context *ctx; ///< Application context
|
|
struct server *s; ///< Server
|
|
|
|
struct formatter_item *items; ///< Items
|
|
size_t items_len; ///< Items used
|
|
size_t items_alloc; ///< Items allocated
|
|
};
|
|
|
|
static struct formatter
|
|
formatter_make (struct app_context *ctx, struct server *s)
|
|
{
|
|
struct formatter self = { .ctx = ctx, .s = s };
|
|
self.items = xcalloc (sizeof *self.items, (self.items_alloc = 16));
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
formatter_free (struct formatter *self)
|
|
{
|
|
for (size_t i = 0; i < self->items_len; i++)
|
|
formatter_item_free (&self->items[i]);
|
|
free (self->items);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
enum buffer_line_flags
|
|
{
|
|
BUFFER_LINE_STATUS = 1 << 0, ///< Status message
|
|
BUFFER_LINE_ERROR = 1 << 1, ///< Error message
|
|
BUFFER_LINE_HIGHLIGHT = 1 << 2, ///< The user was highlighted by this
|
|
BUFFER_LINE_SKIP_FILE = 1 << 3, ///< Don't log this to file
|
|
BUFFER_LINE_INDENT = 1 << 4, ///< Just indent the line
|
|
BUFFER_LINE_UNIMPORTANT = 1 << 5 ///< Joins, parts, similar spam
|
|
};
|
|
|
|
struct buffer_line
|
|
{
|
|
LIST_HEADER (struct buffer_line)
|
|
|
|
int flags; ///< Flags
|
|
time_t when; ///< Time of the event
|
|
struct formatter_item items[]; ///< Line data
|
|
};
|
|
|
|
/// Create a new buffer line stealing all data from the provided formatter
|
|
struct buffer_line *
|
|
buffer_line_new (struct formatter *f)
|
|
{
|
|
// We make space for one more item that gets initialized to all zeros,
|
|
// meaning FORMATTER_ITEM_END (because it's the first value in the enum)
|
|
size_t items_size = f->items_len * sizeof *f->items;
|
|
struct buffer_line *self =
|
|
xcalloc (1, sizeof *self + items_size + sizeof *self->items);
|
|
memcpy (self->items, f->items, items_size);
|
|
|
|
// We've stolen pointers from the formatter, let's destroy it altogether
|
|
free (f->items);
|
|
memset (f, 0, sizeof *f);
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
buffer_line_destroy (struct buffer_line *self)
|
|
{
|
|
for (struct formatter_item *iter = self->items; iter->type; iter++)
|
|
formatter_item_free (iter);
|
|
free (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
enum buffer_type
|
|
{
|
|
BUFFER_GLOBAL, ///< Global information
|
|
BUFFER_SERVER, ///< Server-related messages
|
|
BUFFER_CHANNEL, ///< Channels
|
|
BUFFER_PM ///< Private messages (query)
|
|
};
|
|
|
|
struct buffer
|
|
{
|
|
LIST_HEADER (struct buffer)
|
|
REF_COUNTABLE_HEADER
|
|
|
|
enum buffer_type type; ///< Type of the buffer
|
|
char *name; ///< The name of the buffer
|
|
|
|
struct input *input; ///< API for "input_data"
|
|
input_buffer_t input_data; ///< User interface data
|
|
|
|
// Buffer contents:
|
|
|
|
struct buffer_line *lines; ///< All lines in this buffer
|
|
struct buffer_line *lines_tail; ///< The tail of buffer lines
|
|
unsigned lines_count; ///< How many lines we have
|
|
|
|
unsigned new_messages_count; ///< # messages since last left
|
|
unsigned new_unimportant_count; ///< How much of that is unimportant
|
|
bool highlighted; ///< We've been highlighted
|
|
bool hide_unimportant; ///< Hide unimportant messages
|
|
|
|
FILE *log_file; ///< Log file
|
|
|
|
// Origin information:
|
|
|
|
struct server *server; ///< Reference to server
|
|
struct channel *channel; ///< Reference to channel
|
|
struct user *user; ///< Reference to user
|
|
};
|
|
|
|
static struct ispect_field g_server_ispect[];
|
|
static struct ispect_field g_buffer_ispect[] =
|
|
{
|
|
ISPECT( buffer, name, STRING )
|
|
ISPECT( buffer, new_messages_count, UINT )
|
|
ISPECT( buffer, new_unimportant_count, UINT )
|
|
ISPECT( buffer, highlighted, BOOL )
|
|
ISPECT( buffer, hide_unimportant, BOOL )
|
|
ISPECT_REF( buffer, server, false, server )
|
|
ISPECT_REF( buffer, channel, false, channel )
|
|
ISPECT_REF( buffer, user, false, user )
|
|
{}
|
|
};
|
|
|
|
static struct buffer *
|
|
buffer_new (struct input *input)
|
|
{
|
|
struct buffer *self = xcalloc (1, sizeof *self);
|
|
self->ref_count = 1;
|
|
self->input = input;
|
|
self->input_data = CALL (input, buffer_new);
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
buffer_destroy (struct buffer *self)
|
|
{
|
|
free (self->name);
|
|
if (self->input_data)
|
|
{
|
|
#ifdef HAVE_READLINE
|
|
// FIXME: can't really free "history" contents from here, as we cannot
|
|
// be sure that the user interface pointer is valid and usable
|
|
input_rl__buffer_destroy_wo_history (self->input_data);
|
|
#else // ! HAVE_READLINE
|
|
CALL_ (self->input, buffer_destroy, self->input_data);
|
|
#endif // ! HAVE_READLINE
|
|
}
|
|
LIST_FOR_EACH (struct buffer_line, iter, self->lines)
|
|
buffer_line_destroy (iter);
|
|
if (self->log_file)
|
|
(void) fclose (self->log_file);
|
|
if (self->user)
|
|
user_unref (self->user);
|
|
if (self->channel)
|
|
channel_unref (self->channel);
|
|
free (self);
|
|
}
|
|
|
|
REF_COUNTABLE_METHODS (buffer)
|
|
#define buffer_ref do_not_use_dangerous
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// The only real purpose of this is to abstract away TLS
|
|
struct transport
|
|
{
|
|
/// Initialize the transport
|
|
bool (*init) (struct server *s, const char *hostname, struct error **e);
|
|
/// Destroy the user data pointer
|
|
void (*cleanup) (struct server *s);
|
|
|
|
/// The underlying socket may have become readable, update `read_buffer'
|
|
enum socket_io_result (*try_read) (struct server *s);
|
|
/// The underlying socket may have become writeable, flush `write_buffer'
|
|
enum socket_io_result (*try_write) (struct server *s);
|
|
/// Return event mask to use in the poller
|
|
int (*get_poll_events) (struct server *s);
|
|
|
|
/// Called just before closing the connection from our side
|
|
void (*in_before_shutdown) (struct server *s);
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
enum server_state
|
|
{
|
|
IRC_DISCONNECTED, ///< Not connected
|
|
IRC_CONNECTING, ///< Connecting to the server
|
|
IRC_CONNECTED, ///< Trying to register
|
|
IRC_REGISTERED, ///< We can chat now
|
|
IRC_CLOSING, ///< Flushing output before shutdown
|
|
IRC_HALF_CLOSED ///< Connection shutdown from our side
|
|
};
|
|
|
|
/// Convert an IRC identifier character to lower-case
|
|
typedef int (*irc_tolower_fn) (int);
|
|
|
|
/// Key conversion function for hashmap lookups
|
|
typedef size_t (*irc_strxfrm_fn) (char *, const char *, size_t);
|
|
|
|
struct server
|
|
{
|
|
REF_COUNTABLE_HEADER
|
|
struct app_context *ctx; ///< Application context
|
|
|
|
char *name; ///< Server identifier
|
|
struct buffer *buffer; ///< The buffer for this server
|
|
struct config_item *config; ///< Configuration root
|
|
|
|
// Connection:
|
|
|
|
enum server_state state; ///< Connection state
|
|
struct connector *connector; ///< Connection establisher
|
|
struct socks_connector *socks_conn; ///< SOCKS connection establisher
|
|
unsigned reconnect_attempt; ///< Number of reconnect attempt
|
|
bool manual_disconnect; ///< Don't reconnect after disconnect
|
|
|
|
int socket; ///< Socket FD of the server
|
|
struct str read_buffer; ///< Input yet to be processed
|
|
struct str write_buffer; ///< Outut yet to be be sent out
|
|
struct poller_fd socket_event; ///< We can read from the socket
|
|
|
|
struct transport *transport; ///< Transport method
|
|
void *transport_data; ///< Transport data
|
|
|
|
// Events:
|
|
|
|
struct poller_timer ping_tmr; ///< We should send a ping
|
|
struct poller_timer timeout_tmr; ///< Connection seems to be dead
|
|
struct poller_timer reconnect_tmr; ///< We should reconnect now
|
|
struct poller_timer autojoin_tmr; ///< Re/join channels as appropriate
|
|
|
|
// IRC:
|
|
|
|
// TODO: an output queue to prevent excess floods (this will be needed
|
|
// especially for away status polling)
|
|
|
|
bool rehashing; ///< Rehashing IRC identifiers
|
|
|
|
struct str_map irc_users; ///< IRC user data
|
|
struct str_map irc_channels; ///< IRC channel data
|
|
struct str_map irc_buffer_map; ///< Maps IRC identifiers to buffers
|
|
|
|
struct user *irc_user; ///< Our own user
|
|
int nick_counter; ///< Iterates "nicks" when registering
|
|
struct str irc_user_mode; ///< Our current user modes
|
|
char *irc_user_host; ///< Our current user@host
|
|
bool autoaway_active; ///< Autoaway is currently active
|
|
|
|
bool cap_echo_message; ///< Whether the server echos messages
|
|
|
|
// Server-specific information (from RPL_ISUPPORT):
|
|
|
|
irc_tolower_fn irc_tolower; ///< Server tolower()
|
|
irc_strxfrm_fn irc_strxfrm; ///< Server strxfrm()
|
|
|
|
char *irc_chantypes; ///< Channel types (name prefixes)
|
|
char *irc_idchan_prefixes; ///< Prefixes for "safe channels"
|
|
char *irc_statusmsg; ///< Prefixes for channel targets
|
|
|
|
char *irc_chanmodes_list; ///< Channel modes for lists
|
|
char *irc_chanmodes_param_always; ///< Channel modes with mandatory param
|
|
char *irc_chanmodes_param_when_set; ///< Channel modes with param when set
|
|
char *irc_chanmodes_param_never; ///< Channel modes without param
|
|
|
|
char *irc_chanuser_prefixes; ///< Channel user prefixes
|
|
char *irc_chanuser_modes; ///< Channel user modes
|
|
|
|
unsigned irc_max_modes; ///< Max parametrized modes per command
|
|
};
|
|
|
|
static struct ispect_field g_server_ispect[] =
|
|
{
|
|
ISPECT( server, name, STRING )
|
|
ISPECT( server, state, INT )
|
|
ISPECT( server, reconnect_attempt, UINT )
|
|
ISPECT( server, manual_disconnect, BOOL )
|
|
ISPECT( server, irc_user_host, STRING )
|
|
ISPECT( server, autoaway_active, BOOL )
|
|
ISPECT( server, cap_echo_message, BOOL )
|
|
ISPECT_REF( server, buffer, false, buffer )
|
|
|
|
// TODO: either rename the underlying field or fix the plugins
|
|
{ "user", offsetof (struct server, irc_user),
|
|
ISPECT_REF, 0, g_user_ispect, false },
|
|
{ "user_mode", offsetof (struct server, irc_user_mode),
|
|
ISPECT_STR, 0, NULL, false },
|
|
|
|
{}
|
|
};
|
|
|
|
static void on_irc_timeout (void *user_data);
|
|
static void on_irc_ping_timeout (void *user_data);
|
|
static void on_irc_autojoin_timeout (void *user_data);
|
|
static void irc_initiate_connect (struct server *s);
|
|
|
|
static void
|
|
server_init_specifics (struct server *self)
|
|
{
|
|
// Defaults as per the RPL_ISUPPORT drafts, or RFC 1459
|
|
|
|
self->irc_tolower = irc_tolower;
|
|
self->irc_strxfrm = irc_strxfrm;
|
|
|
|
self->irc_chantypes = xstrdup ("#&");
|
|
self->irc_idchan_prefixes = xstrdup ("");
|
|
self->irc_statusmsg = xstrdup ("");
|
|
|
|
self->irc_chanmodes_list = xstrdup ("b");
|
|
self->irc_chanmodes_param_always = xstrdup ("k");
|
|
self->irc_chanmodes_param_when_set = xstrdup ("l");
|
|
self->irc_chanmodes_param_never = xstrdup ("imnpst");
|
|
|
|
self->irc_chanuser_prefixes = xstrdup ("@+");
|
|
self->irc_chanuser_modes = xstrdup ("ov");
|
|
|
|
self->irc_max_modes = 3;
|
|
}
|
|
|
|
static void
|
|
server_free_specifics (struct server *self)
|
|
{
|
|
free (self->irc_chantypes);
|
|
free (self->irc_idchan_prefixes);
|
|
free (self->irc_statusmsg);
|
|
|
|
free (self->irc_chanmodes_list);
|
|
free (self->irc_chanmodes_param_always);
|
|
free (self->irc_chanmodes_param_when_set);
|
|
free (self->irc_chanmodes_param_never);
|
|
|
|
free (self->irc_chanuser_prefixes);
|
|
free (self->irc_chanuser_modes);
|
|
}
|
|
|
|
static struct server *
|
|
server_new (struct poller *poller)
|
|
{
|
|
struct server *self = xcalloc (1, sizeof *self);
|
|
self->ref_count = 1;
|
|
|
|
self->socket = -1;
|
|
self->read_buffer = str_make ();
|
|
self->write_buffer = str_make ();
|
|
self->state = IRC_DISCONNECTED;
|
|
|
|
self->timeout_tmr = poller_timer_make (poller);
|
|
self->timeout_tmr.dispatcher = on_irc_timeout;
|
|
self->timeout_tmr.user_data = self;
|
|
|
|
self->ping_tmr = poller_timer_make (poller);
|
|
self->ping_tmr.dispatcher = on_irc_ping_timeout;
|
|
self->ping_tmr.user_data = self;
|
|
|
|
self->reconnect_tmr = poller_timer_make (poller);
|
|
self->reconnect_tmr.dispatcher = (poller_timer_fn) irc_initiate_connect;
|
|
self->reconnect_tmr.user_data = self;
|
|
|
|
self->autojoin_tmr = poller_timer_make (poller);
|
|
self->autojoin_tmr.dispatcher = on_irc_autojoin_timeout;
|
|
self->autojoin_tmr.user_data = self;
|
|
|
|
self->irc_users = str_map_make (NULL);
|
|
self->irc_users.key_xfrm = irc_strxfrm;
|
|
self->irc_channels = str_map_make (NULL);
|
|
self->irc_channels.key_xfrm = irc_strxfrm;
|
|
self->irc_buffer_map = str_map_make (NULL);
|
|
self->irc_buffer_map.key_xfrm = irc_strxfrm;
|
|
|
|
self->irc_user_mode = str_make ();
|
|
|
|
server_init_specifics (self);
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
server_destroy (struct server *self)
|
|
{
|
|
free (self->name);
|
|
|
|
if (self->connector)
|
|
{
|
|
connector_free (self->connector);
|
|
free (self->connector);
|
|
}
|
|
if (self->socks_conn)
|
|
{
|
|
socks_connector_free (self->socks_conn);
|
|
free (self->socks_conn);
|
|
}
|
|
|
|
if (self->transport
|
|
&& self->transport->cleanup)
|
|
self->transport->cleanup (self);
|
|
|
|
if (self->socket != -1)
|
|
{
|
|
poller_fd_reset (&self->socket_event);
|
|
xclose (self->socket);
|
|
}
|
|
str_free (&self->read_buffer);
|
|
str_free (&self->write_buffer);
|
|
|
|
poller_timer_reset (&self->ping_tmr);
|
|
poller_timer_reset (&self->timeout_tmr);
|
|
poller_timer_reset (&self->reconnect_tmr);
|
|
poller_timer_reset (&self->autojoin_tmr);
|
|
|
|
str_map_free (&self->irc_users);
|
|
str_map_free (&self->irc_channels);
|
|
str_map_free (&self->irc_buffer_map);
|
|
|
|
if (self->irc_user)
|
|
user_unref (self->irc_user);
|
|
str_free (&self->irc_user_mode);
|
|
free (self->irc_user_host);
|
|
|
|
server_free_specifics (self);
|
|
free (self);
|
|
}
|
|
|
|
REF_COUNTABLE_METHODS (server)
|
|
#define server_ref do_not_use_dangerous
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct plugin
|
|
{
|
|
LIST_HEADER (struct plugin)
|
|
|
|
char *name; ///< Name of the plugin
|
|
struct plugin_vtable *vtable; ///< Methods
|
|
};
|
|
|
|
struct plugin_vtable
|
|
{
|
|
/// Unregister and free the plugin including all relevant resources
|
|
void (*free) (struct plugin *self);
|
|
};
|
|
|
|
static void
|
|
plugin_destroy (struct plugin *self)
|
|
{
|
|
self->vtable->free (self);
|
|
free (self->name);
|
|
free (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// This is a bit ugly since insertion is O(n) and the need to get rid of the
|
|
// specific type because of list macros, however I don't currently posses any
|
|
// strictly better, ordered data structure
|
|
|
|
struct hook
|
|
{
|
|
LIST_HEADER (struct hook)
|
|
int priority; ///< The lesser the sooner
|
|
};
|
|
|
|
static struct hook *
|
|
hook_insert (struct hook *list, struct hook *item)
|
|
{
|
|
// Corner cases: list is empty or we precede everything
|
|
if (!list || item->priority < list->priority)
|
|
{
|
|
LIST_PREPEND (list, item);
|
|
return list;
|
|
}
|
|
|
|
// Otherwise fast-forward to the last entry that precedes us
|
|
struct hook *before = list;
|
|
while (before->next && before->next->priority < item->priority)
|
|
before = before->next;
|
|
|
|
// And link ourselves in between it and its successor
|
|
if ((item->next = before->next))
|
|
item->next->prev = item;
|
|
before->next = item;
|
|
item->prev = before;
|
|
return list;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct input_hook
|
|
{
|
|
struct hook super; ///< Common hook fields
|
|
|
|
/// Takes over the ownership of "input", returns either NULL if input
|
|
/// was thrown away, or a possibly modified version of it
|
|
char *(*filter) (struct input_hook *self,
|
|
struct buffer *buffer, char *input);
|
|
};
|
|
|
|
struct irc_hook
|
|
{
|
|
struct hook super; ///< Common hook fields
|
|
|
|
/// Takes over the ownership of "message", returns either NULL if message
|
|
/// was thrown away, or a possibly modified version of it
|
|
char *(*filter) (struct irc_hook *self,
|
|
struct server *server, char *message);
|
|
};
|
|
|
|
struct prompt_hook
|
|
{
|
|
struct hook super; ///< Common hook fields
|
|
|
|
/// Returns what the prompt should look like right now based on other state
|
|
char *(*make) (struct prompt_hook *self);
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct completion_word
|
|
{
|
|
size_t start; ///< Offset to start of word
|
|
size_t end; ///< Offset to end of word
|
|
};
|
|
|
|
struct completion
|
|
{
|
|
char *line; ///< The line which is being completed
|
|
|
|
struct completion_word *words; ///< Word locations
|
|
size_t words_len; ///< Number of words
|
|
size_t words_alloc; ///< Number of words allocated
|
|
|
|
size_t location; ///< Which word is being completed
|
|
};
|
|
|
|
struct completion_hook
|
|
{
|
|
struct hook super; ///< Common hook fields
|
|
|
|
/// Tries to add possible completions of "word" to "output"
|
|
void (*complete) (struct completion_hook *self,
|
|
struct completion *data, const char *word, struct strv *output);
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct app_context
|
|
{
|
|
char *attrs_defaults[ATTR_COUNT]; ///< Default terminal attributes
|
|
|
|
// Configuration:
|
|
|
|
struct config config; ///< Program configuration
|
|
char *attrs[ATTR_COUNT]; ///< Terminal attributes
|
|
bool isolate_buffers; ///< Isolate global/server buffers
|
|
bool beep_on_highlight; ///< Beep on highlight
|
|
bool logging; ///< Logging to file enabled
|
|
bool show_all_prefixes; ///< Show all prefixes before nicks
|
|
bool word_wrapping; ///< Enable simple word wrapping
|
|
|
|
struct str_map servers; ///< Our servers
|
|
|
|
// Events:
|
|
|
|
struct poller_fd tty_event; ///< Terminal input event
|
|
struct poller_fd signal_event; ///< Signal FD event
|
|
|
|
struct poller_timer flush_timer; ///< Flush all open files (e.g. logs)
|
|
struct poller_timer date_chg_tmr; ///< Print a date change
|
|
struct poller_timer autoaway_tmr; ///< Autoaway timer
|
|
|
|
struct poller poller; ///< Manages polled descriptors
|
|
bool quitting; ///< User requested quitting
|
|
bool polling; ///< The event loop is running
|
|
|
|
// Buffers:
|
|
|
|
struct buffer *buffers; ///< All our buffers in order
|
|
struct buffer *buffers_tail; ///< The tail of our buffers
|
|
|
|
struct buffer *global_buffer; ///< The global buffer
|
|
struct buffer *current_buffer; ///< The current buffer
|
|
struct buffer *last_buffer; ///< Last used buffer
|
|
|
|
struct str_map buffers_by_name; ///< Buffers by name
|
|
|
|
unsigned backlog_limit; ///< Limit for buffer lines
|
|
time_t last_displayed_msg_time; ///< Time of last displayed message
|
|
|
|
// Terminal:
|
|
|
|
iconv_t term_to_utf8; ///< Terminal encoding to UTF-8
|
|
iconv_t term_from_utf8; ///< UTF-8 to terminal encoding
|
|
|
|
struct input *input; ///< User interface
|
|
|
|
struct poller_idle prompt_event; ///< Deferred prompt refresh
|
|
struct poller_idle input_event; ///< Pending input event
|
|
struct strv pending_input; ///< Pending input lines
|
|
|
|
int *nick_palette; ///< A 256-colour palette for nicknames
|
|
size_t nick_palette_len; ///< Number of entries in nick_palette
|
|
|
|
bool awaiting_mirc_escape; ///< Awaiting a mIRC attribute escape
|
|
bool in_bracketed_paste; ///< User is pasting some content
|
|
struct str input_buffer; ///< Buffered pasted content
|
|
|
|
bool running_backlog_helper; ///< Running a backlog helper
|
|
bool running_editor; ///< Running editor for the input
|
|
char *editor_filename; ///< The file being edited by user
|
|
int terminal_suspended; ///< Terminal suspension level
|
|
|
|
struct plugin *plugins; ///< Loaded plugins
|
|
struct hook *input_hooks; ///< Input hooks
|
|
struct hook *irc_hooks; ///< IRC hooks
|
|
struct hook *prompt_hooks; ///< Prompt hooks
|
|
struct hook *completion_hooks; ///< Autocomplete hooks
|
|
}
|
|
*g_ctx;
|
|
|
|
static struct ispect_field g_ctx_ispect[] =
|
|
{
|
|
ISPECT_MAP_REF( app_context, servers, false, server )
|
|
ISPECT_REF( app_context, buffers, true, buffer )
|
|
ISPECT_REF( app_context, global_buffer, false, buffer )
|
|
ISPECT_REF( app_context, current_buffer, false, buffer )
|
|
{}
|
|
};
|
|
|
|
static int *
|
|
filter_color_cube_for_acceptable_nick_colors (size_t *len)
|
|
{
|
|
// This is a pure function and we don't use threads, static storage is fine
|
|
static int table[6 * 6 * 6];
|
|
size_t len_counter = 0;
|
|
for (int x = 0; x < 6 * 6 * 6; x++)
|
|
{
|
|
// FIXME this isn't exactly right, the values aren't linear
|
|
int r = x / 36;
|
|
int g = (x / 6) % 6;
|
|
int b = (x % 6);
|
|
|
|
// Use the luma value of colours within the cube to filter colours that
|
|
// look okay-ish on terminals with both black and white backgrounds
|
|
double luma = 0.2126 * r / 6. + 0.7152 * g / 6. + 0.0722 * b / 6.;
|
|
if (luma >= .3 && luma <= .5)
|
|
table[len_counter++] = 16 + x;
|
|
}
|
|
*len = len_counter;
|
|
return table;
|
|
}
|
|
|
|
static bool
|
|
app_iconv_open (iconv_t *target, const char *to, const char *from)
|
|
{
|
|
if (ICONV_ACCEPTS_TRANSLIT)
|
|
{
|
|
char *to_real = xstrdup_printf ("%s//TRANSLIT", to);
|
|
*target = iconv_open (to_real, from);
|
|
free (to_real);
|
|
}
|
|
else
|
|
*target = iconv_open (to, from);
|
|
return *target != (iconv_t) -1;
|
|
}
|
|
|
|
static void
|
|
app_context_init (struct app_context *self)
|
|
{
|
|
memset (self, 0, sizeof *self);
|
|
|
|
self->config = config_make ();
|
|
poller_init (&self->poller);
|
|
|
|
self->servers = str_map_make ((str_map_free_fn) server_unref);
|
|
self->servers.key_xfrm = tolower_ascii_strxfrm;
|
|
|
|
self->buffers_by_name = str_map_make (NULL);
|
|
self->buffers_by_name.key_xfrm = tolower_ascii_strxfrm;
|
|
|
|
// So that we don't lose the logo shortly after startup
|
|
self->backlog_limit = 1000;
|
|
self->last_displayed_msg_time = time (NULL);
|
|
|
|
char *native = nl_langinfo (CODESET);
|
|
if (!app_iconv_open (&self->term_from_utf8, native, "UTF-8")
|
|
|| !app_iconv_open (&self->term_to_utf8, "UTF-8", native))
|
|
exit_fatal ("creating the UTF-8 conversion object failed: %s",
|
|
strerror (errno));
|
|
|
|
self->input = input_new ();
|
|
self->input->user_data = self;
|
|
self->pending_input = strv_make ();
|
|
self->input_buffer = str_make ();
|
|
|
|
self->nick_palette =
|
|
filter_color_cube_for_acceptable_nick_colors (&self->nick_palette_len);
|
|
}
|
|
|
|
static void
|
|
app_context_free (struct app_context *self)
|
|
{
|
|
// Plugins can try to use of the other fields when destroyed
|
|
LIST_FOR_EACH (struct plugin, iter, self->plugins)
|
|
plugin_destroy (iter);
|
|
|
|
config_free (&self->config);
|
|
for (size_t i = 0; i < ATTR_COUNT; i++)
|
|
{
|
|
free (self->attrs_defaults[i]);
|
|
free (self->attrs[i]);
|
|
}
|
|
|
|
LIST_FOR_EACH (struct buffer, iter, self->buffers)
|
|
{
|
|
#ifdef HAVE_READLINE
|
|
// We can use the user interface here; see buffer_destroy()
|
|
CALL_ (self->input, buffer_destroy, iter->input_data);
|
|
iter->input_data = NULL;
|
|
#endif // HAVE_READLINE
|
|
buffer_unref (iter);
|
|
}
|
|
str_map_free (&self->buffers_by_name);
|
|
|
|
str_map_free (&self->servers);
|
|
poller_free (&self->poller);
|
|
|
|
iconv_close (self->term_from_utf8);
|
|
iconv_close (self->term_to_utf8);
|
|
|
|
CALL (self->input, destroy);
|
|
strv_free (&self->pending_input);
|
|
str_free (&self->input_buffer);
|
|
|
|
free (self->editor_filename);
|
|
}
|
|
|
|
static void
|
|
refresh_prompt (struct app_context *ctx)
|
|
{
|
|
// XXX: the need for this conditional could probably be resolved
|
|
// by some clever reordering
|
|
if (ctx->prompt_event.poller)
|
|
poller_idle_set (&ctx->prompt_event);
|
|
}
|
|
|
|
// --- Configuration -----------------------------------------------------------
|
|
|
|
static void
|
|
on_config_debug_mode_change (struct config_item *item)
|
|
{
|
|
g_debug_mode = item->value.boolean;
|
|
}
|
|
|
|
static void
|
|
on_config_show_all_prefixes_change (struct config_item *item)
|
|
{
|
|
struct app_context *ctx = item->user_data;
|
|
ctx->show_all_prefixes = item->value.boolean;
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void on_config_backlog_limit_change (struct config_item *item);
|
|
static void on_config_attribute_change (struct config_item *item);
|
|
static void on_config_logging_change (struct config_item *item);
|
|
|
|
#define TRIVIAL_BOOLEAN_ON_CHANGE(name) \
|
|
static void \
|
|
on_config_ ## name ## _change (struct config_item *item) \
|
|
{ \
|
|
struct app_context *ctx = item->user_data; \
|
|
ctx->name = item->value.boolean; \
|
|
}
|
|
|
|
TRIVIAL_BOOLEAN_ON_CHANGE (isolate_buffers)
|
|
TRIVIAL_BOOLEAN_ON_CHANGE (beep_on_highlight)
|
|
TRIVIAL_BOOLEAN_ON_CHANGE (word_wrapping)
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
config_validate_nonjunk_string
|
|
(const struct config_item *item, struct error **e)
|
|
{
|
|
if (item->type == CONFIG_ITEM_NULL)
|
|
return true;
|
|
|
|
hard_assert (config_item_type_is_string (item->type));
|
|
for (size_t i = 0; i < item->value.string.len; i++)
|
|
{
|
|
// Not even a tabulator
|
|
unsigned char c = item->value.string.str[i];
|
|
if (iscntrl_ascii (c))
|
|
{
|
|
error_set (e, "control characters are not allowed");
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
config_validate_addresses
|
|
(const struct config_item *item, struct error **e)
|
|
{
|
|
if (item->type == CONFIG_ITEM_NULL)
|
|
return true;
|
|
if (!config_validate_nonjunk_string (item, e))
|
|
return false;
|
|
|
|
// Comma-separated list of "host[:port]" pairs
|
|
regex_t re;
|
|
int err = regcomp (&re, "^([^/:,]+(:[^/:,]+)?)?"
|
|
"(,([^/:,]+(:[^/:,]+)?)?)*$", REG_EXTENDED | REG_NOSUB);
|
|
hard_assert (!err);
|
|
|
|
bool result = !regexec (&re, item->value.string.str, 0, NULL, 0);
|
|
if (!result)
|
|
error_set (e, "invalid address list string");
|
|
|
|
regfree (&re);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
config_validate_nonnegative
|
|
(const struct config_item *item, struct error **e)
|
|
{
|
|
if (item->type == CONFIG_ITEM_NULL)
|
|
return true;
|
|
|
|
hard_assert (item->type == CONFIG_ITEM_INTEGER);
|
|
if (item->value.integer >= 0)
|
|
return true;
|
|
|
|
error_set (e, "must be non-negative");
|
|
return false;
|
|
}
|
|
|
|
static struct config_schema g_config_server[] =
|
|
{
|
|
{ .name = "nicks",
|
|
.comment = "IRC nickname",
|
|
.type = CONFIG_ITEM_STRING_ARRAY,
|
|
.validate = config_validate_nonjunk_string },
|
|
{ .name = "username",
|
|
.comment = "IRC user name",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.validate = config_validate_nonjunk_string },
|
|
{ .name = "realname",
|
|
.comment = "IRC real name/e-mail",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.validate = config_validate_nonjunk_string },
|
|
|
|
{ .name = "addresses",
|
|
.comment = "Addresses of the IRC network (e.g. \"irc.net:6667\")",
|
|
.type = CONFIG_ITEM_STRING_ARRAY,
|
|
.validate = config_validate_addresses },
|
|
{ .name = "password",
|
|
.comment = "Password to connect to the server, if any",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.validate = config_validate_nonjunk_string },
|
|
// XXX: if we add support for new capabilities, the value stays unchanged
|
|
{ .name = "capabilities",
|
|
.comment = "Capabilities to use if supported by server",
|
|
.type = CONFIG_ITEM_STRING_ARRAY,
|
|
.validate = config_validate_nonjunk_string,
|
|
.default_ = "\"multi-prefix,invite-notify,server-time,echo-message\"" },
|
|
|
|
{ .name = "tls",
|
|
.comment = "Whether to use TLS",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off" },
|
|
{ .name = "tls_cert",
|
|
.comment = "Client TLS certificate (PEM)",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{ .name = "tls_verify",
|
|
.comment = "Whether to verify certificates",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on" },
|
|
{ .name = "tls_ca_file",
|
|
.comment = "OpenSSL CA bundle file",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{ .name = "tls_ca_path",
|
|
.comment = "OpenSSL CA bundle path",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{ .name = "tls_ciphers",
|
|
.comment = "OpenSSL cipher preference list",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.default_ = "\"DEFAULT:!MEDIUM:!LOW\"" },
|
|
|
|
{ .name = "autoconnect",
|
|
.comment = "Connect automatically on startup",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on" },
|
|
{ .name = "autojoin",
|
|
.comment = "Channels to join on start (e.g. \"#abc,#def key,#ghi\")",
|
|
.type = CONFIG_ITEM_STRING_ARRAY,
|
|
.validate = config_validate_nonjunk_string },
|
|
{ .name = "command",
|
|
.comment = "Command to execute after a successful connect",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{ .name = "command_delay",
|
|
.comment = "Delay between executing \"command\" and joining channels",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "0" },
|
|
{ .name = "reconnect",
|
|
.comment = "Whether to reconnect on error",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on" },
|
|
{ .name = "reconnect_delay",
|
|
.comment = "Time between reconnecting",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "5" },
|
|
|
|
{ .name = "socks_host",
|
|
.comment = "Address of a SOCKS 4a/5 proxy",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.validate = config_validate_nonjunk_string },
|
|
{ .name = "socks_port",
|
|
.comment = "SOCKS port number",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "1080" },
|
|
{ .name = "socks_username",
|
|
.comment = "SOCKS auth. username",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{ .name = "socks_password",
|
|
.comment = "SOCKS auth. password",
|
|
.type = CONFIG_ITEM_STRING },
|
|
{}
|
|
};
|
|
|
|
static struct config_schema g_config_behaviour[] =
|
|
{
|
|
{ .name = "isolate_buffers",
|
|
.comment = "Don't leak messages from the server and global buffers",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off",
|
|
.on_change = on_config_isolate_buffers_change },
|
|
{ .name = "beep_on_highlight",
|
|
.comment = "Beep when highlighted or on a new invisible PM",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on",
|
|
.on_change = on_config_beep_on_highlight_change },
|
|
{ .name = "show_all_prefixes",
|
|
.comment = "Show all prefixes in front of nicknames",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off",
|
|
.on_change = on_config_show_all_prefixes_change },
|
|
{ .name = "word_wrapping",
|
|
.comment = "Enable simple word wrapping in buffers",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on",
|
|
.on_change = on_config_word_wrapping_change },
|
|
{ .name = "date_change_line",
|
|
.comment = "Input to strftime(3) for the date change line",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.default_ = "\"%F\"" },
|
|
{ .name = "read_marker_char",
|
|
.comment = "The character to use for the read marker line",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.default_ = "\"-\"",
|
|
.validate = config_validate_nonjunk_string },
|
|
{ .name = "logging",
|
|
.comment = "Log buffer contents to file",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off",
|
|
.on_change = on_config_logging_change },
|
|
{ .name = "save_on_quit",
|
|
.comment = "Save configuration before quitting",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "on" },
|
|
{ .name = "debug_mode",
|
|
.comment = "Produce some debugging output",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off",
|
|
.on_change = on_config_debug_mode_change },
|
|
|
|
{ .name = "backlog_limit",
|
|
.comment = "Maximum number of lines stored in the backlog",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "1000",
|
|
.on_change = on_config_backlog_limit_change },
|
|
{ .name = "backlog_helper",
|
|
.comment = "Shell command to display a buffer's history",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.default_ = "\"LESSSECURE=1 less -M -R +G\"" },
|
|
{ .name = "backlog_helper_strip_formatting",
|
|
.comment = "Strip formatting from backlog helper input",
|
|
.type = CONFIG_ITEM_BOOLEAN,
|
|
.default_ = "off" },
|
|
|
|
{ .name = "reconnect_delay_growing",
|
|
.comment = "Growing factor for reconnect delay",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "2" },
|
|
{ .name = "reconnect_delay_max",
|
|
.comment = "Maximum reconnect delay in seconds",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "600" },
|
|
|
|
{ .name = "autoaway_message",
|
|
.comment = "Automated away message",
|
|
.type = CONFIG_ITEM_STRING,
|
|
.default_ = "\"I'm not here right now\"" },
|
|
{ .name = "autoaway_delay",
|
|
.comment = "Delay from the last keypress in seconds",
|
|
.type = CONFIG_ITEM_INTEGER,
|
|
.validate = config_validate_nonnegative,
|
|
.default_ = "1800" },
|
|
|
|
{ .name = "plugin_autoload",
|
|
.comment = "Plugins to automatically load on start",
|
|
.type = CONFIG_ITEM_STRING_ARRAY,
|
|
.validate = config_validate_nonjunk_string },
|
|
{}
|
|
};
|
|
|
|
static struct config_schema g_config_attributes[] =
|
|
{
|
|
#define XX(x, y, z) { .name = #y, .comment = #z, .type = CONFIG_ITEM_STRING, \
|
|
.on_change = on_config_attribute_change },
|
|
ATTR_TABLE (XX)
|
|
#undef XX
|
|
{}
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
load_config_behaviour (struct config_item *subtree, void *user_data)
|
|
{
|
|
config_schema_apply_to_object (g_config_behaviour, subtree, user_data);
|
|
}
|
|
|
|
static void
|
|
load_config_attributes (struct config_item *subtree, void *user_data)
|
|
{
|
|
config_schema_apply_to_object (g_config_attributes, subtree, user_data);
|
|
}
|
|
|
|
static void
|
|
register_config_modules (struct app_context *ctx)
|
|
{
|
|
struct config *config = &ctx->config;
|
|
// The servers are loaded later when we can create buffers for them
|
|
config_register_module (config, "servers", NULL, NULL);
|
|
config_register_module (config, "aliases", NULL, NULL);
|
|
config_register_module (config, "plugins", NULL, NULL);
|
|
config_register_module (config, "behaviour", load_config_behaviour, ctx);
|
|
config_register_module (config, "attributes", load_config_attributes, ctx);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static const char *
|
|
get_config_string (struct config_item *root, const char *key)
|
|
{
|
|
struct config_item *item = config_item_get (root, key, NULL);
|
|
hard_assert (item);
|
|
if (item->type == CONFIG_ITEM_NULL)
|
|
return NULL;
|
|
hard_assert (config_item_type_is_string (item->type));
|
|
return item->value.string.str;
|
|
}
|
|
|
|
static bool
|
|
set_config_string
|
|
(struct config_item *root, const char *key, const char *value)
|
|
{
|
|
struct config_item *item = config_item_get (root, key, NULL);
|
|
hard_assert (item);
|
|
|
|
struct config_item *new_ = config_item_string_from_cstr (value);
|
|
struct error *e = NULL;
|
|
if (config_item_set_from (item, new_, &e))
|
|
return true;
|
|
|
|
config_item_destroy (new_);
|
|
print_error ("couldn't set `%s' in configuration: %s", key, e->message);
|
|
error_free (e);
|
|
return false;
|
|
}
|
|
|
|
static int64_t
|
|
get_config_integer (struct config_item *root, const char *key)
|
|
{
|
|
struct config_item *item = config_item_get (root, key, NULL);
|
|
hard_assert (item && item->type == CONFIG_ITEM_INTEGER);
|
|
return item->value.integer;
|
|
}
|
|
|
|
static bool
|
|
get_config_boolean (struct config_item *root, const char *key)
|
|
{
|
|
struct config_item *item = config_item_get (root, key, NULL);
|
|
hard_assert (item && item->type == CONFIG_ITEM_BOOLEAN);
|
|
return item->value.boolean;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static struct str_map *
|
|
get_servers_config (struct app_context *ctx)
|
|
{
|
|
return &config_item_get (ctx->config.root, "servers", NULL)->value.object;
|
|
}
|
|
|
|
static struct str_map *
|
|
get_aliases_config (struct app_context *ctx)
|
|
{
|
|
return &config_item_get (ctx->config.root, "aliases", NULL)->value.object;
|
|
}
|
|
|
|
static struct str_map *
|
|
get_plugins_config (struct app_context *ctx)
|
|
{
|
|
return &config_item_get (ctx->config.root, "plugins", NULL)->value.object;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
serialize_configuration (struct config_item *root, struct str *output)
|
|
{
|
|
str_append (output,
|
|
"# " PROGRAM_NAME " " PROGRAM_VERSION " configuration file\n"
|
|
"#\n"
|
|
"# Relative paths are searched for in ${XDG_CONFIG_HOME:-~/.config}\n"
|
|
"# /" PROGRAM_NAME " as well as in $XDG_CONFIG_DIRS/" PROGRAM_NAME "\n"
|
|
"#\n"
|
|
"# Everything is in UTF-8. Any custom comments will be overwritten.\n"
|
|
"\n");
|
|
|
|
config_item_write (root, true, output);
|
|
}
|
|
|
|
// --- Terminal output ---------------------------------------------------------
|
|
|
|
/// Default colour pair
|
|
#define COLOR_DEFAULT -1
|
|
|
|
/// Bright versions of the basic colour set
|
|
#define COLOR_BRIGHT(x) (COLOR_ ## x + 8)
|
|
|
|
/// Builds a colour pair for 256-colour terminals with a 16-colour backup value
|
|
#define COLOR_256(name, c256) \
|
|
(((COLOR_ ## name) & 0xFFFF) | (((c256) & 0xFFFF) << 16))
|
|
|
|
typedef int (*terminal_printer_fn) (int);
|
|
|
|
static int
|
|
putchar_stderr (int c)
|
|
{
|
|
return fputc (c, stderr);
|
|
}
|
|
|
|
static terminal_printer_fn
|
|
get_attribute_printer (FILE *stream)
|
|
{
|
|
if (stream == stdout && g_terminal.stdout_is_tty)
|
|
return putchar;
|
|
if (stream == stderr && g_terminal.stderr_is_tty)
|
|
return putchar_stderr;
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
vprint_attributed (struct app_context *ctx,
|
|
FILE *stream, intptr_t attribute, const char *fmt, va_list ap)
|
|
{
|
|
terminal_printer_fn printer = get_attribute_printer (stream);
|
|
if (!attribute)
|
|
printer = NULL;
|
|
|
|
if (printer)
|
|
tputs (ctx->attrs[attribute], 1, printer);
|
|
|
|
vfprintf (stream, fmt, ap);
|
|
|
|
if (printer)
|
|
tputs (ctx->attrs[ATTR_RESET], 1, printer);
|
|
}
|
|
|
|
static void
|
|
print_attributed (struct app_context *ctx,
|
|
FILE *stream, intptr_t attribute, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, fmt);
|
|
vprint_attributed (ctx, stream, attribute, fmt, ap);
|
|
va_end (ap);
|
|
}
|
|
|
|
static void
|
|
log_message_attributed (void *user_data, const char *quote, const char *fmt,
|
|
va_list ap)
|
|
{
|
|
FILE *stream = stderr;
|
|
struct app_context *ctx = g_ctx;
|
|
|
|
CALL (ctx->input, hide);
|
|
|
|
print_attributed (ctx, stream, (intptr_t) user_data, "%s", quote);
|
|
vprint_attributed (ctx, stream, (intptr_t) user_data, fmt, ap);
|
|
fputs ("\n", stream);
|
|
|
|
CALL (ctx->input, show);
|
|
}
|
|
|
|
static ssize_t
|
|
attr_by_name (const char *name)
|
|
{
|
|
static const char *table[ATTR_COUNT] =
|
|
{
|
|
#define XX(x, y, z) [ATTR_ ## x] = #y,
|
|
ATTR_TABLE (XX)
|
|
#undef XX
|
|
};
|
|
|
|
for (size_t i = 0; i < N_ELEMENTS (table); i++)
|
|
if (!strcmp (name, table[i]))
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
on_config_attribute_change (struct config_item *item)
|
|
{
|
|
struct app_context *ctx = item->user_data;
|
|
ssize_t id = attr_by_name (item->schema->name);
|
|
if (id != -1)
|
|
{
|
|
cstr_set (&ctx->attrs[id], xstrdup (item->type == CONFIG_ITEM_NULL
|
|
? ctx->attrs_defaults[id]
|
|
: item->value.string.str));
|
|
}
|
|
}
|
|
|
|
static void
|
|
init_colors (struct app_context *ctx)
|
|
{
|
|
bool have_ti = init_terminal ();
|
|
char **defaults = ctx->attrs_defaults;
|
|
|
|
#define INIT_ATTR(id, ti) defaults[ATTR_ ## id] = xstrdup (have_ti ? (ti) : "")
|
|
|
|
INIT_ATTR (PROMPT, enter_bold_mode);
|
|
INIT_ATTR (RESET, exit_attribute_mode);
|
|
INIT_ATTR (DATE_CHANGE, enter_bold_mode);
|
|
INIT_ATTR (READ_MARKER, g_terminal.color_set_fg[COLOR_MAGENTA]);
|
|
INIT_ATTR (WARNING, g_terminal.color_set_fg[COLOR_YELLOW]);
|
|
INIT_ATTR (ERROR, g_terminal.color_set_fg[COLOR_RED]);
|
|
|
|
INIT_ATTR (EXTERNAL, g_terminal.color_set_fg[COLOR_WHITE]);
|
|
INIT_ATTR (TIMESTAMP, g_terminal.color_set_fg[COLOR_WHITE]);
|
|
INIT_ATTR (ACTION, g_terminal.color_set_fg[COLOR_RED]);
|
|
INIT_ATTR (USERHOST, g_terminal.color_set_fg[COLOR_CYAN]);
|
|
INIT_ATTR (JOIN, g_terminal.color_set_fg[COLOR_GREEN]);
|
|
INIT_ATTR (PART, g_terminal.color_set_fg[COLOR_RED]);
|
|
|
|
char *highlight = have_ti ? xstrdup_printf ("%s%s%s",
|
|
g_terminal.color_set_fg[COLOR_YELLOW],
|
|
g_terminal.color_set_bg[COLOR_MAGENTA],
|
|
enter_bold_mode) : NULL;
|
|
INIT_ATTR (HIGHLIGHT, highlight);
|
|
free (highlight);
|
|
|
|
#undef INIT_ATTR
|
|
|
|
// This prevents formatters from obtaining an attribute printer function
|
|
if (!have_ti)
|
|
{
|
|
g_terminal.stdout_is_tty = false;
|
|
g_terminal.stderr_is_tty = false;
|
|
}
|
|
|
|
g_log_message_real = log_message_attributed;
|
|
|
|
// Apply the default values so that we start with any formatting at all
|
|
config_schema_call_changed
|
|
(config_item_get (ctx->config.root, "attributes", NULL));
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// A little tool that tries to make the most of the terminal's capabilities
|
|
// to set up text attributes. It mostly targets just terminal emulators as that
|
|
// is what people are using these days. At least no stupid ncurses limits us
|
|
// with colour pairs.
|
|
|
|
enum
|
|
{
|
|
TEXT_BOLD = 1 << 0,
|
|
TEXT_ITALIC = 1 << 1,
|
|
TEXT_UNDERLINE = 1 << 2,
|
|
TEXT_INVERSE = 1 << 3,
|
|
TEXT_BLINK = 1 << 4,
|
|
TEXT_CROSSED_OUT = 1 << 5
|
|
};
|
|
|
|
struct attr_printer
|
|
{
|
|
char **attrs; ///< Named attributes
|
|
FILE *stream; ///< Output stream
|
|
bool dirty; ///< Attributes are set
|
|
};
|
|
|
|
#define ATTR_PRINTER_INIT(ctx, stream) { ctx->attrs, stream, true }
|
|
|
|
static void
|
|
attr_printer_filtered_puts (FILE *stream, const char *attr)
|
|
{
|
|
for (; *attr; attr++)
|
|
{
|
|
// sgr/set_attributes and sgr0/exit_attribute_mode like to enable or
|
|
// disable the ACS with SO/SI (e.g. for TERM=screen), however `less -R`
|
|
// does not skip over these characters and it screws up word wrapping
|
|
if (*attr == 14 /* SO */ || *attr == 15 /* SI */)
|
|
continue;
|
|
|
|
// Trivially skip delay sequences intended to be processed by tputs()
|
|
const char *end = NULL;
|
|
if (attr[0] == '$' && attr[1] == '<' && (end = strchr (attr, '>')))
|
|
attr = end;
|
|
else
|
|
fputc (*attr, stream);
|
|
}
|
|
}
|
|
|
|
static void
|
|
attr_printer_tputs (struct attr_printer *self, const char *attr)
|
|
{
|
|
terminal_printer_fn printer = get_attribute_printer (self->stream);
|
|
if (printer)
|
|
tputs (attr, 1, printer);
|
|
else
|
|
// We shouldn't really do this but we need it to output formatting
|
|
// to the backlog helper--it should be SGR-only
|
|
attr_printer_filtered_puts (self->stream, attr);
|
|
}
|
|
|
|
static void
|
|
attr_printer_reset (struct attr_printer *self)
|
|
{
|
|
if (self->dirty)
|
|
attr_printer_tputs (self, self->attrs[ATTR_RESET]);
|
|
|
|
self->dirty = false;
|
|
}
|
|
|
|
static void
|
|
attr_printer_apply_named (struct attr_printer *self, int attribute)
|
|
{
|
|
attr_printer_reset (self);
|
|
if (attribute != ATTR_RESET)
|
|
{
|
|
attr_printer_tputs (self, self->attrs[attribute]);
|
|
self->dirty = true;
|
|
}
|
|
}
|
|
|
|
// NOTE: commonly terminals have:
|
|
// 8 colours (worst, bright fg often with BOLD, bg sometimes with BLINK)
|
|
// 16 colours (okayish, we have the full basic range guaranteed)
|
|
// 88 colours (the same plus a 4^3 RGB cube and a few shades of grey)
|
|
// 256 colours (best, like above but with a larger cube and more grey)
|
|
|
|
/// Interpolate from the 256-colour palette to the 88-colour one
|
|
static int
|
|
attr_printer_256_to_88 (int color)
|
|
{
|
|
// These colours are the same everywhere
|
|
if (color < 16)
|
|
return color;
|
|
|
|
// 24 -> 8 extra shades of grey
|
|
if (color >= 232)
|
|
return 80 + (color - 232) / 3;
|
|
|
|
// 6 * 6 * 6 cube -> 4 * 4 * 4 cube
|
|
int x[6] = { 0, 1, 1, 2, 2, 3 };
|
|
int index = color - 16;
|
|
return 16 +
|
|
( x[ index / 36 ] << 8
|
|
| x[(index / 6) % 6 ] << 4
|
|
| x[(index % 6) ] );
|
|
}
|
|
|
|
static int
|
|
attr_printer_decode_color (int color, bool *is_bright)
|
|
{
|
|
int16_t c16 = color; hard_assert (c16 < 16);
|
|
int16_t c256 = color >> 16; hard_assert (c256 < 256);
|
|
|
|
*is_bright = false;
|
|
switch (max_colors)
|
|
{
|
|
case 8:
|
|
if (c16 >= 8)
|
|
{
|
|
c16 -= 8;
|
|
*is_bright = true;
|
|
}
|
|
// Fall-through
|
|
case 16:
|
|
return c16;
|
|
|
|
case 88:
|
|
return c256 <= 0 ? c16 : attr_printer_256_to_88 (c256);
|
|
case 256:
|
|
return c256 <= 0 ? c16 : c256;
|
|
|
|
default:
|
|
// Unsupported palette
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
attr_printer_apply (struct attr_printer *self,
|
|
int text_attrs, int wanted_fg, int wanted_bg)
|
|
{
|
|
bool fg_is_bright;
|
|
int fg = attr_printer_decode_color (wanted_fg, &fg_is_bright);
|
|
bool bg_is_bright;
|
|
int bg = attr_printer_decode_color (wanted_bg, &bg_is_bright);
|
|
|
|
bool have_inverse = !!(text_attrs & TEXT_INVERSE);
|
|
if (have_inverse)
|
|
{
|
|
bool tmp = fg_is_bright;
|
|
fg_is_bright = bg_is_bright;
|
|
bg_is_bright = tmp;
|
|
}
|
|
|
|
// In 8 colour mode, some terminals don't support bright backgrounds.
|
|
// However, we can make use of the fact that the brightness change caused
|
|
// by the bold attribute is retained when inverting the colours.
|
|
// This has the downside of making the text bold when it's not supposed
|
|
// to be, and we still can't make both colours bright, so it's more of
|
|
// an interesting hack rather than anything else.
|
|
if (!fg_is_bright && bg_is_bright && have_inverse)
|
|
text_attrs |= TEXT_BOLD;
|
|
else if (!fg_is_bright && bg_is_bright
|
|
&& !have_inverse && fg >= 0 && bg >= 0)
|
|
{
|
|
// As long as none of the colours is the default, we can swap them
|
|
int tmp = fg; fg = bg; bg = tmp;
|
|
text_attrs |= TEXT_BOLD | TEXT_INVERSE;
|
|
}
|
|
else
|
|
{
|
|
// This often works, however...
|
|
if (fg_is_bright) text_attrs |= TEXT_BOLD;
|
|
// this turns out to be annoying if implemented "correctly"
|
|
if (bg_is_bright) text_attrs |= TEXT_BLINK;
|
|
}
|
|
|
|
attr_printer_reset (self);
|
|
|
|
if (text_attrs)
|
|
attr_printer_tputs (self, tparm (set_attributes,
|
|
0, // standout
|
|
text_attrs & TEXT_UNDERLINE,
|
|
text_attrs & TEXT_INVERSE,
|
|
text_attrs & TEXT_BLINK,
|
|
0, // dim
|
|
text_attrs & TEXT_BOLD,
|
|
0, // blank
|
|
0, // protect
|
|
0)); // acs
|
|
if ((text_attrs & TEXT_ITALIC) && enter_italics_mode)
|
|
attr_printer_tputs (self, enter_italics_mode);
|
|
|
|
char *smxx = NULL;
|
|
if ((text_attrs & TEXT_CROSSED_OUT)
|
|
&& (smxx = tigetstr ("smxx")) && smxx != (char *) -1)
|
|
attr_printer_tputs (self, smxx);
|
|
|
|
if (fg >= 0)
|
|
attr_printer_tputs (self, g_terminal.color_set_fg[fg]);
|
|
if (bg >= 0)
|
|
attr_printer_tputs (self, g_terminal.color_set_bg[bg]);
|
|
|
|
self->dirty = true;
|
|
}
|
|
|
|
// --- Helpers -----------------------------------------------------------------
|
|
|
|
static int
|
|
irc_server_strcmp (struct server *s, const char *a, const char *b)
|
|
{
|
|
int x;
|
|
while (*a || *b)
|
|
if ((x = s->irc_tolower (*a++) - s->irc_tolower (*b++)))
|
|
return x;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
irc_server_strncmp (struct server *s, const char *a, const char *b, size_t n)
|
|
{
|
|
int x;
|
|
while (n-- && (*a || *b))
|
|
if ((x = s->irc_tolower (*a++) - s->irc_tolower (*b++)))
|
|
return x;
|
|
return 0;
|
|
}
|
|
|
|
static char *
|
|
irc_cut_nickname (const char *prefix)
|
|
{
|
|
return cstr_cut_until (prefix, "!@");
|
|
}
|
|
|
|
static const char *
|
|
irc_find_userhost (const char *prefix)
|
|
{
|
|
const char *p = strchr (prefix, '!');
|
|
return p ? p + 1 : NULL;
|
|
}
|
|
|
|
static bool
|
|
irc_is_this_us (struct server *s, const char *prefix)
|
|
{
|
|
// This shouldn't be called before successfully registering.
|
|
// Better safe than sorry, though.
|
|
if (!s->irc_user)
|
|
return false;
|
|
|
|
char *nick = irc_cut_nickname (prefix);
|
|
bool result = !irc_server_strcmp (s, nick, s->irc_user->nickname);
|
|
free (nick);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
irc_is_channel (struct server *s, const char *ident)
|
|
{
|
|
return *ident
|
|
&& (!!strchr (s->irc_chantypes, *ident) ||
|
|
!!strchr (s->irc_idchan_prefixes, *ident));
|
|
}
|
|
|
|
// Message targets can be prefixed by a character filtering their targets
|
|
static const char *
|
|
irc_skip_statusmsg (struct server *s, const char *target)
|
|
{
|
|
return target + (*target && strchr (s->irc_statusmsg, *target));
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// As of 2015, everything should be in UTF-8. And if it's not, we'll decode it
|
|
// as ISO Latin 1. This function should not be called on the whole message.
|
|
static char *
|
|
irc_to_utf8 (const char *text)
|
|
{
|
|
if (!text)
|
|
return NULL;
|
|
size_t len = strlen (text) + 1;
|
|
if (utf8_validate (text, len))
|
|
return xstrdup (text);
|
|
|
|
// Windows 1252 redefines several silly C1 control characters as glyphs
|
|
static const char c1[32][4] =
|
|
{
|
|
"\xe2\x82\xac", "\xc2\x81", "\xe2\x80\x9a", "\xc6\x92",
|
|
"\xe2\x80\x9e", "\xe2\x80\xa6", "\xe2\x80\xa0", "\xe2\x80\xa1",
|
|
"\xcb\x86", "\xe2\x80\xb0", "\xc5\xa0", "\xe2\x80\xb9",
|
|
"\xc5\x92", "\xc2\x8d", "\xc5\xbd", "\xc2\x8f",
|
|
"\xc2\x90", "\xe2\x80\x98", "\xe2\x80\x99", "\xe2\x80\x9c",
|
|
"\xe2\x80\x9d", "\xe2\x80\xa2", "\xe2\x80\x93", "\xe2\x80\x94",
|
|
"\xcb\x9c", "\xe2\x84\xa2", "\xc5\xa1", "\xe2\x80\xba",
|
|
"\xc5\x93", "\xc2\x9d", "\xc5\xbe", "\xc5\xb8",
|
|
};
|
|
|
|
struct str s = str_make ();
|
|
for (const char *p = text; *p; p++)
|
|
{
|
|
int c = *(unsigned char *) p;
|
|
if (c < 0x80)
|
|
str_append_c (&s, c);
|
|
else if (c < 0xA0)
|
|
str_append (&s, c1[c & 0x1f]);
|
|
else
|
|
str_append_data (&s,
|
|
(char[]) {0xc0 | (c >> 6), 0x80 | (c & 0x3f)}, 2);
|
|
}
|
|
return str_steal (&s);
|
|
}
|
|
|
|
// --- Output formatter --------------------------------------------------------
|
|
|
|
// This complicated piece of code makes attributed text formatting simple.
|
|
// We use a printf-inspired syntax to push attributes and text to the object,
|
|
// then flush it either to a terminal, or a log file with formatting stripped.
|
|
//
|
|
// Format strings use a #-quoted notation, to differentiate from printf:
|
|
// #s inserts a string (expected to be in UTF-8)
|
|
// #d inserts a signed integer
|
|
// #l inserts a locale-encoded string
|
|
//
|
|
// #S inserts a string from the server with unknown encoding
|
|
// #m inserts a mIRC-formatted string (auto-resets at boundaries)
|
|
// #n cuts the nickname from a string and automatically colours it
|
|
// #N is like #n but also appends userhost, if present
|
|
//
|
|
// #a inserts named attributes (auto-resets)
|
|
// #r resets terminal attributes
|
|
// #c sets foreground colour
|
|
// #C sets background colour
|
|
//
|
|
// Modifiers:
|
|
// & free() the string argument after using it
|
|
|
|
static void
|
|
formatter_add_item (struct formatter *self, struct formatter_item template_)
|
|
{
|
|
if (template_.text)
|
|
template_.text = xstrdup (template_.text);
|
|
|
|
if (self->items_len == self->items_alloc)
|
|
self->items = xreallocarray
|
|
(self->items, sizeof *self->items, (self->items_alloc <<= 1));
|
|
self->items[self->items_len++] = template_;
|
|
}
|
|
|
|
#define FORMATTER_ADD_ITEM(self, type_, ...) formatter_add_item ((self), \
|
|
(struct formatter_item) { .type = FORMATTER_ITEM_ ## type_, __VA_ARGS__ })
|
|
|
|
#define FORMATTER_ADD_RESET(self) \
|
|
FORMATTER_ADD_ITEM ((self), ATTR, .attribute = ATTR_RESET)
|
|
#define FORMATTER_ADD_TEXT(self, text_) \
|
|
FORMATTER_ADD_ITEM ((self), TEXT, .text = (text_))
|
|
#define FORMATTER_ADD_SIMPLE(self, attribute_) \
|
|
FORMATTER_ADD_ITEM ((self), SIMPLE, .attribute = TEXT_ ## attribute_)
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
enum
|
|
{
|
|
MIRC_WHITE, MIRC_BLACK, MIRC_BLUE, MIRC_GREEN,
|
|
MIRC_L_RED, MIRC_RED, MIRC_PURPLE, MIRC_ORANGE,
|
|
MIRC_YELLOW, MIRC_L_GREEN, MIRC_CYAN, MIRC_L_CYAN,
|
|
MIRC_L_BLUE, MIRC_L_PURPLE, MIRC_GRAY, MIRC_L_GRAY,
|
|
};
|
|
|
|
// We use estimates from the 16 colour terminal palette, or the 256 colour cube,
|
|
// which is not always available. The mIRC orange colour is only in the cube.
|
|
|
|
static const int g_mirc_to_terminal[] =
|
|
{
|
|
[MIRC_WHITE] = COLOR_256 (BRIGHT (WHITE), 231),
|
|
[MIRC_BLACK] = COLOR_256 (BLACK, 16),
|
|
[MIRC_BLUE] = COLOR_256 (BLUE, 19),
|
|
[MIRC_GREEN] = COLOR_256 (GREEN, 34),
|
|
[MIRC_L_RED] = COLOR_256 (BRIGHT (RED), 196),
|
|
[MIRC_RED] = COLOR_256 (RED, 124),
|
|
[MIRC_PURPLE] = COLOR_256 (MAGENTA, 127),
|
|
[MIRC_ORANGE] = COLOR_256 (BRIGHT (YELLOW), 214),
|
|
[MIRC_YELLOW] = COLOR_256 (BRIGHT (YELLOW), 226),
|
|
[MIRC_L_GREEN] = COLOR_256 (BRIGHT (GREEN), 46),
|
|
[MIRC_CYAN] = COLOR_256 (CYAN, 37),
|
|
[MIRC_L_CYAN] = COLOR_256 (BRIGHT (CYAN), 51),
|
|
[MIRC_L_BLUE] = COLOR_256 (BRIGHT (BLUE), 21),
|
|
[MIRC_L_PURPLE] = COLOR_256 (BRIGHT (MAGENTA),201),
|
|
[MIRC_GRAY] = COLOR_256 (BRIGHT (BLACK), 244),
|
|
[MIRC_L_GRAY] = COLOR_256 (WHITE, 252),
|
|
};
|
|
|
|
// https://modern.ircdocs.horse/formatting.html
|
|
// http://anti.teamidiot.de/static/nei/*/extended_mirc_color_proposal.html
|
|
static const char g_extra_to_256[100 - 16] =
|
|
{
|
|
52, 94, 100, 58, 22, 29, 23, 24, 17, 54, 53, 89,
|
|
88, 130, 142, 64, 28, 35, 30, 25, 18, 91, 90, 125,
|
|
124, 166, 184, 106, 34, 49, 37, 33, 19, 129, 127, 161,
|
|
196, 208, 226, 154, 46, 86 , 51, 75, 21, 171, 201, 198,
|
|
203, 215, 227, 191, 83, 122, 87, 111, 63, 177, 207, 205,
|
|
217, 223, 229, 193, 157, 158, 159, 153, 147, 183, 219, 212,
|
|
16, 233, 235, 237, 239, 241, 244, 247, 250, 254, 231, -1
|
|
};
|
|
|
|
static const char *
|
|
formatter_parse_mirc_color (struct formatter *self, const char *s)
|
|
{
|
|
if (!isdigit_ascii (*s))
|
|
{
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR, .color = -1);
|
|
FORMATTER_ADD_ITEM (self, BG_COLOR, .color = -1);
|
|
return s;
|
|
}
|
|
|
|
int fg = *s++ - '0';
|
|
if (isdigit_ascii (*s))
|
|
fg = fg * 10 + (*s++ - '0');
|
|
if (fg < 16)
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR, .color = g_mirc_to_terminal[fg]);
|
|
else
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR,
|
|
.color = COLOR_256 (DEFAULT, g_extra_to_256[fg]));
|
|
|
|
if (*s != ',' || !isdigit_ascii (s[1]))
|
|
return s;
|
|
s++;
|
|
|
|
int bg = *s++ - '0';
|
|
if (isdigit_ascii (*s))
|
|
bg = bg * 10 + (*s++ - '0');
|
|
if (bg < 16)
|
|
FORMATTER_ADD_ITEM (self, BG_COLOR, .color = g_mirc_to_terminal[bg]);
|
|
else
|
|
FORMATTER_ADD_ITEM (self, BG_COLOR,
|
|
.color = COLOR_256 (DEFAULT, g_extra_to_256[bg]));
|
|
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
formatter_parse_mirc (struct formatter *self, const char *s)
|
|
{
|
|
FORMATTER_ADD_RESET (self);
|
|
|
|
struct str buf = str_make ();
|
|
unsigned char c;
|
|
while ((c = *s++))
|
|
{
|
|
if (buf.len && c < 0x20)
|
|
{
|
|
FORMATTER_ADD_TEXT (self, buf.str);
|
|
str_reset (&buf);
|
|
}
|
|
|
|
switch (c)
|
|
{
|
|
case '\x02': FORMATTER_ADD_SIMPLE (self, BOLD); break;
|
|
case '\x11': /* monospace, N/A */ break;
|
|
case '\x1d': FORMATTER_ADD_SIMPLE (self, ITALIC); break;
|
|
case '\x1e': FORMATTER_ADD_SIMPLE (self, CROSSED_OUT); break;
|
|
case '\x1f': FORMATTER_ADD_SIMPLE (self, UNDERLINE); break;
|
|
case '\x16': FORMATTER_ADD_SIMPLE (self, INVERSE); break;
|
|
|
|
case '\x03':
|
|
s = formatter_parse_mirc_color (self, s);
|
|
break;
|
|
case '\x0f':
|
|
FORMATTER_ADD_RESET (self);
|
|
break;
|
|
default:
|
|
str_append_c (&buf, c);
|
|
}
|
|
}
|
|
|
|
if (buf.len)
|
|
FORMATTER_ADD_TEXT (self, buf.str);
|
|
|
|
str_free (&buf);
|
|
FORMATTER_ADD_RESET (self);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
formatter_parse_nick (struct formatter *self, const char *s)
|
|
{
|
|
// For outgoing messages; maybe we should add a special #t for them
|
|
// which would also make us not cut off the userhost part, ever
|
|
if (irc_is_channel (self->s, irc_skip_statusmsg (self->s, s)))
|
|
{
|
|
char *tmp = irc_to_utf8 (s);
|
|
FORMATTER_ADD_TEXT (self, tmp);
|
|
free (tmp);
|
|
return;
|
|
}
|
|
|
|
char *nick = irc_cut_nickname (s);
|
|
int color = siphash_wrapper (nick, strlen (nick)) % 7;
|
|
|
|
// Never use the black colour, could become transparent on black terminals;
|
|
// white is similarly excluded from the range
|
|
if (color == COLOR_BLACK)
|
|
color = (uint16_t) -1;
|
|
|
|
// Use a colour from the 256-colour cube if available
|
|
color |= self->ctx->nick_palette[siphash_wrapper (nick,
|
|
strlen (nick)) % self->ctx->nick_palette_len] << 16;
|
|
|
|
// We always use the default colour for ourselves
|
|
if (self->s && irc_is_this_us (self->s, nick))
|
|
color = -1;
|
|
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR, .color = color);
|
|
|
|
char *x = irc_to_utf8 (nick);
|
|
free (nick);
|
|
FORMATTER_ADD_TEXT (self, x);
|
|
free (x);
|
|
|
|
// Need to reset the colour afterwards
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR, .color = -1);
|
|
}
|
|
|
|
static void
|
|
formatter_parse_nick_full (struct formatter *self, const char *s)
|
|
{
|
|
formatter_parse_nick (self, s);
|
|
|
|
const char *userhost;
|
|
if (!(userhost = irc_find_userhost (s)))
|
|
return;
|
|
|
|
FORMATTER_ADD_TEXT (self, " (");
|
|
FORMATTER_ADD_ITEM (self, ATTR, .attribute = ATTR_USERHOST);
|
|
|
|
char *x = irc_to_utf8 (userhost);
|
|
FORMATTER_ADD_TEXT (self, x);
|
|
free (x);
|
|
|
|
FORMATTER_ADD_RESET (self);
|
|
FORMATTER_ADD_TEXT (self, ")");
|
|
}
|
|
|
|
static const char *
|
|
formatter_parse_field (struct formatter *self,
|
|
const char *field, struct str *buf, va_list *ap)
|
|
{
|
|
bool free_string = false;
|
|
char *s = NULL;
|
|
char *tmp = NULL;
|
|
int c;
|
|
|
|
restart:
|
|
switch ((c = *field++))
|
|
{
|
|
// We can push boring text content to the caller's buffer
|
|
// and let it flush the buffer only when it's actually needed
|
|
case 'd':
|
|
tmp = xstrdup_printf ("%d", va_arg (*ap, int));
|
|
str_append (buf, tmp);
|
|
free (tmp);
|
|
break;
|
|
case 's':
|
|
str_append (buf, (s = va_arg (*ap, char *)));
|
|
break;
|
|
case 'l':
|
|
if (!(tmp = iconv_xstrdup (self->ctx->term_to_utf8,
|
|
(s = va_arg (*ap, char *)), -1, NULL)))
|
|
print_error ("character conversion failed for: %s", "output");
|
|
else
|
|
str_append (buf, tmp);
|
|
free (tmp);
|
|
break;
|
|
|
|
case 'S':
|
|
tmp = irc_to_utf8 ((s = va_arg (*ap, char *)));
|
|
str_append (buf, tmp);
|
|
free (tmp);
|
|
break;
|
|
case 'm':
|
|
tmp = irc_to_utf8 ((s = va_arg (*ap, char *)));
|
|
formatter_parse_mirc (self, tmp);
|
|
free (tmp);
|
|
break;
|
|
case 'n':
|
|
formatter_parse_nick (self, (s = va_arg (*ap, char *)));
|
|
break;
|
|
case 'N':
|
|
formatter_parse_nick_full (self, (s = va_arg (*ap, char *)));
|
|
break;
|
|
|
|
case 'a':
|
|
FORMATTER_ADD_ITEM (self, ATTR, .attribute = va_arg (*ap, int));
|
|
break;
|
|
case 'c':
|
|
FORMATTER_ADD_ITEM (self, FG_COLOR, .color = va_arg (*ap, int));
|
|
break;
|
|
case 'C':
|
|
FORMATTER_ADD_ITEM (self, BG_COLOR, .color = va_arg (*ap, int));
|
|
break;
|
|
case 'r':
|
|
FORMATTER_ADD_RESET (self);
|
|
break;
|
|
|
|
default:
|
|
if (c == '&' && !free_string)
|
|
free_string = true;
|
|
else if (c)
|
|
hard_assert (!"unexpected format specifier");
|
|
else
|
|
hard_assert (!"unexpected end of format string");
|
|
goto restart;
|
|
}
|
|
|
|
if (free_string)
|
|
free (s);
|
|
return field;
|
|
}
|
|
|
|
// I was unable to take a pointer of a bare "va_list" when it was passed in
|
|
// as a function argument, so it has to be a pointer from the beginning
|
|
static void
|
|
formatter_addv (struct formatter *self, const char *format, va_list *ap)
|
|
{
|
|
struct str buf = str_make ();
|
|
while (*format)
|
|
{
|
|
if (*format != '#' || *++format == '#')
|
|
{
|
|
str_append_c (&buf, *format++);
|
|
continue;
|
|
}
|
|
if (buf.len)
|
|
{
|
|
FORMATTER_ADD_TEXT (self, buf.str);
|
|
str_reset (&buf);
|
|
}
|
|
|
|
format = formatter_parse_field (self, format, &buf, ap);
|
|
}
|
|
|
|
if (buf.len)
|
|
FORMATTER_ADD_TEXT (self, buf.str);
|
|
|
|
str_free (&buf);
|
|
}
|
|
|
|
static void
|
|
formatter_add (struct formatter *self, const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
formatter_addv (self, format, &ap);
|
|
va_end (ap);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct line_char_attrs
|
|
{
|
|
int named; ///< Named attribute or -1
|
|
int text; ///< Text attributes
|
|
int fg; ///< Foreground colour (-1 for default)
|
|
int bg; ///< Background colour (-1 for default)
|
|
};
|
|
|
|
struct line_char
|
|
{
|
|
LIST_HEADER (struct line_char)
|
|
|
|
char bytes[MB_LEN_MAX]; ///< The character
|
|
size_t len; ///< Length of the character in bytes
|
|
wchar_t wide; ///< The character as a wchar_t
|
|
int width; ///< Width of the character in cells
|
|
struct line_char_attrs attrs; ///< Attributes
|
|
};
|
|
|
|
static struct line_char *
|
|
line_char_new (const char *mb, size_t mb_len, wchar_t wc)
|
|
{
|
|
struct line_char *self = xcalloc (1, sizeof *self);
|
|
memcpy (self->bytes, mb, (self->len = MIN (mb_len, sizeof self->bytes)));
|
|
self->width = wcwidth ((self->wide = wc));
|
|
|
|
// Typically various control characters
|
|
if (self->width < 0)
|
|
self->width = 0;
|
|
|
|
self->attrs.bg = self->attrs.fg = -1;
|
|
self->attrs.named = ATTR_RESET;
|
|
return self;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct line_wrap_mark
|
|
{
|
|
struct line_char *start; ///< First character
|
|
int used; ///< Display cells used
|
|
};
|
|
|
|
static void
|
|
line_wrap_mark_push (struct line_wrap_mark *mark, struct line_char *c)
|
|
{
|
|
if (!mark->start)
|
|
mark->start = c;
|
|
mark->used += c->width;
|
|
}
|
|
|
|
struct line_wrap_state
|
|
{
|
|
struct line_char *result; ///< Head of result
|
|
struct line_char *result_tail; ///< Tail of result
|
|
|
|
int line_used; ///< Line length before marks
|
|
int line_max; ///< Maximum line length
|
|
struct line_wrap_mark chunk; ///< All buffered text
|
|
struct line_wrap_mark overflow; ///< Overflowing text
|
|
};
|
|
|
|
static void
|
|
line_wrap_flush_split (struct line_wrap_state *s, struct line_wrap_mark *before)
|
|
{
|
|
struct line_char *nl = line_char_new ("\n", 1, L'\n');
|
|
LIST_INSERT_WITH_TAIL (s->result, s->result_tail, nl, before->start);
|
|
s->line_used = before->used;
|
|
}
|
|
|
|
static void
|
|
line_wrap_flush (struct line_wrap_state *s, bool force_split)
|
|
{
|
|
if (!s->overflow.start)
|
|
s->line_used += s->chunk.used;
|
|
else if (force_split || s->chunk.used > s->line_max)
|
|
{
|
|
#ifdef WRAP_UNNECESSARILY
|
|
// When the line wraps at the end of the screen and a background colour
|
|
// is set, the terminal paints the entire new line with that colour.
|
|
// Explicitly inserting a newline with the default attributes fixes it.
|
|
line_wrap_flush_split (s, &s->overflow);
|
|
#else
|
|
// Splitting here breaks link searching mechanisms in some terminals,
|
|
// though, so we make a trade-off and let the chunk wrap naturally.
|
|
// Fuck terminals, really.
|
|
s->line_used = s->overflow.used;
|
|
#endif
|
|
}
|
|
else
|
|
// Print the chunk in its entirety on a new line
|
|
line_wrap_flush_split (s, &s->chunk);
|
|
|
|
memset (&s->chunk, 0, sizeof s->chunk);
|
|
memset (&s->overflow, 0, sizeof s->overflow);
|
|
}
|
|
|
|
static void
|
|
line_wrap_nl (struct line_wrap_state *s)
|
|
{
|
|
line_wrap_flush (s, true);
|
|
struct line_char *nl = line_char_new ("\n", 1, L'\n');
|
|
LIST_APPEND_WITH_TAIL (s->result, s->result_tail, nl);
|
|
s->line_used = 0;
|
|
}
|
|
|
|
static void
|
|
line_wrap_tab (struct line_wrap_state *s, struct line_char *c)
|
|
{
|
|
line_wrap_flush (s, true);
|
|
if (s->line_used >= s->line_max)
|
|
line_wrap_nl (s);
|
|
|
|
// Compute the number of characters needed to get to the next tab stop
|
|
int tab_width = ((s->line_used + 8) & ~7) - s->line_used;
|
|
// On overflow just fill the rest of the line with spaces
|
|
if (s->line_used + tab_width > s->line_max)
|
|
tab_width = s->line_max - s->line_used;
|
|
|
|
s->line_used += tab_width;
|
|
while (tab_width--)
|
|
{
|
|
struct line_char *space = line_char_new (" ", 1, L' ');
|
|
space->attrs = c->attrs;
|
|
LIST_APPEND_WITH_TAIL (s->result, s->result_tail, space);
|
|
}
|
|
}
|
|
|
|
static void
|
|
line_wrap_push_char (struct line_wrap_state *s, struct line_char *c)
|
|
{
|
|
// Note that when processing whitespace here, any non-WS chunk has already
|
|
// been flushed, and thus it matters little if we flush with force split
|
|
if (wcschr (L"\r\f\v", c->wide))
|
|
/* Skip problematic characters */;
|
|
else if (c->wide == L'\n')
|
|
line_wrap_nl (s);
|
|
else if (c->wide == L'\t')
|
|
line_wrap_tab (s, c);
|
|
else
|
|
goto use_as_is;
|
|
free (c);
|
|
return;
|
|
|
|
use_as_is:
|
|
if (s->overflow.start
|
|
|| s->line_used + s->chunk.used + c->width > s->line_max)
|
|
{
|
|
if (s->overflow.used + c->width > s->line_max)
|
|
{
|
|
#ifdef WRAP_UNNECESSARILY
|
|
// If the overflow overflows, restart on a new line
|
|
line_wrap_nl (s);
|
|
#else
|
|
// See line_wrap_flush(), we would end up on a new line anyway
|
|
line_wrap_flush (s, true);
|
|
s->line_used = 0;
|
|
#endif
|
|
}
|
|
else
|
|
line_wrap_mark_push (&s->overflow, c);
|
|
}
|
|
line_wrap_mark_push (&s->chunk, c);
|
|
LIST_APPEND_WITH_TAIL (s->result, s->result_tail, c);
|
|
}
|
|
|
|
/// Basic word wrapping that respects wcwidth(3) and expands tabs.
|
|
/// Besides making text easier to read, it also fixes the problem with
|
|
/// formatting spilling over the entire new line on line wrap.
|
|
static struct line_char *
|
|
line_wrap (struct line_char *line, int max_width)
|
|
{
|
|
struct line_wrap_state s = { .line_max = max_width };
|
|
bool last_was_word_char = false;
|
|
LIST_FOR_EACH (struct line_char, c, line)
|
|
{
|
|
// Act on the right boundary of (\s*\S+) chunks
|
|
bool this_is_word_char = !wcschr (L" \t\r\n\f\v", c->wide);
|
|
if (last_was_word_char && !this_is_word_char)
|
|
line_wrap_flush (&s, false);
|
|
last_was_word_char = this_is_word_char;
|
|
|
|
LIST_UNLINK (line, c);
|
|
line_wrap_push_char (&s, c);
|
|
}
|
|
|
|
// Make sure to process the last word and return the modified list
|
|
line_wrap_flush (&s, false);
|
|
return s.result;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct exploder
|
|
{
|
|
struct app_context *ctx; ///< Application context
|
|
struct line_char *result; ///< Result
|
|
struct line_char *result_tail; ///< Tail of result
|
|
struct line_char_attrs attrs; ///< Current attributes
|
|
};
|
|
|
|
static bool
|
|
explode_formatter_attr (struct exploder *self, struct formatter_item *item)
|
|
{
|
|
switch (item->type)
|
|
{
|
|
case FORMATTER_ITEM_ATTR:
|
|
self->attrs.named = item->attribute;
|
|
self->attrs.text = 0;
|
|
self->attrs.fg = -1;
|
|
self->attrs.bg = -1;
|
|
return true;
|
|
case FORMATTER_ITEM_SIMPLE:
|
|
self->attrs.named = -1;
|
|
self->attrs.text ^= item->attribute;
|
|
return true;
|
|
case FORMATTER_ITEM_FG_COLOR:
|
|
self->attrs.named = -1;
|
|
self->attrs.fg = item->color;
|
|
return true;
|
|
case FORMATTER_ITEM_BG_COLOR:
|
|
self->attrs.named = -1;
|
|
self->attrs.bg = item->color;
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static void
|
|
explode_text (struct exploder *self, const char *text)
|
|
{
|
|
// Throw away any potentially harmful control characters first
|
|
struct str filtered = str_make ();
|
|
for (const char *p = text; *p; p++)
|
|
if (!strchr ("\a\b\x0e\x0f\x1b" /* BEL BS SO SI ESC */, *p))
|
|
str_append_c (&filtered, *p);
|
|
|
|
size_t term_len = 0;
|
|
char *term = iconv_xstrdup (self->ctx->term_from_utf8,
|
|
filtered.str, filtered.len + 1, &term_len);
|
|
str_free (&filtered);
|
|
|
|
mbstate_t ps;
|
|
memset (&ps, 0, sizeof ps);
|
|
|
|
wchar_t wch;
|
|
size_t len, processed = 0;
|
|
while ((len = mbrtowc (&wch, term + processed, term_len - processed, &ps)))
|
|
{
|
|
hard_assert (len != (size_t) -2 && len != (size_t) -1);
|
|
processed += len;
|
|
|
|
struct line_char *c = line_char_new (term + processed - len, len, wch);
|
|
c->attrs = self->attrs;
|
|
LIST_APPEND_WITH_TAIL (self->result, self->result_tail, c);
|
|
}
|
|
free (term);
|
|
}
|
|
|
|
static struct line_char *
|
|
formatter_to_chars (struct formatter *formatter)
|
|
{
|
|
struct exploder self = { .ctx = formatter->ctx };
|
|
self.attrs.fg = self.attrs.bg = self.attrs.named = -1;
|
|
|
|
int attribute_ignore = 0;
|
|
for (size_t i = 0; i < formatter->items_len; i++)
|
|
{
|
|
struct formatter_item *iter = &formatter->items[i];
|
|
if (iter->type == FORMATTER_ITEM_TEXT)
|
|
explode_text (&self, iter->text);
|
|
else if (iter->type == FORMATTER_ITEM_IGNORE_ATTR)
|
|
attribute_ignore += iter->attribute;
|
|
else if (attribute_ignore <= 0
|
|
&& !explode_formatter_attr (&self, iter))
|
|
hard_assert (!"unhandled formatter item type");
|
|
}
|
|
return self.result;
|
|
}
|
|
|
|
enum
|
|
{
|
|
FLUSH_OPT_RAW = (1 << 0), ///< Print raw attributes
|
|
FLUSH_OPT_NOWRAP = (1 << 1) ///< Do not wrap
|
|
};
|
|
|
|
static void
|
|
formatter_flush (struct formatter *self, FILE *stream, int flush_opts)
|
|
{
|
|
struct line_char *line = formatter_to_chars (self);
|
|
|
|
bool is_tty = !!get_attribute_printer (stream);
|
|
if (!is_tty && !(flush_opts & FLUSH_OPT_RAW))
|
|
{
|
|
LIST_FOR_EACH (struct line_char, c, line)
|
|
{
|
|
fwrite (c->bytes, c->len, 1, stream);
|
|
free (c);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (self->ctx->word_wrapping && !(flush_opts & FLUSH_OPT_NOWRAP))
|
|
line = line_wrap (line, g_terminal.columns);
|
|
|
|
struct attr_printer state = ATTR_PRINTER_INIT (self->ctx, stream);
|
|
struct line_char_attrs attrs = {}; // Won't compare equal to anything
|
|
LIST_FOR_EACH (struct line_char, c, line)
|
|
{
|
|
if (attrs.fg != c->attrs.fg
|
|
|| attrs.bg != c->attrs.bg
|
|
|| attrs.named != c->attrs.named
|
|
|| attrs.text != c->attrs.text)
|
|
{
|
|
attrs = c->attrs;
|
|
if (attrs.named != -1)
|
|
attr_printer_apply_named (&state, attrs.named);
|
|
else
|
|
attr_printer_apply (&state, attrs.text, attrs.fg, attrs.bg);
|
|
}
|
|
|
|
fwrite (c->bytes, c->len, 1, stream);
|
|
free (c);
|
|
}
|
|
attr_printer_reset (&state);
|
|
}
|
|
|
|
// --- Buffers -----------------------------------------------------------------
|
|
|
|
static void
|
|
buffer_pop_excess_lines (struct app_context *ctx, struct buffer *self)
|
|
{
|
|
int to_delete = (int) self->lines_count - (int) ctx->backlog_limit;
|
|
while (to_delete-- > 0 && self->lines)
|
|
{
|
|
struct buffer_line *excess = self->lines;
|
|
LIST_UNLINK_WITH_TAIL (self->lines, self->lines_tail, excess);
|
|
buffer_line_destroy (excess);
|
|
self->lines_count--;
|
|
}
|
|
}
|
|
|
|
static void
|
|
on_config_backlog_limit_change (struct config_item *item)
|
|
{
|
|
struct app_context *ctx = item->user_data;
|
|
ctx->backlog_limit = MIN (item->value.integer, INT_MAX);
|
|
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
buffer_pop_excess_lines (ctx, iter);
|
|
}
|
|
|
|
static void
|
|
buffer_update_time (struct app_context *ctx, time_t now, FILE *stream,
|
|
int flush_opts)
|
|
{
|
|
struct tm last, current;
|
|
if (!localtime_r (&ctx->last_displayed_msg_time, &last)
|
|
|| !localtime_r (&now, ¤t))
|
|
{
|
|
// Strange but nonfatal
|
|
print_error ("%s: %s", "localtime_r", strerror (errno));
|
|
return;
|
|
}
|
|
|
|
ctx->last_displayed_msg_time = now;
|
|
if (last.tm_year == current.tm_year
|
|
&& last.tm_mon == current.tm_mon
|
|
&& last.tm_mday == current.tm_mday)
|
|
return;
|
|
|
|
char buf[64] = "";
|
|
const char *format =
|
|
get_config_string (ctx->config.root, "behaviour.date_change_line");
|
|
if (!strftime (buf, sizeof buf, format, ¤t))
|
|
{
|
|
print_error ("%s: %s", "strftime", strerror (errno));
|
|
return;
|
|
}
|
|
|
|
struct formatter f = formatter_make (ctx, NULL);
|
|
formatter_add (&f, "#a#s\n", ATTR_DATE_CHANGE, buf);
|
|
formatter_flush (&f, stream, flush_opts);
|
|
// Flush the trailing formatting reset item
|
|
fflush (stream);
|
|
formatter_free (&f);
|
|
}
|
|
|
|
static void
|
|
buffer_line_flush (struct buffer_line *line, struct formatter *f, FILE *output,
|
|
int flush_opts)
|
|
{
|
|
int flags = line->flags;
|
|
if (flags & BUFFER_LINE_INDENT) formatter_add (f, " ");
|
|
if (flags & BUFFER_LINE_STATUS) formatter_add (f, " - ");
|
|
if (flags & BUFFER_LINE_ERROR) formatter_add (f, "#a=!=#r ", ATTR_ERROR);
|
|
|
|
for (struct formatter_item *iter = line->items; iter->type; iter++)
|
|
formatter_add_item (f, *iter);
|
|
|
|
formatter_add (f, "\n");
|
|
formatter_flush (f, output, flush_opts);
|
|
formatter_free (f);
|
|
}
|
|
|
|
static void
|
|
buffer_line_write_time (struct formatter *f, struct buffer_line *line,
|
|
FILE *stream, int flush_opts)
|
|
{
|
|
// Normal timestamps don't include the date, make sure the user won't be
|
|
// confused as to when an event has happened
|
|
buffer_update_time (f->ctx, line->when, stream, flush_opts);
|
|
|
|
struct tm current;
|
|
char buf[9];
|
|
if (!localtime_r (&line->when, ¤t))
|
|
print_error ("%s: %s", "localtime_r", strerror (errno));
|
|
else if (!strftime (buf, sizeof buf, "%T", ¤t))
|
|
print_error ("%s: %s", "strftime", "buffer too small");
|
|
else
|
|
formatter_add (f, "#a#s#r ", ATTR_TIMESTAMP, buf);
|
|
}
|
|
|
|
#define buffer_line_will_show_up(buffer, line) \
|
|
(!(buffer)->hide_unimportant || !((line)->flags & BUFFER_LINE_UNIMPORTANT))
|
|
|
|
static void
|
|
buffer_line_display (struct app_context *ctx,
|
|
struct buffer *buffer, struct buffer_line *line, bool is_external)
|
|
{
|
|
if (!buffer_line_will_show_up (buffer, line))
|
|
return;
|
|
|
|
CALL (ctx->input, hide);
|
|
|
|
struct formatter f = formatter_make (ctx, NULL);
|
|
buffer_line_write_time (&f, line, stdout, 0);
|
|
|
|
// Ignore all formatting for messages coming from other buffers, that is
|
|
// either from the global or server buffer. Instead print them in grey.
|
|
if (is_external)
|
|
{
|
|
formatter_add (&f, "#a", ATTR_EXTERNAL);
|
|
FORMATTER_ADD_ITEM (&f, IGNORE_ATTR, .attribute = 1);
|
|
}
|
|
buffer_line_flush (line, &f, stdout, 0);
|
|
// Flush the trailing formatting reset item
|
|
fflush (stdout);
|
|
|
|
CALL (ctx->input, show);
|
|
}
|
|
|
|
static void
|
|
buffer_line_write_to_backlog (struct app_context *ctx,
|
|
struct buffer_line *line, FILE *log_file, int flush_opts)
|
|
{
|
|
struct formatter f = formatter_make (ctx, NULL);
|
|
buffer_line_write_time (&f, line, log_file, flush_opts);
|
|
buffer_line_flush (line, &f, log_file, flush_opts);
|
|
}
|
|
|
|
static void
|
|
buffer_line_write_to_log (struct app_context *ctx,
|
|
struct buffer_line *line, FILE *log_file)
|
|
{
|
|
if (line->flags & BUFFER_LINE_SKIP_FILE)
|
|
return;
|
|
|
|
struct formatter f = formatter_make (ctx, NULL);
|
|
struct tm current;
|
|
char buf[20];
|
|
if (!gmtime_r (&line->when, ¤t))
|
|
print_error ("%s: %s", "gmtime_r", strerror (errno));
|
|
else if (!strftime (buf, sizeof buf, "%F %T", ¤t))
|
|
print_error ("%s: %s", "strftime", "buffer too small");
|
|
else
|
|
formatter_add (&f, "#s ", buf);
|
|
|
|
// The target is not a terminal, thus it won't wrap in spite of the 0
|
|
buffer_line_flush (line, &f, log_file, 0);
|
|
}
|
|
|
|
static void
|
|
log_formatter (struct app_context *ctx,
|
|
struct buffer *buffer, int flags, struct formatter *f)
|
|
{
|
|
if (!buffer)
|
|
buffer = ctx->global_buffer;
|
|
|
|
struct buffer_line *line = buffer_line_new (f);
|
|
line->flags = flags;
|
|
// TODO: allow providing custom time (IRCv3.2 server-time)
|
|
line->when = time (NULL);
|
|
|
|
buffer_pop_excess_lines (ctx, buffer);
|
|
LIST_APPEND_WITH_TAIL (buffer->lines, buffer->lines_tail, line);
|
|
buffer->lines_count++;
|
|
|
|
if (buffer->log_file)
|
|
buffer_line_write_to_log (ctx, line, buffer->log_file);
|
|
|
|
bool unseen_pm = buffer->type == BUFFER_PM
|
|
&& buffer != ctx->current_buffer
|
|
&& !(flags & BUFFER_LINE_UNIMPORTANT);
|
|
bool important = (flags & BUFFER_LINE_HIGHLIGHT) || unseen_pm;
|
|
if (ctx->beep_on_highlight && important)
|
|
// XXX: this may disturb any other foreground process
|
|
CALL (ctx->input, ding);
|
|
|
|
bool can_leak = false;
|
|
if ((buffer == ctx->global_buffer)
|
|
|| (ctx->current_buffer->type == BUFFER_GLOBAL
|
|
&& buffer->type == BUFFER_SERVER)
|
|
|| (ctx->current_buffer->type != BUFFER_GLOBAL
|
|
&& buffer == ctx->current_buffer->server->buffer))
|
|
can_leak = true;
|
|
|
|
bool displayed = true;
|
|
if (ctx->terminal_suspended > 0)
|
|
// Another process is using the terminal
|
|
displayed = false;
|
|
else if (buffer == ctx->current_buffer)
|
|
buffer_line_display (ctx, buffer, line, false);
|
|
else if (!ctx->isolate_buffers && can_leak)
|
|
buffer_line_display (ctx, buffer, line, true);
|
|
else
|
|
displayed = false;
|
|
|
|
// Advance the unread marker in active buffers but don't create a new one
|
|
if (!displayed
|
|
|| (buffer == ctx->current_buffer && buffer->new_messages_count))
|
|
{
|
|
buffer->new_messages_count++;
|
|
if (flags & BUFFER_LINE_UNIMPORTANT)
|
|
buffer->new_unimportant_count++;
|
|
buffer->highlighted |= important;
|
|
}
|
|
if (!displayed)
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void
|
|
log_full (struct app_context *ctx, struct server *s, struct buffer *buffer,
|
|
int flags, const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
|
|
struct formatter f = formatter_make (ctx, s);
|
|
formatter_addv (&f, format, &ap);
|
|
log_formatter (ctx, buffer, flags, &f);
|
|
|
|
va_end (ap);
|
|
}
|
|
|
|
#define log_global(ctx, flags, ...) \
|
|
log_full ((ctx), NULL, (ctx)->global_buffer, flags, __VA_ARGS__)
|
|
#define log_server(s, buffer, flags, ...) \
|
|
log_full ((s)->ctx, s, (buffer), flags, __VA_ARGS__)
|
|
|
|
#define log_global_status(ctx, ...) \
|
|
log_global ((ctx), BUFFER_LINE_STATUS, __VA_ARGS__)
|
|
#define log_global_error(ctx, ...) \
|
|
log_global ((ctx), BUFFER_LINE_ERROR, __VA_ARGS__)
|
|
#define log_global_indent(ctx, ...) \
|
|
log_global ((ctx), BUFFER_LINE_INDENT, __VA_ARGS__)
|
|
|
|
#define log_server_status(s, buffer, ...) \
|
|
log_server ((s), (buffer), BUFFER_LINE_STATUS, __VA_ARGS__)
|
|
#define log_server_error(s, buffer, ...) \
|
|
log_server ((s), (buffer), BUFFER_LINE_ERROR, __VA_ARGS__)
|
|
|
|
#define log_global_debug(ctx, ...) \
|
|
BLOCK_START \
|
|
if (g_debug_mode) \
|
|
log_global ((ctx), 0, "(*) " __VA_ARGS__); \
|
|
BLOCK_END
|
|
|
|
#define log_server_debug(s, ...) \
|
|
BLOCK_START \
|
|
if (g_debug_mode) \
|
|
log_server ((s), (s)->buffer, 0, "(*) " __VA_ARGS__); \
|
|
BLOCK_END
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// Lines that are used in more than one place
|
|
|
|
#define log_nick_self(s, buffer, new_) \
|
|
log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT, \
|
|
"You are now known as #n", (new_))
|
|
#define log_nick(s, buffer, old, new_) \
|
|
log_server ((s), (buffer), BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT, \
|
|
"#n is now known as #n", (old), (new_))
|
|
|
|
#define log_outcoming_notice(s, buffer, who, text) \
|
|
log_server_status ((s), (buffer), "#s(#n): #m", "Notice", (who), (text))
|
|
#define log_outcoming_privmsg(s, buffer, prefixes, who, text) \
|
|
log_server ((s), (buffer), 0, "<#s#n> #m", (prefixes), (who), (text))
|
|
#define log_outcoming_action(s, buffer, who, text) \
|
|
log_server ((s), (buffer), 0, " #a*#r #n #m", ATTR_ACTION, (who), (text))
|
|
|
|
#define log_outcoming_orphan_notice(s, target, text) \
|
|
log_server_status ((s), (s)->buffer, "Notice -> #n: #m", (target), (text))
|
|
#define log_outcoming_orphan_privmsg(s, target, text) \
|
|
log_server_status ((s), (s)->buffer, "MSG(#n): #m", (target), (text))
|
|
|
|
#define log_ctcp_query(s, target, tag) \
|
|
log_server_status ((s), (s)->buffer, "CTCP query to #S: #S", target, tag)
|
|
#define log_ctcp_reply(s, target, reply /* freed! */) \
|
|
log_server_status ((s), (s)->buffer, "CTCP reply to #S: #&S", target, reply)
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
make_log_filename (const char *filename, struct str *output)
|
|
{
|
|
for (const char *p = filename; *p; p++)
|
|
// XXX: anything more to replace?
|
|
if (strchr ("/\\ ", *p))
|
|
str_append_c (output, '_');
|
|
else
|
|
str_append_c (output, tolower_ascii (*p));
|
|
}
|
|
|
|
static char *
|
|
buffer_get_log_path (struct buffer *buffer)
|
|
{
|
|
struct str path = str_make ();
|
|
get_xdg_home_dir (&path, "XDG_DATA_HOME", ".local/share");
|
|
str_append_printf (&path, "/%s/%s", PROGRAM_NAME, "logs");
|
|
|
|
(void) mkdir_with_parents (path.str, NULL);
|
|
|
|
str_append_c (&path, '/');
|
|
make_log_filename (buffer->name, &path);
|
|
str_append (&path, ".log");
|
|
return str_steal (&path);
|
|
}
|
|
|
|
static void
|
|
buffer_open_log_file (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
if (!ctx->logging || buffer->log_file)
|
|
return;
|
|
|
|
// TODO: should we try to reopen files wrt. case mapping?
|
|
char *path = buffer_get_log_path (buffer);
|
|
if (!(buffer->log_file = fopen (path, "ab")))
|
|
log_global_error (ctx, "Couldn't open log file `#s': #l",
|
|
path, strerror (errno));
|
|
else
|
|
set_cloexec (fileno (buffer->log_file));
|
|
free (path);
|
|
}
|
|
|
|
static void
|
|
buffer_close_log_file (struct buffer *buffer)
|
|
{
|
|
if (buffer->log_file)
|
|
(void) fclose (buffer->log_file);
|
|
buffer->log_file = NULL;
|
|
}
|
|
|
|
static void
|
|
on_config_logging_change (struct config_item *item)
|
|
{
|
|
struct app_context *ctx = item->user_data;
|
|
ctx->logging = item->value.boolean;
|
|
|
|
for (struct buffer *buffer = ctx->buffers; buffer; buffer = buffer->next)
|
|
if (ctx->logging)
|
|
buffer_open_log_file (ctx, buffer);
|
|
else
|
|
buffer_close_log_file (buffer);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static struct buffer *
|
|
buffer_by_name (struct app_context *ctx, const char *name)
|
|
{
|
|
return str_map_find (&ctx->buffers_by_name, name);
|
|
}
|
|
|
|
static void
|
|
buffer_add (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
hard_assert (!buffer_by_name (ctx, buffer->name));
|
|
|
|
str_map_set (&ctx->buffers_by_name, buffer->name, buffer);
|
|
LIST_APPEND_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
|
|
|
|
buffer_open_log_file (ctx, buffer);
|
|
|
|
// Normally this doesn't cause changes in the prompt but a prompt hook
|
|
// could decide to show some information for all buffers nonetheless
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void
|
|
buffer_remove (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
hard_assert (buffer != ctx->current_buffer);
|
|
hard_assert (buffer != ctx->global_buffer);
|
|
|
|
CALL_ (ctx->input, buffer_destroy, buffer->input_data);
|
|
buffer->input_data = NULL;
|
|
|
|
// And make sure to unlink the buffer from "irc_buffer_map"
|
|
struct server *s = buffer->server;
|
|
if (buffer->channel)
|
|
str_map_set (&s->irc_buffer_map, buffer->channel->name, NULL);
|
|
if (buffer->user)
|
|
str_map_set (&s->irc_buffer_map, buffer->user->nickname, NULL);
|
|
|
|
if (buffer == ctx->last_buffer)
|
|
ctx->last_buffer = NULL;
|
|
if (buffer->type == BUFFER_SERVER)
|
|
buffer->server->buffer = NULL;
|
|
|
|
str_map_set (&ctx->buffers_by_name, buffer->name, NULL);
|
|
LIST_UNLINK_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
|
|
buffer_unref (buffer);
|
|
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void
|
|
buffer_print_read_marker (struct app_context *ctx, FILE *stream, int flush_opts)
|
|
{
|
|
struct formatter f = formatter_make (ctx, NULL);
|
|
const int timestamp_width = 8; // hardcoded to %T right now, simple
|
|
const char *marker_char = get_config_string (ctx->config.root,
|
|
"behaviour.read_marker_char");
|
|
|
|
// We could turn this off on FLUSH_OPT_NOWRAP, however our default pager
|
|
// wraps lines for us even if we don't do it ourselves, and thus there's
|
|
// no need to worry about inconsistency.
|
|
if (*marker_char)
|
|
{
|
|
struct str s = str_make ();
|
|
for (int i = 0; i < timestamp_width; i++)
|
|
str_append (&s, marker_char);
|
|
formatter_add (&f, "#a#s#r", ATTR_TIMESTAMP, s.str);
|
|
str_reset (&s);
|
|
for (int i = timestamp_width; i < g_terminal.columns; i++)
|
|
str_append (&s, marker_char);
|
|
formatter_add (&f, "#a#s#r\n", ATTR_READ_MARKER, s.str);
|
|
str_free (&s);
|
|
}
|
|
else
|
|
formatter_add (&f, "#a-- -- -- ---\n", ATTR_READ_MARKER);
|
|
|
|
formatter_flush (&f, stream, flush_opts);
|
|
// Flush the trailing formatting reset item
|
|
fflush (stream);
|
|
formatter_free (&f);
|
|
}
|
|
|
|
static void
|
|
buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
// The prompt can take considerable time to redraw
|
|
CALL (ctx->input, hide);
|
|
|
|
// Simulate curses-like fullscreen buffers if the terminal allows it
|
|
if (g_terminal.initialized && clear_screen)
|
|
{
|
|
terminal_printer_fn printer = get_attribute_printer (stdout);
|
|
tputs (clear_screen, 1, printer);
|
|
if (cursor_to_ll)
|
|
tputs (cursor_to_ll, 1, printer);
|
|
else if (row_address)
|
|
tputs (tparm (row_address, g_terminal.lines - 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0), 1, printer);
|
|
else if (cursor_address)
|
|
tputs (tparm (cursor_address, g_terminal.lines - 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0), 1, printer);
|
|
fflush (stdout);
|
|
|
|
// We should update "last_displayed_msg_time" here just to be sure
|
|
// that the first date marker, if necessary, is shown, but in practice
|
|
// the value should always be from today when this function is called
|
|
}
|
|
else
|
|
{
|
|
char *buffer_name_localized =
|
|
iconv_xstrdup (ctx->term_from_utf8, buffer->name, -1, NULL);
|
|
print_status ("%s", buffer_name_localized);
|
|
free (buffer_name_localized);
|
|
}
|
|
|
|
// That is, minus the readline prompt (taking at least one line)
|
|
int display_limit = MAX (10, g_terminal.lines - 1);
|
|
int to_display = 0;
|
|
|
|
struct buffer_line *line;
|
|
for (line = buffer->lines_tail; line; line = line->prev)
|
|
{
|
|
to_display++;
|
|
if (buffer_line_will_show_up (buffer, line))
|
|
display_limit--;
|
|
if (!line->prev || display_limit <= 0)
|
|
break;
|
|
}
|
|
|
|
// Once we've found where we want to start with the backlog, print it
|
|
int until_marker = to_display - (int) buffer->new_messages_count;
|
|
for (; line; line = line->next)
|
|
{
|
|
if (until_marker-- == 0
|
|
&& buffer->new_messages_count != buffer->lines_count)
|
|
buffer_print_read_marker (ctx, stdout, 0);
|
|
buffer_line_display (ctx, buffer, line, 0);
|
|
}
|
|
|
|
// So that it is obvious if the last line in the buffer is not from today
|
|
buffer_update_time (ctx, time (NULL), stdout, 0);
|
|
|
|
refresh_prompt (ctx);
|
|
CALL (ctx->input, show);
|
|
}
|
|
|
|
static void
|
|
buffer_activate (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
if (ctx->current_buffer == buffer)
|
|
return;
|
|
|
|
// This is the only place where the unread messages marker
|
|
// and highlight indicator are reset
|
|
if (ctx->current_buffer)
|
|
{
|
|
ctx->current_buffer->new_messages_count = 0;
|
|
ctx->current_buffer->new_unimportant_count = 0;
|
|
ctx->current_buffer->highlighted = false;
|
|
}
|
|
|
|
buffer_print_backlog (ctx, buffer);
|
|
CALL_ (ctx->input, buffer_switch, buffer->input_data);
|
|
|
|
// Now at last we can switch the pointers
|
|
ctx->last_buffer = ctx->current_buffer;
|
|
ctx->current_buffer = buffer;
|
|
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void
|
|
buffer_merge (struct app_context *ctx,
|
|
struct buffer *buffer, struct buffer *merged)
|
|
{
|
|
// XXX: anything better to do? This situation is arguably rare and I'm
|
|
// not entirely sure what action to take.
|
|
log_full (ctx, NULL, buffer, BUFFER_LINE_STATUS,
|
|
"Buffer #s was merged into this buffer", merged->name);
|
|
|
|
// Find all lines from "merged" newer than the newest line in "buffer"
|
|
struct buffer_line *start = merged->lines;
|
|
if (buffer->lines_tail)
|
|
while (start && start->when < buffer->lines_tail->when)
|
|
start = start->next;
|
|
if (!start)
|
|
return;
|
|
|
|
// Count how many of them we have
|
|
size_t n = 0;
|
|
for (struct buffer_line *iter = start; iter; iter = iter->next)
|
|
n++;
|
|
struct buffer_line *tail = merged->lines_tail;
|
|
|
|
// Cut them from the original buffer
|
|
if (start == merged->lines)
|
|
merged->lines = NULL;
|
|
else if (start->prev)
|
|
start->prev->next = NULL;
|
|
merged->lines_tail = start->prev;
|
|
merged->lines_count -= n;
|
|
|
|
// And append them to current lines in the buffer
|
|
buffer->lines_tail->next = start;
|
|
start->prev = buffer->lines_tail;
|
|
buffer->lines_tail = tail;
|
|
buffer->lines_count += n;
|
|
|
|
log_full (ctx, NULL, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_SKIP_FILE,
|
|
"End of merged content");
|
|
}
|
|
|
|
static void
|
|
buffer_rename (struct app_context *ctx,
|
|
struct buffer *buffer, const char *new_name)
|
|
{
|
|
struct buffer *collision = str_map_find (&ctx->buffers_by_name, new_name);
|
|
if (collision == buffer)
|
|
return;
|
|
|
|
hard_assert (!collision);
|
|
|
|
str_map_set (&ctx->buffers_by_name, buffer->name, NULL);
|
|
str_map_set (&ctx->buffers_by_name, new_name, buffer);
|
|
|
|
cstr_set (&buffer->name, xstrdup (new_name));
|
|
|
|
buffer_close_log_file (buffer);
|
|
buffer_open_log_file (ctx, buffer);
|
|
|
|
// We might have renamed the current buffer
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static void
|
|
buffer_clear (struct buffer *buffer)
|
|
{
|
|
LIST_FOR_EACH (struct buffer_line, iter, buffer->lines)
|
|
buffer_line_destroy (iter);
|
|
|
|
buffer->lines = buffer->lines_tail = NULL;
|
|
buffer->lines_count = 0;
|
|
}
|
|
|
|
static struct buffer *
|
|
buffer_at_index (struct app_context *ctx, int n)
|
|
{
|
|
int i = 0;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
if (++i == n)
|
|
return iter;
|
|
return NULL;
|
|
}
|
|
|
|
static struct buffer *
|
|
buffer_next (struct app_context *ctx, int count)
|
|
{
|
|
struct buffer *new_buffer = ctx->current_buffer;
|
|
while (count-- > 0)
|
|
if (!(new_buffer = new_buffer->next))
|
|
new_buffer = ctx->buffers;
|
|
return new_buffer;
|
|
}
|
|
|
|
static struct buffer *
|
|
buffer_previous (struct app_context *ctx, int count)
|
|
{
|
|
struct buffer *new_buffer = ctx->current_buffer;
|
|
while (count-- > 0)
|
|
if (!(new_buffer = new_buffer->prev))
|
|
new_buffer = ctx->buffers_tail;
|
|
return new_buffer;
|
|
}
|
|
|
|
static bool
|
|
buffer_goto (struct app_context *ctx, int n)
|
|
{
|
|
struct buffer *buffer = buffer_at_index (ctx, n);
|
|
if (!buffer)
|
|
return false;
|
|
|
|
buffer_activate (ctx, buffer);
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
buffer_count (struct app_context *ctx)
|
|
{
|
|
int total = 0;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
total++;
|
|
return total;
|
|
}
|
|
|
|
static void
|
|
buffer_move (struct app_context *ctx, struct buffer *buffer, int n)
|
|
{
|
|
hard_assert (n >= 1 && n <= buffer_count (ctx));
|
|
LIST_UNLINK_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer);
|
|
|
|
struct buffer *following = ctx->buffers;
|
|
while (--n && following)
|
|
following = following->next;
|
|
|
|
LIST_INSERT_WITH_TAIL (ctx->buffers, ctx->buffers_tail, buffer, following);
|
|
refresh_prompt (ctx);
|
|
}
|
|
|
|
static int
|
|
buffer_get_index (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
int index = 1;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
{
|
|
if (iter == buffer)
|
|
return index;
|
|
index++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
buffer_remove_safe (struct app_context *ctx, struct buffer *buffer)
|
|
{
|
|
if (buffer == ctx->current_buffer)
|
|
buffer_activate (ctx, ctx->last_buffer
|
|
? ctx->last_buffer
|
|
: buffer_next (ctx, 1));
|
|
buffer_remove (ctx, buffer);
|
|
}
|
|
|
|
static void
|
|
init_global_buffer (struct app_context *ctx)
|
|
{
|
|
struct buffer *global = ctx->global_buffer = buffer_new (ctx->input);
|
|
global->type = BUFFER_GLOBAL;
|
|
global->name = xstrdup (PROGRAM_NAME);
|
|
|
|
buffer_add (ctx, global);
|
|
buffer_activate (ctx, global);
|
|
}
|
|
|
|
// --- Users, channels ---------------------------------------------------------
|
|
|
|
static void
|
|
irc_user_on_destroy (void *object, void *user_data)
|
|
{
|
|
struct user *user = object;
|
|
struct server *s = user_data;
|
|
if (!s->rehashing)
|
|
str_map_set (&s->irc_users, user->nickname, NULL);
|
|
}
|
|
|
|
static struct user *
|
|
irc_make_user (struct server *s, char *nickname)
|
|
{
|
|
hard_assert (!str_map_find (&s->irc_users, nickname));
|
|
|
|
struct user *user = user_new (nickname);
|
|
(void) user_weak_ref (user, irc_user_on_destroy, s);
|
|
str_map_set (&s->irc_users, user->nickname, user);
|
|
return user;
|
|
}
|
|
|
|
struct user *
|
|
irc_get_or_make_user (struct server *s, const char *nickname)
|
|
{
|
|
struct user *user = str_map_find (&s->irc_users, nickname);
|
|
if (user)
|
|
return user_ref (user);
|
|
return irc_make_user (s, xstrdup (nickname));
|
|
}
|
|
|
|
static struct buffer *
|
|
irc_get_or_make_user_buffer (struct server *s, const char *nickname)
|
|
{
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, nickname);
|
|
if (buffer)
|
|
return buffer;
|
|
|
|
struct user *user = irc_get_or_make_user (s, nickname);
|
|
|
|
// Open a new buffer for the user
|
|
buffer = buffer_new (s->ctx->input);
|
|
buffer->type = BUFFER_PM;
|
|
buffer->name = xstrdup_printf ("%s.%s", s->name, nickname);
|
|
buffer->server = s;
|
|
buffer->user = user;
|
|
str_map_set (&s->irc_buffer_map, user->nickname, buffer);
|
|
|
|
buffer_add (s->ctx, buffer);
|
|
return buffer;
|
|
}
|
|
|
|
static void
|
|
irc_get_channel_user_prefix (struct server *s,
|
|
struct channel_user *channel_user, struct str *output)
|
|
{
|
|
if (s->ctx->show_all_prefixes)
|
|
str_append (output, channel_user->prefixes);
|
|
else if (channel_user->prefixes[0])
|
|
str_append_c (output, channel_user->prefixes[0]);
|
|
}
|
|
|
|
static bool
|
|
irc_channel_is_joined (struct channel *channel)
|
|
{
|
|
// TODO: find a better way of checking if we're on a channel
|
|
return !!channel->users_len;
|
|
}
|
|
|
|
// Note that this eats the user reference
|
|
static void
|
|
irc_channel_link_user (struct channel *channel, struct user *user,
|
|
const char *prefixes)
|
|
{
|
|
struct user_channel *user_channel = user_channel_new (channel);
|
|
LIST_PREPEND (user->channels, user_channel);
|
|
|
|
struct channel_user *channel_user = channel_user_new (user, prefixes);
|
|
LIST_PREPEND (channel->users, channel_user);
|
|
channel->users_len++;
|
|
}
|
|
|
|
static void
|
|
irc_channel_unlink_user
|
|
(struct channel *channel, struct channel_user *channel_user)
|
|
{
|
|
// First destroy the user's weak references to the channel
|
|
struct user *user = channel_user->user;
|
|
LIST_FOR_EACH (struct user_channel, iter, user->channels)
|
|
if (iter->channel == channel)
|
|
{
|
|
LIST_UNLINK (user->channels, iter);
|
|
user_channel_destroy (iter);
|
|
}
|
|
|
|
// Then just unlink the user from the channel
|
|
LIST_UNLINK (channel->users, channel_user);
|
|
channel_user_destroy (channel_user);
|
|
channel->users_len--;
|
|
}
|
|
|
|
static void
|
|
irc_channel_on_destroy (void *object, void *user_data)
|
|
{
|
|
struct channel *channel = object;
|
|
struct server *s = user_data;
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
irc_channel_unlink_user (channel, iter);
|
|
if (!s->rehashing)
|
|
str_map_set (&s->irc_channels, channel->name, NULL);
|
|
}
|
|
|
|
static struct channel *
|
|
irc_make_channel (struct server *s, char *name)
|
|
{
|
|
hard_assert (!str_map_find (&s->irc_channels, name));
|
|
|
|
struct channel *channel = channel_new (name, NULL);
|
|
(void) channel_weak_ref (channel, irc_channel_on_destroy, s);
|
|
str_map_set (&s->irc_channels, channel->name, channel);
|
|
return channel;
|
|
}
|
|
|
|
static struct channel_user *
|
|
irc_channel_get_user (struct channel *channel, struct user *user)
|
|
{
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
if (iter->user == user)
|
|
return iter;
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
irc_remove_user_from_channel (struct user *user, struct channel *channel)
|
|
{
|
|
struct channel_user *channel_user = irc_channel_get_user (channel, user);
|
|
if (channel_user)
|
|
irc_channel_unlink_user (channel, channel_user);
|
|
}
|
|
|
|
static void
|
|
irc_left_channel (struct channel *channel)
|
|
{
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
irc_channel_unlink_user (channel, iter);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
remove_conflicting_buffer (struct server *s, struct buffer *buffer)
|
|
{
|
|
log_server_status (s, s->buffer,
|
|
"Removed buffer #s because of casemapping conflict", buffer->name);
|
|
if (s->ctx->current_buffer == buffer)
|
|
buffer_activate (s->ctx, s->buffer);
|
|
buffer_remove (s->ctx, buffer);
|
|
}
|
|
|
|
static void
|
|
irc_try_readd_user (struct server *s,
|
|
struct user *user, struct buffer *buffer)
|
|
{
|
|
if (str_map_find (&s->irc_users, user->nickname))
|
|
{
|
|
// Remove user from all channels and destroy any PM buffer
|
|
user_ref (user);
|
|
LIST_FOR_EACH (struct user_channel, iter, user->channels)
|
|
irc_remove_user_from_channel (user, iter->channel);
|
|
if (buffer)
|
|
remove_conflicting_buffer (s, buffer);
|
|
user_unref (user);
|
|
}
|
|
else
|
|
{
|
|
str_map_set (&s->irc_users, user->nickname, user);
|
|
str_map_set (&s->irc_buffer_map, user->nickname, buffer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_try_readd_channel (struct server *s,
|
|
struct channel *channel, struct buffer *buffer)
|
|
{
|
|
if (str_map_find (&s->irc_channels, channel->name))
|
|
{
|
|
// Remove all users from channel and destroy any channel buffer
|
|
channel_ref (channel);
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
irc_channel_unlink_user (channel, iter);
|
|
if (buffer)
|
|
remove_conflicting_buffer (s, buffer);
|
|
channel_unref (channel);
|
|
}
|
|
else
|
|
{
|
|
str_map_set (&s->irc_channels, channel->name, channel);
|
|
str_map_set (&s->irc_buffer_map, channel->name, buffer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_rehash_and_fix_conflicts (struct server *s)
|
|
{
|
|
// Save the old maps and initialize new ones
|
|
struct str_map old_users = s->irc_users;
|
|
struct str_map old_channels = s->irc_channels;
|
|
struct str_map old_buffer_map = s->irc_buffer_map;
|
|
|
|
s->irc_users = str_map_make (NULL);
|
|
s->irc_channels = str_map_make (NULL);
|
|
s->irc_buffer_map = str_map_make (NULL);
|
|
|
|
s->irc_users .key_xfrm = s->irc_strxfrm;
|
|
s->irc_channels .key_xfrm = s->irc_strxfrm;
|
|
s->irc_buffer_map.key_xfrm = s->irc_strxfrm;
|
|
|
|
// Prevent channels and users from unsetting themselves
|
|
// from server maps upon removing the last reference to them
|
|
s->rehashing = true;
|
|
|
|
// XXX: to be perfectly sure, we should also check
|
|
// whether any users collide with channels and vice versa
|
|
|
|
// Our own user always takes priority, add him first
|
|
if (s->irc_user)
|
|
irc_try_readd_user (s, s->irc_user,
|
|
str_map_find (&old_buffer_map, s->irc_user->nickname));
|
|
|
|
struct str_map_iter iter;
|
|
struct user *user;
|
|
struct channel *channel;
|
|
|
|
iter = str_map_iter_make (&old_users);
|
|
while ((user = str_map_iter_next (&iter)))
|
|
irc_try_readd_user (s, user,
|
|
str_map_find (&old_buffer_map, user->nickname));
|
|
|
|
iter = str_map_iter_make (&old_channels);
|
|
while ((channel = str_map_iter_next (&iter)))
|
|
irc_try_readd_channel (s, channel,
|
|
str_map_find (&old_buffer_map, channel->name));
|
|
|
|
// Hopefully we've either moved or destroyed all the old content
|
|
s->rehashing = false;
|
|
|
|
str_map_free (&old_users);
|
|
str_map_free (&old_channels);
|
|
str_map_free (&old_buffer_map);
|
|
}
|
|
|
|
static void
|
|
irc_set_casemapping (struct server *s,
|
|
irc_tolower_fn tolower, irc_strxfrm_fn strxfrm)
|
|
{
|
|
if (tolower == s->irc_tolower
|
|
&& strxfrm == s->irc_strxfrm)
|
|
return;
|
|
|
|
s->irc_tolower = tolower;
|
|
s->irc_strxfrm = strxfrm;
|
|
|
|
// Ideally we would never have to do this but I can't think of a workaround
|
|
irc_rehash_and_fix_conflicts (s);
|
|
}
|
|
|
|
// --- Core functionality ------------------------------------------------------
|
|
|
|
static bool
|
|
irc_is_connected (struct server *s)
|
|
{
|
|
return s->state != IRC_DISCONNECTED && s->state != IRC_CONNECTING;
|
|
}
|
|
|
|
static void
|
|
irc_update_poller (struct server *s, const struct pollfd *pfd)
|
|
{
|
|
int new_events = s->transport->get_poll_events (s);
|
|
hard_assert (new_events != 0);
|
|
|
|
if (!pfd || pfd->events != new_events)
|
|
poller_fd_set (&s->socket_event, new_events);
|
|
}
|
|
|
|
static void
|
|
irc_cancel_timers (struct server *s)
|
|
{
|
|
poller_timer_reset (&s->timeout_tmr);
|
|
poller_timer_reset (&s->ping_tmr);
|
|
poller_timer_reset (&s->reconnect_tmr);
|
|
poller_timer_reset (&s->autojoin_tmr);
|
|
}
|
|
|
|
static void
|
|
irc_reset_connection_timeouts (struct server *s)
|
|
{
|
|
poller_timer_set (&s->timeout_tmr, 3 * 60 * 1000);
|
|
poller_timer_set (&s->ping_tmr, (3 * 60 + 30) * 1000);
|
|
poller_timer_reset (&s->reconnect_tmr);
|
|
}
|
|
|
|
static int64_t
|
|
irc_get_reconnect_delay (struct server *s)
|
|
{
|
|
int64_t delay = get_config_integer (s->config, "reconnect_delay");
|
|
int64_t delay_factor = get_config_integer (s->ctx->config.root,
|
|
"behaviour.reconnect_delay_growing");
|
|
for (unsigned i = 0; i < s->reconnect_attempt; i++)
|
|
{
|
|
if (delay_factor && delay > INT64_MAX / delay_factor)
|
|
break;
|
|
delay *= delay_factor;
|
|
}
|
|
|
|
int64_t delay_max = get_config_integer (s->ctx->config.root,
|
|
"behaviour.reconnect_delay_max");
|
|
return MIN (delay, delay_max);
|
|
}
|
|
|
|
static void
|
|
irc_queue_reconnect (struct server *s)
|
|
{
|
|
// As long as the user wants us to, that is
|
|
if (!get_config_boolean (s->config, "reconnect"))
|
|
return;
|
|
|
|
// XXX: maybe add a state for when a connect is queued?
|
|
hard_assert (s->state == IRC_DISCONNECTED);
|
|
|
|
int64_t delay = irc_get_reconnect_delay (s);
|
|
s->reconnect_attempt++;
|
|
|
|
log_server_status (s, s->buffer,
|
|
"Trying to reconnect in #&s seconds...",
|
|
xstrdup_printf ("%" PRId64, delay));
|
|
poller_timer_set (&s->reconnect_tmr, delay * 1000);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void irc_process_sent_message
|
|
(const struct irc_message *msg, struct server *s);
|
|
static void irc_send (struct server *s,
|
|
const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
|
|
|
|
static void
|
|
irc_send (struct server *s, const char *format, ...)
|
|
{
|
|
if (!soft_assert (irc_is_connected (s)))
|
|
{
|
|
log_server_debug (s, "sending a message to a dead server connection");
|
|
return;
|
|
}
|
|
|
|
if (s->state == IRC_CLOSING
|
|
|| s->state == IRC_HALF_CLOSED)
|
|
return;
|
|
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
struct str str = str_make ();
|
|
str_append_vprintf (&str, format, ap);
|
|
va_end (ap);
|
|
|
|
log_server_debug (s, "#a<< \"#S\"#r", ATTR_PART, str.str);
|
|
|
|
struct irc_message msg;
|
|
irc_parse_message (&msg, str.str);
|
|
irc_process_sent_message (&msg, s);
|
|
irc_free_message (&msg);
|
|
|
|
str_append_str (&s->write_buffer, &str);
|
|
str_free (&str);
|
|
str_append (&s->write_buffer, "\r\n");
|
|
irc_update_poller (s, NULL);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_real_shutdown (struct server *s)
|
|
{
|
|
hard_assert (irc_is_connected (s) && s->state != IRC_HALF_CLOSED);
|
|
|
|
if (s->transport
|
|
&& s->transport->in_before_shutdown)
|
|
s->transport->in_before_shutdown (s);
|
|
|
|
while (shutdown (s->socket, SHUT_WR) == -1)
|
|
// XXX: we get ENOTCONN with OpenSSL (not plain) when a localhost
|
|
// server is aborted, why? strace says read 0, write 31, shutdown -1.
|
|
if (!soft_assert (errno == EINTR))
|
|
break;
|
|
|
|
s->state = IRC_HALF_CLOSED;
|
|
}
|
|
|
|
static void
|
|
irc_shutdown (struct server *s)
|
|
{
|
|
if (s->state == IRC_CLOSING
|
|
|| s->state == IRC_HALF_CLOSED)
|
|
return;
|
|
|
|
// TODO: set a timer to cut the connection if we don't receive an EOF
|
|
s->state = IRC_CLOSING;
|
|
|
|
// Either there's still some data in the write buffer and we wait
|
|
// until they're sent, or we send an EOF to the server right away
|
|
if (!s->write_buffer.len)
|
|
irc_real_shutdown (s);
|
|
}
|
|
|
|
static void
|
|
irc_destroy_connector (struct server *s)
|
|
{
|
|
if (s->connector)
|
|
connector_free (s->connector);
|
|
free (s->connector);
|
|
s->connector = NULL;
|
|
|
|
if (s->socks_conn)
|
|
socks_connector_free (s->socks_conn);
|
|
free (s->socks_conn);
|
|
s->socks_conn = NULL;
|
|
|
|
// Not connecting anymore
|
|
s->state = IRC_DISCONNECTED;
|
|
}
|
|
|
|
static void
|
|
try_finish_quit (struct app_context *ctx)
|
|
{
|
|
if (!ctx->quitting)
|
|
return;
|
|
|
|
bool disconnected_all = true;
|
|
struct str_map_iter iter = str_map_iter_make (&ctx->servers);
|
|
struct server *s;
|
|
while ((s = str_map_iter_next (&iter)))
|
|
if (irc_is_connected (s))
|
|
disconnected_all = false;
|
|
|
|
if (disconnected_all)
|
|
ctx->polling = false;
|
|
}
|
|
|
|
static void
|
|
irc_destroy_transport (struct server *s)
|
|
{
|
|
if (s->transport
|
|
&& s->transport->cleanup)
|
|
s->transport->cleanup (s);
|
|
s->transport = NULL;
|
|
|
|
poller_fd_reset (&s->socket_event);
|
|
xclose (s->socket);
|
|
s->socket = -1;
|
|
s->state = IRC_DISCONNECTED;
|
|
|
|
str_reset (&s->read_buffer);
|
|
str_reset (&s->write_buffer);
|
|
}
|
|
|
|
static void
|
|
irc_destroy_state (struct server *s)
|
|
{
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
|
|
struct channel *channel;
|
|
while ((channel = str_map_iter_next (&iter)))
|
|
irc_left_channel (channel);
|
|
|
|
if (s->irc_user)
|
|
{
|
|
user_unref (s->irc_user);
|
|
s->irc_user = NULL;
|
|
}
|
|
|
|
str_reset (&s->irc_user_mode);
|
|
cstr_set (&s->irc_user_host, NULL);
|
|
|
|
s->cap_echo_message = false;
|
|
|
|
// Need to call this before server_init_specifics()
|
|
irc_set_casemapping (s, irc_tolower, irc_strxfrm);
|
|
|
|
server_free_specifics (s);
|
|
server_init_specifics (s);
|
|
}
|
|
|
|
static void
|
|
irc_disconnect (struct server *s)
|
|
{
|
|
hard_assert (irc_is_connected (s));
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
|
|
struct buffer *buffer;
|
|
while ((buffer = str_map_iter_next (&iter)))
|
|
log_server (s, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_UNIMPORTANT,
|
|
"Disconnected from server");
|
|
|
|
irc_cancel_timers (s);
|
|
irc_destroy_transport (s);
|
|
irc_destroy_state (s);
|
|
|
|
// Take any relevant actions
|
|
if (s->ctx->quitting)
|
|
try_finish_quit (s->ctx);
|
|
else if (s->manual_disconnect)
|
|
s->manual_disconnect = false;
|
|
else
|
|
{
|
|
s->reconnect_attempt = 0;
|
|
irc_queue_reconnect (s);
|
|
}
|
|
|
|
refresh_prompt (s->ctx);
|
|
}
|
|
|
|
static void
|
|
irc_initiate_disconnect (struct server *s, const char *reason)
|
|
{
|
|
hard_assert (irc_is_connected (s));
|
|
|
|
// It can take a very long time for sending QUIT to take effect
|
|
if (s->manual_disconnect)
|
|
{
|
|
log_server_error (s, s->buffer, "#s: #s", "Disconnected from server",
|
|
"connection torn down early per user request");
|
|
irc_disconnect (s);
|
|
return;
|
|
}
|
|
|
|
if (reason)
|
|
irc_send (s, "QUIT :%s", reason);
|
|
else
|
|
// TODO: make the default QUIT message customizable
|
|
// -> global/per server/both?
|
|
// -> implement IRC output hooks for plugins?
|
|
irc_send (s, "QUIT :%s", PROGRAM_NAME " " PROGRAM_VERSION);
|
|
|
|
s->manual_disconnect = true;
|
|
irc_shutdown (s);
|
|
}
|
|
|
|
static void
|
|
initiate_quit (struct app_context *ctx, const char *message)
|
|
{
|
|
log_global_status (ctx, "Shutting down");
|
|
|
|
// Hide the user interface
|
|
CALL (ctx->input, hide);
|
|
|
|
// Initiate a connection close
|
|
struct str_map_iter iter = str_map_iter_make (&ctx->servers);
|
|
struct server *s;
|
|
while ((s = str_map_iter_next (&iter)))
|
|
{
|
|
// There may be a timer set to reconnect to the server
|
|
poller_timer_reset (&s->reconnect_tmr);
|
|
|
|
if (irc_is_connected (s))
|
|
irc_initiate_disconnect (s, message);
|
|
else if (s->state == IRC_CONNECTING)
|
|
irc_destroy_connector (s);
|
|
}
|
|
|
|
ctx->quitting = true;
|
|
try_finish_quit (ctx);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
on_irc_ping_timeout (void *user_data)
|
|
{
|
|
struct server *s = user_data;
|
|
log_server_error (s, s->buffer,
|
|
"#s: #s", "Disconnected from server", "timeout");
|
|
irc_disconnect (s);
|
|
}
|
|
|
|
static void
|
|
on_irc_timeout (void *user_data)
|
|
{
|
|
// Provoke a response from the server
|
|
struct server *s = user_data;
|
|
irc_send (s, "PING :%" PRIi64, (int64_t) time (NULL));
|
|
}
|
|
|
|
static void
|
|
on_irc_autojoin_timeout (void *user_data)
|
|
{
|
|
struct server *s = user_data;
|
|
|
|
// Since we may not have information from RPL_ISUPPORT yet,
|
|
// it's our safest bet to send the channels one at a time
|
|
|
|
struct str_map joins_sent = str_map_make (NULL);
|
|
|
|
// We don't know the casemapping yet either, however ASCII should do
|
|
joins_sent.key_xfrm = tolower_ascii_strxfrm;
|
|
|
|
// First join autojoin channels in their given order
|
|
const char *autojoin = get_config_string (s->config, "autojoin");
|
|
if (autojoin)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (autojoin, ",", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
irc_send (s, "JOIN %s", v.vector[i]);
|
|
str_map_set (&joins_sent, v.vector[i], (void *) 1);
|
|
}
|
|
strv_free (&v);
|
|
}
|
|
|
|
// Then also rejoin any channels from the last disconnect
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
|
|
struct channel *channel;
|
|
while ((channel = str_map_iter_next (&iter)))
|
|
{
|
|
struct str target = str_make ();
|
|
str_append (&target, channel->name);
|
|
|
|
const char *key;
|
|
if ((key = str_map_find (&channel->param_modes, "k")))
|
|
str_append_printf (&target, " %s", key);
|
|
|
|
// When a channel is both autojoined and rejoined, both keys are tried
|
|
if (!channel->left_manually
|
|
&& !str_map_find (&joins_sent, target.str))
|
|
irc_send (s, "JOIN %s", target.str);
|
|
str_free (&target);
|
|
}
|
|
|
|
str_map_free (&joins_sent);
|
|
}
|
|
|
|
// --- Server I/O --------------------------------------------------------------
|
|
|
|
static char *
|
|
irc_process_hooks (struct server *s, char *input)
|
|
{
|
|
log_server_debug (s, "#a>> \"#S\"#r", ATTR_JOIN, input);
|
|
uint64_t hash = siphash_wrapper (input, strlen (input));
|
|
LIST_FOR_EACH (struct hook, iter, s->ctx->irc_hooks)
|
|
{
|
|
struct irc_hook *hook = (struct irc_hook *) iter;
|
|
if (!(input = hook->filter (hook, s, input)))
|
|
{
|
|
log_server_debug (s, "#a>= #s#r", ATTR_JOIN, "thrown away by hook");
|
|
return NULL;
|
|
}
|
|
|
|
// The old input may get freed, so we compare against a hash of it
|
|
uint64_t new_hash = siphash_wrapper (input, strlen (input));
|
|
if (new_hash != hash)
|
|
log_server_debug (s, "#a>= \"#S\"#r", ATTR_JOIN, input);
|
|
hash = new_hash;
|
|
}
|
|
return input;
|
|
}
|
|
|
|
static void irc_process_message
|
|
(const struct irc_message *msg, struct server *s);
|
|
|
|
static void
|
|
irc_process_buffer_custom (struct server *s, struct str *buf)
|
|
{
|
|
const char *start = buf->str, *end = start + buf->len;
|
|
for (const char *p = start; p + 1 < end; p++)
|
|
{
|
|
// Split the input on newlines
|
|
if (p[0] != '\r' || p[1] != '\n')
|
|
continue;
|
|
|
|
char *processed = irc_process_hooks (s, xstrndup (start, p - start));
|
|
start = p + 2;
|
|
if (!processed)
|
|
continue;
|
|
|
|
struct irc_message msg;
|
|
irc_parse_message (&msg, processed);
|
|
irc_process_message (&msg, s);
|
|
irc_free_message (&msg);
|
|
|
|
free (processed);
|
|
}
|
|
str_remove_slice (buf, 0, start - buf->str);
|
|
}
|
|
|
|
static enum socket_io_result
|
|
irc_try_read (struct server *s)
|
|
{
|
|
enum socket_io_result result = s->transport->try_read (s);
|
|
if (s->read_buffer.len >= (1 << 20))
|
|
{
|
|
// XXX: this is stupid; if anything, count it in dependence of time;
|
|
// we could make transport_tls_try_read() limit the immediate amount
|
|
// of data read like socket_io_try_read() does and remove this check
|
|
log_server_error (s, s->buffer,
|
|
"The IRC server seems to spew out data frantically");
|
|
return SOCKET_IO_ERROR;
|
|
}
|
|
if (s->read_buffer.len)
|
|
irc_process_buffer_custom (s, &s->read_buffer);
|
|
return result;
|
|
}
|
|
|
|
static enum socket_io_result
|
|
irc_try_write (struct server *s)
|
|
{
|
|
enum socket_io_result result = s->transport->try_write (s);
|
|
if (result == SOCKET_IO_OK)
|
|
{
|
|
// If we're flushing the write buffer and our job is complete, we send
|
|
// an EOF to the server, changing the state to IRC_HALF_CLOSED
|
|
if (s->state == IRC_CLOSING && !s->write_buffer.len)
|
|
irc_real_shutdown (s);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
irc_try_read_write (struct server *s)
|
|
{
|
|
enum socket_io_result read_result;
|
|
enum socket_io_result write_result;
|
|
if ((read_result = irc_try_read (s)) == SOCKET_IO_ERROR
|
|
|| (write_result = irc_try_write (s)) == SOCKET_IO_ERROR)
|
|
{
|
|
log_server_error (s, s->buffer, "Server connection failed");
|
|
return false;
|
|
}
|
|
|
|
// FIXME: this may probably fire multiple times when we're flushing,
|
|
// we should probably store a flag next to the state
|
|
if (read_result == SOCKET_IO_EOF
|
|
|| write_result == SOCKET_IO_EOF)
|
|
log_server_error (s, s->buffer, "Server closed the connection");
|
|
|
|
// If the write needs to read and we receive an EOF, we can't flush
|
|
if (write_result == SOCKET_IO_EOF)
|
|
return false;
|
|
|
|
if (read_result == SOCKET_IO_EOF)
|
|
{
|
|
// Eventually initiate shutdown to flush the write buffer
|
|
irc_shutdown (s);
|
|
|
|
// If there's nothing to write, we can disconnect now
|
|
if (s->state == IRC_HALF_CLOSED)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
on_irc_ready (const struct pollfd *pfd, struct server *s)
|
|
{
|
|
if (irc_try_read_write (s))
|
|
{
|
|
// XXX: shouldn't we rather wait for PONG messages?
|
|
irc_reset_connection_timeouts (s);
|
|
irc_update_poller (s, pfd);
|
|
}
|
|
else
|
|
// We don't want to keep the socket anymore
|
|
irc_disconnect (s);
|
|
}
|
|
|
|
// --- Plain transport ---------------------------------------------------------
|
|
|
|
static enum socket_io_result
|
|
transport_plain_try_read (struct server *s)
|
|
{
|
|
enum socket_io_result result =
|
|
socket_io_try_read (s->socket, &s->read_buffer);
|
|
if (result == SOCKET_IO_ERROR)
|
|
print_debug ("%s: %s", __func__, strerror (errno));
|
|
return result;
|
|
}
|
|
|
|
static enum socket_io_result
|
|
transport_plain_try_write (struct server *s)
|
|
{
|
|
enum socket_io_result result =
|
|
socket_io_try_write (s->socket, &s->write_buffer);
|
|
if (result == SOCKET_IO_ERROR)
|
|
print_debug ("%s: %s", __func__, strerror (errno));
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
transport_plain_get_poll_events (struct server *s)
|
|
{
|
|
int events = POLLIN;
|
|
if (s->write_buffer.len)
|
|
events |= POLLOUT;
|
|
return events;
|
|
}
|
|
|
|
static struct transport g_transport_plain =
|
|
{
|
|
.try_read = transport_plain_try_read,
|
|
.try_write = transport_plain_try_write,
|
|
.get_poll_events = transport_plain_get_poll_events,
|
|
};
|
|
|
|
// --- TLS transport -----------------------------------------------------------
|
|
|
|
struct transport_tls_data
|
|
{
|
|
SSL_CTX *ssl_ctx; ///< SSL context
|
|
SSL *ssl; ///< SSL connection
|
|
bool ssl_rx_want_tx; ///< SSL_read() wants to write
|
|
bool ssl_tx_want_rx; ///< SSL_write() wants to read
|
|
};
|
|
|
|
/// The index in SSL_CTX user data for a reference to the server
|
|
static int g_transport_tls_data_index = -1;
|
|
|
|
static int
|
|
transport_tls_verify_callback (int preverify_ok, X509_STORE_CTX *ctx)
|
|
{
|
|
SSL *ssl = X509_STORE_CTX_get_ex_data
|
|
(ctx, SSL_get_ex_data_X509_STORE_CTX_idx ());
|
|
struct server *s = SSL_CTX_get_ex_data
|
|
(SSL_get_SSL_CTX (ssl), g_transport_tls_data_index);
|
|
|
|
X509 *cert = X509_STORE_CTX_get_current_cert (ctx);
|
|
char *subject = X509_NAME_oneline (X509_get_subject_name (cert), NULL, 0);
|
|
char *issuer = X509_NAME_oneline (X509_get_issuer_name (cert), NULL, 0);
|
|
|
|
log_server_status (s, s->buffer, "Certificate subject: #s", subject);
|
|
log_server_status (s, s->buffer, "Certificate issuer: #s", issuer);
|
|
|
|
if (!preverify_ok)
|
|
{
|
|
log_server_error (s, s->buffer,
|
|
"Certificate verification failed: #s",
|
|
X509_verify_cert_error_string (X509_STORE_CTX_get_error (ctx)));
|
|
}
|
|
|
|
free (subject);
|
|
free (issuer);
|
|
return preverify_ok;
|
|
}
|
|
|
|
static bool
|
|
transport_tls_init_ca_set (SSL_CTX *ssl_ctx, const char *file, const char *path,
|
|
struct error **e)
|
|
{
|
|
ERR_clear_error ();
|
|
|
|
if (file || path)
|
|
{
|
|
if (SSL_CTX_load_verify_locations (ssl_ctx, file, path))
|
|
return true;
|
|
|
|
return error_set (e, "%s: %s",
|
|
"Failed to set locations for the CA certificate bundle",
|
|
ERR_reason_error_string (ERR_get_error ()));
|
|
}
|
|
|
|
if (!SSL_CTX_set_default_verify_paths (ssl_ctx))
|
|
return error_set (e, "%s: %s",
|
|
"Couldn't load the default CA certificate bundle",
|
|
ERR_reason_error_string (ERR_get_error ()));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
transport_tls_init_ca (struct server *s, SSL_CTX *ssl_ctx, struct error **e)
|
|
{
|
|
const char *ca_file = get_config_string (s->config, "tls_ca_file");
|
|
const char *ca_path = get_config_string (s->config, "tls_ca_path");
|
|
|
|
char *full_ca_file = ca_file
|
|
? resolve_filename (ca_file, resolve_relative_config_filename) : NULL;
|
|
char *full_ca_path = ca_path
|
|
? resolve_filename (ca_path, resolve_relative_config_filename) : NULL;
|
|
|
|
bool ok = false;
|
|
if (ca_file && !full_ca_file)
|
|
error_set (e, "Couldn't find the CA bundle file");
|
|
else if (ca_path && !full_ca_path)
|
|
error_set (e, "Couldn't find the CA bundle path");
|
|
else
|
|
ok = transport_tls_init_ca_set (ssl_ctx, full_ca_file, full_ca_path, e);
|
|
|
|
free (full_ca_file);
|
|
free (full_ca_path);
|
|
return ok;
|
|
}
|
|
|
|
static bool
|
|
transport_tls_init_ctx (struct server *s, SSL_CTX *ssl_ctx, struct error **e)
|
|
{
|
|
bool verify = get_config_boolean (s->config, "tls_verify");
|
|
SSL_CTX_set_verify (ssl_ctx, verify ? SSL_VERIFY_PEER : SSL_VERIFY_NONE,
|
|
transport_tls_verify_callback);
|
|
|
|
if (g_transport_tls_data_index == -1)
|
|
g_transport_tls_data_index =
|
|
SSL_CTX_get_ex_new_index (0, "server", NULL, NULL, NULL);
|
|
SSL_CTX_set_ex_data (ssl_ctx, g_transport_tls_data_index, s);
|
|
|
|
const char *ciphers = get_config_string (s->config, "tls_ciphers");
|
|
if (ciphers && !SSL_CTX_set_cipher_list (ssl_ctx, ciphers))
|
|
log_server_error (s, s->buffer,
|
|
"Failed to select any cipher from the cipher list");
|
|
SSL_CTX_set_mode (ssl_ctx,
|
|
SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
|
|
|
|
// Disable deprecated protocols (see RFC 7568)
|
|
SSL_CTX_set_options (ssl_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
|
|
|
|
// This seems to consume considerable amounts of memory while not giving
|
|
// that much in return; in addition to that, I'm not sure about security
|
|
// (see RFC 7525, section 3.3)
|
|
#ifdef SSL_OP_NO_COMPRESSION
|
|
SSL_CTX_set_options (ssl_ctx, SSL_OP_NO_COMPRESSION);
|
|
#endif // SSL_OP_NO_COMPRESSION
|
|
|
|
struct error *error = NULL;
|
|
if (!transport_tls_init_ca (s, ssl_ctx, &error))
|
|
{
|
|
if (verify)
|
|
{
|
|
error_propagate (e, error);
|
|
return false;
|
|
}
|
|
|
|
// Just inform the user if we're not actually verifying
|
|
log_server_error (s, s->buffer, "#s", error->message);
|
|
error_free (error);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
transport_tls_init_cert (struct server *s, SSL *ssl, struct error **e)
|
|
{
|
|
const char *tls_cert = get_config_string (s->config, "tls_cert");
|
|
if (!tls_cert)
|
|
return true;
|
|
|
|
ERR_clear_error ();
|
|
|
|
bool result = false;
|
|
char *path = resolve_filename (tls_cert, resolve_relative_config_filename);
|
|
if (!path)
|
|
error_set (e, "%s: %s", "Cannot open file", tls_cert);
|
|
// XXX: perhaps we should read the file ourselves for better messages
|
|
else if (!SSL_use_certificate_file (ssl, path, SSL_FILETYPE_PEM)
|
|
|| !SSL_use_PrivateKey_file (ssl, path, SSL_FILETYPE_PEM))
|
|
error_set (e, "%s: %s", "Setting the TLS client certificate failed",
|
|
ERR_reason_error_string (ERR_get_error ()));
|
|
else
|
|
result = true;
|
|
free (path);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
transport_tls_init (struct server *s, const char *hostname, struct error **e)
|
|
{
|
|
ERR_clear_error ();
|
|
|
|
struct error *error = NULL;
|
|
SSL_CTX *ssl_ctx = SSL_CTX_new (SSLv23_client_method ());
|
|
if (!ssl_ctx)
|
|
goto error_ssl_1;
|
|
if (!transport_tls_init_ctx (s, ssl_ctx, &error))
|
|
goto error_ssl_2;
|
|
|
|
SSL *ssl = SSL_new (ssl_ctx);
|
|
if (!ssl)
|
|
goto error_ssl_2;
|
|
|
|
if (!transport_tls_init_cert (s, ssl, &error))
|
|
{
|
|
// XXX: is this a reason to abort the connection?
|
|
log_server_error (s, s->buffer, "#s", error->message);
|
|
error_free (error);
|
|
error = NULL;
|
|
}
|
|
|
|
SSL_set_connect_state (ssl);
|
|
if (!SSL_set_fd (ssl, s->socket))
|
|
goto error_ssl_3;
|
|
|
|
// Enable SNI, FWIW; literal IP addresses aren't allowed
|
|
struct in6_addr dummy;
|
|
if (!inet_pton (AF_INET, hostname, &dummy)
|
|
&& !inet_pton (AF_INET6, hostname, &dummy))
|
|
SSL_set_tlsext_host_name (ssl, hostname);
|
|
|
|
struct transport_tls_data *data = xcalloc (1, sizeof *data);
|
|
data->ssl_ctx = ssl_ctx;
|
|
data->ssl = ssl;
|
|
|
|
// Forces a handshake even if neither side wants to transmit data
|
|
data->ssl_rx_want_tx = true;
|
|
|
|
s->transport_data = data;
|
|
return true;
|
|
|
|
error_ssl_3:
|
|
SSL_free (ssl);
|
|
error_ssl_2:
|
|
SSL_CTX_free (ssl_ctx);
|
|
error_ssl_1:
|
|
if (!error)
|
|
error_set (&error, "%s: %s", "Could not initialize TLS",
|
|
ERR_reason_error_string (ERR_get_error ()));
|
|
|
|
error_propagate (e, error);
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
transport_tls_cleanup (struct server *s)
|
|
{
|
|
struct transport_tls_data *data = s->transport_data;
|
|
if (data->ssl)
|
|
SSL_free (data->ssl);
|
|
if (data->ssl_ctx)
|
|
SSL_CTX_free (data->ssl_ctx);
|
|
free (data);
|
|
}
|
|
|
|
static enum socket_io_result
|
|
transport_tls_try_read (struct server *s)
|
|
{
|
|
struct transport_tls_data *data = s->transport_data;
|
|
if (data->ssl_tx_want_rx)
|
|
return SOCKET_IO_OK;
|
|
|
|
struct str *buf = &s->read_buffer;
|
|
data->ssl_rx_want_tx = false;
|
|
while (true)
|
|
{
|
|
ERR_clear_error ();
|
|
str_reserve (buf, 512);
|
|
int n_read = SSL_read (data->ssl, buf->str + buf->len,
|
|
buf->alloc - buf->len - 1 /* null byte */);
|
|
|
|
const char *error_info = NULL;
|
|
switch (xssl_get_error (data->ssl, n_read, &error_info))
|
|
{
|
|
case SSL_ERROR_NONE:
|
|
buf->str[buf->len += n_read] = '\0';
|
|
continue;
|
|
case SSL_ERROR_ZERO_RETURN:
|
|
return SOCKET_IO_EOF;
|
|
case SSL_ERROR_WANT_READ:
|
|
return SOCKET_IO_OK;
|
|
case SSL_ERROR_WANT_WRITE:
|
|
data->ssl_rx_want_tx = true;
|
|
return SOCKET_IO_OK;
|
|
case XSSL_ERROR_TRY_AGAIN:
|
|
continue;
|
|
default:
|
|
LOG_FUNC_FAILURE ("SSL_read", error_info);
|
|
return SOCKET_IO_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
static enum socket_io_result
|
|
transport_tls_try_write (struct server *s)
|
|
{
|
|
struct transport_tls_data *data = s->transport_data;
|
|
if (data->ssl_rx_want_tx)
|
|
return SOCKET_IO_OK;
|
|
|
|
struct str *buf = &s->write_buffer;
|
|
data->ssl_tx_want_rx = false;
|
|
while (buf->len)
|
|
{
|
|
ERR_clear_error ();
|
|
int n_written = SSL_write (data->ssl, buf->str, buf->len);
|
|
|
|
const char *error_info = NULL;
|
|
switch (xssl_get_error (data->ssl, n_written, &error_info))
|
|
{
|
|
case SSL_ERROR_NONE:
|
|
str_remove_slice (buf, 0, n_written);
|
|
continue;
|
|
case SSL_ERROR_ZERO_RETURN:
|
|
return SOCKET_IO_EOF;
|
|
case SSL_ERROR_WANT_WRITE:
|
|
return SOCKET_IO_OK;
|
|
case SSL_ERROR_WANT_READ:
|
|
data->ssl_tx_want_rx = true;
|
|
return SOCKET_IO_OK;
|
|
case XSSL_ERROR_TRY_AGAIN:
|
|
continue;
|
|
default:
|
|
LOG_FUNC_FAILURE ("SSL_write", error_info);
|
|
return SOCKET_IO_ERROR;
|
|
}
|
|
}
|
|
return SOCKET_IO_OK;
|
|
}
|
|
|
|
static int
|
|
transport_tls_get_poll_events (struct server *s)
|
|
{
|
|
struct transport_tls_data *data = s->transport_data;
|
|
|
|
int events = POLLIN;
|
|
if (s->write_buffer.len || data->ssl_rx_want_tx)
|
|
events |= POLLOUT;
|
|
|
|
// While we're waiting for an opposite event, we ignore the original
|
|
if (data->ssl_rx_want_tx) events &= ~POLLIN;
|
|
if (data->ssl_tx_want_rx) events &= ~POLLOUT;
|
|
return events;
|
|
}
|
|
|
|
static void
|
|
transport_tls_in_before_shutdown (struct server *s)
|
|
{
|
|
struct transport_tls_data *data = s->transport_data;
|
|
(void) SSL_shutdown (data->ssl);
|
|
}
|
|
|
|
static struct transport g_transport_tls =
|
|
{
|
|
.init = transport_tls_init,
|
|
.cleanup = transport_tls_cleanup,
|
|
.try_read = transport_tls_try_read,
|
|
.try_write = transport_tls_try_write,
|
|
.get_poll_events = transport_tls_get_poll_events,
|
|
.in_before_shutdown = transport_tls_in_before_shutdown,
|
|
};
|
|
|
|
// --- Connection establishment ------------------------------------------------
|
|
|
|
static bool
|
|
irc_autofill_user_info (struct server *s, struct error **e)
|
|
{
|
|
const char *nicks = get_config_string (s->config, "nicks");
|
|
const char *username = get_config_string (s->config, "username");
|
|
const char *realname = get_config_string (s->config, "realname");
|
|
|
|
if (nicks && *nicks && username && *username && realname)
|
|
return true;
|
|
|
|
// Read POSIX user info and fill the configuration if needed
|
|
errno = 0;
|
|
struct passwd *pwd = getpwuid (geteuid ());
|
|
if (!pwd)
|
|
{
|
|
return error_set (e,
|
|
"cannot retrieve user information: %s", strerror (errno));
|
|
}
|
|
|
|
// FIXME: set_config_strings() writes errors on its own
|
|
if (!nicks || !*nicks)
|
|
set_config_string (s->config, "nicks", pwd->pw_name);
|
|
if (!username || !*username)
|
|
set_config_string (s->config, "username", pwd->pw_name);
|
|
|
|
// Not all systems have the GECOS field but the vast majority does
|
|
if (!realname)
|
|
{
|
|
char *gecos = pwd->pw_gecos;
|
|
|
|
// The first comma, if any, ends the user's real name
|
|
char *comma = strchr (gecos, ',');
|
|
if (comma)
|
|
*comma = '\0';
|
|
|
|
set_config_string (s->config, "realname", gecos);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static char *
|
|
irc_fetch_next_nickname (struct server *s)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (get_config_string (s->config, "nicks"), ",", true, &v);
|
|
|
|
char *result = NULL;
|
|
if (s->nick_counter >= 0 && (size_t) s->nick_counter < v.len)
|
|
result = xstrdup (v.vector[s->nick_counter++]);
|
|
if ((size_t) s->nick_counter >= v.len)
|
|
// Exhausted all nicknames
|
|
s->nick_counter = -1;
|
|
|
|
strv_free (&v);
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
irc_register (struct server *s)
|
|
{
|
|
// Fill in user information automatically if needed
|
|
irc_autofill_user_info (s, NULL);
|
|
|
|
const char *username = get_config_string (s->config, "username");
|
|
const char *realname = get_config_string (s->config, "realname");
|
|
hard_assert (username && realname);
|
|
|
|
// Start IRCv3.1 capability negotiation;
|
|
// at worst the server will ignore this or send a harmless error message
|
|
irc_send (s, "CAP LS");
|
|
|
|
const char *password = get_config_string (s->config, "password");
|
|
if (password)
|
|
irc_send (s, "PASS :%s", password);
|
|
|
|
s->nick_counter = 0;
|
|
|
|
char *nickname = irc_fetch_next_nickname (s);
|
|
if (nickname)
|
|
irc_send (s, "NICK :%s", nickname);
|
|
else
|
|
log_server_error (s, s->buffer, "No nicks present in configuration");
|
|
free (nickname);
|
|
|
|
// IRC servers may ignore the last argument if it's empty
|
|
irc_send (s, "USER %s 8 * :%s", username, *realname ? realname : " ");
|
|
}
|
|
|
|
static void
|
|
irc_finish_connection (struct server *s, int socket, const char *hostname)
|
|
{
|
|
struct app_context *ctx = s->ctx;
|
|
|
|
// Most of our output comes from the user one full command at a time and we
|
|
// use output buffering, so it makes a lot of sense to avoid these delays
|
|
int yes = 1;
|
|
soft_assert (setsockopt (socket, IPPROTO_TCP, TCP_NODELAY,
|
|
&yes, sizeof yes) != -1);
|
|
|
|
set_blocking (socket, false);
|
|
s->socket = socket;
|
|
s->transport = get_config_boolean (s->config, "tls")
|
|
? &g_transport_tls
|
|
: &g_transport_plain;
|
|
|
|
struct error *e = NULL;
|
|
if (s->transport->init && !s->transport->init (s, hostname, &e))
|
|
{
|
|
log_server_error (s, s->buffer, "Connection failed: #s", e->message);
|
|
error_free (e);
|
|
|
|
xclose (s->socket);
|
|
s->socket = -1;
|
|
|
|
s->transport = NULL;
|
|
return;
|
|
}
|
|
|
|
log_server_status (s, s->buffer, "Connection established");
|
|
s->state = IRC_CONNECTED;
|
|
|
|
s->socket_event = poller_fd_make (&ctx->poller, s->socket);
|
|
s->socket_event.dispatcher = (poller_fd_fn) on_irc_ready;
|
|
s->socket_event.user_data = s;
|
|
|
|
irc_update_poller (s, NULL);
|
|
irc_reset_connection_timeouts (s);
|
|
irc_register (s);
|
|
|
|
refresh_prompt (s->ctx);
|
|
}
|
|
|
|
/// Unwrap IPv6 addresses in format_host_port_pair() format
|
|
static void
|
|
irc_split_host_port (char *s, char **host, char **port)
|
|
{
|
|
*host = s;
|
|
*port = "6667";
|
|
|
|
char *right_bracket = strchr (s, ']');
|
|
if (s[0] == '[' && right_bracket)
|
|
{
|
|
*right_bracket = '\0';
|
|
*host = s + 1;
|
|
s = right_bracket + 1;
|
|
}
|
|
|
|
char *colon = strchr (s, ':');
|
|
if (colon)
|
|
{
|
|
*colon = '\0';
|
|
*port = colon + 1;
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_on_connector_connecting (void *user_data, const char *address)
|
|
{
|
|
struct server *s = user_data;
|
|
log_server_status (s, s->buffer, "Connecting to #s...", address);
|
|
}
|
|
|
|
static void
|
|
irc_on_connector_error (void *user_data, const char *error)
|
|
{
|
|
struct server *s = user_data;
|
|
log_server_error (s, s->buffer, "Connection failed: #s", error);
|
|
}
|
|
|
|
static void
|
|
irc_on_connector_failure (void *user_data)
|
|
{
|
|
struct server *s = user_data;
|
|
irc_destroy_connector (s);
|
|
irc_queue_reconnect (s);
|
|
}
|
|
|
|
static void
|
|
irc_on_connector_connected (void *user_data, int socket, const char *hostname)
|
|
{
|
|
struct server *s = user_data;
|
|
char *hostname_copy = xstrdup (hostname);
|
|
irc_destroy_connector (s);
|
|
irc_finish_connection (s, socket, hostname_copy);
|
|
free (hostname_copy);
|
|
}
|
|
|
|
static void
|
|
irc_setup_connector (struct server *s, const struct strv *addresses)
|
|
{
|
|
struct connector *connector = xmalloc (sizeof *connector);
|
|
connector_init (connector, &s->ctx->poller);
|
|
s->connector = connector;
|
|
|
|
connector->user_data = s;
|
|
connector->on_connecting = irc_on_connector_connecting;
|
|
connector->on_error = irc_on_connector_error;
|
|
connector->on_connected = irc_on_connector_connected;
|
|
connector->on_failure = irc_on_connector_failure;
|
|
|
|
for (size_t i = 0; i < addresses->len; i++)
|
|
{
|
|
char *host, *port;
|
|
irc_split_host_port (addresses->vector[i], &host, &port);
|
|
connector_add_target (connector, host, port);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// TODO: see if we can further merge code for the two connectors, for example
|
|
// by making SOCKS 4A and 5 mere plugins for the connector, or by using
|
|
// a virtual interface common to them both (seems more likely)
|
|
|
|
static void
|
|
irc_on_socks_connecting (void *user_data,
|
|
const char *address, const char *via, const char *version)
|
|
{
|
|
struct server *s = user_data;
|
|
log_server_status (s, s->buffer,
|
|
"Connecting to #s via #s (#s)...", address, via, version);
|
|
}
|
|
|
|
static bool
|
|
irc_setup_connector_socks (struct server *s, const struct strv *addresses,
|
|
struct error **e)
|
|
{
|
|
const char *socks_host = get_config_string (s->config, "socks_host");
|
|
int64_t socks_port_int = get_config_integer (s->config, "socks_port");
|
|
|
|
if (!socks_host)
|
|
return false;
|
|
|
|
struct socks_connector *connector = xmalloc (sizeof *connector);
|
|
socks_connector_init (connector, &s->ctx->poller);
|
|
s->socks_conn = connector;
|
|
|
|
connector->user_data = s;
|
|
connector->on_connecting = irc_on_socks_connecting;
|
|
connector->on_error = irc_on_connector_error;
|
|
connector->on_connected = irc_on_connector_connected;
|
|
connector->on_failure = irc_on_connector_failure;
|
|
|
|
for (size_t i = 0; i < addresses->len; i++)
|
|
{
|
|
char *host, *port;
|
|
irc_split_host_port (addresses->vector[i], &host, &port);
|
|
|
|
if (!socks_connector_add_target (connector, host, port, e))
|
|
return false;
|
|
}
|
|
|
|
char *service = xstrdup_printf ("%" PRIi64, socks_port_int);
|
|
socks_connector_run (connector, socks_host, service,
|
|
get_config_string (s->config, "socks_username"),
|
|
get_config_string (s->config, "socks_password"));
|
|
free (service);
|
|
|
|
// The SOCKS connector can have already failed; we mustn't return true then
|
|
if (!s->socks_conn)
|
|
return error_set (e, "SOCKS connection failed");
|
|
return true;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_initiate_connect (struct server *s)
|
|
{
|
|
hard_assert (s->state == IRC_DISCONNECTED);
|
|
|
|
const char *addresses = get_config_string (s->config, "addresses");
|
|
if (!addresses || !addresses[strspn (addresses, ",")])
|
|
{
|
|
// No sense in trying to reconnect
|
|
log_server_error (s, s->buffer,
|
|
"No addresses specified in configuration");
|
|
return;
|
|
}
|
|
|
|
struct strv servers = strv_make ();
|
|
cstr_split (addresses, ",", true, &servers);
|
|
|
|
struct error *e = NULL;
|
|
if (!irc_setup_connector_socks (s, &servers, &e) && !e)
|
|
irc_setup_connector (s, &servers);
|
|
|
|
strv_free (&servers);
|
|
|
|
if (e)
|
|
{
|
|
irc_destroy_connector (s);
|
|
|
|
log_server_error (s, s->buffer, "#s", e->message);
|
|
error_free (e);
|
|
irc_queue_reconnect (s);
|
|
}
|
|
else if (s->state != IRC_CONNECTED)
|
|
s->state = IRC_CONNECTING;
|
|
}
|
|
|
|
// --- Input prompt ------------------------------------------------------------
|
|
|
|
static void
|
|
make_unseen_prefix (struct app_context *ctx, struct str *active_buffers)
|
|
{
|
|
size_t buffer_no = 0;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
{
|
|
buffer_no++;
|
|
if (!(iter->new_messages_count - iter->new_unimportant_count)
|
|
|| iter == ctx->current_buffer)
|
|
continue;
|
|
|
|
if (active_buffers->len)
|
|
str_append_c (active_buffers, ',');
|
|
if (iter->highlighted)
|
|
str_append_c (active_buffers, '!');
|
|
str_append_printf (active_buffers, "%zu", buffer_no);
|
|
}
|
|
}
|
|
|
|
static void
|
|
make_chanmode_postfix (struct channel *channel, struct str *modes)
|
|
{
|
|
if (channel->no_param_modes.len)
|
|
str_append (modes, channel->no_param_modes.str);
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&channel->param_modes);
|
|
char *param;
|
|
while ((param = str_map_iter_next (&iter)))
|
|
str_append_c (modes, iter.link->key[0]);
|
|
}
|
|
|
|
static void
|
|
make_server_postfix_registered (struct buffer *buffer, struct str *output)
|
|
{
|
|
struct server *s = buffer->server;
|
|
if (buffer->type == BUFFER_CHANNEL)
|
|
{
|
|
struct channel_user *channel_user =
|
|
irc_channel_get_user (buffer->channel, s->irc_user);
|
|
if (channel_user)
|
|
irc_get_channel_user_prefix (s, channel_user, output);
|
|
}
|
|
str_append (output, s->irc_user->nickname);
|
|
if (s->irc_user_mode.len)
|
|
str_append_printf (output, "(%s)", s->irc_user_mode.str);
|
|
}
|
|
|
|
static void
|
|
make_server_postfix (struct buffer *buffer, struct str *output)
|
|
{
|
|
struct server *s = buffer->server;
|
|
str_append_c (output, ' ');
|
|
if (!irc_is_connected (s))
|
|
str_append (output, "(disconnected)");
|
|
else if (s->state != IRC_REGISTERED)
|
|
str_append (output, "(unregistered)");
|
|
else
|
|
make_server_postfix_registered (buffer, output);
|
|
}
|
|
|
|
static void
|
|
make_prompt (struct app_context *ctx, struct str *output)
|
|
{
|
|
LIST_FOR_EACH (struct hook, iter, ctx->prompt_hooks)
|
|
{
|
|
struct prompt_hook *hook = (struct prompt_hook *) iter;
|
|
char *made = hook->make (hook);
|
|
if (made)
|
|
{
|
|
str_append (output, made);
|
|
free (made);
|
|
return;
|
|
}
|
|
}
|
|
|
|
struct buffer *buffer = ctx->current_buffer;
|
|
if (!buffer)
|
|
return;
|
|
|
|
str_append_c (output, '[');
|
|
|
|
struct str active_buffers = str_make ();
|
|
make_unseen_prefix (ctx, &active_buffers);
|
|
if (active_buffers.len)
|
|
str_append_printf (output, "(%s) ", active_buffers.str);
|
|
str_free (&active_buffers);
|
|
|
|
str_append_printf (output, "%d:%s",
|
|
buffer_get_index (ctx, buffer), buffer->name);
|
|
// We remember old modes, don't show them while we're not on the channel
|
|
if (buffer->type == BUFFER_CHANNEL
|
|
&& buffer->channel->users_len)
|
|
{
|
|
struct str modes = str_make ();
|
|
make_chanmode_postfix (buffer->channel, &modes);
|
|
if (modes.len)
|
|
str_append_printf (output, "(+%s)", modes.str);
|
|
str_free (&modes);
|
|
|
|
str_append_printf (output, "{%zu}", buffer->channel->users_len);
|
|
}
|
|
if (buffer->hide_unimportant)
|
|
str_append (output, "<H>");
|
|
|
|
if (buffer != ctx->global_buffer)
|
|
make_server_postfix (buffer, output);
|
|
|
|
str_append_c (output, ']');
|
|
str_append_c (output, ' ');
|
|
}
|
|
|
|
static void
|
|
input_maybe_set_prompt (struct input *self, char *new_prompt)
|
|
{
|
|
// Redisplay can be an expensive operation
|
|
const char *prompt = CALL (self, get_prompt);
|
|
if (prompt && !strcmp (new_prompt, prompt))
|
|
free (new_prompt);
|
|
else
|
|
CALL_ (self, set_prompt, new_prompt);
|
|
}
|
|
|
|
static void
|
|
on_refresh_prompt (struct app_context *ctx)
|
|
{
|
|
poller_idle_reset (&ctx->prompt_event);
|
|
bool have_attributes = !!get_attribute_printer (stdout);
|
|
|
|
struct str prompt = str_make ();
|
|
make_prompt (ctx, &prompt);
|
|
|
|
// libedit has a weird bug where it misapplies ignores when they're not
|
|
// followed by anything else, so let's try to move a trailing space,
|
|
// which will at least fix the default prompt.
|
|
const char *attributed_suffix = "";
|
|
#ifdef HAVE_EDITLINE
|
|
if (have_attributes && prompt.len && prompt.str[prompt.len - 1] == ' ')
|
|
{
|
|
prompt.str[--prompt.len] = 0;
|
|
attributed_suffix = " ";
|
|
}
|
|
#endif // HAVE_EDITLINE
|
|
|
|
char *localized = iconv_xstrdup (ctx->term_from_utf8, prompt.str, -1, NULL);
|
|
str_free (&prompt);
|
|
|
|
if (have_attributes)
|
|
{
|
|
// XXX: to be completely correct, we should use tputs, but we cannot
|
|
input_maybe_set_prompt (ctx->input, xstrdup_printf ("%c%s%c%s%c%s%c%s",
|
|
INPUT_START_IGNORE, ctx->attrs[ATTR_PROMPT],
|
|
INPUT_END_IGNORE,
|
|
localized,
|
|
INPUT_START_IGNORE, ctx->attrs[ATTR_RESET],
|
|
INPUT_END_IGNORE,
|
|
attributed_suffix));
|
|
free (localized);
|
|
}
|
|
else
|
|
input_maybe_set_prompt (ctx->input, localized);
|
|
}
|
|
|
|
// --- Helpers -----------------------------------------------------------------
|
|
|
|
static struct buffer *
|
|
irc_get_buffer_for_message (struct server *s,
|
|
const struct irc_message *msg, const char *target)
|
|
{
|
|
// TODO: display such messages differently
|
|
target = irc_skip_statusmsg (s, target);
|
|
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, target);
|
|
if (irc_is_channel (s, target))
|
|
{
|
|
struct channel *channel = str_map_find (&s->irc_channels, target);
|
|
hard_assert (channel || !buffer);
|
|
|
|
// This is weird
|
|
if (!channel)
|
|
return NULL;
|
|
}
|
|
else if (!buffer)
|
|
{
|
|
// Outgoing messages needn't have a prefix, no buffer associated
|
|
if (!msg->prefix)
|
|
return NULL;
|
|
|
|
// Don't make user buffers for servers (they can send NOTICEs)
|
|
if (!irc_find_userhost (msg->prefix))
|
|
return s->buffer;
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
if (irc_is_this_us (s, target))
|
|
buffer = irc_get_or_make_user_buffer (s, nickname);
|
|
free (nickname);
|
|
|
|
// With the IRCv3.2 echo-message capability, we can receive messages
|
|
// as they are delivered to the target; in that case we return NULL
|
|
// and the caller should check the origin
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
static bool
|
|
irc_is_highlight (struct server *s, const char *message)
|
|
{
|
|
// This may be called by notices before even successfully registering
|
|
if (!s->irc_user)
|
|
return false;
|
|
|
|
// Strip formatting from the message so that it doesn't interfere
|
|
// with nickname detection (colour sequences in particular)
|
|
struct formatter f = formatter_make (s->ctx, NULL);
|
|
formatter_parse_mirc (&f, message);
|
|
|
|
struct str stripped = str_make ();
|
|
for (size_t i = 0; i < f.items_len; i++)
|
|
{
|
|
if (f.items[i].type == FORMATTER_ITEM_TEXT)
|
|
str_append (&stripped, f.items[i].text);
|
|
}
|
|
formatter_free (&f);
|
|
|
|
// Well, this is rather crude but it should make most users happy.
|
|
// We could do this in proper Unicode but that's two more conversions per
|
|
// message when both the nickname and the message are likely valid UTF-8.
|
|
char *copy = str_steal (&stripped);
|
|
cstr_transform (copy, s->irc_tolower);
|
|
|
|
char *nick = xstrdup (s->irc_user->nickname);
|
|
cstr_transform (nick, s->irc_tolower);
|
|
|
|
// Special characters allowed in nicknames by RFC 2812: []\`_^{|} and -
|
|
// Also excluded from the ASCII: common user channel prefixes: +%@&~
|
|
// XXX: why did I exclude those? It won't match when IRC newbies use them.
|
|
const char *delimiters = ",.;:!?()<>/=#$* \t\r\n\v\f\"'";
|
|
|
|
bool result = false;
|
|
char *save = NULL;
|
|
for (char *token = strtok_r (copy, delimiters, &save);
|
|
token; token = strtok_r (NULL, delimiters, &save))
|
|
if (!strcmp (token, nick))
|
|
{
|
|
result = true;
|
|
break;
|
|
}
|
|
|
|
free (copy);
|
|
free (nick);
|
|
return result;
|
|
}
|
|
|
|
static char *
|
|
irc_get_privmsg_prefix (struct server *s, struct user *user, const char *target)
|
|
{
|
|
struct str prefix = str_make ();
|
|
if (user && irc_is_channel (s, (target = irc_skip_statusmsg (s, target))))
|
|
{
|
|
struct channel *channel;
|
|
struct channel_user *channel_user;
|
|
if ((channel = str_map_find (&s->irc_channels, target))
|
|
&& (channel_user = irc_channel_get_user (channel, user)))
|
|
irc_get_channel_user_prefix (s, channel_user, &prefix);
|
|
}
|
|
return str_steal (&prefix);
|
|
}
|
|
|
|
// --- Mode processor ----------------------------------------------------------
|
|
|
|
struct mode_processor
|
|
{
|
|
char **params; ///< Mode string parameters
|
|
bool adding; ///< Currently adding modes
|
|
char mode_char; ///< Currently processed mode char
|
|
|
|
// User data:
|
|
|
|
struct server *s; ///< Server
|
|
struct channel *channel; ///< The channel being modified
|
|
unsigned changes; ///< Count of all changes
|
|
unsigned usermode_changes; ///< Count of all usermode changes
|
|
};
|
|
|
|
/// Process a single mode character
|
|
typedef bool (*mode_processor_apply_fn) (struct mode_processor *);
|
|
|
|
static const char *
|
|
mode_processor_next_param (struct mode_processor *self)
|
|
{
|
|
if (!*self->params)
|
|
return NULL;
|
|
return *self->params++;
|
|
}
|
|
|
|
static void
|
|
mode_processor_run (struct mode_processor *self,
|
|
char **params, mode_processor_apply_fn apply_cb)
|
|
{
|
|
self->params = params;
|
|
|
|
const char *mode_string;
|
|
while ((mode_string = mode_processor_next_param (self)))
|
|
{
|
|
self->adding = true;
|
|
while ((self->mode_char = *mode_string++))
|
|
{
|
|
if (self->mode_char == '+') self->adding = true;
|
|
else if (self->mode_char == '-') self->adding = false;
|
|
else if (!apply_cb (self))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
mode_char_cmp (const void *a, const void *b)
|
|
{
|
|
return *(const char *) a - *(const char *) b;
|
|
}
|
|
|
|
/// Add/remove the current mode character to/from the given ordered list
|
|
static void
|
|
mode_processor_toggle (struct mode_processor *self, struct str *modes)
|
|
{
|
|
const char *pos = strchr (modes->str, self->mode_char);
|
|
if (self->adding == !!pos)
|
|
return;
|
|
|
|
if (self->adding)
|
|
{
|
|
str_append_c (modes, self->mode_char);
|
|
qsort (modes->str, modes->len, 1, mode_char_cmp);
|
|
}
|
|
else
|
|
str_remove_slice (modes, pos - modes->str, 1);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
mode_processor_do_user (struct mode_processor *self)
|
|
{
|
|
const char *nickname;
|
|
struct user *user;
|
|
struct channel_user *channel_user;
|
|
if (!(nickname = mode_processor_next_param (self))
|
|
|| !(user = str_map_find (&self->s->irc_users, nickname))
|
|
|| !(channel_user = irc_channel_get_user (self->channel, user)))
|
|
return;
|
|
|
|
// Translate mode character to user prefix character
|
|
const char *all_prefixes = self->s->irc_chanuser_prefixes;
|
|
const char *all_modes = self->s->irc_chanuser_modes;
|
|
|
|
const char *mode = strchr (all_modes, self->mode_char);
|
|
hard_assert (mode && (size_t) (mode - all_modes) < strlen (all_prefixes));
|
|
char prefix = all_prefixes[mode - all_modes];
|
|
|
|
char **prefixes = &channel_user->prefixes;
|
|
char *pos = strchr (*prefixes, prefix);
|
|
if (self->adding == !!pos)
|
|
return;
|
|
|
|
if (self->adding)
|
|
{
|
|
// Add the new mode prefix while retaining the right order
|
|
struct str buf = str_make ();
|
|
for (const char *p = all_prefixes; *p; p++)
|
|
if (*p == prefix || strchr (*prefixes, *p))
|
|
str_append_c (&buf, *p);
|
|
cstr_set (prefixes, str_steal (&buf));
|
|
}
|
|
else
|
|
memmove (pos, pos + 1, strlen (pos));
|
|
}
|
|
|
|
static void
|
|
mode_processor_do_param_always (struct mode_processor *self)
|
|
{
|
|
const char *param = NULL;
|
|
if (!(param = mode_processor_next_param (self)))
|
|
return;
|
|
|
|
char key[2] = { self->mode_char, 0 };
|
|
str_map_set (&self->channel->param_modes, key,
|
|
self->adding ? xstrdup (param) : NULL);
|
|
}
|
|
|
|
static void
|
|
mode_processor_do_param_when_set (struct mode_processor *self)
|
|
{
|
|
const char *param = NULL;
|
|
if (self->adding && !(param = mode_processor_next_param (self)))
|
|
return;
|
|
|
|
char key[2] = { self->mode_char, 0 };
|
|
str_map_set (&self->channel->param_modes, key,
|
|
self->adding ? xstrdup (param) : NULL);
|
|
}
|
|
|
|
static bool
|
|
mode_processor_apply_channel (struct mode_processor *self)
|
|
{
|
|
self->changes++;
|
|
if (strchr (self->s->irc_chanuser_modes, self->mode_char))
|
|
{
|
|
self->usermode_changes++;
|
|
mode_processor_do_user (self);
|
|
}
|
|
else if (strchr (self->s->irc_chanmodes_list, self->mode_char))
|
|
// Nothing to do here, just skip the next argument if there's any
|
|
(void) mode_processor_next_param (self);
|
|
else if (strchr (self->s->irc_chanmodes_param_always, self->mode_char))
|
|
mode_processor_do_param_always (self);
|
|
else if (strchr (self->s->irc_chanmodes_param_when_set, self->mode_char))
|
|
mode_processor_do_param_when_set (self);
|
|
else if (strchr (self->s->irc_chanmodes_param_never, self->mode_char))
|
|
mode_processor_toggle (self, &self->channel->no_param_modes);
|
|
else
|
|
// It's not safe to continue, results could be undesired
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/// Returns whether the change has only affected channel user modes
|
|
static bool
|
|
irc_handle_mode_channel
|
|
(struct server *s, struct channel *channel, char **params)
|
|
{
|
|
struct mode_processor p = { .s = s, .channel = channel };
|
|
mode_processor_run (&p, params, mode_processor_apply_channel);
|
|
return p.changes == p.usermode_changes;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
mode_processor_apply_user (struct mode_processor *self)
|
|
{
|
|
mode_processor_toggle (self, &self->s->irc_user_mode);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
irc_handle_mode_user (struct server *s, char **params)
|
|
{
|
|
struct mode_processor p = { .s = s };
|
|
mode_processor_run (&p, params, mode_processor_apply_user);
|
|
}
|
|
|
|
// --- Output processing -------------------------------------------------------
|
|
|
|
// Both user and plugins can send whatever the heck they want to,
|
|
// we need to parse it back so that it's evident what's happening
|
|
|
|
static void
|
|
irc_handle_sent_cap (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
const char *subcommand = msg->params.vector[1];
|
|
const char *args = (msg->params.len > 2) ? msg->params.vector[2] : "";
|
|
if (!strcasecmp_ascii (subcommand, "REQ"))
|
|
log_server_status (s, s->buffer,
|
|
"#s: #S", "Capabilities requested", args);
|
|
}
|
|
|
|
static void
|
|
irc_handle_sent_notice_text (struct server *s,
|
|
const struct irc_message *msg, struct str *text)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
|
|
if (buffer && soft_assert (s->irc_user))
|
|
log_outcoming_notice (s, buffer, s->irc_user->nickname, text->str);
|
|
else
|
|
log_outcoming_orphan_notice (s, target, text->str);
|
|
}
|
|
|
|
static void
|
|
irc_handle_sent_notice (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2 || s->cap_echo_message)
|
|
return;
|
|
|
|
// This ignores empty messages which we should not normally send
|
|
struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
|
|
LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
|
|
{
|
|
if (iter->is_extended)
|
|
log_ctcp_reply (s, msg->params.vector[0],
|
|
xstrdup_printf ("%s %s", iter->tag.str, iter->text.str));
|
|
else
|
|
irc_handle_sent_notice_text (s, msg, &iter->text);
|
|
}
|
|
ctcp_destroy (chunks);
|
|
}
|
|
|
|
static void
|
|
irc_handle_sent_privmsg_text (struct server *s,
|
|
const struct irc_message *msg, struct str *text, bool is_action)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
|
|
if (buffer && soft_assert (s->irc_user))
|
|
{
|
|
char *prefixes = irc_get_privmsg_prefix (s, s->irc_user, target);
|
|
if (is_action)
|
|
log_outcoming_action (s, buffer, s->irc_user->nickname, text->str);
|
|
else
|
|
log_outcoming_privmsg (s, buffer,
|
|
prefixes, s->irc_user->nickname, text->str);
|
|
free (prefixes);
|
|
}
|
|
else
|
|
// TODO: also handle actions here
|
|
log_outcoming_orphan_privmsg (s, target, text->str);
|
|
}
|
|
|
|
static void
|
|
irc_handle_sent_privmsg (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2 || s->cap_echo_message)
|
|
return;
|
|
|
|
// This ignores empty messages which we should not normally send
|
|
// and the server is likely going to reject with an error reply anyway
|
|
struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
|
|
LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
|
|
{
|
|
if (!iter->is_extended)
|
|
irc_handle_sent_privmsg_text (s, msg, &iter->text, false);
|
|
else if (!strcmp (iter->tag.str, "ACTION"))
|
|
irc_handle_sent_privmsg_text (s, msg, &iter->text, true);
|
|
else
|
|
log_ctcp_query (s, msg->params.vector[0], iter->tag.str);
|
|
}
|
|
ctcp_destroy (chunks);
|
|
}
|
|
|
|
static struct irc_handler
|
|
{
|
|
const char *name;
|
|
void (*handler) (struct server *s, const struct irc_message *msg);
|
|
}
|
|
g_irc_sent_handlers[] =
|
|
{
|
|
// This list needs to stay sorted
|
|
{ "CAP", irc_handle_sent_cap },
|
|
{ "NOTICE", irc_handle_sent_notice },
|
|
{ "PRIVMSG", irc_handle_sent_privmsg },
|
|
};
|
|
|
|
static int
|
|
irc_handler_cmp_by_name (const void *a, const void *b)
|
|
{
|
|
const struct irc_handler *first = a;
|
|
const struct irc_handler *second = b;
|
|
return strcasecmp_ascii (first->name, second->name);
|
|
}
|
|
|
|
static void
|
|
irc_process_sent_message (const struct irc_message *msg, struct server *s)
|
|
{
|
|
// The server is free to reject even a matching prefix
|
|
// XXX: even though no prefix should normally be present, this is racy
|
|
if (msg->prefix && !irc_is_this_us (s, msg->prefix))
|
|
return;
|
|
|
|
struct irc_handler key = { .name = msg->command };
|
|
struct irc_handler *handler = bsearch (&key, g_irc_sent_handlers,
|
|
N_ELEMENTS (g_irc_sent_handlers), sizeof key, irc_handler_cmp_by_name);
|
|
if (handler)
|
|
handler->handler (s, msg);
|
|
}
|
|
|
|
// --- Input handling ----------------------------------------------------------
|
|
|
|
static void
|
|
irc_handle_cap (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
struct strv v = strv_make ();
|
|
const char *args = "";
|
|
if (msg->params.len > 2)
|
|
cstr_split ((args = msg->params.vector[2]), " ", true, &v);
|
|
|
|
const char *subcommand = msg->params.vector[1];
|
|
if (!strcasecmp_ascii (subcommand, "ACK"))
|
|
{
|
|
log_server_status (s, s->buffer,
|
|
"#s: #S", "Capabilities acknowledged", args);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
const char *cap = v.vector[i];
|
|
bool active = true;
|
|
if (*cap == '-')
|
|
{
|
|
active = false;
|
|
cap++;
|
|
}
|
|
if (!strcasecmp_ascii (cap, "echo-message"))
|
|
s->cap_echo_message = active;
|
|
}
|
|
irc_send (s, "CAP END");
|
|
}
|
|
else if (!strcasecmp_ascii (subcommand, "NAK"))
|
|
{
|
|
log_server_error (s, s->buffer,
|
|
"#s: #S", "Capabilities not acknowledged", args);
|
|
irc_send (s, "CAP END");
|
|
}
|
|
else if (!strcasecmp_ascii (subcommand, "LS"))
|
|
{
|
|
log_server_status (s, s->buffer,
|
|
"#s: #S", "Capabilities supported", args);
|
|
|
|
struct strv chosen = strv_make ();
|
|
struct strv use = strv_make ();
|
|
|
|
cstr_split (get_config_string (s->config, "capabilities"),
|
|
",", true, &use);
|
|
|
|
// Filter server capabilities for ones we can make use of
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
const char *cap = v.vector[i];
|
|
for (size_t k = 0; k < use.len; k++)
|
|
if (!strcasecmp_ascii (use.vector[k], cap))
|
|
strv_append (&chosen, cap);
|
|
}
|
|
|
|
char *chosen_str = strv_join (&chosen, " ");
|
|
strv_free (&chosen);
|
|
strv_free (&use);
|
|
|
|
irc_send (s, "CAP REQ :%s", chosen_str);
|
|
free (chosen_str);
|
|
}
|
|
|
|
strv_free (&v);
|
|
}
|
|
|
|
static void
|
|
irc_handle_error (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 1)
|
|
return;
|
|
|
|
log_server_error (s, s->buffer, "#m", msg->params.vector[0]);
|
|
}
|
|
|
|
static void
|
|
irc_handle_invite (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
const char *target = msg->params.vector[0];
|
|
const char *channel_name = msg->params.vector[1];
|
|
|
|
struct buffer *buffer;
|
|
if (!(buffer = str_map_find (&s->irc_buffer_map, channel_name)))
|
|
buffer = s->buffer;
|
|
|
|
// IRCv3.2 invite-notify extension allows the target to be someone else
|
|
if (irc_is_this_us (s, target))
|
|
log_server_status (s, buffer,
|
|
"#n has invited you to #S", msg->prefix, channel_name);
|
|
else
|
|
log_server_status (s, buffer,
|
|
"#n has invited #n to #S", msg->prefix, target, channel_name);
|
|
}
|
|
|
|
static void
|
|
irc_handle_join (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 1)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[0];
|
|
if (!irc_is_channel (s, channel_name))
|
|
return;
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
// We've joined a new channel
|
|
if (!channel && irc_is_this_us (s, msg->prefix))
|
|
{
|
|
buffer = buffer_new (s->ctx->input);
|
|
buffer->type = BUFFER_CHANNEL;
|
|
buffer->name = xstrdup_printf ("%s.%s", s->name, channel_name);
|
|
buffer->server = s;
|
|
buffer->channel = channel =
|
|
irc_make_channel (s, xstrdup (channel_name));
|
|
str_map_set (&s->irc_buffer_map, channel->name, buffer);
|
|
|
|
buffer_add (s->ctx, buffer);
|
|
buffer_activate (s->ctx, buffer);
|
|
}
|
|
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
{
|
|
// Reset the field so that we rejoin the channel after reconnecting
|
|
channel->left_manually = false;
|
|
|
|
// Request the channel mode as we don't get it automatically
|
|
str_reset (&channel->no_param_modes);
|
|
str_map_clear (&channel->param_modes);
|
|
irc_send (s, "MODE %s", channel_name);
|
|
}
|
|
|
|
// This is weird, ignoring
|
|
if (!channel)
|
|
return;
|
|
|
|
// Add the user to the channel
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
irc_channel_link_user (channel, irc_get_or_make_user (s, nickname), "");
|
|
free (nickname);
|
|
|
|
// Finally log the message
|
|
if (buffer)
|
|
{
|
|
log_server (s, buffer, BUFFER_LINE_UNIMPORTANT, "#a-->#r #N #a#s#r #S",
|
|
ATTR_JOIN, msg->prefix, ATTR_JOIN, "has joined", channel_name);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_kick (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[0];
|
|
const char *target = msg->params.vector[1];
|
|
if (!irc_is_channel (s, channel_name)
|
|
|| irc_is_channel (s, target))
|
|
return;
|
|
|
|
const char *message = NULL;
|
|
if (msg->params.len > 2)
|
|
message = msg->params.vector[2];
|
|
|
|
struct user *user = str_map_find (&s->irc_users, target);
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
// It would be weird for this to be false
|
|
if (user && channel)
|
|
{
|
|
if (irc_is_this_us (s, target))
|
|
irc_left_channel (channel);
|
|
else
|
|
irc_remove_user_from_channel (user, channel);
|
|
}
|
|
|
|
if (buffer)
|
|
{
|
|
struct formatter f = formatter_make (s->ctx, s);
|
|
formatter_add (&f, "#a<--#r #N #a#s#r #n",
|
|
ATTR_PART, msg->prefix, ATTR_PART, "has kicked", target);
|
|
if (message)
|
|
formatter_add (&f, " (#m)", message);
|
|
log_formatter (s->ctx, buffer, 0, &f);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_kill (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
const char *target = msg->params.vector[0];
|
|
const char *comment = msg->params.vector[1];
|
|
|
|
if (irc_is_this_us (s, target))
|
|
log_server_status (s, s->buffer,
|
|
"You've been killed by #n (#m)", msg->prefix, comment);
|
|
}
|
|
|
|
static void
|
|
irc_handle_mode (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 1)
|
|
return;
|
|
|
|
const char *context = msg->params.vector[0];
|
|
|
|
// Join the modes back to a single string
|
|
struct strv copy = strv_make ();
|
|
strv_append_vector (©, msg->params.vector + 1);
|
|
char *modes = strv_join (©, " ");
|
|
strv_free (©);
|
|
|
|
if (irc_is_channel (s, context))
|
|
{
|
|
struct channel *channel = str_map_find (&s->irc_channels, context);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, context);
|
|
hard_assert (channel || !buffer);
|
|
|
|
int flags = 0;
|
|
if (channel
|
|
&& irc_handle_mode_channel (s, channel, msg->params.vector + 1))
|
|
// This is 90% automode spam, let's not let it steal attention,
|
|
// maybe this behaviour should be configurable though
|
|
flags = BUFFER_LINE_UNIMPORTANT;
|
|
|
|
if (buffer)
|
|
{
|
|
log_server (s, buffer, BUFFER_LINE_STATUS | flags,
|
|
"Mode #S [#S] by #n", context, modes, msg->prefix);
|
|
}
|
|
}
|
|
else if (irc_is_this_us (s, context))
|
|
{
|
|
irc_handle_mode_user (s, msg->params.vector + 1);
|
|
log_server_status (s, s->buffer,
|
|
"User mode [#S] by #n", modes, msg->prefix);
|
|
}
|
|
|
|
free (modes);
|
|
}
|
|
|
|
static void
|
|
irc_handle_nick (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 1)
|
|
return;
|
|
|
|
const char *new_nickname = msg->params.vector[0];
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
struct user *user = str_map_find (&s->irc_users, nickname);
|
|
free (nickname);
|
|
if (!user)
|
|
return;
|
|
|
|
bool lexicographically_different =
|
|
!!irc_server_strcmp (s, user->nickname, new_nickname);
|
|
|
|
// What the fuck, someone renamed themselves to ourselves
|
|
// TODO: probably log a message and force a reconnect
|
|
if (lexicographically_different
|
|
&& !irc_server_strcmp (s, new_nickname, s->irc_user->nickname))
|
|
return;
|
|
|
|
// Log a message in any PM buffer (we may even have one for ourselves)
|
|
struct buffer *pm_buffer =
|
|
str_map_find (&s->irc_buffer_map, user->nickname);
|
|
if (pm_buffer)
|
|
{
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
log_nick_self (s, pm_buffer, new_nickname);
|
|
else
|
|
log_nick (s, pm_buffer, msg->prefix, new_nickname);
|
|
}
|
|
|
|
// The new nickname may collide with a user referenced by a PM buffer,
|
|
// or in case of data inconsistency with the server, channels.
|
|
// In the latter case we need the colliding user to leave all of them.
|
|
struct user *user_collision = NULL;
|
|
if (lexicographically_different
|
|
&& (user_collision = str_map_find (&s->irc_users, new_nickname)))
|
|
LIST_FOR_EACH (struct user_channel, iter, user_collision->channels)
|
|
irc_remove_user_from_channel (user_collision, iter->channel);
|
|
|
|
struct buffer *buffer_collision = NULL;
|
|
if (lexicographically_different
|
|
&& (buffer_collision = str_map_find (&s->irc_buffer_map, new_nickname)))
|
|
{
|
|
hard_assert (buffer_collision->type == BUFFER_PM);
|
|
hard_assert (buffer_collision->user == user_collision);
|
|
|
|
user_unref (buffer_collision->user);
|
|
buffer_collision->user = user_ref (user);
|
|
}
|
|
|
|
if (pm_buffer && buffer_collision)
|
|
{
|
|
// There's not much else we can do other than somehow try to merge
|
|
// one buffer into the other. In our case, the original buffer wins.
|
|
buffer_merge (s->ctx, buffer_collision, pm_buffer);
|
|
if (s->ctx->current_buffer == pm_buffer)
|
|
buffer_activate (s->ctx, buffer_collision);
|
|
buffer_remove (s->ctx, pm_buffer);
|
|
pm_buffer = buffer_collision;
|
|
}
|
|
|
|
// The colliding user should be completely gone by now
|
|
if (lexicographically_different)
|
|
hard_assert (!str_map_find (&s->irc_users, new_nickname));
|
|
|
|
// Now we can rename the PM buffer to reflect the new nickname
|
|
if (pm_buffer)
|
|
{
|
|
str_map_set (&s->irc_buffer_map, user->nickname, NULL);
|
|
str_map_set (&s->irc_buffer_map, new_nickname, pm_buffer);
|
|
|
|
char *x = xstrdup_printf ("%s.%s", s->name, new_nickname);
|
|
buffer_rename (s->ctx, pm_buffer, x);
|
|
free (x);
|
|
}
|
|
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
{
|
|
log_nick_self (s, s->buffer, new_nickname);
|
|
|
|
// Log a message in all open buffers on this server
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
|
|
struct buffer *buffer;
|
|
while ((buffer = str_map_iter_next (&iter)))
|
|
{
|
|
// We've already done that
|
|
if (buffer != pm_buffer)
|
|
log_nick_self (s, buffer, new_nickname);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Log a message in all channels the user is in
|
|
LIST_FOR_EACH (struct user_channel, iter, user->channels)
|
|
{
|
|
struct buffer *buffer =
|
|
str_map_find (&s->irc_buffer_map, iter->channel->name);
|
|
hard_assert (buffer != NULL);
|
|
log_nick (s, buffer, msg->prefix, new_nickname);
|
|
}
|
|
}
|
|
|
|
// Finally rename the user as it should be safe now
|
|
str_map_set (&s->irc_users, user->nickname, NULL);
|
|
str_map_set (&s->irc_users, new_nickname, user);
|
|
|
|
cstr_set (&user->nickname, xstrdup (new_nickname));
|
|
}
|
|
|
|
static void
|
|
irc_handle_ctcp_reply (struct server *s,
|
|
const struct irc_message *msg, struct ctcp_chunk *chunk)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
log_ctcp_reply (s, target,
|
|
xstrdup_printf ("%s %s", chunk->tag.str, chunk->text.str));
|
|
else
|
|
log_server_status (s, s->buffer, "CTCP reply from #n: #S #S",
|
|
msg->prefix, chunk->tag.str, chunk->text.str);
|
|
}
|
|
|
|
static void
|
|
irc_handle_notice_text (struct server *s,
|
|
const struct irc_message *msg, struct str *text)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
|
|
if (!buffer)
|
|
{
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
log_outcoming_orphan_notice (s, target, text->str);
|
|
return;
|
|
}
|
|
|
|
char *nick = irc_cut_nickname (msg->prefix);
|
|
// IRCv3.2 echo-message could otherwise cause us to highlight ourselves
|
|
if (!irc_is_this_us (s, msg->prefix) && irc_is_highlight (s, text->str))
|
|
log_server (s, buffer, BUFFER_LINE_STATUS | BUFFER_LINE_HIGHLIGHT,
|
|
"#a#s(#S)#r: #m", ATTR_HIGHLIGHT, "Notice", nick, text->str);
|
|
else
|
|
log_outcoming_notice (s, buffer, msg->prefix, text->str);
|
|
free (nick);
|
|
}
|
|
|
|
static void
|
|
irc_handle_notice (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
// This ignores empty messages which we should never receive anyway
|
|
struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
|
|
LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
|
|
if (!iter->is_extended)
|
|
irc_handle_notice_text (s, msg, &iter->text);
|
|
else
|
|
irc_handle_ctcp_reply (s, msg, iter);
|
|
ctcp_destroy (chunks);
|
|
}
|
|
|
|
static void
|
|
irc_handle_part (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 1)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[0];
|
|
if (!irc_is_channel (s, channel_name))
|
|
return;
|
|
|
|
const char *message = NULL;
|
|
if (msg->params.len > 1)
|
|
message = msg->params.vector[1];
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
struct user *user = str_map_find (&s->irc_users, nickname);
|
|
free (nickname);
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
// It would be weird for this to be false
|
|
if (user && channel)
|
|
{
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
irc_left_channel (channel);
|
|
else
|
|
irc_remove_user_from_channel (user, channel);
|
|
}
|
|
|
|
if (buffer)
|
|
{
|
|
struct formatter f = formatter_make (s->ctx, s);
|
|
formatter_add (&f, "#a<--#r #N #a#s#r #S",
|
|
ATTR_PART, msg->prefix, ATTR_PART, "has left", channel_name);
|
|
if (message)
|
|
formatter_add (&f, " (#m)", message);
|
|
log_formatter (s->ctx, buffer, BUFFER_LINE_UNIMPORTANT, &f);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_ping (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len)
|
|
irc_send (s, "PONG :%s", msg->params.vector[0]);
|
|
else
|
|
irc_send (s, "PONG");
|
|
}
|
|
|
|
static char *
|
|
ctime_now (char buf[26])
|
|
{
|
|
struct tm tm_;
|
|
time_t now = time (NULL);
|
|
if (!asctime_r (localtime_r (&now, &tm_), buf))
|
|
return NULL;
|
|
|
|
// Annoying thing
|
|
*strchr (buf, '\n') = '\0';
|
|
return buf;
|
|
}
|
|
|
|
static void irc_send_ctcp_reply (struct server *s, const char *recipient,
|
|
const char *format, ...) ATTRIBUTE_PRINTF (3, 4);
|
|
|
|
static void
|
|
irc_send_ctcp_reply (struct server *s,
|
|
const char *recipient, const char *format, ...)
|
|
{
|
|
struct str m = str_make ();
|
|
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
str_append_vprintf (&m, format, ap);
|
|
va_end (ap);
|
|
|
|
irc_send (s, "NOTICE %s :\x01%s\x01", recipient, m.str);
|
|
str_free (&m);
|
|
}
|
|
|
|
static void
|
|
irc_handle_ctcp_request (struct server *s,
|
|
const struct irc_message *msg, struct ctcp_chunk *chunk)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
{
|
|
if (s->cap_echo_message)
|
|
log_ctcp_query (s, target, chunk->tag.str);
|
|
if (!irc_is_this_us (s, target))
|
|
return;
|
|
}
|
|
|
|
struct formatter f = formatter_make (s->ctx, s);
|
|
formatter_add (&f, "CTCP requested by #n", msg->prefix);
|
|
if (irc_is_channel (s, irc_skip_statusmsg (s, target)))
|
|
formatter_add (&f, " (to #S)", target);
|
|
formatter_add (&f, ": #S", chunk->tag.str);
|
|
log_formatter (s->ctx, s->buffer, BUFFER_LINE_STATUS, &f);
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
|
|
if (!strcmp (chunk->tag.str, "CLIENTINFO"))
|
|
irc_send_ctcp_reply (s, nickname, "CLIENTINFO %s %s %s %s",
|
|
"PING", "VERSION", "TIME", "CLIENTINFO");
|
|
else if (!strcmp (chunk->tag.str, "PING"))
|
|
irc_send_ctcp_reply (s, nickname, "PING %s", chunk->text.str);
|
|
else if (!strcmp (chunk->tag.str, "VERSION"))
|
|
{
|
|
struct utsname info;
|
|
if (uname (&info))
|
|
LOG_LIBC_FAILURE ("uname");
|
|
else
|
|
irc_send_ctcp_reply (s, nickname, "VERSION %s %s on %s %s",
|
|
PROGRAM_NAME, PROGRAM_VERSION, info.sysname, info.machine);
|
|
}
|
|
else if (!strcmp (chunk->tag.str, "TIME"))
|
|
{
|
|
char buf[26];
|
|
if (!ctime_now (buf))
|
|
LOG_LIBC_FAILURE ("asctime_r");
|
|
else
|
|
irc_send_ctcp_reply (s, nickname, "TIME %s", buf);
|
|
}
|
|
|
|
free (nickname);
|
|
}
|
|
|
|
static void
|
|
irc_handle_privmsg_text (struct server *s,
|
|
const struct irc_message *msg, struct str *text, bool is_action)
|
|
{
|
|
const char *target = msg->params.vector[0];
|
|
struct buffer *buffer = irc_get_buffer_for_message (s, msg, target);
|
|
if (!buffer)
|
|
{
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
log_outcoming_orphan_privmsg (s, target, text->str);
|
|
return;
|
|
}
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
char *prefixes = irc_get_privmsg_prefix
|
|
(s, str_map_find (&s->irc_users, nickname), target);
|
|
|
|
// IRCv3.2 echo-message could otherwise cause us to highlight ourselves
|
|
if (irc_is_this_us (s, msg->prefix) || !irc_is_highlight (s, text->str))
|
|
{
|
|
if (is_action)
|
|
log_outcoming_action (s, buffer, nickname, text->str);
|
|
else
|
|
log_outcoming_privmsg (s, buffer, prefixes, nickname, text->str);
|
|
}
|
|
else if (is_action)
|
|
log_server (s, buffer, BUFFER_LINE_HIGHLIGHT,
|
|
" #a*#r #n #m", ATTR_HIGHLIGHT, msg->prefix, text->str);
|
|
else
|
|
log_server (s, buffer, BUFFER_LINE_HIGHLIGHT,
|
|
"#a<#S#S>#r #m", ATTR_HIGHLIGHT, prefixes, nickname, text->str);
|
|
|
|
free (nickname);
|
|
free (prefixes);
|
|
}
|
|
|
|
static void
|
|
irc_handle_privmsg (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
// This ignores empty messages which we should never receive anyway
|
|
struct ctcp_chunk *chunks = ctcp_parse (msg->params.vector[1]);
|
|
LIST_FOR_EACH (struct ctcp_chunk, iter, chunks)
|
|
if (!iter->is_extended)
|
|
irc_handle_privmsg_text (s, msg, &iter->text, false);
|
|
else if (!strcmp (iter->tag.str, "ACTION"))
|
|
irc_handle_privmsg_text (s, msg, &iter->text, true);
|
|
else
|
|
irc_handle_ctcp_request (s, msg, iter);
|
|
ctcp_destroy (chunks);
|
|
}
|
|
|
|
static void
|
|
log_quit (struct server *s,
|
|
struct buffer *buffer, const char *prefix, const char *reason)
|
|
{
|
|
struct formatter f = formatter_make (s->ctx, s);
|
|
formatter_add (&f, "#a<--#r #N #a#s#r",
|
|
ATTR_PART, prefix, ATTR_PART, "has quit");
|
|
if (reason)
|
|
formatter_add (&f, " (#m)", reason);
|
|
log_formatter (s->ctx, buffer, BUFFER_LINE_UNIMPORTANT, &f);
|
|
}
|
|
|
|
static void
|
|
irc_handle_quit (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix)
|
|
return;
|
|
|
|
// What the fuck, the server never sends this back
|
|
if (irc_is_this_us (s, msg->prefix))
|
|
return;
|
|
|
|
char *nickname = irc_cut_nickname (msg->prefix);
|
|
struct user *user = str_map_find (&s->irc_users, nickname);
|
|
free (nickname);
|
|
if (!user)
|
|
return;
|
|
|
|
const char *message = NULL;
|
|
if (msg->params.len > 0)
|
|
message = msg->params.vector[0];
|
|
|
|
// Log a message in any PM buffer
|
|
struct buffer *buffer =
|
|
str_map_find (&s->irc_buffer_map, user->nickname);
|
|
if (buffer)
|
|
{
|
|
log_quit (s, buffer, msg->prefix, message);
|
|
|
|
// TODO: set some kind of a flag in the buffer and when the user
|
|
// reappears on a channel (JOIN), log a "is back online" message.
|
|
// Also set this flag when we receive a "no such nick" numeric
|
|
// and reset it when we send something to the buffer.
|
|
}
|
|
|
|
// Log a message in all channels the user is in
|
|
LIST_FOR_EACH (struct user_channel, iter, user->channels)
|
|
{
|
|
if ((buffer = str_map_find (&s->irc_buffer_map, iter->channel->name)))
|
|
log_quit (s, buffer, msg->prefix, message);
|
|
|
|
// This destroys "iter" which doesn't matter to us
|
|
irc_remove_user_from_channel (user, iter->channel);
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_topic (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (!msg->prefix || msg->params.len < 2)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[0];
|
|
const char *topic = msg->params.vector[1];
|
|
if (!irc_is_channel (s, channel_name))
|
|
return;
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
// It would be weird for this to be false
|
|
if (channel)
|
|
cstr_set (&channel->topic, xstrdup (topic));
|
|
|
|
if (buffer)
|
|
{
|
|
log_server (s, buffer, BUFFER_LINE_STATUS, "#n #s \"#m\"",
|
|
msg->prefix, "has changed the topic to", topic);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static struct irc_handler g_irc_handlers[] =
|
|
{
|
|
// This list needs to stay sorted
|
|
{ "CAP", irc_handle_cap },
|
|
{ "ERROR", irc_handle_error },
|
|
{ "INVITE", irc_handle_invite },
|
|
{ "JOIN", irc_handle_join },
|
|
{ "KICK", irc_handle_kick },
|
|
{ "KILL", irc_handle_kill },
|
|
{ "MODE", irc_handle_mode },
|
|
{ "NICK", irc_handle_nick },
|
|
{ "NOTICE", irc_handle_notice },
|
|
{ "PART", irc_handle_part },
|
|
{ "PING", irc_handle_ping },
|
|
{ "PRIVMSG", irc_handle_privmsg },
|
|
{ "QUIT", irc_handle_quit },
|
|
{ "TOPIC", irc_handle_topic },
|
|
};
|
|
|
|
static bool
|
|
irc_try_parse_word_for_userhost (struct server *s, const char *word)
|
|
{
|
|
regex_t re;
|
|
int err = regcomp (&re, "^[^!@]+!([^!@]+@[^!@]+)$", REG_EXTENDED);
|
|
if (!soft_assert (!err))
|
|
return false;
|
|
|
|
regmatch_t matches[2];
|
|
bool result = false;
|
|
if (!regexec (&re, word, 2, matches, 0))
|
|
{
|
|
cstr_set (&s->irc_user_host, xstrndup (word + matches[1].rm_so,
|
|
matches[1].rm_eo - matches[1].rm_so));
|
|
result = true;
|
|
}
|
|
regfree (&re);
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
irc_try_parse_welcome_for_userhost (struct server *s, const char *m)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (m, " ", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
if (irc_try_parse_word_for_userhost (s, v.vector[i]))
|
|
break;
|
|
strv_free (&v);
|
|
}
|
|
|
|
static bool process_input_utf8
|
|
(struct app_context *, struct buffer *, const char *, int);
|
|
static void on_autoaway_timer (struct app_context *ctx);
|
|
|
|
static void
|
|
irc_on_registered (struct server *s, const char *nickname)
|
|
{
|
|
s->irc_user = irc_get_or_make_user (s, nickname);
|
|
str_reset (&s->irc_user_mode);
|
|
cstr_set (&s->irc_user_host, NULL);
|
|
|
|
s->state = IRC_REGISTERED;
|
|
refresh_prompt (s->ctx);
|
|
|
|
// XXX: we can also use WHOIS if it's not supported (optional by RFC 2812)
|
|
// TODO: maybe rather always use RPL_ISUPPORT NICKLEN & USERLEN & HOSTLEN
|
|
// since we don't seem to follow any subsequent changes in userhost;
|
|
// unrealircd sends RPL_HOSTHIDDEN (396), which has an optional user part,
|
|
// and there is also CAP CHGHOST which /may/ send it to ourselves
|
|
irc_send (s, "USERHOST %s", s->irc_user->nickname);
|
|
|
|
// A little hack that reinstates auto-away status when we get disconnected
|
|
if (s->autoaway_active)
|
|
on_autoaway_timer (s->ctx);
|
|
|
|
const char *command = get_config_string (s->config, "command");
|
|
if (command)
|
|
{
|
|
log_server_debug (s, "Executing \"#s\"", command);
|
|
process_input_utf8 (s->ctx, s->buffer, command, 0);
|
|
}
|
|
|
|
int64_t command_delay = get_config_integer (s->config, "command_delay");
|
|
log_server_debug (s, "Autojoining channels in #&s seconds...",
|
|
xstrdup_printf ("%" PRId64, command_delay));
|
|
poller_timer_set (&s->autojoin_tmr, command_delay * 1000);
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_userhost (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
const char *response = msg->params.vector[1];
|
|
struct strv v = strv_make ();
|
|
cstr_split (response, " ", true, &v);
|
|
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
char *nick = v.vector[i];
|
|
char *equals = strchr (nick, '=');
|
|
|
|
if (!equals || equals == nick)
|
|
continue;
|
|
|
|
// User is an IRC operator
|
|
if (equals[-1] == '*')
|
|
equals[-1] = '\0';
|
|
else
|
|
equals[ 0] = '\0';
|
|
|
|
// TODO: make use of this (away status polling?)
|
|
char away_status = equals[1];
|
|
if (!strchr ("+-", away_status))
|
|
continue;
|
|
|
|
char *userhost = equals + 2;
|
|
if (irc_is_this_us (s, nick))
|
|
cstr_set (&s->irc_user_host, xstrdup (userhost));
|
|
}
|
|
strv_free (&v);
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_umodeis (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
str_reset (&s->irc_user_mode);
|
|
irc_handle_mode_user (s, msg->params.vector + 1);
|
|
|
|
// XXX: do we want to log a message?
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_namreply (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 4)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[2];
|
|
const char *nicks = msg->params.vector[3];
|
|
|
|
// Just push the nicknames to a string vector to process later
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
if (channel)
|
|
cstr_split (nicks, " ", true, &channel->names_buf);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct channel_user_sort_entry
|
|
{
|
|
struct server *s; ///< Server (because of the qsort API)
|
|
struct channel_user *channel_user; ///< Channel user
|
|
};
|
|
|
|
static int
|
|
channel_user_sort_entry_cmp (const void *entry_a, const void *entry_b)
|
|
{
|
|
const struct channel_user_sort_entry *a = entry_a;
|
|
const struct channel_user_sort_entry *b = entry_b;
|
|
struct server *s = a->s;
|
|
|
|
// First order by the most significant channel user prefix
|
|
const char *prio_a = strchr (s->irc_chanuser_prefixes,
|
|
a->channel_user->prefixes[0]);
|
|
const char *prio_b = strchr (s->irc_chanuser_prefixes,
|
|
b->channel_user->prefixes[0]);
|
|
|
|
// Put unrecognized prefixes at the end of the list
|
|
if (prio_a || prio_b)
|
|
{
|
|
if (!prio_a) return 1;
|
|
if (!prio_b) return -1;
|
|
|
|
if (prio_a != prio_b)
|
|
return prio_a - prio_b;
|
|
}
|
|
|
|
return irc_server_strcmp (s,
|
|
a->channel_user->user->nickname,
|
|
b->channel_user->user->nickname);
|
|
}
|
|
|
|
static char *
|
|
make_channel_users_list (struct server *s, struct channel *channel)
|
|
{
|
|
size_t n_users = 0;
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
n_users++;
|
|
|
|
struct channel_user_sort_entry entries[n_users];
|
|
size_t i = 0;
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
{
|
|
entries[i].s = s;
|
|
entries[i].channel_user = iter;
|
|
i++;
|
|
}
|
|
|
|
qsort (entries, n_users, sizeof *entries, channel_user_sort_entry_cmp);
|
|
|
|
struct str list = str_make ();
|
|
for (i = 0; i < n_users; i++)
|
|
{
|
|
irc_get_channel_user_prefix (s, entries[i].channel_user, &list);
|
|
str_append (&list, entries[i].channel_user->user->nickname);
|
|
str_append_c (&list, ' ');
|
|
}
|
|
if (list.len)
|
|
list.str[--list.len] = '\0';
|
|
return str_steal (&list);
|
|
}
|
|
|
|
static void
|
|
irc_sync_channel_user (struct server *s, struct channel *channel,
|
|
const char *nickname, const char *prefixes)
|
|
{
|
|
struct user *user = irc_get_or_make_user (s, nickname);
|
|
struct channel_user *channel_user =
|
|
irc_channel_get_user (channel, user);
|
|
if (!channel_user)
|
|
{
|
|
irc_channel_link_user (channel, user, prefixes);
|
|
return;
|
|
}
|
|
|
|
user_unref (user);
|
|
|
|
// If our idea of the user's modes disagrees with what the server's
|
|
// sent us (the most powerful modes differ), use the latter one
|
|
if (channel_user->prefixes[0] != prefixes[0])
|
|
cstr_set (&channel_user->prefixes, xstrdup (prefixes));
|
|
}
|
|
|
|
static void
|
|
irc_process_names (struct server *s, struct channel *channel)
|
|
{
|
|
struct str_map present = str_map_make (NULL);
|
|
present.key_xfrm = s->irc_strxfrm;
|
|
|
|
struct strv *updates = &channel->names_buf;
|
|
for (size_t i = 0; i < updates->len; i++)
|
|
{
|
|
const char *item = updates->vector[i];
|
|
size_t n_prefixes = strspn (item, s->irc_chanuser_prefixes);
|
|
const char *nickname = item + n_prefixes;
|
|
|
|
// Store the nickname in a hashset
|
|
str_map_set (&present, nickname, (void *) 1);
|
|
|
|
char *prefixes = xstrndup (item, n_prefixes);
|
|
irc_sync_channel_user (s, channel, nickname, prefixes);
|
|
free (prefixes);
|
|
}
|
|
|
|
// Get rid of channel users missing from "updates"
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
if (!str_map_find (&present, iter->user->nickname))
|
|
irc_channel_unlink_user (channel, iter);
|
|
|
|
str_map_free (&present);
|
|
strv_reset (&channel->names_buf);
|
|
|
|
char *all_users = make_channel_users_list (s, channel);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel->name);
|
|
if (buffer)
|
|
{
|
|
log_server_status (s, buffer, "Users on #S: #S",
|
|
channel->name, all_users);
|
|
}
|
|
|
|
free (all_users);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_handle_rpl_endofnames (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[1];
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
if (!strcmp (channel_name, "*"))
|
|
{
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_channels);
|
|
struct channel *channel;
|
|
while ((channel = str_map_iter_next (&iter)))
|
|
irc_process_names (s, channel);
|
|
}
|
|
else if (channel)
|
|
irc_process_names (s, channel);
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_topic (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 3)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[1];
|
|
const char *topic = msg->params.vector[2];
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
if (channel)
|
|
cstr_set (&channel->topic, xstrdup (topic));
|
|
|
|
if (buffer)
|
|
log_server_status (s, buffer, "The topic is: #m", topic);
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_channelmodeis (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[1];
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
if (channel)
|
|
{
|
|
str_reset (&channel->no_param_modes);
|
|
str_map_clear (&channel->param_modes);
|
|
|
|
irc_handle_mode_channel (s, channel, msg->params.vector + 1);
|
|
}
|
|
|
|
// XXX: do we want to log a message?
|
|
}
|
|
|
|
static char *
|
|
make_time_string (time_t time)
|
|
{
|
|
char buf[32];
|
|
struct tm tm;
|
|
strftime (buf, sizeof buf, "%a %b %d %Y %T", localtime_r (&time, &tm));
|
|
return xstrdup (buf);
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_creationtime (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 3)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[1];
|
|
const char *creation_time = msg->params.vector[2];
|
|
|
|
unsigned long created;
|
|
if (!xstrtoul (&created, creation_time, 10))
|
|
return;
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
if (buffer)
|
|
{
|
|
log_server_status (s, buffer, "Channel created on #&s",
|
|
make_time_string (created));
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_topicwhotime (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 4)
|
|
return;
|
|
|
|
const char *channel_name = msg->params.vector[1];
|
|
const char *who = msg->params.vector[2];
|
|
const char *change_time = msg->params.vector[3];
|
|
|
|
unsigned long changed;
|
|
if (!xstrtoul (&changed, change_time, 10))
|
|
return;
|
|
|
|
struct channel *channel = str_map_find (&s->irc_channels, channel_name);
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, channel_name);
|
|
hard_assert (channel || !buffer);
|
|
|
|
if (buffer)
|
|
{
|
|
log_server_status (s, buffer, "Topic set by #N on #&s",
|
|
who, make_time_string (changed));
|
|
}
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_inviting (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 3)
|
|
return;
|
|
|
|
const char *nickname = msg->params.vector[1];
|
|
const char *channel_name = msg->params.vector[2];
|
|
|
|
struct buffer *buffer;
|
|
if (!(buffer = str_map_find (&s->irc_buffer_map, channel_name)))
|
|
buffer = s->buffer;
|
|
|
|
log_server_status (s, buffer,
|
|
"You have invited #n to #S", nickname, channel_name);
|
|
}
|
|
|
|
static void
|
|
irc_handle_err_nicknameinuse (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
log_server_error (s, s->buffer,
|
|
"Nickname is already in use: #S", msg->params.vector[1]);
|
|
|
|
// Only do this while we haven't successfully registered yet
|
|
if (s->state != IRC_CONNECTED)
|
|
return;
|
|
|
|
char *nickname = irc_fetch_next_nickname (s);
|
|
if (nickname)
|
|
{
|
|
log_server_status (s, s->buffer, "Retrying with #s...", nickname);
|
|
irc_send (s, "NICK :%s", nickname);
|
|
free (nickname);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_handle_isupport_prefix (struct server *s, char *value)
|
|
{
|
|
char *modes = value;
|
|
char *prefixes = strchr (value, ')');
|
|
size_t n_prefixes = prefixes - modes;
|
|
if (*modes++ != '(' || !prefixes++ || strlen (value) != 2 * n_prefixes--)
|
|
return;
|
|
|
|
cstr_set (&s->irc_chanuser_modes, xstrndup (modes, n_prefixes));
|
|
cstr_set (&s->irc_chanuser_prefixes, xstrndup (prefixes, n_prefixes));
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_casemapping (struct server *s, char *value)
|
|
{
|
|
if (!strcmp (value, "ascii"))
|
|
irc_set_casemapping (s, tolower_ascii, tolower_ascii_strxfrm);
|
|
else if (!strcmp (value, "rfc1459"))
|
|
irc_set_casemapping (s, irc_tolower, irc_strxfrm);
|
|
else if (!strcmp (value, "rfc1459-strict"))
|
|
irc_set_casemapping (s, irc_tolower_strict, irc_strxfrm_strict);
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_chantypes (struct server *s, char *value)
|
|
{
|
|
cstr_set (&s->irc_chantypes, xstrdup (value));
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_idchan (struct server *s, char *value)
|
|
{
|
|
struct str prefixes = str_make ();
|
|
struct strv v = strv_make ();
|
|
cstr_split (value, ",", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
// Not using or validating the numeric part
|
|
const char *pair = v.vector[i];
|
|
const char *colon = strchr (pair, ':');
|
|
if (colon)
|
|
str_append_data (&prefixes, pair, colon - pair);
|
|
}
|
|
strv_free (&v);
|
|
cstr_set (&s->irc_idchan_prefixes, str_steal (&prefixes));
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_statusmsg (struct server *s, char *value)
|
|
{
|
|
cstr_set (&s->irc_statusmsg, xstrdup (value));
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_chanmodes (struct server *s, char *value)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (value, ",", true, &v);
|
|
if (v.len >= 4)
|
|
{
|
|
cstr_set (&s->irc_chanmodes_list, xstrdup (v.vector[0]));
|
|
cstr_set (&s->irc_chanmodes_param_always, xstrdup (v.vector[1]));
|
|
cstr_set (&s->irc_chanmodes_param_when_set, xstrdup (v.vector[2]));
|
|
cstr_set (&s->irc_chanmodes_param_never, xstrdup (v.vector[3]));
|
|
}
|
|
strv_free (&v);
|
|
}
|
|
|
|
static void
|
|
irc_handle_isupport_modes (struct server *s, char *value)
|
|
{
|
|
unsigned long modes;
|
|
if (!*value)
|
|
s->irc_max_modes = UINT_MAX;
|
|
else if (xstrtoul (&modes, value, 10) && modes && modes <= UINT_MAX)
|
|
s->irc_max_modes = modes;
|
|
}
|
|
|
|
static void
|
|
unescape_isupport_value (const char *value, struct str *output)
|
|
{
|
|
const char *alphabet = "0123456789abcdef", *a, *b;
|
|
for (const char *p = value; *p; p++)
|
|
{
|
|
if (p[0] == '\\'
|
|
&& p[1] == 'x'
|
|
&& p[2] && (a = strchr (alphabet, tolower_ascii (p[2])))
|
|
&& p[3] && (b = strchr (alphabet, tolower_ascii (p[3]))))
|
|
{
|
|
str_append_c (output, (a - alphabet) << 4 | (b - alphabet));
|
|
p += 3;
|
|
}
|
|
else
|
|
str_append_c (output, *p);
|
|
}
|
|
}
|
|
|
|
static void
|
|
dispatch_isupport (struct server *s, const char *name, char *value)
|
|
{
|
|
#define MATCH(from, to) if (!strcmp (name, (from))) { (to) (s, value); return; }
|
|
|
|
// TODO: also make use of TARGMAX to split client commands as necessary
|
|
|
|
MATCH ("PREFIX", irc_handle_isupport_prefix);
|
|
MATCH ("CASEMAPPING", irc_handle_isupport_casemapping);
|
|
MATCH ("CHANTYPES", irc_handle_isupport_chantypes);
|
|
MATCH ("IDCHAN", irc_handle_isupport_idchan);
|
|
MATCH ("STATUSMSG", irc_handle_isupport_statusmsg);
|
|
MATCH ("CHANMODES", irc_handle_isupport_chanmodes);
|
|
MATCH ("MODES", irc_handle_isupport_modes);
|
|
|
|
#undef MATCH
|
|
}
|
|
|
|
static void
|
|
irc_handle_rpl_isupport (struct server *s, const struct irc_message *msg)
|
|
{
|
|
if (msg->params.len < 2)
|
|
return;
|
|
|
|
for (size_t i = 1; i < msg->params.len - 1; i++)
|
|
{
|
|
// TODO: if the parameter starts with "-", it resets to default
|
|
char *param = msg->params.vector[i];
|
|
char *value = param + strcspn (param, "=");
|
|
if (*value) *value++ = '\0';
|
|
|
|
struct str value_unescaped = str_make ();
|
|
unescape_isupport_value (value, &value_unescaped);
|
|
dispatch_isupport (s, param, value_unescaped.str);
|
|
str_free (&value_unescaped);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
irc_process_numeric (struct server *s,
|
|
const struct irc_message *msg, unsigned long numeric)
|
|
{
|
|
// Numerics typically have human-readable information
|
|
|
|
// Get rid of the first parameter, if there's any at all,
|
|
// as it contains our nickname and is of no practical use to the user
|
|
struct strv copy = strv_make ();
|
|
strv_append_vector (©, msg->params.vector + !!msg->params.len);
|
|
|
|
struct buffer *buffer = s->buffer;
|
|
int flags = BUFFER_LINE_STATUS;
|
|
switch (numeric)
|
|
{
|
|
case IRC_RPL_WELCOME:
|
|
irc_on_registered (s, msg->params.vector[0]);
|
|
|
|
// We still issue a USERHOST anyway as this is in general unreliable
|
|
if (msg->params.len == 2)
|
|
irc_try_parse_welcome_for_userhost (s, msg->params.vector[1]);
|
|
break;
|
|
|
|
case IRC_RPL_ISUPPORT:
|
|
irc_handle_rpl_isupport (s, msg); break;
|
|
case IRC_RPL_USERHOST:
|
|
irc_handle_rpl_userhost (s, msg); break;
|
|
case IRC_RPL_UMODEIS:
|
|
irc_handle_rpl_umodeis (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_NAMREPLY:
|
|
irc_handle_rpl_namreply (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_ENDOFNAMES:
|
|
irc_handle_rpl_endofnames (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_TOPIC:
|
|
irc_handle_rpl_topic (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_CHANNELMODEIS:
|
|
irc_handle_rpl_channelmodeis (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_CREATIONTIME:
|
|
irc_handle_rpl_creationtime (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_TOPICWHOTIME:
|
|
irc_handle_rpl_topicwhotime (s, msg); buffer = NULL; break;
|
|
case IRC_RPL_INVITING:
|
|
irc_handle_rpl_inviting (s, msg); buffer = NULL; break;
|
|
|
|
case IRC_ERR_NICKNAMEINUSE:
|
|
irc_handle_err_nicknameinuse (s, msg); buffer = NULL; break;
|
|
|
|
// Auto-away spams server buffers with activity
|
|
case IRC_RPL_NOWAWAY:
|
|
flags |= BUFFER_LINE_UNIMPORTANT;
|
|
if (s->irc_user) s->irc_user->away = true;
|
|
break;
|
|
case IRC_RPL_UNAWAY:
|
|
flags |= BUFFER_LINE_UNIMPORTANT;
|
|
if (s->irc_user) s->irc_user->away = false;
|
|
break;
|
|
|
|
case IRC_RPL_LIST:
|
|
case IRC_RPL_WHOREPLY:
|
|
case IRC_RPL_ENDOFWHO:
|
|
|
|
case IRC_ERR_UNKNOWNCOMMAND:
|
|
case IRC_ERR_NEEDMOREPARAMS:
|
|
// Just preventing these commands from getting printed in a more
|
|
// specific buffer as that would be unwanted
|
|
break;
|
|
|
|
default:
|
|
// If the second parameter is something we have a buffer for
|
|
// (a channel, a PM buffer), log it in that buffer. This is very basic.
|
|
// TODO: whitelist/blacklist a lot more replies in here.
|
|
// TODO: we should either strip the first parameter from the resulting
|
|
// buffer line, or at least put it in brackets
|
|
if (msg->params.len > 1)
|
|
{
|
|
struct buffer *x;
|
|
if ((x = str_map_find (&s->irc_buffer_map, msg->params.vector[1])))
|
|
buffer = x;
|
|
}
|
|
}
|
|
|
|
if (buffer)
|
|
{
|
|
// Join the parameter vector back and send it to the server buffer
|
|
log_server (s, buffer, flags, "#&m", strv_join (©, " "));
|
|
}
|
|
|
|
strv_free (©);
|
|
}
|
|
|
|
static void
|
|
irc_process_message (const struct irc_message *msg, struct server *s)
|
|
{
|
|
// TODO: make use of IRCv3.2 server-time (with fallback to unixtime_msec())
|
|
// -> change all calls to log_{server,nick,outcoming,ctcp}*() to take
|
|
// an extra argument specifying time
|
|
struct irc_handler key = { .name = msg->command };
|
|
struct irc_handler *handler = bsearch (&key, g_irc_handlers,
|
|
N_ELEMENTS (g_irc_handlers), sizeof key, irc_handler_cmp_by_name);
|
|
if (handler)
|
|
handler->handler (s, msg);
|
|
|
|
unsigned long numeric;
|
|
if (xstrtoul (&numeric, msg->command, 10))
|
|
irc_process_numeric (s, msg, numeric);
|
|
|
|
// Better always make sure everything is in sync rather than care about
|
|
// each case explicitly whether anything might have changed
|
|
refresh_prompt (s->ctx);
|
|
}
|
|
|
|
// --- Message autosplitting magic ---------------------------------------------
|
|
|
|
// This is the most basic acceptable algorithm; something like ICU with proper
|
|
// locale specification would be needed to make it work better.
|
|
|
|
static size_t
|
|
wrap_text_for_single_line (const char *text, size_t text_len,
|
|
size_t line_len, struct str *output)
|
|
{
|
|
size_t eaten = 0;
|
|
|
|
// First try going word by word
|
|
const char *word_start;
|
|
const char *word_end = text + strcspn (text, " ");
|
|
size_t word_len = word_end - text;
|
|
while (line_len && word_len <= line_len)
|
|
{
|
|
if (word_len)
|
|
{
|
|
str_append_data (output, text, word_len);
|
|
|
|
text += word_len;
|
|
eaten += word_len;
|
|
line_len -= word_len;
|
|
}
|
|
|
|
// Find the next word's end
|
|
word_start = text + strspn (text, " ");
|
|
word_end = word_start + strcspn (word_start, " ");
|
|
word_len = word_end - text;
|
|
}
|
|
|
|
if (eaten)
|
|
// Discard whitespace between words if split
|
|
return eaten + (word_start - text);
|
|
|
|
// And if that doesn't help, cut the longest valid block of characters
|
|
for (const char *p = text; (size_t) (p - text) <= line_len; )
|
|
{
|
|
eaten = p - text;
|
|
hard_assert ((p = utf8_next (p, text_len - eaten, NULL)));
|
|
}
|
|
str_append_data (output, text, eaten);
|
|
return eaten;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
wrap_message (const char *message,
|
|
int line_max, struct strv *output, struct error **e)
|
|
{
|
|
if (line_max <= 0)
|
|
goto error;
|
|
|
|
int message_left = strlen (message);
|
|
while (message_left > line_max)
|
|
{
|
|
struct str m = str_make ();
|
|
|
|
size_t eaten = wrap_text_for_single_line
|
|
(message, message_left, line_max, &m);
|
|
if (!eaten)
|
|
{
|
|
str_free (&m);
|
|
goto error;
|
|
}
|
|
|
|
strv_append_owned (output, str_steal (&m));
|
|
message += eaten;
|
|
message_left -= eaten;
|
|
}
|
|
|
|
if (message_left)
|
|
strv_append (output, message);
|
|
|
|
return true;
|
|
|
|
error:
|
|
// Well, that's just weird
|
|
error_set (e,
|
|
"Message splitting was unsuccessful as there was "
|
|
"too little room for UTF-8 characters");
|
|
return false;
|
|
}
|
|
|
|
/// Automatically splits messages that arrive at other clients with our prefix
|
|
/// so that they don't arrive cut off by the server
|
|
static bool
|
|
irc_autosplit_message (struct server *s, const char *message,
|
|
int fixed_part, struct strv *output, struct error **e)
|
|
{
|
|
// :<nick>!<user>@<host> <fixed-part><message>
|
|
int space_in_one_message = 0;
|
|
if (s->irc_user && s->irc_user_host)
|
|
space_in_one_message = 510
|
|
- 1 - (int) strlen (s->irc_user->nickname)
|
|
- 1 - (int) strlen (s->irc_user_host)
|
|
- 1 - fixed_part;
|
|
|
|
// However we don't always have the full info for message splitting
|
|
if (!space_in_one_message)
|
|
strv_append (output, message);
|
|
else if (!wrap_message (message, space_in_one_message, output, e))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
send_autosplit_message (struct server *s,
|
|
const char *command, const char *target, const char *message,
|
|
const char *prefix, const char *suffix)
|
|
{
|
|
struct buffer *buffer = str_map_find (&s->irc_buffer_map, target);
|
|
int fixed_part = strlen (command) + 1 + strlen (target) + 1 + 1
|
|
+ strlen (prefix) + strlen (suffix);
|
|
|
|
// We might also want to preserve attributes across splits but
|
|
// that would make this code a lot more complicated
|
|
|
|
struct strv lines = strv_make ();
|
|
struct error *e = NULL;
|
|
if (!irc_autosplit_message (s, message, fixed_part, &lines, &e))
|
|
{
|
|
log_server_error (s, buffer ? buffer : s->buffer, "#s", e->message);
|
|
error_free (e);
|
|
}
|
|
else
|
|
{
|
|
for (size_t i = 0; i < lines.len; i++)
|
|
irc_send (s, "%s %s :%s%s%s", command, target,
|
|
prefix, lines.vector[i], suffix);
|
|
}
|
|
strv_free (&lines);
|
|
}
|
|
|
|
#define SEND_AUTOSPLIT_ACTION(s, target, message) \
|
|
send_autosplit_message ((s), "PRIVMSG", (target), (message), \
|
|
"\x01" "ACTION ", "\x01")
|
|
|
|
#define SEND_AUTOSPLIT_PRIVMSG(s, target, message) \
|
|
send_autosplit_message ((s), "PRIVMSG", (target), (message), "", "")
|
|
|
|
#define SEND_AUTOSPLIT_NOTICE(s, target, message) \
|
|
send_autosplit_message ((s), "NOTICE", (target), (message), "", "")
|
|
|
|
// --- Configuration dumper ----------------------------------------------------
|
|
|
|
struct config_dump_data
|
|
{
|
|
struct strv path; ///< Levels
|
|
struct strv *output; ///< Where to place new entries
|
|
};
|
|
|
|
static void config_dump_item
|
|
(struct config_item *item, struct config_dump_data *data);
|
|
|
|
static void
|
|
config_dump_children
|
|
(struct config_item *object, struct config_dump_data *data)
|
|
{
|
|
hard_assert (object->type == CONFIG_ITEM_OBJECT);
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&object->value.object);
|
|
struct config_item *child;
|
|
while ((child = str_map_iter_next (&iter)))
|
|
{
|
|
strv_append_owned (&data->path, iter.link->key);
|
|
config_dump_item (child, data);
|
|
strv_steal (&data->path, data->path.len - 1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
config_dump_item (struct config_item *item, struct config_dump_data *data)
|
|
{
|
|
// Empty objects will show as such
|
|
if (item->type == CONFIG_ITEM_OBJECT
|
|
&& item->value.object.len)
|
|
{
|
|
config_dump_children (item, data);
|
|
return;
|
|
}
|
|
|
|
// Currently there's no reason for us to dump unknown items
|
|
struct config_schema *schema = item->schema;
|
|
if (!schema)
|
|
return;
|
|
|
|
struct str line = str_make ();
|
|
if (data->path.len)
|
|
str_append (&line, data->path.vector[0]);
|
|
for (size_t i = 1; i < data->path.len; i++)
|
|
str_append_printf (&line, ".%s", data->path.vector[i]);
|
|
|
|
struct str value = str_make ();
|
|
config_item_write (item, false, &value);
|
|
|
|
// Don't bother writing out null values everywhere
|
|
bool has_default = schema && schema->default_;
|
|
if (item->type != CONFIG_ITEM_NULL || has_default)
|
|
{
|
|
str_append (&line, " = ");
|
|
str_append_str (&line, &value);
|
|
}
|
|
|
|
if (!schema)
|
|
str_append (&line, " (unrecognized)");
|
|
else if (has_default && strcmp (schema->default_, value.str))
|
|
str_append_printf (&line, " (default: %s)", schema->default_);
|
|
else if (!has_default && item->type != CONFIG_ITEM_NULL)
|
|
str_append_printf (&line, " (default: %s)", "null");
|
|
|
|
str_free (&value);
|
|
strv_append_owned (data->output, str_steal (&line));
|
|
}
|
|
|
|
static void
|
|
config_dump (struct config_item *root, struct strv *output)
|
|
{
|
|
struct config_dump_data data;
|
|
data.path = strv_make ();
|
|
data.output = output;
|
|
|
|
config_dump_item (root, &data);
|
|
|
|
hard_assert (!data.path.len);
|
|
strv_free (&data.path);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
strv_sort_cb (const void *a, const void *b)
|
|
{
|
|
return strcmp (*(const char **) a, *(const char **) b);
|
|
}
|
|
|
|
static void
|
|
strv_sort (struct strv *self)
|
|
{
|
|
qsort (self->vector, self->len, sizeof *self->vector, strv_sort_cb);
|
|
}
|
|
|
|
static void
|
|
dump_matching_options
|
|
(struct config_item *root, const char *mask, struct strv *output)
|
|
{
|
|
config_dump (root, output);
|
|
strv_sort (output);
|
|
|
|
// Filter out results by wildcard matching
|
|
for (size_t i = 0; i < output->len; i++)
|
|
{
|
|
// Yeah, I know
|
|
char *key = cstr_cut_until (output->vector[i], " ");
|
|
if (fnmatch (mask, key, 0))
|
|
strv_remove (output, i--);
|
|
free (key);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
save_configuration (struct app_context *ctx)
|
|
{
|
|
struct str data = str_make ();
|
|
serialize_configuration (ctx->config.root, &data);
|
|
|
|
struct error *e = NULL;
|
|
char *filename = write_configuration_file (NULL, &data, &e);
|
|
str_free (&data);
|
|
|
|
if (!filename)
|
|
{
|
|
log_global_error (ctx,
|
|
"#s: #s", "Saving configuration failed", e->message);
|
|
error_free (e);
|
|
}
|
|
else
|
|
log_global_status (ctx, "Configuration written to `#s'", filename);
|
|
free (filename);
|
|
}
|
|
|
|
// --- Server management -------------------------------------------------------
|
|
|
|
static bool
|
|
validate_server_name (const char *name)
|
|
{
|
|
for (const unsigned char *p = (const unsigned char *) name; *p; p++)
|
|
if (iscntrl_ascii (*p) || *p == '.')
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static const char *
|
|
check_server_name_for_addition (struct app_context *ctx, const char *name)
|
|
{
|
|
if (!strcasecmp_ascii (name, ctx->global_buffer->name))
|
|
return "name collides with the global buffer";
|
|
if (str_map_find (&ctx->servers, name))
|
|
return "server already exists";
|
|
if (!validate_server_name (name))
|
|
return "invalid server name";
|
|
return NULL;
|
|
}
|
|
|
|
static struct server *
|
|
server_add (struct app_context *ctx,
|
|
const char *name, struct config_item *subtree)
|
|
{
|
|
hard_assert (!str_map_find (&ctx->servers, name));
|
|
|
|
struct server *s = server_new (&ctx->poller);
|
|
s->ctx = ctx;
|
|
s->name = xstrdup (name);
|
|
str_map_set (&ctx->servers, s->name, s);
|
|
s->config = subtree;
|
|
|
|
// Add a buffer and activate it
|
|
struct buffer *buffer = s->buffer = buffer_new (ctx->input);
|
|
buffer->type = BUFFER_SERVER;
|
|
buffer->name = xstrdup (s->name);
|
|
buffer->server = s;
|
|
|
|
buffer_add (ctx, buffer);
|
|
buffer_activate (ctx, buffer);
|
|
|
|
config_schema_apply_to_object (g_config_server, subtree, s);
|
|
config_schema_call_changed (subtree);
|
|
|
|
if (get_config_boolean (s->config, "autoconnect"))
|
|
// Connect to the server ASAP
|
|
poller_timer_set (&s->reconnect_tmr, 0);
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
server_add_new (struct app_context *ctx, const char *name)
|
|
{
|
|
// Note that there may already be something in the configuration under
|
|
// that key that we've ignored earlier, and there may also be
|
|
// a case-insensitive conflict. Those things may only happen as a result
|
|
// of manual edits to the configuration, though, and they're not really
|
|
// going to break anything. They only cause surprises when loading.
|
|
struct str_map *servers = get_servers_config (ctx);
|
|
struct config_item *subtree = config_item_object ();
|
|
str_map_set (servers, name, subtree);
|
|
|
|
struct server *s = server_add (ctx, name, subtree);
|
|
struct error *e = NULL;
|
|
if (!irc_autofill_user_info (s, &e))
|
|
{
|
|
log_server_error (s, s->buffer,
|
|
"#s: #s", "Failed to fill in user details", e->message);
|
|
error_free (e);
|
|
}
|
|
}
|
|
|
|
static void
|
|
server_remove (struct app_context *ctx, struct server *s)
|
|
{
|
|
hard_assert (!irc_is_connected (s));
|
|
|
|
if (s->buffer)
|
|
buffer_remove_safe (ctx, s->buffer);
|
|
|
|
struct str_map_unset_iter iter =
|
|
str_map_unset_iter_make (&s->irc_buffer_map);
|
|
struct buffer *buffer;
|
|
while ((buffer = str_map_unset_iter_next (&iter)))
|
|
buffer_remove_safe (ctx, buffer);
|
|
str_map_unset_iter_free (&iter);
|
|
|
|
hard_assert (!s->buffer);
|
|
hard_assert (!s->irc_buffer_map.len);
|
|
hard_assert (!s->irc_channels.len);
|
|
soft_assert (!s->irc_users.len);
|
|
|
|
str_map_set (get_servers_config (ctx), s->name, NULL);
|
|
s->config = NULL;
|
|
|
|
// This actually destroys the server as it's owned by the map
|
|
str_map_set (&ctx->servers, s->name, NULL);
|
|
}
|
|
|
|
static void
|
|
server_rename (struct app_context *ctx, struct server *s, const char *new_name)
|
|
{
|
|
str_map_set (&ctx->servers, new_name,
|
|
str_map_steal (&ctx->servers, s->name));
|
|
|
|
struct str_map *servers = get_servers_config (ctx);
|
|
str_map_set (servers, new_name, str_map_steal (servers, s->name));
|
|
|
|
cstr_set (&s->name, xstrdup (new_name));
|
|
buffer_rename (ctx, s->buffer, new_name);
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&s->irc_buffer_map);
|
|
struct buffer *buffer;
|
|
while ((buffer = str_map_iter_next (&iter)))
|
|
{
|
|
// TODO: creation of buffer names should be centralized -> replace
|
|
// calls to buffer_rename() and manual setting of buffer names
|
|
// with something like buffer_autorename() -- just mind the mess
|
|
// in irc_handle_nick(), which can hopefully be simplified
|
|
char *x = NULL;
|
|
switch (buffer->type)
|
|
{
|
|
case BUFFER_PM:
|
|
x = xstrdup_printf ("%s.%s", s->name, buffer->user->nickname);
|
|
break;
|
|
case BUFFER_CHANNEL:
|
|
x = xstrdup_printf ("%s.%s", s->name, buffer->channel->name);
|
|
break;
|
|
default:
|
|
hard_assert (!"unexpected type of server-related buffer");
|
|
}
|
|
buffer_rename (ctx, buffer, x);
|
|
free (x);
|
|
}
|
|
}
|
|
|
|
// --- Plugins -----------------------------------------------------------------
|
|
|
|
/// Returns the basename of the plugin's name without any extensions,
|
|
/// or NULL if the name isn't suitable (starts with a dot)
|
|
static char *
|
|
plugin_config_name (struct plugin *self)
|
|
{
|
|
const char *begin = self->name;
|
|
for (const char *p = begin; *p; )
|
|
if (*p++ == '/')
|
|
begin = p;
|
|
|
|
size_t len = strcspn (begin, ".");
|
|
if (!len)
|
|
return NULL;
|
|
|
|
// XXX: we might also allow arbitrary strings as object keys (except dots)
|
|
char *copy = xstrndup (begin, len);
|
|
for (char *p = copy; *p; p++)
|
|
if (!config_tokenizer_is_word_char (*p))
|
|
*p = '_';
|
|
return copy;
|
|
}
|
|
|
|
// --- Lua ---------------------------------------------------------------------
|
|
|
|
// Each plugin has its own Lua state object, so that a/ they don't disturb each
|
|
// other and b/ unloading a plugin releases all resources.
|
|
//
|
|
// References to internal objects (buffers, servers) are all weak.
|
|
|
|
#ifdef HAVE_LUA
|
|
|
|
struct lua_plugin
|
|
{
|
|
struct plugin super; ///< The structure we're deriving
|
|
struct app_context *ctx; ///< Application context
|
|
lua_State *L; ///< Lua state for the main thread
|
|
|
|
struct lua_schema_item *schemas; ///< Registered schema items
|
|
};
|
|
|
|
static void
|
|
lua_plugin_free (struct plugin *self_)
|
|
{
|
|
struct lua_plugin *self = (struct lua_plugin *) self_;
|
|
lua_close (self->L);
|
|
}
|
|
|
|
struct plugin_vtable lua_plugin_vtable =
|
|
{
|
|
.free = lua_plugin_free,
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// The registry can be used as a cache for weakly referenced objects
|
|
|
|
static bool
|
|
lua_cache_get (lua_State *L, void *object)
|
|
{
|
|
lua_rawgetp (L, LUA_REGISTRYINDEX, object);
|
|
if (lua_isnil (L, -1))
|
|
{
|
|
lua_pop (L, 1);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
lua_cache_store (lua_State *L, void *object, int index)
|
|
{
|
|
lua_pushvalue (L, index);
|
|
lua_rawsetp (L, LUA_REGISTRYINDEX, object);
|
|
}
|
|
|
|
static void
|
|
lua_cache_invalidate (lua_State *L, void *object)
|
|
{
|
|
lua_pushnil (L);
|
|
lua_rawsetp (L, LUA_REGISTRYINDEX, object);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
/// Append a traceback to all errors so that we can later extract it
|
|
static int
|
|
lua_plugin_error_handler (lua_State *L)
|
|
{
|
|
luaL_traceback (L, L, luaL_checkstring (L, 1), 1);
|
|
return 1;
|
|
}
|
|
|
|
static bool
|
|
lua_plugin_process_error (struct lua_plugin *self, const char *message,
|
|
struct error **e)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (message, "\n", true, &v);
|
|
|
|
if (v.len < 2)
|
|
error_set (e, "%s", message);
|
|
else
|
|
{
|
|
error_set (e, "%s", v.vector[0]);
|
|
log_global_debug (self->ctx, "Lua: plugin \"#s\": #s",
|
|
self->super.name, v.vector[1]);
|
|
for (size_t i = 2; i < v.len; i++)
|
|
log_global_debug (self->ctx, " #s", v.vector[i]);
|
|
}
|
|
|
|
strv_free (&v);
|
|
return false;
|
|
}
|
|
|
|
/// Call a Lua function and process errors using our special error handler
|
|
static bool
|
|
lua_plugin_call (struct lua_plugin *self,
|
|
int n_params, int n_results, struct error **e)
|
|
{
|
|
// XXX: this may eventually be called from a thread, then this is wrong
|
|
lua_State *L = self->L;
|
|
|
|
// We need to pop the error handler at the end
|
|
lua_pushcfunction (L, lua_plugin_error_handler);
|
|
int error_handler_idx = -n_params - 2;
|
|
lua_insert (L, error_handler_idx);
|
|
|
|
if (!lua_pcall (L, n_params, n_results, error_handler_idx))
|
|
{
|
|
lua_remove (L, -n_results - 1);
|
|
return true;
|
|
}
|
|
|
|
(void) lua_plugin_process_error (self, lua_tostring (L, -1), e);
|
|
lua_pop (L, 2);
|
|
return false;
|
|
}
|
|
|
|
/// Convenience function; replaces the "original" string or produces an error
|
|
static bool
|
|
lua_plugin_handle_string_filter_result (struct lua_plugin *self,
|
|
char **original, bool utf8, struct error **e)
|
|
{
|
|
lua_State *L = self->L;
|
|
if (lua_isnil (L, -1))
|
|
{
|
|
cstr_set (original, NULL);
|
|
return true;
|
|
}
|
|
if (!lua_isstring (L, -1))
|
|
return error_set (e, "must return either a string or nil");
|
|
|
|
size_t len;
|
|
const char *processed = lua_tolstring (L, -1, &len);
|
|
if (utf8 && !utf8_validate (processed, len))
|
|
return error_set (e, "must return valid UTF-8");
|
|
|
|
// Only replace the string if it's different
|
|
if (strcmp (processed, *original))
|
|
cstr_set (original, xstrdup (processed));
|
|
return true;
|
|
}
|
|
|
|
static const char *
|
|
lua_plugin_check_utf8 (lua_State *L, int arg)
|
|
{
|
|
size_t len;
|
|
const char *s = luaL_checklstring (L, arg, &len);
|
|
luaL_argcheck (L, utf8_validate (s, len), arg, "must be valid UTF-8");
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
lua_plugin_log_error
|
|
(struct lua_plugin *self, const char *where, struct error *error)
|
|
{
|
|
log_global_error (self->ctx, "Lua: plugin \"#s\": #s: #s",
|
|
self->super.name, where, error->message);
|
|
error_free (error);
|
|
}
|
|
|
|
/// Pop "n" values from the stack into a table, using their indexes as keys
|
|
static void
|
|
lua_plugin_pack (lua_State *L, int n)
|
|
{
|
|
lua_createtable (L, n, 0);
|
|
lua_insert (L, -n - 1);
|
|
for (int i = n; i; i--)
|
|
lua_rawseti (L, -i - 1, i);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
lua_plugin_kv (lua_State *L, const char *key, const char *value)
|
|
{
|
|
lua_pushstring (L, value);
|
|
lua_setfield (L, -2, key);
|
|
}
|
|
|
|
static void
|
|
lua_plugin_push_message (lua_State *L, const struct irc_message *msg)
|
|
{
|
|
lua_createtable (L, 0, 4);
|
|
|
|
lua_createtable (L, msg->tags.len, 0);
|
|
struct str_map_iter iter = str_map_iter_make (&msg->tags);
|
|
const char *value;
|
|
while ((value = str_map_iter_next (&iter)))
|
|
lua_plugin_kv (L, iter.link->key, value);
|
|
lua_setfield (L, -2, "tags");
|
|
|
|
// TODO: parse the prefix further?
|
|
if (msg->prefix) lua_plugin_kv (L, "prefix", msg->prefix);
|
|
if (msg->command) lua_plugin_kv (L, "command", msg->command);
|
|
|
|
lua_createtable (L, msg->params.len, 0);
|
|
for (size_t i = 0; i < msg->params.len; i++)
|
|
{
|
|
lua_pushstring (L, msg->params.vector[i]);
|
|
lua_rawseti (L, -2, i + 1);
|
|
}
|
|
lua_setfield (L, -2, "params");
|
|
}
|
|
|
|
static int
|
|
lua_plugin_parse (lua_State *L)
|
|
{
|
|
struct irc_message msg;
|
|
irc_parse_message (&msg, luaL_checkstring (L, 1));
|
|
lua_plugin_push_message (L, &msg);
|
|
irc_free_message (&msg);
|
|
return 1;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// Lua code can use weakly referenced wrappers for internal objects.
|
|
|
|
typedef struct weak_ref_link *
|
|
(*lua_weak_ref_fn) (void *object, destroy_cb_fn cb, void *user_data);
|
|
typedef void (*lua_weak_unref_fn) (void *object, struct weak_ref_link **link);
|
|
|
|
struct lua_weak_info
|
|
{
|
|
const char *name; ///< Metatable name
|
|
struct ispect_field *ispect; ///< Introspection data
|
|
|
|
lua_weak_ref_fn ref; ///< Weak link invalidator
|
|
lua_weak_unref_fn unref; ///< Weak link generator
|
|
};
|
|
|
|
struct lua_weak
|
|
{
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
struct lua_weak_info *info; ///< Introspection data
|
|
void *object; ///< The object
|
|
struct weak_ref_link *weak_ref; ///< A weak reference link
|
|
};
|
|
|
|
static void
|
|
lua_weak_invalidate (void *object, void *user_data)
|
|
{
|
|
struct lua_weak *wrapper = user_data;
|
|
wrapper->object = NULL;
|
|
wrapper->weak_ref = NULL;
|
|
// This can in theory call the GC, order isn't arbitrary here
|
|
lua_cache_invalidate (wrapper->plugin->L, object);
|
|
}
|
|
|
|
static void
|
|
lua_weak_push (lua_State *L, struct lua_plugin *plugin, void *object,
|
|
struct lua_weak_info *info)
|
|
{
|
|
if (!object)
|
|
{
|
|
lua_pushnil (L);
|
|
return;
|
|
}
|
|
if (lua_cache_get (L, object))
|
|
return;
|
|
|
|
struct lua_weak *wrapper = lua_newuserdata (L, sizeof *wrapper);
|
|
luaL_setmetatable (L, info->name);
|
|
wrapper->plugin = plugin;
|
|
wrapper->info = info;
|
|
wrapper->object = object;
|
|
wrapper->weak_ref = NULL;
|
|
if (info->ref)
|
|
wrapper->weak_ref = info->ref (object, lua_weak_invalidate, wrapper);
|
|
lua_cache_store (L, object, -1);
|
|
}
|
|
|
|
static int
|
|
lua_weak_gc (lua_State *L, const struct lua_weak_info *info)
|
|
{
|
|
struct lua_weak *wrapper = luaL_checkudata (L, 1, info->name);
|
|
if (wrapper->object)
|
|
{
|
|
lua_cache_invalidate (L, wrapper->object);
|
|
if (info->unref)
|
|
info->unref (wrapper->object, &wrapper->weak_ref);
|
|
wrapper->object = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct lua_weak *
|
|
lua_weak_deref (lua_State *L, const struct lua_weak_info *info)
|
|
{
|
|
struct lua_weak *weak = luaL_checkudata (L, 1, info->name);
|
|
luaL_argcheck (L, weak->object, 1, "dead reference used");
|
|
return weak;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
#define LUA_WEAK_DECLARE(id, metatable_id) \
|
|
static struct lua_weak_info lua_ ## id ## _info = \
|
|
{ \
|
|
.name = metatable_id, \
|
|
.ispect = g_ ## id ## _ispect, \
|
|
.ref = (lua_weak_ref_fn) id ## _weak_ref, \
|
|
.unref = (lua_weak_unref_fn) id ## _weak_unref, \
|
|
};
|
|
|
|
#define XLUA_USER_METATABLE "user" ///< Identifier for Lua metatable
|
|
#define XLUA_CHANNEL_METATABLE "channel" ///< Identifier for Lua metatable
|
|
#define XLUA_BUFFER_METATABLE "buffer" ///< Identifier for Lua metatable
|
|
#define XLUA_SERVER_METATABLE "server" ///< Identifier for Lua metatable
|
|
|
|
LUA_WEAK_DECLARE (user, XLUA_USER_METATABLE)
|
|
LUA_WEAK_DECLARE (channel, XLUA_CHANNEL_METATABLE)
|
|
LUA_WEAK_DECLARE (buffer, XLUA_BUFFER_METATABLE)
|
|
LUA_WEAK_DECLARE (server, XLUA_SERVER_METATABLE)
|
|
|
|
// The global context is kind of fake and doesn't have any ref-counting,
|
|
// however it's still very much an object
|
|
static struct lua_weak_info lua_ctx_info =
|
|
{
|
|
.name = PROGRAM_NAME,
|
|
.ispect = g_ctx_ispect,
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_user_gc (lua_State *L)
|
|
{
|
|
return lua_weak_gc (L, &lua_user_info);
|
|
}
|
|
|
|
static int
|
|
lua_user_get_channels (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_user_info);
|
|
struct user *user = wrapper->object;
|
|
|
|
int i = 1;
|
|
lua_newtable (L);
|
|
LIST_FOR_EACH (struct user_channel, iter, user->channels)
|
|
{
|
|
lua_weak_push (L, wrapper->plugin, iter->channel, &lua_channel_info);
|
|
lua_rawseti (L, -2, i++);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static luaL_Reg lua_user_table[] =
|
|
{
|
|
{ "__gc", lua_user_gc },
|
|
{ "get_channels", lua_user_get_channels },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_channel_gc (lua_State *L)
|
|
{
|
|
return lua_weak_gc (L, &lua_channel_info);
|
|
}
|
|
|
|
static int
|
|
lua_channel_get_users (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_channel_info);
|
|
struct channel *channel = wrapper->object;
|
|
|
|
int i = 1;
|
|
lua_newtable (L);
|
|
LIST_FOR_EACH (struct channel_user, iter, channel->users)
|
|
{
|
|
lua_createtable (L, 0, 2);
|
|
lua_weak_push (L, wrapper->plugin, iter->user, &lua_user_info);
|
|
lua_setfield (L, -2, "user");
|
|
lua_plugin_kv (L, "prefixes", iter->prefixes);
|
|
|
|
lua_rawseti (L, -2, i++);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static luaL_Reg lua_channel_table[] =
|
|
{
|
|
{ "__gc", lua_channel_gc },
|
|
{ "get_users", lua_channel_get_users },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_buffer_gc (lua_State *L)
|
|
{
|
|
return lua_weak_gc (L, &lua_buffer_info);
|
|
}
|
|
|
|
static int
|
|
lua_buffer_log (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_buffer_info);
|
|
struct buffer *buffer = wrapper->object;
|
|
const char *message = lua_plugin_check_utf8 (L, 2);
|
|
log_full (wrapper->plugin->ctx, buffer->server, buffer,
|
|
BUFFER_LINE_STATUS, "#s", message);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lua_buffer_execute (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_buffer_info);
|
|
struct buffer *buffer = wrapper->object;
|
|
const char *line = lua_plugin_check_utf8 (L, 2);
|
|
process_input_utf8 (wrapper->plugin->ctx, buffer, line, 0);
|
|
return 0;
|
|
}
|
|
|
|
static luaL_Reg lua_buffer_table[] =
|
|
{
|
|
{ "__gc", lua_buffer_gc },
|
|
{ "log", lua_buffer_log },
|
|
{ "execute", lua_buffer_execute },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_server_gc (lua_State *L)
|
|
{
|
|
return lua_weak_gc (L, &lua_server_info);
|
|
}
|
|
|
|
static int
|
|
lua_server_get_state (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_server_info);
|
|
struct server *server = wrapper->object;
|
|
switch (server->state)
|
|
{
|
|
case IRC_DISCONNECTED: lua_pushstring (L, "disconnected"); break;
|
|
case IRC_CONNECTING: lua_pushstring (L, "connecting"); break;
|
|
case IRC_CONNECTED: lua_pushstring (L, "connected"); break;
|
|
case IRC_REGISTERED: lua_pushstring (L, "registered"); break;
|
|
case IRC_CLOSING: lua_pushstring (L, "closing"); break;
|
|
case IRC_HALF_CLOSED: lua_pushstring (L, "half_closed"); break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_server_send (lua_State *L)
|
|
{
|
|
struct lua_weak *wrapper = lua_weak_deref (L, &lua_server_info);
|
|
struct server *server = wrapper->object;
|
|
irc_send (server, "%s", luaL_checkstring (L, 2));
|
|
return 0;
|
|
}
|
|
|
|
static luaL_Reg lua_server_table[] =
|
|
{
|
|
{ "__gc", lua_server_gc },
|
|
{ "get_state", lua_server_get_state },
|
|
{ "send", lua_server_send },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
#define XLUA_HOOK_METATABLE "hook" ///< Identifier for the Lua metatable
|
|
|
|
enum lua_hook_type
|
|
{
|
|
XLUA_HOOK_DEFUNCT, ///< No longer functional
|
|
XLUA_HOOK_INPUT, ///< Input hook
|
|
XLUA_HOOK_IRC, ///< IRC hook
|
|
XLUA_HOOK_PROMPT, ///< Prompt hook
|
|
XLUA_HOOK_COMPLETION, ///< Autocomplete
|
|
};
|
|
|
|
struct lua_hook
|
|
{
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
enum lua_hook_type type; ///< Type of the hook
|
|
int ref_callback; ///< Reference to the callback
|
|
union
|
|
{
|
|
struct hook hook; ///< Hook base structure
|
|
struct input_hook input_hook; ///< Input hook
|
|
struct irc_hook irc_hook; ///< IRC hook
|
|
struct prompt_hook prompt_hook; ///< IRC hook
|
|
struct completion_hook c_hook; ///< Autocomplete hook
|
|
}
|
|
data; ///< Hook data
|
|
};
|
|
|
|
static int
|
|
lua_hook_unhook (lua_State *L)
|
|
{
|
|
struct lua_hook *hook = luaL_checkudata (L, 1, XLUA_HOOK_METATABLE);
|
|
switch (hook->type)
|
|
{
|
|
case XLUA_HOOK_INPUT:
|
|
LIST_UNLINK (hook->plugin->ctx->input_hooks, &hook->data.hook);
|
|
break;
|
|
case XLUA_HOOK_IRC:
|
|
LIST_UNLINK (hook->plugin->ctx->irc_hooks, &hook->data.hook);
|
|
break;
|
|
case XLUA_HOOK_PROMPT:
|
|
LIST_UNLINK (hook->plugin->ctx->prompt_hooks, &hook->data.hook);
|
|
refresh_prompt (hook->plugin->ctx);
|
|
break;
|
|
case XLUA_HOOK_COMPLETION:
|
|
LIST_UNLINK (hook->plugin->ctx->completion_hooks, &hook->data.hook);
|
|
break;
|
|
default:
|
|
hard_assert (!"invalid hook type");
|
|
case XLUA_HOOK_DEFUNCT:
|
|
break;
|
|
}
|
|
|
|
luaL_unref (L, LUA_REGISTRYINDEX, hook->ref_callback);
|
|
hook->ref_callback = LUA_REFNIL;
|
|
|
|
// The hook no longer has to stay alive
|
|
hook->type = XLUA_HOOK_DEFUNCT;
|
|
lua_cache_invalidate (L, hook);
|
|
return 0;
|
|
}
|
|
|
|
// The hook dies either when the plugin requests it or at plugin unload
|
|
static luaL_Reg lua_hook_table[] =
|
|
{
|
|
{ "unhook", lua_hook_unhook },
|
|
{ "__gc", lua_hook_unhook },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static char *
|
|
lua_input_hook_filter (struct input_hook *self, struct buffer *buffer,
|
|
char *input)
|
|
{
|
|
struct lua_hook *hook =
|
|
CONTAINER_OF (self, struct lua_hook, data.input_hook);
|
|
struct lua_plugin *plugin = hook->plugin;
|
|
lua_State *L = plugin->L;
|
|
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
|
|
lua_rawgetp (L, LUA_REGISTRYINDEX, hook); // 1: hook
|
|
lua_weak_push (L, plugin, buffer, &lua_buffer_info); // 2: buffer
|
|
lua_pushstring (L, input); // 3: input
|
|
|
|
struct error *e = NULL;
|
|
if (lua_plugin_call (plugin, 3, 1, &e))
|
|
{
|
|
lua_plugin_handle_string_filter_result (plugin, &input, true, &e);
|
|
lua_pop (L, 1);
|
|
}
|
|
if (e)
|
|
lua_plugin_log_error (plugin, "input hook", e);
|
|
return input;
|
|
}
|
|
|
|
static char *
|
|
lua_irc_hook_filter (struct irc_hook *self, struct server *s, char *message)
|
|
{
|
|
struct lua_hook *hook =
|
|
CONTAINER_OF (self, struct lua_hook, data.irc_hook);
|
|
struct lua_plugin *plugin = hook->plugin;
|
|
lua_State *L = plugin->L;
|
|
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
|
|
lua_rawgetp (L, LUA_REGISTRYINDEX, hook); // 1: hook
|
|
lua_weak_push (L, plugin, s, &lua_server_info); // 2: server
|
|
lua_pushstring (L, message); // 3: message
|
|
|
|
struct error *e = NULL;
|
|
if (lua_plugin_call (plugin, 3, 1, &e))
|
|
{
|
|
lua_plugin_handle_string_filter_result (plugin, &message, false, &e);
|
|
lua_pop (L, 1);
|
|
}
|
|
if (e)
|
|
lua_plugin_log_error (plugin, "IRC hook", e);
|
|
return message;
|
|
}
|
|
|
|
static char *
|
|
lua_prompt_hook_make (struct prompt_hook *self)
|
|
{
|
|
struct lua_hook *hook =
|
|
CONTAINER_OF (self, struct lua_hook, data.prompt_hook);
|
|
struct lua_plugin *plugin = hook->plugin;
|
|
lua_State *L = plugin->L;
|
|
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
|
|
lua_rawgetp (L, LUA_REGISTRYINDEX, hook); // 1: hook
|
|
|
|
struct error *e = NULL;
|
|
char *prompt = xstrdup ("");
|
|
if (lua_plugin_call (plugin, 1, 1, &e))
|
|
{
|
|
lua_plugin_handle_string_filter_result (plugin, &prompt, true, &e);
|
|
lua_pop (L, 1);
|
|
}
|
|
if (e)
|
|
lua_plugin_log_error (plugin, "prompt hook", e);
|
|
return prompt;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
lua_plugin_push_completion (lua_State *L, struct completion *data)
|
|
{
|
|
lua_createtable (L, 0, 3);
|
|
|
|
lua_pushstring (L, data->line);
|
|
lua_setfield (L, -2, "line");
|
|
|
|
lua_createtable (L, data->words_len, 0);
|
|
for (size_t i = 0; i < data->words_len; i++)
|
|
{
|
|
lua_pushlstring (L, data->line + data->words[i].start,
|
|
data->words[i].end - data->words[i].start);
|
|
lua_rawseti (L, -2, i + 1);
|
|
}
|
|
lua_setfield (L, -2, "words");
|
|
|
|
lua_pushinteger (L, data->location);
|
|
lua_setfield (L, -2, "location");
|
|
}
|
|
|
|
static bool
|
|
lua_completion_hook_process_value (lua_State *L, struct strv *output,
|
|
struct error **e)
|
|
{
|
|
if (lua_type (L, -1) != LUA_TSTRING)
|
|
{
|
|
return error_set (e,
|
|
"%s: %s", "invalid type", lua_typename (L, lua_type (L, -1)));
|
|
}
|
|
|
|
size_t len;
|
|
const char *value = lua_tolstring (L, -1, &len);
|
|
if (!utf8_validate (value, len))
|
|
return error_set (e, "must be valid UTF-8");
|
|
|
|
strv_append (output, value);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
lua_completion_hook_process (lua_State *L, struct strv *output,
|
|
struct error **e)
|
|
{
|
|
if (lua_isnil (L, -1))
|
|
return true;
|
|
if (!lua_istable (L, -1))
|
|
return error_set (e, "must return either a table or nil");
|
|
|
|
bool success = true;
|
|
for (lua_Integer i = 1; success && lua_rawgeti (L, -1, i); i++)
|
|
if ((success = lua_completion_hook_process_value (L, output, e)))
|
|
lua_pop (L, 1);
|
|
lua_pop (L, 1);
|
|
return success;
|
|
}
|
|
|
|
static void
|
|
lua_completion_hook_complete (struct completion_hook *self,
|
|
struct completion *data, const char *word, struct strv *output)
|
|
{
|
|
struct lua_hook *hook =
|
|
CONTAINER_OF (self, struct lua_hook, data.c_hook);
|
|
struct lua_plugin *plugin = hook->plugin;
|
|
lua_State *L = plugin->L;
|
|
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, hook->ref_callback);
|
|
lua_rawgetp (L, LUA_REGISTRYINDEX, hook); // 1: hook
|
|
lua_plugin_push_completion (L, data); // 2: data
|
|
|
|
lua_weak_push (L, plugin, plugin->ctx->current_buffer, &lua_buffer_info);
|
|
lua_setfield (L, -2, "buffer");
|
|
|
|
lua_pushstring (L, word); // 3: word
|
|
|
|
struct error *e = NULL;
|
|
if (lua_plugin_call (plugin, 3, 1, &e))
|
|
{
|
|
lua_completion_hook_process (L, output, &e);
|
|
lua_pop (L, 1);
|
|
}
|
|
if (e)
|
|
lua_plugin_log_error (plugin, "autocomplete hook", e);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static struct lua_hook *
|
|
lua_plugin_push_hook (lua_State *L, struct lua_plugin *plugin,
|
|
int callback_index, enum lua_hook_type type, int priority)
|
|
{
|
|
luaL_checktype (L, callback_index, LUA_TFUNCTION);
|
|
|
|
struct lua_hook *hook = lua_newuserdata (L, sizeof *hook);
|
|
luaL_setmetatable (L, XLUA_HOOK_METATABLE);
|
|
memset (hook, 0, sizeof *hook);
|
|
hook->data.hook.priority = priority;
|
|
hook->type = type;
|
|
hook->plugin = plugin;
|
|
|
|
lua_pushvalue (L, callback_index);
|
|
hook->ref_callback = luaL_ref (L, LUA_REGISTRYINDEX);
|
|
|
|
// Make sure the hook doesn't get garbage collected and return it
|
|
lua_cache_store (L, hook, -1);
|
|
return hook;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_hook_input (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
struct lua_hook *hook = lua_plugin_push_hook
|
|
(L, plugin, 1, XLUA_HOOK_INPUT, luaL_optinteger (L, 2, 0));
|
|
hook->data.input_hook.filter = lua_input_hook_filter;
|
|
plugin->ctx->input_hooks =
|
|
hook_insert (plugin->ctx->input_hooks, &hook->data.hook);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_hook_irc (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
struct lua_hook *hook = lua_plugin_push_hook
|
|
(L, plugin, 1, XLUA_HOOK_IRC, luaL_optinteger (L, 2, 0));
|
|
hook->data.irc_hook.filter = lua_irc_hook_filter;
|
|
plugin->ctx->irc_hooks =
|
|
hook_insert (plugin->ctx->irc_hooks, &hook->data.hook);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_hook_prompt (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
struct lua_hook *hook = lua_plugin_push_hook
|
|
(L, plugin, 1, XLUA_HOOK_PROMPT, luaL_optinteger (L, 2, 0));
|
|
hook->data.prompt_hook.make = lua_prompt_hook_make;
|
|
plugin->ctx->prompt_hooks =
|
|
hook_insert (plugin->ctx->prompt_hooks, &hook->data.hook);
|
|
refresh_prompt (plugin->ctx);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_hook_completion (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
struct lua_hook *hook = lua_plugin_push_hook
|
|
(L, plugin, 1, XLUA_HOOK_COMPLETION, luaL_optinteger (L, 2, 0));
|
|
hook->data.c_hook.complete = lua_completion_hook_complete;
|
|
plugin->ctx->completion_hooks =
|
|
hook_insert (plugin->ctx->completion_hooks, &hook->data.hook);
|
|
return 1;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
#define XLUA_SCHEMA_METATABLE "schema" ///< Identifier for the Lua metatable
|
|
|
|
struct lua_schema_item
|
|
{
|
|
LIST_HEADER (struct lua_schema_item)
|
|
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
struct config_item *item; ///< The item managed by the schema
|
|
struct config_schema schema; ///< Schema itself
|
|
|
|
int ref_validate; ///< Reference to "validate" callback
|
|
int ref_on_change; ///< Reference to "on_change" callback
|
|
};
|
|
|
|
static void
|
|
lua_schema_item_discard (struct lua_schema_item *self)
|
|
{
|
|
if (self->item)
|
|
{
|
|
self->item->schema = NULL;
|
|
self->item->user_data = NULL;
|
|
self->item = NULL;
|
|
LIST_UNLINK (self->plugin->schemas, self);
|
|
}
|
|
|
|
// Now that we've disconnected from the item, allow garbage collection
|
|
lua_cache_invalidate (self->plugin->L, self);
|
|
}
|
|
|
|
static int
|
|
lua_schema_item_gc (lua_State *L)
|
|
{
|
|
struct lua_schema_item *self =
|
|
luaL_checkudata (L, 1, XLUA_SCHEMA_METATABLE);
|
|
lua_schema_item_discard (self);
|
|
|
|
free ((char *) self->schema.name);
|
|
free ((char *) self->schema.comment);
|
|
free ((char *) self->schema.default_);
|
|
|
|
luaL_unref (L, LUA_REGISTRYINDEX, self->ref_validate);
|
|
luaL_unref (L, LUA_REGISTRYINDEX, self->ref_on_change);
|
|
return 0;
|
|
}
|
|
|
|
static luaL_Reg lua_schema_table[] =
|
|
{
|
|
{ "__gc", lua_schema_item_gc },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
/// Unfortunately this has the same problem as JSON libraries in that Lua
|
|
/// cannot store null values in containers (it has no distinct "undefined" type)
|
|
static void
|
|
lua_plugin_push_config_item (lua_State *L, const struct config_item *item)
|
|
{
|
|
switch (item->type)
|
|
{
|
|
case CONFIG_ITEM_NULL:
|
|
lua_pushnil (L);
|
|
break;
|
|
case CONFIG_ITEM_OBJECT:
|
|
{
|
|
lua_createtable (L, 0, item->value.object.len);
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&item->value.object);
|
|
struct config_item *child;
|
|
while ((child = str_map_iter_next (&iter)))
|
|
{
|
|
lua_plugin_push_config_item (L, child);
|
|
lua_setfield (L, -2, iter.link->key);
|
|
}
|
|
break;
|
|
}
|
|
case CONFIG_ITEM_BOOLEAN:
|
|
lua_pushboolean (L, item->value.boolean);
|
|
break;
|
|
case CONFIG_ITEM_INTEGER:
|
|
lua_pushinteger (L, item->value.integer);
|
|
break;
|
|
case CONFIG_ITEM_STRING:
|
|
case CONFIG_ITEM_STRING_ARRAY:
|
|
lua_pushlstring (L, item->value.string.str, item->value.string.len);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
lua_schema_item_validate (const struct config_item *item, struct error **e)
|
|
{
|
|
struct lua_schema_item *self = item->user_data;
|
|
if (self->ref_validate == LUA_REFNIL)
|
|
return true;
|
|
|
|
lua_State *L = self->plugin->L;
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, self->ref_validate);
|
|
lua_plugin_push_config_item (L, item);
|
|
|
|
// The callback can make use of error("...", 0) to produce nice messages
|
|
return lua_plugin_call (self->plugin, 1, 0, e);
|
|
}
|
|
|
|
static void
|
|
lua_schema_item_on_change (struct config_item *item)
|
|
{
|
|
struct lua_schema_item *self = item->user_data;
|
|
if (self->ref_on_change == LUA_REFNIL)
|
|
return;
|
|
|
|
lua_State *L = self->plugin->L;
|
|
lua_rawgeti (L, LUA_REGISTRYINDEX, self->ref_on_change);
|
|
lua_plugin_push_config_item (L, item);
|
|
|
|
struct error *e = NULL;
|
|
if (!lua_plugin_call (self->plugin, 1, 0, &e))
|
|
lua_plugin_log_error (self->plugin, "schema on_change", e);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_plugin_decode_config_item_type (const char *type)
|
|
{
|
|
if (!strcmp (type, "null")) return CONFIG_ITEM_NULL;
|
|
if (!strcmp (type, "object")) return CONFIG_ITEM_OBJECT;
|
|
if (!strcmp (type, "boolean")) return CONFIG_ITEM_BOOLEAN;
|
|
if (!strcmp (type, "integer")) return CONFIG_ITEM_INTEGER;
|
|
if (!strcmp (type, "string")) return CONFIG_ITEM_STRING;
|
|
if (!strcmp (type, "string_array")) return CONFIG_ITEM_STRING_ARRAY;
|
|
return -1;
|
|
}
|
|
|
|
static bool
|
|
lua_plugin_check_field (lua_State *L, int idx, const char *name,
|
|
int expected, bool optional)
|
|
{
|
|
int found = lua_getfield (L, idx, name);
|
|
if (found == expected)
|
|
return true;
|
|
if (optional && found == LUA_TNIL)
|
|
return false;
|
|
|
|
const char *message = optional
|
|
? "invalid field \"%s\" (found: %s, expected: %s or nil)"
|
|
: "invalid or missing field \"%s\" (found: %s, expected: %s)";
|
|
return luaL_error (L, message, name,
|
|
lua_typename (L, found), lua_typename (L, expected));
|
|
}
|
|
|
|
static int
|
|
lua_plugin_add_config_schema (lua_State *L, struct lua_plugin *plugin,
|
|
struct config_item *subtree, const char *name)
|
|
{
|
|
struct config_item *item = str_map_find (&subtree->value.object, name);
|
|
// This should only ever happen because of a conflict with another plugin;
|
|
// this is the price we pay for simplicity
|
|
if (item && item->schema)
|
|
{
|
|
struct lua_schema_item *owner = item->user_data;
|
|
return luaL_error (L, "conflicting schema item: %s (owned by: %s)",
|
|
name, owner->plugin->super.name);
|
|
}
|
|
|
|
// Create and initialize a full userdata wrapper for the schema item
|
|
struct lua_schema_item *self = lua_newuserdata (L, sizeof *self);
|
|
luaL_setmetatable (L, XLUA_SCHEMA_METATABLE);
|
|
memset (self, 0, sizeof *self);
|
|
|
|
self->plugin = plugin;
|
|
self->ref_on_change = LUA_REFNIL;
|
|
self->ref_validate = LUA_REFNIL;
|
|
|
|
struct config_schema *schema = &self->schema;
|
|
schema->name = xstrdup (name);
|
|
schema->comment = NULL;
|
|
schema->default_ = NULL;
|
|
schema->type = CONFIG_ITEM_NULL;
|
|
schema->on_change = lua_schema_item_on_change;
|
|
schema->validate = lua_schema_item_validate;
|
|
|
|
// Try to update the defaults with values provided by the plugin
|
|
int values = lua_absindex (L, -2);
|
|
(void) lua_plugin_check_field (L, values, "type", LUA_TSTRING, false);
|
|
int item_type = schema->type =
|
|
lua_plugin_decode_config_item_type (lua_tostring (L, -1));
|
|
if (item_type == -1)
|
|
return luaL_error (L, "invalid type of schema item");
|
|
|
|
if (lua_plugin_check_field (L, values, "comment", LUA_TSTRING, true))
|
|
schema->comment = xstrdup (lua_tostring (L, -1));
|
|
if (lua_plugin_check_field (L, values, "default", LUA_TSTRING, true))
|
|
schema->default_ = xstrdup (lua_tostring (L, -1));
|
|
|
|
lua_pop (L, 3);
|
|
|
|
(void) lua_plugin_check_field (L, values, "on_change", LUA_TFUNCTION, true);
|
|
self->ref_on_change = luaL_ref (L, LUA_REGISTRYINDEX);
|
|
(void) lua_plugin_check_field (L, values, "validate", LUA_TFUNCTION, true);
|
|
self->ref_validate = luaL_ref (L, LUA_REGISTRYINDEX);
|
|
|
|
// Try to install the created schema item into our configuration
|
|
struct error *warning = NULL, *e = NULL;
|
|
item = config_schema_initialize_item
|
|
(&self->schema, subtree, self, &warning, &e);
|
|
|
|
if (warning)
|
|
{
|
|
log_global_error (plugin->ctx, "Lua: plugin \"#s\": #s",
|
|
plugin->super.name, warning->message);
|
|
error_free (warning);
|
|
}
|
|
if (e)
|
|
{
|
|
const char *error = lua_pushstring (L, e->message);
|
|
error_free (e);
|
|
return luaL_error (L, "%s", error);
|
|
}
|
|
|
|
self->item = item;
|
|
LIST_PREPEND (plugin->schemas, self);
|
|
|
|
// On the stack there should be the schema table and the resulting object;
|
|
// we need to make sure Lua doesn't GC the second and get rid of them both
|
|
lua_cache_store (L, self, -1);
|
|
lua_pop (L, 2);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_setup_config (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
luaL_checktype (L, 1, LUA_TTABLE);
|
|
|
|
struct app_context *ctx = plugin->ctx;
|
|
char *config_name = plugin_config_name (&plugin->super);
|
|
if (!config_name)
|
|
return luaL_error (L, "unsuitable plugin name");
|
|
|
|
struct str_map *plugins = get_plugins_config (ctx);
|
|
struct config_item *subtree = str_map_find (plugins, config_name);
|
|
if (!subtree || subtree->type != CONFIG_ITEM_OBJECT)
|
|
str_map_set (plugins, config_name, (subtree = config_item_object ()));
|
|
free (config_name);
|
|
|
|
LIST_FOR_EACH (struct lua_schema_item, iter, plugin->schemas)
|
|
lua_schema_item_discard (iter);
|
|
|
|
// Load all schema items and apply them to the plugin's subtree
|
|
lua_pushnil (L);
|
|
while (lua_next (L, 1))
|
|
{
|
|
if (lua_type (L, -2) != LUA_TSTRING
|
|
|| lua_type (L, -1) != LUA_TTABLE)
|
|
return luaL_error (L, "%s: %s -> %s", "invalid types",
|
|
lua_typename (L, lua_type (L, -2)),
|
|
lua_typename (L, lua_type (L, -1)));
|
|
lua_plugin_add_config_schema (L, plugin, subtree, lua_tostring (L, -2));
|
|
}
|
|
|
|
// Let the plugin read out configuration via on_change callbacks
|
|
config_schema_call_changed (subtree);
|
|
return 0;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
/// Identifier for the Lua metatable
|
|
#define XLUA_CONNECTION_METATABLE "connection"
|
|
|
|
struct lua_connection
|
|
{
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
struct poller_fd socket_event; ///< Socket is ready
|
|
int socket_fd; ///< Underlying connected socket
|
|
|
|
bool got_eof; ///< Half-closed by remote host
|
|
bool closing; ///< We're closing the connection
|
|
|
|
struct str read_buffer; ///< Read buffer
|
|
struct str write_buffer; ///< Write buffer
|
|
};
|
|
|
|
static void
|
|
lua_connection_update_poller (struct lua_connection *self)
|
|
{
|
|
poller_fd_set (&self->socket_event,
|
|
self->write_buffer.len ? (POLLIN | POLLOUT) : POLLIN);
|
|
}
|
|
|
|
static int
|
|
lua_connection_send (lua_State *L)
|
|
{
|
|
struct lua_connection *self =
|
|
luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE);
|
|
if (self->socket_fd == -1)
|
|
return luaL_error (L, "connection has been closed");
|
|
|
|
size_t len;
|
|
const char *s = luaL_checklstring (L, 2, &len);
|
|
str_append_data (&self->write_buffer, s, len);
|
|
lua_connection_update_poller (self);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lua_connection_discard (struct lua_connection *self)
|
|
{
|
|
if (self->socket_fd != -1)
|
|
{
|
|
poller_fd_reset (&self->socket_event);
|
|
xclose (self->socket_fd);
|
|
self->socket_fd = -1;
|
|
|
|
str_free (&self->read_buffer);
|
|
str_free (&self->write_buffer);
|
|
}
|
|
|
|
// Connection is dead, we don't need to hold onto any resources anymore
|
|
lua_cache_invalidate (self->plugin->L, self);
|
|
}
|
|
|
|
static int
|
|
lua_connection_close (lua_State *L)
|
|
{
|
|
struct lua_connection *self =
|
|
luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE);
|
|
if (self->socket_fd != -1)
|
|
{
|
|
self->closing = true;
|
|
// NOTE: this seems to do nothing on Linux
|
|
(void) shutdown (self->socket_fd, SHUT_RD);
|
|
|
|
// Right now we want to wait until all data is flushed to the socket
|
|
// and can't call close() here immediately -- a rewrite to use async
|
|
// would enable the user to await on either :send() or :flush();
|
|
// a successful send() doesn't necessarily mean anything though
|
|
if (!self->write_buffer.len)
|
|
lua_connection_discard (self);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lua_connection_gc (lua_State *L)
|
|
{
|
|
lua_connection_discard (luaL_checkudata (L, 1, XLUA_CONNECTION_METATABLE));
|
|
return 0;
|
|
}
|
|
|
|
static luaL_Reg lua_connection_table[] =
|
|
{
|
|
{ "send", lua_connection_send },
|
|
{ "close", lua_connection_close },
|
|
{ "__gc", lua_connection_gc },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_connection_check_fn (lua_State *L)
|
|
{
|
|
lua_plugin_check_field (L, 1, luaL_checkstring (L, 2), LUA_TFUNCTION, true);
|
|
return 1;
|
|
}
|
|
|
|
// We need to run it in a protected environment because of lua_getfield()
|
|
static bool
|
|
lua_connection_cb_lookup (struct lua_connection *self, const char *name,
|
|
struct error **e)
|
|
{
|
|
lua_State *L = self->plugin->L;
|
|
lua_pushcfunction (L, lua_connection_check_fn);
|
|
hard_assert (lua_cache_get (L, self));
|
|
lua_pushstring (L, name);
|
|
return lua_plugin_call (self->plugin, 2, 1, e);
|
|
}
|
|
|
|
// Ideally lua_connection_cb_lookup() would return a ternary value
|
|
static bool
|
|
lua_connection_eat_nil (struct lua_connection *self)
|
|
{
|
|
if (lua_toboolean (self->plugin->L, -1))
|
|
return false;
|
|
lua_pop (self->plugin->L, 1);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
lua_connection_invoke_on_data (struct lua_connection *self, struct error **e)
|
|
{
|
|
if (!lua_connection_cb_lookup (self, "on_data", e))
|
|
return false;
|
|
if (lua_connection_eat_nil (self))
|
|
return true;
|
|
|
|
lua_pushlstring (self->plugin->L,
|
|
self->read_buffer.str, self->read_buffer.len);
|
|
return lua_plugin_call (self->plugin, 1, 0, e);
|
|
}
|
|
|
|
static bool
|
|
lua_connection_invoke_on_eof (struct lua_connection *self, struct error **e)
|
|
{
|
|
if (!lua_connection_cb_lookup (self, "on_eof", e))
|
|
return false;
|
|
if (lua_connection_eat_nil (self))
|
|
return true;
|
|
return lua_plugin_call (self->plugin, 0, 0, e);
|
|
}
|
|
|
|
static bool
|
|
lua_connection_invoke_on_error (struct lua_connection *self,
|
|
const char *error, struct error **e)
|
|
{
|
|
// XXX: not sure if ignoring errors after :close() is always desired;
|
|
// code might want to make sure that data are transferred successfully
|
|
if (!self->closing
|
|
&& lua_connection_cb_lookup (self, "on_error", e)
|
|
&& !lua_connection_eat_nil (self))
|
|
{
|
|
lua_pushstring (self->plugin->L, error);
|
|
lua_plugin_call (self->plugin, 1, 0, e);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
lua_connection_try_read (struct lua_connection *self, struct error **e)
|
|
{
|
|
// Avoid the read call when it's obviously not going to return any data
|
|
// and would only cause unwanted invocation of callbacks
|
|
if (self->closing || self->got_eof)
|
|
return true;
|
|
|
|
enum socket_io_result read_result =
|
|
socket_io_try_read (self->socket_fd, &self->read_buffer);
|
|
const char *error = strerror (errno);
|
|
|
|
// Dispatch any data that we got before an EOF or any error
|
|
if (self->read_buffer.len)
|
|
{
|
|
if (!lua_connection_invoke_on_data (self, e))
|
|
return false;
|
|
str_reset (&self->read_buffer);
|
|
}
|
|
|
|
if (read_result == SOCKET_IO_EOF)
|
|
{
|
|
if (!lua_connection_invoke_on_eof (self, e))
|
|
return false;
|
|
self->got_eof = true;
|
|
}
|
|
if (read_result == SOCKET_IO_ERROR)
|
|
return lua_connection_invoke_on_error (self, error, e);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
lua_connection_try_write (struct lua_connection *self, struct error **e)
|
|
{
|
|
enum socket_io_result write_result =
|
|
socket_io_try_write (self->socket_fd, &self->write_buffer);
|
|
const char *error = strerror (errno);
|
|
|
|
if (write_result == SOCKET_IO_ERROR)
|
|
return lua_connection_invoke_on_error (self, error, e);
|
|
return !self->closing || self->write_buffer.len;
|
|
}
|
|
|
|
static void
|
|
lua_connection_on_ready (const struct pollfd *pfd, struct lua_connection *self)
|
|
{
|
|
(void) pfd;
|
|
|
|
// Hold a reference so that it doesn't get collected on close()
|
|
hard_assert (lua_cache_get (self->plugin->L, self));
|
|
|
|
struct error *e = NULL;
|
|
bool keep = lua_connection_try_read (self, &e)
|
|
&& lua_connection_try_write (self, &e);
|
|
if (e)
|
|
lua_plugin_log_error (self->plugin, "network I/O", e);
|
|
if (keep)
|
|
lua_connection_update_poller (self);
|
|
else
|
|
lua_connection_discard (self);
|
|
|
|
lua_pop (self->plugin->L, 1);
|
|
}
|
|
|
|
static struct lua_connection *
|
|
lua_plugin_push_connection (struct lua_plugin *plugin, int socket_fd)
|
|
{
|
|
lua_State *L = plugin->L;
|
|
|
|
struct lua_connection *self = lua_newuserdata (L, sizeof *self);
|
|
luaL_setmetatable (L, XLUA_CONNECTION_METATABLE);
|
|
memset (self, 0, sizeof *self);
|
|
self->plugin = plugin;
|
|
|
|
set_blocking (socket_fd, false);
|
|
self->socket_event = poller_fd_make
|
|
(&plugin->ctx->poller, (self->socket_fd = socket_fd));
|
|
self->socket_event.dispatcher = (poller_fd_fn) lua_connection_on_ready;
|
|
self->socket_event.user_data = self;
|
|
poller_fd_set (&self->socket_event, POLLIN);
|
|
|
|
self->read_buffer = str_make ();
|
|
self->write_buffer = str_make ();
|
|
|
|
// Make sure the connection doesn't get garbage collected and return it
|
|
lua_cache_store (L, self, -1);
|
|
return self;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// The script can create as many wait channels as wanted. They only actually
|
|
// do anything once they get yielded to the main lua_resume() call.
|
|
|
|
/// Identifier for the Lua metatable
|
|
#define XLUA_WCHANNEL_METATABLE "wchannel"
|
|
|
|
struct lua_wait_channel
|
|
{
|
|
LIST_HEADER (struct lua_wait_channel)
|
|
|
|
struct lua_task *task; ///< The task we're active in
|
|
|
|
/// Check if the event is ready and eventually push values to the thread;
|
|
/// the channel then may release any resources
|
|
bool (*check) (struct lua_wait_channel *self);
|
|
|
|
/// Release all resources held by the subclass
|
|
void (*cleanup) (struct lua_wait_channel *self);
|
|
};
|
|
|
|
static int
|
|
lua_wchannel_gc (lua_State *L)
|
|
{
|
|
struct lua_wait_channel *self =
|
|
luaL_checkudata (L, 1, XLUA_WCHANNEL_METATABLE);
|
|
if (self->cleanup)
|
|
self->cleanup (self);
|
|
return 0;
|
|
}
|
|
|
|
static luaL_Reg lua_wchannel_table[] =
|
|
{
|
|
{ "__gc", lua_wchannel_gc },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// A task encapsulates a thread so that wait channels yielded from its main
|
|
// function get waited upon by the event loop
|
|
|
|
#define XLUA_TASK_METATABLE "task" ///< Identifier for the Lua metatable
|
|
|
|
struct lua_task
|
|
{
|
|
LIST_HEADER (struct lua_task)
|
|
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
lua_State *thread; ///< Lua thread
|
|
struct lua_wait_channel *active; ///< Channels we're waiting on
|
|
struct poller_idle idle; ///< Idle job
|
|
};
|
|
|
|
static void
|
|
lua_task_unregister_channels (struct lua_task *self)
|
|
{
|
|
LIST_FOR_EACH (struct lua_wait_channel, iter, self->active)
|
|
{
|
|
iter->task = NULL;
|
|
LIST_UNLINK (self->active, iter);
|
|
lua_cache_invalidate (self->plugin->L, iter);
|
|
}
|
|
}
|
|
|
|
static void
|
|
lua_task_cancel_internal (struct lua_task *self)
|
|
{
|
|
if (self->thread)
|
|
{
|
|
lua_cache_invalidate (self->plugin->L, self->thread);
|
|
self->thread = NULL;
|
|
}
|
|
lua_task_unregister_channels (self);
|
|
poller_idle_reset (&self->idle);
|
|
|
|
// The task no longer has to stay alive
|
|
lua_cache_invalidate (self->plugin->L, self);
|
|
}
|
|
|
|
static int
|
|
lua_task_cancel (lua_State *L)
|
|
{
|
|
struct lua_task *self = luaL_checkudata (L, 1, XLUA_TASK_METATABLE);
|
|
// We could also yield and make lua_task_resume() check "self->thread",
|
|
// however the main issue here is that the script should just return
|
|
luaL_argcheck (L, L != self->thread, 1,
|
|
"cannot cancel task from within itself");
|
|
lua_task_cancel_internal (self);
|
|
return 0;
|
|
}
|
|
|
|
#define lua_task_wakeup(self) poller_idle_set (&(self)->idle)
|
|
|
|
static bool
|
|
lua_task_schedule (struct lua_task *self, int n, struct error **e)
|
|
{
|
|
lua_State *L = self->thread;
|
|
for (int i = -1; -i <= n; i--)
|
|
{
|
|
struct lua_wait_channel *channel =
|
|
luaL_testudata (L, i, XLUA_WCHANNEL_METATABLE);
|
|
if (!channel)
|
|
return error_set (e, "bad argument #%d to yield: %s", -i + n + 1,
|
|
"tasks can only yield wait channels");
|
|
if (channel->task)
|
|
return error_set (e, "bad argument #%d to yield: %s", -i + n + 1,
|
|
"wait channels can only be active in one task at most");
|
|
}
|
|
for (int i = -1; -i <= n; i--)
|
|
{
|
|
// Quietly ignore duplicate channels
|
|
struct lua_wait_channel *channel = lua_touserdata (L, i);
|
|
if (channel->task)
|
|
continue;
|
|
|
|
// By going in reverse the list ends up in the right order
|
|
channel->task = self;
|
|
LIST_PREPEND (self->active, channel);
|
|
lua_cache_store (self->plugin->L, channel, i);
|
|
}
|
|
lua_pop (L, n);
|
|
|
|
// There doesn't have to be a single channel
|
|
// We can also be waiting on a channel that is already ready
|
|
lua_task_wakeup (self);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
lua_task_resume (struct lua_task *self, int index)
|
|
{
|
|
lua_State *L = self->thread;
|
|
bool waiting_on_multiple = self->active && self->active->next;
|
|
|
|
// Since we've ended the wait, we don't need to hold on to them anymore
|
|
lua_task_unregister_channels (self);
|
|
|
|
// On the first run we also have the main function on the stack,
|
|
// before any initial arguments
|
|
int n = lua_gettop (L) - (lua_status (L) == LUA_OK);
|
|
|
|
// Pack the values in a table and prepend the index of the channel, so that
|
|
// the caller doesn't need to care about the number of return values
|
|
if (waiting_on_multiple)
|
|
{
|
|
lua_plugin_pack (L, n);
|
|
lua_pushinteger (L, index);
|
|
lua_insert (L, -2);
|
|
n = 2;
|
|
}
|
|
|
|
#if LUA_VERSION_NUM >= 504
|
|
int nresults = 0;
|
|
int res = lua_resume (L, NULL, n, &nresults);
|
|
#else
|
|
int res = lua_resume (L, NULL, n);
|
|
int nresults = lua_gettop (L);
|
|
#endif
|
|
|
|
struct error *error = NULL;
|
|
if (res == LUA_YIELD)
|
|
{
|
|
// AFAIK we don't get any good error context information from here
|
|
if (lua_task_schedule (self, nresults, &error))
|
|
return;
|
|
}
|
|
// For simplicity ignore any results from successful returns
|
|
else if (res != LUA_OK)
|
|
{
|
|
luaL_traceback (L, L, lua_tostring (L, -1), 0 /* or 1? */);
|
|
lua_plugin_process_error (self->plugin, lua_tostring (L, -1), &error);
|
|
lua_pop (L, 2);
|
|
}
|
|
if (error)
|
|
lua_plugin_log_error (self->plugin, "task", error);
|
|
lua_task_cancel_internal (self);
|
|
}
|
|
|
|
static void
|
|
lua_task_check (struct lua_task *self)
|
|
{
|
|
poller_idle_reset (&self->idle);
|
|
|
|
lua_Integer i = 0;
|
|
LIST_FOR_EACH (struct lua_wait_channel, iter, self->active)
|
|
{
|
|
i++;
|
|
if (iter->check (iter))
|
|
{
|
|
lua_task_resume (self, i);
|
|
return;
|
|
}
|
|
}
|
|
if (!self->active)
|
|
lua_task_resume (self, i);
|
|
}
|
|
|
|
// The task dies either when it finishes, it is cancelled, or at plugin unload
|
|
static luaL_Reg lua_task_table[] =
|
|
{
|
|
{ "cancel", lua_task_cancel },
|
|
{ "__gc", lua_task_cancel },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct lua_wait_timer
|
|
{
|
|
struct lua_wait_channel super; ///< The structure we're deriving
|
|
struct poller_timer timer; ///< Timer event
|
|
bool expired; ///< Whether the timer has expired
|
|
};
|
|
|
|
static bool
|
|
lua_wait_timer_check (struct lua_wait_channel *wchannel)
|
|
{
|
|
struct lua_wait_timer *self =
|
|
CONTAINER_OF (wchannel, struct lua_wait_timer, super);
|
|
return self->super.task && self->expired;
|
|
}
|
|
|
|
static void
|
|
lua_wait_timer_cleanup (struct lua_wait_channel *wchannel)
|
|
{
|
|
struct lua_wait_timer *self =
|
|
CONTAINER_OF (wchannel, struct lua_wait_timer, super);
|
|
poller_timer_reset (&self->timer);
|
|
}
|
|
|
|
static void
|
|
lua_wait_timer_dispatch (struct lua_wait_timer *self)
|
|
{
|
|
self->expired = true;
|
|
if (self->super.task)
|
|
lua_task_wakeup (self->super.task);
|
|
}
|
|
|
|
static int
|
|
lua_plugin_push_wait_timer (struct lua_plugin *plugin, lua_State *L,
|
|
lua_Integer timeout)
|
|
{
|
|
struct lua_wait_timer *self = lua_newuserdata (L, sizeof *self);
|
|
luaL_setmetatable (L, XLUA_WCHANNEL_METATABLE);
|
|
memset (self, 0, sizeof *self);
|
|
|
|
self->super.check = lua_wait_timer_check;
|
|
self->super.cleanup = lua_wait_timer_cleanup;
|
|
|
|
self->timer = poller_timer_make (&plugin->ctx->poller);
|
|
self->timer.dispatcher = (poller_timer_fn) lua_wait_timer_dispatch;
|
|
self->timer.user_data = self;
|
|
|
|
if (timeout)
|
|
poller_timer_set (&self->timer, timeout);
|
|
else
|
|
self->expired = true;
|
|
return 1;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
struct lua_wait_dial
|
|
{
|
|
struct lua_wait_channel super; ///< The structure we're deriving
|
|
|
|
struct lua_plugin *plugin; ///< The plugin we belong to
|
|
struct connector connector; ///< Connector object
|
|
bool active; ///< Whether the connector is alive
|
|
|
|
struct lua_connection *connection; ///< Established connection
|
|
char *hostname; ///< Target hostname
|
|
char *last_error; ///< Connecting error, if any
|
|
};
|
|
|
|
static bool
|
|
lua_wait_dial_check (struct lua_wait_channel *wchannel)
|
|
{
|
|
struct lua_wait_dial *self =
|
|
CONTAINER_OF (wchannel, struct lua_wait_dial, super);
|
|
|
|
lua_State *L = self->super.task->thread;
|
|
if (self->connection)
|
|
{
|
|
// FIXME: this way the connection may leak -- we pass the value to the
|
|
// task manager on the stack and forget about it but still leave the
|
|
// connection in the cache. That is because right now, when Lua code
|
|
// sets up callbacks in the connection object and returns, it might
|
|
// get otherwise GC'd since nothing else keeps referencing it.
|
|
// By rewriting lua_connection using async, tasks and wait channels
|
|
// would hold a reference, allowing us to remove it from the cache.
|
|
lua_cache_get (L, self->connection);
|
|
lua_pushstring (L, self->hostname);
|
|
self->connection = NULL;
|
|
}
|
|
else if (self->last_error)
|
|
{
|
|
lua_pushnil (L);
|
|
lua_pushnil (L);
|
|
lua_pushstring (L, self->last_error);
|
|
}
|
|
else
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
lua_wait_dial_cancel (struct lua_wait_dial *self)
|
|
{
|
|
if (self->active)
|
|
{
|
|
connector_free (&self->connector);
|
|
self->active = false;
|
|
}
|
|
}
|
|
|
|
static void
|
|
lua_wait_dial_cleanup (struct lua_wait_channel *wchannel)
|
|
{
|
|
struct lua_wait_dial *self =
|
|
CONTAINER_OF (wchannel, struct lua_wait_dial, super);
|
|
|
|
lua_wait_dial_cancel (self);
|
|
if (self->connection)
|
|
lua_connection_discard (self->connection);
|
|
|
|
free (self->hostname);
|
|
free (self->last_error);
|
|
}
|
|
|
|
static void
|
|
lua_wait_dial_on_connected (void *user_data, int socket, const char *hostname)
|
|
{
|
|
struct lua_wait_dial *self = user_data;
|
|
if (self->super.task)
|
|
lua_task_wakeup (self->super.task);
|
|
|
|
self->connection = lua_plugin_push_connection (self->plugin, socket);
|
|
// TODO: use the hostname for SNI once TLS is implemented
|
|
self->hostname = xstrdup (hostname);
|
|
lua_wait_dial_cancel (self);
|
|
}
|
|
|
|
static void
|
|
lua_wait_dial_on_failure (void *user_data)
|
|
{
|
|
struct lua_wait_dial *self = user_data;
|
|
if (self->super.task)
|
|
lua_task_wakeup (self->super.task);
|
|
lua_wait_dial_cancel (self);
|
|
}
|
|
|
|
static void
|
|
lua_wait_dial_on_error (void *user_data, const char *error)
|
|
{
|
|
struct lua_wait_dial *self = user_data;
|
|
cstr_set (&self->last_error, xstrdup (error));
|
|
}
|
|
|
|
static int
|
|
lua_plugin_push_wait_dial (struct lua_plugin *plugin, lua_State *L,
|
|
const char *host, const char *service)
|
|
{
|
|
struct lua_wait_dial *self = lua_newuserdata (L, sizeof *self);
|
|
luaL_setmetatable (L, XLUA_WCHANNEL_METATABLE);
|
|
memset (self, 0, sizeof *self);
|
|
|
|
self->super.check = lua_wait_dial_check;
|
|
self->super.cleanup = lua_wait_dial_cleanup;
|
|
|
|
struct connector *connector = &self->connector;
|
|
connector_init (connector, &plugin->ctx->poller);
|
|
connector_add_target (connector, host, service);
|
|
|
|
connector->on_connected = lua_wait_dial_on_connected;
|
|
connector->on_connecting = NULL;
|
|
connector->on_error = lua_wait_dial_on_error;
|
|
connector->on_failure = lua_wait_dial_on_failure;
|
|
connector->user_data = self;
|
|
|
|
self->plugin = plugin;
|
|
self->active = true;
|
|
return 1;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_async_go (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
luaL_checktype (L, 1, LUA_TFUNCTION);
|
|
|
|
lua_State *thread = lua_newthread (L);
|
|
lua_cache_store (L, thread, -1);
|
|
lua_pop (L, 1);
|
|
|
|
// Move the main function w/ arguments to the thread
|
|
lua_xmove (L, thread, lua_gettop (L));
|
|
|
|
struct lua_task *task = lua_newuserdata (L, sizeof *task);
|
|
luaL_setmetatable (L, XLUA_TASK_METATABLE);
|
|
memset (task, 0, sizeof *task);
|
|
task->plugin = plugin;
|
|
task->thread = thread;
|
|
|
|
task->idle = poller_idle_make (&plugin->ctx->poller);
|
|
task->idle.dispatcher = (poller_idle_fn) lua_task_check;
|
|
task->idle.user_data = task;
|
|
poller_idle_set (&task->idle);
|
|
|
|
// Make sure the task doesn't get garbage collected and return it
|
|
lua_cache_store (L, task, -1);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_async_timer_ms (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
lua_Integer timeout = luaL_checkinteger (L, 1);
|
|
if (timeout < 0)
|
|
luaL_argerror (L, 1, "timeout mustn't be negative");
|
|
return lua_plugin_push_wait_timer (plugin, L, timeout);
|
|
}
|
|
|
|
static int
|
|
lua_async_dial (lua_State *L)
|
|
{
|
|
struct lua_plugin *plugin = lua_touserdata (L, lua_upvalueindex (1));
|
|
return lua_plugin_push_wait_dial (plugin, L,
|
|
luaL_checkstring (L, 1), luaL_checkstring (L, 2));
|
|
}
|
|
|
|
static luaL_Reg lua_async_library[] =
|
|
{
|
|
{ "go", lua_async_go },
|
|
{ "timer_ms", lua_async_timer_ms },
|
|
{ "dial", lua_async_dial },
|
|
{ NULL, NULL },
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static int
|
|
lua_plugin_get_screen_size (lua_State *L)
|
|
{
|
|
lua_pushinteger (L, g_terminal.lines);
|
|
lua_pushinteger (L, g_terminal.columns);
|
|
return 2;
|
|
}
|
|
|
|
static int
|
|
lua_ctx_gc (lua_State *L)
|
|
{
|
|
return lua_weak_gc (L, &lua_ctx_info);
|
|
}
|
|
|
|
static luaL_Reg lua_plugin_library[] =
|
|
{
|
|
// These are global functions:
|
|
|
|
{ "parse", lua_plugin_parse },
|
|
{ "hook_input", lua_plugin_hook_input },
|
|
{ "hook_irc", lua_plugin_hook_irc },
|
|
{ "hook_prompt", lua_plugin_hook_prompt },
|
|
{ "hook_completion", lua_plugin_hook_completion },
|
|
{ "setup_config", lua_plugin_setup_config },
|
|
|
|
// And these are methods:
|
|
|
|
{ "get_screen_size", lua_plugin_get_screen_size },
|
|
{ "__gc", lua_ctx_gc },
|
|
{ NULL, NULL },
|
|
};
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void *
|
|
lua_plugin_alloc (void *ud, void *ptr, size_t o_size, size_t n_size)
|
|
{
|
|
(void) ud;
|
|
(void) o_size;
|
|
|
|
if (n_size)
|
|
return realloc (ptr, n_size);
|
|
|
|
free (ptr);
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_panic (lua_State *L)
|
|
{
|
|
// XXX: we might be able to do something better
|
|
print_fatal ("Lua panicked: %s", lua_tostring (L, -1));
|
|
lua_close (L);
|
|
exit (EXIT_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lua_plugin_push_ref (lua_State *L, struct lua_plugin *self, void *object,
|
|
struct ispect_field *field)
|
|
{
|
|
// We create a mapping on object type registration
|
|
hard_assert (lua_rawgetp (L, LUA_REGISTRYINDEX, field->fields));
|
|
struct lua_weak_info *info = lua_touserdata (L, -1);
|
|
lua_pop (L, 1);
|
|
|
|
if (!field->is_list)
|
|
{
|
|
lua_weak_push (L, self, object, info);
|
|
return;
|
|
}
|
|
|
|
// As a rule in this codebase, these fields are right at the top of structs
|
|
struct list_header { LIST_HEADER (void) };
|
|
|
|
int i = 1;
|
|
lua_newtable (L);
|
|
LIST_FOR_EACH (struct list_header, iter, object)
|
|
{
|
|
lua_weak_push (L, self, iter, info);
|
|
lua_rawseti (L, -2, i++);
|
|
}
|
|
}
|
|
|
|
static void lua_plugin_push_map_field (lua_State *L, struct lua_plugin *self,
|
|
const char *key, void *p, struct ispect_field *field);
|
|
|
|
static void
|
|
lua_plugin_push_struct (lua_State *L, struct lua_plugin *self,
|
|
enum ispect_type type, void *value, struct ispect_field *field)
|
|
{
|
|
if (type == ISPECT_STR)
|
|
{
|
|
const struct str *s = value;
|
|
lua_pushlstring (L, s->str, s->len);
|
|
return;
|
|
}
|
|
if (type == ISPECT_STR_MAP)
|
|
{
|
|
struct str_map_iter iter = str_map_iter_make (value);
|
|
|
|
void *value;
|
|
lua_newtable (L);
|
|
while ((value = str_map_iter_next (&iter)))
|
|
lua_plugin_push_map_field (L, self, iter.link->key, value, field);
|
|
return;
|
|
}
|
|
hard_assert (!"unhandled introspection object type");
|
|
}
|
|
|
|
static void
|
|
lua_plugin_push_map_field (lua_State *L, struct lua_plugin *self,
|
|
const char *key, void *p, struct ispect_field *field)
|
|
{
|
|
// That would mean maps in maps ad infinitum
|
|
hard_assert (field->subtype != ISPECT_STR_MAP);
|
|
|
|
intptr_t n = (intptr_t) p;
|
|
switch (field->subtype)
|
|
{
|
|
// Here the types are generally casted to a void pointer
|
|
case ISPECT_BOOL: lua_pushboolean (L, (bool ) n); break;
|
|
case ISPECT_INT: lua_pushinteger (L, (int ) n); break;
|
|
case ISPECT_UINT: lua_pushinteger (L, (unsigned ) n); break;
|
|
case ISPECT_SIZE: lua_pushinteger (L, (size_t ) n); break;
|
|
case ISPECT_STRING: lua_pushstring (L, p); break;
|
|
case ISPECT_REF: lua_plugin_push_ref (L, self, p, field); break;
|
|
default: lua_plugin_push_struct (L, self, field->subtype, p, field);
|
|
}
|
|
lua_setfield (L, -2, key);
|
|
}
|
|
|
|
static bool
|
|
lua_plugin_property_get_ispect (lua_State *L, const char *property_name)
|
|
{
|
|
struct lua_weak_info *info = lua_touserdata (L, lua_upvalueindex (1));
|
|
if (!info || !info->ispect)
|
|
return false;
|
|
|
|
struct lua_weak *weak = luaL_checkudata (L, 1, info->name);
|
|
// TODO: I think we can do better than this, maybe binary search at least?
|
|
struct ispect_field *field;
|
|
for (field = info->ispect; field->name; field++)
|
|
if (!strcmp (property_name, field->name))
|
|
break;
|
|
if (!field->name)
|
|
return false;
|
|
|
|
struct lua_plugin *self = weak->plugin;
|
|
void *p = (uint8_t *) weak->object + field->offset;
|
|
switch (field->type)
|
|
{
|
|
// Here the types are really what's under the pointer
|
|
case ISPECT_BOOL: lua_pushboolean (L, *(bool *) p); break;
|
|
case ISPECT_INT: lua_pushinteger (L, *(int *) p); break;
|
|
case ISPECT_UINT: lua_pushinteger (L, *(unsigned *) p); break;
|
|
case ISPECT_SIZE: lua_pushinteger (L, *(size_t *) p); break;
|
|
case ISPECT_STRING: lua_pushstring (L, *(char **) p); break;
|
|
case ISPECT_REF: lua_plugin_push_ref (L, self, *(void **) p, field); break;
|
|
default: lua_plugin_push_struct (L, self, field->type, p, field);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_property_get (lua_State *L)
|
|
{
|
|
luaL_checktype (L, 1, LUA_TUSERDATA);
|
|
const char *property_name = luaL_checkstring (L, 2);
|
|
|
|
// Either it's directly present in the metatable
|
|
if (luaL_getmetafield (L, 1, property_name))
|
|
return 1;
|
|
|
|
// Or we try to find and eventually call a getter method
|
|
char *getter_name = xstrdup_printf ("get_%s", property_name);
|
|
bool found = luaL_getmetafield (L, 1, getter_name);
|
|
free (getter_name);
|
|
|
|
if (found)
|
|
{
|
|
lua_pushvalue (L, 1);
|
|
lua_call (L, 1, 1);
|
|
return 1;
|
|
}
|
|
|
|
// Maybe we can find it via introspection
|
|
if (lua_plugin_property_get_ispect (L, property_name))
|
|
return 1;
|
|
|
|
// Or we look for a property set by the user (__gc cannot be overriden)
|
|
if (lua_getuservalue (L, 1) != LUA_TTABLE)
|
|
lua_pushnil (L);
|
|
else
|
|
lua_getfield (L, -1, property_name);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
lua_plugin_property_set (lua_State *L)
|
|
{
|
|
luaL_checktype (L, 1, LUA_TUSERDATA);
|
|
const char *property_name = luaL_checkstring (L, 2);
|
|
luaL_checkany (L, 3);
|
|
|
|
// We use the associated value to store user-defined properties
|
|
int type = lua_getuservalue (L, 1);
|
|
if (type == LUA_TNIL)
|
|
{
|
|
lua_pop (L, 1);
|
|
lua_newtable (L);
|
|
lua_pushvalue (L, -1);
|
|
lua_setuservalue (L, 1);
|
|
}
|
|
else if (type != LUA_TTABLE)
|
|
return luaL_error (L, "associated value is not a table");
|
|
|
|
// Beware that we do not check for conflicts here;
|
|
// if Lua code writes a conflicting field, it is effectively ignored
|
|
lua_pushvalue (L, 3);
|
|
lua_setfield (L, -2, property_name);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
lua_plugin_add_accessors (lua_State *L, struct lua_weak_info *info)
|
|
{
|
|
// Emulate properties for convenience
|
|
lua_pushlightuserdata (L, info);
|
|
lua_pushcclosure (L, lua_plugin_property_get, 1);
|
|
lua_setfield (L, -2, "__index");
|
|
lua_pushcfunction (L, lua_plugin_property_set);
|
|
lua_setfield (L, -2, "__newindex");
|
|
}
|
|
|
|
static void
|
|
lua_plugin_reg_meta (lua_State *L, const char *name, luaL_Reg *fns)
|
|
{
|
|
luaL_newmetatable (L, name);
|
|
luaL_setfuncs (L, fns, 0);
|
|
lua_plugin_add_accessors (L, NULL);
|
|
lua_pop (L, 1);
|
|
}
|
|
|
|
static void
|
|
lua_plugin_reg_weak (lua_State *L, struct lua_weak_info *info, luaL_Reg *fns)
|
|
{
|
|
// Create a mapping from the object type (info->ispect) back to metadata
|
|
// so that we can figure out what to create from ISPECT_REF fields
|
|
lua_pushlightuserdata (L, info);
|
|
lua_rawsetp (L, LUA_REGISTRYINDEX, info->ispect);
|
|
|
|
luaL_newmetatable (L, info->name);
|
|
luaL_setfuncs (L, fns, 0);
|
|
lua_plugin_add_accessors (L, info);
|
|
lua_pop (L, 1);
|
|
}
|
|
|
|
static struct plugin *
|
|
lua_plugin_load (struct app_context *ctx, const char *filename,
|
|
struct error **e)
|
|
{
|
|
lua_State *L = lua_newstate (lua_plugin_alloc, NULL);
|
|
if (!L)
|
|
{
|
|
error_set (e, "Lua initialization failed");
|
|
return NULL;
|
|
}
|
|
|
|
lua_atpanic (L, lua_plugin_panic);
|
|
luaL_openlibs (L);
|
|
|
|
struct lua_plugin *plugin = xcalloc (1, sizeof *plugin);
|
|
plugin->super.name = xstrdup (filename);
|
|
plugin->super.vtable = &lua_plugin_vtable;
|
|
plugin->ctx = ctx;
|
|
plugin->L = L;
|
|
|
|
luaL_checkversion (L);
|
|
|
|
// Register the degesch library as a singleton with "plugin" as an upvalue
|
|
// (mostly historical, but rather convenient)
|
|
luaL_newmetatable (L, lua_ctx_info.name);
|
|
lua_pushlightuserdata (L, plugin);
|
|
luaL_setfuncs (L, lua_plugin_library, 1);
|
|
lua_plugin_add_accessors (L, &lua_ctx_info);
|
|
|
|
// Add the asynchronous library underneath
|
|
lua_newtable (L);
|
|
lua_pushlightuserdata (L, plugin);
|
|
luaL_setfuncs (L, lua_async_library, 1);
|
|
lua_setfield (L, -2, "async");
|
|
lua_pop (L, 1);
|
|
|
|
lua_weak_push (L, plugin, ctx, &lua_ctx_info);
|
|
lua_setglobal (L, lua_ctx_info.name);
|
|
|
|
// Create metatables for our objects
|
|
lua_plugin_reg_meta (L, XLUA_HOOK_METATABLE, lua_hook_table);
|
|
lua_plugin_reg_weak (L, &lua_user_info, lua_user_table);
|
|
lua_plugin_reg_weak (L, &lua_channel_info, lua_channel_table);
|
|
lua_plugin_reg_weak (L, &lua_buffer_info, lua_buffer_table);
|
|
lua_plugin_reg_weak (L, &lua_server_info, lua_server_table);
|
|
lua_plugin_reg_meta (L, XLUA_SCHEMA_METATABLE, lua_schema_table);
|
|
lua_plugin_reg_meta (L, XLUA_CONNECTION_METATABLE, lua_connection_table);
|
|
|
|
lua_plugin_reg_meta (L, XLUA_TASK_METATABLE, lua_task_table);
|
|
lua_plugin_reg_meta (L, XLUA_WCHANNEL_METATABLE, lua_wchannel_table);
|
|
|
|
struct error *error = NULL;
|
|
if (luaL_loadfile (L, filename))
|
|
error_set (e, "%s: %s", "Lua", lua_tostring (L, -1));
|
|
else if (!lua_plugin_call (plugin, 0, 0, &error))
|
|
{
|
|
error_set (e, "%s: %s", "Lua", error->message);
|
|
error_free (error);
|
|
}
|
|
else
|
|
return &plugin->super;
|
|
|
|
plugin_destroy (&plugin->super);
|
|
return NULL;
|
|
}
|
|
|
|
#endif // HAVE_LUA
|
|
|
|
// --- Plugins -----------------------------------------------------------------
|
|
|
|
typedef struct plugin *(*plugin_load_fn)
|
|
(struct app_context *ctx, const char *filename, struct error **e);
|
|
|
|
// We can potentially add support for other scripting languages if so desired,
|
|
// however this possibility is just a byproduct of abstraction
|
|
static plugin_load_fn g_plugin_loaders[] =
|
|
{
|
|
#ifdef HAVE_LUA
|
|
lua_plugin_load,
|
|
#endif // HAVE_LUA
|
|
};
|
|
|
|
static struct plugin *
|
|
plugin_load_from_filename (struct app_context *ctx, const char *filename,
|
|
struct error **e)
|
|
{
|
|
struct plugin *plugin = NULL;
|
|
struct error *error = NULL;
|
|
for (size_t i = 0; i < N_ELEMENTS (g_plugin_loaders); i++)
|
|
if ((plugin = g_plugin_loaders[i](ctx, filename, &error)) || error)
|
|
break;
|
|
|
|
if (error)
|
|
error_propagate (e, error);
|
|
else if (!plugin)
|
|
{
|
|
error_set (e, "no plugin handler for \"%s\"", filename);
|
|
return NULL;
|
|
}
|
|
return plugin;
|
|
}
|
|
|
|
static struct plugin *
|
|
plugin_find (struct app_context *ctx, const char *name)
|
|
{
|
|
LIST_FOR_EACH (struct plugin, iter, ctx->plugins)
|
|
if (!strcmp (name, iter->name))
|
|
return iter;
|
|
return NULL;
|
|
}
|
|
|
|
static char *
|
|
plugin_resolve_relative_filename (const char *filename)
|
|
{
|
|
struct strv paths = strv_make ();
|
|
get_xdg_data_dirs (&paths);
|
|
char *result = resolve_relative_filename_generic
|
|
(&paths, PROGRAM_NAME "/plugins/", filename);
|
|
strv_free (&paths);
|
|
return result;
|
|
}
|
|
|
|
static struct plugin *
|
|
plugin_load_by_name (struct app_context *ctx, const char *name,
|
|
struct error **e)
|
|
{
|
|
struct plugin *plugin = plugin_find (ctx, name);
|
|
if (plugin)
|
|
{
|
|
error_set (e, "plugin already loaded");
|
|
return NULL;
|
|
}
|
|
|
|
// As a side effect, a plugin can be loaded multiple times by giving
|
|
// various relative or non-relative paths to the function; this is not
|
|
// supposed to be fool-proof though, that requires other mechanisms
|
|
char *filename = resolve_filename (name, plugin_resolve_relative_filename);
|
|
if (!filename)
|
|
{
|
|
error_set (e, "file not found");
|
|
return NULL;
|
|
}
|
|
|
|
plugin = plugin_load_from_filename (ctx, filename, e);
|
|
free (filename);
|
|
return plugin;
|
|
}
|
|
|
|
static void
|
|
plugin_load (struct app_context *ctx, const char *name)
|
|
{
|
|
struct error *e = NULL;
|
|
struct plugin *plugin = plugin_load_by_name (ctx, name, &e);
|
|
if (plugin)
|
|
{
|
|
// FIXME: this way the real name isn't available to the plugin on load,
|
|
// which has effect on e.g. plugin_config_name()
|
|
cstr_set (&plugin->name, xstrdup (name));
|
|
|
|
log_global_status (ctx, "Plugin \"#s\" loaded", name);
|
|
LIST_PREPEND (ctx->plugins, plugin);
|
|
}
|
|
else
|
|
{
|
|
log_global_error (ctx, "Can't load plugin \"#s\": #s",
|
|
name, e->message);
|
|
error_free (e);
|
|
}
|
|
}
|
|
|
|
static void
|
|
plugin_unload (struct app_context *ctx, const char *name)
|
|
{
|
|
struct plugin *plugin = plugin_find (ctx, name);
|
|
if (!plugin)
|
|
log_global_error (ctx, "Can't unload plugin \"#s\": #s",
|
|
name, "plugin not loaded");
|
|
else
|
|
{
|
|
log_global_status (ctx, "Plugin \"#s\" unloaded", name);
|
|
LIST_UNLINK (ctx->plugins, plugin);
|
|
plugin_destroy (plugin);
|
|
}
|
|
}
|
|
|
|
static void
|
|
load_plugins (struct app_context *ctx)
|
|
{
|
|
const char *plugins = get_config_string
|
|
(ctx->config.root, "behaviour.plugin_autoload");
|
|
if (plugins)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (plugins, ",", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
plugin_load (ctx, v.vector[i]);
|
|
strv_free (&v);
|
|
}
|
|
}
|
|
|
|
// --- User input handling -----------------------------------------------------
|
|
|
|
// HANDLER_NEEDS_REG is primarily for message sending commands,
|
|
// as they may want to log buffer lines and use our current nickname
|
|
|
|
enum handler_flags
|
|
{
|
|
HANDLER_SERVER = (1 << 0), ///< Server context required
|
|
HANDLER_NEEDS_REG = (1 << 1), ///< Server registration required
|
|
HANDLER_CHANNEL_FIRST = (1 << 2), ///< Channel required, first argument
|
|
HANDLER_CHANNEL_LAST = (1 << 3) ///< Channel required, last argument
|
|
};
|
|
|
|
struct handler_args
|
|
{
|
|
struct app_context *ctx; ///< Application context
|
|
struct buffer *buffer; ///< Current buffer
|
|
struct server *s; ///< Related server
|
|
const char *channel_name; ///< Related channel name
|
|
char *arguments; ///< Command arguments
|
|
};
|
|
|
|
/// Cuts the longest non-whitespace portion of text and advances the pointer
|
|
static char *
|
|
cut_word (char **s)
|
|
{
|
|
char *start = *s;
|
|
size_t word_len = strcspn (*s, WORD_BREAKING_CHARS);
|
|
char *end = start + word_len;
|
|
*s = end + strspn (end, WORD_BREAKING_CHARS);
|
|
*end = '\0';
|
|
return start;
|
|
}
|
|
|
|
/// Validates a word to be cut from a string
|
|
typedef bool (*word_validator_fn) (void *, char *);
|
|
|
|
static char *
|
|
maybe_cut_word (char **s, word_validator_fn validator, void *user_data)
|
|
{
|
|
char *start = *s;
|
|
size_t word_len = strcspn (*s, WORD_BREAKING_CHARS);
|
|
|
|
char *word = xstrndup (start, word_len);
|
|
bool ok = validator (user_data, word);
|
|
free (word);
|
|
|
|
if (!ok)
|
|
return NULL;
|
|
|
|
char *end = start + word_len;
|
|
*s = end + strspn (end, WORD_BREAKING_CHARS);
|
|
*end = '\0';
|
|
return start;
|
|
}
|
|
|
|
static char *
|
|
maybe_cut_word_from_end (char **s, word_validator_fn validator, void *user_data)
|
|
{
|
|
// Find the start and end of the last word
|
|
// Contrary to maybe_cut_word(), we ignore all whitespace at the end
|
|
char *start = *s, *end = start + strlen (start);
|
|
while (end > start && strchr (WORD_BREAKING_CHARS, end [-1]))
|
|
end--;
|
|
char *word = end;
|
|
while (word > start && !strchr (WORD_BREAKING_CHARS, word[-1]))
|
|
word--;
|
|
|
|
// There's just one word at maximum, starting at the beginning
|
|
if (word == start)
|
|
return maybe_cut_word (s, validator, user_data);
|
|
|
|
char *tmp = xstrndup (word, word - start);
|
|
bool ok = validator (user_data, tmp);
|
|
free (tmp);
|
|
|
|
if (!ok)
|
|
return NULL;
|
|
|
|
// It doesn't start at the beginning, cut it off and return it
|
|
word[-1] = *end = '\0';
|
|
return word;
|
|
}
|
|
|
|
static bool
|
|
validate_channel_name (void *user_data, char *word)
|
|
{
|
|
return irc_is_channel (user_data, word);
|
|
}
|
|
|
|
static char *
|
|
try_get_channel (struct handler_args *a,
|
|
char *(*cutter) (char **, word_validator_fn, void *))
|
|
{
|
|
char *channel_name = cutter (&a->arguments, validate_channel_name, a->s);
|
|
if (channel_name)
|
|
return channel_name;
|
|
if (a->buffer->type == BUFFER_CHANNEL)
|
|
return a->buffer->channel->name;
|
|
return NULL;
|
|
}
|
|
|
|
static bool
|
|
try_handle_buffer_goto (struct app_context *ctx, const char *word)
|
|
{
|
|
unsigned long n;
|
|
if (!xstrtoul (&n, word, 10))
|
|
return false;
|
|
|
|
if (n > INT_MAX || !buffer_goto (ctx, n))
|
|
log_global_error (ctx, "#s: #s", "No such buffer", word);
|
|
return true;
|
|
}
|
|
|
|
static struct buffer *
|
|
try_decode_buffer (struct app_context *ctx, const char *word)
|
|
{
|
|
unsigned long n;
|
|
struct buffer *buffer = NULL;
|
|
if (xstrtoul (&n, word, 10) && n <= INT_MAX)
|
|
buffer = buffer_at_index (ctx, n);
|
|
if (buffer || (buffer = buffer_by_name (ctx, word)))
|
|
return buffer;
|
|
|
|
// Basic case insensitive partial matching -- at most one buffer can match
|
|
int n_matches = 0;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
{
|
|
char *string = xstrdup (iter->name);
|
|
char *pattern = xstrdup_printf ("*%s*", word);
|
|
for (char *p = string; *p; p++) *p = tolower_ascii (*p);
|
|
for (char *p = pattern; *p; p++) *p = tolower_ascii (*p);
|
|
if (!fnmatch (pattern, string, 0))
|
|
{
|
|
n_matches++;
|
|
buffer = iter;
|
|
}
|
|
free (string);
|
|
free (pattern);
|
|
}
|
|
return n_matches == 1 ? buffer : NULL;
|
|
}
|
|
|
|
static void
|
|
show_buffers_list (struct app_context *ctx)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Buffers list:");
|
|
|
|
int i = 1;
|
|
LIST_FOR_EACH (struct buffer, iter, ctx->buffers)
|
|
{
|
|
struct str s = str_make ();
|
|
int new = iter->new_messages_count - iter->new_unimportant_count;
|
|
if (new && iter != ctx->current_buffer)
|
|
str_append_printf (&s, " (%d%s)", new, &"!"[!iter->highlighted]);
|
|
log_global_indent (ctx,
|
|
" [#d] #s#&s", i++, iter->name, str_steal (&s));
|
|
}
|
|
}
|
|
|
|
static void
|
|
part_channel (struct server *s, const char *channel_name, const char *reason)
|
|
{
|
|
if (*reason)
|
|
irc_send (s, "PART %s :%s", channel_name, reason);
|
|
else
|
|
irc_send (s, "PART %s", channel_name);
|
|
|
|
struct channel *channel;
|
|
if ((channel = str_map_find (&s->irc_channels, channel_name)))
|
|
channel->left_manually = true;
|
|
}
|
|
|
|
static bool
|
|
handle_buffer_goto (struct app_context *ctx, struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
const char *which = cut_word (&a->arguments);
|
|
struct buffer *buffer = try_decode_buffer (ctx, which);
|
|
if (buffer)
|
|
buffer_activate (ctx, buffer);
|
|
else
|
|
log_global_error (ctx, "#s: #s", "No such buffer", which);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
handle_buffer_close (struct app_context *ctx, struct handler_args *a)
|
|
{
|
|
struct buffer *buffer = NULL;
|
|
const char *which = NULL;
|
|
if (!*a->arguments)
|
|
buffer = a->buffer;
|
|
else
|
|
buffer = try_decode_buffer (ctx, (which = cut_word (&a->arguments)));
|
|
|
|
if (!buffer)
|
|
log_global_error (ctx, "#s: #s", "No such buffer", which);
|
|
else if (buffer == ctx->global_buffer)
|
|
log_global_error (ctx, "Can't close the global buffer");
|
|
else if (buffer->type == BUFFER_SERVER)
|
|
log_global_error (ctx, "Can't close a server buffer");
|
|
else
|
|
{
|
|
// The user would be unable to recreate the buffer otherwise
|
|
if (buffer->type == BUFFER_CHANNEL
|
|
&& irc_channel_is_joined (buffer->channel))
|
|
part_channel (buffer->server, buffer->channel->name, "");
|
|
buffer_remove_safe (ctx, buffer);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
handle_buffer_move (struct app_context *ctx, struct handler_args *a)
|
|
{
|
|
unsigned long request;
|
|
if (!xstrtoul (&request, a->arguments, 10))
|
|
return false;
|
|
|
|
if (request == 0 || request > (unsigned long) buffer_count (ctx))
|
|
{
|
|
log_global_error (ctx, "#s: #s",
|
|
"Can't move buffer", "requested position is out of range");
|
|
return true;
|
|
}
|
|
buffer_move (ctx, a->buffer, request);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_buffer (struct handler_args *a)
|
|
{
|
|
struct app_context *ctx = a->ctx;
|
|
char *action = cut_word (&a->arguments);
|
|
if (try_handle_buffer_goto (ctx, action))
|
|
return true;
|
|
|
|
bool result = true;
|
|
if (!*action || !strcasecmp_ascii (action, "list"))
|
|
show_buffers_list (ctx);
|
|
else if (!strcasecmp_ascii (action, "clear"))
|
|
{
|
|
buffer_clear (a->buffer);
|
|
buffer_print_backlog (ctx, a->buffer);
|
|
}
|
|
else if (!strcasecmp_ascii (action, "move"))
|
|
result = handle_buffer_move (ctx, a);
|
|
else if (!strcasecmp_ascii (action, "goto"))
|
|
result = handle_buffer_goto (ctx, a);
|
|
else if (!strcasecmp_ascii (action, "close"))
|
|
handle_buffer_close (ctx, a);
|
|
else
|
|
result = false;
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
replace_string_array
|
|
(struct config_item *item, struct strv *array, struct error **e)
|
|
{
|
|
char *changed = strv_join (array, ",");
|
|
struct str tmp = { .str = changed, .len = strlen (changed) };
|
|
bool result = config_item_set_from (item,
|
|
config_item_string_array (&tmp), e);
|
|
free (changed);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
handle_command_set_add
|
|
(struct config_item *item, const char *value, struct error **e)
|
|
{
|
|
struct strv items = strv_make ();
|
|
if (item->type != CONFIG_ITEM_NULL)
|
|
cstr_split (item->value.string.str, ",", false, &items);
|
|
if (items.len == 1 && !*items.vector[0])
|
|
strv_reset (&items);
|
|
|
|
// FIXME: handle multiple items properly
|
|
bool result = false;
|
|
if (strv_find (&items, value) != -1)
|
|
error_set (e, "already present in the array: %s", value);
|
|
else
|
|
{
|
|
strv_append (&items, value);
|
|
result = replace_string_array (item, &items, e);
|
|
}
|
|
|
|
strv_free (&items);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
handle_command_set_remove
|
|
(struct config_item *item, const char *value, struct error **e)
|
|
{
|
|
struct strv items = strv_make ();
|
|
if (item->type != CONFIG_ITEM_NULL)
|
|
cstr_split (item->value.string.str, ",", false, &items);
|
|
if (items.len == 1 && !*items.vector[0])
|
|
strv_reset (&items);
|
|
|
|
// FIXME: handle multiple items properly
|
|
bool result = false;
|
|
ssize_t i = strv_find (&items, value);
|
|
if (i == -1)
|
|
error_set (e, "not present in the array: %s", value);
|
|
else
|
|
{
|
|
strv_remove (&items, i);
|
|
result = replace_string_array (item, &items, e);
|
|
}
|
|
|
|
strv_free (&items);
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
handle_command_set_assign_item (struct app_context *ctx,
|
|
char *key, struct config_item *new_, bool add, bool remove)
|
|
{
|
|
struct config_item *item =
|
|
config_item_get (ctx->config.root, key, NULL);
|
|
hard_assert (item);
|
|
|
|
struct error *e = NULL;
|
|
if (!item->schema)
|
|
error_set (&e, "option not recognized");
|
|
else if (!add && !remove)
|
|
config_item_set_from (item, config_item_clone (new_), &e);
|
|
else if (item->schema->type != CONFIG_ITEM_STRING_ARRAY)
|
|
error_set (&e, "not a string array");
|
|
else if (add)
|
|
handle_command_set_add (item, new_->value.string.str, &e);
|
|
else if (remove)
|
|
handle_command_set_remove (item, new_->value.string.str, &e);
|
|
|
|
if (e)
|
|
{
|
|
log_global_error (ctx,
|
|
"Failed to set option \"#s\": #s", key, e->message);
|
|
error_free (e);
|
|
}
|
|
else
|
|
{
|
|
struct strv tmp = strv_make ();
|
|
dump_matching_options (ctx->config.root, key, &tmp);
|
|
log_global_status (ctx, "Option changed: #s", tmp.vector[0]);
|
|
strv_free (&tmp);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
handle_command_set_assign
|
|
(struct app_context *ctx, struct strv *all, char *arguments)
|
|
{
|
|
char *op = cut_word (&arguments);
|
|
bool add = false;
|
|
bool remove = false;
|
|
|
|
if (!strcmp (op, "+=")) add = true;
|
|
else if (!strcmp (op, "-=")) remove = true;
|
|
else if (strcmp (op, "=")) return false;
|
|
|
|
if (!*arguments)
|
|
return false;
|
|
|
|
struct error *e = NULL;
|
|
struct config_item *new_ =
|
|
config_item_parse (arguments, strlen (arguments), true, &e);
|
|
if (e)
|
|
{
|
|
log_global_error (ctx, "Invalid value: #s", e->message);
|
|
error_free (e);
|
|
return true;
|
|
}
|
|
|
|
if ((add | remove) && !config_item_type_is_string (new_->type))
|
|
{
|
|
log_global_error (ctx, "+= / -= operators need a string argument");
|
|
config_item_destroy (new_);
|
|
return true;
|
|
}
|
|
for (size_t i = 0; i < all->len; i++)
|
|
{
|
|
char *key = cstr_cut_until (all->vector[i], " ");
|
|
handle_command_set_assign_item (ctx, key, new_, add, remove);
|
|
free (key);
|
|
}
|
|
config_item_destroy (new_);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_set (struct handler_args *a)
|
|
{
|
|
struct app_context *ctx = a->ctx;
|
|
char *option = "*";
|
|
if (*a->arguments)
|
|
option = cut_word (&a->arguments);
|
|
|
|
struct strv all = strv_make ();
|
|
dump_matching_options (ctx->config.root, option, &all);
|
|
|
|
bool result = true;
|
|
if (!all.len)
|
|
log_global_error (ctx, "No matches: #s", option);
|
|
else if (!*a->arguments)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
for (size_t i = 0; i < all.len; i++)
|
|
log_global_indent (ctx, "#s", all.vector[i]);
|
|
}
|
|
else
|
|
result = handle_command_set_assign (ctx, &all, a->arguments);
|
|
|
|
strv_free (&all);
|
|
return result;
|
|
}
|
|
|
|
static bool
|
|
handle_command_save (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
return false;
|
|
|
|
save_configuration (a->ctx);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
show_plugin_list (struct app_context *ctx)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Plugins:");
|
|
LIST_FOR_EACH (struct plugin, iter, ctx->plugins)
|
|
log_global_indent (ctx, " #s", iter->name);
|
|
}
|
|
|
|
static bool
|
|
handle_command_plugin (struct handler_args *a)
|
|
{
|
|
char *action = cut_word (&a->arguments);
|
|
if (!*action || !strcasecmp_ascii (action, "list"))
|
|
show_plugin_list (a->ctx);
|
|
else if (!strcasecmp_ascii (action, "load"))
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
plugin_load (a->ctx, cut_word (&a->arguments));
|
|
}
|
|
else if (!strcasecmp_ascii (action, "unload"))
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
plugin_unload (a->ctx, cut_word (&a->arguments));
|
|
}
|
|
else
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
show_aliases_list (struct app_context *ctx)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Aliases:");
|
|
|
|
struct str_map *aliases = get_aliases_config (ctx);
|
|
if (!aliases->len)
|
|
{
|
|
log_global_indent (ctx, " (none)");
|
|
return true;
|
|
}
|
|
|
|
struct str_map_iter iter = str_map_iter_make (aliases);
|
|
struct config_item *alias;
|
|
while ((alias = str_map_iter_next (&iter)))
|
|
{
|
|
struct str definition = str_make ();
|
|
if (config_item_type_is_string (alias->type))
|
|
config_item_write_string (&definition, &alias->value.string);
|
|
else
|
|
str_append (&definition, "alias definition is not a string");
|
|
log_global_indent (ctx, " /#s: #s", iter.link->key, definition.str);
|
|
str_free (&definition);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_alias (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return show_aliases_list (a->ctx);
|
|
|
|
// TODO: validate the name; maybe also while loading configuration
|
|
char *name = cut_word (&a->arguments);
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
struct config_item *alias = config_item_string_from_cstr (a->arguments);
|
|
|
|
struct str definition = str_make ();
|
|
config_item_write_string (&definition, &alias->value.string);
|
|
str_map_set (get_aliases_config (a->ctx), name, alias);
|
|
log_global_status (a->ctx, "Created alias /#s: #s", name, definition.str);
|
|
str_free (&definition);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_unalias (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
struct str_map *aliases = get_aliases_config (a->ctx);
|
|
while (*a->arguments)
|
|
{
|
|
char *name = cut_word (&a->arguments);
|
|
if (!str_map_find (aliases, name))
|
|
log_global_error (a->ctx, "No such alias: #s", name);
|
|
else
|
|
{
|
|
str_map_set (aliases, name, NULL);
|
|
log_global_status (a->ctx, "Alias removed: #s", name);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_msg (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (!*a->arguments)
|
|
log_server_error (a->s, a->s->buffer, "No text to send");
|
|
else
|
|
SEND_AUTOSPLIT_PRIVMSG (a->s, target, a->arguments);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_query (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (irc_is_channel (a->s, irc_skip_statusmsg (a->s, target)))
|
|
log_server_error (a->s, a->s->buffer, "Cannot query a channel");
|
|
else if (!*a->arguments)
|
|
buffer_activate (a->ctx, irc_get_or_make_user_buffer (a->s, target));
|
|
else
|
|
{
|
|
buffer_activate (a->ctx, irc_get_or_make_user_buffer (a->s, target));
|
|
SEND_AUTOSPLIT_PRIVMSG (a->s, target, a->arguments);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_notice (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (!*a->arguments)
|
|
log_server_error (a->s, a->s->buffer, "No text to send");
|
|
else
|
|
SEND_AUTOSPLIT_NOTICE (a->s, target, a->arguments);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_ctcp (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *tag = cut_word (&a->arguments);
|
|
cstr_transform (tag, toupper_ascii);
|
|
|
|
if (*a->arguments)
|
|
irc_send (a->s, "PRIVMSG %s :\x01%s %s\x01", target, tag, a->arguments);
|
|
else
|
|
irc_send (a->s, "PRIVMSG %s :\x01%s\x01", target, tag);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_me (struct handler_args *a)
|
|
{
|
|
if (a->buffer->type == BUFFER_CHANNEL)
|
|
SEND_AUTOSPLIT_ACTION (a->s,
|
|
a->buffer->channel->name, a->arguments);
|
|
else if (a->buffer->type == BUFFER_PM)
|
|
SEND_AUTOSPLIT_ACTION (a->s,
|
|
a->buffer->user->nickname, a->arguments);
|
|
else
|
|
log_server_error (a->s, a->s->buffer,
|
|
"Can't do this from a server buffer (#s)",
|
|
"send CTCP actions");
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_quit (struct handler_args *a)
|
|
{
|
|
initiate_quit (a->ctx, *a->arguments ? a->arguments : NULL);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_join (struct handler_args *a)
|
|
{
|
|
// XXX: send the last known channel key?
|
|
if (irc_is_channel (a->s, a->arguments))
|
|
// XXX: we may want to split the list of channels
|
|
irc_send (a->s, "JOIN %s", a->arguments);
|
|
else if (a->buffer->type != BUFFER_CHANNEL)
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't join",
|
|
"no channel name given and this buffer is not a channel");
|
|
else if (irc_channel_is_joined (a->buffer->channel))
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't join",
|
|
"you already are on the channel");
|
|
else if (*a->arguments)
|
|
irc_send (a->s, "JOIN %s :%s", a->buffer->channel->name, a->arguments);
|
|
else
|
|
irc_send (a->s, "JOIN %s", a->buffer->channel->name);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_part (struct handler_args *a)
|
|
{
|
|
if (irc_is_channel (a->s, a->arguments))
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (cut_word (&a->arguments), ",", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
part_channel (a->s, v.vector[i], a->arguments);
|
|
strv_free (&v);
|
|
}
|
|
else if (a->buffer->type != BUFFER_CHANNEL)
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't part",
|
|
"no channel name given and this buffer is not a channel");
|
|
else if (!irc_channel_is_joined (a->buffer->channel))
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't part",
|
|
"you're not on the channel");
|
|
else
|
|
part_channel (a->s, a->buffer->channel->name, a->arguments);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
cycle_channel (struct server *s, const char *channel_name, const char *reason)
|
|
{
|
|
// If a channel key is set, we must specify it when rejoining
|
|
const char *key = NULL;
|
|
struct channel *channel;
|
|
if ((channel = str_map_find (&s->irc_channels, channel_name)))
|
|
key = str_map_find (&channel->param_modes, "k");
|
|
|
|
if (*reason)
|
|
irc_send (s, "PART %s :%s", channel_name, reason);
|
|
else
|
|
irc_send (s, "PART %s", channel_name);
|
|
|
|
if (key)
|
|
irc_send (s, "JOIN %s :%s", channel_name, key);
|
|
else
|
|
irc_send (s, "JOIN %s", channel_name);
|
|
}
|
|
|
|
static bool
|
|
handle_command_cycle (struct handler_args *a)
|
|
{
|
|
if (irc_is_channel (a->s, a->arguments))
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (cut_word (&a->arguments), ",", true, &v);
|
|
for (size_t i = 0; i < v.len; i++)
|
|
cycle_channel (a->s, v.vector[i], a->arguments);
|
|
strv_free (&v);
|
|
}
|
|
else if (a->buffer->type != BUFFER_CHANNEL)
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't cycle",
|
|
"no channel name given and this buffer is not a channel");
|
|
else if (!irc_channel_is_joined (a->buffer->channel))
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't cycle",
|
|
"you're not on the channel");
|
|
else
|
|
cycle_channel (a->s, a->buffer->channel->name, a->arguments);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_mode (struct handler_args *a)
|
|
{
|
|
// Channel names prefixed by "+" collide with mode strings,
|
|
// so we just disallow specifying these channels
|
|
char *target = NULL;
|
|
if (strchr ("+-\0", *a->arguments))
|
|
{
|
|
if (a->buffer->type == BUFFER_CHANNEL)
|
|
target = a->buffer->channel->name;
|
|
if (a->buffer->type == BUFFER_PM)
|
|
target = a->buffer->user->nickname;
|
|
if (a->buffer->type == BUFFER_SERVER)
|
|
target = a->s->irc_user->nickname;
|
|
}
|
|
else
|
|
// If there a->arguments and they don't begin with a mode string,
|
|
// they're either a user name or a channel name
|
|
target = cut_word (&a->arguments);
|
|
|
|
if (!target)
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't change mode",
|
|
"no target given and this buffer is neither a PM nor a channel");
|
|
else if (*a->arguments)
|
|
// XXX: split channel mode params as necessary using irc_max_modes?
|
|
irc_send (a->s, "MODE %s %s", target, a->arguments);
|
|
else
|
|
irc_send (a->s, "MODE %s", target);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_topic (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
// FIXME: there's no way to start the topic with whitespace
|
|
// FIXME: there's no way to unset the topic;
|
|
// we could adopt the Tcl style of "-switches" with "--" sentinels
|
|
irc_send (a->s, "TOPIC %s :%s", a->channel_name, a->arguments);
|
|
else
|
|
irc_send (a->s, "TOPIC %s", a->channel_name);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_kick (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (*a->arguments)
|
|
irc_send (a->s, "KICK %s %s :%s",
|
|
a->channel_name, target, a->arguments);
|
|
else
|
|
irc_send (a->s, "KICK %s %s", a->channel_name, target);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_kickban (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (strpbrk (target, "!@*?"))
|
|
return false;
|
|
|
|
// XXX: how about other masks?
|
|
irc_send (a->s, "MODE %s +b %s!*@*", a->channel_name, target);
|
|
if (*a->arguments)
|
|
irc_send (a->s, "KICK %s %s :%s",
|
|
a->channel_name, target, a->arguments);
|
|
else
|
|
irc_send (a->s, "KICK %s %s", a->channel_name, target);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
mass_channel_mode (struct server *s, const char *channel_name,
|
|
bool adding, char mode_char, struct strv *v)
|
|
{
|
|
size_t n;
|
|
for (size_t i = 0; i < v->len; i += n)
|
|
{
|
|
struct str modes = str_make ();
|
|
struct str params = str_make ();
|
|
|
|
n = MIN (v->len - i, s->irc_max_modes);
|
|
str_append_printf (&modes, "MODE %s %c", channel_name, "-+"[adding]);
|
|
for (size_t k = 0; k < n; k++)
|
|
{
|
|
str_append_c (&modes, mode_char);
|
|
str_append_printf (¶ms, " %s", v->vector[i + k]);
|
|
}
|
|
|
|
irc_send (s, "%s%s", modes.str, params.str);
|
|
|
|
str_free (&modes);
|
|
str_free (¶ms);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mass_channel_mode_mask_list
|
|
(struct handler_args *a, bool adding, char mode_char)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (a->arguments, " ", true, &v);
|
|
|
|
// XXX: this may be a bit too trivial; we could also map nicknames
|
|
// to information from WHO polling or userhost-in-names
|
|
for (size_t i = 0; i < v.len; i++)
|
|
{
|
|
char *target = v.vector[i];
|
|
// TODO: support EXTBAN and leave those alone, too
|
|
if (strpbrk (target, "!@*?"))
|
|
continue;
|
|
|
|
v.vector[i] = xstrdup_printf ("%s!*@*", target);
|
|
free (target);
|
|
}
|
|
|
|
mass_channel_mode (a->s, a->channel_name, adding, mode_char, &v);
|
|
strv_free (&v);
|
|
}
|
|
|
|
static bool
|
|
handle_command_ban (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
mass_channel_mode_mask_list (a, true, 'b');
|
|
else
|
|
irc_send (a->s, "MODE %s +b", a->channel_name);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_unban (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
mass_channel_mode_mask_list (a, false, 'b');
|
|
else
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_invite (struct handler_args *a)
|
|
{
|
|
struct strv v = strv_make ();
|
|
cstr_split (a->arguments, " ", true, &v);
|
|
|
|
bool result = !!v.len;
|
|
for (size_t i = 0; i < v.len; i++)
|
|
irc_send (a->s, "INVITE %s %s", v.vector[i], a->channel_name);
|
|
|
|
strv_free (&v);
|
|
return result;
|
|
}
|
|
|
|
static struct server *
|
|
resolve_server (struct app_context *ctx, struct handler_args *a,
|
|
const char *command_name)
|
|
{
|
|
struct server *s = NULL;
|
|
if (*a->arguments)
|
|
{
|
|
char *server_name = cut_word (&a->arguments);
|
|
if (!(s = str_map_find (&ctx->servers, server_name)))
|
|
log_global_error (ctx, "/#s: #s: #s",
|
|
command_name, "no such server", server_name);
|
|
}
|
|
else if (a->buffer->type == BUFFER_GLOBAL)
|
|
log_global_error (ctx, "/#s: #s",
|
|
command_name, "no server name given and this buffer is global");
|
|
else
|
|
s = a->buffer->server;
|
|
return s;
|
|
}
|
|
|
|
static bool
|
|
handle_command_connect (struct handler_args *a)
|
|
{
|
|
struct server *s = NULL;
|
|
if (!(s = resolve_server (a->ctx, a, "connect")))
|
|
return true;
|
|
|
|
if (irc_is_connected (s))
|
|
{
|
|
log_server_error (s, s->buffer, "Already connected");
|
|
return true;
|
|
}
|
|
if (s->state == IRC_CONNECTING)
|
|
irc_destroy_connector (s);
|
|
|
|
irc_cancel_timers (s);
|
|
|
|
s->reconnect_attempt = 0;
|
|
irc_initiate_connect (s);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_disconnect (struct handler_args *a)
|
|
{
|
|
struct server *s = NULL;
|
|
if (!(s = resolve_server (a->ctx, a, "disconnect")))
|
|
return true;
|
|
|
|
if (s->state == IRC_CONNECTING)
|
|
{
|
|
log_server_status (s, s->buffer, "Connecting aborted");
|
|
irc_destroy_connector (s);
|
|
}
|
|
else if (poller_timer_is_active (&s->reconnect_tmr))
|
|
{
|
|
log_server_status (s, s->buffer, "Connecting aborted");
|
|
poller_timer_reset (&s->reconnect_tmr);
|
|
}
|
|
else if (!irc_is_connected (s))
|
|
log_server_error (s, s->buffer, "Not connected");
|
|
else
|
|
irc_initiate_disconnect (s, *a->arguments ? a->arguments : NULL);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
show_servers_list (struct app_context *ctx)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Servers list:");
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&ctx->servers);
|
|
struct server *s;
|
|
while ((s = str_map_iter_next (&iter)))
|
|
log_global_indent (ctx, " #s", s->name);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_server_add (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
struct app_context *ctx = a->ctx;
|
|
char *name = cut_word (&a->arguments);
|
|
const char *err;
|
|
if ((err = check_server_name_for_addition (ctx, name)))
|
|
log_global_error (ctx, "Cannot create server `#s': #s", name, err);
|
|
else
|
|
{
|
|
server_add_new (ctx, name);
|
|
log_global_status (ctx, "Server added: #s", name);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_server_remove (struct handler_args *a)
|
|
{
|
|
struct app_context *ctx = a->ctx;
|
|
struct server *s = NULL;
|
|
if (!(s = resolve_server (ctx, a, "server")))
|
|
return true;
|
|
|
|
if (irc_is_connected (s))
|
|
log_server_error (s, s->buffer, "Can't remove a connected server");
|
|
else
|
|
{
|
|
char *name = xstrdup (s->name);
|
|
server_remove (ctx, s);
|
|
log_global_status (ctx, "Server removed: #s", name);
|
|
free (name);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_server_rename (struct handler_args *a)
|
|
{
|
|
struct app_context *ctx = a->ctx;
|
|
if (!*a->arguments)
|
|
return false;
|
|
char *old_name = cut_word (&a->arguments);
|
|
if (!*a->arguments)
|
|
return false;
|
|
char *new_name = cut_word (&a->arguments);
|
|
|
|
struct server *s;
|
|
const char *err;
|
|
if (!(s = str_map_find (&ctx->servers, old_name)))
|
|
log_global_error (ctx, "/#s: #s: #s",
|
|
"server", "no such server", old_name);
|
|
else if ((err = check_server_name_for_addition (ctx, new_name)))
|
|
log_global_error (ctx,
|
|
"Cannot rename server to `#s': #s", new_name, err);
|
|
else
|
|
{
|
|
server_rename (ctx, s, new_name);
|
|
log_global_status (ctx, "Server renamed: #s to #s", old_name, new_name);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_server (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return show_servers_list (a->ctx);
|
|
|
|
char *action = cut_word (&a->arguments);
|
|
if (!strcasecmp_ascii (action, "list"))
|
|
return show_servers_list (a->ctx);
|
|
if (!strcasecmp_ascii (action, "add"))
|
|
return handle_server_add (a);
|
|
if (!strcasecmp_ascii (action, "remove"))
|
|
return handle_server_remove (a);
|
|
if (!strcasecmp_ascii (action, "rename"))
|
|
return handle_server_rename (a);
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
handle_command_names (struct handler_args *a)
|
|
{
|
|
char *channel_name = try_get_channel (a, maybe_cut_word);
|
|
if (channel_name)
|
|
irc_send (a->s, "NAMES %s", channel_name);
|
|
else
|
|
irc_send (a->s, "NAMES");
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_whois (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
irc_send (a->s, "WHOIS %s", a->arguments);
|
|
else if (a->buffer->type == BUFFER_PM)
|
|
irc_send (a->s, "WHOIS %s", a->buffer->user->nickname);
|
|
else if (a->buffer->type == BUFFER_SERVER)
|
|
irc_send (a->s, "WHOIS %s", a->s->irc_user->nickname);
|
|
else
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't request info",
|
|
"no target given and this buffer is neither a PM nor a server");
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_whowas (struct handler_args *a)
|
|
{
|
|
if (*a->arguments)
|
|
irc_send (a->s, "WHOWAS %s", a->arguments);
|
|
else if (a->buffer->type == BUFFER_PM)
|
|
irc_send (a->s, "WHOWAS %s", a->buffer->user->nickname);
|
|
else
|
|
log_server_error (a->s, a->buffer, "#s: #s", "Can't request info",
|
|
"no target given and this buffer is not a PM");
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_kill (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
char *target = cut_word (&a->arguments);
|
|
if (*a->arguments)
|
|
irc_send (a->s, "KILL %s :%s", target, a->arguments);
|
|
else
|
|
irc_send (a->s, "KILL %s", target);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_nick (struct handler_args *a)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
irc_send (a->s, "NICK %s", cut_word (&a->arguments));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_quote (struct handler_args *a)
|
|
{
|
|
irc_send (a->s, "%s", a->arguments);
|
|
return true;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
handle_command_channel_mode
|
|
(struct handler_args *a, bool adding, char mode_char)
|
|
{
|
|
if (!*a->arguments)
|
|
return false;
|
|
|
|
struct strv v = strv_make ();
|
|
cstr_split (a->arguments, " ", true, &v);
|
|
mass_channel_mode (a->s, a->channel_name, adding, mode_char, &v);
|
|
strv_free (&v);
|
|
return true;
|
|
}
|
|
|
|
#define CHANMODE_HANDLER(name, adding, mode_char) \
|
|
static bool \
|
|
handle_command_ ## name (struct handler_args *a) \
|
|
{ \
|
|
return handle_command_channel_mode (a, (adding), (mode_char)); \
|
|
}
|
|
|
|
CHANMODE_HANDLER (op, true, 'o') CHANMODE_HANDLER (deop, false, 'o')
|
|
CHANMODE_HANDLER (voice, true, 'v') CHANMODE_HANDLER (devoice, false, 'v')
|
|
|
|
#define TRIVIAL_HANDLER(name, command) \
|
|
static bool \
|
|
handle_command_ ## name (struct handler_args *a) \
|
|
{ \
|
|
if (*a->arguments) \
|
|
irc_send (a->s, command " %s", a->arguments); \
|
|
else \
|
|
irc_send (a->s, command); \
|
|
return true; \
|
|
}
|
|
|
|
TRIVIAL_HANDLER (list, "LIST")
|
|
TRIVIAL_HANDLER (who, "WHO")
|
|
TRIVIAL_HANDLER (motd, "MOTD")
|
|
TRIVIAL_HANDLER (oper, "OPER")
|
|
TRIVIAL_HANDLER (stats, "STATS")
|
|
TRIVIAL_HANDLER (away, "AWAY")
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool handle_command_help (struct handler_args *);
|
|
|
|
static struct command_handler
|
|
{
|
|
const char *name;
|
|
const char *description;
|
|
const char *usage;
|
|
bool (*handler) (struct handler_args *a);
|
|
enum handler_flags flags;
|
|
}
|
|
g_command_handlers[] =
|
|
{
|
|
{ "help", "Show help",
|
|
"[<command> | <option>]",
|
|
handle_command_help, 0 },
|
|
{ "quit", "Quit the program",
|
|
"[<message>]",
|
|
handle_command_quit, 0 },
|
|
{ "buffer", "Manage buffers",
|
|
"<N> | list | clear | move <N> | goto <N or name> | close [<N or name>]",
|
|
handle_command_buffer, 0 },
|
|
{ "set", "Manage configuration",
|
|
"[<option>]",
|
|
handle_command_set, 0 },
|
|
{ "save", "Save configuration",
|
|
NULL,
|
|
handle_command_save, 0 },
|
|
{ "plugin", "Manage plugins",
|
|
"list | load <name> | unload <name>",
|
|
handle_command_plugin, 0 },
|
|
|
|
{ "alias", "List or set aliases",
|
|
"[<name> <definition>]",
|
|
handle_command_alias, 0 },
|
|
{ "unalias", "Unset aliases",
|
|
"<name>...",
|
|
handle_command_unalias, 0 },
|
|
|
|
{ "msg", "Send message to a nick or channel",
|
|
"<target> <message>",
|
|
handle_command_msg, HANDLER_SERVER | HANDLER_NEEDS_REG },
|
|
{ "query", "Send a private message to a nick",
|
|
"<nick> <message>",
|
|
handle_command_query, HANDLER_SERVER | HANDLER_NEEDS_REG },
|
|
{ "notice", "Send notice to a nick or channel",
|
|
"<target> <message>",
|
|
handle_command_notice, HANDLER_SERVER | HANDLER_NEEDS_REG },
|
|
{ "ctcp", "Send a CTCP query",
|
|
"<target> <tag>",
|
|
handle_command_ctcp, HANDLER_SERVER | HANDLER_NEEDS_REG },
|
|
{ "me", "Send a CTCP action",
|
|
"<message>",
|
|
handle_command_me, HANDLER_SERVER | HANDLER_NEEDS_REG },
|
|
|
|
{ "join", "Join channels",
|
|
"[<channel>[,<channel>...]] [<key>[,<key>...]]",
|
|
handle_command_join, HANDLER_SERVER },
|
|
{ "part", "Leave channels",
|
|
"[<channel>[,<channel>...]] [<reason>]",
|
|
handle_command_part, HANDLER_SERVER },
|
|
{ "cycle", "Rejoin channels",
|
|
"[<channel>[,<channel>...]] [<reason>]",
|
|
handle_command_cycle, HANDLER_SERVER },
|
|
|
|
{ "op", "Give channel operator status",
|
|
"<nick>...",
|
|
handle_command_op, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "deop", "Remove channel operator status",
|
|
"<nick>...",
|
|
handle_command_deop, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "voice", "Give voice",
|
|
"<nick>...",
|
|
handle_command_voice, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "devoice", "Remove voice",
|
|
"<nick>...",
|
|
handle_command_devoice, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
|
|
{ "mode", "Change mode",
|
|
"[<channel>] [<mode>...]",
|
|
handle_command_mode, HANDLER_SERVER },
|
|
{ "topic", "Change topic",
|
|
"[<channel>] [<topic>]",
|
|
handle_command_topic, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "kick", "Kick user from channel",
|
|
"[<channel>] <user> [<reason>]",
|
|
handle_command_kick, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "kickban", "Kick and ban user from channel",
|
|
"[<channel>] <user> [<reason>]",
|
|
handle_command_kickban, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "ban", "Ban user from channel",
|
|
"[<channel>] [<mask>...]",
|
|
handle_command_ban, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "unban", "Unban user from channel",
|
|
"[<channel>] <mask>...",
|
|
handle_command_unban, HANDLER_SERVER | HANDLER_CHANNEL_FIRST },
|
|
{ "invite", "Invite user to channel",
|
|
"<user>... [<channel>]",
|
|
handle_command_invite, HANDLER_SERVER | HANDLER_CHANNEL_LAST },
|
|
|
|
{ "server", "Manage servers",
|
|
"list | add <name> | remove <name> | rename <old> <new>",
|
|
handle_command_server, 0 },
|
|
{ "connect", "Connect to the server",
|
|
"[<server>]",
|
|
handle_command_connect, 0 },
|
|
{ "disconnect", "Disconnect from the server",
|
|
"[<server> [<reason>]]",
|
|
handle_command_disconnect, 0 },
|
|
|
|
{ "list", "List channels and their topic",
|
|
"[<channel>[,<channel>...]] [<target>]",
|
|
handle_command_list, HANDLER_SERVER },
|
|
{ "names", "List users on channel",
|
|
"[<channel>[,<channel>...]]",
|
|
handle_command_names, HANDLER_SERVER },
|
|
{ "who", "List users",
|
|
"[<mask> [o]]",
|
|
handle_command_who, HANDLER_SERVER },
|
|
{ "whois", "Get user information",
|
|
"[<target>] <mask>",
|
|
handle_command_whois, HANDLER_SERVER },
|
|
{ "whowas", "Get user information",
|
|
"<user> [<count> [<target>]]",
|
|
handle_command_whowas, HANDLER_SERVER },
|
|
|
|
{ "motd", "Get the Message of The Day",
|
|
"[<target>]",
|
|
handle_command_motd, HANDLER_SERVER },
|
|
{ "oper", "Authenticate as an IRC operator",
|
|
"<name> <password>",
|
|
handle_command_oper, HANDLER_SERVER },
|
|
{ "kill", "Kick another user from the server",
|
|
"<user> <comment>",
|
|
handle_command_kill, HANDLER_SERVER },
|
|
{ "stats", "Query server statistics",
|
|
"[<query> [<target>]]",
|
|
handle_command_stats, HANDLER_SERVER },
|
|
{ "away", "Set away status",
|
|
"[<text>]",
|
|
handle_command_away, HANDLER_SERVER },
|
|
{ "nick", "Change current nick",
|
|
"<nickname>",
|
|
handle_command_nick, HANDLER_SERVER },
|
|
{ "quote", "Send a raw command to the server",
|
|
"<command>",
|
|
handle_command_quote, HANDLER_SERVER },
|
|
};
|
|
|
|
static bool
|
|
try_handle_command_help_option (struct app_context *ctx, const char *name)
|
|
{
|
|
struct config_item *item =
|
|
config_item_get (ctx->config.root, name, NULL);
|
|
if (!item)
|
|
return false;
|
|
|
|
struct config_schema *schema = item->schema;
|
|
if (!schema)
|
|
{
|
|
log_global_error (ctx, "#s: #s", "Option not recognized", name);
|
|
return true;
|
|
}
|
|
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Option \"#s\":", name);
|
|
log_global_indent (ctx, " Description: #s",
|
|
schema->comment ? schema->comment : "(none)");
|
|
log_global_indent (ctx, " Type: #s", config_item_type_name (schema->type));
|
|
log_global_indent (ctx, " Default: #s",
|
|
schema->default_ ? schema->default_ : "null");
|
|
|
|
struct str tmp = str_make ();
|
|
config_item_write (item, false, &tmp);
|
|
log_global_indent (ctx, " Current value: #s", tmp.str);
|
|
str_free (&tmp);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
show_command_list (struct app_context *ctx)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "Commands:");
|
|
|
|
int longest = 0;
|
|
for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
|
|
{
|
|
int len = strlen (g_command_handlers[i].name);
|
|
longest = MAX (longest, len);
|
|
}
|
|
for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
|
|
{
|
|
struct command_handler *handler = &g_command_handlers[i];
|
|
log_global_indent (ctx, " #&s", xstrdup_printf
|
|
("%-*s %s", longest, handler->name, handler->description));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
show_command_help (struct app_context *ctx, struct command_handler *handler)
|
|
{
|
|
log_global_indent (ctx, "");
|
|
log_global_indent (ctx, "/#s: #s", handler->name, handler->description);
|
|
log_global_indent (ctx, " Arguments: #s",
|
|
handler->usage ? handler->usage : "(none)");
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
handle_command_help (struct handler_args *a)
|
|
{
|
|
struct app_context *ctx = a->ctx;
|
|
if (!*a->arguments)
|
|
return show_command_list (ctx);
|
|
|
|
// TODO: we should probably also accept commands names with a leading slash
|
|
char *command = cut_word (&a->arguments);
|
|
for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
|
|
{
|
|
struct command_handler *handler = &g_command_handlers[i];
|
|
if (!strcasecmp_ascii (command, handler->name))
|
|
return show_command_help (ctx, handler);
|
|
}
|
|
|
|
if (try_handle_command_help_option (ctx, command))
|
|
return true;
|
|
|
|
if (str_map_find (get_aliases_config (ctx), command))
|
|
log_global_status (ctx, "/#s is an alias", command);
|
|
else
|
|
log_global_error (ctx, "#s: #s", "No such command or option", command);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
init_user_command_map (struct str_map *map)
|
|
{
|
|
*map = str_map_make (NULL);
|
|
map->key_xfrm = tolower_ascii_strxfrm;
|
|
|
|
for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
|
|
{
|
|
struct command_handler *handler = &g_command_handlers[i];
|
|
str_map_set (map, handler->name, handler);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
process_user_command (struct app_context *ctx, struct buffer *buffer,
|
|
const char *command_name, char *input)
|
|
{
|
|
static bool initialized = false;
|
|
static struct str_map map;
|
|
if (!initialized)
|
|
{
|
|
init_user_command_map (&map);
|
|
initialized = true;
|
|
}
|
|
|
|
if (try_handle_buffer_goto (ctx, command_name))
|
|
return true;
|
|
|
|
struct handler_args args =
|
|
{
|
|
.ctx = ctx,
|
|
.buffer = buffer,
|
|
.arguments = input,
|
|
};
|
|
|
|
struct command_handler *handler;
|
|
if (!(handler = str_map_find (&map, command_name)))
|
|
return false;
|
|
hard_assert (handler->flags == 0 || (handler->flags & HANDLER_SERVER));
|
|
|
|
if ((handler->flags & HANDLER_SERVER)
|
|
&& args.buffer->type == BUFFER_GLOBAL)
|
|
log_global_error (ctx, "/#s: #s",
|
|
command_name, "can't do this from a global buffer");
|
|
else if ((handler->flags & HANDLER_SERVER)
|
|
&& !irc_is_connected ((args.s = args.buffer->server)))
|
|
log_server_error (args.s, args.s->buffer, "Not connected");
|
|
else if ((handler->flags & HANDLER_NEEDS_REG)
|
|
&& args.s->state != IRC_REGISTERED)
|
|
log_server_error (args.s, args.s->buffer, "Not registered");
|
|
else if (((handler->flags & HANDLER_CHANNEL_FIRST)
|
|
&& !(args.channel_name =
|
|
try_get_channel (&args, maybe_cut_word)))
|
|
|| ((handler->flags & HANDLER_CHANNEL_LAST)
|
|
&& !(args.channel_name =
|
|
try_get_channel (&args, maybe_cut_word_from_end))))
|
|
log_server_error (args.s, args.buffer, "/#s: #s", command_name,
|
|
"no channel name given and this buffer is not a channel");
|
|
else if (!handler->handler (&args))
|
|
log_global_error (ctx,
|
|
"#s: /#s #s", "Usage", handler->name, handler->usage);
|
|
return true;
|
|
}
|
|
|
|
static const char *
|
|
expand_alias_escape (const char *p, const char *arguments, struct str *output)
|
|
{
|
|
struct strv words = strv_make ();
|
|
cstr_split (arguments, " ", true, &words);
|
|
|
|
// TODO: eventually also add support for argument ranges
|
|
if (*p >= '1' && *p <= '9')
|
|
{
|
|
size_t offset = *p - '1';
|
|
if (offset < words.len)
|
|
str_append (output, words.vector[offset]);
|
|
}
|
|
else if (*p == '*')
|
|
str_append (output, arguments);
|
|
else if (strchr ("$;", *p))
|
|
str_append_c (output, *p);
|
|
else
|
|
str_append_printf (output, "$%c", *p);
|
|
|
|
strv_free (&words);
|
|
return ++p;
|
|
}
|
|
|
|
static void
|
|
expand_alias_definition (const char *definition, const char *arguments,
|
|
struct strv *commands)
|
|
{
|
|
struct str expanded = str_make ();
|
|
bool escape = false;
|
|
for (const char *p = definition; *p; p++)
|
|
{
|
|
if (escape)
|
|
{
|
|
p = expand_alias_escape (p, arguments, &expanded) - 1;
|
|
escape = false;
|
|
}
|
|
else if (*p == ';')
|
|
{
|
|
strv_append_owned (commands, str_steal (&expanded));
|
|
expanded = str_make ();
|
|
}
|
|
else if (*p == '$' && p[1])
|
|
escape = true;
|
|
else
|
|
str_append_c (&expanded, *p);
|
|
}
|
|
strv_append_owned (commands, str_steal (&expanded));
|
|
}
|
|
|
|
static bool
|
|
expand_alias (struct app_context *ctx,
|
|
const char *alias_name, char *input, struct strv *commands)
|
|
{
|
|
struct config_item *entry =
|
|
str_map_find (get_aliases_config (ctx), alias_name);
|
|
if (!entry)
|
|
return false;
|
|
|
|
if (!config_item_type_is_string (entry->type))
|
|
{
|
|
log_global_error (ctx, "Error executing `/#s': #s",
|
|
alias_name, "alias definition is not a string");
|
|
return false;
|
|
}
|
|
|
|
expand_alias_definition (entry->value.string.str, input, commands);
|
|
return true;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
send_message_to_target (struct server *s,
|
|
const char *target, char *message, struct buffer *buffer)
|
|
{
|
|
if (!irc_is_connected (s))
|
|
log_server_error (s, buffer, "Not connected");
|
|
else
|
|
SEND_AUTOSPLIT_PRIVMSG (s, target, message);
|
|
}
|
|
|
|
static void
|
|
send_message_to_buffer (struct app_context *ctx, struct buffer *buffer,
|
|
char *message)
|
|
{
|
|
hard_assert (buffer != NULL);
|
|
|
|
switch (buffer->type)
|
|
{
|
|
case BUFFER_CHANNEL:
|
|
send_message_to_target (buffer->server,
|
|
buffer->channel->name, message, buffer);
|
|
break;
|
|
case BUFFER_PM:
|
|
send_message_to_target (buffer->server,
|
|
buffer->user->nickname, message, buffer);
|
|
break;
|
|
default:
|
|
log_full (ctx, NULL, buffer, BUFFER_LINE_ERROR,
|
|
"This buffer is not a channel");
|
|
}
|
|
}
|
|
|
|
static bool
|
|
process_alias (struct app_context *ctx, struct buffer *buffer,
|
|
struct strv *commands, int level)
|
|
{
|
|
for (size_t i = 0; i < commands->len; i++)
|
|
log_global_debug (ctx, "Alias expanded to: ###d: \"#s\"",
|
|
(int) i, commands->vector[i]);
|
|
for (size_t i = 0; i < commands->len; i++)
|
|
if (!process_input_utf8 (ctx, buffer, commands->vector[i], ++level))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
process_input_utf8_posthook (struct app_context *ctx, struct buffer *buffer,
|
|
char *input, int alias_level)
|
|
{
|
|
if (*input != '/' || *++input == '/')
|
|
{
|
|
send_message_to_buffer (ctx, buffer, input);
|
|
return true;
|
|
}
|
|
|
|
char *name = cut_word (&input);
|
|
if (process_user_command (ctx, buffer, name, input))
|
|
return true;
|
|
|
|
struct strv commands = strv_make ();
|
|
bool result = false;
|
|
if (!expand_alias (ctx, name, input, &commands))
|
|
log_global_error (ctx, "#s: /#s", "No such command or alias", name);
|
|
else if (alias_level != 0)
|
|
log_global_error (ctx, "#s: /#s", "Aliases can't nest", name);
|
|
else
|
|
result = process_alias (ctx, buffer, &commands, alias_level);
|
|
|
|
strv_free (&commands);
|
|
return result;
|
|
}
|
|
|
|
static char *
|
|
process_input_hooks (struct app_context *ctx, struct buffer *buffer,
|
|
char *input)
|
|
{
|
|
uint64_t hash = siphash_wrapper (input, strlen (input));
|
|
LIST_FOR_EACH (struct hook, iter, ctx->input_hooks)
|
|
{
|
|
struct input_hook *hook = (struct input_hook *) iter;
|
|
if (!(input = hook->filter (hook, buffer, input)))
|
|
{
|
|
log_global_debug (ctx, "Input thrown away by hook");
|
|
return NULL;
|
|
}
|
|
|
|
uint64_t new_hash = siphash_wrapper (input, strlen (input));
|
|
if (new_hash != hash)
|
|
log_global_debug (ctx, "Input transformed to \"#s\"#r", input);
|
|
hash = new_hash;
|
|
}
|
|
return input;
|
|
}
|
|
|
|
static bool
|
|
process_input_utf8 (struct app_context *ctx, struct buffer *buffer,
|
|
const char *input, int alias_level)
|
|
{
|
|
// Note that this also gets called on expanded aliases,
|
|
// which might or might not be desirable (we can forward "alias_level")
|
|
char *processed = process_input_hooks (ctx, buffer, xstrdup (input));
|
|
bool result = !processed
|
|
|| process_input_utf8_posthook (ctx, buffer, processed, alias_level);
|
|
free (processed);
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
process_input (struct app_context *ctx, char *user_input)
|
|
{
|
|
char *input;
|
|
if (!(input = iconv_xstrdup (ctx->term_to_utf8, user_input, -1, NULL)))
|
|
print_error ("character conversion failed for: %s", "user input");
|
|
else
|
|
{
|
|
struct strv lines = strv_make ();
|
|
|
|
// XXX: this interprets commands in pasted text
|
|
cstr_split (input, "\r\n", false, &lines);
|
|
for (size_t i = 0; i < lines.len; i++)
|
|
(void) process_input_utf8 (ctx,
|
|
ctx->current_buffer, lines.vector[i], 0);
|
|
|
|
strv_free (&lines);
|
|
}
|
|
free (input);
|
|
}
|
|
|
|
// --- Word completion ---------------------------------------------------------
|
|
|
|
// The amount of crap that goes into this is truly insane.
|
|
// It's mostly because of Editline's total ignorance of this task.
|
|
|
|
static void
|
|
completion_init (struct completion *self)
|
|
{
|
|
memset (self, 0, sizeof *self);
|
|
}
|
|
|
|
static void
|
|
completion_free (struct completion *self)
|
|
{
|
|
free (self->line);
|
|
free (self->words);
|
|
}
|
|
|
|
static void
|
|
completion_add_word (struct completion *self, size_t start, size_t end)
|
|
{
|
|
if (!self->words)
|
|
self->words = xcalloc ((self->words_alloc = 4), sizeof *self->words);
|
|
if (self->words_len == self->words_alloc)
|
|
self->words = xreallocarray (self->words,
|
|
(self->words_alloc <<= 1), sizeof *self->words);
|
|
self->words[self->words_len++] = (struct completion_word) { start, end };
|
|
}
|
|
|
|
static void
|
|
completion_parse (struct completion *self, const char *line, size_t len)
|
|
{
|
|
self->line = xstrndup (line, len);
|
|
|
|
// The first and the last word may be empty
|
|
const char *s = self->line;
|
|
while (true)
|
|
{
|
|
const char *start = s;
|
|
size_t word_len = strcspn (s, WORD_BREAKING_CHARS);
|
|
const char *end = start + word_len;
|
|
s = end + strspn (end, WORD_BREAKING_CHARS);
|
|
|
|
completion_add_word (self, start - self->line, end - self->line);
|
|
if (s == end)
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
completion_locate (struct completion *self, size_t offset)
|
|
{
|
|
size_t i = 0;
|
|
for (; i < self->words_len; i++)
|
|
if (self->words[i].start > offset)
|
|
break;
|
|
self->location = i - 1;
|
|
}
|
|
|
|
static bool
|
|
completion_matches (struct completion *self, int word, const char *pattern)
|
|
{
|
|
hard_assert (word >= 0 && word < (int) self->words_len);
|
|
char *text = xstrndup (self->line + self->words[word].start,
|
|
self->words[word].end - self->words[word].start);
|
|
bool result = !fnmatch (pattern, text, 0);
|
|
free (text);
|
|
return result;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
// XXX: this isn't completely right because Unicode, but let's keep it simple.
|
|
// At worst it will stop before a combining mark, or fail to compare
|
|
// non-ASCII identifiers case-insensitively.
|
|
|
|
static size_t
|
|
utf8_common_prefix (const char **vector, size_t len)
|
|
{
|
|
size_t prefix = 0;
|
|
if (!vector || !len)
|
|
return 0;
|
|
|
|
struct utf8_iter a[len];
|
|
for (size_t i = 0; i < len; i++)
|
|
a[i] = utf8_iter_make (vector[i]);
|
|
|
|
size_t ch_len;
|
|
int32_t ch;
|
|
while ((ch = utf8_iter_next (&a[0], &ch_len)) != -1)
|
|
{
|
|
for (size_t i = 1; i < len; i++)
|
|
{
|
|
int32_t other = utf8_iter_next (&a[i], NULL);
|
|
if (ch == other)
|
|
continue;
|
|
// Not bothering with lowercasing non-ASCII
|
|
if (ch >= 0x80 || other >= 0x80
|
|
|| tolower_ascii (ch) != tolower_ascii (other))
|
|
return prefix;
|
|
}
|
|
prefix += ch_len;
|
|
}
|
|
return prefix;
|
|
}
|
|
|
|
static void
|
|
complete_command (struct app_context *ctx, struct completion *data,
|
|
const char *word, struct strv *output)
|
|
{
|
|
(void) data;
|
|
|
|
const char *prefix = "";
|
|
if (*word == '/')
|
|
{
|
|
word++;
|
|
prefix = "/";
|
|
}
|
|
|
|
size_t word_len = strlen (word);
|
|
for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
|
|
{
|
|
struct command_handler *handler = &g_command_handlers[i];
|
|
if (!strncasecmp_ascii (word, handler->name, word_len))
|
|
strv_append_owned (output,
|
|
xstrdup_printf ("%s%s", prefix, handler->name));
|
|
}
|
|
|
|
struct str_map_iter iter = str_map_iter_make (get_aliases_config (ctx));
|
|
struct config_item *alias;
|
|
while ((alias = str_map_iter_next (&iter)))
|
|
{
|
|
if (!strncasecmp_ascii (word, iter.link->key, word_len))
|
|
strv_append_owned (output,
|
|
xstrdup_printf ("%s%s", prefix, iter.link->key));
|
|
}
|
|
}
|
|
|
|
static void
|
|
complete_option (struct app_context *ctx, struct completion *data,
|
|
const char *word, struct strv *output)
|
|
{
|
|
(void) data;
|
|
|
|
struct strv options = strv_make ();
|
|
config_dump (ctx->config.root, &options);
|
|
strv_sort (&options);
|
|
|
|
// Wildcard expansion is an interesting side-effect
|
|
char *mask = xstrdup_printf ("%s*", word);
|
|
for (size_t i = 0; i < options.len; i++)
|
|
{
|
|
char *key = cstr_cut_until (options.vector[i], " ");
|
|
if (!fnmatch (mask, key, 0))
|
|
strv_append_owned (output, key);
|
|
else
|
|
free (key);
|
|
}
|
|
free (mask);
|
|
strv_free (&options);
|
|
}
|
|
|
|
static void
|
|
complete_topic (struct app_context *ctx, struct completion *data,
|
|
const char *word, struct strv *output)
|
|
{
|
|
(void) data;
|
|
|
|
// TODO: make it work in other server-related buffers, too, i.e. when we're
|
|
// completing the third word and the second word is a known channel name
|
|
struct buffer *buffer = ctx->current_buffer;
|
|
if (buffer->type != BUFFER_CHANNEL)
|
|
return;
|
|
|
|
const char *topic = buffer->channel->topic;
|
|
if (topic && !strncasecmp_ascii (word, topic, strlen (word)))
|
|
{
|
|
// We must prepend the channel name if the topic itself starts
|
|
// with something that could be regarded as a channel name
|
|
strv_append_owned (output, irc_is_channel (buffer->server, topic)
|
|
? xstrdup_printf ("%s %s", buffer->channel->name, topic)
|
|
: xstrdup (topic));
|
|
}
|
|
}
|
|
|
|
static void
|
|
complete_nicknames (struct app_context *ctx, struct completion *data,
|
|
const char *word, struct strv *output)
|
|
{
|
|
struct buffer *buffer = ctx->current_buffer;
|
|
if (buffer->type == BUFFER_SERVER)
|
|
{
|
|
struct user *self_user = buffer->server->irc_user;
|
|
if (self_user)
|
|
strv_append (output, self_user->nickname);
|
|
}
|
|
if (buffer->type != BUFFER_CHANNEL)
|
|
return;
|
|
|
|
size_t word_len = strlen (word);
|
|
LIST_FOR_EACH (struct channel_user, iter, buffer->channel->users)
|
|
{
|
|
const char *nickname = iter->user->nickname;
|
|
if (irc_server_strncmp (buffer->server, word, nickname, word_len))
|
|
continue;
|
|
strv_append_owned (output, data->location == 0
|
|
? xstrdup_printf ("%s:", nickname)
|
|
: xstrdup (nickname));
|
|
}
|
|
}
|
|
|
|
static char **
|
|
complete_word (struct app_context *ctx, struct completion *data,
|
|
const char *word)
|
|
{
|
|
// First figure out what exactly we need to complete
|
|
bool try_commands = false;
|
|
bool try_options = false;
|
|
bool try_topic = false;
|
|
bool try_nicknames = false;
|
|
|
|
if (data->location == 0 && completion_matches (data, 0, "/*"))
|
|
try_commands = true;
|
|
else if (data->location == 1 && completion_matches (data, 0, "/set"))
|
|
try_options = true;
|
|
else if (data->location == 1 && completion_matches (data, 0, "/help"))
|
|
try_commands = try_options = true;
|
|
else if (data->location == 1 && completion_matches (data, 0, "/topic"))
|
|
try_topic = try_nicknames = true;
|
|
else
|
|
try_nicknames = true;
|
|
|
|
struct strv words = strv_make ();
|
|
|
|
// Add placeholder
|
|
strv_append_owned (&words, NULL);
|
|
|
|
if (try_commands) complete_command (ctx, data, word, &words);
|
|
if (try_options) complete_option (ctx, data, word, &words);
|
|
if (try_topic) complete_topic (ctx, data, word, &words);
|
|
if (try_nicknames) complete_nicknames (ctx, data, word, &words);
|
|
|
|
LIST_FOR_EACH (struct hook, iter, ctx->completion_hooks)
|
|
{
|
|
struct completion_hook *hook = (struct completion_hook *) iter;
|
|
hook->complete (hook, data, word, &words);
|
|
}
|
|
|
|
if (words.len == 1)
|
|
{
|
|
// Nothing matched
|
|
strv_free (&words);
|
|
return NULL;
|
|
}
|
|
|
|
if (words.len == 2)
|
|
{
|
|
words.vector[0] = words.vector[1];
|
|
words.vector[1] = NULL;
|
|
}
|
|
else
|
|
{
|
|
size_t prefix = utf8_common_prefix
|
|
((const char **) words.vector + 1, words.len - 1);
|
|
if (!prefix)
|
|
words.vector[0] = xstrdup (word);
|
|
else
|
|
words.vector[0] = xstrndup (words.vector[1], prefix);
|
|
}
|
|
return words.vector;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
/// A special wrapper for iconv_xstrdup() that also fixes indexes into the
|
|
/// original string to point to the right location in the output.
|
|
/// Thanks, Readline! Without you I would have never needed to deal with this.
|
|
static char *
|
|
locale_to_utf8 (struct app_context *ctx, const char *locale,
|
|
int *indexes[], size_t n_indexes)
|
|
{
|
|
mbstate_t state;
|
|
memset (&state, 0, sizeof state);
|
|
|
|
size_t remaining = strlen (locale) + 1;
|
|
const char *p = locale;
|
|
|
|
// Reset the shift state, FWIW
|
|
(void) iconv (ctx->term_to_utf8, NULL, NULL, NULL, NULL);
|
|
|
|
bool fixed[n_indexes];
|
|
memset (fixed, 0, sizeof fixed);
|
|
|
|
struct str utf8 = str_make ();
|
|
while (true)
|
|
{
|
|
size_t len = mbrlen (p, remaining, &state);
|
|
|
|
// Incomplete multibyte character or illegal sequence (probably)
|
|
if (len == (size_t) -2
|
|
|| len == (size_t) -1)
|
|
{
|
|
str_free (&utf8);
|
|
return NULL;
|
|
}
|
|
|
|
// Convert indexes into the multibyte string to UTF-8
|
|
for (size_t i = 0; i < n_indexes; i++)
|
|
if (!fixed[i] && *indexes[i] <= p - locale)
|
|
{
|
|
*indexes[i] = utf8.len;
|
|
fixed[i] = true;
|
|
}
|
|
|
|
// End of string
|
|
if (!len)
|
|
break;
|
|
|
|
// EINVAL (incomplete sequence) should never happen and
|
|
// EILSEQ neither because we've already checked for that with mbrlen().
|
|
// E2BIG is what iconv_xstrdup solves. This must succeed.
|
|
size_t ch_len;
|
|
char *ch = iconv_xstrdup (ctx->term_to_utf8, (char *) p, len, &ch_len);
|
|
hard_assert (ch != NULL);
|
|
str_append_data (&utf8, ch, ch_len);
|
|
free (ch);
|
|
|
|
p += len;
|
|
remaining -= len;
|
|
}
|
|
return str_steal (&utf8);
|
|
}
|
|
|
|
static void
|
|
utf8_vector_to_locale (struct app_context *ctx, char **vector)
|
|
{
|
|
for (; *vector; vector++)
|
|
{
|
|
char *converted = iconv_xstrdup
|
|
(ctx->term_from_utf8, *vector, -1, NULL);
|
|
if (!soft_assert (converted))
|
|
converted = xstrdup ("");
|
|
|
|
cstr_set (vector, converted);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
/// Takes a line in locale-specific encoding and position of a word to complete,
|
|
/// returns a vector of matches in locale-specific encoding.
|
|
static char **
|
|
make_completions (struct app_context *ctx, char *line, int start, int end)
|
|
{
|
|
int *fixes[] = { &start, &end };
|
|
char *line_utf8 = locale_to_utf8 (ctx, line, fixes, N_ELEMENTS (fixes));
|
|
if (!line_utf8)
|
|
return NULL;
|
|
|
|
hard_assert (start >= 0 && end >= 0 && start <= end);
|
|
|
|
struct completion c;
|
|
completion_init (&c);
|
|
completion_parse (&c, line, strlen (line));
|
|
completion_locate (&c, start);
|
|
char *word = xstrndup (line + start, end - start);
|
|
char **completions = complete_word (ctx, &c, word);
|
|
free (word);
|
|
completion_free (&c);
|
|
|
|
if (completions)
|
|
utf8_vector_to_locale (ctx, completions);
|
|
|
|
free (line_utf8);
|
|
return completions;
|
|
}
|
|
|
|
// --- Common code for user actions --------------------------------------------
|
|
|
|
static void
|
|
toggle_bracketed_paste (bool enable)
|
|
{
|
|
fprintf (stdout, "\x1b[?2004%c", "lh"[enable]);
|
|
fflush (stdout);
|
|
}
|
|
|
|
static void
|
|
suspend_terminal (struct app_context *ctx)
|
|
{
|
|
// Terminal can get suspended by both backlog helper and SIGTSTP handling
|
|
if (ctx->terminal_suspended++ > 0)
|
|
return;
|
|
|
|
toggle_bracketed_paste (false);
|
|
CALL (ctx->input, hide);
|
|
poller_fd_reset (&ctx->tty_event);
|
|
|
|
CALL_ (ctx->input, prepare, false);
|
|
}
|
|
|
|
static void
|
|
resume_terminal (struct app_context *ctx)
|
|
{
|
|
if (--ctx->terminal_suspended > 0)
|
|
return;
|
|
|
|
update_screen_size ();
|
|
CALL_ (ctx->input, prepare, true);
|
|
CALL (ctx->input, on_tty_resized);
|
|
|
|
toggle_bracketed_paste (true);
|
|
// In theory we could just print all unseen messages but this is safer
|
|
buffer_print_backlog (ctx, ctx->current_buffer);
|
|
// Now it's safe to process any user input
|
|
poller_fd_set (&ctx->tty_event, POLLIN);
|
|
CALL (ctx->input, show);
|
|
}
|
|
|
|
static pid_t
|
|
spawn_helper_child (struct app_context *ctx)
|
|
{
|
|
suspend_terminal (ctx);
|
|
pid_t child = fork ();
|
|
switch (child)
|
|
{
|
|
case -1:
|
|
{
|
|
int saved_errno = errno;
|
|
resume_terminal (ctx);
|
|
errno = saved_errno;
|
|
break;
|
|
}
|
|
case 0:
|
|
// Put the child in a new foreground process group
|
|
hard_assert (setpgid (0, 0) != -1);
|
|
hard_assert (tcsetpgrp (STDOUT_FILENO, getpgid (0)) != -1);
|
|
break;
|
|
default:
|
|
// Make sure of it in the parent as well before continuing
|
|
(void) setpgid (child, child);
|
|
}
|
|
return child;
|
|
}
|
|
|
|
static void
|
|
redraw_screen (struct app_context *ctx)
|
|
{
|
|
// If by some circumstance we had the wrong idea
|
|
CALL (ctx->input, on_tty_resized);
|
|
update_screen_size ();
|
|
|
|
CALL (ctx->input, hide);
|
|
buffer_print_backlog (ctx, ctx->current_buffer);
|
|
CALL (ctx->input, show);
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
dump_input_to_file (struct app_context *ctx, char *template, struct error **e)
|
|
{
|
|
mode_t mask = umask (S_IXUSR | S_IRWXG | S_IRWXO);
|
|
int fd = mkstemp (template);
|
|
(void) umask (mask);
|
|
|
|
if (fd < 0)
|
|
return error_set (e, "%s", strerror (errno));
|
|
|
|
char *input = CALL (ctx->input, get_line);
|
|
bool success = xwrite (fd, input, strlen (input), e);
|
|
free (input);
|
|
|
|
if (!success)
|
|
(void) unlink (template);
|
|
|
|
xclose (fd);
|
|
return success;
|
|
}
|
|
|
|
static char *
|
|
try_dump_input_to_file (struct app_context *ctx)
|
|
{
|
|
char *template = resolve_filename
|
|
("input.XXXXXX", resolve_relative_runtime_template);
|
|
|
|
struct error *e = NULL;
|
|
if (dump_input_to_file (ctx, template, &e))
|
|
return template;
|
|
|
|
log_global_error (ctx, "#s: #s",
|
|
"Failed to create a temporary file for editing", e->message);
|
|
error_free (e);
|
|
free (template);
|
|
return NULL;
|
|
}
|
|
|
|
static bool
|
|
on_edit_input (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
struct app_context *ctx = user_data;
|
|
|
|
char *filename;
|
|
if (!(filename = try_dump_input_to_file (ctx)))
|
|
return false;
|
|
|
|
const char *command;
|
|
if (!(command = getenv ("VISUAL"))
|
|
&& !(command = getenv ("EDITOR")))
|
|
command = "vi";
|
|
|
|
hard_assert (!ctx->running_editor);
|
|
switch (spawn_helper_child (ctx))
|
|
{
|
|
case 0:
|
|
execlp (command, command, filename, NULL);
|
|
print_error ("%s: %s",
|
|
"Failed to launch editor", strerror (errno));
|
|
_exit (EXIT_FAILURE);
|
|
case -1:
|
|
log_global_error (ctx, "#s: #l",
|
|
"Failed to launch editor", strerror (errno));
|
|
free (filename);
|
|
break;
|
|
default:
|
|
ctx->running_editor = true;
|
|
ctx->editor_filename = filename;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
input_editor_process (struct app_context *ctx)
|
|
{
|
|
struct str input = str_make ();
|
|
struct error *e = NULL;
|
|
if (!read_file (ctx->editor_filename, &input, &e))
|
|
{
|
|
log_global_error (ctx, "#s: #s", "Input editing failed", e->message);
|
|
error_free (e);
|
|
}
|
|
else
|
|
CALL (ctx->input, clear_line);
|
|
|
|
if (!CALL_ (ctx->input, insert, input.str))
|
|
log_global_error (ctx, "#s: #s", "Input editing failed",
|
|
"could not re-insert the modified text");
|
|
|
|
str_free (&input);
|
|
}
|
|
|
|
static void
|
|
input_editor_cleanup (struct app_context *ctx)
|
|
{
|
|
if (unlink (ctx->editor_filename))
|
|
log_global_error (ctx, "Could not unlink `#s': #l",
|
|
ctx->editor_filename, strerror (errno));
|
|
|
|
cstr_set (&ctx->editor_filename, NULL);
|
|
ctx->running_editor = false;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
launch_backlog_helper (struct app_context *ctx, int backlog_fd)
|
|
{
|
|
hard_assert (!ctx->running_backlog_helper);
|
|
switch (spawn_helper_child (ctx))
|
|
{
|
|
case 0:
|
|
dup2 (backlog_fd, STDIN_FILENO);
|
|
execl ("/bin/sh", "/bin/sh", "-c", get_config_string
|
|
(ctx->config.root, "behaviour.backlog_helper"), NULL);
|
|
print_error ("%s: %s",
|
|
"Failed to launch backlog helper", strerror (errno));
|
|
_exit (EXIT_FAILURE);
|
|
case -1:
|
|
log_global_error (ctx, "#s: #l",
|
|
"Failed to launch backlog helper", strerror (errno));
|
|
break;
|
|
default:
|
|
ctx->running_backlog_helper = true;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
display_backlog (struct app_context *ctx, int flush_opts)
|
|
{
|
|
FILE *backlog = tmpfile ();
|
|
if (!backlog)
|
|
{
|
|
log_global_error (ctx, "#s: #l",
|
|
"Failed to create a temporary file", strerror (errno));
|
|
return false;
|
|
}
|
|
|
|
if (!get_config_boolean (ctx->config.root,
|
|
"behaviour.backlog_helper_strip_formatting"))
|
|
flush_opts |= FLUSH_OPT_RAW;
|
|
|
|
struct buffer *buffer = ctx->current_buffer;
|
|
int until_marker =
|
|
(int) buffer->lines_count - (int) buffer->new_messages_count;
|
|
for (struct buffer_line *line = buffer->lines; line; line = line->next)
|
|
{
|
|
if (until_marker-- == 0
|
|
&& buffer->new_messages_count != buffer->lines_count)
|
|
buffer_print_read_marker (ctx, backlog, flush_opts);
|
|
if (buffer_line_will_show_up (buffer, line))
|
|
buffer_line_write_to_backlog (ctx, line, backlog, flush_opts);
|
|
}
|
|
|
|
// So that it is obvious if the last line in the buffer is not from today
|
|
buffer_update_time (ctx, time (NULL), backlog, flush_opts);
|
|
|
|
rewind (backlog);
|
|
set_cloexec (fileno (backlog));
|
|
launch_backlog_helper (ctx, fileno (backlog));
|
|
fclose (backlog);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_display_backlog (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
return display_backlog (user_data, 0);
|
|
}
|
|
|
|
static bool
|
|
on_display_backlog_nowrap (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
return display_backlog (user_data, FLUSH_OPT_NOWRAP);
|
|
}
|
|
|
|
static bool
|
|
on_display_full_log (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
struct app_context *ctx = user_data;
|
|
|
|
char *path = buffer_get_log_path (ctx->current_buffer);
|
|
FILE *full_log = fopen (path, "rb");
|
|
free (path);
|
|
|
|
if (!full_log)
|
|
{
|
|
log_global_error (ctx, "Failed to open log file for #s: #l",
|
|
ctx->current_buffer->name, strerror (errno));
|
|
return false;
|
|
}
|
|
|
|
if (ctx->current_buffer->log_file)
|
|
// The regular flush will log any error eventually
|
|
(void) fflush (ctx->current_buffer->log_file);
|
|
|
|
set_cloexec (fileno (full_log));
|
|
launch_backlog_helper (ctx, fileno (full_log));
|
|
fclose (full_log);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_toggle_unimportant (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
struct app_context *ctx = user_data;
|
|
ctx->current_buffer->hide_unimportant ^= true;
|
|
buffer_print_backlog (ctx, ctx->current_buffer);
|
|
return true;
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static bool
|
|
on_goto_buffer (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
struct app_context *ctx = user_data;
|
|
|
|
int n = key - '0';
|
|
if (n < 0 || n > 9)
|
|
return false;
|
|
|
|
// There's no buffer zero
|
|
if (n == 0)
|
|
n = 10;
|
|
|
|
if (!ctx->last_buffer || buffer_get_index (ctx, ctx->current_buffer) != n)
|
|
return buffer_goto (ctx, n);
|
|
|
|
// Fast switching between two buffers
|
|
buffer_activate (ctx, ctx->last_buffer);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_previous_buffer (int count, int key, void *user_data)
|
|
{
|
|
(void) key;
|
|
buffer_activate (user_data, buffer_previous (user_data, count));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_next_buffer (int count, int key, void *user_data)
|
|
{
|
|
(void) key;
|
|
buffer_activate (user_data, buffer_next (user_data, count));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_switch_buffer (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
struct app_context *ctx = user_data;
|
|
|
|
if (!ctx->last_buffer)
|
|
return false;
|
|
buffer_activate (ctx, ctx->last_buffer);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_goto_highlight (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
struct app_context *ctx = user_data;
|
|
struct buffer *iter = ctx->current_buffer;;
|
|
do
|
|
{
|
|
if (!(iter = iter->next))
|
|
iter = ctx->buffers;
|
|
if (iter == ctx->current_buffer)
|
|
return false;
|
|
}
|
|
while (!iter->highlighted);
|
|
buffer_activate (ctx, iter);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_goto_activity (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
struct app_context *ctx = user_data;
|
|
struct buffer *iter = ctx->current_buffer;
|
|
do
|
|
{
|
|
if (!(iter = iter->next))
|
|
iter = ctx->buffers;
|
|
if (iter == ctx->current_buffer)
|
|
return false;
|
|
}
|
|
while (iter->new_messages_count == iter->new_unimportant_count);
|
|
buffer_activate (ctx, iter);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_move_buffer_left (int count, int key, void *user_data)
|
|
{
|
|
(void) key;
|
|
|
|
struct app_context *ctx = user_data;
|
|
int total = buffer_count (ctx);
|
|
int n = buffer_get_index (ctx, ctx->current_buffer) - count;
|
|
buffer_move (ctx, ctx->current_buffer, n <= 0
|
|
? (total + n % total)
|
|
: ((n - 1) % total + 1));
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_move_buffer_right (int count, int key, void *user_data)
|
|
{
|
|
return on_move_buffer_left (-count, key, user_data);
|
|
}
|
|
|
|
static bool
|
|
on_redraw_screen (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
redraw_screen (user_data);
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_insert_attribute (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
struct app_context *ctx = user_data;
|
|
ctx->awaiting_mirc_escape = true;
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
on_start_paste_mode (int count, int key, void *user_data)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
struct app_context *ctx = user_data;
|
|
ctx->in_bracketed_paste = true;
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
input_add_functions (void *user_data)
|
|
{
|
|
struct app_context *ctx = user_data;
|
|
#define XX(...) CALL_ (ctx->input, register_fn, __VA_ARGS__, ctx);
|
|
XX ("previous-buffer", "Previous buffer", on_previous_buffer)
|
|
XX ("next-buffer", "Next buffer", on_next_buffer)
|
|
XX ("goto-buffer", "Go to buffer", on_goto_buffer)
|
|
XX ("switch-buffer", "Switch buffer", on_switch_buffer)
|
|
XX ("goto-highlight", "Go to highlight", on_goto_highlight)
|
|
XX ("goto-activity", "Go to activity", on_goto_activity)
|
|
XX ("move-buffer-left", "Move buffer left", on_move_buffer_left)
|
|
XX ("move-buffer-right", "Move buffer right", on_move_buffer_right)
|
|
XX ("display-backlog", "Show backlog", on_display_backlog)
|
|
XX ("display-backlog-nw", "Non-wrapped log", on_display_backlog_nowrap)
|
|
XX ("display-full-log", "Show full log", on_display_full_log)
|
|
XX ("toggle-unimportant", "Toggle junk msgs", on_toggle_unimportant)
|
|
XX ("edit-input", "Edit input", on_edit_input)
|
|
XX ("redraw-screen", "Redraw screen", on_redraw_screen)
|
|
XX ("insert-attribute", "mIRC formatting", on_insert_attribute)
|
|
XX ("start-paste-mode", "Bracketed paste", on_start_paste_mode)
|
|
#undef XX
|
|
}
|
|
|
|
static void
|
|
bind_common_keys (struct app_context *ctx)
|
|
{
|
|
struct input *self = ctx->input;
|
|
CALL_ (self, bind_control, 'p', "previous-buffer");
|
|
CALL_ (self, bind_control, 'n', "next-buffer");
|
|
|
|
// Redefine M-0 through M-9 to switch buffers
|
|
for (int i = 0; i <= 9; i++)
|
|
CALL_ (self, bind_meta, '0' + i, "goto-buffer");
|
|
|
|
CALL_ (self, bind_meta, '\t', "switch-buffer");
|
|
CALL_ (self, bind_meta, '!', "goto-highlight");
|
|
CALL_ (self, bind_meta, 'a', "goto-activity");
|
|
CALL_ (self, bind_meta, 'm', "insert-attribute");
|
|
CALL_ (self, bind_meta, 'h', "display-full-log");
|
|
CALL_ (self, bind_meta, 'H', "toggle-unimportant");
|
|
CALL_ (self, bind_meta, 'e', "edit-input");
|
|
|
|
if (key_f5) CALL_ (self, bind, key_f5, "previous-buffer");
|
|
if (key_f6) CALL_ (self, bind, key_f6, "next-buffer");
|
|
if (key_ppage) CALL_ (self, bind, key_ppage, "display-backlog");
|
|
|
|
if (clear_screen)
|
|
CALL_ (self, bind_control, 'l', "redraw-screen");
|
|
|
|
CALL_ (self, bind, "\x1b[200~", "start-paste-mode");
|
|
}
|
|
|
|
// --- GNU Readline user actions -----------------------------------------------
|
|
|
|
#ifdef HAVE_READLINE
|
|
|
|
static int
|
|
on_readline_return (int count, int key)
|
|
{
|
|
(void) count;
|
|
(void) key;
|
|
|
|
// Let readline pass the line to our input handler
|
|
rl_done = 1;
|
|
|
|
struct app_context *ctx = g_ctx;
|
|
struct input_rl *self = (struct input_rl *) ctx->input;
|
|
|
|
// Hide the line, don't redisplay it
|
|
CALL (ctx->input, hide);
|
|
input_rl__restore (self);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
on_readline_input (char *line)
|
|
{
|
|
struct app_context *ctx = g_ctx;
|
|
struct input_rl *self = (struct input_rl *) ctx->input;
|
|
|
|
if (line)
|
|
{
|
|
if (*line)
|
|
add_history (line);
|
|
|
|
// readline always erases the input line after returning from here,
|
|
// but we don't want that to happen if the command to be executed
|
|
// would switch the buffer (we'd keep the already executed command in
|
|
// the old buffer and delete any input restored from the new buffer)
|
|
strv_append_owned (&ctx->pending_input, line);
|
|
poller_idle_set (&ctx->input_event);
|
|
}
|
|
else
|
|
{
|
|
// Prevent readline from showing the prompt twice for w/e reason
|
|
CALL (ctx->input, hide);
|
|
input_rl__restore (self);
|
|
|
|
CALL (ctx->input, ding);
|
|
}
|
|
|
|
if (self->active)
|
|
// Readline automatically redisplays it
|
|
self->prompt_shown = 1;
|
|
}
|
|
|
|
static char **
|
|
app_readline_completion (const char *text, int start, int end)
|
|
{
|
|
// We will reconstruct that ourselves
|
|
(void) text;
|
|
|
|
// Don't iterate over filenames and stuff
|
|
rl_attempted_completion_over = true;
|
|
|
|
return make_completions (g_ctx, rl_line_buffer, start, end);
|
|
}
|
|
|
|
static int
|
|
app_readline_init (void)
|
|
{
|
|
struct app_context *ctx = g_ctx;
|
|
struct input *self = ctx->input;
|
|
|
|
// XXX: maybe use rl_make_bare_keymap() and start from there;
|
|
// our dear user could potentionally rig things up in a way that might
|
|
// result in some funny unspecified behaviour
|
|
|
|
// For vi mode, enabling "show-mode-in-prompt" is recommended as there is
|
|
// no easy way to indicate mode changes otherwise.
|
|
|
|
rl_add_defun ("send-line", on_readline_return, -1);
|
|
bind_common_keys (ctx);
|
|
|
|
// Move native history commands
|
|
CALL_ (self, bind_meta, 'p', "previous-history");
|
|
CALL_ (self, bind_meta, 'n', "next-history");
|
|
|
|
// We need to hide the prompt and input first
|
|
rl_bind_key (RETURN, rl_named_function ("send-line"));
|
|
CALL_ (self, bind_control, 'j', "send-line");
|
|
|
|
rl_variable_bind ("completion-ignore-case", "on");
|
|
rl_bind_key (TAB, rl_named_function ("menu-complete"));
|
|
if (key_btab)
|
|
CALL_ (self, bind, key_btab, "menu-complete-backward");
|
|
return 0;
|
|
}
|
|
|
|
#endif // HAVE_READLINE
|
|
|
|
// --- BSD Editline user actions -----------------------------------------------
|
|
|
|
#ifdef HAVE_EDITLINE
|
|
|
|
static unsigned char
|
|
on_editline_complete (EditLine *editline, int key)
|
|
{
|
|
(void) key;
|
|
(void) editline;
|
|
|
|
struct app_context *ctx = g_ctx;
|
|
|
|
// First prepare what Readline would have normally done for us...
|
|
const LineInfo *info_mb = el_line (editline);
|
|
int len = info_mb->lastchar - info_mb->buffer;
|
|
int point = info_mb->cursor - info_mb->buffer;
|
|
char *copy = xstrndup (info_mb->buffer, len);
|
|
|
|
// XXX: possibly incorrect wrt. shift state encodings
|
|
int el_start = point, el_end = point;
|
|
while (el_start && !strchr (WORD_BREAKING_CHARS, copy[el_start - 1]))
|
|
el_start--;
|
|
|
|
char **completions = make_completions (ctx, copy, el_start, el_end);
|
|
|
|
// XXX: possibly incorrect wrt. shift state encodings
|
|
copy[el_end] = '\0';
|
|
int el_len = mbstowcs (NULL, copy + el_start, 0);
|
|
free (copy);
|
|
|
|
if (!completions)
|
|
return CC_REFRESH_BEEP;
|
|
|
|
// Remove the original word
|
|
el_wdeletestr (editline, el_len);
|
|
|
|
// Insert the best match instead
|
|
el_insertstr (editline, completions[0]);
|
|
bool only_match = !completions[1];
|
|
for (char **p = completions; *p; p++)
|
|
free (*p);
|
|
free (completions);
|
|
|
|
// I'm not sure if Readline's menu-complete can at all be implemented
|
|
// with Editline. Spamming the terminal with possible completions
|
|
// probably isn't what the user wants and we have no way of detecting
|
|
// what the last executed handler was.
|
|
if (!only_match)
|
|
return CC_REFRESH_BEEP;
|
|
|
|
// But if there actually is just one match, finish the word
|
|
el_insertstr (editline, " ");
|
|
return CC_REFRESH;
|
|
}
|
|
|
|
static unsigned char
|
|
on_editline_return (EditLine *editline, int key)
|
|
{
|
|
(void) key;
|
|
struct app_context *ctx = g_ctx;
|
|
struct input_el *self = (struct input_el *) ctx->input;
|
|
|
|
const LineInfoW *info = el_wline (editline);
|
|
int len = info->lastchar - info->buffer;
|
|
int point = info->cursor - info->buffer;
|
|
|
|
wchar_t *line = calloc (sizeof *info->buffer, len + 1);
|
|
memcpy (line, info->buffer, sizeof *info->buffer * len);
|
|
|
|
// XXX: Editline seems to remember its position in history,
|
|
// so it's not going to work as you'd expect it to
|
|
if (*line)
|
|
{
|
|
HistEventW ev;
|
|
history_w (self->current->history, &ev, H_ENTER, line);
|
|
print_debug ("history: %d %ls", ev.num, ev.str);
|
|
}
|
|
free (line);
|
|
|
|
// process_input() expects a multibyte string
|
|
const LineInfo *info_mb = el_line (editline);
|
|
strv_append_owned (&ctx->pending_input,
|
|
xstrndup (info_mb->buffer, info_mb->lastchar - info_mb->buffer));
|
|
poller_idle_set (&ctx->input_event);
|
|
|
|
el_cursor (editline, len - point);
|
|
el_wdeletestr (editline, len);
|
|
return CC_REFRESH;
|
|
}
|
|
|
|
static void
|
|
app_editline_init (struct input_el *self)
|
|
{
|
|
// el_set() leaks memory in 20150325 and other versions, we need wchar_t
|
|
el_wset (self->editline, EL_ADDFN,
|
|
L"send-line", L"Send line", on_editline_return);
|
|
el_wset (self->editline, EL_ADDFN,
|
|
L"complete", L"Complete word", on_editline_complete);
|
|
|
|
struct input *input = &self->super;
|
|
input->add_functions (input->user_data);
|
|
bind_common_keys (g_ctx);
|
|
|
|
// Move native history commands
|
|
CALL_ (input, bind_meta, 'p', "ed-prev-history");
|
|
CALL_ (input, bind_meta, 'n', "ed-next-history");
|
|
|
|
// No, editline, it's not supposed to kill the entire line
|
|
CALL_ (input, bind_control, 'w', "ed-delete-prev-word");
|
|
// Just what are you doing?
|
|
CALL_ (input, bind_control, 'u', "vi-kill-line-prev");
|
|
|
|
// We need to hide the prompt and input first
|
|
CALL_ (input, bind, "\n", "send-line");
|
|
|
|
CALL_ (input, bind_control, 'i', "complete");
|
|
|
|
// Source the user's defaults file
|
|
el_source (self->editline, NULL);
|
|
}
|
|
|
|
#endif // HAVE_EDITLINE
|
|
|
|
// --- Configuration loading ---------------------------------------------------
|
|
|
|
static const char *g_first_time_help[] =
|
|
{
|
|
"",
|
|
"\x02Welcome to degesch!",
|
|
"",
|
|
"To get a list of all commands, type \x02/help\x02. To obtain",
|
|
"more information on a command or option, simply add it as",
|
|
"a parameter, e.g. \x02/help set\x02 or \x02/help behaviour.logging\x02.",
|
|
"",
|
|
"To switch between buffers, press \x02"
|
|
"F5/Ctrl-P\x02 or \x02" "F6/Ctrl-N\x02.",
|
|
"",
|
|
"Finally, adding a network is as simple as:",
|
|
" - \x02/server add freenode\x02",
|
|
" - \x02/set servers.freenode.addresses = \"chat.freenode.net\"\x02",
|
|
" - \x02/connect freenode\x02",
|
|
"",
|
|
"That should be enough to get you started. Have fun!",
|
|
""
|
|
};
|
|
|
|
static void
|
|
show_first_time_help (struct app_context *ctx)
|
|
{
|
|
for (size_t i = 0; i < N_ELEMENTS (g_first_time_help); i++)
|
|
log_global_indent (ctx, "#m", g_first_time_help[i]);
|
|
}
|
|
|
|
const char *g_default_aliases[][2] =
|
|
{
|
|
{ "c", "/buffer clear" }, { "close", "/buffer close" },
|
|
{ "j", "/join $*" }, { "p", "/part $*" },
|
|
{ "k", "/kick $*" }, { "kb", "/kickban $*" },
|
|
{ "m", "/msg $*" }, { "q", "/query $*" },
|
|
{ "n", "/names $*" }, { "t", "/topic $*" },
|
|
{ "w", "/who $*" }, { "wi", "/whois $*" },
|
|
{ "ww", "/whowas $*" },
|
|
};
|
|
|
|
static void
|
|
load_default_aliases (struct app_context *ctx)
|
|
{
|
|
struct str_map *aliases = get_aliases_config (ctx);
|
|
for (size_t i = 0; i < N_ELEMENTS (g_default_aliases); i++)
|
|
{
|
|
const char **pair = g_default_aliases[i];
|
|
str_map_set (aliases, pair[0], config_item_string_from_cstr (pair[1]));
|
|
}
|
|
}
|
|
|
|
static void
|
|
load_configuration (struct app_context *ctx)
|
|
{
|
|
// In theory, we could ensure that only one instance is running by locking
|
|
// the configuration file and ensuring here that it exists. This is
|
|
// however brittle, as it may be unlinked without the application noticing.
|
|
|
|
struct config_item *root = NULL;
|
|
struct error *e = NULL;
|
|
|
|
char *filename = resolve_filename
|
|
(PROGRAM_NAME ".conf", resolve_relative_config_filename);
|
|
if (filename)
|
|
root = config_read_from_file (filename, &e);
|
|
else
|
|
log_global_error (ctx, "Configuration file not found");
|
|
free (filename);
|
|
|
|
if (e)
|
|
{
|
|
log_global_error (ctx, "Cannot load configuration: #s", e->message);
|
|
log_global_error (ctx,
|
|
"Please either fix the configuration file or remove it");
|
|
error_free (e);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
if (root)
|
|
{
|
|
config_load (&ctx->config, root);
|
|
log_global_status (ctx, "Configuration loaded");
|
|
}
|
|
else
|
|
{
|
|
show_first_time_help (ctx);
|
|
load_default_aliases (ctx);
|
|
}
|
|
}
|
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
|
static void
|
|
load_servers (struct app_context *ctx)
|
|
{
|
|
struct str_map_iter iter = str_map_iter_make (get_servers_config (ctx));
|
|
|
|
struct config_item *subtree;
|
|
while ((subtree = str_map_iter_next (&iter)))
|
|
{
|
|
const char *name = iter.link->key;
|
|
const char *err;
|
|
if (subtree->type != CONFIG_ITEM_OBJECT)
|
|
log_global_error (ctx, "Error in configuration: "
|
|
"ignoring server `#s' as it's not an object", name);
|
|
else if ((err = check_server_name_for_addition (ctx, name)))
|
|
log_global_error (ctx, "Cannot load server `#s': #s", name, err);
|
|
else
|
|
server_add (ctx, name, subtree);
|
|
}
|
|
}
|
|
|
|
// --- Signals -----------------------------------------------------------------
|
|
|
|
static int g_signal_pipe[2]; ///< A pipe used to signal... signals
|
|
|
|
/// Program termination has been requested by a signal
|
|
static volatile sig_atomic_t g_termination_requested;
|
|
/// The window has changed in size
|
|
static volatile sig_atomic_t g_winch_received;
|
|
|
|
static void
|
|
postpone_signal_handling (char id)
|
|
{
|
|
int original_errno = errno;
|
|
if (write (g_signal_pipe[1], &id, 1) == -1)
|
|
soft_assert (errno == EAGAIN);
|
|
errno = original_errno;
|
|
}
|
|
|
|
static void
|
|
signal_superhandler (int signum)
|
|
{
|
|
switch (signum)
|
|
{
|
|
case SIGWINCH:
|
|
g_winch_received = true;
|
|
postpone_signal_handling ('w');
|
|
break;
|
|
case SIGINT:
|
|
case SIGTERM:
|
|
g_termination_requested = true;
|
|
postpone_signal_handling ('t');
|
|
break;
|
|
case SIGCHLD:
|
|
postpone_signal_handling ('c');
|
|
break;
|
|
case SIGTSTP:
|
|
postpone_signal_handling ('s');
|
|
break;
|
|
default:
|
|
hard_assert (!"unhandled signal");
|
|
}
|
|
}
|
|
|
|
static void
|
|
setup_signal_handlers (void)
|
|
{
|
|
if (pipe (g_signal_pipe) == -1)
|
|
exit_fatal ("%s: %s", "pipe", strerror (errno));
|
|
|
|
set_cloexec (g_signal_pipe[0]);
|
|
set_cloexec (g_signal_pipe[1]);
|
|
|
|
// So that the pipe cannot overflow; it would make write() block within
|
|
// the signal handler, which is something we really don't want to happen.
|
|
// The same holds true for read().
|
|
set_blocking (g_signal_pipe[0], false);
|
|
set_blocking (g_signal_pipe[1], false);
|
|
|
|
signal (SIGPIPE, SIG_IGN);
|
|
|
|
// So that we can write to the terminal while we're running a backlog
|
|
// helper. This is also inherited by the child so that it doesn't stop
|
|
// when it calls tcsetpgrp().
|
|
signal (SIGTTOU, SIG_IGN);
|
|
|
|
struct sigaction sa;
|
|
sa.sa_flags = SA_RESTART;
|
|
sa.sa_handler = signal_superhandler;
|
|
sigemptyset (&sa.sa_mask);
|
|
|
|
if (sigaction (SIGWINCH, &sa, NULL) == -1
|
|
|| sigaction (SIGINT, &sa, NULL) == -1
|
|
|| sigaction (SIGTERM, &sa, NULL) == -1
|
|
|| sigaction (SIGTSTP, &sa, NULL) == -1
|
|
|| sigaction (SIGCHLD, &sa, NULL) == -1)
|
|
exit_fatal ("sigaction: %s", strerror (errno));
|
|
}
|
|
|
|
// --- I/O event handlers ------------------------------------------------------
|
|
|
|
static bool
|
|
try_reap_child (struct app_context *ctx)
|
|
{
|
|
int status;
|
|
pid_t zombie = waitpid (-1, &status, WNOHANG | WUNTRACED);
|
|
|
|
if (zombie == -1)
|
|
{
|
|
if (errno == ECHILD) return false;
|
|
if (errno == EINTR) return true;
|
|
exit_fatal ("%s: %s", "waitpid", strerror (errno));
|
|
}
|
|
if (!zombie)
|
|
return false;
|
|
|
|
if (WIFSTOPPED (status))
|
|
{
|
|
// We could also send SIGCONT but what's the point
|
|
print_debug ("a child has been stopped, killing its process group");
|
|
kill (-zombie, SIGKILL);
|
|
return true;
|
|
}
|
|
|
|
if (ctx->running_backlog_helper)
|
|
ctx->running_backlog_helper = false;
|
|
else if (!ctx->running_editor)
|
|
{
|
|
log_global_debug (ctx, "An unknown child has died");
|
|
return true;
|
|
}
|
|
|
|
hard_assert (tcsetpgrp (STDOUT_FILENO, getpgid (0)) != -1);
|
|
resume_terminal (ctx);
|
|
|
|
if (WIFSIGNALED (status))
|
|
log_global_error (ctx,
|
|
"Child died from signal #d", WTERMSIG (status));
|
|
else if (WIFEXITED (status) && WEXITSTATUS (status) != 0)
|
|
log_global_error (ctx,
|
|
"Child returned status #d", WEXITSTATUS (status));
|
|
else if (ctx->running_editor)
|
|
input_editor_process (ctx);
|
|
|
|
if (ctx->running_editor)
|
|
input_editor_cleanup (ctx);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
on_signal_pipe_readable (const struct pollfd *fd, struct app_context *ctx)
|
|
{
|
|
char id = 0;
|
|
(void) read (fd->fd, &id, 1);
|
|
|
|
// Stop ourselves cleanly, even if it makes little sense to do this
|
|
if (id == 's')
|
|
{
|
|
suspend_terminal (ctx);
|
|
kill (getpid (), SIGSTOP);
|
|
g_winch_received = true;
|
|
resume_terminal (ctx);
|
|
}
|
|
|
|
// Reap all dead children (since the signal pipe may overflow etc. we run
|
|
// waitpid() in a loop to return all the zombies it knows about).
|
|
while (try_reap_child (ctx))
|
|
;
|
|
|
|
if (g_termination_requested && !ctx->quitting)
|
|
initiate_quit (ctx, NULL);
|
|
if (g_winch_received)
|
|
{
|
|
redraw_screen (ctx);
|
|
g_winch_received = false;
|
|
}
|
|
}
|
|
|
|
static void
|
|
process_mirc_escape (const struct pollfd *fd, struct app_context *ctx)
|
|
{
|
|
// There's no other way with libedit, as both el_getc() in a function
|
|
// handler and CC_ARGHACK would block execution
|
|
struct str *buf = &ctx->input_buffer;
|
|
str_reserve (buf, 1);
|
|
if (read (fd->fd, buf->str + buf->len, 1) != 1)
|
|
goto error;
|
|
buf->str[++buf->len] = '\0';
|
|
|
|
// XXX: I think this should be global and shared with Readline/libedit
|
|
mbstate_t state;
|
|
memset (&state, 0, sizeof state);
|
|
|
|
size_t len = mbrlen (buf->str, buf->len, &state);
|
|
|
|
// Illegal sequence
|
|
if (len == (size_t) -1)
|
|
goto error;
|
|
|
|
// Incomplete multibyte character
|
|
if (len == (size_t) -2)
|
|
return;
|
|
|
|
if (buf->len != 1)
|
|
goto error;
|
|
switch (buf->str[0])
|
|
{
|
|
case 'b' ^ 96:
|
|
case 'b': CALL_ (ctx->input, insert, "\x02"); break;
|
|
case 'c': CALL_ (ctx->input, insert, "\x03"); break;
|
|
case 'i' ^ 96:
|
|
case 'i':
|
|
case ']': CALL_ (ctx->input, insert, "\x1d"); break;
|
|
case 'x' ^ 96:
|
|
case 'x':
|
|
case '^': CALL_ (ctx->input, insert, "\x1e"); break;
|
|
case 'u' ^ 96:
|
|
case 'u':
|
|
case '_': CALL_ (ctx->input, insert, "\x1f"); break;
|
|
case 'v': CALL_ (ctx->input, insert, "\x16"); break;
|
|
case 'o': CALL_ (ctx->input, insert, "\x0f"); break;
|
|
|
|
default:
|
|
goto error;
|
|
}
|
|
goto done;
|
|
|
|
error:
|
|
CALL (ctx->input, ding);
|
|
done:
|
|
str_reset (buf);
|
|
ctx->awaiting_mirc_escape = false;
|
|
}
|
|
|
|
#define BRACKETED_PASTE_LIMIT 102400 ///< How much text can be pasted
|
|
|
|
static void
|
|
process_bracketed_paste (const struct pollfd *fd, struct app_context *ctx)
|
|
{
|
|
struct str *buf = &ctx->input_buffer;
|
|
str_reserve (buf, 1);
|
|
if (read (fd->fd, buf->str + buf->len, 1) != 1)
|
|
goto error;
|
|
buf->str[++buf->len] = '\0';
|
|
|
|
static const char stop_mark[] = "\x1b[201~";
|
|
static const size_t stop_mark_len = sizeof stop_mark - 1;
|
|
if (buf->len < stop_mark_len)
|
|
return;
|
|
|
|
size_t text_len = buf->len - stop_mark_len;
|
|
if (memcmp (buf->str + text_len, stop_mark, stop_mark_len))
|
|
return;
|
|
|
|
// Avoid endless flooding of the buffer
|
|
if (text_len > BRACKETED_PASTE_LIMIT)
|
|
log_global_error (ctx, "Paste trimmed to #d bytes",
|
|
(int) (text_len = BRACKETED_PASTE_LIMIT));
|
|
|
|
buf->str[text_len] = '\0';
|
|
if (CALL_ (ctx->input, insert, buf->str))
|
|
goto done;
|
|
|
|
error:
|
|
CALL (ctx->input, ding);
|
|
log_global_error (ctx, "Paste failed");
|
|
done:
|
|
str_reset (buf);
|
|
ctx->in_bracketed_paste = false;
|
|
}
|
|
|
|
static void
|
|
reset_autoaway (struct app_context *ctx)
|
|
{
|
|
// Stop the last one if it's been disabled altogether in the meantime
|
|
poller_timer_reset (&ctx->autoaway_tmr);
|
|
|
|
// Unset any automated statuses that are active right at this moment
|
|
struct str_map_iter iter = str_map_iter_make (&ctx->servers);
|
|
struct server *s;
|
|
while ((s = str_map_iter_next (&iter)))
|
|
{
|
|
if (s->autoaway_active
|
|
&& s->irc_user
|
|
&& s->irc_user->away)
|
|
irc_send (s, "AWAY");
|
|
|
|
s->autoaway_active = false;
|
|
}
|
|
|
|
// And potentially start a new auto-away timer
|
|
int64_t delay = get_config_integer
|
|
(ctx->config.root, "behaviour.autoaway_delay");
|
|
if (delay)
|
|
poller_timer_set (&ctx->autoaway_tmr, delay * 1000);
|
|
}
|
|
|
|
static void
|
|
on_autoaway_timer (struct app_context *ctx)
|
|
{
|
|
// An empty message would unset any away status, so let's ignore that
|
|
const char *message = get_config_string
|
|
(ctx->config.root, "behaviour.autoaway_message");
|
|
if (!message || !*message)
|
|
return;
|
|
|
|
struct str_map_iter iter = str_map_iter_make (&ctx->servers);
|
|
struct server *s;
|
|
while ((s = str_map_iter_next (&iter)))
|
|
{
|
|
// If the user has already been marked as away,
|
|
// don't override his current away status
|
|
if (s->irc_user
|
|
&& s->irc_user->away)
|
|
continue;
|
|
|
|
irc_send (s, "AWAY :%s", message);
|
|
s->autoaway_active = true;
|
|
}
|
|
}
|
|
|
|
static void
|
|
on_tty_readable (const struct pollfd *fd, struct app_context *ctx)
|
|
{
|
|
if (fd->revents & ~(POLLIN | POLLHUP | POLLERR))
|
|
print_debug ("fd %d: unexpected revents: %d", fd->fd, fd->revents);
|
|
|
|
if (ctx->awaiting_mirc_escape)
|
|
process_mirc_escape (fd, ctx);
|
|
else if (ctx->in_bracketed_paste)
|
|
process_bracketed_paste (fd, ctx);
|
|
else if (!ctx->quitting)
|
|
CALL (ctx->input, on_tty_readable);
|
|
|
|
// User activity detected, stop current auto-away and start anew;
|
|
// since they might have just changed the settings, do this last
|
|
reset_autoaway (ctx);
|
|
}
|
|
|
|
static void
|
|
rearm_flush_timer (struct app_context *ctx)
|
|
{
|
|
poller_timer_set (&ctx->flush_timer, 60 * 1000);
|
|
}
|
|
|
|
static void
|
|
on_flush_timer (struct app_context *ctx)
|
|
{
|
|
// I guess we don't need to do anything more complicated
|
|
fflush (NULL);
|
|
|
|
// It would be a bit problematic to handle it properly, so do this at least
|
|
LIST_FOR_EACH (struct buffer, buffer, ctx->buffers)
|
|
{
|
|
if (!buffer->log_file || !ferror (buffer->log_file))
|
|
continue;
|
|
|
|
// Might be a transient error such as running out of disk space,
|
|
// keep notifying of the problem until it disappears
|
|
clearerr (buffer->log_file);
|
|
log_global (ctx, BUFFER_LINE_ERROR | BUFFER_LINE_SKIP_FILE,
|
|
"Log write failure detected for #s", buffer->name);
|
|
}
|
|
|
|
// TODO: maybe also garbage collect all plugins?
|
|
rearm_flush_timer (ctx);
|
|
}
|
|
|
|
static void
|
|
rearm_date_change_timer (struct app_context *ctx)
|
|
{
|
|
struct tm tm_;
|
|
const time_t now = time (NULL);
|
|
if (!soft_assert (localtime_r (&now, &tm_)))
|
|
return;
|
|
|
|
tm_.tm_sec = tm_.tm_min = tm_.tm_hour = 0;
|
|
tm_.tm_mday++;
|
|
tm_.tm_isdst = -1;
|
|
|
|
const time_t midnight = mktime (&tm_);
|
|
if (!soft_assert (midnight != (time_t) -1))
|
|
return;
|
|
poller_timer_set (&ctx->date_chg_tmr, (midnight - now) * 1000);
|
|
}
|
|
|
|
static void
|
|
on_date_change_timer (struct app_context *ctx)
|
|
{
|
|
if (ctx->terminal_suspended <= 0)
|
|
{
|
|
CALL (ctx->input, hide);
|
|
buffer_update_time (ctx, time (NULL), stdout, 0);
|
|
CALL (ctx->input, show);
|
|
}
|
|
rearm_date_change_timer (ctx);
|
|
}
|
|
|
|
static void
|
|
on_pending_input (struct app_context *ctx)
|
|
{
|
|
poller_idle_reset (&ctx->input_event);
|
|
for (size_t i = 0; i < ctx->pending_input.len; i++)
|
|
process_input (ctx, ctx->pending_input.vector[i]);
|
|
strv_reset (&ctx->pending_input);
|
|
}
|
|
|
|
static void
|
|
init_poller_events (struct app_context *ctx)
|
|
{
|
|
ctx->signal_event = poller_fd_make (&ctx->poller, g_signal_pipe[0]);
|
|
ctx->signal_event.dispatcher = (poller_fd_fn) on_signal_pipe_readable;
|
|
ctx->signal_event.user_data = ctx;
|
|
poller_fd_set (&ctx->signal_event, POLLIN);
|
|
|
|
ctx->tty_event = poller_fd_make (&ctx->poller, STDIN_FILENO);
|
|
ctx->tty_event.dispatcher = (poller_fd_fn) on_tty_readable;
|
|
ctx->tty_event.user_data = ctx;
|
|
poller_fd_set (&ctx->tty_event, POLLIN);
|
|
|
|
ctx->flush_timer = poller_timer_make (&ctx->poller);
|
|
ctx->flush_timer.dispatcher = (poller_timer_fn) on_flush_timer;
|
|
ctx->flush_timer.user_data = ctx;
|
|
rearm_flush_timer (ctx);
|
|
|
|
ctx->date_chg_tmr = poller_timer_make (&ctx->poller);
|
|
ctx->date_chg_tmr.dispatcher = (poller_timer_fn) on_date_change_timer;
|
|
ctx->date_chg_tmr.user_data = ctx;
|
|
rearm_date_change_timer (ctx);
|
|
|
|
ctx->autoaway_tmr = poller_timer_make (&ctx->poller);
|
|
ctx->autoaway_tmr.dispatcher = (poller_timer_fn) on_autoaway_timer;
|
|
ctx->autoaway_tmr.user_data = ctx;
|
|
|
|
ctx->prompt_event = poller_idle_make (&ctx->poller);
|
|
ctx->prompt_event.dispatcher = (poller_idle_fn) on_refresh_prompt;
|
|
ctx->prompt_event.user_data = ctx;
|
|
|
|
ctx->input_event = poller_idle_make (&ctx->poller);
|
|
ctx->input_event.dispatcher = (poller_idle_fn) on_pending_input;
|
|
ctx->input_event.user_data = ctx;
|
|
}
|
|
|
|
// --- Tests -------------------------------------------------------------------
|
|
|
|
// The application is quite monolithic and can only be partially unit-tested.
|
|
// Locale-, terminal- and filesystem-dependent tests are also somewhat tricky.
|
|
|
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#ifdef TESTING
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static void
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on_test_config_foo_change (struct config_item *item)
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{
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*(bool *) item->user_data = item->value.boolean;
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}
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static struct config_schema g_config_test[] =
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{
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{ .name = "foo",
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.comment = "baz",
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.type = CONFIG_ITEM_BOOLEAN,
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.default_ = "off",
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.on_change = on_test_config_foo_change },
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{ .name = "bar",
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.type = CONFIG_ITEM_INTEGER,
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.validate = config_validate_nonnegative,
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.default_ = "1" },
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{ .name = "foobar",
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.type = CONFIG_ITEM_STRING,
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.default_ = "\"qux\"" },
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{}
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};
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static void
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test_config_load (struct config_item *subtree, void *user_data)
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{
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config_schema_apply_to_object (g_config_test, subtree, user_data);
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}
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static void
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test_config (void)
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{
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struct config config = config_make ();
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bool b = true;
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config_register_module (&config, "top", test_config_load, &b);
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config_load (&config, config_item_object ());
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config_schema_call_changed (config.root);
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hard_assert (b == false);
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struct config_item *invalid = config_item_integer (-1);
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hard_assert (!config_item_set_from (config_item_get (config.root,
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"top.bar", NULL), invalid, NULL));
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config_item_destroy (invalid);
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struct str s = str_make ();
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serialize_configuration (config.root, &s);
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config_load (&config, config_item_parse (s.str, s.len, false, NULL));
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str_free (&s);
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struct strv v = strv_make ();
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dump_matching_options (config.root, "*foo*", &v);
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hard_assert (v.len == 2);
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hard_assert (!strcmp (v.vector[0], "top.foo = off"));
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hard_assert (!strcmp (v.vector[1], "top.foobar = \"qux\""));
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strv_free (&v);
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config_free (&config);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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test_aliases (void)
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{
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struct strv v = strv_make ();
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expand_alias_definition ("/foo; /bar $* $$$;;;$1$2$3$4", "foo bar baz", &v);
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hard_assert (v.len == 4);
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hard_assert (!strcmp (v.vector[0], "/foo"));
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hard_assert (!strcmp (v.vector[1], " /bar foo bar baz $;"));
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hard_assert (!strcmp (v.vector[2], ""));
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hard_assert (!strcmp (v.vector[3], "foobarbaz"));
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strv_free (&v);
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}
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static void
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test_wrapping (void)
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{
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static const char *message = " foo bar foobar fóóbárbáz";
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static const char *split[] =
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{ " foo", "bar", "foob", "ar", "fó", "ób", "árb", "áz" };
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struct strv v = strv_make ();
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hard_assert (wrap_message (message, 4, &v, NULL));
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hard_assert (v.len == N_ELEMENTS (split));
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for (size_t i = 0; i < N_ELEMENTS (split); i++)
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hard_assert (!strcmp (v.vector[i], split[i]));
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strv_free (&v);
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}
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static void
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test_utf8_prefix (void)
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{
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static const char *a[] = { "fřoo", "Fřooř", "fřOOŘ" };
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hard_assert (utf8_common_prefix (a, N_ELEMENTS (a)) == 5);
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}
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int
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main (int argc, char *argv[])
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{
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struct test test;
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test_init (&test, argc, argv);
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test_add_simple (&test, "/config", NULL, test_config);
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test_add_simple (&test, "/aliases", NULL, test_aliases);
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test_add_simple (&test, "/wrapping", NULL, test_wrapping);
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test_add_simple (&test, "/utf8-prefix", NULL, test_utf8_prefix);
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return test_run (&test);
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}
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#define main main_shadowed
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#endif // TESTING
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// --- Main program ------------------------------------------------------------
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static const char *g_logo[] =
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{
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" __ __ ",
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" __/ /___________________/ / ",
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" / / , / / , / __/ __/ _ \\ ",
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"/ / / __/ / / __/_ / /_/ // / ",
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"\\__/\\__/_ /\\__/___/\\__/_//_/ " PROGRAM_VERSION,
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" /___/",
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""
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};
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static void
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show_logo (struct app_context *ctx)
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{
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for (size_t i = 0; i < N_ELEMENTS (g_logo); i++)
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log_global_indent (ctx, "#m", g_logo[i]);
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}
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static void
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format_input_and_die (struct app_context *ctx)
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{
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char buf[513];
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while (fgets (buf, sizeof buf, stdin))
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{
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struct formatter f = formatter_make (ctx, NULL);
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formatter_add (&f, "#m", buf);
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formatter_flush (&f, stdout, FLUSH_OPT_NOWRAP);
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formatter_free (&f);
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}
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exit (EXIT_SUCCESS);
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}
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int
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main (int argc, char *argv[])
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{
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// We include a generated file from kike including this array we don't use;
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// let's just keep it there and silence the compiler warning instead
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(void) g_default_replies;
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static const struct opt opts[] =
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{
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{ 'h', "help", NULL, 0, "display this help and exit" },
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{ 'V', "version", NULL, 0, "output version information and exit" },
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// This is mostly intended for previewing formatted MOTD files
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{ 'f', "format", NULL, OPT_LONG_ONLY, "format IRC text from stdin" },
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{ 0, NULL, NULL, 0, NULL }
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};
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struct opt_handler oh =
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opt_handler_make (argc, argv, opts, NULL, "Experimental IRC client.");
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bool format_mode = false;
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int c;
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while ((c = opt_handler_get (&oh)) != -1)
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switch (c)
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{
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case 'h':
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opt_handler_usage (&oh, stdout);
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exit (EXIT_SUCCESS);
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case 'V':
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printf (PROGRAM_NAME " " PROGRAM_VERSION "\n");
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exit (EXIT_SUCCESS);
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case 'f':
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format_mode = true;
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break;
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default:
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print_error ("wrong options");
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opt_handler_usage (&oh, stderr);
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exit (EXIT_FAILURE);
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}
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if (optind != argc)
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{
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opt_handler_usage (&oh, stderr);
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exit (EXIT_FAILURE);
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}
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opt_handler_free (&oh);
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// We only need to convert to and from the terminal encoding
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setlocale (LC_CTYPE, "");
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struct app_context ctx;
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app_context_init (&ctx);
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g_ctx = &ctx;
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init_openssl ();
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// Bootstrap configuration, so that we can access schema items at all
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register_config_modules (&ctx);
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config_load (&ctx.config, config_item_object ());
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// The following part is a bit brittle because of interdependencies
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init_colors (&ctx);
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if (format_mode) format_input_and_die (&ctx);
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init_global_buffer (&ctx);
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show_logo (&ctx);
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setup_signal_handlers ();
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init_poller_events (&ctx);
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load_configuration (&ctx);
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// At this moment we can safely call any "on_change" callbacks
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config_schema_call_changed (ctx.config.root);
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// Initialize input so that we can switch to new buffers
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on_refresh_prompt (&ctx);
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ctx.input->add_functions = input_add_functions;
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CALL_ (ctx.input, start, argv[0]);
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toggle_bracketed_paste (true);
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reset_autoaway (&ctx);
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// Finally, we juice the configuration for some servers to create
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load_plugins (&ctx);
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load_servers (&ctx);
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ctx.polling = true;
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while (ctx.polling)
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poller_run (&ctx.poller);
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CALL (ctx.input, stop);
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if (get_config_boolean (ctx.config.root, "behaviour.save_on_quit"))
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save_configuration (&ctx);
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app_context_free (&ctx);
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toggle_bracketed_paste (false);
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free_terminal ();
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return EXIT_SUCCESS;
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}
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