degesch: parse more of RPL_ISUPPORT

This commit is contained in:
Přemysl Eric Janouch 2015-06-01 21:45:04 +02:00
parent 81aff58f73
commit 2242724c34
1 changed files with 111 additions and 21 deletions

132
degesch.c
View File

@ -1035,11 +1035,6 @@ struct server
// IRC:
// TODO: casemapping-specific strxfrm and/or tolower (CASEMAPPING=rfc1459)
// TODO: channel name prefixes (CHANTYPES=#& + IDCHAN)
char *irc_channel_prefixes; ///< Channel user prefixes
char *irc_channel_modes; ///< Channel user modes
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
@ -1048,6 +1043,22 @@ struct server
char *irc_user_mode; ///< Our current user mode
char *irc_user_host; ///< Our current user@host
// Server-specific information (from RPL_ISUPPORT):
// TODO: implement a generic strcmp() on top of "irc_tolower"
/// Convert an IRC identifier character to lower-case
int (*irc_tolower) (int);
/// Key conversion function for hashmap lookups
size_t (*irc_strxfrm) (char *, const char *, size_t);
char *irc_chantypes; ///< Channel types (name prefixes)
char *irc_idchan_prefixes; ///< Prefixes for "safe channels"
char *irc_statusmsg; ///< Prefixes for channel targets
char *irc_chanuser_prefixes; ///< Channel user prefixes
char *irc_chanuser_modes; ///< Channel user modes
// Events:
struct poller_timer ping_tmr; ///< We should send a ping
@ -1068,9 +1079,16 @@ server_init (struct server *self, struct poller *poller)
str_init (&self->read_buffer);
self->state = IRC_DISCONNECTED;
// RFC 1459 as per the RPL_ISUPPORT draft
self->irc_channel_prefixes = xstrdup ("@+");
self->irc_channel_modes = xstrdup ("ov");
// Defaults as per the RPL_ISUPPORT draft
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_chanuser_prefixes = xstrdup ("@+");
self->irc_chanuser_modes = xstrdup ("ov");
str_map_init (&self->irc_users);
self->irc_users.key_xfrm = irc_strxfrm;
@ -1119,8 +1137,12 @@ server_free (struct server *self)
free (self->irc_user_mode);
free (self->irc_user_host);
free (self->irc_channel_prefixes);
free (self->irc_channel_modes);
free (self->irc_chantypes);
free (self->irc_idchan_prefixes);
free (self->irc_statusmsg);
free (self->irc_chanuser_prefixes);
free (self->irc_chanuser_modes);
str_map_free (&self->irc_users);
str_map_free (&self->irc_channels);
@ -3731,7 +3753,6 @@ irc_is_highlight (struct server *s, const char *message)
// --- Input handling ----------------------------------------------------------
// TODO: we will need a proper mode parser; to be shared with kike
// TODO: we alse definitely need to parse server capability messages
static void
irc_handle_join (struct server *s, const struct irc_message *msg)
@ -4430,7 +4451,7 @@ irc_process_names (struct server *s, struct channel *channel)
for (size_t i = 0; i < updates->len; i++)
{
const char *item = updates->vector[i];
const char *nick = item + strspn (item, s->irc_channel_modes);
const char *nick = item + strspn (item, s->irc_chanuser_modes);
struct channel_user *channel_user = str_map_find (&map, nick);
if (!channel_user)
{
@ -4479,11 +4500,72 @@ irc_handle_isupport_prefix (struct server *s, char *value)
if (*modes++ != '(' || !prefixes++ || strlen (value) != 2 * n_prefixes--)
return;
free (s->irc_channel_modes);
free (s->irc_channel_prefixes);
free (s->irc_chanuser_modes);
free (s->irc_chanuser_prefixes);
s->irc_channel_modes = xstrndup (modes, n_prefixes);
s->irc_channel_prefixes = xstrndup (prefixes, n_prefixes);
s->irc_chanuser_modes = xstrndup (modes, n_prefixes);
s->irc_chanuser_prefixes = xstrndup (prefixes, n_prefixes);
}
static void
irc_handle_isupport_casemapping (struct server *s, char *value)
{
// TODO: reinitialize hashtables with the new tolower() and strxfrm(),
// note that collisions may arise on reconnecting
if (!strcmp (value, "ascii"))
{
s->irc_tolower = tolower_ascii;
s->irc_strxfrm = tolower_ascii_strxfrm;
}
else if (!strcmp (value, "rfc1459"))
{
s->irc_tolower = irc_tolower;
s->irc_strxfrm = irc_strxfrm;
}
else if (!strcmp (value, "rfc1459-strict"))
{
// TODO: implement
s->irc_tolower = irc_tolower;
s->irc_strxfrm = irc_strxfrm;
}
}
static void
irc_handle_isupport_chantypes (struct server *s, char *value)
{
free (s->irc_chantypes);
s->irc_chantypes = xstrdup (value);
}
static void
irc_handle_isupport_idchan (struct server *s, char *value)
{
struct str prefixes;
str_init (&prefixes);
struct str_vector v;
str_vector_init (&v);
split_str_ignore_empty (value, ',', &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);
}
str_vector_free (&v);
free (s->irc_idchan_prefixes);
s->irc_idchan_prefixes = str_steal (&prefixes);
}
static void
irc_handle_isupport_statusmsg (struct server *s, char *value)
{
free (s->irc_statusmsg);
s->irc_statusmsg = xstrdup (value);
}
static void
@ -4522,14 +4604,22 @@ irc_handle_rpl_isupport (struct server *s, const struct irc_message *msg)
str_init (&value_unescaped);
unescape_isupport_value (value, &value_unescaped);
if (!strcmp (param, "PREFIX"))
irc_handle_isupport_prefix (s, value_unescaped.str);
if (!strcmp (param, "PREFIX"))
irc_handle_isupport_prefix (s, value_unescaped.str);
else if (!strcmp (param, "CASEMAPPING"))
irc_handle_isupport_casemapping (s, value_unescaped.str);
else if (!strcmp (param, "CHANTYPES"))
irc_handle_isupport_chantypes (s, value_unescaped.str);
else if (!strcmp (param, "IDCHAN"))
irc_handle_isupport_idchan (s, value_unescaped.str);
else if (!strcmp (param, "STATUSMSG"))
irc_handle_isupport_statusmsg (s, value_unescaped.str);
// TODO: also parse MODES, TARGMAX, CHANMODES and make use of them
// to split client commands as necessary
str_free (&value_unescaped);
}
// TODO: initialize key_strxfrm according to server properties;
// note that collisions may arise on reconnecting
}
static void