degesch: irc_{host,port} -> addresses
Now you can finally specify multiple addresses to connect to.
This commit is contained in:
parent
c5b38842bf
commit
a77ab689eb
159
degesch.c
159
degesch.c
@ -1249,6 +1249,29 @@ config_validate_nonjunk_string
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return true;
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}
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static bool
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config_validate_addresses
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(const struct config_item_ *item, struct error **e)
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{
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if (item->type == CONFIG_ITEM_NULL)
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return true;
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if (!config_validate_nonjunk_string (item, e))
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return false;
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// Comma-separated list of "host[:port]" pairs
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regex_t re;
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int err = regcomp (&re, "^([^/:,]+(:[^/:,]+)?)?"
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"(,([^/:,]+(:[^/:,]+)?)?)*$", REG_EXTENDED | REG_NOSUB);
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hard_assert (!err);
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bool result = !regexec (&re, item->value.string.str, 0, NULL, 0);
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if (!result)
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error_set (e, "invalid address list string");
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regfree (&re);
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return result;
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}
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static bool
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config_validate_nonnegative
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(const struct config_item_ *item, struct error **e)
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@ -1279,15 +1302,10 @@ static struct config_schema g_config_server[] =
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.type = CONFIG_ITEM_STRING,
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.validate = config_validate_nonjunk_string },
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{ .name = "irc_host",
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.comment = "Address of the IRC server",
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.type = CONFIG_ITEM_STRING,
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.validate = config_validate_nonjunk_string },
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{ .name = "irc_port",
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.comment = "Port of the IRC server",
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.type = CONFIG_ITEM_INTEGER,
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.validate = config_validate_nonnegative,
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.default_ = "6667" },
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{ .name = "addresses",
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.comment = "Addresses of the IRC network (e.g. \"irc.net:6667\")",
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.type = CONFIG_ITEM_STRING_ARRAY,
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.validate = config_validate_addresses },
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{ .name = "ssl",
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.comment = "Whether to use SSL/TLS",
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@ -3303,9 +3321,24 @@ irc_on_connector_connected (void *user_data, int socket)
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irc_finish_connection (s, socket);
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}
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static void
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irc_split_host_port (char *s, char **host, char **port)
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{
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char *colon = strchr (s, ':');
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if (colon)
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{
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*colon = '\0';
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*port = ++colon;
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}
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else
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*port = "6667";
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*host = s;
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}
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static bool
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irc_setup_connector (struct server *s,
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const char *host, const char *port, struct error **e)
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const struct str_vector *addresses, struct error **e)
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{
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struct connector *connector = xmalloc (sizeof *connector);
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connector_init (connector, &s->ctx->poller);
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@ -3319,33 +3352,28 @@ irc_setup_connector (struct server *s,
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s->state = IRC_CONNECTING;
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s->connector = connector;
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if (!connector_add_target (connector, host, port, e))
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for (size_t i = 0; i < addresses->len; i++)
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{
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irc_destroy_connector (s);
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return false;
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char *host, *port;
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irc_split_host_port (addresses->vector[i], &host, &port);
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if (!connector_add_target (connector, host, port, e))
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{
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irc_destroy_connector (s);
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return false;
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}
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}
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connector_step (connector);
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return true;
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}
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static void
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irc_initiate_connect (struct server *s)
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static bool
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irc_initiate_connect_socks (struct server *s,
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const struct str_vector *addresses, struct error **e)
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{
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hard_assert (s->state == IRC_DISCONNECTED);
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struct app_context *ctx = s->ctx;
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const char *irc_host = get_config_string (ctx, "server.irc_host");
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int64_t irc_port_int = get_config_integer (ctx, "server.irc_port");
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if (!get_config_string (ctx, "server.irc_host"))
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{
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// No sense in trying to reconnect
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buffer_send_error (ctx, s->buffer,
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"No hostname specified in configuration");
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return;
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}
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const char *socks_host = get_config_string (ctx, "server.socks_host");
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int64_t socks_port_int = get_config_integer (ctx, "server.socks_port");
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@ -3354,36 +3382,65 @@ irc_initiate_connect (struct server *s)
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const char *socks_password =
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get_config_string (ctx, "server.socks_password");
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char *irc_port = xstrdup_printf ("%" PRIi64, irc_port_int);
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if (!socks_host)
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return false;
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// FIXME: we only try the first address (still better than nothing)
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char *irc_host, *irc_port;
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irc_split_host_port (addresses->vector[0], &irc_host, &irc_port);
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char *socks_port = xstrdup_printf ("%" PRIi64, socks_port_int);
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// TODO: the SOCKS code needs a rewrite so that we don't block on it either
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struct error *e = NULL;
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if (socks_host)
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{
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char *address = format_host_port_pair (irc_host, irc_port);
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char *socks_address = format_host_port_pair (socks_host, socks_port);
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buffer_send_status (ctx, s->buffer,
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"Connecting to %s via %s...", address, socks_address);
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free (socks_address);
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free (address);
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char *address = format_host_port_pair (irc_host, irc_port);
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char *socks_address = format_host_port_pair (socks_host, socks_port);
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buffer_send_status (ctx, s->buffer,
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"Connecting to %s via %s...", address, socks_address);
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free (socks_address);
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free (address);
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struct error *error = NULL;
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int fd = socks_connect (socks_host, socks_port, irc_host, irc_port,
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socks_username, socks_password, &error);
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if (fd != -1)
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irc_finish_connection (s, fd);
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else
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{
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error_set (&e, "%s: %s", "SOCKS connection failed", error->message);
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error_free (error);
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}
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}
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// TODO: the SOCKS code needs a rewrite so that we don't block on it either;
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// perhaps it could act as a special kind of connector
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struct error *error = NULL;
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bool result = true;
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int fd = socks_connect (socks_host, socks_port, irc_host, irc_port,
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socks_username, socks_password, &error);
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if (fd != -1)
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irc_finish_connection (s, fd);
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else
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irc_setup_connector (s, irc_host, irc_port, &e);
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{
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error_set (e, "%s: %s", "SOCKS connection failed", error->message);
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error_free (error);
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result = false;
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}
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free (irc_port);
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free (socks_port);
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return true;
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}
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static void
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irc_initiate_connect (struct server *s)
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{
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hard_assert (s->state == IRC_DISCONNECTED);
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struct app_context *ctx = s->ctx;
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const char *addresses = get_config_string (ctx, "server.addresses");
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if (!addresses || !addresses[strspn (addresses, ",")])
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{
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// No sense in trying to reconnect
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buffer_send_error (ctx, s->buffer,
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"No addresses specified in configuration");
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return;
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}
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struct str_vector servers;
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str_vector_init (&servers);
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split_str_ignore_empty (addresses, ',', &servers);
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struct error *e = NULL;
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if (!irc_initiate_connect_socks (s, &servers, &e) && !e)
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irc_setup_connector (s, &servers, &e);
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str_vector_free (&servers);
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if (e)
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{
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