2 servers-reconnect.c : irssi
4 Copyright (C) 1999-2000 Timo Sirainen
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "chat-protocols.h"
28 #include "servers-setup.h"
29 #include "servers-reconnect.h"
34 static int last_reconnect_tag;
35 static int reconnect_timeout_tag;
36 static int reconnect_time;
37 static int connect_timeout;
39 void reconnect_save_status(SERVER_CONNECT_REC *conn, SERVER_REC *server)
41 g_free_not_null(conn->tag);
42 conn->tag = g_strdup(server->tag);
44 g_free_not_null(conn->away_reason);
45 conn->away_reason = !server->usermode_away ? NULL :
46 g_strdup(server->away_reason);
48 if (!server->connected) {
49 /* default to channels/usermode from connect record
50 since server isn't fully connected yet */
51 g_free_not_null(conn->channels);
52 conn->channels = server->connrec->no_autojoin_channels ? NULL :
53 g_strdup(server->connrec->channels);
55 g_free_not_null(conn->channels);
56 conn->channels = g_strdup(server->connrec->channels);
59 signal_emit("server reconnect save status", 2, conn, server);
62 static void server_reconnect_add(SERVER_CONNECT_REC *conn,
67 g_return_if_fail(IS_SERVER_CONNECT(conn));
69 rec = g_new(RECONNECT_REC, 1);
70 rec->tag = ++last_reconnect_tag;
71 rec->next_connect = next_connect;
74 server_connect_ref(conn);
76 reconnects = g_slist_append(reconnects, rec);
79 void server_reconnect_destroy(RECONNECT_REC *rec)
81 g_return_if_fail(rec != NULL);
83 reconnects = g_slist_remove(reconnects, rec);
85 signal_emit("server reconnect remove", 1, rec);
86 server_connect_unref(rec->conn);
89 if (reconnects == NULL)
90 last_reconnect_tag = 0;
93 static int server_reconnect_timeout(void)
95 SERVER_CONNECT_REC *conn;
96 GSList *list, *tmp, *next;
101 /* timeout any connections that haven't gotten to connected-stage */
102 for (tmp = servers; tmp != NULL; tmp = next) {
103 SERVER_REC *server = tmp->data;
106 if (!server->connected &&
107 server->connect_time + connect_timeout < now &&
108 connect_timeout > 0) {
109 server->connection_lost = TRUE;
110 server_disconnect(server);
114 /* If server_connect() removes the next reconnection in queue,
115 we're screwed. I don't think this should happen anymore, but just
116 to be sure we don't crash, do this safely. */
117 list = g_slist_copy(reconnects);
118 for (tmp = list; tmp != NULL; tmp = tmp->next) {
119 RECONNECT_REC *rec = tmp->data;
121 if (g_slist_find(reconnects, rec) == NULL)
124 if (rec->next_connect <= now) {
126 server_connect_ref(conn);
127 server_reconnect_destroy(rec);
128 server_connect(conn);
129 server_connect_unref(conn);
137 static void sserver_connect(SERVER_SETUP_REC *rec, SERVER_CONNECT_REC *conn)
139 conn->family = rec->family;
140 conn->address = g_strdup(rec->address);
141 if (conn->port == 0) conn->port = rec->port;
143 server_setup_fill_reconn(conn, rec);
144 server_reconnect_add(conn, rec->last_connect+reconnect_time);
145 server_connect_unref(conn);
148 static SERVER_CONNECT_REC *
149 server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
151 SERVER_CONNECT_REC *dest;
154 signal_emit("server connect copy", 2, &dest, src);
155 g_return_val_if_fail(dest != NULL, NULL);
157 server_connect_ref(dest);
158 dest->type = module_get_uniq_id("SERVER CONNECT", 0);
159 dest->reconnection = src->reconnection;
160 dest->proxy = g_strdup(src->proxy);
161 dest->proxy_port = src->proxy_port;
162 dest->proxy_string = g_strdup(src->proxy_string);
163 dest->proxy_string_after = g_strdup(src->proxy_string_after);
164 dest->proxy_password = g_strdup(src->proxy_password);
166 dest->tag = g_strdup(src->tag);
169 dest->family = src->family;
170 dest->address = g_strdup(src->address);
171 dest->port = src->port;
172 dest->password = g_strdup(src->password);
175 dest->chatnet = g_strdup(src->chatnet);
176 dest->nick = g_strdup(src->nick);
177 dest->username = g_strdup(src->username);
178 dest->realname = g_strdup(src->realname);
180 if (src->own_ip4 != NULL) {
181 dest->own_ip4 = g_new(IPADDR, 1);
182 memcpy(dest->own_ip4, src->own_ip4, sizeof(IPADDR));
184 if (src->own_ip6 != NULL) {
185 dest->own_ip6 = g_new(IPADDR, 1);
186 memcpy(dest->own_ip6, src->own_ip6, sizeof(IPADDR));
189 dest->channels = g_strdup(src->channels);
190 dest->away_reason = g_strdup(src->away_reason);
191 dest->no_autojoin_channels = src->no_autojoin_channels;
193 dest->use_ssl = src->use_ssl;
198 #define server_should_reconnect(server) \
199 ((server)->connection_lost && !(server)->no_reconnect && \
200 ((server)->connrec->chatnet != NULL || \
201 (!(server)->banned && !(server)->dns_error)))
203 #define sserver_connect_ok(rec, net) \
204 (!(rec)->banned && !(rec)->dns_error && (rec)->chatnet != NULL && \
205 g_strcasecmp((rec)->chatnet, (net)) == 0)
207 static void sig_reconnect(SERVER_REC *server)
209 SERVER_CONNECT_REC *conn;
210 SERVER_SETUP_REC *sserver;
212 int use_next, through;
215 g_return_if_fail(IS_SERVER(server));
217 if (reconnect_time == -1 || !server_should_reconnect(server))
220 conn = server_connect_copy_skeleton(server->connrec, FALSE);
221 g_return_if_fail(conn != NULL);
223 /* save the server status */
224 if (server->connected) {
225 conn->reconnection = TRUE;
227 reconnect_save_status(conn, server);
230 sserver = server_setup_find(server->connrec->address,
231 server->connrec->port,
232 server->connrec->chatnet);
234 if (sserver != NULL) {
235 /* save the last connection time/status */
236 sserver->last_connect = server->connect_time == 0 ?
237 time(NULL) : server->connect_time;
238 sserver->last_failed = !server->connected;
239 sserver->banned = server->banned;
240 sserver->dns_error = server->dns_error;
243 if (sserver == NULL || conn->chatnet == NULL) {
244 /* not in any chatnet, just reconnect back to same server */
245 conn->family = server->connrec->family;
246 conn->address = g_strdup(server->connrec->address);
247 conn->port = server->connrec->port;
248 conn->password = g_strdup(server->connrec->password);
250 server_reconnect_add(conn, (server->connect_time == 0 ? time(NULL) :
251 server->connect_time) + reconnect_time);
252 server_connect_unref(conn);
256 /* always try to first connect to the first on the list where we
257 haven't got unsuccessful connection attempts for the past half
261 for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
262 SERVER_SETUP_REC *rec = tmp->data;
264 if (sserver_connect_ok(rec, conn->chatnet) &&
265 (!rec->last_connect || !rec->last_failed ||
266 rec->last_connect < now-FAILED_RECONNECT_WAIT)) {
268 conn->port = server->connrec->port;
269 sserver_connect(rec, conn);
274 /* just try the next server in list */
275 use_next = through = FALSE;
276 for (tmp = setupservers; tmp != NULL; ) {
277 SERVER_SETUP_REC *rec = tmp->data;
279 if (!use_next && server->connrec->port == rec->port &&
280 g_strcasecmp(rec->address, server->connrec->address) == 0)
282 else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
284 conn->port = server->connrec->port;
285 sserver_connect(rec, conn);
289 if (tmp->next != NULL) {
295 /* shouldn't happen unless there's no servers in
296 this chatnet in setup.. */
297 server_connect_unref(conn);
302 use_next = through = TRUE;
306 static void sig_connected(SERVER_REC *server)
308 g_return_if_fail(IS_SERVER(server));
309 if (!server->connrec->reconnection)
312 if (server->connrec->channels != NULL)
313 server->channels_join(server, server->connrec->channels, TRUE);
316 /* Remove all servers from reconnect list */
317 /* SYNTAX: RMRECONNS */
318 static void cmd_rmreconns(void)
320 while (reconnects != NULL)
321 server_reconnect_destroy(reconnects->data);
324 static RECONNECT_REC *reconnect_find_tag(int tag)
328 for (tmp = reconnects; tmp != NULL; tmp = tmp->next) {
329 RECONNECT_REC *rec = tmp->data;
338 static void reconnect_all(void)
341 SERVER_CONNECT_REC *conn;
344 /* first move reconnects to another list so if server_connect()
345 fails and goes to reconnection list again, we won't get stuck
348 while (reconnects != NULL) {
349 rec = reconnects->data;
351 list = g_slist_append(list, rec->conn);
352 server_connect_ref(rec->conn);
353 server_reconnect_destroy(rec);
357 while (list != NULL) {
360 server_connect(conn);
361 server_connect_unref(conn);
362 list = g_slist_remove(list, conn);
366 /* SYNTAX: RECONNECT <tag> [<quit message>] */
367 static void cmd_reconnect(const char *data, SERVER_REC *server)
369 SERVER_CONNECT_REC *conn;
375 if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_GETREST, &tag, &msg))
378 if (*tag != '\0' && strcmp(tag, "*") != 0)
379 server = server_find_tag(tag);
381 if (server != NULL) {
382 /* reconnect connected server */
383 conn = server_connect_copy_skeleton(server->connrec, TRUE);
385 if (server->connected)
386 reconnect_save_status(conn, server);
388 msg = g_strconcat("* ", *msg == '\0' ?
389 "Reconnecting" : msg, NULL);
390 signal_emit("command disconnect", 2, msg, server);
393 conn->reconnection = TRUE;
394 server_connect(conn);
395 server_connect_unref(conn);
396 cmd_params_free(free_arg);
400 if (g_strcasecmp(tag, "all") == 0) {
401 /* reconnect all servers in reconnect queue */
403 cmd_params_free(free_arg);
408 /* reconnect to first server in reconnection list */
409 if (reconnects == NULL)
410 cmd_return_error(CMDERR_NOT_CONNECTED);
411 rec = reconnects->data;
413 if (g_strncasecmp(data, "RECON-", 6) == 0)
417 rec = tagnum <= 0 ? NULL : reconnect_find_tag(tagnum);
421 signal_emit("server reconnect not found", 1, data);
424 server_connect_ref(conn);
425 server_reconnect_destroy(rec);
426 server_connect(conn);
427 server_connect_unref(conn);
430 cmd_params_free(free_arg);
433 static void cmd_disconnect(const char *data, SERVER_REC *server)
437 if (g_strncasecmp(data, "RECON-", 6) != 0)
438 return; /* handle only reconnection removing */
440 rec = reconnect_find_tag(atoi(data+6));
443 signal_emit("server reconnect not found", 1, data);
445 server_reconnect_destroy(rec);
449 static void sig_chat_protocol_deinit(CHAT_PROTOCOL_REC *proto)
453 for (tmp = reconnects; tmp != NULL; tmp = next) {
454 RECONNECT_REC *rec = tmp->data;
457 if (rec->conn->chat_type == proto->id)
458 server_reconnect_destroy(rec);
462 static void read_settings(void)
464 reconnect_time = settings_get_int("server_reconnect_time");
465 connect_timeout = settings_get_int("server_connect_timeout");
468 void servers_reconnect_init(void)
470 settings_add_int("server", "server_reconnect_time", 300);
471 settings_add_int("server", "server_connect_timeout", 300);
474 last_reconnect_tag = 0;
476 reconnect_timeout_tag = g_timeout_add(1000, (GSourceFunc) server_reconnect_timeout, NULL);
479 signal_add("server connect failed", (SIGNAL_FUNC) sig_reconnect);
480 signal_add("server disconnected", (SIGNAL_FUNC) sig_reconnect);
481 signal_add("event connected", (SIGNAL_FUNC) sig_connected);
482 signal_add("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
483 signal_add("setup changed", (SIGNAL_FUNC) read_settings);
485 command_bind("rmreconns", NULL, (SIGNAL_FUNC) cmd_rmreconns);
486 command_bind("reconnect", NULL, (SIGNAL_FUNC) cmd_reconnect);
487 command_bind_first("disconnect", NULL, (SIGNAL_FUNC) cmd_disconnect);
490 void servers_reconnect_deinit(void)
492 g_source_remove(reconnect_timeout_tag);
494 signal_remove("server connect failed", (SIGNAL_FUNC) sig_reconnect);
495 signal_remove("server disconnected", (SIGNAL_FUNC) sig_reconnect);
496 signal_remove("event connected", (SIGNAL_FUNC) sig_connected);
497 signal_remove("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
498 signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
500 command_unbind("rmreconns", (SIGNAL_FUNC) cmd_rmreconns);
501 command_unbind("reconnect", (SIGNAL_FUNC) cmd_reconnect);
502 command_unbind("disconnect", (SIGNAL_FUNC) cmd_disconnect);