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;
38 void reconnect_save_status(SERVER_CONNECT_REC *conn, SERVER_REC *server)
40 g_free_not_null(conn->tag);
41 conn->tag = g_strdup(server->tag);
43 g_free_not_null(conn->away_reason);
44 conn->away_reason = !server->usermode_away ? NULL :
45 g_strdup(server->away_reason);
47 signal_emit("server reconnect save status", 2, conn, server);
50 static void server_reconnect_add(SERVER_CONNECT_REC *conn,
55 g_return_if_fail(IS_SERVER_CONNECT(conn));
57 rec = g_new(RECONNECT_REC, 1);
58 rec->tag = ++last_reconnect_tag;
59 rec->next_connect = next_connect;
62 server_connect_ref(conn);
64 reconnects = g_slist_append(reconnects, rec);
67 void server_reconnect_destroy(RECONNECT_REC *rec)
69 g_return_if_fail(rec != NULL);
71 reconnects = g_slist_remove(reconnects, rec);
73 signal_emit("server reconnect remove", 1, rec);
74 server_connect_unref(rec->conn);
77 if (reconnects == NULL)
78 last_reconnect_tag = 0;
81 static int server_reconnect_timeout(void)
83 SERVER_CONNECT_REC *conn;
87 /* If server_connect() removes the next reconnection in queue,
88 we're screwed. I don't think this should happen anymore, but just
89 to be sure we don't crash, do this safely. */
90 list = g_slist_copy(reconnects);
92 for (tmp = list; tmp != NULL; tmp = tmp->next) {
93 RECONNECT_REC *rec = tmp->data;
95 if (g_slist_find(reconnects, rec) == NULL)
98 if (rec->next_connect <= now) {
100 server_connect_ref(conn);
101 server_reconnect_destroy(rec);
102 CHAT_PROTOCOL(conn)->server_connect(conn);
103 server_connect_unref(conn);
111 static void sserver_connect(SERVER_SETUP_REC *rec, SERVER_CONNECT_REC *conn)
113 conn->family = rec->family;
114 conn->address = g_strdup(rec->address);
115 if (conn->port == 0) conn->port = rec->port;
117 server_setup_fill_reconn(conn, rec);
118 server_reconnect_add(conn, rec->last_connect+reconnect_time);
119 server_connect_unref(conn);
122 static SERVER_CONNECT_REC *
123 server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
125 SERVER_CONNECT_REC *dest;
128 signal_emit("server connect copy", 2, &dest, src);
129 g_return_val_if_fail(dest != NULL, NULL);
131 server_connect_ref(dest);
132 dest->type = module_get_uniq_id("SERVER CONNECT", 0);
133 dest->reconnection = src->reconnection;
134 dest->proxy = g_strdup(src->proxy);
135 dest->proxy_port = src->proxy_port;
136 dest->proxy_string = g_strdup(src->proxy_string);
137 dest->proxy_string_after = g_strdup(src->proxy_string_after);
138 dest->proxy_password = g_strdup(src->proxy_password);
140 dest->tag = g_strdup(src->tag);
143 dest->family = src->family;
144 dest->address = g_strdup(src->address);
145 dest->port = src->port;
146 dest->password = g_strdup(src->password);
149 dest->chatnet = g_strdup(src->chatnet);
150 dest->nick = g_strdup(src->nick);
151 dest->username = g_strdup(src->username);
152 dest->realname = g_strdup(src->realname);
154 if (src->own_ip4 != NULL) {
155 dest->own_ip4 = g_new(IPADDR, 1);
156 memcpy(dest->own_ip4, src->own_ip4, sizeof(IPADDR));
158 if (src->own_ip6 != NULL) {
159 dest->own_ip6 = g_new(IPADDR, 1);
160 memcpy(dest->own_ip6, src->own_ip6, sizeof(IPADDR));
163 dest->channels = g_strdup(src->channels);
164 dest->away_reason = g_strdup(src->away_reason);
169 #define server_should_reconnect(server) \
170 ((server)->connection_lost && !(server)->no_reconnect && \
171 ((server)->connrec->chatnet != NULL || \
172 (!(server)->banned && !(server)->dns_error)))
174 #define sserver_connect_ok(rec, net) \
175 (!(rec)->banned && !(rec)->dns_error && (rec)->chatnet != NULL && \
176 g_strcasecmp((rec)->chatnet, (net)) == 0)
178 static void sig_reconnect(SERVER_REC *server)
180 SERVER_CONNECT_REC *conn;
181 SERVER_SETUP_REC *sserver;
183 int use_next, through;
186 g_return_if_fail(IS_SERVER(server));
188 if (reconnect_time == -1 || !server_should_reconnect(server))
191 conn = server_connect_copy_skeleton(server->connrec, FALSE);
192 g_return_if_fail(conn != NULL);
194 /* save the server status */
195 if (server->connected) {
196 conn->reconnection = TRUE;
198 reconnect_save_status(conn, server);
201 sserver = server_setup_find(server->connrec->address,
202 server->connrec->port,
203 server->connrec->chatnet);
205 if (sserver != NULL) {
206 /* save the last connection time/status */
207 sserver->last_connect = server->connect_time == 0 ?
208 time(NULL) : server->connect_time;
209 sserver->last_failed = !server->connected;
210 if (server->banned) sserver->banned = TRUE;
211 if (server->dns_error) sserver->dns_error = TRUE;
214 if (sserver == NULL || conn->chatnet == NULL) {
215 /* not in any chatnet, just reconnect back to same server */
216 conn->family = server->connrec->family;
217 conn->address = g_strdup(server->connrec->address);
218 conn->port = server->connrec->port;
219 conn->password = g_strdup(server->connrec->password);
221 server_reconnect_add(conn, (server->connect_time == 0 ? time(NULL) :
222 server->connect_time) + reconnect_time);
223 server_connect_unref(conn);
227 /* always try to first connect to the first on the list where we
228 haven't got unsuccessful connection attempts for the past half
232 for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
233 SERVER_SETUP_REC *rec = tmp->data;
235 if (sserver_connect_ok(rec, conn->chatnet) &&
236 (!rec->last_connect || !rec->last_failed ||
237 rec->last_connect < now-FAILED_RECONNECT_WAIT)) {
239 conn->port = server->connrec->port;
240 sserver_connect(rec, conn);
245 /* just try the next server in list */
246 use_next = through = FALSE;
247 for (tmp = setupservers; tmp != NULL; ) {
248 SERVER_SETUP_REC *rec = tmp->data;
250 if (!use_next && server->connrec->port == rec->port &&
251 g_strcasecmp(rec->address, server->connrec->address) == 0)
253 else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
255 conn->port = server->connrec->port;
256 sserver_connect(rec, conn);
260 if (tmp->next != NULL) {
266 /* shouldn't happen unless there's no servers in
267 this chatnet in setup.. */
268 server_connect_unref(conn);
273 use_next = through = TRUE;
277 static void sig_connected(SERVER_REC *server)
279 g_return_if_fail(IS_SERVER(server));
280 if (!server->connrec->reconnection)
283 if (server->connrec->channels != NULL)
284 server->channels_join(server, server->connrec->channels, TRUE);
287 /* Remove all servers from reconnect list */
288 /* SYNTAX: RMRECONNS */
289 static void cmd_rmreconns(void)
291 while (reconnects != NULL)
292 server_reconnect_destroy(reconnects->data);
295 static RECONNECT_REC *reconnect_find_tag(int tag)
299 for (tmp = reconnects; tmp != NULL; tmp = tmp->next) {
300 RECONNECT_REC *rec = tmp->data;
309 static void reconnect_all(void)
312 SERVER_CONNECT_REC *conn;
315 /* first move reconnects to another list so if server_connect()
316 fails and goes to reconnection list again, we won't get stuck
319 while (reconnects != NULL) {
320 rec = reconnects->data;
322 list = g_slist_append(list, rec->conn);
323 server_connect_ref(rec->conn);
324 server_reconnect_destroy(rec);
328 while (list != NULL) {
331 CHAT_PROTOCOL(conn)->server_connect(conn);
332 server_connect_unref(conn);
333 list = g_slist_remove(list, conn);
337 /* SYNTAX: RECONNECT <tag> */
338 static void cmd_reconnect(const char *data, SERVER_REC *server)
340 SERVER_CONNECT_REC *conn;
344 if (*data == '\0' && server != NULL) {
345 /* reconnect back to same server */
346 conn = server_connect_copy_skeleton(server->connrec, TRUE);
348 if (server->connected)
349 reconnect_save_status(conn, server);
350 signal_emit("command disconnect", 2, "* Reconnecting", server);
352 conn->reconnection = TRUE;
353 CHAT_PROTOCOL(conn)->server_connect(conn);
354 server_connect_unref(conn);
358 if (g_strcasecmp(data, "all") == 0) {
359 /* reconnect all servers in reconnect queue */
365 /* reconnect to first server in reconnection list */
366 if (reconnects == NULL)
367 cmd_return_error(CMDERR_NOT_CONNECTED);
368 rec = reconnects->data;
370 if (g_strncasecmp(data, "RECON-", 6) == 0)
374 rec = tag <= 0 ? NULL : reconnect_find_tag(tag);
377 signal_emit("server reconnect not found", 1, data);
383 server_connect_ref(conn);
384 server_reconnect_destroy(rec);
385 CHAT_PROTOCOL(conn)->server_connect(conn);
386 server_connect_unref(conn);
389 static void cmd_disconnect(const char *data, SERVER_REC *server)
393 if (g_strncasecmp(data, "RECON-", 6) != 0)
394 return; /* handle only reconnection removing */
396 rec = reconnect_find_tag(atoi(data+6));
399 signal_emit("server reconnect not found", 1, data);
401 server_reconnect_destroy(rec);
405 static void sig_chat_protocol_deinit(CHAT_PROTOCOL_REC *proto)
409 for (tmp = reconnects; tmp != NULL; tmp = next) {
410 RECONNECT_REC *rec = tmp->data;
413 if (rec->conn->chat_type == proto->id)
414 server_reconnect_destroy(rec);
418 static void read_settings(void)
420 reconnect_time = settings_get_int("server_reconnect_time");
423 void servers_reconnect_init(void)
425 settings_add_int("server", "server_reconnect_time", 300);
428 last_reconnect_tag = 0;
430 reconnect_timeout_tag = g_timeout_add(1000, (GSourceFunc) server_reconnect_timeout, NULL);
433 signal_add("server connect failed", (SIGNAL_FUNC) sig_reconnect);
434 signal_add("server disconnected", (SIGNAL_FUNC) sig_reconnect);
435 signal_add("event connected", (SIGNAL_FUNC) sig_connected);
436 signal_add("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
437 signal_add("setup changed", (SIGNAL_FUNC) read_settings);
439 command_bind("rmreconns", NULL, (SIGNAL_FUNC) cmd_rmreconns);
440 command_bind("reconnect", NULL, (SIGNAL_FUNC) cmd_reconnect);
441 command_bind_first("disconnect", NULL, (SIGNAL_FUNC) cmd_disconnect);
444 void servers_reconnect_deinit(void)
446 g_source_remove(reconnect_timeout_tag);
448 signal_remove("server connect failed", (SIGNAL_FUNC) sig_reconnect);
449 signal_remove("server disconnected", (SIGNAL_FUNC) sig_reconnect);
450 signal_remove("event connected", (SIGNAL_FUNC) sig_connected);
451 signal_remove("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
452 signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
454 command_unbind("rmreconns", (SIGNAL_FUNC) cmd_rmreconns);
455 command_unbind("reconnect", (SIGNAL_FUNC) cmd_reconnect);
456 command_unbind("disconnect", (SIGNAL_FUNC) cmd_disconnect);