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->away_reason);
41 conn->away_reason = !server->usermode_away ? NULL :
42 g_strdup(server->away_reason);
44 signal_emit("server reconnect save status", 2, conn, server);
47 static void server_reconnect_add(SERVER_CONNECT_REC *conn,
52 g_return_if_fail(IS_SERVER_CONNECT(conn));
54 rec = g_new(RECONNECT_REC, 1);
55 rec->tag = ++last_reconnect_tag;
57 rec->next_connect = next_connect;
59 reconnects = g_slist_append(reconnects, rec);
62 void server_reconnect_destroy(RECONNECT_REC *rec, int free_conn)
64 g_return_if_fail(rec != NULL);
66 reconnects = g_slist_remove(reconnects, rec);
68 signal_emit("server reconnect remove", 1, rec);
69 if (free_conn) server_connect_free(rec->conn);
72 if (reconnects == NULL)
73 last_reconnect_tag = 0;
76 static int server_reconnect_timeout(void)
78 SERVER_CONNECT_REC *conn;
82 /* If server_connect() removes the next reconnection in queue,
83 we're screwed. I don't think this should happen anymore, but just
84 to be sure we don't crash, do this safely. */
85 list = g_slist_copy(reconnects);
87 for (tmp = list; tmp != NULL; tmp = tmp->next) {
88 RECONNECT_REC *rec = tmp->data;
90 if (g_slist_find(reconnects, rec) == NULL)
93 if (rec->next_connect <= now) {
95 server_reconnect_destroy(rec, FALSE);
96 CHAT_PROTOCOL(conn)->server_connect(conn);
104 static void sserver_connect(SERVER_SETUP_REC *rec, SERVER_CONNECT_REC *conn)
106 conn->family = rec->family;
107 conn->address = g_strdup(rec->address);
108 if (conn->port == 0) conn->port = rec->port;
110 server_setup_fill_reconn(conn, rec);
111 if (rec->last_connect > time(NULL)-reconnect_time) {
112 /* can't reconnect this fast, wait.. */
113 server_reconnect_add(conn, rec->last_connect+reconnect_time);
115 /* connect to server.. */
116 CHAT_PROTOCOL(conn)->server_connect(conn);
120 static SERVER_CONNECT_REC *
121 server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
123 SERVER_CONNECT_REC *dest;
126 signal_emit("server connect copy", 2, &dest, src);
127 g_return_val_if_fail(dest != NULL, NULL);
129 dest->type = module_get_uniq_id("SERVER CONNECT", 0);
130 dest->reconnection = src->reconnection;
131 dest->proxy = g_strdup(src->proxy);
132 dest->proxy_port = src->proxy_port;
133 dest->proxy_string = g_strdup(src->proxy_string);
134 dest->proxy_password = g_strdup(src->proxy_password);
137 dest->family = src->family;
138 dest->address = g_strdup(src->address);
139 dest->port = src->port;
140 dest->password = g_strdup(src->password);
143 dest->chatnet = g_strdup(src->chatnet);
144 dest->nick = g_strdup(src->nick);
145 dest->username = g_strdup(src->username);
146 dest->realname = g_strdup(src->realname);
148 if (src->own_ip4 != NULL) {
149 dest->own_ip4 = g_new(IPADDR, 1);
150 memcpy(dest->own_ip4, src->own_ip4, sizeof(IPADDR));
152 if (src->own_ip6 != NULL) {
153 dest->own_ip6 = g_new(IPADDR, 1);
154 memcpy(dest->own_ip6, src->own_ip6, sizeof(IPADDR));
157 dest->channels = g_strdup(src->channels);
158 dest->away_reason = g_strdup(src->away_reason);
163 #define server_should_reconnect(server) \
164 ((server)->connection_lost && ((server)->connrec->chatnet != NULL || \
165 (!(server)->banned && !(server)->dns_error)))
167 #define sserver_connect_ok(rec, net) \
168 (!(rec)->banned && !(rec)->dns_error && (rec)->chatnet != NULL && \
169 g_strcasecmp((rec)->chatnet, (net)) == 0)
171 static void sig_reconnect(SERVER_REC *server)
173 SERVER_CONNECT_REC *conn;
174 SERVER_SETUP_REC *sserver;
176 int use_next, through;
179 g_return_if_fail(IS_SERVER(server));
181 if (reconnect_time == -1 || !server_should_reconnect(server))
184 conn = server_connect_copy_skeleton(server->connrec, FALSE);
185 g_return_if_fail(conn != NULL);
187 /* save the server status */
188 if (server->connected) {
189 conn->reconnection = TRUE;
191 reconnect_save_status(conn, server);
194 sserver = server_setup_find(server->connrec->address,
195 server->connrec->port);
197 if (sserver != NULL) {
198 /* save the last connection time/status */
199 sserver->last_connect = server->connect_time == 0 ?
200 time(NULL) : server->connect_time;
201 sserver->last_failed = !server->connected;
202 if (server->banned) sserver->banned = TRUE;
203 if (server->dns_error) sserver->dns_error = TRUE;
206 if (sserver == NULL || conn->chatnet == NULL) {
207 /* not in any chatnet, just reconnect back to same server */
208 conn->family = server->connrec->family;
209 conn->address = g_strdup(server->connrec->address);
210 conn->port = server->connrec->port;
211 conn->password = g_strdup(server->connrec->password);
213 if (server->connect_time != 0 &&
214 time(NULL)-server->connect_time > reconnect_time) {
215 /* there's been enough time since last connection,
216 reconnect back immediately */
217 CHAT_PROTOCOL(conn)->server_connect(conn);
219 /* reconnect later.. */
220 server_reconnect_add(conn, (server->connect_time == 0 ? time(NULL) :
221 server->connect_time) + reconnect_time);
226 /* always try to first connect to the first on the list where we
227 haven't got unsuccessful connection attempts for the last half
231 for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
232 SERVER_SETUP_REC *rec = tmp->data;
234 if (sserver_connect_ok(rec, conn->chatnet) &&
235 (!rec->last_connect || !rec->last_failed ||
236 rec->last_connect < now-FAILED_RECONNECT_WAIT)) {
238 conn->port = server->connrec->port;
239 sserver_connect(rec, conn);
244 /* just try the next server in list */
245 use_next = through = FALSE;
246 for (tmp = setupservers; tmp != NULL; ) {
247 SERVER_SETUP_REC *rec = tmp->data;
249 if (!use_next && server->connrec->port == rec->port &&
250 g_strcasecmp(rec->address, server->connrec->address) == 0)
252 else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
254 conn->port = server->connrec->port;
255 sserver_connect(rec, conn);
259 if (tmp->next != NULL) {
265 /* shouldn't happen unless there's no servers in
266 this chatnet in setup.. */
267 server_connect_free(conn);
272 use_next = through = TRUE;
276 static void sig_connected(SERVER_REC *server)
278 g_return_if_fail(IS_SERVER(server));
279 if (!server->connrec->reconnection)
282 if (server->connrec->channels != NULL)
283 server->channels_join(server, server->connrec->channels, TRUE);
286 /* Remove all servers from reconnect list */
287 /* SYNTAX: RMRECONNS */
288 static void cmd_rmreconns(void)
290 while (reconnects != NULL)
291 server_reconnect_destroy(reconnects->data, TRUE);
294 static RECONNECT_REC *reconnect_find_tag(int tag)
298 for (tmp = reconnects; tmp != NULL; tmp = tmp->next) {
299 RECONNECT_REC *rec = tmp->data;
308 static void reconnect_all(void)
311 SERVER_CONNECT_REC *conn;
314 /* first move reconnects to another list so if server_connect()
315 fails and goes to reconnection list again, we won't get stuck
318 while (reconnects != NULL) {
319 rec = reconnects->data;
321 list = g_slist_append(list, rec->conn);
322 server_reconnect_destroy(rec, FALSE);
326 while (list != NULL) {
329 CHAT_PROTOCOL(conn)->server_connect(conn);
330 list = g_slist_remove(list, conn);
334 /* SYNTAX: RECONNECT <tag> */
335 static void cmd_reconnect(const char *data, SERVER_REC *server)
337 SERVER_CONNECT_REC *conn;
341 if (*data == '\0' && server != NULL) {
342 /* reconnect back to same server */
343 conn = server_connect_copy_skeleton(server->connrec, TRUE);
345 if (server->connected) {
346 reconnect_save_status(conn, server);
347 signal_emit("command disconnect", 2,
348 "* Reconnecting", server);
351 conn->reconnection = TRUE;
352 CHAT_PROTOCOL(conn)->server_connect(conn);
356 if (g_strcasecmp(data, "all") == 0) {
357 /* reconnect all servers in reconnect queue */
363 /* reconnect to first server in reconnection list */
364 if (reconnects == NULL)
365 cmd_return_error(CMDERR_NOT_CONNECTED);
366 rec = reconnects->data;
368 if (g_strncasecmp(data, "RECON-", 6) == 0)
372 rec = tag <= 0 ? NULL : reconnect_find_tag(tag);
375 signal_emit("server reconnect not found", 1, data);
381 server_reconnect_destroy(rec, FALSE);
382 CHAT_PROTOCOL(conn)->server_connect(conn);
385 static void cmd_disconnect(const char *data, SERVER_REC *server)
390 if (g_strncasecmp(data, "RECON-", 6) != 0)
391 return; /* handle only reconnection removing */
393 rec = sscanf(data+6, "%d", &tag) == 1 && tag > 0 ?
394 reconnect_find_tag(tag) : NULL;
397 signal_emit("server reconnect not found", 1, data);
399 server_reconnect_destroy(rec, TRUE);
403 static void sig_chat_protocol_deinit(CHAT_PROTOCOL_REC *proto)
407 for (tmp = reconnects; tmp != NULL; tmp = next) {
408 RECONNECT_REC *rec = tmp->data;
411 if (rec->conn->chat_type == proto->id)
412 server_reconnect_destroy(rec, TRUE);
416 static void read_settings(void)
418 reconnect_time = settings_get_int("server_reconnect_time");
421 void servers_reconnect_init(void)
423 settings_add_int("server", "server_reconnect_time", 300);
426 last_reconnect_tag = 0;
428 reconnect_timeout_tag = g_timeout_add(1000, (GSourceFunc) server_reconnect_timeout, NULL);
431 signal_add("server connect failed", (SIGNAL_FUNC) sig_reconnect);
432 signal_add("server disconnected", (SIGNAL_FUNC) sig_reconnect);
433 signal_add("event connected", (SIGNAL_FUNC) sig_connected);
434 signal_add("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
435 signal_add("setup changed", (SIGNAL_FUNC) read_settings);
437 command_bind("rmreconns", NULL, (SIGNAL_FUNC) cmd_rmreconns);
438 command_bind("reconnect", NULL, (SIGNAL_FUNC) cmd_reconnect);
439 command_bind_first("disconnect", NULL, (SIGNAL_FUNC) cmd_disconnect);
442 void servers_reconnect_deinit(void)
444 g_source_remove(reconnect_timeout_tag);
446 signal_remove("server connect failed", (SIGNAL_FUNC) sig_reconnect);
447 signal_remove("server disconnected", (SIGNAL_FUNC) sig_reconnect);
448 signal_remove("event connected", (SIGNAL_FUNC) sig_connected);
449 signal_remove("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
450 signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
452 command_unbind("rmreconns", (SIGNAL_FUNC) cmd_rmreconns);
453 command_unbind("reconnect", (SIGNAL_FUNC) cmd_reconnect);
454 command_unbind("disconnect", (SIGNAL_FUNC) cmd_disconnect);