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https://github.com/irssi/irssi.git
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means irssi stopped reconnecting to those servers forever if they occured once. git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2910 dbcabf3a-b0e7-0310-adc4-f8d773084564
461 lines
12 KiB
C
461 lines
12 KiB
C
/*
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servers-reconnect.c : irssi
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Copyright (C) 1999-2000 Timo Sirainen
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "module.h"
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#include "commands.h"
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#include "network.h"
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#include "signals.h"
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#include "chat-protocols.h"
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#include "servers.h"
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#include "servers-setup.h"
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#include "servers-reconnect.h"
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#include "settings.h"
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GSList *reconnects;
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static int last_reconnect_tag;
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static int reconnect_timeout_tag;
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static int reconnect_time;
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void reconnect_save_status(SERVER_CONNECT_REC *conn, SERVER_REC *server)
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{
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g_free_not_null(conn->tag);
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conn->tag = g_strdup(server->tag);
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g_free_not_null(conn->away_reason);
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conn->away_reason = !server->usermode_away ? NULL :
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g_strdup(server->away_reason);
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signal_emit("server reconnect save status", 2, conn, server);
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}
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static void server_reconnect_add(SERVER_CONNECT_REC *conn,
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time_t next_connect)
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{
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RECONNECT_REC *rec;
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g_return_if_fail(IS_SERVER_CONNECT(conn));
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rec = g_new(RECONNECT_REC, 1);
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rec->tag = ++last_reconnect_tag;
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rec->next_connect = next_connect;
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rec->conn = conn;
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server_connect_ref(conn);
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reconnects = g_slist_append(reconnects, rec);
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}
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void server_reconnect_destroy(RECONNECT_REC *rec)
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{
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g_return_if_fail(rec != NULL);
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reconnects = g_slist_remove(reconnects, rec);
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signal_emit("server reconnect remove", 1, rec);
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server_connect_unref(rec->conn);
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g_free(rec);
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if (reconnects == NULL)
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last_reconnect_tag = 0;
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}
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static int server_reconnect_timeout(void)
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{
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SERVER_CONNECT_REC *conn;
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GSList *list, *tmp;
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time_t now;
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/* If server_connect() removes the next reconnection in queue,
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we're screwed. I don't think this should happen anymore, but just
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to be sure we don't crash, do this safely. */
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list = g_slist_copy(reconnects);
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now = time(NULL);
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for (tmp = list; tmp != NULL; tmp = tmp->next) {
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RECONNECT_REC *rec = tmp->data;
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if (g_slist_find(reconnects, rec) == NULL)
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continue;
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if (rec->next_connect <= now) {
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conn = rec->conn;
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server_connect_ref(conn);
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server_reconnect_destroy(rec);
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server_connect(conn);
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server_connect_unref(conn);
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}
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}
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g_slist_free(list);
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return 1;
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}
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static void sserver_connect(SERVER_SETUP_REC *rec, SERVER_CONNECT_REC *conn)
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{
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conn->family = rec->family;
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conn->address = g_strdup(rec->address);
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if (conn->port == 0) conn->port = rec->port;
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server_setup_fill_reconn(conn, rec);
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server_reconnect_add(conn, rec->last_connect+reconnect_time);
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server_connect_unref(conn);
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}
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static SERVER_CONNECT_REC *
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server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
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{
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SERVER_CONNECT_REC *dest;
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dest = NULL;
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signal_emit("server connect copy", 2, &dest, src);
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g_return_val_if_fail(dest != NULL, NULL);
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server_connect_ref(dest);
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dest->type = module_get_uniq_id("SERVER CONNECT", 0);
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dest->reconnection = src->reconnection;
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dest->proxy = g_strdup(src->proxy);
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dest->proxy_port = src->proxy_port;
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dest->proxy_string = g_strdup(src->proxy_string);
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dest->proxy_string_after = g_strdup(src->proxy_string_after);
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dest->proxy_password = g_strdup(src->proxy_password);
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dest->tag = g_strdup(src->tag);
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if (connect_info) {
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dest->family = src->family;
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dest->address = g_strdup(src->address);
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dest->port = src->port;
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dest->password = g_strdup(src->password);
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}
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dest->chatnet = g_strdup(src->chatnet);
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dest->nick = g_strdup(src->nick);
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dest->username = g_strdup(src->username);
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dest->realname = g_strdup(src->realname);
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if (src->own_ip4 != NULL) {
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dest->own_ip4 = g_new(IPADDR, 1);
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memcpy(dest->own_ip4, src->own_ip4, sizeof(IPADDR));
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}
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if (src->own_ip6 != NULL) {
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dest->own_ip6 = g_new(IPADDR, 1);
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memcpy(dest->own_ip6, src->own_ip6, sizeof(IPADDR));
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}
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dest->channels = g_strdup(src->channels);
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dest->away_reason = g_strdup(src->away_reason);
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dest->no_autojoin_channels = src->no_autojoin_channels;
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dest->use_ssl = src->use_ssl;
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return dest;
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}
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#define server_should_reconnect(server) \
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((server)->connection_lost && !(server)->no_reconnect && \
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((server)->connrec->chatnet != NULL || \
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(!(server)->banned && !(server)->dns_error)))
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#define sserver_connect_ok(rec, net) \
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(!(rec)->banned && !(rec)->dns_error && (rec)->chatnet != NULL && \
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g_strcasecmp((rec)->chatnet, (net)) == 0)
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static void sig_reconnect(SERVER_REC *server)
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{
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SERVER_CONNECT_REC *conn;
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SERVER_SETUP_REC *sserver;
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GSList *tmp;
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int use_next, through;
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time_t now;
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g_return_if_fail(IS_SERVER(server));
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if (reconnect_time == -1 || !server_should_reconnect(server))
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return;
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conn = server_connect_copy_skeleton(server->connrec, FALSE);
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g_return_if_fail(conn != NULL);
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/* save the server status */
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if (server->connected) {
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conn->reconnection = TRUE;
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reconnect_save_status(conn, server);
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}
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sserver = server_setup_find(server->connrec->address,
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server->connrec->port,
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server->connrec->chatnet);
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if (sserver != NULL) {
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/* save the last connection time/status */
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sserver->last_connect = server->connect_time == 0 ?
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time(NULL) : server->connect_time;
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sserver->last_failed = !server->connected;
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sserver->banned = server->banned;
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sserver->dns_error = server->dns_error;
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}
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if (sserver == NULL || conn->chatnet == NULL) {
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/* not in any chatnet, just reconnect back to same server */
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conn->family = server->connrec->family;
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conn->address = g_strdup(server->connrec->address);
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conn->port = server->connrec->port;
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conn->password = g_strdup(server->connrec->password);
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server_reconnect_add(conn, (server->connect_time == 0 ? time(NULL) :
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server->connect_time) + reconnect_time);
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server_connect_unref(conn);
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return;
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}
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/* always try to first connect to the first on the list where we
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haven't got unsuccessful connection attempts for the past half
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an hour. */
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now = time(NULL);
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for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
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SERVER_SETUP_REC *rec = tmp->data;
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if (sserver_connect_ok(rec, conn->chatnet) &&
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(!rec->last_connect || !rec->last_failed ||
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rec->last_connect < now-FAILED_RECONNECT_WAIT)) {
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if (rec == sserver)
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conn->port = server->connrec->port;
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sserver_connect(rec, conn);
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return;
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}
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}
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/* just try the next server in list */
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use_next = through = FALSE;
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for (tmp = setupservers; tmp != NULL; ) {
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SERVER_SETUP_REC *rec = tmp->data;
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if (!use_next && server->connrec->port == rec->port &&
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g_strcasecmp(rec->address, server->connrec->address) == 0)
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use_next = TRUE;
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else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
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if (rec == sserver)
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conn->port = server->connrec->port;
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sserver_connect(rec, conn);
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break;
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}
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if (tmp->next != NULL) {
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tmp = tmp->next;
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continue;
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}
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if (through) {
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/* shouldn't happen unless there's no servers in
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this chatnet in setup.. */
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server_connect_unref(conn);
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break;
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}
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tmp = setupservers;
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use_next = through = TRUE;
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}
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}
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static void sig_connected(SERVER_REC *server)
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{
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g_return_if_fail(IS_SERVER(server));
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if (!server->connrec->reconnection)
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return;
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if (server->connrec->channels != NULL)
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server->channels_join(server, server->connrec->channels, TRUE);
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}
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/* Remove all servers from reconnect list */
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/* SYNTAX: RMRECONNS */
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static void cmd_rmreconns(void)
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{
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while (reconnects != NULL)
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server_reconnect_destroy(reconnects->data);
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}
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static RECONNECT_REC *reconnect_find_tag(int tag)
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{
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GSList *tmp;
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for (tmp = reconnects; tmp != NULL; tmp = tmp->next) {
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RECONNECT_REC *rec = tmp->data;
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if (rec->tag == tag)
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return rec;
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}
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return NULL;
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}
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static void reconnect_all(void)
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{
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GSList *list;
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SERVER_CONNECT_REC *conn;
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RECONNECT_REC *rec;
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/* first move reconnects to another list so if server_connect()
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fails and goes to reconnection list again, we won't get stuck
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here forever */
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list = NULL;
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while (reconnects != NULL) {
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rec = reconnects->data;
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list = g_slist_append(list, rec->conn);
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server_connect_ref(rec->conn);
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server_reconnect_destroy(rec);
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}
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while (list != NULL) {
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conn = list->data;
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server_connect(conn);
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server_connect_unref(conn);
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list = g_slist_remove(list, conn);
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}
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}
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/* SYNTAX: RECONNECT <tag> */
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static void cmd_reconnect(const char *data, SERVER_REC *server)
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{
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SERVER_CONNECT_REC *conn;
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RECONNECT_REC *rec;
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int tag;
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if (*data == '\0' && server != NULL) {
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/* reconnect back to same server */
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conn = server_connect_copy_skeleton(server->connrec, TRUE);
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if (server->connected)
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reconnect_save_status(conn, server);
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signal_emit("command disconnect", 2, "* Reconnecting", server);
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conn->reconnection = TRUE;
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server_connect(conn);
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server_connect_unref(conn);
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return;
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}
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if (g_strcasecmp(data, "all") == 0) {
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/* reconnect all servers in reconnect queue */
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reconnect_all();
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return;
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}
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if (*data == '\0') {
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/* reconnect to first server in reconnection list */
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if (reconnects == NULL)
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cmd_return_error(CMDERR_NOT_CONNECTED);
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rec = reconnects->data;
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} else {
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if (g_strncasecmp(data, "RECON-", 6) == 0)
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data += 6;
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tag = atoi(data);
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rec = tag <= 0 ? NULL : reconnect_find_tag(tag);
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if (rec == NULL) {
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signal_emit("server reconnect not found", 1, data);
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return;
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}
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}
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conn = rec->conn;
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server_connect_ref(conn);
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server_reconnect_destroy(rec);
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server_connect(conn);
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server_connect_unref(conn);
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}
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static void cmd_disconnect(const char *data, SERVER_REC *server)
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{
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RECONNECT_REC *rec;
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if (g_strncasecmp(data, "RECON-", 6) != 0)
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return; /* handle only reconnection removing */
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rec = reconnect_find_tag(atoi(data+6));
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if (rec == NULL)
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signal_emit("server reconnect not found", 1, data);
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else
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server_reconnect_destroy(rec);
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signal_stop();
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}
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static void sig_chat_protocol_deinit(CHAT_PROTOCOL_REC *proto)
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{
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GSList *tmp, *next;
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for (tmp = reconnects; tmp != NULL; tmp = next) {
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RECONNECT_REC *rec = tmp->data;
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next = tmp->next;
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if (rec->conn->chat_type == proto->id)
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server_reconnect_destroy(rec);
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}
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}
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static void read_settings(void)
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{
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reconnect_time = settings_get_int("server_reconnect_time");
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}
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void servers_reconnect_init(void)
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{
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settings_add_int("server", "server_reconnect_time", 300);
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reconnects = NULL;
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last_reconnect_tag = 0;
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reconnect_timeout_tag = g_timeout_add(1000, (GSourceFunc) server_reconnect_timeout, NULL);
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read_settings();
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signal_add("server connect failed", (SIGNAL_FUNC) sig_reconnect);
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signal_add("server disconnected", (SIGNAL_FUNC) sig_reconnect);
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signal_add("event connected", (SIGNAL_FUNC) sig_connected);
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signal_add("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
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signal_add("setup changed", (SIGNAL_FUNC) read_settings);
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command_bind("rmreconns", NULL, (SIGNAL_FUNC) cmd_rmreconns);
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command_bind("reconnect", NULL, (SIGNAL_FUNC) cmd_reconnect);
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command_bind_first("disconnect", NULL, (SIGNAL_FUNC) cmd_disconnect);
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}
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void servers_reconnect_deinit(void)
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{
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g_source_remove(reconnect_timeout_tag);
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signal_remove("server connect failed", (SIGNAL_FUNC) sig_reconnect);
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signal_remove("server disconnected", (SIGNAL_FUNC) sig_reconnect);
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signal_remove("event connected", (SIGNAL_FUNC) sig_connected);
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signal_remove("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
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signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
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command_unbind("rmreconns", (SIGNAL_FUNC) cmd_rmreconns);
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command_unbind("reconnect", (SIGNAL_FUNC) cmd_reconnect);
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command_unbind("disconnect", (SIGNAL_FUNC) cmd_disconnect);
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}
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