+++ /dev/null
-/*
- servers-reconnect.c : irssi
-
- Copyright (C) 1999-2000 Timo Sirainen
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include "module.h"
-#include "commands.h"
-#include "network.h"
-#include "signals.h"
-
-#include "chat-protocols.h"
-#include "servers.h"
-#include "servers-setup.h"
-#include "servers-reconnect.h"
-
-#include "settings.h"
-
-GSList *reconnects;
-static int last_reconnect_tag;
-static int reconnect_timeout_tag;
-static int reconnect_time;
-static int connect_timeout;
-
-void reconnect_save_status(SERVER_CONNECT_REC *conn, SERVER_REC *server)
-{
- g_free_not_null(conn->tag);
- conn->tag = g_strdup(server->tag);
-
- g_free_not_null(conn->away_reason);
- conn->away_reason = !server->usermode_away ? NULL :
- g_strdup(server->away_reason);
-
- if (!server->connected) {
- /* default to channels/usermode from connect record
- since server isn't fully connected yet */
- g_free_not_null(conn->channels);
- conn->channels = server->connrec->no_autojoin_channels ? NULL :
- g_strdup(server->connrec->channels);
-
- g_free_not_null(conn->channels);
- conn->channels = g_strdup(server->connrec->channels);
- }
-
- signal_emit("server reconnect save status", 2, conn, server);
-}
-
-static void server_reconnect_add(SERVER_CONNECT_REC *conn,
- time_t next_connect)
-{
- RECONNECT_REC *rec;
-
- g_return_if_fail(IS_SERVER_CONNECT(conn));
-
- rec = g_new(RECONNECT_REC, 1);
- rec->tag = ++last_reconnect_tag;
- rec->next_connect = next_connect;
-
- rec->conn = conn;
- conn->reconnecting = TRUE;
- server_connect_ref(conn);
-
- reconnects = g_slist_append(reconnects, rec);
-}
-
-void server_reconnect_destroy(RECONNECT_REC *rec)
-{
- g_return_if_fail(rec != NULL);
-
- reconnects = g_slist_remove(reconnects, rec);
-
- signal_emit("server reconnect remove", 1, rec);
- server_connect_unref(rec->conn);
- g_free(rec);
-
- if (reconnects == NULL)
- last_reconnect_tag = 0;
-}
-
-static int server_reconnect_timeout(void)
-{
- SERVER_CONNECT_REC *conn;
- GSList *list, *tmp, *next;
- time_t now;
-
- now = time(NULL);
-
- /* timeout any connections that haven't gotten to connected-stage */
- for (tmp = servers; tmp != NULL; tmp = next) {
- SERVER_REC *server = tmp->data;
-
- next = tmp->next;
- if (!server->connected &&
- server->connect_time + connect_timeout < now &&
- connect_timeout > 0) {
- server->connection_lost = TRUE;
- server_disconnect(server);
- }
- }
-
- /* If server_connect() removes the next reconnection in queue,
- we're screwed. I don't think this should happen anymore, but just
- to be sure we don't crash, do this safely. */
- list = g_slist_copy(reconnects);
- for (tmp = list; tmp != NULL; tmp = tmp->next) {
- RECONNECT_REC *rec = tmp->data;
-
- if (g_slist_find(reconnects, rec) == NULL)
- continue;
-
- if (rec->next_connect <= now) {
- conn = rec->conn;
- server_connect_ref(conn);
- server_reconnect_destroy(rec);
- server_connect(conn);
- server_connect_unref(conn);
- }
- }
-
- g_slist_free(list);
- return 1;
-}
-
-static void sserver_connect(SERVER_SETUP_REC *rec, SERVER_CONNECT_REC *conn)
-{
- conn->family = rec->family;
- conn->address = g_strdup(rec->address);
- if (conn->port == 0) conn->port = rec->port;
-
- server_setup_fill_reconn(conn, rec);
- server_reconnect_add(conn, rec->last_connect+reconnect_time);
- server_connect_unref(conn);
-}
-
-static SERVER_CONNECT_REC *
-server_connect_copy_skeleton(SERVER_CONNECT_REC *src, int connect_info)
-{
- SERVER_CONNECT_REC *dest;
-
- dest = NULL;
- signal_emit("server connect copy", 2, &dest, src);
- g_return_val_if_fail(dest != NULL, NULL);
-
- server_connect_ref(dest);
- dest->type = module_get_uniq_id("SERVER CONNECT", 0);
- dest->reconnection = src->reconnection;
- dest->proxy = g_strdup(src->proxy);
- dest->proxy_port = src->proxy_port;
- dest->proxy_string = g_strdup(src->proxy_string);
- dest->proxy_string_after = g_strdup(src->proxy_string_after);
- dest->proxy_password = g_strdup(src->proxy_password);
-
- dest->tag = g_strdup(src->tag);
-
- if (connect_info) {
- dest->family = src->family;
- dest->address = g_strdup(src->address);
- dest->port = src->port;
- dest->password = g_strdup(src->password);
- }
-
- dest->chatnet = g_strdup(src->chatnet);
- dest->nick = g_strdup(src->nick);
- dest->username = g_strdup(src->username);
- dest->realname = g_strdup(src->realname);
-
- if (src->own_ip4 != NULL) {
- dest->own_ip4 = g_new(IPADDR, 1);
- memcpy(dest->own_ip4, src->own_ip4, sizeof(IPADDR));
- }
- if (src->own_ip6 != NULL) {
- dest->own_ip6 = g_new(IPADDR, 1);
- memcpy(dest->own_ip6, src->own_ip6, sizeof(IPADDR));
- }
-
- dest->channels = g_strdup(src->channels);
- dest->away_reason = g_strdup(src->away_reason);
- dest->no_autojoin_channels = src->no_autojoin_channels;
-
- dest->use_ssl = src->use_ssl;
- dest->ssl_cert = g_strdup(src->ssl_cert);
- dest->ssl_pkey = g_strdup(src->ssl_pkey);
- dest->ssl_verify = src->ssl_verify;
- dest->ssl_cafile = g_strdup(src->ssl_cafile);
- dest->ssl_capath = g_strdup(src->ssl_capath);
-
- return dest;
-}
-
-#define server_should_reconnect(server) \
- ((server)->connection_lost && !(server)->no_reconnect && \
- ((server)->connrec->chatnet != NULL || \
- (!(server)->banned && !(server)->dns_error)))
-
-#define sserver_connect_ok(rec, net) \
- (!(rec)->banned && !(rec)->dns_error && (rec)->chatnet != NULL && \
- g_strcasecmp((rec)->chatnet, (net)) == 0)
-
-static void sig_reconnect(SERVER_REC *server)
-{
- SERVER_CONNECT_REC *conn;
- SERVER_SETUP_REC *sserver;
- GSList *tmp;
- int use_next, through;
- time_t now;
-
- g_return_if_fail(IS_SERVER(server));
-
- if (reconnect_time == -1 || !server_should_reconnect(server))
- return;
-
- conn = server_connect_copy_skeleton(server->connrec, FALSE);
- g_return_if_fail(conn != NULL);
-
- /* save the server status */
- if (server->connected) {
- conn->reconnection = TRUE;
-
- reconnect_save_status(conn, server);
- }
-
- sserver = server_setup_find(server->connrec->address,
- server->connrec->port,
- server->connrec->chatnet);
-
- if (sserver != NULL) {
- /* save the last connection time/status */
- sserver->last_connect = server->connect_time == 0 ?
- time(NULL) : server->connect_time;
- sserver->last_failed = !server->connected;
- sserver->banned = server->banned;
- sserver->dns_error = server->dns_error;
- }
-
- if (sserver == NULL || conn->chatnet == NULL) {
- /* not in any chatnet, just reconnect back to same server */
- conn->family = server->connrec->family;
- conn->address = g_strdup(server->connrec->address);
- conn->port = server->connrec->port;
- conn->password = g_strdup(server->connrec->password);
-
- server_reconnect_add(conn, (server->connect_time == 0 ? time(NULL) :
- server->connect_time) + reconnect_time);
- server_connect_unref(conn);
- return;
- }
-
- /* always try to first connect to the first on the list where we
- haven't got unsuccessful connection attempts for the past half
- an hour. */
-
- now = time(NULL);
- for (tmp = setupservers; tmp != NULL; tmp = tmp->next) {
- SERVER_SETUP_REC *rec = tmp->data;
-
- if (sserver_connect_ok(rec, conn->chatnet) &&
- (!rec->last_connect || !rec->last_failed ||
- rec->last_connect < now-FAILED_RECONNECT_WAIT)) {
- if (rec == sserver)
- conn->port = server->connrec->port;
- sserver_connect(rec, conn);
- return;
- }
- }
-
- /* just try the next server in list */
- use_next = through = FALSE;
- for (tmp = setupservers; tmp != NULL; ) {
- SERVER_SETUP_REC *rec = tmp->data;
-
- if (!use_next && server->connrec->port == rec->port &&
- g_strcasecmp(rec->address, server->connrec->address) == 0)
- use_next = TRUE;
- else if (use_next && sserver_connect_ok(rec, conn->chatnet)) {
- if (rec == sserver)
- conn->port = server->connrec->port;
- sserver_connect(rec, conn);
- break;
- }
-
- if (tmp->next != NULL) {
- tmp = tmp->next;
- continue;
- }
-
- if (through) {
- /* shouldn't happen unless there's no servers in
- this chatnet in setup.. */
- server_connect_unref(conn);
- break;
- }
-
- tmp = setupservers;
- use_next = through = TRUE;
- }
-}
-
-static void sig_connected(SERVER_REC *server)
-{
- g_return_if_fail(IS_SERVER(server));
- if (!server->connrec->reconnection)
- return;
-
- if (server->connrec->channels != NULL)
- server->channels_join(server, server->connrec->channels, TRUE);
-}
-
-/* Remove all servers from reconnect list */
-/* SYNTAX: RMRECONNS */
-static void cmd_rmreconns(void)
-{
- while (reconnects != NULL)
- server_reconnect_destroy(reconnects->data);
-}
-
-static RECONNECT_REC *reconnect_find_tag(int tag)
-{
- GSList *tmp;
-
- for (tmp = reconnects; tmp != NULL; tmp = tmp->next) {
- RECONNECT_REC *rec = tmp->data;
-
- if (rec->tag == tag)
- return rec;
- }
-
- return NULL;
-}
-
-static void reconnect_all(void)
-{
- GSList *list;
- SERVER_CONNECT_REC *conn;
- RECONNECT_REC *rec;
-
- /* first move reconnects to another list so if server_connect()
- fails and goes to reconnection list again, we won't get stuck
- here forever */
- list = NULL;
- while (reconnects != NULL) {
- rec = reconnects->data;
-
- list = g_slist_append(list, rec->conn);
- server_connect_ref(rec->conn);
- server_reconnect_destroy(rec);
- }
-
-
- while (list != NULL) {
- conn = list->data;
-
- server_connect(conn);
- server_connect_unref(conn);
- list = g_slist_remove(list, conn);
- }
-}
-
-/* SYNTAX: RECONNECT <tag> [<quit message>] */
-static void cmd_reconnect(const char *data, SERVER_REC *server)
-{
- SERVER_CONNECT_REC *conn;
- RECONNECT_REC *rec;
- char *tag, *msg;
- void *free_arg;
- int tagnum;
-
- if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_GETREST, &tag, &msg))
- return;
-
- if (*tag != '\0' && strcmp(tag, "*") != 0)
- server = server_find_tag(tag);
-
- if (server != NULL) {
- /* reconnect connected server */
- conn = server_connect_copy_skeleton(server->connrec, TRUE);
-
- if (server->connected)
- reconnect_save_status(conn, server);
-
- msg = g_strconcat("* ", *msg == '\0' ?
- "Reconnecting" : msg, NULL);
- signal_emit("command disconnect", 2, msg, server);
- g_free(msg);
-
- conn->reconnection = TRUE;
- server_connect(conn);
- server_connect_unref(conn);
- cmd_params_free(free_arg);
- return;
- }
-
- if (g_strcasecmp(tag, "all") == 0) {
- /* reconnect all servers in reconnect queue */
- reconnect_all();
- cmd_params_free(free_arg);
- return;
- }
-
- if (*data == '\0') {
- /* reconnect to first server in reconnection list */
- if (reconnects == NULL)
- cmd_param_error(CMDERR_NOT_CONNECTED);
- rec = reconnects->data;
- } else {
- if (g_strncasecmp(data, "RECON-", 6) == 0)
- data += 6;
-
- tagnum = atoi(tag);
- rec = tagnum <= 0 ? NULL : reconnect_find_tag(tagnum);
- }
-
- if (rec == NULL) {
- signal_emit("server reconnect not found", 1, data);
- } else {
- conn = rec->conn;
- server_connect_ref(conn);
- server_reconnect_destroy(rec);
- server_connect(conn);
- server_connect_unref(conn);
- }
-
- cmd_params_free(free_arg);
-}
-
-static void cmd_disconnect(const char *data, SERVER_REC *server)
-{
- RECONNECT_REC *rec;
-
- if (g_strncasecmp(data, "RECON-", 6) != 0)
- return; /* handle only reconnection removing */
-
- rec = reconnect_find_tag(atoi(data+6));
-
- if (rec == NULL)
- signal_emit("server reconnect not found", 1, data);
- else
- server_reconnect_destroy(rec);
- signal_stop();
-}
-
-static void sig_chat_protocol_deinit(CHAT_PROTOCOL_REC *proto)
-{
- GSList *tmp, *next;
-
- for (tmp = reconnects; tmp != NULL; tmp = next) {
- RECONNECT_REC *rec = tmp->data;
-
- next = tmp->next;
- if (rec->conn->chat_type == proto->id)
- server_reconnect_destroy(rec);
- }
-}
-
-static void read_settings(void)
-{
- reconnect_time = settings_get_time("server_reconnect_time")/1000;
- connect_timeout = settings_get_time("server_connect_timeout")/1000;
-}
-
-void servers_reconnect_init(void)
-{
- settings_add_time("server", "server_reconnect_time", "5min");
- settings_add_time("server", "server_connect_timeout", "5min");
-
- reconnects = NULL;
- last_reconnect_tag = 0;
-
- reconnect_timeout_tag = g_timeout_add(1000, (GSourceFunc) server_reconnect_timeout, NULL);
- read_settings();
-
- signal_add("server connect failed", (SIGNAL_FUNC) sig_reconnect);
- signal_add("server disconnected", (SIGNAL_FUNC) sig_reconnect);
- signal_add("event connected", (SIGNAL_FUNC) sig_connected);
- signal_add("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
- signal_add("setup changed", (SIGNAL_FUNC) read_settings);
-
- command_bind("rmreconns", NULL, (SIGNAL_FUNC) cmd_rmreconns);
- command_bind("reconnect", NULL, (SIGNAL_FUNC) cmd_reconnect);
- command_bind_first("disconnect", NULL, (SIGNAL_FUNC) cmd_disconnect);
-}
-
-void servers_reconnect_deinit(void)
-{
- g_source_remove(reconnect_timeout_tag);
-
- signal_remove("server connect failed", (SIGNAL_FUNC) sig_reconnect);
- signal_remove("server disconnected", (SIGNAL_FUNC) sig_reconnect);
- signal_remove("event connected", (SIGNAL_FUNC) sig_connected);
- signal_remove("chat protocol deinit", (SIGNAL_FUNC) sig_chat_protocol_deinit);
- signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
-
- command_unbind("rmreconns", (SIGNAL_FUNC) cmd_rmreconns);
- command_unbind("reconnect", (SIGNAL_FUNC) cmd_reconnect);
- command_unbind("disconnect", (SIGNAL_FUNC) cmd_disconnect);
-}
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