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/*
irc-session.c : irssi
Copyright (C) 2001 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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "module.h"
#include <irssi/src/core/signals.h>
#include <irssi/src/core/net-sendbuffer.h>
#include <irssi/src/lib-config/iconfig.h>
#include <irssi/src/core/misc.h>
#include <irssi/src/core/network.h>
#include <irssi/src/irc/core/irc-servers.h>
#include <irssi/src/irc/core/irc-servers-setup.h>
#include <irssi/src/irc/core/irc-channels.h>
#include <irssi/src/irc/core/irc-nicklist.h>
#include <irssi/src/irc/core/sasl.h>
struct _isupport_data { CONFIG_REC *config; CONFIG_NODE *node; };
static void session_isupport_foreach(char *key, char *value, struct _isupport_data *data)
{
config_node_set_str(data->config, data->node, key, value);
}
static void sig_session_save_server(IRC_SERVER_REC *server, CONFIG_REC *config,
CONFIG_NODE *node)
{
GSList *tmp;
CONFIG_NODE *isupport;
struct _isupport_data isupport_data;
int tls_disconnect;
if (!IS_IRC_SERVER(server))
return;
/* send all non-redirected commands to server immediately */
for (tmp = server->cmdqueue; tmp != NULL; tmp = tmp->next->next) {
const char *cmd = tmp->data;
void *redirect = tmp->next->data;
if (redirect == NULL) {
if (net_sendbuffer_send(server->handle, cmd,
strlen(cmd)) == -1)
break;
}
}
/* we cannot upgrade TLS (yet?) */
tls_disconnect = server->connrec->use_tls || server->connrec->starttls;
if (tls_disconnect) {
config_node_set_str(config, node, "rejoin_channels",
irc_server_get_channels(server, REJOIN_CHANNELS_MODE_ON));
irc_send_cmd_now(server, "QUIT :[TLS] Client upgrade");
}
net_sendbuffer_flush(server->handle);
config_node_set_str(config, node, "real_address", server->real_address);
config_node_set_str(config, node, "userhost", server->userhost);
config_node_set_str(config, node, "usermode", server->usermode);
config_node_set_bool(config, node, "usermode_away", server->usermode_away);
config_node_set_str(config, node, "away_reason", server->away_reason);
config_node_set_bool(config, node, "emode_known", server->emode_known);
config_node_set_int(config, node, "sasl_mechanism", server->connrec->sasl_mechanism);
config_node_set_str(config, node, "sasl_username", server->connrec->sasl_username);
config_node_set_str(config, node, "sasl_password", server->connrec->sasl_password);
config_node_set_int(config, node, "starttls",
server->connrec->disallow_starttls ? STARTTLS_DISALLOW :
server->connrec->starttls ? STARTTLS_ENABLED :
STARTTLS_NOTSET);
config_node_set_bool(config, node, "no_cap", server->connrec->no_cap);
config_node_set_bool(config, node, "isupport_sent", server->isupport_sent);
isupport = config_node_section(config, node, "isupport", NODE_TYPE_BLOCK);
isupport_data.config = config;
isupport_data.node = isupport;
g_hash_table_foreach(server->isupport, (GHFunc) session_isupport_foreach, &isupport_data);
/* we have to defer the disconnect to irc_server_connect */
}
static void sig_session_restore_server(IRC_SERVER_REC *server,
CONFIG_NODE *node)
{
GSList *tmp;
int starttls_mode;
if (!IS_IRC_SERVER(server))
return;
if (server->real_address == NULL)
server->real_address = g_strdup(config_node_get_str(node, "real_address", NULL));
server->userhost = g_strdup(config_node_get_str(node, "userhost", NULL));
server->usermode = g_strdup(config_node_get_str(node, "usermode", NULL));
server->usermode_away = config_node_get_bool(node, "usermode_away", FALSE);
server->away_reason = g_strdup(config_node_get_str(node, "away_reason", NULL));
server->emode_known = config_node_get_bool(node, "emode_known", FALSE);
server->isupport_sent = config_node_get_bool(node, "isupport_sent", FALSE);
server->connrec->no_cap = config_node_get_bool(node, "no_cap", FALSE);
server->connrec->sasl_mechanism = config_node_get_int(node, "sasl_mechanism", SASL_MECHANISM_NONE);
/* The fields below might have been filled when loading the chatnet
* description from the config and we favor the content that's been saved
* in the session file over that. */
g_free(server->connrec->sasl_username);
server->connrec->sasl_username = g_strdup(config_node_get_str(node, "sasl_username", NULL));
g_free(server->connrec->sasl_password);
server->connrec->sasl_password = g_strdup(config_node_get_str(node, "sasl_password", NULL));
server->connrec->channels = g_strdup(config_node_get_str(node, "rejoin_channels", NULL));
starttls_mode = config_node_get_int(node, "starttls", STARTTLS_NOTSET);
if (starttls_mode == STARTTLS_DISALLOW)
server->connrec->disallow_starttls = 1;
if (starttls_mode == STARTTLS_ENABLED) {
server->connrec->starttls = 1;
server->connrec->use_tls = 0;
}
if (server->isupport == NULL) {
server->isupport =
g_hash_table_new((GHashFunc) i_istr_hash, (GCompareFunc) i_istr_equal);
}
node = config_node_section(NULL, node, "isupport", -1);
tmp = node == NULL ? NULL : config_node_first(node->value);
for (; tmp != NULL; tmp = config_node_next(tmp)) {
node = tmp->data;
if (node == NULL)
break;
g_hash_table_insert(server->isupport, g_strdup(node->key),
g_strdup(node->value));
}
irc_server_init_isupport(server);
/* we will reconnect in irc_server_connect if the connection was TLS */
}
static void sig_session_restore_nick(IRC_CHANNEL_REC *channel,
CONFIG_NODE *node)
{
const char *nick, *prefixes;
int op, halfop, voice;
char newprefixes[MAX_USER_PREFIXES + 1];
int i;
if (!IS_IRC_CHANNEL(channel))
return;
nick = config_node_get_str(node, "nick", NULL);
if (nick == NULL)
return;
op = config_node_get_bool(node, "op", FALSE);
voice = config_node_get_bool(node, "voice", FALSE);
halfop = config_node_get_bool(node, "halfop", FALSE);
prefixes = config_node_get_str(node, "prefixes", NULL);
if (prefixes == NULL || *prefixes == '\0') {
/* upgrading from old irssi or from an in-between
* version that did not imply non-present prefixes from
* op/voice/halfop, restore prefixes
*/
i = 0;
if (op)
newprefixes[i++] = '@';
if (halfop)
newprefixes[i++] = '%';
if (voice)
newprefixes[i++] = '+';
newprefixes[i] = '\0';
prefixes = newprefixes;
}
irc_nicklist_insert(channel, nick, op, halfop, voice, FALSE, prefixes);
}
static void session_restore_channel(IRC_CHANNEL_REC *channel)
{
char *data;
signal_emit("event join", 4, channel->server, channel->name,
channel->server->nick, channel->server->userhost);
data = g_strconcat(channel->server->nick, " ", channel->name, NULL);
signal_emit("event 366", 2, channel->server, data);
g_free(data);
}
static void sig_connected(IRC_SERVER_REC *server)
{
GSList *tmp;
char *str, *addr;
if (!IS_IRC_SERVER(server) || !server->session_reconnect)
return;
str = g_strdup_printf("%s :Restoring connection to %s",
server->nick, server->connrec->address);
/* addr needs to be strdup'd because the event_connected() handler
free()'s the server->real_address and then tries to strdup() the
given origin again */
addr = g_strdup(server->real_address);
signal_emit("event 001", 3, server, str, addr);
g_free(addr);
g_free(str);
for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
IRC_CHANNEL_REC *rec = tmp->data;
if (rec->session_rejoin)
session_restore_channel(rec);
}
}
void irc_session_init(void)
{
signal_add("session save server", (SIGNAL_FUNC) sig_session_save_server);
signal_add("session restore server", (SIGNAL_FUNC) sig_session_restore_server);
signal_add("session restore nick", (SIGNAL_FUNC) sig_session_restore_nick);
signal_add("server connected", (SIGNAL_FUNC) sig_connected);
}
void irc_session_deinit(void)
{
signal_remove("session save server", (SIGNAL_FUNC) sig_session_save_server);
signal_remove("session restore server", (SIGNAL_FUNC) sig_session_restore_server);
signal_remove("session restore nick", (SIGNAL_FUNC) sig_session_restore_nick);
signal_remove("server connected", (SIGNAL_FUNC) sig_connected);
}
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