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/*
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "signals.h"
#include "commands.h"
#include "args.h"
#include "net-sendbuffer.h"
#include "lib-config/iconfig.h"
#include "chat-protocols.h"
#include "servers.h"
#include "servers-setup.h"
static char *session_file;
static const char *irssi_binary; /* from argv[0] */
static GIOChannel *next_handle;
void session_set_binary(const char *path)
{
irssi_binary = path;
}
/* SYNTAX: UPGRADE [<irssi binary path>] */
static void cmd_upgrade(const char *data)
{
CONFIG_REC *session;
GSList *file_handles;
const char *args[10];
char *session_file;
int n;
if (*data == '\0')
data = irssi_binary;
/* make sure we can execute it */
if (access(data, X_OK) != 0)
cmd_return_error(CMDERR_ERRNO);
/* save the session */
session_file = g_strdup_printf("%s/session.%d", get_irssi_dir(), getpid());
unlink(session_file);
session = config_open(session_file, 0600);
file_handles = NULL;
signal_emit("session save", 2, session, &file_handles);
config_write(session, NULL, -1);
config_close(session);
/* Cleanup the terminal etc. */
signal_emit("session clean", 0);
/* close the file handles we don't want to transfer to new client */
for (n = 3; n < 256; n++) {
if (g_slist_find(file_handles, GINT_TO_POINTER(n)) == NULL)
close(n);
}
g_slist_free(file_handles),
/* irssi --session ~/.irssi/session.<pid> -! */
args[0] = data;
args[1] = "--session";
args[2] = session_file;
args[3] = "-!";
args[4] = NULL;
execvp(args[0], (char **) args);
fprintf(stderr, "exec: %s: %s\n", args[0], g_strerror(errno));
_exit(-1);
}
static void session_save_server(SERVER_REC *server, CONFIG_REC *config,
CONFIG_NODE *node, GSList **file_handles)
{
int handle;
node = config_node_section(node, NULL, NODE_TYPE_BLOCK);
config_node_set_str(config, node, "chat_type",
chat_protocol_find_id(server->chat_type)->name);
config_node_set_str(config, node, "address", server->connrec->address);
config_node_set_int(config, node, "port", server->connrec->port);
config_node_set_str(config, node, "chatnet", server->connrec->chatnet);
config_node_set_str(config, node, "password", server->connrec->password);
config_node_set_str(config, node, "nick", server->nick);
handle = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
*file_handles = g_slist_append(*file_handles, GINT_TO_POINTER(handle));
config_node_set_int(config, node, "handle", handle);
signal_emit("session save server", 4,
server, config, node, file_handles);
}
static void session_restore_server(CONFIG_NODE *node)
{
CHAT_PROTOCOL_REC *proto;
SERVER_CONNECT_REC *conn;
SERVER_REC *server;
const char *chat_type, *address, *chatnet, *password, *nick;
int port, handle;
chat_type = config_node_get_str(node, "chat_type", NULL);
address = config_node_get_str(node, "address", NULL);
port = config_node_get_int(node, "port", 0);
chatnet = config_node_get_str(node, "chatnet", NULL);
password = config_node_get_str(node, "password", NULL);
nick = config_node_get_str(node, "nick", NULL);
handle = config_node_get_int(node, "handle", -1);
if (chat_type == NULL || address == NULL || nick == NULL || handle < 0)
return;
proto = chat_protocol_find(chat_type);
if (proto == NULL || proto->not_initialized)
return;
conn = server_create_conn(proto->id, address, port,
chatnet, password, nick);
if (conn != NULL) {
next_handle = g_io_channel_unix_new(handle);
conn->reconnection = TRUE;
server = proto->server_connect(conn);
server->session_reconnect = TRUE;
signal_emit("session restore server", 2, server, node);
}
}
static void sig_session_save(CONFIG_REC *config, GSList **file_handles)
{
CONFIG_NODE *node;
GSList *tmp;
node = config_node_traverse(config, "(servers", TRUE);
for (tmp = servers; tmp != NULL; tmp = tmp->next)
session_save_server(tmp->data, config, node, file_handles);
}
static void sig_session_restore(CONFIG_REC *config)
{
CONFIG_NODE *node;
GSList *tmp;
node = config_node_traverse(config, "(servers", FALSE);
if (node != NULL) {
for (tmp = node->value; tmp != NULL; tmp = config_node_next(tmp))
session_restore_server(tmp->data);
}
}
static void sig_init_finished(void)
{
CONFIG_REC *session;
if (session_file == NULL)
return;
session = config_open(session_file, -1);
if (session == NULL)
return;
config_parse(session);
signal_emit("session restore", 1, session);
config_close(session);
unlink(session_file);
session_file = NULL;
}
static void sig_connecting(SERVER_REC *server, IPADDR *ip, GIOChannel **handle)
{
*handle = next_handle;
next_handle = NULL;
}
void session_init(void)
{
static struct poptOption options[] = {
{ "session", 0, POPT_ARG_STRING, &session_file, 0, "", "" },
{ NULL, '\0', 0, NULL }
};
session_file = NULL;
args_register(options);
command_bind("upgrade", NULL, (SIGNAL_FUNC) cmd_upgrade);
signal_add("session save", (SIGNAL_FUNC) sig_session_save);
signal_add("session restore", (SIGNAL_FUNC) sig_session_restore);
signal_add("irssi init finished", (SIGNAL_FUNC) sig_init_finished);
signal_add("server connecting", (SIGNAL_FUNC) sig_connecting);
}
void session_deinit(void)
{
command_unbind("upgrade", (SIGNAL_FUNC) cmd_upgrade);
signal_remove("session save", (SIGNAL_FUNC) sig_session_save);
signal_remove("session restore", (SIGNAL_FUNC) sig_session_restore);
signal_remove("irssi init finished", (SIGNAL_FUNC) sig_init_finished);
signal_remove("server connecting", (SIGNAL_FUNC) sig_connecting);
}
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