From 4501917cae4523d11fb049a5d20e5582bb0893ea Mon Sep 17 00:00:00 2001 From: dequis Date: Sat, 31 Mar 2018 01:46:10 -0300 Subject: otr: rename module.c to otr-module.c --- src/otr/otr-module.c | 267 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 src/otr/otr-module.c (limited to 'src/otr/otr-module.c') diff --git a/src/otr/otr-module.c b/src/otr/otr-module.c new file mode 100644 index 00000000..f561b91c --- /dev/null +++ b/src/otr/otr-module.c @@ -0,0 +1,267 @@ +/* + * Off-the-Record Messaging (OTR) module for the irssi IRC client + * + * Copyright (C) 2008 Uli Meis + * 2012 David Goulet + * + * 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 + */ + +#define _GNU_SOURCE +#include + +#include "module.h" + +#include "common.h" +#include "signals.h" +#include "queries.h" +#include "commands.h" + +#include "irc.h" +#include "irc-servers.h" +#include "irc-queries.h" +#include "irc-commands.h" + +#include "key.h" +#include "otr.h" +#include "otr-formats.h" +#include "otr-fe.h" +#include "misc.h" + +/* + * Global state for the user. Init when the module loads. + */ +struct otr_user_state *user_state_global; + +/* + * Pipes all outgoing private messages through OTR + */ +static void sig_server_sendmsg(SERVER_REC *server, const char *target, + const char *msg, void *target_type_p) +{ + char *otrmsg = NULL; + + if (GPOINTER_TO_INT(target_type_p) != SEND_TARGET_NICK) { + otrl_message_free(otrmsg); + return; + } + + /* Critical section. On error, message MUST NOT be sent */ + if (otr_send(server, msg, target, &otrmsg)) { + signal_stop(); + otrl_message_free(otrmsg); + return; + } + + if (otrmsg == NULL) { + /* Send original message */ + signal_continue(4, server, target, msg, target_type_p); + } else { + /* Send encrypted message */ + signal_continue(4, server, target, otrmsg, target_type_p); + } + + otrl_message_free(otrmsg); +} + +/* + * Pipes all incoming private messages through OTR + */ +void sig_message_private(SERVER_REC *server, const char *msg, const char *nick, const char *address, const char *target) +{ + char *new_msg = NULL; + + if (otr_receive(server, msg, nick, &new_msg)) { + signal_stop(); + otrl_message_free(new_msg); + return; + } + + if (new_msg == NULL) { + /* This message was not OTR */ + signal_continue(5, server, msg, nick, address, target); + } else { + /* + * Check for /me IRC marker and if so, handle it so the user does not + * receive a message beginning with /me but rather let irssi handle it + * as a IRC action. + */ + if (strncmp(new_msg, OTR_IRC_MARKER_ME, OTR_IRC_MARKER_ME_LEN) == 0) { + signal_stop(); + signal_emit("message irc action", 5, server, new_msg + OTR_IRC_MARKER_ME_LEN, nick, address, nick); + } else { + /* OTR received message */ + signal_continue(5, server, new_msg, nick, address, target); + } + } + + otrl_message_free(new_msg); +} + +/* + * Finish an OTR conversation when its query is closed. + */ +static void sig_query_destroyed(QUERY_REC *query) +{ + if (query && query->server && query->server->connrec) { + otr_finish(query->server, query->name); + } +} + +/* + * Handle /me IRC command. + */ +static void cmd_me(const char *data, IRC_SERVER_REC *server, + WI_ITEM_REC *item) +{ + const char *target; + char *msg, *otrmsg = NULL; + QUERY_REC *query; + + query = QUERY(item); + + if (query == NULL || query->server == NULL) { + return; + } + + CMD_IRC_SERVER(server); + if (!IS_IRC_QUERY(query)) { + return; + } + + if (server == NULL || !server->connected) { + cmd_return_error(CMDERR_NOT_CONNECTED); + } + + target = window_item_get_target(item); + + msg = g_strdup_printf(OTR_IRC_MARKER_ME "%s", data); + g_return_if_fail(msg != NULL); + + /* Critical section. On error, message MUST NOT be sent */ + otr_send(query->server, msg, target, &otrmsg); + g_free(msg); + + if (otrmsg == NULL) { + return; + } + + signal_stop(); + + if (otrmsg) { + /* Send encrypted message */ + otr_send_message(SERVER(server), target, otrmsg); + otrl_message_free(otrmsg); + } + + signal_emit("message irc own_action", 3, server, data, item->visible_name); +} + +/* + * Optionally finish conversations on /quit. We're already doing this on unload + * but the quit handler terminates irc connections before unloading. + */ +static void cmd_quit(const char *data, void *server, WI_ITEM_REC *item) +{ + otr_finishall(user_state_global); +} + +/* + * Create otr module directory if none exists. + */ +static void create_module_dir(void) +{ + char *dir_path = NULL; + struct stat statbuf; + + /* Create ~/.irssi/otr directory. */ + dir_path = g_strdup_printf("%s/%s", get_irssi_dir(), OTR_DIR); + g_return_if_fail(dir_path != NULL); + + if (stat(dir_path, &statbuf) != 0) { + if (g_mkdir_with_parents(dir_path, 0700) != 0) + g_warning("Unable to create OTR directory path."); + } else if (!S_ISDIR(statbuf.st_mode)) { + g_warning("%s is not a directory.", dir_path); + g_warning("You should remove it with command: rm %s", dir_path); + } + + g_free(dir_path); +} + +void otr_send_message(SERVER_REC *server, const char *recipient, const char *msg) +{ + /* + * Apparently, there are cases where the server record is NULL which has + * been reported with the irssi xmpp plugin. In that case, just return an + * do nothing. + */ + g_return_if_fail(server != NULL); + + server->send_message(server, recipient, msg, GPOINTER_TO_INT(SEND_TARGET_NICK)); +} + +/* + * irssi init() + */ +void otr_core_init(void) +{ + module_register("otr", "core"); + + create_module_dir(); + + otr_lib_init(); + + user_state_global = otr_init_user_state(); + g_return_if_fail(user_state_global != NULL); + + signal_add_first("server sendmsg", (SIGNAL_FUNC) sig_server_sendmsg); + signal_add_first("message private", (SIGNAL_FUNC) sig_message_private); + signal_add("query destroyed", (SIGNAL_FUNC) sig_query_destroyed); + + command_bind_first("quit", NULL, (SIGNAL_FUNC) cmd_quit); + command_bind_irc_first("me", NULL, (SIGNAL_FUNC) cmd_me); + + otr_fe_init(); +} + +/* + * irssi deinit() + */ +void otr_core_deinit(void) +{ + signal_remove("server sendmsg", (SIGNAL_FUNC) sig_server_sendmsg); + signal_remove("message private", (SIGNAL_FUNC) sig_message_private); + signal_remove("query destroyed", (SIGNAL_FUNC) sig_query_destroyed); + + otr_fe_deinit(); + + command_unbind("quit", (SIGNAL_FUNC) cmd_quit); + command_unbind("me", (SIGNAL_FUNC) cmd_me); + + otr_finishall(user_state_global); + + /* Remove glib timer if any. */ + otr_control_timer(0, NULL); + + otr_free_user_state(user_state_global); + + otr_lib_uninit(); +} + +void otr_core_abicheck(int *version) +{ + *version = IRSSI_ABI_VERSION; +} -- cgit v1.2.3