/* * xmpp_conn.c * * Copyright (C) 2012, 2013 James Booth * * This file is part of Profanity. * * Profanity 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 3 of the License, or * (at your option) any later version. * * Profanity 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 Profanity. If not, see . * */ #include #include #include #include #include "chat_session.h" #include "common.h" #include "contact_list.h" #include "jid.h" #include "log.h" #include "preferences.h" #include "profanity.h" #include "muc.h" #include "xmpp.h" static struct _jabber_conn_t { xmpp_log_t *log; xmpp_ctx_t *ctx; xmpp_conn_t *conn; jabber_conn_status_t conn_status; jabber_presence_t presence; char *status; int tls_disabled; int priority; } jabber_conn; // for auto reconnect static struct { char *name; char *passwd; } saved_account; static struct { char *name; char *jid; char *passwd; char *altdomain; } saved_details; static GTimer *reconnect_timer; static log_level_t _get_log_level(xmpp_log_level_t xmpp_level); static xmpp_log_level_t _get_xmpp_log_level(); static void _xmpp_file_logger(void * const userdata, const xmpp_log_level_t level, const char * const area, const char * const msg); static xmpp_log_t * _xmpp_get_file_logger(); static jabber_conn_status_t _jabber_connect(const char * const fulljid, const char * const passwd, const char * const altdomain); static void _jabber_reconnect(void); static void _jabber_roster_request(void); // XMPP event handlers static void _connection_handler(xmpp_conn_t * const conn, const xmpp_conn_event_t status, const int error, xmpp_stream_error_t * const stream_error, void * const userdata); static int _message_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza, void * const userdata); static int _groupchat_message_handler(xmpp_stanza_t * const stanza); static int _chat_message_handler(xmpp_stanza_t * const stanza); static int _ping_timed_handler(xmpp_conn_t * const conn, void * const userdata); void jabber_init(const int disable_tls) { log_info("Initialising XMPP"); jabber_conn.conn_status = JABBER_STARTED; jabber_conn.presence = PRESENCE_OFFLINE; jabber_conn.status = NULL; jabber_conn.tls_disabled = disable_tls; presence_init(); } void jabber_restart(void) { jabber_conn.conn_status = JABBER_STARTED; jabber_conn.presence = PRESENCE_OFFLINE; FREE_SET_NULL(jabber_conn.status); } static jabber_conn_status_t _jabber_connect(const char * const fulljid, const char * const passwd, const char * const altdomain) { Jid *jid = jid_create(fulljid); if (jid == NULL) { log_error("Malformed JID not able to connect: %s", fulljid); jabber_conn.conn_status = JABBER_DISCONNECTED; return jabber_conn.conn_status; } else if (jid->fulljid == NULL) { log_error("Full JID required to connect, received: %s", fulljid); jabber_conn.conn_status = JABBER_DISCONNECTED; return jabber_conn.conn_status; } jid_destroy(jid); log_info("Connecting as %s", fulljid); xmpp_initialize(); jabber_conn.log = _xmpp_get_file_logger(); jabber_conn.ctx = xmpp_ctx_new(NULL, jabber_conn.log); jabber_conn.conn = xmpp_conn_new(jabber_conn.ctx); xmpp_conn_set_jid(jabber_conn.conn, fulljid); xmpp_conn_set_pass(jabber_conn.conn, passwd); if (jabber_conn.tls_disabled) xmpp_conn_disable_tls(jabber_conn.conn); int connect_status = xmpp_connect_client(jabber_conn.conn, altdomain, 0, _connection_handler, jabber_conn.ctx); if (connect_status == 0) jabber_conn.conn_status = JABBER_CONNECTING; else jabber_conn.conn_status = JABBER_DISCONNECTED; return jabber_conn.conn_status; } jabber_conn_status_t jabber_connect_with_account(ProfAccount *account, const char * const passwd) { saved_account.name = strdup(account->name); saved_account.passwd = strdup(passwd); log_info("Connecting using account: %s", account->name); char *fulljid = create_fulljid(account->jid, account->resource); jabber_conn_status_t result = _jabber_connect(fulljid, passwd, account->server); free(fulljid); return result; } jabber_conn_status_t jabber_connect_with_details(const char * const jid, const char * const passwd, const char * const altdomain) { saved_details.name = strdup(jid); saved_details.passwd = strdup(passwd); if (altdomain != NULL) { saved_details.altdomain = strdup(altdomain); } else { saved_details.altdomain = NULL; } Jid *jidp = jid_create(jid); if (jidp->resourcepart == NULL) { jid_destroy(jidp); jidp = jid_create_from_bare_and_resource(jid, "profanity"); saved_details.jid = strdup(jidp->fulljid); } else { saved_details.jid = strdup(jid); } jid_destroy(jidp); log_info("Connecting without account, JID: %s", saved_details.jid); return _jabber_connect(saved_details.jid, passwd, saved_details.altdomain); } static void _jabber_reconnect(void) { // reconnect with account. ProfAccount *account = accounts_get_account(saved_account.name); if (account == NULL) { log_error("Unable to reconnect, account no longer exists: %s", saved_account.name); } else { char *fulljid = create_fulljid(account->jid, account->resource); log_debug("Attempting reconnect with account %s", account->name); _jabber_connect(fulljid, saved_account.passwd, account->server); free(fulljid); g_timer_start(reconnect_timer); } } void jabber_disconnect(void) { // if connected, send end stream and wait for response if (jabber_conn.conn_status == JABBER_CONNECTED) { log_info("Closing connection"); jabber_conn.conn_status = JABBER_DISCONNECTING; xmpp_disconnect(jabber_conn.conn); while (jabber_get_connection_status() == JABBER_DISCONNECTING) { jabber_process_events(); } jabber_free_resources(); } } void jabber_process_events(void) { // run xmpp event loop if connected, connecting or disconnecting if (jabber_conn.conn_status == JABBER_CONNECTED || jabber_conn.conn_status == JABBER_CONNECTING || jabber_conn.conn_status == JABBER_DISCONNECTING) { xmpp_run_once(jabber_conn.ctx, 10); // check timer and reconnect if disconnected and timer set } else if (prefs_get_reconnect() != 0) { if ((jabber_conn.conn_status == JABBER_DISCONNECTED) && (reconnect_timer != NULL)) { if (g_timer_elapsed(reconnect_timer, NULL) > prefs_get_reconnect()) { _jabber_reconnect(); } } } } void jabber_send(const char * const msg, const char * const recipient) { if (prefs_get_states()) { if (!chat_session_exists(recipient)) { chat_session_start(recipient, TRUE); } } xmpp_stanza_t *message; if (prefs_get_states() && chat_session_get_recipient_supports(recipient)) { chat_session_set_active(recipient); message = stanza_create_message(jabber_conn.ctx, recipient, STANZA_TYPE_CHAT, msg, STANZA_NAME_ACTIVE); } else { message = stanza_create_message(jabber_conn.ctx, recipient, STANZA_TYPE_CHAT, msg, NULL); } xmpp_send(jabber_conn.conn, message); xmpp_stanza_release(message); } void jabber_send_groupchat(const char * const msg, const char * const recipient) { xmpp_stanza_t *message = stanza_create_message(jabber_conn.ctx, recipient, STANZA_TYPE_GROUPCHAT, msg, NULL); xmpp_send(jabber_conn.conn, message); xmpp_stanza_release(message); } void jabber_send_composing(const char * const recipient) { xmpp_stanza_t *stanza = stanza_create_chat_state(jabber_conn.ctx, recipient, STANZA_NAME_COMPOSING); xmpp_send(jabber_conn.conn, stanza); xmpp_stanza_release(stanza); chat_session_set_sent(recipient); } void jabber_send_paused(const char * const recipient) { xmpp_stanza_t *stanza = stanza_create_chat_state(jabber_conn.ctx, recipient, STANZA_NAME_PAUSED); xmpp_send(jabber_conn.conn, stanza); xmpp_stanza_release(stanza); chat_session_set_sent(recipient); } void jabber_send_inactive(const char * const recipient) { xmpp_stanza_t *stanza = stanza_create_chat_state(jabber_conn.ctx, recipient, STANZA_NAME_INACTIVE); xmpp_send(jabber_conn.conn, stanza); xmpp_stanza_release(stanza); chat_session_set_sent(recipient); } void jabber_send_gone(const char * const recipient) { xmpp_stanza_t *stanza = stanza_create_chat_state(jabber_conn.ctx, recipient, STANZA_NAME_GONE); xmpp_send(jabber_conn.conn, stanza); xmpp_stanza_release(stanza); chat_session_set_sent(recipient); } void jabber_set_autoping(int seconds) { if (jabber_conn.conn_status == JABBER_CONNECTED) { xmpp_timed_handler_delete(jabber_conn.conn, _ping_timed_handler); if (seconds != 0) { int millis = seconds * 1000; xmpp_timed_handler_add(jabber_conn.conn, _ping_timed_handler, millis, jabber_conn.ctx); } } } jabber_conn_status_t jabber_get_connection_status(void) { return (jabber_conn.conn_status); } xmpp_conn_t * jabber_get_conn(void) { return jabber_conn.conn; } xmpp_ctx_t * jabber_get_ctx(void) { return jabber_conn.ctx; } const char * jabber_get_jid(void) { return xmpp_conn_get_jid(jabber_conn.conn); } int jabber_get_priority(void) { return jabber_conn.priority; } jabber_presence_t jabber_get_presence(void) { return jabber_conn.presence; } // returns pointer to status, owned by connection char * jabber_get_status(void) { return jabber_conn.status; } char * jabber_get_account_name(void) { return saved_account.name; } void jabber_conn_set_presence(jabber_presence_t presence) { jabber_conn.presence = presence; } void jabber_conn_set_status(const char * const message) { FREE_SET_NULL(jabber_conn.status); if (message != NULL) { jabber_conn.status = strdup(message); } } void jabber_conn_set_priority(int priority) { jabber_conn.priority = priority; } void jabber_free_resources(void) { FREE_SET_NULL(saved_details.name); FREE_SET_NULL(saved_details.jid); FREE_SET_NULL(saved_details.passwd); FREE_SET_NULL(saved_details.altdomain); FREE_SET_NULL(saved_account.name); FREE_SET_NULL(saved_account.passwd); chat_sessions_clear(); presence_free_sub_requests(); xmpp_conn_release(jabber_conn.conn); xmpp_ctx_free(jabber_conn.ctx); xmpp_shutdown(); } static void _jabber_roster_request(void) { xmpp_stanza_t *iq = stanza_create_roster_iq(jabber_conn.ctx); xmpp_send(jabber_conn.conn, iq); xmpp_stanza_release(iq); } static int _message_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza, void * const userdata) { gchar *type = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_TYPE); if (type == NULL) { log_error("Message stanza received with no type attribute"); return 1; } else if (strcmp(type, STANZA_TYPE_ERROR) == 0) { return error_handler(stanza); } else if (strcmp(type, STANZA_TYPE_GROUPCHAT) == 0) { return _groupchat_message_handler(stanza); } else if (strcmp(type, STANZA_TYPE_CHAT) == 0) { return _chat_message_handler(stanza); } else { log_error("Message stanza received with unknown type: %s", type); return 1; } } static int _groupchat_message_handler(xmpp_stanza_t * const stanza) { char *message = NULL; char *room_jid = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM); Jid *jid = jid_create(room_jid); // handle room broadcasts if (jid->resourcepart == NULL) { xmpp_stanza_t *subject = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_SUBJECT); // handle subject if (subject != NULL) { message = xmpp_stanza_get_text(subject); if (message != NULL) { prof_handle_room_subject(jid->barejid, message); } return 1; // handle other room broadcasts } else { xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY); if (body != NULL) { message = xmpp_stanza_get_text(body); if (message != NULL) { prof_handle_room_broadcast(room_jid, message); } } return 1; } } if (!jid_is_valid_room_form(jid)) { log_error("Invalid room JID: %s", jid->str); return 1; } // room not active in profanity if (!muc_room_is_active(jid)) { log_error("Message recieved for inactive chat room: %s", jid->str); return 1; } // determine if the notifications happened whilst offline GTimeVal tv_stamp; gboolean delayed = stanza_get_delay(stanza, &tv_stamp); xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY); // check for and deal with message if (body != NULL) { char *message = xmpp_stanza_get_text(body); if (delayed) { prof_handle_room_history(jid->barejid, jid->resourcepart, tv_stamp, message); } else { prof_handle_room_message(jid->barejid, jid->resourcepart, message); } } jid_destroy(jid); return 1; } int error_handler(xmpp_stanza_t * const stanza) { gchar *err_msg = NULL; gchar *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM); xmpp_stanza_t *error_stanza = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_ERROR); xmpp_stanza_t *text_stanza = xmpp_stanza_get_child_by_name(error_stanza, STANZA_NAME_TEXT); if (error_stanza == NULL) { log_debug("error message without received"); } else { // check for text if (text_stanza != NULL) { err_msg = xmpp_stanza_get_text(text_stanza); prof_handle_error_message(from, err_msg); // TODO : process 'type' attribute from [RFC6120, 8.3.2] // otherwise show defined-condition } else { xmpp_stanza_t *err_cond = xmpp_stanza_get_children(error_stanza); if (err_cond == NULL) { log_debug("error message without or received"); } else { err_msg = xmpp_stanza_get_name(err_cond); prof_handle_error_message(from, err_msg); // TODO : process 'type' attribute from [RFC6120, 8.3.2] } } } return 1; } static int _chat_message_handler(xmpp_stanza_t * const stanza) { gchar *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM); Jid *jid = jid_create(from); // private message from chat room use full jid (room/nick) if (muc_room_is_active(jid)) { // determine if the notifications happened whilst offline GTimeVal tv_stamp; gboolean delayed = stanza_get_delay(stanza, &tv_stamp); // check for and deal with message xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY); if (body != NULL) { char *message = xmpp_stanza_get_text(body); if (delayed) { prof_handle_delayed_message(jid->str, message, tv_stamp, TRUE); } else { prof_handle_incoming_message(jid->str, message, TRUE); } } free(jid); return 1; // standard chat message, use jid without resource } else { // determine chatstate support of recipient gboolean recipient_supports = FALSE; if (stanza_contains_chat_state(stanza)) { recipient_supports = TRUE; } // create or update chat session if (!chat_session_exists(jid->barejid)) { chat_session_start(jid->barejid, recipient_supports); } else { chat_session_set_recipient_supports(jid->barejid, recipient_supports); } // determine if the notifications happened whilst offline GTimeVal tv_stamp; gboolean delayed = stanza_get_delay(stanza, &tv_stamp); // deal with chat states if recipient supports them if (recipient_supports && (!delayed)) { if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_COMPOSING) != NULL) { if (prefs_get_notify_typing() || prefs_get_intype()) { prof_handle_typing(jid->barejid); } } else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_GONE) != NULL) { prof_handle_gone(jid->barejid); } else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_PAUSED) != NULL) { // do something } else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_INACTIVE) != NULL) { // do something } else { // handle // do something } } // check for and deal with message xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY); if (body != NULL) { char *message = xmpp_stanza_get_text(body); if (delayed) { prof_handle_delayed_message(jid->barejid, message, tv_stamp, FALSE); } else { prof_handle_incoming_message(jid->barejid, message, FALSE); } } free(jid); return 1; } } static void _connection_handler(xmpp_conn_t * const conn, const xmpp_conn_event_t status, const int error, xmpp_stream_error_t * const stream_error, void * const userdata) { xmpp_ctx_t *ctx = (xmpp_ctx_t *)userdata; // login success if (status == XMPP_CONN_CONNECT) { // logged in with account if (saved_account.name != NULL) { prof_handle_login_account_success(saved_account.name); // logged in without account, use details to create new account } else { accounts_add(saved_details.name, saved_details.altdomain); accounts_set_jid(saved_details.name, saved_details.jid); prof_handle_login_account_success(saved_details.name); saved_account.name = strdup(saved_details.name); saved_account.passwd = strdup(saved_details.passwd); FREE_SET_NULL(saved_details.name); FREE_SET_NULL(saved_details.jid); FREE_SET_NULL(saved_details.passwd); FREE_SET_NULL(saved_details.altdomain); } chat_sessions_init(); xmpp_handler_add(conn, _message_handler, NULL, STANZA_NAME_MESSAGE, NULL, ctx); xmpp_handler_add(conn, presence_handler, NULL, STANZA_NAME_PRESENCE, NULL, ctx); iq_add_handlers(conn, ctx); if (prefs_get_autoping() != 0) { int millis = prefs_get_autoping() * 1000; xmpp_timed_handler_add(conn, _ping_timed_handler, millis, ctx); } _jabber_roster_request(); jabber_conn.conn_status = JABBER_CONNECTED; jabber_conn.presence = PRESENCE_ONLINE; if (prefs_get_reconnect() != 0) { if (reconnect_timer != NULL) { g_timer_destroy(reconnect_timer); reconnect_timer = NULL; } } } else if (status == XMPP_CONN_DISCONNECT) { // lost connection for unkown reason if (jabber_conn.conn_status == JABBER_CONNECTED) { prof_handle_lost_connection(); if (prefs_get_reconnect() != 0) { assert(reconnect_timer == NULL); reconnect_timer = g_timer_new(); // TODO: free resources but leave saved_user untouched } else { jabber_free_resources(); } // login attempt failed } else if (jabber_conn.conn_status != JABBER_DISCONNECTING) { if (reconnect_timer == NULL) { prof_handle_failed_login(); jabber_free_resources(); } else { if (prefs_get_reconnect() != 0) { g_timer_start(reconnect_timer); } // TODO: free resources but leave saved_user untouched } } // close stream response from server after disconnect is handled too jabber_conn.conn_status = JABBER_DISCONNECTED; jabber_conn.presence = PRESENCE_OFFLINE; } } static int _ping_timed_handler(xmpp_conn_t * const conn, void * const userdata) { if (jabber_conn.conn_status == JABBER_CONNECTED) { xmpp_ctx_t *ctx = (xmpp_ctx_t *)userdata; xmpp_stanza_t *iq = stanza_create_ping_iq(ctx); xmpp_send(conn, iq); xmpp_stanza_release(iq); } return 1; } static log_level_t _get_log_level(xmpp_log_level_t xmpp_level) { if (xmpp_level == XMPP_LEVEL_DEBUG) { return PROF_LEVEL_DEBUG; } else if (xmpp_level == XMPP_LEVEL_INFO) { return PROF_LEVEL_INFO; } else if (xmpp_level == XMPP_LEVEL_WARN) { return PROF_LEVEL_WARN; } else { return PROF_LEVEL_ERROR; } } static xmpp_log_level_t _get_xmpp_log_level() { log_level_t prof_level = log_get_filter(); if (prof_level == PROF_LEVEL_DEBUG) { return XMPP_LEVEL_DEBUG; } else if (prof_level == PROF_LEVEL_INFO) { return XMPP_LEVEL_INFO; } else if (prof_level == PROF_LEVEL_WARN) { return XMPP_LEVEL_WARN; } else { return XMPP_LEVEL_ERROR; } } static void _xmpp_file_logger(void * const userdata, const xmpp_log_level_t level, const char * const area, const char * const msg) { log_level_t prof_level = _get_log_level(level); log_msg(prof_level, area, msg); } static xmpp_log_t * _xmpp_get_file_logger() { xmpp_log_level_t level = _get_xmpp_log_level(); xmpp_log_t *file_log = malloc(sizeof(xmpp_log_t)); file_log->handler = _xmpp_file_logger; file_log->userdata = &level; return file_log; }