318 lines
8.5 KiB
PHP
Executable File
318 lines
8.5 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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# Abort if called from a web server
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if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
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print "This script must be run from the command line\n";
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exit();
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}
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define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
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define('LACONICA', true);
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require_once(INSTALLDIR . '/lib/common.php');
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require_once(INSTALLDIR . '/lib/jabber.php');
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set_error_handler('common_error_handler');
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# This is kind of clunky; we create a class to call the global functions
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# in jabber.php, which create a new XMPP class. A more elegant (?) solution
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# might be to use make this a subclass of XMPP.
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class XMPPDaemon {
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function XMPPDaemon($resource=NULL) {
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static $attrs = array('server', 'port', 'user', 'password', 'host');
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foreach ($attrs as $attr)
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{
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$this->$attr = common_config('xmpp', $attr);
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}
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if ($resource) {
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$this->resource = $resource;
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} else {
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$this->resource = common_config('xmpp', 'resource') . 'daemon';
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}
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$this->log(LOG_INFO, "{$this->user}@{$this->server}/{$this->resource}");
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}
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function connect() {
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$connect_to = ($this->host) ? $this->host : $this->server;
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$this->log(LOG_INFO, "Connecting to $connect_to on port $this->port");
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$this->conn = jabber_connect($this->resource, "Send me a message to post a notice", 100);
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if (!$this->conn) {
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return false;
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}
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return !$this->conn->isDisconnected();
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}
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function handle() {
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$this->conn->addEventHandler('message', 'handle_message', $this);
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$this->conn->addEventHandler('presence', 'handle_presence', $this);
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$this->conn->process();
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}
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function get_user($from) {
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$user = User::staticGet('jabber', jabber_normalize_jid($from));
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return $user;
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}
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function handle_message(&$pl) {
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if ($pl['type'] != 'chat') {
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return;
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}
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if (mb_strlen($pl['body']) == 0) {
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return;
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}
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$from = jabber_normalize_jid($pl['from']);
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# Forwarded from another daemon (probably a broadcaster) for
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# us to handle
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if ($this->is_self($from)) {
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$from = $this->get_ofrom($pl);
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if (is_null($from) || $this->is_self($from)) {
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return;
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}
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}
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$user = $this->get_user($from);
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if (!$user) {
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$this->from_site($from, 'Unknown user; go to ' .
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common_local_url('imsettings') .
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' to add your address to your account');
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$this->log(LOG_WARNING, 'Message from unknown user ' . $from);
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return;
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}
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if ($this->handle_command($user, $pl['body'])) {
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return;
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} else if ($this->is_autoreply($pl['body'])) {
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$this->log(LOG_INFO, 'Ignoring auto reply from ' . $from);
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return;
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} else if ($this->is_otr($pl['body'])) {
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$this->log(LOG_INFO, 'Ignoring OTR from ' . $from);
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return;
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} else {
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$len = mb_strlen($pl['body']);
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if($len > 140) {
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$this->from_site($from, 'Message too long - maximum is 140 characters, you sent ' . $len);
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return;
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}
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$this->add_notice($user, $pl);
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}
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}
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function is_self($from) {
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return preg_match('/^'.strtolower(jabber_daemon_address()).'/', strtolower($from));
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}
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function get_ofrom($pl) {
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$xml = $pl['raw'];
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$addresses = $xml->sub('addresses');
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if (!$addresses) {
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$this->log(LOG_WARNING, 'Forwarded message without addresses');
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return NULL;
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}
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$address = $addresses->sub('address');
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if (!$address) {
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$this->log(LOG_WARNING, 'Forwarded message without address');
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return NULL;
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}
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if (!array_key_exists('type', $address->attrs)) {
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$this->log(LOG_WARNING, 'No type for forwarded message');
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return NULL;
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}
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$type = $address->attrs['type'];
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if ($type != 'ofrom') {
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$this->log(LOG_WARNING, 'Type of forwarded message is not ofrom');
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return NULL;
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}
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if (!array_key_exists('jid', $address->attrs)) {
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$this->log(LOG_WARNING, 'No jid for forwarded message');
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return NULL;
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}
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$jid = $address->attrs['jid'];
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if (!$jid) {
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$this->log(LOG_WARNING, 'Could not get jid from address');
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return NULL;
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}
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$this->log(LOG_DEBUG, 'Got message forwarded from jid ' . $jid);
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return $jid;
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}
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function is_autoreply($txt) {
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if (preg_match('/[\[\(]?[Aa]uto-?[Rr]eply[\]\)]/', $txt)) {
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return true;
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} else {
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return false;
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}
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}
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function is_otr($txt) {
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if (preg_match('/^\?OTR/', $txt)) {
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return true;
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} else {
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return false;
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}
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}
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function from_site($address, $msg) {
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$text = '['.common_config('site', 'name') . '] ' . $msg;
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jabber_send_message($address, $text);
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}
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function handle_command($user, $body) {
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# XXX: localise
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$p=explode(' ',$body);
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if(count($p)>2)
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return false;
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switch($p[0]) {
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case 'help':
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if(count($p)!=1)
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return false;
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$this->from_site($user->jabber, "Commands:\n on - turn on notifications\n off - turn off notifications\n help - show this help \n sub - subscribe to user\n unsub - unsubscribe from user");
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return true;
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case 'on':
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if(count($p)!=1)
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return false;
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$this->set_notify($user, true);
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$this->from_site($user->jabber, 'notifications on');
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return true;
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case 'off':
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if(count($p)!=1)
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return false;
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$this->set_notify($user, false);
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$this->from_site($user->jabber, 'notifications off');
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return true;
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case 'sub':
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if(count($p)==1) {
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$this->from_site($user->jabber, 'Specify the name of the user to subscribe to');
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return true;
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}
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$result=subs_subscribe_user($user, $p[1]);
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if($result=='true')
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$this->from_site($user->jabber, 'Subscribed to ' . $p[1]);
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else
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$this->from_site($user->jabber, $result);
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return true;
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case 'unsub':
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if(count($p)==1) {
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$this->from_site($user->jabber, 'Specify the name of the user to unsubscribe from');
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return true;
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}
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$result=subs_unsubscribe_user($user, $p[1]);
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if($result=='true')
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$this->from_site($user->jabber, 'Unsubscribed from ' . $p[1]);
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else
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$this->from_site($user->jabber, $result);
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return true;
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default:
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return false;
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}
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}
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function set_notify(&$user, $notify) {
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$orig = clone($user);
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$user->jabbernotify = $notify;
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$result = $user->update($orig);
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if (!$result) {
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$last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
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$this->log(LOG_ERR,
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'Could not set notify flag to ' . $notify .
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' for user ' . common_log_objstring($user) .
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': ' . $last_error->message);
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} else {
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$this->log(LOG_INFO,
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'User ' . $user->nickname . ' set notify flag to ' . $notify);
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}
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}
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function add_notice(&$user, &$pl) {
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$notice = Notice::saveNew($user->id, trim(mb_substr($pl['body'], 0, 140)), 'xmpp');
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if (is_string($notice)) {
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$this->log(LOG_ERR, $notice);
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return;
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}
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common_broadcast_notice($notice);
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$this->log(LOG_INFO,
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'Added notice ' . $notice->id . ' from user ' . $user->nickname);
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}
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function handle_presence(&$pl) {
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$from = jabber_normalize_jid($pl['from']);
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switch ($pl['type']) {
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case 'subscribe':
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# We let anyone subscribe
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$this->subscribed($from);
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$this->log(LOG_INFO,
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'Accepted subscription from ' . $from);
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break;
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case 'subscribed':
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case 'unsubscribed':
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case 'unsubscribe':
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$this->log(LOG_INFO,
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'Ignoring "' . $pl['type'] . '" from ' . $from);
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break;
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default:
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if (!$pl['type']) {
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$user = User::staticGet('jabber', $from);
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if (!$user) {
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$this->log(LOG_WARNING, 'Presence from unknown user ' . $from);
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return;
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}
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if ($user->updatefrompresence) {
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$this->log(LOG_INFO, 'Updating ' . $user->nickname .
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' status from presence.');
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$this->add_notice($user, $pl);
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}
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}
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break;
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}
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}
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function log($level, $msg) {
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common_log($level, 'XMPPDaemon('.$this->resource.'): '.$msg);
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}
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function subscribed($to) {
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jabber_special_presence('subscribed', $to);
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}
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}
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mb_internal_encoding('UTF-8');
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$resource = ($argc > 1) ? $argv[1] : (common_config('xmpp','resource') . '-listen');
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$daemon = new XMPPDaemon($resource);
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if ($daemon->connect()) {
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$daemon->handle();
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}
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