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+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2009, StatusNet, Inc.
+ *
+ * Send and receive notices using the XMPP network
+ *
+ * PHP version 5
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category IM
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @copyright 2009 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+ // This check helps protect against security problems;
+ // your code file can't be executed directly from the web.
+ exit(1);
+}
+
+/**
+ * Plugin for XMPP
+ *
+ * @category Plugin
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @copyright 2009 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link http://status.net/
+ */
+
+class XmppPlugin extends ImPlugin
+{
+ public $server = null;
+ public $port = 5222;
+ public $user = 'update';
+ public $resource = null;
+ public $encryption = true;
+ public $password = null;
+ public $host = null; // only set if != server
+ public $debug = false; // print extra debug info
+
+ public $transport = 'xmpp';
+
+ function getDisplayName(){
+ return _m('XMPP/Jabber/GTalk');
+ }
+
+ /**
+ * Splits a Jabber ID (JID) into node, domain, and resource portions.
+ *
+ * Based on validation routine submitted by:
+ * @copyright 2009 Patrick Georgi <patrick@georgi-clan.de>
+ * @license Licensed under ISC-L, which is compatible with everything else that keeps the copyright notice intact.
+ *
+ * @param string $jid string to check
+ *
+ * @return array with "node", "domain", and "resource" indices
+ * @throws Exception if input is not valid
+ */
+
+ protected function splitJid($jid)
+ {
+ $chars = '';
+ /* the following definitions come from stringprep, Appendix C,
+ which is used in its entirety by nodeprop, Chapter 5, "Prohibited Output" */
+ /* C1.1 ASCII space characters */
+ $chars .= "\x{20}";
+ /* C1.2 Non-ASCII space characters */
+ $chars .= "\x{a0}\x{1680}\x{2000}-\x{200b}\x{202f}\x{205f}\x{3000a}";
+ /* C2.1 ASCII control characters */
+ $chars .= "\x{00}-\x{1f}\x{7f}";
+ /* C2.2 Non-ASCII control characters */
+ $chars .= "\x{80}-\x{9f}\x{6dd}\x{70f}\x{180e}\x{200c}\x{200d}\x{2028}\x{2029}\x{2060}-\x{2063}\x{206a}-\x{206f}\x{feff}\x{fff9}-\x{fffc}\x{1d173}-\x{1d17a}";
+ /* C3 - Private Use */
+ $chars .= "\x{e000}-\x{f8ff}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}";
+ /* C4 - Non-character code points */
+ $chars .= "\x{fdd0}-\x{fdef}\x{fffe}\x{ffff}\x{1fffe}\x{1ffff}\x{2fffe}\x{2ffff}\x{3fffe}\x{3ffff}\x{4fffe}\x{4ffff}\x{5fffe}\x{5ffff}\x{6fffe}\x{6ffff}\x{7fffe}\x{7ffff}\x{8fffe}\x{8ffff}\x{9fffe}\x{9ffff}\x{afffe}\x{affff}\x{bfffe}\x{bffff}\x{cfffe}\x{cffff}\x{dfffe}\x{dffff}\x{efffe}\x{effff}\x{ffffe}\x{fffff}\x{10fffe}\x{10ffff}";
+ /* C5 - Surrogate codes */
+ $chars .= "\x{d800}-\x{dfff}";
+ /* C6 - Inappropriate for plain text */
+ $chars .= "\x{fff9}-\x{fffd}";
+ /* C7 - Inappropriate for canonical representation */
+ $chars .= "\x{2ff0}-\x{2ffb}";
+ /* C8 - Change display properties or are deprecated */
+ $chars .= "\x{340}\x{341}\x{200e}\x{200f}\x{202a}-\x{202e}\x{206a}-\x{206f}";
+ /* C9 - Tagging characters */
+ $chars .= "\x{e0001}\x{e0020}-\x{e007f}";
+
+ /* Nodeprep forbids some more characters */
+ $nodeprepchars = $chars;
+ $nodeprepchars .= "\x{22}\x{26}\x{27}\x{2f}\x{3a}\x{3c}\x{3e}\x{40}";
+
+ $parts = explode("/", $jid, 2);
+ if (count($parts) > 1) {
+ $resource = $parts[1];
+ if ($resource == '') {
+ // Warning: empty resource isn't legit.
+ // But if we're normalizing, we may as well take it...
+ }
+ } else {
+ $resource = null;
+ }
+
+ $node = explode("@", $parts[0]);
+ if ((count($node) > 2) || (count($node) == 0)) {
+ throw new Exception("Invalid JID: too many @s");
+ } else if (count($node) == 1) {
+ $domain = $node[0];
+ $node = null;
+ } else {
+ $domain = $node[1];
+ $node = $node[0];
+ if ($node == '') {
+ throw new Exception("Invalid JID: @ but no node");
+ }
+ }
+
+ // Length limits per http://xmpp.org/rfcs/rfc3920.html#addressing
+ if ($node !== null) {
+ if (strlen($node) > 1023) {
+ throw new Exception("Invalid JID: node too long.");
+ }
+ if (preg_match("/[".$nodeprepchars."]/u", $node)) {
+ throw new Exception("Invalid JID node '$node'");
+ }
+ }
+
+ if (strlen($domain) > 1023) {
+ throw new Exception("Invalid JID: domain too long.");
+ }
+ if (!common_valid_domain($domain)) {
+ throw new Exception("Invalid JID domain name '$domain'");
+ }
+
+ if ($resource !== null) {
+ if (strlen($resource) > 1023) {
+ throw new Exception("Invalid JID: resource too long.");
+ }
+ if (preg_match("/[".$chars."]/u", $resource)) {
+ throw new Exception("Invalid JID resource '$resource'");
+ }
+ }
+
+ return array('node' => is_null($node) ? null : mb_strtolower($node),
+ 'domain' => is_null($domain) ? null : mb_strtolower($domain),
+ 'resource' => $resource);
+ }
+
+ /**
+ * Checks whether a string is a syntactically valid Jabber ID (JID),
+ * either with or without a resource.
+ *
+ * Note that a bare domain can be a valid JID.
+ *
+ * @param string $jid string to check
+ * @param bool $check_domain whether we should validate that domain...
+ *
+ * @return boolean whether the string is a valid JID
+ */
+ protected function validateFullJid($jid, $check_domain=false)
+ {
+ try {
+ $parts = $this->splitJid($jid);
+ if ($check_domain) {
+ if (!$this->checkDomain($parts['domain'])) {
+ return false;
+ }
+ }
+ return $parts['resource'] !== ''; // missing or present; empty ain't kosher
+ } catch (Exception $e) {
+ return false;
+ }
+ }
+
+ /**
+ * Checks whether a string is a syntactically valid base Jabber ID (JID).
+ * A base JID won't include a resource specifier on the end; since we
+ * take it off when reading input we can't really use them reliably
+ * to direct outgoing messages yet (sorry guys!)
+ *
+ * Note that a bare domain can be a valid JID.
+ *
+ * @param string $jid string to check
+ * @param bool $check_domain whether we should validate that domain...
+ *
+ * @return boolean whether the string is a valid JID
+ */
+ protected function validateBaseJid($jid, $check_domain=false)
+ {
+ try {
+ $parts = $this->splitJid($jid);
+ if ($check_domain) {
+ if (!$this->checkDomain($parts['domain'])) {
+ return false;
+ }
+ }
+ return ($parts['resource'] === null); // missing; empty ain't kosher
+ } catch (Exception $e) {
+ return false;
+ }
+ }
+
+ /**
+ * Normalizes a Jabber ID for comparison, dropping the resource component if any.
+ *
+ * @param string $jid JID to check
+ * @param bool $check_domain if true, reject if the domain isn't findable
+ *
+ * @return string an equivalent JID in normalized (lowercase) form
+ */
+
+ function normalize($jid)
+ {
+ try {
+ $parts = $this->splitJid($jid);
+ if ($parts['node'] !== null) {
+ return $parts['node'] . '@' . $parts['domain'];
+ } else {
+ return $parts['domain'];
+ }
+ } catch (Exception $e) {
+ return null;
+ }
+ }
+
+ /**
+ * Check if this domain's got some legit DNS record
+ */
+ protected function checkDomain($domain)
+ {
+ if (checkdnsrr("_xmpp-server._tcp." . $domain, "SRV")) {
+ return true;
+ }
+ if (checkdnsrr($domain, "ANY")) {
+ return true;
+ }
+ return false;
+ }
+
+ function daemonScreenname()
+ {
+ $ret = $this->user . '@' . $this->server;
+ if($this->resource)
+ {
+ return $ret . '/' . $this->resource;
+ }else{
+ return $ret;
+ }
+ }
+
+ function validate($screenname)
+ {
+ return $this->validateBaseJid($screenname, common_config('email', 'check_domain'));
+ }
+
+ /**
+ * Load related modules when needed
+ *
+ * @param string $cls Name of the class to be loaded
+ *
+ * @return boolean hook value; true means continue processing, false means stop.
+ */
+
+ function onAutoload($cls)
+ {
+ $dir = dirname(__FILE__);
+
+ switch ($cls)
+ {
+ case 'XMPPHP_XMPP':
+ require_once $dir . '/extlib/XMPPHP/XMPP.php';
+ return false;
+ case 'Sharing_XMPP':
+ case 'Queued_XMPP':
+ require_once $dir . '/'.$cls.'.php';
+ return false;
+ case 'XmppManager':
+ require_once $dir . '/'.strtolower($cls).'.php';
+ return false;
+ default:
+ return true;
+ }
+ }
+
+ function onStartImDaemonIoManagers(&$classes)
+ {
+ parent::onStartImDaemonIoManagers(&$classes);
+ $classes[] = new XmppManager($this); // handles pings/reconnects
+ return true;
+ }
+
+ function microiduri($screenname)
+ {
+ return 'xmpp:' . $screenname;
+ }
+
+ function sendMessage($screenname, $body)
+ {
+ $this->queuedConnection()->message($screenname, $body, 'chat');
+ }
+
+ function sendNotice($screenname, $notice)
+ {
+ $msg = $this->formatNotice($notice);
+ $entry = $this->format_entry($notice);
+
+ $this->queuedConnection()->message($screenname, $msg, 'chat', null, $entry);
+ return true;
+ }
+
+ /**
+ * extra information for XMPP messages, as defined by Twitter
+ *
+ * @param Profile $profile Profile of the sending user
+ * @param Notice $notice Notice being sent
+ *
+ * @return string Extra information (Atom, HTML, addresses) in string format
+ */
+
+ function format_entry($notice)
+ {
+ $profile = $notice->getProfile();
+
+ $entry = $notice->asAtomEntry(true, true);
+
+ $xs = new XMLStringer();
+ $xs->elementStart('html', array('xmlns' => 'http://jabber.org/protocol/xhtml-im'));
+ $xs->elementStart('body', array('xmlns' => 'http://www.w3.org/1999/xhtml'));
+ $xs->element('a', array('href' => $profile->profileurl),
+ $profile->nickname);
+ $xs->text(": ");
+ if (!empty($notice->rendered)) {
+ $xs->raw($notice->rendered);
+ } else {
+ $xs->raw(common_render_content($notice->content, $notice));
+ }
+ $xs->text(" ");
+ $xs->element('a', array(
+ 'href'=>common_local_url('conversation',
+ array('id' => $notice->conversation)).'#notice-'.$notice->id
+ ),sprintf(_('[%s]'),$notice->id));
+ $xs->elementEnd('body');
+ $xs->elementEnd('html');
+
+ $html = $xs->getString();
+
+ return $html . ' ' . $entry;
+ }
+
+ function receiveRawMessage($pl)
+ {
+ $from = $this->normalize($pl['from']);
+
+ if ($pl['type'] != 'chat') {
+ $this->log(LOG_WARNING, "Ignoring message of type ".$pl['type']." from $from: " . $pl['xml']->toString());
+ return;
+ }
+
+ if (mb_strlen($pl['body']) == 0) {
+ $this->log(LOG_WARNING, "Ignoring message with empty body from $from: " . $pl['xml']->toString());
+ return;
+ }
+
+ $this->handleIncoming($from, $pl['body']);
+
+ return true;
+ }
+
+ /**
+ * Build a queue-proxied XMPP interface object. Any outgoing messages
+ * will be run back through us for enqueing rather than sent directly.
+ *
+ * @return Queued_XMPP
+ * @throws Exception if server settings are invalid.
+ */
+ function queuedConnection(){
+ if(!isset($this->server)){
+ throw new Exception("must specify a server");
+ }
+ if(!isset($this->port)){
+ throw new Exception("must specify a port");
+ }
+ if(!isset($this->user)){
+ throw new Exception("must specify a user");
+ }
+ if(!isset($this->password)){
+ throw new Exception("must specify a password");
+ }
+
+ return new Queued_XMPP($this, $this->host ?
+ $this->host :
+ $this->server,
+ $this->port,
+ $this->user,
+ $this->password,
+ $this->resource,
+ $this->server,
+ $this->debug ?
+ true : false,
+ $this->debug ?
+ XMPPHP_Log::LEVEL_VERBOSE : null
+ );
+ }
+
+ function onPluginVersion(&$versions)
+ {
+ $versions[] = array('name' => 'XMPP',
+ 'version' => STATUSNET_VERSION,
+ 'author' => 'Craig Andrews, Evan Prodromou',
+ 'homepage' => 'http://status.net/wiki/Plugin:XMPP',
+ 'rawdescription' =>
+ _m('The XMPP plugin allows users to send and receive notices over the XMPP/Jabber network.'));
+ return true;
+ }
+}
+
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-20 18:34:27 +0000