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authorEvan Prodromou <evan@prodromou.name>2008-09-04 15:40:35 -0400
committerEvan Prodromou <evan@prodromou.name>2008-09-04 15:40:35 -0400
commitbd83350c89383ef3eb0237b9f34d3d5ccb5b2651 (patch)
treed9d3b38315e5da3be764a08e4ed1c4c586a9cfa6 /lib
parent660c7e89cdb7cd807ede503f6921fd32f0372561 (diff)
abstract XMPP-related queue handling to a common superclass
darcs-hash:20080904194035-84dde-480b3605862d26eff6a2cac6eec02775628287e4.gz
Diffstat (limited to 'lib')
-rw-r--r--lib/xmppqueuehandler.php89
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/xmppqueuehandler.php b/lib/xmppqueuehandler.php
new file mode 100644
index 000000000..ce82c9a46
--- /dev/null
+++ b/lib/xmppqueuehandler.php
@@ -0,0 +1,89 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * 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/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+require_once(INSTALLDIR.'/lib/queuehandler.php');
+
+/**
+ * Common superclass for all XMPP-using queue handlers. They all need to
+ * service their message queues on idle, and forward any incoming messages
+ * to the XMPP listener connection. So, we abstract out common code to a
+ * superclass.
+ */
+
+class XmppQueueHandler extends QueueHandler {
+
+ function start() {
+ # Low priority; we don't want to receive messages
+ $this->log(LOG_INFO, "INITIALIZE");
+ $this->conn = jabber_connect($this->_id);
+ if ($this->conn) {
+ $this->conn->addEventHandler('message', 'forward_message', $this);
+ $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this);
+ $this->conn->setReconnectTimeout(600);
+ jabber_send_presence("Send me a message to post a notice", 'available', NULL, 'available', -1);
+ }
+ return !is_null($this->conn);
+ }
+
+ function handle_reconnect(&$pl) {
+ $this->conn->processUntil('session_start');
+ $this->conn->presence(NULL, 'available', NULL, 'available', -1);
+ }
+
+ function idle($timeout=0) {
+ # Process the queue for as long as needed
+ try {
+ $this->conn->processTime($timeout);
+ } catch (XMPPHP_Exception $e) {
+ $this->log(LOG_ERROR, "Got an XMPPHP_Exception: " . $e->getMessage());
+ exit(1);
+ }
+ }
+
+ function forward_message(&$pl) {
+ if ($pl['type'] != 'chat') {
+ $this->log(LOG_DEBUG, 'Ignoring message of type ' . $pl['type'] . ' from ' . $pl['from']);
+ return;
+ }
+ $listener = $this->listener();
+ if (strtolower($listener) == strtolower($pl['from'])) {
+ $this->log(LOG_WARNING, 'Ignoring loop message.');
+ return;
+ }
+ $this->log(LOG_INFO, 'Forwarding message from ' . $pl['from'] . ' to ' . $listener);
+ $this->conn->message($this->listener(), $pl['body'], 'chat', NULL, $this->ofrom($pl['from']));
+ }
+
+ function ofrom($from) {
+ $address = "<addresses xmlns='http://jabber.org/protocol/address'>\n";
+ $address .= "<address type='ofrom' jid='$from' />\n";
+ $address .= "</addresses>\n";
+ return $address;
+ }
+
+ function listener() {
+ if (common_config('xmpp', 'listener')) {
+ return common_config('xmpp', 'listener');
+ } else {
+ return jabber_daemon_address() . '/' . common_config('xmpp','resource') . '-listener';
+ }
+ }
+}