Made the IMAP plugin work in the style of the new queue/iomanagers

plugins/Imap/imapmanager.php

@@ -0,0 +1,129 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * IMAP IO Manager
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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  Plugin
+ * @package   StatusNet
+ * @author    Craig Andrews <candrews@integralblue.com>
+ * @copyright 2009-2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+class ImapManager extends IoManager
+{
+    protected $conn = null;
+
+    function __construct($plugin)
+    {
+        $this->plugin = $plugin;
+    }
+
+    /**
+     * Fetch the singleton manager for the current site.
+     * @return mixed ImapManager, or false if unneeded
+     */
+    public static function get()
+    {
+        throw new Exception('ImapManager should be created using it\'s constructor, not the static get method');
+    }
+
+    /**
+     * Lists the IM connection socket to allow i/o master to wake
+     * when input comes in here as well as from the queue source.
+     *
+     * @return array of resources
+     */
+    public function getSockets()
+    {
+        return array();
+    }
+
+    /**
+     * Tell the i/o master we need one instance for each supporting site
+     * being handled in this process.
+     */
+    public static function multiSite()
+    {
+        return IoManager::INSTANCE_PER_SITE;
+    }
+
+    /**
+     * Initialize connection to server.
+     * @return boolean true on success
+     */
+    public function start($master)
+    {
+        if(parent::start($master))
+        {
+            $this->conn = $this->connect();
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+    public function handleInput($socket)
+    {
+        $this->check_mailbox();
+        return true;
+    }
+
+    public function poll()
+    {
+        return $this->check_mailbox() > 0;
+    }
+    
+    function pollInterval()
+    {
+        return $this->plugin->poll_frequency;
+    }
+    
+    protected function connect()
+    {
+        $this->conn = imap_open($this->plugin->mailbox, $this->plugin->user, $this->plugin->password);
+        if($this->conn){
+            common_log(LOG_INFO, "Connected");
+            return $this->conn;
+        }else{
+            common_log(LOG_INFO, "Failed to connect: " . imap_last_error());
+            return $this->conn;
+        }
+    }
+
+    protected function check_mailbox()
+    {
+        imap_ping($this->conn);
+        $count = imap_num_msg($this->conn);
+        common_log(LOG_INFO, "Found $count messages");
+        if($count > 0){
+            $handler = new IMAPMailHandler();
+            for($i=1; $i <= $count; $i++)
+            {
+                $rawmessage = imap_fetchheader($this->conn, $count, FT_PREFETCHTEXT) . imap_body($this->conn, $i);
+                $handler->handle_message($rawmessage);
+                imap_delete($this->conn, $i);
+            }
+            imap_expunge($this->conn);
+            common_log(LOG_INFO, "Finished processing messages");
+        }
+        return $count;
+    }
+}