move the private namespace OC into lib/private - OCP will stay in lib/public

Conflicts:
	lib/private/vcategories.php

1 files changed, 85 insertions, 0 deletions

diff --git a/lib/private/eventsource.php b/lib/private/eventsource.php
new file mode 100644
index 00000000000..a83084d9251
--- /dev/null
+++ b/lib/private/eventsource.php
@@ -0,0 +1,85 @@
+<?php
+
+/**
+* ownCloud
+*
+* @author Robin Appelman
+* @copyright 2012 Robin Appelman icewind1991@gmail.com
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either
+* version 3 of the License, or any later version.
+*
+* This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+/**
+ * wrapper for server side events (http://en.wikipedia.org/wiki/Server-sent_events)
+ * includes a fallback for older browsers and IE
+ *
+ * use server side events with caution, to many open requests can hang the server
+ */
+class OC_EventSource{
+	private $fallback;
+	private $fallBackId=0;
+
+	public function __construct() {
+		OC_Util::obEnd();
+		header('Cache-Control: no-cache');
+		$this->fallback=isset($_GET['fallback']) and $_GET['fallback']=='true';
+		if($this->fallback) {
+			$this->fallBackId=$_GET['fallback_id'];
+			header("Content-Type: text/html");
+			echo str_repeat('<span></span>'.PHP_EOL, 10); //dummy data to keep IE happy
+		}else{
+			header("Content-Type: text/event-stream");
+		}
+		if( !OC_Util::isCallRegistered()) {
+			$this->send('error', 'Possible CSRF attack. Connection will be closed.');
+			exit();
+		}
+		flush();
+
+	}
+
+	/**
+	 * send a message to the client
+	 * @param string $type
+	 * @param mixed $data
+	 *
+	 * if only one parameter is given, a typeless message will be send with that parameter as data
+	 */
+	public function send($type, $data=null) {
+		if(is_null($data)) {
+			$data=$type;
+			$type=null;
+		}
+		if($this->fallback) {
+			$response='<script type="text/javascript">window.parent.OC.EventSource.fallBackCallBack('
+				.$this->fallBackId.',"'.$type.'",'.json_encode($data).')</script>'.PHP_EOL;
+			echo $response;
+		}else{
+			if($type) {
+				echo 'event: '.$type.PHP_EOL;
+			}
+			echo 'data: '.json_encode($data).PHP_EOL;
+		}
+		echo PHP_EOL;
+		flush();
+	}
+
+	/**
+	 * close the connection of the even source
+	 */
+	public function close() {
+		$this->send('__internal__', 'close');//server side closing can be an issue, let the client do it
+	}
+}