1 files changed, 68 insertions, 0 deletions
diff --git a/lib/json.php b/lib/json.php
new file mode 100644
index 00000000000..47d5e82fbb0
--- /dev/null
+++ b/lib/json.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright (c) 2011 Bart Visscher <bartv@thisnet.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+class OC_JSON{
+	static protected $send_content_type_header = false;
+	/**
+	 * set Content-Type header to jsonrequest
+	 */
+	public static function setContentTypeHeader($type='application/jsonrequest'){
+		if (!self::$send_content_type_header){
+			// We send json data
+			header( 'Content-Type: '.$type );
+			self::$send_content_type_header = true;
+		}
+	}
+
+	/**
+	* Check if the user is logged in, send json error msg if not
+	*/
+	public static function checkLoggedIn(){
+		if( !OC_User::isLoggedIn()){
+			$l = new OC_L10N('core');
+			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
+			exit();
+		}
+	}
+
+	/**
+	* Check if the user is a admin, send json error msg if not
+	*/
+	public static function checkAdminUser(){
+		self::checkLoggedIn();
+		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )){
+			$l = new OC_L10N('core');
+			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
+			exit();
+		}
+	}
+
+	/**
+	* Send json error msg
+	*/
+	public static function error($data = array()){
+		$data['status'] = 'error';
+		self::encodedPrint($data);
+	}
+
+	/**
+	* Send json success msg
+	*/
+	public static function success($data = array()){
+		$data['status'] = 'success';
+		self::encodedPrint($data);
+	}
+
+	/**
+	* Encode and print $data in json format
+	*/
+	public static function encodedPrint($data){
+		self::setContentTypeHeader();
+		echo json_encode($data);
+	}
+}