Use exceptions to process incorrect requests

ajax/otpoll.php

@@ -34,7 +34,6 @@
  * @source: http://www.webodf.org/
  * @source: http://gitorious.org/webodf/webodf/
  */
-
 // OCP\JSON::checkLoggedIn();
 // OCP\JSON::checkAppEnabled('office');
 // session_write_close();
@@ -50,11 +49,11 @@ function bogusSession($i){
 	return $bs;
 }
 
-$request = new OCA\Office\Request();
-$command = $request->getParam('command');
-
-$response = array();
-switch ($command){
+try{
+	$request = new OCA\Office\Request();
+	$command = $request->getParam('command');
+	$response = array();
+	switch ($command){
 		case 'session-list':
 			$response["session_list"] = array(bogusSession(0), bogusSession(1));
 			break;
@@ -73,10 +72,14 @@ switch ($command){
 
 				//if $postobject['args']['seq_head'] is the most recent op in the ops-table:
 				// append all ops in $postobject['args']['client_ops'] to the ops-table
-			if ($seqHead>$currentHead){
+				if ($seqHead > $currentHead){
 					foreach ($ops as $op){
 						$op['opspec'] = json_encode($op['opspec']);
+						try{
 							OCA\Office\Op::add($op);
+						} catch (Exception $e){
+							
+						}
 					}
 				} else {
 					//     result: 'conflict',
@@ -87,32 +90,37 @@ switch ($command){
 					$last = end($response["ops"]);
 					$response["headSeq"] = $last['seq'];
 				}
-			
 			} else {
-			// Error :)
+				// Error - empty seq_head passed :)
+				throw new BadRequestException();
 			}
 
-		/* 
-		 * try {
-		 * OCA\Office\Op::add(
-		 *	array(
-		 *		'es_id' => ES_ID,
-		 *		'seq' => SEQ,
-		 *		'member' => MEMBER,
-		 *		'opspec' => OPSPEC
-		 *	)
-		 * );
-		 * } catch (Exception $e) {
-		 *	
-		 * }
-		 */
 			break;
 		default:
+			$ex = new BadRequestException();
+			$ex->setBody("{err:'bad request: [" . $request->getRawRequest() . "]'}");
+			throw $ex;
+			break;
+	}
+
+	\OCP\JSON::success($response);
+} catch (BadRequestException $e){
 	header('HTTP/1.1 400: BAD REQUEST');
 	print("");
-		print("{err:'bad request: [$postbody]'}");
+	print($e->getBody());
 	print("");
-		exit();
 }
+exit();
 	
-\OCP\JSON::success($response);
+class BadRequestException extends Exception {
+
+	protected $body = "";
+
+	public function setBody($body){
+		$this->body = $body;
+	}
+
+	public function getBody(){
+		return $this->body;
+	}
+}

lib/request.php

@@ -5,10 +5,22 @@ namespace OCA\Office;
 class Request {
 	protected $data = array();
 	
+	protected $rawRequest = '';
+	
 	public function __construct(){
-		$this->data = json_decode(file_get_contents('php://input'), true);
+		$this->rawRequest = file_get_contents('php://input');
+		$this->data = json_decode($this->rawRequest, true);
 	}
+	
+	public function getRawRequest(){
+		return $this->rawRequest;
+	}
+
 	public function getParam($name){
+		if (empty($name)){
+			return $this->data;
+		}
+		
 		$path = explode('/', $name);
 		
 		reset($path);