allow to set memory limit and execution time via config, off by default

Author: Matthias Lill

Config/bootstrap.php

@@ -5,11 +5,14 @@
  * PHP 5
  * CakePHP 2
  *
+ * @todo place in own config file Config/databaseblobfile.php
  */
 Configure::write(
 	'DatabaseBlobFile',
 	array(
 		'cdn_host' => '',
+		'memory_limit' => null, // eg '128M' or '1024M'
+		'execution_time' => null, // eg 300
 		'sizes' => array(
 			'md1' => array('resizewidth',67),
 			'md2' => array('resizewidth',165),

Lib/BlobFileHandler.php

@@ -5,6 +5,20 @@ class BlobFileHandler {
 	public $resource;
 	public $resourceInfo;
 
+	public function __construct() {
+
+		/**
+		 * processing images may need more resources than an avereage page request
+		 */
+		if (Configure::read('DatabaseBlobFile.memory_limit')) {
+			ini_set('memory_limit', Configure::read('DatabaseBlobFile.memory_limit'));
+		}
+
+		if (Configure::read('DatabaseBlobFile.execution_time')) {
+	    	set_time_limit(Configure::read('DatabaseBlobFile.execution_time'));
+		}
+
+	}
 
 	/**
 	 * add a message to stack (for outside checking)