1 files changed, 69 insertions, 0 deletions
diff --git a/3dparty/Sabre/DAV/Exception/PreconditionFailed.php b/3dparty/Sabre/DAV/Exception/PreconditionFailed.php
new file mode 100644
index 00000000000..ebcb9f5b9ac
--- /dev/null
+++ b/3dparty/Sabre/DAV/Exception/PreconditionFailed.php
@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * PreconditionFailed 
+ *
+ * This exception is normally thrown when a client submitted a conditional request, 
+ * like for example an If, If-None-Match or If-Match header, which caused the HTTP 
+ * request to not execute (the condition of the header failed)
+ * 
+ * @package Sabre
+ * @subpackage DAV
+ * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class Sabre_DAV_Exception_PreconditionFailed extends Sabre_DAV_Exception {
+
+    /**
+     * When this exception is thrown, the header-name might be set.
+     * 
+     * This allows the exception-catching code to determine which HTTP header
+     * caused the exception.
+     * 
+     * @var string 
+     */
+    public $header = null;
+
+    /**
+     * Create the exception 
+     * 
+     * @param string $message 
+     * @param string $header 
+     */
+    public function __construct($message, $header=null) {
+
+        parent::__construct($message);
+        $this->header = $header;
+
+    } 
+
+    /**
+     * Returns the HTTP statuscode for this exception 
+     *
+     * @return int
+     */
+    public function getHTTPCode() {
+
+        return 412; 
+
+    }
+
+    /**
+     * This method allows the exception to include additonal information into the WebDAV error response 
+     *
+     * @param Sabre_DAV_Server $server
+     * @param DOMElement $errorNode 
+     * @return void
+     */
+    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
+        
+        if ($this->header) {
+            $prop = $errorNode->ownerDocument->createElement('s:header');
+            $prop->nodeValue = $this->header;
+            $errorNode->appendChild($prop);
+        }
+
+    }
+
+}