PHP Sabre_DAV_Server::checkPreconditions方法代码示例

 /**
  * This event is triggered before any HTTP request is handled.
  *
  * We use this to intercept GET calls to notification nodes, and return the
  * proper response.
  *
  * @param string $method
  * @param string $path
  * @return void
  */
 public function beforeMethod($method, $path)
 {
     if ($method !== 'GET') {
         return;
     }
     try {
         $node = $this->server->tree->getNodeForPath($path);
     } catch (Sabre_DAV_Exception_NotFound $e) {
         return;
     }
     if (!$node instanceof Sabre_CalDAV_Notifications_INode) {
         return;
     }
     if (!$this->server->checkPreconditions(true)) {
         return false;
     }
     $dom = new DOMDocument('1.0', 'UTF-8');
     $dom->formatOutput = true;
     $root = $dom->createElement('cs:notification');
     foreach ($this->server->xmlNamespaces as $namespace => $prefix) {
         $root->setAttribute('xmlns:' . $prefix, $namespace);
     }
     $dom->appendChild($root);
     $node->getNotificationType()->serializeBody($this->server, $root);
     $this->server->httpResponse->setHeader('Content-Type', 'application/xml');
     $this->server->httpResponse->setHeader('ETag', $node->getETag());
     $this->server->httpResponse->sendStatus(200);
     $this->server->httpResponse->sendBody($dom->saveXML());
     return false;
 }

 /**
  * Patch an uri
  *
  * The WebDAV patch request can be used to modify only a part of an 
  * existing resource. If the resource does not exist yet and the first
  * offset is not 0, the request fails
  *
  * @param string $uri
  * @return void
  */
 protected function httpPatch($uri)
 {
     // Get the node. Will throw a 404 if not found
     $node = $this->server->tree->getNodeForPath($uri);
     if (!$node instanceof Sabre_DAV_PartialUpdate_IFile) {
         throw new Sabre_DAV_Exception_MethodNotAllowed('The target resource does not support the PATCH method.');
     }
     $range = $this->getHTTPUpdateRange();
     if (!$range) {
         throw new Sabre_DAV_Exception_BadRequest('No valid "X-Update-Range" found in the headers');
     }
     $contentType = strtolower($this->server->httpRequest->getHeader('Content-Type'));
     if ($contentType != 'application/x-sabredav-partialupdate') {
         throw new Sabre_DAV_Exception_UnsupportedMediaType('Unknown Content-Type header "' . $contentType . '"');
     }
     $len = $this->server->httpRequest->getHeader('Content-Length');
     // Load the begin and end data
     $start = $range[0] ? $range[0] : 0;
     $end = $range[1] ? $range[1] : $len - 1;
     // Check consistency
     if ($end < $start) {
         throw new Sabre_DAV_Exception_RequestedRangeNotSatisfiable('The end offset (' . $range[1] . ') is lower than the start offset (' . $range[0] . ')');
     }
     if ($end - $start + 1 != $len) {
         throw new Sabre_DAV_Exception_RequestedRangeNotSatisfiable('Actual data length (' . $len . ') is not consistent with begin (' . $range[0] . ') and end (' . $range[1] . ') offsets');
     }
     // Checking If-None-Match and related headers.
     if (!$this->server->checkPreconditions()) {
         return;
     }
     if (!$this->server->broadcastEvent('beforeWriteContent', array($uri, $node, null))) {
         return;
     }
     $body = $this->server->httpRequest->getBody();
     $etag = $node->putRange($body, $start - 1);
     $this->server->broadcastEvent('afterWriteContent', array($uri, $node));
     $this->server->httpResponse->setHeader('Content-Length', '0');
     if ($etag) {
         $this->server->httpResponse->setHeader('ETag', $etag);
     }
     $this->server->httpResponse->sendStatus(204);
     return false;
 }

 /**
  * @covers Sabre_DAV_Server::checkPreconditions
  */
 public function testIfUnmodifiedSinceInvalidDate()
 {
     $root = new Sabre_DAV_SimpleCollection('root', array(new Sabre_DAV_ServerPreconditionsNode()));
     $server = new Sabre_DAV_Server($root);
     $httpRequest = new Sabre_HTTP_Request(array('HTTP_IF_UNMODIFIED_SINCE' => 'Sun, 06 Nov 1984 08:49:37 CET', 'REQUEST_URI' => '/foo'));
     $server->httpRequest = $httpRequest;
     $server->httpResponse = new Sabre_HTTP_ResponseMock();
     $this->assertTrue($server->checkPreconditions());
 }