/**
* Detect an instance of a representation class using a matched route, or default representation classes
* @param RouteMetaData $route
* @param Mapping\RouteMetaData $route
* @throws UnableToMatchRepresentationException
* @throws RepresentationException - if unable to instantiate a representation object from config settings
* @return AbstractRepresentation $representation
*/
protected function getDeterminedRepresentation(Mapping\RouteMetaData &$route = null)
{
$representations = !is_null($route) ? $route->getClassMetaData()->getRepresentations() : $this->config->getDefaultRepresentations();
if (empty($representations)) {
throw RepresentationException::noRepresentationsSetForRoute($route->getName(), $route->getClassMetaData()->getClassName());
}
$representationObjects = array();
foreach ($representations as $representation) {
if (!is_object($representation)) {
// Check if the class is namespaced, if so instantiate from root
$className = strstr($representation, '\\') !== false ? '\\' . ltrim($representation, '\\') : $representation;
$className = !class_exists($className) ? '\\DrestCommon\\Representation\\' . ltrim($className, '\\') : $className;
if (!class_exists($className)) {
throw RepresentationException::unknownRepresentationClass($representation);
}
$representationObjects[] = $representation = new $className();
}
if (!$representation instanceof AbstractRepresentation) {
throw RepresentationException::representationMustBeInstanceOfDrestRepresentation();
}
switch ($this->request->getHttpMethod()) {
// Match on content option
case Request::METHOD_GET:
// This representation matches the required media type requested by the client
if ($representation->isExpectedContent($this->config->getDetectContentOptions(), $this->request)) {
return $representation;
}
break;
// Match on content-type
// Match on content-type
case Request::METHOD_POST:
case Request::METHOD_PUT:
case Request::METHOD_PATCH:
if ($representation->getContentType() === $this->request->getHeaders('Content-Type')) {
return $representation;
}
break;
}
}
// For get requests with "415 for no media match" set on, throw an exception
if ($this->request->getHttpMethod() == Request::METHOD_GET && $this->config->get415ForNoMediaMatchSetting()) {
throw UnableToMatchRepresentationException::noMatch();
}
// Return the first instantiated representation instance
if (isset($representationObjects[0])) {
return $representationObjects[0];
}
// We have no representation instances from either annotations or config object
throw UnableToMatchRepresentationException::noMatch();
}
/**
* Does this request match the route pattern
* @param Request $request
* @param boolean $matchVerb - Whether you want to match the route using the request HTTP verb
* - useful for OPTIONS requests to provide route info
* @param string $basePath - add a base path to the route pattern
* @return boolean $result
*/
public function matches(Request $request, $matchVerb = true, $basePath = null)
{
// If we're matching the verb and we've defined them, ensure the method used is in our list of registered verbs
if ($matchVerb && $this->routeMetaData->usesHttpVerbs() && !$this->methodIsInOurListOfAllowedVerbs($request->getHttpMethod())) {
return false;
}
$patternAsRegex = $this->getMatchRegexPattern($basePath);
//Cache URL params' names and values if this route matches the current HTTP request
if (!preg_match('#^' . $patternAsRegex . '$#', $request->getPath(), $paramValues)) {
return false;
}
// Process the param names and save them on the route params
$this->processRouteParams($paramValues);
// Check the route conditions
if (!$this->routeConditionsAreValid()) {
return false;
}
return true;
}
/**
* Determine the representation by inspecting the HTTP method
* @param AbstractRepresentation $representation
* @param array $detectContentOptions - Eg array(self::DETECT_CONTENT_HEADER => 'Accept')
* @return AbstractRepresentation|null
*/
protected function determineRepresentationByHttpMethod(AbstractRepresentation $representation, array $detectContentOptions = [])
{
switch ($this->request->getHttpMethod()) {
// Match on content option
case Request::METHOD_GET:
// This representation matches the required media type requested by the client
if ($representation->isExpectedContent($detectContentOptions, $this->request)) {
return $representation;
}
break;
// Match on content-type
// Match on content-type
case Request::METHOD_POST:
case Request::METHOD_PUT:
case Request::METHOD_PATCH:
if ($representation->getContentType() === $this->request->getHeaders('Content-Type')) {
return $representation;
}
break;
}
return null;
}
/**
* Does this request matches the route pattern
* @param Request $request
* @param boolean $matchVerb - Whether you want to match the route using the request HTTP verb
* - useful for OPTIONS requests
* @param string $basePath - add a base path to the route pattern
* @return boolean $result
*/
public function matches(Request $request, $matchVerb = true, $basePath = null)
{
if ($matchVerb && $this->usesHttpVerbs()) {
try {
$method = $request->getHttpMethod();
if (!in_array($method, $this->verbs)) {
return false;
}
} catch (DrestException $e) {
return false;
}
}
//Convert URL params into regex patterns, construct a regex for this route, init params
$routePattern = is_null($basePath) ? (string) $this->route_pattern : '/' . $basePath . '/' . ltrim((string) $this->route_pattern, '/');
$patternAsRegex = preg_replace_callback('#:([\\w]+)\\+?#', array($this, 'matchesCallback'), str_replace(')', ')?', $routePattern));
if (substr($this->route_pattern, -1) === '/') {
$patternAsRegex .= '?';
}
//Cache URL params' names and values if this route matches the current HTTP request
if (!preg_match('#^' . $patternAsRegex . '$#', $request->getPath(), $paramValues)) {
return false;
}
foreach ($this->param_names as $name) {
if (isset($paramValues[$name])) {
if (isset($this->param_names_path[$name])) {
$parts = explode('/', urldecode($paramValues[$name]));
$this->route_params[$name] = array_shift($parts);
$this->unmapped_route_params = $parts;
} else {
$this->route_params[$name] = urldecode($paramValues[$name]);
}
}
}
// Check the route conditions
foreach ($this->route_conditions as $key => $condition) {
if (!preg_match('/^' . $condition . '$/', $this->route_params[$key])) {
$this->param_names_path = $this->route_params = $this->unmapped_route_params = array();
return false;
}
}
return true;
}
