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<?php |
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/** |
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* @package midcom.routing |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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namespace midcom\routing; |
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use Symfony\Component\HttpFoundation\Request; |
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use midcom; |
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use midcom_error_forbidden; |
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use midcom_error_notfound; |
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use midcom_baseclasses_components_viewer; |
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use Symfony\Component\Routing\Router; |
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use Symfony\Component\Routing\Exception\ResourceNotFoundException; |
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/** |
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* @package midcom.routing |
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*/ |
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class resolver |
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{ |
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/** |
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* @var Request |
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*/ |
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private $request; |
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/** |
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* @var parser |
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*/ |
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private $parser; |
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/** |
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* @var \midcom_core_context |
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*/ |
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private $context; |
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/** |
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* @param Request $request |
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*/ |
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public function __construct(Request $request) |
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{ |
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$this->request = $request; |
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$this->context = $request->attributes->get('context'); |
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$this->parser = new parser($this->context); |
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} |
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public static function get_router(string $component, array $request_switch = []) : Router |
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{ |
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$loader = new loader; |
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if (!empty($request_switch)) { |
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return new Router($loader, $request_switch); |
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} |
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$identifier = str_replace('.', '_', $component); |
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return new Router($loader, $component, [ |
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'cache_dir' => midcom::get()->getCacheDir() . '/routing/' . $identifier, |
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]); |
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} |
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/** |
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* @throws midcom_error_notfound |
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*/ |
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public function process_midcom() : bool |
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{ |
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if ($url = $this->parser->find_urlmethod()) { |
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$router = self::get_router('midcom'); |
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$router->getContext() |
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->fromRequest($this->request); |
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try { |
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$result = $router->match($url); |
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} catch (ResourceNotFoundException $e) { |
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throw new midcom_error_notfound('This URL method is unknown.'); |
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} |
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$this->request->attributes->add($result); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Basically this method will parse the URL and search for a component that can |
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* handle the request. If one is found, it will process the request, if not, it |
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* will report an error, depending on the situation. |
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* |
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* Details: The logic will traverse the node tree, and for the last node it will load |
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* the component that is responsible for it. This component gets the chance to |
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* accept the request, which is basically a call to can_handle. If the component |
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* declares to be able to handle the call, its handle function is executed. Depending |
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* if the handle was successful or not, it will either display an HTTP error page or |
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* prepares the content handler to display the content later on. |
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* |
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* If the parsing process doesn't find any component that declares to be able to |
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* handle the request, an HTTP 404 - Not Found error is triggered. |
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* |
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* @throws midcom_error_forbidden |
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* @throws midcom_error_notfound |
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*/ |
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public function process_component() |
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{ |
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$topic = $this->parser->find_topic(); |
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$this->request->attributes->set('argv', $this->parser->argv); |
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// Get component interface class |
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$component_interface = midcom::get()->componentloader->get_interface_class($topic->component); |
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$viewer = $component_interface->get_viewer($topic); |
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// Make can_handle check |
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$parameters = $this->get_parameters($viewer); |
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$viewer->prepare_handler($parameters); |
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$this->context->set_key(MIDCOM_CONTEXT_SHOWCALLBACK, [$viewer, 'show']); |
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foreach ($parameters as $key => $value) { |
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if ($key === 'handler') { |
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$key = '_controller'; |
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$value[1] = '_handler_' . $value[1]; |
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} elseif ($key === '_route') { |
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$key = 'handler_id'; |
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} |
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$this->request->attributes->set($key, $value); |
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} |
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$viewer->handle(); |
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} |
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/** |
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* Checks against all registered handlers if a valid one can be found. |
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*/ |
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private function get_parameters(midcom_baseclasses_components_viewer $viewer) : array |
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{ |
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$argv = $this->request->attributes->get('argv', []); |
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$prefix = $this->context->get_key(MIDCOM_CONTEXT_ANCHORPREFIX); |
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// Check if we need to start up a plugin. |
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if ( count($argv) > 1 |
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&& $config = plugin::get_config($argv[0], $argv[1])) { |
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$namespace = array_shift($argv); |
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$name = array_shift($argv); |
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$prefix .= $namespace . '/' . $name . '/'; |
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debug_add("Loading the plugin {$namespace}/{$name}"); |
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$viewer->load_plugin($name, new $config['class'], $config); |
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} |
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$url = '/'; |
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if (!empty($argv)) { |
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$url .= implode('/', $argv) . '/'; |
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} |
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$router = $viewer->get_router(); |
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$router->getContext() |
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->fromRequest($this->request) |
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->setBaseUrl(substr($prefix, 0, -1)); |
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try { |
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$result = $router->match($url); |
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} catch (ResourceNotFoundException $e) { |
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// No match |
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debug_add("Component {$viewer->_component} in {$viewer->_topic->name} declared unable to handle request.", MIDCOM_LOG_INFO); |
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throw new midcom_error_notfound("This page is not available on this server."); |
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} |
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$result['args'] = array_values(array_filter($result, function($name) { |
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return !str_starts_with($name, '_'); |
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}, ARRAY_FILTER_USE_KEY)); |
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return $result; |
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} |
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} |
flack /
openpsa
