]> git.mxchange.org Git - friendica.git/blobdiff - src/App/Router.php
Add OPTIONS endpoint
[friendica.git] / src / App / Router.php
index dfe890fb968809fc0fc429aadf48576fd073a088..0640e589d4eb0b2cbc60d50272a676dc551d56ce 100644 (file)
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2022, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
 
 namespace Friendica\App;
 
-
+use Dice\Dice;
 use FastRoute\DataGenerator\GroupCountBased;
 use FastRoute\Dispatcher;
 use FastRoute\RouteCollector;
 use FastRoute\RouteParser\Std;
-use Friendica\Core\Cache\Duration;
-use Friendica\Core\Cache\ICache;
+use Friendica\Capabilities\ICanHandleRequests;
+use Friendica\Core\Addon;
+use Friendica\Core\Cache\Enum\Duration;
+use Friendica\Core\Cache\Capability\ICanCache;
+use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\Hook;
 use Friendica\Core\L10n;
+use Friendica\Core\Lock\Capability\ICanLock;
+use Friendica\LegacyModule;
+use Friendica\Module\HTTPException\MethodNotAllowed;
+use Friendica\Module\HTTPException\PageNotFound;
+use Friendica\Module\Special\Options;
 use Friendica\Network\HTTPException;
+use Friendica\Network\HTTPException\MethodNotAllowedException;
+use Friendica\Network\HTTPException\NotFoundException;
+use Psr\Log\LoggerInterface;
 
 /**
  * Wrapper for FastRoute\Router
@@ -44,12 +55,20 @@ use Friendica\Network\HTTPException;
  */
 class Router
 {
-       const POST = 'POST';
-       const GET  = 'GET';
+       const DELETE  = 'DELETE';
+       const GET     = 'GET';
+       const PATCH   = 'PATCH';
+       const POST    = 'POST';
+       const PUT     = 'PUT';
+       const OPTIONS = 'OPTIONS';
 
        const ALLOWED_METHODS = [
-               self::POST,
+               self::DELETE,
                self::GET,
+               self::PATCH,
+               self::POST,
+               self::PUT,
+               self::OPTIONS
        ];
 
        /** @var RouteCollector */
@@ -68,31 +87,69 @@ class Router
        /** @var L10n */
        private $l10n;
 
-       /** @var ICache */
+       /** @var ICanCache */
        private $cache;
 
+       /** @var ICanLock */
+       private $lock;
+
+       /** @var Arguments */
+       private $args;
+
+       /** @var IManageConfigValues */
+       private $config;
+
+       /** @var LoggerInterface */
+       private $logger;
+
+       /** @var float */
+       private $dice_profiler_threshold;
+
+       /** @var Dice */
+       private $dice;
+
        /** @var string */
        private $baseRoutesFilepath;
 
+       /** @var array */
+       private $server;
+
        /**
         * @param array               $server             The $_SERVER variable
         * @param string              $baseRoutesFilepath The path to a base routes file to leverage cache, can be empty
         * @param L10n                $l10n
-        * @param ICache              $cache
+        * @param ICanCache           $cache
+        * @param ICanLock            $lock
+        * @param IManageConfigValues $config
+        * @param Arguments           $args
+        * @param LoggerInterface     $logger
+        * @param Dice                $dice
         * @param RouteCollector|null $routeCollector
         */
-       public function __construct(array $server, string $baseRoutesFilepath, L10n $l10n, ICache $cache, RouteCollector $routeCollector = null)
+       public function __construct(array $server, string $baseRoutesFilepath, L10n $l10n, ICanCache $cache, ICanLock $lock, IManageConfigValues $config, Arguments $args, LoggerInterface $logger, Dice $dice, RouteCollector $routeCollector = null)
        {
                $this->baseRoutesFilepath = $baseRoutesFilepath;
                $this->l10n = $l10n;
                $this->cache = $cache;
+               $this->lock = $lock;
+               $this->args = $args;
+               $this->config = $config;
+               $this->dice = $dice;
+               $this->server = $server;
+               $this->logger = $logger;
+               $this->dice_profiler_threshold = $config->get('system', 'dice_profiler_threshold', 0);
+
+               $httpMethod = $this->server['REQUEST_METHOD'] ?? self::GET;
 
-               $httpMethod = $server['REQUEST_METHOD'] ?? self::GET;
                $this->httpMethod = in_array($httpMethod, self::ALLOWED_METHODS) ? $httpMethod : self::GET;
 
                $this->routeCollector = isset($routeCollector) ?
                        $routeCollector :
                        new RouteCollector(new Std(), new GroupCountBased());
+
+               if ($this->baseRoutesFilepath && !file_exists($this->baseRoutesFilepath)) {
+                       throw new HTTPException\InternalServerErrorException('Routes file path does\'n exist.');
+               }
        }
 
        /**
@@ -199,21 +256,19 @@ class Router
        /**
         * Returns the relevant module class name for the given page URI or NULL if no route rule matched.
         *
-        * @param string $cmd The path component of the request URL without the query string
-        *
         * @return string A Friendica\BaseModule-extending class name if a route rule matched
         *
         * @throws HTTPException\InternalServerErrorException
         * @throws HTTPException\MethodNotAllowedException    If a rule matched but the method didn't
         * @throws HTTPException\NotFoundException            If no rule matched
         */
-       public function getModuleClass($cmd)
+       private function getModuleClass()
        {
+               $cmd = $this->args->getCommand();
                $cmd = '/' . ltrim($cmd, '/');
 
                $dispatcher = new Dispatcher\GroupCountBased($this->getCachedDispatchData());
 
-               $moduleClass = null;
                $this->parameters = [];
 
                $routeInfo  = $dispatcher->dispatch($this->httpMethod, $cmd);
@@ -221,7 +276,12 @@ class Router
                        $moduleClass = $routeInfo[1];
                        $this->parameters = $routeInfo[2];
                } elseif ($routeInfo[0] === Dispatcher::METHOD_NOT_ALLOWED) {
-                       throw new HTTPException\MethodNotAllowedException($this->l10n->t('Method not allowed for this module. Allowed method(s): %s', implode(', ', $routeInfo[1])));
+                       if ($this->httpMethod === static::OPTIONS) {
+                               // Default response for HTTP OPTIONS requests in case there is no special treatment
+                               $moduleClass = Options::class;
+                       } else {
+                               throw new HTTPException\MethodNotAllowedException($this->l10n->t('Method not allowed for this module. Allowed method(s): %s', implode(', ', $routeInfo[1])));
+                       }
                } else {
                        throw new HTTPException\NotFoundException($this->l10n->t('Page not found.'));
                }
@@ -229,14 +289,61 @@ class Router
                return $moduleClass;
        }
 
-       /**
-        * Returns the module parameters.
-        *
-        * @return array parameters
-        */
-       public function getModuleParameters()
+       public function getModule(?string $module_class = null): ICanHandleRequests
        {
-               return $this->parameters;
+               $module_parameters = [$this->server];
+               /**
+                * ROUTING
+                *
+                * From the request URL, routing consists of obtaining the name of a BaseModule-extending class of which the
+                * post() and/or content() static methods can be respectively called to produce a data change or an output.
+                **/
+               try {
+                       $module_class        = $module_class ?? $this->getModuleClass();
+                       $module_parameters[] = $this->parameters;
+               } catch (MethodNotAllowedException $e) {
+                       $module_class = MethodNotAllowed::class;
+               } catch (NotFoundException $e) {
+                       $moduleName = $this->args->getModuleName();
+                       // Then we try addon-provided modules that we wrap in the LegacyModule class
+                       if (Addon::isEnabled($moduleName) && file_exists("addon/{$moduleName}/{$moduleName}.php")) {
+                               //Check if module is an app and if public access to apps is allowed or not
+                               $privateapps = $this->config->get('config', 'private_addons', false);
+                               if ((!local_user()) && Hook::isAddonApp($moduleName) && $privateapps) {
+                                       throw new MethodNotAllowedException($this->l10n->t("You must be logged in to use addons. "));
+                               } else {
+                                       include_once "addon/{$moduleName}/{$moduleName}.php";
+                                       if (function_exists($moduleName . '_module')) {
+                                               $module_parameters[] = "addon/{$moduleName}/{$moduleName}.php";
+                                               $module_class        = LegacyModule::class;
+                                       }
+                               }
+                       }
+
+                       /* Finally, we look for a 'standard' program module in the 'mod' directory
+                        * We emulate a Module class through the LegacyModule class
+                        */
+                       if (!$module_class && file_exists("mod/{$moduleName}.php")) {
+                               $module_parameters[] = "mod/{$moduleName}.php";
+                               $module_class        = LegacyModule::class;
+                       }
+
+                       $module_class = $module_class ?: PageNotFound::class;
+               }
+
+               $stamp = microtime(true);
+
+               try {
+                       /** @var ICanHandleRequests $module */
+                       return $this->dice->create($module_class, $module_parameters);
+               } finally {
+                       if ($this->dice_profiler_threshold > 0) {
+                               $dur = floatval(microtime(true) - $stamp);
+                               if ($dur >= $this->dice_profiler_threshold) {
+                                       $this->logger->warning('Dice module creation lasts too long.', ['duration' => round($dur, 3), 'module' => $module_class, 'parameters' => $module_parameters]);
+                               }
+                       }
+               }
        }
 
        /**
@@ -249,7 +356,7 @@ class Router
        {
                $dispatchData = [];
 
-               if ($this->baseRoutesFilepath && file_exists($this->baseRoutesFilepath)) {
+               if ($this->baseRoutesFilepath) {
                        $dispatchData = require $this->baseRoutesFilepath;
                        if (!is_array($dispatchData)) {
                                throw new HTTPException\InternalServerErrorException('Invalid base routes file');
@@ -268,20 +375,42 @@ class Router
         * The cached "routerDispatchData" lasts for a day, and must be cleared manually when there
         * is any changes in the enabled addons list.
         *
+        * Additionally, we check for the base routes file last modification time to automatically
+        * trigger re-computing the dispatch data.
+        *
         * @return array|mixed
         * @throws HTTPException\InternalServerErrorException
         */
        private function getCachedDispatchData()
        {
                $routerDispatchData = $this->cache->get('routerDispatchData');
+               $lastRoutesFileModifiedTime = $this->cache->get('lastRoutesFileModifiedTime');
+               $forceRecompute = false;
+
+               if ($this->baseRoutesFilepath) {
+                       $routesFileModifiedTime = filemtime($this->baseRoutesFilepath);
+                       $forceRecompute = $lastRoutesFileModifiedTime != $routesFileModifiedTime;
+               }
 
-               if ($routerDispatchData) {
+               if (!$forceRecompute && $routerDispatchData) {
                        return $routerDispatchData;
                }
 
+               if (!$this->lock->acquire('getCachedDispatchData', 0)) {
+                       // Immediately return uncached data when we can't aquire a lock
+                       return $this->getDispatchData();
+               }
+
                $routerDispatchData = $this->getDispatchData();
 
                $this->cache->set('routerDispatchData', $routerDispatchData, Duration::DAY);
+               if (!empty($routesFileModifiedTime)) {
+                       $this->cache->set('lastRoutesFileModifiedTime', $routesFileModifiedTime, Duration::MONTH);
+               }
+
+               if ($this->lock->isLocked('getCachedDispatchData')) {
+                       $this->lock->release('getCachedDispatchData');
+               }
 
                return $routerDispatchData;
        }