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<?php |
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namespace Anax\Route; |
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use Anax\Commons\ContainerInjectableInterface; |
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use Anax\Commons\ContainerInjectableTrait; |
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use Anax\Route\Exception\ConfigurationException; |
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use Anax\Route\Exception\ForbiddenException; |
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use Anax\Route\Exception\InternalErrorException; |
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use Anax\Route\Exception\NotFoundException; |
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/** |
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* A router to hold and match routes. |
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*/ |
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class Router implements ContainerInjectableInterface |
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{ |
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use ContainerInjectableTrait; |
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/** |
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* @var array $routes all the routes. |
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* @var array $internalRoutes all internal routes. |
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* @var Route $lastRoute last route that was matched and called. |
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*/ |
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private $routes = []; |
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private $internalRoutes = []; |
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private $lastRoute = null; |
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/** |
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* @const DEVELOPMENT Verbose with exceptions. |
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* @const PRODUCTION Exceptions turns into 500. |
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*/ |
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const DEVELOPMENT = 0; |
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const PRODUCTION = 1; |
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/** |
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* @var integer $mode current mode. |
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*/ |
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private $mode = self::DEVELOPMENT; |
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/** |
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* Set Router::DEVELOPMENT or Router::PRODUCTION mode. |
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* |
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* @param integer $mode which mode to set. |
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* |
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* @return self to enable chaining. |
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*/ |
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public function setMode($mode) : object |
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{ |
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$this->mode = $mode; |
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return $this; |
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} |
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/** |
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* Add routes from an array where the array looks like this: |
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* [ |
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* "mount" => null|string, // Where to mount the routes |
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* "routes" => [ // All routes in this array |
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* [ |
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* "info" => "Just say hi.", |
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* "method" => null, |
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* "path" => "hi", |
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* "handler" => function () { |
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* return "Hi."; |
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* }, |
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* ] |
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* ] |
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* ] |
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* |
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* @throws ConfigurationException |
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* |
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* @param array $routes containing the routes to add. |
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* |
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* @return self to enable chaining. |
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*/ |
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public function addRoutes(array $routes) : object |
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{ |
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if (!(isset($routes["routes"]) && is_array($routes["routes"]))) { |
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throw new ConfigurationException("No routes found, missing key 'routes' in configuration array."); |
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} |
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foreach ($routes["routes"] as $route) { |
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if ($route["internal"] ?? false) { |
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$this->addInternalRoute( |
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$route["path"] ?? null, |
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$route["handler"] ?? null, |
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$route["info"] ?? null |
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); |
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continue; |
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} |
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$mount = $this->createMountPath( |
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$routes["mount"] ?? null, |
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$route["mount"] ?? null |
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); |
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$this->addRoute( |
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$route["method"] ?? null, |
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$mount, |
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$route["path"] ?? null, |
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$route["handler"] ?? null, |
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$route["info"] ?? null |
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); |
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} |
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return $this; |
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} |
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/** |
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* Prepare the mount string from configuration, use $mount1 or $mount2, |
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* the latter supersedes the first. |
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* |
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* @param string $mount1 first suggestion to mount path. |
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* @param string $mount2 second suggestion to mount path, ovverides |
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* the first. |
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* |
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* @return string|null as mount path. |
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*/ |
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private function createMountPath( |
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string $mount1 = null, |
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string $mount2 = null |
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) { |
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$mount = null; |
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if ($mount1 && $mount2) { |
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$mount = rtrim($mount1, "/") . "/" . rtrim($mount2, "/"); |
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return $mount; |
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} |
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if ($mount1) { |
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$mount = $mount1; |
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} |
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if ($mount2) { |
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$mount = $mount2; |
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} |
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trim($mount); |
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rtrim($mount, "/"); |
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$mount = empty($mount) ? null : $mount; |
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return $mount; |
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} |
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/** |
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* Add a route with a request method, a path rule to match and an action |
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* as the callback. Adding several path rules (array) results in several |
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* routes being created. |
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* |
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* @param string|array $method as request method to support |
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* @param string $mount prefix to $path |
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* @param string|array $path for this route, array for several |
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* paths |
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* @param string|array|callable $handler for this path, callable or equal |
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* @param string $info description of the route |
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* |
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* @return void. |
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*/ |
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public function addRoute( |
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$method, |
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$mount = null, |
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$path = null, |
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$handler = null, |
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string $info = null |
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) : void { |
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if (!is_array($path)) { |
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$path = [$path]; |
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} |
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foreach ($path as $thePath) { |
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$route = new Route(); |
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$route->set($method, $mount, $thePath, $handler, $info); |
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$this->routes[] = $route; |
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} |
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} |
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/** |
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* Add an internal route to the router, this route is not exposed to the |
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* browser and the end user. |
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* |
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* @param string $path for this route |
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* @param string|array|callable $handler for this path, callable or equal |
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* @param string $info description of the route |
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* |
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* @return void. |
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*/ |
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public function addInternalRoute( |
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string $path = null, |
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$handler, |
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string $info = null |
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) : void { |
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$route = new Route(); |
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$route->set(null, null, $path, $handler, $info); |
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$this->internalRoutes[$path] = $route; |
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} |
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/** |
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* Handle the routes and match them towards the request, dispatch them |
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* when a match is made. Each route handler may throw exceptions that |
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* may redirect to an internal route for error handling. |
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* Several routes can match and if the routehandler does not break |
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* execution flow, the route matching will carry on. |
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* Only the last routehandler will get its return value returned further. |
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* |
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* @param string $path the path to find a matching handler for. |
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* @param string $method the request method to match. |
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* |
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* @return mixed content returned from route. |
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*/ |
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public function handle($path, $method = null) |
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{ |
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try { |
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$match = false; |
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foreach ($this->routes as $route) { |
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if ($route->match($path, $method)) { |
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$this->lastRoute = $route; |
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$match = true; |
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$results = $route->handle($path, $this->di); |
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if ($results) { |
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return $results; |
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} |
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} |
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} |
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return $this->handleInternal("404", "No route could be matched by the router."); |
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} catch (ForbiddenException $e) { |
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return $this->handleInternal("403", $e->getMessage()); |
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} catch (NotFoundException $e) { |
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return $this->handleInternal("404", $e->getMessage()); |
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} catch (InternalErrorException $e) { |
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return $this->handleInternal("500", $e->getMessage()); |
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} catch (\Exception $e) { |
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if ($this->mode === Router::DEVELOPMENT) { |
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throw $e; |
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} |
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return $this->handleInternal("500", $e->getMessage()); |
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} |
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} |
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/** |
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* Handle an internal route, the internal routes are not exposed to the |
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* end user. |
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* |
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* @param string $path for this route. |
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* @param string $message with additional details. |
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* |
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* @throws \Anax\Route\Exception\NotFoundException |
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* |
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* @return mixed from the route handler. |
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*/ |
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public function handleInternal(string $path, string $message = null) |
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{ |
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$route = $this->internalRoutes[$path] |
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?? $this->internalRoutes[null] |
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?? null; |
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if (!$route) { |
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throw new NotFoundException("No internal route to handle: " . $path); |
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} |
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if ($message) { |
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$route->setArguments([$message]); |
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} |
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$route->setMatchedPath($path); |
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$this->lastRoute = $route; |
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return $route->handle(null, $this->di); |
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} |
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288
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/** |
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* Add a route having a controller as a handler. |
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* |
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* @param string|array $method as request method to support |
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* @param string|array $mount for this route. |
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* @param string|callable $handler a callback handler for the route. |
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* @param string $info description of the route |
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* |
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* @return void. |
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*/ |
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public function addController($method = null, $mount = null, $handler = null, $info = null) |
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{ |
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$this->addRoute($method, $mount, null, $handler, $info); |
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} |
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/** |
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* Add a route to the router by its method(s), path(s) and a callback. |
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* |
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* @param string|array $method as request method to support |
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* @param string|array $path for this route. |
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* @param string|callable $handler a callback handler for the route. |
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* @param string $info description of the route |
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* |
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* @return void. |
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*/ |
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public function any($method = null, $path = null, $handler = null, $info = null) |
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{ |
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$this->addRoute($method, null, $path, $handler, $info); |
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} |
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/** |
324
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* Add a route to the router by its path(s) and a callback for any |
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* request method . |
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* |
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* @param string|array $path for this route. |
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* @param string|callable $handler a callback handler for the route. |
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* @param string $info description of the route |
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* |
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* @return void |
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*/ |
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public function add($path = null, $handler = null, $info = null) |
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{ |
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$this->addRoute(null, null, $path, $handler, $info); |
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} |
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339
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340
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/** |
341
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* Add a default route which will be applied for any path and any |
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* request method. |
343
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* |
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* @param string|callable $handler a callback handler for the route. |
345
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* @param string $info description of the route |
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* |
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* @return void |
348
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*/ |
349
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48 |
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public function always($handler, $info = null) |
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{ |
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48 |
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$this->addRoute(null, null, null, $handler, $info); |
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} |
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355
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356
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/** |
357
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* Add a default route which will be applied for any path, if the choosen |
358
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* request method is matching. |
359
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* |
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* @param string|array $method as request method to support |
361
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* @param string|callable $handler a callback handler for the route. |
362
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* @param string $info description of the route |
363
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* |
364
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* @return void |
365
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*/ |
366
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7 |
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public function all($method, $handler, $info = null) |
367
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{ |
368
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7 |
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$this->addRoute($method, null, null, $handler, $info); |
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7 |
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} |
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373
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/** |
374
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* Shortcut to add a GET route for the http request method GET. |
375
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* |
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* @param string|array $path for this route. |
377
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* @param string|callable $handler a callback handler for the route. |
378
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* @param string $info description of the route |
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* |
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|
* @return void |
381
|
|
|
*/ |
382
|
6 |
|
public function get($path, $handler, $info = null) |
383
|
|
|
{ |
384
|
6 |
|
$this->addRoute(["GET"], null, $path, $handler, $info); |
385
|
6 |
|
} |
386
|
|
|
|
387
|
|
|
|
388
|
|
|
|
389
|
|
|
/** |
390
|
|
|
* Shortcut to add a POST route for the http request method POST. |
391
|
|
|
* |
392
|
|
|
* @param string|array $path for this route. |
393
|
|
|
* @param string|callable $handler a callback handler for the route. |
394
|
|
|
* @param string $info description of the route |
395
|
|
|
* |
396
|
|
|
* @return void |
397
|
|
|
*/ |
398
|
6 |
|
public function post($path, $handler, $info = null) |
399
|
|
|
{ |
400
|
6 |
|
$this->addRoute(["POST"], null, $path, $handler, $info); |
401
|
6 |
|
} |
402
|
|
|
|
403
|
|
|
|
404
|
|
|
|
405
|
|
|
/** |
406
|
|
|
* Shortcut to add a PUT route for the http request method PUT. |
407
|
|
|
* |
408
|
|
|
* @param string|array $path for this route. |
409
|
|
|
* @param string|callable $handler a callback handler for the route. |
410
|
|
|
* @param string $info description of the route |
411
|
|
|
* |
412
|
|
|
* @return void |
413
|
|
|
*/ |
414
|
6 |
|
public function put($path, $handler, $info = null) |
415
|
|
|
{ |
416
|
6 |
|
$this->addRoute(["PUT"], null, $path, $handler, $info); |
417
|
6 |
|
} |
418
|
|
|
|
419
|
|
|
|
420
|
|
|
|
421
|
|
|
/** |
422
|
|
|
* Shortcut to add a PATCH route for the http request method PATCH. |
423
|
|
|
* |
424
|
|
|
* @param string|array $path for this route. |
425
|
|
|
* @param string|callable $handler a callback handler for the route. |
426
|
|
|
* @param string $info description of the route |
427
|
|
|
* |
428
|
|
|
* @return void |
429
|
|
|
*/ |
430
|
6 |
|
public function patch($path, $handler, $info = null) |
431
|
|
|
{ |
432
|
6 |
|
$this->addRoute(["PATCH"], null, $path, $handler, $info); |
433
|
6 |
|
} |
434
|
|
|
|
435
|
|
|
|
436
|
|
|
|
437
|
|
|
/** |
438
|
|
|
* Shortcut to add a DELETE route for the http request method DELETE. |
439
|
|
|
* |
440
|
|
|
* @param string|array $path for this route. |
441
|
|
|
* @param string|callable $handler a callback handler for the route. |
442
|
|
|
* @param string $info description of the route |
443
|
|
|
* |
444
|
|
|
* @return void |
445
|
|
|
*/ |
446
|
6 |
|
public function delete($path, $handler, $info = null) |
447
|
|
|
{ |
448
|
6 |
|
$this->addRoute(["DELETE"], null, $path, $handler, $info); |
449
|
6 |
|
} |
450
|
|
|
|
451
|
|
|
|
452
|
|
|
|
453
|
|
|
/** |
454
|
|
|
* Shortcut to add a OPTIONS route for the http request method OPTIONS. |
455
|
|
|
* |
456
|
|
|
* @param string|array $path for this route. |
457
|
|
|
* @param string|callable $handler a callback handler for the route. |
458
|
|
|
* @param string $info description of the route |
459
|
|
|
* |
460
|
|
|
* @return void |
461
|
|
|
*/ |
462
|
6 |
|
public function options($path, $handler, $info = null) |
463
|
|
|
{ |
464
|
6 |
|
$this->addRoute(["OPTIONS"], null, $path, $handler, $info); |
465
|
6 |
|
} |
466
|
|
|
|
467
|
|
|
|
468
|
|
|
|
469
|
|
|
/** |
470
|
|
|
* Get the route for the last route that was handled. |
471
|
|
|
* |
472
|
|
|
* @return mixed |
473
|
|
|
*/ |
474
|
4 |
|
public function getLastRoute() |
475
|
|
|
{ |
476
|
4 |
|
return $this->lastRoute->getAbsolutePath(); |
477
|
|
|
} |
478
|
|
|
|
479
|
|
|
|
480
|
|
|
|
481
|
|
|
/** |
482
|
|
|
* Get the route for the last route that was handled. |
483
|
|
|
* |
484
|
|
|
* @return mixed |
485
|
|
|
*/ |
486
|
3 |
|
public function getMatchedPath() |
487
|
|
|
{ |
488
|
3 |
|
return $this->lastRoute->getMatchedPath(); |
489
|
|
|
} |
490
|
|
|
|
491
|
|
|
|
492
|
|
|
|
493
|
|
|
/** |
494
|
|
|
* Get all routes. |
495
|
|
|
* |
496
|
|
|
* @return array with all routes. |
497
|
|
|
*/ |
498
|
79 |
|
public function getAll() |
499
|
|
|
{ |
500
|
79 |
|
return $this->routes; |
501
|
|
|
} |
502
|
|
|
|
503
|
|
|
|
504
|
|
|
|
505
|
|
|
/** |
506
|
|
|
* Get all internal routes. |
507
|
|
|
* |
508
|
|
|
* @return array with internal routes. |
509
|
|
|
*/ |
510
|
5 |
|
public function getInternal() |
511
|
|
|
{ |
512
|
5 |
|
return $this->internalRoutes; |
513
|
|
|
} |
514
|
|
|
} |
515
|
|
|
|
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: