<?php namespace Illuminate\Routing; use Closure; use Illuminate\Support\Arr; use Illuminate\Support\Str; use Illuminate\Http\Request; use Illuminate\Http\Response; use Illuminate\Support\Collection; use Illuminate\Container\Container; use Illuminate\Database\Eloquent\Model; use Illuminate\Support\Traits\Macroable; use Illuminate\Contracts\Events\Dispatcher; use Psr\Http\Message\ResponseInterface as PsrResponseInterface; use Symfony\Bridge\PsrHttpMessage\Factory\HttpFoundationFactory; use Illuminate\Contracts\Routing\Registrar as RegistrarContract; use Symfony\Component\HttpFoundation\Response as SymfonyResponse; use Symfony\Component\HttpKernel\Exception\NotFoundHttpException; class Router implements RegistrarContract { use Macroable; /** * The event dispatcher instance. * * @var \Illuminate\Contracts\Events\Dispatcher */ protected $events; /** * The IoC container instance. * * @var \Illuminate\Container\Container */ protected $container; /** * The route collection instance. * * @var \Illuminate\Routing\RouteCollection */ protected $routes; /** * The currently dispatched route instance. * * @var \Illuminate\Routing\Route */ protected $current; /** * The request currently being dispatched. * * @var \Illuminate\Http\Request */ protected $currentRequest; /** * All of the short-hand keys for middlewares. * * @var array */ protected $middleware = []; /** * All of the middleware groups. * * @var array */ protected $middlewareGroups = []; /** * The registered route value binders. * * @var array */ protected $binders = []; /** * The globally available parameter patterns. * * @var array */ protected $patterns = []; /** * The route group attribute stack. * * @var array */ protected $groupStack = []; /** * All of the verbs supported by the router. * * @var array */ public static $verbs = ['GET', 'HEAD', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS']; /** * Create a new Router instance. * * @param \Illuminate\Contracts\Events\Dispatcher $events * @param \Illuminate\Container\Container $container * @return void */ public function __construct(Dispatcher $events, Container $container = null) { $this->events = $events; $this->routes = new RouteCollection; $this->container = $container ?: new Container; $this->bind('_missing', function ($v) { return explode('/', $v); }); } /** * Register a new GET route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function get($uri, $action = null) { return $this->addRoute(['GET', 'HEAD'], $uri, $action); } /** * Register a new POST route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function post($uri, $action = null) { return $this->addRoute('POST', $uri, $action); } /** * Register a new PUT route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function put($uri, $action = null) { return $this->addRoute('PUT', $uri, $action); } /** * Register a new PATCH route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function patch($uri, $action = null) { return $this->addRoute('PATCH', $uri, $action); } /** * Register a new DELETE route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function delete($uri, $action = null) { return $this->addRoute('DELETE', $uri, $action); } /** * Register a new OPTIONS route with the router. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function options($uri, $action = null) { return $this->addRoute('OPTIONS', $uri, $action); } /** * Register a new route responding to all verbs. * * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function any($uri, $action = null) { $verbs = ['GET', 'HEAD', 'POST', 'PUT', 'PATCH', 'DELETE']; return $this->addRoute($verbs, $uri, $action); } /** * Register a new route with the given verbs. * * @param array|string $methods * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ public function match($methods, $uri, $action = null) { return $this->addRoute(array_map('strtoupper', (array) $methods), $uri, $action); } /** * Register an array of controllers with wildcard routing. * * @param array $controllers * @return void * * @deprecated since version 5.2. */ public function controllers(array $controllers) { foreach ($controllers as $uri => $controller) { $this->controller($uri, $controller); } } /** * Route a controller to a URI with wildcard routing. * * @param string $uri * @param string $controller * @param array $names * @return void * * @deprecated since version 5.2. */ public function controller($uri, $controller, $names = []) { $prepended = $controller; // First, we will check to see if a controller prefix has been registered in // the route group. If it has, we will need to prefix it before trying to // reflect into the class instance and pull out the method for routing. if (! empty($this->groupStack)) { $prepended = $this->prependGroupUses($controller); } $routable = (new ControllerInspector) ->getRoutable($prepended, $uri); // When a controller is routed using this method, we use Reflection to parse // out all of the routable methods for the controller, then register each // route explicitly for the developers, so reverse routing is possible. foreach ($routable as $method => $routes) { foreach ($routes as $route) { $this->registerInspected($route, $controller, $method, $names); } } $this->addFallthroughRoute($controller, $uri); } /** * Register an inspected controller route. * * @param array $route * @param string $controller * @param string $method * @param array $names * @return void * * @deprecated since version 5.2. */ protected function registerInspected($route, $controller, $method, &$names) { $action = ['uses' => $controller.'@'.$method]; // If a given controller method has been named, we will assign the name to the // controller action array, which provides for a short-cut to method naming // so you don't have to define an individual route for these controllers. $action['as'] = Arr::get($names, $method); $this->{$route['verb']}($route['uri'], $action); } /** * Add a fallthrough route for a controller. * * @param string $controller * @param string $uri * @return void * * @deprecated since version 5.2. */ protected function addFallthroughRoute($controller, $uri) { $missing = $this->any($uri.'/{_missing}', $controller.'@missingMethod'); $missing->where('_missing', '(.*)'); } /** * Set the unmapped global resource parameters to singular. * * @return void */ public function singularResourceParameters() { ResourceRegistrar::singularParameters(); } /** * Set the global resource parameter mapping. * * @param array $parameters * @return void */ public function resourceParameters(array $parameters = []) { ResourceRegistrar::setParameters($parameters); } /** * Register an array of resource controllers. * * @param array $resources * @return void */ public function resources(array $resources) { foreach ($resources as $name => $controller) { $this->resource($name, $controller); } } /** * Route a resource to a controller. * * @param string $name * @param string $controller * @param array $options * @return void */ public function resource($name, $controller, array $options = []) { if ($this->container && $this->container->bound('Illuminate\Routing\ResourceRegistrar')) { $registrar = $this->container->make('Illuminate\Routing\ResourceRegistrar'); } else { $registrar = new ResourceRegistrar($this); } $registrar->register($name, $controller, $options); } /** * Register the typical authentication routes for an application. * * @return void */ public function auth() { // Authentication Routes... $this->get('login', 'Auth\AuthController@showLoginForm'); $this->post('login', 'Auth\AuthController@login'); $this->get('logout', 'Auth\AuthController@logout'); // Registration Routes... $this->get('register', 'Auth\AuthController@showRegistrationForm'); $this->post('register', 'Auth\AuthController@register'); // Password Reset Routes... $this->get('password/reset/{token?}', 'Auth\PasswordController@showResetForm'); $this->post('password/email', 'Auth\PasswordController@sendResetLinkEmail'); $this->post('password/reset', 'Auth\PasswordController@reset'); } /** * Create a route group with shared attributes. * * @param array $attributes * @param \Closure $callback * @return void */ public function group(array $attributes, Closure $callback) { $this->updateGroupStack($attributes); // Once we have updated the group stack, we will execute the user Closure and // merge in the groups attributes when the route is created. After we have // run the callback, we will pop the attributes off of this group stack. call_user_func($callback, $this); array_pop($this->groupStack); } /** * Update the group stack with the given attributes. * * @param array $attributes * @return void */ protected function updateGroupStack(array $attributes) { if (! empty($this->groupStack)) { $attributes = $this->mergeGroup($attributes, end($this->groupStack)); } $this->groupStack[] = $attributes; } /** * Merge the given array with the last group stack. * * @param array $new * @return array */ public function mergeWithLastGroup($new) { return $this->mergeGroup($new, end($this->groupStack)); } /** * Merge the given group attributes. * * @param array $new * @param array $old * @return array */ public static function mergeGroup($new, $old) { $new['namespace'] = static::formatUsesPrefix($new, $old); $new['prefix'] = static::formatGroupPrefix($new, $old); if (isset($new['domain'])) { unset($old['domain']); } $new['where'] = array_merge( isset($old['where']) ? $old['where'] : [], isset($new['where']) ? $new['where'] : [] ); if (isset($old['as'])) { $new['as'] = $old['as'].(isset($new['as']) ? $new['as'] : ''); } return array_merge_recursive(Arr::except($old, ['namespace', 'prefix', 'where', 'as']), $new); } /** * Format the uses prefix for the new group attributes. * * @param array $new * @param array $old * @return string|null */ protected static function formatUsesPrefix($new, $old) { if (isset($new['namespace'])) { return isset($old['namespace']) ? trim($old['namespace'], '\\').'\\'.trim($new['namespace'], '\\') : trim($new['namespace'], '\\'); } return isset($old['namespace']) ? $old['namespace'] : null; } /** * Format the prefix for the new group attributes. * * @param array $new * @param array $old * @return string|null */ protected static function formatGroupPrefix($new, $old) { $oldPrefix = isset($old['prefix']) ? $old['prefix'] : null; if (isset($new['prefix'])) { return trim($oldPrefix, '/').'/'.trim($new['prefix'], '/'); } return $oldPrefix; } /** * Get the prefix from the last group on the stack. * * @return string */ public function getLastGroupPrefix() { if (! empty($this->groupStack)) { $last = end($this->groupStack); return isset($last['prefix']) ? $last['prefix'] : ''; } return ''; } /** * Add a route to the underlying route collection. * * @param array|string $methods * @param string $uri * @param \Closure|array|string|null $action * @return \Illuminate\Routing\Route */ protected function addRoute($methods, $uri, $action) { return $this->routes->add($this->createRoute($methods, $uri, $action)); } /** * Create a new route instance. * * @param array|string $methods * @param string $uri * @param mixed $action * @return \Illuminate\Routing\Route */ protected function createRoute($methods, $uri, $action) { // If the route is routing to a controller we will parse the route action into // an acceptable array format before registering it and creating this route // instance itself. We need to build the Closure that will call this out. if ($this->actionReferencesController($action)) { $action = $this->convertToControllerAction($action); } $route = $this->newRoute( $methods, $this->prefix($uri), $action ); // If we have groups that need to be merged, we will merge them now after this // route has already been created and is ready to go. After we're done with // the merge we will be ready to return the route back out to the caller. if ($this->hasGroupStack()) { $this->mergeGroupAttributesIntoRoute($route); } $this->addWhereClausesToRoute($route); return $route; } /** * Create a new Route object. * * @param array|string $methods * @param string $uri * @param mixed $action * @return \Illuminate\Routing\Route */ protected function newRoute($methods, $uri, $action) { return (new Route($methods, $uri, $action)) ->setRouter($this) ->setContainer($this->container); } /** * Prefix the given URI with the last prefix. * * @param string $uri * @return string */ protected function prefix($uri) { return trim(trim($this->getLastGroupPrefix(), '/').'/'.trim($uri, '/'), '/') ?: '/'; } /** * Add the necessary where clauses to the route based on its initial registration. * * @param \Illuminate\Routing\Route $route * @return \Illuminate\Routing\Route */ protected function addWhereClausesToRoute($route) { $where = isset($route->getAction()['where']) ? $route->getAction()['where'] : []; $route->where(array_merge($this->patterns, $where)); return $route; } /** * Merge the group stack with the controller action. * * @param \Illuminate\Routing\Route $route * @return void */ protected function mergeGroupAttributesIntoRoute($route) { $action = $this->mergeWithLastGroup($route->getAction()); $route->setAction($action); } /** * Determine if the action is routing to a controller. * * @param array $action * @return bool */ protected function actionReferencesController($action) { if ($action instanceof Closure) { return false; } return is_string($action) || (isset($action['uses']) && is_string($action['uses'])); } /** * Add a controller based route action to the action array. * * @param array|string $action * @return array */ protected function convertToControllerAction($action) { if (is_string($action)) { $action = ['uses' => $action]; } // Here we'll merge any group "uses" statement if necessary so that the action // has the proper clause for this property. Then we can simply set the name // of the controller on the action and return the action array for usage. if (! empty($this->groupStack)) { $action['uses'] = $this->prependGroupUses($action['uses']); } // Here we will set this controller name on the action array just so we always // have a copy of it for reference if we need it. This can be used while we // search for a controller name or do some other type of fetch operation. $action['controller'] = $action['uses']; return $action; } /** * Prepend the last group uses onto the use clause. * * @param string $uses * @return string */ protected function prependGroupUses($uses) { $group = end($this->groupStack); return isset($group['namespace']) && strpos($uses, '\\') !== 0 ? $group['namespace'].'\\'.$uses : $uses; } /** * Dispatch the request to the application. * * @param \Illuminate\Http\Request $request * @return \Illuminate\Http\Response */ public function dispatch(Request $request) { $this->currentRequest = $request; $response = $this->dispatchToRoute($request); return $this->prepareResponse($request, $response); } /** * Dispatch the request to a route and return the response. * * @param \Illuminate\Http\Request $request * @return mixed */ public function dispatchToRoute(Request $request) { // First we will find a route that matches this request. We will also set the // route resolver on the request so middlewares assigned to the route will // receive access to this route instance for checking of the parameters. $route = $this->findRoute($request); $request->setRouteResolver(function () use ($route) { return $route; }); $this->events->fire(new Events\RouteMatched($route, $request)); $response = $this->runRouteWithinStack($route, $request); return $this->prepareResponse($request, $response); } /** * Run the given route within a Stack "onion" instance. * * @param \Illuminate\Routing\Route $route * @param \Illuminate\Http\Request $request * @return mixed */ protected function runRouteWithinStack(Route $route, Request $request) { $shouldSkipMiddleware = $this->container->bound('middleware.disable') && $this->container->make('middleware.disable') === true; $middleware = $shouldSkipMiddleware ? [] : $this->gatherRouteMiddlewares($route); return (new Pipeline($this->container)) ->send($request) ->through($middleware) ->then(function ($request) use ($route) { return $this->prepareResponse( $request, $route->run($request) ); }); } /** * Gather the middleware for the given route. * * @param \Illuminate\Routing\Route $route * @return array */ public function gatherRouteMiddlewares(Route $route) { return Collection::make($route->middleware())->map(function ($name) { return Collection::make($this->resolveMiddlewareClassName($name)); }) ->flatten()->all(); } /** * Resolve the middleware name to a class name(s) preserving passed parameters. * * @param string $name * @return string|array */ public function resolveMiddlewareClassName($name) { $map = $this->middleware; // If the middleware is the name of a middleware group, we will return the array // of middlewares that belong to the group. This allows developers to group a // set of middleware under single keys that can be conveniently referenced. if (isset($this->middlewareGroups[$name])) { return $this->parseMiddlewareGroup($name); // When the middleware is simply a Closure, we will return this Closure instance // directly so that Closures can be registered as middleware inline, which is // convenient on occasions when the developers are experimenting with them. } elseif (isset($map[$name]) && $map[$name] instanceof Closure) { return $map[$name]; // Finally, when the middleware is simply a string mapped to a class name the // middleware name will get parsed into the full class name and parameters // which may be run using the Pipeline which accepts this string format. } else { list($name, $parameters) = array_pad(explode(':', $name, 2), 2, null); return (isset($map[$name]) ? $map[$name] : $name). ($parameters !== null ? ':'.$parameters : ''); } } /** * Parse the middleware group and format it for usage. * * @param string $name * @return array */ protected function parseMiddlewareGroup($name) { $results = []; foreach ($this->middlewareGroups[$name] as $middleware) { // If the middleware is another middleware group we will pull in the group and // merge its middleware into the results. This allows groups to conveniently // reference other groups without needing to repeat all their middlewares. if (isset($this->middlewareGroups[$middleware])) { $results = array_merge( $results, $this->parseMiddlewareGroup($middleware) ); continue; } list($middleware, $parameters) = array_pad( explode(':', $middleware, 2), 2, null ); // If this middleware is actually a route middleware, we will extract the full // class name out of the middleware list now. Then we'll add the parameters // back onto this class' name so the pipeline will properly extract them. if (isset($this->middleware[$middleware])) { $middleware = $this->middleware[$middleware]; } $results[] = $middleware.($parameters ? ':'.$parameters : ''); } return $results; } /** * Find the route matching a given request. * * @param \Illuminate\Http\Request $request * @return \Illuminate\Routing\Route */ protected function findRoute($request) { $this->current = $route = $this->routes->match($request); $this->container->instance('Illuminate\Routing\Route', $route); return $this->substituteBindings($route); } /** * Substitute the route bindings onto the route. * * @param \Illuminate\Routing\Route $route * @return \Illuminate\Routing\Route */ protected function substituteBindings($route) { foreach ($route->parameters() as $key => $value) { if (isset($this->binders[$key])) { $route->setParameter($key, $this->performBinding($key, $value, $route)); } } $this->substituteImplicitBindings($route); return $route; } /** * Substitute the implicit Eloquent model bindings for the route. * * @param \Illuminate\Routing\Route $route * @return void */ protected function substituteImplicitBindings($route) { $parameters = $route->parameters(); foreach ($route->signatureParameters(Model::class) as $parameter) { $class = $parameter->getClass(); if (array_key_exists($parameter->name, $parameters) && ! $route->getParameter($parameter->name) instanceof Model) { $method = $parameter->isDefaultValueAvailable() ? 'first' : 'firstOrFail'; $model = $class->newInstance(); $route->setParameter( $parameter->name, $model->where( $model->getRouteKeyName(), $parameters[$parameter->name] )->{$method}() ); } } } /** * Call the binding callback for the given key. * * @param string $key * @param string $value * @param \Illuminate\Routing\Route $route * @return mixed */ protected function performBinding($key, $value, $route) { return call_user_func($this->binders[$key], $value, $route); } /** * Register a route matched event listener. * * @param string|callable $callback * @return void */ public function matched($callback) { $this->events->listen(Events\RouteMatched::class, $callback); } /** * Get all of the defined middleware short-hand names. * * @return array */ public function getMiddleware() { return $this->middleware; } /** * Register a short-hand name for a middleware. * * @param string $name * @param string $class * @return $this */ public function middleware($name, $class) { $this->middleware[$name] = $class; return $this; } /** * Register a group of middleware. * * @param string $name * @param array $middleware * @return $this */ public function middlewareGroup($name, array $middleware) { $this->middlewareGroups[$name] = $middleware; return $this; } /** * Add a middleware to the beginning of a middleware group. * * If the middleware is already in the group, it will not be added again. * * @param string $group * @param string $middleware * @return $this */ public function prependMiddlewareToGroup($group, $middleware) { if (isset($this->middlewareGroups[$group]) && ! in_array($middleware, $this->middlewareGroups[$group])) { array_unshift($this->middlewareGroups[$group], $middleware); } return $this; } /** * Add a middleware to the end of a middleware group. * * If the middleware is already in the group, it will not be added again. * * @param string $group * @param string $middleware * @return $this */ public function pushMiddlewareToGroup($group, $middleware) { if (isset($this->middlewareGroups[$group]) && ! in_array($middleware, $this->middlewareGroups[$group])) { $this->middlewareGroups[$group][] = $middleware; } return $this; } /** * Register a model binder for a wildcard. * * @param string $key * @param string $class * @param \Closure|null $callback * @return void * * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException */ public function model($key, $class, Closure $callback = null) { $this->bind($key, function ($value) use ($class, $callback) { if (is_null($value)) { return; } // For model binders, we will attempt to retrieve the models using the first // method on the model instance. If we cannot retrieve the models we'll // throw a not found exception otherwise we will return the instance. $instance = $this->container->make($class); if ($model = $instance->where($instance->getRouteKeyName(), $value)->first()) { return $model; } // If a callback was supplied to the method we will call that to determine // what we should do when the model is not found. This just gives these // developer a little greater flexibility to decide what will happen. if ($callback instanceof Closure) { return call_user_func($callback, $value); } throw new NotFoundHttpException; }); } /** * Add a new route parameter binder. * * @param string $key * @param string|callable $binder * @return void */ public function bind($key, $binder) { if (is_string($binder)) { $binder = $this->createClassBinding($binder); } $this->binders[str_replace('-', '_', $key)] = $binder; } /** * Create a class based binding using the IoC container. * * @param string $binding * @return \Closure */ public function createClassBinding($binding) { return function ($value, $route) use ($binding) { // If the binding has an @ sign, we will assume it's being used to delimit // the class name from the bind method name. This allows for bindings // to run multiple bind methods in a single class for convenience. $segments = explode('@', $binding); $method = count($segments) == 2 ? $segments[1] : 'bind'; $callable = [$this->container->make($segments[0]), $method]; return call_user_func($callable, $value, $route); }; } /** * Set a global where pattern on all routes. * * @param string $key * @param string $pattern * @return void */ public function pattern($key, $pattern) { $this->patterns[$key] = $pattern; } /** * Set a group of global where patterns on all routes. * * @param array $patterns * @return void */ public function patterns($patterns) { foreach ($patterns as $key => $pattern) { $this->pattern($key, $pattern); } } /** * Create a response instance from the given value. * * @param \Symfony\Component\HttpFoundation\Request $request * @param mixed $response * @return \Illuminate\Http\Response */ public function prepareResponse($request, $response) { if ($response instanceof PsrResponseInterface) { $response = (new HttpFoundationFactory)->createResponse($response); } elseif (! $response instanceof SymfonyResponse) { $response = new Response($response); } return $response->prepare($request); } /** * Determine if the router currently has a group stack. * * @return bool */ public function hasGroupStack() { return ! empty($this->groupStack); } /** * Get the current group stack for the router. * * @return array */ public function getGroupStack() { return $this->groupStack; } /** * Get a route parameter for the current route. * * @param string $key * @param string $default * @return mixed */ public function input($key, $default = null) { return $this->current()->parameter($key, $default); } /** * Get the currently dispatched route instance. * * @return \Illuminate\Routing\Route */ public function getCurrentRoute() { return $this->current(); } /** * Get the currently dispatched route instance. * * @return \Illuminate\Routing\Route */ public function current() { return $this->current; } /** * Check if a route with the given name exists. * * @param string $name * @return bool */ public function has($name) { return $this->routes->hasNamedRoute($name); } /** * Get the current route name. * * @return string|null */ public function currentRouteName() { return $this->current() ? $this->current()->getName() : null; } /** * Alias for the "currentRouteName" method. * * @param mixed string * @return bool */ public function is() { foreach (func_get_args() as $pattern) { if (Str::is($pattern, $this->currentRouteName())) { return true; } } return false; } /** * Determine if the current route matches a given name. * * @param string $name * @return bool */ public function currentRouteNamed($name) { return $this->current() ? $this->current()->getName() == $name : false; } /** * Get the current route action. * * @return string|null */ public function currentRouteAction() { if (! $this->current()) { return; } $action = $this->current()->getAction(); return isset($action['controller']) ? $action['controller'] : null; } /** * Alias for the "currentRouteUses" method. * * @param mixed string * @return bool */ public function uses() { foreach (func_get_args() as $pattern) { if (Str::is($pattern, $this->currentRouteAction())) { return true; } } return false; } /** * Determine if the current route action matches a given action. * * @param string $action * @return bool */ public function currentRouteUses($action) { return $this->currentRouteAction() == $action; } /** * Get the request currently being dispatched. * * @return \Illuminate\Http\Request */ public function getCurrentRequest() { return $this->currentRequest; } /** * Get the underlying route collection. * * @return \Illuminate\Routing\RouteCollection */ public function getRoutes() { return $this->routes; } /** * Set the route collection instance. * * @param \Illuminate\Routing\RouteCollection $routes * @return void */ public function setRoutes(RouteCollection $routes) { foreach ($routes as $route) { $route->setRouter($this)->setContainer($this->container); } $this->routes = $routes; $this->container->instance('routes', $this->routes); } /** * Get the global "where" patterns. * * @return array */ public function getPatterns() { return $this->patterns; } }