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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Flight Routing. |
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* |
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* PHP version 7.1 and above required |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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* @copyright 2019 Biurad Group (https://biurad.com/) |
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* @license https://opensource.org/licenses/BSD-3-Clause License |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Flight\Routing; |
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use Flight\Routing\Exceptions\{MethodNotAllowedException, UriHandlerException, UrlGenerationException}; |
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use Flight\Routing\Interfaces\{RouteCompilerInterface, RouteMatcherInterface}; |
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use Psr\Http\Message\{ServerRequestInterface, UriInterface}; |
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/** |
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* The bidirectional route matcher responsible for matching |
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* HTTP request and generating url from routes. |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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*/ |
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class RouteMatcher implements RouteMatcherInterface |
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{ |
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/** @var iterable<int,Route> */ |
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protected $routes = []; |
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/** @var array */ |
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protected $routeMap = []; |
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/** @var DebugRoute|null */ |
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protected $debug; |
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/** @var RouteCompilerInterface */ |
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private $compiler; |
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public function __construct(RouteCollection $collection) |
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{ |
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$this->compiler = $collection->getCompiler(); |
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$this->routes = $collection->getIterator(); |
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$this->routeMap = $collection->getRouteMaps(); |
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// Enable routes profiling ... |
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$this->debug = $collection->getDebugRoute(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function matchRequest(ServerRequestInterface $request): ?Route |
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{ |
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$requestUri = $request->getUri(); |
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// Resolve request path to match sub-directory or /index.php/path |
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if (!empty($pathInfo = $request->getServerParams()['PATH_INFO'] ?? '')) { |
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$requestUri = $requestUri->withPath($pathInfo); |
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} |
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return $this->match($request->getMethod(), $requestUri); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function match(string $method, UriInterface $uri): ?Route |
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{ |
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if ('/' !== ($requestPath = $uri->getPath()) && isset(Route::URL_PREFIX_SLASHES[$requestPath[-1]])) { |
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$requestPath = \substr($requestPath, 0, -1); |
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} |
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if (isset($this->routeMap[0][$requestPath])) { |
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[$routeId, $methods, $hostsRegex] = $this->routeMap[0][$requestPath]; |
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$variables = $this->routeMap[2][$routeId]; |
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if (!\array_key_exists($method, $methods)) { |
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throw new MethodNotAllowedException($methods, $uri->getPath(), $method); |
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} |
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if (!empty($hostsRegex)) { |
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$variables = $this->matchStaticRouteHost($uri, $hostsRegex, $variables); |
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if (null === $variables) { |
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if (!empty($this->routeMap[1])) { |
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goto retry_routing; |
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} |
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throw new UriHandlerException(\sprintf('Unfortunately current host "%s" is not allowed on requested static path [%s].', $uri->getHost(), $uri->getPath()), 400); |
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} |
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} |
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return $this->matchRoute($this->routes[$routeId]->arguments($variables), $uri); |
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} |
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retry_routing: |
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if (!empty($dynamicRouteMap = $this->routeMap[1])) { |
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$requestPath = $method . \strpbrk((string) $uri->withPath($requestPath), '/'); |
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foreach ($dynamicRouteMap as $regexRoute) { |
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if (\preg_match($regexRoute, $requestPath, $matches)) { |
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$route = $this->routes[$routeId = $matches['MARK']]; |
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if (!empty($matches[1])) { |
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throw new MethodNotAllowedException($route->get('methods'), $uri->getPath(), $method); |
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} |
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unset($matches[0], $matches[1], $matches['MARK']); |
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$matchVar = 2; // Indexing shifted due to method and host combined in regex |
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foreach ($this->routeMap[2][$routeId] as $key => $value) { |
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$route->argument($key, $matches[$matchVar] ?? $value); |
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++$matchVar; |
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} |
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return $this->matchRoute($route, $uri); |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function generateUri(string $routeName, array $parameters = []): GeneratedUri |
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{ |
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foreach ($this->routes as $route) { |
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if ($routeName === $route->get('name')) { |
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$defaults = $route->get('defaults'); |
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unset($defaults['_arguments']); |
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return $this->compiler->generateUri($route, $parameters, $defaults); |
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} |
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} |
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throw new UrlGenerationException(\sprintf('Unable to generate a URL for the named route "%s" as such route does not exist.', $routeName), 404); |
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} |
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public function getCompiler(): RouteCompilerInterface |
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{ |
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return $this->compiler; |
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} |
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/** |
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* Get the profiled routes. |
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*/ |
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public function getProfile(): ?DebugRoute |
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{ |
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return $this->debug; |
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} |
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protected function matchRoute(Route $route, UriInterface $uri): Route |
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{ |
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$schemes = $route->get('schemes'); |
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if (!empty($schemes) && !\array_key_exists($uri->getScheme(), $schemes)) { |
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throw new UriHandlerException(\sprintf('Unfortunately current scheme "%s" is not allowed on requested uri [%s].', $uri->getScheme(), $uri->getPath()), 400); |
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} |
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if (null !== $this->debug) { |
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$this->debug->setMatched($route); |
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} |
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return $route; |
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} |
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/** |
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* @param array<string,string|null> $variables |
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* |
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* @return null|array<string,string|null> |
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*/ |
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protected function matchStaticRouteHost(UriInterface $uri, string $hostsRegex, array $variables): ?array |
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{ |
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$hostAndPost = $uri->getHost() . (null !== $uri->getPort() ? ':' . $uri->getPort() : ''); |
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if (!\preg_match($hostsRegex, $hostAndPost, $hostsVar)) { |
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return null; |
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} |
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foreach ($variables as $key => $var) { |
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if (isset($hostsVar[$key])) { |
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$variables[$key] = $hostsVar[$key] ?? $var; |
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} |
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} |
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return $variables; |
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} |
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} |
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divineniiquaye /
flight-routing
