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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\{UriHandlerException, UrlGenerationException}; |
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use Flight\Routing\Interfaces\{RouteCompilerInterface, RouteMapInterface, 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, \Countable |
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{ |
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/** @var array<int,Route> */ |
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protected $routes; |
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/** @var array */ |
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protected $staticRouteMap; |
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/** @var array */ |
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protected $dynamicRouteMap; |
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/** @var RouteCompilerInterface */ |
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private $compiler; |
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public function __construct(RouteMapInterface $collection) |
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{ |
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$this->compiler = $collection->getCompiler(); |
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$this->routes = $collection['routes'] ?? []; |
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$this->staticRouteMap = $collection['staticRoutesMap'] ?? []; |
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$this->dynamicRouteMap = $collection['dynamicRoutesMap'] ?? []; |
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} |
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/** |
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* Get the total number of routes. |
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*/ |
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public function count(): int |
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{ |
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return \count($this->routes); |
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} |
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/** |
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* Get routes associated with this matcher. |
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* |
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* @return Route[] |
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*/ |
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public function getRoutes(): array |
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{ |
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return $this->routes; |
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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 $uri): ?Route |
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{ |
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$requestPath = \rtrim($pathInfo = $uri->getPath(), Route::URL_PREFIX_SLASHES[$pathInfo[-1]] ?? '/') ?: '/'; |
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if (isset($this->staticRouteMap[$requestPath])) { |
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[$routeId, $hostsRegex, $variables] = $this->staticRouteMap[$requestPath]; |
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$route = $this->routes[$routeId]->match($method, $uri); |
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if (null !== $hostsRegex) { |
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$variables = $this->matchStaticRouteHost($uri, $hostsRegex, $variables); |
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if (null === $variables) { |
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if (!empty($this->dynamicRouteMap)) { |
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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(), $uri->getPath()), 400); |
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} |
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} |
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return empty($variables) ? $route : $route->arguments($variables); |
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} |
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retry_routing: |
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if ($pathInfo !== $requestPath) { |
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$uri = $uri->withPath($requestPath); |
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} |
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return $this->matchVariableRoute($method, $uri); |
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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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/** |
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* Get the compiler associated with this class. |
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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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protected function matchVariableRoute(string $method, UriInterface $uri): ?Route |
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{ |
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$requestPath = \strpbrk((string) $uri, '/'); |
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foreach ($this->dynamicRouteMap[0] ?? [] as $regex) { |
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if (!\preg_match($regex, $requestPath, $matches)) { |
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continue; |
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} |
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$route = $this->routes[$routeId = (int) $matches['MARK']]; |
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$matchVar = 0; |
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foreach ($this->dynamicRouteMap[1][$routeId] ?? [] as $key => $value) { |
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$route->argument($key, $matches[++$matchVar] ?? $value); |
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} |
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return $route->match($method, $uri); |
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} |
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return null; |
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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 array<string,string|null>|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
