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<?php |
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namespace MiladRahimi\PhpRouter\Dispatching; |
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use MiladRahimi\PhpRouter\Exceptions\RouteNotFoundException; |
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use MiladRahimi\PhpRouter\Routing\Route; |
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use MiladRahimi\PhpRouter\Routing\Repository; |
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use Psr\Http\Message\ServerRequestInterface; |
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/** |
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* It finds an appropriate route for HTTP requests |
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*/ |
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class Matcher |
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{ |
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private Repository $repository; |
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public function __construct(Repository $repository) |
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{ |
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$this->repository = $repository; |
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} |
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/** |
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* Find the right route for the given request and defined patterns |
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* |
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* @param ServerRequestInterface $request |
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* @param string[] $patterns |
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* @return Route |
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* @throws RouteNotFoundException |
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*/ |
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public function find(ServerRequestInterface $request, array $patterns): Route |
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{ |
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foreach ($this->repository->findByMethod($request->getMethod()) as $route) { |
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$parameters = []; |
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if ($this->compare($route, $request, $parameters, $patterns)) { |
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$route->setUri($request->getUri()->getPath()); |
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$route->setParameters($this->pruneRouteParameters($parameters)); |
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return $route; |
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} |
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} |
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throw new RouteNotFoundException(); |
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} |
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/** |
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* Prune route parameters (remove unnecessary parameters) |
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* |
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* @param string[] $parameters |
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* @return string[] |
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*/ |
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private function pruneRouteParameters(array $parameters): array |
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{ |
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return array_filter($parameters, function ($value, $name) { |
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return is_numeric($name) === false; |
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}, ARRAY_FILTER_USE_BOTH); |
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} |
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/** |
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* Compare the route with the given HTTP request |
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* |
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* @param Route $route |
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* @param ServerRequestInterface $request |
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* @param string[] $parameters |
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* @param string[] $patterns |
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* @return bool |
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*/ |
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private function compare(Route $route, ServerRequestInterface $request, array &$parameters, array $patterns): bool |
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{ |
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return ( |
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$this->compareDomain($route->getDomain(), $request->getUri()->getHost()) && |
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$this->compareUri($route->getPath(), $request->getUri()->getPath(), $parameters, $patterns) |
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); |
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} |
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/** |
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* Check if given request domain matches given route domain |
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* |
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* @param string|null $routeDomain |
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* @param string $requestDomain |
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* @return bool |
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*/ |
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private function compareDomain(?string $routeDomain, string $requestDomain): bool |
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{ |
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return !$routeDomain || preg_match('@^' . $routeDomain . '$@', $requestDomain); |
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} |
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/** |
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* Check if given request uri matches given uri method |
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* |
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* @param string $path |
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* @param string $uri |
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* @param string[] $parameters |
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* @param string[] $patterns |
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* @return bool |
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*/ |
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private function compareUri(string $path, string $uri, array &$parameters, array $patterns): bool |
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{ |
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return preg_match('@^' . $this->regexUri($path, $patterns) . '$@', $uri, $parameters); |
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} |
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/** |
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* Convert route to regex |
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* |
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* @param string $path |
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* @param string[] $patterns |
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* @return string |
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*/ |
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private function regexUri(string $path, array $patterns): string |
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{ |
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return preg_replace_callback('@{([^}]+)}@', function (array $match) use ($patterns) { |
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return $this->regexParameter($match[1], $patterns); |
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}, $path); |
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} |
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/** |
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* Convert route parameter to regex |
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* |
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* @param string $name |
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* @param array $patterns |
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* @return string |
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*/ |
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private function regexParameter(string $name, array $patterns): string |
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{ |
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if ($name[-1] == '?') { |
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$name = substr($name, 0, -1); |
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$suffix = '?'; |
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} else { |
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$suffix = ''; |
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} |
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$pattern = $patterns[$name] ?? '[^/]+'; |
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return '(?<' . $name . '>' . $pattern . ')' . $suffix; |
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} |
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} |
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miladrahimi /
phprouter
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