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<?php |
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declare(strict_types=1); |
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namespace Jasny\SwitchRoute\Generator; |
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use Jasny\SwitchRoute\Endpoint; |
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use Jasny\SwitchRoute\InvalidRouteException; |
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/** |
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* Generate a route middleware that sets server request attributes. |
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*/ |
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class GenerateRouteMiddleware extends AbstractGenerate |
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{ |
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/** |
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* Invoke code generation. |
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* |
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* @param string $name Class name |
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* @param array $routes Ignored |
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* @param array $structure |
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* @return string |
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*/ |
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public function __invoke(string $name, array $routes, array $structure): string |
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{ |
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$default = $structure["\e"] ?? null; |
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unset($structure["\e"]); |
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$applyRoutingCode = self::indent($this->generateSwitch($structure), 8) . "\n\n" |
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. self::indent($this->generateDefault($default), 8); |
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[$namespace, $class] = $this->generateNs($name); |
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return <<<CODE |
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<?php |
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declare(strict_types=1); |
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{$namespace} |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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/** |
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* PSR-15 compatible middleware that add route attributes to the server request. |
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* |
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* This file is generated by SwitchRoute. |
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* Do not modify it manually. Any changes will be overwritten. |
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*/ |
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class {$class} implements MiddlewareInterface |
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{ |
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/** |
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* Add routing attributes to the server request |
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*/ |
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protected function applyRouting(ServerRequestInterface \$request): ServerRequestInterface |
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{ |
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\$method = \$request->getMethod(); |
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\$path = \$request->getUri()->getPath(); |
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\$segments = \$path === "/" ? [] : explode("/", trim(\$path, "/")); |
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{$applyRoutingCode} |
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} |
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/** |
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* Process an incoming server request. |
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*/ |
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public function process(ServerRequestInterface \$request, RequestHandlerInterface \$handler): ResponseInterface |
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{ |
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return \$handler->handle(\$this->applyRouting(\$request)); |
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} |
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} |
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CODE; |
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} |
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/** |
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* Generate code for an endpoint |
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* |
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* @param Endpoint $endpoint |
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* @return string |
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*/ |
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protected function generateEndpoint(Endpoint $endpoint): string |
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{ |
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$exportValue = function ($var): string { |
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return var_export($var, true); |
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}; |
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$methods = join(', ', array_map($exportValue, $endpoint->getAllowedMethods())); |
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return "\$request = \$request->withAttribute('route:allowed_methods', [{$methods}]);\n" |
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. parent::generateEndpoint($endpoint); |
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} |
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/** |
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* Generate routing code for an endpoint. |
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* |
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* @throws InvalidRouteException |
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*/ |
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protected function generateRoute(string $key, array $route, array $vars): string |
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{ |
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$code = ['return $request']; |
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foreach ($route as $k => $v) { |
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$code[] = " ->withAttribute('route:" . addslashes($k) . "', " . var_export($v, true) . ")"; |
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} |
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foreach ($vars as $k => $index) { |
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$code[] = " ->withAttribute('route:{" . addslashes($k) . "}', \$segments[{$index}])"; |
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} |
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$code[array_key_last($code)] .= ';'; |
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return join("\n", $code); |
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} |
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/** |
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* Generate code for when no route matches. |
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* |
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* @param Endpoint|null $endpoint |
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* @return string |
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* @throws InvalidRouteException |
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*/ |
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4 |
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protected function generateDefault(?Endpoint $endpoint): string |
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{ |
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return $endpoint === null |
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3 |
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? 'return $request;' |
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: $this->generateRoute('default', $endpoint->getRoutes()[''], []); |
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} |
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} |
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jasny /
switch-route
