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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\InvalidRouteException; |
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use Jasny\SwitchRoute\Invoker; |
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use Jasny\SwitchRoute\InvokerInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use ReflectionException; |
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/** |
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* Generate a script that invokes . |
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*/ |
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class GenerateInvokeMiddleware extends AbstractGenerate |
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{ |
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protected InvokerInterface $invoker; |
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/** |
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* GenerateScript constructor. |
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*/ |
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public function __construct(InvokerInterface $invoker = null) |
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{ |
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$this->invoker = $invoker ?? new Invoker(); |
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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 $structure): string |
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{ |
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$invokeCode = self::indent($this->generateSwitchFromRoutes($routes), 8) |
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. (!isset($structure["\e"]) ? "\n\n" . '$this->notFound($request);' : ''); |
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[$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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{$namespace} |
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use Jasny\SwitchRoute\NotFoundException; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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/** |
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* PSR-15 compatible middleware that invokes an action based on the route attributes of the server request. |
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* |
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* This file is generated by SwitchRoute. |
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* Do not modify it manually. Any changes will be overwritten. |
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*/ |
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class {$class} implements MiddlewareInterface |
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{ |
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/** |
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* @var callable|null |
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*/ |
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protected \$instantiate; |
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/** |
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* @param callable \$instantiate Instantiate controller / action classes. |
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*/ |
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public function __construct(?callable \$instantiate = null) |
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{ |
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\$this->instantiate = \$instantiate; |
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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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\$include = \$request->getAttribute('route:include', null); |
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if (\$include !== null) { |
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return require \$include; |
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} |
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\$controller = \$request->getAttribute('route:controller', ''); |
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\$action = \$request->getAttribute('route:action', ''); |
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{$invokeCode} |
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throw new NotFoundException("No default route specified"); |
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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 the PHP script with a switch for routing. |
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*/ |
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protected function generateSwitchFromRoutes(array $routes): string |
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{ |
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$grouped = $this->groupRoutes($routes); |
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$grouped[''][''] = null; |
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$code = []; |
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$code[] = "switch (\$controller) {"; |
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foreach ($grouped as $controller => $controllerRoutes) { |
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$code[] = " case '" . addslashes($controller) . "':"; |
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$code[] = " switch (\$action) {"; |
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foreach ($controllerRoutes as $action => $key) { |
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$route = [ |
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'controller' => $controller !== '' ? $controller : null, |
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'action' => $action !== '' ? $action : null, |
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]; |
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if ($key !== null) { |
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$code[] = self::indent("case '" . addslashes($action) . "':", 12); |
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$code[] = self::indent($this->generateRoute($key, $route, []), 16); |
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} |
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} |
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$code[] = " }"; |
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$code[] = " break;"; |
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} |
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$code[] = "}"; |
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return join("\n", $code); |
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} |
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/** |
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* Group routes by controller name. |
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*/ |
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protected function groupRoutes(array $routes): array |
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{ |
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$grouped = []; |
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foreach ($routes as $key => $route) { |
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if (isset($route['include'])) { |
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continue; |
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} |
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if (!isset($route['controller']) && !isset($route['action'])) { |
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$key = preg_replace('/{.*?}/', '*', $key); |
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throw new InvalidRouteException("Route for '$key' should specify 'include', 'controller', " . |
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"or 'action'"); |
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} |
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$controller = $route['controller'] ?? ''; |
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$action = $route['action'] ?? ''; |
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if (!isset($grouped[$controller][$action])) { |
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$grouped[$controller][$action] = $key; |
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} |
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} |
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return $grouped; |
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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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4 |
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protected function generateRoute(string $key, array $route, array $vars): string |
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{ |
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try { |
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$invocation = $this->invoker->generateInvocation( |
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$route, |
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function ($name, $type, $default) { |
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if ($type == ServerRequestInterface::class || is_a($type, ServerRequestInterface::class, true)) { |
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return '$request'; |
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} |
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return "\$request->getAttribute('route:{" . addslashes($name) . "}', " |
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. var_export($default, true) . ")"; |
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}, |
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'(isset($this->instantiate) ? ($this->instantiate)(\'%1$s\') : new \\%1$s)' |
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); |
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} catch (ReflectionException $exception) { |
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$key = preg_replace('/{.*?}/', '*', $key); |
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throw new InvalidRouteException("Invalid route for '$key'. " . $exception->getMessage(), 0, $exception); |
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} |
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return "return $invocation;"; |
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} |
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} |
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jasny /
switch-route
