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<?php |
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declare(strict_types=1); |
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namespace PhpLightning\Router; |
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use function count; |
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use function is_callable; |
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final class Router |
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{ |
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/** |
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* Eg: [method -> url -> [action, args]] |
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* |
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* @var array<string, array<string, array{ |
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* controller: string|callable, |
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* action: string, |
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* args?: array |
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* }>> |
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*/ |
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private array $routes = []; |
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private function __construct( |
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private string $requestMethod, |
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private string $requestUri, |
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) { |
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} |
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public static function withServer(array $server = []): self |
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{ |
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return new self( |
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(string)($server['REQUEST_METHOD'] ?? ''), |
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(string)($server['REQUEST_URI'] ?? ''), |
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); |
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} |
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public function listen(): void |
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{ |
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$requestUrl = $this->requestUrl(); |
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$notFoundFn = static fn (): string => "404: route '{$requestUrl}' not found"; |
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$current = $this->routes[$this->requestMethod][$requestUrl] |
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?? ['controller' => $notFoundFn, 'action' => '', 'args' => []]; |
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if (is_callable($current['controller'])) { |
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/** @psalm-suppress TooManyArguments */ |
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echo (string)$current['controller'](...$current['args'] ?? []); |
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} else { |
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/** @psalm-suppress TooManyArgument,InvalidStringClass,PossiblyUndefinedArrayOffset */ |
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echo (string)(new $current['controller']()) |
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->{$current['action']}(...$current['args'] ?? []); |
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} |
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} |
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public function get( |
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string $route, |
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callable|string $controller, |
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string $action = '__invoke', |
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): void { |
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$this->route('GET', $route, $controller, $action); |
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} |
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private function route( |
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string $method, |
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string $route, |
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callable|string $controller, |
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string $action = '', |
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): void { |
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$requestUrl = $this->requestUrl(); |
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$requestUrlParts = explode('/', $requestUrl); |
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$routeParts = explode('/', $route); |
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if (count($routeParts) !== count($requestUrlParts)) { |
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return; |
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} |
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array_shift($routeParts); |
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array_shift($requestUrlParts); |
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if ($routeParts[0] === '' && count($requestUrlParts) === 0) { |
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$this->routes[$method][$requestUrl] = [ |
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'controller' => $controller, |
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'action' => $action, |
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'args' => [], |
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]; |
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} else { |
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$this->routes[$method][$requestUrl] = [ |
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'controller' => $controller, |
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'action' => $action, |
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'args' => $this->parameters($routeParts, $requestUrlParts), |
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]; |
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} |
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} |
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private function requestUrl(): string |
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{ |
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$requestUrl = (string)filter_var($this->requestUri, FILTER_SANITIZE_URL); |
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$requestUrl = (string)strtok($requestUrl, '?'); |
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return rtrim($requestUrl, '/') ?: '/'; |
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} |
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/** |
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* @psalm-suppress MixedAssignment,MixedArgument |
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*/ |
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private function parameters(array $routeParts, array $requestUrlParts): array |
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{ |
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$parameters = []; |
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for ($i = 0, $iMax = count($routeParts); $i < $iMax; ++$i) { |
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$routePart = $routeParts[$i]; |
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if (preg_match('/^[$]/', $routePart)) { |
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$parameters[] = $requestUrlParts[$i]; |
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1 |
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} elseif ($routeParts[$i] !== $requestUrlParts[$i]) { |
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return []; |
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} |
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} |
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return $parameters; |
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} |
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} |
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php-lightning /
lnaddress
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