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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Middleware; |
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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 Yiisoft\Aliases\Aliases; |
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use Yiisoft\Router\UrlGeneratorInterface; |
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use Yiisoft\Yii\Middleware\Exception\BadUriPrefixException; |
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use function basename; |
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use function dirname; |
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use function rtrim; |
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use function str_replace; |
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use function str_starts_with; |
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use function strlen; |
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use function strpos; |
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use function substr; |
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/** |
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* This middleware supports routing when webroot is not the same folder as public. |
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*/ |
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final class SubFolder implements MiddlewareInterface |
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{ |
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/** |
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* @param UrlGeneratorInterface $uriGenerator The URI generator instance. |
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* @param Aliases $aliases The aliases instance. |
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* @param string|null $prefix URI prefix the specified immediately after the domain part. |
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* The prefix value usually begins with a slash and must not end with a slash. |
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* @param string|null $baseUrlAlias The base url alias {@see Aliases::get()}. Default "@baseUrl". |
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*/ |
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public function __construct( |
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private UrlGeneratorInterface $uriGenerator, |
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private Aliases $aliases, |
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private ?string $prefix = null, |
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private ?string $baseUrlAlias = '@baseUrl', |
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) { |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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$uri = $request->getUri(); |
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$path = $uri->getPath(); |
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$baseUrl = $this->prefix ?? $this->getBaseUrl($request); |
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$length = strlen($baseUrl); |
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if ($this->prefix !== null) { |
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if ($baseUrl[-1] === '/') { |
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throw new BadUriPrefixException('Wrong URI prefix value.'); |
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} |
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if (!str_starts_with($path, $baseUrl)) { |
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throw new BadUriPrefixException('URI prefix does not match.'); |
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} |
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} |
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if ($length > 0) { |
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$newPath = substr($path, $length); |
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if ($newPath === '') { |
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$newPath = '/'; |
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} |
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if ($newPath[0] === '/') { |
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$request = $request->withUri($uri->withPath($newPath)); |
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} elseif ($this->prefix !== null) { |
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throw new BadUriPrefixException('URI prefix does not match completely.'); |
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} |
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$this->uriGenerator->setUriPrefix($baseUrl); |
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if ($this->baseUrlAlias !== null) { |
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$this->aliases->set($this->baseUrlAlias, $baseUrl); |
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} |
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} |
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return $handler->handle($request); |
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} |
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public function getBaseUrl(ServerRequestInterface $request): string |
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{ |
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$serverParams = $request->getServerParams(); |
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$scriptUrl = $serverParams['SCRIPT_FILENAME']; |
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$scriptName = basename($scriptUrl); |
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if (isset($serverParams['PHP_SELF']) && basename($serverParams['PHP_SELF']) === $scriptName) { |
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$scriptUrl = $serverParams['PHP_SELF']; |
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} elseif ( |
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isset($serverParams['ORIG_SCRIPT_NAME']) && |
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basename($serverParams['ORIG_SCRIPT_NAME']) === $scriptName |
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) { |
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$scriptUrl = $serverParams['ORIG_SCRIPT_NAME']; |
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} elseif ( |
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isset($serverParams['PHP_SELF']) && |
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($pos = strpos($serverParams['PHP_SELF'], '/' . $scriptName)) !== false |
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) { |
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$scriptUrl = substr($serverParams['PHP_SELF'], 0, $pos) . '/' . $scriptName; |
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} elseif ( |
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!empty($serverParams['DOCUMENT_ROOT']) && |
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str_starts_with($scriptUrl, $serverParams['DOCUMENT_ROOT']) |
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) { |
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$scriptUrl = str_replace([$serverParams['DOCUMENT_ROOT'], '\\'], ['', '/'], $scriptUrl); |
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} |
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return rtrim(dirname($scriptUrl), '\\/'); |
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} |
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} |
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yiisoft /
yii-middleware
