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<?php declare(strict_types=1); |
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namespace Yiisoft\Yii\Web\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\Web\Exception\BadUriPrefixException; |
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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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public ?string $prefix = null; |
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private UrlGeneratorInterface $uriGenerator; |
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private Aliases $aliases; |
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public function __construct(UrlGeneratorInterface $uriGenerator, Aliases $aliases) |
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{ |
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$this->uriGenerator = $uriGenerator; |
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$this->aliases = $aliases; |
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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 = $uri->getPath(); |
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$auto = $this->prefix === null; |
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$length = $auto ? 0 : strlen($this->prefix); |
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if ($auto) { |
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// automatically check that the project is in a subfolder |
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// and uri contain a prefix |
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$scriptName = $request->getServerParams()['SCRIPT_NAME']; |
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if (strpos($scriptName, '/', 1) !== false) { |
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$prefix = substr($scriptName, 0, strrpos($scriptName, '/')); |
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if (strpos($path, $prefix) === 0) { |
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$this->prefix = $prefix; |
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$length = strlen($this->prefix); |
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} |
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} |
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} elseif ($length > 0) { |
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if ($this->prefix[-1] === '/') { |
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throw new BadUriPrefixException('Wrong URI prefix value'); |
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} |
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if (strpos($path, $this->prefix) !== 0) { |
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throw new BadUriPrefixException('URI prefix does not match'); |
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} |
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} |
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if ($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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if (!$auto) { |
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throw new BadUriPrefixException('URI prefix does not match completely'); |
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} |
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} else { |
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$request = $request->withUri($uri->withPath($newPath)); |
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$this->uriGenerator->setUriPrefix($this->prefix); |
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// rewrite alias |
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$this->aliases->set('@web', $this->prefix . '/'); |
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} |
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} |
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return $handler->handle($request); |
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} |
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} |
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yiisoft /
yii-web
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