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<?php |
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declare(strict_types=1); |
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namespace Nyholm\Psr7Server; |
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use Interop\Http\Factory\StreamFactoryInterface; |
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use Interop\Http\Factory\UploadedFileFactoryInterface; |
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use Interop\Http\Factory\UriFactoryInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\UploadedFileInterface; |
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use Interop\Http\Factory\ServerRequestFactoryInterface; |
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use Psr\Http\Message\UriInterface; |
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class ServerRequestCreator |
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{ |
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private $serverRequestFactory; |
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private $uriFactory; |
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private $uploadedFileFactory; |
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private $streamFactory; |
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public function __construct( |
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ServerRequestFactoryInterface $serverRequestFactory, |
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UriFactoryInterface $uriFactory, |
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UploadedFileFactoryInterface $uploadedFileFactory, |
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StreamFactoryInterface $streamFactory |
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) { |
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$this->serverRequestFactory = $serverRequestFactory; |
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$this->uriFactory = $uriFactory; |
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$this->uploadedFileFactory = $uploadedFileFactory; |
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$this->streamFactory = $streamFactory; |
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} |
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/** |
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* Create a new server request from the current environment variables. |
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* Defaults to a GET request to minimise the risk of an \InvalidArgumentException. |
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* Includes the current request headers as supplied by the server through `getallheaders()`. |
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* |
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* @throws \InvalidArgumentException If no valid method or URI can be determined. |
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*/ |
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public function fromGlobals(): ServerRequestInterface |
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{ |
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$server = $_SERVER; |
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if (false === isset($server['REQUEST_METHOD'])) { |
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$server['REQUEST_METHOD'] = 'GET'; |
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} |
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$headers = function_exists('getallheaders') ? getallheaders() : []; |
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return $this->fromArrays($server, $headers, $_COOKIE, $_GET, $_POST, $_FILES); |
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} |
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/** |
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* Create a new server request from a set of arrays. |
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* |
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* @param array $server Typically $_SERVER or similar structure. |
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* @param array $headers Typically the output of getallheaders() or similar structure. |
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* @param array $cookie Typically $_COOKIE or similar structure. |
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* @param array $get Typically $_GET or similar structure. |
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* @param array $post Typically $_POST or similar structure. |
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* @param array $files Typically $_FILES or similar structure. |
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* |
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* @throws \InvalidArgumentException If no valid method or URI can be determined. |
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*/ |
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public function fromArrays(array $server, array $headers = [], array $cookie = [], array $get = [], array $post = [], array $files = []): ServerRequestInterface |
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{ |
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$method = $this->getMethodFromEnv($server); |
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$uri = $this->getUriFromEnvWithHTTP($server); |
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$protocol = isset($server['SERVER_PROTOCOL']) ? str_replace('HTTP/', '', $server['SERVER_PROTOCOL']) : '1.1'; |
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$serverRequest = $this->serverRequestFactory->createServerRequest($method, $uri, $server); |
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foreach ($headers as $name => $value) { |
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$serverRequest = $serverRequest->withAddedHeader($name, $value); |
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} |
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return $serverRequest |
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->withProtocolVersion($protocol) |
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->withCookieParams($cookie) |
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->withQueryParams($get) |
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->withParsedBody($post) |
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->withUploadedFiles($this->normalizeFiles($files)); |
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} |
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private function getMethodFromEnv(array $environment): string |
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{ |
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if (false === isset($environment['REQUEST_METHOD'])) { |
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throw new \InvalidArgumentException('Cannot determine HTTP method'); |
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} |
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return $environment['REQUEST_METHOD']; |
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} |
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private function getUriFromEnvWithHTTP(array $environment): UriInterface |
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{ |
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$uri = $this->createUriFromArray($environment); |
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if (empty($uri->getScheme())) { |
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$uri = $uri->withScheme('http'); |
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} |
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return $uri; |
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} |
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/** |
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* Return an UploadedFile instance array. |
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* |
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* @param array $files A array which respect $_FILES structure |
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* |
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* @return UploadedFileInterface[] |
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* |
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* @throws \InvalidArgumentException for unrecognized values |
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*/ |
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private function normalizeFiles(array $files): array |
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{ |
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$normalized = []; |
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foreach ($files as $key => $value) { |
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if ($value instanceof UploadedFileInterface) { |
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$normalized[$key] = $value; |
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} elseif (is_array($value) && isset($value['tmp_name'])) { |
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$normalized[$key] = $this->createUploadedFileFromSpec($value); |
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} elseif (is_array($value)) { |
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$normalized[$key] = $this->normalizeFiles($value); |
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} else { |
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throw new \InvalidArgumentException('Invalid value in files specification'); |
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} |
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} |
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return $normalized; |
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} |
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/** |
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* Create and return an UploadedFile instance from a $_FILES specification. |
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* |
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* If the specification represents an array of values, this method will |
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* delegate to normalizeNestedFileSpec() and return that return value. |
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* |
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* @param array $value $_FILES struct |
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* |
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* @return array|UploadedFileInterface |
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*/ |
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private function createUploadedFileFromSpec(array $value) |
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{ |
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if (is_array($value['tmp_name'])) { |
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return $this->normalizeNestedFileSpec($value); |
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} |
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return $this->uploadedFileFactory->createUploadedFile( |
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$this->streamFactory->createStreamFromFile($value['tmp_name']), |
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(int) $value['size'], |
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(int) $value['error'], |
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$value['name'], |
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$value['type'] |
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); |
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} |
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/** |
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* Normalize an array of file specifications. |
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* |
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* Loops through all nested files and returns a normalized array of |
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* UploadedFileInterface instances. |
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* |
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* @param array $files |
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* |
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* @return UploadedFileInterface[] |
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*/ |
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private function normalizeNestedFileSpec(array $files = []): array |
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{ |
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$normalizedFiles = []; |
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foreach (array_keys($files['tmp_name']) as $key) { |
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$spec = [ |
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'tmp_name' => $files['tmp_name'][$key], |
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'size' => $files['size'][$key], |
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'error' => $files['error'][$key], |
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'name' => $files['name'][$key], |
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'type' => $files['type'][$key], |
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]; |
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$normalizedFiles[$key] = $this->createUploadedFileFromSpec($spec); |
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} |
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return $normalizedFiles; |
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} |
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/** |
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* Create a new uri from server variable. |
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* |
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* @param array $server Typically $_SERVER or similar structure. |
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*/ |
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private function createUriFromArray(array $server): UriInterface |
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{ |
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$uri = $this->uriFactory->createUri(''); |
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if (isset($server['REQUEST_SCHEME'])) { |
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$uri = $uri->withScheme($server['REQUEST_SCHEME']); |
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} elseif (isset($server['HTTPS'])) { |
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$uri = $uri->withScheme('on' === $server['HTTPS'] ? 'https' : 'http'); |
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} |
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if (isset($server['HTTP_HOST'])) { |
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$uri = $uri->withHost($server['HTTP_HOST']); |
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} elseif (isset($server['SERVER_NAME'])) { |
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$uri = $uri->withHost($server['SERVER_NAME']); |
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} |
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if (isset($server['SERVER_PORT'])) { |
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$uri = $uri->withPort($server['SERVER_PORT']); |
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} |
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if (isset($server['REQUEST_URI'])) { |
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$uri = $uri->withPath(current(explode('?', $server['REQUEST_URI']))); |
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} |
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if (isset($server['QUERY_STRING'])) { |
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$uri = $uri->withQuery($server['QUERY_STRING']); |
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} |
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return $uri; |
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} |
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} |
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