304 lines
10 KiB
PHP
304 lines
10 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Nyholm\Psr7Server;
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use Psr\Http\Message\ServerRequestFactoryInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use Psr\Http\Message\StreamFactoryInterface;
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use Psr\Http\Message\StreamInterface;
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use Psr\Http\Message\UploadedFileFactoryInterface;
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use Psr\Http\Message\UploadedFileInterface;
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use Psr\Http\Message\UriFactoryInterface;
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use Psr\Http\Message\UriInterface;
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/**
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* @author Tobias Nyholm <tobias.nyholm@gmail.com>
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* @author Martijn van der Ven <martijn@vanderven.se>
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*/
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final class ServerRequestCreator implements ServerRequestCreatorInterface
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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 = $streamFactory;
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}
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/**
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* {@inheritdoc}
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*/
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public function fromGlobals(): ServerRequestInterface
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{
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$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() : static::getHeadersFromServer($_SERVER);
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$post = null;
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if ('POST' === $this->getMethodFromEnv($server)) {
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foreach ($headers as $headerName => $headerValue) {
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if (true === \is_int($headerName) || 'content-type' !== \strtolower($headerName)) {
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continue;
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}
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if (\in_array(
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\strtolower(\trim(\explode(';', $headerValue, 2)[0])),
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['application/x-www-form-urlencoded', 'multipart/form-data']
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)) {
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$post = $_POST;
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break;
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}
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}
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}
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return $this->fromArrays($server, $headers, $_COOKIE, $_GET, $post, $_FILES, \fopen('php://input', 'r') ?: null);
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}
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/**
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* {@inheritdoc}
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*/
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public function fromArrays(array $server, array $headers = [], array $cookie = [], array $get = [], ?array $post = null, array $files = [], $body = null): ServerRequestInterface
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{
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$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 => $value) {
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// Because PHP automatically casts array keys set with numeric strings to integers, we have to make sure
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// that numeric headers will not be sent along as integers, as withAddedHeader can only accept strings.
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if (\is_int($name)) {
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$name = (string) $name;
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}
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$serverRequest = $serverRequest->withAddedHeader($name, $value);
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}
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$serverRequest = $serverRequest
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->withProtocolVersion($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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if (null === $body) {
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return $serverRequest;
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}
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if (\is_resource($body)) {
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$body = $this->streamFactory->createStreamFromResource($body);
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} elseif (\is_string($body)) {
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$body = $this->streamFactory->createStream($body);
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} elseif (!$body instanceof StreamInterface) {
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throw new \InvalidArgumentException('The $body parameter to ServerRequestCreator::fromArrays must be string, resource or StreamInterface');
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}
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return $serverRequest->withBody($body);
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}
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/**
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* Implementation from Laminas\Diactoros\marshalHeadersFromSapi().
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*/
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public static function getHeadersFromServer(array $server): array
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{
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$headers = [];
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foreach ($server as $key => $value) {
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// Apache prefixes environment variables with REDIRECT_
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// if they are added by rewrite rules
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if (0 === \strpos($key, 'REDIRECT_')) {
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$key = \substr($key, 9);
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// We will not overwrite existing variables with the
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// prefixed versions, though
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if (\array_key_exists($key, $server)) {
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continue;
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}
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}
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if ($value && 0 === \strpos($key, 'HTTP_')) {
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$name = \strtr(\strtolower(\substr($key, 5)), '_', '-');
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$headers[$name] = $value;
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continue;
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}
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if ($value && 0 === \strpos($key, 'CONTENT_')) {
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$name = 'content-'.\strtolower(\substr($key, 8));
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$headers[$name] = $value;
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continue;
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}
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}
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return $headers;
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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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if (UPLOAD_ERR_OK !== $value['error']) {
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$stream = $this->streamFactory->createStream();
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} else {
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try {
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$stream = $this->streamFactory->createStreamFromFile($value['tmp_name']);
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} catch (\RuntimeException $e) {
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$stream = $this->streamFactory->createStream();
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}
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}
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return $this->uploadedFileFactory->createUploadedFile(
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$stream,
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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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* @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['HTTP_X_FORWARDED_PROTO'])) {
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$uri = $uri->withScheme($server['HTTP_X_FORWARDED_PROTO']);
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} else {
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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['SERVER_PORT'])) {
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$uri = $uri->withPort($server['SERVER_PORT']);
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}
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}
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if (isset($server['HTTP_HOST'])) {
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if (1 === \preg_match('/^(.+)\:(\d+)$/', $server['HTTP_HOST'], $matches)) {
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$uri = $uri->withHost($matches[1])->withPort($matches[2]);
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} else {
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$uri = $uri->withHost($server['HTTP_HOST']);
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}
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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($server['REQUEST_URI'])) {
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$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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