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File Content: `MultipartStream.php`

<?php

declare (strict_types=1);
namespace YoastSEO_Vendor\GuzzleHttp\Psr7;

use YoastSEO_Vendor\Psr\Http\Message\StreamInterface;
/**
 * Stream that when read returns bytes for a streaming multipart or
 * multipart/form-data stream.
 */
final class MultipartStream implements \YoastSEO_Vendor\Psr\Http\Message\StreamInterface
{
    use StreamDecoratorTrait;
    /** @var string */
    private $boundary;
    /** @var StreamInterface */
    private $stream;
    /**
     * @param array  $elements Array of associative arrays, each containing a
     *                         required "name" key mapping to the form field,
     *                         name, a required "contents" key mapping to a
     *                         StreamInterface/resource/string, an optional
     *                         "headers" associative array of custom headers,
     *                         and an optional "filename" key mapping to a
     *                         string to send as the filename in the part.
     * @param string $boundary You can optionally provide a specific boundary
     *
     * @throws \InvalidArgumentException
     */
    public function __construct(array $elements = [], string $boundary = null)
    {
        $this->boundary = $boundary ?: \bin2hex(\random_bytes(20));
        $this->stream = $this->createStream($elements);
    }
    public function getBoundary() : string
    {
        return $this->boundary;
    }
    public function isWritable() : bool
    {
        return \false;
    }
    /**
     * Get the headers needed before transferring the content of a POST file
     *
     * @param string[] $headers
     */
    private function getHeaders(array $headers) : string
    {
        $str = '';
        foreach ($headers as $key => $value) {
            $str .= "{$key}: {$value}\r\n";
        }
        return "--{$this->boundary}\r\n" . \trim($str) . "\r\n\r\n";
    }
    /**
     * Create the aggregate stream that will be used to upload the POST data
     */
    protected function createStream(array $elements = []) : \YoastSEO_Vendor\Psr\Http\Message\StreamInterface
    {
        $stream = new \YoastSEO_Vendor\GuzzleHttp\Psr7\AppendStream();
        foreach ($elements as $element) {
            if (!\is_array($element)) {
                throw new \UnexpectedValueException('An array is expected');
            }
            $this->addElement($stream, $element);
        }
        // Add the trailing boundary with CRLF
        $stream->addStream(\YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::streamFor("--{$this->boundary}--\r\n"));
        return $stream;
    }
    private function addElement(\YoastSEO_Vendor\GuzzleHttp\Psr7\AppendStream $stream, array $element) : void
    {
        foreach (['contents', 'name'] as $key) {
            if (!\array_key_exists($key, $element)) {
                throw new \InvalidArgumentException("A '{$key}' key is required");
            }
        }
        $element['contents'] = \YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::streamFor($element['contents']);
        if (empty($element['filename'])) {
            $uri = $element['contents']->getMetadata('uri');
            if ($uri && \is_string($uri) && \substr($uri, 0, 6) !== 'php://' && \substr($uri, 0, 7) !== 'data://') {
                $element['filename'] = $uri;
            }
        }
        [$body, $headers] = $this->createElement($element['name'], $element['contents'], $element['filename'] ?? null, $element['headers'] ?? []);
        $stream->addStream(\YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::streamFor($this->getHeaders($headers)));
        $stream->addStream($body);
        $stream->addStream(\YoastSEO_Vendor\GuzzleHttp\Psr7\Utils::streamFor("\r\n"));
    }
    /**
     * @param string[] $headers
     *
     * @return array{0: StreamInterface, 1: string[]}
     */
    private function createElement(string $name, \YoastSEO_Vendor\Psr\Http\Message\StreamInterface $stream, ?string $filename, array $headers) : array
    {
        // Set a default content-disposition header if one was no provided
        $disposition = self::getHeader($headers, 'content-disposition');
        if (!$disposition) {
            $headers['Content-Disposition'] = $filename === '0' || $filename ? \sprintf('form-data; name="%s"; filename="%s"', $name, \basename($filename)) : "form-data; name=\"{$name}\"";
        }
        // Set a default content-length header if one was no provided
        $length = self::getHeader($headers, 'content-length');
        if (!$length) {
            if ($length = $stream->getSize()) {
                $headers['Content-Length'] = (string) $length;
            }
        }
        // Set a default Content-Type if one was not supplied
        $type = self::getHeader($headers, 'content-type');
        if (!$type && ($filename === '0' || $filename)) {
            $headers['Content-Type'] = \YoastSEO_Vendor\GuzzleHttp\Psr7\MimeType::fromFilename($filename) ?? 'application/octet-stream';
        }
        return [$stream, $headers];
    }
    /**
     * @param string[] $headers
     */
    private static function getHeader(array $headers, string $key) : ?string
    {
        $lowercaseHeader = \strtolower($key);
        foreach ($headers as $k => $v) {
            if (\strtolower((string) $k) === $lowercaseHeader) {
                return $v;
            }
        }
        return null;
    }
}

Name	Size	Permission
Exception	---	0755
AppendStream.php	6028 bytes	0644
BufferStream.php	3281 bytes	0644
CachingStream.php	4803 bytes	0644
DroppingStream.php	1291 bytes	0644
FnStream.php	4366 bytes	0644
Header.php	3953 bytes	0644
HttpFactory.php	4044 bytes	0644
InflateStream.php	1646 bytes	0644
LazyOpenStream.php	1248 bytes	0644
LimitStream.php	4302 bytes	0644
Message.php	8608 bytes	0644
MessageTrait.php	7907 bytes	0644
MimeType.php	45225 bytes	0644
MultipartStream.php	5369 bytes	0644
NoSeekStream.php	590 bytes	0644
PumpStream.php	4726 bytes	0644
Query.php	3680 bytes	0644
Request.php	4195 bytes	0644
Response.php	4518 bytes	0644
Rfc7230.php	666 bytes	0644
ServerRequest.php	9885 bytes	0644
Stream.php	7478 bytes	0644
StreamDecoratorTrait.php	3445 bytes	0644
StreamWrapper.php	4209 bytes	0644
UploadedFile.php	4915 bytes	0644
Uri.php	22259 bytes	0644
UriComparator.php	1282 bytes	0644
UriNormalizer.php	8642 bytes	0644
UriResolver.php	8905 bytes	0644
Utils.php	15837 bytes	0644

File Content: MultipartStream.php

File Content: `MultipartStream.php`