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<?php

namespace GuzzleHttp\Psr7;

use Psr\Http\Message\MessageInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

final class Message
{
    /**
     * Returns the string representation of an HTTP message.
     *
     * @param MessageInterface $message Message to convert to a string.
     *
     * @return string
     */
    public static function toString(MessageInterface $message)
    {
        if ($message instanceof RequestInterface) {
            $msg = trim($message->getMethod() . ' '
                    . $message->getRequestTarget())
                . ' HTTP/' . $message->getProtocolVersion();
            if (!$message->hasHeader('host')) {
                $msg .= "\r\nHost: " . $message->getUri()->getHost();
            }
        } elseif ($message instanceof ResponseInterface) {
            $msg = 'HTTP/' . $message->getProtocolVersion() . ' '
                . $message->getStatusCode() . ' '
                . $message->getReasonPhrase();
        } else {
            throw new \InvalidArgumentException('Unknown message type');
        }

foreach ($message->getHeaders() as $name => $values) {
            if (strtolower($name) === 'set-cookie') {
                foreach ($values as $value) {
                    $msg .= "\r\n{$name}: " . $value;
                }
            } else {
                $msg .= "\r\n{$name}: " . implode(', ', $values);
            }
        }

return "{$msg}\r\n\r\n" . $message->getBody();
    }

/**
     * Get a short summary of the message body.
     *
     * Will return `null` if the response is not printable.
     *
     * @param MessageInterface $message    The message to get the body summary
     * @param int              $truncateAt The maximum allowed size of the summary
     *
     * @return string|null
     */
    public static function bodySummary(MessageInterface $message, $truncateAt = 120)
    {
        $body = $message->getBody();

if (!$body->isSeekable() || !$body->isReadable()) {
            return null;
        }

$size = $body->getSize();

if ($size === 0) {
            return null;
        }

$summary = $body->read($truncateAt);
        $body->rewind();

if ($size > $truncateAt) {
            $summary .= ' (truncated...)';
        }

// Matches any printable character, including unicode characters:
        // letters, marks, numbers, punctuation, spacing, and separators.
        if (preg_match('/[^\pL\pM\pN\pP\pS\pZ\n\r\t]/u', $summary)) {
            return null;
        }

return $summary;
    }

/**
     * Attempts to rewind a message body and throws an exception on failure.
     *
     * The body of the message will only be rewound if a call to `tell()`
     * returns a value other than `0`.
     *
     * @param MessageInterface $message Message to rewind
     *
     * @throws \RuntimeException
     */
    public static function rewindBody(MessageInterface $message)
    {
        $body = $message->getBody();

if ($body->tell()) {
            $body->rewind();
        }
    }

/**
     * Parses an HTTP message into an associative array.
     *
     * The array contains the "start-line" key containing the start line of
     * the message, "headers" key containing an associative array of header
     * array values, and a "body" key containing the body of the message.
     *
     * @param string $message HTTP request or response to parse.
     *
     * @return array
     */
    public static function parseMessage($message)
    {
        if (!$message) {
            throw new \InvalidArgumentException('Invalid message');
        }

$message = ltrim($message, "\r\n");

$messageParts = preg_split("/\r?\n\r?\n/", $message, 2);

if ($messageParts === false || count($messageParts) !== 2) {
            throw new \InvalidArgumentException('Invalid message: Missing header delimiter');
        }

list($rawHeaders, $body) = $messageParts;
        $rawHeaders .= "\r\n"; // Put back the delimiter we split previously
        $headerParts = preg_split("/\r?\n/", $rawHeaders, 2);

if ($headerParts === false || count($headerParts) !== 2) {
            throw new \InvalidArgumentException('Invalid message: Missing status line');
        }

list($startLine, $rawHeaders) = $headerParts;

if (preg_match("/(?:^HTTP\/|^[A-Z]+ \S+ HTTP\/)(\d+(?:\.\d+)?)/i", $startLine, $matches) && $matches[1] === '1.0') {
            // Header folding is deprecated for HTTP/1.1, but allowed in HTTP/1.0
            $rawHeaders = preg_replace(Rfc7230::HEADER_FOLD_REGEX, ' ', $rawHeaders);
        }

/** @var array[] $headerLines */
        $count = preg_match_all(Rfc7230::HEADER_REGEX, $rawHeaders, $headerLines, PREG_SET_ORDER);

// If these aren't the same, then one line didn't match and there's an invalid header.
        if ($count !== substr_count($rawHeaders, "\n")) {
            // Folding is deprecated, see https://tools.ietf.org/html/rfc7230#section-3.2.4
            if (preg_match(Rfc7230::HEADER_FOLD_REGEX, $rawHeaders)) {
                throw new \InvalidArgumentException('Invalid header syntax: Obsolete line folding');
            }

throw new \InvalidArgumentException('Invalid header syntax');
        }

$headers = [];

foreach ($headerLines as $headerLine) {
            $headers[$headerLine[1]][] = $headerLine[2];
        }

return [
            'start-line' => $startLine,
            'headers' => $headers,
            'body' => $body,
        ];
    }

/**
     * Constructs a URI for an HTTP request message.
     *
     * @param string $path    Path from the start-line
     * @param array  $headers Array of headers (each value an array).
     *
     * @return string
     */
    public static function parseRequestUri($path, array $headers)
    {
        $hostKey = array_filter(array_keys($headers), function ($k) {
            return strtolower($k) === 'host';
        });

// If no host is found, then a full URI cannot be constructed.
        if (!$hostKey) {
            return $path;
        }

$host = $headers[reset($hostKey)][0];
        $scheme = substr($host, -4) === ':443' ? 'https' : 'http';

return $scheme . '://' . $host . '/' . ltrim($path, '/');
    }

/**
     * Parses a request message string into a request object.
     *
     * @param string $message Request message string.
     *
     * @return Request
     */
    public static function parseRequest($message)
    {
        $data = self::parseMessage($message);
        $matches = [];
        if (!preg_match('/^[\S]+\s+([a-zA-Z]+:\/\/|\/).*/', $data['start-line'], $matches)) {
            throw new \InvalidArgumentException('Invalid request string');
        }
        $parts = explode(' ', $data['start-line'], 3);
        $version = isset($parts[2]) ? explode('/', $parts[2])[1] : '1.1';

$request = new Request(
            $parts[0],
            $matches[1] === '/' ? self::parseRequestUri($parts[1], $data['headers']) : $parts[1],
            $data['headers'],
            $data['body'],
            $version
        );

return $matches[1] === '/' ? $request : $request->withRequestTarget($parts[1]);
    }

/**
     * Parses a response message string into a response object.
     *
     * @param string $message Response message string.
     *
     * @return Response
     */
    public static function parseResponse($message)
    {
        $data = self::parseMessage($message);
        // According to https://tools.ietf.org/html/rfc7230#section-3.1.2 the space
        // between status-code and reason-phrase is required. But browsers accept
        // responses without space and reason as well.
        if (!preg_match('/^HTTP\/.* [0-9]{3}( .*|$)/', $data['start-line'])) {
            throw new \InvalidArgumentException('Invalid response string: ' . $data['start-line']);
        }
        $parts = explode(' ', $data['start-line'], 3);

return new Response(
            (int) $parts[1],
            $data['headers'],
            $data['body'],
            explode('/', $parts[0])[1],
            isset($parts[2]) ? $parts[2] : null
        );
    }
}

Nama File / Folder	Size	Action
AppendStream.php	5.633KB	Edit File Delete File Rename
BufferStream.php	3.007KB	Edit File Delete File Rename
CachingStream.php	4.346KB	Edit File Delete File Rename
DroppingStream.php	1.068KB	Edit File Delete File Rename
FnStream.php	3.865KB	Edit File Delete File Rename
Header.php	2.127KB	Edit File Delete File Rename
InflateStream.php	1.802KB	Edit File Delete File Rename
LazyOpenStream.php	0.879KB	Edit File Delete File Rename
LimitStream.php	4.126KB	Edit File Delete File Rename
Message.php	8.082KB	Edit File Delete File Rename
MessageTrait.php	7.672KB	Edit File Delete File Rename
MimeType.php	4.989KB	Edit File Delete File Rename
MultipartStream.php	4.657KB	Edit File Delete File Rename
NoSeekStream.php	0.429KB	Edit File Delete File Rename
PumpStream.php	3.988KB	Edit File Delete File Rename
Query.php	3.408KB	Edit File Delete File Rename
Request.php	3.632KB	Edit File Delete File Rename
Response.php	4.696KB	Edit File Delete File Rename
ServerRequest.php	9.621KB	Edit File Delete File Rename
Stream.php	6.65KB	Edit File Delete File Rename
StreamDecoratorTrait.php	3.214KB	Edit File Delete File Rename
StreamWrapper.php	3.69KB	Edit File Delete File Rename
UploadedFile.php	7.589KB	Edit File Delete File Rename
Uri.php	22.361KB	Edit File Delete File Rename
UriComparator.php	1.147KB	Edit File Delete File Rename
UriNormalizer.php	8.136KB	Edit File Delete File Rename
UriResolver.php	8.583KB	Edit File Delete File Rename
Utils.php	14.329KB	Edit File Delete File Rename
functions.php	13.095KB	Edit File Delete File Rename
functions_include.php	0.152KB	Edit File Delete File Rename