vendor/guzzlehttp/psr7/src/Message.php

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<?php

declare(strict_types=1);

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.
     */
    public static function toString(MessageInterface $message): string
    {
        if ($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
     */
    public static function bodySummary(MessageInterface $message, int $truncateAt = 120): ?string
    {
        $body = $message->getBody();

        if (!$body->isSeekable() || !$body->isReadable()) {