diff options
Diffstat (limited to 'vendor/guzzlehttp/psr7/src/Message.php')
| -rw-r--r-- | vendor/guzzlehttp/psr7/src/Message.php | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/vendor/guzzlehttp/psr7/src/Message.php b/vendor/guzzlehttp/psr7/src/Message.php new file mode 100644 index 000000000..6e6c3e51b --- /dev/null +++ b/vendor/guzzlehttp/psr7/src/Message.php @@ -0,0 +1,246 @@ +<?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 => $values) { + if (is_string($name) && 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()) { + return null; + } + + $size = $body->getSize(); + + if ($size === 0) { + return null; + } + + $body->rewind(); + $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) !== 0) { + 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): void + { + $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. + */ + public static function parseMessage(string $message): array + { + if (!$message) { + throw new \InvalidArgumentException('Invalid message'); + } + + $message = ltrim($message, "\r\n"); + + $messageParts = preg_split("/\r?\n\r?\n/", $message, 2); + + if ($messageParts === false || count($messageParts) !== 2) { + throw new \InvalidArgumentException('Invalid message: Missing header delimiter'); + } + + [$rawHeaders, $body] = $messageParts; + $rawHeaders .= "\r\n"; // Put back the delimiter we split previously + $headerParts = preg_split("/\r?\n/", $rawHeaders, 2); + + if ($headerParts === false || count($headerParts) !== 2) { + throw new \InvalidArgumentException('Invalid message: Missing status line'); + } + + [$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). + */ + public static function parseRequestUri(string $path, array $headers): string + { + $hostKey = array_filter(array_keys($headers), function ($k) { + // Numeric array keys are converted to int by PHP. + $k = (string) $k; + + return strtolower($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. + */ + public static function parseRequest(string $message): RequestInterface + { + $data = self::parseMessage($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. + */ + public static function parseResponse(string $message): ResponseInterface + { + $data = self::parseMessage($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], + $parts[2] ?? null + ); + } +} |