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<?php |
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namespace Dudlewebs\WPMCS\s3\GuzzleHttp\Psr7; |
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|
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use Dudlewebs\WPMCS\s3\Psr\Http\Message\MessageInterface; |
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use Dudlewebs\WPMCS\s3\Psr\Http\Message\RequestInterface; |
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use Dudlewebs\WPMCS\s3\Psr\Http\Message\ResponseInterface; |
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final class Message |
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{ |
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/** |
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* Returns the string representation of an HTTP message. |
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* |
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* @param MessageInterface $message Message to convert to a string. |
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* |
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* @return string |
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*/ |
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public static function toString(MessageInterface $message) |
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{ |
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if ($message instanceof RequestInterface) { |
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$msg = \trim($message->getMethod() . ' ' . $message->getRequestTarget()) . ' HTTP/' . $message->getProtocolVersion(); |
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if (!$message->hasHeader('host')) { |
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$msg .= "\r\nHost: " . $message->getUri()->getHost(); |
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} |
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} elseif ($message instanceof ResponseInterface) { |
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$msg = 'HTTP/' . $message->getProtocolVersion() . ' ' . $message->getStatusCode() . ' ' . $message->getReasonPhrase(); |
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} else { |
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throw new \InvalidArgumentException('Unknown message type'); |
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} |
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foreach ($message->getHeaders() as $name => $values) { |
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if (\strtolower($name) === 'set-cookie') { |
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foreach ($values as $value) { |
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$msg .= "\r\n{$name}: " . $value; |
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} |
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} else { |
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$msg .= "\r\n{$name}: " . \implode(', ', $values); |
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} |
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} |
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return "{$msg}\r\n\r\n" . $message->getBody(); |
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} |
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/** |
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* Get a short summary of the message body. |
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* |
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* Will return `null` if the response is not printable. |
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* |
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* @param MessageInterface $message The message to get the body summary |
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* @param int $truncateAt The maximum allowed size of the summary |
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* |
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* @return string|null |
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*/ |
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public static function bodySummary(MessageInterface $message, $truncateAt = 120) |
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{ |
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$body = $message->getBody(); |
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if (!$body->isSeekable() || !$body->isReadable()) { |
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return null; |
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} |
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$size = $body->getSize(); |
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if ($size === 0) { |
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return null; |
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} |
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$summary = $body->read($truncateAt); |
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$body->rewind(); |
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if ($size > $truncateAt) { |
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$summary .= ' (truncated...)'; |
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} |
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// Matches any printable character, including unicode characters: |
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// letters, marks, numbers, punctuation, spacing, and separators. |
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if (\preg_match('/[^\\pL\\pM\\pN\\pP\\pS\\pZ\\n\\r\\t]/u', $summary)) { |
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return null; |
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} |
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return $summary; |
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} |
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/** |
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* Attempts to rewind a message body and throws an exception on failure. |
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* |
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* The body of the message will only be rewound if a call to `tell()` |
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* returns a value other than `0`. |
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* |
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* @param MessageInterface $message Message to rewind |
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* |
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* @throws \RuntimeException |
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*/ |
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public static function rewindBody(MessageInterface $message) |
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{ |
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$body = $message->getBody(); |
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if ($body->tell()) { |
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$body->rewind(); |
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} |
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} |
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/** |
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* Parses an HTTP message into an associative array. |
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* |
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* The array contains the "start-line" key containing the start line of |
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* the message, "headers" key containing an associative array of header |
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* array values, and a "body" key containing the body of the message. |
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* |
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* @param string $message HTTP request or response to parse. |
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* |
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* @return array |
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*/ |
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public static function parseMessage($message) |
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{ |
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if (!$message) { |
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throw new \InvalidArgumentException('Invalid message'); |
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} |
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$message = \ltrim($message, "\r\n"); |
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$messageParts = \preg_split("/\r?\n\r?\n/", $message, 2); |
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if ($messageParts === \false || \count($messageParts) !== 2) { |
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throw new \InvalidArgumentException('Invalid message: Missing header delimiter'); |
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} |
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list($rawHeaders, $body) = $messageParts; |
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$rawHeaders .= "\r\n"; |
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// Put back the delimiter we split previously |
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$headerParts = \preg_split("/\r?\n/", $rawHeaders, 2); |
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if ($headerParts === \false || \count($headerParts) !== 2) { |
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throw new \InvalidArgumentException('Invalid message: Missing status line'); |
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} |
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list($startLine, $rawHeaders) = $headerParts; |
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if (\preg_match("/(?:^HTTP\\/|^[A-Z]+ \\S+ HTTP\\/)(\\d+(?:\\.\\d+)?)/i", $startLine, $matches) && $matches[1] === '1.0') { |
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// Header folding is deprecated for HTTP/1.1, but allowed in HTTP/1.0 |
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$rawHeaders = \preg_replace(Rfc7230::HEADER_FOLD_REGEX, ' ', $rawHeaders); |
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} |
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/** @var array[] $headerLines */ |
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$count = \preg_match_all(Rfc7230::HEADER_REGEX, $rawHeaders, $headerLines, \PREG_SET_ORDER); |
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// If these aren't the same, then one line didn't match and there's an invalid header. |
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if ($count !== \substr_count($rawHeaders, "\n")) { |
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// Folding is deprecated, see https://tools.ietf.org/html/rfc7230#section-3.2.4 |
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if (\preg_match(Rfc7230::HEADER_FOLD_REGEX, $rawHeaders)) { |
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throw new \InvalidArgumentException('Invalid header syntax: Obsolete line folding'); |
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} |
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throw new \InvalidArgumentException('Invalid header syntax'); |
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} |
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$headers = []; |
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foreach ($headerLines as $headerLine) { |
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$headers[$headerLine[1]][] = $headerLine[2]; |
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} |
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return ['start-line' => $startLine, 'headers' => $headers, 'body' => $body]; |
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} |
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/** |
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* Constructs a URI for an HTTP request message. |
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* |
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* @param string $path Path from the start-line |
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* @param array $headers Array of headers (each value an array). |
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* |
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* @return string |
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*/ |
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public static function parseRequestUri($path, array $headers) |
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{ |
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$hostKey = \array_filter(\array_keys($headers), function ($k) { |
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return \strtolower($k) === 'host'; |
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}); |
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// If no host is found, then a full URI cannot be constructed. |
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if (!$hostKey) { |
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return $path; |
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} |
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$host = $headers[\reset($hostKey)][0]; |
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$scheme = \substr($host, -4) === ':443' ? 'https' : 'http'; |
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return $scheme . '://' . $host . '/' . \ltrim($path, '/'); |
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} |
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/** |
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* Parses a request message string into a request object. |
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* |
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* @param string $message Request message string. |
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* |
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* @return Request |
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*/ |
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public static function parseRequest($message) |
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{ |
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$data = self::parseMessage($message); |
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$matches = []; |
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if (!\preg_match('/^[\\S]+\\s+([a-zA-Z]+:\\/\\/|\\/).*/', $data['start-line'], $matches)) { |
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throw new \InvalidArgumentException('Invalid request string'); |
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} |
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$parts = \explode(' ', $data['start-line'], 3); |
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$version = isset($parts[2]) ? \explode('/', $parts[2])[1] : '1.1'; |
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$request = new Request($parts[0], $matches[1] === '/' ? self::parseRequestUri($parts[1], $data['headers']) : $parts[1], $data['headers'], $data['body'], $version); |
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return $matches[1] === '/' ? $request : $request->withRequestTarget($parts[1]); |
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} |
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/** |
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* Parses a response message string into a response object. |
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* |
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* @param string $message Response message string. |
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* |
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* @return Response |
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*/ |
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public static function parseResponse($message) |
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{ |
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$data = self::parseMessage($message); |
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// According to https://tools.ietf.org/html/rfc7230#section-3.1.2 the space |
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// between status-code and reason-phrase is required. But browsers accept |
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// responses without space and reason as well. |
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if (!\preg_match('/^HTTP\\/.* [0-9]{3}( .*|$)/', $data['start-line'])) { |
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throw new \InvalidArgumentException('Invalid response string: ' . $data['start-line']); |
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} |
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$parts = \explode(' ', $data['start-line'], 3); |
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return new Response((int) $parts[1], $data['headers'], $data['body'], \explode('/', $parts[0])[1], isset($parts[2]) ? $parts[2] : null); |
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} |
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} |
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