197 lines
8.4 KiB
PHP
197 lines
8.4 KiB
PHP
<?php
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namespace Google\Site_Kit_Dependencies\GuzzleHttp\Psr7;
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use Google\Site_Kit_Dependencies\Psr\Http\Message\MessageInterface;
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use Google\Site_Kit_Dependencies\Psr\Http\Message\RequestInterface;
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use Google\Site_Kit_Dependencies\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(\Google\Site_Kit_Dependencies\Psr\Http\Message\MessageInterface $message)
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{
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if ($message instanceof \Google\Site_Kit_Dependencies\Psr\Http\Message\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 \Google\Site_Kit_Dependencies\Psr\Http\Message\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(\Google\Site_Kit_Dependencies\Psr\Http\Message\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(\Google\Site_Kit_Dependencies\Psr\Http\Message\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(\Google\Site_Kit_Dependencies\GuzzleHttp\Psr7\Rfc7230::HEADER_FOLD_REGEX, ' ', $rawHeaders);
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}
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/** @var array[] $headerLines */
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$count = \preg_match_all(\Google\Site_Kit_Dependencies\GuzzleHttp\Psr7\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(\Google\Site_Kit_Dependencies\GuzzleHttp\Psr7\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 \Google\Site_Kit_Dependencies\GuzzleHttp\Psr7\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 \Google\Site_Kit_Dependencies\GuzzleHttp\Psr7\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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