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) { $msg .= "\r\n{$name}: " . implode(', ', $values); } return "{$msg}\r\n\r\n" . $message->getBody(); } /** * Returns a UriInterface for the given value. * * This function accepts a string or {@see Psr\Http\Message\UriInterface} and * returns a UriInterface for the given value. If the value is already a * `UriInterface`, it is returned as-is. * * @param string|UriInterface $uri * * @return UriInterface * @throws \InvalidArgumentException */ function uri_for($uri) { if ($uri instanceof UriInterface) { return $uri; } elseif (is_string($uri)) { return new Uri($uri); } throw new \InvalidArgumentException('URI must be a string or UriInterface'); } /** * Create a new stream based on the input type. * * Options is an associative array that can contain the following keys: * - metadata: Array of custom metadata. * - size: Size of the stream. * * @param resource|string|null|int|float|bool|StreamInterface|callable $resource Entity body data * @param array $options Additional options * * @return Stream * @throws \InvalidArgumentException if the $resource arg is not valid. */ function stream_for($resource = '', array $options = []) { if (is_scalar($resource)) { $stream = fopen('php://temp', 'r+'); if ($resource !== '') { fwrite($stream, $resource); fseek($stream, 0); } return new Stream($stream, $options); } switch (gettype($resource)) { case 'resource': return new Stream($resource, $options); case 'object': if ($resource instanceof StreamInterface) { return $resource; } elseif ($resource instanceof \Iterator) { return new PumpStream(function () use ($resource) { if (!$resource->valid()) { return false; } $result = $resource->current(); $resource->next(); return $result; }, $options); } elseif (method_exists($resource, '__toString')) { return stream_for((string) $resource, $options); } break; case 'NULL': return new Stream(fopen('php://temp', 'r+'), $options); } if (is_callable($resource)) { return new PumpStream($resource, $options); } throw new \InvalidArgumentException('Invalid resource type: ' . gettype($resource)); } /** * Parse an array of header values containing ";" separated data into an * array of associative arrays representing the header key value pair * data of the header. When a parameter does not contain a value, but just * contains a key, this function will inject a key with a '' string value. * * @param string|array $header Header to parse into components. * * @return array Returns the parsed header values. */ function parse_header($header) { static $trimmed = "\"' \n\t\r"; $params = $matches = []; foreach (normalize_header($header) as $val) { $part = []; foreach (preg_split('/;(?=([^"]*"[^"]*")*[^"]*$)/', $val) as $kvp) { if (preg_match_all('/<[^>]+>|[^=]+/', $kvp, $matches)) { $m = $matches[0]; if (isset($m[1])) { $part[trim($m[0], $trimmed)] = trim($m[1], $trimmed); } else { $part[] = trim($m[0], $trimmed); } } } if ($part) { $params[] = $part; } } return $params; } /** * Converts an array of header values that may contain comma separated * headers into an array of headers with no comma separated values. * * @param string|array $header Header to normalize. * * @return array Returns the normalized header field values. */ function normalize_header($header) { if (!is_array($header)) { return array_map('trim', explode(',', $header)); } $result = []; foreach ($header as $value) { foreach ((array) $value as $v) { if (strpos($v, ',') === false) { $result[] = $v; continue; } foreach (preg_split('/,(?=([^"]*"[^"]*")*[^"]*$)/', $v) as $vv) { $result[] = trim($vv); } } } return $result; } /** * Clone and modify a request with the given changes. * * The changes can be one of: * - method: (string) Changes the HTTP method. * - set_headers: (array) Sets the given headers. * - remove_headers: (array) Remove the given headers. * - body: (mixed) Sets the given body. * - uri: (UriInterface) Set the URI. * - query: (string) Set the query string value of the URI. * - version: (string) Set the protocol version. * * @param RequestInterface $request Request to clone and modify. * @param array $changes Changes to apply. * * @return RequestInterface */ function modify_request(RequestInterface $request, array $changes) { if (!$changes) { return $request; } $headers = $request->getHeaders(); if (!isset($changes['uri'])) { $uri = $request->getUri(); } else { // Remove the host header if one is on the URI if ($host = $changes['uri']->getHost()) { $changes['set_headers']['Host'] = $host; if ($port = $changes['uri']->getPort()) { $standardPorts = ['http' => 80, 'https' => 443]; $scheme = $changes['uri']->getScheme(); if (isset($standardPorts[$scheme]) && $port != $standardPorts[$scheme]) { $changes['set_headers']['Host'] .= ':'.$port; } } } $uri = $changes['uri']; } if (!empty($changes['remove_headers'])) { $headers = _caseless_remove($changes['remove_headers'], $headers); } if (!empty($changes['set_headers'])) { $headers = _caseless_remove(array_keys($changes['set_headers']), $headers); $headers = $changes['set_headers'] + $headers; } if (isset($changes['query'])) { $uri = $uri->withQuery($changes['query']); } if ($request instanceof ServerRequestInterface) { return new ServerRequest( isset($changes['method']) ? $changes['method'] : $request->getMethod(), $uri, $headers, isset($changes['body']) ? $changes['body'] : $request->getBody(), isset($changes['version']) ? $changes['version'] : $request->getProtocolVersion(), $request->getServerParams() ); } return new Request( isset($changes['method']) ? $changes['method'] : $request->getMethod(), $uri, $headers, isset($changes['body']) ? $changes['body'] : $request->getBody(), isset($changes['version']) ? $changes['version'] : $request->getProtocolVersion() ); } /** * 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 */ function rewind_body(MessageInterface $message) { $body = $message->getBody(); if ($body->tell()) { $body->rewind(); } } /** * Safely opens a PHP stream resource using a filename. * * When fopen fails, PHP normally raises a warning. This function adds an * error handler that checks for errors and throws an exception instead. * * @param string $filename File to open * @param string $mode Mode used to open the file * * @return resource * @throws \RuntimeException if the file cannot be opened */ function try_fopen($filename, $mode) { $ex = null; set_error_handler(function () use ($filename, $mode, &$ex) { $ex = new \RuntimeException(sprintf( 'Unable to open %s using mode %s: %s', $filename, $mode, func_get_args()[1] )); }); $handle = fopen($filename, $mode); restore_error_handler(); if ($ex) { /** @var $ex \RuntimeException */ throw $ex; } return $handle; } /** * Copy the contents of a stream into a string until the given number of * bytes have been read. * * @param StreamInterface $stream Stream to read * @param int $maxLen Maximum number of bytes to read. Pass -1 * to read the entire stream. * @return string * @throws \RuntimeException on error. */ function copy_to_string(StreamInterface $stream, $maxLen = -1) { $buffer = ''; if ($maxLen === -1) { while (!$stream->eof()) { $buf = $stream->read(1048576); // Using a loose equality here to match on '' and false. if ($buf == null) { break; } $buffer .= $buf; } return $buffer; } $len = 0; while (!$stream->eof() && $len < $maxLen) { $buf = $stream->read($maxLen - $len); // Using a loose equality here to match on '' and false. if ($buf == null) { break; } $buffer .= $buf; $len = strlen($buffer); } return $buffer; } /** * Copy the contents of a stream into another stream until the given number * of bytes have been read. * * @param StreamInterface $source Stream to read from * @param StreamInterface $dest Stream to write to * @param int $maxLen Maximum number of bytes to read. Pass -1 * to read the entire stream. * * @throws \RuntimeException on error. */ function copy_to_stream( StreamInterface $source, StreamInterface $dest, $maxLen = -1 ) { if ($maxLen === -1) { while (!$source->eof()) { if (!$dest->write($source->read(1048576))) { break; } } return; } $bytes = 0; while (!$source->eof()) { $buf = $source->read($maxLen - $bytes); if (!($len = strlen($buf))) { break; } $bytes += $len; $dest->write($buf); if ($bytes == $maxLen) { break; } } } /** * Calculate a hash of a Stream * * @param StreamInterface $stream Stream to calculate the hash for * @param string $algo Hash algorithm (e.g. md5, crc32, etc) * @param bool $rawOutput Whether or not to use raw output * * @return string Returns the hash of the stream * @throws \RuntimeException on error. */ function hash( StreamInterface $stream, $algo, $rawOutput = false ) { $pos = $stream->tell(); if ($pos > 0) { $stream->rewind(); } $ctx = hash_init($algo); while (!$stream->eof()) { hash_update($ctx, $stream->read(1048576)); } $out = hash_final($ctx, (bool) $rawOutput); $stream->seek($pos); return $out; } /** * Read a line from the stream up to the maximum allowed buffer length * * @param StreamInterface $stream Stream to read from * @param int $maxLength Maximum buffer length * * @return string|bool */ function readline(StreamInterface $stream, $maxLength = null) { $buffer = ''; $size = 0; while (!$stream->eof()) { // Using a loose equality here to match on '' and false. if (null == ($byte = $stream->read(1))) { return $buffer; } $buffer .= $byte; // Break when a new line is found or the max length - 1 is reached if ($byte === "\n" || ++$size === $maxLength - 1) { break; } } return $buffer; } /** * Parses a request message string into a request object. * * @param string $message Request message string. * * @return Request */ function parse_request($message) { $data = _parse_message($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], $matches[1] === '/' ? _parse_request_uri($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 $message Response message string. * * @return Response */ function parse_response($message) { $data = _parse_message($message); if (!preg_match('/^HTTP\/.* [0-9]{3} .*/', $data['start-line'])) { throw new \InvalidArgumentException('Invalid response string'); } $parts = explode(' ', $data['start-line'], 3); return new Response( $parts[1], $data['headers'], $data['body'], explode('/', $parts[0])[1], isset($parts[2]) ? $parts[2] : null ); } /** * Parse a query string into an associative array. * * If multiple values are found for the same key, the value of that key * value pair will become an array. This function does not parse nested * PHP style arrays into an associative array (e.g., foo[a]=1&foo[b]=2 will * be parsed into ['foo[a]' => '1', 'foo[b]' => '2']). * * @param string $str Query string to parse * @param bool|string $urlEncoding How the query string is encoded * * @return array */ function parse_query($str, $urlEncoding = true) { $result = []; if ($str === '') { return $result; } if ($urlEncoding === true) { $decoder = function ($value) { return rawurldecode(str_replace('+', ' ', $value)); }; } elseif ($urlEncoding == PHP_QUERY_RFC3986) { $decoder = 'rawurldecode'; } elseif ($urlEncoding == PHP_QUERY_RFC1738) { $decoder = 'urldecode'; } else { $decoder = function ($str) { return $str; }; } foreach (explode('&', $str) as $kvp) { $parts = explode('=', $kvp, 2); $key = $decoder($parts[0]); $value = isset($parts[1]) ? $decoder($parts[1]) : null; if (!isset($result[$key])) { $result[$key] = $value; } else { if (!is_array($result[$key])) { $result[$key] = [$result[$key]]; } $result[$key][] = $value; } } return $result; } /** * Build a query string from an array of key value pairs. * * This function can use the return value of parse_query() to build a query * string. This function does not modify the provided keys when an array is * encountered (like http_build_query would). * * @param array $params Query string parameters. * @param int|false $encoding Set to false to not encode, PHP_QUERY_RFC3986 * to encode using RFC3986, or PHP_QUERY_RFC1738 * to encode using RFC1738. * @return string */ function build_query(array $params, $encoding = PHP_QUERY_RFC3986) { if (!$params) { return ''; } if ($encoding === false) { $encoder = function ($str) { return $str; }; } elseif ($encoding === PHP_QUERY_RFC3986) { $encoder = 'rawurlencode'; } elseif ($encoding === PHP_QUERY_RFC1738) { $encoder = 'urlencode'; } else { throw new \InvalidArgumentException('Invalid type'); } $qs = ''; foreach ($params as $k => $v) { $k = $encoder($k); if (!is_array($v)) { $qs .= $k; if ($v !== null) { $qs .= '=' . $encoder($v); } $qs .= '&'; } else { foreach ($v as $vv) { $qs .= $k; if ($vv !== null) { $qs .= '=' . $encoder($vv); } $qs .= '&'; } } } return $qs ? (string) substr($qs, 0, -1) : ''; } /** * Determines the mimetype of a file by looking at its extension. * * @param $filename * * @return null|string */ function mimetype_from_filename($filename) { return mimetype_from_extension(pathinfo($filename, PATHINFO_EXTENSION)); } /** * Maps a file extensions to a mimetype. * * @param $extension string The file extension. * * @return string|null * @link http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types */ function mimetype_from_extension($extension) { static $mimetypes = [ '7z' => 'application/x-7z-compressed', 'aac' => 'audio/x-aac', 'ai' => 'application/postscript', 'aif' => 'audio/x-aiff', 'asc' => 'text/plain', 'asf' => 'video/x-ms-asf', 'atom' => 'application/atom+xml', 'avi' => 'video/x-msvideo', 'bmp' => 'image/bmp', 'bz2' => 'application/x-bzip2', 'cer' => 'application/pkix-cert', 'crl' => 'application/pkix-crl', 'crt' => 'application/x-x509-ca-cert', 'css' => 'text/css', 'csv' => 'text/csv', 'cu' => 'application/cu-seeme', 'deb' => 'application/x-debian-package', 'doc' => 'application/msword', 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'dvi' => 'application/x-dvi', 'eot' => 'application/vnd.ms-fontobject', 'eps' => 'application/postscript', 'epub' => 'application/epub+zip', 'etx' => 'text/x-setext', 'flac' => 'audio/flac', 'flv' => 'video/x-flv', 'gif' => 'image/gif', 'gz' => 'application/gzip', 'htm' => 'text/html', 'html' => 'text/html', 'ico' => 'image/x-icon', 'ics' => 'text/calendar', 'ini' => 'text/plain', 'iso' => 'application/x-iso9660-image', 'jar' => 'application/java-archive', 'jpe' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg', 'js' => 'text/javascript', 'json' => 'application/json', 'latex' => 'application/x-latex', 'log' => 'text/plain', 'm4a' => 'audio/mp4', 'm4v' => 'video/mp4', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mov' => 'video/quicktime', 'mp3' => 'audio/mpeg', 'mp4' => 'video/mp4', 'mp4a' => 'audio/mp4', 'mp4v' => 'video/mp4', 'mpe' => 'video/mpeg', 'mpeg' => 'video/mpeg', 'mpg' => 'video/mpeg', 'mpg4' => 'video/mp4', 'oga' => 'audio/ogg', 'ogg' => 'audio/ogg', 'ogv' => 'video/ogg', 'ogx' => 'application/ogg', 'pbm' => 'image/x-portable-bitmap', 'pdf' => 'application/pdf', 'pgm' => 'image/x-portable-graymap', 'png' => 'image/png', 'pnm' => 'image/x-portable-anymap', 'ppm' => 'image/x-portable-pixmap', 'ppt' => 'application/vnd.ms-powerpoint', 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', 'ps' => 'application/postscript', 'qt' => 'video/quicktime', 'rar' => 'application/x-rar-compressed', 'ras' => 'image/x-cmu-raster', 'rss' => 'application/rss+xml', 'rtf' => 'application/rtf', 'sgm' => 'text/sgml', 'sgml' => 'text/sgml', 'svg' => 'image/svg+xml', 'swf' => 'application/x-shockwave-flash', 'tar' => 'application/x-tar', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'torrent' => 'application/x-bittorrent', 'ttf' => 'application/x-font-ttf', 'txt' => 'text/plain', 'wav' => 'audio/x-wav', 'webm' => 'video/webm', 'wma' => 'audio/x-ms-wma', 'wmv' => 'video/x-ms-wmv', 'woff' => 'application/x-font-woff', 'wsdl' => 'application/wsdl+xml', 'xbm' => 'image/x-xbitmap', 'xls' => 'application/vnd.ms-excel', 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xml' => 'application/xml', 'xpm' => 'image/x-xpixmap', 'xwd' => 'image/x-xwindowdump', 'yaml' => 'text/yaml', 'yml' => 'text/yaml', 'zip' => 'application/zip', ]; $extension = strtolower($extension); return isset($mimetypes[$extension]) ? $mimetypes[$extension] : null; } /** * 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 $message HTTP request or response to parse. * * @return array * @internal */ function _parse_message($message) { if (!$message) { throw new \InvalidArgumentException('Invalid message'); } // Iterate over each line in the message, accounting for line endings $lines = preg_split('/(\\r?\\n)/', $message, -1, PREG_SPLIT_DELIM_CAPTURE); $result = ['start-line' => array_shift($lines), 'headers' => [], 'body' => '']; array_shift($lines); for ($i = 0, $totalLines = count($lines); $i < $totalLines; $i += 2) { $line = $lines[$i]; // If two line breaks were encountered, then this is the end of body if (empty($line)) { if ($i < $totalLines - 1) { $result['body'] = implode('', array_slice($lines, $i + 2)); } break; } if (strpos($line, ':')) { $parts = explode(':', $line, 2); $key = trim($parts[0]); $value = isset($parts[1]) ? trim($parts[1]) : ''; $result['headers'][$key][] = $value; } } return $result; } /** * Constructs a URI for an HTTP request message. * * @param string $path Path from the start-line * @param array $headers Array of headers (each value an array). * * @return string * @internal */ function _parse_request_uri($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, '/'); } /** @internal */ function _caseless_remove($keys, array $data) { $result = []; foreach ($keys as &$key) { $key = strtolower($key); } foreach ($data as $k => $v) { if (!in_array(strtolower($k), $keys)) { $result[$k] = $v; } } return $result; }