Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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MessageParser.php
001 <?php
002 namespace GuzzleHttp\Message;
003
004 /**
005 * Request and response parser used by Guzzle
006 */
007 class MessageParser
008 {
009 /**
010 * Parse an HTTP request message into an associative array of parts.
011 *
012 * @param string $message HTTP request to parse
013 *
014 * @return array|bool Returns false if the message is invalid
015 */
016 public function parseRequest($message)
017 {
018 if (!($parts = $this->parseMessage($message))) {
019 return false;
020 }
021
022 // Parse the protocol and protocol version
023 if (isset($parts['start_line'][2])) {
024 $startParts = explode('/', $parts['start_line'][2]);
025 $protocol = strtoupper($startParts[0]);
026 $version = isset($startParts[1]) ? $startParts[1] : '1.1';
027 } else {
028 $protocol = 'HTTP';
029 $version = '1.1';
030 }
031
032 $parsed = [
033 'method' => strtoupper($parts['start_line'][0]),
034 'protocol' => $protocol,
035 'protocol_version' => $version,
036 'headers' => $parts['headers'],
037 'body' => $parts['body']
038 ];
039
040 $parsed['request_url'] = $this->getUrlPartsFromMessage(
041 (isset($parts['start_line'][1]) ? $parts['start_line'][1] : ''), $parsed);
042
043 return $parsed;
044 }
045
046 /**
047 * Parse an HTTP response message into an associative array of parts.
048 *
049 * @param string $message HTTP response to parse
050 *
051 * @return array|bool Returns false if the message is invalid
052 */
053 public function parseResponse($message)
054 {
055 if (!($parts = $this->parseMessage($message))) {
056 return false;
057 }
058
059 list($protocol, $version) = explode('/', trim($parts['start_line'][0]));
060
061 return [
062 'protocol' => $protocol,
063 'protocol_version' => $version,
064 'code' => $parts['start_line'][1],
065 'reason_phrase' => isset($parts['start_line'][2]) ? $parts['start_line'][2] : '',
066 'headers' => $parts['headers'],
067 'body' => $parts['body']
068 ];
069 }
070
071 /**
072 * Parse a message into parts
073 *
074 * @param string $message Message to parse
075 *
076 * @return array|bool
077 */
078 private function parseMessage($message)
079 {
080 if (!$message) {
081 return false;
082 }
083
084 $startLine = null;
085 $headers = [];
086 $body = '';
087
088 // Iterate over each line in the message, accounting for line endings
089 $lines = preg_split('/(\\r?\\n)/', $message, -1, PREG_SPLIT_DELIM_CAPTURE);
090 for ($i = 0, $totalLines = count($lines); $i < $totalLines; $i += 2) {
091
092 $line = $lines[$i];
093
094 // If two line breaks were encountered, then this is the end of body
095 if (empty($line)) {
096 if ($i < $totalLines - 1) {
097 $body = implode('', array_slice($lines, $i + 2));
098 }
099 break;
100 }
101
102 // Parse message headers
103 if (!$startLine) {
104 $startLine = explode(' ', $line, 3);
105 } elseif (strpos($line, ':')) {
106 $parts = explode(':', $line, 2);
107 $key = trim($parts[0]);
108 $value = isset($parts[1]) ? trim($parts[1]) : '';
109 if (!isset($headers[$key])) {
110 $headers[$key] = $value;
111 } elseif (!is_array($headers[$key])) {
112 $headers[$key] = [$headers[$key], $value];
113 } else {
114 $headers[$key][] = $value;
115 }
116 }
117 }
118
119 return [
120 'start_line' => $startLine,
121 'headers' => $headers,
122 'body' => $body
123 ];
124 }
125
126 /**
127 * Create URL parts from HTTP message parts
128 *
129 * @param string $requestUrl Associated URL
130 * @param array $parts HTTP message parts
131 *
132 * @return array
133 */
134 private function getUrlPartsFromMessage($requestUrl, array $parts)
135 {
136 // Parse the URL information from the message
137 $urlParts = ['path' => $requestUrl, 'scheme' => 'http'];
138
139 // Check for the Host header
140 if (isset($parts['headers']['Host'])) {
141 $urlParts['host'] = $parts['headers']['Host'];
142 } elseif (isset($parts['headers']['host'])) {
143 $urlParts['host'] = $parts['headers']['host'];
144 } else {
145 $urlParts['host'] = null;
146 }
147
148 if (false === strpos($urlParts['host'], ':')) {
149 $urlParts['port'] = '';
150 } else {
151 $hostParts = explode(':', $urlParts['host']);
152 $urlParts['host'] = trim($hostParts[0]);
153 $urlParts['port'] = (int) trim($hostParts[1]);
154 if ($urlParts['port'] == 443) {
155 $urlParts['scheme'] = 'https';
156 }
157 }
158
159 // Check if a query is present
160 $path = $urlParts['path'];
161 $qpos = strpos($path, '?');
162 if ($qpos) {
163 $urlParts['query'] = substr($path, $qpos + 1);
164 $urlParts['path'] = substr($path, 0, $qpos);
165 } else {
166 $urlParts['query'] = '';
167 }
168
169 return $urlParts;
170 }
171 }
172