Message.php — Booking for Appointments and Events Calendar – Amelia 1.2.20

ameliabooking / vendor / guzzlehttp / psr7 / src / Message.php

ameliabooking / vendor / guzzlehttp / psr7 / src Last commit date

Message.php

253 lines

1	<?php
2
3	namespace AmeliaGuzzleHttp\Psr7;
4
5	use AmeliaPsr\Http\Message\MessageInterface;
6	use AmeliaPsr\Http\Message\RequestInterface;
7	use AmeliaPsr\Http\Message\ResponseInterface;
8
9	final class Message
10	{
11	/**
12	* Returns the string representation of an HTTP message.
13	*
14	* @param MessageInterface $message Message to convert to a string.
15	*
16	* @return string
17	*/
18	public static function toString(MessageInterface $message)
19	{
20	if ($message instanceof RequestInterface) {
21	$msg = trim($message->getMethod() . ' '
22	. $message->getRequestTarget())
23	. ' HTTP/' . $message->getProtocolVersion();
24	if (!$message->hasHeader('host')) {
25	$msg .= "\r\nHost: " . $message->getUri()->getHost();
26	}
27	} elseif ($message instanceof ResponseInterface) {
28	$msg = 'HTTP/' . $message->getProtocolVersion() . ' '
29	. $message->getStatusCode() . ' '
30	. $message->getReasonPhrase();
31	} else {
32	throw new \InvalidArgumentException('Unknown message type');
33	}
34
35	foreach ($message->getHeaders() as $name => $values) {
36	if (strtolower($name) === 'set-cookie') {
37	foreach ($values as $value) {
38	$msg .= "\r\n{$name}: " . $value;
39	}
40	} else {
41	$msg .= "\r\n{$name}: " . implode(', ', $values);
42	}
43	}
44
45	return "{$msg}\r\n\r\n" . $message->getBody();
46	}
47
48	/**
49	* Get a short summary of the message body.
50	*
51	* Will return `null` if the response is not printable.
52	*
53	* @param MessageInterface $message The message to get the body summary
54	* @param int $truncateAt The maximum allowed size of the summary
55	*
56	* @return string\|null
57	*/
58	public static function bodySummary(MessageInterface $message, $truncateAt = 120)
59	{
60	$body = $message->getBody();
61
62	if (!$body->isSeekable() \|\| !$body->isReadable()) {
63	return null;
64	}
65
66	$size = $body->getSize();
67
68	if ($size === 0) {
69	return null;
70	}
71
72	$summary = $body->read($truncateAt);
73	$body->rewind();
74
75	if ($size > $truncateAt) {
76	$summary .= ' (truncated...)';
77	}
78
79	// Matches any printable character, including unicode characters:
80	// letters, marks, numbers, punctuation, spacing, and separators.
81	if (preg_match('/[^\pL\pM\pN\pP\pS\pZ\n\r\t]/u', $summary)) {
82	return null;
83	}
84
85	return $summary;
86	}
87
88	/**
89	* Attempts to rewind a message body and throws an exception on failure.
90	*
91	* The body of the message will only be rewound if a call to `tell()`
92	* returns a value other than `0`.
93	*
94	* @param MessageInterface $message Message to rewind
95	*
96	* @throws \RuntimeException
97	*/
98	public static function rewindBody(MessageInterface $message)
99	{
100	$body = $message->getBody();
101
102	if ($body->tell()) {
103	$body->rewind();
104	}
105	}
106
107	/**
108	* Parses an HTTP message into an associative array.
109	*
110	* The array contains the "start-line" key containing the start line of
111	* the message, "headers" key containing an associative array of header
112	* array values, and a "body" key containing the body of the message.
113	*
114	* @param string $message HTTP request or response to parse.
115	*
116	* @return array
117	*/
118	public static function parseMessage($message)
119	{
120	if (!$message) {
121	throw new \InvalidArgumentException('Invalid message');
122	}
123
124	$message = ltrim($message, "\r\n");
125
126	$messageParts = preg_split("/\r?\n\r?\n/", $message, 2);
127
128	if ($messageParts === false \|\| count($messageParts) !== 2) {
129	throw new \InvalidArgumentException('Invalid message: Missing header delimiter');
130	}
131
132	list($rawHeaders, $body) = $messageParts;
133	$rawHeaders .= "\r\n"; // Put back the delimiter we split previously
134	$headerParts = preg_split("/\r?\n/", $rawHeaders, 2);
135
136	if ($headerParts === false \|\| count($headerParts) !== 2) {
137	throw new \InvalidArgumentException('Invalid message: Missing status line');
138	}
139
140	list($startLine, $rawHeaders) = $headerParts;
141
142	if (preg_match("/(?:^HTTP\/\|^[A-Z]+ \S+ HTTP\/)(\d+(?:\.\d+)?)/i", $startLine, $matches) && $matches[1] === '1.0') {
143	// Header folding is deprecated for HTTP/1.1, but allowed in HTTP/1.0
144	$rawHeaders = preg_replace(Rfc7230::HEADER_FOLD_REGEX, ' ', $rawHeaders);
145	}
146
147	/** @var array[] $headerLines */
148	$count = preg_match_all(Rfc7230::HEADER_REGEX, $rawHeaders, $headerLines, PREG_SET_ORDER);
149
150	// If these aren't the same, then one line didn't match and there's an invalid header.
151	if ($count !== substr_count($rawHeaders, "\n")) {
152	// Folding is deprecated, see https://tools.ietf.org/html/rfc7230#section-3.2.4
153	if (preg_match(Rfc7230::HEADER_FOLD_REGEX, $rawHeaders)) {
154	throw new \InvalidArgumentException('Invalid header syntax: Obsolete line folding');
155	}
156
157	throw new \InvalidArgumentException('Invalid header syntax');
158	}
159
160	$headers = [];
161
162	foreach ($headerLines as $headerLine) {
163	$headers[$headerLine[1]][] = $headerLine[2];
164	}
165
166	return [
167	'start-line' => $startLine,
168	'headers' => $headers,
169	'body' => $body,
170	];
171	}
172
173	/**
174	* Constructs a URI for an HTTP request message.
175	*
176	* @param string $path Path from the start-line
177	* @param array $headers Array of headers (each value an array).
178	*
179	* @return string
180	*/
181	public static function parseRequestUri($path, array $headers)
182	{
183	$hostKey = array_filter(array_keys($headers), function ($k) {
184	return strtolower($k) === 'host';
185	});
186
187	// If no host is found, then a full URI cannot be constructed.
188	if (!$hostKey) {
189	return $path;
190	}
191
192	$host = $headers[reset($hostKey)][0];
193	$scheme = substr($host, -4) === ':443' ? 'https' : 'http';
194
195	return $scheme . '://' . $host . '/' . ltrim($path, '/');
196	}
197
198	/**
199	* Parses a request message string into a request object.
200	*
201	* @param string $message Request message string.
202	*
203	* @return Request
204	*/
205	public static function parseRequest($message)
206	{
207	$data = self::parseMessage($message);
208	$matches = [];
209	if (!preg_match('/^[\S]+\s+([a-zA-Z]+:\/\/\|\/).*/', $data['start-line'], $matches)) {
210	throw new \InvalidArgumentException('Invalid request string');
211	}
212	$parts = explode(' ', $data['start-line'], 3);
213	$version = isset($parts[2]) ? explode('/', $parts[2])[1] : '1.1';
214
215	$request = new Request(
216	$parts[0],
217	$matches[1] === '/' ? self::parseRequestUri($parts[1], $data['headers']) : $parts[1],
218	$data['headers'],
219	$data['body'],
220	$version
221	);
222
223	return $matches[1] === '/' ? $request : $request->withRequestTarget($parts[1]);
224	}
225
226	/**
227	* Parses a response message string into a response object.
228	*
229	* @param string $message Response message string.
230	*
231	* @return Response
232	*/
233	public static function parseResponse($message)
234	{
235	$data = self::parseMessage($message);
236	// According to https://tools.ietf.org/html/rfc7230#section-3.1.2 the space
237	// between status-code and reason-phrase is required. But browsers accept
238	// responses without space and reason as well.
239	if (!preg_match('/^HTTP\/.* [0-9]{3}( .*\|$)/', $data['start-line'])) {
240	throw new \InvalidArgumentException('Invalid response string: ' . $data['start-line']);
241	}
242	$parts = explode(' ', $data['start-line'], 3);
243
244	return new Response(
245	(int) $parts[1],
246	$data['headers'],
247	$data['body'],
248	explode('/', $parts[0])[1],
249	isset($parts[2]) ? $parts[2] : null
250	);
251	}
252	}
253