Data_and_files::parse_multipart_analyze_parts() - Code Metrics - Inspection of "Form tests for `cs\Request\Data_and_files` added" - nazar-pc/CleverStyle-Framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 349760...349239 )

by Nazar

created 2016-07-06 15:41 UTC

Data_and_files::parse_multipart_analyze_parts() D

↳ Parent: Data_and_files

Complexity

Conditions	9
Paths	10

Size

Total Lines	45
Code Lines	35

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	90

Importance

Changes

Metric	Value
cc	9
eloc	35
nc	10
nop	2
dl	0
loc	45
ccs	0
cts	29
cp	0
crap	90
rs	4.909
c	0
b	0
f	0

<?php
/**
 * @package   CleverStyle Framework
 * @author    Nazar Mokrynskyi <[email protected]>
 * @copyright Copyright (c) 2016, Nazar Mokrynskyi
 * @license   MIT License, see license.txt
 */
namespace cs\Request;
use
	UnexpectedValueException,
	cs\ExitException,
	nazarpc\Stream_slicer;

trait Data_and_files {
	/**
	 * Data array, similar to `$_POST`
	 *
	 * @var array
	 */
	public $data;
	/**
	 * Normalized files array
	 *
	 * Each file item can be either single file or array of files (in contrast with native PHP arrays where each field like `name` become an array) with keys
	 * `name`, `type`, `size`, `tmp_name`, `stream` and `error`
	 *
	 * `name`, `type`, `size` and `error` keys are similar to native PHP fields in `$_FILES`; `tmp_name` might not be temporary file, but file descriptor
	 * wrapper like `request-file:///file` instead and `stream` is resource like obtained with `fopen('/tmp/xyz', 'rb')`
	 *
	 * @var array[]
	 */
	public $files;
	/**
	 * Data stream resource, similar to `fopen('php://input', 'rb')`
	 *
	 * Make sure you're controlling position in stream where you read something, if code in some other place might seek on this stream
	 *
	 * Stream is read-only
	 *
	 * @var null|resource
	 */
	public $data_stream;
	/**
	 * `$this->init_server()` assumed to be called already
	 *
	 * @param array                $data        Typically `$_POST`
	 * @param array[]              $files       Typically `$_FILES`; might be like native PHP array `$_FILES` or normalized; each file item MUST contain keys
	 *                                          `name`, `type`, `size`, `error` and at least one of `tmp_name` or `stream`
	 * @param null|resource|string $data_stream String, like `php://input` or resource, like `fopen('php://input', 'rb')` with request body, will be parsed for
	 *                                          data and files if necessary
	 * @param bool                 $copy_stream Sometimes data stream can only being read once (like most of times with `php://input`), so it is necessary to
	 *                                          copy it and store its contents for longer period of time
	 *
	 * @throws ExitException
	 */
	function init_data_and_files ($data = [], $files = [], $data_stream = null, $copy_stream = true) {
		if (is_resource($this->data_stream)) {
			fclose($this->data_stream);
		}
		$this->data        = $data;
		$this->files       = $this->normalize_files($files);
		$this->data_stream = null;
		$data_stream       = is_string($data_stream) ? fopen($data_stream, 'rb') : $data_stream;
		if (is_resource($data_stream)) {
			rewind($data_stream);
			if ($copy_stream) {
				$this->data_stream = fopen('php://temp', 'w+b');
				stream_copy_to_stream($data_stream, $this->data_stream);
				fclose($data_stream);
			} else {
				$this->data_stream = $data_stream;
			}
		}
		/**
		 * If we don't appear to have any data or files detected - probably, we need to parse request ourselves
		 */
		if (!$this->data && !$this->files && is_resource($this->data_stream)) {
			$this->parse_data_stream();
		}
		// Hack: for compatibility we'll override $_POST since it might be filled during parsing
		$_POST = $this->data;
	}
	/**
	 * Get data item by name
	 *
	 * @param string[]|string[][] $name
	 *
	 * @return mixed|mixed[]|null Data items (or associative array of data items) if exists or `null` otherwise (in case if `$name` is an array even one
	 *                             missing key will cause the whole thing to fail)
	 */
	function data (...$name) {
		if (count($name) === 1) {
			$name = $name[0];
		}
		/**
		 * @var string|string[] $name
		 */
		if (is_array($name)) {
			$result = [];
			foreach ($name as &$n) {
				if (!array_key_exists($n, $this->data)) {
					return null;
				}
				$result[$n] = $this->data[$n];
			}
			return $result;
		}
		/** @noinspection OffsetOperationsInspection */
		return @$this->data[$name];
	}
	/**
	 * Get file item by name
	 *
	 * @param string $name
	 *
	 * @return array|null File item if exists or `null` otherwise
	 */
	function files ($name) {
		return @$this->files[$name];
	}
	/**
	 * @param array[] $files
	 * @param string  $file_path
	 *
	 * @return array[]
	 */
	protected function normalize_files ($files, $file_path = '') {
		if (!isset($files['name'])) {
			foreach ($files as $field => &$file) {
				$file = $this->normalize_files($file, "$file_path/$field");
			}
			return $files;
		}
		if (is_array($files['name'])) {
			$result = [];
			foreach (array_keys($files['name']) as $index) {
				$result[] = $this->normalize_file(
					[
						'name'     => $files['name'][$index],
						'type'     => $files['type'][$index],
						'size'     => $files['size'][$index],
						'tmp_name' => @$files['tmp_name'][$index],
						'stream'   => @$files['stream'][$index],
						'error'    => $files['error'][$index]
					],
					"$file_path/$index"
				);
			}
			return $result;
		} else {
			return $this->normalize_file($files, $file_path);
		}
	}
	/**
	 * @param array  $file
	 * @param string $file_path
	 *
	 * @return array
	 */
	protected function normalize_file ($file, $file_path) {
		$file += [
			'tmp_name' => null,
			'stream'   => null
		];
		if (isset($file['tmp_name']) && $file['stream'] === null) {
			$file['stream'] = fopen($file['tmp_name'], 'rb');
		}
		if (isset($file['stream']) && !$file['tmp_name']) {
			$file['tmp_name'] = "request-file://$file_path";
		}
		if ($file['tmp_name'] === null && $file['stream'] === null) {
			$file['error'] = UPLOAD_ERR_NO_FILE;
		}
		return $file;
	}
	/**
	 * Parsing request body for following Content-Type: `application/json`, `application/x-www-form-urlencoded` and `multipart/form-data`
	 *
	 * @throws ExitException
	 */
	protected function parse_data_stream () {
		$content_type = $this->header('content-type');
		rewind($this->data_stream);
		/**
		 * application/json
		 */
		if (preg_match('#^application/([^+\s]+\+)?json#', $content_type)) {
			$this->data = _json_decode(stream_get_contents($this->data_stream)) ?: [];
			return;
		}
		/**
		 * application/x-www-form-urlencoded
		 */
		if (strpos($content_type, 'application/x-www-form-urlencoded') === 0) {
			@parse_str(stream_get_contents($this->data_stream), $this->data);
			return;
		}
		/**
		 * multipart/form-data
		 */
		if (preg_match('#multipart/form-data;.*boundary="?([^;"]{1,70})(?:"|;|$)#Ui', $content_type, $matches)) {
			try {
				$parts = $this->parse_multipart_into_parts($this->data_stream, trim($matches[1])) ?: [];
				list($this->data, $files) = $this->parse_multipart_analyze_parts($this->data_stream, $parts);
				$this->files = $this->normalize_files($files);
			} catch (UnexpectedValueException $e) {
				// Do nothing, if parsing failed then we'll just leave `::$data` and `::$files` empty
			}
		}
	}
	/**
	 * Parse content stream
	 *
	 * @param resource $stream
	 * @param string   $boundary
	 *
	 * @return array[]|false
	 *
	 * @throws UnexpectedValueException
	 * @throws ExitException
	 */
	protected function parse_multipart_into_parts ($stream, $boundary) {
		$parts    = [];
		$crlf     = "\r\n";
		$position = 0;
		$body     = '';
		list($offset, $body) = $this->parse_multipart_find($stream, $body, "--$boundary$crlf");
		/**
		 * strlen doesn't take into account trailing CRLF since we'll need it in loop below
		 */
		$position += $offset + strlen("--$boundary");
		$body = substr($body, strlen("--$boundary"));
		/**
		 * Each part always starts with CRLF
		 */
		while (strpos($body, $crlf) === 0) {
			$position += 2;
			$body = substr($body, 2);
			$part = [
				'headers' => [
					'offset' => $position,
					'size'   => 0
				],
				'body'    => [
					'offset' => 0,
					'size'   => 0
				]
			];
			if (strpos($body, $crlf) === 0) {
				/**
				 * No headers
				 */
				$position += 2;
				$body = substr($body, 2);
			} else {
				/**
				 * Find headers end in order to determine size
				 */
				list($offset, $body) = $this->parse_multipart_find($stream, $body, $crlf.$crlf);
				$part['headers']['size'] = $offset;
				$position += $offset + 4;
				$body = substr($body, 4);
			}
			$part['body']['offset'] = $position;
			/**
			 * Find body end in order to determine its size
			 */
			list($offset, $body) = $this->parse_multipart_find($stream, $body, "$crlf--$boundary");
			$part['body']['size'] = $offset;
			$position += $offset + strlen("$crlf--$boundary");
			$body = substr($body, strlen("$crlf--$boundary"));
			if ($part['headers']['size']) {
				$parts[] = $part;
			}
		}
		/**
		 * Last boundary after all parts ends with '--' and we don't care what rubbish happens after it
		 */
		$post_max_size = $this->post_max_size();
		if (0 !== strpos($body, '--')) {
			return false;
		}
		/**
		 * Check whether body size is bigger than allowed limit
		 */
		if ($position + strlen($body) > $post_max_size) {
			throw new ExitException(413);
		}
		return $parts;
	}
	/**
	 * @param resource $stream
	 * @param array[]  $parts
	 *
	 * @return array[]
	 */
	protected function parse_multipart_analyze_parts ($stream, $parts) {
		$data  = [];
		$files = [];
		foreach ($parts as $part) {
			$headers = $this->parse_multipart_headers(
				stream_get_contents($stream, $part['headers']['size'], $part['headers']['offset'])
			);
			if (
				!isset($headers['content-disposition'][0], $headers['content-disposition']['name']) ||
				$headers['content-disposition'][0] != 'form-data'
			) {
				continue;
			}
			$name = $headers['content-disposition']['name'];
			if (isset($headers['content-disposition']['filename'])) {
				$file = [
					'name'   => $headers['content-disposition']['filename'],
					'type'   => @$headers['content-type'] ?: 'application/octet-stream',
					'size'   => $part['body']['size'],
					'stream' => Stream_slicer::slice($stream, $part['body']['offset'], $part['body']['size']),
					'error'  => UPLOAD_ERR_OK
				];
				if ($headers['content-disposition']['filename'] === '') {
					$file['type']   = '';
					$file['stream'] = null;
					$file['error']  = UPLOAD_ERR_NO_FILE;
				} elseif ($file['size'] > $this->upload_max_file_size()) {
					$file['stream'] = null;
					$file['error']  = UPLOAD_ERR_INI_SIZE;
				}
				$this->parse_multipart_set_target($files, $name, $file);
			} else {
				if ($part['body']['size'] == 0) {
					$this->parse_multipart_set_target($data, $name, '');
				} else {
					$this->parse_multipart_set_target(
						$data,
						$name,
						stream_get_contents($stream, $part['body']['size'], $part['body']['offset'])
					);
				}
			}
		}
		return [$data, $files];
	}
	/**
	 * @return int
	 */
	protected function post_max_size () {
		$size = ini_get('post_max_size') ?: ini_get('hhvm.server.max_post_size');
		return $this->convert_size_to_bytes($size);
	}
	/**
	 * @return int
	 */
	protected function upload_max_file_size () {
		$size = ini_get('upload_max_filesize') ?: ini_get('hhvm.server.upload.upload_max_file_size');
		return $this->convert_size_to_bytes($size);
	}
	/**
	 * @param int|string $size
	 *
	 * @return int
	 */
	protected function convert_size_to_bytes ($size) {
		switch (strtolower(substr($size, -1))) {
			case 'g';
				$size = (int)$size * 1024;
			case 'm';
				$size = (int)$size * 1024;
			case 'k';
				$size = (int)$size * 1024;
		}
		return (int)$size ?: PHP_INT_MAX;
	}
	/**
	 * @param resource $stream
	 * @param string   $next_data
	 * @param string   $target
	 *
	 * @return array
	 *
	 * @throws UnexpectedValueException
	 */
	protected function parse_multipart_find ($stream, $next_data, $target) {
		$offset    = 0;
		$prev_data = '';
		while (($found = strpos($prev_data.$next_data, $target)) === false) {
			if (feof($stream)) {
				throw new UnexpectedValueException;
			}
			if ($prev_data) {
				$offset += strlen($prev_data);
			}
			$prev_data = $next_data;
			$next_data = fread($stream, 1024);
		}
		$offset += $found;
		/**
		 * Read some more bytes so that we'll always have some remainder in place, since empty remainder might cause problems with `strpos()` call later
		 */
		$remainder = substr($prev_data.$next_data, $found).(fread($stream, 1024) ?: '');
		return [$offset, $remainder];
	}
	/**
	 * @param string $content
	 *
	 * @return array
	 */
	protected function parse_multipart_headers ($content) {
		$headers = [];
		foreach (explode("\r\n", $content) as $header) {
			list($name, $value) = explode(':', $header, 2);
			if (!preg_match_all('/(.+)(?:="*?(.*)"?)?(?:;\s|$)/U', $value, $matches)) {
				continue;
			}
			$name           = strtolower($name);
			$headers[$name] = [];
			foreach (array_keys($matches[1]) as $index) {
				if (isset($headers[$name][0]) || strlen($matches[2][$index])) {
					$headers[$name][trim($matches[1][$index])] = urldecode(trim($matches[2][$index]));
				} else {
					$headers[$name][] = trim($matches[1][$index]);
				}
			}
			if (count($headers[$name]) == 1) {
				$headers[$name] = $headers[$name][0];
			}
		}
		return $headers;
	}
	/**
	 * @param array        $source
	 * @param string       $name
	 * @param array|string $value
	 */
	protected function parse_multipart_set_target (&$source, $name, $value) {
		preg_match_all('/(?:^|\[)([^\[\]]*)\]?/', $name, $matches);
		if ($matches[1][0] === '') {
			return;
		}
		foreach ($matches[1] as $component) {
			if (!strlen($component)) {
				$source = &$source[];
			} else {
				if (!isset($source[$component])) {
					$source[$component] = [];
				}
				$source = &$source[$component];
			}
		}
		$source = $value;
	}
}


1		<?php
2		/**
3		* @package CleverStyle Framework
4		* @author Nazar Mokrynskyi <[email protected]>
5		* @copyright Copyright (c) 2016, Nazar Mokrynskyi
6		* @license MIT License, see license.txt
7		*/
8		namespace cs\Request;
9		use
10		UnexpectedValueException,
11		cs\ExitException,
12		nazarpc\Stream_slicer;
13
14		trait Data_and_files {
15		/**
16		* Data array, similar to `$_POST`
17		*
18		* @var array
19		*/
20		public $data;
21		/**
22		* Normalized files array
23		*
24		* Each file item can be either single file or array of files (in contrast with native PHP arrays where each field like `name` become an array) with keys
25		* `name`, `type`, `size`, `tmp_name`, `stream` and `error`
26		*
27		* `name`, `type`, `size` and `error` keys are similar to native PHP fields in `$_FILES`; `tmp_name` might not be temporary file, but file descriptor
28		* wrapper like `request-file:///file` instead and `stream` is resource like obtained with `fopen('/tmp/xyz', 'rb')`
29		*
30		* @var array[]
31		*/
32		public $files;
33		/**
34		* Data stream resource, similar to `fopen('php://input', 'rb')`
35		*
36		* Make sure you're controlling position in stream where you read something, if code in some other place might seek on this stream
37		*
38		* Stream is read-only
39		*
40		* @var null\|resource
41		*/
42		public $data_stream;
43		/**
44		* `$this->init_server()` assumed to be called already
45		*
46		* @param array $data Typically `$_POST`
47		* @param array[] $files Typically `$_FILES`; might be like native PHP array `$_FILES` or normalized; each file item MUST contain keys
48		* `name`, `type`, `size`, `error` and at least one of `tmp_name` or `stream`
49		* @param null\|resource\|string $data_stream String, like `php://input` or resource, like `fopen('php://input', 'rb')` with request body, will be parsed for
50		* data and files if necessary
51		* @param bool $copy_stream Sometimes data stream can only being read once (like most of times with `php://input`), so it is necessary to
52		* copy it and store its contents for longer period of time
53		*
54		* @throws ExitException
55		*/
56	30	function init_data_and_files ($data = [], $files = [], $data_stream = null, $copy_stream = true) {
57	30	if (is_resource($this->data_stream)) {
58	4	fclose($this->data_stream);
59		}
60	30	$this->data = $data;
61	30	$this->files = $this->normalize_files($files);
62	30	$this->data_stream = null;
63	30	$data_stream = is_string($data_stream) ? fopen($data_stream, 'rb') : $data_stream;
64	30	if (is_resource($data_stream)) {
65	28	rewind($data_stream);
66	28	if ($copy_stream) {
67	28	$this->data_stream = fopen('php://temp', 'w+b');
68	28	stream_copy_to_stream($data_stream, $this->data_stream);
69	28	fclose($data_stream);
70		} else {
71	4	$this->data_stream = $data_stream;
72		}
73		}
74		/**
75		* If we don't appear to have any data or files detected - probably, we need to parse request ourselves
76		*/
77	30	if (!$this->data && !$this->files && is_resource($this->data_stream)) {
78	24	$this->parse_data_stream();
79		}
80		// Hack: for compatibility we'll override $_POST since it might be filled during parsing
81	30	$_POST = $this->data;
82	30	}
83		/**
84		* Get data item by name
85		*
86		* @param string[]\|string[][] $name
87		*
88		* @return mixed\|mixed[]\|null Data items (or associative array of data items) if exists or `null` otherwise (in case if `$name` is an array even one
89		* missing key will cause the whole thing to fail)
90		*/
91	32	function data (...$name) {
92	32	if (count($name) === 1) {
93	28	$name = $name[0];
94		}
95		/**
96		* @var string\|string[] $name
97		*/
98	32	if (is_array($name)) {
99	6	$result = [];
100	6	foreach ($name as &$n) {
101	6	if (!array_key_exists($n, $this->data)) {
102	2	return null;
103		}
104	6	$result[$n] = $this->data[$n];
105		}
106	6	return $result;
107		}
108		/** @noinspection OffsetOperationsInspection */
109	28	return @$this->data[$name];
110		}
111		/**
112		* Get file item by name
113		*
114		* @param string $name
115		*
116		* @return array\|null File item if exists or `null` otherwise
117		*/
118	2	function files ($name) {
119	2	return @$this->files[$name];
120		}
121		/**
122		* @param array[] $files
123		* @param string $file_path
124		*
125		* @return array[]
126		*/
127	30	protected function normalize_files ($files, $file_path = '') {
128	30	if (!isset($files['name'])) {
129	30	foreach ($files as $field => &$file) {
130	2	$file = $this->normalize_files($file, "$file_path/$field");
131		}
132	30	return $files;
133		}
134	2	if (is_array($files['name'])) {
135	2	$result = [];
136	2	foreach (array_keys($files['name']) as $index) {
137	2	$result[] = $this->normalize_file(
138		[
139	2	'name' => $files['name'][$index],
140	2	'type' => $files['type'][$index],
141	2	'size' => $files['size'][$index],
142	2	'tmp_name' => @$files['tmp_name'][$index],
143	2	'stream' => @$files['stream'][$index],
144	2	'error' => $files['error'][$index]
145		],
146	2	"$file_path/$index"
147		);
148		}
149	2	return $result;
150		} else {
151	2	return $this->normalize_file($files, $file_path);
152		}
153		}
154		/**
155		* @param array $file
156		* @param string $file_path
157		*
158		* @return array
159		*/
160	2	protected function normalize_file ($file, $file_path) {
161		$file += [
162	2	'tmp_name' => null,
163		'stream' => null
164		];
165	2	if (isset($file['tmp_name']) && $file['stream'] === null) {
166	2	$file['stream'] = fopen($file['tmp_name'], 'rb');
167		}
168	2	if (isset($file['stream']) && !$file['tmp_name']) {
169	2	$file['tmp_name'] = "request-file://$file_path";
170		}
171	2	if ($file['tmp_name'] === null && $file['stream'] === null) {
172	2	$file['error'] = UPLOAD_ERR_NO_FILE;
173		}
174	2	return $file;
175		}
176		/**
177		* Parsing request body for following Content-Type: `application/json`, `application/x-www-form-urlencoded` and `multipart/form-data`
178		*
179		* @throws ExitException
180		*/
181	24	protected function parse_data_stream () {
182	24	$content_type = $this->header('content-type');
183	24	rewind($this->data_stream);
184		/**
185		* application/json
186		*/
187	24	if (preg_match('#^application/([^+\s]+\+)?json#', $content_type)) {
188	2	$this->data = _json_decode(stream_get_contents($this->data_stream)) ?: [];
189	2	return;
190		}
191		/**
192		* application/x-www-form-urlencoded
193		*/
194	22	if (strpos($content_type, 'application/x-www-form-urlencoded') === 0) {
195	2	@parse_str(stream_get_contents($this->data_stream), $this->data);
196	2	return;
197		}
198		/**
199		* multipart/form-data
200		*/
201	20	if (preg_match('#multipart/form-data;.*boundary="?([^;"]{1,70})(?:"\|;\|$)#Ui', $content_type, $matches)) {
202		try {
203		$parts = $this->parse_multipart_into_parts($this->data_stream, trim($matches[1])) ?: [];
204		list($this->data, $files) = $this->parse_multipart_analyze_parts($this->data_stream, $parts);
205		$this->files = $this->normalize_files($files);
206		} catch (UnexpectedValueException $e) {
207		// Do nothing, if parsing failed then we'll just leave `::$data` and `::$files` empty
208		}
209		}
210	20	}
211		/**
212		* Parse content stream
213		*
214		* @param resource $stream
215		* @param string $boundary
216		*
217		* @return array[]\|false
218		*
219		* @throws UnexpectedValueException
220		* @throws ExitException
221		*/
222		protected function parse_multipart_into_parts ($stream, $boundary) {
223		$parts = [];
224		$crlf = "\r\n";
225		$position = 0;
226		$body = '';
227		list($offset, $body) = $this->parse_multipart_find($stream, $body, "--$boundary$crlf");
228		/**
229		* strlen doesn't take into account trailing CRLF since we'll need it in loop below
230		*/
231		$position += $offset + strlen("--$boundary");
232		$body = substr($body, strlen("--$boundary"));
233		/**
234		* Each part always starts with CRLF
235		*/
236		while (strpos($body, $crlf) === 0) {
237		$position += 2;
238		$body = substr($body, 2);
239		$part = [
240		'headers' => [
241		'offset' => $position,
242		'size' => 0
243		],
244		'body' => [
245		'offset' => 0,
246		'size' => 0
247		]
248		];
249		if (strpos($body, $crlf) === 0) {
250		/**
251		* No headers
252		*/
253		$position += 2;
254		$body = substr($body, 2);
255		} else {
256		/**
257		* Find headers end in order to determine size
258		*/
259		list($offset, $body) = $this->parse_multipart_find($stream, $body, $crlf.$crlf);
260		$part['headers']['size'] = $offset;
261		$position += $offset + 4;
262		$body = substr($body, 4);
263		}
264		$part['body']['offset'] = $position;
265		/**
266		* Find body end in order to determine its size
267		*/
268		list($offset, $body) = $this->parse_multipart_find($stream, $body, "$crlf--$boundary");
269		$part['body']['size'] = $offset;
270		$position += $offset + strlen("$crlf--$boundary");
271		$body = substr($body, strlen("$crlf--$boundary"));
272		if ($part['headers']['size']) {
273		$parts[] = $part;
274		}
275		}
276		/**
277		* Last boundary after all parts ends with '--' and we don't care what rubbish happens after it
278		*/
279		$post_max_size = $this->post_max_size();
280		if (0 !== strpos($body, '--')) {
281		return false;
282		}
283		/**
284		* Check whether body size is bigger than allowed limit
285		*/
286		if ($position + strlen($body) > $post_max_size) {
287		throw new ExitException(413);
288		}
289		return $parts;
290		}
291		/**
292		* @param resource $stream
293		* @param array[] $parts
294		*
295		* @return array[]
296		*/
297		protected function parse_multipart_analyze_parts ($stream, $parts) {
298		$data = [];
299		$files = [];
300		foreach ($parts as $part) {
301		$headers = $this->parse_multipart_headers(
302		stream_get_contents($stream, $part['headers']['size'], $part['headers']['offset'])
303		);
304		if (
305		!isset($headers['content-disposition'][0], $headers['content-disposition']['name']) \|\|
306		$headers['content-disposition'][0] != 'form-data'
307		) {
308		continue;
309		}
310		$name = $headers['content-disposition']['name'];
311		if (isset($headers['content-disposition']['filename'])) {
312		$file = [
313		'name' => $headers['content-disposition']['filename'],
314		'type' => @$headers['content-type'] ?: 'application/octet-stream',
315		'size' => $part['body']['size'],
316		'stream' => Stream_slicer::slice($stream, $part['body']['offset'], $part['body']['size']),
317		'error' => UPLOAD_ERR_OK
318		];
319		if ($headers['content-disposition']['filename'] === '') {
320		$file['type'] = '';
321		$file['stream'] = null;
322		$file['error'] = UPLOAD_ERR_NO_FILE;
323		} elseif ($file['size'] > $this->upload_max_file_size()) {
324		$file['stream'] = null;
325		$file['error'] = UPLOAD_ERR_INI_SIZE;
326		}
327		$this->parse_multipart_set_target($files, $name, $file);
328		} else {
329		if ($part['body']['size'] == 0) {
330		$this->parse_multipart_set_target($data, $name, '');
331		} else {
332		$this->parse_multipart_set_target(
333		$data,
334		$name,
335		stream_get_contents($stream, $part['body']['size'], $part['body']['offset'])
336		);
337		}
338		}
339		}
340		return [$data, $files];
341		}
342		/**
343		* @return int
344		*/
345		protected function post_max_size () {
346		$size = ini_get('post_max_size') ?: ini_get('hhvm.server.max_post_size');
347		return $this->convert_size_to_bytes($size);
348		}
349		/**
350		* @return int
351		*/
352		protected function upload_max_file_size () {
353		$size = ini_get('upload_max_filesize') ?: ini_get('hhvm.server.upload.upload_max_file_size');
354		return $this->convert_size_to_bytes($size);
355		}
356		/**
357		* @param int\|string $size
358		*
359		* @return int
360		*/
361		protected function convert_size_to_bytes ($size) {
362		switch (strtolower(substr($size, -1))) {
363		case 'g';
364		$size = (int)$size * 1024;
365		case 'm';
366		$size = (int)$size * 1024;
367		case 'k';
368		$size = (int)$size * 1024;
369		}
370		return (int)$size ?: PHP_INT_MAX;
371		}
372		/**
373		* @param resource $stream
374		* @param string $next_data
375		* @param string $target
376		*
377		* @return array
378		*
379		* @throws UnexpectedValueException
380		*/
381		protected function parse_multipart_find ($stream, $next_data, $target) {
382		$offset = 0;
383		$prev_data = '';
384		while (($found = strpos($prev_data.$next_data, $target)) === false) {
385		if (feof($stream)) {
386		throw new UnexpectedValueException;
387		}
388		if ($prev_data) {
389		$offset += strlen($prev_data);
390		}
391		$prev_data = $next_data;
392		$next_data = fread($stream, 1024);
393		}
394		$offset += $found;
395		/**
396		* Read some more bytes so that we'll always have some remainder in place, since empty remainder might cause problems with `strpos()` call later
397		*/
398		$remainder = substr($prev_data.$next_data, $found).(fread($stream, 1024) ?: '');
399		return [$offset, $remainder];
400		}
401		/**
402		* @param string $content
403		*
404		* @return array
405		*/
406		protected function parse_multipart_headers ($content) {
407		$headers = [];
408		foreach (explode("\r\n", $content) as $header) {
409		list($name, $value) = explode(':', $header, 2);
410		if (!preg_match_all('/(.+)(?:="?(.)"?)?(?:;\s\|$)/U', $value, $matches)) {
411		continue;
412		}
413		$name = strtolower($name);
414		$headers[$name] = [];
415		foreach (array_keys($matches[1]) as $index) {
416		if (isset($headers[$name][0]) \|\| strlen($matches[2][$index])) {
417		$headers[$name][trim($matches[1][$index])] = urldecode(trim($matches[2][$index]));
418		} else {
419		$headers[$name][] = trim($matches[1][$index]);
420		}
421		}
422		if (count($headers[$name]) == 1) {
423		$headers[$name] = $headers[$name][0];
424		}
425		}
426		return $headers;
427		}
428		/**
429		* @param array $source
430		* @param string $name
431		* @param array\|string $value
432		*/
433		protected function parse_multipart_set_target (&$source, $name, $value) {
434		preg_match_all('/(?:^\|\[)([^\[\]]*)\]?/', $name, $matches);
435		if ($matches[1][0] === '') {
436		return;
437		}
438		foreach ($matches[1] as $component) {
439		if (!strlen($component)) {
440		$source = &$source[];
441		} else {
442		if (!isset($source[$component])) {
443		$source[$component] = [];
444		}
445		$source = &$source[$component];
446		}
447		}
448		$source = $value;
449		}
450		}
451

nazar-pc / CleverStyle-Framework

Push — master ( 349760...349239 )

Data_and_files::parse_multipart_analyze_parts() D

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like