PartFilter::validateArgument() - Code Metrics - Inspection of "Fix documentation" - zbateson/mail-mime-parser - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 325143...ad3faa )

by Zaahid

created 2018-07-27 04:02 UTC

PartFilter::validateArgument() A

↳ Parent: PartFilter

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	3.4578

Importance

Changes

Metric	Value
eloc	6
dl	0
loc	8
ccs	2
cts	7
cp	0.2857
rs	10
c	0
b	0
f	0
cc	2
nc	2
nop	3
crap	3.4578

<?php
/**
 * This file is part of the ZBateson\MailMimeParser project.
 *
 * @license http://opensource.org/licenses/bsd-license.php BSD
 */
namespace ZBateson\MailMimeParser\Message;

use ZBateson\MailMimeParser\Message\Part\MessagePart;
use ZBateson\MailMimeParser\Message\Part\MimePart;
use InvalidArgumentException;

/**
 * Provides a way to define a filter of MessagePart for use in various calls to
 * add/remove MessagePart.
 * 
 * A PartFilter is defined as a set of properties in the class, set to either be
 * 'included' or 'excluded'.  The filter is simplistic in that a property
 * defined as included must be set on a part for it to be passed, and an
 * excluded filter must not be set for the part to be passed.  There is no
 * provision for creating logical conditions.
 * 
 * The only property set by default is $signedpart, which defaults to
 * FILTER_EXCLUDE.
 * 
 * A PartFilter can be instantiated with an array of keys matching class
 * properties, and values to set them for convenience.
 * 
 * ```php
 * $inlineParts = $message->getAllParts(new PartFilter([
 *     'multipart' => PartFilter::FILTER_INCLUDE,
 *     'headers' => [ 
 *         FILTER_EXCLUDE => [
 *             'Content-Disposition': 'attachment'
 *         ]
 *     ]
 * ]));
 * 
 * $inlineTextPart = $message->getAllParts(PartFilter::fromInlineContentType('text/plain'));
 * ```
 *
 * @author Zaahid Bateson
 */
class PartFilter
{
    /**
     * @var int indicates a filter is not in use
     */
    const FILTER_OFF = 0;
    
    /**
     * @var int an excluded filter must not be included in a part
     */
    const FILTER_EXCLUDE = 1;
    
    /**
     * @var int an included filter must be included in a part
     */
    const FILTER_INCLUDE = 2;

    /**
     * @var int filters based on whether MessagePart::hasContent is true
     */
    private $hascontent = PartFilter::FILTER_OFF;

    /**
     * @var int filters based on whether MimePart::isMultiPart is true
     */
    private $multipart = PartFilter::FILTER_OFF;
    
    /**
     * @var int filters based on whether MessagePart::isTextPart is true
     */
    private $textpart = PartFilter::FILTER_OFF;
    
    /**
     * @var int filters based on whether the parent of a part is a
     *      multipart/signed part and this part has a content-type equal to its
     *      parent's 'protocol' parameter in its content-type header
     */
    private $signedpart = PartFilter::FILTER_EXCLUDE;
    
    /**
     * @var string calculated hash of the filter
     */
    private $hashCode;
    
    /**
     * @var string[][] array of header rules.  The top-level contains keys of
     * FILTER_INCLUDE and/or FILTER_EXCLUDE, which contain key => value mapping
     * of header names => values to search for.  Note that when searching
     * MimePart::getHeaderValue is used (so additional parameters need not be
     * matched) and strcasecmp is used.
     * 
     * ```php
     * $filter = new PartFilter();
     * $filter->headers = [ PartFilter::FILTER_INCLUDE => [ 'Content-Type' => 'text/plain' ] ];
     * ```
     */
    private $headers = [];
    
    /**
     * Convenience method to filter for a specific mime type.
     * 
     * @param string $mimeType
     * @return PartFilter
     */
    public static function fromContentType($mimeType)
    {
        return new static([
            'headers' => [
                static::FILTER_INCLUDE => [
                    'Content-Type' => $mimeType
                ]
            ]
        ]);
    }
    
    /**
     * Convenience method to look for parts of a specific mime-type, and that
     * do not specifically have a Content-Disposition equal to 'attachment'.
     * 
     * @param string $mimeType
     * @return PartFilter
     */
    public static function fromInlineContentType($mimeType)
    {
        return new static([
            'headers' => [
                static::FILTER_INCLUDE => [
                    'Content-Type' => $mimeType
                ],
                static::FILTER_EXCLUDE => [
                    'Content-Disposition' => 'attachment'
                ]
            ]
        ]);
    }
    
    /**
     * Convenience method to search for parts with a specific
     * Content-Disposition, optionally including multipart parts.
     * 
     * @param string $disposition
     * @param int $multipart
     * @return PartFilter
     */
    public static function fromDisposition($disposition, $multipart = PartFilter::FILTER_OFF)
    {
        return new static([
            'multipart' => $multipart,
            'headers' => [
                static::FILTER_INCLUDE => [
                    'Content-Disposition' => $disposition
                ]
            ]
        ]);
    }
    
    /**
     * Constructs a PartFilter, optionally instantiating member variables with
     * values in the passed array.
     * 
     * The passed array must use keys equal to member variable names, e.g.
     * 'multipart', 'textpart', 'signedpart' and 'headers'.
     * 
     * @param array $filter
     */
    public function __construct(array $filter = [])
    {
        $params = [ 'hascontent', 'multipart', 'textpart', 'signedpart', 'headers' ];
        foreach ($params as $param) {
            if (isset($filter[$param])) {
                $this->__set($param, $filter[$param]);
            }
        }
    }
    
    /**
     * Validates an argument passed to __set to insure it's set to a value in
     * $valid.
     * 
     * @param string $name Name of the member variable
     * @param string $value The value to test
     * @param array $valid an array of valid values
     * @throws InvalidArgumentException
     */
    private function validateArgument($name, $value, array $valid)
    {
        if (!in_array($value, $valid)) {
            $last = array_pop($valid);
            throw new InvalidArgumentException(
                '$value parameter for ' . $name . ' must be one of '
                . join(', ', $valid) . ' or ' . $last . ' - "' . $value
                . '" provided'
            );
        }
    }
    
    /**
     * Sets the PartFilter's headers filter to the passed array after validating
     * it.
     * 
     * @param array $headers
     * @throws InvalidArgumentException
     */
    public function setHeaders(array $headers)
    {
        array_walk($headers, function ($v, $k) {
            $this->validateArgument(
                'headers',
                $k,
                [ static::FILTER_EXCLUDE, static::FILTER_INCLUDE ]
            );
            if (!is_array($v)) {
                throw new InvalidArgumentException(
                    '$value must be an array with keys set to FILTER_EXCLUDE, '
                    . 'FILTER_INCLUDE and values set to an array of header '
                    . 'name => values'
                );
            }
        });
        $this->headers = $headers;
    }
    
    /**
     * Sets the member variable denoted by $name to the passed $value after
     * validating it.
     * 
     * @param string $name
     * @param int|array $value
     * @throws InvalidArgumentException
     */
    public function __set($name, $value)
    {
        if ($name === 'hascontent' || $name === 'multipart'
            || $name === 'textpart' || $name === 'signedpart') {
            if (is_array($value)) {
                throw new InvalidArgumentException('$value must be not be an array');
            }
            $this->validateArgument(
                $name,
                $value,
                [ static::FILTER_OFF, static::FILTER_EXCLUDE, static::FILTER_INCLUDE ]
            );
            $this->$name = $value;
        } elseif ($name === 'headers') {
            if (!is_array($value)) {
                throw new InvalidArgumentException('$value must be an array');
            }
            $this->setHeaders($value);
        }
    }
    
    /**
     * Returns true if the variable denoted by $name is a member variable of
     * PartFilter.
     * 
     * @param string $name
     * @return bool
     */
    public function __isset($name)
    {
        return isset($this->$name);
    }
    
    /**
     * Returns the value of the member variable denoted by $name
     * 
     * @param string $name
     * @return mixed
     */
    public function __get($name)
    {
        return $this->$name;
    }

    /**
     * Returns true if the passed MessagePart fails the filter's hascontent
     * filter settings.
     *
     * @param MessagePart $part
     * @return bool
     */
    private function failsHasContentFilter(MessagePart $part)
    {
        return ($this->hascontent === static::FILTER_EXCLUDE && $part->hasContent())
            || ($this->hascontent === static::FILTER_INCLUDE && !$part->hasContent());
    }
    
    /**
     * Returns true if the passed MessagePart fails the filter's multipart
     * filter settings.
     * 
     * @param MessagePart $part
     * @return bool
     */
    private function failsMultiPartFilter(MessagePart $part)
    {
        if (!($part instanceof MimePart)) {
            return $this->multipart !== static::FILTER_EXCLUDE;
        }
        return ($this->multipart === static::FILTER_EXCLUDE && $part->isMultiPart())
            || ($this->multipart === static::FILTER_INCLUDE && !$part->isMultiPart());
    }
    
    /**
     * Returns true if the passed MessagePart fails the filter's textpart filter
     * settings.
     * 
     * @param MessagePart $part
     * @return bool
     */
    private function failsTextPartFilter(MessagePart $part)
    {
        return ($this->textpart === static::FILTER_EXCLUDE && $part->isTextPart())
            || ($this->textpart === static::FILTER_INCLUDE && !$part->isTextPart());
    }
    
    /**
     * Returns true if the passed MessagePart fails the filter's signedpart
     * filter settings.
     * 
     * @param MessagePart $part
     * @return boolean
     */
    private function failsSignedPartFilter(MessagePart $part)
    {
        if ($this->signedpart === static::FILTER_OFF) {
            return false;
        } elseif (!$part->isMime() || $part->getParent() === null) {
            return ($this->signedpart === static::FILTER_INCLUDE);
        }
        $partMimeType = $part->getContentType();
        $parentMimeType = $part->getParent()->getContentType();
        $parentProtocol = $part->getParent()->getHeaderParameter('Content-Type', 'protocol');
        if (strcasecmp($parentMimeType, 'multipart/signed') === 0 && strcasecmp($partMimeType, $parentProtocol) === 0) {
            return ($this->signedpart === static::FILTER_EXCLUDE);
        }
        return ($this->signedpart === static::FILTER_INCLUDE);
    }
    
    /**
     * Tests a single header value against $part, and returns true if the test
     * fails.
     * 
     * @staticvar array $map
     * @param MessagePart $part
     * @param int $type
     * @param string $name
     * @param string $header
     * @return boolean
     */
    private function failsHeaderFor(MessagePart $part, $type, $name, $header)
    {
        $headerValue = null;
        
        static $map = [
            'content-type' => 'getContentType',
            'content-disposition' => 'getContentDisposition',
            'content-transfer-encoding' => 'getContentTransferEncoding'
        ];
        $lower = strtolower($name);
        if (isset($map[$lower])) {
            $headerValue = call_user_func([$part, $map[$lower]]);
        } elseif (!($part instanceof MimePart)) {
            return ($type === static::FILTER_INCLUDE);
        } else {
            $headerValue = $part->getHeaderValue($name);
        }
        
        return (($type === static::FILTER_EXCLUDE && strcasecmp($headerValue, $header) === 0)
            || ($type === static::FILTER_INCLUDE && strcasecmp($headerValue, $header) !== 0));
    }
    
    /**
     * Returns true if the passed MessagePart fails the filter's header filter
     * settings.
     * 
     * @param MessagePart $part
     * @return boolean
     */
    private function failsHeaderPartFilter(MessagePart $part)
    {
        foreach ($this->headers as $type => $values) {
            foreach ($values as $name => $header) {
                if ($this->failsHeaderFor($part, $type, $name, $header)) {
                    return true;
                }
            }
        }
        return false;
    }
    
    /**
     * Determines if the passed MessagePart should be filtered out or not.
     * If the MessagePart passes all filter tests, true is returned.  Otherwise
     * false is returned.
     * 
     * @param MessagePart $part
     * @return boolean
     */
    public function filter(MessagePart $part)
    {
        return !($this->failsMultiPartFilter($part)
            || $this->failsTextPartFilter($part)
            || $this->failsSignedPartFilter($part)
            || $this->failsHeaderPartFilter($part));
    }
}


1		<?php
2		/**
3		* This file is part of the ZBateson\MailMimeParser project.
4		*
5		* @license http://opensource.org/licenses/bsd-license.php BSD
6		*/
7		namespace ZBateson\MailMimeParser\Message;
8
9		use ZBateson\MailMimeParser\Message\Part\MessagePart;
10		use ZBateson\MailMimeParser\Message\Part\MimePart;
11		use InvalidArgumentException;
12
13		/**
14		* Provides a way to define a filter of MessagePart for use in various calls to
15		* add/remove MessagePart.
16		*
17		* A PartFilter is defined as a set of properties in the class, set to either be
18		* 'included' or 'excluded'. The filter is simplistic in that a property
19		* defined as included must be set on a part for it to be passed, and an
20		* excluded filter must not be set for the part to be passed. There is no
21		* provision for creating logical conditions.
22		*
23		* The only property set by default is $signedpart, which defaults to
24		* FILTER_EXCLUDE.
25		*
26		* A PartFilter can be instantiated with an array of keys matching class
27		* properties, and values to set them for convenience.
28		*
29		* ```php
30		* $inlineParts = $message->getAllParts(new PartFilter([
31		* 'multipart' => PartFilter::FILTER_INCLUDE,
32		* 'headers' => [
33		* FILTER_EXCLUDE => [
34		* 'Content-Disposition': 'attachment'
35		* ]
36		* ]
37		* ]));
38		*
39		* $inlineTextPart = $message->getAllParts(PartFilter::fromInlineContentType('text/plain'));
40		* ```
41		*
42		* @author Zaahid Bateson
43		*/
44		class PartFilter
45		{
46		/**
47		* @var int indicates a filter is not in use
48		*/
49		const FILTER_OFF = 0;
50
51		/**
52		* @var int an excluded filter must not be included in a part
53		*/
54		const FILTER_EXCLUDE = 1;
55
56		/**
57		* @var int an included filter must be included in a part
58		*/
59		const FILTER_INCLUDE = 2;
60
61		/**
62		* @var int filters based on whether MessagePart::hasContent is true
63		*/
64		private $hascontent = PartFilter::FILTER_OFF;
65
66		/**
67		* @var int filters based on whether MimePart::isMultiPart is true
68		*/
69		private $multipart = PartFilter::FILTER_OFF;
70
71		/**
72		* @var int filters based on whether MessagePart::isTextPart is true
73		*/
74		private $textpart = PartFilter::FILTER_OFF;
75
76		/**
77		* @var int filters based on whether the parent of a part is a
78		* multipart/signed part and this part has a content-type equal to its
79		* parent's 'protocol' parameter in its content-type header
80		*/
81		private $signedpart = PartFilter::FILTER_EXCLUDE;
82
83		/**
84		* @var string calculated hash of the filter
85		*/
86		private $hashCode;
87
88		/**
89		* @var string[][] array of header rules. The top-level contains keys of
90		* FILTER_INCLUDE and/or FILTER_EXCLUDE, which contain key => value mapping
91		* of header names => values to search for. Note that when searching
92		* MimePart::getHeaderValue is used (so additional parameters need not be
93		* matched) and strcasecmp is used.
94		*
95		* ```php
96		* $filter = new PartFilter();
97		* $filter->headers = [ PartFilter::FILTER_INCLUDE => [ 'Content-Type' => 'text/plain' ] ];
98		* ```
99		*/
100		private $headers = [];
101
102		/**
103		* Convenience method to filter for a specific mime type.
104		*
105		* @param string $mimeType
106		* @return PartFilter
107		*/
108	3	public static function fromContentType($mimeType)
109		{
110	3	return new static([
111		'headers' => [
112	3	static::FILTER_INCLUDE => [
113	3	'Content-Type' => $mimeType
114		]
115		]
116		]);
117		}
118
119		/**
120		* Convenience method to look for parts of a specific mime-type, and that
121		* do not specifically have a Content-Disposition equal to 'attachment'.
122		*
123		* @param string $mimeType
124		* @return PartFilter
125		*/
126	2	public static function fromInlineContentType($mimeType)
127		{
128	2	return new static([
129	2	'headers' => [
130	2	static::FILTER_INCLUDE => [
131	2	'Content-Type' => $mimeType
132		],
133	2	static::FILTER_EXCLUDE => [
134		'Content-Disposition' => 'attachment'
135		]
136		]
137		]);
138		}
139
140		/**
141		* Convenience method to search for parts with a specific
142		* Content-Disposition, optionally including multipart parts.
143		*
144		* @param string $disposition
145		* @param int $multipart
146		* @return PartFilter
147		*/
148	6	public static function fromDisposition($disposition, $multipart = PartFilter::FILTER_OFF)
149		{
150	6	return new static([
151	6	'multipart' => $multipart,
152		'headers' => [
153	6	static::FILTER_INCLUDE => [
154	6	'Content-Disposition' => $disposition
155		]
156		]
157		]);
158		}
159
160		/**
161		* Constructs a PartFilter, optionally instantiating member variables with
162		* values in the passed array.
163		*
164		* The passed array must use keys equal to member variable names, e.g.
165		* 'multipart', 'textpart', 'signedpart' and 'headers'.
166		*
167		* @param array $filter
168		*/
169	20	public function __construct(array $filter = [])
170		{
171	20	$params = [ 'hascontent', 'multipart', 'textpart', 'signedpart', 'headers' ];
172	20	foreach ($params as $param) {
173	20	if (isset($filter[$param])) {
174	20	$this->__set($param, $filter[$param]);
175		}
176		}
177	20	}
178
179		/**
180		* Validates an argument passed to __set to insure it's set to a value in
181		* $valid.
182		*
183		* @param string $name Name of the member variable
184		* @param string $value The value to test
185		* @param array $valid an array of valid values
186		* @throws InvalidArgumentException
187		*/
188	20	private function validateArgument($name, $value, array $valid)
189		{
190	20	if (!in_array($value, $valid)) {
191		$last = array_pop($valid);
192		throw new InvalidArgumentException(
193		'$value parameter for ' . $name . ' must be one of '
194		. join(', ', $valid) . ' or ' . $last . ' - "' . $value
195		. '" provided'
196		);
197		}
198	20	}
199
200		/**
201		* Sets the PartFilter's headers filter to the passed array after validating
202		* it.
203		*
204		* @param array $headers
205		* @throws InvalidArgumentException
206		*/
207		public function setHeaders(array $headers)
208		{
209	17	array_walk($headers, function ($v, $k) {
210	17	$this->validateArgument(
211	17	'headers',
212	17	$k,
213	17	[ static::FILTER_EXCLUDE, static::FILTER_INCLUDE ]
214		);
215	17	if (!is_array($v)) {
216		throw new InvalidArgumentException(
217		'$value must be an array with keys set to FILTER_EXCLUDE, '
218		. 'FILTER_INCLUDE and values set to an array of header '
219		. 'name => values'
220		);
221		}
222	17	});
223	17	$this->headers = $headers;
224	17	}
225
226		/**
227		* Sets the member variable denoted by $name to the passed $value after
228		* validating it.
229		*
230		* @param string $name
231		* @param int\|array $value
232		* @throws InvalidArgumentException
233		*/
234	20	public function __set($name, $value)
235		{
236	20	if ($name === 'hascontent' \|\| $name === 'multipart'
237	20	\|\| $name === 'textpart' \|\| $name === 'signedpart') {
238	15	if (is_array($value)) {
239		throw new InvalidArgumentException('$value must be not be an array');
240		}
241	15	$this->validateArgument(
242	15	$name,
243	15	$value,
244	15	[ static::FILTER_OFF, static::FILTER_EXCLUDE, static::FILTER_INCLUDE ]
245		);
246	15	$this->$name = $value;
247	17	} elseif ($name === 'headers') {
248	17	if (!is_array($value)) {
249		throw new InvalidArgumentException('$value must be an array');
250		}
251	17	$this->setHeaders($value);
252		}
253	20	}
254
255		/**
256		* Returns true if the variable denoted by $name is a member variable of
257		* PartFilter.
258		*
259		* @param string $name
260		* @return bool
261		*/
262		public function __isset($name)
263		{
264		return isset($this->$name);
265		}
266
267		/**
268		* Returns the value of the member variable denoted by $name
269		*
270		* @param string $name
271		* @return mixed
272		*/
273	20	public function __get($name)
274		{
275	20	return $this->$name;
276		}
277
278		/**
279		* Returns true if the passed MessagePart fails the filter's hascontent
280		* filter settings.
281		*
282		* @param MessagePart $part
283		* @return bool
284		*/
285		private function failsHasContentFilter(MessagePart $part)
286		{
287		return ($this->hascontent === static::FILTER_EXCLUDE && $part->hasContent())
288		\|\| ($this->hascontent === static::FILTER_INCLUDE && !$part->hasContent());
289		}
290
291		/**
292		* Returns true if the passed MessagePart fails the filter's multipart
293		* filter settings.
294		*
295		* @param MessagePart $part
296		* @return bool
297		*/
298	16	private function failsMultiPartFilter(MessagePart $part)
299		{
300	16	if (!($part instanceof MimePart)) {
301		return $this->multipart !== static::FILTER_EXCLUDE;
302		}
303	16	return ($this->multipart === static::FILTER_EXCLUDE && $part->isMultiPart())
304	16	\|\| ($this->multipart === static::FILTER_INCLUDE && !$part->isMultiPart());
305		}
306
307		/**
308		* Returns true if the passed MessagePart fails the filter's textpart filter
309		* settings.
310		*
311		* @param MessagePart $part
312		* @return bool
313		*/
314	16	private function failsTextPartFilter(MessagePart $part)
315		{
316	16	return ($this->textpart === static::FILTER_EXCLUDE && $part->isTextPart())
317	16	\|\| ($this->textpart === static::FILTER_INCLUDE && !$part->isTextPart());
318		}
319
320		/**
321		* Returns true if the passed MessagePart fails the filter's signedpart
322		* filter settings.
323		*
324		* @param MessagePart $part
325		* @return boolean
326		*/
327	16	private function failsSignedPartFilter(MessagePart $part)
328		{
329	16	if ($this->signedpart === static::FILTER_OFF) {
330	1	return false;
331	15	} elseif (!$part->isMime() \|\| $part->getParent() === null) {
332	15	return ($this->signedpart === static::FILTER_INCLUDE);
333		}
334	10	$partMimeType = $part->getContentType();
335	10	$parentMimeType = $part->getParent()->getContentType();
336	10	$parentProtocol = $part->getParent()->getHeaderParameter('Content-Type', 'protocol');
337	10	if (strcasecmp($parentMimeType, 'multipart/signed') === 0 && strcasecmp($partMimeType, $parentProtocol) === 0) {
338	10	return ($this->signedpart === static::FILTER_EXCLUDE);
339		}
340		return ($this->signedpart === static::FILTER_INCLUDE);
341		}
342
343		/**
344		* Tests a single header value against $part, and returns true if the test
345		* fails.
346		*
347		* @staticvar array $map
348		* @param MessagePart $part
349		* @param int $type
350		* @param string $name
351		* @param string $header
352		* @return boolean
353		*/
354	13	private function failsHeaderFor(MessagePart $part, $type, $name, $header)
355		{
356	13	$headerValue = null;
357
358	13	static $map = [
359		'content-type' => 'getContentType',
360		'content-disposition' => 'getContentDisposition',
361		'content-transfer-encoding' => 'getContentTransferEncoding'
362		];
363	13	$lower = strtolower($name);
364	13	if (isset($map[$lower])) {
365	13	$headerValue = call_user_func([$part, $map[$lower]]);
366		} elseif (!($part instanceof MimePart)) {
367		return ($type === static::FILTER_INCLUDE);
368		} else {
369		$headerValue = $part->getHeaderValue($name);
370		}
371
372	13	return (($type === static::FILTER_EXCLUDE && strcasecmp($headerValue, $header) === 0)
373	13	\|\| ($type === static::FILTER_INCLUDE && strcasecmp($headerValue, $header) !== 0));
374		}
375
376		/**
377		* Returns true if the passed MessagePart fails the filter's header filter
378		* settings.
379		*
380		* @param MessagePart $part
381		* @return boolean
382		*/
383	16	private function failsHeaderPartFilter(MessagePart $part)
384		{
385	16	foreach ($this->headers as $type => $values) {
386	13	foreach ($values as $name => $header) {
387	13	if ($this->failsHeaderFor($part, $type, $name, $header)) {
388	13	return true;
389		}
390		}
391		}
392	14	return false;
393		}
394
395		/**
396		* Determines if the passed MessagePart should be filtered out or not.
397		* If the MessagePart passes all filter tests, true is returned. Otherwise
398		* false is returned.
399		*
400		* @param MessagePart $part
401		* @return boolean
402		*/
403	16	public function filter(MessagePart $part)
404		{
405	16	return !($this->failsMultiPartFilter($part)
406	16	\|\| $this->failsTextPartFilter($part)
407	16	\|\| $this->failsSignedPartFilter($part)
408	16	\|\| $this->failsHeaderPartFilter($part));
409		}
410		}
411

zbateson / mail-mime-parser

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PartFilter::validateArgument() A

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