|
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
|
|
|
|
|
8
|
|
|
namespace ZBateson\MailMimeParser\Header\Part; |
|
9
|
|
|
|
|
10
|
|
|
use Psr\Log\LoggerInterface; |
|
11
|
|
|
use ZBateson\MbWrapper\MbWrapper; |
|
12
|
|
|
|
|
13
|
|
|
/** |
|
14
|
|
|
* Represents a single mime header part token, with the possibility of it being |
|
15
|
|
|
* MIME-Encoded as per RFC-2047. |
|
16
|
|
|
* |
|
17
|
|
|
* MimeToken automatically decodes the value if it's encoded. |
|
18
|
|
|
* |
|
19
|
|
|
* @author Zaahid Bateson |
|
20
|
|
|
*/ |
|
21
|
|
|
class MimeToken extends Token |
|
22
|
|
|
{ |
|
23
|
|
|
/** |
|
24
|
|
|
* @var string regex pattern matching a mime-encoded part |
|
25
|
|
|
*/ |
|
26
|
|
|
public const MIME_PART_PATTERN = '=\?[^?=]+\?[QBqb]\?[^\?]+\?='; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @var string regex pattern used when parsing parameterized headers |
|
30
|
|
|
*/ |
|
31
|
|
|
public const MIME_PART_PATTERN_NO_QUOTES = '=\?[^\?=]+\?[QBqb]\?[^\?"]+\?='; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* @var ?string the language code if any, or null otherwise |
|
35
|
|
|
*/ |
|
36
|
|
|
protected ?string $language = null; |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* @var ?string the charset if any, or null otherwise |
|
40
|
|
|
*/ |
|
41
|
|
|
protected ?string $charset = null; |
|
42
|
|
|
|
|
43
|
|
|
public function __construct(LoggerInterface $logger, MbWrapper $charsetConverter, string $value) |
|
44
|
|
|
{ |
|
45
|
|
|
parent::__construct($logger, $charsetConverter, $value); |
|
46
|
|
|
$this->value = $this->decodeMime(\preg_replace('/\r|\n/', '', $this->value)); |
|
47
|
|
|
$pattern = self::MIME_PART_PATTERN; |
|
48
|
|
|
$this->canIgnoreSpacesBefore = (bool) \preg_match("/^\s*{$pattern}|\s+/", $this->rawValue); |
|
49
|
|
|
$this->canIgnoreSpacesAfter = (bool) \preg_match("/{$pattern}\s*|\s+\$/", $this->rawValue); |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* Finds and replaces mime parts with their values. |
|
54
|
|
|
* |
|
55
|
|
|
* The method splits the token value into an array on mime-part-patterns, |
|
56
|
|
|
* either replacing a mime part with its value by calling iconv_mime_decode |
|
57
|
|
|
* or converts the encoding on the text part by calling convertEncoding. |
|
58
|
|
|
*/ |
|
59
|
|
|
protected function decodeMime(string $value) : string |
|
60
|
|
|
{ |
|
61
|
|
|
if (\preg_match('/^=\?([A-Za-z\-_0-9]+)\*?([A-Za-z\-_0-9]+)?\?([QBqb])\?([^\?]*)\?=$/', $value, $matches)) { |
|
62
|
|
|
return $this->decodeMatchedEntity($matches); |
|
63
|
|
|
} |
|
64
|
|
|
return $this->convertEncoding($value); |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
/** |
|
68
|
|
|
* Decodes a matched mime entity part into a string and returns it, after |
|
69
|
|
|
* adding the string into the languages array. |
|
70
|
|
|
* |
|
71
|
|
|
* @param string[] $matches |
|
72
|
|
|
*/ |
|
73
|
|
|
private function decodeMatchedEntity(array $matches) : string |
|
74
|
|
|
{ |
|
75
|
|
|
$body = $matches[4]; |
|
76
|
|
|
if (\strtoupper($matches[3]) === 'Q') { |
|
77
|
|
|
$body = \quoted_printable_decode(\str_replace('_', '=20', $body)); |
|
78
|
|
|
} else { |
|
79
|
|
|
$body = \base64_decode($body); |
|
80
|
|
|
} |
|
81
|
|
|
$this->charset = $matches[1]; |
|
82
|
|
|
$this->language = (!empty($matches[2])) ? $matches[2] : null; |
|
83
|
|
|
if ($this->charset !== null) { |
|
84
|
|
|
return $this->convertEncoding($body, $this->charset, true); |
|
85
|
|
|
} |
|
86
|
|
|
return $this->convertEncoding($body, 'ISO-8859-1', true); |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
/** |
|
90
|
|
|
* Returns the language code for the mime part. |
|
91
|
|
|
*/ |
|
92
|
|
|
public function getLanguage() : ?string |
|
93
|
|
|
{ |
|
94
|
|
|
return $this->language; |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
/** |
|
98
|
|
|
* Returns the charset for the encoded part. |
|
99
|
|
|
*/ |
|
100
|
|
|
public function getCharset() : ?string |
|
101
|
|
|
{ |
|
102
|
|
|
return $this->charset; |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
public function getRawValue() : string |
|
106
|
|
|
{ |
|
107
|
|
|
return $this->rawValue; |
|
108
|
|
|
} |
|
109
|
|
|
} |
|
110
|
|
|
|
zbateson /
mail-mime-parser
