diff options
Diffstat (limited to 'vendor/symfony/translation/Symfony/Component/Translation/Loader/MoFileLoader.php')
-rw-r--r-- | vendor/symfony/translation/Symfony/Component/Translation/Loader/MoFileLoader.php | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/vendor/symfony/translation/Symfony/Component/Translation/Loader/MoFileLoader.php b/vendor/symfony/translation/Symfony/Component/Translation/Loader/MoFileLoader.php new file mode 100644 index 00000000..9d1cacb3 --- /dev/null +++ b/vendor/symfony/translation/Symfony/Component/Translation/Loader/MoFileLoader.php | |||
@@ -0,0 +1,179 @@ | |||
1 | <?php | ||
2 | |||
3 | /* | ||
4 | * This file is part of the Symfony package. | ||
5 | * | ||
6 | * (c) Fabien Potencier <fabien@symfony.com> | ||
7 | * | ||
8 | * For the full copyright and license information, please view the LICENSE | ||
9 | * file that was distributed with this source code. | ||
10 | */ | ||
11 | |||
12 | namespace Symfony\Component\Translation\Loader; | ||
13 | |||
14 | use Symfony\Component\Translation\Exception\InvalidResourceException; | ||
15 | use Symfony\Component\Translation\Exception\NotFoundResourceException; | ||
16 | use Symfony\Component\Config\Resource\FileResource; | ||
17 | |||
18 | /** | ||
19 | * @copyright Copyright (c) 2010, Union of RAD http://union-of-rad.org (http://lithify.me/) | ||
20 | */ | ||
21 | class MoFileLoader extends ArrayLoader implements LoaderInterface | ||
22 | { | ||
23 | /** | ||
24 | * Magic used for validating the format of a MO file as well as | ||
25 | * detecting if the machine used to create that file was little endian. | ||
26 | * | ||
27 | * @var float | ||
28 | */ | ||
29 | const MO_LITTLE_ENDIAN_MAGIC = 0x950412de; | ||
30 | |||
31 | /** | ||
32 | * Magic used for validating the format of a MO file as well as | ||
33 | * detecting if the machine used to create that file was big endian. | ||
34 | * | ||
35 | * @var float | ||
36 | */ | ||
37 | const MO_BIG_ENDIAN_MAGIC = 0xde120495; | ||
38 | |||
39 | /** | ||
40 | * The size of the header of a MO file in bytes. | ||
41 | * | ||
42 | * @var integer Number of bytes. | ||
43 | */ | ||
44 | const MO_HEADER_SIZE = 28; | ||
45 | |||
46 | public function load($resource, $locale, $domain = 'messages') | ||
47 | { | ||
48 | if (!stream_is_local($resource)) { | ||
49 | throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource)); | ||
50 | } | ||
51 | |||
52 | if (!file_exists($resource)) { | ||
53 | throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource)); | ||
54 | } | ||
55 | |||
56 | $messages = $this->parse($resource); | ||
57 | |||
58 | // empty file | ||
59 | if (null === $messages) { | ||
60 | $messages = array(); | ||
61 | } | ||
62 | |||
63 | // not an array | ||
64 | if (!is_array($messages)) { | ||
65 | throw new InvalidResourceException(sprintf('The file "%s" must contain a valid mo file.', $resource)); | ||
66 | } | ||
67 | |||
68 | $catalogue = parent::load($messages, $locale, $domain); | ||
69 | $catalogue->addResource(new FileResource($resource)); | ||
70 | |||
71 | return $catalogue; | ||
72 | } | ||
73 | |||
74 | /** | ||
75 | * Parses machine object (MO) format, independent of the machine's endian it | ||
76 | * was created on. Both 32bit and 64bit systems are supported. | ||
77 | * | ||
78 | * @param resource $resource | ||
79 | * | ||
80 | * @return array | ||
81 | * @throws InvalidResourceException If stream content has an invalid format. | ||
82 | */ | ||
83 | private function parse($resource) | ||
84 | { | ||
85 | $stream = fopen($resource, 'r'); | ||
86 | |||
87 | $stat = fstat($stream); | ||
88 | |||
89 | if ($stat['size'] < self::MO_HEADER_SIZE) { | ||
90 | throw new InvalidResourceException("MO stream content has an invalid format."); | ||
91 | } | ||
92 | $magic = unpack('V1', fread($stream, 4)); | ||
93 | $magic = hexdec(substr(dechex(current($magic)), -8)); | ||
94 | |||
95 | if ($magic == self::MO_LITTLE_ENDIAN_MAGIC) { | ||
96 | $isBigEndian = false; | ||
97 | } elseif ($magic == self::MO_BIG_ENDIAN_MAGIC) { | ||
98 | $isBigEndian = true; | ||
99 | } else { | ||
100 | throw new InvalidResourceException("MO stream content has an invalid format."); | ||
101 | } | ||
102 | |||
103 | $formatRevision = $this->readLong($stream, $isBigEndian); | ||
104 | $count = $this->readLong($stream, $isBigEndian); | ||
105 | $offsetId = $this->readLong($stream, $isBigEndian); | ||
106 | $offsetTranslated = $this->readLong($stream, $isBigEndian); | ||
107 | $sizeHashes = $this->readLong($stream, $isBigEndian); | ||
108 | $offsetHashes = $this->readLong($stream, $isBigEndian); | ||
109 | |||
110 | $messages = array(); | ||
111 | |||
112 | for ($i = 0; $i < $count; $i++) { | ||
113 | $singularId = $pluralId = null; | ||
114 | $translated = null; | ||
115 | |||
116 | fseek($stream, $offsetId + $i * 8); | ||
117 | |||
118 | $length = $this->readLong($stream, $isBigEndian); | ||
119 | $offset = $this->readLong($stream, $isBigEndian); | ||
120 | |||
121 | if ($length < 1) { | ||
122 | continue; | ||
123 | } | ||
124 | |||
125 | fseek($stream, $offset); | ||
126 | $singularId = fread($stream, $length); | ||
127 | |||
128 | if (strpos($singularId, "\000") !== false) { | ||
129 | list($singularId, $pluralId) = explode("\000", $singularId); | ||
130 | } | ||
131 | |||
132 | fseek($stream, $offsetTranslated + $i * 8); | ||
133 | $length = $this->readLong($stream, $isBigEndian); | ||
134 | $offset = $this->readLong($stream, $isBigEndian); | ||
135 | |||
136 | fseek($stream, $offset); | ||
137 | $translated = fread($stream, $length); | ||
138 | |||
139 | if (strpos($translated, "\000") !== false) { | ||
140 | $translated = explode("\000", $translated); | ||
141 | } | ||
142 | |||
143 | $ids = array('singular' => $singularId, 'plural' => $pluralId); | ||
144 | $item = compact('ids', 'translated'); | ||
145 | |||
146 | if (is_array($item['translated'])) { | ||
147 | $messages[$item['ids']['singular']] = stripcslashes($item['translated'][0]); | ||
148 | if (isset($item['ids']['plural'])) { | ||
149 | $plurals = array(); | ||
150 | foreach ($item['translated'] as $plural => $translated) { | ||
151 | $plurals[] = sprintf('{%d} %s', $plural, $translated); | ||
152 | } | ||
153 | $messages[$item['ids']['plural']] = stripcslashes(implode('|', $plurals)); | ||
154 | } | ||
155 | } elseif (!empty($item['ids']['singular'])) { | ||
156 | $messages[$item['ids']['singular']] = stripcslashes($item['translated']); | ||
157 | } | ||
158 | } | ||
159 | |||
160 | fclose($stream); | ||
161 | |||
162 | return array_filter($messages); | ||
163 | } | ||
164 | |||
165 | /** | ||
166 | * Reads an unsigned long from stream respecting endianess. | ||
167 | * | ||
168 | * @param resource $stream | ||
169 | * @param boolean $isBigEndian | ||
170 | * @return integer | ||
171 | */ | ||
172 | private function readLong($stream, $isBigEndian) | ||
173 | { | ||
174 | $result = unpack($isBigEndian ? 'N1' : 'V1', fread($stream, 4)); | ||
175 | $result = current($result); | ||
176 | |||
177 | return (integer) substr($result, -8); | ||
178 | } | ||
179 | } | ||