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author | Nicolas LÅ“uillet <nicolas@loeuillet.org> | 2014-02-21 15:57:10 +0100 |
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committer | Nicolas LÅ“uillet <nicolas@loeuillet.org> | 2014-02-21 15:57:10 +0100 |
commit | 99679d06884120c57f43b44e55e03595f1f87bed (patch) | |
tree | a3f2a1aa1afdaeca1386d0c6e8a75344fd2241fb /inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php | |
parent | 655214ab30ee84884dc408488b85586f36263fcb (diff) | |
parent | d3b47e94705e17b3ba3529cbb1dc6efe69c5d2b7 (diff) | |
download | wallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.gz wallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.zst wallabag-99679d06884120c57f43b44e55e03595f1f87bed.zip |
Merge pull request #481 from wallabag/dev1.5.2
1.5.2
Diffstat (limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php')
-rw-r--r-- | inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php new file mode 100644 index 00000000..019722a4 --- /dev/null +++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Filter.php | |||
@@ -0,0 +1,77 @@ | |||
1 | <?php | ||
2 | |||
3 | /** | ||
4 | * Microsoft's proprietary filter: CSS property | ||
5 | * @note Currently supports the alpha filter. In the future, this will | ||
6 | * probably need an extensible framework | ||
7 | */ | ||
8 | class HTMLPurifier_AttrDef_CSS_Filter extends HTMLPurifier_AttrDef | ||
9 | { | ||
10 | /** | ||
11 | * @type HTMLPurifier_AttrDef_Integer | ||
12 | */ | ||
13 | protected $intValidator; | ||
14 | |||
15 | public function __construct() | ||
16 | { | ||
17 | $this->intValidator = new HTMLPurifier_AttrDef_Integer(); | ||
18 | } | ||
19 | |||
20 | /** | ||
21 | * @param string $value | ||
22 | * @param HTMLPurifier_Config $config | ||
23 | * @param HTMLPurifier_Context $context | ||
24 | * @return bool|string | ||
25 | */ | ||
26 | public function validate($value, $config, $context) | ||
27 | { | ||
28 | $value = $this->parseCDATA($value); | ||
29 | if ($value === 'none') { | ||
30 | return $value; | ||
31 | } | ||
32 | // if we looped this we could support multiple filters | ||
33 | $function_length = strcspn($value, '('); | ||
34 | $function = trim(substr($value, 0, $function_length)); | ||
35 | if ($function !== 'alpha' && | ||
36 | $function !== 'Alpha' && | ||
37 | $function !== 'progid:DXImageTransform.Microsoft.Alpha' | ||
38 | ) { | ||
39 | return false; | ||
40 | } | ||
41 | $cursor = $function_length + 1; | ||
42 | $parameters_length = strcspn($value, ')', $cursor); | ||
43 | $parameters = substr($value, $cursor, $parameters_length); | ||
44 | $params = explode(',', $parameters); | ||
45 | $ret_params = array(); | ||
46 | $lookup = array(); | ||
47 | foreach ($params as $param) { | ||
48 | list($key, $value) = explode('=', $param); | ||
49 | $key = trim($key); | ||
50 | $value = trim($value); | ||
51 | if (isset($lookup[$key])) { | ||
52 | continue; | ||
53 | } | ||
54 | if ($key !== 'opacity') { | ||
55 | continue; | ||
56 | } | ||
57 | $value = $this->intValidator->validate($value, $config, $context); | ||
58 | if ($value === false) { | ||
59 | continue; | ||
60 | } | ||
61 | $int = (int)$value; | ||
62 | if ($int > 100) { | ||
63 | $value = '100'; | ||
64 | } | ||
65 | if ($int < 0) { | ||
66 | $value = '0'; | ||
67 | } | ||
68 | $ret_params[] = "$key=$value"; | ||
69 | $lookup[$key] = true; | ||
70 | } | ||
71 | $ret_parameters = implode(',', $ret_params); | ||
72 | $ret_function = "$function($ret_parameters)"; | ||
73 | return $ret_function; | ||
74 | } | ||
75 | } | ||
76 | |||
77 | // vim: et sw=4 sts=4 | ||