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Diffstat (limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/Class.php')
-rw-r--r--inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/Class.php48
1 files changed, 48 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/Class.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/Class.php
new file mode 100644
index 00000000..b874c7e1
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/Class.php
@@ -0,0 +1,48 @@
1<?php
2
3/**
4 * Implements special behavior for class attribute (normally NMTOKENS)
5 */
6class HTMLPurifier_AttrDef_HTML_Class extends HTMLPurifier_AttrDef_HTML_Nmtokens
7{
8 /**
9 * @param string $string
10 * @param HTMLPurifier_Config $config
11 * @param HTMLPurifier_Context $context
12 * @return bool|string
13 */
14 protected function split($string, $config, $context)
15 {
16 // really, this twiddle should be lazy loaded
17 $name = $config->getDefinition('HTML')->doctype->name;
18 if ($name == "XHTML 1.1" || $name == "XHTML 2.0") {
19 return parent::split($string, $config, $context);
20 } else {
21 return preg_split('/\s+/', $string);
22 }
23 }
24
25 /**
26 * @param array $tokens
27 * @param HTMLPurifier_Config $config
28 * @param HTMLPurifier_Context $context
29 * @return array
30 */
31 protected function filter($tokens, $config, $context)
32 {
33 $allowed = $config->get('Attr.AllowedClasses');
34 $forbidden = $config->get('Attr.ForbiddenClasses');
35 $ret = array();
36 foreach ($tokens as $token) {
37 if (($allowed === null || isset($allowed[$token])) &&
38 !isset($forbidden[$token]) &&
39 // We need this O(n) check because of PHP's array
40 // implementation that casts -0 to 0.
41 !in_array($token, $ret, true)
42 ) {
43 $ret[] = $token;
44 }
45 }
46 return $ret;
47 }
48}