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Diffstat (limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Background.php')
-rw-r--r--inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Background.php111
1 files changed, 111 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Background.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Background.php
new file mode 100644
index 00000000..ecd6e276
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Background.php
@@ -0,0 +1,111 @@
1<?php
2
3/**
4 * Validates shorthand CSS property background.
5 * @warning Does not support url tokens that have internal spaces.
6 */
7class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef
8{
9
10 /**
11 * Local copy of component validators.
12 * @type HTMLPurifier_AttrDef[]
13 * @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.
14 */
15 protected $info;
16
17 /**
18 * @param HTMLPurifier_Config $config
19 */
20 public function __construct($config)
21 {
22 $def = $config->getCSSDefinition();
23 $this->info['background-color'] = $def->info['background-color'];
24 $this->info['background-image'] = $def->info['background-image'];
25 $this->info['background-repeat'] = $def->info['background-repeat'];
26 $this->info['background-attachment'] = $def->info['background-attachment'];
27 $this->info['background-position'] = $def->info['background-position'];
28 }
29
30 /**
31 * @param string $string
32 * @param HTMLPurifier_Config $config
33 * @param HTMLPurifier_Context $context
34 * @return bool|string
35 */
36 public function validate($string, $config, $context)
37 {
38 // regular pre-processing
39 $string = $this->parseCDATA($string);
40 if ($string === '') {
41 return false;
42 }
43
44 // munge rgb() decl if necessary
45 $string = $this->mungeRgb($string);
46
47 // assumes URI doesn't have spaces in it
48 $bits = explode(' ', $string); // bits to process
49
50 $caught = array();
51 $caught['color'] = false;
52 $caught['image'] = false;
53 $caught['repeat'] = false;
54 $caught['attachment'] = false;
55 $caught['position'] = false;
56
57 $i = 0; // number of catches
58
59 foreach ($bits as $bit) {
60 if ($bit === '') {
61 continue;
62 }
63 foreach ($caught as $key => $status) {
64 if ($key != 'position') {
65 if ($status !== false) {
66 continue;
67 }
68 $r = $this->info['background-' . $key]->validate($bit, $config, $context);
69 } else {
70 $r = $bit;
71 }
72 if ($r === false) {
73 continue;
74 }
75 if ($key == 'position') {
76 if ($caught[$key] === false) {
77 $caught[$key] = '';
78 }
79 $caught[$key] .= $r . ' ';
80 } else {
81 $caught[$key] = $r;
82 }
83 $i++;
84 break;
85 }
86 }
87
88 if (!$i) {
89 return false;
90 }
91 if ($caught['position'] !== false) {
92 $caught['position'] = $this->info['background-position']->
93 validate($caught['position'], $config, $context);
94 }
95
96 $ret = array();
97 foreach ($caught as $value) {
98 if ($value === false) {
99 continue;
100 }
101 $ret[] = $value;
102 }
103
104 if (empty($ret)) {
105 return false;
106 }
107 return implode(' ', $ret);
108 }
109}
110
111// vim: et sw=4 sts=4