File xoops_lib\modules\protector\library\HTMLPurifier\AttrDef\CSS\ListStyle.php

1:	<?php
2:
3:	/**
4:	* Validates shorthand CSS property list-style.
5:	* @warning Does not support url tokens that have internal spaces.
6:	*/
7:	class HTMLPurifier_AttrDef_CSS_ListStyle extends HTMLPurifier_AttrDef
8:	{
9:
10:	/**
11:	* Local copy of validators.
12:	* @type HTMLPurifier_AttrDef[]
13:	* @note See HTMLPurifier_AttrDef_CSS_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['list-style-type'] = $def->info['list-style-type'];
24:	$this->info['list-style-position'] = $def->info['list-style-position'];
25:	$this->info['list-style-image'] = $def->info['list-style-image'];
26:	}
27:
28:	/**
29:	* @param string $string
30:	* @param HTMLPurifier_Config $config
31:	* @param HTMLPurifier_Context $context
32:	* @return bool\|string
33:	*/
34:	public function validate($string, $config, $context)
35:	{
36:	// regular pre-processing
37:	$string = $this->parseCDATA($string);
38:	if ($string === '') {
39:	return false;
40:	}
41:
42:	// assumes URI doesn't have spaces in it
43:	$bits = explode(' ', strtolower($string)); // bits to process
44:
45:	$caught = array();
46:	$caught['type'] = false;
47:	$caught['position'] = false;
48:	$caught['image'] = false;
49:
50:	$i = 0; // number of catches
51:	$none = false;
52:
53:	foreach ($bits as $bit) {
54:	if ($i >= 3) {
55:	return;
56:	} // optimization bit
57:	if ($bit === '') {
58:	continue;
59:	}
60:	foreach ($caught as $key => $status) {
61:	if ($status !== false) {
62:	continue;
63:	}
64:	$r = $this->info['list-style-' . $key]->validate($bit, $config, $context);
65:	if ($r === false) {
66:	continue;
67:	}
68:	if ($r === 'none') {
69:	if ($none) {
70:	continue;
71:	} else {
72:	$none = true;
73:	}
74:	if ($key == 'image') {
75:	continue;
76:	}
77:	}
78:	$caught[$key] = $r;
79:	$i++;
80:	break;
81:	}
82:	}
83:
84:	if (!$i) {
85:	return false;
86:	}
87:
88:	$ret = array();
89:
90:	// construct type
91:	if ($caught['type']) {
92:	$ret[] = $caught['type'];
93:	}
94:
95:	// construct image
96:	if ($caught['image']) {
97:	$ret[] = $caught['image'];
98:	}
99:
100:	// construct position
101:	if ($caught['position']) {
102:	$ret[] = $caught['position'];
103:	}
104:
105:	if (empty($ret)) {
106:	return false;
107:	}
108:	return implode(' ', $ret);
109:	}
110:	}
111:
112:	// vim: et sw=4 sts=4
113:

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