| 1 |
efrain |
1 |
<?php
|
|
|
2 |
|
|
|
3 |
/**
|
|
|
4 |
* Framework class for strings that involve multiple values.
|
|
|
5 |
*
|
|
|
6 |
* Certain CSS properties such as border-width and margin allow multiple
|
|
|
7 |
* lengths to be specified. This class can take a vanilla border-width
|
|
|
8 |
* definition and multiply it, usually into a max of four.
|
|
|
9 |
*
|
|
|
10 |
* @note Even though the CSS specification isn't clear about it, inherit
|
|
|
11 |
* can only be used alone: it will never manifest as part of a multi
|
|
|
12 |
* shorthand declaration. Thus, this class does not allow inherit.
|
|
|
13 |
*/
|
|
|
14 |
class HTMLPurifier_AttrDef_CSS_Multiple extends HTMLPurifier_AttrDef
|
|
|
15 |
{
|
|
|
16 |
/**
|
|
|
17 |
* Instance of component definition to defer validation to.
|
|
|
18 |
* @type HTMLPurifier_AttrDef
|
|
|
19 |
* @todo Make protected
|
|
|
20 |
*/
|
|
|
21 |
public $single;
|
|
|
22 |
|
|
|
23 |
/**
|
|
|
24 |
* Max number of values allowed.
|
|
|
25 |
* @todo Make protected
|
|
|
26 |
*/
|
|
|
27 |
public $max;
|
|
|
28 |
|
|
|
29 |
/**
|
|
|
30 |
* @param HTMLPurifier_AttrDef $single HTMLPurifier_AttrDef to multiply
|
|
|
31 |
* @param int $max Max number of values allowed (usually four)
|
|
|
32 |
*/
|
|
|
33 |
public function __construct($single, $max = 4)
|
|
|
34 |
{
|
|
|
35 |
$this->single = $single;
|
|
|
36 |
$this->max = $max;
|
|
|
37 |
}
|
|
|
38 |
|
|
|
39 |
/**
|
|
|
40 |
* @param string $string
|
|
|
41 |
* @param HTMLPurifier_Config $config
|
|
|
42 |
* @param HTMLPurifier_Context $context
|
|
|
43 |
* @return bool|string
|
|
|
44 |
*/
|
|
|
45 |
public function validate($string, $config, $context)
|
|
|
46 |
{
|
|
|
47 |
$string = $this->mungeRgb($this->parseCDATA($string));
|
|
|
48 |
if ($string === '') {
|
|
|
49 |
return false;
|
|
|
50 |
}
|
|
|
51 |
$parts = explode(' ', $string); // parseCDATA replaced \r, \t and \n
|
|
|
52 |
$length = count($parts);
|
|
|
53 |
$final = '';
|
|
|
54 |
for ($i = 0, $num = 0; $i < $length && $num < $this->max; $i++) {
|
|
|
55 |
if (ctype_space($parts[$i])) {
|
|
|
56 |
continue;
|
|
|
57 |
}
|
|
|
58 |
$result = $this->single->validate($parts[$i], $config, $context);
|
|
|
59 |
if ($result !== false) {
|
|
|
60 |
$final .= $result . ' ';
|
|
|
61 |
$num++;
|
|
|
62 |
}
|
|
|
63 |
}
|
|
|
64 |
if ($final === '') {
|
|
|
65 |
return false;
|
|
|
66 |
}
|
|
|
67 |
return rtrim($final);
|
|
|
68 |
}
|
|
|
69 |
}
|
|
|
70 |
|
|
|
71 |
// vim: et sw=4 sts=4
|