| 1441 |
ariadna |
1 |
<?php
|
|
|
2 |
|
|
|
3 |
/**
|
|
|
4 |
* Validates a ratio as defined by the CSS spec.
|
|
|
5 |
*/
|
|
|
6 |
class HTMLPurifier_AttrDef_CSS_Ratio extends HTMLPurifier_AttrDef
|
|
|
7 |
{
|
|
|
8 |
/**
|
|
|
9 |
* @param string $ratio Ratio to validate
|
|
|
10 |
* @param HTMLPurifier_Config $config Configuration options
|
|
|
11 |
* @param HTMLPurifier_Context $context Context
|
|
|
12 |
*
|
|
|
13 |
* @return string|boolean
|
|
|
14 |
*
|
|
|
15 |
* @warning Some contexts do not pass $config, $context. These
|
|
|
16 |
* variables should not be used without checking HTMLPurifier_Length
|
|
|
17 |
*/
|
|
|
18 |
public function validate($ratio, $config, $context)
|
|
|
19 |
{
|
|
|
20 |
$ratio = $this->parseCDATA($ratio);
|
|
|
21 |
|
|
|
22 |
$parts = explode('/', $ratio, 2);
|
|
|
23 |
$length = count($parts);
|
|
|
24 |
|
|
|
25 |
if ($length < 1 || $length > 2) {
|
|
|
26 |
return false;
|
|
|
27 |
}
|
|
|
28 |
|
|
|
29 |
$num = new \HTMLPurifier_AttrDef_CSS_Number();
|
|
|
30 |
|
|
|
31 |
if ($length === 1) {
|
|
|
32 |
return $num->validate($parts[0], $config, $context);
|
|
|
33 |
}
|
|
|
34 |
|
|
|
35 |
$num1 = $num->validate($parts[0], $config, $context);
|
|
|
36 |
$num2 = $num->validate($parts[1], $config, $context);
|
|
|
37 |
|
|
|
38 |
if ($num1 === false || $num2 === false) {
|
|
|
39 |
return false;
|
|
|
40 |
}
|
|
|
41 |
|
|
|
42 |
return $num1 . '/' . $num2;
|
|
|
43 |
}
|
|
|
44 |
}
|
|
|
45 |
|
|
|
46 |
// vim: et sw=4 sts=4
|