1: | <?php |
2: | |
3: | /** |
4: | * Validates tel (for phone numbers). |
5: | * |
6: | * The relevant specifications for this protocol are RFC 3966 and RFC 5341, |
7: | * but this class takes a much simpler approach: we normalize phone |
8: | * numbers so that they only include (possibly) a leading plus, |
9: | * and then any number of digits and x'es. |
10: | */ |
11: | |
12: | class HTMLPurifier_URIScheme_tel extends HTMLPurifier_URIScheme |
13: | { |
14: | /** |
15: | * @type bool |
16: | */ |
17: | public $browsable = false; |
18: | |
19: | /** |
20: | * @type bool |
21: | */ |
22: | public $may_omit_host = true; |
23: | |
24: | /** |
25: | * @param HTMLPurifier_URI $uri |
26: | * @param HTMLPurifier_Config $config |
27: | * @param HTMLPurifier_Context $context |
28: | * @return bool |
29: | */ |
30: | public function doValidate(&$uri, $config, $context) |
31: | { |
32: | $uri->userinfo = null; |
33: | $uri->host = null; |
34: | $uri->port = null; |
35: | |
36: | // Delete all non-numeric characters, non-x characters |
37: | // from phone number, EXCEPT for a leading plus sign. |
38: | $uri->path = preg_replace('/(?!^\+)[^\dx]/', '', |
39: | // Normalize e(x)tension to lower-case |
40: | str_replace('X', 'x', $uri->path)); |
41: | |
42: | return true; |
43: | } |
44: | } |
45: | |
46: | // vim: et sw=4 sts=4 |
47: |