projects / github / wallabag / wallabag.git / blame
| Commit | Line | Data |
|---|---|---|
| d4949327 NL |
1 | <?php\r |
| 2 | \r | |
| 3 | /**\r | |
| 4 | * Validates a rel/rev link attribute against a directive of allowed values\r | |
| 5 | * @note We cannot use Enum because link types allow multiple\r | |
| 6 | * values.\r | |
| 7 | * @note Assumes link types are ASCII text\r | |
| 8 | */\r | |
| 9 | class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef\r | |
| 10 | {\r | |
| 11 | \r | |
| 12 | /**\r | |
| 13 | * Name config attribute to pull.\r | |
| 14 | * @type string\r | |
| 15 | */\r | |
| 16 | protected $name;\r | |
| 17 | \r | |
| 18 | /**\r | |
| 19 | * @param string $name\r | |
| 20 | */\r | |
| 21 | public function __construct($name)\r | |
| 22 | {\r | |
| 23 | $configLookup = array(\r | |
| 24 | 'rel' => 'AllowedRel',\r | |
| 25 | 'rev' => 'AllowedRev'\r | |
| 26 | );\r | |
| 27 | if (!isset($configLookup[$name])) {\r | |
| 28 | trigger_error(\r | |
| 29 | 'Unrecognized attribute name for link ' .\r | |
| 30 | 'relationship.',\r | |
| 31 | E_USER_ERROR\r | |
| 32 | );\r | |
| 33 | return;\r | |
| 34 | }\r | |
| 35 | $this->name = $configLookup[$name];\r | |
| 36 | }\r | |
| 37 | \r | |
| 38 | /**\r | |
| 39 | * @param string $string\r | |
| 40 | * @param HTMLPurifier_Config $config\r | |
| 41 | * @param HTMLPurifier_Context $context\r | |
| 42 | * @return bool|string\r | |
| 43 | */\r | |
| 44 | public function validate($string, $config, $context)\r | |
| 45 | {\r | |
| 46 | $allowed = $config->get('Attr.' . $this->name);\r | |
| 47 | if (empty($allowed)) {\r | |
| 48 | return false;\r | |
| 49 | }\r | |
| 50 | \r | |
| 51 | $string = $this->parseCDATA($string);\r | |
| 52 | $parts = explode(' ', $string);\r | |
| 53 | \r | |
| 54 | // lookup to prevent duplicates\r | |
| 55 | $ret_lookup = array();\r | |
| 56 | foreach ($parts as $part) {\r | |
| 57 | $part = strtolower(trim($part));\r | |
| 58 | if (!isset($allowed[$part])) {\r | |
| 59 | continue;\r | |
| 60 | }\r | |
| 61 | $ret_lookup[$part] = true;\r | |
| 62 | }\r | |
| 63 | \r | |
| 64 | if (empty($ret_lookup)) {\r | |
| 65 | return false;\r | |
| 66 | }\r | |
| 67 | $string = implode(' ', array_keys($ret_lookup));\r | |
| 68 | return $string;\r | |
| 69 | }\r | |
| 70 | }\r | |
| 71 | \r | |
| 72 | // vim: et sw=4 sts=4\r |