projects / github / wallabag / wallabag.git / blame
| Commit | Line | Data |
|---|---|---|
| d4949327 NL |
1 | <?php\r |
| 2 | \r | |
| 3 | /**\r | |
| 4 | * Validates a URI as defined by RFC 3986.\r | |
| 5 | * @note Scheme-specific mechanics deferred to HTMLPurifier_URIScheme\r | |
| 6 | */\r | |
| 7 | class HTMLPurifier_AttrDef_URI extends HTMLPurifier_AttrDef\r | |
| 8 | {\r | |
| 9 | \r | |
| 10 | /**\r | |
| 11 | * @type HTMLPurifier_URIParser\r | |
| 12 | */\r | |
| 13 | protected $parser;\r | |
| 14 | \r | |
| 15 | /**\r | |
| 16 | * @type bool\r | |
| 17 | */\r | |
| 18 | protected $embedsResource;\r | |
| 19 | \r | |
| 20 | /**\r | |
| 21 | * @param bool $embeds_resource Does the URI here result in an extra HTTP request?\r | |
| 22 | */\r | |
| 23 | public function __construct($embeds_resource = false)\r | |
| 24 | {\r | |
| 25 | $this->parser = new HTMLPurifier_URIParser();\r | |
| 26 | $this->embedsResource = (bool)$embeds_resource;\r | |
| 27 | }\r | |
| 28 | \r | |
| 29 | /**\r | |
| 30 | * @param string $string\r | |
| 31 | * @return HTMLPurifier_AttrDef_URI\r | |
| 32 | */\r | |
| 33 | public function make($string)\r | |
| 34 | {\r | |
| 35 | $embeds = ($string === 'embedded');\r | |
| 36 | return new HTMLPurifier_AttrDef_URI($embeds);\r | |
| 37 | }\r | |
| 38 | \r | |
| 39 | /**\r | |
| 40 | * @param string $uri\r | |
| 41 | * @param HTMLPurifier_Config $config\r | |
| 42 | * @param HTMLPurifier_Context $context\r | |
| 43 | * @return bool|string\r | |
| 44 | */\r | |
| 45 | public function validate($uri, $config, $context)\r | |
| 46 | {\r | |
| 47 | if ($config->get('URI.Disable')) {\r | |
| 48 | return false;\r | |
| 49 | }\r | |
| 50 | \r | |
| 51 | $uri = $this->parseCDATA($uri);\r | |
| 52 | \r | |
| 53 | // parse the URI\r | |
| 54 | $uri = $this->parser->parse($uri);\r | |
| 55 | if ($uri === false) {\r | |
| 56 | return false;\r | |
| 57 | }\r | |
| 58 | \r | |
| 59 | // add embedded flag to context for validators\r | |
| 60 | $context->register('EmbeddedURI', $this->embedsResource);\r | |
| 61 | \r | |
| 62 | $ok = false;\r | |
| 63 | do {\r | |
| 64 | \r | |
| 65 | // generic validation\r | |
| 66 | $result = $uri->validate($config, $context);\r | |
| 67 | if (!$result) {\r | |
| 68 | break;\r | |
| 69 | }\r | |
| 70 | \r | |
| 71 | // chained filtering\r | |
| 72 | $uri_def = $config->getDefinition('URI');\r | |
| 73 | $result = $uri_def->filter($uri, $config, $context);\r | |
| 74 | if (!$result) {\r | |
| 75 | break;\r | |
| 76 | }\r | |
| 77 | \r | |
| 78 | // scheme-specific validation\r | |
| 79 | $scheme_obj = $uri->getSchemeObj($config, $context);\r | |
| 80 | if (!$scheme_obj) {\r | |
| 81 | break;\r | |
| 82 | }\r | |
| 83 | if ($this->embedsResource && !$scheme_obj->browsable) {\r | |
| 84 | break;\r | |
| 85 | }\r | |
| 86 | $result = $scheme_obj->validate($uri, $config, $context);\r | |
| 87 | if (!$result) {\r | |
| 88 | break;\r | |
| 89 | }\r | |
| 90 | \r | |
| 91 | // Post chained filtering\r | |
| 92 | $result = $uri_def->postFilter($uri, $config, $context);\r | |
| 93 | if (!$result) {\r | |
| 94 | break;\r | |
| 95 | }\r | |
| 96 | \r | |
| 97 | // survived gauntlet\r | |
| 98 | $ok = true;\r | |
| 99 | \r | |
| 100 | } while (false);\r | |
| 101 | \r | |
| 102 | $context->destroy('EmbeddedURI');\r | |
| 103 | if (!$ok) {\r | |
| 104 | return false;\r | |
| 105 | }\r | |
| 106 | // back to string\r | |
| 107 | return $uri->toString();\r | |
| 108 | }\r | |
| 109 | }\r | |
| 110 | \r | |
| 111 | // vim: et sw=4 sts=4\r |