projects / github / wallabag / wallabag.git / blame
| Commit | Line | Data |
|---|---|---|
| d4949327 NL |
1 | <?php\r |
| 2 | \r | |
| 3 | /**\r | |
| 4 | * Validates shorthand CSS property background.\r | |
| 5 | * @warning Does not support url tokens that have internal spaces.\r | |
| 6 | */\r | |
| 7 | class HTMLPurifier_AttrDef_CSS_Background extends HTMLPurifier_AttrDef\r | |
| 8 | {\r | |
| 9 | \r | |
| 10 | /**\r | |
| 11 | * Local copy of component validators.\r | |
| 12 | * @type HTMLPurifier_AttrDef[]\r | |
| 13 | * @note See HTMLPurifier_AttrDef_Font::$info for a similar impl.\r | |
| 14 | */\r | |
| 15 | protected $info;\r | |
| 16 | \r | |
| 17 | /**\r | |
| 18 | * @param HTMLPurifier_Config $config\r | |
| 19 | */\r | |
| 20 | public function __construct($config)\r | |
| 21 | {\r | |
| 22 | $def = $config->getCSSDefinition();\r | |
| 23 | $this->info['background-color'] = $def->info['background-color'];\r | |
| 24 | $this->info['background-image'] = $def->info['background-image'];\r | |
| 25 | $this->info['background-repeat'] = $def->info['background-repeat'];\r | |
| 26 | $this->info['background-attachment'] = $def->info['background-attachment'];\r | |
| 27 | $this->info['background-position'] = $def->info['background-position'];\r | |
| 28 | }\r | |
| 29 | \r | |
| 30 | /**\r | |
| 31 | * @param string $string\r | |
| 32 | * @param HTMLPurifier_Config $config\r | |
| 33 | * @param HTMLPurifier_Context $context\r | |
| 34 | * @return bool|string\r | |
| 35 | */\r | |
| 36 | public function validate($string, $config, $context)\r | |
| 37 | {\r | |
| 38 | // regular pre-processing\r | |
| 39 | $string = $this->parseCDATA($string);\r | |
| 40 | if ($string === '') {\r | |
| 41 | return false;\r | |
| 42 | }\r | |
| 43 | \r | |
| 44 | // munge rgb() decl if necessary\r | |
| 45 | $string = $this->mungeRgb($string);\r | |
| 46 | \r | |
| 47 | // assumes URI doesn't have spaces in it\r | |
| 48 | $bits = explode(' ', $string); // bits to process\r | |
| 49 | \r | |
| 50 | $caught = array();\r | |
| 51 | $caught['color'] = false;\r | |
| 52 | $caught['image'] = false;\r | |
| 53 | $caught['repeat'] = false;\r | |
| 54 | $caught['attachment'] = false;\r | |
| 55 | $caught['position'] = false;\r | |
| 56 | \r | |
| 57 | $i = 0; // number of catches\r | |
| 58 | \r | |
| 59 | foreach ($bits as $bit) {\r | |
| 60 | if ($bit === '') {\r | |
| 61 | continue;\r | |
| 62 | }\r | |
| 63 | foreach ($caught as $key => $status) {\r | |
| 64 | if ($key != 'position') {\r | |
| 65 | if ($status !== false) {\r | |
| 66 | continue;\r | |
| 67 | }\r | |
| 68 | $r = $this->info['background-' . $key]->validate($bit, $config, $context);\r | |
| 69 | } else {\r | |
| 70 | $r = $bit;\r | |
| 71 | }\r | |
| 72 | if ($r === false) {\r | |
| 73 | continue;\r | |
| 74 | }\r | |
| 75 | if ($key == 'position') {\r | |
| 76 | if ($caught[$key] === false) {\r | |
| 77 | $caught[$key] = '';\r | |
| 78 | }\r | |
| 79 | $caught[$key] .= $r . ' ';\r | |
| 80 | } else {\r | |
| 81 | $caught[$key] = $r;\r | |
| 82 | }\r | |
| 83 | $i++;\r | |
| 84 | break;\r | |
| 85 | }\r | |
| 86 | }\r | |
| 87 | \r | |
| 88 | if (!$i) {\r | |
| 89 | return false;\r | |
| 90 | }\r | |
| 91 | if ($caught['position'] !== false) {\r | |
| 92 | $caught['position'] = $this->info['background-position']->\r | |
| 93 | validate($caught['position'], $config, $context);\r | |
| 94 | }\r | |
| 95 | \r | |
| 96 | $ret = array();\r | |
| 97 | foreach ($caught as $value) {\r | |
| 98 | if ($value === false) {\r | |
| 99 | continue;\r | |
| 100 | }\r | |
| 101 | $ret[] = $value;\r | |
| 102 | }\r | |
| 103 | \r | |
| 104 | if (empty($ret)) {\r | |
| 105 | return false;\r | |
| 106 | }\r | |
| 107 | return implode(' ', $ret);\r | |
| 108 | }\r | |
| 109 | }\r | |
| 110 | \r | |
| 111 | // vim: et sw=4 sts=4\r |