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<?php |
<?php |
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// $Id: css.module,v 1.3.2.2 2008/12/03 18:31:46 fax8 Exp $ |
// $Id: css.module,v 1.3.2.3 2008/12/03 18:36:09 fax8 Exp $ |
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/** |
/** |
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* @file |
* @file |
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// Controls for valid input data |
// Controls for valid input data |
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case 'validate': |
case 'validate': |
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;//do some input check here.. |
// Check for potentially malicious tags |
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$pattern = '~<\s*\/?\s*(style|script|meta)\s*.*?>~i'; |
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if (preg_match($pattern, $node->css_css)) { |
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form_set_error('css_css', t('Please do not include any tags.')); |
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} |
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break; |
break; |
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// Now that the form has been properly completed, it is time to commit the new |
// Now that the form has been properly completed, it is time to commit the new |
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// filters transform user-supplied content, whereas we are extending it with |
// filters transform user-supplied content, whereas we are extending it with |
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// additional information. |
// additional information. |
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case 'view': |
case 'view': |
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theme('css_import', $node->nid); |
if($node->in_preview) { |
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// 'validate' immediately followed by 'view' means this is a preview |
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if ($node->css_css) { |
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$css = '<style type="text/css" media="all"> '. |
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css_sanitize($node->css_css, 'preview'). |
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' </style>'; |
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drupal_set_html_head($css, 'preview'); |
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} |
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} |
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else { |
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theme('css_import', $node->nid); |
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} |
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break; |
break; |
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} |
} |
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} |
} |
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$date = gmdate('D, d M Y H:i:s', $object->changed) .' GMT'; |
$date = gmdate('D, d M Y H:i:s', $object->changed) .' GMT'; |
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header("Last-Modified: $date"); |
header("Last-Modified: $date"); |
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drupal_set_header('Content-Type: text/css; charset=utf-8'); |
drupal_set_header('Content-Type: text/css; charset=utf-8'); |
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print($object->css); |
print(css_sanitize($object->css)); |
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} |
} |
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} |
} |
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} |
} |
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/** |
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* Remove harmful code from CSS. |
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*/ |
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function css_sanitize($css, $type = 'view') { |
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switch ($type) { |
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case 'view': |
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// Are there any security vulnerabilites from external CSS files? |
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break; |
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case 'preview': |
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// Catch potentially malicious code |
| 186 |
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$patterns = array( |
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'~<\s*(/?)\s*(style|script|meta)\s*>~i', |
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); |
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$css = preg_replace($patterns, '<$1FILTERED $2>', $css); |
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break; |
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default: |
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$css = ''; |
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break; |
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} |
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return $css; |
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} |
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/** |
/** |
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* Adds @import for the css in the head tag of page |
* Adds @import for the css in the head tag of page |
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* We use a theme function for this to let themers able |
* We use a theme function for this to let themers able |
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// we use $preprocess = FALSE as we don't want to cache the CSS rules. |
// we use $preprocess = FALSE as we don't want to cache the CSS rules. |
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drupal_add_css('?q=css/get/' . $nid, 'theme', 'all', FALSE); |
drupal_add_css('?q=css/get/' . $nid, 'theme', 'all', FALSE); |
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} |
} |
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