diff options
Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php')
-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php deleted file mode 100644 index 02c1641fb..000000000 --- a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php +++ /dev/null @@ -1,106 +0,0 @@ -<?php - -/** - * Validates the HTML attribute style, otherwise known as CSS. - * @note We don't implement the whole CSS specification, so it might be - * difficult to reuse this component in the context of validating - * actual stylesheet declarations. - * @note If we were really serious about validating the CSS, we would - * tokenize the styles and then parse the tokens. Obviously, we - * are not doing that. Doing that could seriously harm performance, - * but would make these components a lot more viable for a CSS - * filtering solution. - */ -class HTMLPurifier_AttrDef_CSS extends HTMLPurifier_AttrDef -{ - - /** - * @param string $css - * @param HTMLPurifier_Config $config - * @param HTMLPurifier_Context $context - * @return bool|string - */ - public function validate($css, $config, $context) - { - $css = $this->parseCDATA($css); - - $definition = $config->getCSSDefinition(); - - // we're going to break the spec and explode by semicolons. - // This is because semicolon rarely appears in escaped form - // Doing this is generally flaky but fast - // IT MIGHT APPEAR IN URIs, see HTMLPurifier_AttrDef_CSSURI - // for details - - $declarations = explode(';', $css); - $propvalues = array(); - - /** - * Name of the current CSS property being validated. - */ - $property = false; - $context->register('CurrentCSSProperty', $property); - - foreach ($declarations as $declaration) { - if (!$declaration) { - continue; - } - if (!strpos($declaration, ':')) { - continue; - } - list($property, $value) = explode(':', $declaration, 2); - $property = trim($property); - $value = trim($value); - $ok = false; - do { - if (isset($definition->info[$property])) { - $ok = true; - break; - } - if (ctype_lower($property)) { - break; - } - $property = strtolower($property); - if (isset($definition->info[$property])) { - $ok = true; - break; - } - } while (0); - if (!$ok) { - continue; - } - // inefficient call, since the validator will do this again - if (strtolower(trim($value)) !== 'inherit') { - // inherit works for everything (but only on the base property) - $result = $definition->info[$property]->validate( - $value, - $config, - $context - ); - } else { - $result = 'inherit'; - } - if ($result === false) { - continue; - } - $propvalues[$property] = $result; - } - - $context->destroy('CurrentCSSProperty'); - - // procedure does not write the new CSS simultaneously, so it's - // slightly inefficient, but it's the only way of getting rid of - // duplicates. Perhaps config to optimize it, but not now. - - $new_declarations = ''; - foreach ($propvalues as $prop => $value) { - $new_declarations .= "$prop:$value;"; - } - - return $new_declarations ? $new_declarations : false; - - } - -} - -// vim: et sw=4 sts=4 |