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authorfriendica <info@friendica.com>2012-07-18 03:59:10 -0700
committerfriendica <info@friendica.com>2012-07-18 03:59:10 -0700
commit22cf19e174bcee88b44968f2773d1bad2da2b54d (patch)
treef4e01db6f73754418438b020c2327e18c256653c /lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php
parent7a40f4354b32809af3d0cfd6e3af0eda02ab0e0a (diff)
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Diffstat (limited to 'lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php')
-rw-r--r--lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php87
1 files changed, 0 insertions, 87 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php b/lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php
deleted file mode 100644
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--- a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS.php
+++ /dev/null
@@ -1,87 +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
-{
-
- 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