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[2.0.1] Improve special case handling for <script>

- DirectLex now honors comments with greater than or less than signs in them
- Comments are transformed into script elements, ending comments are scrapped
- Buggy generator code rewritten to be more error-proof
- AttrValidator checks if token has attributes before processing
- Remove invalid documentation from Scripting
- "Commenting" of script elements switched to the more advanced version

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1189 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang
2007-06-21 14:44:26 +00:00
parent e55551ecdd
commit bf0d659c47
13 changed files with 179 additions and 32 deletions

View File

@@ -4,7 +4,7 @@ HTMLPurifier_ConfigSchema::define(
'Output', 'CommentScriptContents', true, 'bool',
'Determines whether or not HTML Purifier should attempt to fix up '.
'the contents of script tags for legacy browsers with comments. This '.
'directive was available since 1.7.'
'directive was available since 2.0.0.'
);
HTMLPurifier_ConfigSchema::defineAlias('Core', 'CommentScriptContents', 'Output', 'CommentScriptContents');
@@ -76,13 +76,17 @@ class HTMLPurifier_Generator
if (!$tokens) return '';
for ($i = 0, $size = count($tokens); $i < $size; $i++) {
if ($this->_scriptFix && $tokens[$i]->name === 'script') {
if ($this->_scriptFix && $tokens[$i]->name === 'script'
&& $i + 2 < $size && $tokens[$i+2]->type == 'end') {
// script special case
// the contents of the script block must be ONE token
// for this to work
$html .= $this->generateFromToken($tokens[$i++]);
$html .= $this->generateScriptFromToken($tokens[$i++]);
while ($tokens[$i]->name != 'script') {
$html .= $this->generateScriptFromToken($tokens[$i++]);
}
// We're not going to do this: it wouldn't be valid anyway
//while ($tokens[$i]->name != 'script') {
// $html .= $this->generateScriptFromToken($tokens[$i++]);
//}
}
$html .= $this->generateFromToken($tokens[$i]);
}
@@ -148,10 +152,12 @@ class HTMLPurifier_Generator
* --> somewhere inside the script contents.
*/
function generateScriptFromToken($token) {
if (!$token->type == 'text') return $this->generateFromToken($token);
return '<!--' . PHP_EOL . $token->data . PHP_EOL . '// -->';
if ($token->type != 'text') return $this->generateFromToken($token);
// return '<!--' . PHP_EOL . trim($token->data) . PHP_EOL . '// -->';
// more advanced version:
// return '<!--//--><![CDATA[//><!--' . PHP_EOL . $token->data . PHP_EOL . '//--><!]]>';
// thanks <http://lachy.id.au/log/2005/05/script-comments>
$data = preg_replace('#//\s*$#', '', $token->data);
return '<!--//--><![CDATA[//><!--' . PHP_EOL . trim($data) . PHP_EOL . '//--><!]]>';
}
/**