diff options
author | Andrew Dolgov <[email protected]> | 2009-06-22 13:56:49 +0400 |
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committer | Andrew Dolgov <[email protected]> | 2009-06-22 13:56:49 +0400 |
commit | f45a286b8d62f710b519a98c7d4b75a0c34d5d10 (patch) | |
tree | 0c310b7b9d44e12fac1cd11e1563c4cef9b5eab2 /lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php | |
parent | 5c4461432c290ad4863fd7dc4107121db59b298c (diff) |
strip_tags_long: use htmlpurifier to properly reformat html content
Diffstat (limited to 'lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php')
-rwxr-xr-x | lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php b/lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php new file mode 100755 index 000000000..7c5c169c2 --- /dev/null +++ b/lib/htmlpurifier/library/HTMLPurifier/AttrDef/HTML/ID.php @@ -0,0 +1,70 @@ +<?php + +/** + * Validates the HTML attribute ID. + * @warning Even though this is the id processor, it + * will ignore the directive Attr:IDBlacklist, since it will only + * go according to the ID accumulator. Since the accumulator is + * automatically generated, it will have already absorbed the + * blacklist. If you're hacking around, make sure you use load()! + */ + +class HTMLPurifier_AttrDef_HTML_ID extends HTMLPurifier_AttrDef +{ + + // ref functionality disabled, since we also have to verify + // whether or not the ID it refers to exists + + public function validate($id, $config, $context) { + + if (!$config->get('Attr', 'EnableID')) return false; + + $id = trim($id); // trim it first + + if ($id === '') return false; + + $prefix = $config->get('Attr', 'IDPrefix'); + if ($prefix !== '') { + $prefix .= $config->get('Attr', 'IDPrefixLocal'); + // prevent re-appending the prefix + if (strpos($id, $prefix) !== 0) $id = $prefix . $id; + } elseif ($config->get('Attr', 'IDPrefixLocal') !== '') { + trigger_error('%Attr.IDPrefixLocal cannot be used unless '. + '%Attr.IDPrefix is set', E_USER_WARNING); + } + + //if (!$this->ref) { + $id_accumulator =& $context->get('IDAccumulator'); + if (isset($id_accumulator->ids[$id])) return false; + //} + + // we purposely avoid using regex, hopefully this is faster + + if (ctype_alpha($id)) { + $result = true; + } else { + if (!ctype_alpha(@$id[0])) return false; + $trim = trim( // primitive style of regexps, I suppose + $id, + 'A..Za..z0..9:-._' + ); + $result = ($trim === ''); + } + + $regexp = $config->get('Attr', 'IDBlacklistRegexp'); + if ($regexp && preg_match($regexp, $id)) { + return false; + } + + if (/*!$this->ref && */$result) $id_accumulator->add($id); + + // if no change was made to the ID, return the result + // else, return the new id if stripping whitespace made it + // valid, or return false. + return $result ? $id : false; + + } + +} + +// vim: et sw=4 sts=4 |