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htmlpurifier/library/HTMLPurifier/Strategy/ValidateAttributes.php

52 lines
1.7 KiB
PHP

<?php
require_once 'HTMLPurifier/Strategy.php';
require_once 'HTMLPurifier/Definition.php';
require_once 'HTMLPurifier/IDAccumulator.php';
class HTMLPurifier_Strategy_ValidateAttributes extends HTMLPurifier_Strategy
{
var $definition;
function HTMLPurifier_Strategy_ValidateAttributes() {
$this->definition = HTMLPurifier_Definition::instance();
}
function execute($tokens) {
$accumulator = new HTMLPurifier_IDAccumulator();
$d_defs = $this->definition->info['attr']['*'];
foreach ($tokens as $key => $token) {
if ($token->type !== 'start' && $token->type !== 'end') continue;
$name = $token->name;
$attr = $token->attributes;
$defs = isset($this->definition->info['attr'][$name]) ?
$this->definition->attr[$name] : array();
$changed = false;
foreach ($attr as $attr_key => $value) {
if ( isset($defs[$attr_key]) ) {
if (!$defs[$attr_key]) {
$result = false;
} else {
$result = $defs[$attr_key]->validate($value, $accumulator);
}
} elseif ( isset($d_defs[$attr_key]) ) {
$result = $d_defs[$attr_key]->validate($value, $accumulator);
} else {
$result = false;
}
if (!$result) {
$changed = true;
unset($attr[$attr_key]);
}
}
if ($changed) {
$tokens[$key]->attributes = $attr;
}
}
return $tokens;
}
}
?>