Proyectos de Subversion Moodle

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1 efrain 1 
<?php
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class HTMLPurifier_URIFilter_DisableExternal extends HTMLPurifier_URIFilter
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{
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    /**
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     * @type string
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     */
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    public $name = 'DisableExternal';
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    /**
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     * @type array
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     */
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    protected $ourHostParts = false;
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    /**
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     * @param HTMLPurifier_Config $config
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     * @return void
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     */
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    public function prepare($config)
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    {
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        $our_host = $config->getDefinition('URI')->host;
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        if ($our_host !== null) {
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            $this->ourHostParts = array_reverse(explode('.', $our_host));
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        }
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    }
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    /**
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     * @param HTMLPurifier_URI $uri Reference
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return bool
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     */
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    public function filter(&$uri, $config, $context)
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    {
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        if (is_null($uri->host)) {
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            return true;
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        }
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        if ($this->ourHostParts === false) {
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            return false;
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        }
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        $host_parts = array_reverse(explode('.', $uri->host));
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        foreach ($this->ourHostParts as $i => $x) {
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            if (!isset($host_parts[$i])) {
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                return false;
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            }
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            if ($host_parts[$i] != $this->ourHostParts[$i]) {
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                return false;
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            }
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        }
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        return true;
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    }
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}
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// vim: et sw=4 sts=4