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<?php
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/**
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 * Validates file as defined by RFC 1630 and RFC 1738.
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 */
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class HTMLPurifier_URIScheme_file extends HTMLPurifier_URIScheme
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{
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    /**
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     * Generally file:// URLs are not accessible from most
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     * machines, so placing them as an img src is incorrect.
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     * @type bool
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     */
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    public $browsable = false;
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    /**
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     * Basically the *only* URI scheme for which this is true, since
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     * accessing files on the local machine is very common.  In fact,
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     * browsers on some operating systems don't understand the
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     * authority, though I hear it is used on Windows to refer to
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     * network shares.
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     * @type bool
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     */
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    public $may_omit_host = true;
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    /**
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     * @param HTMLPurifier_URI $uri
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return bool
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     */
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    public function doValidate(&$uri, $config, $context)
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    {
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        // Authentication method is not supported
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        $uri->userinfo = null;
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        // file:// makes no provisions for accessing the resource
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        $uri->port = null;
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        // While it seems to work on Firefox, the querystring has
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        // no possible effect and is thus stripped.
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        $uri->query = null;
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        return true;
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    }
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}
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// vim: et sw=4 sts=4