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<?php
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/**
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 * This module contains the HTTP fetcher interface
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 *
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 * PHP versions 4 and 5
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 *
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 * LICENSE: See the COPYING file included in this distribution.
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 *
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 * @package Yadis
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 * @author JanRain, Inc. <openid@janrain.com>
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 * @copyright 2005 Janrain, Inc.
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 * @license http://www.gnu.org/copyleft/lesser.html LGPL
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 */
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class Services_Yadis_HTTPResponse {
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    function Services_Yadis_HTTPResponse($final_url = null, $status = null,
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                                         $headers = null, $body = null)
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    {
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        $this->final_url = $final_url;
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        $this->status = $status;
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        $this->headers = $headers;
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        $this->body = $body;
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    }
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}
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/**
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 * This class is the interface for HTTP fetchers the Yadis library
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 * uses.  This interface is only important if you need to write a new
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 * fetcher for some reason.
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 *
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 * @access private
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 * @package Yadis
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 */
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class Services_Yadis_HTTPFetcher {
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    var $timeout = 20; // timeout in seconds.
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    /**
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     * Return whether a URL should be allowed. Override this method to
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     * conform to your local policy.
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     *
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     * By default, will attempt to fetch any http or https URL.
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     */
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    function allowedURL($url)
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    {
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        return $this->URLHasAllowedScheme($url);
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    }
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    /**
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     * Is this an http or https URL?
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     *
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     * @access private
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     */
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    function URLHasAllowedScheme($url)
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    {
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        return (bool)preg_match('/^https?:\/\//i', $url);
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    }
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    /**
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     * @access private
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     */
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    function _findRedirect($headers)
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    {
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        foreach ($headers as $line) {
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            if (strpos($line, "Location: ") === 0) {
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                $parts = explode(" ", $line, 2);
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                return $parts[1];
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            }
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        }
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        return null;
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    }
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    /**
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     * Fetches the specified URL using optional extra headers and
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     * returns the server's response.
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     *
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     * @param string $url The URL to be fetched.
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     * @param array $extra_headers An array of header strings
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     * (e.g. "Accept: text/html").
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     * @return mixed $result An array of ($code, $url, $headers,
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     * $body) if the URL could be fetched; null if the URL does not
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     * pass the URLHasAllowedScheme check or if the server's response
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     * is malformed.
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     */
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    function get($url, $headers)
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    {
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        trigger_error("not implemented", E_USER_ERROR);
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    }
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}
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?>