<?php

class HTTP_query
{
    static public $headers = array(
        'User-Agent' => 'Opera/9.80 (X11; Linux i686; U; fr) Presto/2.2.15 Version/10.10',
        'Accept-Language' => 'fr',
    );

    static public $max_redirects = 2;

    static public $timeout = 5;

    static public function query($method='GET', $url, $cookies=array(), $content=array())
    {
        $headers = self::$headers;
        $data = '';

        if ($method == 'POST')
        {
            if (isset($content['json']))
            {
                $data = json_encode($content['json']);
                $headers['Content-Length'] = strlen($data);
                $headers['Content-Type'] = 'application/json; charset=UTF-8';
            }
            else
            {
                $data = http_build_query($content, null, '&');
                $headers['Content-Length'] = strlen($data);
                $headers['Content-Type'] = 'application/x-www-form-urlencoded';
            }
        }

        if (!empty($cookies))
        {
            $headers['Cookie'] = '';

            foreach ($cookies as $key=>$value)
            {
                if (!empty($headers['Cookie'])) $headers['Cookie'] .= '; ';
                $headers['Cookie'] .= $key . '=' . $value;
            }
        }

        $request = '';

        foreach ($headers as $key=>$value)
        {
            $request .= $key . ': ' . $value . "\r\n";
        }

        $context = stream_context_create(
            array(
                'http'  =>  array(
                    'method'    =>  $method,
                    'timeout'   =>  self::$timeout,
                    'header'    =>  $request,
                    'content'   =>  $data,
                    'max_redirects' =>  self::$max_redirects,
                )
            )
        );

        unset($headers, $request, $content);

        $body = @file_get_contents($url, false, $context);

        if ($body === false)
            return false;

        $headers = array();

        foreach ($http_response_header as $line)
        {
            if (preg_match('!^([a-z0-9_-]+): (.*)$!i', $line, $match))
            {
                $key = $match[1];

                if (strtolower($key) == 'set-cookie' && preg_match('!^([^=]+)=([^;]*)!', $match[2], $c_match))
                {
                    if (!array_key_exists('_cookies', $headers))
                    {
                        $headers['_cookies'] = array();
                    }

                    $headers['_cookies'][$c_match[1]] = urldecode($c_match[2]);
                }

                if (array_key_exists($key, $headers))
                {
                    if (!is_array($headers[$key]))
                    {
                        $headers[$key] = array($headers[$key]);
                    }

                    $headers[$key][] = $match[2];
                }
                else
                {
                    $headers[$key] = $match[2];
                }
            }
            else
            {
                if (preg_match('!^HTTP/1\.[01] ([0-9]{3}) !', $line, $match))
                {
                    $headers['_code'] = $match[1];
                }

                $headers[] = $line;
            }
        }

        return array($headers, $body);
    }
}

?>