<?php

class PROXY
{
	public $_url;

    public $_username;

    public $_password;

    public $_method = "GET";

    public $_timeout=8000;

    public $o_response;

	public $o_responseCode;

    public $_postData = "";

	public $_postTxtData = "";

	public $_proxy_Server="";

	public $_proxy_Port="";

	public $_proxy_auth_type="";

	public $_proxy_username="";

	public $_proxy_password="";

	public $_bypass=array();

	private $_xmlDocument;

	public function get()
	{
		$url=$this->_url;

		$ba=$this->createAuthUrl($url);

		foreach($this->_bypass as $key=>$value)
		{
			$url=str_replace($key,$value,$url);
		}

		$url=str_replace("&amp","&",$url);

		$url = urlencode($url);

		$url=str_replace("%252F","/",$url);
		$url=str_replace("%253A",":",$url);

		$url=str_replace("%20"," ",$url);
		$url=str_replace("%21","!",$url);
		$url=str_replace("%23","#",$url);
		$url=str_replace("%24","$",$url);
		$url=str_replace("%25","%",$url);
		$url=str_replace("%26","&",$url);
		$url=str_replace("%27","'",$url);
		$url=str_replace("%28","(",$url);
		$url=str_replace("%29",")",$url);

		$url=str_replace("%2A","*",$url);
		$url=str_replace("%2B","+",$url);
		$url=str_replace("%2C",",",$url);
		$url=str_replace("%2D","-",$url);
		$url=str_replace("%2E",".",$url);
		$url=str_replace("%2F","/",$url);

		$url=str_replace("%3A",":",$url);
		$url=str_replace("%3B",";",$url);
//		$url=str_replace("%3C","<",$url);
		$url=str_replace("%3D","=",$url);
//		$url=str_replace("%3E",">",$url);
		$url=str_replace("%3F","?",$url);

		$url=str_replace("%40","@",$url);


		// $url .= '&VERSION=1.0.0&RAND=0.028248802181169763&GRID_SIZE=10&INFER_CONF_MIN=0.7&INFER_CONF_MAX=1&MAP_RESOLUTION=112.5';

		// var_dump(strtolower($url));
		// die();


		$curl = curl_init($url);

		if (!empty($ba))
		{

			curl_setopt($curl, CURLOPT_USERPWD, $ba);
		}

		curl_setopt($curl, CURLOPT_MUTE, true);

		curl_setopt($curl, CURLOPT_ENCODING, 'UTF-8');

		curl_setopt($curl,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');

		curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

		curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

		curl_setopt($curl,CURLOPT_FOLLOWLOCATION,true);

		if (!empty($this->_proxy_Server)){

			curl_setopt($curl, CURLOPT_PROXY,$this->_proxy_Server);

			if (!empty($this->_proxy_Port)){
				curl_setopt($curl, CURLOPT_PROXYPORT,$this->_proxy_Port);
			}

			if (!empty($this->_proxy_auth_type)){
				curl_setopt($curl, CURLOPT_HTTPAUTH, $this->_proxy_auth_type);
			}

			if (!empty($this->_proxy_username)){
				curl_setopt($curl, CURLOPT_PROXYUSERPWD, $this->_proxy_username.':'.$this->_proxy_password);
			}
		}

		if (!empty($this->_postData))
		{
			curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/xml'));

			curl_setopt($curl, CURLOPT_POSTFIELDS, $this->_postData);
		}

		if (!empty($this->_postTxtData))
		{
			curl_setopt($curl, CURLOPT_POSTFIELDS, $this->_postTxtData);
		}

		$this->o_response = curl_exec($curl);

		$this->o_responseCode = (string)curl_getinfo($curl, CURLINFO_HTTP_CODE);


		curl_close($curl);
	}

	public function createAuthUrl($url)
	{
		$_ba = "";

		foreach($_SESSION["credentials"] as $key=>$value)
		{

			if (strpos($url,$key)!==FALSE)
			{

				$serviceUsername = $_SESSION["credentials"][$key]["username"];
				$servicePassword = $_SESSION["credentials"][$key]["password"];

				if ($serviceUsername!="")
				{
					$purl=parse_url($url);

					$_ba = $serviceUsername.":".$servicePassword;
				}

			}

			break;
		}

		return $_ba;
	}

	public function xmlNode($_xpath)
    {
		require("config.php");

		libxml_use_internal_errors(true);

		if (empty($this->_xmlDocument))
		{
			$xml=new DOMDocument();

			$xml->loadXML($this->o_response);

			$this->_xmlDocument = $xml;
		}

		$xpath = new DOMXPath($this->_xmlDocument);

        foreach($_config["NAMESPACES"] as $key=>$value)
        {
			$xpath->registerNamespace($key,$value);
        }

		$value=$xpath->evaluate($_xpath);

		if ($value->length===0)
		{
			return "";
		}

        return $value;

    }

	public function jsonNode($_xpath)
	{
		$_json = json_decode($this->o_response,true);

		$_exp = explode("/",$_xpath);

		$value = &$_json;

		foreach($_exp as $key)
		{
			$value = &$value[$key];
		}

		return $value;
	}

	public function checkUrlScheme($_url)
	{
		$uri = parse_url($_url);

		$_url = isset($uri['scheme']) ? $_url : 'http://'.$_url;

		return $_url;

	}

	public function nodeNamespace($prefix)
    {
        $xml=new DOMDocument();

		$xml->loadXML($this->o_response);

		return $xml->documentElement->lookupnamespaceURI($prefix);
	}

	public static function createUriQuery($_uri,$_query)
    {
        $uri = parse_url($_uri);

        $uriQuery =explode("&",$uri["query"]);

		$_newQuery=array();

		$_newUri[] = isset($uri['scheme']) ? $uri['scheme'] . '://' : '';

		$_newUri[] = isset($uri['host']) ? $uri['host'] : '';

		$_newUri[] = isset($uri['port']) ? ':'.$uri['port']:'';

		$_newUri[] = isset($uri['path']) ? $uri['path'] : '';

        if ($_query != null)
        {
            foreach($uriQuery as $key=>$value)
            {
                $queryVars = explode("=",$value);

                $queryVarsField = $queryVars[0];

                if (((strtolower($queryVarsField)!= "request") && (strtolower($queryVarsField)!= "service")) && (!empty($value)) && (!empty($queryVarsField)))
                {
                    $_newQuery[] = $value;
                }
            }

            foreach($_query as $key=>$value)
            {
                $_newQuery[] =$key."=".$value;

            }
        }


		$_newUri=implode("",$_newUri);

		if(count($_newQuery)>0)
		{
			$_newUri=$_newUri."?".implode("&",$_newQuery);
		}

		$_newUri=str_replace(" ","+",$_newUri);

        return $_newUri;
    }

}


?>