<?php
/* HTTPConnector.class.php - HTTP Connector Class - ZNCAdmin
 * Copyright (C) 2011-2012  Philipp Kreil (pk910)
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program. If not, see <http://www.gnu.org/licenses/>. 
 */

class HTTPConnector {
	private $cookies = array();
	
	public function post($host, $post) {
		$ssl = false;
		if(strtolower(substr($host, 0, 7)) == 'http://') {
			$host = substr($host, 7);
		} else if(strtolower(substr($host, 0, 8)) == 'https://') {
			$host = substr($host, 8);
			$ssl = true;
		}
		$hexp = explode('/', $host, 2);
		$pexp = explode(':', $hexp[0]);
		$host = $pexp[0];
		if(count($pexp) > 1)
			$port = $pexp[1];
		else
			$port = 80;
		$rhost = $host;
		if($ssl){
			$rhost = "ssl://".$host;
		}
		$path="/".$hexp[1];
		$data = "";
		$fp = fsockopen($rhost, $port);
        if(!$fp)
            return;
		fputs($fp, "POST $path HTTP/1.1\r\n");
		foreach($post as $key => $val) {
            if(is_array($val)) {
                foreach($val as $subval) {
                    if($data != "") { $data.="&"; }
                    $data .= $key."=".$subval;
                }
            } else {
                if($data != "") { $data.="&"; }
                $data .= $key."=".$val;
            }
		}
		fputs($fp, "Accept-Language: de-DE\r\n");
		fputs($fp, "Content-Type: application/x-www-form-urlencoded\r\n");
		fputs($fp, "Accept-Encoding: deflate\r\n");
		fputs($fp, "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2)\r\n");
		fputs($fp, "Host: ".$host."\r\n");
		foreach($this->cookies as $cookiename => $cookievalue) {
			fputs($fp, "Cookie: ".$cookiename."=".$cookievalue."\r\n");
		}
		fputs($fp, "Content-Length: ".strlen($data)."\r\n");
		fputs($fp, "Connection: Keep-Alive\r\n");
		fputs($fp, "Cache-Control: no-cache\r\n");
		fputs($fp, "\r\n");
		fputs($fp, $data);
        $res = "";
		while(!feof($fp)) {
			$res .= fread($fp, 256);
		}
		$exp = explode("\n", str_replace("\r", "", $res));
		for($i=0;$i<count($exp);$i++) {
			$expb = explode(" ",$exp[$i],2);
			if($expb[0] == "Set-Cookie:") {
				$cookie = explode("=", $expb[1], 2);
				$cookieval = explode(";", $cookie[1]);
				$this->cookies[$cookie[0]] = $cookieval[0];
			} else if($exp[$i] == "") {
				break;
			}
		}
		fclose($fp);
		return $res;
	}
	
	public function get($host) {
		$ssl = false;
		if(strtolower(substr($host, 0, 7)) == 'http://') {
			$host = substr($host, 7);
		} else if(strtolower(substr($host, 0, 8)) == 'https://') {
			$host = substr($host, 8);
			$ssl = true;
		}
		$hexp = explode('/', $host, 2);
		$pexp = explode(':', $hexp[0]);
		$host = $pexp[0];
		if(count($pexp) > 1)
			$port = $pexp[1];
		else
			$port = 80;
		$rhost = $host;
		if($ssl){
			$rhost = "ssl://".$host;
		}
		$path="/".$hexp[1];
		$fp = fsockopen($rhost, $port);
        if(!$fp)
            return;
		fputs($fp, "GET $path HTTP/1.1\r\n");
		fputs($fp, "Accept-Language: de-DE\r\n");
		fputs($fp, "Accept-Encoding: deflate\r\n");
		fputs($fp, "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2)\r\n");
		fputs($fp, "Host: ".$host."\r\n");
		foreach($this->cookies as $cookiename => $cookievalue) {
			fputs($fp, "Cookie: ".$cookiename."=".$cookievalue."\r\n");
		}
		fputs($fp, "Connection: Keep-Alive\r\n");
		fputs($fp, "Cache-Control: no-cache\r\n");
		fputs($fp, "\r\n");
        $res = "";
		while(!feof($fp)) {
			$res .= fread($fp, 256);
		}
		$exp = explode("\n", str_replace("\r", "", $res));
		for($i=0;$i<count($exp);$i++) {
			$expb = explode(" ",$exp[$i],2);
			if($expb[0] == "Set-Cookie:") {
				$cookie = explode("=", $expb[1], 2);
				$cookieval = explode(";", $cookie[1]);
				$this->cookies[$cookie[0]] = $cookieval[0];
			} else if($exp[$i] == "") {
				break;
			}
		}
		fclose($fp);
		return $res;
	}
	
	
}

?>