/endpoint/grandstream/base.php

<?PHP
/**
 * Grandstream Base File
 *
 * @author Andrew Nagy
 * @license MPL / GPLv2 / LGPL
 * @package Provisioner
 */
class endpoint_grandstream_base extends endpoint_base {
	
	public $brand_name = 'grandstream';
	
	function reboot() {
            if(($this->engine == "asterisk") AND ($this->system == "unix")) {
                    exec($this->engine_location. " -rx 'sip show peers like ".$this->lines[1]['ext']."'", $output);
                    if(preg_match("/\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b/",$output[1],$matches)) {
                            $ip = $matches[0];
                            $pass = (isset($this->options['admin_pass']) ? $this->options['admin_pass'] : 'admin');
                            //This is lame. I need to do this in php not over the command line. etc, I AM THE LAME.
                            exec('curl -c cookies.txt -d"P2='.$pass.'&Login=Login&gnkey=0b82" http://'.$ip.'/dologin.htm');
                            exec("curl -b cookies.txt http://".$ip."/rs.htm");
                    }
            }
    }
	
	function create_encrypted_file($list) {
		foreach($list as $key=>$data) {
			$fp = fopen($this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/".$key, 'w');
			fwrite($fp, $data);
			fclose($fp);
			
			if(file_exists("/usr/src/GS_CFG_GEN/bin/encode.sh")) {
				exec("/usr/src/GS_CFG_GEN/bin/encode.sh ".$this->mac." ".$this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/".$this->mac.".cfg ".$this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/cfg".$this->mac);
				$handle = fopen($this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/cfg".$this->mac, 'rb');
				$contents = stream_get_contents($handle);
				fclose($handle);
				unlink($this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/cfg".$this->mac);
			} else {
				$params = $this->parse_gs_config($this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/".$key);
				$contents = $this->gs_config_out($this->mac,$params);
			}
			
			$files["cfg".$this->mac] = $contents;
			unlink($this->root_dir. self::$modules_path . $this->brand_name . "/" . $this->family_line . "/".$key);
		}
		return($files);
	}
	
	function parse_gs_config ($filename)
	{
		if (!($f = @fopen ($filename, "r"))) {
			echo ("Unable to open " . $filename . "\n");
			return FALSE;
		}

		while ($str = fgets ($f)) {
			if (($pos = strpos ($str, "#")) !== FALSE) {
				$str = substr ($str, 0, $pos);
			}
			if (strlen($str)) {
				if (preg_match ("/(.+)=(.*)/", $str, $matches)) {
					$params[trim($matches[1])] = trim($matches[2]);
				}
			}
		}
		fclose ($f);

		return $params;
	}
	function prepare_for_generateconfig() {
		//Grandstream likes lower case letters in its mac address
		$this->mac = strtolower($this->mac);
		parent::prepare_for_generateconfig();
		$this->timezone['timezone']=720+$this->timezone['gmtoffset']/60;
	}
	function generate_file($file,$extradata,$ignoredynamicmapping=FALSE) {
		$data=parent::generate_file($file,$extradata,$ignoredynamicmapping);
		if ($ignoredynamicmapping==FALSE) {
			$data = array_values($this->create_encrypted_file(array("_tmp"=>$data)));
			$data=$data[0];
		}
		return $data;
	}


	// MAC : 12 hex digits string
	// $params : array ("P01" => "something", ...)
	function gs_config_out ($mac, $params)
	{
		$prev = 0;

		//if (!preg_match ("/^[0-9a-fA-F]{12}$/", $mac))
		//	return FALSE;

		$params["gnkey"] = "0b82";
		
		$str = "";
		
		foreach ($params as $key => $val) {
			if ($prev)
				$str .= "&";
			else
				$prev = 1;

			$str .= $key . "=" . $val;
		}

		if (strlen ($str) & 1) $str .= chr(0);

		// Insert the beginning
		$new_str = chr(0) . chr(0) . chr((16+strlen ($str)) / 2 >> 8 & 0xff) . chr((16+strlen ($str)) / 2 & 0xff) . chr(0) . chr(0);

		// Insert the MAC address
		for ($i = 0; $i < 6; $i++) {
			$new_str .= chr(hexdec (substr ($mac, $i*2, 2)));
		}

		// Insert the end of the first line
		$new_str .= chr(13) . chr(10) . chr(13) . chr(10) . $str;

		// Basic checksum
		$k = 0;
		for ($i = 0; $i < strlen ($new_str) / 2; $i++) {
			$k += ord($new_str[$i*2]) << 8 & 0xff00;
			$k += ord($new_str[$i*2 + 1]) & 0xff;
			$k &= 0xffff;
		}

		$k = 0x10000 - $k;
		$new_str[4] = chr($k >> 8 & 0xff);
		$new_str[5] = chr($k & 0xff);

		return $new_str;
	}
}