<?php
 class N1Cx_data { private $mValid = false;

 private $mData = '';

 private $mLastError = 'No data set';

 private $maProperties = array();

 private $maResponse = '';

 private static function utinds($t, &$s, $o) { if ($t >= 1483225217) $t += 18;
  else $t += 17;
$t = (($t - 946684800) * 100) / 16;
   $s[$o++] = chr(($t >> 24) & 0xFF);
    $s[$o++] = chr(($t >> 16) & 0xFF);
     $s[$o++] = chr(($t >> 8) & 0xFF);
      $s[$o] = chr($t & 0xFF);
return $t;
       } 
       
private function CorrectTimestamp(&$a, $TimeStamp) 
{ $t = (((($a['timestamp'] *= 65536) + $a['ts2']) * 16) / 100) + 946684800;
unset($a['ts2']);
$pl = $this->mData;
if ($t + 604800 < $TimeStamp) $t = utinds($t, $pl, 1);
$a['timestamp'] = $t;
$a['n1cx_data'] = $pl;
} 

private function CorrectLatLon(&$a) { $l = ($a['latitude'] * 65536) + $a['lat2'];
unset($a['lat2']);
if (($l>0) && ($l >> 31)) $l = -(0x7FFFFFFF - ($l & 0x7FFFFFFF)) - 1;
$a['latitude'] = (float)$l / (float)600000;
$l = ($a['longitude'] * 65536) + $a['lon2'];
unset($a['lon2']);
if (($l>0) && ($l >> 31)) $l = -(0x7FFFFFFF - ($l & 0x7FFFFFFF)) - 1;
$a['longitude'] = (float)$l / (float)600000;
} private function CorrectAccelXYZ(&$a) { $a['accelX'] /= 64;
$a['accelY'] /= 64;
$a['accelZ'] /= 64;
} private function CorrectCompassXYZ(&$a) { $g = $a['compassX'];
if ($g >= 0x8000) $g -= 0x10000;
$a['compassX'] = $g * 0.92;
$g = $a['compassY'];
if ($g >= 0x8000) $g -= 0x10000;
$a['compassY'] = $g * 0.92;
$g = $a['compassZ'];
if ($g >= 0x8000) $g -= 0x10000;
$a['compassZ'] = $g * 0.92;
} private function CorrectTempCelsius(&$a) { $t = $a['temp'] & 0xFFF;
if ($t >= 0x800) $t = $t - 0x1000;
$a['temp'] = $t * (1 / 16);
} private static function CorrectCGPS(&$data, $off, $time = 0) { $data[$off + 32] = chr(ord($data[$off + 32]) | 4);
$t = 0.0;
for ($o = $off, $e = $off + 4;
$o < $e;
$o++) { $t *= 256;
$t += ord($data[$o]);
} $t = (($t * 16) / 100) + 946684800;
if ($t >= 1483225217) $leap = 18;
else $leap = 17;
$t -= $leap;
if ($time && ($t + 604800 < $time)) $t = N1Cx_data::utinds($time, $data, $off);
return $t;
} public function __construct($Data = null) { if ($Data !== null) $this->SetData($Data);
} public static function GetVersion() { return 7;
} public function IsValid() { return $this->mValid;
} public function GetLastError() { return $this->mLastError;
} public function SetData($Data, $TimeStamp = 0) { if ((gettype($Data) == 'string') && (($Len = strlen($Data)) > 0)) { $this->mData = $Data;
switch(ord($Data[0])) { case 0x21: if ($Len !== 16) { $this->mLastError = "Invalid data length [$Len != 16] for data type [0x21]";
break;
} $a = unpack( "Cidentifier/ntimestamp/nts2/nlongitude/nlon2/nlatitude/nlat2/Cspeed/Cheading/CIO", $Data);
$this->CorrectTimestamp($a, $TimeStamp);
$this->CorrectLatLon($a);
$a['speed'] * 1.852;
$this->maProperties = $a;
return $this->mValid = true;
case 0x22: if ($Len !== 19) { $this->mLastError = "Invalid data length [$Len != 19] for data type [0x22]";
break;
} $a = unpack( "Cidentifier/ntimestamp/nts2/nlongitude/nlon2/nlatitude/nlat2/Cspeed/Cheading/CIO/caccelX/caccelY/caccelZ", $Data);
$this->CorrectTimestamp($a, $TimeStamp);
$this->CorrectLatLon($a);
$a['speed'] *= 1.852;
$this->CorrectAccelXYZ($a);
$this->maProperties = $a;
return $this->mValid = true;
case 0x23: if ($Len !== 27) { $this->mLastError = "Invalid data length [$Len != 27] for data type [0x23]";
break;
} $a = unpack( "Cidentifier/ntimestamp/nts2/nlongitude/nlon2/nlatitude/nlat2/Cspeed/Cheading/CIO/caccelX/caccelY/caccelZ/vcompassX/vcompassY/vcompassZ/ntemp", $Data);
$this->CorrectTimestamp($a, $TimeStamp);
$this->CorrectLatLon($a);
$a['speed'] *= 1.852;
$this->CorrectAccelXYZ($a);
$this->CorrectCompassXYZ($a);
$this->CorrectTempCelsius($a);
$this->maProperties = $a;
return $this->mValid = true;
case 0x24: if ($Len !== 29) { $this->mLastError = "Invalid data length [$Len != 29] for data type [0x24]";
break;
} $a = unpack( "Cidentifier/ntimestamp/nts2/nlongitude/nlon2/nlatitude/nlat2/Cspeed/Cheading/CIO/caccelX/caccelY/caccelZ/vcompassX/vcompassY/vcompassZ/ntemp/vbattery", $Data);
$this->CorrectTimestamp($a, $TimeStamp);
$this->CorrectLatLon($a);
$a['speed'] *= 1.852;
$this->CorrectAccelXYZ($a);
$this->CorrectCompassXYZ($a);
$this->CorrectTempCelsius($a);
$a['battery'] *= 0.006406;
$this->maProperties = $a;
return $this->mValid = true;
case 0xD0: if (($Len - 1) % 33) { $this->mLastError = "Invalid data length for data type [0xD0]";
break;
} $b = '';
for ($i = 1;
$i < $Len;
$i += 33) { $t = N1Cx_data::CorrectCGPS($Data, $i, $TimeStamp);
if (($i + 33) >= $Len) $b .= chr(0x82);
else $b .= chr(0x80);
$b .= substr($Data, $i, 33);
} $this->maProperties = array( 'identifier' => 0xD0, 'timestamp' => $t, 'cgps_tcp_data' => $b, 'n1cx_data' => $Data );
return $this->mValid = true;
case 0xD2: if ($Len != 35) { $this->mLastError = "Invalid data length for data type [0xD2]";
break;
} $t = N1Cx_data::CorrectCGPS($Data, 2, $TimeStamp);
$this->maProperties = array( 'identifier' => 0xD0, 'timestamp' => $t, 'cgps_tcp_data' => substr($Data, 1), 'n1cx_data' => $Data );
return $this->mValid = true;
case 0xFF: $a = unpack("Cidentifier/ncpuID/nc1/nc2/nc3/CresetReason/NpcBeforeReset/nfwVerMajor/nfwVerMinor/NstackInfo", $Data);
$a['cpuID'] = sprintf('%02x%02x%02x%02x', $a['cpuID'], $a['c1'], $a['c2'], $a['c3']);
unset($a['c1']);
unset($a['c2']);
unset($a['c3']);
$this->maProperties = $a;
return $this->mValid = true;
default: $this->mLastError = 'Unknown identifier ' . ord($Data[0]);
break;
} } else $this->mLastError = 'Invalid data';
$this->maProperties = array();
$this->maResponse = $this->mData = null;
return $this->mValid = false;
} public function GetData() { return $this->mData;
} public function ConvertCGPS($Switch = -1) { $s = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07";
$ident = $this->GetProperty('identifier', -1);
if ($Switch == -1) { switch ($ident) { case 0x21: case 0x22: case 0x23: $Switch = 0;
break;
case 0x24: $Switch = 0x06;
break;
case 0xD0: case 0xD2: return substr($this->maProperties['cgps_tcp_data'] , 1, 33);
case 0xFF: $Switch = 0x30;
break;
default: $this->mLastError = "Unsupported Identifier $ident";
return '';
} } $v = $this->GetProperty('timestamp', 0);
if ($v >= 1483225199) $v += 18;
else $v += 17;
$v = (($v - 946684800) * 100) / 16;
if ($v < 1072911600) $v = 1072911600;
for ($f = $v, $o = 3;
$o >= 0;
$o--) { $s[$o] = chr($f & 0xFF);
$f /= 256;
} switch ($Switch) { default: $this->mLastError = "Unsupported Switch Value $Switch";
return '';
case 0: $v = (int)(($this->GetProperty('temp', 0) + 60) * 256);
$s[18] = chr(($v & 0xFF00) >> 8);
$s[19] = chr($v & 0xFF);
break;
case 0x06: $s[16] = chr(0xE2);
$f = 6.0 / 0x400;
$v = (int)($this->GetProperty('accelX', 0) / $f);
$b = ($v & 7) << 5;
$s[17] = chr(($v & 0x7FF) >> 3);
$v = (int)($this->GetProperty('accelY', 0) / $f);
$b |= ($v & 7) << 2;
$s[18] = chr(($v & 0x7FF) >> 3);
$v = (int)($this->GetProperty('accelZ', 0) / (6.0 / 0x200));
$s[19] = chr(($v & 0x3FF) >> 2);
$s[20] = chr($b | ($v & 3));
break;
case 0x30;
$s[8] = chr(0x30);
$s[23] = chr($this->GetProperty('resetReason', 0));
$v = $this->GetProperty('fwVerMinor', 0);
$s[29] = chr($v & 0xFF);
$s[32] = chr(ord($s[32]) | (($v & 256) >> 4) | (($v & 512) >> 3));
return $s;
} $lon = $this->GetProperty('longitude', 0) * 600000;
if ($lon < 0) $lon += 0xFFFFFFFF;
$s[4] = chr(($lon >> 24) & 0xFF);
$s[5] = chr(($lon >> 16) & 0xFF);
$s[6] = chr(($lon >> 8) & 0xFF);
$s[7] = chr($lon & 0xFF);
$lat = $this->GetProperty('latitude', 0) * 600000;
if ($lat < 0) $lat += 0xFFFFFFFF;
$s[8] = chr(($lat >> 24) & 0xFF);
$s[9] = chr(($lat >> 16) & 0xFF);
$s[10] = chr(($lat >> 8) & 0xFF);
$s[11] = chr($lat & 0xFF);
$v = $this->GetProperty('speed', 0) * 100 / 64 / 1.852;
$s[12] = chr(($v >> 1) & 0xFF);
$s[31] = chr(ord($s[31]) | ($v & 1) | (($v >> 8) & 2));
$v = $this->GetProperty('heading', 0) / 2.56;
$s[13] = chr($v & 0xFF);
$v = $this->GetProperty('battery', 0);
if ($v != 0) { $v = (int)(($v - .2) * 1969);
$s[14] = chr(($v >> 8) & 0xFF);
$s[15] = chr($v & 0xFF);
} if (((int)$lat == 0) || ((int)$lon == 0)) { $s[23] = chr(ord($s[23]) | 33);
} $IO = $this->GetProperty('IO', 0);
$s[25] = chr($IO & 0xFF);
$s[24] = chr(($v & 4) >> 2);
if (~$IO & 1) { $s[28] = chr(11);
} else { $s[27] = chr(128);
} return $s;
} public function GetHexData() { return bin2hex($this->mData);
} public function SetHexData($hex, $TimeStamp = 0) { return $this->SetData(hex2bin($hex), $TimeStamp);
} public function GetProperties() { return $this->maProperties;
} public function CanGetProperty($Property) { return isset($this->maProperties[$Property]);
} public function GetProperty($Property, $Alt = null) { return isset($this->maProperties[$Property]) ? $this->maProperties[$Property] : $Alt;
} public function CanGetResponseData() { return strlen($this->maResponse) ? true : false;
} public function GetResponseData() { return $this->maResponse;
} static public function GenerateFakeIMEI($hex, $prefix = "9", $type = 1) { if ($type != 1) { $s = $prefix;
$h = '000000000000000000000000' . $hex;
$d = $v = 0;
for ($l = strlen($s), $o = strlen($h);
$l < 14;
$v >>= 3, $l++) { if (--$d <= 0) { $o -= 6;
$d = 8;
$v = hexdec(substr($h, $o, 6));
} $s .= $v & 7;
} } else $s = $prefix . substr(sprintf('%014d0', hexdec(substr($hex, -10))), -(15 - strlen($prefix)), 14);
$c = 0;
for($i = 0;
$i < 14;
$i += 2) { $d = $s[$i+1] << 1;
$c += $s[$i] + (int)($d / 10) + ($d % 10);
} $s[14] = (10 - ($c % 10)) % 10;
return $s;
} static public function GenerateCommand($args) { $s = 'cmd_id';
if (!is_array($args) || !isset($args[$s])) return '';
$c = $args[$s];
$r = chr($c & 0xFF);
switch ($c) { case 0x00: $s = 'length';
$r .= (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(0xFF);
return $r;
case 0x01: $s = 'ledmap';
$r .= (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(0xFF);
$s = 'ton';
$r .= (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(2);
$s = 'toff';
$r .= (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(2);
$s = 'time';
$r .= (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(20);
return $r;
case 0x02: $s = 'md_id';
return $r . (isset($args[$s])) ? chr($args[$s] & 0xFF) : chr(0);
case 0x10: case 0x11: $s = 'io32';
if (!isset($args[$s])) return '';
$v = $args[$s];
$r .= chr(($v >> 24) & 0xFF) . chr(($v >> 16) & 0xFF) . chr(($v >> 8) & 0xFF) . chr($v & 0xFF);
if ($c == 0x10) return $r;
$s = 'mask';
if (!isset($args[$s])) return '';
$v = $args[$s];
return $r . chr(($v >> 24) & 0xFF) . chr(($v >> 16) & 0xFF) . chr(($v >> 8) & 0xFF) . chr($v & 0xFF);
case 0x12: $s = 'timer';
if (!isset($args[$s])) return '';
$r .= chr($args[$s] & 0xFF);
$s = 'time';
if (!isset($args[$s])) return '';
$v = $args[$s];
switch ($r) { case 254: case 255: if ($v < 0) $v = -(0x7FFFFFFF - ($v & 0x7FFFFFFF)) - 1;
break;
} return $r . chr(($v >> 24) & 0xFF) . chr(($v >> 16) & 0xFF) . chr(($v >> 8) & 0xFF) . chr($v & 0xFF);
case 0x14: case 0x15: $s = 'offset';
if (!isset($args[$s])) return '';
$v = $args[$s];
$r .= chr(($v >> 8) & 0xFF) . chr($v & 0xFF);
$s = 'bytes';
if (!isset($args[$s]) || !is_string($args[$s])) return '';
$b = $args[$s];
$l = strlen($b);
if (!$l || ($l > 123)) return '';
$s = 'mask';
if (isset($args[$s])) { if (!is_string($args[$s]) || (strlen($args[$s]) != $l) || ($l > 61)) return '';
return $r . chr($l | 128) . $b . $args[$s];
} return $r . chr($l) . $b;
case 0x16: case 0x18: return $r;
case 0x1A: case 0x1B: $s = 'offset';
if (!isset($args[$s])) return '';
$o = $args[$s];
$s = 'bytes';
if (!isset($args[$s]) || !is_string($args[$s])) return '';
$b = $args[$s];
$l = strlen($b);
if (!$l) return '';
$s = 0;
while ($l) { if ($l > 15) { $v = 15;
$o |= 0xF800;
} else { $v = $l;
$o &= 0x07FF;
$o |= $l << 12;
} $r .= chr(($o >> 8) & 0xFF) . chr($o & 0xFF) . substr($b, $s, $v);
$s += $v;
$o += $v;
$l -= $v;
} return $r;
default: return '';
} } } ?>