Ysurac / FlightAirMap

require/class.AIS.php

Braces +202 added lines, -78 removed lines

@@ -123,7 +123,9 @@ 
 			$temp += 1;
 			$flat = (float)($temp / (60.0 * 10000.0));
 			$flat *= -1.0;
-		} else $flat = (float)($temp / (60.0 * 10000.0));
+		} else {
+			$flat = (float)($temp / (60.0 * 10000.0));
+		}
 		return $flat; // float
 	}
 
@@ -135,7 +137,9 @@ 
 			$temp += 1;
 			$flon = (float)($temp / (60.0 * 10000.0));
 			$flon *= -1.0;
-		} else $flon = (float)($temp / (60.0 * 10000.0));
+		} else {
+			$flon = (float)($temp / (60.0 * 10000.0));
+		}
 		return $flon;
 	}
 
@@ -158,10 +162,8 @@ 
     */
 	private function asciidec_2_8bit($ascii) {
 		//only process in the following range: 48-87, 96-119
-		if ($ascii < 48) { }
-		else {
-			if($ascii>119) { }
-			else {
+		if ($ascii < 48) { } else {
+			if($ascii>119) { } else {
 				if ($ascii>87 && $ascii<96) ;
 				else {
 					$ascii=$ascii+40;
@@ -263,7 +265,9 @@ 
 			$ro->lon = $this->make_lonf(bindec(substr($_aisdata,57,28)));
 			$ro->lat = $this->make_latf(bindec(substr($_aisdata,85,27)));
 			$ro->heading = bindec(substr($_aisdata,124,9));
-			if ($ro->heading == 511) $ro->heading = '';
+			if ($ro->heading == 511) {
+				$ro->heading = '';
+			}
 			$ro->cls = 2; // class B
 		} else if ($ro->id == 19) {
 			$ro->cog = bindec(substr($_aisdata,112,12))/10;
@@ -273,7 +277,9 @@ 
 			$ro->name = $this->binchar($_aisdata,143,120);
 			$ro->cls = 2; // class B
 			$ro->heading = bindec(substr($_aisdata,124,9));
-			if ($ro->heading == 511) $ro->heading = '';
+			if ($ro->heading == 511) {
+				$ro->heading = '';
+			}
 			$ro->typeid = bindec(substr($_aisdata,263,8));
 			$ro->type = $this->getShipType($ro->typeid);
 			//$ro->to_bow = bindec(substr($_aisdata,271,9));
@@ -304,9 +310,13 @@ 
 			$ro->cls = 2; // class B
 		} else if ($ro->id == 27) {
 			$ro->cog = bindec(substr($_aisdata,85,9));
-			if ($ro->cog == 511) $ro->cog = 0.0;
+			if ($ro->cog == 511) {
+				$ro->cog = 0.0;
+			}
 			$ro->sog = bindec(substr($_aisdata,79,6));
-			if ($ro->sog == 63) $ro->sog = 0.0;
+			if ($ro->sog == 63) {
+				$ro->sog = 0.0;
+			}
 			$ro->lon = $this->make_lonf(bindec(substr($_aisdata,44,18))*10);
 			$ro->lat = $this->make_latf(bindec(substr($_aisdata,62,17))*10);
 			$ro->cls = 1; // class A
@@ -354,27 +364,46 @@ 
 	}
 	
 	public function getShipType($code) {
-		if (isset($this->shiptype[$code])) return $this->shiptype[$code];
-		else return '';
+		if (isset($this->shiptype[$code])) {
+			return $this->shiptype[$code];
+		} else {
+			return '';
+		}
 	}
 
 	public function getShipTypeID($type) {
 		$typeid = array_search($type,$this->shiptype);
-		if ($typeid !== FALSE) return $typeid;
-		elseif ($type == 'Cargo' || $type == 'General Cargo' || $type == 'Bulk Carrier' || $type == 'Container Ship' || $type == 'Cargo A' || $type == 'Reefer' || $type == 'Vehicles Carrier') return 70;
-		elseif ($type == 'Passengers Ship' || $type == 'Passenger' || $type == 'Ro-Ro/Passenger Ship' || $type == 'Motor Passenger') return 60;
-		elseif ($type == 'Tanker' || $type == 'Crude Oil Tanker' || $type == 'Oil Products Tanker' || $type == 'Oil/Chemical Tanker' || $type == 'Bunkering Tanker') return 80;
-		elseif ($type == 'Lpg Tanker') return 84;
-		elseif ($type == 'Sailing Vessel') return 36;
-		elseif ($type == 'Yacht') return 37;
-		elseif ($type == 'Trailing Suction Hopper Dredger' || $type == 'Drilling Jack Up' || $type == 'Suction Dredger' || $type == 'Hopper Dredger') return 33;
-		elseif ($type == 'High speed craft') return 40;
-		elseif ($type == 'Icebreaker') return 52;
-		elseif ($type == 'Pollution Control Vessel') return 54;
-		elseif ($type == 'Other Type') return 90;
-		elseif ($type == 'Anchor Handling Vessel' || $type == 'Offshore Supply Ship' || $type == 'Research/Survey Vessel' || $type == 'Utility Vessel' || $type == 'Pipe Burying Vessel' || $type == 'Heavy Lift Vessel' || $type == 'Crane Ship') return 59;
-		elseif ($type == 'Fish Carrier' || $type == 'Trawler' || $type == 'Trawlers' || $type == 'Fishing Vessel' || $type == 'Trawlers|unknown Not Fishing' || $type == 'Purse Seines|trawlers' || $type == 'Purse Seines' || $type == 'Trollers') return 30;
-		else return '';
+		if ($typeid !== FALSE) {
+			return $typeid;
+		} elseif ($type == 'Cargo' || $type == 'General Cargo' || $type == 'Bulk Carrier' || $type == 'Container Ship' || $type == 'Cargo A' || $type == 'Reefer' || $type == 'Vehicles Carrier') {
+			return 70;
+		} elseif ($type == 'Passengers Ship' || $type == 'Passenger' || $type == 'Ro-Ro/Passenger Ship' || $type == 'Motor Passenger') {
+			return 60;
+		} elseif ($type == 'Tanker' || $type == 'Crude Oil Tanker' || $type == 'Oil Products Tanker' || $type == 'Oil/Chemical Tanker' || $type == 'Bunkering Tanker') {
+			return 80;
+		} elseif ($type == 'Lpg Tanker') {
+			return 84;
+		} elseif ($type == 'Sailing Vessel') {
+			return 36;
+		} elseif ($type == 'Yacht') {
+			return 37;
+		} elseif ($type == 'Trailing Suction Hopper Dredger' || $type == 'Drilling Jack Up' || $type == 'Suction Dredger' || $type == 'Hopper Dredger') {
+			return 33;
+		} elseif ($type == 'High speed craft') {
+			return 40;
+		} elseif ($type == 'Icebreaker') {
+			return 52;
+		} elseif ($type == 'Pollution Control Vessel') {
+			return 54;
+		} elseif ($type == 'Other Type') {
+			return 90;
+		} elseif ($type == 'Anchor Handling Vessel' || $type == 'Offshore Supply Ship' || $type == 'Research/Survey Vessel' || $type == 'Utility Vessel' || $type == 'Pipe Burying Vessel' || $type == 'Heavy Lift Vessel' || $type == 'Crane Ship') {
+			return 59;
+		} elseif ($type == 'Fish Carrier' || $type == 'Trawler' || $type == 'Trawlers' || $type == 'Fishing Vessel' || $type == 'Trawlers|unknown Not Fishing' || $type == 'Purse Seines|trawlers' || $type == 'Purse Seines' || $type == 'Trollers') {
+			return 30;
+		} else {
+			return '';
+		}
 	}
 
 	public function process_ais_itu($_itu, $_len, $_filler, $aux /*, $ais_ch*/) {
@@ -411,11 +440,20 @@ 
 		// assume 1st ! is valid
 		// find * ensure that it is at correct position
 		$end = strrpos ( $rawdata , '*' );
-		if ($end === FALSE) return -1; // check for NULLS!!!
+		if ($end === FALSE) {
+			return -1;
+		}
+		// check for NULLS!!!
 		$cs = substr( $rawdata, $end + 1 );
-		if ( strlen($cs) != 2 ) return -1; // correct cs length
+		if ( strlen($cs) != 2 ) {
+			return -1;
+		}
+		// correct cs length
 		$dcs = (int)hexdec( $cs );
-		for ( $alias=1; $alias<$end; $alias++) $chksum ^= ord( $rawdata[$alias] ); // perform XOR for NMEA checksum
+		for ( $alias=1; $alias<$end; $alias++) {
+			$chksum ^= ord( $rawdata[$alias] );
+		}
+		// perform XOR for NMEA checksum
 		if ( $chksum == $dcs ) { // NMEA checksum pass
 			$pcs = explode(',', $rawdata);
 			// !AI??? identifier
@@ -426,8 +464,14 @@ 
 			$num_seq = (int)$pcs[1]; // number of sequences
 			$seq = (int)$pcs[2]; // get sequence
 			// get msg sequence id
-			if ($pcs[3] == '') $msg_sid = -1; // non-multipart message, set to -1
-			else $msg_sid = (int)$pcs[3]; // multipart message
+			if ($pcs[3] == '') {
+				$msg_sid = -1;
+			}
+			// non-multipart message, set to -1
+			else {
+				$msg_sid = (int)$pcs[3];
+			}
+			// multipart message
 			$ais_ch = $pcs[4]; // get AIS channel
 			// message sequence checking
 			if ($num_seq < 1 || $num_seq > 9) {
@@ -490,10 +534,18 @@ 
 				//DEBUG echo "[$start $end $tst]\n";
 				$result = $this->process_ais_raw( $tst, "" );
 				$last_pos = $end + 1;
-			} else break;
+			} else {
+				break;
+			}
+		}
+		if ($last_pos > 0) {
+			$cbuf = substr($cbuf, $last_pos);
 		}
-		if ($last_pos > 0) $cbuf = substr($cbuf, $last_pos); // move...
-		if (strlen($cbuf) > 1024) $cbuf = ""; // prevent overflow simple mode...
+		// move...
+		if (strlen($cbuf) > 1024) {
+			$cbuf = "";
+		}
+		// prevent overflow simple mode...
 		return $result;
 	}
 
@@ -513,7 +565,9 @@ 
 		if ($lat<0.0) {
 			$lat = -$lat;
 			$neg=true;
-		} else $neg=false;
+		} else {
+			$neg=false;
+		}
 		$latd = 0x00000000;
 		$latd = intval ($lat * 600000.0);
 		if ($neg==true) {
@@ -529,7 +583,9 @@ 
 		if ($lon<0.0) {
 			$lon = -$lon;
 			$neg=true;
-		} else $neg=false;
+		} else {
+			$neg=false;
+		}
 		$lond = 0x00000000;
 		$lond = intval ($lon * 600000.0);
 		if ($neg==true) {
@@ -542,9 +598,14 @@ 
 
 	private function char2bin($name, $max_len) {
 		$len = strlen($name);
-		if ($len > $max_len) $name = substr($name,0,$max_len);
-		if ($len < $max_len) $pad = str_repeat('0', ($max_len - $len) * 6);
-		else $pad = '';
+		if ($len > $max_len) {
+			$name = substr($name,0,$max_len);
+		}
+		if ($len < $max_len) {
+			$pad = str_repeat('0', ($max_len - $len) * 6);
+		} else {
+			$pad = '';
+		}
 		$rv = '';
 		$ais_chars = array(
 		    '@'=>0, 'A'=>1, 'B'=>2, 'C'=>3, 'D'=>4, 'E'=>5, 'F'=>6, 'G'=>7, 'H'=>8, 'I'=>9,
@@ -557,9 +618,12 @@ 
 		);
 		// "
 		$_a = str_split($name);
-		if ($_a) foreach ($_a as $_1) {
+		if ($_a) {
+			foreach ($_a as $_1) {
 			if (isset($ais_chars[$_1])) $dec = $ais_chars[$_1];
-			else $dec = 0;
+		} else {
+				$dec = 0;
+			}
 			$bin = str_pad(decbin( $dec ), 6, '0', STR_PAD_LEFT);
 			$rv .= $bin;
 			//echo "$_1 $dec ($bin)<br/>";
@@ -571,7 +635,9 @@ 
 		$len_bit = strlen($_enc);
 		$rem6 = $len_bit % 6;
 		$pad6_len = 0;
-		if ($rem6) $pad6_len = 6 - $rem6;
+		if ($rem6) {
+			$pad6_len = 6 - $rem6;
+		}
 		//echo  $pad6_len.'<br>';
 		$_enc .= str_repeat("0", $pad6_len); // pad the text...
 		$len_enc = strlen($_enc) / 6;
@@ -580,8 +646,11 @@ 
 		for ($i=0; $i<$len_enc; $i++) {
 			$offset = $i * 6;
 			$dec = bindec(substr($_enc,$offset,6));
-			if ($dec < 40) $dec += 48;
-			else $dec += 56;
+			if ($dec < 40) {
+				$dec += 48;
+			} else {
+				$dec += 56;
+			}
 			//echo chr($dec)." $dec<br/>";
 			$itu .= chr($dec);
 		}
@@ -594,26 +663,42 @@ 
 		}
 		$hex_arr = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
 		$lsb = $chksum & 0x0F;
-		if ($lsb >=0 && $lsb <= 15 ) $lsbc = $hex_arr[$lsb];
-		else $lsbc = '0';
+		if ($lsb >=0 && $lsb <= 15 ) {
+			$lsbc = $hex_arr[$lsb];
+		} else {
+			$lsbc = '0';
+		}
 		$msb = (($chksum & 0xF0) >> 4) & 0x0F;
-		if ($msb >=0 && $msb <= 15 ) $msbc = $hex_arr[$msb];
-		else $msbc = '0';
+		if ($msb >=0 && $msb <= 15 ) {
+			$msbc = $hex_arr[$msb];
+		} else {
+			$msbc = '0';
+		}
 		$itu = '!'.$itu."*{$msbc}{$lsbc}\r\n";
 		return $itu;
 	}
 
 	public function parse($buffer) {
 		$data = $this->process_ais_buf($buffer);
-		if (!is_object($data)) return array();
+		if (!is_object($data)) {
+			return array();
+		}
 		$result = array();
-		if ($data->lon != 0) $result['longitude'] = $data->lon;
-		if ($data->lat != 0) $result['latitude'] = $data->lat;
+		if ($data->lon != 0) {
+			$result['longitude'] = $data->lon;
+		}
+		if ($data->lat != 0) {
+			$result['latitude'] = $data->lat;
+		}
 		$result['ident'] = trim($data->name);
 		$result['timestamp'] = $data->ts;
 		$result['mmsi'] = $data->mmsi;
-		if ($data->sog != -1.0) $result['speed'] = $data->sog;
-		if ($data->cog != 0) $result['heading'] = $data->cog;
+		if ($data->sog != -1.0) {
+			$result['speed'] = $data->sog;
+		}
+		if ($data->cog != 0) {
+			$result['heading'] = $data->cog;
+		}
 		/*
 		    $ro->cls = 0; // AIS class undefined, also indicate unparsed msg
 		    $ro->id = bindec(substr($_aisdata,0,6));
@@ -623,15 +708,25 @@ 
 
 	public function mmsitype($mmsi) {
 		if (strlen($mmsi) == 9) {
-			if (substr($mmsi,0,3) == '974') return 'EPIRB (Emergency Position Indicating Radio Beacon) AIS';
-			elseif (substr($mmsi,0,3) == '972') return 'MOB (Man Overboard) device';
-			elseif (substr($mmsi,0,3) == '970') return 'AIS SART (Search and Rescue Transmitter)';
-			elseif (substr($mmsi,0,3) == '111') return 'SAR (Search and Rescue) aircraft';
-			elseif (substr($mmsi,0,2) == '98') return 'Auxiliary craft associated with a parent ship';
-			elseif (substr($mmsi,0,2) == '99') return 'Aids to Navigation';
-			elseif (substr($mmsi,0,2) == '00') return 'Coastal stations';
-			elseif (substr($mmsi,0,1) == '0') return 'Group of ships';
-			else return 'Ship';
+			if (substr($mmsi,0,3) == '974') {
+				return 'EPIRB (Emergency Position Indicating Radio Beacon) AIS';
+			} elseif (substr($mmsi,0,3) == '972') {
+				return 'MOB (Man Overboard) device';
+			} elseif (substr($mmsi,0,3) == '970') {
+				return 'AIS SART (Search and Rescue Transmitter)';
+			} elseif (substr($mmsi,0,3) == '111') {
+				return 'SAR (Search and Rescue) aircraft';
+			} elseif (substr($mmsi,0,2) == '98') {
+				return 'Auxiliary craft associated with a parent ship';
+			} elseif (substr($mmsi,0,2) == '99') {
+				return 'Aids to Navigation';
+			} elseif (substr($mmsi,0,2) == '00') {
+				return 'Coastal stations';
+			} elseif (substr($mmsi,0,1) == '0') {
+				return 'Group of ships';
+			} else {
+				return 'Ship';
+			}
 		}
 
 	
@@ -647,32 +742,61 @@ 
 			//if ($globalDebug) echo '==== Line format not supported : '.$buffer."\n";
 			return array();
 		}
-		if ($data->lon != 0) $result['longitude'] = $data->lon;
-		if ($data->lat != 0) $result['latitude'] = $data->lat;
+		if ($data->lon != 0) {
+			$result['longitude'] = $data->lon;
+		}
+		if ($data->lat != 0) {
+			$result['latitude'] = $data->lat;
+		}
 		$result['ident'] = trim(str_replace('@','',$data->name));
 		$result['timestamp'] = $data->ts;
 		$result['mmsi'] = $data->mmsi;
-		if (strlen($result['mmsi']) == 8 && substr($result['mmsi'],0,3) == '669') $result['mmsi'] = '3'.$result['mmsi'];
+		if (strlen($result['mmsi']) == 8 && substr($result['mmsi'],0,3) == '669') {
+			$result['mmsi'] = '3'.$result['mmsi'];
+		}
 		$result['mmsi_type'] = $this->mmsitype($result['mmsi']);
-		if ($data->sog != -1.0) $result['speed'] = $data->sog;
-		if ($data->heading !== '') $result['heading'] = $data->heading;
-		elseif ($data->cog != 0) $result['heading'] = $data->cog;
-		if ($data->status != '') $result['status'] = $data->status;
-		if ($data->statusid !== '') $result['statusid'] = $data->statusid;
-		if ($data->type !== '') $result['type'] = $data->type;
-		if ($data->typeid !== '') $result['typeid'] = $data->typeid;
-		if ($data->imo !== '') $result['imo'] = $data->imo;
-		if ($data->callsign !== '') $result['callsign'] = trim(str_replace('@','',$data->callsign));
+		if ($data->sog != -1.0) {
+			$result['speed'] = $data->sog;
+		}
+		if ($data->heading !== '') {
+			$result['heading'] = $data->heading;
+		} elseif ($data->cog != 0) {
+			$result['heading'] = $data->cog;
+		}
+		if ($data->status != '') {
+			$result['status'] = $data->status;
+		}
+		if ($data->statusid !== '') {
+			$result['statusid'] = $data->statusid;
+		}
+		if ($data->type !== '') {
+			$result['type'] = $data->type;
+		}
+		if ($data->typeid !== '') {
+			$result['typeid'] = $data->typeid;
+		}
+		if ($data->imo !== '') {
+			$result['imo'] = $data->imo;
+		}
+		if ($data->callsign !== '') {
+			$result['callsign'] = trim(str_replace('@','',$data->callsign));
+		}
 		if (is_numeric($data->eta_month) && $data->eta_month != 0 && is_numeric($data->eta_day) && $data->eta_day != 0 && $data->eta_hour !== '' && $data->eta_minute !== '') {
 			$eta_ts = strtotime(date('Y').'-'.sprintf("%02d",$data->eta_month).'-'.sprintf("%02d",$data->eta_day).' '.sprintf("%02d",$data->eta_hour).':'.sprintf("%02d",$data->eta_minute).':00');
-			if ($eta_ts != '') $result['eta_ts'] = $eta_ts;
+			if ($eta_ts != '') {
+				$result['eta_ts'] = $eta_ts;
+			}
 		} elseif (is_numeric($data->eta_hour) && is_numeric($data->eta_minute)) {
 			$eta_ts = strtotime(date('Y-m-d').' '.sprintf("%02d",$data->eta_hour).':'.sprintf("%02d",$data->eta_minute).':00');
-			if ($eta_ts != '') $result['eta_ts'] = $eta_ts;
+			if ($eta_ts != '') {
+				$result['eta_ts'] = $eta_ts;
+			}
 		}
 		if ($data->destination != '') {
 			$dest = trim(str_replace('@','',$data->destination));
-			if ($dest != '') $result['destination'] = $dest;
+			if ($dest != '') {
+				$result['destination'] = $dest;
+			}
 		}
 		$result['all'] = (array) $data;
 		/*