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getflights.php
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getflights.php
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<?php
/******************************************************************************
*
* Copyright © Tobias Kühne
*
* You may use and distribute this software free of charge for non-commercial
* purposes. The software must be distributed in its entirety, i.e. containing
* ALL binary and source files without modification.
* Publication of modified versions of the source code provided herein,
* is permitted only with the author's written consent. In this case the
* copyright notice must not be removed or altered, all modifications to the
* source code must be clearly marked as such.
*
******************************************************************************/
/******************************************************************************
*
* Debug options: debug=[url,json,jflights,flights,sql]
* fmt=[htm|html|...]
*
* Test options: prefix=localhost/fra-flugplan/fra-flugplan-trunk/
* time={localtime as '%Y-%m-%dT%H:%M:%S%z'}
*
******************************************************************************/
/*
#!/usr/bin/php -f
*/
$script_start = microtime(TRUE);
error_reporting(E_ALL | E_STRICT);
mb_internal_encoding('UTF-8');
ini_set('max_execution_time', 180);
require_once ".config";
require_once "classes/etc.php";
require_once "classes/curl.php";
require_once "classes/vector.php";
require_once "classes/sql-xpdo.php";
/* Create dir for warn_once() */
$datadir = "$_SERVER[DOCUMENT_ROOT]/var/run/fra-flugplan";
$ignorelist = "$datadir/warnings.ignore";
/* Initialise warnings for warn_once() */
if (file_exists($datadir))
{
if (!is_dir($datadir))
die(seterrorinfo(__LINE__, $datadir));
}
else
{
if (!mkdir($datadir, 0770, true))
die(seterrorinfo(__LINE__, $datadir));
}
if (!file_exists($ignorelist))
{
$ignore = array();
}
else
{
$ignore = file($ignorelist);
foreach($ignore as &$entry)
$entry = trim($entry);
unset($entry);
}
/* Initialise variables */
$errorinfo = NULL;
$warning = NULL;
$info = NULL;
$tz = date_default_timezone_set('Europe/Berlin');
$now = new StdClass();
$now->time_t = time();
$prefix = '';
$items = 50;
if (0)
$lookback = 60 * 60; /*[s]*/
else
$lookback = 0;
/* If no `esti` time is set for departure,
estimate $defer from now, so flights will still be visible */
$defer = 5 * 60; /*[s]*/
/* Debug features */
if (isset($_GET['prefix']))
{
/* May be overridden for testing */
$prefix = $_GET['prefix'];
$len = strlen($prefix);
if (substr($prefix, $len - 1, 1) != '/')
$prefix .= '/';
$defer = 60 * 60; /*[s]*/
$lookback = 0;
$items = 3;
}
if (isset($_GET['time']))
{
$now->atom = $_GET['time'];
$now->time_t = strtotime($now->atom);
}
$now->atom = date(DATE_ISO8601, $now->time_t);
if (isset($_GET['debug']))
{
$flags = explode(",", $_GET['debug']);
if ('full' == $_GET['debug'])
{
$full = 'url,json,flights,sql';
foreach (explode(',', $full) as $key)
$DEBUG[$key] = 1;
}
else
{
foreach ($flags as $key)
$DEBUG[$key] = 1;
}
unset($flags);
$DEBUG['any'] = 1;
}
if (isset($_GET['help']) ||
isset($_GET['debug']))
{
if (isset($_GET['fmt']))
$DEBUG['fmt'] = $_GET['fmt'];
else if (isset($_GET['format']))
$DEBUG['fmt'] = $_GET['format'];
else
$DEBUG['fmt'] = 'txt';
}
if (isset($DEBUG['fmt']))
{
if ('htm' == $DEBUG['fmt'])
$DEBUG['fmt'] = 'html';
if ('html' == $DEBUG['fmt'])
{
?>
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>getflights · debug output</title>
</head>
<body>
<pre>
<?php
}
}
if (isset($_GET['help']))
{
echo <<<EOF
debug=
url
json
jflights
flights
sql
fmt=
htm|html
EOF;
goto fin;
}
function geterrorinfo()
{
global $error;
return $error;
}
function seterrorinfo($line, $info)
{
global $errorinfo;
$error = __FILE__;
if ($info)
{
$error .= "($line): $info\n";
}
else
{
$e = error_get_last();
if (!$line)
$line = $e['line'];
$error .= sprintf("(%u): " , $line);
$error .= sprintf("[%d] %s\n", $e['type'], $e['message']);
}
$errorinfo .= $error;
return $error;
}
function warn_once($line, $info)
{
global $ignorelist;
global $ignore;
global $warning;
/* Check whether warning already issued */
foreach ($ignore as $entry)
{
if ($entry == $info)
return;
}
if (!$warning)
$warning = '';
$warning .= __FILE__."($line): $info\n";
$ignore[] = $info;
/* Save warning */
$file = fopen($ignorelist, 'a+');
if ($file)
{
fwrite($file, "$info\n");
fclose($file);
}
}
function warn($line, $text)
{
global $warning;
if (!$warning)
$warning = '';
$warning .= __FILE__."($line): $text\n";
}
function info($line, $text)
{
global $info;
if (!$info)
$info = '';
$info .= __FILE__."($line): $text\n";
}
function sqlErrorInfo($line, $obj, $query)
{
$error = $obj->errorInfo();
return seterrorinfo($line,
sprintf("[%s-%s]: %s: %s",
$error[0], $error[1], $error[2],
unify_query($query)));
}
function unify_query($query)
{
// Cleanup query for single line display with 1 space separator
$query = preg_replace('/[ \t\r]*\n[ \t]*/', ' ', $query);
$query = preg_replace('/[ \t]*(;?)$/', '\\1', $query);
$query = preg_replace('/^[ \t]*/', '', $query);
$query = preg_replace('/\([ \t]+/', '(', $query);
$query = preg_replace('/[ \t]+\)/', ')', $query);
return $query."\n";
}
function unify_html($html)
{
global $DEBUG;
if (isset($DEBUG['fmt']))
{
if ('html' == $DEBUG['fmt'])
{
$html = str_replace(array("\r", "\n", "<br>"),
array(" ", " ", "<br>"), htmlspecialchars($html));
$html = preg_replace('/>[ \t]+</', '><', $html);
}
}
return $html;
}
// Insert hyphen into reg, based on regex
function patchreg($reg)
{
$regdb = array(
// https://www.revolvy.com/main/index.php?s=List%20of%20aircraft%20registration%20prefixes
// http://arg-intl.com/resources/icao-aircraft-registration-prefixes/
// https://www.skytamer.com/5.2.htm
// https://en.wikipedia.org/wiki/List_of_aircraft_registration_prefixes
// https://www.airlineupdate.com/content_public/codes/misc_codes/nat_reg.htm
// http://www.airlinecodes.co.uk/regprefixcur.asp
// https://aircraft-registration-country-codes.blogspot.de/
// https://www.aviatorjoe.net/go/icao-registration-prefixes/
'/^2[A-Z]+/', 1,
'/^3[ABCDX]/', 2,
'/^4[KLORWX]/', 2,
'/^5[ABHNRTUVWXY]/', 2,
'/^6[VWY]/', 2,
'/^6O[^S]/', 2,
'/^6OS/', 3,
'/^7[OPQT]/', 2,
'/^8[PQR]/', 2,
'/^9[AGHJKLMNOQUVY]/', 2,
'/^9XR/', 3,
'/^A[^2345679NP]/', 1,
'/^A[23567NP]/', 2,
'/^A4O/', 3,
'/^A9C/', 3,
'/^B[^R]/', 1,
'/^BR/', 2,
'/^C[^23569BCHNPRSUVX]/', 1,
'/^C[23569BCHNPRSUVX]/', 2,
'/^CCCP/', 4,
'/^D[^246MQ]/', 1,
'/^D[246MQ]/', 2,
'/^E[35CIJKLPRSTWXYZ]/', 2,
'/^F[A-Z]{4}/', 1,
'/^FAE[0-9]+/', 3,
'/^G/', 1,
'/^H[4ABCHIKPRSVZ]/', 2,
'/^I/', 1,
'/^JA/', 0,
'/^J[235678Y]/', 2,
'/^JU/', 2,
'/^K[^W]/', 1,
'/^KW/', 2,
'/^L[GINQRVXYZ]/', 2,
'/^M[^T]/', 1,
'/^MT/', 2,
'/^N/', 0,
'/^O[ABDEHKMOY]/', 2,
'/^P[^24HIJKPRTZ]/', 1,
'/^P[24HIJKPRTZ]/', 2,
'/^R[^ACPVX]/', 1,
'/^R[ACPVX]/', 2,
'/^RDPL/', 4,
'/^S[23579ELNPTUX]/', 2,
'/^T[379CFGIJLNRSTUYZ]/', 2,
'/^U[HKLNPR]/', 2,
'/^V[234578HNPQRT]/', 2,
'/^X[ABCHTUVWYZ]/', 2,
'/^Y[AEIJKLNRSUV]/', 2,
'/^Z[^3AKLPSTU]/', 1,
'/^Z[3AKLPSTU]/', 2,
);
for ($i = 0; $i < count($regdb); $i += 2)
{
if (preg_match($regdb[$i], $reg))
{
if ($regdb[$i + 1])
return substr($reg, 0, $regdb[$i + 1]).'-'.substr($reg, $regdb[$i + 1]);
}
}
return $reg;
}
/*
// representation of airline as decoded from JSON
{
"id": "LH",
"name": "Lufthansa",
"t": 1, // [null] Terminal
"h": "A", // [null] Halle
"s": "260-338" // [null] Schalter
}
// representation of airport as decoded from JSON
{
"id": "YUL",
"icao": "CYUL",
"nameshort": "Montreal",
"name": "Montreal-Pierre Elliot Trudeau",
"land": "Kanada",
"region": "am",
"regionorg": "Nord-Amerika I",
"soend": "2016-11-06T06:00:00+0100", // = [null] Sommerzeit Ende
"sostart": "2016-03-13T07:00:00+0100", // = [null] Sommerzeit Start
"uso": -4, // [null] Unterschied Sommer
"uwi": -5 // Unterschied Winter
}
// representation of aircraft as decoded from JSON
{
"id": "A319",
"name": "A319/ACJ",
"fab": "Airbus"
}
*/
// representation of the flight as decoded from JSON
class jflight
{
public $id; // = "a20151222lh1013"
// last update
public $lu; // = "2015-12-07T05:31:58+0100"
// flight
public $typ; // = enum { "P", "F" }
public $fnr; // = "LH 1013"
public $schedDep; // = "2015-12-07T15:10:00+0100"
public $sched; // = "2015-12-07T16:10:00+0100"
public $esti; // = [null] "2015-12-05T16:21:00+0100"
// airline
public $al; // = "LH"
public $alname; // = "Lufthansa"
// airport
public $iata; // = "BRU"
public $apname; // = "Br\u00fcssel"
// diversion
public $div; // = "CGN"
public $divname; // = "K\u00f6ln/Bonn"
// route???
public $rou; // = [null] "ABV"
public $rouname; // = [null] "Abuja"
// aircraft
public $ac; // = [null?] "TRN", "TRS"
public $reg; // = [null] "DABFA"
// ...
public $status; // = [null] enum
/* {
{ 'de', 'en', 'zh' },
{ 'storniert', 'storniert', 'storniert' },
{ 'annulliert', 'cancelled', '取消' },
{ 'umgeleitet', 'diverted', '航线改道' },
{ 'versp\u00e4tet', 'versp\u00e4tet', 'versp\u00e4tet' },
{ 'versp\u00e4tet auf ...', 'delayed to' },
{ 'Ankunft vom', },
{ 'im Anflug', 'approaching', '在飞行中' },
{ 'gelandet', 'landed', '已着陆' },
{ 'auf Position', 'on position', '至机位', },
{ 'Gep\u00e4ckausgabe', 'baggage delivery', '托运行李领取' },
{ 'Gep\u00e4ckausgabe beendet', 'baggage delivery finished', '托运行李领取已结束' },
{ 'Neues Gate', 'Neues Gate', 'Neues Gate' },
{ 'Gate offen', 'Gate open', '登机口开放' },
{ 'Aufruf', 'ready for Boarding', '准备登机' },
{ 'Boarding', 'Boarding', '登机' },
{ 'geschlossen', 'closed', '已关闭' },
{ 'gestartet', 'started' '已起飞' },
{ 'Zug', 'train', '火车' },
} */
public $terminal; // = [null] enum { 1, 2 }
public $halle; // = [null] "A"
public $ausgang; // = [null] "A2"
public $gate; // = [null] "A25"
public $schalter; // = [null] "260-338"
public $stops; // = [null] 0
// code share
public $cs; // = [null] array("", "")
// unknown
public $s; // = [null] enum { false, true }
public $flstatus; // = [null] enum { 0 /* default */ , 1, 2, 3 /* verspätet auf ... */ }
public $duration; // = [null] 60 // min
public $lang; // = "de"
}
abstract class FlightStatus
{
const CANCELLED = -2;
const IGNORE = -1;
const UNDEFINED = 0;
const APPROACHING = 1;
const ARRIVED = 2;
const BOARDING = 3;
const DEPARTED = 4;
}
class airline
{
public $id;
public $code;
public $name;
public function __construct($al, $alname)
{
$this->id = 0;
$this->code = $al;
$this->name = $alname;
}
}
class airport
{
public $id;
public $iata;
public $icao;
public $name;
public $country;
public function __construct($iata = NULL)
{
$this->id = 0;
$this->iata = $iata;
$this->icao = NULL;
$this->name = NULL;
$this->country = (object) [ 'id' => 0, 'name' => '' ];
}
}
class aircrafttype
{
public $id;
public $icao;
public $name;
public function __construct($icao = NULL)
{
$this->id = 0;
$this->icao = $icao;
$this->name = NULL;
}
}
class aircraft
{
public $id;
public $reg;
public $type;
public function __construct($reg, $type)
{
$this->id = 0;
$this->reg = $reg;
$this->type = new aircrafttype($type);
}
}
// representation of the flight as we are working with in this script
class flight
{
public $id;
public $type; // type = enum { "P", "F" }
public $airline; // airline = { id = 0, code = "LH", name = "Lufthansa" }
public $fnr; // fnr = "1013"
public $scheduled; // scheduled = "2015-12-07T05-12-22T16;10;00+0100"
public $expected; // expected = [null] "2015-12-05T16;21;00+0100"
public $airport; // airport = { id = 0, iata = "BRU", icao = "EBBR", name = "Brüssel" }
public $aircraft; // ac = { id = 0, reg = "D-AIRY", tid = 0, icao = "A306" }
public $status; // status = enum FlightStatus()
public $lu; // last update = "2015-12-07T05;31;58+0100"
public function __construct($type, $al, $alname, $fnr, $sched, $esti, $ac, $reg, $iata, $status, $lu)
{
$this->id = 0;
$this->type = $type;
$this->airline = new airline($al, $alname);
$this->fnr = $fnr;
$this->scheduled = $sched;
$this->expected = $esti;
$this->airport = new airport($iata);
$this->aircraft = new aircraft($reg, $ac);
$this->status = $status;
$this->lu = $lu;
}
}
// Get JSON error messages
$constants = get_defined_constants(true);
$json_errors = array();
foreach ($constants["json"] as $name => $value)
{
if (0 == strncmp($name, "JSON_ERROR_", 11))
$json_errors[$value] = $name;
}
function CURL_GetAirline(/* in */ $curl, /* in/out */ &$airline)
{
global $DEBUG;
global $prefix;
$error = NULL;
$url = "https://${prefix}www.frankfurt-airport.com/de/_jcr_content.airlines.json";
if (isset($DEBUG['url']))
echo "$url\n";
$retry = 3;
do
{
/* Set script execution limit. If set to zero, no time limit is imposed. */
set_time_limit(0);
$error = $curl->exec($url, $json, 5);
// check: curl ETIMEDOUT ??
}
while (!$error && !$json && --$retry);
if ($error)
{
/* This is certainly a html error document... */
if ($json)
{
$json = unify_html($json);
$error = seterrorinfo(__LINE__, "$error: $url: `$json`");
}
else
{
$error = seterrorinfo(__LINE__, "$error: $url");
}
}
else
{
if (!$json)
{
$error = seterrorinfo(__LINE__, "Empty response: $url");
}
else
{
$obj = json_decode($json);
if (NULL == $obj)
{
$error = seterrorinfo(__LINE__, "json_decode($json)");
$result = -1;
}
else
{
$error = NULL;
foreach ($obj->data as $idx => $value)
{
$a = (object)$value;
if ($a->id == $airline->code)
{
if (isset($DEBUG['jflights']))
{
echo json_encode($a, JSON_PRETTY_PRINT);
echo "\n";
}
$airline->name = $a->name;
break;
}
}
}
}
}
return $error;
}
function CURL_GetAirport(/* in */ $curl, /* in/out */ &$airport)
{
global $DEBUG;
global $prefix;
global $db;
$query = <<<SQL
/*[Q21]*/
SELECT `id`,`de`,`alpha-2`
FROM `countries`
SQL;
$st = $db->query($query);
if (!$st)
{
$error = sqlErrorInfo(__LINE__, $db, $query);
}
else
{
$countries = array();
while ($row = $st->fetchObject())
$countries["$row->de"] = (int)$row->id;
foreach (array( 'USA' => 'Vereinigte Staaten von Amerika',
'Korea-Süd' => 'Südkorea',
'Großbritannien' => 'Vereinigtes Königreich',
'Weißrußland' => 'Weißrussland',
'Äquatorial-Guinea' => 'Äquatorialguinea',
'Saint Lucia' => 'St. Lucia',
'Ver.Arab.Emirate' => 'Vereinigte Arabische Emirate',
'Bosnien-Herzegow' => 'Bosnien und Herzegovina',
'Dominikan. Rep.' => 'Dominikanische Republik',
'Niederländische Antillen' => 'Curaçao',
'Bangladesh' => 'Bangladesch',
) as $alias => $name)
{
if (isset($countries["$name"]))
$countries["$alias"] = $countries["$name"];
}
$error = NULL;
$url = "https://${prefix}www.frankfurt-airport.com/de/_jcr_content.airports.json".
($prefix ? "?local" : "");
if (isset($DEBUG['url']))
echo "$url\n";
$retry = 3;
do
{
/* Set script execution limit. If set to zero, no time limit is imposed. */
set_time_limit(0);
$error = $curl->exec($url, $json, 5);
}
while (!$error && !$json && --$retry);
if ($error)
{
/* This is certainly a html error document... */
if ($json)
{
$json = unify_html($json);
$error = seterrorinfo(__LINE__, "$error: $url: `$json`");
}
else
{
$error = seterrorinfo(__LINE__, "$error: $url");
}
}
else
{
if (!$json)
{
$error = seterrorinfo(__LINE__, "Empty response: $url");
}
else
{
$obj = json_decode($json);
if (NULL == $obj)
{
$error = seterrorinfo(__LINE__, "json_decode($json)");
$result = -1;
}
else
{
$error = NULL;
foreach ($obj->data as $idx => $value)
{
$a = (object)$value;
if ($a->id == $airport->iata)
{
if (isset($DEBUG['jflights']))
{
echo json_encode($a, JSON_PRETTY_PRINT);
echo "\n";
}
$airport->icao = $a->icao;
$airport->name = $a->name;
if (isset($countries["$a->land"]))
{
$airport->country->id = $countries["$a->land"];
$airport->country->name = "$a->land";
}
break;
}
}
}
}
}
}
return $error;
}
function CURL_GetAircraftType(/* in */ $curl, /* in/out */ &$aircraft)
{
global $DEBUG;
global $prefix;
$error = NULL;
$url = "https://${prefix}www.frankfurt-airport.com/de/_jcr_content.aircrafts.json";
if (isset($DEBUG['url']))
echo "$url\n";
$retry = 3;
do
{
/* Set script execution limit. If set to zero, no time limit is imposed. */
set_time_limit(0);
$error = $curl->exec($url, $json, 5);
}
while (!$error && !$json && --$retry);
if ($error)
{
/* This is certainly a html error document... */
if ($json)
{
$json = unify_html($json);
$error = seterrorinfo(__LINE__, "$error: $url: `$json`");
}
else
{
$error = seterrorinfo(__LINE__, "$error: $url");
}
}
else
{
if (!$json)
{
$error = seterrorinfo(__LINE__, "Empty response: $url");
}
else
{
$obj = json_decode($json);
if (NULL == $obj)
{
$error = seterrorinfo(__LINE__, "json_decode($json)");
$result = -1;
}
else
{
$error = NULL;
foreach ($obj->data as $idx => $value)
{
$a = (object)$value;
if ($a->id == $aircraft->type->icao)
{
if (isset($DEBUG['jflights']))
{
echo json_encode($a, JSON_PRETTY_PRINT);
echo "\n";
}
$aircraft->type->name = "$a->fab $a->name";
break;
}
}
}
}
}
return $error;
}
/* Map string to class FlightStatus */
function MapFlightStatus(/*in/out*/ &$status)
{
if (!isset($status))
{
$status = FlightStatus::UNDEFINED;
}
else if (!strlen($status))
{
$status = FlightStatus::UNDEFINED;
}
else
switch ($status)
{
case 'storniert':
case 'annulliert':
case 'cancelled':
case '取消':
$status = FlightStatus::CANCELLED;
break;
case 'umgeleitet':
case 'diverted':
case '航线改道':
case 'im Anflug':
case 'approaching':
case '在飞行中':
$status = FlightStatus::APPROACHING;
break;
case 'auf Position':
case 'on position':
case '至机位':
// fallthrough
case 'gelandet':
case 'landed':
case '已着陆':
$status = FlightStatus::ARRIVED;
break;
case 'Gepäckausgabe':
case 'baggage delivery':
case '托运行李领取':
// fallthrough
case 'Gepäckausgabe beendet':
case 'baggage delivery finished':
case '托运行李领取已结束':
$status = FlightStatus::IGNORE;
break;
case 'Neues Gate':
case 'new Gate':
case 'Gate offen':
case 'Gate open':
case '登机口开放':
// fallthrough
case 'Aufruf':
case 'ready for Boarding':
case '准备登机':
// fallthrough
case 'Boarding':
case '登机':
// fallthrough
case 'geschlossen':
case 'closed':
case '已关闭':
$status = FlightStatus::BOARDING;
break;
case 'gestartet':
case 'started':
case 'departed':
case '已起飞':
$status = FlightStatus::DEPARTED;
break;
case 'Zug':
case 'train':
case '火车':
$status = FlightStatus::IGNORE;
break;
default:
if ('verspätet' == mb_substr($status, 0, 9))
{
$status = FlightStatus::APPROACHING;
}
else if ('Ankunft vom' == mb_substr($status, 0, 11))
{
$status = FlightStatus::APPROACHING;
}
else if ('arrival from' == mb_substr($status, 0, 12))
{
$status = FlightStatus::APPROACHING;
}
else if ('delayed to' == mb_substr($status, 0, 10))
{
$status = FlightStatus::APPROACHING;
}
else if ('delayed from' == mb_substr($status, 0, 12))
{
$status = FlightStatus::APPROACHING;
}
else
{
warn_once(__LINE__, "Status '$status' is unknown.");
$status = FlightStatus::UNDEFINED;
}
}
}
// Convert JSON into vector of flight objects
function JSON_InterpretFlights(/*in*/ $dir, /*in*/ $json, /*in*/ $defer,
/*inout*/ &$flights, /*out*/ &$last, /*out*/ &$count)