|
public static create ( |
||
| $request | ||
| $from | ||
| $to | ||
// get stations
$stations = $app['api']->findLocations($query);
// get connections
$connections = array();
$from = reset($stations['from']) ?: null;
$to = reset($stations['to']) ?: null;
$via = array();
foreach ($stations as $k => $v) {
if (preg_match("/^via[0-9]+\$/", $k) && $v) {
$via[] = reset($v);
}
}
if ($from && $to) {
$app['stats']->station($from);
$app['stats']->station($to);
$query = ConnectionQueryParser::create($request, $from, $to, $via);
$errors = ConnectionQueryParser::validate($query);
if ($errors) {
return $app->json(array('errors' => $errors), 400);
}
$connections = $app['api']->findConnections($query);
}
$result = array('connections' => $connections, 'from' => $from, 'to' => $to, 'stations' => $stations);
$json = $app['serializer']->serialize((object) $result, 'json');
return new Response($json, 200, array('Content-Type' => 'application/json'));
});
// station board
$app->get('/v1/stationboard', function (Request $request) use($app) {
$stationboard = array();
$limit = $request->get('limit', 40);
if ($limit > 420) {
public function __construct()
{
parent::__construct();
$app = $this;
// default config
$app['debug'] = true;
$app['http_cache'] = false;
$app['buzz.client'] = null;
$app['monolog.level'] = \Monolog\Logger::ERROR;
$app['redis.config'] = false;
// array('host' => 'localhost', 'port' => 6379);
$app['stats.config'] = ['enabled' => false];
$app['rate_limiting.config'] = ['enabled' => false, 'limit' => 3];
$app['proxy'] = false;
$app['proxy_server.address'] = null;
/// load config
$config = __DIR__ . '/../../config.php';
if (stream_resolve_include_path($config)) {
include $config;
}
// New Relic
$app->register(new \Ekino\Bundle\NewRelicBundle\Silex\EkinoNewRelicServiceProvider(), ['new_relic.application_name' => false, 'new_relic.log_exceptions' => true]);
// HTTP cache
if ($app['http_cache']) {
$app->register(new \Silex\Provider\HttpCacheServiceProvider(), ['http_cache.cache_dir' => __DIR__ . '/../../var/cache/', 'http_cache.options' => ['debug' => $app['debug']]]);
}
// Exception handler
$app->error(function (\Exception $e, $code) use($app) {
if ($app['debug']) {
return;
}
if ($e instanceof HttpException && $e->getStatusCode() == 429) {
// don't log rate limiting
} else {
$app['stats']->error($e);
}
$errors = [['message' => $e->getMessage()]];
$result = ['errors' => $errors];
return $app->json($result, $code);
});
// Monolog
$app->register(new \Silex\Provider\MonologServiceProvider(), ['monolog.logfile' => __DIR__ . '/../../var/logs/transport.log', 'monolog.level' => $app['monolog.level'], 'monolog.name' => 'transport']);
$app->before(function (Request $request) use($app) {
$app['monolog']->addInfo('- ' . $request->getClientIp() . ' ' . $request->headers->get('referer') . ' ' . $request->server->get('HTTP_USER_AGENT'));
});
// if hosted behind a reverse proxy
if ($app['proxy']) {
$proxies = [$_SERVER['REMOTE_ADDR']];
if (is_array($app['proxy'])) {
$proxies = $app['proxy'];
}
Request::setTrustedProxies($proxies);
}
// Initialize buzz client
$client = $app['buzz.client'] ?: new \Buzz\Client\FileGetContents();
if ($app['proxy_server.address']) {
$client->setProxy($app['proxy_server.address']);
}
// create Transport API
$app['api'] = new \Transport\API(new \Buzz\Browser($client));
// allow cross-domain requests, enable cache
$app->after(function (Request $request, Response $response) use($app) {
$response->headers->set('Access-Control-Allow-Origin', '*');
if ($app['http_cache']) {
$response->headers->set('Cache-Control', 's-maxage=30, public');
}
});
// Serializer
$app['serializer'] = $app->share(function () use($app) {
$fields = $app['request']->get('fields') ?: [];
return new Serializer([new FieldsNormalizer($fields)], ['json' => new JsonEncoder()]);
});
// Redis
$redis = null;
try {
if ($app['redis.config']) {
$redis = new \Predis\Client($app['redis.config']);
$redis->connect();
}
} catch (\Exception $e) {
$app['monolog']->addError($e->getMessage());
$redis = null;
}
// statistics
$app['stats'] = new \Transport\Statistics($redis, $app['stats.config']['enabled']);
$app->after(function (Request $request, Response $response) use($app) {
if ($response->getStatusCode() !== 429) {
$app['stats']->call();
$app['stats']->resource($request->getPathInfo());
}
});
// rate limiting
$app['rate_limiting'] = new \Transport\RateLimiting($redis, $app['rate_limiting.config']['enabled'], $app['rate_limiting.config']['limit']);
$app->before(function (Request $request) use($app) {
if ($app['rate_limiting']->isEnabled()) {
$ip = $request->getClientIp();
if ($app['rate_limiting']->hasReachedLimit($ip)) {
throw new HttpException(429, 'Rate limit of ' . $app['rate_limiting']->getLimit() . ' requests per second exceeded');
}
$app['rate_limiting']->increment($ip);
}
});
$app->after(function (Request $request, Response $response) use($app) {
if ($app['rate_limiting']->isEnabled()) {
$ip = $request->getClientIp();
$response->headers->set('X-Rate-Limit-Limit', $app['rate_limiting']->getLimit());
$response->headers->set('X-Rate-Limit-Remaining', $app['rate_limiting']->getRemaining($ip));
$response->headers->set('X-Rate-Limit-Reset', $app['rate_limiting']->getReset());
}
});
// home
$app->get('/', function () use($app) {
return file_get_contents('index.html');
})->bind('home');
// api
$app->get('/v1/', function () use($app) {
return $app->json(['date' => date('c'), 'author' => 'Opendata.ch', 'version' => '1.0']);
})->bind('api');
/**
* Search locations.
*
* Returns the matching locations for the given parameters. Either query or ( x and y ) are required.
*
* The locations in the response are scored to determine which is the most exact location.
*
* This method can return a refine response, what means that the request has to be redone.
*
* @SWG\Get(
* path="/locations",
* tags={"locations"},
* @SWG\Parameter(
* name="query",
* in="query",
* description="Specifies the location name to search for (e.g. Basel)",
* type="string"
* ),
* @SWG\Parameter(
* name="x",
* in="query",
* description="Latitude (e.g. 47.476001)",
* type="number"
* ),
* @SWG\Parameter(
* name="y",
* in="query",
* description="Longitude (e.g. 8.306130)",
* type="number"
* ),
* @SWG\Parameter(
* name="type",
* in="query",
* description="Only with `query` parameter. Specifies the location type, possible types are:<ul><li>`all` (default): Looks up for all types of locations</li><li>`station`: Looks up for stations (train station, bus station)</li><li>`poi`: Looks up for points of interest (Clock tower, China garden)</li><li>`address`: Looks up for an address (Zurich Bahnhofstrasse 33)</li></ul>",
* type="string"
* ),
* @SWG\Parameter(
* name="transportations[]",
* in="query",
* description="Only with `x` and `y` parameter. Transportation means; one or more of `ice_tgv_rj`, `ec_ic`, `ir`, `re_d`, `ship`, `s_sn_r`, `bus`, `cableway`, `arz_ext`, `tramway_underground` (e.g. transportations[]=ec_ic&transportations[]=bus)",
* type="string"
* ),
* @SWG\Response(
* response="200",
* description="List of locations",
* @SWG\Schema(
* type="object",
* @SWG\Property(
* property="stations",
* type="array",
* @SWG\Items(ref="#/definitions/Location")
* ),
* ),
* ),
* )
*/
$app->get('/v1/locations', function (Request $request) use($app) {
$stations = [];
$x = $request->get('x') ?: null;
$y = $request->get('y') ?: null;
$transportations = $request->get('transportations');
if ($x && $y) {
$query = new NearbyQuery($x, $y);
if ($transportations) {
$query->transportations = (array) $transportations;
}
$stations = $app['api']->findNearbyLocations($query);
}
$query = $request->get('query');
if ($query) {
$query = new LocationQuery($query, $request->get('type'));
$stations = $app['api']->findLocations($query);
}
$result = ['stations' => $stations];
$json = $app['serializer']->serialize((object) $result, 'json');
return new Response($json, 200, ['Content-Type' => 'application/json']);
})->bind('locations');
/**
* Search connections.
*
* Returns the next connections from a location to another.
*
* @SWG\Get(
* path="/connections",
* tags={"connections"},
* @SWG\Parameter(
* name="from",
* in="query",
* description="Specifies the departure location of the connection (e.g. Lausanne)",
* type="string",
* required=true
* ),
* @SWG\Parameter(
* name="to",
* in="query",
* description="Specifies the arrival location of the connection (e.g. Genève)",
* type="string",
* required=true
* ),
* @SWG\Parameter(
* name="via[]",
* in="query",
* description="Specifies up to five via locations. When specifying several vias, array notation (via[]=Bern&via[]=Fribourg) is required",
* type="string"
* ),
* @SWG\Parameter(
* name="date",
* in="query",
* description="Date of the connection, in the format YYYY-MM-DD (e.g. 2012-03-25)",
* type="string"
* ),
* @SWG\Parameter(
* name="time",
* in="query",
* description="Time of the connection, in the format hh:mm (e.g. 17:30)",
* type="string"
* ),
* @SWG\Parameter(
* name="isArrivalTime",
* in="query",
* description="defaults to `0`, if set to `1` the passed `date` and `time` is the arrival time",
* type="integer"
* ),
* @SWG\Parameter(
* name="transportations[]",
* in="query",
* description="Transportation means; one or more of `ice_tgv_rj`, `ec_ic`, `ir`, `re_d`, `ship`, `s_sn_r`, `bus`, `cableway`, `arz_ext`, `tramway_underground` (e.g. transportations[]=ec_ic&transportations[]=bus)",
* type="string"
* ),
* @SWG\Parameter(
* name="limit",
* in="query",
* description="1 - 6. Specifies the number of connections to return. If several connections depart at the same time they are counted as 1.",
* type="integer"
* ),
* @SWG\Parameter(
* name="page",
* in="query",
* description="0 - 10. Allows pagination of connections. Zero-based, so first page is 0, second is 1, third is 2 and so on.",
* type="integer"
* ),
* @SWG\Parameter(
* name="direct",
* in="query",
* description="defaults to `0`, if set to `1` only direct connections are allowed",
* type="integer"
* ),
* @SWG\Parameter(
* name="sleeper",
* in="query",
* description="defaults to `0`, if set to `1` only night trains containing beds are allowed, implies `direct=1`",
* type="integer"
* ),
* @SWG\Parameter(
* name="couchette",
* in="query",
* description="defaults to `0`, if set to `1` only night trains containing couchettes are allowed, implies `direct=1`",
* type="integer"
* ),
* @SWG\Parameter(
* name="bike",
* in="query",
* description="defaults to `0`, if set to `1` only trains allowing the transport of bicycles are allowed",
* type="integer"
* ),
* @SWG\Parameter(
* name="accessibility",
* in="query",
* description="Possible values are `independent_boarding`, `assisted_boarding`, and `advanced_notice`",
* type="string"
* ),
* @SWG\Response(
* response="200",
* description="A list of connections",
* @SWG\Schema(
* type="object",
* @SWG\Property(
* property="connections",
* type="array",
* description="Found connections",
* @SWG\Items(ref="#/definitions/Connection")
* ),
* @SWG\Property(
* property="from",
* description="Departure station of search",
* ref="#/definitions/Station"
* ),
* @SWG\Property(
* property="to",
* description="Arrival station of search",
* ref="#/definitions/Station"
* ),
* @SWG\Property(
* property="stations",
* type="array",
* description="All stations from query",
* @SWG\Items(ref="#/definitions/Station")
* ),
* ),
* ),
* )
*/
$app->get('/v1/connections', function (Request $request) use($app) {
$query = LocationQueryParser::create($request);
// get stations
$stations = $app['api']->findLocations($query);
// get connections
$connections = [];
$from = reset($stations['from']) ?: null;
$to = reset($stations['to']) ?: null;
$via = [];
foreach ($stations as $k => $v) {
if (preg_match('/^via[0-9]+$/', $k) && $v) {
$via[] = reset($v);
}
}
if ($from && $to) {
$app['stats']->station($from);
$app['stats']->station($to);
$query = ConnectionQueryParser::create($request, $from, $to, $via);
$errors = ConnectionQueryParser::validate($query);
if ($errors) {
return $app->json(['errors' => $errors], 400);
}
$connections = $app['api']->findConnections($query);
}
$result = ['connections' => $connections, 'from' => $from, 'to' => $to, 'stations' => $stations];
$json = $app['serializer']->serialize((object) $result, 'json');
return new Response($json, 200, ['Content-Type' => 'application/json']);
})->bind('connections');
/**
* Get station board.
*
* Returns the next connections leaving from a specific location.
*
* @SWG\Get(
* path="/stationboard",
* tags={"stationboard"},
* @SWG\Parameter(
* name="station",
* in="query",
* description="Specifies the location of which a stationboard should be returned (e.g. Aarau)",
* type="string",
* required=true
* ),
* @SWG\Parameter(
* name="id",
* in="query",
* description="The id of the station whose stationboard should be returned. Alternative to the station parameter; one of these two is required. If both an id and a station are specified the id has precedence. e.g. 8503059 (for Zurich Stadelhofen)",
* type="string"
* ),
* @SWG\Parameter(
* name="limit",
* in="query",
* description="Number of departing connections to return. This is not a hard limit - if multiple connections leave at the same time it'll return any connections that leave at the same time as the last connection within the limit. For example: `limit=4` will return connections leaving at: 19:30, 19:32, 19:32, 19:35, 19:35. Because one of the connections leaving at 19:35 is within the limit, all connections leaving at 19:35 are shown.",
* type="integer"
* ),
* @SWG\Parameter(
* name="transportations[]",
* in="query",
* description="Transportation means; one or more of `ice_tgv_rj`, `ec_ic`, `ir`, `re_d`, `ship`, `s_sn_r`, `bus`, `cableway`, `arz_ext`, `tramway_underground` (e.g. transportations[]=ec_ic&transportations[]=bus)",
* type="string"
* ),
* @SWG\Parameter(
* name="datetime",
* in="query",
* description="Date and time of departing connections, in the format `YYYY-MM-DD hh:mm` (e.g. 2012-03-25 17:30)",
* type="string"
* ),
* @SWG\Parameter(
* name="type",
* in="query",
* description="`departure` (default) or `arrival`",
* type="string"
* ),
* @SWG\Response(
* response="200",
* description="Stationboard",
* @SWG\Schema(
* type="object",
* @SWG\Property(
* property="station",
* description="The first matched location based on the query. The stationboard will be displayed if this is a station.",
* ref="#/definitions/Station"
* ),
* @SWG\Property(
* property="stationboard",
* description="A list of journeys with the stop of the line leaving from that station.",
* type="array",
* @SWG\Items(ref="#/definitions/Journey")
* ),
* ),
* ),
* )
*/
$app->get('/v1/stationboard', function (Request $request) use($app) {
$stationboard = [];
$limit = $request->get('limit', 40);
if ($limit > 420) {
return new Response('Invalid value for Parameter `limit`.', 400);
}
$date = $request->get('date');
if (!$date) {
$date = $request->get('datetime');
}
if ($date) {
$date = new \DateTime($date, new \DateTimeZone('Europe/Zurich'));
}
$transportations = $request->get('transportations');
$station = $request->get('station') ?: $request->get('id');
$boardType = $request->get('type');
$query = new LocationQuery($station, 'station');
$stations = $app['api']->findLocations($query);
$station = reset($stations);
if ($station instanceof Station) {
$app['stats']->station($station);
$query = new StationBoardQuery($station, $date);
if ($transportations) {
$query->transportations = (array) $transportations;
}
if ($boardType) {
$query->boardType = $boardType;
}
$query->maxJourneys = $limit;
$stationboard = $app['api']->getStationBoard($query);
}
$result = ['station' => $station, 'stationboard' => $stationboard];
$json = $app['serializer']->serialize((object) $result, 'json');
return new Response($json, 200, ['Content-Type' => 'application/json']);
})->bind('stationboard');
// Swagger
$app->get('/swagger.json', function () use($app) {
$swagger = \Swagger\scan(__DIR__);
return new Response($swagger, 200, ['Content-Type' => 'application/json']);
})->bind('swagger');
}