protected override void HandleRequest()
{
string email = Parameters["email"];
string password = Parameters["password"];
try
{
StationInfo stationInfo = StationCollection.Instance.FindOne();
if (stationInfo != null)
{
logger.DebugFormat("Station logon with stationId = {0}", stationInfo.Id);
StationLogOnResponse logonRes;
if (email != null && password != null)
{
using (WebClient agent = new WebClient())
{
Driver driver = DriverCollection.Instance.FindOne(Query.EQ("email", email));
if (driver == null)
{
throw new InvalidOperationException("User is not registered to this station");
}
// station.logon must be called before user.login to handle non-existing driver case
logonRes = StationApi.LogOn(new WebClient(), stationInfo.Id, email, password, StatusChecker.GetDetail());
User user = User.LogIn(agent, email, password);
// update user's session token
driver.session_token = user.Token;
DriverCollection.Instance.Save(driver);
}
}
else
{
StationApi api = new StationApi(stationInfo.Id, stationInfo.SessionToken);
logonRes = api.LogOn(new WebClient(), StatusChecker.GetDetail());
}
// update session in DB
stationInfo.SessionToken = logonRes.session_token;
StationCollection.Instance.Save(stationInfo);
logger.Debug("Station logon successfully, disable block auth of function server");
functionServer.BlockAuth(false);
}
logger.Debug("Start function server");
functionServer.Start();
stationTimer.Start();
logger.Debug("Start function server successfully");
RespondSuccess();
}
catch (WammerCloudException e)
{
if (e.WammerError == 0x4000 + 3) // driver already registered another station
{
logger.Error("Driver already registered another station");
// force user re-register the station on next startup
CleanDB();
// function server should be stopped if driver's info is removed
logger.Debug("Try to stop function server");
functionServer.Stop();
stationTimer.Stop();
throw new ServiceUnavailableException("Driver already registered another station", (int)StationApiError.AlreadyHasStaion);
}
else if (e.WammerError == 0x4000 + 4) // user does not exist
{
logger.Error("Driver account does not exist");
// force user re-register the station on next startup
CleanDB();
// function server should be stopped if driver's info is removed
logger.Debug("Try to stop function server");
functionServer.Stop();
stationTimer.Stop();
throw;
}
else
{
throw;
}
}
}
private void SendHeartbeat(Object obj)
{
StationDetail detail = GetDetail();
Model.StationInfo sinfo = Model.StationCollection.Instance.FindOne();
if (sinfo != null)
{
bool locChange = false;
string baseurl = NetworkHelper.GetBaseURL();
if (baseurl != sinfo.Location)
{
// update location if baseurl changed
logger.DebugFormat("station location changed: {0}", baseurl);
sinfo.Location = baseurl;
locChange = true;
}
try
{
WebClient agent = new WebClient();
Cloud.StationApi api = new Cloud.StationApi(sinfo.Id, sinfo.SessionToken);
if (logon == false || DateTime.Now - sinfo.LastLogOn > TimeSpan.FromDays(1))
{
logger.Debug("cloud logon start");
api.LogOn(agent, detail);
logon = true;
// update station info in database
logger.Debug("update station information");
sinfo.LastLogOn = DateTime.Now;
Model.StationCollection.Instance.Save(sinfo);
}
if (locChange)
{
// update station info in database
logger.Debug("update station information");
Model.StationCollection.Instance.Save(sinfo);
}
api.Heartbeat(agent, detail);
}
catch (WammerCloudException ex)
{
WebException webex = (WebException)ex.InnerException;
if (webex != null)
{
HttpWebResponse response = (HttpWebResponse)webex.Response;
if (response != null)
{
if (response.StatusCode == HttpStatusCode.Unauthorized)
{
// station's session token expired, it might be caused by:
// 1. server maintenance
// 2. driver registered another station
// in this situation, client has to re-login/re-register the station
functionServer.BlockAuth(true);
}
}
}
logger.Warn("cloud send heartbeat error", ex);
}
catch (Exception ex)
{
logger.Warn("cloud send heartbeat error", ex);
}
}
}