public void Insert(IntroducerInfo info)
{
db.Open();
string query = "INSERT INTO [dbo].[Introducer] ( [IntroducerCode] "
+ ",[IntroducerName] "
+ ",[IntroducerWorkerID] "
+ ",[CreateUser] "
+ ",[CreateDate] "
+ ",[LastModifyUser] "
+ ",[LastModifyDate] "
+ ") "
+ "VALUES ( @IntroducerCode "
+ ",@IntroducerName "
+ ",@IntroducerWorkerID "
+ ",@CreateUser "
+ ",@CreateDate "
+ ",@LastModifyUser "
+ ",@LastModifyDate "
+ ") ";
db.Execute(query, info);
db.Close();
}
internal void IntroductionRelayOffered(IntroducerInfo intro)
{
if (!RouterContext.Inst.IsFirewalled)
{
return;
}
Logging.LogTransport($"SSU Introduction: Added introducer {intro.Host}, {intro.IntroKey}, {intro.IntroTag}, {intro.EndPoint}");
switch (GatherIntroducersState)
{
case GatherIntroducersStates.Startup:
ConsiderUpdateIntroducers.Do(() =>
{
var intros = SelectIntroducers()
.Select(p => p.Left.RemoteIntroducerInfo);
if (intros.Any())
{
SetIntroducers(intros);
ConsiderUpdateIntroducers.Frequency = TickSpan.Minutes(10);
GatherIntroducersState = GatherIntroducersStates.Established;
}
});
break;
case GatherIntroducersStates.Established:
ConsiderUpdateIntroducers.Do(() =>
{
SetIntroducers(SelectIntroducers()
.Select(p => p.Left.RemoteIntroducerInfo));
});
break;
}
}
// Session to introducer
internal SSUSession(SSUHost owner, IPEndPoint remoteep, IntroducerInfo ii, IMTUProvider mtup, RouterContext rc)
{
Host = owner;
RemoteEP = remoteep;
MTUProvider = mtup;
MyRouterContext = rc;
RemoteAddr = new I2PRouterAddress(ii.Host, ii.Port, 0, "SSU");
// TODO: This is what PurpleI2P does. Seems strange... But there is no RouterInfo available for introducer sessions.
RemoteRouter = MyRouterContext.MyRouterIdentity;
TransportInstance = Interlocked.Increment(ref NTCPClient.TransportInstanceCounter);
#if LOG_ALL_TRANSPORT
DebugUtils.LogDebug("SSUSession: " + DebugId + " Introducer instance created.");
#endif
Fragmenter = new DataFragmenter();
if (RemoteAddr == null)
{
throw new NullReferenceException("SSUSession needs an address");
}
IntroKey = ii.IntroKey;
MTU = MTUProvider.GetMTU(remoteep);
}
public bool IsExisted(IntroducerInfo info)
{
db.Open();
String query = "select count(*) from Introducer "
+ " where IntroducerCode = @IntroducerCode ";
var obj = (List <int>)db.Query <int>(query, info);
db.Close();
return(obj[0] > 0);
}
public void Save(IntroducerInfo info)
{
if (this.IsExisted(info))
{
this.Update(info);
}
else
{
this.Insert(info);
}
}
internal RelayRequestState(SSUSession sess, IList <IntroducerInfo> introducers) : base(sess)
{
Introducers = introducers;
if (Introducers.Count == 0)
{
throw new FailedToConnectException("SSU +{Session.TransportInstance}+ Failed to find a non established introducer");
}
else
{
CurrentIntroducer = Introducers[0];
Introducers.RemoveAt(0);
Session.Host.RelayResponseReceived += new SSUHost.RelayResponseInfo(Host_RelayResponseReceived);
}
}
public void Update(IntroducerInfo info)
{
db.Open();
string query = " UPDATE [dbo].[Introducer] SET "
+ " [IntroducerName] = @IntroducerName "
+ ", [IntroducerWorkerID] = @IntroducerWorkerID "
+ ", [CreateUser] = @CreateUser "
+ ", [CreateDate] = @CreateDate "
+ ", [LastModifyUser] = @LastModifyUser "
+ ", [LastModifyDate] = @LastModifyDate "
+ " where IntroducerCode = @IntroducerCode ";
db.Execute(query, info);
db.Close();
}
public override SSUState Run()
{
if (NextState != null)
{
Session.Host.RelayResponseReceived -= Host_RelayResponseReceived;
return(NextState);
}
if (Timeout(HandshakeStateTimeoutSeconds))
{
Session.Host.RelayResponseReceived -= Host_RelayResponseReceived;
throw new FailedToConnectException("SSU RelayRequestState {Session.DebugId} Failed to connect. Timeout.");
}
ResendRelayRequestAction.Do(() =>
{
if (++Retries > RelayRequestStateMaxRetries)
{
Logging.LogTransport($"SSU RelayRequestState: {Session.DebugId}" +
$" Using introducer '{CurrentIntroducer.EndPoint}' timed out.");
if (Introducers.Count == 0)
{
Session.Host.RelayResponseReceived -= Host_RelayResponseReceived;
throw new FailedToConnectException($"SSU +{Session.TransportInstance}+ Failed to find a non established introducer");
}
else
{
CurrentIntroducer = Introducers[0];
Introducers.RemoveAt(0);
Logging.LogTransport($"SSU RelayRequestState: +{Session.TransportInstance}+ " +
$"Trying introducer '{CurrentIntroducer.EndPoint}' next.");
Retries = 0;
}
}
SendRelayRequest();
});
return(this);
}
internal void IntroductionRelayOffered(IntroducerInfo intro)
{
if (!RouterContext.Inst.IsFirewalled)
{
if (CurrentIntroducers.Count() == 0)
{
MyRouterContext.NoIntroducers();
}
return;
}
if (CurrentIntroducers.Count() >= 3)
{
return;
}
CurrentIntroducers.Set(intro.Host, intro);
MyRouterContext.SetIntroducers(CurrentIntroducers.Select(i => i.Value));
}
internal void IntroductionRelayOffered(IntroducerInfo intro)
{
if (!RouterContext.Inst.IsFirewalled)
{
if (!CurrentIntroducers.Any())
{
MyRouterContext.NoIntroducers();
}
return;
}
if (CurrentIntroducers.Count() >= 5)
{
return;
}
Logging.LogTransport($"SSU Introduction: Added introducer {intro.Host}, {intro.IntroKey}, {intro.IntroTag}, {intro.EndPoint}");
CurrentIntroducers.Set(intro.Host, intro);
MyRouterContext.SetIntroducers(CurrentIntroducers.Select(i => i.Value));
}
public void Connect()
{
// This instance was initiated as an incomming connection.
// Do not change state as we might be in a handshake.
if (IntroKey == null)
{
return;
}
if (ConnectCalled)
{
return;
}
ConnectCalled = true;
// TODO: Add introducer request
if (!RemoteAddr.Options.Contains("host") || !RemoteAddr.Options.Contains("port"))
{
#if LOG_ALL_TRANSPORT
DebugUtils.LogDebug("SSUSession: Connect " + DebugId + ": No host info. Trying introducers.");
#endif
if (!RemoteAddr.Options.Contains("ihost0") || !RemoteAddr.Options.Contains("iport0") || !RemoteAddr.Options.Contains("ikey0"))
{
#if LOG_ALL_TRANSPORT
DebugUtils.LogDebug("SSUSession: Connect +" + TransportInstance.ToString() + "+: No introducers declared.");
#endif
throw new FailedToConnectException("SSU Introducer required, but no introducer information available");
}
var introducers = new List <IntroducerInfo>();
for (int i = 0; i < 3; ++i)
{
if (!RemoteAddr.Options.Contains($"ihost{i}"))
{
break;
}
if (!RemoteAddr.Options.Contains($"iport{i}"))
{
break;
}
if (!RemoteAddr.Options.Contains($"ikey{i}"))
{
break;
}
if (!RemoteAddr.Options.Contains($"itag{i}"))
{
DebugUtils.LogWarning(
$"SSUSession: Connect +{TransportInstance}+: itag# not present! {RemoteAddr.Options}");
break;
}
if (!RemoteAddr.Options[$"ihost{i}"].Contains('.'))
{
break; // TODO: Support IPV6
}
//DebugUtils.LogWarning( "SSUSession: Connect " + DebugId + ": " + RemoteAddr.Options.ToString() );
var intro = new IntroducerInfo(RemoteAddr.Options[$"ihost{i}"],
RemoteAddr.Options[$"iport{i}"],
RemoteAddr.Options[$"ikey{i}"],
RemoteAddr.Options[$"itag{i}"]);
#if LOG_ALL_TRANSPORT
DebugUtils.LogDebug("SSUSession: Connect +" + TransportInstance.ToString() + "+: Adding introducer '" +
intro.EndPoint.ToString() + "'.");
#endif
introducers.Add(intro);
}
if (introducers.Count == 0)
{
#if LOG_ALL_TRANSPORT
DebugUtils.LogDebug("SSUSession: Connect +" + TransportInstance.ToString() + "+: Ended up with no introducers.");
#endif
throw new FailedToConnectException("SSU Introducer required, but no valid introducer information available");
}
CurrentState = new RelayRequestState(this, introducers);
}
else
{
CurrentState = new SessionRequestState(this);
}
Host.NeedCpu(this);
}
