private static InformationContext CreateWithID(int id)
{
InformationContext result = InformationContext.Create();
result.ID = id;
return(result);
}
public static void ProcessMessage(QueueEnvelope envelope, bool reportEnvelopeError = true)
{
try
{
InformationContext.Current.InitializeCloudStorageAccess(envelope.ActiveContainerName);
if (envelope.SingleOperation != null)
{
ProcessSingleOperation(envelope.SingleOperation);
}
if (envelope.OrderDependentOperationSequence != null)
{
Exception firstException = null;
//envelope.OrderDependentOperationSequence.CollectionContent.ForEach(ProcessSingleOperation);
foreach (var singleOperation in envelope.OrderDependentOperationSequence.CollectionContent)
{
try
{
ProcessSingleOperation(singleOperation);
} catch (Exception ex)
{
firstException = ex;
ErrorSupport.ReportException(ex);
}
}
if (firstException != null)
{
throw firstException;
}
}
}
catch (Exception ex)
{
if (reportEnvelopeError)
{
ErrorSupport.ReportEnvelopeWithException(envelope, ex);
}
throw;
} finally
{
InformationContext.ProcessAndClearCurrent();
}
counter++;
if (counter >= 1000)
{
QueueSupport.ReportStatistics("Processed " + counter + " messages...");
counter = 0;
}
}
public static bool ProcessOwnerSubscriptionChains(IContainerOwner lockedOwner, string acquiredEtag, string containerName)
{
try
{
if (containerName != null)
{
InformationContext.Current.InitializeCloudStorageAccess(containerName: containerName);
}
string[] blobs = SubscribeSupport.GetChainRequestList(lockedOwner);
var chainContent = blobs.Select(blob => StorageSupport.RetrieveInformation(blob, typeof(SubscriptionChainRequestContent))).Cast <SubscriptionChainRequestContent>().ToArray();
const double invalidSubscriptionSubmissionTimeInSeconds = 600;
if (chainContent.Any(item => item.SubmitTime < DateTime.UtcNow.AddSeconds(-invalidSubscriptionSubmissionTimeInSeconds)))
{
return(false);
}
WorkerSupport.ExecuteSubscriptionChains(chainContent);
foreach (string blob in blobs)
{
StorageSupport.DeleteBlob(blob);
}
}
catch (Exception ex)
{
ErrorSupport.ReportException(ex);
throw;
}
finally
{
SubscribeSupport.ReleaseChainLock(lockedOwner, acquiredEtag);
if (containerName != null)
{
InformationContext.ProcessAndClearCurrent();
}
}
counter++;
if (counter >= 1000)
{
QueueSupport.ReportStatistics("Processed " + counter + " messages...");
counter = 0;
}
return(true);
}
private static string FinishDeviceNegotiation(InformationContext iCtx, INegotiationProtocolMember protocolParty, string remainingDetails)
{
try
{
var result = CreateDeviceMembership.Execute(new CreateDeviceMembershipParameters
{
Owner = iCtx.Owner,
ActiveSymmetricAESKey = protocolParty.NegotiationResults[0],
DeviceDescription = remainingDetails
});
CreateAndSendEmailValidationForDeviceJoinConfirmation.Execute(new CreateAndSendEmailValidationForDeviceJoinConfirmationParameters
{
DeviceMembership = result.DeviceMembership,
OwningAccount = iCtx.Owner as TBAccount,
OwningGroup = iCtx.Owner as TBCollaboratingGroup,
});
return result.DeviceMembership.ID;
}
finally
{
iCtx.PerformFinalizingActions();
}
}
private async static Task HandleDeviceNegotiations(InformationContext iCtx, WebSocketContext wsCtx, WebSocket socket, byte[] binaryMessage, string textMessage)
{
if(iCtx != InformationContext.Current)
throw new InvalidDataException("InformationContext is mismatched during processing");
bool playBob = false;
INegotiationProtocolMember protocolParty = null;
if (binaryMessage != null)
{
iCtx.AccessLockedItems(dict =>
{
if (dict.ContainsKey("EKENEGOTIATIONPARTY") == false)
{
// Yes, the shared secret is fixed due to demo. We're fixing it to be separately requested or given by user... :-)
TheBallEKE protocolInstance = new TheBallEKE();
var decryptedSharedSecretPayload = EncryptionSupport.DecryptData(binaryMessage);
var nonse = decryptedSharedSecretPayload.Take(32).ToArray();
var secret = decryptedSharedSecretPayload.Skip(32).Take(32).ToArray();
long ticks = BitConverter.ToInt64(decryptedSharedSecretPayload, 64);
DateTime validUntilUtc = new DateTime(ticks, DateTimeKind.Utc);
if(DateTime.UtcNow > validUntilUtc)
throw new SecurityException("Shared secret payload is expired");
protocolInstance.InitiateCurrentSymmetricFromSecret(secret);
if(playBob)
protocolParty = new TheBallEKE.EKEBob(protocolInstance, true);
else
protocolParty = new TheBallEKE.EKEAlice(protocolInstance, true);
dict.Add("EKENEGOTIATIONPARTY", protocolParty);
}
else
{
protocolParty = (INegotiationProtocolMember)dict["EKENEGOTIATIONPARTY"];
}
});
if (protocolParty.SendMessageToOtherPartyAsync == null)
{
protocolParty.SendMessageToOtherPartyAsync = async bytes => { await SendBinaryMessage(socket, bytes); };
if(playBob) // if we play bob we put the current message already to the pipeline
protocolParty.LatestMessageFromOtherParty = binaryMessage;
}
else
{
// Alice plays first, so only after the second message we start putting messages from Bob
protocolParty.LatestMessageFromOtherParty = binaryMessage;
}
while (protocolParty.IsDoneWithProtocol == false && protocolParty.WaitForOtherParty == false)
{
await protocolParty.PerformNextActionAsync();
}
}
else
{
iCtx.AccessLockedItems(dict =>
{
if (dict.ContainsKey("EKENEGOTIATIONPARTY"))
protocolParty = (INegotiationProtocolMember) dict["EKENEGOTIATIONPARTY"];
});
if (protocolParty != null && protocolParty.IsDoneWithProtocol) // Perform POST EKE operations
{
iCtx.AccessLockedItems(dict => dict.Remove("EKENEGOTIATIONPARTY"));
string deviceID = FinishDeviceNegotiation(iCtx, protocolParty, textMessage);
await SendTextMessage(socket, deviceID);
}
//await SendTextMessage(socket, echoString);
}
}