private OCStackApplicationResult OnObserveCallback(IntPtr context, IntPtr handle, OCClientResponse clientResponse)
{
var payload = clientResponse.payload == IntPtr.Zero ? null : new RepPayload(clientResponse.payload);
OnObserve?.Invoke(this, new ResourceObservationEventArgs(new DeviceAddress(clientResponse.devAddr), clientResponse.resourceUri, payload));
return(OCStackApplicationResult.OC_STACK_KEEP_TRANSACTION);
}
private void Adapter_OnObserve(object sender, ObserveMessageEventArgs e)
{
MessageAuditRecord record = null;
int length = 0;
DateTime sendTime = DateTime.UtcNow;
try
{
byte[] message = ProtocolTransition.ConvertToHttp(e.Message);
Send(message).LogExceptions();
OnObserve?.Invoke(this,
new ChannelObserverEventArgs(Channel.Id, e.Message.ResourceUri, e.Message.ContentType,
e.Message.Message));
length = message.Length;
record = new MessageAuditRecord(e.Message.MessageId, identity, Channel.TypeId, "WSN", length,
MessageDirectionType.Out, true, sendTime);
}
catch (Exception ex)
{
string msg = string.Format("{0} - WSN adapter observe error on channel '{1}' with '{2}'",
DateTime.UtcNow.ToString("yyyy-MM-ddTHH-MM-ss.fffff"), Channel.Id, ex.Message);
logger?.LogError(ex, $"WSN adapter observe error on channel '{Channel.Id}'.");
record = new MessageAuditRecord(e.Message.MessageId, identity, Channel.TypeId, "WSN", length,
MessageDirectionType.Out, true, sendTime, msg);
}
finally
{
if (e.Message.Audit)
{
messageAuditor?.WriteAuditRecordAsync(record).Ignore();
}
}
}
private void Observer_OnNotify(object sender, MessageNotificationArgs e)
{
//observeCount++;
//Trace.TraceInformation("Obsever {0}", observeCount);
//signal the protocol adapter
OnObserve?.Invoke(this, new ObserveMessageEventArgs(e.Message));
}
private void Adapter_OnObserve(object sender, ObserveMessageEventArgs e)
{
logger?.LogDebugAsync("REST adapter received observed message");
OnObserve?.Invoke(this, new ChannelObserverEventArgs(channel.Id, e.Message.ResourceUri, e.Message.ContentType, e.Message.Message));
AuditRecord record = new UserAuditRecord(channel.Id, identity, DateTime.UtcNow);
userAuditor?.UpdateAuditRecordAsync(record).Ignore();
AuditRecord messageRecord = new MessageAuditRecord(e.Message.MessageId, identity, channel.TypeId, protocolType.ToString(), e.Message.Message.Length, MessageDirectionType.Out, true, DateTime.UtcNow);
messageAuditor?.WriteAuditRecordAsync(messageRecord);
}
private void Channel_OnReceive(object sender, ChannelReceivedEventArgs e)
{
try
{
MqttMessage msg = MqttMessage.DecodeMessage(e.Message);
OnObserve?.Invoke(this, new ChannelObserverEventArgs(Channel.Id, null, null, e.Message));
if (!session.IsAuthenticated)
{
if (!(msg is ConnectMessage message))
{
throw new SecurityException("Connect message not first message");
}
if (session.Authenticate(message.Username, message.Password))
{
IdentityDecoder decoder = new IdentityDecoder(session.Config.IdentityClaimType, context,
session.Config.Indexes);
session.Identity = decoder.Id;
session.Indexes = decoder.Indexes;
adapter.Identity = decoder.Id;
UserAuditRecord record = new UserAuditRecord(Channel.Id, session.Identity,
session.Config.IdentityClaimType, Channel.TypeId, "MQTT", "Granted", DateTime.UtcNow);
userAuditor?.WriteAuditRecordAsync(record).Ignore();
}
else
{
throw new SecurityException("Session could not be authenticated.");
}
}
else if (forcePerReceiveAuthn)
{
if (!session.Authenticate())
{
throw new SecurityException("Per receive authentication failed.");
}
}
ProcessMessageAsync(msg).GetAwaiter();
}
catch (Exception ex)
{
logger?.LogErrorAsync(ex, $"MQTT adapter Channel_OnReceive error on channel '{Channel.Id}'.")
.GetAwaiter();
OnError?.Invoke(this, new ProtocolAdapterErrorEventArgs(Channel.Id, ex));
}
}
private void Channel_OnReceive(object sender, ChannelReceivedEventArgs e)
{
try
{
CoapMessage message = CoapMessage.DecodeMessage(e.Message);
if (!session.IsAuthenticated || forcePerReceiveAuthn)
{
session.EnsureAuthentication(message, forcePerReceiveAuthn);
UserAuditRecord record = new UserAuditRecord(Channel.Id, session.Identity,
session.Config.IdentityClaimType, Channel.TypeId, "COAP", "Granted", DateTime.UtcNow);
userAuditor?.WriteAuditRecordAsync(record).Ignore();
}
OnObserve?.Invoke(this,
new ChannelObserverEventArgs(Channel.Id, message.ResourceUri.ToString(),
MediaTypeConverter.ConvertFromMediaType(message.ContentType), message.Payload));
Task task = Task.Factory.StartNew(async() =>
{
CoapMessageHandler handler = CoapMessageHandler.Create(session, message, dispatcher);
CoapMessage msg = await handler.ProcessAsync();
if (msg != null)
{
byte[] payload = msg.Encode();
await Channel.SendAsync(payload);
}
});
task.LogExceptions();
}
catch (Exception ex)
{
logger?.LogErrorAsync(ex, $"CoAP adapter receiveing on channel '{Channel.Id}'.").GetAwaiter();
OnError?.Invoke(this, new ProtocolAdapterErrorEventArgs(Channel.Id, ex));
Channel.CloseAsync().Ignore();
}
}
/// <summary>
/// On observing an element, pass the element
/// reference to the action(s).
/// </summary>
/// <param name="elementRef">The element to observe</param>
public void Observe(ElementRef elementRef)
{
OnObserve?.Invoke(this.Id, elementRef);
}
private void Adapter_OnObserve(object sender, ObserveMessageEventArgs e)
{
byte[] payload = ProtocolTransition.ConvertToHttp(e.Message);
OnObserve?.Invoke(this, new ChannelObserverEventArgs(e.Message.ResourceUri, e.Message.ContentType, payload));
}
/// <summary>
/// On observing an element, pass the element
/// reference to the action(s).
/// </summary>
/// <param name="elementRef">The element to observe</param>
public async ValueTask Observe(ElementReference elementRef)
{
await(OnObserve.Invoke(this.Id, elementRef));
}