/**
* Static "constructors"
*/
public static SPPMessage DecodeMessage(byte[] raw)
{
try
{
SPPMessage draft = new SPPMessage();
if (raw.Length < 6)
{
SentrySdk.AddBreadcrumb($"Message too small (Length: {raw.Length})", "spp",
level: BreadcrumbLevel.Warning);
Log.Error($"Message too small (Length: {raw.Length})");
throw new InvalidPacketException(InvalidPacketException.ErrorCodes.TooSmall, Loc.Resolve("sppmsg_too_small"));
}
if ((raw[0] != (byte)Constants.SOM &&
BluetoothImpl.Instance.ActiveModel == Models.Buds) ||
(raw[0] != (byte)Constants.SOMPlus &&
BluetoothImpl.Instance.ActiveModel != Models.Buds))
{
SentrySdk.AddBreadcrumb($"Invalid SOM (Received: {raw[0]})", "spp",
level: BreadcrumbLevel.Warning);
Log.Error($"Invalid SOM (Received: {raw[0]})");
throw new InvalidPacketException(InvalidPacketException.ErrorCodes.SOM, Loc.Resolve("sppmsg_invalid_som"));
}
draft.Id = (MessageIds)Convert.ToInt32(raw[3]);
int size;
if (BluetoothImpl.Instance.ActiveModel != Models.Buds)
{
var p1 = (raw[2] << 8);
var p2 = raw[1] & 255;
var header = p1 + p2;
draft.IsFragment = (header & 8192) != 0;
draft.Type = (header & 4096) != 0 ? MsgType.Request : MsgType.Response;
size = header & 1023;
}
else
{
draft.Type = (MsgType)Convert.ToInt32(raw[1]);
size = Convert.ToInt32(raw[2]);
}
//Subtract Id and CRC from size
var rawPayloadSize = size - 3;
byte[] payload = new byte[rawPayloadSize];
byte[] crcData = new byte[size];
crcData[0] = raw[3]; //Msg ID
for (var i = 0; i < rawPayloadSize; i++)
{
//Start to read at byte 4
payload[i] = raw[i + 4];
crcData[i + 1] = raw[i + 4];
}
var crc1 = raw[4 + rawPayloadSize];
var crc2 = raw[4 + rawPayloadSize + 1];
crcData[^ 2] = crc2;
public void MessageReceiver(object?sender, SPPMessage e)
{
Dispatcher.UIThread.InvokeAsync(() =>
{
BaseMessageParser?parser = SPPMessageParserFactory.BuildParser(e);
DispatchEvent(parser, e.Id);
}, DispatcherPriority.DataBind);
}
public static BaseMessageParser?BuildParser(SPPMessage msg)
{
BaseMessageParser?b = null;
for (int i = 0; i < RegisteredParsers.Length; i++)
{
var act = Activator.CreateInstance(RegisteredParsers[i]);
if (act?.GetType() == RegisteredParsers[i])
{
BaseMessageParser parser = (BaseMessageParser)act;
if (parser.HandledType == msg.Id)
{
SentrySdk.ConfigureScope(scope =>
{
scope.SetTag("msg-data-available", "true");
scope.SetExtra("msg-type", msg.Type.ToString());
scope.SetExtra("msg-id", msg.Id);
scope.SetExtra("msg-size", msg.Size);
scope.SetExtra("msg-total-size", msg.TotalPacketSize);
scope.SetExtra("msg-crc16", msg.Crc16);
scope.SetExtra("msg-payload", HexUtils.Dump(msg.Payload, 512, false, false, false));
});
parser.ParseMessage(msg);
b = parser;
break;
}
}
}
if (b != null)
{
foreach (var hook in ScriptManager.Instance.DecoderHooks)
{
hook?.OnDecoderCreated(msg, ref b);
}
}
return(b);
}
private async void OnMessageReceived(object?sender, SPPMessage e)
{
switch (e.Id)
{
#region SESSION
case SPPMessage.MessageIds.LOG_SESSION_OPEN:
_hasCompletedRoleSwitch = false;
if (e.Payload[0] == 0)
{
await BluetoothImpl.Instance.SendRequestAsync(SPPMessage.MessageIds.LOG_TRACE_START, 0);
}
break;
case SPPMessage.MessageIds.LOG_SESSION_CLOSE:
break;
#endregion
#region TRACE
case SPPMessage.MessageIds.LOG_TRACE_START:
_traceContext = e.BuildParser() as LogTraceStartParser;
_traceBuffer = new byte[_traceContext !.DataSize];