SMTSP 1.0.13

SMTSP - Send Me That Shit Protocol

Very work in progress. Shouldn't be used in production just jet.

Available on NuGet.

The SMTS-Protocol is what powers InterShare. It allows us to send data between devices in a very high level way. So we don't have to care how data is transferred. This protocol includes a discovery-service, which is used to discover nearby devices, and the actual transfer-service to send the data to the desired peripheral.

Examples

Discovering devices:

var myDevice = new DeviceInfo(
  deviceId: "EE27A6ED-6F30-4299-A35F-AC3B7139F733",
  deviceName: "My Device",
  port: 42013,
  deviceType: DeviceTypes.Phone,
  ipAddress: "192.168.1.42",
  capabilities: new[] { "InterShare" }
);

var discovery = new DeviceDiscovery(myDevice);
disocvery.StartDiscovering();
discovery.DiscoveredDevices.CollectionChanged += (sender, args) =>
{
    // Some device was discovered.
};

Advertise a device:

var discovery = new DeviceDiscovery(myDevice);
discovery.Advertise();

Sending a file:

FileStream file = File.OpenRead("file.txt");

var content = new SmtspFileContent
{
    FileName = "SomeFile.txt",
    DataStream = file
};

await SmtspSender.Send(_receiver, content, _sender);

Receiving a file:

var receiver = new SmtspReceiver();
receiver.StartReceiving();
receiver.RegisterTransferRequestCallback((TransferRequest request) => Task.FromResult(true));
receiver.OnContentReceive += (sender, content) =>
{
    FileStream stream = File.OpenWrite("File.txt");
    content.DataStream?.CopyTo(stream);
};

Discovery

To increase the chance of discovering devices, SMTSP uses multiple technologies to advertise and discover peripherals. <br /> The first method uses UDP Broadcasts to send out lookup signals and listen for responses. The second method uses MDNS-Service Discovery.

Transfer

To transfer the data, the current implementation only uses a TCP Socket. Future plans also include a Bluetooth discovery and transfer.