private async void HandleMethodCall(Message methodCall, IMessageStream peer)
{
switch (methodCall.Header.Interface)
{
case "org.freedesktop.DBus.Peer":
switch (methodCall.Header.Member)
{
case "Ping":
{
SendMessage(MessageHelper.ConstructReply(methodCall), peer);
return;
}
case "GetMachineId":
{
SendMessage(MessageHelper.ConstructReply(methodCall, Environment.MachineId), peer);
return;
}
}
break;
}
MethodHandler methodHandler;
if (_methodHandlers.TryGetValue(methodCall.Header.Path.Value, out methodHandler))
{
var reply = await methodHandler(methodCall);
reply.Header.ReplySerial = methodCall.Header.Serial;
reply.Header.Destination = methodCall.Header.Sender;
SendMessage(reply, peer);
}
else
{
if (methodCall.Header.Interface == "org.freedesktop.DBus.Introspectable" &&
methodCall.Header.Member == "Introspect" &&
methodCall.Header.Path.HasValue)
{
var path = methodCall.Header.Path.Value;
var childNames = GetChildNames(path);
if (childNames.Length > 0)
{
var writer = new IntrospectionWriter();
writer.WriteDocType();
writer.WriteNodeStart(path.Value);
foreach (var child in childNames)
{
writer.WriteChildNode(child);
}
writer.WriteNodeEnd();
var xml = writer.ToString();
SendMessage(MessageHelper.ConstructReply(methodCall, xml), peer);
}
}
SendUnknownMethodError(methodCall, peer);
}
}
async void HandleMethodCall(Message methodCall, IMessageStream peer)
{
bool pathKnown = false;
IMethodHandler methodHandler = null;
if (methodCall.Header.Path.HasValue && !string.IsNullOrEmpty(methodCall.Header.Interface))
{
var pathHandler = PartHandlerForPath(methodCall.Header.Path.Value);
if (pathHandler != null)
{
pathKnown = true;
if (!pathHandler.InterfaceHandlers.TryGetValue(methodCall.Header.Interface, out methodHandler))
{
methodHandler = GlobalInterfaceHandlers.GetValueOrDefault(methodCall.Header.Interface);
}
if (methodHandler != null && !methodHandler.CheckExposure(methodCall.Header.Path.Value))
{
methodHandler = null;
}
}
}
if (methodHandler != null)
{
var reply = await methodHandler.HandleMethodCall(methodCall);
if (reply != null)
{
reply.Header.ReplySerial = methodCall.Header.Serial;
reply.Header.Destination = methodCall.Header.Sender;
SendMessage(reply, peer);
}
else if (methodCall.Header.ReplyExpected)
{
SendMessage(MessageHelper.ConstructReply(methodCall), peer);
}
}
else if (methodCall.Header.ReplyExpected)
{
if (!pathKnown)
{
SendErrorReply(methodCall, DBusErrors.UnknownObject, $"No objects at path {methodCall.Header.Path}", peer);
}
else
{
SendErrorReply(methodCall, DBusErrors.UnknownInterface, $"No interface {methodCall.Header.Interface} at path {methodCall.Header.Path}", peer);
}
}
}
