public async Task HandleInConnection(InConnection inc, IConnectionHandler outAdapter)
{
try {
if (outAdapter == null)
{
warning($"'{inc.InAdapter.Name}' {inc} -> (no out adapter)");
return;
}
onConnectionBegin(inc, outAdapter);
int redirectCount = 0;
while (true)
{
inc.RunningHandler = outAdapter;
if (outAdapter is IConnectionHandler2 ich2)
{
await ich2.HandleConnection(inc).CAF();
}
else if (inc is InConnectionTcp tcp)
{
await outAdapter.HandleTcpConnection(tcp).CAF();
}
else
{
throw new Exception($"'{outAdapter.Name}' cannot handle this type of connection.");
}
if (inc.IsHandled || !inc.IsRedirected)
{
break;
}
if (++redirectCount >= 10)
{
error($"'{inc.InAdapter.Name}' {inc} too many redirects, last redirect: {outAdapter.Name}");
return;
}
var nextAdapter = inc.Redirected?.Adapter as IConnectionHandler;
if (nextAdapter == null)
{
warning($"'{inc.InAdapter.Name}' {inc} was redirected by '{outAdapter.Name}'" +
$" to '{inc.Redirected}' which can not be found.");
return;
}
outAdapter = nextAdapter;
if (LoggingLevel <= Logging.Level.None)
{
debug($"'{inc.InAdapter.Name}' {inc} was redirected to '{inc.Redirected}'");
}
inc.Redirected = null;
}
} catch (Exception e) {
await onConnectionException(inc, e).CAF();
} finally {
await onConnectionEnd(inc).CAF();
}
}
public static Task <ConnectResult> ConnectWrapper(IConnectionHandler handler, ConnectArgument arg)
{
var tcs = new TaskCompletionSource <ConnectResult>();
var newinc = InConnectionTcp.Create(arg.InAdapter, arg.Dest, async(r) => {
if (r.Ok)
{
var stream = new LoopbackStream();
r.Stream = stream;
tcs.SetResult(r);
return(stream.Another);
}
else
{
tcs.SetResult(r);
return(null);
}
});
newinc.Url = arg.Url;
newinc.DestOriginalName = arg.DestOriginalName;
NaiveUtils.RunAsyncTask(async() => {
try {
await handler.HandleTcpConnection(newinc).CAF();
} catch (Exception e) {
tcs.SetException(e);
return;
}
if (newinc.IsRedirected && tcs.Task.IsCompleted == false)
{
tcs.SetResult(ConnectResult.RedirectTo(handler, newinc.Redirected));
}
else
{
tcs.SetException(new Exception("handleConnection() did nothing."));
}
});
return(tcs.Task);
}