private RequestDelegate BuildBranch()
{
_logger.LogDebug("Building branch map");
IApplicationBuilder branchApp = _app.New();
foreach (Type serviceType in _serviceBuilder.Services)
{
System.Collections.Generic.List <IServiceDispatcher> dispatchers = _dispatcherBuilder.BuildDispatchers(serviceType);
foreach (IServiceDispatcher dispatcher in dispatchers)
{
if (dispatcher.BaseAddress == null)
{
// TODO: Should we throw? Ignore?
continue;
}
if (!(dispatcher.Binding is CustomBinding binding))
{
binding = new CustomBinding(dispatcher.Binding);
}
if (binding.Elements.Find <HttpTransportBindingElement>() == null)
{
_logger.LogDebug($"Binding for address {dispatcher.BaseAddress} is not an HTTP[S] binding ao skipping");
continue; // Not an HTTP(S) dispatcher
}
var parameters = new BindingParameterCollection
{
_app
};
Type supportedChannelType = null;
IServiceDispatcher serviceDispatcher = null;
System.Collections.Generic.IList <Type> supportedChannels = dispatcher.SupportedChannelTypes;
for (int i = 0; i < supportedChannels.Count; i++)
{
Type channelType = supportedChannels[i];
if (channelType == typeof(IInputChannel))
{
if (binding.CanBuildServiceDispatcher <IInputChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IInputChannel>(parameters, dispatcher);
supportedChannelType = typeof(IInputChannel);
break;
}
}
if (channelType == typeof(IReplyChannel))
{
if (binding.CanBuildServiceDispatcher <IReplyChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IReplyChannel>(parameters, dispatcher);
supportedChannelType = typeof(IReplyChannel);
}
}
if (channelType == typeof(IDuplexChannel))
{
if (binding.CanBuildServiceDispatcher <IDuplexChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IDuplexChannel>(parameters, dispatcher);
supportedChannelType = typeof(IDuplexChannel);
}
}
if (channelType == typeof(IInputSessionChannel))
{
if (binding.CanBuildServiceDispatcher <IInputSessionChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IInputSessionChannel>(parameters, dispatcher);
supportedChannelType = typeof(IInputSessionChannel);
}
}
if (channelType == typeof(IReplySessionChannel))
{
if (binding.CanBuildServiceDispatcher <IReplySessionChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IReplySessionChannel>(parameters, dispatcher);
supportedChannelType = typeof(IReplySessionChannel);
}
}
if (channelType == typeof(IDuplexSessionChannel))
{
if (binding.CanBuildServiceDispatcher <IDuplexSessionChannel>(parameters))
{
serviceDispatcher = binding.BuildServiceDispatcher <IDuplexSessionChannel>(parameters, dispatcher);
supportedChannelType = typeof(IDuplexSessionChannel);
}
}
}
_logger.LogInformation($"Mapping CoreWCF branch app for path {dispatcher.BaseAddress.AbsolutePath}");
branchApp.Map(dispatcher.BaseAddress.AbsolutePath, wcfApp =>
{
IServiceScopeFactory servicesScopeFactory = wcfApp.ApplicationServices.GetRequiredService <IServiceScopeFactory>();
var requestHandler = new RequestDelegateHandler(serviceDispatcher, servicesScopeFactory);
if (requestHandler.WebSocketOptions != null)
{
wcfApp.UseWebSockets(requestHandler.WebSocketOptions);
}
wcfApp.Run(requestHandler.HandleRequest);
});
}
}
branchApp.Use(_ => { return(reqContext => _next(reqContext)); });
return(branchApp.Build());
}
private RequestDelegate BuildBranch(IApplicationBuilder app, IServiceBuilder serviceBuilder, IDispatcherBuilder dispatcherBuilder)
{
var branchApp = app.New();
var serverAddresses = app.ServerFeatures.Get <IServerAddressesFeature>();
foreach (var address in serverAddresses.Addresses)
{
serviceBuilder.BaseAddresses.Add(new Uri(address));
}
foreach (var serviceType in serviceBuilder.Services)
{
var dispatchers = dispatcherBuilder.BuildDispatchers(serviceType);
foreach (var dispatcher in dispatchers)
{
if (dispatcher.BaseAddress == null)
{
// TODO: Should we throw? Ignore?
continue;
}
var scheme = dispatcher.BaseAddress?.Scheme;
if (!"http".Equals(scheme, StringComparison.OrdinalIgnoreCase) &&
!"https".Equals(scheme, StringComparison.OrdinalIgnoreCase))
{
continue; // Not an HTTP(S) dispatcher
}
bool matching = false;
foreach (var serverAddress in serverAddresses.Addresses)
{
// TODO: Might not be necessary to compare paths
var serverUri = new Uri(serverAddress);
var serverAddressNormalized = string.Join(":",
serverUri.GetComponents(UriComponents.Port | UriComponents.Path, UriFormat.SafeUnescaped));
var dispatcherAddressNormalized = string.Join(":",
dispatcher.BaseAddress.GetComponents(UriComponents.Port | UriComponents.Path, UriFormat.SafeUnescaped));
if (dispatcherAddressNormalized.StartsWith(serverAddressNormalized, StringComparison.OrdinalIgnoreCase))
{
matching = true;
break; // Dispatcher address is based on server listening address;
}
}
if (matching)
{
branchApp.Map(dispatcher.BaseAddress.AbsolutePath, wcfApp =>
{
var servicesScopeFactory = wcfApp.ApplicationServices.GetRequiredService <IServiceScopeFactory>();
var requestHandler = new RequestDelegateHandler(dispatcher, servicesScopeFactory);
if (requestHandler.WebSocketOptions != null)
{
wcfApp.UseWebSockets(requestHandler.WebSocketOptions);
}
wcfApp.Run(requestHandler.HandleRequest);
});
}
}
}
branchApp.Use(_ => { return(context => _next(context)); });
return(branchApp.Build());
}
