internal void Complete(HttpListenerContext context, bool synch)
{
if (_forward != null)
{
_forward.Complete(context, synch);
return;
}
_synch = synch;
_context = context;
lock (_locker)
{
bool authFailure = false;
try
{
context.AuthenticationSchemes = context._listener.SelectAuthenticationScheme(context);
}
catch (OutOfMemoryException oom)
{
context.AuthenticationSchemes = AuthenticationSchemes.Anonymous;
_exception = oom;
}
catch
{
authFailure = true;
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
}
if (context.AuthenticationSchemes != AuthenticationSchemes.None &&
(context.AuthenticationSchemes & AuthenticationSchemes.Anonymous) != AuthenticationSchemes.Anonymous &&
(context.AuthenticationSchemes & AuthenticationSchemes.Basic) != AuthenticationSchemes.Basic)
{
authFailure = true;
context.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
}
else if (context.AuthenticationSchemes == AuthenticationSchemes.Basic)
{
HttpStatusCode errorCode = HttpStatusCode.Unauthorized;
string authHeader = context.Request.Headers["Authorization"];
if (authHeader == null ||
!HttpListenerContext.IsBasicHeader(authHeader) ||
authHeader.Length < AuthenticationTypes.Basic.Length + 2 ||
!HttpListenerContext.TryParseBasicAuth(authHeader.Substring(AuthenticationTypes.Basic.Length + 1), out errorCode, out string _, out string __))
{
authFailure = true;
context.Response.StatusCode = (int)errorCode;
if (errorCode == HttpStatusCode.Unauthorized)
{
context.Response.Headers["WWW-Authenticate"] = context.AuthenticationSchemes + " realm=\"" + context._listener.Realm + "\"";
}
}
}
if (authFailure)
{
context.Response.OutputStream.Close();
IAsyncResult ares = context._listener.BeginGetContext(_cb, _state);
_forward = (ListenerAsyncResult)ares;
lock (_forward._locker)
{
if (_handle != null)
{
_forward._handle = _handle;
}
}
ListenerAsyncResult next = _forward;
for (int i = 0; next._forward != null; i++)
{
if (i > 20)
{
Complete(new HttpListenerException((int)HttpStatusCode.Unauthorized, SR.net_listener_auth_errors));
}
next = next._forward;
}
}
else
{
_completed = true;
_synch = false;
if (_handle != null)
{
_handle.Set();
}
if (_cb != null)
{
ThreadPool.UnsafeQueueUserWorkItem(s_invokeCB, this);
}
}
}
}
