send greeting

FabAccessAPI/Connection.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using Capnp;
+using FabAccessAPI.Schema;
+using S22.Sasl;
+
+namespace FabAccessAPI
+{
+    class Connection
+    {
+        public bool Connect(Greeting clientInfo, Stream stream)
+        {
+            var message = new Message()
+
+            {
+                Greet = clientInfo,
+                which = Message.WHICH.Greet,
+            };
+
+            var msg = MessageBuilder.Create();
+            var root = msg.BuildRoot<Schema.Message.WRITER>();
+            message.serialize(root);
+
+            var pump = new FramePump(stream);
+            pump.Send(msg.Frame);
+
+            var frame = Framing.ReadSegments(stream);
+
+            var deserializer = DeserializerState.CreateRoot(frame);
+            var reader = new Message.READER(deserializer);
+
+            switch (reader.which)
+            {
+                case Message.WHICH.Greet:
+                    var serverInfo = reader.Greet;
+                    Console.WriteLine($"Server: {serverInfo.Host}");
+                    Console.WriteLine($"Version: {serverInfo.Program}");
+                    Console.WriteLine($"API-Version: {serverInfo.Major}.{serverInfo.Minor}");
+                    break;
+                case Message.WHICH.Leave:
+                    var leave_inner = reader.Leave;
+                    switch (leave_inner.TheReason)
+                    {
+                        case Leave.Reason.incompatible:
+                            Console.WriteLine($"Connection aborted due to incompatible API: {leave_inner.Message}");
+                            break;
+                        case Leave.Reason.other:
+                            Console.WriteLine($"Connection aborted: {leave_inner.Message}");
+                            break;
+                        default:
+                            Console.WriteLine($"Got invalid This should never happen: {leave_inner.Message}");
+                            break;
+                    }
+                    return false;
+                default:
+                    Console.WriteLine($"Got unexpected message: {reader.which}");
+                    break;
+
+            }
+
+            //FIXME: Replace the hardcoded credentials
+            SaslMechanism m = SaslFactory.Create("PLAIN");
+            m.Properties.Add("Username", "test");
+            m.Properties.Add("Password", "secret");
+
+            var authRequest = new Request()
+            {
+                Mechanism = m.Name,
+
+            };
+
+            var auth = new AuthMessage()
+            {
+
+            };
+
+            return true;
+        }
+
+    }
+}