Node works with ad hoc protocol for both CAS and NS naive

remote_log/README.md

@@ -49,3 +49,24 @@ Supports two operations:
 
 - `Upload data => id`
 - `Fetch id => data`
+
+
+## Sketching interface
+
+NS POST <>
+NS GET <>
+
+CAS POST <>
+CAS GET <>
+
+What's in <>?
+
+- hash string
+- blob
+- [[h1_3, h2_3], [h1_2, h2_2]], next_page_chunk]
+
+- How do we want to encode this?
+- Or we can use protobuf or json
+- This seems mostly relevant for ns_head
+
+- lets just start with json thingy and NS/CAS sep

remote_log/src/node.nim

@@ -1,35 +1,79 @@
-import net, os, threadpool, asyncdispatch, asyncnet
+import net, os, threadpool, asyncdispatch, asyncnet, strutils
 
-var socket = newAsyncSocket()
+var socket1 = newAsyncSocket()
+var socket2 = newAsyncSocket()
 
 proc handler() {.noconv.} =
   stdout.writeLine("Shutting down connection.")
-  socket.close()
+  socket1.close()
+  socket2.close()
   quit 0
 
 setControlCHook(handler)
 
-proc connect(socket: AsyncSocket, serverAddr: string) {.async.} =
-  echo("Connecting to ", serverAddr)
-  await socket.connect(serverAddr, 6001.Port)
-  echo("Connected!")
+proc isNSMessage(message: string): bool =
+  return message.split(' ')[0] == "NS"
+
+proc isCASMessage(message: string): bool =
+  return message.split(' ')[0] == "CAS"
+
+# XXX: drop first part? or maybe you know, use proper encoding
+# XXX: Crashes if bad too, obv
+proc prepareMessage(message: string): string =
+  var s = ""
+  try:
+    s = message.split(' ')[1] & " :" & message.split(':')[1]
+  except:
+    echo("prepareMessage error ", message)
+    s = "bad msg"
+  return s
+
+assert("NS POST :hi".split(' ')[0] == "NS")
+var test = "NS POST :foo bar"
+assert(test.split(' ')[1] & " :" & test.split(':')[1] == "POST :foo bar")
+assert isNSMessage("NS POST :hi")
+assert prepareMessage("NS POST :foo bar") == "POST :foo bar"
+
+proc connect(socket: AsyncSocket, serverAddr: string, portInt: int) {.async.} =
+  echo("Connecting to ", serverAddr, ":", portInt)
+  await socket.connect(serverAddr, portInt.Port)
+  echo(portInt, ": Connected!")
 
   while true:
     let line = await socket.recvLine()
     # TODO: parse message
-    echo("Incoming: ", line)
+    # TODO: Differentiate between NS and CAS
+    echo(portInt, ": Incoming: ", line)
 
 echo("Node started")
 # TODO: paramCount and paramStr parsing args
 let serverAddr = "localhost"
-asyncCheck connect(socket, serverAddr)
+
+# Connect to NS
+asyncCheck connect(socket1, serverAddr, 6001)
+
+# Connecting to CAS
+asyncCheck connect(socket2, serverAddr, 6002)
+
 var messageFlowVar = spawn stdin.readLine()
 while true:
   if messageFlowVar.isReady():
     # TODO: create message
-    #echo("Sending \"", ^messageFlowVar, "\"")
-    let message = ^messageFlowVar & "\r\L"
-    asyncCheck socket.send(message)
+    # TODO: Differentiate between CAS and NS messages
+    echo("Sending \"", ^messageFlowVar, "\"")
+
+    let prepared = prepareMessage(^messageFlowVar)
+    let message = prepared & "\r\L"
+
+    if isNSMessage(^messageFlowVar):
+      echo("Send NS: ", prepared)
+      asyncCheck socket1.send(message)
+    elif isCASMessage(^messageFlowVar):
+      echo("Send CAS: ", prepared)
+      asyncCheck socket2.send(message)
+    else:
+      echo("Unknown message type ", ^messageFlowVar)
+
     messageFlowVar = spawn stdin.readLine()
 
   asyncdispatch.poll()
@@ -45,3 +89,13 @@ while true:
 # stringify if that's a thing, or JSON
 
 # Consider separating out interactive parts into client.nim
+
+# Send message triggers:
+# Upload to cas => get id
+# Upload to NS
+# So other node can fetch
+
+# Interface here?
+# Two connections
+
+# CAS and NS different how?