Support console exit and dedicated console mode

Have confetty assume that a plain nodename is a requset for console.
If a console session is started from interactive mode, return to
interactive mode on ctrl-e, c, . rather than exiting.

bin/confetty

@@ -36,6 +36,7 @@ import sys
 import termios
 import tty
 
+consoleonly = False
 target = "/"
 path = os.path.dirname(os.path.realpath(__file__))
 path = os.path.realpath(os.path.join(path, '..'))
@@ -83,6 +84,7 @@ def send_request(operation, path, server):
 
 def do_command(command, server):
     global target
+    global currconsole
     global currchildren
     if command == "":  # result of ctrl-d
         command = "exit\n"
@@ -112,6 +114,7 @@ def do_command(command, server):
                     print item["href"]
     if argv[0] == 'start':
         targpath = fullpath_target(argv[1])
+        currconsole = targpath
         tlvdata.send_tlvdata(server, {'operation': 'start', 'path': targpath})
         status = tlvdata.recv_tlvdata(server)
         if 'error' in status:
@@ -151,10 +154,18 @@ def startconsole():
     inconsole = True
 
 def exit(code=0):
+    global consoleonly
+    global inconsole
+    global currconsole
     termios.tcsetattr(sys.stdin.fileno(), termios.TCSANOW, oldtcattr)
-    server.shutdown(socket.SHUT_RDWR)
-    server.close()
-    sys.exit(code)
+    if consoleonly:
+        server.shutdown(socket.SHUT_RDWR)
+        server.close()
+        sys.exit(code)
+    else:
+        tlvdata.send_tlvdata(server, {'operation': 'stop', 'path': currconsole})
+        inconsole = False
+        prompt()
 
 def conserver_command(fh, command):
     while not command:
@@ -249,6 +260,7 @@ doexit = False
 inconsole = False
 pendingcommand = ""
 if len(args) == 1:  # a node name, go straight to trying to console
+    consoleonly = True
     do_command("start /node/%s/console/session" % args[0], server)
 else:
     prompt()
@@ -256,6 +268,10 @@ while not doexit:
     rdylist, _, _ = select.select((sys.stdin, server), (), (), 60)
     for fh in rdylist:
         if fh == server:
+            # this only should get called in the
+            # case of a console session
+            # each command should slurp up all relevant
+            # recv_tlvdata potential
             #fh.read()
             try:
                 data = tlvdata.recv_tlvdata(fh)

confluent/sockapi.py

@@ -105,6 +105,12 @@ def process_request(connection, request, cfm, authdata):
                 ccons.startsending()
                 while consession is not None:
                     data = tlvdata.recv_tlvdata(connection)
+                    if type(data) == dict:
+                        if data['operation'] == 'stop':
+                            consession.destroy()
+                            return
+                        else:
+                            raise Exception("TODO")
                     if not data:
                         consession.destroy()
                         return