add an in-progress python controller to test controlport

svn:r2701

contrib/tor-control.py

+#!/usr/bin/python2
+#$Id$
+
+import socket
+import struct
+import sys
+
+MSG_TYPE_SETCONF = 0x0002
+MSG_TYPE_GETCONF = 0x0003
+MSG_TYPE_AUTH    = 0x0007
+
+def parseHostAndPort(h):
+    host, port = "localhost", 9050
+    if ":" in h:
+        i = h.index(":")
+        host = h[:i]
+        try:
+            port = int(h[i+1:])
+        except ValueError:
+            print "Bad hostname %r"%h
+            sys.exit(1)
+    elif h:
+        try:
+            port = int(h)
+        except ValueError:
+            host = h
+
+    return host, port
+
+def receive_message(s):
+  body = ""
+  header = s.recv(4)
+  length,type = struct.unpack("!HH",header)
+  print "Got response length %d, type %d"%(length,type)
+  if length:
+    body = s.recv(length)
+  print "Got response length %d, type %d, body %s"%(length,type,body)
+  return length,type,body
+
+def pack_message(type, body=""):
+  length = len(body)
+  reqheader = struct.pack("!HH", length, type)
+  return "%s%s"%(reqheader,body)
+
+def authenticate(s):
+  s.sendall(pack_message(MSG_TYPE_AUTH))
+  length,type,body = receive_message(s)
+  return
+
+def get_option(s,name):
+  s.sendall(pack_message(MSG_TYPE_GETCONF,name))
+  length,type,body = receive_message(s)
+  return
+
+def do_main_loop(host,port):
+  print "host is %s:%d"%(host,port)
+  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+  s.connect((host,port))
+  authenticate(s)
+  get_option(s,"nickname")
+#  get_option(s,"DirFetchPostPeriod\n")
+
+  return
+
+if __name__ == '__main__':
+  if len(sys.argv) != 2:
+    print "Syntax: tor-control.py torhost:torport"
+    sys.exit(0)
+  sh,sp = parseHostAndPort(sys.argv[1])
+  do_main_loop(sh,sp)
+