diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Demo/pdist/client.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/pdist/client.py Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,157 @@ +"""RPC Client module.""" + +import sys +import socket +import pickle +import __builtin__ +import os + + +# Default verbosity (0 = silent, 1 = print connections, 2 = print requests too) +VERBOSE = 1 + + +class Client: + + """RPC Client class. No need to derive a class -- it's fully generic.""" + + def __init__(self, address, verbose = VERBOSE): + self._pre_init(address, verbose) + self._post_init() + + def _pre_init(self, address, verbose = VERBOSE): + if type(address) == type(0): + address = ('', address) + self._address = address + self._verbose = verbose + if self._verbose: print "Connecting to %s ..." % repr(address) + self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + self._socket.connect(address) + if self._verbose: print "Connected." + self._lastid = 0 # Last id for which a reply has been received + self._nextid = 1 # Id of next request + self._replies = {} # Unprocessed replies + self._rf = self._socket.makefile('r') + self._wf = self._socket.makefile('w') + + def _post_init(self): + self._methods = self._call('.methods') + + def __del__(self): + self._close() + + def _close(self): + if self._rf: self._rf.close() + self._rf = None + if self._wf: self._wf.close() + self._wf = None + if self._socket: self._socket.close() + self._socket = None + + def __getattr__(self, name): + if name in self._methods: + method = _stub(self, name) + setattr(self, name, method) # XXX circular reference + return method + raise AttributeError, name + + def _setverbose(self, verbose): + self._verbose = verbose + + def _call(self, name, *args): + return self._vcall(name, args) + + def _vcall(self, name, args): + return self._recv(self._vsend(name, args)) + + def _send(self, name, *args): + return self._vsend(name, args) + + def _send_noreply(self, name, *args): + return self._vsend(name, args, 0) + + def _vsend_noreply(self, name, args): + return self._vsend(name, args, 0) + + def _vsend(self, name, args, wantreply = 1): + id = self._nextid + self._nextid = id+1 + if not wantreply: id = -id + request = (name, args, id) + if self._verbose > 1: print "sending request: %s" % repr(request) + wp = pickle.Pickler(self._wf) + wp.dump(request) + return id + + def _recv(self, id): + exception, value, rid = self._vrecv(id) + if rid != id: + raise RuntimeError, "request/reply id mismatch: %d/%d" % (id, rid) + if exception is None: + return value + x = exception + if hasattr(__builtin__, exception): + x = getattr(__builtin__, exception) + elif exception in ('posix.error', 'mac.error'): + x = os.error + if x == exception: + exception = x + raise exception, value + + def _vrecv(self, id): + self._flush() + if self._replies.has_key(id): + if self._verbose > 1: print "retrieving previous reply, id = %d" % id + reply = self._replies[id] + del self._replies[id] + return reply + aid = abs(id) + while 1: + if self._verbose > 1: print "waiting for reply, id = %d" % id + rp = pickle.Unpickler(self._rf) + reply = rp.load() + del rp + if self._verbose > 1: print "got reply: %s" % repr(reply) + rid = reply[2] + arid = abs(rid) + if arid == aid: + if self._verbose > 1: print "got it" + return reply + self._replies[rid] = reply + if arid > aid: + if self._verbose > 1: print "got higher id, assume all ok" + return (None, None, id) + + def _flush(self): + self._wf.flush() + + +from security import Security + + +class SecureClient(Client, Security): + + def __init__(self, *args): + import string + apply(self._pre_init, args) + Security.__init__(self) + self._wf.flush() + line = self._rf.readline() + challenge = string.atoi(string.strip(line)) + response = self._encode_challenge(challenge) + line = repr(long(response)) + if line[-1] in 'Ll': line = line[:-1] + self._wf.write(line + '\n') + self._wf.flush() + self._post_init() + +class _stub: + + """Helper class for Client -- each instance serves as a method of the client.""" + + def __init__(self, client, name): + self._client = client + self._name = name + + def __call__(self, *args): + return self._client._vcall(self._name, args)