def __recv(self):
data = self.request.recv(2048)
logger.logDebug('RECV({}): {}'.format(len(data), repr(data)))
if len(data) == 0 and self.request.gettimeout() is None:
raise socket.error(errno.ECONNRESET, os.strerror(errno.ECONNRESET))
if data[0] == '\x04':
raise socket.error(errno.ECONNRESET, os.strerror(errno.ECONNRESET))
self.__buffer += data
return self.__buffer
def preprocess(self, script):
logger.logDebug("preprocess", "Preprocessing: %s" % script)
index = 0
values = {}
objects = {}
specials = {}
while True:
valueref = re_valueref.search(script, index)
objectref = re_objectref.search(script, index)
specialref = re_specialref.search(script, index)
matches = []
if valueref: matches.append((valueref.start(), valueref))
if objectref: matches.append((objectref.start(), objectref))
if specialref: matches.append((specialref.start(), specialref))
if matches:
start, match = min(matches)
if match:
index = match.end()
id = match.group(1)
if match == valueref: values[id] = True
elif match == objectref: objects[id] = True
elif match == specialref: specials[id] = True
continue
break
variables = []
for valueid in values.keys():
variables.append(("$" + valueid, self.__values.get(int(valueid))))
for objectid in objects.keys():
object = ESObject.getByPrintedId(int(objectid))
if object: value = ESValue(ESValue.TYPE_OBJECT, object)
else: value = None
variables.append(("$$" + objectid, value))
if specials:
if specials.has_key("n"): variables.append(("$n", ESValue(ESValue.TYPE_NULL)))
if specials.has_key("u"): variables.append(("$u", ESValue(ESValue.TYPE_UNDEFINED)))
if specials.has_key("t"): variables.append(("$t", ESValue(ESValue.TYPE_BOOLEAN, True)))
if specials.has_key("f"): variables.append(("$f", ESValue(ESValue.TYPE_BOOLEAN, False)))
if specials.has_key("z"): variables.append(("$z", ESValue(ESValue.TYPE_NUMBER, 0)))
if specials.has_key("e"): variables.append(("$e", ESValue(ESValue.TYPE_STRING, "")))
variables.sort()
for name, value in variables:
logger.logDebug("preprocess", "Variable: %s => %s" % (name, value))
return variables
def preprocess(self, script):
logger.logDebug("preprocess", "Preprocessing: %s" % script)
index = 0
values = {}
objects = {}
specials = {}
while True:
valueref = re_valueref.search(script, index)
objectref = re_objectref.search(script, index)
specialref = re_specialref.search(script, index)
matches = []
if valueref: matches.append((valueref.start(), valueref))
if objectref: matches.append((objectref.start(), objectref))
if specialref: matches.append((specialref.start(), specialref))
if matches:
start, match = min(matches)
if match:
index = match.end()
id = match.group(1)
if match == valueref: values[id] = True
elif match == objectref: objects[id] = True
elif match == specialref: specials[id] = True
continue
break
variables = []
for valueid in values.keys():
variables.append(("$" + valueid, self.__values.get(int(valueid))))
for objectid in objects.keys():
object = ESObject.getByPrintedId(int(objectid))
if object: value = ESValue(ESValue.TYPE_OBJECT, object)
else: value = None
variables.append(("$$" + objectid, value))
if specials:
if specials.has_key("n"): variables.append(("$n", ESValue(ESValue.TYPE_NULL)))
if specials.has_key("u"): variables.append(("$u", ESValue(ESValue.TYPE_UNDEFINED)))
if specials.has_key("t"): variables.append(("$t", ESValue(ESValue.TYPE_BOOLEAN, True)))
if specials.has_key("f"): variables.append(("$f", ESValue(ESValue.TYPE_BOOLEAN, False)))
if specials.has_key("z"): variables.append(("$z", ESValue(ESValue.TYPE_NUMBER, 0)))
if specials.has_key("e"): variables.append(("$e", ESValue(ESValue.TYPE_STRING, "")))
variables.sort()
for name, value in variables:
logger.logDebug("preprocess", "Variable: %s => %s" % (name, value))
return variables
def parseMessage(session, data):
type = data.parseUnsigned()
messageType = messageTypes.get(type, GenericMessage)
logger.logDebug("message", "Parsing message: %r" % messageType)
message = messageType(session)
try:
message.parse(data)
except Close:
raise
except:
logger.logException()
logger.logDebug("parsing-failed", data.getMessageText())
return message
def parseString(self):
if self.__data[0] == "s":
length = int(self.__data[1:5], 16)
logger.logDebug("parsing",
"parseString: " + repr(self.__data[5:5 + length]))
value = unicode(self.__data[5:5 + length], "utf-8")
self -= 5 + length
else:
length = int(self.__data[1:9], 16)
logger.logDebug("parsing",
"parseString: " + repr(self.__data[9:9 + length]))
value = unicode(self.__data[9:9 + length], "utf-8")
self -= 9 + length
return value
def __repl(self, data):
if data is None or len(data) == 0:
return None
logger.logDebug('REPL({}): {}'.format(len(data), repr(data)))
try:
buffer = io.BytesIO()
sys.stdout = buffer
sys.stdin = open(os.devnull, 'r')
try:
result = str(eval(data, self.local_vars))
except SyntaxError:
exec data in self.local_vars
result = ''
except Exception:
import traceback
result = traceback.format_exc()
finally:
sys.stdin = sys.__stdin__
sys.stdout = sys.__stdout__
logger.logDebug('REPL({}): {}'.format(len(result), repr(result)))
logger.logDebug('REPL({}): {}'.format(len(buffer.getvalue()),
repr(buffer.getvalue())))
if len(result) == 0:
if len(buffer.getvalue()) == 0:
result = None
else:
result = buffer.getvalue()
else:
if len(buffer.getvalue()) > 0:
result += '\n' + buffer.getvalue()
if result is not None:
logger.logDebug('REPL({}): {}'.format(len(result), repr(result)))
return result
def parse(self, data):
logger.logDebug("parsing", "StoppedAt: " + str(data))
self.__runtime = self.getSession().getRuntime(data.parseUnsigned())
self.__thread = self.__runtime.getThread(data.parseUnsigned())
script = self.getSession().getScript(data.parseUnsigned())
linenr = data.parseUnsigned()
self.parseAuxiliary(data)
logger.logDebug("parsing", "Parsed StoppedAt: %d\n" % linenr)
self.__position = Position(script, linenr)
self.__thread.setCurrentPosition(self.__position)
def __getRequestRemoteSubstate(self, msg):
result = None
cmd, opt, subcmd, arg = msg.cmd, msg.opt, msg.subcmd, msg.arg
state = self.__state['U'].get(opt, None)
if state == STATE.ACCEPT:
if opt in requestOptionsSubstate['U']:
self.__state['U'][opt] = STATE.REQUEST
result = _Command(TOKEN.SB, opt, TOKEN.SEND)
elif state == STATE.REQUEST:
if cmd == TOKEN.SB and subcmd == TOKEN.IS:
value = arg
self.__state['U'][opt] = { 'value': value }
logger.logDebug('TELNET SUB: {} = {}'.format(opt, value))
if opt in self.__optionHandler:
result = self.__optionHandler[opt](value)
return result
def parseAuxiliary(self, data):
logger.logDebug("parsing", str(data))
while data:
try:
type = data.parseUnsigned()
except:
logger.logDebug("auxbug", "While parsing: %d" % self.getType())
logger.logException()
auxiliaryType = auxiliaryTypes.get(type)
if not auxiliaryType:
logger.logWarning(
"Unknown auxiliary type: %d (skipping rest of message)" %
type)
while data:
data.parseAny()
else:
auxiliary = auxiliaryType(self)
auxiliary.parse(data)
self.__auxiliary.append(auxiliary)
def setReadBuffer(self, buffer):
logger.logDebug("send", "Buffer length (in): %d" % len(buffer))
while len(buffer) >= 12:
size = int(buffer[0:8], 16)
length = int(buffer[8:12], 16)
if len(buffer) - 12 < size: break
try: self.parseMessage(size, length, buffer[12:12 + size])
except Close: raise
except: logger.logException()
buffer = buffer[12 + size:]
logger.logDebug("send", "Buffer length (loop): %d" % len(buffer))
logger.logDebug("send", "Buffer length (out): %d" % len(buffer))
self.__rbuffer = buffer
def parse(self, data):
self.__runtime = self.getSession().getRuntime(data.parseUnsigned())
self.__thread = self.__runtime.getThread(data.parseUnsigned())
self.__thread.setParentThread(
self.__runtime.getThread(data.parseUnsigned()))
self.__thread.setType(data.parseUnsigned())
logger.logDebug("threads", "New thread: %d" % self.__thread.getId())
if self.__thread.getParentThread():
logger.logDebug(
"threads",
"Parent thread: %d" % self.__thread.getParentThread().getId())
else:
logger.logDebug("threads", "No parent thread")
if self.__thread.getType() == ThreadStartedMessage.TYPE_EVENT:
self.__thread.setNamespaceURI(data.parseString())
self.__thread.setEventType(data.parseString())
self.parseAuxiliary(data)
def setReadBuffer(self, buffer):
logger.logDebug("send", "Buffer length (in): %d" % len(buffer))
while len(buffer) >= 12:
size = int(buffer[0:8], 16)
length = int(buffer[8:12], 16)
if len(buffer) - 12 < size: break
try:
self.parseMessage(size, length, buffer[12:12 + size])
except Close:
raise
except:
logger.logException()
buffer = buffer[12 + size:]
logger.logDebug("send", "Buffer length (loop): %d" % len(buffer))
logger.logDebug("send", "Buffer length (out): %d" % len(buffer))
self.__rbuffer = buffer
def control(self, msg):
request = []
if msg is None:
for opt in requestOptions['U']:
request.append(self.__getRequestRemoteState(None, opt))
request.append(self.__getRequestLocalState(None, opt))
else:
logger.logDebug('TELNET RCVD: {}'.format(msg.info()))
if self.__commandHandler and msg.cmd in self.__commandHandler:
self.__commandHandler[msg.cmd]()
request.append(self.__getRequestRemoteState(msg.cmd, msg.opt))
request.append(self.__getRequestLocalState(msg.cmd, msg.opt))
request.append(self.__getRequestRemoteSubstate(msg))
logger.logDebug('STATE: {}'.format(self.__state))
result = ''
for msg in request:
if msg is None:
continue
logger.logDebug('TELNET SENT: {}, {}'.format(msg.info(), repr(msg.code())))
result += msg.code()
return result
def run(self):
while not self.__closed:
pollobject = poll()
if sys.platform != "win32": pollobject.register(self.__rfd, POLLIN)
self.__lock.acquire()
for handler in self.__sockets:
if handler.getSocket() is not None:
flags = 0
if handler.getReadBuffer() is not None: flags = POLLIN
if handler.getWriteBuffer() is not None: flags = POLLOUT
pollobject.register(handler.getSocket().fileno(), flags)
if self.__listenSocket:
pollobject.register(self.__listenSocket.fileno(), POLLIN)
self.__lock.release()
if sys.platform == "win32": timeout = 0.1
else: timeout = None
while True:
try:
ready = pollobject.poll(timeout)
break
except error, (code, msg):
if code != EINTR: raise
self.__lock.acquire()
for fileno, flag in ready:
if sys.platform != "win32" and fileno == self.__rfd:
os.read(self.__rfd, 1024)
continue
if self.__listenSocket and fileno == self.__listenSocket.fileno():
logger.logDebug("connections", "New connection.")
newSocket, newAddress = self.__listenSocket.accept()
newSocket.setblocking(0)
newHandler = self.__listener.getSocketHandler(newSocket)
if newHandler:
self.__add(newHandler)
for handler in self.__sockets[:]:
if handler.getSocket() is not None and handler.getSocket().fileno() == fileno:
if flag == POLLIN:
try:
data = handler.getSocket().recv(16384)
if len(data) == 0: self.__close(handler)
else:
try:
handler.setReadBuffer(handler.getReadBuffer() + data)
except Close:
self.__close(handler)
except:
logger.logException()
self.__close(handler)
break
elif flag == POLLOUT:
try:
buffer = handler.getWriteBuffer()
written = handler.getSocket().send(buffer)
if written == len(buffer): handler.setWriteBuffer(None)
else: handler.setWriteBuffer(buffer[written:])
except:
logger.logException()
self.__close(handler)
break
else:
self.__close(handler)
break
self.__lock.release()
def __telnetHandlerTerm(self, value):
logger.logDebug('HANDLER: set TERM={}'.format(value))
self.__termtype = value
return None
def __write(self, data):
if data is None or len(data) == 0:
return
logger.logDebug('SEND({}): {}'.format(len(data), repr(data)))
self.request.sendall(data)
def parse(self, data):
logger.logDebug("generic", "Parsing generic message")
while data:
self.__items.append(data.parseAny())
logger.logDebug("generic", "Parsed %d items" % len(self.__items))
def runReplServer():
server = SocketServer.TCPServer((HOST, PORT), ReplRequestHandler)
logger.logDebug('REPL server start')
server.serve_forever()
def __telnetHandlerExtend(self, value):
logger.logDebug('HANDLER: exec msg={}'.format(repr(value)))
data = self.__repl(value)
result = self.telnet.getRequestExtendMsg(data)
self.telnet.setRequireOption(TOKEN.EXTEND_MSG)
return result
def run(self):
while not self.__closed:
pollobject = poll()
if sys.platform != "win32": pollobject.register(self.__rfd, POLLIN)
self.__lock.acquire()
for handler in self.__sockets:
if handler.getSocket() is not None:
flags = 0
if handler.getReadBuffer() is not None: flags = POLLIN
if handler.getWriteBuffer() is not None: flags = POLLOUT
pollobject.register(handler.getSocket().fileno(), flags)
if self.__listenSocket:
pollobject.register(self.__listenSocket.fileno(), POLLIN)
self.__lock.release()
if sys.platform == "win32": timeout = 0.1
else: timeout = None
while True:
try:
ready = pollobject.poll(timeout)
break
except error, (code, msg):
if code != EINTR: raise
self.__lock.acquire()
for fileno, flag in ready:
if sys.platform != "win32" and fileno == self.__rfd:
os.read(self.__rfd, 1024)
continue
if self.__listenSocket and fileno == self.__listenSocket.fileno(
):
logger.logDebug("connections", "New connection.")
newSocket, newAddress = self.__listenSocket.accept()
newSocket.setblocking(0)
newHandler = self.__listener.getSocketHandler(newSocket)
if newHandler:
self.__add(newHandler)
for handler in self.__sockets[:]:
if handler.getSocket() is not None and handler.getSocket(
).fileno() == fileno:
if flag == POLLIN:
try:
data = handler.getSocket().recv(16384)
if len(data) == 0: self.__close(handler)
else:
try:
handler.setReadBuffer(
handler.getReadBuffer() + data)
except Close:
self.__close(handler)
except:
logger.logException()
self.__close(handler)
break
elif flag == POLLOUT:
try:
buffer = handler.getWriteBuffer()
written = handler.getSocket().send(buffer)
if written == len(buffer):
handler.setWriteBuffer(None)
else:
handler.setWriteBuffer(buffer[written:])
except:
logger.logException()
self.__close(handler)
break
else:
self.__close(handler)
break
self.__lock.release()
