def handle_command(self, op, action, data):
if op == Commands.SB and action == Commands.NAWS:
try:
print '* Client screen size: {}x{}'.format(
Utils.decode_word(data[0:2]),
Utils.decode_word(data[2:4]),
)
except:
exc = traceback.format_exc()
print exc
self.socket.send(exc)
def process(self):
while len(self.stack):
head = self.stack[0]
if head == Commands.IAC and len(self.stack) >= 2:
op = self.stack[1]
if len(self.stack) >= 3:
iac = self.stack.pop(0)
op = self.stack.pop(0)
action = self.stack.pop(0)
print 'Got command:', Commands.decode_cmd(iac, op, action)
if op == Commands.SB:
data = []
while self.stack[0:2] != [Commands.IAC, Commands.SE]:
b = self.stack.pop(0)
data.append(b)
self.stack.pop(0)
self.stack.pop(0)
print 'Subnegotiation data:', [ord(x) for x in data]
self.handle_command(op, action, data)
continue
# elif op == Commands.SB and (Commands.IAC + Commands.SE in ''.join(self.stack)):
# iac = self.stack.pop(0)
# op = self.stack.pop(0)
# action = self.stack.pop(0)
#
#
# continue
else:
return
elif Utils.is_ascii(head):
self.stack.pop(0)
self.socket.send(head)
continue
elif head == '\x0D':
self.stack.pop(0)
self.socket.send('\x0D\x0A')
elif head == '\t':
self.stack.pop(0)
self.socket.send('<TAB>')
continue
elif head == Commands.ESC:
# if len(self.stack) >= 2:
# self.socket.send(self.stack)
# else:
self.stack.pop(0)
# TODO: Implement escape char parsing
code_len, value = ANSI.inspect(self.stack)
self.socket.send('<{}>'.format(value))
for i in xrange(code_len):
self.stack.pop(0)
# self.socket.send('<ESCAPE>')
continue
elif head == Commands.CTRL_BREAK:
self.stack.pop(0)
self.socket.send('<CTRL+C>')
continue
elif head == '\x7F':
self.stack.pop(0)
self.socket.send('<BACKSPACE>')
continue
elif head == Commands.NULL:
self.stack.pop(0)
else:
print 'Unexpected byte - {}'.format(repr(head))
b = self.stack.pop(0)
self.socket.send('<0x{}>'.format('%02X' % ord(b)))
return
