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#! /usr/bin/python3
import json
import sys
import signal
import getpass
import hashlib
import base64
from .connection import Connection
from .gameclient import Client
from .display import Display
from .parseargs import parse_args
from asciifarmclient.common import messages
def main(argv=None):
(name, socketType, address, keybindings, characters, colours, logfile, ratuil_screen, ratuil_args) = parse_args(argv)
if ratuil_screen == "ansibuffered":
from ratuil.bufferedscreen import Screen
elif ratuil_screen == "ansi":
from ratuil.ansiscreen import Screen
elif ratuil_screen == "curses":
from ratuil.cursedscreen import Screen
else:
raise ValueError("Invalid ratuil screen selected")
connection = Connection(socketType)
try:
connection.connect(address)
except ConnectionRefusedError:
print("ERROR: Could not connect to server.\nAre you sure that the server is running and that you're connecting to the right address?", file=sys.stderr)
return
if not introduce(connection, name):
return
error = None
closeMessage = None
#os.environ.setdefault("ESCDELAY", "25")
screen = Screen(**ratuil_args)
try:
screen.initialize_terminal()
display = Display(screen, characters)
client = Client(display, name, connection, keybindings, logfile)
signal.signal(signal.SIGWINCH, client.onSigwinch)
try:
client.start()
except KeyboardInterrupt:
client.close("^C caught, goodbye")
except Exception as e:
# throw the execption outside ncurses
# so the cleanup can happen first
error = e
closeMessage = client.closeMessage
finally:
## Set everything back to normal
screen.finalize_terminal()
if error is not None:
raise error
if closeMessage:
print(closeMessage, file=sys.stderr)
def introduce(connection, name):
connection.send(messages.NameMessage(name))
print("introducing to server as {}".format(name))
response = connection.receive()
if response is None:
print("connection lost")
return False
if isinstance(response, messages.ConnectedMessage):
print("connection successful")
return True
if isinstance(response, messages.MessageMessage):
return response.type == "connect"
if isinstance(response, messages.ErrorMessage):
if response.errType == "registered":
print("'{}' is a registered name. Enter password to login, or restart the client with the -n <name> option to choose a different name".format(name))
password = getpass.getpass()
m = hashlib.sha256()
m.update(bytes("asciifarm{name}{pw}{name}asciifarm".format(name=name, pw=password), "utf-8"))
passbytes = m.digest()
passtoken = base64.b64encode(passbytes).decode("ascii")
connection.send(messages.AuthMessage(name, passtoken))
response = connection.receive()
if response is None:
print("connection lost")
return False
if isinstance(response, messages.ConnectedMessage):
print("connection successful")
return True
print("Connection unsuccessful: {}".format(response.to_json()))
return False
else:
print("Error: {}".format(response.to_json()), file=sys.stderr)
return False
print("Invalid server response: {}".format(response.to_json()), file=sys.stderr)
return False
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