def parse_args():
"""Return host and port, or print usage and exit."""
usage = "usage: %prog [options] host [port]"
desc = ("Create a Minecraft proxy listening for a client connection," +
"and forward that connection to <host>:<port>.")
parser = OptionParser(usage=usage,
description=desc)
parser.add_option("-l", "--log-level", dest="loglvl", metavar="LEVEL",
choices=["debug","info","warn","error"],
help="Override logging.conf root log level")
parser.add_option("--log-file", dest='logfile', metavar="FILE", default=None,
help="logging configuration file (optional)")
parser.add_option("-p", "--local-port", dest="locport", metavar="PORT",
default="34343", type="int", help="Listen on this port")
parser.add_option("-c", "--check-authenticity", dest="check_auth",
action="store_true", default=False,
help="Check authenticity of connecting clients")
parser.add_option("-a", "--auto-authenticate", dest="authenticate",
action="store_true", default=False,
help="Authenticate with the credentials stored in the game client")
parser.add_option("-u", "--user", dest="user", metavar="USERNAME", default=None,
help="Authenticate with the given username and ask for the password")
parser.add_option("-P", "--password-file", dest="password_file",
metavar="FILE", default=None,
help="Authenticate with the credentials stored in FILE" +
"in the form \"username:password\"")
parser.add_option("--plugin", dest="plugins", metavar="ID:PLUGIN(ARGS)", type="string",
action="append", help="Configure a plugin", default=[])
parser.add_option("--profile", dest="perf_data", metavar="FILE", default=None,
help="Enable profiling, save profiling data to FILE")
(opts,args) = parser.parse_args()
if not 1 <= len(args) <= 2:
parser.error("Incorrect number of arguments.") # Calls sys.exit()
host = args[0]
port = 25565
if len(args) > 1:
try:
port = int(args[1])
except ValueError:
parser.error("Invalid port %s" % args[1])
pcfg = PluginConfig()
pregex = re.compile('((?P<id>\\w+):)?(?P<plugin_name>[\\w\\.\\d_]+)(\\((?P<argstr>.*)\\))?$')
for pstr in opts.plugins:
m = pregex.match(pstr)
if not m:
logger.error('Invalid --plugin option: %s' % pstr)
sys.exit(1)
else:
parts = {'argstr': ''}
parts.update(m.groupdict())
pcfg.add(**parts)
return (host, port, opts, pcfg)
