#!/usr/bin/python
# Copyright(C) 2013 Open Information Security Foundation

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.


from __future__ import print_function
import sys
import argparse
from suricatasc import *

parser = argparse.ArgumentParser(prog='suricatasc', description='Client for Suricata unix socket')
parser.add_argument('-v', '--verbose', action='store_const', const=True, help='verbose output (including JSON dump)')
parser.add_argument('-c', '--command', default=None, help='execute on single command and return JSON')
parser.add_argument('socket', metavar='socket', nargs='?', help='socket file to connnect to', default=None)
args = parser.parse_args()

if args.socket != None:
    SOCKET_PATH = args.socket
else:
    SOCKET_PATH = "@e_localstatedir@/suricata-command.socket"

sc = SuricataSC(SOCKET_PATH, verbose=args.verbose)
try:
    sc.connect()
except SuricataNetException as err:
    print("Unable to connect to socket %s: %s" % (SOCKET_PATH, err), file=sys.stderr)
    sys.exit(1)
except SuricataReturnException as err:
    print("Unable to negotiate version with server: %s" % (err), file=sys.stderr)
    sys.exit(1)

if args.command:
    (command, arguments) = sc.parse_command(args.command)
    res = sc.send_command(command, arguments)
    print(json.dumps(res))
    sc.close()
    if res['return'] == 'OK':
        sys.exit(0)
    else:
        sys.exit(1)

try:
    sc.interactive()
except SuricataNetException as err:
    print("Communication error: %s" % (err))
    sys.exit(1)
except SuricataReturnException as err:
    print("Invalid return from server: %s" % (err))
    sys.exit(1)

print("[+] Quit command client")

sc.close()
