コード例 #1
0
ファイル: main_menu.py プロジェクト: sohambakore/evillimiter
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('clear', self._clear_handler)

        hosts_parser = self.parser.add_subparser('hosts', self._hosts_handler)
        hosts_parser.add_flag('--force', 'force')

        scan_parser = self.parser.add_subparser('scan', self._scan_handler)
        scan_parser.add_parameterized_flag('--range', 'iprange')

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')
        limit_parser.add_flag('--upload', 'upload')
        limit_parser.add_flag('--download', 'download')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')
        block_parser.add_flag('--upload', 'upload')
        block_parser.add_flag('--download', 'download')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        add_parser = self.parser.add_subparser('add', self._add_handler)
        add_parser.add_parameter('ip')
        add_parser.add_parameterized_flag('--mac', 'mac')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.parser.add_subparser('quit', self._quit_handler)
        self.parser.add_subparser('exit', self._quit_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = list(
            netaddr.IPNetwork('{}/{}'.format(self.gateway_ip, self.netmask)))

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)

        # holds discovered hosts
        self.hosts = []

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()
コード例 #2
0
class MainMenu(CommandMenu):
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('hosts', self._hosts_handler)
        self.parser.add_subparser('clear', self._clear_handler)

        scan_parser = self.parser.add_subparser('scan', self._scan_handler)
        scan_parser.add_parameterized_flag('--range', 'iprange')

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        add_parser = self.parser.add_subparser('add', self._add_handler)
        add_parser.add_parameter('ip')
        add_parser.add_parameterized_flag('--mac', 'mac')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.parser.add_subparser('quit', self._quit_handler)
        self.parser.add_subparser('exit', self._quit_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = list(
            netaddr.IPNetwork('{}/{}'.format(self.gateway_ip, self.netmask)))

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)

        # holds discovered hosts
        self.hosts = []

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()

    def interrupt_handler(self, ctrl_c=True):
        if ctrl_c:
            IO.spacer()

        IO.ok('cleaning up... stand by...')

        self.arp_spoofer.stop()
        for host in self.hosts:
            self._free_host(host)

    def _scan_handler(self, args):
        """
        Handles 'scan' command-line argument
        (Re)scans for hosts on the network
        """
        if args.iprange:
            try:
                if '-' in args.iprange:
                    iprange = list(
                        netaddr.iter_iprange(*args.iprange.split('-')))
                else:
                    iprange = list(netaddr.IPNetwork(args.iprange))
            except netaddr.core.AddrFormatError:
                IO.error('ip range invalid.')
                return
        else:
            iprange = None

        for host in self.hosts:
            self._free_host(host)

        IO.spacer()

        self.hosts = self.host_scanner.scan(iprange)

        IO.ok('{}{}{} hosts discovered.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                len(self.hosts),
                                                IO.Style.RESET_ALL))
        IO.spacer()

    def _hosts_handler(self, args):
        """
        Handles 'hosts' command-line argument
        Displays discovered hosts
        """
        table_data = [[
            '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}IP-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}MAC-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Hostname{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Status{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
        ]]

        for i, host in enumerate(self.hosts):
            table_data.append([
                '{}{}{}'.format(IO.Fore.LIGHTYELLOW_EX, i, IO.Style.RESET_ALL),
                host.ip, host.mac, host.name if host.name is not None else '',
                host.pretty_status()
            ])

        table = SingleTable(table_data, 'Hosts')

        if not table.ok:
            IO.error(
                'table does not fit terminal. resize or decrease font size.')
            return

        IO.spacer()
        IO.print(table.table)
        IO.spacer()

    def _limit_handler(self, args):
        """
        Handles 'limit' command-line argument
        Limits bandwith of host to specified rate
        """
        hosts = self._get_hosts_by_ids(args.id)
        rate = args.rate

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                if not host.spoofed:
                    self.arp_spoofer.add(host)

                if netutils.validate_netrate_string(rate):
                    self.limiter.limit(host, rate)
                else:
                    IO.error('limit rate is invalid.')
                    return

                IO.ok('{}{}{} limited{} to {}.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                       host.ip,
                                                       IO.Fore.LIGHTRED_EX,
                                                       IO.Style.RESET_ALL,
                                                       rate))

    def _block_handler(self, args):
        """
        Handles 'block' command-line argument
        Blocks internet communication for host
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                if not host.spoofed:
                    self.arp_spoofer.add(host)

                self.limiter.block(host)
                IO.ok('{}{}{} blocked{}.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                 host.ip, IO.Fore.RED,
                                                 IO.Style.RESET_ALL))

    def _free_handler(self, args):
        """
        Handles 'free' command-line argument
        Frees the host from all limitations
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                self._free_host(host)

    def _add_handler(self, args):
        """
        Handles 'add' command-line argument
        Adds custom host to host list
        """
        ip = args.ip
        if not netutils.validate_ip_address(ip):
            IO.error('invalid ip address.')
            return

        if args.mac:
            mac = args.mac
            if not netutils.validate_mac_address(mac):
                IO.error('invalid mac address.')
                return
        else:
            mac = netutils.get_mac_by_ip(self.interface, ip)
            if mac is None:
                IO.error(
                    'unable to resolve mac address. specify manually (--mac).')
                return

        name = None
        try:
            host_info = socket.gethostbyaddr(ip)
            name = None if host_info is None else host_info[0]
        except socket.herror:
            pass

        host = Host(ip, mac, name)
        if host in self.hosts:
            IO.error('host does already exist.')
            return

        self.hosts.append(host)
        IO.ok('host added.')

    def _clear_handler(self, args):
        """
        Handler for the 'clear' command-line argument
        Clears the terminal window and re-prints the banner
        """
        IO.clear()
        IO.print(get_main_banner(self.version))
        self._print_help_reminder()

    def _help_handler(self, args):
        """
        Handles 'help' command-line argument
        Prints help message including commands and usage
        """
        spaces = ' ' * 30

        IO.print("""
{y}scan (--range [IP range]){r}{}scans for online hosts on your network.
{s}required to find the hosts you want to limit.
{b}{s}e.g.: scan
{s}      scan --range 192.168.178.1-192.168.178.50
{s}      scan --range 192.168.178.1/24{r}

{y}hosts{r}{}lists all scanned hosts.
{s}contains host information, including IDs.

{y}limit [ID1,ID2,...] [rate]{r}{}limits bandwith of host(s) (uload/dload).
{b}{s}e.g.: limit 4 100kbit
{s}      limit 2,3,4 1gbit
{s}      limit all 200kbit{r}

{y}block [ID1,ID2,...]{r}{}blocks internet access of host(s).
{b}{s}e.g.: block 3,2
{s}      block all{r}

{y}free [ID1,ID2,...]{r}{}unlimits/unblocks host(s).
{b}{s}e.g.: free 3
{s}      free all{r}

{y}add [IP] (--mac [MAC]){r}{}adds custom host to host list.
{s}mac resolved automatically.
{b}{s}e.g.: add 192.168.178.24
{s}      add 192.168.1.50 --mac 1c:fc:bc:2d:a6:37{r}

{y}clear{r}{}clears the terminal window.

{y}quit{r}{}quits the application.
            """.format(spaces[len('scan (--range [IP range])'):],
                       spaces[len('hosts'):],
                       spaces[len('limit [ID1,ID2,...] [rate]'):],
                       spaces[len('block [ID1,ID2,...]'):],
                       spaces[len('free [ID1,ID2,...]'):],
                       spaces[len('add [IP] (--mac [MAC])'):],
                       spaces[len('clear'):],
                       spaces[len('quit'):],
                       y=IO.Fore.LIGHTYELLOW_EX,
                       r=IO.Style.RESET_ALL,
                       b=IO.Style.BRIGHT,
                       s=spaces))

    def _quit_handler(self, args):
        self.interrupt_handler(False)
        self.stop()

    def _print_help_reminder(self):
        IO.print(
            'type {Y}help{R} or {Y}?{R} to show command information.'.format(
                Y=IO.Fore.LIGHTYELLOW_EX, R=IO.Style.RESET_ALL))

    def _get_hosts_by_ids(self, ids_string):
        if ids_string == 'all':
            return self.hosts.copy()

        try:
            ids = [int(x) for x in ids_string.split(',')]
        except ValueError:
            IO.error('\'{}\' are invalid IDs.'.format(ids_string))
            return

        hosts = []

        for id_ in ids:
            if len(self.hosts) == 0 or id_ not in range(len(self.hosts)):
                IO.error('no host with id {}{}{}.'.format(
                    IO.Fore.LIGHTYELLOW_EX, id_, IO.Style.RESET_ALL))
                return
            if self.hosts[id_] not in hosts:
                hosts.append(self.hosts[id_])

        return hosts

    def _free_host(self, host):
        """
        Stops ARP spoofing and unlimits host
        """
        if host.spoofed:
            self.arp_spoofer.remove(host)
            self.limiter.unlimit(host)
            IO.ok('{}{}{} freed.'.format(IO.Fore.LIGHTYELLOW_EX, host.ip,
                                         IO.Style.RESET_ALL))
コード例 #3
0
ファイル: main_menu.py プロジェクト: willyrgf/evillimiter
class MainMenu(CommandMenu):
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('scan', self._scan_handler)
        self.parser.add_subparser('hosts', self._hosts_handler)
        self.parser.add_subparser('clear', self._clear_handler)

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = [
            str(x) for x in netaddr.IPNetwork('{}/{}'.format(
                self.gateway_ip, self.netmask))
        ]

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)

        # holds discovered hosts
        self.hosts = []

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()

    def interrupt_handler(self):
        IO.spacer()
        IO.ok('cleaning up... stand by...')

        self.arp_spoofer.stop()
        for host in self.hosts:
            self._free_host(host)

    def _scan_handler(self, args):
        """
        Handles 'scan' command-line argument
        (Re)scans for hosts on the network
        """
        for host in self.hosts:
            self._free_host(host)

        IO.spacer()

        self.hosts = self.host_scanner.scan()

        IO.ok('{}{}{} hosts discovered.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                len(self.hosts),
                                                IO.Style.RESET_ALL))
        IO.spacer()

    def _hosts_handler(self, args):
        """
        Handles 'hosts' command-line argument
        Displays discovered hosts
        """
        table_data = [[
            '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}IP-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}MAC-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Hostname{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Status{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
        ]]

        for i, host in enumerate(self.hosts):
            table_data.append([
                '{}{}{}'.format(IO.Fore.LIGHTYELLOW_EX, i, IO.Style.RESET_ALL),
                host.ip, host.mac, host.name if host.name is not None else '',
                host.pretty_status()
            ])

        table = SingleTable(table_data, 'Hosts')

        if not table.ok:
            IO.error(
                'table does not fit terminal. resize or decrease font size.')
            return

        IO.spacer()
        IO.print(table.table)
        IO.spacer()

    def _limit_handler(self, args):
        """
        Handles 'limit' command-line argument
        Limits bandwith of host to specified rate
        """
        host = self._get_host_by_id(args.id)
        rate = args.rate

        if host is not None:
            if not host.spoofed:
                self.arp_spoofer.add(host)

            if netutils.validate_netrate_string(rate):
                self.limiter.limit(host, rate)
            else:
                IO.error('limit rate is invalid.')
                return

            IO.ok('{}{}{} limited{} to {}.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                   host.ip,
                                                   IO.Fore.LIGHTRED_EX,
                                                   IO.Style.RESET_ALL, rate))

    def _block_handler(self, args):
        """
        Handles 'block' command-line argument
        Blocks internet communication for host
        """
        host = self._get_host_by_id(args.id)
        if host is not None:
            if not host.spoofed:
                self.arp_spoofer.add(host)

            self.limiter.block(host)
            IO.ok('{}{}{} blocked{}.'.format(IO.Fore.LIGHTYELLOW_EX, host.ip,
                                             IO.Fore.RED, IO.Style.RESET_ALL))

    def _free_handler(self, args):
        """
        Handles 'free' command-line argument
        Frees the host from all limitations
        """
        host = self._get_host_by_id(args.id)
        if host is not None:
            self._free_host(host)

    def _clear_handler(self, args):
        """
        Handler for the 'clear' command-line argument
        Clears the terminal window and re-prints the banner
        """
        IO.clear()
        IO.print(get_main_banner(self.version))
        self._print_help_reminder()

    def _help_handler(self, args):
        """
        Handles 'help' command-line argument
        Prints help message including commands and usage
        """
        spaces = ' ' * 20

        IO.print("""
{y}scan{r}{}scans for online hosts on your network.
{s}required to find the hosts you want to limit.

{y}hosts{r}{}lists all scanned hosts.
{s}contains host information, including IDs.

{y}limit [ID] [rate]{r}{}limits bandwith of host (uload/dload).
{b}{s}e.g.: limit 4 100kbit
{s}      limit 2 1gbit
{s}      limit 5 500tbit{r}

{y}block [ID]{r}{}blocks internet access of host.
{b}{s}e.g.: block 3{r}

{y}free [ID]{r}{}unlimits/unblocks host.
{b}{s}e.g.: free 3{r}

{y}clear{r}{}clears the terminal window.
            """.format(spaces[len('scan'):],
                       spaces[len('hosts'):],
                       spaces[len('limit [ID] [rate]'):],
                       spaces[len('block [ID]'):],
                       spaces[len('free [ID]'):],
                       spaces[len('clear'):],
                       y=IO.Fore.LIGHTYELLOW_EX,
                       r=IO.Style.RESET_ALL,
                       b=IO.Style.BRIGHT,
                       s=spaces))

    def _print_help_reminder(self):
        IO.print(
            'type {Y}help{R} or {Y}?{R} to show command information.'.format(
                Y=IO.Fore.LIGHTYELLOW_EX, R=IO.Style.RESET_ALL))

    def _get_host_by_id(self, id_):
        try:
            identifier = int(id_)
        except ValueError:
            IO.error('identifier is not an integer.')
            return

        if len(self.hosts) == 0 or identifier not in range(len(self.hosts)):
            IO.error('no host with id {}{}{}.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                      identifier,
                                                      IO.Style.RESET_ALL))
            return

        return self.hosts[identifier]

    def _free_host(self, host):
        """
        Stops ARP spoofing and unlimits host
        """
        if host.spoofed:
            self.arp_spoofer.remove(host)
            self.limiter.unlimit(host)
            IO.ok('{}{}{} freed.'.format(IO.Fore.LIGHTYELLOW_EX, host.ip,
                                         IO.Style.RESET_ALL))
コード例 #4
0
ファイル: main_menu.py プロジェクト: yotabits/evillimiter
class MainMenu(CommandMenu):
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('clear', self._clear_handler)

        hosts_parser = self.parser.add_subparser('hosts', self._hosts_handler)
        hosts_parser.add_flag('--force', 'force')

        scan_parser = self.parser.add_subparser('scan', self._scan_handler)
        scan_parser.add_parameterized_flag('--range', 'iprange')

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')
        limit_parser.add_flag('--upload', 'upload')
        limit_parser.add_flag('--download', 'download')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')
        block_parser.add_flag('--upload', 'upload')
        block_parser.add_flag('--download', 'download')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        add_parser = self.parser.add_subparser('add', self._add_handler)
        add_parser.add_parameter('ip')
        add_parser.add_parameterized_flag('--mac', 'mac')

        monitor_parser = self.parser.add_subparser('monitor',
                                                   self._monitor_handler)
        monitor_parser.add_parameterized_flag('--interval', 'interval')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.parser.add_subparser('quit', self._quit_handler)
        self.parser.add_subparser('exit', self._quit_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = list(
            netaddr.IPNetwork('{}/{}'.format(self.gateway_ip, self.netmask)))

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)
        self.bandwidth_monitor = BandwidthMonitor(self.interface, 1)

        # holds discovered hosts
        self.hosts = []

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()
        # start the bandwidth monitor thread
        self.bandwidth_monitor.start()

    def interrupt_handler(self, ctrl_c=True):
        if ctrl_c:
            IO.spacer()

        IO.ok('cleaning up... stand by...')

        self.arp_spoofer.stop()
        self.bandwidth_monitor.stop()

        for host in self.hosts:
            self._free_host(host)

    def _scan_handler(self, args):
        """
        Handles 'scan' command-line argument
        (Re)scans for hosts on the network
        """
        if args.iprange:
            try:
                if '-' in args.iprange:
                    iprange = list(
                        netaddr.iter_iprange(*args.iprange.split('-')))
                else:
                    iprange = list(netaddr.IPNetwork(args.iprange))
            except netaddr.core.AddrFormatError:
                IO.error('ip range invalid.')
                return
        else:
            iprange = None

        for host in self.hosts:
            self._free_host(host)

        IO.spacer()

        self.hosts = self.host_scanner.scan(iprange)

        IO.ok('{}{}{} hosts discovered.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                len(self.hosts),
                                                IO.Style.RESET_ALL))
        IO.spacer()

    def _hosts_handler(self, args):
        """
        Handles 'hosts' command-line argument
        Displays discovered hosts
        """
        table_data = [[
            '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}IP-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}MAC-Address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Hostname{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Status{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
        ]]

        for i, host in enumerate(self.hosts):
            table_data.append([
                '{}{}{}'.format(IO.Fore.LIGHTYELLOW_EX, i, IO.Style.RESET_ALL),
                host.ip, host.mac, host.name,
                host.pretty_status()
            ])

        table = SingleTable(table_data, 'Hosts')

        if not args.force and not table.ok:
            IO.error(
                'table does not fit terminal. resize or decrease font size. you can also force the display (--force).'
            )
            return

        IO.spacer()
        IO.print(table.table)
        IO.spacer()

    def _limit_handler(self, args):
        """
        Handles 'limit' command-line argument
        Limits bandwith of host to specified rate
        """
        hosts = self._get_hosts_by_ids(args.id)

        try:
            rate = BitRate.from_rate_string(args.rate)
        except Exception:
            IO.error('limit rate is invalid.')
            return

        direction = self._parse_direction_args(args)

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                if not host.spoofed:
                    self.arp_spoofer.add(host)

                self.limiter.limit(host, direction, rate)
                self.bandwidth_monitor.add(host)
                IO.ok('{}{}{r} {} {}limited{r} to {}.'.format(
                    IO.Fore.LIGHTYELLOW_EX,
                    host.ip,
                    Direction.pretty_direction(direction),
                    IO.Fore.LIGHTRED_EX,
                    rate,
                    r=IO.Style.RESET_ALL))

    def _block_handler(self, args):
        """
        Handles 'block' command-line argument
        Blocks internet communication for host
        """
        hosts = self._get_hosts_by_ids(args.id)
        direction = self._parse_direction_args(args)

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                if not host.spoofed:
                    self.arp_spoofer.add(host)

                self.limiter.block(host, direction)
                self.bandwidth_monitor.add(host)
                IO.ok('{}{}{r} {} {}blocked{r}.'.format(
                    IO.Fore.LIGHTYELLOW_EX,
                    host.ip,
                    Direction.pretty_direction(direction),
                    IO.Fore.RED,
                    r=IO.Style.RESET_ALL))

    def _free_handler(self, args):
        """
        Handles 'free' command-line argument
        Frees the host from all limitations
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                self._free_host(host)

    def _add_handler(self, args):
        """
        Handles 'add' command-line argument
        Adds custom host to host list
        """
        ip = args.ip
        if not netutils.validate_ip_address(ip):
            IO.error('invalid ip address.')
            return

        if args.mac:
            mac = args.mac
            if not netutils.validate_mac_address(mac):
                IO.error('invalid mac address.')
                return
        else:
            mac = netutils.get_mac_by_ip(self.interface, ip)
            if mac is None:
                IO.error(
                    'unable to resolve mac address. specify manually (--mac).')
                return

        name = None
        try:
            host_info = socket.gethostbyaddr(ip)
            name = None if host_info is None else host_info[0]
        except socket.herror:
            pass

        host = Host(ip, mac, name)
        if host in self.hosts:
            IO.error('host does already exist.')
            return

        self.hosts.append(host)
        IO.ok('host added.')

    def _monitor_handler(self, args):
        """
        Handles 'monitor' command-line argument
        Monitors hosts bandwidth usage
        """
        def get_bandwidth_results():
            return [
                x for x in [(y, self.bandwidth_monitor.get(y))
                            for y in self.hosts] if x[1] is not None
            ]

        def display(stdscr, interval):
            host_results = get_bandwidth_results()
            hname_max_len = max([len(x[0].name) for x in host_results])

            header_off = [('ID', 5), ('IP-Address', 18),
                          ('Hostname', hname_max_len + 2),
                          ('Current (per s)', 20), ('Total', 16),
                          ('Packets', 0)]

            y_rst = 1
            x_rst = 2

            while True:
                y_off = y_rst
                x_off = x_rst

                stdscr.clear()

                for header in header_off:
                    stdscr.addstr(y_off, x_off, header[0])
                    x_off += header[1]

                y_off += 2
                x_off = x_rst

                for i, (host, result) in enumerate(host_results):
                    result_data = [
                        str(i), host.ip, host.name,
                        '{}↑ {}↓'.format(result.upload_rate,
                                         result.download_rate),
                        '{}↑ {}↓'.format(result.upload_total_size,
                                         result.download_total_size),
                        '{}↑ {}↓'.format(result.upload_total_count,
                                         result.download_total_count)
                    ]

                    for j, string in enumerate(result_data):
                        stdscr.addstr(y_off, x_off, string)
                        x_off += header_off[j][1]

                    y_off += 1
                    x_off = x_rst

                y_off += 2
                stdscr.addstr(y_off, x_off, 'press \'ctrl+c\' to exit.')

                try:
                    stdscr.refresh()
                    time.sleep(interval)
                    host_results = get_bandwidth_results()
                except KeyboardInterrupt:
                    return

        interval = 0.5  # in s
        if args.interval:
            if not args.interval.isdigit():
                IO.error('invalid interval.')
                return

            interval = int(args.interval) / 1000  # from ms to s

        if len(get_bandwidth_results()) == 0:
            IO.error('no hosts to be monitored.')
            return

        try:
            curses.wrapper(display, interval)
        except curses.error:
            IO.error('monitor error occurred. maybe terminal too small?')

    def _clear_handler(self, args):
        """
        Handler for the 'clear' command-line argument
        Clears the terminal window and re-prints the banner
        """
        IO.clear()
        IO.print(get_main_banner(self.version))
        self._print_help_reminder()

    def _help_handler(self, args):
        """
        Handles 'help' command-line argument
        Prints help message including commands and usage
        """
        spaces = ' ' * 35

        IO.print("""
{y}scan (--range [IP range]){r}{}scans for online hosts on your network.
{s}required to find the hosts you want to limit.
{b}{s}e.g.: scan
{s}      scan --range 192.168.178.1-192.168.178.50
{s}      scan --range 192.168.178.1/24{r}

{y}hosts (--force){r}{}lists all scanned hosts.
{s}contains host information, including IDs.

{y}limit [ID1,ID2,...] [rate]{r}{}limits bandwith of host(s) (uload/dload).
{y}      (--upload) (--download){r}{}{b}e.g.: limit 4 100kbit
{s}      limit 2,3,4 1gbit --download
{s}      limit all 200kbit --upload{r}

{y}block [ID1,ID2,...]{r}{}blocks internet access of host(s).
{y}      (--upload) (--download){r}{}{b}e.g.: block 3,2
{s}      block all --upload{r}

{y}free [ID1,ID2,...]{r}{}unlimits/unblocks host(s).
{b}{s}e.g.: free 3
{s}      free all{r}

{y}add [IP] (--mac [MAC]){r}{}adds custom host to host list.
{s}mac resolved automatically.
{b}{s}e.g.: add 192.168.178.24
{s}      add 192.168.1.50 --mac 1c:fc:bc:2d:a6:37{r}

{y}monitor (--interval [time in ms]){r}{}monitors bandwidth usage of limited hosts.
{b}{s}e.g.: monitor --interval 600{r}

{y}clear{r}{}clears the terminal window.

{y}quit{r}{}quits the application.
            """.format(spaces[len('scan (--range [IP range])'):],
                       spaces[len('hosts (--force)'):],
                       spaces[len('limit [ID1,ID2,...] [rate]'):],
                       spaces[len('      (--upload) (--download)'):],
                       spaces[len('block [ID1,ID2,...]'):],
                       spaces[len('      (--upload) (--download)'):],
                       spaces[len('free [ID1,ID2,...]'):],
                       spaces[len('add [IP] (--mac [MAC])'):],
                       spaces[len('monitor (--interval [time in ms])'):],
                       spaces[len('clear'):],
                       spaces[len('quit'):],
                       y=IO.Fore.LIGHTYELLOW_EX,
                       r=IO.Style.RESET_ALL,
                       b=IO.Style.BRIGHT,
                       s=spaces))

    def _quit_handler(self, args):
        self.interrupt_handler(False)
        self.stop()

    def _print_help_reminder(self):
        IO.print(
            'type {Y}help{R} or {Y}?{R} to show command information.'.format(
                Y=IO.Fore.LIGHTYELLOW_EX, R=IO.Style.RESET_ALL))

    def _get_hosts_by_ids(self, ids_string):
        if ids_string == 'all':
            return self.hosts.copy()

        ids = ids_string.split(',')
        hosts = set()

        for id_ in ids:
            is_mac = netutils.validate_mac_address(id_)
            is_ip = netutils.validate_ip_address(id_)
            is_id_ = id_.isdigit()

            if not is_mac and not is_ip and not is_id_:
                IO.error('invalid identifier(s): \'{}\'.'.format(ids_string))
                return

            if is_mac or is_ip:
                found = False
                for host in self.hosts:
                    if host.mac == id_.lower() or host.ip == id_:
                        found = True
                        hosts.add(host)
                        break
                if not found:
                    IO.error('no host matching {}{}{}.'.format(
                        IO.Fore.LIGHTYELLOW_EX, id_, IO.Style.RESET_ALL))
                    return
            else:
                id_ = int(id_)
                if len(self.hosts) == 0 or id_ not in range(len(self.hosts)):
                    IO.error('no host with id {}{}{}.'.format(
                        IO.Fore.LIGHTYELLOW_EX, id_, IO.Style.RESET_ALL))
                    return
                hosts.add(self.hosts[id_])

        return hosts

    def _parse_direction_args(self, args):
        direction = Direction.NONE

        if args.upload:
            direction |= Direction.OUTGOING
        if args.download:
            direction |= Direction.INCOMING

        return Direction.BOTH if direction == Direction.NONE else direction

    def _free_host(self, host):
        """
        Stops ARP spoofing and unlimits host
        """
        if host.spoofed:
            self.arp_spoofer.remove(host)
            self.limiter.unlimit(host, Direction.BOTH)
            self.bandwidth_monitor.remove(host)
            IO.ok('{}{}{} freed.'.format(IO.Fore.LIGHTYELLOW_EX, host.ip,
                                         IO.Style.RESET_ALL))
コード例 #5
0
ファイル: main_menu.py プロジェクト: DSlite/FP-IDS
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('clear', self._clear_handler)

        hosts_parser = self.parser.add_subparser('hosts', self._hosts_handler)
        hosts_parser.add_flag('--force', 'force')

        scan_parser = self.parser.add_subparser('scan', self._scan_handler)
        scan_parser.add_parameterized_flag('--range', 'iprange')

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')
        limit_parser.add_flag('--upload', 'upload')
        limit_parser.add_flag('--download', 'download')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')
        block_parser.add_flag('--upload', 'upload')
        block_parser.add_flag('--download', 'download')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        add_parser = self.parser.add_subparser('add', self._add_handler)
        add_parser.add_parameter('ip')
        add_parser.add_parameterized_flag('--mac', 'mac')

        remove_parser = self.parser.add_subparser('remove',
                                                  self._remove_handler)
        remove_parser.add_parameter('id')

        monitor_parser = self.parser.add_subparser('monitor',
                                                   self._monitor_handler)
        monitor_parser.add_parameterized_flag('--interval', 'interval')

        analyze_parser = self.parser.add_subparser('analyze',
                                                   self._analyze_handler)
        analyze_parser.add_parameter('id')
        analyze_parser.add_parameterized_flag('--duration', 'duration')

        watch_parser = self.parser.add_subparser('watch', self._watch_handler)
        watch_add_parser = watch_parser.add_subparser('add',
                                                      self._watch_add_handler)
        watch_add_parser.add_parameter('id')
        watch_remove_parser = watch_parser.add_subparser(
            'remove', self._watch_remove_handler)
        watch_remove_parser.add_parameter('id')
        watch_set_parser = watch_parser.add_subparser('set',
                                                      self._watch_set_handler)
        watch_set_parser.add_parameter('attribute')
        watch_set_parser.add_parameter('value')

        auto_parser = self.parser.add_subparser('auto', self._auto_handler)
        auto_parser.add_parameter('maximum')
        auto_parser.add_parameter('rate')
        auto_parser.add_parameterized_flag('--interval', 'interval')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.parser.add_subparser('quit', self._quit_handler)
        self.parser.add_subparser('exit', self._quit_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = list(
            netaddr.IPNetwork('{}/{}'.format(self.gateway_ip, self.netmask)))

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)
        self.bandwidth_monitor = BandwidthMonitor(self.interface, 1)
        self.host_watcher = HostWatcher(self.host_scanner,
                                        self._reconnect_callback)

        # holds discovered hosts
        self.hosts = []
        self.hosts_lock = threading.Lock()

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()
        # start the bandwidth monitor thread
        self.bandwidth_monitor.start()
        # start the host watch thread
        self.host_watcher.start()
コード例 #6
0
ファイル: main_menu.py プロジェクト: DSlite/FP-IDS
class MainMenu(CommandMenu):
    def __init__(self, version, interface, gateway_ip, gateway_mac, netmask):
        super().__init__()
        self.prompt = '({}Main{}) >>> '.format(IO.Style.BRIGHT,
                                               IO.Style.RESET_ALL)
        self.parser.add_subparser('clear', self._clear_handler)

        hosts_parser = self.parser.add_subparser('hosts', self._hosts_handler)
        hosts_parser.add_flag('--force', 'force')

        scan_parser = self.parser.add_subparser('scan', self._scan_handler)
        scan_parser.add_parameterized_flag('--range', 'iprange')

        limit_parser = self.parser.add_subparser('limit', self._limit_handler)
        limit_parser.add_parameter('id')
        limit_parser.add_parameter('rate')
        limit_parser.add_flag('--upload', 'upload')
        limit_parser.add_flag('--download', 'download')

        block_parser = self.parser.add_subparser('block', self._block_handler)
        block_parser.add_parameter('id')
        block_parser.add_flag('--upload', 'upload')
        block_parser.add_flag('--download', 'download')

        free_parser = self.parser.add_subparser('free', self._free_handler)
        free_parser.add_parameter('id')

        add_parser = self.parser.add_subparser('add', self._add_handler)
        add_parser.add_parameter('ip')
        add_parser.add_parameterized_flag('--mac', 'mac')

        remove_parser = self.parser.add_subparser('remove',
                                                  self._remove_handler)
        remove_parser.add_parameter('id')

        monitor_parser = self.parser.add_subparser('monitor',
                                                   self._monitor_handler)
        monitor_parser.add_parameterized_flag('--interval', 'interval')

        analyze_parser = self.parser.add_subparser('analyze',
                                                   self._analyze_handler)
        analyze_parser.add_parameter('id')
        analyze_parser.add_parameterized_flag('--duration', 'duration')

        watch_parser = self.parser.add_subparser('watch', self._watch_handler)
        watch_add_parser = watch_parser.add_subparser('add',
                                                      self._watch_add_handler)
        watch_add_parser.add_parameter('id')
        watch_remove_parser = watch_parser.add_subparser(
            'remove', self._watch_remove_handler)
        watch_remove_parser.add_parameter('id')
        watch_set_parser = watch_parser.add_subparser('set',
                                                      self._watch_set_handler)
        watch_set_parser.add_parameter('attribute')
        watch_set_parser.add_parameter('value')

        auto_parser = self.parser.add_subparser('auto', self._auto_handler)
        auto_parser.add_parameter('maximum')
        auto_parser.add_parameter('rate')
        auto_parser.add_parameterized_flag('--interval', 'interval')

        self.parser.add_subparser('help', self._help_handler)
        self.parser.add_subparser('?', self._help_handler)

        self.parser.add_subparser('quit', self._quit_handler)
        self.parser.add_subparser('exit', self._quit_handler)

        self.version = version  # application version
        self.interface = interface  # specified IPv4 interface
        self.gateway_ip = gateway_ip
        self.gateway_mac = gateway_mac
        self.netmask = netmask

        # range of IP address calculated from gateway IP and netmask
        self.iprange = list(
            netaddr.IPNetwork('{}/{}'.format(self.gateway_ip, self.netmask)))

        self.host_scanner = HostScanner(self.interface, self.iprange)
        self.arp_spoofer = ARPSpoofer(self.interface, self.gateway_ip,
                                      self.gateway_mac)
        self.limiter = Limiter(self.interface)
        self.bandwidth_monitor = BandwidthMonitor(self.interface, 1)
        self.host_watcher = HostWatcher(self.host_scanner,
                                        self._reconnect_callback)

        # holds discovered hosts
        self.hosts = []
        self.hosts_lock = threading.Lock()

        self._print_help_reminder()

        # start the spoof thread
        self.arp_spoofer.start()
        # start the bandwidth monitor thread
        self.bandwidth_monitor.start()
        # start the host watch thread
        self.host_watcher.start()

    def interrupt_handler(self, ctrl_c=True):
        if ctrl_c:
            IO.spacer()

        IO.ok('cleaning up... stand by...')

        self.arp_spoofer.stop()
        self.bandwidth_monitor.stop()

        for host in self.hosts:
            self._free_host(host)

    def _auto_handler(self, args):
        def get_bandwidth_results():
            with self.hosts_lock:
                return [
                    x for x in [(y, self.bandwidth_monitor.get(y))
                                for y in self.hosts] if x[1] is not None
                ]

        def display(stdscr, interval):
            host_results = get_bandwidth_results()
            hname_max_len = max([len(x[0].name) for x in host_results])

            header_off = [('ID', 5), ('IP address', 18),
                          ('Hostname', hname_max_len + 2), ('Status', 8),
                          ('Current (per s)', 20), ('Total', 16),
                          ('Packets', 0)]

            y_rst = 1
            x_rst = 2

            while True:
                y_off = y_rst
                x_off = x_rst

                stdscr.clear()

                for header in header_off:
                    stdscr.addstr(y_off, x_off, header[0])
                    x_off += header[1]

                y_off += 2
                x_off = x_rst

                for host, result in host_results:
                    if not host.limited and int(
                            ValueConverter.byte_to_bit(
                                result.download_total_size.value)
                    ) > max_bit.rate:
                        IO.discord("""```
IP: {}
MAC: {}
NAME: {}
Dilimit menjadi {} karena melebihi batas maksimum {}```
                        """.format(host.ip, host.mac, host.name, rate,
                                   max_bit))
                        self.limiter.limit(host, 3, rate)

                    result_data = [
                        str(self._get_host_id(host)), host.ip, host.name,
                        "Limited" if host.limited else "Free",
                        '{}↑ {}↓'.format(result.upload_rate,
                                         result.download_rate),
                        '{}↑ {}↓'.format(result.upload_total_size,
                                         result.download_total_size),
                        '{}↑ {}↓'.format(result.upload_total_count,
                                         result.download_total_count)
                    ]

                    for j, string in enumerate(result_data):
                        stdscr.addstr(y_off, x_off, string)
                        x_off += header_off[j][1]

                    y_off += 1
                    x_off = x_rst

                y_off += 2
                stdscr.addstr(y_off, x_off, 'press \'ctrl+c\' to exit.')

                try:
                    stdscr.refresh()
                    time.sleep(interval)
                    host_results = get_bandwidth_results()
                except KeyboardInterrupt:
                    IO.discord("Monitoring dihentikan...")
                    for host in hosts:
                        self._free_host(host)
                    return

        hosts = self._get_hosts_by_ids("all")

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                self._free_host(host)
                self.arp_spoofer.add(host)
                self.bandwidth_monitor.add(host)
                self.host_watcher.add(host)
        else:
            IO.error("no hosts to be monitored")
            return

        try:
            max_bit = BitRate.from_rate_string(args.maximum)
            rate = BitRate.from_rate_string(args.rate)
        except Exception:
            IO.error('maximum bit is invalid.')
            return

        interval = 0.5  # in s
        if args.interval:
            if not args.interval.isdigit():
                IO.error('invalid interval.')
                return

            interval = int(args.interval) / 1000  # from ms to s

        try:
            IO.discord(
                "Melakukan monitoring pada sistem...\nLimit host menjadi **{}** jika melebihi batas maksimum **{}**"
                .format(args.rate, args.maximum))
            curses.wrapper(display, interval)
        except curses.error:
            IO.error('monitor error occurred. maybe terminal too small?')

    def _scan_handler(self, args):
        """
        Handles 'scan' command-line argument
        (Re)scans for hosts on the network
        """
        if args.iprange:
            iprange = self._parse_iprange(args.iprange)
            if iprange is None:
                IO.error('invalid ip range.')
                return
        else:
            iprange = None

        with self.hosts_lock:
            for host in self.hosts:
                self._free_host(host)

        IO.spacer()
        IO.discord("Scanning...")
        hosts = self.host_scanner.scan(iprange)

        hosts = [host for host in hosts if host not in self.hosts]

        self.hosts_lock.acquire()
        self.hosts += hosts
        self.hosts_lock.release()

        IO.ok('{}{}{} hosts discovered.'.format(IO.Fore.LIGHTYELLOW_EX,
                                                len(hosts),
                                                IO.Style.RESET_ALL))
        IO.spacer()
        IO.discord("{} hosts terdeteksi".format(len(hosts)))

    def _hosts_handler(self, args):
        """
        Handles 'hosts' command-line argument
        Displays discovered hosts
        """
        table_data = [[
            '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}IP address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}MAC address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Hostname{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
            '{}Status{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
        ]]

        with self.hosts_lock:
            for host in self.hosts:
                table_data.append([
                    '{}{}{}'.format(IO.Fore.LIGHTYELLOW_EX,
                                    self._get_host_id(host, lock=False),
                                    IO.Style.RESET_ALL), host.ip, host.mac,
                    host.name,
                    host.pretty_status()
                ])

        table = SingleTable(table_data, 'Hosts')

        if not args.force and not table.ok:
            IO.error(
                'table does not fit terminal. resize or decrease font size. you can also force the display (--force).'
            )
            return

        IO.spacer()
        IO.print(table.table)
        IO.spacer()

    def _limit_handler(self, args):
        """
        Handles 'limit' command-line argument
        Limits bandwith of host to specified rate
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is None or len(hosts) == 0:
            return

        try:
            rate = BitRate.from_rate_string(args.rate)
        except Exception:
            IO.error('limit rate is invalid.')
            return

        direction = self._parse_direction_args(args)
        discordText = "```"

        for host in hosts:
            self.arp_spoofer.add(host)
            self.limiter.limit(host, direction, rate)
            self.bandwidth_monitor.add(host)

            IO.ok('{}{}{r} {} {}limited{r} to {}.'.format(
                IO.Fore.LIGHTYELLOW_EX,
                host.ip,
                Direction.pretty_direction(direction),
                IO.Fore.LIGHTRED_EX,
                rate,
                r=IO.Style.RESET_ALL))
            discordText += '{} pada IP {} dilimit menjadi {}\n'.format(
                Direction.pretty_direction(direction), host.ip, rate)

        discordText += '```'
        IO.discord(discordText)

    def _block_handler(self, args):
        """
        Handles 'block' command-line argument
        Blocks internet communication for host
        """
        hosts = self._get_hosts_by_ids(args.id)
        direction = self._parse_direction_args(args)
        discordText = "```"

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                if not host.spoofed:
                    self.arp_spoofer.add(host)

                self.limiter.block(host, direction)
                self.bandwidth_monitor.add(host)
                IO.ok('{}{}{r} {} {}blocked{r}.'.format(
                    IO.Fore.LIGHTYELLOW_EX,
                    host.ip,
                    Direction.pretty_direction(direction),
                    IO.Fore.RED,
                    r=IO.Style.RESET_ALL))
                discordText += '{} pada IP {} diblokir\n'.format(
                    Direction.pretty_direction(direction), host.ip)

        discordText += '```'
        if hosts is not None and len(hosts) > 0:
            IO.discord(discordText)

    def _free_handler(self, args):
        """
        Handles 'free' command-line argument
        Frees the host from all limitations
        """
        hosts = self._get_hosts_by_ids(args.id)
        discordText = "```"

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                self._free_host(host)
                discordText += 'IP {} dibebaskan dari limitasi\n'.format(
                    host.ip)

        discordText += "```"
        if hosts is not None and len(hosts) > 0:
            IO.discord(discordText)

    def _remove_handler(self, args):
        hosts = self._get_hosts_by_ids(args.id)
        discordText = "```"

        if hosts is not None and len(hosts) > 0:
            for host in hosts:
                self._free_host(host)
                discordText += 'IP {} dihapus dari list\n'.format(host.ip)
            self.hosts = [host for host in self.hosts if host not in hosts]

        discordText += "```"
        if hosts is not None and len(hosts) > 0:
            IO.discord(discordText)

    def _add_handler(self, args):
        """
        Handles 'add' command-line argument
        Adds custom host to host list
        """
        ip = args.ip
        if not netutils.validate_ip_address(ip):
            IO.error('invalid ip address.')
            return

        if args.mac:
            mac = args.mac
            if not netutils.validate_mac_address(mac):
                IO.error('invalid mac address.')
                return
        else:
            mac = netutils.get_mac_by_ip(self.interface, ip)
            if mac is None:
                IO.error(
                    'unable to resolve mac address. specify manually (--mac).')
                return

        name = None
        try:
            host_info = socket.gethostbyaddr(ip)
            name = None if host_info is None else host_info[0]
        except socket.herror:
            pass

        host = Host(ip, mac, name)

        with self.hosts_lock:
            if host in self.hosts:
                IO.error('host does already exist.')
                return

            self.hosts.append(host)

        IO.ok('host added.')
        IO.discord("""
```
IP: {}
MAC: {}
NAME: {}
Berhasil ditambahkan
```
            """.format(host.ip, host.mac, host.name))

    def _monitor_handler(self, args):
        """
        Handles 'monitor' command-line argument
        Monitors hosts bandwidth usage
        """
        def get_bandwidth_results():
            with self.hosts_lock:
                return [
                    x for x in [(y, self.bandwidth_monitor.get(y))
                                for y in self.hosts] if x[1] is not None
                ]

        def display(stdscr, interval):
            host_results = get_bandwidth_results()
            hname_max_len = max([len(x[0].name) for x in host_results])

            header_off = [('ID', 5), ('IP address', 18),
                          ('Hostname', hname_max_len + 2),
                          ('Current (per s)', 20), ('Total', 16),
                          ('Packets', 0)]

            y_rst = 1
            x_rst = 2

            while True:
                y_off = y_rst
                x_off = x_rst

                stdscr.clear()

                for header in header_off:
                    stdscr.addstr(y_off, x_off, header[0])
                    x_off += header[1]

                y_off += 2
                x_off = x_rst

                for host, result in host_results:
                    result_data = [
                        str(self._get_host_id(host)), host.ip, host.name,
                        '{}↑ {}↓'.format(result.upload_rate,
                                         result.download_rate),
                        '{}↑ {}↓'.format(result.upload_total_size,
                                         result.download_total_size),
                        '{}↑ {}↓'.format(result.upload_total_count,
                                         result.download_total_count)
                    ]

                    for j, string in enumerate(result_data):
                        stdscr.addstr(y_off, x_off, string)
                        x_off += header_off[j][1]

                    y_off += 1
                    x_off = x_rst

                y_off += 2
                stdscr.addstr(y_off, x_off, 'press \'ctrl+c\' to exit.')

                try:
                    stdscr.refresh()
                    time.sleep(interval)
                    host_results = get_bandwidth_results()
                except KeyboardInterrupt:
                    return

        interval = 0.5  # in s
        if args.interval:
            if not args.interval.isdigit():
                IO.error('invalid interval.')
                return

            interval = int(args.interval) / 1000  # from ms to s

        if len(get_bandwidth_results()) == 0:
            IO.error('no hosts to be monitored.')
            return

        try:
            curses.wrapper(display, interval)
        except curses.error:
            IO.error('monitor error occurred. maybe terminal too small?')

    def _analyze_handler(self, args):
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is None or len(hosts) == 0:
            IO.error('no hosts to be analyzed.')
            return

        duration = 30  # in s
        if args.duration:
            if not args.duration.isdigit():
                IO.error('invalid duration.')
                return

            duration = int(args.duration)

        hosts_to_be_freed = set()
        host_values = {}

        for host in hosts:
            if not host.spoofed:
                hosts_to_be_freed.add(host)

            self.arp_spoofer.add(host)
            self.bandwidth_monitor.add(host)

            host_result = self.bandwidth_monitor.get(host)
            host_values[host] = {}
            host_values[host]['prev'] = (host_result.upload_total_size,
                                         host_result.download_total_size)

        IO.ok('analyzing traffic for {}s.'.format(duration))
        time.sleep(duration)

        error_occurred = False
        for host in hosts:
            host_result = self.bandwidth_monitor.get(host)

            if host_result is None:
                # host reconnected during analysis
                IO.error('host reconnected during analysis.')
                error_occurred = True
            else:
                host_values[host]['current'] = (
                    host_result.upload_total_size,
                    host_result.download_total_size)

        IO.ok('cleaning up...')
        for host in hosts_to_be_freed:
            self._free_host(host)

        if error_occurred:
            return

        upload_chart = BarChart(max_bar_length=29)
        download_chart = BarChart(max_bar_length=29)

        for host in hosts:
            upload_value = host_values[host]['current'][0] - host_values[host][
                'prev'][0]
            download_value = host_values[host]['current'][1] - host_values[
                host]['prev'][1]

            prefix = '{}{}{} ({}, {})'.format(IO.Fore.LIGHTYELLOW_EX,
                                              self._get_host_id(host),
                                              IO.Style.RESET_ALL, host.ip,
                                              host.name)

            upload_chart.add_value(upload_value.value, prefix, upload_value)
            download_chart.add_value(download_value.value, prefix,
                                     download_value)

        upload_table = SingleTable([[upload_chart.get()]], 'Upload')
        download_table = SingleTable([[download_chart.get()]], 'Download')

        upload_table.inner_heading_row_border = False
        download_table.inner_heading_row_border = False

        IO.spacer()
        IO.print(upload_table.table)
        IO.print(download_table.table)
        IO.spacer()

    def _watch_handler(self, args):
        if len(args) == 0:
            watch_table_data = [[
                '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
                '{}IP address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
                '{}MAC address{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
            ]]

            set_table_data = [[
                '{}Attribute{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
                '{}Value{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
            ]]

            hist_table_data = [[
                '{}ID{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL),
                '{}Old IP address{}'.format(IO.Style.BRIGHT,
                                            IO.Style.RESET_ALL),
                '{}New IP address{}'.format(IO.Style.BRIGHT,
                                            IO.Style.RESET_ALL),
                '{}Time{}'.format(IO.Style.BRIGHT, IO.Style.RESET_ALL)
            ]]

            iprange = self.host_watcher.iprange
            interval = self.host_watcher.interval

            set_table_data.append([
                '{}range{}'.format(IO.Fore.LIGHTYELLOW_EX, IO.Style.RESET_ALL),
                '{} addresses'.format(len(iprange))
                if iprange is not None else 'default'
            ])

            set_table_data.append([
                '{}interval{}'.format(IO.Fore.LIGHTYELLOW_EX,
                                      IO.Style.RESET_ALL),
                '{}s'.format(interval)
            ])

            for host in self.host_watcher.hosts:
                watch_table_data.append([
                    '{}{}{}'.format(IO.Fore.LIGHTYELLOW_EX,
                                    self._get_host_id(host),
                                    IO.Style.RESET_ALL), host.ip, host.mac
                ])

            for recon in self.host_watcher.log_list:
                hist_table_data.append([
                    recon['old'].mac, recon['old'].ip, recon['new'].ip,
                    recon['time']
                ])

            watch_table = SingleTable(watch_table_data, "Watchlist")
            set_table = SingleTable(set_table_data, "Settings")
            hist_table = SingleTable(hist_table_data, 'Reconnection History')

            IO.spacer()
            IO.print(watch_table.table)
            IO.spacer()
            IO.print(set_table.table)
            IO.spacer()
            IO.print(hist_table.table)
            IO.spacer()

    def _watch_add_handler(self, args):
        """
        Handles 'watch add' command-line argument
        Adds host to the reconnection watch list
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is None or len(hosts) == 0:
            return

        for host in hosts:
            self.host_watcher.add(host)

    def _watch_remove_handler(self, args):
        """
        Handles 'watch remove' command-line argument
        Removes host from the reconnection watch list
        """
        hosts = self._get_hosts_by_ids(args.id)
        if hosts is None or len(hosts) == 0:
            return

        for host in hosts:
            self.host_watcher.remove(host)

    def _watch_set_handler(self, args):
        """
        Handles 'watch set' command-line argument
        Modifies settings of the reconnection reconnection watcher
        """
        if args.attribute.lower() in ('range', 'iprange', 'ip_range'):
            iprange = self._parse_iprange(args.value)
            if iprange is not None:
                self.host_watcher.iprange = iprange
            else:
                IO.error('invalid ip range.')
        elif args.attribute.lower() in ('interval'):
            if args.value.isdigit():
                self.host_watcher.interval = int(args.value)
            else:
                IO.error('invalid interval.')
        else:
            IO.error('{}{}{} is an invalid settings attribute.'.format(
                IO.Fore.LIGHTYELLOW_EX, args.attribute, IO.Style.RESET_ALL))

    def _reconnect_callback(self, old_host, new_host):
        """
        Callback that is called when a watched host reconnects
        Method will run in a separate thread
        """
        with self.hosts_lock:
            if old_host in self.hosts:
                self.hosts[self.hosts.index(old_host)] = new_host
            else:
                return

        self.arp_spoofer.remove(old_host, restore=False)
        self.arp_spoofer.add(new_host)

        self.host_watcher.remove(old_host)
        self.host_watcher.add(new_host)

        self.limiter.replace(old_host, new_host)
        self.bandwidth_monitor.replace(old_host, new_host)

    def _clear_handler(self, args):
        """
        Handler for the 'clear' command-line argument
        Clears the terminal window and re-prints the banner
        """
        IO.clear()
        IO.print(get_main_banner(self.version))
        self._print_help_reminder()

    def _help_handler(self, args):
        """
        Handles 'help' command-line argument
        Prints help message including commands and usage
        """
        spaces = ' ' * 35

        IO.print("""
{y}scan (--range [IP range]){r}{}scans for online hosts on your network.
{s}required to find the hosts you want to limit.
{b}{s}e.g.: scan
{s}      scan --range 192.168.178.1-192.168.178.50
{s}      scan --range 192.168.178.1/24{r}

{y}hosts (--force){r}{}lists all scanned hosts.
{s}contains host information, including IDs.

{y}auto [usage] [rate]{r}{}Limit bandwidth if host(s)
{y}     (--interval [time in ms]){r}{}reached maximum usage
{b}{s}e.g.: auto 1gbit 1mbit
{s}      auto 500mbit 200kbit --interval 600{r}

{y}limit [ID1,ID2,...] [rate]{r}{}limits bandwith of host(s) (uload/dload).
{y}      (--upload) (--download){r}{}{b}e.g.: limit 4 100kbit
{s}      limit 2,3,4 1gbit --download
{s}      limit all 200kbit --upload{r}

{y}block [ID1,ID2,...]{r}{}blocks internet access of host(s).
{y}      (--upload) (--download){r}{}{b}e.g.: block 3,2
{s}      block all --upload{r}

{y}free [ID1,ID2,...]{r}{}unlimits/unblocks host(s).
{b}{s}e.g.: free 3
{s}      free all{r}

{y}add [IP] (--mac [MAC]){r}{}adds custom host to host list.
{s}mac resolved automatically.
{b}{s}e.g.: add 192.168.178.24
{s}      add 192.168.1.50 --mac 1c:fc:bc:2d:a6:37{r}

{y}remove [ID1,ID2,...]{r}{}remove host(s) from list.
{b}{s}e.g.: remove 0,1
{s}      remove all{r} 

{y}monitor (--interval [time in ms]){r}{}monitors bandwidth usage of limited host(s).
{b}{s}e.g.: monitor --interval 600{r}

{y}analyze [ID1,ID2,...]{r}{}analyzes traffic of host(s) without limiting
{y}        (--duration [time in s]){r}{}to determine who uses how much bandwidth.
{b}{s}e.g.: analyze 2,3 --duration 120{r}

{y}watch{r}{}detects host reconnects with different IP.
{y}watch add [ID1,ID2,...]{r}{}adds host to the reconnection watchlist.
{b}{s}e.g.: watch add 3,4{r}
{y}watch remove [ID1,ID2,...]{r}{}removes host from the reconnection watchlist.
{b}{s}e.g.: watch remove all{r}
{y}watch set [attr] [value]{r}{}changes reconnect watch settings.
{b}{s}e.g.: watch set interval 120{r}

{y}clear{r}{}clears the terminal window.

{y}quit{r}{}quits the application.
            """.format(spaces[len('scan (--range [IP range])'):],
                       spaces[len('hosts (--force)'):],
                       spaces[len('auto [usage] [rate]'):],
                       spaces[len('     (--interval [time in ms])'):],
                       spaces[len('limit [ID1,ID2,...] [rate]'):],
                       spaces[len('      (--upload) (--download)'):],
                       spaces[len('block [ID1,ID2,...]'):],
                       spaces[len('      (--upload) (--download)'):],
                       spaces[len('free [ID1,ID2,...]'):],
                       spaces[len('add [IP] (--mac [MAC])'):],
                       spaces[len('remove [ID1,ID2,...]'):],
                       spaces[len('monitor (--interval [time in ms])'):],
                       spaces[len('analyze [ID1,ID2,...]'):],
                       spaces[len('        (--duration [time in s])'):],
                       spaces[len('watch'):],
                       spaces[len('watch add [ID1,ID2,...]'):],
                       spaces[len('watch remove [ID1,ID2,...]'):],
                       spaces[len('watch set [attr] [value]'):],
                       spaces[len('clear'):],
                       spaces[len('quit'):],
                       y=IO.Fore.LIGHTYELLOW_EX,
                       r=IO.Style.RESET_ALL,
                       b=IO.Style.BRIGHT,
                       s=spaces))

    def _quit_handler(self, args):
        self.interrupt_handler(False)
        self.stop()

    def _get_host_id(self, host, lock=True):
        ret = None

        if lock:
            self.hosts_lock.acquire()

        for i, host_ in enumerate(self.hosts):
            if host_ == host:
                ret = i
                break

        if lock:
            self.hosts_lock.release()

        return ret

    def _print_help_reminder(self):
        IO.print(
            'type {Y}help{R} or {Y}?{R} to show command information.'.format(
                Y=IO.Fore.LIGHTYELLOW_EX, R=IO.Style.RESET_ALL))

    def _get_hosts_by_ids(self, ids_string):
        if ids_string == 'all':
            with self.hosts_lock:
                return self.hosts.copy()

        ids = ids_string.split(',')
        hosts = set()

        with self.hosts_lock:
            for id_ in ids:
                is_mac = netutils.validate_mac_address(id_)
                is_ip = netutils.validate_ip_address(id_)
                is_id_ = id_.isdigit()

                if not is_mac and not is_ip and not is_id_:
                    IO.error(
                        'invalid identifier(s): \'{}\'.'.format(ids_string))
                    return

                if is_mac or is_ip:
                    found = False
                    for host in self.hosts:
                        if host.mac == id_.lower() or host.ip == id_:
                            found = True
                            hosts.add(host)
                            break
                    if not found:
                        IO.error('no host matching {}{}{}.'.format(
                            IO.Fore.LIGHTYELLOW_EX, id_, IO.Style.RESET_ALL))
                        return
                else:
                    id_ = int(id_)
                    if len(self.hosts) == 0 or id_ not in range(len(
                            self.hosts)):
                        IO.error('no host with id {}{}{}.'.format(
                            IO.Fore.LIGHTYELLOW_EX, id_, IO.Style.RESET_ALL))
                        return
                    hosts.add(self.hosts[id_])

        return hosts

    def _parse_direction_args(self, args):
        direction = Direction.NONE

        if args.upload:
            direction |= Direction.OUTGOING
        if args.download:
            direction |= Direction.INCOMING

        return Direction.BOTH if direction == Direction.NONE else direction

    def _parse_iprange(self, range):
        try:
            if '-' in range:
                return list(netaddr.iter_iprange(*range.split('-')))
            else:
                return list(netaddr.IPNetwork(range))
        except netaddr.core.AddrFormatError:
            return

    def _free_host(self, host):
        """
        Stops ARP spoofing and unlimits host
        """
        if host.spoofed:
            self.arp_spoofer.remove(host)
            self.limiter.unlimit(host, Direction.BOTH)
            self.bandwidth_monitor.remove(host)
            self.host_watcher.remove(host)