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#!/usr/bin/python3
# Copyright (C) 2013-2021 Daniel Baumann <daniel@debian.org>
#
# SPDX-License-Identifier: GPL-3.0+
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <https://www.gnu.org/licenses/>.
from ipaddress import IPv4Address
from json import dumps
from os import getenv
from sys import exit
from pygments import highlight
from pygments.lexers import JsonLexer
from pygments.formatters import TerminalFormatter
def v0_ipv4_address():
address = getenv('REMOTE_ADDR')
cgi = getenv('GATEWAY_INTERFACE')
try:
ip = str(IPv4Address(address))
message = 'valid IPv4 address'
status = True
except ValueError:
ip = None
message = 'invalid IPv4 address'
status = False
json = \
{
'data': {
'ipv4_address': ip,
},
'meta': {
'status': status,
'message': message,
},
}
if cgi:
print('Content-Type: application/json\n')
print(dumps(json))
else:
print(highlight(dumps(json, indent=4), JsonLexer(), TerminalFormatter()))
exit(0)
if __name__ == '__main__':
v0_ipv4_address()
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