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#!/usr/bin/env python3
#
# Copyright (C) 2018 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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 <http://www.gnu.org/licenses/>.
#
#
import sys
import os
import re
from vyos import ConfigError
from vyos.config import Config
from vyos import airbag
airbag.enable()
proxy_def = r'/etc/profile.d/vyos-system-proxy.sh'
def get_config():
c = Config()
if not c.exists('system proxy'):
return None
c.set_level('system proxy')
cnf = {
'url': None,
'port': None,
'usr': None,
'passwd': None
}
if c.exists('url'):
cnf['url'] = c.return_value('url')
if c.exists('port'):
cnf['port'] = c.return_value('port')
if c.exists('username'):
cnf['usr'] = c.return_value('username')
if c.exists('password'):
cnf['passwd'] = c.return_value('password')
return cnf
def verify(c):
if not c:
return None
if not c['url'] or not c['port']:
raise ConfigError("proxy url and port requires a value")
elif c['usr'] and not c['passwd']:
raise ConfigError("proxy password requires a value")
elif not c['usr'] and c['passwd']:
raise ConfigError("proxy username requires a value")
def generate(c):
if not c:
return None
if not c['usr']:
return str("export http_proxy={url}:{port}\nexport https_proxy=$http_proxy\nexport ftp_proxy=$http_proxy"
.format(url=c['url'], port=c['port']))
else:
return str("export http_proxy=http://{usr}:{passwd}@{url}:{port}\nexport https_proxy=$http_proxy\nexport ftp_proxy=$http_proxy"
.format(url=re.sub('http://', '', c['url']), port=c['port'], usr=c['usr'], passwd=c['passwd']))
def apply(ln):
if not ln and os.path.exists(proxy_def):
os.remove(proxy_def)
else:
open(proxy_def, 'w').write(
"# generated by system-proxy.py\n{}\n".format(ln))
if __name__ == '__main__':
try:
c = get_config()
verify(c)
ln = generate(c)
apply(ln)
except ConfigError as e:
print(e)
sys.exit(1)
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