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# Copyright 2018-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library.  If not, see <http://www.gnu.org/licenses/>.

# migrate old style `webproxy proxy-bypass 1.2.3.4/24`
# to new style `webproxy whitelist destination-address 1.2.3.4/24`

from vyos.configtree import ConfigTree

cfg_webproxy_base = ['service', 'webproxy']

def migrate(config: ConfigTree) -> None:
    if not config.exists(cfg_webproxy_base + ['proxy-bypass']):
        # Nothing to do
        return

    bypass_addresses = config.return_values(cfg_webproxy_base + ['proxy-bypass'])
    # delete old configuration node
    config.delete(cfg_webproxy_base + ['proxy-bypass'])
    for bypass_address in bypass_addresses:
        # add data to new configuration node
        config.set(cfg_webproxy_base + ['whitelist', 'destination-address'], value=bypass_address, replace=False)