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	#!/usr/bin/env python3
	#
	# Copyright (C) 2020 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/>.

	# Convert "service pppoe-server authentication radius-server node key"
	# to: "service pppoe-server authentication radius-server node secret"

	from sys import argv, exit
	from vyos.configtree import ConfigTree

	if (len(argv) < 1):
	print("Must specify file name!")
	exit(1)

	file_name = argv[1]

	with open(file_name, 'r') as f:
	config_file = f.read()

	ctree = ConfigTree(config_file)
	base = ['service', 'pppoe-server', 'authentication', 'radius-server']

	if not ctree.exists(base):
	# Nothing to do
	exit(0)
	else:
	nodes = ctree.list_nodes(base)
	for node in nodes:
	if ctree.exists(base + [node, 'key']):
	val = ctree.return_value(base + [node, 'key'])
	ctree.set(base + [node, 'secret'], value=val, replace=False)
	ctree.delete(base + [node, 'key'])

	try:
	open(file_name,'w').write(ctree.to_string())
	except OSError as e:
	print("Failed to save the modified config: {}".format(e))
	exit(1)