migration: T6007: convert all migration scripts to load as module

5 files changed, 122 insertions, 202 deletions

diff --git a/src/migration-scripts/pptp/0-to-1 b/src/migration-scripts/pptp/0-to-1
index 1b7697c11..dd0b6f57e 100755..100644
--- a/src/migration-scripts/pptp/0-to-1
+++ b/src/migration-scripts/pptp/0-to-1
@@ -1,29 +1,31 @@
-#!/usr/bin/env python3
+# 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/>.
 
 # Unclutter PPTP VPN configuiration - move radius-server top level tag
 # nodes to a regular node which now also configures the radius source address
 # used when querying a radius server
 
-import sys
-
 from vyos.configtree import ConfigTree
 
-if len(sys.argv) < 2:
-    print("Must specify file name!")
-    sys.exit(1)
-
-file_name = sys.argv[1]
-
-with open(file_name, 'r') as f:
-    config_file = f.read()
+cfg_base = ['vpn', 'pptp', 'remote-access', 'authentication']
 
-config = ConfigTree(config_file)
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(cfg_base):
+        # Nothing to do
+        return
 
-cfg_base = ['vpn', 'pptp', 'remote-access', 'authentication']
-if not config.exists(cfg_base):
-    # Nothing to do
-    sys.exit(0)
-else:
     # Migrate "vpn pptp authentication radius-source-address" to new
     # "vpn pptp authentication radius source-address"
     if config.exists(cfg_base + ['radius-source-address']):
@@ -50,10 +52,3 @@ else:
     # delete top level tag node
     if config.exists(cfg_base + ['radius-server']):
         config.delete(cfg_base + ['radius-server'])
-
-    try:
-        with open(file_name, 'w') as f:
-            f.write(config.to_string())
-    except OSError as e:
-        print("Failed to save the modified config: {}".format(e))
-        sys.exit(1)
diff --git a/src/migration-scripts/pptp/1-to-2 b/src/migration-scripts/pptp/1-to-2
index 99624dceb..1e7601193 100755..100644
--- a/src/migration-scripts/pptp/1-to-2
+++ b/src/migration-scripts/pptp/1-to-2
@@ -1,41 +1,30 @@
-#!/usr/bin/env python3
+# Copyright 2020-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2020 VyOS maintainers and contributors
+# 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 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,
+# 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 General Public License for more details.
+# 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 General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 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 dns-servers node to common name-servers
 # - remove radios req-limit node
 
-from sys import argv, exit
-
 from vyos.configtree import ConfigTree
 
-if len(argv) < 2:
-    print("Must specify file name!")
-    exit(1)
-
-file_name = argv[1]
+base = ['vpn', 'pptp', 'remote-access']
 
-with open(file_name, 'r') as f:
-    config_file = f.read()
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
 
-config = ConfigTree(config_file)
-base = ['vpn', 'pptp', 'remote-access']
-if not config.exists(base):
-    # Nothing to do
-    exit(0)
-else:
     # Migrate IPv4 DNS servers
     dns_base = base + ['dns-servers']
     if config.exists(dns_base):
@@ -62,10 +51,3 @@ else:
         for server in config.list_nodes(radius_base + ['server']):
             if config.exists(radius_base + ['server', server, 'req-limit']):
                 config.delete(radius_base + ['server', server, 'req-limit'])
-
-    try:
-        with open(file_name, 'w') as f:
-            f.write(config.to_string())
-    except OSError as e:
-        print("Failed to save the modified config: {}".format(e))
-        exit(1)
diff --git a/src/migration-scripts/pptp/2-to-3 b/src/migration-scripts/pptp/2-to-3
index 42c4dedf4..8b0d6d865 100755..100644
--- a/src/migration-scripts/pptp/2-to-3
+++ b/src/migration-scripts/pptp/2-to-3
@@ -1,73 +1,55 @@
-#!/usr/bin/env python3
+# Copyright 2023-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2023-2024 VyOS maintainers and contributors
+# 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 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,
+# 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 General Public License for more details.
+# 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 General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 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/>.
 
 # - move all pool to named pools
 #       'start-stop' migrate to namedpool 'default-range-pool'
 #       'default-subnet-pool' is the next pool for 'default-range-pool'
 
-from sys import argv
-from sys import exit
 from vyos.configtree import ConfigTree
 from vyos.base import Warning
 
-if len(argv) < 2:
-    print("Must specify file name!")
-    exit(1)
-
-file_name = argv[1]
-
-with open(file_name, 'r') as f:
-    config_file = f.read()
-
-config = ConfigTree(config_file)
 base = ['vpn', 'pptp', 'remote-access']
 pool_base = base + ['client-ip-pool']
-if not config.exists(base):
-    exit(0)
-
-if not config.exists(pool_base):
-    exit(0)
-
-range_pool_name = 'default-range-pool'
-
-if config.exists(pool_base + ['start']) and config.exists(pool_base + ['stop']):
-    def is_legalrange(ip1: str, ip2: str, mask: str):
-        from ipaddress import IPv4Interface
-        interface1 = IPv4Interface(f'{ip1}/{mask}')
-        interface2 = IPv4Interface(f'{ip2}/{mask}')
-        return interface1.network.network_address == interface2.network.network_address and interface2.ip > interface1.ip
-
-    start_ip = config.return_value(pool_base + ['start'])
-    stop_ip = config.return_value(pool_base + ['stop'])
-    if is_legalrange(start_ip, stop_ip, '24'):
-        ip_range = f'{start_ip}-{stop_ip}'
-        config.set(pool_base + [range_pool_name, 'range'], value=ip_range, replace=False)
-        config.set(base + ['default-pool'], value=range_pool_name)
-    else:
-        Warning(
-            f'PPTP client-ip-pool range start-ip:{start_ip} and stop-ip:{stop_ip} can not be migrated.')
-
-    config.delete(pool_base + ['start'])
-    config.delete(pool_base + ['stop'])
-# format as tag node
-config.set_tag(pool_base)
 
-try:
-    with open(file_name, 'w') as f:
-        f.write(config.to_string())
-except OSError as e:
-    print("Failed to save the modified config: {}".format(e))
-    exit(1)
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        return
+
+    if not config.exists(pool_base):
+        return
+
+    range_pool_name = 'default-range-pool'
+
+    if config.exists(pool_base + ['start']) and config.exists(pool_base + ['stop']):
+        def is_legalrange(ip1: str, ip2: str, mask: str):
+            from ipaddress import IPv4Interface
+            interface1 = IPv4Interface(f'{ip1}/{mask}')
+            interface2 = IPv4Interface(f'{ip2}/{mask}')
+            return interface1.network.network_address == interface2.network.network_address and interface2.ip > interface1.ip
+
+        start_ip = config.return_value(pool_base + ['start'])
+        stop_ip = config.return_value(pool_base + ['stop'])
+        if is_legalrange(start_ip, stop_ip, '24'):
+            ip_range = f'{start_ip}-{stop_ip}'
+            config.set(pool_base + [range_pool_name, 'range'], value=ip_range, replace=False)
+            config.set(base + ['default-pool'], value=range_pool_name)
+        else:
+            Warning(
+                f'PPTP client-ip-pool range start-ip:{start_ip} and stop-ip:{stop_ip} can not be migrated.')
+
+        config.delete(pool_base + ['start'])
+        config.delete(pool_base + ['stop'])
+    # format as tag node
+    config.set_tag(pool_base)
diff --git a/src/migration-scripts/pptp/3-to-4 b/src/migration-scripts/pptp/3-to-4
index ebd343028..2dabd8475 100755..100644
--- a/src/migration-scripts/pptp/3-to-4
+++ b/src/migration-scripts/pptp/3-to-4
@@ -1,48 +1,29 @@
-#!/usr/bin/env python3
+# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2024 VyOS maintainers and contributors
+# 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 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,
+# 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 General Public License for more details.
+# 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 General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 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/>.
 
 # - Move 'mppe' from 'authentication' node to 'ppp-options'
 
-from sys import argv
-from sys import exit
 from vyos.configtree import ConfigTree
 
-if len(argv) < 2:
-    print("Must specify file name!")
-    exit(1)
-
-file_name = argv[1]
-
-with open(file_name, 'r') as f:
-    config_file = f.read()
-
-config = ConfigTree(config_file)
 base = ['vpn', 'pptp', 'remote-access']
 
-if not config.exists(base):
-    exit(0)
-
-if config.exists(base + ['authentication','mppe']):
-    mppe = config.return_value(base + ['authentication','mppe'])
-    config.set(base + ['ppp-options', 'mppe'], value=mppe, replace=True)
-    config.delete(base + ['authentication','mppe'])
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        return
 
-try:
-    with open(file_name, 'w') as f:
-        f.write(config.to_string())
-except OSError as e:
-    print("Failed to save the modified config: {}".format(e))
-    exit(1)
+    if config.exists(base + ['authentication','mppe']):
+        mppe = config.return_value(base + ['authentication','mppe'])
+        config.set(base + ['ppp-options', 'mppe'], value=mppe, replace=True)
+        config.delete(base + ['authentication','mppe'])
diff --git a/src/migration-scripts/pptp/4-to-5 b/src/migration-scripts/pptp/4-to-5
index 83632b6d8..c906f58c4 100755..100644
--- a/src/migration-scripts/pptp/4-to-5
+++ b/src/migration-scripts/pptp/4-to-5
@@ -1,63 +1,43 @@
-#!/usr/bin/env python3
+# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
-# Copyright (C) 2024 VyOS maintainers and contributors
+# 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 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,
+# 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 General Public License for more details.
+# 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 General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 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/>.
 
 # - Move 'require' from 'protocols' in  'authentication' node
 # - Migrate to new default values in radius timeout and acct-timeout
 
-from sys import argv
-from sys import exit
 from vyos.configtree import ConfigTree
 
-if len(argv) < 2:
-    print("Must specify file name!")
-    exit(1)
-
-file_name = argv[1]
-
-with open(file_name, 'r') as f:
-    config_file = f.read()
-
-config = ConfigTree(config_file)
 base = ['vpn', 'pptp', 'remote-access']
 
-if not config.exists(base):
-    exit(0)
-
-#migrate require to protocols
-require_path = base + ['authentication', 'require']
-if config.exists(require_path):
-    protocols = list(config.return_values(require_path))
-    for protocol in protocols:
-        config.set(base + ['authentication', 'protocols'], value=protocol,
-                   replace=False)
-    config.delete(require_path)
-else:
-    config.set(base + ['authentication', 'protocols'], value='mschap-v2')
-
-radius_path = base + ['authentication', 'radius']
-if config.exists(radius_path):
-    if not config.exists(radius_path + ['timeout']):
-        config.set(radius_path + ['timeout'], value=3)
-    if not config.exists(radius_path + ['acct-timeout']):
-        config.set(radius_path + ['acct-timeout'], value=3)
-
-
-try:
-    with open(file_name, 'w') as f:
-        f.write(config.to_string())
-except OSError as e:
-    print("Failed to save the modified config: {}".format(e))
-    exit(1)
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        return
+
+    #migrate require to protocols
+    require_path = base + ['authentication', 'require']
+    if config.exists(require_path):
+        protocols = list(config.return_values(require_path))
+        for protocol in protocols:
+            config.set(base + ['authentication', 'protocols'], value=protocol,
+                       replace=False)
+        config.delete(require_path)
+    else:
+        config.set(base + ['authentication', 'protocols'], value='mschap-v2')
+
+    radius_path = base + ['authentication', 'radius']
+    if config.exists(radius_path):
+        if not config.exists(radius_path + ['timeout']):
+            config.set(radius_path + ['timeout'], value=3)
+        if not config.exists(radius_path + ['acct-timeout']):
+            config.set(radius_path + ['acct-timeout'], value=3)