T4913: migrate wireless scripts to new op-mode style

(cherry picked from commit ed29faeea1354dc2bec544c63e55c1c666e0d900)

3 files changed, 191 insertions, 154 deletions

diff --git a/op-mode-definitions/show-interfaces-wireless.xml.in b/op-mode-definitions/show-interfaces-wireless.xml.in
index 27c0f43db..09c9a7895 100644
--- a/op-mode-definitions/show-interfaces-wireless.xml.in
+++ b/op-mode-definitions/show-interfaces-wireless.xml.in
@@ -20,7 +20,7 @@
                 <properties>
                   <help>Show wireless interface configuration</help>
                 </properties>
-                <command>${vyos_op_scripts_dir}/show_wireless.py --brief</command>
+                <command>${vyos_op_scripts_dir}/interfaces_wireless.py show_info</command>
               </leafNode>
             </children>
           </node>
@@ -35,15 +35,15 @@
             <children>
               <leafNode name="brief">
                 <properties>
-                  <help>Show summary of the specified wireless interface information</help>
+                  <help>Show brief summary of the specified wireless interface</help>
                 </properties>
                 <command>${vyos_op_scripts_dir}/interfaces.py show_summary --intf-name="$4" --intf-type=wireless</command>
               </leafNode>
               <node name="scan">
                 <properties>
-                  <help>Show summary of the specified wireless interface information</help>
+                  <help>Scan for networks via specified wireless interface</help>
                 </properties>
-                <command>sudo ${vyos_op_scripts_dir}/show_wireless.py --scan "$4"</command>
+                <command>sudo ${vyos_op_scripts_dir}/interfaces_wireless.py show_scan --intf-name="$4"</command>
                 <children>
                   <leafNode name="detail">
                     <properties>
@@ -57,7 +57,7 @@
                 <properties>
                   <help>Show specified Wireless interface information</help>
                 </properties>
-                <command>${vyos_op_scripts_dir}/show_wireless.py --stations "$4"</command>
+                <command>${vyos_op_scripts_dir}/interfaces_wireless.py show_stations --intf-name="$4"</command>
               </leafNode>
               <tagNode name="vif">
                 <properties>
diff --git a/src/op_mode/interfaces_wireless.py b/src/op_mode/interfaces_wireless.py
new file mode 100755
index 000000000..dfe50e2cb
--- /dev/null
+++ b/src/op_mode/interfaces_wireless.py
@@ -0,0 +1,186 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 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 re
+import sys
+import typing
+import vyos.opmode
+
+from copy import deepcopy
+from tabulate import tabulate
+from vyos.utils.process import popen
+from vyos.configquery import ConfigTreeQuery
+
+def _verify(func):
+    """Decorator checks if Wireless LAN config exists"""
+    from functools import wraps
+
+    @wraps(func)
+    def _wrapper(*args, **kwargs):
+        config = ConfigTreeQuery()
+        if not config.exists(['interfaces', 'wireless']):
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        return func(*args, **kwargs)
+    return _wrapper
+
+def _get_raw_info_data():
+    output_data = []
+
+    config = ConfigTreeQuery()
+    raw = config.get_config_dict(['interfaces', 'wireless'], effective=True,
+                                 get_first_key=True, key_mangling=('-', '_'))
+    for interface, interface_config in raw.items():
+        tmp = {'name' : interface}
+
+        if 'type' in interface_config:
+            tmp.update({'type' : interface_config['type']})
+        else:
+            tmp.update({'type' : '-'})
+
+        if 'ssid' in interface_config:
+            tmp.update({'ssid' : interface_config['ssid']})
+        else:
+            tmp.update({'ssid' : '-'})
+
+        if 'channel' in interface_config:
+            tmp.update({'channel' : interface_config['channel']})
+        else:
+            tmp.update({'channel' : '-'})
+
+        output_data.append(tmp)
+
+    return output_data
+
+def _get_formatted_info_output(raw_data):
+    output=[]
+    for ssid in raw_data:
+        output.append([ssid['name'], ssid['type'], ssid['ssid'], ssid['channel']])
+
+    headers = ["Interface", "Type", "SSID", "Channel"]
+    print(tabulate(output, headers, numalign="left"))
+
+def _get_raw_scan_data(intf_name):
+    # XXX: This ignores errors
+    tmp, _ = popen(f'iw dev {intf_name} scan ap-force')
+    networks = []
+    data = {
+        'ssid': '',
+        'mac': '',
+        'channel': '',
+        'signal': ''
+    }
+    re_mac = re.compile(r'([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})')
+    for line in tmp.splitlines():
+        if line.startswith('BSS '):
+            ssid = deepcopy(data)
+            ssid['mac'] = re.search(re_mac, line).group()
+
+        elif line.lstrip().startswith('SSID: '):
+            # SSID can be "    SSID: WLAN-57 6405", thus strip all leading whitespaces
+            ssid['ssid'] = line.lstrip().split(':')[-1].lstrip()
+
+        elif line.lstrip().startswith('signal: '):
+            # Siganl can be "   signal: -67.00 dBm", thus strip all leading whitespaces
+            ssid['signal'] = line.lstrip().split(':')[-1].split()[0]
+
+        elif line.lstrip().startswith('DS Parameter set: channel'):
+            # Channel can be "        DS Parameter set: channel 6" , thus
+            # strip all leading whitespaces
+            ssid['channel'] = line.lstrip().split(':')[-1].split()[-1]
+            networks.append(ssid)
+            continue
+
+    return networks
+
+def _format_scan_data(raw_data):
+    output=[]
+    for ssid in raw_data:
+        output.append([ssid['mac'], ssid['ssid'], ssid['channel'], ssid['signal']])
+    headers = ["Address", "SSID", "Channel", "Signal (dbm)"]
+    return tabulate(output, headers, numalign="left")
+
+def _get_raw_station_data(intf_name):
+    # XXX: This ignores errors
+    tmp, _ = popen(f'iw dev {intf_name} station dump')
+    clients = []
+    data = {
+        'mac': '',
+        'signal': '',
+        'rx_bytes': '',
+        'rx_packets': '',
+        'tx_bytes': '',
+        'tx_packets': ''
+    }
+    re_mac = re.compile(r'([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})')
+    for line in tmp.splitlines():
+        if line.startswith('Station'):
+            client = deepcopy(data)
+            client['mac'] = re.search(re_mac, line).group()
+
+        elif line.lstrip().startswith('signal avg:'):
+            client['signal'] = line.lstrip().split(':')[-1].lstrip().split()[0]
+
+        elif line.lstrip().startswith('rx bytes:'):
+            client['rx_bytes'] = line.lstrip().split(':')[-1].lstrip()
+
+        elif line.lstrip().startswith('rx packets:'):
+            client['rx_packets'] = line.lstrip().split(':')[-1].lstrip()
+
+        elif line.lstrip().startswith('tx bytes:'):
+            client['tx_bytes'] = line.lstrip().split(':')[-1].lstrip()
+
+        elif line.lstrip().startswith('tx packets:'):
+            client['tx_packets'] = line.lstrip().split(':')[-1].lstrip()
+            clients.append(client)
+            continue
+
+    return clients
+
+def _format_station_data(raw_data):
+    output=[]
+    for ssid in raw_data:
+        output.append([ssid['mac'], ssid['signal'], ssid['rx_bytes'], ssid['rx_packets'], ssid['tx_bytes'], ssid['tx_packets']])
+    headers = ["Station", "Signal", "RX bytes", "RX packets", "TX bytes", "TX packets"]
+    return tabulate(output, headers, numalign="left")
+
+@_verify
+def show_info(raw: bool):
+    info_data = _get_raw_info_data()
+    if raw:
+        return info_data
+    return _get_formatted_info_output(info_data)
+
+def show_scan(raw: bool, intf_name: str):
+    data = _get_raw_scan_data(intf_name)
+    if raw:
+        return data
+    return _format_scan_data(data)
+
+@_verify
+def show_stations(raw: bool, intf_name: str):
+    data = _get_raw_station_data(intf_name)
+    if raw:
+        return data
+    return _format_station_data(data)
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/show_wireless.py b/src/op_mode/show_wireless.py
deleted file mode 100755
index 340163057..000000000
--- a/src/op_mode/show_wireless.py
+++ /dev/null
@@ -1,149 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2019-2023 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 argparse
-import re
-
-from sys import exit
-from copy import deepcopy
-
-from vyos.config import Config
-from vyos.utils.process import popen
-
-parser = argparse.ArgumentParser()
-parser.add_argument("-s", "--scan", help="Scan for Wireless APs on given interface, e.g. 'wlan0'")
-parser.add_argument("-b", "--brief", action="store_true", help="Show wireless configuration")
-parser.add_argument("-c", "--stations", help="Show wireless clients connected on interface, e.g. 'wlan0'")
-
-def show_brief():
-    config = Config()
-    if len(config.list_effective_nodes('interfaces wireless')) == 0:
-        print("No Wireless interfaces configured")
-        exit(0)
-
-    interfaces = []
-    for intf in config.list_effective_nodes('interfaces wireless'):
-        config.set_level(f'interfaces wireless {intf}')
-        data = { 'name': intf }
-        data['type'] = config.return_effective_value('type') or '-'
-        data['ssid'] = config.return_effective_value('ssid') or '-'
-        data['channel'] = config.return_effective_value('channel') or '-'
-        interfaces.append(data)
-
-    return interfaces
-
-def ssid_scan(intf):
-    # XXX: This ignores errors
-    tmp, _ = popen(f'/sbin/iw dev {intf} scan ap-force')
-    networks = []
-    data = {
-        'ssid': '',
-        'mac': '',
-        'channel': '',
-        'signal': ''
-    }
-    re_mac = re.compile(r'([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})')
-    for line in tmp.splitlines():
-        if line.startswith('BSS '):
-            ssid = deepcopy(data)
-            ssid['mac'] = re.search(re_mac, line).group()
-
-        elif line.lstrip().startswith('SSID: '):
-            # SSID can be "    SSID: WLAN-57 6405", thus strip all leading whitespaces
-            ssid['ssid'] = line.lstrip().split(':')[-1].lstrip()
-
-        elif line.lstrip().startswith('signal: '):
-            # Siganl can be "   signal: -67.00 dBm", thus strip all leading whitespaces
-            ssid['signal'] = line.lstrip().split(':')[-1].split()[0]
-
-        elif line.lstrip().startswith('DS Parameter set: channel'):
-            # Channel can be "        DS Parameter set: channel 6" , thus
-            # strip all leading whitespaces
-            ssid['channel'] = line.lstrip().split(':')[-1].split()[-1]
-            networks.append(ssid)
-            continue
-
-    return networks
-
-def show_clients(intf):
-    # XXX: This ignores errors
-    tmp, _ = popen(f'/sbin/iw dev {intf} station dump')
-    clients = []
-    data = {
-        'mac': '',
-        'signal': '',
-        'rx_bytes': '',
-        'rx_packets': '',
-        'tx_bytes': '',
-        'tx_packets': ''
-    }
-    re_mac = re.compile(r'([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})')
-    for line in tmp.splitlines():
-        if line.startswith('Station'):
-            client = deepcopy(data)
-            client['mac'] = re.search(re_mac, line).group()
-
-        elif line.lstrip().startswith('signal avg:'):
-            client['signal'] = line.lstrip().split(':')[-1].lstrip().split()[0]
-
-        elif line.lstrip().startswith('rx bytes:'):
-            client['rx_bytes'] = line.lstrip().split(':')[-1].lstrip()
-
-        elif line.lstrip().startswith('rx packets:'):
-            client['rx_packets'] = line.lstrip().split(':')[-1].lstrip()
-
-        elif line.lstrip().startswith('tx bytes:'):
-            client['tx_bytes'] = line.lstrip().split(':')[-1].lstrip()
-
-        elif line.lstrip().startswith('tx packets:'):
-            client['tx_packets'] = line.lstrip().split(':')[-1].lstrip()
-            clients.append(client)
-            continue
-
-    return clients
-
-if __name__ == '__main__':
-    args = parser.parse_args()
-
-    if args.scan:
-        print("Address            SSID                          Channel  Signal (dbm)")
-        for network in ssid_scan(args.scan):
-            print("{:<17}  {:<32}  {:>3}  {}".format(network['mac'],
-                                                     network['ssid'],
-                                                     network['channel'],
-                                                     network['signal']))
-        exit(0)
-
-    elif args.brief:
-        print("Interface  Type          SSID                         Channel")
-        for intf in show_brief():
-            print("{:<9}  {:<12}  {:<32} {:>3}".format(intf['name'],
-                                                      intf['type'],
-                                                      intf['ssid'],
-                                                      intf['channel']))
-        exit(0)
-
-    elif args.stations:
-        print("Station            Signal     RX: bytes    packets        TX: bytes     packets")
-        for client in show_clients(args.stations):
-            print("{:<17}  {:>3}  {:>15}  {:>9}  {:>15}  {:>10} ".format(client['mac'],
-                                                 client['signal'], client['rx_bytes'], client['rx_packets'], client['tx_bytes'], client['tx_packets']))
-
-        exit(0)
-
-    else:
-        parser.print_help()
-        exit(1)