Add 'send poweroff' command

Enables sending poweroff commands to clients.

Only arguments required are the usual client selection like:

	--client-ip
	--room-id
	--center-id

cli/cli.py

@@ -12,6 +12,7 @@ from cli.objects.modes import OgModes
 from cli.objects.wol import OgWol
 from cli.objects.images import OgImage
 from cli.objects.disks import OgDisk
+from cli.objects.poweroff import OgPoweroff
 import argparse
 import requests
 import sys
@@ -82,13 +83,15 @@ class OgCLI():
 			OgModes.set_modes(self.rest, args[1:])
 
 	def send(self, args):
-		choices = ['wol']
+		choices = ['wol', 'poweroff']
 		parser = argparse.ArgumentParser(prog='ogcli send')
 		parser.add_argument('send_obj', choices=choices)
 		parsed_args = parser.parse_args([args[0]])
 
 		if parsed_args.send_obj == 'wol':
 			OgWol.send_wol(self.rest, args[1:])
+		elif parsed_args.send_obj == 'poweroff':
+			OgPoweroff.send_poweroff(self.rest, args[1:])
 
 	def restore(self, args):
 		choices = ['image']

cli/objects/poweroff.py

@@ -0,0 +1,56 @@
+#
+# Copyright (C) 2021 Soleta Networks <info@soleta.eu>
+#
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the
+# Free Software Foundation, version 3.
+#
+
+from cli.utils import *
+
+import argparse
+
+class OgPoweroff():
+
+	@staticmethod
+	def send_poweroff(rest, args):
+		parser = argparse.ArgumentParser()
+		group = parser.add_argument_group('clients', 'Client selection options')
+		group.add_argument('--center-id',
+				   type=int,
+				   action='append',
+				   default=[],
+				   required=False,
+				   help='Clients from given center id')
+		group.add_argument('--room-id',
+				   type=int,
+				   action='append',
+				   default=[],
+				   required=False,
+				   help='Clients from given room id')
+		group.add_argument('--client-ip',
+				   action='append',
+				   default=[],
+				   required=False,
+				   help='Specific client IP')
+		parsed_args = parser.parse_args(args)
+
+		r = rest.get('/scopes')
+		scopes = r.json()
+		ips = set()
+
+		for center in parsed_args.center_id:
+			center_scope = scope_lookup(center, 'center', scopes)
+			ips.update(ips_in_scope(center_scope))
+		for room in parsed_args.room_id:
+			room_scope = scope_lookup(room, 'room', scopes)
+			ips.update(ips_in_scope(room_scope))
+		for l in parsed_args.client_ip:
+			ips.add(l)
+
+		if not ips:
+			print("No clients found")
+			return None
+
+		payload = {'clients': list(ips)}
+		r = rest.post('/poweroff', payload=payload)