client: support for adding clients

Add a new client with command:

$ ogcli add client --repo-id <repo id>
      --netmask <netmask>
      --room-id <room id>
      --hostname <hostname>
      --mac <mac address>
      --ip <ip address>
      --boot-mode <boot mode>

For example: To add a new client with hostname "javipc", netmask
255.255.255.0, mac address a2:54:00:2e:05:7a, ip address 192.168.56.101,
assign it to repo id 1, room id 1 and set its boot mode to oglive
use:

$ ogcli add client --hostname javipc --netmask 255.255.255.0 --mac
a2:54:00:2e:05:7a --ip 192.168.56.101 --repo-id 1 --room-id 1
--boot-mode oglive

Notes:

- ogserver API REST json payload does not allow to specify a server
  (table 'entorno') for the client. It will automatically assign
  client to server with id 1

- ogserver API REST json payload specifies mac address without ':'.

- payload must contain 'netiface', ogcli specifies 'eth0' is specified
  which is the default value in netiface column in db (table 'ordenadores')

- netdriver column uses "generic" as default, this field is not used
  anymore, but it is set to "generic" by now.

- ogserver should validate that boot mode set is correct.

cli/cli.py

@@ -215,7 +215,7 @@ class OgCLI():
             OgRoom.delete_room(self.rest, args[1:])
 
     def add(self, args):
-        choices = ['server', 'repo', 'center', 'room']
+        choices = ['server', 'repo', 'center', 'room', 'client']
         parser = argparse.ArgumentParser(prog='ogcli add')
         parser.add_argument('add_obj', choices=choices)
 
@@ -233,3 +233,5 @@ class OgCLI():
             OgCenter.add_center(self.rest, args[1:])
         elif parsed_args.add_obj == 'room':
             OgRoom.add_room(self.rest, args[1:])
+        elif parsed_args.add_obj == 'client':
+            OgClient.add_client(self.rest, args[1:])

cli/objects/client.py

@@ -6,9 +6,9 @@
 # (at your option) any later version.
 
 import argparse
+import requests
 
-from cli.utils import print_json
-
+from cli.utils import print_json, check_address, check_mac_address
 
 class OgClient():
 
@@ -56,3 +56,68 @@ class OgClient():
 
         payload = {'clients': parsed_args.client_ip}
         rest.post('/refresh', payload=payload)
+
+    @staticmethod
+    def add_client(rest, args):
+        parser = argparse.ArgumentParser(prog='ogcli add client')
+        parser.add_argument('--repo-id',
+                    type=int,
+                    nargs='?',
+                    required=True,
+                    help='specify the id of the repo')
+        parser.add_argument('--netmask',
+                    nargs='?',
+                    required=True,
+                    help='specify netmask address')
+        parser.add_argument('--room-id',
+                    nargs='?',
+                    type=int,
+                    required=True,
+                    help='specify the id of the room where the client is')
+        parser.add_argument('--hostname',
+                    nargs='?',
+                    required=True,
+                    help='give a name to the client')
+        parser.add_argument('--mac',
+                    nargs='?',
+                    required=True,
+                    help='mac address should have this format xx:xx:xx:xx:xx:xx')
+        parser.add_argument('--ip',
+                    nargs='?',
+                    required=True,
+                    help='specify the ip address of the client')
+        r = rest.get('/mode')
+        boot_choices = r.json()['modes']
+        parser.add_argument('--boot-mode',
+                    nargs='?',
+                    required=True,
+                    choices=boot_choices,
+                    help='set a valid boot mode for the client')
+        parsed_args = parser.parse_args(args)
+
+        err = False
+        if not check_address(parsed_args.netmask):
+            print('netmask address is not valid', file=sys.stderr)
+            err = True
+        if not check_address(parsed_args.ip):
+            print('client\'s ip address is not valid', file=sys.stderr)
+            err = True
+        if not check_mac_address(parsed_args.mac):
+            print('client\'s mac address is not valid', file=sys.stderr)
+            err = True
+        if err:
+            parser.print_help(file=sys.stderr)
+            sys.exit(1)
+        payload = {
+            'name': parsed_args.hostname,
+            'netmask': parsed_args.netmask,
+            'ip': parsed_args.ip,
+            'mac': parsed_args.mac.replace(":", ""),
+            'repo_id': parsed_args.repo_id,
+            'room': parsed_args.room_id,
+            'boot': parsed_args.boot_mode,
+            'netiface': 'eth0',
+            'netdriver': 'generic',
+            'livedir': 'ogLive'
+        }
+        rest.post('/client/add', payload=payload)

cli/utils.py

@@ -7,6 +7,7 @@
 
 import json
 import ipaddress
+import re
 
 def scope_lookup(scope_id, scope_type, d):
     if scope_id == d.get('id') and scope_type == d.get('type'):
@@ -39,3 +40,11 @@ def check_address(addr):
         return True
     except:
         return False
+
+def check_mac_address(addr):
+    if re.match("[a-f0-9]{2}(:[a-f0-9]{2}){5}$", addr.lower()):
+        return True
+    else:
+        print(addr.lower())
+        return False
+