client: support for adding clientsv0.3.3

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.

1 files changed, 9 insertions, 0 deletions

diff --git a/cli/utils.py b/cli/utils.py
index 88c15a4..185e7ee 100644
--- a/cli/utils.py
+++ b/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
+