ability to have a random string in the resource

src/common/config.py

@@ -325,7 +325,7 @@ class Config:
                     'client_cert_encrypted': [ opt_bool, False, '', False ],
                     'savepass': [ opt_bool, False ],
                     'password': [ opt_str, '' ],
-                    'resource': [ opt_str, 'gajim', '', True ],
+                    'resource': [ opt_str, 'gajim.$rand', '', True ],
                     'priority': [ opt_int, 5, '', True ],
                     'adjust_priority_with_status': [ opt_bool, True, _('Priority will change automatically according to your status. Priorities are defined in autopriority_* options.') ],
                     'autopriority_online': [ opt_int, 50],

src/common/connection.py

@@ -36,7 +36,7 @@ import os
 import random
 import socket
 import operator
-
+import string
 import time
 import locale
 import hmac
@@ -182,8 +182,10 @@ class CommonConnection:
         resource = gajim.config.get_per('accounts', self.name, 'resource')
         # All valid resource substitution strings should be added to this hash.
         if resource:
+            rand = ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(8))
             resource = Template(resource).safe_substitute({
-                    'hostname': socket.gethostname()
+                    'hostname': socket.gethostname(),
+                    'rand': rand
             })
         return resource