add or delete users from a file

admin.py

@@ -89,7 +89,7 @@ if action not in ['list-users', 'create-users', 'create-super-user', 'list-class
 urlTo = None
 frontEndUrl = None
 verbose = False
-
+filename = None
 
 # retrieve the optional arguments (--url-to, --front-end-url)
 for i in range(2, len(sys.argv)):
@@ -99,6 +99,8 @@ for i in range(2, len(sys.argv)):
         urlTo = sys.argv[i]
     elif sys.argv[i-1] == '--front-end-url':
         frontEndUrl = sys.argv[i]
+    elif sys.argv[i-1] == '-f':
+        filename = sys.argv[i]
     elif sys.argv[i] == '--help':
         print(full_help)
         exit(0)
@@ -112,6 +114,14 @@ def printv(*args):
     if verbose:
         print(*args, file=sys.stderr)
 
+def get_users_from_file(filename):
+    f = open(filename, 'r')
+    users = f.read().split('\n')
+    #filter empty lines
+    users = filter(lambda x: x.strip() != '', users)
+    #trim all the users
+    users = list(map(lambda x: x.strip(), users))
+    return users
 
 sio = socketio.Client()
 @sio.event
@@ -196,7 +206,13 @@ def connected_as(data):
             print('Usage: python3 admin.py create-users <users> or -f <file>', file=sys.stderr)
             sio.disconnect()
             exit(1)
-        users = sys.argv[2].split(',')
+        if filename is not None:
+            users = get_users_from_file(filename)
+        else:
+            users = sys.argv[2].split(',')
+        printv('creating '+str(len(users))+' users')
+        printv("\n".join(users[:5]))
+        printv('...' if len(users) > 5 else '')
         sio.emit('sudo', ('create-users', users))
 
     elif action == 'delete-users':
@@ -205,7 +221,13 @@ def connected_as(data):
             sio.disconnect()
             exit(1)
         global users_to_delete
-        users_to_delete = sys.argv[2].split(',')
+        if filename is not None:
+            users_to_delete = get_users_from_file(filename)
+        else:
+            users_to_delete = sys.argv[2].split(',')
+        printv('deleting '+str(len(users_to_delete))+' users')
+        printv("\n".join(users_to_delete[:5]))
+        printv('...' if len(users_to_delete) > 5 else '')
         sio.emit('sudo', ('delete-users', users_to_delete))
     elif action == 'create-super-user':
         if len(sys.argv) < 3: