include command to create a user

owrxadmin/__main__.py

@@ -1,2 +1,22 @@
+from owrx.version import openwebrx_version
+from owrxadmin.commands import NewUserCommand
+import argparse
+import sys
+
+
 def main():
-    print("OpenWebRX admin")
+    print("OpenWebRX admin version {version}".format(version=openwebrx_version))
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("command", help="One of the following commands: adduser, removeuser")
+    parser.add_argument("--noninteractive", action="store_true", help="Don't ask for any user input (useful for automation)")
+    parser.add_argument("-u", "--user")
+    args = parser.parse_args()
+
+    if args.command == "adduser":
+        NewUserCommand().run(args)
+    elif args.command == "removeuser":
+        print("removing user")
+    else:
+        print("Unknown command: {command}".format(command=args.command))
+        sys.exit(1)

owrxadmin/commands.py

@@ -0,0 +1,46 @@
+from abc import ABC, abstractmethod
+from getpass import getpass
+from owrx.users import UserList, User, CleartextPassword
+import sys
+import random
+import string
+
+
+class Command(ABC):
+    @abstractmethod
+    def run(self, args):
+        pass
+
+
+class NewUserCommand(Command):
+    def run(self, args):
+        if args.user:
+            username = args.user
+        else:
+            if args.noninteractive:
+                print("ERROR: User name not specified")
+                sys.exit(1)
+            else:
+                username = input("Please enter the user name: ")
+        if args.noninteractive:
+            print("Generating password for user {username}...".format(username=username))
+            password = self.getRandomPassword()
+            print('Password for {username} is "{password}".'.format(username=username, password=password))
+            # TODO implement this threat
+            print('This password is suitable for initial setup only, you will be asked to reset it on initial use.')
+            print('This password cannot be recovered from the system, please note it down now.')
+        else:
+            password = getpass("Please enter the password for {username}: ".format(username=username))
+            confirm = getpass("Please confirm password: ")
+            if password != confirm:
+                print("ERROR: Password mismatch.")
+                sys.exit(1)
+
+        print("Creating user {username}...".format(username=username))
+        userList = UserList()
+        user = User(name=username, enabled=True, password=CleartextPassword(password))
+        userList.addUser(user)
+
+    def getRandomPassword(self, length=10):
+        printable = list(string.ascii_letters) + list(string.digits)
+        return ''.join(random.choices(printable, k=length))