Make webservice run as user and use tfwconnector pip package

solvable/src/webservice/user_ops.py

@@ -1,3 +1,7 @@
+from functools import partial
+
+from tfwconnector import MessageSender
+
 from crypto import PasswordHasher
 from model import User
 from errors import InvalidCredentialsError, UserExistsError
@@ -8,6 +12,8 @@ class UserOps:
         self.username = username
         self.password = password
         self.db_session = db_session
+        self.message_sender = MessageSender()
+        self.log = partial(self.message_sender.send, 'Authenticator')
 
     def authenticate(self):
         """
@@ -20,8 +26,11 @@ class UserOps:
         user = self.db_session.query(User).filter(User.username == self.username).first()
 
         if not user or not PasswordHasher.verify(self.password, user.passwordhash):
+            self.log(f'Invalid credentials for user "{self.username}"!')
             raise InvalidCredentialsError
 
+        self.log(f'User "{self.username}" logged in!')
+
     def register(self):
         """
         Attempts to register a user.
@@ -37,3 +46,5 @@ class UserOps:
                     passwordhash=PasswordHasher.hash(self.password))
         self.db_session.add(user)
         self.db_session.commit()
+
+        self.log(f'User "{self.username}" registered!')