Merge branch 'message-types'

README.md

@@ -185,7 +185,7 @@ It also manages the FSM.
 As you can see this file is set up to start with the container in `solvable/supervisor/tfw_server.conf`.
 
 `event_handler_main.py` contains example usage of our pre-defined event handlers written in Python3.
-As you can see they run in a separate process (set up in `solvable/supervisor/event_handlers.conf`).
+As you can see they run in a separate process (set up in `solvable/supervisor/event_handler_main.conf`).
 These event handlers could be implemented in any language that has ZMQ bindings.
 
 Note that you don't have to use all our event handlers.
@@ -204,7 +204,7 @@ When creating your own challenge the process should be the following:
     - Set it up to run: `solvable/supervisor/tfw_server.conf`
 4. Create event handlers connecting to the `TFWServer` handling events you want to process:
     - Create an event handler server: `solvable/src/event_handler_main.py`
-    - Set it up to run: `solvable/supervisor/event_handlers.conf`
+    - Set it up to run: `solvable/supervisor/event_handler_main.conf`
 5. Modify the frontend in `solvable/frontend` to fit your challenge
     - This usually involves using our pre-made components
     - And perhaps doing some of your own stuff, like:

solvable/src/event_handler_main.py

@@ -2,7 +2,8 @@ from ast import literal_eval
 
 from tornado.ioloop import IOLoop
 
-from tfw.components import IdeEventHandler, TerminalEventHandler, ProcessManagingEventHandler, BashMonitor
+from tfw.components import IdeEventHandler, TerminalEventHandler
+from tfw.components import ProcessManagingEventHandler, BashMonitor
 from tfw.components import TerminalCommands, LogMonitoringEventHandler
 from tfw.networking import MessageSender, TFWServerConnector
 from tfw.config import TFWENV
@@ -13,6 +14,10 @@ LOG = logging.getLogger(__name__)
 
 
 def cenator(history):
+    """
+    Logs commands executed in terminal to messages.
+    !! Please remove from production code. !!
+    """
     LOG.debug('User executed command: "%s"', history[-1])
     MessageSender().send('JOHN CENA', f'You\'ve executed "{history[-1]}"')
 
@@ -20,7 +25,7 @@ def cenator(history):
 class TestCommands(TerminalCommands):
     """
     Some example commands useful for debugging.
-    Please remove from production code and inherit your own
+    !! Please remove from production code !! and inherit your own
     class from TerminalCommands if you need to define custom
     commands in your challenge.
     """
@@ -38,7 +43,7 @@ class TestCommands(TerminalCommands):
                 'key': 'shell',
                 'data': {
                     'command': 'write',
-                    'shellcmd': f'sendmessage {message_template}'
+                    'value': f'sendmessage {message_template}'
                 }
             })
         else:
@@ -50,20 +55,22 @@ class TestCommands(TerminalCommands):
         This can speed up development when combined with mounting
         volumes from host to container.
         """
-        seppuku = ('nohup sh -c "supervisorctl restart tfwserver event_handler_main" &> /dev/null & '
-                   'clear && echo "Committed seppuku! :)" && sleep infinity')
+        seppuku = (
+            'nohup sh -c "supervisorctl restart tfwserver event_handler_main" &> /dev/null & '
+            'clear && echo "Committed seppuku! :)" && sleep infinity'
+        )
         uplink = TFWServerConnector()
         uplink.send_to_eventhandler({
             'key': 'shell',
             'data': {
                 'command': 'write',
-                'shellcmd': f'{seppuku}\n'
+                'value': f'{seppuku}\n'
             }
         })
         uplink.send({
             'key': 'dashboard',
             'data': {
-                'command': 'reload_frontend'
+                'command': 'reloadFrontend'
             }
         })
 
@@ -73,8 +80,7 @@ if __name__ == '__main__':
         key='ide',
         allowed_directories=[TFWENV.IDE_WD, TFWENV.WEBSERVICE_DIR],
         directory=TFWENV.IDE_WD,
-        exclude=['*.pyc'],
-        additional_watched_directories=[TFWENV.WEBSERVICE_DIR]
+        exclude=['*.pyc']
     )
     terminal = TerminalEventHandler(  # Web shell backend
         key='shell',
@@ -92,10 +98,9 @@ if __name__ == '__main__':
     )
     eventhandlers = {ide, terminal, processmanager, logmonitor}
 
-    terminal.historymonitor.subscribe_callback(cenator)
-
     commands = TestCommands(bashrc=f'/home/{TAOENV.USER}/.bashrc')
     terminal.historymonitor.subscribe_callback(commands.callback)
+    terminal.historymonitor.subscribe_callback(cenator)
 
     try:
         IOLoop.instance().start()

solvable/src/webservice/model.py

@@ -6,9 +6,11 @@ from sqlalchemy.orm import sessionmaker
 
 
 engine = create_engine('sqlite:///db.db', convert_unicode=True)
-session_factory = sessionmaker(autocommit=False,
-                               autoflush=False,
-                               bind=engine)
+session_factory = sessionmaker(
+    autocommit=False,
+    autoflush=False,
+    bind=engine
+)
 
 
 @contextmanager

solvable/src/webservice/server.py

@@ -10,7 +10,9 @@ BASEURL = getenv('BASEURL', '')
 init_db()
 app = Flask(__name__)
 app.secret_key = urandom(32)
-app.jinja_env.globals.update(get_url=lambda endpoint: f'{BASEURL}{url_for(endpoint)}') # pylint: disable=no-member
+app.jinja_env.globals.update(  # pylint: disable=no-member
+    get_url=lambda endpoint: f'{BASEURL}{url_for(endpoint)}'
+)
 
 
 def get_db_session():
@@ -47,22 +49,33 @@ def index():
 @app.route('/register', methods=['GET', 'POST'])
 def register():
     if request.method == 'POST':
-        if not all([request.form.get('username'),
-                    request.form.get('password'),
-                    request.form.get('passwordconfirm')]):
+        form_filled_out = all([
+            request.form.get('username'),
+            request.form.get('password'),
+            request.form.get('passwordconfirm')
+        ])
+
+        if not form_filled_out:
             return render_template('register.html', alert='You need to fill everything.')
         if request.form['password'] != request.form['passwordconfirm']:
             return render_template('register.html', alert='Passwords do not match! Please try again.')
 
         try:
-            UserOps(request.form.get('username'),
-                    request.form.get('password'),
-                    get_db_session()).register()
+            UserOps(
+                request.form.get('username'),
+                request.form.get('password'),
+                get_db_session()
+            ).register()
         except UserExistsError:
             return render_template('register.html', alert='Username already in use.')
 
-        return render_template('login.html', success=('Account "{}" successfully registered. '
-                                                      'You can log in now!'.format(request.form['username'])))
+        return render_template(
+            'login.html',
+            success=(
+                'Account "{}" successfully registered. '
+                'You can log in now!'.format(request.form['username'])
+            )
+        )
 
     return render_template('register.html')
 

solvable/src/webservice/user_ops.py

@@ -23,9 +23,16 @@ class UserOps:
         :raises InvalidCredentialsError:
             User does not exist or password provided is invalid
         """
-        user = self.db_session.query(User).filter(User.username == self.username).first()
+        user = self.db_session.query(User).filter(
+            User.username == self.username
+        ).first()
 
-        if not user or not PasswordHasher.verify(self.password, user.passwordhash):
+        passw_is_correct = PasswordHasher.verify(
+            self.password,
+            user.passwordhash
+        )
+
+        if not user or not passw_is_correct:
             self.log(f'Invalid credentials for user "{self.username}"!')
             raise InvalidCredentialsError
 
@@ -39,11 +46,17 @@ class UserOps:
         :raises UserExistsError:
             A user with the provided username already exists
         """
-        if self.db_session.query(User).filter(User.username == self.username).all():
+        existing_users = self.db_session.query(User).filter(
+            User.username == self.username
+        ).all()
+
+        if existing_users:
             raise UserExistsError
 
-        user = User(username=self.username,
-                    passwordhash=PasswordHasher.hash(self.password))
+        user = User(
+            username=self.username,
+            passwordhash=PasswordHasher.hash(self.password)
+        )
         self.db_session.add(user)
         self.db_session.commit()