fix(auth): missing email and username business rules

server/app.py

@@ -37,15 +37,20 @@ CORS(app, resources={r"/*": {"origins": frontend_url}})
 app.config["JWT_SECRET_KEY"] = jwt_secret_key
 app.config["JWT_ACCESS_TOKEN_EXPIRES"] = jwt_access_token_expires
 
+# Security
 bcrypt = Bcrypt(app)
 jwt = JWTManager(app)
 
+# Helper Objects
 db = PostgresConnector()
 auth_manager = AuthManager(db, bcrypt)
 dataset_manager = DatasetManager(db)
 stat_gen = StatGen()
 connectors = get_available_connectors()
-default_topic_list = json.load(open("server/topics.json"))
+
+# Default Files
+with open("server/topics.json") as f:
+    default_topic_list = json.load(f)
 
 @app.route("/register", methods=["POST"])
 def register_user():

server/core/auth.py

@@ -1,6 +1,10 @@
+import re
+
 from server.db.database import PostgresConnector
 from flask_bcrypt import Bcrypt
 
+EMAIL_REGEX = re.compile(r"[^@]+@[^@]+\.[^@]+")
+
 class AuthManager:
     def __init__(self, db: PostgresConnector, bcrypt: Bcrypt):
         self.db = db
@@ -18,6 +22,12 @@ class AuthManager:
     def register_user(self, username, email, password):
         hashed_password = self.bcrypt.generate_password_hash(password).decode("utf-8")
 
+        if len(username) < 3:
+            raise ValueError("Username must be longer than 3 characters")
+        
+        if not EMAIL_REGEX.match(email):
+            raise ValueError("Please enter a valid email address")
+
         if self.get_user_by_email(email):
             raise ValueError("Email already registered")