Initial commit

app/auth.py

@@ -0,0 +1,21 @@
+from functools import wraps
+from flask import session, redirect, url_for, request
+from app.db import query_one
+
+
+def login_required(f):
+    """Decorator to require authentication."""
+    @wraps(f)
+    def decorated_function(*args, **kwargs):
+        if "user_id" not in session:
+            return redirect(url_for("auth.login", next=request.url))
+        return f(*args, **kwargs)
+    return decorated_function
+
+
+def get_current_user():
+    """Get the current logged-in user from the database."""
+    user_id = session.get("user_id")
+    if user_id is None:
+        return None
+    return query_one("SELECT * FROM users WHERE id = %s", (user_id,))