MAJOR: Restructured backend Flask application moved all non-routes into utils, renamed routes to not prefix get, created middleware.py to replace utils.py within blueprints

web_server/blueprints/middleware.py

@@ -0,0 +1,46 @@
+from flask import redirect, url_for, request, g, session
+from functools import wraps
+import logging
+
+def logged_in_user():
+    """
+    Validator to make sure a user is logged in.
+    """
+    g.user = session.get("username", None)
+    g.admin = session.get("username", None)
+
+def login_required(view):
+    """
+    Add at start of routes where users need to be logged in to access.
+    """
+    @wraps(view)
+    def wrapped_view(*args, **kwargs):
+        if g.user is None:
+            return redirect(url_for("login", next=request.url))
+        return view(*args, **kwargs)
+    return wrapped_view
+
+def admin_required(view):
+    """
+    Add at start of routes where admins need to be logged in to access.
+    """
+    @wraps(view)
+    def wrapped_view(*args, **kwargs):
+        if g.admin != "admin":
+            return redirect(url_for("login", next=request.url))
+        return view(*args, **kwargs)
+    return wrapped_view
+
+def register_error_handlers(app):
+    error_responses = {
+        400: "Bad Request",
+        403: "Forbidden",
+        404: "Not Found",
+        500: "Internal Server Error"
+    }
+
+    for code, message in error_responses.items():
+        @app.errorhandler(code)
+        def handle_error(error, message=message, code=code):
+            logging.error(f"Error {code}: {str(error)}")
+            return {"error": message}, code