validate backend URL and auth_enabled values in config endpoint; remove unused error card import in HomeInput component

Author: Kingshuk-Microsoft

src/frontend/frontend_server.py

@@ -7,6 +7,7 @@
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import FileResponse, HTMLResponse
 from fastapi.staticfiles import StaticFiles
+from urllib.parse import urlparse
 
 # Load environment variables from .env file
 load_dotenv()
@@ -40,14 +41,21 @@ async def get_config():
     backend_url = os.getenv("BACKEND_API_URL", "http://localhost:8000")
     auth_enabled = os.getenv("AUTH_ENABLED", "false")
 
-    # Validate backend_url is a proper URL
-    if not backend_url.startswith(("http://", "https://")):
+    # Validate backend_url is a proper URL with scheme and netloc
+    try:
+        parsed = urlparse(backend_url)
+        if not (parsed.scheme in ["http", "https"] and parsed.netloc):
+            backend_url = "http://localhost:8000"
+    except Exception:
         backend_url = "http://localhost:8000"
 
     backend_url = backend_url + "/api"
 
     # Validate auth_enabled is a boolean string
-    auth_enabled = auth_enabled.lower() if auth_enabled.lower() in ["true", "false"] else "false"
+    if auth_enabled and auth_enabled.lower() in ["true", "false"]:
+        auth_enabled = auth_enabled.lower()
+    else:
+        auth_enabled = "false"
 
     config = {
         "API_URL": backend_url,

src/frontend/src/components/content/HomeInput.tsx

@@ -17,7 +17,6 @@ import "./../../styles/HomeInput.css";
 import { HomeInputProps, iconMap, QuickTask } from "../../models/homeInput";
 import { TaskService } from "../../services/TaskService";
 import { NewTaskService } from "../../services/NewTaskService";
-import { RAIErrorCard, RAIErrorData } from "../errors";
 
 import ChatInput from "@/coral/modules/ChatInput";
 import InlineToaster, { useInlineToaster } from "../toast/InlineToaster";