fix(auth): Protect /storages and /tag endpoints

Resolves: #1

backend/main.py

@@ -5,6 +5,7 @@ from fastapi import Depends, FastAPI, HTTPException, Request, UploadFile, status
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
 from itsdangerous.serializer import Serializer
+from itsdangerous import BadSignature
 from slowapi import Limiter, _rate_limit_exceeded_handler
 from slowapi.errors import RateLimitExceeded
 from slowapi.util import get_remote_address
@@ -48,12 +49,19 @@ def get_db():
 
 
 def check_token(token: str):
-    if datetime.fromtimestamp(oauth2_tokener.loads(token)) < datetime.now():
-        raise HTTPException(
-            status_code=status.HTTP_401_UNAUTHORIZED,
-            detail="Invalid authentication credentials",
-            headers={"WWW-Authenticate": "Bearer"},
-        )
+    try:
+        timestamp = oauth2_tokener.loads(token)
+        if datetime.fromtimestamp(timestamp) > datetime.now():
+            return  # success
+    except BadSignature:
+        pass
+
+    raise HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Invalid authentication credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+
 
 
 # Routes
@@ -103,7 +111,8 @@ def get_items(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)
 
 
 @app.get("/tag/{tag}", response_model=schemas.Item)
-def get_item_by_tag(tag: str, db: Session = Depends(get_db)):
+def get_item_by_tag(tag: str, token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)):
+    check_token(token)
     item = utils.get_item_by_tag(db, tag)
     if not item:
         raise HTTPException(status_code=404, detail="Item not found")
@@ -111,7 +120,8 @@ def get_item_by_tag(tag: str, db: Session = Depends(get_db)):
 
 
 @app.get("/storages", response_model=list[schemas.Storage])
-def list_storages(db: Session = Depends(get_db)):
+def list_storages(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)):
+    check_token(token)
     return utils.get_storages(db)