Initial commit

run/dependencies.py

@@ -0,0 +1,45 @@
+from fastapi import HTTPException, Security
+from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
+from jose import JWTError, jwt
+from datetime import datetime, timedelta
+from typing import Optional
+from dotenv import load_dotenv
+import os
+
+load_dotenv()
+SECRET_KEY = os.getenv("FASTAPI_SECRET_KEY")
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 30
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+class TokenData:
+    username: Optional[str] = None
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+def verify_token(token: str, credentials_exception):
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        username: str = payload.get("sub")
+        if username is None:
+            raise credentials_exception
+        token_data = TokenData(username=username)
+    except JWTError:
+        raise credentials_exception
+
+def admin_dependency(token: str = Security(oauth2_scheme)):
+    credentials_exception = HTTPException(
+        status_code=HTTPException,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    return verify_token(token, credentials_exception)