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from starlette.status import HTTP_401_UNAUTHORIZED
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from fastapi import status, HTTPException, Depends, Request
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from app.config.env import env
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import jwt
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import httpx
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SECRET_KEY = env.AUTH0_JWT_SECRET_KEY
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ALGORITHM = "HS256"
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def get_token_from_header(request: Request):
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auth_header = request.headers.get("Authorization")
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if auth_header is None or not auth_header.startswith("Bearer "):
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raise HTTPException(
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status_code=HTTP_401_UNAUTHORIZED,
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detail="Invalid token",
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headers={"WWW-Authenticate": "Bearer"},
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)
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token = auth_header[len("Bearer "):]
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return token
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def decode_access_token(token: str):
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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return payload
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except jwt.PyJWTError:
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return None
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def get_current_user(request: Request):
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token = get_token_from_header(request)
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payload = decode_access_token(token)
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if payload is None:
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raise HTTPException(
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status_code=HTTP_401_UNAUTHORIZED,
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detail="Invalid token",
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headers={"WWW-Authenticate": "Bearer"},
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)
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username: str = payload.get("sub")
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if username is None:
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raise HTTPException(
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status_code=HTTP_401_UNAUTHORIZED,
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detail="Invalid token payload",
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headers={"WWW-Authenticate": "Bearer"},
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)
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return payload
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def get_access_token(client_id, client_secret, domain):
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url = f"https://{domain[0]}/oauth/token"
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payload = {
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"grant_type": "client_credentials",
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"client_id": client_id[0],
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"client_secret": client_secret[0],
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"audience": f"https://{domain[0]}/api/v2/"
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}
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headers = {
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"Content-Type": "application/x-www-form-urlencoded"
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}
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try:
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response = httpx.post(url, data=payload, headers=headers)
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response.raise_for_status()
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return response.json().get("access_token")
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except httpx.RequestError as e:
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print(f"An error occurred while requesting {e.request.url!r}.")
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raise
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except httpx.HTTPStatusError as e:
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print(f"Error response {e.response.status_code} while requesting {e.request.url!r}.")
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raise |
