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"""
JWT Token Validator
==================
Supabase Auth๊ฐ ๋ฐ๊ธํ JWT ํ ํฐ ๊ฒ์ฆ.
"""
import logging
from typing import Dict, Any, Optional, Tuple
from datetime import datetime, timezone
try:
import jwt
except ImportError:
jwt = None # PyJWT ๋ฏธ์ค์น ์ graceful ์ฒ๋ฆฌ
from .config import SUPABASE_JWT_SECRET
logger = logging.getLogger("eodi.auth.token_validator")
class TokenValidator:
"""
JWT ํ ํฐ ๊ฒ์ฆ๊ธฐ.
Supabase Auth๊ฐ ๋ฐ๊ธํ access_token์ ์๋ช
๋ฐ ๋ง๋ฃ ๊ฒ์ฆ.
์๋ฒ ์ธก์์ ํ ํฐ ์ ํจ์ฑ์ ํ์ธํ ๋ ์ฌ์ฉ.
"""
def __init__(self, jwt_secret: str = None):
"""
Args:
jwt_secret: Supabase JWT Secret (์์ผ๋ฉด ํ๊ฒฝ๋ณ์์์ ๋ก๋)
"""
self.jwt_secret = jwt_secret or SUPABASE_JWT_SECRET
self._enabled = bool(self.jwt_secret) and jwt is not None
if jwt is None:
logger.warning("PyJWT๊ฐ ์ค์น๋์ง ์์์ต๋๋ค. pip install PyJWT")
elif not self._enabled:
logger.warning("JWT Secret ๋ฏธ์ค์ - ํ ํฐ ๊ฒ์ฆ์ด ๋นํ์ฑํ๋ฉ๋๋ค")
@property
def is_enabled(self) -> bool:
"""ํ ํฐ ๊ฒ์ฆ ํ์ฑํ ์ฌ๋ถ"""
return self._enabled
def validate(self, token: str) -> Tuple[bool, Optional[Dict[str, Any]], Optional[str]]:
"""
JWT ํ ํฐ ๊ฒ์ฆ.
Args:
token: JWT access_token
Returns:
(์ ํจ์ฌ๋ถ, payload, error_message)
"""
if not self._enabled:
# JWT Secret ๋ฏธ์ค์ ์ ๊ฒ์ฆ ์คํต (๊ฐ๋ฐ ํ๊ฒฝ์ฉ)
logger.warning("JWT ๊ฒ์ฆ ์คํต (Secret ๋ฏธ์ค์ ๋๋ PyJWT ๋ฏธ์ค์น)")
return True, {"sub": "unknown"}, None
try:
payload = jwt.decode(
token,
self.jwt_secret,
algorithms=["HS256"],
options={"verify_aud": False} # Supabase๋ aud ํด๋ ์์ด ๋ค์ํจ
)
return True, payload, None
except jwt.ExpiredSignatureError:
return False, None, "ํ ํฐ์ด ๋ง๋ฃ๋์์ต๋๋ค"
except jwt.InvalidTokenError as e:
logger.warning(f"JWT ๊ฒ์ฆ ์คํจ: {e}")
return False, None, f"์ ํจํ์ง ์์ ํ ํฐ์
๋๋ค: {e}"
def extract_user_id(self, token: str) -> Optional[str]:
"""
ํ ํฐ์์ user_id(sub ํด๋ ์) ์ถ์ถ.
Args:
token: JWT access_token
Returns:
user_id ๋๋ None
"""
is_valid, payload, _ = self.validate(token)
if is_valid and payload:
return payload.get("sub")
return None
def is_expired(self, token: str) -> bool:
"""
ํ ํฐ ๋ง๋ฃ ์ฌ๋ถ ํ์ธ.
Args:
token: JWT access_token
Returns:
๋ง๋ฃ ์ฌ๋ถ
"""
is_valid, _, error = self.validate(token)
return not is_valid and error and "๋ง๋ฃ" in error
def get_expiry_time(self, token: str) -> Optional[datetime]:
"""
ํ ํฐ ๋ง๋ฃ ์๊ฐ ์ถ์ถ.
Args:
token: JWT access_token
Returns:
๋ง๋ฃ ์๊ฐ ๋๋ None
"""
if jwt is None:
return None
try:
# ๊ฒ์ฆ ์์ด ํ์ด๋ก๋๋ง ๋์ฝ๋ฉ
payload = jwt.decode(
token,
options={"verify_signature": False}
)
exp = payload.get("exp")
if exp:
return datetime.fromtimestamp(exp, tz=timezone.utc)
return None
except Exception:
return None
# ์ ์ญ ์ธ์คํด์ค (Lazy loading)
_token_validator = None
def get_token_validator() -> TokenValidator:
"""TokenValidator ์ฑ๊ธํค ์ธ์คํด์ค ๋ฐํ"""
global _token_validator
if _token_validator is None:
_token_validator = TokenValidator()
return _token_validator
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