sync: migrate secure-online-shop to Gitea (2026-08-10)

app/core/security.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from datetime import datetime, timedelta, timezone
+from uuid import uuid4
+
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+
+from app.core.config import get_settings
+from app.core.exceptions import UnauthorizedError
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+settings = get_settings()
+ACCESS_TOKEN_TYPE = "access"  # nosec B105
+
+
+@dataclass(slots=True)
+class TokenPayload:
+    user_id: int
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def create_access_token(subject: str) -> str:
+    now = datetime.now(timezone.utc)
+    expire = now + timedelta(minutes=settings.access_token_expire_minutes)
+    to_encode = {
+        "sub": subject,
+        "iat": int(now.timestamp()),
+        "nbf": int(now.timestamp()),
+        "exp": int(expire.timestamp()),
+        "jti": str(uuid4()),
+        "type": ACCESS_TOKEN_TYPE,
+        "iss": settings.jwt_issuer,
+        "aud": settings.jwt_audience,
+    }
+    return jwt.encode(to_encode, settings.jwt_secret_key, algorithm=settings.jwt_algorithm)
+
+
+def decode_access_token(token: str) -> TokenPayload:
+    try:
+        payload = jwt.decode(
+            token,
+            settings.jwt_secret_key,
+            algorithms=[settings.jwt_algorithm],
+            issuer=settings.jwt_issuer,
+            audience=settings.jwt_audience,
+        )
+        subject = payload.get("sub")
+        token_type = payload.get("type")
+        if subject is None or token_type != ACCESS_TOKEN_TYPE:
+            raise UnauthorizedError("Could not validate credentials")
+        return TokenPayload(user_id=int(subject))
+    except (JWTError, ValueError) as exc:
+        raise UnauthorizedError("Could not validate credentials") from exc