Reformat long lines for readability in oauth2_auth.py

Refactored several long lines and conditional statements to improve code readability and maintain PEP8 compliance. No functional changes were made.

Author: loveyana

veadk/auth/middleware/oauth2_auth.py

@@ -947,9 +947,7 @@ async def _fetch_jwks(self) -> dict[str, Any]:
             jwks = response.json()
         except httpx.HTTPStatusError as e:
             logger.error("JWKS fetch failed: %s", e.response.text)
-            raise HTTPException(
-                status_code=503, detail="Failed to fetch JWKS"
-            ) from e
+            raise HTTPException(status_code=503, detail="Failed to fetch JWKS") from e
         except httpx.RequestError as e:
             logger.error("JWKS request error: %s", e)
             raise HTTPException(status_code=503, detail="Failed to fetch JWKS") from e
@@ -975,8 +973,7 @@ async def _get_jwks(self, force_refresh: bool = False) -> dict[str, Any]:
             if (
                 not force_refresh
                 and self._jwks_cache
-                and now - self._jwks_cache_time
-                < self.config.jwks_cache_ttl_seconds
+                and now - self._jwks_cache_time < self.config.jwks_cache_ttl_seconds
             ):
                 return self._jwks_cache
 
@@ -1028,7 +1025,9 @@ def _prune_introspection_cache(self) -> None:
         ]
         for token in expired:
             self._introspection_cache.pop(token, None)
-        while len(self._introspection_cache) > self.config.introspection_cache_max_entries:
+        while (
+            len(self._introspection_cache) > self.config.introspection_cache_max_entries
+        ):
             self._introspection_cache.pop(next(iter(self._introspection_cache)))
 
     def _validate_audience(self, claims: dict[str, Any]) -> None:
@@ -1099,7 +1098,10 @@ async def _validate_with_introspection(self, token: str) -> dict[str, Any]:
         data = {"token": token}
         headers = {"Content-Type": "application/x-www-form-urlencoded"}
         auth = None
-        if self.config.introspection_client_id and self.config.introspection_client_secret:
+        if (
+            self.config.introspection_client_id
+            and self.config.introspection_client_secret
+        ):
             auth = (
                 self.config.introspection_client_id,
                 self.config.introspection_client_secret,
@@ -1150,9 +1152,7 @@ async def _validate_with_introspection(self, token: str) -> dict[str, Any]:
         if self.config.issuer:
             issuer = result.get("iss")
             if issuer and issuer != self.config.issuer:
-                raise HTTPException(
-                    status_code=403, detail="Token issuer not allowed"
-                )
+                raise HTTPException(status_code=403, detail="Token issuer not allowed")
 
         self._validate_audience(result)
 
@@ -1736,7 +1736,9 @@ async def oauth2_middleware(request: Request, call_next):
 
         if session and not session.is_expired():
             try:
-                claims = await oauth2_handler.validate_access_token(session.access_token)
+                claims = await oauth2_handler.validate_access_token(
+                    session.access_token
+                )
             except HTTPException as exc:
                 if exc.status_code >= 500:
                     return JSONResponse(