burenin-a commented on code in PR #38469:
URL: https://github.com/apache/superset/pull/38469#discussion_r3022188141
##########
superset/utils/oauth2.py:
##########
@@ -276,3 +280,146 @@
if database.is_oauth2_enabled() and
database.db_engine_spec.needs_oauth2(ex):
database.db_engine_spec.start_oauth2_dance(database)
raise
+
+
+def get_access_token_for_database(database: Database, user_id: int) -> str |
None:
+ """
+ Return a valid OAuth2 access token for the given database and user.
+
+ First checks if the database has an upstream OAuth provider configured in
its
+ ``encrypted_extra`` (key ``oauth2_upstream_provider``). If so, returns the
saved
+ upstream login token for that provider.
+
+ Otherwise, falls back to the database-specific OAuth2 flow.
+ """
+ upstream_provider =
database.get_encrypted_extra().get("oauth2_upstream_provider")
+ if upstream_provider:
+ access_token = get_upstream_provider_token(upstream_provider, user_id)
+ if access_token:
+ return access_token
+
+ # Fall back to database-specific OAuth2 (also used when upstream token is
+ # unavailable, e.g. expired without a refresh token).
+ oauth2_config = database.get_oauth2_config()
+ if oauth2_config:
+ return get_oauth2_access_token(
+ oauth2_config, database.id, user_id, database.db_engine_spec
+ )
+
+ return None
+
+
+def save_user_provider_token(
+ user_id: int,
+ provider: str,
+ token_response: dict[str, Any],
+) -> None:
+ """
+ Upsert an UpstreamOAuthToken row for the given user + provider.
+ """
+ from superset.models.core import UpstreamOAuthToken
+
+ token: UpstreamOAuthToken | None = (
+ db.session.query(UpstreamOAuthToken)
+ .filter_by(user_id=user_id, provider=provider)
+ .one_or_none()
+ )
+ if token is None:
+ token = UpstreamOAuthToken(user_id=user_id, provider=provider)
+
+ token.access_token = token_response.get("access_token")
+ expires_in = token_response.get("expires_in")
+ token.access_token_expiration = (
+ datetime.now() + timedelta(seconds=expires_in) if expires_in else None
+ )
+ token.refresh_token = token_response.get("refresh_token")
+ db.session.add(token)
+ db.session.commit()
+
+
[email protected]_exception(
+ backoff.expo,
+ AcquireDistributedLockFailedException,
+ factor=10,
+ base=2,
+ max_tries=5,
+)
+def get_upstream_provider_token(provider: str, user_id: int) -> str | None:
+ """
+ Retrieve a valid access token for the given provider and user.
+
+ If the token is expired and a refresh token exists, attempt to refresh it.
+ Returns None if no valid token is available.
+ """
+ from superset.models.core import UpstreamOAuthToken
+
+ token: UpstreamOAuthToken | None = (
+ db.session.query(UpstreamOAuthToken)
+ .filter_by(user_id=user_id, provider=provider)
+ .one_or_none()
+ )
+ if token is None:
+ return None
+
+ now = datetime.now()
+ if token.access_token_expiration is None or token.access_token_expiration
> now:
+ return token.access_token
+
+ # Token is expired
+ if token.refresh_token:
+ return _refresh_upstream_provider_token(token, provider)
+
+ db.session.delete(token)
+ db.session.commit()
+ return None
+
+
+def _refresh_upstream_provider_token(
+ token: UpstreamOAuthToken,
+ provider: str,
+) -> str | None:
+ """
+ Use the refresh token to obtain a new access token from the provider.
+ Updates and persists the token if successful; deletes it on failure.
+ """
+ from flask import current_app as flask_app
+
+ with DistributedLock(
+ namespace="refresh_upstream_oauth_token",
+ user_id=token.user_id,
+ provider=provider,
+ ):
+ try:
+ remote_app =
flask_app.extensions["authlib.integrations.flask_client"][
+ provider
+ ]
+ token_response = remote_app.fetch_access_token(
+ grant_type="refresh_token",
+ refresh_token=token.refresh_token,
+ )
+ except Exception: # pylint: disable=broad-except
+ logger.warning(
+ "Failed to refresh upstream OAuth token for provider %s",
+ provider,
Review Comment:
Comment is irrelevant. Bot thinks that upstream provider is sensetive value
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