authz: utilize expired_at and last_valid_at columns of user_external_accounts (!16067) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge jc/permsSyncer-expired-last-valid into main Nov 23, 2020

Created by: unknwon

This PR does two things in the PermsSyncer:

When successfully used a token from user_external_accounts, we update the last_valid_at column.
Otherwise, update the expired_at column.

Part of #14899

TODOs

Implements errcode.IsUnauthorized for GitHub and GitLab errors
Add tests for db.ExternalAccounts
Add tests for PermsSyncer