Fix Desktop.Auth login key race under concurrent first access#77
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Concurrent first access from prepare_url and the Auth plug could mint different keys via non-atomic persistent_term check-then-set. Elect a single winner with ETS insert_new while keeping persistent_term as the fast read path. Co-authored-by: Cursor <[email protected]>
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Drop the redundant ETS pre-lookup before insert_new, trim defensive test reset code, and keep persistent_term as the hot-path cache. Co-authored-by: Cursor <[email protected]>
Mirror the ddrive diagnostics: path, whether a k was present, and peer, so stale-key Unauthorized pages are visible in logs. Co-authored-by: Cursor <[email protected]>
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Summary
Desktop.Auth.key/0: non-atomic:persistent_termcheck-then-set could mint two different keys whenWindow.prepare_url/1and the Auth plug initialize concurrently under load.?k=and a blank"Unauthorized"page (seen in diodechain/ddrive#4106).insert_new/2, keep:persistent_termas the fast read path, and keepset_key/1in sync with both stores.Test plan
NO_WX=1 mix test test/auth_test.exs test/window_test.exslogin_key/0callers always agree after a cold startMade with Cursor