dragonxd auto-recovers a wallet.dat that fails BDB verification on startup — no
flag needed (CWallet::Verify → CDBEnv::Verify(walletFile, CWalletDB::Recover)):
it moves the original to wallet.<timestamp>.bak, salvages readable keys into a
fresh wallet.dat, and keeps running. The salvage can be incomplete (or the whole
thing a FALSE POSITIVE from stale/cross-platform BDB env state — __db.* / the
database/ dir carried between machines), so the node silently comes up on a
possibly-empty wallet. To the user that reads as fund loss, with no warning.
Detect it and warn loudly instead:
- daemon/daemon_startup_diagnosis.h: pure walletAutoRecovered() (the salvage /
"Original wallet.dat saved as wallet.<ts>.bak" markers) + newestWalletSalvageBak()
(picks the wallet.<unixtime>.bak the recovery just made).
- onConnected() scans the node's captured output once per session; on a match it
shows a warning dialog + notification: the ORIGINAL is safe in wallet.<ts>.bak,
the shown balance may be incomplete, and here are the exact steps to restore it
(rename the .bak back + delete the stale database/ + __db.* env). One-click
"Open data folder" jumps straight there. Full-node only; lite-safe.
Deliberately does NOT auto-swap the wallet files (untested per-platform file
manipulation on a real wallet is not worth the risk) — it informs + guides.
Adds walletAutoRecovered / newestWalletSalvageBak coverage to
testBlockDbOutputDiagnosis. Suite green (1/1).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DanS
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