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Keep input attribution account-local, preserve complete transaction slices, and relay corrections without assigning another transaction's lock. Co-Authored-By: Codex <noreply@openai.com> <sub>🤖 Co-authored by [Claudius the Magnificent](https://github.com/lklimek/claudius) AI Agent</sub>
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Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe wallet now stages funding outputs discovered after they were spent, attributes them to stored spender records, and emits transaction detection events for corrected records. The changes also document retention limits for corrections after ChainLock. ChangesLate wallet input attribution
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant FundingTransaction
participant ManagedWalletInfo
participant ManagedCoreFundsAccount
participant TransactionEventConsumer
FundingTransaction->>ManagedWalletInfo: supply newly discovered output
ManagedWalletInfo->>ManagedCoreFundsAccount: attribute output to spender record
ManagedCoreFundsAccount->>ManagedWalletInfo: return corrected record
ManagedWalletInfo->>TransactionEventConsumer: publish TransactionDetected correction
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The change repairs retained spender accounting and publishes corrections without attributing funding locks to spenders. No concrete merge-blocking issue remains identified; consumers must upsert corrections, and post-ChainLock repairs require finalized-record retention enabled beforehand. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The inspected changes preserve account ownership and prevent unrelated transactions from receiving lock notifications. Remaining uncertainty concerns whether consuming applications durably apply corrections and recover them after interruption, rather than a demonstrated new security vulnerability. Retained concerns Security review detailsSecurity Blast Radius
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Additional details and impacted files@@ Coverage Diff @@
## dev #1082 +/- ##
==========================================
+ Coverage 77.36% 77.55% +0.18%
==========================================
Files 320 320
Lines 81343 81823 +480
==========================================
+ Hits 62935 63459 +524
+ Misses 18408 18364 -44
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- 🪄 Fix CodeRabbit comments on this PR
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@key-wallet/src/managed_account/managed_core_funds_account.rs:
- Around line 460-467: In attribute_spent_input, skip templates whose txid is
finalized according to self.keys.transaction_is_finalized. For a newly
reconstructed chainlocked record, merge all late inputs before publishing the
complete record in the event, then call drop_finalized_transaction under the
default feature configuration so the provider-payload retention exception
remains effective; do not drop after each input.
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CHANGELOG.mdkey-wallet-manager/src/event_tests.rskey-wallet-manager/src/events.rskey-wallet-manager/src/process_block.rskey-wallet/src/managed_account/managed_account_ref.rskey-wallet/src/managed_account/managed_core_funds_account.rskey-wallet/src/managed_account/transaction_record.rskey-wallet/src/transaction_checking/wallet_checker.rs
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Collect every late input before pruning reconstructed chainlocked records. Do not resurrect records already finalized under the default retention policy; retain complete corrections when retention is enabled. Co-Authored-By: OpenAI Codex <noreply@openai.com>
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I will do a full review tomorrow
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Thanks for this. The fix works for the case in the issue and the three manager tests do fail on dev, but I found a few things I'd like sorted before merging:
-
Finalized spenders are never corrected. With default features (what platform uses), if the spender is already chainlocked when its funding shows up, no correction is published and the record stays
Incoming +change. I get the same result whether the block is processed below the chainlock or the chainlock lands between the spend and the funding. Withkeep-finalized-transactionsit is corrected. Records from the initial sync areInBlock, so those are fine; the gap is everything after the firstSyncComplete.born_spent_attribution_preserves_finalized_retentionasserts this as intended, but the description doesn't mention it. Either fix it or state the limitation clearly, since consumers keep a wrong row forever. -
This is a breaking change to the event contract, and the description says there is none. An IS lock on an already known mempool tx delivered through
process_mempool_transactionnow emitsTransactionDetectedandTransactionInstantLocked; on dev it emitted only the second. The FFI callback doc (dash-spv-ffi/src/callbacks.rs:722) still says "first seen off-chain". Please mark it breaking and update that doc. -
The already-attributed-index guard in
attribute_spent_inputhas no test (see inline). It is the one that matters most. -
No manager test covers the block path. It works (
BlockProcessed.updatedcarries the correction), but all three new manager tests are mempool child-before-parent, while the issue is about blocks.
Mutation run: removing each of these makes no test fail: the index guard, spent_outpoints.insert in the attribution, the CoinJoin direction guard, the Internal direction, the Change role for the internal pool, state_modified = true, and the input_details sort.
| record.output_details.clear(); | ||
| record | ||
| }); | ||
| if record.input_details.iter().any(|d| d.index == input_index as u32) { |
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No test fails if this guard is removed, and it is hit in the most common flow: funding in mempool, spend in mempool, then the funding is mined. Without it the spender comes out as Outgoing -102000 with 2 inputs instead of -2000 with 1.
The assert_no_events in the new tests don't reach it: a mempool redelivery returns earlier, on the !is_new && !confirmed path. Please add a test for funding confirmed after its mempool spend.
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Added the funding-mempool → spend-mempool → funding-block regression. It asserts Outgoing -2000, one input, and no redundant spender correction. Removing the guard fails at -102000 versus -2000. A separate manager block regression verifies the late spender correction in BlockProcessed.updated.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
| let mut corrected = Vec::new(); | ||
| for template in spenders { | ||
| #[cfg(not(feature = "keep-finalized-transactions"))] | ||
| if self.keys.transaction_is_finalized(&template.txid) { |
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This is what leaves a finalized spender uncorrected (point 1 of the review). The persisted row stays Incoming +change and nothing ever fixes it.
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Confirmed both ChainLock arrival orders. I chose the explicit limitation disclosure permitted in the review: default retention is preserved, so already-pruned spenders and their persisted Incoming +change rows remain uncorrectable. README, checker/event/FFI docs and the PR description now state this. Applications needing corrections after finalization must enable keep-finalized-transactions before processing, with the full-history memory cost. Reachable manager tests cover both orders under default and retained-history configurations.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
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Tracked in #1003: #1003, which already describes the finalization blocker, including full-record pruning with default features.
The remaining default-feature case will need a separate follow-up PR. #1082 corrects retained spender records (including finalized records with keep-finalized-transactions), but preserves the existing ChainLock pruning policy. Once the full spender record is discarded, late funding cannot reconstruct and publish its accounting correction; the persisted Incoming +change row can remain wrong. This is a pre-existing limitation, not a regression introduced by #1082.
A follow-up should cover both ChainLock arrival orders, preserve the finalized context, and verify correction delivery and persistence/restart behavior. Deferring pruning until historical scan coverage is established is one possible approach; removing the finalized guard alone cannot recover already-pruned records.
🤖 Co-authored by Claudius the Magnificent AI Agent
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just to be clear: I see this fix as out of scope, tracked in #1003
| } | ||
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| /// Derive account-local flow from attributed inputs and owned outputs. | ||
| pub(crate) fn recompute_net_and_direction(&mut self) { |
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This duplicates the direction logic of record_transaction (managed_core_funds_account.rs:995-1007). Can both use the same helper so they can't drift?
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Both initial recording and late recomputation now use TransactionRecord::direction_for. The regression also caught a real discrepancy: zero-value owned change was Internal on initial recording but Outgoing on late attribution. Both paths now agree, with CoinJoin and Internal mutation coverage.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
| per_wallet_account_diff.get(&wallet_id).cloned().unwrap_or_default(); | ||
| for record in records { | ||
| let txid = record.txid; | ||
| self.emit_event(WalletEvent::TransactionDetected { |
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This now fires for every updated record on the mempool path, including a plain IS lock on a known tx, which used to emit only TransactionInstantLocked. Consumers that treat TransactionDetected as a new transaction will see it twice.
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Restored lock-only delivery for a known mempool transaction. The new regression failed at two events versus one and now passes. Accounting corrections still repeat TransactionDetected; callback/event docs require upserts by wallet/account/txid, and the PR description marks this behavioral contract change as breaking.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
| } | ||
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| #[test] | ||
| fn born_spent_attribution_preserves_finalized_retention() { |
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This inserts a chainlocked record by hand into the CoinJoin account. With default features the real path drops that record when it is recorded, so the state can't be reached through check_core_transaction. It is also the only test covering the finalized skip and the drop loop.
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Removed the hand-inserted finalized CoinJoin fixture. Replacement tests use the manager's block and ChainLock APIs in both orders, asserting default pruning and complete corrections with keep-finalized-transactions. The default limitation is explicitly documented; these tests no longer claim an unreachable finalized-record state.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
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| /// A late input belongs to its funding account even when another account first saw the spender. | ||
| #[tokio::test] | ||
| async fn born_spent_attribution_reaches_sibling_account_spenders() { |
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Good test. Note test_utxo_not_created_when_already_spent (line 1143) already builds the exact scenario of the issue (same account, blocks, spend with change) and only checks UTXOs. Adding net, direction and input asserts there would cover the main case without a new test.
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Extended test_utxo_not_created_when_already_spent with net (-50000), Internal direction, one 100000 input at index 0, correction-publication and persistence-state assertions.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
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| /// InstantSend backfill must publish corrections before its early return. | ||
| #[tokio::test] | ||
| async fn born_spent_attribution_runs_on_the_instant_send_backfill_branch() { |
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The state is edited by hand (account 1's record and UTXOs removed) and the child is mined while its parent is still unconfirmed, which can't happen on chain. Is there a reachable way to get into this branch? If not, I'd rather not carry the branch and its test.
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The branch is reachable after account import. The replacement test adds account 1 through add_managed_account between the parent's initial mempool delivery and the child's mempool delivery, then redelivers the parent with its InstantSend lock. It edits no transaction/UTXO maps and mines no child ahead of its parent.
Implemented/verified in dfb8036.
🤖 Co-authored by Claudius the Magnificent AI Agent
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Preserve lock-only notifications for known mempool transactions and share initial/late-input direction classification, including zero-value change. Add reachable block, account-import, finality and mutation regressions. Document repeated correction events and the default finality retention limit. Co-Authored-By: Codex GPT-6 Astra <noreply@openai.com> <sub>🤖 Co-authored by [Claudius the Magnificent](https://github.com/lklimek/claudius) AI Agent</sub>
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Requesting changes: The new I checked this on patch--- a/key-wallet/src/transaction_checking/wallet_checker.rs
+++ b/key-wallet/src/transaction_checking/wallet_checker.rs
- fn attribute_born_spent(
- &mut self,
- born_spent: &[(OutPoint, u64, Address)],
- result: &mut TransactionCheckResult,
- ) {
+ fn attribute_born_spent(&mut self, tx: &Transaction, result: &mut TransactionCheckResult) {
+ let network = self.network;
+ let txid = tx.txid();
+ let born_spent: Vec<(OutPoint, u64, Address)> = tx
+ .output
+ .iter()
+ .enumerate()
+ .filter_map(|(vout, output)| {
+ let address = Address::from_script(&output.script_pubkey, network).ok()?;
+ let outpoint = OutPoint::new(txid, vout as u32);
+ self.accounts
+ .all_accounts()
+ .into_iter()
+ .filter_map(|account| account.as_funds())
+ .any(|account| account.is_outpoint_spent(&outpoint))
+ .then_some((outpoint, output.value, address))
+ })
+ .collect();Both call sites become Overlap with the #1015 reapply. In the
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Re-checked on dfb8036d against my previous pass: probes in event_tests plus a 24-mutation matrix, each mutation run with default features and with --all-features.
Fixed since last pass
- A known mempool tx that gets an IS lock now emits only
TransactionInstantLocked;known_mempool_instant_lock_emits_only_lock_eventcatches the regression. - The index guard in
attribute_spent_input, thespent_outpoints.insert, the CoinJoin andInternaldirection, theChangerole,state_modifiedand the input sort are now all covered by tests (each mutation fails at least one). - There is a manager test of the block path (
late_funding_block_publishes_spender_correction).
Changes requested
- Remove
born_spent_outputs. It is per-call staging state stored on a persisted struct, and the list can be derived fromtxplusspent_outpoints. Patch and results in #1082 (comment) (all tests green, -48/+22). - One mechanism per case. In the
observed_spentbranch the output now goes into bothspent_before_fundedandborn_spent_outputs. In-place attribution corrects the record, andunrecorded_spend_heightsstill makes the manager reload and reprocess the spender's block, which yields the same result. Please split it explicitly: spender recorded in some account → in-place attribution; spender recorded nowhere → #1015 reapply. With that split,unrecorded_spend_heightscan skip outpoints that some account already has inspent_outpoints.
Non-blocking
3. Finalized spenders with default features. Platform uses the default features. If the spender is chainlocked before the funding arrives (chainlock first, or chainlock between spend and funding), the funding block reports updated=[], and the consumer's row stays Incoming +98000 instead of -2000. With --all-features it is corrected. It is documented now, but please confirm this is acceptable for Platform or open a follow-up.
4. Untested finality handling. Removing the finalized skip in attribute_spent_input (transaction_is_finalized(&template.txid)) or the default-features drop of reconstructed chainlocked records at the end of attribute_born_spent fails no test, with either feature set. The finalized_spender_* tests only run with keep-finalized-transactions, where neither branch exists. A default-features test should assert that a chainlocked correction is emitted and then pruned, not retained.
Derive late funding candidates from existing spend marks. Skip block replay once the owning account has attributed the spend, while keeping replay for unknown spenders and pruned sibling templates. Cover the manager's sibling-account replay decision and finalized fallback, and strengthen unknown-spender replay assertions. Co-Authored-By: Codex GPT-6 <noreply@openai.com> <sub>🤖 Co-authored by [Claudius the Magnificent](https://github.com/lklimek/claudius) AI Agent</sub>
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Addressed both blocking requests in b6fb3a2.
One boundary required a narrower replay guard than the suggested any-account check: after a sibling spender is pruned, its spent mark can remain while the owning account still lacks a record. Suppressing replay based on that sibling mark loses the existing correction. A public-flow regression proves the blanket check fails; checking the owning account preserves replay, the chainlocked correction event, and subsequent pruning under default features. Validation: default and all-feature suites for The finalized-history limitation remains tracked in #1003. The new pruning regression covers the replay path; it does not establish mutation coverage for 🤖 Co-authored by Claudius the Magnificent AI Agent |
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/self-reviewed Reviewed b6fb3a2. Both blocking follow-up requests are addressed; scoped default/all-feature tests and debug/release Clippy pass. The existing #1003 limitation and the remaining nonblocking finality branch-coverage request are documented. 🤖 Co-authored by Claudius the Magnificent AI Agent |
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Request: shrink the fix and the tests to the minimum that fixes #5126 On The block path of that case is already covered by the #1015 reapply on dev. I checked it by following
The default-features limitation for finalized spenders is identical in both versions. Minimal fix (~90 production lines) Correct the spender record in place, in the account that already has the outpoint in fn attribute_late_inputs(&mut self, tx: &Transaction, result: &mut TransactionCheckResult) {
let txid = tx.txid();
for mut account in self.accounts.all_accounts_mut() {
let Some(funds) = account.as_funds_mut() else {
continue;
};
for (vout, output) in tx.output.iter().enumerate() {
let outpoint = OutPoint::new(txid, vout as u32);
if !funds.is_outpoint_spent(&outpoint) {
continue;
}
let Ok(address) = Address::from_script(&output.script_pubkey, self.network) else {
continue;
};
if !funds.contains_address(&address) {
continue;
}
for record in funds.transactions_mut().values_mut() {
let Some(index) =
record.transaction.input.iter().position(|i| i.previous_output == outpoint)
else {
continue;
};
if record.input_details.iter().any(|d| d.index == index as u32) {
continue;
}
record.input_details.push(InputDetail {
index: index as u32,
value: output.value,
address: address.clone(),
});
record.input_details.sort_by_key(|d| d.index);
// A record stored without inputs skips foreign outputs; with an input they are Sent.
for (index, output) in record.transaction.output.iter().enumerate() {
if record.output_details.iter().all(|d| d.index != index as u32) {
record.output_details.push(OutputDetail {
index: index as u32,
role: OutputRole::Sent,
address: Address::from_script(&output.script_pubkey, self.network).ok(),
value: output.value,
});
}
}
record.output_details.sort_by_key(|d| d.index);
record.recompute_net_and_direction();
result
.updated_records
.retain(|r| r.txid != record.txid || r.account_type != record.account_type);
result.updated_records.push(record.clone());
result.state_modified = true;
}
}
}
}What stays from the PR:
What goes:
Tests: about 3
The tests for the sibling template, the imported account, the finalized sibling, With this, the PR goes from ~1060 lines to roughly 90 of code and 3 tests: the same fix, and far easier to review and maintain. The patch I tested against |
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2 participants
TL;DR: Correct transaction history when a wallet discovers a spent input after it has already seen the spending transaction.
User story
As a wallet user, I want transaction amounts to remain accurate regardless of the order in which history is discovered.
Scenario
A spending transaction arrives before its funding transaction. History initially omits the debit and can continue showing an incoming payment after funding is discovered. The wallet should correct the owning account's history and publish the revised record without counting the input in sibling accounts.
Detailed discussion
What was done
keep-finalized-transactionswhen corrections after finalization are required.Addresses the upstream part of dashpay/platform#5126. Companion persistence and iOS fix: dashpay/platform#5150.
Testing
b6fb3a24: both review requests addressed. Default package suites passed (key-wallet 674 unit tests, key-wallet-manager 75); all-feature suites passed (668 and 75), with integration/doc tests passing. A manager regression failed before the fix under both feature sets because corrected sibling spenders still requested replay. Unknown-spender replay and default-feature pruned-sibling recovery remain covered; a blanket any-account spend-mark skip fails the latter regression. Formatting, whitespace checks, and scoped all-target/all-feature Clippy with warnings denied passed in debug and release.dfb8036d:cargo test -p key-wallet -p key-wallet-managerpassed with 787 tests and 19 ignored; the same package suites with--all-featurespassed with 783 tests and 19 ignored. Each configuration includes 73 manager unit tests plus integration/doc tests. Regression tests reproduced duplicate InstantSend detection and zero-value direction drift before the fixes. All seven reviewer-listed mutations fail assertions, including the exact -102000 versus -2000 index-guard failure. Manager tests cover late funding in blocks, funding confirmation after a mempool spend, and both ChainLock orders.18f7f3e695e770ea5d2820aa85597d45160d1b8ewith Platform #5150 atc0425f7bdcc29776f6d5f0f35a56cde7eb368c7f: 47 focused storage tests passed, including 8 confirmed-history restoration regressions. Loading a private copy of an existing 38-wallet E2E database produced no spendable outputs referenced by persisted confirmed spends. A live testnet payment round trip also passed after restart. These results do not validate this PR's newer finalized-retention follow-up on the compatibility branch.2383a0aa2/ Platformc0425f7bdc/ rust-dashcore18f7f3e6: the standalone Core payment round trip passed; the full network-dependent backend E2E run finished with 65 passed and 10 failed (75 executed, 18 non-network tests filtered out). Seven failures require the unsetE2E_MN_PAYOUT_KEY; the other failures were DashPay identity funding (AssetLockInsufficientFunds), shielded withdrawal (balance mismatch), and asset-lock address funding (AssetLockAddressNotFound). Core payment round trip and cold-process wallet migration/balance recovery passed. NoWalletConfirmedInputConflictoccurred in this run. The suite is not green; the three other failures have not been root-caused. Device validation and deliberate crash injection between persistence writes have not been performed.Breaking changes
TransactionDetectedcan be emitted again when a retained transaction's accounting is corrected. Consumers must upsert by account and transaction ID rather than treat every event as a new payment. A plain InstantSend lock on a known transaction emits onlyTransactionInstantLocked. The FFI callback contract documents repeated correction delivery; serialized layouts are unchanged.Finalized-history limitation
With default features, finalized spender records are pruned. If funding is discovered after the spender is chainlocked, no complete spender record remains to correct or publish, and a persisted
Incoming +changerow can stay wrong. This applies both when the spender is first processed below an existing ChainLock and when ChainLock arrives between the spend and its funding. Enablekeep-finalized-transactionsbefore processing to retain the records needed for late corrections, at the cost of retaining finalized history in memory. Enabling it after pruning cannot recover the lost records. Initial-sync records that remainInBlockare eligible for correction. This PR preserves the default retention policy.Prior work
Extracts the necessary late-input accounting work from #979 and adds account-local attribution and event corrections. This branch targets dev and does not depend on #979 or include its SPV, address-pool or late-output rescan changes.
Platform's existing dependency API uses the backport at
18f7f3e695e770ea5d2820aa85597d45160d1b8eonfix/5126-accounting-compat. That backport does not yet include the finalized-retention follow-up in this PR.Persistence boundary
Consumers must upsert corrected account records. Platform #5150 handles updated records, coalesces repeated account snapshots, and repairs persisted accounting from historical outputs. It also restores confirmed Core transaction history into the live wallet before sync, reapplies persisted finality, and excludes outputs already spent by confirmed transactions while preserving exclusions for unconfirmed or reserved spends. This closes the separately reproduced restart gap where SQLite marked an output spent but the live wallet could select it again after old funding was redelivered.
This PR corrects late-input accounting and publishes corrected records; the storage-backed restart recovery belongs to Platform #5150. Reload, funding redelivery, and finality/checkpoint regressions are covered downstream. Deliberate interruption between persisting funding and its correction remains untested, so these results are not a claim of crash atomicity.
🤖 Co-authored by Claudius the Magnificent AI Agent
PR Hygiene ·
b6fb3a2/skip-botsproceeds without the ones not yet reported/self-revieweddash-spv-ffi/src/callbacks.rs) — QuantumExplorer or ZocoLini or xdustinfacekey-wallet-manager(key-wallet-manager/src/event_tests.rs,key-wallet-manager/src/events.rs,key-wallet-manager/src/process_block.rs) — QuantumExplorer or ZocoLini or xdustinfacekey-wallet(key-wallet/README.md,key-wallet/src/managed_account/managed_account_ref.rs,key-wallet/src/managed_account/managed_core_funds_account.rsand 3 more) — QuantumExplorer or ZocoLini or xdustinfaceWhen every box is checked the
PR Hygienecheck passes and this can merge.Summary by CodeRabbit
Bug Fixes
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