fix: address verified findings from the dashpay m1 deep review#3997
fix: address verified findings from the dashpay m1 deep review#3997QuantumExplorer wants to merge 7 commits into
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… by scalar removal The derive-sign-destroy refactor (930c100) deleted IdentityKeyEntry.private_key but missed the sqlite-feature-gated wire constructor and two integration tests, breaking cargo check --all-features. The scalar-drop round-trip test is repurposed to pin breadcrumb-metadata preservation, which is the property that remains. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…re broadcast put_to_platform re-derived the id itself when entropy was None but trusted Some(entropy) blindly, so any two-phase create/broadcast flow that paired a document with the wrong entropy only failed at consensus (InvalidDocumentTransitionIdError) — the class of bug the contact-request entropy fix addressed caller-side. The choke point now recomputes the id from the supplied entropy and rejects mismatches locally. Also promotes recipient_key_purpose_is_valid to a public export so the wallet validator shares the DECRYPTION-or-ENCRYPTION cohort policy instead of hardcoding a second copy. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…tness, changeset merge reconciliation Review fixes on the DashPay M1 branch, each pinned by a test that fails against the unfixed code: - Sent-side rotation supersede: add_sent_contact_request no longer no-ops when an established contact re-sends with a new accountReference; outgoing_request advances in place (metadata preserved), and the sent-doc ingest collapses to the newest doc per recipient, so rotation no longer bricks after one use and restore-from-seed tracks the freshest reference. - Rotation teardown survives restart: stale external accounts are detected and re-torn-down/re-enqueued at load and sweep time instead of relying on the in-memory pending queue that a restart wiped. - Accept adopt-path establishes the contact before the final lookup instead of erroring after account registrations already ran. - Pending-crypto drain removes queue entries only when they still hold the drained payload, so a rotation upserted mid-drain is not silently dropped. - Auto-accept verification failures are marked per (sender, proof) so attacker-controlled garbage proofs stop re-enqueueing every sweep and pinning the unlock indicator; transient failures stay retryable. - payment_channel_broken clears on successful external-account registration so healed channels stop reporting broken forever. - ContactChangeSet::merge reconciles insert-vs-tombstone last-write-wins per key for all three pairs (ignored/unignored, sent/removed_sent, incoming/removed_incoming) — the fixed INSERT-before-DELETE apply order made a merged both-sets changeset always resolve to the tombstone. - ECDH shared secrets stay in Zeroizing end-to-end through the ContactCryptoProvider trait. - Cleanups: shared key-purpose predicate (from dash-sdk), crate now_ms() util, shared profile query + payment-recording helpers, batched sync_profiles with persist-on-change, generation-guard port to the address/identity sync managers, test injection + honest docs for the DashPaySdkWriter seam. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…hygiene, narrow profile read - ContactRequestFFI carries accepted_accounts (additive length+pointer fields) and apply_contact_rows restores it, matching the SQLite backend, so the SwiftData path stops resetting the field on relaunch. - platform_wallet_pubkey_hash_from_private_key wipes its temporary scalar; the resolver crypto provider forwards Zeroizing instead of stripping it. - The sign-time pubkey-binding decision moves into the shared platform-wallet helper aligned with rs-dpp's discovery-time validate_private_key_bytes instead of an FFI-local mirror. - platform_wallet_get_dashpay_profile clones only the profile field instead of the whole ManagedIdentity. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…y routing, accepted_accounts persistence - backfillCore no longer saves the shared background context mid changeset round; it defers until the round closes, preserving store() atomicity (pinned alongside the existing open-round test). - The signer routes derive-sign-destroy by attempting the resolver and falling back on its unsupported-key-type error instead of mirroring the Rust key-type set in Swift; canSign matches what sign can do. - The persistence handler persists and restores the new accepted_accounts field on established-contact rows. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…en-contact recovery, shared profile lookup - TransactionListView scopes the DashPay payment/counterparty join to the displayed wallet's identities so multi-identity stores stop mislabeling direction. - The send-success toast shows the txid in display byte order, matching history rows and explorers. - HiddenContactsView (mirroring the ignored-senders screen) makes hidden contacts recoverable; unhide preserves alias/note. - The four copy-pasted cachedProfile helpers collapse into one shared lookup in DashPayContactMeta, and ContactsView derives its row list once per body evaluation. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…rvatively on the sqlite path The sqlite backend has no column for the new external_account_reference marker, so restores yield None — forcing the next sweep to re-verify the external account once and re-stamp it, which is the safe default for the rotation self-heal. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Code Review
Well-scoped PR fixing 20+ prior deep-review findings across DashPay wallet correctness (Rust core, FFI, Swift). Every core fix I traced is logically sound and backed by targeted tests. No blocking correctness or consensus issues survive scoping. Several convergent suggestions worth addressing before merge: two persist-order patterns in the new rotation-supersede code that leave memory ahead of disk on persister failure, a wall-clock-millisecond freshness token in the deferred-crypto retain that is not guaranteed-unique, and an accept-adopt path that stamps the external-account marker after a no-op registration. The FFI ABI-break finding is a false positive for this monorepo (compile-time layout guard forces both sides to rebuild together; layout guard was correctly updated).
🟡 4 suggestion(s) | 💬 5 nitpick(s)
Source: reviewers: opus (general), claude-sonnet-5 (general), gpt-5.5 (general), opus (security-auditor), claude-sonnet-5 (security-auditor), gpt-5.5 (security-auditor), opus (rust-quality), claude-sonnet-5 (rust-quality), gpt-5.5 (rust-quality), opus (ffi-engineer), claude-sonnet-5 (ffi-engineer), gpt-5.5 (ffi-engineer); verifier: opus; specialists: security-auditor, rust-quality, ffi-engineer.
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-platform-wallet/src/wallet/identity/state/managed_identity/contact_requests.rs`:
- [SUGGESTION] packages/rs-platform-wallet/src/wallet/identity/state/managed_identity/contact_requests.rs:91-105: Sent-side rotation supersede mutates memory before the fallible persist
The new rotation-supersede branch in `add_sent_contact_request` assigns `contact.outgoing_request = request` (line 95) BEFORE calling `persister.store(cs.into())?` (line 104). If the store fails, the method returns `Err`, but `self.established_contacts` has already advanced to the new outgoing reference. The sync caller intentionally leaves the sent cursor unadvanced on error so the next sweep retries — but the retry now sees the same reference in memory and hits the no-op guard on line 85 (`existing.outgoing_request.account_reference == request.account_reference`), returning `Ok(())` without re-persisting. The rotation is silently lost from disk for the process lifetime; only a restart (which re-fetches from platform) can heal it.
This is the mirror-image of the persist-before-commit pattern the sibling `set_contact_metadata` fix uses in this same PR. Build a cloned updated contact, persist with `?`, then commit to `established_contacts` only after the store succeeds.
In `packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs`:
- [SUGGESTION] packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs:2445-2467: note_external_account_registered mutates memory before persist — persist failure suppresses in-process retries
`note_external_account_registered` sets `contact.external_account_reference = Some(current_reference)` and `contact.payment_channel_broken = false` on the in-memory contact BEFORE `self.persister.store(cs.into())`. If the persist fails, memory has the fresh marker + cleared broken flag but disk still holds the stale marker / broken flag, and the early-return guard on line 2447 (`if already_current && !contact.payment_channel_broken { return; }`) will suppress every subsequent invocation for the same contact within the process. The sweep's `external_account_needs_rebuild` predicate also compares against the in-memory marker (line 930), so it will see memory == current_reference and stop enqueueing rebuilds — nothing in-process retries the persist. Self-healing only happens across a restart when the marker reloads as `None`/stale from SQLite.
This is the same ordering the newly-fixed `set_contact_metadata` inverted. Build the snapshot, persist first, then commit to memory only on `Ok` so a persist failure leaves memory stale and the sweep keeps triggering rebuilds until a persist succeeds.
- [SUGGESTION] packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs:897-911: retain_drained_by_token uses a wall-clock-millisecond freshness token
`retain_drained_by_token` treats `(key, enqueued_at_ms)` as a unique snapshot token, but `enqueued_at_ms` is a millisecond `SystemTime` timestamp and is documented on `PendingContactCrypto` as observability/ordering only. In principle, a concurrent `upsert_pending_contact_crypto` refreshing a payload could produce the same millisecond as the drained snapshot's entry (either through same-ms upsert or a clock rollback), making the token equal; the retain would then remove the fresh payload and persist-clear it, re-introducing the class of silent queue loss this helper is meant to prevent.
In practice the drain does network I/O so a same-ms collision is unlikely, but the token is not guaranteed unique by construction. Prefer a monotonic per-entry generation counter (e.g., a `u64` bumped on every upsert), or compare the full snapshotted `PendingContactCrypto` value, so freshness is not tied to wall-clock precision or monotonicity.
- [SUGGESTION] packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs:2838-2852: note_external_account_registered stamps marker after register_external_contact_account no-ops on an existing (possibly stale) account
`accept_register_external_validated` calls `register_external_contact_account` and unconditionally calls `note_external_account_registered` on `Ok(())`. But `register_external_contact_account` (contacts.rs:400-421) returns `Ok(())` without decrypting or replacing anything when `dashpay_external_accounts.contains_key(&key)` — the account key is `(index, user_id, friend_id)`, independent of `account_reference`.
Race scenario the F2 self-heal is designed to catch: cold restart with `external_account_reference = None` and a persisted, stale `dashpay_external_accounts` row built from the OLD xpub. The rotation self-heal in the sync sweep tears down + rebuilds. If the user accepts a rotated incoming request before the sweep's teardown runs, the accept path's register no-ops (row already there) and this code stamps the marker as current with `contact.incoming_request.account_reference`. Now `external_account_needs_rebuild` returns false and the sweep will never rebuild — `send_payment` derives addresses from the old xpub the contact no longer watches.
Either surface an `already_existed` result from `register_external_contact_account` so this path only stamps when a rebuild actually happened, or have the accept path force teardown before registering.
| let contact = self | ||
| .established_contacts | ||
| .get_mut(&recipient_id) | ||
| .expect("presence checked above"); | ||
| contact.outgoing_request = request; | ||
| let mut cs = ContactChangeSet::default(); | ||
| cs.established.insert( | ||
| SentContactRequestKey { | ||
| owner_id, | ||
| recipient_id, | ||
| }, | ||
| contact.clone(), | ||
| ); | ||
| persister.store(cs.into())?; | ||
| return Ok(()); |
There was a problem hiding this comment.
🟡 Suggestion: Sent-side rotation supersede mutates memory before the fallible persist
The new rotation-supersede branch in add_sent_contact_request assigns contact.outgoing_request = request (line 95) BEFORE calling persister.store(cs.into())? (line 104). If the store fails, the method returns Err, but self.established_contacts has already advanced to the new outgoing reference. The sync caller intentionally leaves the sent cursor unadvanced on error so the next sweep retries — but the retry now sees the same reference in memory and hits the no-op guard on line 85 (existing.outgoing_request.account_reference == request.account_reference), returning Ok(()) without re-persisting. The rotation is silently lost from disk for the process lifetime; only a restart (which re-fetches from platform) can heal it.
This is the mirror-image of the persist-before-commit pattern the sibling set_contact_metadata fix uses in this same PR. Build a cloned updated contact, persist with ?, then commit to established_contacts only after the store succeeds.
| let contact = self | |
| .established_contacts | |
| .get_mut(&recipient_id) | |
| .expect("presence checked above"); | |
| contact.outgoing_request = request; | |
| let mut cs = ContactChangeSet::default(); | |
| cs.established.insert( | |
| SentContactRequestKey { | |
| owner_id, | |
| recipient_id, | |
| }, | |
| contact.clone(), | |
| ); | |
| persister.store(cs.into())?; | |
| return Ok(()); | |
| // Different outgoing reference → a rotation re-send. Advance | |
| // `outgoing_request` in place so the next rotation reads the | |
| // fresh version, preserving all user metadata. | |
| let mut updated = existing.clone(); | |
| updated.outgoing_request = request; | |
| let mut cs = ContactChangeSet::default(); | |
| cs.established.insert( | |
| SentContactRequestKey { | |
| owner_id, | |
| recipient_id, | |
| }, | |
| updated.clone(), | |
| ); | |
| persister.store(cs.into())?; | |
| self.established_contacts.insert(recipient_id, updated); | |
| return Ok(()); |
source: ['codex']
| let current_reference = contact.incoming_request.account_reference; | ||
| let already_current = contact.external_account_reference == Some(current_reference); | ||
| if already_current && !contact.payment_channel_broken { | ||
| return; | ||
| } | ||
| contact.external_account_reference = Some(current_reference); | ||
| contact.payment_channel_broken = false; | ||
| let snapshot = contact.clone(); | ||
|
|
||
| let mut cs = crate::changeset::ContactChangeSet::default(); | ||
| cs.established.insert( | ||
| crate::changeset::SentContactRequestKey { | ||
| owner_id: *identity_id, | ||
| recipient_id: *contact_id, | ||
| }, | ||
| snapshot, | ||
| ); | ||
| if let Err(e) = self.persister.store(cs.into()) { | ||
| tracing::error!( | ||
| "Failed to persist external-account-registered changeset: {}", | ||
| e | ||
| ); | ||
| } |
There was a problem hiding this comment.
🟡 Suggestion: note_external_account_registered mutates memory before persist — persist failure suppresses in-process retries
note_external_account_registered sets contact.external_account_reference = Some(current_reference) and contact.payment_channel_broken = false on the in-memory contact BEFORE self.persister.store(cs.into()). If the persist fails, memory has the fresh marker + cleared broken flag but disk still holds the stale marker / broken flag, and the early-return guard on line 2447 (if already_current && !contact.payment_channel_broken { return; }) will suppress every subsequent invocation for the same contact within the process. The sweep's external_account_needs_rebuild predicate also compares against the in-memory marker (line 930), so it will see memory == current_reference and stop enqueueing rebuilds — nothing in-process retries the persist. Self-healing only happens across a restart when the marker reloads as None/stale from SQLite.
This is the same ordering the newly-fixed set_contact_metadata inverted. Build the snapshot, persist first, then commit to memory only on Ok so a persist failure leaves memory stale and the sweep keeps triggering rebuilds until a persist succeeds.
source: ['claude']
| fn retain_drained_by_token( | ||
| queue: &mut Vec<crate::changeset::PendingContactCrypto>, | ||
| cleared_with_token: &[(crate::changeset::PendingContactCryptoKey, u64)], | ||
| ) -> Vec<crate::changeset::PendingContactCryptoKey> { | ||
| let mut removed = Vec::new(); | ||
| queue.retain(|e| { | ||
| let stale_match = cleared_with_token | ||
| .iter() | ||
| .any(|(k, tok)| *k == e.key() && *tok == e.enqueued_at_ms); | ||
| if stale_match { | ||
| removed.push(e.key()); | ||
| } | ||
| !stale_match | ||
| }); | ||
| removed |
There was a problem hiding this comment.
🟡 Suggestion: retain_drained_by_token uses a wall-clock-millisecond freshness token
retain_drained_by_token treats (key, enqueued_at_ms) as a unique snapshot token, but enqueued_at_ms is a millisecond SystemTime timestamp and is documented on PendingContactCrypto as observability/ordering only. In principle, a concurrent upsert_pending_contact_crypto refreshing a payload could produce the same millisecond as the drained snapshot's entry (either through same-ms upsert or a clock rollback), making the token equal; the retain would then remove the fresh payload and persist-clear it, re-introducing the class of silent queue loss this helper is meant to prevent.
In practice the drain does network I/O so a same-ms collision is unlikely, but the token is not guaranteed unique by construction. Prefer a monotonic per-entry generation counter (e.g., a u64 bumped on every upsert), or compare the full snapshotted PendingContactCrypto value, so freshness is not tied to wall-clock precision or monotonicity.
source: ['codex']
| our_identity_id, | ||
| &contact_identity, | ||
| contact_encrypted_xpub, | ||
| shared, | ||
| shared.clone(), | ||
| ) | ||
| .await | ||
| .map_err(RegisterExternalError::into_inner)?; | ||
|
|
||
| // The external account is built; surface the contact's account label | ||
| // from the same ECDH shared key (best-effort, cosmetic — a label | ||
| // failure never fails the accept). | ||
| // The external account is built from the current incoming reference: | ||
| // stamp the rotation self-heal marker and clear any stale | ||
| // broken-channel flag (a user re-accept of a healed channel must stop | ||
| // reporting broken — the sweep never re-registers broken contacts). | ||
| self.note_external_account_registered(our_identity_id, contact_id) | ||
| .await; |
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🟡 Suggestion: note_external_account_registered stamps marker after register_external_contact_account no-ops on an existing (possibly stale) account
accept_register_external_validated calls register_external_contact_account and unconditionally calls note_external_account_registered on Ok(()). But register_external_contact_account (contacts.rs:400-421) returns Ok(()) without decrypting or replacing anything when dashpay_external_accounts.contains_key(&key) — the account key is (index, user_id, friend_id), independent of account_reference.
Race scenario the F2 self-heal is designed to catch: cold restart with external_account_reference = None and a persisted, stale dashpay_external_accounts row built from the OLD xpub. The rotation self-heal in the sync sweep tears down + rebuilds. If the user accepts a rotated incoming request before the sweep's teardown runs, the accept path's register no-ops (row already there) and this code stamps the marker as current with contact.incoming_request.account_reference. Now external_account_needs_rebuild returns false and the sweep will never rebuild — send_payment derives addresses from the old xpub the contact no longer watches.
Either surface an already_existed result from register_external_contact_account so this path only stamps when a rebuild actually happened, or have the accept path force teardown before registering.
source: ['codex']
| /// Map of incoming contact requests (not yet accepted) keyed by sender ID | ||
| pub incoming_contact_requests: BTreeMap<Identifier, ContactRequest>, | ||
|
|
||
| /// DIP-15 auto-accept proofs that failed cryptographic verification (or | ||
| /// were expired / malformed) during a [`drain_auto_accepts`] pass, keyed by | ||
| /// `SHA256(sender_id ‖ proof_bytes)`. Consulted by the sync sweep's | ||
| /// auto-accept enqueue gate so a structurally-valid but cryptographically | ||
| /// bogus `autoAcceptProof` on an attacker-published contact request is not | ||
| /// re-enqueued every sweep (which would keep the "waiting to finish setup" | ||
| /// banner permanently tripped). | ||
| /// | ||
| /// Keying on `(sender, proof)` — not on the sender alone — means a | ||
| /// **different** proof from the same sender still enqueues (a genuine | ||
| /// re-issued proof is not blocked by a prior bad one). Only PERMANENT | ||
| /// failures (invalid signature / expired / malformed / bad index) are | ||
| /// recorded here; transient failures (provider unavailable, reciprocal-send | ||
| /// failure) stay retryable and are never marked. | ||
| /// | ||
| /// In-memory only (never persisted): a relaunch clears it, so a bad proof is | ||
| /// retried at most once per launch. The request stays manually acceptable | ||
| /// meanwhile, and the sender never establishes off a bogus proof — so | ||
| /// retrying once per launch is harmless and avoids a persisted tombstone for | ||
| /// attacker-controlled input. | ||
| pub auto_accept_verify_failed: std::collections::BTreeSet<[u8; 32]>, |
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💬 Nitpick: auto_accept_verify_failed grows without eviction for the lifetime of the process
auto_accept_verify_failed: BTreeSet<[u8; 32]> is keyed by SHA256(sender_id ‖ proof) — one entry per distinct proof blob. It is only ever inserted into, never evicted, and cleared only by process restart. A sender willing to spend the platform-credit cost of publishing many distinct malformed contactRequest documents (varying the trailing bytes or account_reference to make each proof distinct) can grow this set for the life of the process. The exploit is attacker-funded (each doc-create costs credits) and the design comment at contact_requests.rs:207-210 documents the in-memory/per-launch tradeoff, so this is a hardening gap rather than a functional bug. Consider capping the set (LRU/max-size, or per-sender scoping with a small cap) — three reviewers converged on this as a defense-in-depth item.
source: ['claude']
| /// Whether the mnemonic resolver derive-signs an identity `keyType`. | ||
| /// | ||
| /// Preflight-only. The sign trampoline itself does NOT consult this — it | ||
| /// attempts the resolver unconditionally and lets Rust decide via the | ||
| /// `UNSUPPORTED_KEY_TYPE` tag. But `canSign` has no data to sign and no | ||
| /// data-free way to ask Rust the same question, so it approximates the | ||
| /// resolver's supported set here to stay consistent with sign-time routing: | ||
| /// a breadcrumb-only row (no stored scalar) is only reported signable when | ||
| /// its type is one the resolver handles. | ||
| /// | ||
| /// The set mirrors `dash_sdk_sign_with_mnemonic_resolver_and_path` | ||
| /// (`ECDSA_SECP256K1 = 0`, `ECDSA_HASH160 = 2`). This is the one remaining | ||
| /// Swift-side mirror of a Rust decision; a lightweight FFI predicate | ||
| /// (`dash_sdk_resolver_supports_key_type`) would let this drop too. | ||
| static func resolverCanDeriveSign(keyType: UInt8) -> Bool { | ||
| keyType == 0 || keyType == 2 |
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💬 Nitpick: canSign preflight re-implements Rust's resolver key-type policy in Swift
resolverCanDeriveSign(keyType:) hardcodes keyType == 0 || keyType == 2 as a Swift-side copy of the resolver's supported-key-type set. The sign trampoline was correctly reworked in this PR to route on Rust's UNSUPPORTED_KEY_TYPE tag instead of mirroring the set, but canSign still needs a synchronous answer. Today the two sides agree, so there is no live bug, but per packages/swift-sdk/CLAUDE.md ("No re-implementing protocol constants as Swift mirrors") this is exactly the pattern the project has decided to eliminate. If Rust's resolver-supported set is ever extended, canSign would silently under-report signability until Swift is updated. Consider adding a small dash_sdk_resolver_supports_key_type(u8) -> bool FFI predicate and dropping the Swift constant.
source: ['claude']
| //! Concrete helper over the SDK's DashPay write/broadcast surface. | ||
| //! | ||
| //! The fetch half of the DashPay network layer is already testable | ||
| //! through the dash-sdk built-in mock (`SdkBuilder::new_mock` + | ||
| //! `expect_fetch`/`expect_fetch_many`, as the `identity_sync.rs` tests | ||
| //! demonstrate). The *write* half is not: the two operations | ||
| //! `IdentityWallet` performs over the SDK — | ||
| //! The two operations `IdentityWallet` performs over the SDK — | ||
| //! [`Sdk::send_contact_request`](dash_sdk::Sdk::send_contact_request) | ||
| //! and a document put — cannot be reached through the mock and cannot | ||
| //! be wrapped behind a `dyn` trait *as the SDK exposes them*. | ||
| //! `send_contact_request` is generic over **seven** type parameters | ||
| //! (the signer plus three ECDH/xpub closure pairs), so it is not | ||
| //! object-safe; the document put rides on the signer-generic | ||
| //! and a document put — cannot be expressed as plain method calls at | ||
| //! the call sites: `send_contact_request` is generic over **seven** | ||
| //! type parameters (the signer plus three ECDH/xpub closure pairs) and | ||
| //! the document put rides on the signer-generic | ||
| //! [`PutDocument`](dash_sdk::platform::transition::put_document::PutDocument) | ||
| //! trait. | ||
| //! trait. [`SdkWriter`] erases those generics behind two concrete | ||
| //! methods that take by-value, already-derived inputs plus a borrowed | ||
| //! `&dyn Signer<IdentityPublicKey>`. | ||
| //! | ||
| //! This module defines ONE object-safe trait, | ||
| //! [`DashPaySdkWriter`], exposing exactly those two concrete | ||
| //! operations. `IdentityWallet` keeps doing all of the derivation | ||
| //! (key-index resolution, ECDH-key derivation, xpub derivation, | ||
| //! avatar hashing, document construction); the seam receives the | ||
| //! already-derived primitives plus a borrowed `&dyn | ||
| //! Signer<IdentityPublicKey>` and performs the final SDK call. | ||
| //! Production wallets hold the default [`SdkWriter`] (an `Arc<Sdk>` | ||
| //! wrapper); tests substitute a recording / stubbing implementation | ||
| //! to assert the broadcast inputs without a live network. | ||
| //! | ||
| //! Keeping the trait to two methods is deliberate: this is a test | ||
| //! seam, not a refactor. Everything the SDK call needs that | ||
| //! `IdentityWallet` can compute up front travels in by value so the | ||
| //! trait stays `dyn`-compatible. | ||
| //! `IdentityWallet` keeps doing all of the derivation (key-index | ||
| //! resolution, ECDH-key derivation, xpub derivation, avatar hashing, | ||
| //! document construction); this helper receives the already-derived | ||
| //! primitives and performs the final SDK call. | ||
|
|
||
| use std::sync::Arc; | ||
|
|
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💬 Nitpick: PR description and SPEC still claim DashPaySdkWriter is an injectable test seam, but the trait was removed
The PR description says D3 DashPaySdkWriter "gets a real test injection point + a recording-stub test; docs now match reality." The diff removes the DashPaySdkWriter trait and #[async_trait] boxing entirely, converting sdk_writer into a concrete Arc<SdkWriter> field. No recording-stub test is added — no DashPaySdkWriter remains in the tree. docs/dashpay/SPEC.md:586-591 still lists DashPaySdkWriter as DONE (2026-06-10) with a description of the trait it now contradicts. The simplification (drop the unused seam) is fine — but the PR description and the SPEC should be reconciled with the code so a future reader isn't looking for a trait that no longer exists.
source: ['claude']
2 participants
Issue being fixed or feature implemented
Fixes the verified findings from the deep review of #3841 (correctness findings, design/conventions findings). Every finding below was adversarially verified against the branch head (
e20d730) before being fixed; two review candidates were refuted during verification and are not addressed (F10 optimistic-clear, F13 regtest-HRP).What was done?
Correctness (finding ids from the review):
add_sent_contact_requestadvances an established contact'soutgoing_requeston a rotation re-send instead of no-opping (metadata preserved), and the sent-doc ingest collapses newest-per-recipient — rotation no longer bricks after one use, and restore-from-seed tracks the freshest reference.external_account_referenceself-heal marker) instead of relying on the in-memory pending queue a restart wiped.backfillCoreno longer commits the shared context mid changeset round; the backfill defers until the round closes, preservingstore()atomicity.ContactChangeSet::mergereconciles insert-vs-tombstone last-write-wins per key for all three pairs (ignored/unignored,sent/removed_sent,incoming/removed_incoming); the fixed INSERT-before-DELETE apply order previously made a merged both-sets changeset always resolve to the tombstone.ContactRequestNotFoundafter account registrations already ran.TransactionListViewscopes the DashPay payment/counterparty join to the displayed wallet's identities (multi-identity stores no longer mislabel direction).canSignmatches what sign can do.accepted_accountsround-trips on the FFI/SwiftData path (additiveContactRequestFFIfields + Swift persist/restore), matching the SQLite backend.payment_channel_brokenclears on successful external-account registration.platform_wallet_pubkey_hash_from_private_key; ECDH shared secrets stay inZeroizingend-to-end throughContactCryptoProvider.HiddenContactsView(mirrors the ignored-senders screen); unhide preserves alias/note.Design / conventions:
put_to_platformverifies a caller-supplied entropy actually derives the document id before broadcasting, converting the consensus-onlyInvalidDocumentTransitionIdErrorfailure mode into a local error for every future two-phase flow.dash-sdk) owns the DECRYPTION-or-ENCRYPTION cohort policy across the SDK check, wallet validator, and selector.now_ms()util, shared profile query, shared payment-recording helper.sync_profilesbatches identities through the existingIn-chunk query and persists only on change.platform_address_syncandidentity_sync(the unconditional cancel-slot clear was a latent stop()+start() clobber); full shared-runner extraction deferred.DashPaySdkWritergets a real test injection point + a recording-stub test; docs now match reality.cachedProfilehelpers collapse into one shared lookup;ContactsViewderives its row list once per body evaluation; the FFI profile accessor clones one field instead of the wholeManagedIdentity.--all-featurescompile break inplatform-wallet-storage(deadprivate_keyinitializers left by the scalar-removal refactor).Deferred (tracked in the review comments, deliberately not in this PR): full shared sync-runner extraction (D1), CompactSize codec swap to
dashcore::consensus::encode::VarInt(D5 — cross-client wire format, wants dedicated interop testing), persistence-seam re-architecture (D9), D7 sub-items a/c/d, and the FFI ignored-rows projection ordering (defense-in-depth once F4's merge fix landed).How Has This Been Tested?
cargo test -p platform-wallet -p platform-wallet-storage -p platform-wallet-ffi --all-features— green (platform-wallet lib now 422+ tests; every behavioral fix has a test that fails against the unfixed code)cargo test -p dash-sdk --features mocks,offline-testing --lib— 152 passedcargo check --all-features --all-targetson all five touched crates +cargo clippy— clean;cargo fmt --allappliedbuild_ios.sh --target sim—** BUILD SUCCEEDED **(Rust xcframework with regenerated header, SwiftDashSDK, SwiftExampleApp)xcodebuild test -scheme SwiftDashSDK, iPhone 16 sim), excludingIdentityResolverSignIntegrationTests— its 2 tests fail withkeychainError(-34018)(missing keychain entitlement in the headless package-test runner); that file andWalletStorage.swiftare untouched by this PR (added on the base branch infa1098c), so the failure is environmental and pre-existingBreaking Changes
None. FFI struct additions are additive (new fields at the end of
ContactRequestFFI); theContactCryptoProvider::ecdh_shared_secretreturn type widened toZeroizing<[u8;32]>within the workspace (no external consumers).Checklist:
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