Update Rust dependencies with checkpoint and memo bugfixes

The previous FFI repo revisions no longer exist; commits between
87faf91096 and here will not build.

Example/ZcashLightClientSample/ZcashLightClientSample.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -158,7 +158,7 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/zcash-hackworks/zcash-light-client-ffi",
       "state" : {
-        "revision" : "7718b764027c2a4b9f654ed0b712b87ce881348f"
+        "revision" : "728cede1b36eb24c5c6a41e509a0358c1bd97f9c"
       }
     }
   ],

Package.resolved

@@ -104,7 +104,7 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/zcash-hackworks/zcash-light-client-ffi",
       "state" : {
-        "revision" : "7718b764027c2a4b9f654ed0b712b87ce881348f"
+        "revision" : "728cede1b36eb24c5c6a41e509a0358c1bd97f9c"
       }
     }
   ],

Package.swift

@@ -16,7 +16,7 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/grpc/grpc-swift.git", from: "1.14.0"),
         .package(url: "https://github.com/stephencelis/SQLite.swift.git", from: "0.14.1"),
-        .package(url: "https://github.com/zcash-hackworks/zcash-light-client-ffi", revision: "7718b764027c2a4b9f654ed0b712b87ce881348f")
+        .package(url: "https://github.com/zcash-hackworks/zcash-light-client-ffi", revision: "728cede1b36eb24c5c6a41e509a0358c1bd97f9c")
     ],
     targets: [
         .target(

Sources/ZcashLightClientKit/Error/ZcashError.swift

@@ -291,6 +291,9 @@ public enum ZcashError: Equatable, Error {
     /// - `rustError` contains error generated by the rust layer.
     /// ZRUST0049
     case rustSuggestScanRanges(_ rustError: String)
+    /// Invalid transaction ID length when calling ZcashRustBackend.getMemo
+    /// ZRUST0050
+    case rustGetMemoInvalidTxIdLength
     /// SQLite query failed when fetching all accounts from the database.
     /// - `sqliteError` is error produced by SQLite library.
     /// ZADAO0001
@@ -624,6 +627,7 @@ public enum ZcashError: Equatable, Error {
         case .rustPutSaplingSubtreeRoots: return "Error from rust layer when calling ZcashRustBackend.putSaplingSubtreeRoots"
         case .rustUpdateChainTip: return "Error from rust layer when calling ZcashRustBackend.updateChainTip"
         case .rustSuggestScanRanges: return "Error from rust layer when calling ZcashRustBackend.suggestScanRanges"
+        case .rustGetMemoInvalidTxIdLength: return "txId must be 32 bytes"
         case .accountDAOGetAll: return "SQLite query failed when fetching all accounts from the database."
         case .accountDAOGetAllCantDecode: return "Fetched accounts from SQLite but can't decode them."
         case .accountDAOFindBy: return "SQLite query failed when seaching for accounts in the database."
@@ -786,6 +790,7 @@ public enum ZcashError: Equatable, Error {
         case .rustPutSaplingSubtreeRoots: return .rustPutSaplingSubtreeRoots
         case .rustUpdateChainTip: return .rustUpdateChainTip
         case .rustSuggestScanRanges: return .rustSuggestScanRanges
+        case .rustGetMemoInvalidTxIdLength: return .rustGetMemoInvalidTxIdLength
         case .accountDAOGetAll: return .accountDAOGetAll
         case .accountDAOGetAllCantDecode: return .accountDAOGetAllCantDecode
         case .accountDAOFindBy: return .accountDAOFindBy

Sources/ZcashLightClientKit/Error/ZcashErrorCode.swift

@@ -161,6 +161,8 @@ public enum ZcashErrorCode: String {
     case rustUpdateChainTip = "ZRUST0048"
     /// Error from rust layer when calling ZcashRustBackend.suggestScanRanges
     case rustSuggestScanRanges = "ZRUST0049"
+    /// Invalid transaction ID length when calling ZcashRustBackend.getMemo
+    case rustGetMemoInvalidTxIdLength = "ZRUST0050"
     /// SQLite query failed when fetching all accounts from the database.
     case accountDAOGetAll = "ZADAO0001"
     /// Fetched accounts from SQLite but can't decode them.

Sources/ZcashLightClientKit/Rust/ZcashRustBackend.swift

@@ -70,8 +70,11 @@ actor ZcashRustBackend: ZcashRustBackendWelding {
         to address: String,
         value: Int64,
         memo: MemoBytes?
-    ) async throws -> Int64 {
+    ) async throws -> Data {
-        let result = usk.bytes.withUnsafeBufferPointer { uskPtr in
+        var contiguousTxIdBytes = ContiguousArray<UInt8>([UInt8](repeating: 0x0, count: 32))
+
+        let success = contiguousTxIdBytes.withUnsafeMutableBufferPointer { txIdBytePtr in
+            usk.bytes.withUnsafeBufferPointer { uskPtr in
                 zcashlc_create_to_address(
                     dbData.0,
                     dbData.1,
@@ -86,15 +89,19 @@ actor ZcashRustBackend: ZcashRustBackendWelding {
                     outputParamsPath.1,
                     networkType.networkId,
                     minimumConfirmations,
-                useZIP317Fees
+                    useZIP317Fees,
+                    txIdBytePtr.baseAddress
                 )
             }
+        }
 
-        guard result > 0 else {
+        guard success else {
             throw ZcashError.rustCreateToAddress(lastErrorMessage(fallback: "`createToAddress` failed with unknown error"))
         }
 
-        return result
+        return contiguousTxIdBytes.withUnsafeBufferPointer { txIdBytePtr in
+            Data(txIdBytePtr)
+        }
     }
 
     func decryptAndStoreTransaction(txBytes: [UInt8], minedHeight: Int32) async throws {
@@ -179,25 +186,16 @@ actor ZcashRustBackend: ZcashRustBackendWelding {
         return UnifiedAddress(validatedEncoding: address, networkType: networkType)
     }
 
-    func getReceivedMemo(idNote: Int64) async -> Memo? {
+    func getMemo(txId: Data, outputIndex: UInt16) async throws -> Memo? {
+        guard txId.count == 32 else {
+            throw ZcashError.rustGetMemoInvalidTxIdLength
+        }
+
         var contiguousMemoBytes = ContiguousArray<UInt8>(MemoBytes.empty().bytes)
         var success = false
 
         contiguousMemoBytes.withUnsafeMutableBufferPointer { memoBytePtr in
-            success = zcashlc_get_received_memo(dbData.0, dbData.1, idNote, memoBytePtr.baseAddress, networkType.networkId)
+            success = zcashlc_get_memo(dbData.0, dbData.1, txId.bytes, outputIndex, memoBytePtr.baseAddress, networkType.networkId)
-        }
-
-        guard success else { return nil }
-
-        return (try? MemoBytes(contiguousBytes: contiguousMemoBytes)).flatMap { try? $0.intoMemo() }
-    }
-
-    func getSentMemo(idNote: Int64) async -> Memo? {
-        var contiguousMemoBytes = ContiguousArray<UInt8>(MemoBytes.empty().bytes)
-        var success = false
-
-        contiguousMemoBytes.withUnsafeMutableBytes { memoBytePtr in
-            success = zcashlc_get_sent_memo(dbData.0, dbData.1, idNote, memoBytePtr.baseAddress, networkType.networkId)
         }
 
         guard success else { return nil }
@@ -607,8 +605,11 @@ actor ZcashRustBackend: ZcashRustBackendWelding {
         usk: UnifiedSpendingKey,
         memo: MemoBytes?,
         shieldingThreshold: Zatoshi
-    ) async throws -> Int64 {
+    ) async throws -> Data {
-        let result = usk.bytes.withUnsafeBufferPointer { uskBuffer in
+        var contiguousTxIdBytes = ContiguousArray<UInt8>([UInt8](repeating: 0x0, count: 32))
+
+        let success = contiguousTxIdBytes.withUnsafeMutableBufferPointer { txIdBytePtr in
+            usk.bytes.withUnsafeBufferPointer { uskBuffer in
                 zcashlc_shield_funds(
                     dbData.0,
                     dbData.1,
@@ -622,15 +623,19 @@ actor ZcashRustBackend: ZcashRustBackendWelding {
                     outputParamsPath.1,
                     networkType.networkId,
                     minimumConfirmations,
-                useZIP317Fees
+                    useZIP317Fees,
+                    txIdBytePtr.baseAddress
                 )
             }
+        }
 
-        guard result > 0 else {
+        guard success else {
             throw ZcashError.rustShieldFunds(lastErrorMessage(fallback: "`shieldFunds` failed with unknown error"))
         }
 
-        return result
+        return contiguousTxIdBytes.withUnsafeBufferPointer { txIdBytePtr in
+            Data(txIdBytePtr)
+        }
     }
 
     nonisolated func consensusBranchIdFor(height: Int32) throws -> Int32 {

Sources/ZcashLightClientKit/Rust/ZcashRustBackendWelding.swift

@@ -50,7 +50,7 @@ protocol ZcashRustBackendWelding {
         to address: String,
         value: Int64,
         memo: MemoBytes?
-    ) async throws -> Int64
+    ) async throws -> Data
 
     /// Scans a transaction for any information that can be decrypted by the accounts in the wallet, and saves it to the wallet.
     /// - parameter tx:     the transaction to decrypt
@@ -89,14 +89,10 @@ protocol ZcashRustBackendWelding {
     ///     - `rustGetNextAvailableAddressInvalidAddress` if generated unified address isn't valid.
     func getNextAvailableAddress(account: Int32) async throws -> UnifiedAddress
 
-    /// Get received memo from note.
+    /// Get memo from note.
-    /// - parameter idNote: note_id of note where the memo is located
+    /// - parameter txId: ID of transaction containing the note
-    func getReceivedMemo(idNote: Int64) async -> Memo?
+    /// - parameter outputIndex: output index of note
-
+    func getMemo(txId: Data, outputIndex: UInt16) async throws -> Memo?
-    /// Get sent memo from note.
-    /// - parameter idNote: note_id of note where the memo is located
-    /// - Returns: a `Memo` if any
-    func getSentMemo(idNote: Int64) async -> Memo?
 
     /// Get the verified cached transparent balance for the given address
     /// - parameter account; the account index to query
@@ -223,7 +219,7 @@ protocol ZcashRustBackendWelding {
         usk: UnifiedSpendingKey,
         memo: MemoBytes?,
         shieldingThreshold: Zatoshi
-    ) async throws -> Int64
+    ) async throws -> Data
 
     /// Gets the consensus branch id for the given height
     /// - Parameter height: the height you what to know the branch id for

Sources/ZcashLightClientKit/Transaction/WalletTransactionEncoder.swift

@@ -71,7 +71,7 @@ class WalletTransactionEncoder: TransactionEncoder {
         )
 
         logger.debug("transaction id: \(txId)")
-        return try await repository.find(id: txId)
+        return try await repository.find(rawID: txId)
     }
     
     func createSpend(
@@ -80,7 +80,7 @@ class WalletTransactionEncoder: TransactionEncoder {
         to address: String,
         memoBytes: MemoBytes?,
         from accountIndex: Int
-    ) async throws -> Int {
+    ) async throws -> Data {
         guard ensureParams(spend: self.spendParamsURL, output: self.outputParamsURL) else {
             throw ZcashError.walletTransEncoderCreateTransactionMissingSaplingParams
         }
@@ -92,7 +92,7 @@ class WalletTransactionEncoder: TransactionEncoder {
             memo: memoBytes
         )
 
-        return Int(txId)
+        return txId
     }
     
     func createShieldingTransaction(
@@ -109,7 +109,7 @@ class WalletTransactionEncoder: TransactionEncoder {
         )
         
         logger.debug("transaction id: \(txId)")
-        return try await repository.find(id: txId)
+        return try await repository.find(rawID: txId)
     }
 
     func createShieldingSpend(
@@ -117,7 +117,7 @@ class WalletTransactionEncoder: TransactionEncoder {
         shieldingThreshold: Zatoshi,
         memo: MemoBytes?,
         accountIndex: Int
-    ) async throws -> Int {
+    ) async throws -> Data {
         guard ensureParams(spend: self.spendParamsURL, output: self.outputParamsURL) else {
             throw ZcashError.walletTransEncoderShieldFundsMissingSaplingParams
         }
@@ -128,7 +128,7 @@ class WalletTransactionEncoder: TransactionEncoder {
             shieldingThreshold: shieldingThreshold
         )
                 
-        return Int(txId)
+        return txId
     }
 
     func submit(

Tests/TestUtils/Sourcery/GeneratedMocks/AutoMockable.generated.swift

@@ -2097,16 +2097,16 @@ actor ZcashRustBackendWeldingMock: ZcashRustBackendWelding {
         return createToAddressUskToValueMemoCallsCount > 0
     }
     var createToAddressUskToValueMemoReceivedArguments: (usk: UnifiedSpendingKey, address: String, value: Int64, memo: MemoBytes?)?
-    var createToAddressUskToValueMemoReturnValue: Int64!
+    var createToAddressUskToValueMemoReturnValue: Data!
-    func setCreateToAddressUskToValueMemoReturnValue(_ param: Int64) async {
+    func setCreateToAddressUskToValueMemoReturnValue(_ param: Data) async {
         createToAddressUskToValueMemoReturnValue = param
     }
-    var createToAddressUskToValueMemoClosure: ((UnifiedSpendingKey, String, Int64, MemoBytes?) async throws -> Int64)?
+    var createToAddressUskToValueMemoClosure: ((UnifiedSpendingKey, String, Int64, MemoBytes?) async throws -> Data)?
-    func setCreateToAddressUskToValueMemoClosure(_ param: ((UnifiedSpendingKey, String, Int64, MemoBytes?) async throws -> Int64)?) async {
+    func setCreateToAddressUskToValueMemoClosure(_ param: ((UnifiedSpendingKey, String, Int64, MemoBytes?) async throws -> Data)?) async {
         createToAddressUskToValueMemoClosure = param
     }
 
-    func createToAddress(usk: UnifiedSpendingKey, to address: String, value: Int64, memo: MemoBytes?) async throws -> Int64 {
+    func createToAddress(usk: UnifiedSpendingKey, to address: String, value: Int64, memo: MemoBytes?) async throws -> Data {
         if let error = createToAddressUskToValueMemoThrowableError {
             throw error
         }
@@ -2276,55 +2276,36 @@ actor ZcashRustBackendWeldingMock: ZcashRustBackendWelding {
         }
     }
 
-    // MARK: - getReceivedMemo
+    // MARK: - getMemo
 
-    var getReceivedMemoIdNoteCallsCount = 0
+    var getMemoTxIdOutputIndexThrowableError: Error?
-    var getReceivedMemoIdNoteCalled: Bool {
+    func setGetMemoTxIdOutputIndexThrowableError(_ param: Error?) async {
-        return getReceivedMemoIdNoteCallsCount > 0
+        getMemoTxIdOutputIndexThrowableError = param
     }
-    var getReceivedMemoIdNoteReceivedIdNote: Int64?
+    var getMemoTxIdOutputIndexCallsCount = 0
-    var getReceivedMemoIdNoteReturnValue: Memo?
+    var getMemoTxIdOutputIndexCalled: Bool {
-    func setGetReceivedMemoIdNoteReturnValue(_ param: Memo?) async {
+        return getMemoTxIdOutputIndexCallsCount > 0
-        getReceivedMemoIdNoteReturnValue = param
     }
-    var getReceivedMemoIdNoteClosure: ((Int64) async -> Memo?)?
+    var getMemoTxIdOutputIndexReceivedArguments: (txId: Data, outputIndex: UInt16)?
-    func setGetReceivedMemoIdNoteClosure(_ param: ((Int64) async -> Memo?)?) async {
+    var getMemoTxIdOutputIndexReturnValue: Memo?
-        getReceivedMemoIdNoteClosure = param
+    func setGetMemoTxIdOutputIndexReturnValue(_ param: Memo?) async {
+        getMemoTxIdOutputIndexReturnValue = param
+    }
+    var getMemoTxIdOutputIndexClosure: ((Data, UInt16) async throws -> Memo?)?
+    func setGetMemoTxIdOutputIndexClosure(_ param: ((Data, UInt16) async throws -> Memo?)?) async {
+        getMemoTxIdOutputIndexClosure = param
     }
 
-    func getReceivedMemo(idNote: Int64) async -> Memo? {
+    func getMemo(txId: Data, outputIndex: UInt16) async throws -> Memo? {
-        getReceivedMemoIdNoteCallsCount += 1
+        if let error = getMemoTxIdOutputIndexThrowableError {
-        getReceivedMemoIdNoteReceivedIdNote = idNote
+            throw error
-        if let closure = getReceivedMemoIdNoteClosure {
+        }
-            return await closure(idNote)
+        getMemoTxIdOutputIndexCallsCount += 1
+        getMemoTxIdOutputIndexReceivedArguments = (txId: txId, outputIndex: outputIndex)
+        if let closure = getMemoTxIdOutputIndexClosure {
+            return try await closure(txId, outputIndex)
         } else {
-            return getReceivedMemoIdNoteReturnValue
+            return getMemoTxIdOutputIndexReturnValue
-        }
-    }
-
-    // MARK: - getSentMemo
-
-    var getSentMemoIdNoteCallsCount = 0
-    var getSentMemoIdNoteCalled: Bool {
-        return getSentMemoIdNoteCallsCount > 0
-    }
-    var getSentMemoIdNoteReceivedIdNote: Int64?
-    var getSentMemoIdNoteReturnValue: Memo?
-    func setGetSentMemoIdNoteReturnValue(_ param: Memo?) async {
-        getSentMemoIdNoteReturnValue = param
-    }
-    var getSentMemoIdNoteClosure: ((Int64) async -> Memo?)?
-    func setGetSentMemoIdNoteClosure(_ param: ((Int64) async -> Memo?)?) async {
-        getSentMemoIdNoteClosure = param
-    }
-
-    func getSentMemo(idNote: Int64) async -> Memo? {
-        getSentMemoIdNoteCallsCount += 1
-        getSentMemoIdNoteReceivedIdNote = idNote
-        if let closure = getSentMemoIdNoteClosure {
-            return await closure(idNote)
-        } else {
-            return getSentMemoIdNoteReturnValue
         }
     }
 
@@ -2685,16 +2666,16 @@ actor ZcashRustBackendWeldingMock: ZcashRustBackendWelding {
         return shieldFundsUskMemoShieldingThresholdCallsCount > 0
     }
     var shieldFundsUskMemoShieldingThresholdReceivedArguments: (usk: UnifiedSpendingKey, memo: MemoBytes?, shieldingThreshold: Zatoshi)?
-    var shieldFundsUskMemoShieldingThresholdReturnValue: Int64!
+    var shieldFundsUskMemoShieldingThresholdReturnValue: Data!
-    func setShieldFundsUskMemoShieldingThresholdReturnValue(_ param: Int64) async {
+    func setShieldFundsUskMemoShieldingThresholdReturnValue(_ param: Data) async {
         shieldFundsUskMemoShieldingThresholdReturnValue = param
     }
-    var shieldFundsUskMemoShieldingThresholdClosure: ((UnifiedSpendingKey, MemoBytes?, Zatoshi) async throws -> Int64)?
+    var shieldFundsUskMemoShieldingThresholdClosure: ((UnifiedSpendingKey, MemoBytes?, Zatoshi) async throws -> Data)?
-    func setShieldFundsUskMemoShieldingThresholdClosure(_ param: ((UnifiedSpendingKey, MemoBytes?, Zatoshi) async throws -> Int64)?) async {
+    func setShieldFundsUskMemoShieldingThresholdClosure(_ param: ((UnifiedSpendingKey, MemoBytes?, Zatoshi) async throws -> Data)?) async {
         shieldFundsUskMemoShieldingThresholdClosure = param
     }
 
-    func shieldFunds(usk: UnifiedSpendingKey, memo: MemoBytes?, shieldingThreshold: Zatoshi) async throws -> Int64 {
+    func shieldFunds(usk: UnifiedSpendingKey, memo: MemoBytes?, shieldingThreshold: Zatoshi) async throws -> Data {
         if let error = shieldFundsUskMemoShieldingThresholdThrowableError {
             throw error
         }

Tests/TestUtils/Stubs.swift

@@ -91,24 +91,19 @@ class RustBackendMockHelper {
         await rustBackendMock.setInitBlockMetadataDbClosure() { }
         await rustBackendMock.setWriteBlocksMetadataBlocksClosure() { _ in }
         await rustBackendMock.setInitAccountsTableUfvksClosure() { _ in }
-        await rustBackendMock.setCreateToAddressUskToValueMemoReturnValue(-1)
-        await rustBackendMock.setShieldFundsUskMemoShieldingThresholdReturnValue(-1)
         await rustBackendMock.setGetTransparentBalanceAccountReturnValue(0)
         await rustBackendMock.setGetVerifiedBalanceAccountReturnValue(0)
         await rustBackendMock.setListTransparentReceiversAccountReturnValue([])
         await rustBackendMock.setGetCurrentAddressAccountThrowableError(ZcashError.rustGetCurrentAddress("mocked error"))
         await rustBackendMock.setGetNextAvailableAddressAccountThrowableError(ZcashError.rustGetNextAvailableAddress("mocked error"))
-        await rustBackendMock.setShieldFundsUskMemoShieldingThresholdReturnValue(-1)
         await rustBackendMock.setCreateAccountSeedThrowableError(ZcashError.rustInitAccountsTableViewingKeyCotainsNullBytes)
-        await rustBackendMock.setGetReceivedMemoIdNoteReturnValue(nil)
+        await rustBackendMock.setGetMemoTxIdOutputIndexReturnValue(nil)
-        await rustBackendMock.setGetSentMemoIdNoteReturnValue(nil)
-        await rustBackendMock.setCreateToAddressUskToValueMemoReturnValue(-1)
         await rustBackendMock.setInitDataDbSeedReturnValue(.seedRequired)
         await rustBackendMock.setGetNearestRewindHeightHeightReturnValue(-1)
         await rustBackendMock.setInitBlocksTableHeightHashTimeSaplingTreeClosure() { _, _, _, _ in }
         await rustBackendMock.setPutUnspentTransparentOutputTxidIndexScriptValueHeightClosure() { _, _, _, _, _ in }
-        await rustBackendMock.setCreateToAddressUskToValueMemoReturnValue(-1)
+        await rustBackendMock.setCreateToAddressUskToValueMemoThrowableError(ZcashError.rustCreateToAddress("mocked error"))
-        await rustBackendMock.setCreateToAddressUskToValueMemoReturnValue(-1)
+        await rustBackendMock.setShieldFundsUskMemoShieldingThresholdThrowableError(ZcashError.rustShieldFunds("mocked error"))
         await rustBackendMock.setDecryptAndStoreTransactionTxBytesMinedHeightThrowableError(ZcashError.rustDecryptAndStoreTransaction("mock fail"))
 
         await rustBackendMock.setInitDataDbSeedClosure() { seed in