Updated on 2026-08-14

data/wallet-connect/build.gradle.kts

@@ -52,6 +52,7 @@ dependencies {
     implementation(deps.arrow.core)
     implementation(projects.domain.blockaid)
     implementation(projects.domain.blockaid.models)
+    implementation(projects.libs.crypto)
 
     /* Tests */
     testImplementation(projects.common.test)

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/di/WalletConnectDataModule.kt

@@ -35,6 +35,7 @@ import com.tangem.domain.walletconnect.usecase.initialize.WcInitializeUseCase
 import com.tangem.domain.walletconnect.usecase.pair.WcPairUseCase
 import com.tangem.domain.walletmanager.WalletManagersFacade
 import com.tangem.domain.wallets.usecase.GetWalletsUseCase
+import com.tangem.lib.crypto.UserWalletManager
 import com.tangem.utils.coroutines.CoroutineDispatcherProvider
 import dagger.Module
 import dagger.Provides
@@ -146,11 +147,13 @@ internal object WalletConnectDataModule {
         excludedBlockchains: ExcludedBlockchains,
         sessionsManager: WcSessionsManager,
         factories: WcSolanaNetwork.Factories,
+        walletManager: UserWalletManager,
     ): WcSolanaNetwork = WcSolanaNetwork(
         moshi = moshi,
         sessionsManager = sessionsManager,
         factories = factories,
         excludedBlockchains = excludedBlockchains,
+        walletManager = walletManager,
     )
 
     @Provides

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/ethereum/BlockAidEthereumVerificationDelegate.kt

@@ -1,50 +0,0 @@
-package com.tangem.data.walletconnect.network.ethereum
-
-import com.domain.blockaid.models.transaction.CheckTransactionResult
-import com.domain.blockaid.models.transaction.TransactionData
-import com.domain.blockaid.models.transaction.TransactionParams
-import com.tangem.domain.blockaid.BlockAidVerifier
-import com.tangem.domain.core.lce.Lce
-import com.tangem.domain.tokens.model.Network
-import com.tangem.domain.walletconnect.model.WcEthMethod
-import com.tangem.domain.walletconnect.model.WcSession
-import com.tangem.domain.walletconnect.model.sdkcopy.WcSdkSessionRequest
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flow
-import timber.log.Timber
-import javax.inject.Inject
-
-internal class BlockAidEthereumVerificationDelegate @Inject constructor(
-    private val blockAidVerifier: BlockAidVerifier,
-) {
-
-    fun getSecurityStatus(
-        network: Network,
-        method: WcEthMethod,
-        rawSdkRequest: WcSdkSessionRequest,
-        session: WcSession,
-    ): Flow<Lce<Throwable, CheckTransactionResult>> = flow {
-        emit(Lce.Loading(partialContent = null))
-        blockAidVerifier.verifyTransaction(
-            TransactionData(
-                chain = network.name,
-                accountAddress = when (method) {
-                    is WcEthMethod.MessageSign -> method.account
-                    is WcEthMethod.SendTransaction -> method.transaction.from
-                    is WcEthMethod.SignTransaction -> method.transaction.from
-                },
-                method = rawSdkRequest.request.method,
-                domainUrl = session.sdkModel.appMetaData.url,
-                params = TransactionParams.Evm(rawSdkRequest.request.params),
-            ),
-        ).fold(
-            ifLeft = {
-                Timber.e("Failed to verify transaction: ${it.localizedMessage}")
-                emit(Lce.Error(it))
-            },
-            ifRight = {
-                emit(Lce.Content(it))
-            },
-        )
-    }
-}

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/ethereum/DefaultWcEthMessageSignUseCase.kt

@@ -7,6 +7,7 @@ import com.tangem.blockchain.common.HEX_PREFIX
 import com.tangem.blockchain.extensions.isAscii
 import com.tangem.common.extensions.hexToBytes
 import com.tangem.common.extensions.toDecompressedPublicKey
+import com.tangem.data.walletconnect.utils.BlockAidVerificationDelegate
 import com.tangem.data.walletconnect.respond.WcRespondService
 import com.tangem.data.walletconnect.sign.BaseWcSignUseCase
 import com.tangem.data.walletconnect.sign.SignCollector
@@ -30,11 +31,17 @@ internal class DefaultWcEthMessageSignUseCase @AssistedInject constructor(
     @Assisted private val method: WcEthMethod.MessageSign,
     private val walletManagersFacade: WalletManagersFacade,
     private val signUseCase: SignUseCase,
-    blockAidDelegate: BlockAidEthereumVerificationDelegate,
+    blockAidDelegate: BlockAidVerificationDelegate,
 ) : BaseWcSignUseCase<Nothing, WcEthMessageSignUseCase.SignModel>(),
     WcEthMessageSignUseCase {
 
-    override val securityStatus = blockAidDelegate.getSecurityStatus(network, method, rawSdkRequest, session)
+    override val securityStatus = blockAidDelegate.getSecurityStatus(
+        network = network,
+        method = method,
+        rawSdkRequest = rawSdkRequest,
+        session = session,
+        accountAddress = context.accountAddress,
+    )
 
     override suspend fun SignCollector<WcEthMessageSignUseCase.SignModel>.onSign(
         state: WcSignState<WcEthMessageSignUseCase.SignModel>,

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/ethereum/DefaultWcEthSendTransactionUseCase.kt

@@ -3,6 +3,7 @@ package com.tangem.data.walletconnect.network.ethereum
 import arrow.core.left
 import com.tangem.blockchain.common.transaction.Fee
 import com.tangem.blockchain.extensions.formatHex
+import com.tangem.data.walletconnect.utils.BlockAidVerificationDelegate
 import com.tangem.data.walletconnect.respond.WcRespondService
 import com.tangem.data.walletconnect.sign.BaseWcSignUseCase
 import com.tangem.data.walletconnect.sign.SignCollector
@@ -25,11 +26,17 @@ internal class DefaultWcEthSendTransactionUseCase @AssistedInject constructor(
     @Assisted private val method: WcEthMethod.SendTransaction,
     override val respondService: WcRespondService,
     private val sendTransaction: SendTransactionUseCase,
-    blockAidDelegate: BlockAidEthereumVerificationDelegate,
+    blockAidDelegate: BlockAidVerificationDelegate,
 ) : BaseWcSignUseCase<Fee, WcEthTransaction>(),
     WcEthSendTransactionUseCase {
 
-    override val securityStatus = blockAidDelegate.getSecurityStatus(network, method, rawSdkRequest, session)
+    override val securityStatus = blockAidDelegate.getSecurityStatus(
+        network = network,
+        method = method,
+        rawSdkRequest = rawSdkRequest,
+        session = session,
+        accountAddress = context.accountAddress,
+    )
 
     private val converter = EthTransactionParamsConverter(context)
 

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/ethereum/DefaultWcEthSignTransactionUseCase.kt

@@ -4,6 +4,7 @@ import arrow.core.left
 import com.tangem.blockchain.common.transaction.Fee
 import com.tangem.blockchain.extensions.formatHex
 import com.tangem.common.extensions.toHexString
+import com.tangem.data.walletconnect.utils.BlockAidVerificationDelegate
 import com.tangem.data.walletconnect.respond.WcRespondService
 import com.tangem.data.walletconnect.sign.BaseWcSignUseCase
 import com.tangem.data.walletconnect.sign.SignCollector
@@ -27,11 +28,17 @@ internal class DefaultWcEthSignTransactionUseCase @AssistedInject constructor(
     private val prepareForSend: PrepareForSendUseCase,
     @Assisted override val context: WcMethodUseCaseContext,
     @Assisted private val method: WcEthMethod.SignTransaction,
-    blockAidDelegate: BlockAidEthereumVerificationDelegate,
+    blockAidDelegate: BlockAidVerificationDelegate,
 ) : BaseWcSignUseCase<Fee, WcEthTransaction>(),
     WcEthSignTransactionUseCase {
 
-    override val securityStatus = blockAidDelegate.getSecurityStatus(network, method, rawSdkRequest, session)
+    override val securityStatus = blockAidDelegate.getSecurityStatus(
+        network = network,
+        method = method,
+        rawSdkRequest = rawSdkRequest,
+        session = session,
+        accountAddress = context.accountAddress,
+    )
 
     private val converter = EthTransactionParamsConverter(context)
 

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/ethereum/WcEthNetwork.kt

@@ -39,7 +39,17 @@ internal class WcEthNetwork(
         val method: WcEthMethod = name.toMethod(request) ?: return null
         val session = sessionsManager.findSessionByTopic(request.topic) ?: return null
         val network = toNetwork(request.chainId.orEmpty(), session.wallet) ?: return null
-        val context = WcMethodUseCaseContext(session = session, rawSdkRequest = request, network = network)
+        val accountAddress = when (method) {
+            is WcEthMethod.MessageSign -> method.account
+            is WcEthMethod.SendTransaction -> method.transaction.from
+            is WcEthMethod.SignTransaction -> method.transaction.from
+        }
+        val context = WcMethodUseCaseContext(
+            session = session,
+            rawSdkRequest = request,
+            network = network,
+            accountAddress = accountAddress,
+        )
         return when (method) {
             is WcEthMethod.MessageSign -> factories.messageSign.create(context, method)
             is WcEthMethod.SendTransaction -> factories.sendTransaction.create(context, method)

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/solana/DefaultWcSolanaSignAllTransactionUseCase.kt

@@ -8,6 +8,7 @@ import com.tangem.data.walletconnect.sign.BaseWcSignUseCase
 import com.tangem.data.walletconnect.sign.SignCollector
 import com.tangem.data.walletconnect.sign.SignStateConverter.toResult
 import com.tangem.data.walletconnect.sign.WcMethodUseCaseContext
+import com.tangem.data.walletconnect.utils.BlockAidVerificationDelegate
 import com.tangem.domain.transaction.usecase.PrepareForSendUseCase
 import com.tangem.domain.walletconnect.model.WcSolanaMethod
 import com.tangem.domain.walletconnect.usecase.sign.WcSignState
@@ -25,9 +26,18 @@ internal class DefaultWcSolanaSignAllTransactionUseCase @AssistedInject construc
     private val prepareForSend: PrepareForSendUseCase,
     @Assisted override val context: WcMethodUseCaseContext,
     @Assisted private val method: WcSolanaMethod.SignAllTransaction,
+    blockAidDelegate: BlockAidVerificationDelegate,
 ) : BaseWcSignUseCase<Nothing, List<TransactionData.Compiled>>(),
     WcSolanaSignAllTransactionUseCase {
 
+    override val securityStatus = blockAidDelegate.getSecurityStatus(
+        network = network,
+        method = method,
+        rawSdkRequest = rawSdkRequest,
+        session = session,
+        accountAddress = context.accountAddress,
+    )
+
     override suspend fun SignCollector<List<TransactionData.Compiled>>.onSign(
         state: WcSignState<List<TransactionData.Compiled>>,
     ) {

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/solana/DefaultWcSolanaSignTransactionUseCase.kt

@@ -8,6 +8,7 @@ import com.tangem.data.walletconnect.sign.BaseWcSignUseCase
 import com.tangem.data.walletconnect.sign.SignCollector
 import com.tangem.data.walletconnect.sign.SignStateConverter.toResult
 import com.tangem.data.walletconnect.sign.WcMethodUseCaseContext
+import com.tangem.data.walletconnect.utils.BlockAidVerificationDelegate
 import com.tangem.domain.transaction.usecase.PrepareForSendUseCase
 import com.tangem.domain.walletconnect.model.WcSolanaMethod
 import com.tangem.domain.walletconnect.usecase.sign.WcSignState
@@ -23,9 +24,18 @@ internal class DefaultWcSolanaSignTransactionUseCase @AssistedInject constructor
     private val prepareForSend: PrepareForSendUseCase,
     @Assisted override val context: WcMethodUseCaseContext,
     @Assisted private val method: WcSolanaMethod.SignTransaction,
+    blockAidDelegate: BlockAidVerificationDelegate,
 ) : BaseWcSignUseCase<Nothing, TransactionData.Compiled>(),
     WcSolanaSignTransactionUseCase {
 
+    override val securityStatus = blockAidDelegate.getSecurityStatus(
+        network = network,
+        method = method,
+        rawSdkRequest = rawSdkRequest,
+        session = session,
+        accountAddress = context.accountAddress,
+    )
+
     override suspend fun SignCollector<TransactionData.Compiled>.onSign(state: WcSignState<TransactionData.Compiled>) {
         val hash = prepareForSend.invoke(transactionData = state.signModel, userWallet = wallet, network = network)
             .onLeft { error ->

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/network/solana/WcSolanaNetwork.kt

@@ -16,13 +16,16 @@ import com.tangem.domain.walletconnect.model.sdkcopy.WcSdkSessionRequest
 import com.tangem.domain.walletconnect.repository.WcSessionsManager
 import com.tangem.domain.walletconnect.usecase.WcMethodUseCase
 import com.tangem.domain.wallets.models.UserWallet
+import com.tangem.lib.crypto.UserWalletManager
 import jakarta.inject.Inject
+import timber.log.Timber
 
-internal class WcSolanaNetwork constructor(
+internal class WcSolanaNetwork(
     private val moshi: Moshi,
     private val sessionsManager: WcSessionsManager,
     private val factories: Factories,
     private val excludedBlockchains: ExcludedBlockchains,
+    private val walletManager: UserWalletManager,
 ) : WcNamespaceConverter, WcRequestToUseCaseConverter {
 
     override val namespaceKey: NamespaceKey = NamespaceKey("solana")
@@ -38,7 +41,13 @@ internal class WcSolanaNetwork constructor(
         val method: WcSolanaMethod = name.toMethod(request) ?: return null
         val session = sessionsManager.findSessionByTopic(request.topic) ?: return null
         val network = toNetwork(request.chainId.orEmpty(), session.wallet) ?: return null
-        val context = WcMethodUseCaseContext(session = session, rawSdkRequest = request, network = network)
+        val accountAddress = getAccountAddress(network)
+        val context = WcMethodUseCaseContext(
+            session = session,
+            rawSdkRequest = request,
+            network = network,
+            accountAddress = accountAddress,
+        )
         return when (method) {
             is WcSolanaMethod.SignMessage -> TODO()
             is WcSolanaMethod.SignTransaction -> factories.signTransaction.create(context, method)
@@ -46,6 +55,15 @@ internal class WcSolanaNetwork constructor(
         }
     }
 
+    private suspend fun getAccountAddress(network: Network): String? {
+        return try {
+            walletManager.getWalletAddress(network.id.value, network.derivationPath.value)
+        } catch (exception: Exception) {
+            Timber.e(exception)
+            null
+        }
+    }
+
     override fun toBlockchain(chainId: CAIP2): Blockchain? {
         if (chainId.namespace != namespaceKey.key) return null
         return when (chainId.reference) {

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/sign/BaseWcSignUseCase.kt

@@ -60,6 +60,7 @@ internal class WcMethodUseCaseContext(
     val session: WcSession,
     val rawSdkRequest: WcSdkSessionRequest,
     val network: Network,
+    val accountAddress: String?,
 )
 
 internal typealias SignCollector<SignModel> = FlowCollector<WcSignState<SignModel>>

data/wallet-connect/src/main/kotlin/com/tangem/data/walletconnect/utils/BlockAidVerificationDelegate.kt

@@ -0,0 +1,67 @@
+package com.tangem.data.walletconnect.utils
+
+import com.domain.blockaid.models.transaction.*
+import com.tangem.domain.blockaid.BlockAidVerifier
+import com.tangem.domain.core.lce.Lce
+import com.tangem.domain.core.lce.LceFlow
+import com.tangem.domain.tokens.model.Network
+import com.tangem.domain.walletconnect.model.WcEthMethod
+import com.tangem.domain.walletconnect.model.WcMethod
+import com.tangem.domain.walletconnect.model.WcSession
+import com.tangem.domain.walletconnect.model.WcSolanaMethod
+import com.tangem.domain.walletconnect.model.sdkcopy.WcSdkSessionRequest
+import kotlinx.coroutines.flow.flow
+import timber.log.Timber
+import javax.inject.Inject
+
+internal class BlockAidVerificationDelegate @Inject constructor(
+    private val blockAidVerifier: BlockAidVerifier,
+) {
+
+    fun getSecurityStatus(
+        network: Network,
+        method: WcMethod,
+        rawSdkRequest: WcSdkSessionRequest,
+        session: WcSession,
+        accountAddress: String?,
+    ): LceFlow<Throwable, CheckTransactionResult> = flow {
+        emit(Lce.Loading(partialContent = null))
+        val failedResult = CheckTransactionResult(
+            validation = ValidationResult.FAILED_TO_VALIDATE,
+            simulation = SimulationResult.FailedToSimulate,
+        )
+        if (accountAddress.isNullOrEmpty()) {
+            emit(Lce.Content(failedResult))
+            return@flow
+        }
+        when (method) {
+            is WcEthMethod -> TransactionParams.Evm(rawSdkRequest.request.params)
+            is WcSolanaMethod.SignAllTransaction -> TransactionParams.Solana(method.transaction)
+            is WcSolanaMethod.SignTransaction -> TransactionParams.Solana(listOf(method.transaction))
+            is WcSolanaMethod.SignMessage -> {
+                // BlockAid doesn't support solana_signMessage
+                emit(Lce.Content(failedResult))
+                return@flow
+            }
+            else -> null
+        }?.let { params ->
+            blockAidVerifier.verifyTransaction(
+                TransactionData(
+                    chain = network.name,
+                    accountAddress = accountAddress,
+                    method = rawSdkRequest.request.method,
+                    domainUrl = session.sdkModel.appMetaData.url,
+                    params = params,
+                ),
+            ).fold(
+                ifLeft = {
+                    Timber.e("Failed to verify transaction: ${it.localizedMessage}")
+                    emit(Lce.Error(it))
+                },
+                ifRight = {
+                    emit(Lce.Content(it))
+                },
+            )
+        } ?: emit(Lce.Content(failedResult))
+    }
+}