Handle custom WC pending requests topics

app/build.gradle

@@ -17,8 +17,8 @@ android {
         compileSdk compile_sdk_version
         minSdkVersion min_sdk_version
         targetSdkVersion compile_sdk_version
-        versionCode 91
-        versionName "0.36.0"
+        versionCode 92
+        versionName "0.36.1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
         kapt {

app/src/main/java/io/horizontalsystems/bankwallet/core/App.kt

@@ -101,6 +101,7 @@ import io.horizontalsystems.bankwallet.modules.settings.appearance.LaunchScreenS
 import io.horizontalsystems.bankwallet.modules.theme.ThemeService
 import io.horizontalsystems.bankwallet.modules.theme.ThemeType
 import io.horizontalsystems.bankwallet.modules.walletconnect.storage.WC2SessionStorage
+import io.horizontalsystems.bankwallet.modules.walletconnect.version2.SessionRequestFilterManager
 import io.horizontalsystems.bankwallet.modules.walletconnect.version2.WC2Manager
 import io.horizontalsystems.bankwallet.modules.walletconnect.version2.WC2Service
 import io.horizontalsystems.bankwallet.modules.walletconnect.version2.WC2SessionManager
@@ -398,7 +399,7 @@ class App : CoreApp(), WorkConfiguration.Provider, ImageLoaderFactory {
 
         initializeWalletConnectV2(appConfig)
 
-        wc2Service = WC2Service()
+        wc2Service = WC2Service(SessionRequestFilterManager())
         wc2SessionManager = WC2SessionManager(accountManager, WC2SessionStorage(appDatabase), wc2Service, wc2Manager)
 
         baseTokenManager = BaseTokenManager(coinManager, localStorage)

app/src/main/java/io/horizontalsystems/bankwallet/modules/walletconnect/version2/SessionRequestFilterManager.kt

@@ -0,0 +1,43 @@
+package io.horizontalsystems.bankwallet.modules.walletconnect.version2
+
+import android.util.Log
+import com.walletconnect.sign.client.Sign
+import com.walletconnect.sign.client.SignClient
+
+class SessionRequestFilterManager() {
+    private val TAG = "SessionRequestFilterManager"
+    private val rejectList = setOf(
+        // custom methods
+        "personal_ecRecover",
+        "eth_getCode",
+        "wallet_switchEthereumChain",
+        "wallet_addEthereumChain"
+    )
+
+    private fun reject(request: Sign.Model.SessionRequest) {
+        try {
+            val response = Sign.Params.Response(
+                sessionTopic = request.topic,
+                jsonRpcResponse = Sign.Model.JsonRpcResponse.JsonRpcError(
+                    id = request.request.id,
+                    code = 500,
+                    message = "Rejected by user"
+                )
+            )
+
+            SignClient.respond(response) {
+                Log.e(TAG, "rejectRequest onError: ", it.throwable)
+            }
+        } catch (error: Throwable) {
+            println(error)
+        }
+    }
+
+    fun canHandle(request: Sign.Model.SessionRequest): Boolean {
+        if (rejectList.contains(request.request.method)) {
+            reject(request)
+            return true
+        }
+        return false
+    }
+}

app/src/main/java/io/horizontalsystems/bankwallet/modules/walletconnect/version2/WC2Service.kt

@@ -19,7 +19,9 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import java.util.concurrent.CopyOnWriteArrayList
 
-class WC2Service : SignClient.WalletDelegate {
+class WC2Service(
+    private val sessionRequestFilterManager: SessionRequestFilterManager
+) : SignClient.WalletDelegate {
 
     private val TAG = "WC2Service"
 
@@ -215,6 +217,9 @@ class WC2Service : SignClient.WalletDelegate {
     }
 
     override fun onSessionRequest(sessionRequest: Sign.Model.SessionRequest, verifyContext: Sign.Model.VerifyContext) {
+        if (sessionRequestFilterManager.canHandle(sessionRequest)) {
+            return
+        }
         sessionsRequestReceivedSubject.onNext(sessionRequest)
         pendingRequestUpdatedSubject.onNext(Unit)
     }