feat(dapp-browser-backend)_: async calls

feat(dapp-browser-eip1193)_: handle chainId changed signals

fixes #19113

Author: friofry

src/app/core/signals/remote_signals/connector.nim

@@ -38,6 +38,10 @@ type ConnectorSignSignal* = ref object of Signal
   address*: string
   signMethod*: string
 
+type ConnectorDAppChainIdSwitchedSignal* = ref object of Signal
+  url*: string
+  chainId*: string
+
 proc fromEvent*(T: type ConnectorSendRequestAccountsSignal, event: JsonNode): ConnectorSendRequestAccountsSignal =
   result = ConnectorSendRequestAccountsSignal()
   result.signalType = SignalType.ConnectorSendRequestAccounts
@@ -81,4 +85,10 @@ proc fromEvent*(T: type ConnectorSignSignal, event: JsonNode): ConnectorSignSign
   result.requestId = event["event"]{"requestId"}.getStr()
   result.challenge = event["event"]{"challenge"}.getStr()
   result.address = event["event"]{"address"}.getStr()
-  result.signMethod = event["event"]{"method"}.getStr()
+  result.signMethod = event["event"]{"method"}.getStr()
+
+proc fromEvent*(T: type ConnectorDAppChainIdSwitchedSignal, event: JsonNode): ConnectorDAppChainIdSwitchedSignal =
+  result = ConnectorDAppChainIdSwitchedSignal()
+  result.signalType = SignalType.ConnectorDAppChainIdSwitched
+  result.url = event["event"]{"url"}.getStr()
+  result.chainId = event["event"]{"chainId"}.getStr()

src/app/core/signals/remote_signals/signal_type.nim

@@ -74,6 +74,7 @@ type SignalType* {.pure.} = enum
   ConnectorGrantDAppPermission = "connector.dAppPermissionGranted"
   ConnectorRevokeDAppPermission = "connector.dAppPermissionRevoked"
   ConnectorSign = "connector.Sign"
+  ConnectorDAppChainIdSwitched = "connector.dAppChainIdSwitched"
   LocalMessageBackupDone = "local.message.backup.done"
   Unknown
 

src/app/core/signals/signals_manager.nim

@@ -142,6 +142,7 @@ QtObject:
       of SignalType.ConnectorGrantDAppPermission: ConnectorGrantDAppPermissionSignal.fromEvent(jsonSignal)
       of SignalType.ConnectorRevokeDAppPermission: ConnectorRevokeDAppPermissionSignal.fromEvent(jsonSignal)
       of SignalType.ConnectorSign: ConnectorSignSignal.fromEvent(jsonSignal)
+      of SignalType.ConnectorDAppChainIdSwitched: ConnectorDAppChainIdSwitchedSignal.fromEvent(jsonSignal)
       # networks
       of SignalType.NetworksBlockchainHealthChanged: NetworksBlockchainHealthChangedSignal.fromEvent(jsonSignal)
       else:

src/app/modules/main/wallet_section/module.nim

@@ -179,7 +179,7 @@ proc newModule*(
   result.walletConnectService = wc_service.newService(result.events, result.threadpool, settingsService, transactionService, keycardService)
   result.walletConnectController = wc_controller.newController(result.walletConnectService, walletAccountService, result.events)
 
-  result.dappsConnectorService = connector_service.newService(result.events)
+  result.dappsConnectorService = connector_service.newService(result.events, result.threadpool)
   result.dappsConnectorController = connector_controller.newController(result.dappsConnectorService, result.events)
   result.view = newView(result, result.activityController, result.tmpActivityControllers, result.collectibleDetailsController, result.walletConnectController, result.dappsConnectorController)
   result.viewVariant = newQVariant(result.view)

src/app/modules/shared_modules/connector/controller.nim

@@ -12,6 +12,8 @@ const SIGNAL_CONNECTOR_EVENT_CONNECTOR_SEND_TRANSACTION* = "ConnectorSendTransac
 const SIGNAL_CONNECTOR_GRANT_DAPP_PERMISSION* = "ConnectorGrantDAppPermission"
 const SIGNAL_CONNECTOR_REVOKE_DAPP_PERMISSION* = "ConnectorRevokeDAppPermission"
 const SIGNAL_CONNECTOR_SIGN* = "ConnectorSign"
+const SIGNAL_CONNECTOR_CALL_RPC_RESULT* = "ConnectorCallRPCResult"
+const SIGNAL_CONNECTOR_DAPP_CHAIN_ID_SWITCHED* = "ConnectorDAppChainIdSwitched"
 
 logScope:
   topics = "connector-controller"
@@ -28,6 +30,8 @@ QtObject:
   proc emitDisconnected*(self: Controller, payload: string)
   proc emitSendTransaction*(self: Controller, requestId: string, payload: string)
   proc emitSign*(self: Controller, requestId: string, payload: string)
+  proc emitConnectorCallRPCResult*(self: Controller, requestId: int, payload: string)
+  proc emitChainIdSwitched*(self: Controller, payload: string)
 
   proc newController*(service: connector_service.Service, events: EventEmitter): Controller =
     new(result, delete)
@@ -98,6 +102,18 @@ QtObject:
 
       controller.emitSign(params.requestId, dappInfo.toJson())
 
+    result.events.on(SIGNAL_CONNECTOR_CALL_RPC_RESULT) do(e: Args):
+      let params = connector_service.ConnectorCallRPCResultArgs(e)
+      controller.emitConnectorCallRPCResult(params.requestId, params.payload)
+
+    result.events.on(SIGNAL_CONNECTOR_DAPP_CHAIN_ID_SWITCHED) do(e: Args):
+      let params = ConnectorDAppChainIdSwitchedSignal(e)
+      let chainInfo = %*{
+        "url": params.url,
+        "chainId": params.chainId
+      }
+      controller.emitChainIdSwitched(chainInfo.toJson())
+
     result.QObject.setup
 
   proc connectRequested*(self: Controller, requestId: string, payload: string) {.signal.}
@@ -108,6 +124,8 @@ QtObject:
   proc sign(self: Controller, requestId: string, payload: string) {.signal.}
   proc approveConnectResponse*(self: Controller, payload: string, error: bool) {.signal.}
   proc rejectConnectResponse*(self: Controller, payload: string, error: bool) {.signal.}
+  proc connectorCallRPCResult*(self: Controller, requestId: int, payload: string) {.signal.}
+  proc chainIdSwitched*(self: Controller, payload: string) {.signal.}
 
   proc approveTransactionResponse*(self: Controller, topic: string, requestId: string, error: bool) {.signal.}
   proc rejectTransactionResponse*(self: Controller, topic: string, requestId: string, error: bool) {.signal.}
@@ -124,6 +142,10 @@ QtObject:
     self.sendTransaction(requestId, payload)
   proc emitSign*(self: Controller, requestId: string, payload: string) =
     self.sign(requestId, payload)
+  proc emitConnectorCallRPCResult*(self: Controller, requestId: int, payload: string) =
+    self.connectorCallRPCResult(requestId, payload)
+  proc emitChainIdSwitched*(self: Controller, payload: string) =
+    self.chainIdSwitched(payload)
 
   proc parseSingleUInt(chainIDsString: string): uint =
     try:
@@ -175,3 +197,5 @@ QtObject:
   proc delete*(self: Controller) =
     self.QObject.delete
 
+  proc connectorCallRPC*(self: Controller, requestId: int, message: string) {.slot.} =
+    self.service.connectorCallRPC(requestId, message)

src/app_service/service/connector/async_tasks.nim

@@ -0,0 +1,30 @@
+import json, json_serialization, chronicles
+import backend/connector as status_go
+import app/core/tasks/qt
+
+logScope:
+  topics = "connector-async-tasks"
+
+type
+  ConnectorCallRPCTaskArg* = ref object of QObjectTaskArg
+    requestId*: int
+    message*: string
+
+proc connectorCallRPCTask*(argEncoded: string) {.gcsafe, nimcall.} =
+  let arg = decode[ConnectorCallRPCTaskArg](argEncoded)
+  try:
+    let rpcResponse = status_go.connectorCallRPC(arg.message)
+    let responseJson = %* {
+      "requestId": arg.requestId,
+      "result": $rpcResponse.result,
+      "error": if rpcResponse.error.isNil: "" else: rpcResponse.error.message
+    }
+    
+    arg.finish(responseJson)
+  except Exception as e:
+    error "connectorCallRPCTask failed", error=e.msg
+    arg.finish(%* {
+      "requestId": arg.requestId,
+      "error": e.msg
+    })
+

src/app_service/service/connector/service.nim

@@ -6,22 +6,31 @@ import app/global/global_singleton
 
 import app/core/eventemitter
 import app/core/signals/types
+import app/core/tasks/[qt, threadpool]
 
 import strutils
 
 logScope:
   topics = "connector-service"
 
+include ./async_tasks
+
 const SIGNAL_CONNECTOR_SEND_REQUEST_ACCOUNTS* = "ConnectorSendRequestAccounts"
 const SIGNAL_CONNECTOR_EVENT_CONNECTOR_SEND_TRANSACTION* = "ConnectorSendTransaction"
 const SIGNAL_CONNECTOR_GRANT_DAPP_PERMISSION* = "ConnectorGrantDAppPermission"
 const SIGNAL_CONNECTOR_REVOKE_DAPP_PERMISSION* = "ConnectorRevokeDAppPermission"
 const SIGNAL_CONNECTOR_EVENT_CONNECTOR_SIGN* = "ConnectorSign"
+const SIGNAL_CONNECTOR_CALL_RPC_RESULT* = "ConnectorCallRPCResult"
+const SIGNAL_CONNECTOR_DAPP_CHAIN_ID_SWITCHED* = "ConnectorDAppChainIdSwitched"
 
 # Enum with events
 type Event* = enum
   DappConnect
 
+type ConnectorCallRPCResultArgs* = ref object of Args
+  requestId*: int
+  payload*: string
+
 # Event handler function
 type EventHandlerFn* = proc(event: Event, payload: string)
 
@@ -31,15 +40,18 @@ QtObject:
   type Service* = ref object of QObject
     events: EventEmitter
     eventHandler: EventHandlerFn
+    threadpool: ThreadPool
 
   proc delete*(self: Service)
   proc newService*(
-    events: EventEmitter
+    events: EventEmitter,
+    threadpool: ThreadPool
   ): Service =
     new(result, delete)
     result.QObject.setup
 
     result.events = events
+    result.threadpool = threadpool
 
   proc init*(self: Service) =
     self.events.on(SignalType.ConnectorSendRequestAccounts.event, proc(e: Args) =
@@ -94,6 +106,13 @@ QtObject:
 
       self.events.emit(SIGNAL_CONNECTOR_EVENT_CONNECTOR_SIGN, data)
     )
+    self.events.on(SignalType.ConnectorDAppChainIdSwitched.event, proc(e: Args) =
+      if self.eventHandler == nil:
+        return
+
+      var data = ConnectorDAppChainIdSwitchedSignal(e)
+      self.events.emit(SIGNAL_CONNECTOR_DAPP_CHAIN_ID_SWITCHED, data)
+    )
 
   proc registerEventsHandler*(self: Service, handler: EventHandlerFn) =
     self.eventHandler = handler
@@ -105,7 +124,7 @@ QtObject:
       args.requestId = requestId
       args.account = account
       args.chainId = chainId
-
+      
       return status_go.requestAccountsAcceptedFinishedRpc(args)
 
     except Exception as e:
@@ -178,6 +197,32 @@ QtObject:
   proc rejectSigning*(self: Service, requestId: string): bool =
     rejectRequest(self, requestId, status_go.sendSignRejectedFinishedRpc, "sendSignRejectedFinishedRpc failed: ")
 
+  proc onConnectorCallRPCResolved*(self: Service, response: string) {.slot.} =
+    try:
+      let responseObj = response.parseJson
+      let requestId = responseObj{"requestId"}.getInt(0)
+      
+      var data = ConnectorCallRPCResultArgs()
+      data.requestId = requestId
+      data.payload = response
+      
+      self.events.emit(SIGNAL_CONNECTOR_CALL_RPC_RESULT, data)
+    except Exception as e:
+      error "onConnectorCallRPCResolved failed", error=e.msg
+
+  proc connectorCallRPC*(self: Service, requestId: int, message: string) =
+    try:
+      let arg = ConnectorCallRPCTaskArg(
+        tptr: connectorCallRPCTask,
+        vptr: cast[uint](self.vptr),
+        slot: "onConnectorCallRPCResolved",
+        requestId: requestId,
+        message: message
+      )
+      self.threadpool.start(arg)
+    except:
+      error "connectorCallRPC: starting async background task failed", requestId=requestId
+
   proc delete*(self: Service) =
     self.QObject.delete
 

src/app_service/service/wallet_connect/async_tasks.nim

@@ -77,9 +77,10 @@ proc asyncEstimateGasTask(argsEncoded: string) {.gcsafe, nimcall.} =
         let tx = parseJson(arg.txJson)
         let transaction = %*{
             "from": tx["from"].getStr,
-            "to": tx["to"].getStr,
-            "data": tx["data"].getStr
+            "to": tx["to"].getStr
         }
+        if tx.hasKey("data"):
+            transaction["data"] = tx["data"]
         if tx.hasKey("value"):
             transaction["value"] = tx["value"]
 

src/backend/connector.nim

@@ -1,9 +1,13 @@
 import options
 import json, json_serialization
 import core, response_type
+import chronicles
 
 from gen import rpc
 
+logScope:
+  topics = "connector-backend"
+
 const
   EventConnectorSendRequestAccounts* = "connector.sendRequestAccounts"
   EventConnectorSendTransaction* = "connector.sendTransaction"
@@ -51,6 +55,9 @@ rpc(signAccepted, "connector"):
 rpc(signRejected, "connector"):
   args: RejectedArgs
 
+rpc(callRPC, "connector"):
+  inputJSON: string
+
 proc isSuccessResponse(rpcResponse: RpcResponse[JsonNode]): bool =
   return rpcResponse.error.isNil
 
@@ -73,4 +80,7 @@ proc sendSignAcceptedFinishedRpc*(args: SignAcceptedArgs): bool =
   return isSuccessResponse(signAccepted(args))
 
 proc sendSignRejectedFinishedRpc*(args: RejectedArgs): bool =
-  return isSuccessResponse(signRejected(args))
+  return isSuccessResponse(signRejected(args))
+
+proc connectorCallRPC*(inputJSON: string): RpcResponse[JsonNode] {.raises: [Exception].} =
+  return callRPC(inputJSON)