From 866382c4187cc63acaf31ea4cf375b2ce29108a9 Mon Sep 17 00:00:00 2001
From: Matt Curtis <matt@obscu.ro>
Date: Fri, 24 May 2024 12:19:11 +0100
Subject: [PATCH] Gateway: hardcode response to clientVersion request

---
 .../networktest/tests/gateway/gateway_test.go | 11 ++++++++++
 tools/walletextension/rpcapi/web3_api.go      | 20 +++++++++++++++++++
 .../walletextension_container.go              |  3 +++
 3 files changed, 34 insertions(+)
 create mode 100644 tools/walletextension/rpcapi/web3_api.go

diff --git a/integration/networktest/tests/gateway/gateway_test.go b/integration/networktest/tests/gateway/gateway_test.go
index 6a2bc1985d..f919db84d9 100644
--- a/integration/networktest/tests/gateway/gateway_test.go
+++ b/integration/networktest/tests/gateway/gateway_test.go
@@ -66,6 +66,17 @@ func TestGatewayHappyPath(t *testing.T) {
 					return fmt.Errorf("expected net_version to be %s but got %s", expectedResult, result)
 				}
 
+				// check web3_clientVersion response
+				var cvResult string
+				err = rpcClient.CallContext(ctx, &cvResult, "web3_clientVersion")
+				if err != nil {
+					return fmt.Errorf("failed to get web3_clientVersion: %w", err)
+				}
+				fmt.Println("web3_clientVersion response:", cvResult)
+				if cvResult == "" {
+					return fmt.Errorf("expected web3_clientVersion to be non-empty")
+				}
+
 				return nil
 			}),
 		),
diff --git a/tools/walletextension/rpcapi/web3_api.go b/tools/walletextension/rpcapi/web3_api.go
new file mode 100644
index 0000000000..4794e6fd0e
--- /dev/null
+++ b/tools/walletextension/rpcapi/web3_api.go
@@ -0,0 +1,20 @@
+package rpcapi
+
+import (
+	"context"
+)
+
+var _hardcodedClientVersion = "Geth/v10.0.0/drpc"
+
+type Web3API struct {
+	we *Services
+}
+
+func NewWeb3API(we *Services) *Web3API {
+	return &Web3API{we}
+}
+
+func (api *Web3API) ClientVersion(_ context.Context) (*string, error) {
+	// todo: have this return the Ten version from the node
+	return &_hardcodedClientVersion, nil
+}
diff --git a/tools/walletextension/walletextension_container.go b/tools/walletextension/walletextension_container.go
index 96e322b08c..f5bf5d36f7 100644
--- a/tools/walletextension/walletextension_container.go
+++ b/tools/walletextension/walletextension_container.go
@@ -86,6 +86,9 @@ func NewContainerFromConfig(config wecommon.Config, logger gethlog.Logger) *Cont
 		}, {
 			Namespace: "net",
 			Service:   rpcapi.NewNetAPI(walletExt),
+		}, {
+			Namespace: "web3",
+			Service:   rpcapi.NewWeb3API(walletExt),
 		},
 	})