gRPC-web proxy (#8077)

* init * WIP config * WIP add proxy server * fmt * WIP * setup proxy server * clean go.mod * lint * lint * lint * custom codec * lint * add comments * change grpc-proxy port * add grpc-web * update server/start.go * add tests * add test with client * Update server/start.go Co-authored-by: Anil Kumar Kammari <anil@vitwit.com> * Update server/start.go Co-authored-by: Amaury <amaury.martiny@protonmail.com> * Update server/start.go Co-authored-by: Amaury <amaury.martiny@protonmail.com> * review changes * review changes * Update server/start.go Co-authored-by: Anil Kumar Kammari <anil@vitwit.com> Co-authored-by: Amaury <amaury.martiny@protonmail.com> Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2021-01-18 18:25:22 +00:00
parent 01eec66d28
commit b771effc6c
9 changed files with 438 additions and 7 deletions
@@ -7,6 +7,7 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
+	"net/http"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -157,9 +158,10 @@ type (
 		ValAddress sdk.ValAddress
 		RPCClient  tmclient.Client

-		tmNode *node.Node
-		api    *api.Server
-		grpc   *grpc.Server
+		tmNode  *node.Node
+		api     *api.Server
+		grpc    *grpc.Server
+		grpcWeb *http.Server
 	}
 )

@@ -212,6 +214,7 @@ func New(t *testing.T, cfg Config) *Network {
 		apiAddr := ""
 		tmCfg.RPC.ListenAddress = ""
 		appCfg.GRPC.Enable = false
+		appCfg.GRPCWeb.Enable = false
 		if i == 0 {
 			apiListenAddr, _, err := server.FreeTCPAddr()
 			require.NoError(t, err)
@@ -229,6 +232,11 @@ func New(t *testing.T, cfg Config) *Network {
 			require.NoError(t, err)
 			appCfg.GRPC.Address = fmt.Sprintf("0.0.0.0:%s", grpcPort)
 			appCfg.GRPC.Enable = true
+
+			_, grpcWebPort, err := server.FreeTCPAddr()
+			require.NoError(t, err)
+			appCfg.GRPCWeb.Address = fmt.Sprintf("0.0.0.0:%s", grpcWebPort)
+			appCfg.GRPCWeb.Enable = true
 		}

 		logger := log.NewNopLogger()
@@ -466,6 +474,9 @@ func (n *Network) Cleanup() {

 		if v.grpc != nil {
 			v.grpc.Stop()
+			if v.grpcWeb != nil {
+				_ = v.grpcWeb.Close()
+			}
 		}
 	}

@@ -99,6 +99,24 @@ func startInProcess(cfg Config, val *Validator) error {
 		}

 		val.grpc = grpcSrv
+
+		if val.AppConfig.GRPCWeb.Enable {
+			errCh1 := make(chan error)
+			go func() {
+				grpcWeb, err := servergrpc.StartGRPCWeb(grpcSrv, *val.AppConfig)
+				if err != nil {
+					errCh1 <- err
+				}
+
+				val.grpcWeb = grpcWeb
+			}()
+			select {
+			case err := <-errCh1:
+				return err
+			case <-time.After(5 * time.Second): // assume server started successfully
+			}
+
+		}
 	}

 	return nil