MaxMessageSize added

config.yaml.sample

@@ -7,4 +7,7 @@ certDir: cert
 certFile: server.crt
 certKey: server.key
 vereignCertFile: vereign_ca.cer
-vereignCertKey: vereign_ca.key
\ No newline at end of file
+vereignCertKey: vereign_ca.key
+
+# Maximum Message Size (in megabytes)
+maxMessageSize: 32
\ No newline at end of file

handler/generate_keypair.go

@@ -39,7 +39,7 @@ func (s *KeyStorageServerImpl) GenerateKeyPair(ctx context.Context,
 	auth := s.CreateAuthentication(ctx)
 
 	client := &client.DataStorageClientImpl{}
-	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath)
+	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath, s.MaxMessageSize)
 	defer client.CloseClient()
 
 	generateKeyPairResponse := &api.GenerateKeyPairResponse{}

handler/handler.go

@@ -38,6 +38,7 @@ type KeyStorageServerImpl struct {
 	CertFilePath              string
 	VereignCertFilePath       string
 	VereignPrivateKeyFilePath string
+	MaxMessageSize			  int
 }
 
 func (s *KeyStorageServerImpl) CreateAuthentication(ctx context.Context) *authentication.Authentication {
@@ -60,7 +61,7 @@ func (s *KeyStorageServerImpl) GetKey(ctx context.Context, in *api.GetKeyRequest
 	auth := s.CreateAuthentication(ctx)
 
 	client := &client.DataStorageClientImpl{}
-	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath)
+	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath, s.MaxMessageSize)
 	defer client.CloseClient()
 
 	getKeyResponse := &api.GetKeyResponse{}
@@ -107,7 +108,7 @@ func (s *KeyStorageServerImpl) SetKey(ctx context.Context, in *api.SetKeyRequest
 	auth := s.CreateAuthentication(ctx)
 
 	client := &client.DataStorageClientImpl{}
-	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath)
+	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath, s.MaxMessageSize)
 	defer client.CloseClient()
 
 	setKeyResponse := &api.SetKeyResponse{}
@@ -155,7 +156,7 @@ func (s *KeyStorageServerImpl) ReserveKeyUUID(ctx context.Context, in *api.Reser
 	auth := s.CreateAuthentication(ctx)
 
 	client := &client.DataStorageClientImpl{}
-	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath)
+	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath, s.MaxMessageSize)
 	defer client.CloseClient()
 
 	reserveKeyUUIDResponse := &api.ReserveKeyUUIDResponse{}

handler/revoke.go

@@ -29,7 +29,7 @@ func (s *KeyStorageServerImpl) Revoke(ctx context.Context, in *api.RevokeRequest
 	auth := s.CreateAuthentication(ctx)
 
 	client := &client.DataStorageClientImpl{}
-	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath)
+	client.SetUpClient(auth, s.DataStorageUrl, s.CertFilePath, s.MaxMessageSize)
 	defer client.CloseClient()
 
 	revokeResponse := &api.RevokeResponse{}

main.go

@@ -44,10 +44,12 @@ func main() {
 	vereignCertFilePath := certDir + "/" + viper.GetString("vereignCertFile")
 	vereignPrivateKeyFilePath := certDir + "/" + viper.GetString("vereignCertKey")
 
+	maxMessageSize := viper.GetInt("maxMessageSize")
+
 	// fire the gRPC server in a goroutine
 	go func() {
 		err := server.StartGRPCServer(grpcAddress, certFilePath, privateKeyFilePath, vereignCertFilePath,
-			vereignPrivateKeyFilePath, dataStorageAddress)
+			vereignPrivateKeyFilePath, dataStorageAddress, maxMessageSize)
 		if err != nil {
 			log.Fatalf("failed to start gRPC server: %s", err)
 		}

server/configs.go

@@ -20,6 +20,8 @@ func SetConfigValues() {
 	viper.SetDefault("vereignCertFile", "vereign_ca.cer")
 	viper.SetDefault("vereignCertKey", "vereign_ca.key")
 
+	viper.SetDefault("maxMessageSize", "32")
+
 	// Read Config File
 	viper.SetConfigName("config")
 	viper.AddConfigPath(".")

server/server.go

@@ -70,7 +70,7 @@ func authenticateClient(ctx context.Context, s *handler.KeyStorageServerImpl, in
 		}
 
 		sessionClient := &client.DataStorageClientImpl{}
-		sessionClient.SetUpClient(viamAuth, viper.GetString("dataStorageClientUrl"), pkgCertFile)
+		sessionClient.SetUpClient(viamAuth, viper.GetString("dataStorageClientUrl"), pkgCertFile, viper.GetInt("maxMessageSize"))
 		defer sessionClient.CloseClient()
 
 		if clientAuth.Uuid == viamAuth.Uuid {
@@ -107,7 +107,7 @@ func unaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServ
 	return handler1(ctx, req)
 }
 
-func StartGRPCServer(address, certFilePath, privateKeyFilePath, vereignCertFilePath, vereignPrivateKeyFilePath, dataStorageAddress string) error {
+func StartGRPCServer(address, certFilePath, privateKeyFilePath, vereignCertFilePath, vereignPrivateKeyFilePath, dataStorageAddress string, maxMessageSize int) error {
 	pkgCertFile = certFilePath
 
 	// create a listener on TCP port
@@ -122,6 +122,7 @@ func StartGRPCServer(address, certFilePath, privateKeyFilePath, vereignCertFileP
 		CertFilePath:              certFilePath,
 		VereignCertFilePath:       vereignCertFilePath,
 		VereignPrivateKeyFilePath: vereignPrivateKeyFilePath,
+		MaxMessageSize:			   maxMessageSize,
 	}
 
 	// Create the TLS credentials
@@ -131,8 +132,11 @@ func StartGRPCServer(address, certFilePath, privateKeyFilePath, vereignCertFileP
 	}
 
 	// Create an array of gRPC options with the credentials
-	opts := []grpc.ServerOption{grpc.Creds(creds),
-		grpc.UnaryInterceptor(unaryInterceptor)}
+	opts := []grpc.ServerOption{
+		grpc.Creds(creds),
+		grpc.UnaryInterceptor(unaryInterceptor), 
+		grpc.MaxRecvMsgSize(viper.GetInt("maxMessageSize")*1024*1024),
+	}
 
 	// create a gRPC server object
 	grpcServer := grpc.NewServer(opts...)