Golang grpc.Code函數代碼示例

func TestRemoveUnusedSecret(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Stop()

	// removing a secret without providing an ID results in an InvalidArgument
	_, err := ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{})
	assert.Error(t, err)
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err), grpc.ErrorDesc(err))

	// removing a secret that exists succeeds
	secret := secretFromSecretSpec(createSecretSpec("name", []byte("data"), nil))
	err = ts.Store.Update(func(tx store.Tx) error {
		return store.CreateSecret(tx, secret)
	})
	assert.NoError(t, err)

	resp, err := ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{SecretID: secret.ID})
	assert.NoError(t, err)
	assert.Equal(t, api.RemoveSecretResponse{}, *resp)

	// ---- it was really removed because attempting to remove it again fails with a NotFound ----
	_, err = ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{SecretID: secret.ID})
	assert.Error(t, err)
	assert.Equal(t, codes.NotFound, grpc.Code(err), grpc.ErrorDesc(err))

}

// TabletErrorFromGRPC returns a ServerError or a
// OperationalError from the gRPC error.
func TabletErrorFromGRPC(err error) error {
	if err == nil {
		return nil
	}

	// TODO(aaijazi): Unfortunately, there's no better way to check for a gRPC server
	// error (vs a client error).
	// See: https://github.com/grpc/grpc-go/issues/319
	if !strings.Contains(err.Error(), vterrors.GRPCServerErrPrefix) {
		return OperationalError(fmt.Sprintf("vttablet: %v", err))
	}
	// server side error, convert it
	var code int
	switch grpc.Code(err) {
	case codes.Internal:
		code = ERR_FATAL
	case codes.FailedPrecondition:
		code = ERR_RETRY
	case codes.ResourceExhausted:
		code = ERR_TX_POOL_FULL
	case codes.Aborted:
		code = ERR_NOT_IN_TX
	default:
		code = ERR_NORMAL
	}

	return &ServerError{
		Code:       code,
		Err:        fmt.Sprintf("vttablet: %v", err),
		ServerCode: vterrors.GRPCCodeToErrorCode(grpc.Code(err)),
	}
}

func doCancelAfterFirstResponse(tc testpb.TestServiceClient) {
	ctx, cancel := context.WithCancel(context.Background())
	stream, err := tc.FullDuplexCall(ctx)
	if err != nil {
		grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
	}
	respParam := []*testpb.ResponseParameters{
		{
			Size: proto.Int32(31415),
		},
	}
	pl := newPayload(testpb.PayloadType_COMPRESSABLE, 27182)
	req := &testpb.StreamingOutputCallRequest{
		ResponseType:       testpb.PayloadType_COMPRESSABLE.Enum(),
		ResponseParameters: respParam,
		Payload:            pl,
	}
	if err := stream.Send(req); err != nil {
		grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
	}
	if _, err := stream.Recv(); err != nil {
		grpclog.Fatalf("%v.Recv() = %v", stream, err)
	}
	cancel()
	if _, err := stream.Recv(); grpc.Code(err) != codes.Canceled {
		grpclog.Fatalf("%v compleled with error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
	}
	grpclog.Println("CancelAfterFirstResponse done")
}

func TestGetSecret(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Stop()

	// ---- getting a secret without providing an ID results in an InvalidArgument ----
	_, err := ts.Client.GetSecret(context.Background(), &api.GetSecretRequest{})
	assert.Error(t, err)
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err), grpc.ErrorDesc(err))

	// ---- getting a non-existent secret fails with NotFound ----
	_, err = ts.Client.GetSecret(context.Background(), &api.GetSecretRequest{SecretID: "12345"})
	assert.Error(t, err)
	assert.Equal(t, codes.NotFound, grpc.Code(err), grpc.ErrorDesc(err))

	// ---- getting an existing secret returns the secret with all the private data cleaned ----
	secret := secretFromSecretSpec(createSecretSpec("name", []byte("data"), nil))
	err = ts.Store.Update(func(tx store.Tx) error {
		return store.CreateSecret(tx, secret)
	})
	assert.NoError(t, err)

	resp, err := ts.Client.GetSecret(context.Background(), &api.GetSecretRequest{SecretID: secret.ID})
	assert.NoError(t, err)
	assert.NotNil(t, resp)
	assert.NotNil(t, resp.Secret)

	// the data should be empty/omitted
	assert.NotEqual(t, secret, resp.Secret)
	secret.Spec.Data = nil
	assert.Equal(t, secret, resp.Secret)
}

func TestCreateService(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Stop()
	_, err := ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{})
	assert.Error(t, err)
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err))

	spec := createSpec("name", "image", 1)
	r, err := ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec})
	assert.NoError(t, err)
	assert.NotEmpty(t, r.Service.ID)

	// test port conflicts
	spec = createSpec("name2", "image", 1)
	spec.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{PublishedPort: uint32(9000), TargetPort: uint32(9000), Protocol: api.PortConfig_Protocol(api.ProtocolTCP)},
	}}
	r, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec})
	assert.NoError(t, err)
	assert.NotEmpty(t, r.Service.ID)

	spec2 := createSpec("name3", "image", 1)
	spec2.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{PublishedPort: uint32(9000), TargetPort: uint32(9000), Protocol: api.PortConfig_Protocol(api.ProtocolTCP)},
	}}
	_, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec2})
	assert.Error(t, err)
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err))

	// test no port conflicts when no publish port is specified
	spec3 := createSpec("name4", "image", 1)
	spec3.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{TargetPort: uint32(9000), Protocol: api.PortConfig_Protocol(api.ProtocolTCP)},
	}}
	r, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec3})
	assert.NoError(t, err)
	assert.NotEmpty(t, r.Service.ID)
	spec4 := createSpec("name5", "image", 1)
	spec4.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{TargetPort: uint32(9001), Protocol: api.PortConfig_Protocol(api.ProtocolTCP)},
	}}
	_, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec4})
	assert.NoError(t, err)

	// ensure no port conflict when different protocols are used
	spec = createSpec("name6", "image", 1)
	spec.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{PublishedPort: uint32(9100), TargetPort: uint32(9100), Protocol: api.PortConfig_Protocol(api.ProtocolTCP)},
	}}
	r, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec})
	assert.NoError(t, err)
	assert.NotEmpty(t, r.Service.ID)

	spec2 = createSpec("name7", "image", 1)
	spec2.Endpoint = &api.EndpointSpec{Ports: []*api.PortConfig{
		{PublishedPort: uint32(9100), TargetPort: uint32(9100), Protocol: api.PortConfig_Protocol(api.ProtocolUDP)},
	}}
	_, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: spec2})
	assert.NoError(t, err)
}

func TestGetCluster(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Stop()
	_, err := ts.Client.GetCluster(context.Background(), &api.GetClusterRequest{})
	assert.Error(t, err)
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err))

	_, err = ts.Client.GetCluster(context.Background(), &api.GetClusterRequest{ClusterID: "invalid"})
	assert.Error(t, err)
	assert.Equal(t, codes.NotFound, grpc.Code(err))

	cluster := createCluster(t, ts, "name", "name", api.AcceptancePolicy{}, ts.Server.rootCA)
	r, err := ts.Client.GetCluster(context.Background(), &api.GetClusterRequest{ClusterID: cluster.ID})
	assert.NoError(t, err)
	cluster.Meta.Version = r.Cluster.Meta.Version
	// Only public fields should be available
	assert.Equal(t, cluster.ID, r.Cluster.ID)
	assert.Equal(t, cluster.Meta, r.Cluster.Meta)
	assert.Equal(t, cluster.Spec, r.Cluster.Spec)
	assert.Equal(t, cluster.RootCA.CACert, r.Cluster.RootCA.CACert)
	assert.Equal(t, cluster.RootCA.CACertHash, r.Cluster.RootCA.CACertHash)
	// CAKey and network keys should be nil
	assert.Nil(t, r.Cluster.RootCA.CAKey)
	assert.Nil(t, r.Cluster.NetworkBootstrapKeys)
}

// DefaultHTTPError is the default implementation of HTTPError.
// If "err" is an error from gRPC system, the function replies with the status code mapped by HTTPStatusFromCode.
// If otherwise, it replies with http.StatusInternalServerError.
//
// The response body returned by this function is a JSON object,
// which contains a member whose key is "error" and whose value is err.Error().
func DefaultHTTPError(ctx context.Context, w http.ResponseWriter, _ *http.Request, err error) {
	const fallback = `{"error": "failed to marshal error message"}`

	w.Header().Del("Trailer")
	w.Header().Set("Content-Type", "application/json")
	body := errorBody{
		Error: grpc.ErrorDesc(err),
		Code:  int(grpc.Code(err)),
	}
	buf, merr := json.Marshal(body)
	if merr != nil {
		grpclog.Printf("Failed to marshal error message %q: %v", body, merr)
		w.WriteHeader(http.StatusInternalServerError)
		if _, err := io.WriteString(w, fallback); err != nil {
			grpclog.Printf("Failed to write response: %v", err)
		}
		return
	}

	md, ok := ServerMetadataFromContext(ctx)
	if !ok {
		grpclog.Printf("Failed to extract ServerMetadata from context")
	}

	handleForwardResponseServerMetadata(w, md)
	st := HTTPStatusFromCode(grpc.Code(err))
	w.WriteHeader(st)
	if _, err := w.Write(buf); err != nil {
		grpclog.Printf("Failed to write response: %v", err)
	}

	handleForwardResponseTrailer(w, md)
}

func checkRPCError(err error, code codes.Code, message string) error {
	if g, e := grpc.Code(err), code; g != e {
		return fmt.Errorf("wrong grpc error code: %v != %v", g, e)
	}
	// TODO https://github.com/grpc/grpc-go/issues/110
	if g, e := err.Error(), fmt.Sprintf("rpc error: code = %d desc = %q", grpc.Code(err), message); g != e {
		return fmt.Errorf("wrong error message: %v != %v", g, e)
	}
	return nil
}

// DoCancelAfterBegin cancels the RPC after metadata has been sent but before payloads are sent.
func DoCancelAfterBegin(tc testpb.TestServiceClient) {
	ctx, cancel := context.WithCancel(metadata.NewContext(context.Background(), testMetadata))
	stream, err := tc.StreamingInputCall(ctx)
	if err != nil {
		grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err)
	}
	cancel()
	_, err = stream.CloseAndRecv()
	if grpc.Code(err) != codes.Canceled {
		grpclog.Fatalf("%v.CloseAndRecv() got error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
	}
}

// IsClosedConnection returns true if err is an error produced by gRPC on closed connections.
func IsClosedConnection(err error) bool {
	if err == context.Canceled ||
		grpc.Code(err) == codes.Canceled ||
		grpc.Code(err) == codes.Unavailable ||
		grpc.ErrorDesc(err) == grpc.ErrClientConnClosing.Error() ||
		strings.Contains(err.Error(), "is closing") ||
		strings.Contains(err.Error(), "node unavailable") {
		return true
	}
	if streamErr, ok := err.(transport.StreamError); ok && streamErr.Code == codes.Canceled {
		return true
	}
	return netutil.IsClosedConnection(err)
}

func TestRemoveUsedSecret(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Stop()

	// Create two secrets
	data := []byte("secret")
	creationSpec := createSecretSpec("secretID1", data, nil)
	resp, err := ts.Client.CreateSecret(context.Background(), &api.CreateSecretRequest{Spec: creationSpec})
	assert.NoError(t, err)
	creationSpec2 := createSecretSpec("secretID2", data, nil)
	resp2, err := ts.Client.CreateSecret(context.Background(), &api.CreateSecretRequest{Spec: creationSpec2})
	assert.NoError(t, err)

	// Create a service that uses a secret
	service := createSpec("service1", "image", 1)
	secretRefs := []*api.SecretReference{
		{
			SecretName: resp.Secret.Spec.Annotations.Name,
			SecretID:   resp.Secret.ID,
			Target: &api.SecretReference_File{
				File: &api.SecretReference_FileTarget{
					Name: "target.txt",
				},
			},
		},
	}
	service.Task.GetContainer().Secrets = secretRefs
	_, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: service})
	assert.NoError(t, err)

	service2 := createSpec("service2", "image", 1)
	service2.Task.GetContainer().Secrets = secretRefs
	_, err = ts.Client.CreateService(context.Background(), &api.CreateServiceRequest{Spec: service2})
	assert.NoError(t, err)

	// removing a secret that exists but is in use fails
	_, err = ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{SecretID: resp.Secret.ID})
	assert.Equal(t, codes.InvalidArgument, grpc.Code(err), grpc.ErrorDesc(err))
	assert.Regexp(t, "service[1-2], service[1-2]", grpc.ErrorDesc(err))

	// removing a secret that exists but is not in use succeeds
	_, err = ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{SecretID: resp2.Secret.ID})
	assert.NoError(t, err)

	// it was really removed because attempting to remove it again fails with a NotFound
	_, err = ts.Client.RemoveSecret(context.Background(), &api.RemoveSecretRequest{SecretID: resp2.Secret.ID})
	assert.Error(t, err)
	assert.Equal(t, codes.NotFound, grpc.Code(err), grpc.ErrorDesc(err))
}

func (p *raftProxyHealthServer) Check(ctx context.Context, r *HealthCheckRequest) (*HealthCheckResponse, error) {

	if p.cluster.IsLeader() {
		return p.local.Check(ctx, r)
	}
	ctx, err := p.runCtxMods(ctx)
	if err != nil {
		return nil, err
	}
	conn, err := p.connSelector.Conn()
	if err != nil {
		return nil, err
	}

	defer func() {
		if err != nil {
			errStr := err.Error()
			if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
				strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
				strings.Contains(errStr, "connection error") ||
				grpc.Code(err) == codes.Internal {
				p.connSelector.Reset()
			}
		}
	}()

	return NewHealthClient(conn).Check(ctx, r)
}

func TestLanguageServiceAnnotateTextError(t *testing.T) {
	errCode := codes.Internal
	mockLanguage.err = grpc.Errorf(errCode, "test error")

	var document *languagepb.Document = &languagepb.Document{}
	var features *languagepb.AnnotateTextRequest_Features = &languagepb.AnnotateTextRequest_Features{}
	var encodingType languagepb.EncodingType = 0
	var request = &languagepb.AnnotateTextRequest{
		Document:     document,
		Features:     features,
		EncodingType: encodingType,
	}

	c, err := NewClient(context.Background(), clientOpt)
	if err != nil {
		t.Fatal(err)
	}

	resp, err := c.AnnotateText(context.Background(), request)

	if c := grpc.Code(err); c != errCode {
		t.Errorf("got error code %q, want %q", c, errCode)
	}
	_ = resp
}

func unwrapError(err error) error {
	code := grpc.Code(err)
	errBody := grpc.ErrorDesc(err)
	switch code {
	case InternalServerError:
		return core.InternalServerError(errBody)
	case NotSupportedError:
		return core.NotSupportedError(errBody)
	case MalformedRequestError:
		return core.MalformedRequestError(errBody)
	case UnauthorizedError:
		return core.UnauthorizedError(errBody)
	case NotFoundError:
		return core.NotFoundError(errBody)
	case SignatureValidationError:
		return core.SignatureValidationError(errBody)
	case NoSuchRegistrationError:
		return core.NoSuchRegistrationError(errBody)
	case RateLimitedError:
		return core.RateLimitedError(errBody)
	case LengthRequiredError:
		return core.LengthRequiredError(errBody)
	case BadNonceError:
		return core.BadNonceError(errBody)
	default:
		return err
	}
}

func testCancel(t *testing.T, e env) {
	s, addr := serverSetUp(t, nil, math.MaxUint32, nil, nil, e)
	cc := clientSetUp(t, addr, nil, nil, "", e)
	tc := testpb.NewTestServiceClient(cc)
	defer tearDown(s, cc)
	argSize := 2718
	respSize := 314

	payload, err := newPayload(testpb.PayloadType_COMPRESSABLE, int32(argSize))
	if err != nil {
		t.Fatal(err)
	}

	req := &testpb.SimpleRequest{
		ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
		ResponseSize: proto.Int32(int32(respSize)),
		Payload:      payload,
	}
	ctx, cancel := context.WithCancel(context.Background())
	time.AfterFunc(1*time.Millisecond, cancel)
	reply, err := tc.UnaryCall(ctx, req)
	if grpc.Code(err) != codes.Canceled {
		t.Fatalf(`TestService/UnaryCall(_, _) = %v, %v; want <nil>, error code: %d`, reply, err, codes.Canceled)
	}
}