Deprecate using errors.New and fmt.Errorf (#1673)

changelog/unreleased/fdeprecate-errors-new-fmt-errorf.md

@@ -0,0 +1,6 @@
+Enhancement: Deprecate using errors.New and fmt.Errorf
+
+Previously we were using errors.New and fmt.Errorf to create errors.
+Now we use the errors defined in the errtypes package.
+
+https://github.com/cs3org/reva/issues/1673

internal/grpc/interceptors/auth/auth.go

@@ -20,10 +20,10 @@ package auth
 
 import (
 	"context"
-	"fmt"
 
 	userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
 	"github.com/cs3org/reva/pkg/appctx"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/token"
 	tokenmgr "github.com/cs3org/reva/pkg/token/manager/registry"
 	"github.com/cs3org/reva/pkg/user"
@@ -67,7 +67,7 @@ func NewUnary(m map[string]interface{}, unprotected []string) (grpc.UnaryServerI
 
 	h, ok := tokenmgr.NewFuncs[conf.TokenManager]
 	if !ok {
-		return nil, errors.New("auth: token manager does not exist: " + conf.TokenManager)
+		return nil, errtypes.NotFound("auth: token manager does not exist: " + conf.TokenManager)
 	}
 
 	tokenManager, err := h(conf.TokenManagers[conf.TokenManager])
@@ -140,12 +140,12 @@ func NewStream(m map[string]interface{}, unprotected []string) (grpc.StreamServe
 
 	h, ok := tokenmgr.NewFuncs[conf.TokenManager]
 	if !ok {
-		return nil, fmt.Errorf("auth: token manager not found: %s", conf.TokenManager)
+		return nil, errtypes.NotFound("auth: token manager not found: " + conf.TokenManager)
 	}
 
 	tokenManager, err := h(conf.TokenManagers[conf.TokenManager])
 	if err != nil {
-		return nil, errors.New("auth: token manager not found: " + conf.TokenManager)
+		return nil, errtypes.NotFound("auth: token manager not found: " + conf.TokenManager)
 	}
 
 	interceptor := func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {

internal/grpc/services/appprovider/appprovider.go

@@ -35,6 +35,7 @@ import (
 	"github.com/cs3org/reva/pkg/app"
 	"github.com/cs3org/reva/pkg/app/provider/demo"
 	"github.com/cs3org/reva/pkg/appctx"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc"
 	"github.com/cs3org/reva/pkg/rgrpc/status"
 	"github.com/cs3org/reva/pkg/rhttp"
@@ -109,7 +110,7 @@ func getProvider(c *config) (app.Provider, error) {
 	case "demo":
 		return demo.New(c.Demo)
 	default:
-		return nil, fmt.Errorf("driver not found: %s", c.Driver)
+		return nil, errtypes.NotFound("driver not found: " + c.Driver)
 	}
 }
 
@@ -131,7 +132,7 @@ func (s *service) getWopiAppEndpoints(ctx context.Context) (map[string]interface
 	}
 	defer appsRes.Body.Close()
 	if appsRes.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("Request to WOPI server returned %d", appsRes.StatusCode)
+		return nil, errtypes.InternalError(fmt.Sprintf("Request to WOPI server returned %d", appsRes.StatusCode))
 	}
 	appsBody, err := ioutil.ReadAll(appsRes.Body)
 	if err != nil {
@@ -263,7 +264,7 @@ func (s *service) OpenFileInAppProvider(ctx context.Context, req *providerpb.Ope
 		}
 		defer bridgeRes.Body.Close()
 		if bridgeRes.StatusCode != http.StatusFound {
-			return nil, fmt.Errorf("Request to WOPI bridge returned %d", bridgeRes.StatusCode)
+			return nil, errtypes.InternalError(fmt.Sprintf("Request to WOPI bridge returned %d", bridgeRes.StatusCode))
 		}
 		appProviderURL = bridgeRes.Header.Get("Location")
 	}

internal/grpc/services/appregistry/appregistry.go

@@ -20,13 +20,13 @@ package appregistry
 
 import (
 	"context"
-	"fmt"
 
 	"google.golang.org/grpc"
 
 	registrypb "github.com/cs3org/go-cs3apis/cs3/app/registry/v1beta1"
 	"github.com/cs3org/reva/pkg/app"
 	"github.com/cs3org/reva/pkg/app/registry/static"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc"
 	"github.com/cs3org/reva/pkg/rgrpc/status"
 	"github.com/mitchellh/mapstructure"
@@ -90,7 +90,7 @@ func getRegistry(c *config) (app.Registry, error) {
 	case "static":
 		return static.New(c.Static)
 	default:
-		return nil, fmt.Errorf("driver not found: %s", c.Driver)
+		return nil, errtypes.NotFound("driver not found: " + c.Driver)
 	}
 }
 

internal/grpc/services/appregistry/appregistry_test.go

@@ -274,12 +274,12 @@ func TestNew(t *testing.T) {
 		{
 			name:    "not existing driver",
 			m:       map[string]interface{}{"Driver": "doesnotexist"},
-			wantErr: "driver not found: doesnotexist",
+			wantErr: "error: not found: driver not found: doesnotexist",
 		},
 		{
 			name:    "empty",
 			m:       map[string]interface{}{},
-			wantErr: "driver not found: ",
+			wantErr: "error: not found: driver not found: ",
 		},
 		{
 			name:    "extra not existing field in setting",

internal/grpc/services/authprovider/authprovider.go

@@ -66,12 +66,12 @@ func parseConfig(m map[string]interface{}) (*config, error) {
 
 func getAuthManager(manager string, m map[string]map[string]interface{}) (auth.Manager, error) {
 	if manager == "" {
-		return nil, errors.New("authsvc: driver not configured for auth manager")
+		return nil, errtypes.InternalError("authsvc: driver not configured for auth manager")
 	}
 	if f, ok := registry.NewFuncs[manager]; ok {
 		return f(m[manager])
 	}
-	return nil, fmt.Errorf("authsvc: driver %s not found for auth manager", manager)
+	return nil, errtypes.NotFound(fmt.Sprintf("authsvc: driver %s not found for auth manager", manager))
 }
 
 // New returns a new AuthProviderServiceServer.

internal/grpc/services/authregistry/authregistry.go

@@ -20,11 +20,11 @@ package authregistry
 
 import (
 	"context"
-	"fmt"
 
 	registrypb "github.com/cs3org/go-cs3apis/cs3/auth/registry/v1beta1"
 	"github.com/cs3org/reva/pkg/auth"
 	"github.com/cs3org/reva/pkg/auth/registry/registry"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc"
 	"github.com/cs3org/reva/pkg/rgrpc/status"
 	"github.com/mitchellh/mapstructure"
@@ -98,7 +98,7 @@ func getRegistry(c *config) (auth.Registry, error) {
 	if f, ok := registry.NewFuncs[c.Driver]; ok {
 		return f(c.Drivers[c.Driver])
 	}
-	return nil, fmt.Errorf("authregistrysvc: driver not found: %s", c.Driver)
+	return nil, errtypes.NotFound("authregistrysvc: driver not found: " + c.Driver)
 }
 
 func (s *service) ListAuthProviders(ctx context.Context, req *registrypb.ListAuthProvidersRequest) (*registrypb.ListAuthProvidersResponse, error) {

internal/grpc/services/datatx/datatx.go

@@ -22,6 +22,7 @@ import (
 	"context"
 
 	datatx "github.com/cs3org/go-cs3apis/cs3/tx/v1beta1"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc"
 	"github.com/cs3org/reva/pkg/rgrpc/status"
 	"github.com/mitchellh/mapstructure"
@@ -82,18 +83,18 @@ func (s *service) UnprotectedEndpoints() []string {
 
 func (s *service) CreateTransfer(ctx context.Context, req *datatx.CreateTransferRequest) (*datatx.CreateTransferResponse, error) {
 	return &datatx.CreateTransferResponse{
-		Status: status.NewUnimplemented(ctx, errors.New("CreateTransfer not implemented"), "CreateTransfer not implemented"),
+		Status: status.NewUnimplemented(ctx, errtypes.NotSupported("CreateTransfer not implemented"), "CreateTransfer not implemented"),
 	}, nil
 }
 
 func (s *service) GetTransferStatus(ctx context.Context, in *datatx.GetTransferStatusRequest) (*datatx.GetTransferStatusResponse, error) {
 	return &datatx.GetTransferStatusResponse{
-		Status: status.NewUnimplemented(ctx, errors.New("GetTransferStatus not implemented"), "GetTransferStatus not implemented"),
+		Status: status.NewUnimplemented(ctx, errtypes.NotSupported("GetTransferStatus not implemented"), "GetTransferStatus not implemented"),
 	}, nil
 }
 
 func (s *service) CancelTransfer(ctx context.Context, in *datatx.CancelTransferRequest) (*datatx.CancelTransferResponse, error) {
 	return &datatx.CancelTransferResponse{
-		Status: status.NewUnimplemented(ctx, errors.New("CancelTransfer not implemented"), "CancelTransfer not implemented"),
+		Status: status.NewUnimplemented(ctx, errtypes.NotSupported("CancelTransfer not implemented"), "CancelTransfer not implemented"),
 	}, nil
 }

internal/grpc/services/gateway/appprovider.go

@@ -181,7 +181,7 @@ func (s *svc) openLocalResources(ctx context.Context, ri *storageprovider.Resour
 	accessToken, ok := token.ContextGetToken(ctx)
 	if !ok || accessToken == "" {
 		return &providerpb.OpenFileInAppProviderResponse{
-			Status: status.NewUnauthenticated(ctx, errors.New("Access token is invalid or empty"), ""),
+			Status: status.NewUnauthenticated(ctx, errtypes.InvalidCredentials("Access token is invalid or empty"), ""),
 		}, nil
 	}
 
@@ -246,7 +246,7 @@ func (s *svc) findAppProvider(ctx context.Context, ri *storageprovider.ResourceI
 		return nil, errtypes.NotFound("gateway: app provider not found for resource: " + ri.String())
 	}
 
-	return nil, errors.New("gateway: error finding a storage provider")
+	return nil, errtypes.InternalError("gateway: error finding a storage provider")
 }
 
 func getGRPCConfig(opaque *typespb.Opaque) (bool, bool) {

internal/grpc/services/gateway/authprovider.go

@@ -43,7 +43,7 @@ func (s *svc) Authenticate(ctx context.Context, req *gateway.AuthenticateRequest
 	// find auth provider
 	c, err := s.findAuthProvider(ctx, req.Type)
 	if err != nil {
-		err = errors.New("gateway: error finding auth provider for type: " + req.Type)
+		err = errtypes.NotFound("gateway: error finding auth provider for type: " + req.Type)
 		return &gateway.AuthenticateResponse{
 			Status: status.NewInternal(ctx, err, "error getting auth provider client"),
 		}, nil
@@ -77,7 +77,7 @@ func (s *svc) Authenticate(ctx context.Context, req *gateway.AuthenticateRequest
 
 	// validate valid userId
 	if res.User == nil {
-		err := errors.New("gateway: user after Authenticate is nil")
+		err := errtypes.NotFound("gateway: user after Authenticate is nil")
 		log.Err(err).Msg("user is nil")
 		return &gateway.AuthenticateResponse{
 			Status: status.NewInternal(ctx, err, "user is nil"),
@@ -86,7 +86,7 @@ func (s *svc) Authenticate(ctx context.Context, req *gateway.AuthenticateRequest
 
 	uid := res.User.Id
 	if uid == nil {
-		err := errors.New("gateway: uid after Authenticate is nil")
+		err := errtypes.NotFound("gateway: uid after Authenticate is nil")
 		log.Err(err).Msg("user id is nil")
 		return &gateway.AuthenticateResponse{
 			Status: status.NewInternal(ctx, err, "user id is nil"),
@@ -191,5 +191,5 @@ func (s *svc) findAuthProvider(ctx context.Context, authType string) (provider.P
 		return nil, errtypes.NotFound("gateway: auth provider not found for type:" + authType)
 	}
 
-	return nil, errors.New("gateway: error finding an auth provider for type: " + authType)
+	return nil, errtypes.InternalError("gateway: error finding an auth provider for type: " + authType)
 }

internal/grpc/services/gateway/gateway.go

@@ -27,6 +27,7 @@ import (
 	gateway "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
 
 	"github.com/ReneKroon/ttlcache/v2"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc"
 	"github.com/cs3org/reva/pkg/sharedconf"
 	"github.com/cs3org/reva/pkg/token"
@@ -177,5 +178,5 @@ func getTokenManager(manager string, m map[string]map[string]interface{}) (token
 		return f(m[manager])
 	}
 
-	return nil, fmt.Errorf("driver %s not found for token manager", manager)
+	return nil, errtypes.NotFound(fmt.Sprintf("driver %s not found for token manager", manager))
 }

internal/grpc/services/gateway/ocmshareprovider.go

@@ -268,7 +268,7 @@ func (s *svc) UpdateReceivedOCMShare(ctx context.Context, req *ocm.UpdateReceive
 	}
 
 	// TODO(labkode): implementing updating display name
-	err = errors.New("gateway: update of display name is not yet implemented")
+	err = errtypes.NotSupported("gateway: update of display name is not yet implemented")
 	return &ocm.UpdateReceivedOCMShareResponse{
 		Status: status.NewUnimplemented(ctx, err, "error updating received share"),
 	}, nil
@@ -304,7 +304,7 @@ func (s *svc) createWebdavReference(ctx context.Context, share *ocm.Share) (*rpc
 	case "plain":
 		token = string(tokenOpaque.Value)
 	default:
-		err := errors.New("opaque entry decoder not recognized: " + tokenOpaque.Decoder)
+		err := errtypes.NotSupported("opaque entry decoder not recognized: " + tokenOpaque.Decoder)
 		return status.NewInternal(ctx, err, "invalid opaque entry decoder"), nil
 	}
 

internal/grpc/services/gateway/publicshareprovider.go

@@ -24,13 +24,14 @@ import (
 	rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
 	link "github.com/cs3org/go-cs3apis/cs3/sharing/link/v1beta1"
 	"github.com/cs3org/reva/pkg/appctx"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rgrpc/todo/pool"
 	"github.com/pkg/errors"
 )
 
 func (s *svc) CreatePublicShare(ctx context.Context, req *link.CreatePublicShareRequest) (*link.CreatePublicShareResponse, error) {
 	if s.isSharedFolder(ctx, req.ResourceInfo.GetPath()) {
-		return nil, errors.New("gateway: can't create a public share of the share folder itself")
+		return nil, errtypes.AlreadyExists("gateway: can't create a public share of the share folder itself")
 	}
 
 	log := appctx.GetLogger(ctx)

internal/grpc/services/gateway/storageprovider.go

@@ -244,7 +244,7 @@ func (s *svc) InitiateFileDownload(ctx context.Context, req *provider.InitiateFi
 		}
 
 		if statRes.Info.Type != provider.ResourceType_RESOURCE_TYPE_REFERENCE {
-			err := errors.New(fmt.Sprintf("gateway: expected reference: got:%+v", statRes.Info))
+			err := errtypes.BadRequest(fmt.Sprintf("gateway: expected reference: got:%+v", statRes.Info))
 			log.Err(err).Msg("gateway: error stating share name")
 			return &gateway.InitiateFileDownloadResponse{
 				Status: status.NewInternal(ctx, err, "gateway: error initiating download"),
@@ -456,7 +456,7 @@ func (s *svc) InitiateFileUpload(ctx context.Context, req *provider.InitiateFile
 		}
 
 		if statRes.Info.Type != provider.ResourceType_RESOURCE_TYPE_REFERENCE {
-			err := errors.New(fmt.Sprintf("gateway: expected reference: got:%+v", statRes.Info))
+			err := errtypes.BadRequest(fmt.Sprintf("gateway: expected reference: got:%+v", statRes.Info))
 			log.Err(err).Msg("gateway: error stating share name")
 			return &gateway.InitiateFileUploadResponse{
 				Status: status.NewInternal(ctx, err, "gateway: error initiating upload"),
@@ -1387,7 +1387,7 @@ func (s *svc) checkRef(ctx context.Context, ri *provider.ResourceInfo) (*provide
 	case "webdav":
 		return nil, "webdav", nil
 	default:
-		err := errors.New("gateway: no reference handler for scheme: " + uri.Scheme)
+		err := errtypes.BadRequest("gateway: no reference handler for scheme: " + uri.Scheme)
 		return nil, "", err
 	}
 }
@@ -1429,12 +1429,12 @@ func (s *svc) handleCS3Ref(ctx context.Context, opaque string) (*provider.Resour
 		case rpc.Code_CODE_UNIMPLEMENTED:
 			return nil, errtypes.NotSupported(req.Ref.String())
 		default:
-			return nil, errors.New("gateway: error stating target reference")
+			return nil, errtypes.InternalError("gateway: error stating target reference")
 		}
 	}
 
 	if res.Info.Type == provider.ResourceType_RESOURCE_TYPE_REFERENCE {
-		err := errors.New("gateway: error the target of a reference cannot be another reference")
+		err := errtypes.BadRequest("gateway: error the target of a reference cannot be another reference")
 		return nil, err
 	}
 
@@ -1903,7 +1903,7 @@ func (s *svc) getSharedFolder(ctx context.Context) string {
 
 func (s *svc) CreateSymlink(ctx context.Context, req *provider.CreateSymlinkRequest) (*provider.CreateSymlinkResponse, error) {
 	return &provider.CreateSymlinkResponse{
-		Status: status.NewUnimplemented(ctx, errors.New("CreateSymlink not implemented"), "CreateSymlink not implemented"),
+		Status: status.NewUnimplemented(ctx, errtypes.NotSupported("CreateSymlink not implemented"), "CreateSymlink not implemented"),
 	}, nil
 }
 
@@ -1940,7 +1940,7 @@ func (s *svc) RestoreFileVersion(ctx context.Context, req *provider.RestoreFileV
 }
 
 func (s *svc) ListRecycleStream(_ *gateway.ListRecycleStreamRequest, _ gateway.GatewayAPI_ListRecycleStreamServer) error {
-	return errors.New("Unimplemented")
+	return errtypes.NotSupported("ListRecycleStream unimplemented")
 }
 
 // TODO use the ListRecycleRequest.Ref to only list the trash of a specific storage
@@ -2083,7 +2083,7 @@ func (s *svc) findProviders(ctx context.Context, ref *provider.Reference) ([]*re
 	}
 
 	if res.Providers == nil {
-		return nil, errors.New("gateway: provider is nil")
+		return nil, errtypes.NotFound("gateway: provider is nil")
 	}
 
 	return res.Providers, nil

internal/grpc/services/gateway/usershareprovider.go

@@ -37,7 +37,7 @@ import (
 func (s *svc) CreateShare(ctx context.Context, req *collaboration.CreateShareRequest) (*collaboration.CreateShareResponse, error) {
 
 	if s.isSharedFolder(ctx, req.ResourceInfo.GetPath()) {
-		return nil, errors.New("gateway: can't share the share folder itself")
+		return nil, errtypes.AlreadyExists("gateway: can't share the share folder itself")
 	}
 
 	c, err := pool.GetUserShareProviderClient(s.c.UserShareProviderEndpoint)
@@ -344,7 +344,7 @@ func (s *svc) UpdateReceivedShare(ctx context.Context, req *collaboration.Update
 	}
 
 	// TODO(labkode): implementing updating display name
-	err = errors.New("gateway: update of display name is not yet implemented")
+	err = errtypes.NotSupported("gateway: update of display name is not yet implemented")
 	return &collaboration.UpdateReceivedShareResponse{
 		Status: status.NewUnimplemented(ctx, err, "error updating received share"),
 	}, nil

internal/grpc/services/gateway/webdavstorageprovider.go

@@ -214,7 +214,7 @@ func (s *svc) webdavRefTransferEndpoint(ctx context.Context, targetURL string, n
 
 func (s *svc) extractEndpointInfo(ctx context.Context, targetURL string) (*webdavEndpoint, error) {
 	if targetURL == "" {
-		return nil, errors.New("gateway: ref target is an empty uri")
+		return nil, errtypes.BadRequest("gateway: ref target is an empty uri")
 	}
 
 	uri, err := url.Parse(targetURL)

internal/grpc/services/groupprovider/groupprovider.go

@@ -23,6 +23,7 @@ import (
 	"fmt"
 
 	grouppb "github.com/cs3org/go-cs3apis/cs3/identity/group/v1beta1"
+	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/group"
 	"github.com/cs3org/reva/pkg/group/manager/registry"
 	"github.com/cs3org/reva/pkg/rgrpc"
@@ -62,7 +63,7 @@ func getDriver(c *config) (group.Manager, error) {
 		return f(c.Drivers[c.Driver])
 	}
 
-	return nil, fmt.Errorf("driver %s not found for group manager", c.Driver)
+	return nil, errtypes.NotFound(fmt.Sprintf("driver %s not found for group manager", c.Driver))
 }
 
 // New returns a new GroupProviderServiceServer.