Cleanup uploads

changelog/unreleased/upload-expiration.md

@@ -0,0 +1,9 @@
+Enhancement: Upload expiration and cleanup
+
+We made storage providers aware of upload expiration and added an interface
+for FS which support listing and purging expired uploads.
+
+We also implemented said interface for decomposedfs.
+
+https://github.com/cs3org/reva/pull/3095
+https://github.com/owncloud/ocis/pull/4256

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/cheggaaa/pb v1.0.29
 	github.com/coreos/go-oidc v2.2.1+incompatible
 	github.com/cs3org/cato v0.0.0-20200828125504-e418fc54dd5e
-	github.com/cs3org/go-cs3apis v0.0.0-20220711084433-8f71d4e812a3
+	github.com/cs3org/go-cs3apis v0.0.0-20220719130120-361e9f987d64
 	github.com/cubewise-code/go-mime v0.0.0-20200519001935-8c5762b177d8
 	github.com/dgraph-io/ristretto v0.1.0
 	github.com/eventials/go-tus v0.0.0-20200718001131-45c7ec8f5d59

go.sum

@@ -216,8 +216,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/cs3org/cato v0.0.0-20200828125504-e418fc54dd5e h1:tqSPWQeueWTKnJVMJffz4pz0o1WuQxJ28+5x5JgaHD8=
 github.com/cs3org/cato v0.0.0-20200828125504-e418fc54dd5e/go.mod h1:XJEZ3/EQuI3BXTp/6DUzFr850vlxq11I6satRtz0YQ4=
-github.com/cs3org/go-cs3apis v0.0.0-20220711084433-8f71d4e812a3 h1:QSQ2DGKPMChB4vHSs1Os9TnOJl21BrzKX9D5EtQfDog=
-github.com/cs3org/go-cs3apis v0.0.0-20220711084433-8f71d4e812a3/go.mod h1:UXha4TguuB52H14EMoSsCqDj7k8a/t7g4gVP+bgY5LY=
+github.com/cs3org/go-cs3apis v0.0.0-20220719130120-361e9f987d64 h1:cFnankJOCWndnOns4sKRG7yzH61ammK2Am6rEGWCK40=
+github.com/cs3org/go-cs3apis v0.0.0-20220719130120-361e9f987d64/go.mod h1:UXha4TguuB52H14EMoSsCqDj7k8a/t7g4gVP+bgY5LY=
 github.com/cubewise-code/go-mime v0.0.0-20200519001935-8c5762b177d8 h1:Z9lwXumT5ACSmJ7WGnFl+OMLLjpz5uR2fyz7dC255FI=
 github.com/cubewise-code/go-mime v0.0.0-20200519001935-8c5762b177d8/go.mod h1:4abs/jPXcmJzYoYGF91JF9Uq9s/KL5n1jvFDix8KcqY=
 github.com/cyberdelia/templates v0.0.0-20141128023046-ca7fffd4298c/go.mod h1:GyV+0YP4qX0UQ7r2MoYZ+AvYDp12OF5yg4q8rGnyNh4=

internal/grpc/services/gateway/storageprovider.go

@@ -81,13 +81,12 @@ type transferClaims struct {
 	Target string `json:"target"`
 }
 
-func (s *svc) sign(_ context.Context, target string) (string, error) {
+func (s *svc) sign(_ context.Context, target string, expiresAt int64) (string, error) {
 	// Tus sends a separate request to the datagateway service for every chunk.
 	// For large files, this can take a long time, so we extend the expiration
-	ttl := time.Duration(s.c.TransferExpires) * time.Second
 	claims := transferClaims{
 		StandardClaims: jwt.StandardClaims{
-			ExpiresAt: time.Now().Add(ttl).Unix(),
+			ExpiresAt: expiresAt,
 			Audience:  "reva",
 			IssuedAt:  time.Now().Unix(),
 		},
@@ -510,7 +509,7 @@ func (s *svc) InitiateFileDownload(ctx context.Context, req *provider.InitiateFi
 
 			// TODO(labkode): calculate signature of the whole request? we only sign the URI now. Maybe worth https://tools.ietf.org/html/draft-cavage-http-signatures-11
 			target := u.String()
-			token, err := s.sign(ctx, target)
+			token, err := s.sign(ctx, target, s.c.TransferExpires)
 			if err != nil {
 				return &gateway.InitiateFileDownloadResponse{
 					Status: status.NewStatusFromErrType(ctx, "error creating signature for download", err),
@@ -572,7 +571,12 @@ func (s *svc) InitiateFileUpload(ctx context.Context, req *provider.InitiateFile
 
 			// TODO(labkode): calculate signature of the whole request? we only sign the URI now. Maybe worth https://tools.ietf.org/html/draft-cavage-http-signatures-11
 			target := u.String()
-			token, err := s.sign(ctx, target)
+			ttl := time.Duration(s.c.TransferExpires) * time.Second
+			expiresAt := time.Now().Add(ttl).Unix()
+			if storageRes.Protocols[p].Expiration != nil {
+				expiresAt = utils.TSToTime(storageRes.Protocols[p].Expiration).Unix()
+			}
+			token, err := s.sign(ctx, target, expiresAt)
 			if err != nil {
 				return &gateway.InitiateFileUploadResponse{
 					Status: status.NewStatusFromErrType(ctx, "error creating signature for upload", err),

internal/grpc/services/storageprovider/storageprovider.go

@@ -28,6 +28,7 @@ import (
 	"path"
 	"sort"
 	"strconv"
+	"time"
 
 	rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
@@ -65,6 +66,7 @@ type config struct {
 	AvailableXS         map[string]uint32                 `mapstructure:"available_checksums" docs:"nil;List of available checksums."`
 	CustomMimeTypesJSON string                            `mapstructure:"custom_mimetypes_json" docs:"nil;An optional mapping file with the list of supported custom file extensions and corresponding mime types."`
 	MountID             string                            `mapstructure:"mount_id"`
+	UploadExpiration    int64                             `mapstructure:"upload_expiration" docs:"0;Duration for how long uploads will be valid."`
 }
 
 func (c *config) init() {
@@ -347,6 +349,13 @@ func (s *service) InitiateFileUpload(ctx context.Context, req *provider.Initiate
 
 	// pass on the provider it to be persisted with the upload info. that is required to correlate the upload with the proper provider later on
 	metadata["providerID"] = s.conf.MountID
+	var expirationTimestamp *typesv1beta1.Timestamp
+	if s.conf.UploadExpiration > 0 {
+		expirationTimestamp = &typesv1beta1.Timestamp{
+			Seconds: uint64(time.Now().UTC().Add(time.Duration(s.conf.UploadExpiration) * time.Second).Unix()),
+		}
+		metadata["expires"] = strconv.Itoa(int(expirationTimestamp.Seconds))
+	}
 
 	uploadIDs, err := s.storage.InitiateUpload(ctx, req.Ref, uploadLength, metadata)
 	if err != nil {
@@ -393,6 +402,7 @@ func (s *service) InitiateFileUpload(ctx context.Context, req *provider.Initiate
 			UploadEndpoint:     u.String(),
 			AvailableChecksums: s.availableXS,
 			Expose:             s.conf.ExposeDataServer,
+			Expiration:         expirationTimestamp,
 		}
 		i++
 		log.Info().Str("data-server", u.String()).

pkg/storage/storage.go

@@ -23,6 +23,8 @@ import (
 	"io"
 	"net/url"
 
+	tusd "github.com/tus/tusd/pkg/handler"
+
 	userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	registry "github.com/cs3org/go-cs3apis/cs3/storage/registry/v1beta1"
@@ -75,6 +77,12 @@ type FS interface {
 	DeleteStorageSpace(ctx context.Context, req *provider.DeleteStorageSpaceRequest) error
 }
 
+// UploadsManager defines the interface for FS implementations that allow for managing uploads
+type UploadsManager interface {
+	ListUploads() ([]tusd.FileInfo, error)
+	PurgeExpiredUploads(chan<- tusd.FileInfo) error
+}
+
 // Registry is the interface that storage registries implement
 // for discovering storage providers
 type Registry interface {

pkg/storage/utils/decomposedfs/upload.go

@@ -32,9 +32,13 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"regexp"
+	"strconv"
 	"strings"
 	"time"
 
+	tusd "github.com/tus/tusd/pkg/handler"
+
 	userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	"github.com/cs3org/reva/v2/pkg/appctx"
@@ -50,7 +54,6 @@ import (
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog"
-	tusd "github.com/tus/tusd/pkg/handler"
 )
 
 var defaultFilePerm = os.FileMode(0664)
@@ -154,6 +157,9 @@ func (fs *Decomposedfs) InitiateUpload(ctx context.Context, ref *provider.Refere
 		if mtime, ok := metadata["mtime"]; ok {
 			info.MetaData["mtime"] = mtime
 		}
+		if expiration, ok := metadata["expires"]; ok {
+			info.MetaData["expires"] = expiration
+		}
 		if _, ok := metadata["sizedeferred"]; ok {
 			info.SizeIsDeferred = true
 		}
@@ -335,8 +341,7 @@ func (fs *Decomposedfs) getUploadPath(ctx context.Context, uploadID string) (str
 	return filepath.Join(fs.o.Root, "uploads", uploadID), nil
 }
 
-// GetUpload returns the Upload for the given upload id
-func (fs *Decomposedfs) GetUpload(ctx context.Context, id string) (tusd.Upload, error) {
+func (fs *Decomposedfs) readInfo(id string) (tusd.FileInfo, error) {
 	infoPath := filepath.Join(fs.o.Root, "uploads", id+".info")
 
 	info := tusd.FileInfo{}
@@ -346,19 +351,28 @@ func (fs *Decomposedfs) GetUpload(ctx context.Context, id string) (tusd.Upload,
 			// Interpret os.ErrNotExist as 404 Not Found
 			err = tusd.ErrNotFound
 		}
-		return nil, err
+		return tusd.FileInfo{}, err
 	}
 	if err := json.Unmarshal(data, &info); err != nil {
-		return nil, err
+		return tusd.FileInfo{}, err
 	}
 
 	stat, err := os.Stat(info.Storage["BinPath"])
 	if err != nil {
-		return nil, err
+		return tusd.FileInfo{}, err
 	}
-
 	info.Offset = stat.Size()
 
+	return info, nil
+}
+
+// GetUpload returns the Upload for the given upload id
+func (fs *Decomposedfs) GetUpload(ctx context.Context, id string) (tusd.Upload, error) {
+	info, err := fs.readInfo(id)
+	if err != nil {
+		return nil, err
+	}
+
 	u := &userpb.User{
 		Id: &userpb.UserId{
 			Idp:      info.Storage["Idp"],
@@ -383,12 +397,58 @@ func (fs *Decomposedfs) GetUpload(ctx context.Context, id string) (tusd.Upload,
 	return &fileUpload{
 		info:     info,
 		binPath:  info.Storage["BinPath"],
-		infoPath: infoPath,
+		infoPath: filepath.Join(fs.o.Root, "uploads", id+".info"),
 		fs:       fs,
 		ctx:      ctx,
 	}, nil
 }
 
+// ListUploads returns a list of all incomplete uploads
+func (fs *Decomposedfs) ListUploads() ([]tusd.FileInfo, error) {
+	infos, err := filepath.Glob(filepath.Join(fs.o.Root, "uploads", "*.info"))
+	if err != nil {
+		return nil, err
+	}
+	list := make([]tusd.FileInfo, len(infos))
+	idRegexp := regexp.MustCompile(".*/([^/]+).info")
+	for i, info := range infos {
+		match := idRegexp.FindStringSubmatch(info)
+		upload, err := fs.readInfo(match[1])
+		if err != nil {
+			return nil, err
+		}
+		list[i] = upload
+	}
+	return list, nil
+}
+
+// PurgeExpiredUploads scans the fs for expired downloads and removes any leftovers
+func (fs *Decomposedfs) PurgeExpiredUploads(purgedChan chan<- tusd.FileInfo) error {
+	infos, err := filepath.Glob(filepath.Join(fs.o.Root, "uploads", "*.info"))
+	if err != nil {
+		return err
+	}
+
+	idRegexp := regexp.MustCompile(".*/([^/]+).info")
+	for _, info := range infos {
+		match := idRegexp.FindStringSubmatch(info)
+		upload, err := fs.readInfo(match[1])
+		if err != nil {
+			return err
+		}
+		expires, err := strconv.Atoi(upload.MetaData["expires"])
+		if err != nil {
+			continue
+		}
+		if int64(expires) < time.Now().Unix() {
+			purgedChan <- upload
+			os.Remove(upload.Storage["BinPath"])
+			os.Remove(info)
+		}
+	}
+	return nil
+}
+
 // lookupNode looks up nodes by path.
 // This method can also handle lookups for paths which contain chunking information.
 func (fs *Decomposedfs) lookupNode(ctx context.Context, spaceRoot *node.Node, path string) (*node.Node, error) {