allow users with the list-all-spaces permission to list all spaces

This implementation is just a quick hack which is definitely not production ready. It should be changed as soon as we have a proper permission system in reva.
cs3org · Oct 26, 2021 · d196694 · d196694
1 parent fe35bd1
commit d196694
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Showing 11 changed files with 31 additions and 13 deletions.
diff --git a/changelog/unreleased/list-all-spaces.md b/changelog/unreleased/list-all-spaces.md
@@ -0,0 +1,6 @@
+Enhancement: Enable users to list all spaces
+
+Added a permission check if the user has the `list-all-spaces` permission.
+This enables users to list all spaces, even those which they are not members of.
+
+https://github.com/cs3org/reva/pull/2207
diff --git a/internal/grpc/services/storageprovider/storageprovider.go b/internal/grpc/services/storageprovider/storageprovider.go
@@ -20,6 +20,7 @@ package storageprovider
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"net/url"
 	"os"
@@ -449,7 +450,17 @@ func hasNodeID(s *provider.StorageSpace) bool {
 
 func (s *service) ListStorageSpaces(ctx context.Context, req *provider.ListStorageSpacesRequest) (*provider.ListStorageSpacesResponse, error) {
 	log := appctx.GetLogger(ctx)
-	spaces, err := s.storage.ListStorageSpaces(ctx, req.Filters)
+
+	// This is just a quick hack to get the users permission into reva.
+	// Replace this as soon as we have a proper system to check the users permissions.
+	opaque := req.Opaque
+	var permissions map[string]struct{}
+	if opaque != nil {
+		entry := opaque.Map["permissions"]
+		json.Unmarshal(entry.Value, &permissions)
+	}
+
+	spaces, err := s.storage.ListStorageSpaces(ctx, req.Filters, permissions)
 	if err != nil {
 		var st *rpc.Status
 		switch err.(type) {

diff --git a/pkg/storage/fs/nextcloud/nextcloud.go b/pkg/storage/fs/nextcloud/nextcloud.go
@@ -758,7 +758,7 @@ func (nc *StorageDriver) UnsetArbitraryMetadata(ctx context.Context, ref *provid
 }
 
 // ListStorageSpaces as defined in the storage.FS interface
-func (nc *StorageDriver) ListStorageSpaces(ctx context.Context, f []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (nc *StorageDriver) ListStorageSpaces(ctx context.Context, f []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	bodyStr, _ := json.Marshal(f)
 	_, respBody, err := nc.do(ctx, Action{"ListStorageSpaces", string(bodyStr)})
 	if err != nil {

diff --git a/pkg/storage/fs/nextcloud/nextcloud_test.go b/pkg/storage/fs/nextcloud/nextcloud_test.go
@@ -987,7 +987,7 @@ var _ = Describe("Nextcloud", func() {
 				},
 			}
 			filters := []*provider.ListStorageSpacesRequest_Filter{filter1, filter2, filter3}
-			spaces, err := nc.ListStorageSpaces(ctx, filters)
+			spaces, err := nc.ListStorageSpaces(ctx, filters, nil)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(len(spaces)).To(Equal(1))
 			// https://github.com/cs3org/go-cs3apis/blob/970eec3/cs3/storage/provider/v1beta1/resources.pb.go#L1341-L1366

diff --git a/pkg/storage/fs/owncloud/owncloud.go b/pkg/storage/fs/owncloud/owncloud.go
@@ -2230,7 +2230,7 @@ func (fs *ocfs) RestoreRecycleItem(ctx context.Context, basePath, key, relativeP
 	return fs.propagate(ctx, tgt)
 }
 
-func (fs *ocfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *ocfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	return nil, errtypes.NotSupported("list storage spaces")
 }
 

diff --git a/pkg/storage/fs/owncloudsql/owncloudsql.go b/pkg/storage/fs/owncloudsql/owncloudsql.go
@@ -1925,7 +1925,7 @@ func (fs *owncloudsqlfs) HashFile(path string) (string, string, string, error) {
 	}
 }
 
-func (fs *owncloudsqlfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *owncloudsqlfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	// TODO(corby): Implement
 	return nil, errtypes.NotSupported("list storage spaces")
 }

diff --git a/pkg/storage/fs/s3/s3.go b/pkg/storage/fs/s3/s3.go
@@ -677,7 +677,7 @@ func (fs *s3FS) RestoreRecycleItem(ctx context.Context, basePath, key, relativeP
 	return errtypes.NotSupported("restore recycle")
 }
 
-func (fs *s3FS) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *s3FS) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	return nil, errtypes.NotSupported("list storage spaces")
 }
 

diff --git a/pkg/storage/storage.go b/pkg/storage/storage.go
@@ -57,7 +57,7 @@ type FS interface {
 	Shutdown(ctx context.Context) error
 	SetArbitraryMetadata(ctx context.Context, ref *provider.Reference, md *provider.ArbitraryMetadata) error
 	UnsetArbitraryMetadata(ctx context.Context, ref *provider.Reference, keys []string) error
-	ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error)
+	ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, permissions map[string]struct{}) ([]*provider.StorageSpace, error)
 	CreateStorageSpace(ctx context.Context, req *provider.CreateStorageSpaceRequest) (*provider.CreateStorageSpaceResponse, error)
 	UpdateStorageSpace(ctx context.Context, req *provider.UpdateStorageSpaceRequest) (*provider.UpdateStorageSpaceResponse, error)
 }

diff --git a/pkg/storage/utils/decomposedfs/spaces.go b/pkg/storage/utils/decomposedfs/spaces.go
@@ -156,7 +156,7 @@ func (fs *Decomposedfs) CreateStorageSpace(ctx context.Context, req *provider.Cr
 // The list can be filtered by space type or space id.
 // Spaces are persisted with symlinks in /spaces/<type>/<spaceid> pointing to ../../nodes/<nodeid>, the root node of the space
 // The spaceid is a concatenation of storageid + "!" + nodeid
-func (fs *Decomposedfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *Decomposedfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, permissions map[string]struct{}) ([]*provider.StorageSpace, error) {
 	// TODO check filters
 
 	// TODO when a space symlink is broken delete the space for cleanup
@@ -226,7 +226,7 @@ func (fs *Decomposedfs) ListStorageSpaces(ctx context.Context, filter []*provide
 			}
 
 			// TODO apply more filters
-			space, err := fs.storageSpaceFromNode(ctx, n, matches[i], spaceType)
+			space, err := fs.storageSpaceFromNode(ctx, n, matches[i], spaceType, permissions)
 			if err != nil {
 				appctx.GetLogger(ctx).Error().Err(err).Interface("node", n).Msg("could not convert to storage space")
 				continue
@@ -318,7 +318,7 @@ func (fs *Decomposedfs) createStorageSpace(ctx context.Context, spaceType, nodeI
 	return nil
 }
 
-func (fs *Decomposedfs) storageSpaceFromNode(ctx context.Context, node *node.Node, nodePath, spaceType string) (*provider.StorageSpace, error) {
+func (fs *Decomposedfs) storageSpaceFromNode(ctx context.Context, node *node.Node, nodePath, spaceType string, permissions map[string]struct{}) (*provider.StorageSpace, error) {
 	owner, err := node.Owner()
 	if err != nil {
 		return nil, err
@@ -346,11 +346,12 @@ func (fs *Decomposedfs) storageSpaceFromNode(ctx context.Context, node *node.Nod
 	user := ctxpkg.ContextMustGetUser(ctx)
 
 	// filter out spaces user cannot access (currently based on stat permission)
+	_, canListAllSpaces := permissions["list-all-spaces"]
 	p, err := node.ReadUserPermissions(ctx, user)
 	if err != nil {
 		return nil, err
 	}
-	if !p.Stat {
+	if !(canListAllSpaces || p.Stat) {
 		return nil, errors.New("user is not allowed to Stat the space")
 	}
 

diff --git a/pkg/storage/utils/eosfs/eosfs.go b/pkg/storage/utils/eosfs/eosfs.go
@@ -1551,7 +1551,7 @@ func (fs *eosfs) RestoreRecycleItem(ctx context.Context, basePath, key, relative
 	return fs.c.RestoreDeletedEntry(ctx, auth, key)
 }
 
-func (fs *eosfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *eosfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	return nil, errtypes.NotSupported("list storage spaces")
 }
 

diff --git a/pkg/storage/utils/localfs/localfs.go b/pkg/storage/utils/localfs/localfs.go
@@ -1260,7 +1260,7 @@ func (fs *localfs) RestoreRecycleItem(ctx context.Context, basePath, key, relati
 	return fs.propagate(ctx, localRestorePath)
 }
 
-func (fs *localfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter) ([]*provider.StorageSpace, error) {
+func (fs *localfs) ListStorageSpaces(ctx context.Context, filter []*provider.ListStorageSpacesRequest_Filter, _ map[string]struct{}) ([]*provider.StorageSpace, error) {
 	return nil, errtypes.NotSupported("list storage spaces")
 }