feat(admin): enable multi-users (#67)

* feat(userstore): support ListUsers

* feat(userstore): support del users

* feat(multiusers): support list users and delete user apis

* feat(client/web): add new apis to web client

* fix(ui/panes): move each pane out of the container

* feat(ui): add admin pane

* feat(users): support force set password api

* feat(ui/admin-pane): add functions to admin pane

* feat(users): support self API and move uploading folder to home

* fix(users): remove home folder when deleting user

* fix(ui): remove useless function

* feat(ui/panes): hide admin menu if user is not admin

* fix(server/files): list home path is incorrect

* fix(server): 1.listHome return incorrect cwd 2.addUser init folder with incorrect uid 3.check ns before using

* test(server): add regression test cases

* test(users, files): add e2e test for concurrent operations

* fix(test): clean ups

src/kvstore/boltdbpvd/provider.go

@@ -72,6 +72,18 @@ func (bp *BoltPvd) DelNamespace(nsName string) error {
 	})
 }
 
+func (bp *BoltPvd) HasNamespace(nsName string) bool {
+	err := bp.db.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(nsName))
+		if b == nil {
+			return ErrBucketNotFound
+		}
+		return nil
+	})
+
+	return err == nil
+}
+
 func (bp *BoltPvd) Close() error {
 	return bp.db.Close()
 }

src/kvstore/kvstore_interface.go

@@ -8,6 +8,7 @@ var ErrNoLock = errors.New("no lock to unlock")
 type IKVStore interface {
 	AddNamespace(nsName string) error
 	DelNamespace(nsName string) error
+	HasNamespace(nsName string) bool
 	GetBool(key string) (bool, bool)
 	GetBoolIn(ns, key string) (bool, bool)
 	SetBool(key string, val bool) error