[MM-1915] Add Deactivate Account - server side (#8699)

api4/user.go

@@ -713,6 +713,12 @@ func updateUserActive(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// if EnableUserDeactivation flag is disabled the user cannot deactivate himself.
+	if isSelfDeactive && !*c.App.GetConfig().TeamSettings.EnableUserDeactivation {
+		c.Err = model.NewAppError("updateUserActive", "api.user.update_active.not_enable.app_error", nil, "userId="+c.Params.UserId, http.StatusUnauthorized)
+		return
+	}
+
 	var user *model.User
 	var err *model.AppError
 
@@ -725,6 +731,13 @@ func updateUserActive(c *Context, w http.ResponseWriter, r *http.Request) {
 		c.Err = err
 	} else {
 		c.LogAuditWithUserId(user.Id, fmt.Sprintf("active=%v", active))
+		if isSelfDeactive {
+			c.App.Go(func() {
+				if err = c.App.SendDeactivateAccountEmail(user.Email, user.Locale, c.App.GetSiteURL()); err != nil {
+					mlog.Error(err.Error())
+				}
+			})
+		}
 		ReturnStatusOK(w)
 	}
 }

api4/user_test.go

@@ -1198,6 +1198,12 @@ func TestUpdateUserActive(t *testing.T) {
 	SystemAdminClient := th.SystemAdminClient
 	user := th.BasicUser
 
+	EnableUserDeactivation := th.App.Config().TeamSettings.EnableUserDeactivation
+	defer func() {
+		th.App.UpdateConfig(func(cfg *model.Config) { cfg.TeamSettings.EnableUserDeactivation = EnableUserDeactivation })
+	}()
+
+	th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.EnableUserDeactivation = true })
 	pass, resp := Client.UpdateUserActive(user.Id, false)
 	CheckNoError(t, resp)
 
@@ -1205,6 +1211,15 @@ func TestUpdateUserActive(t *testing.T) {
 		t.Fatal("should have returned true")
 	}
 
+	th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.EnableUserDeactivation = false })
+	pass, resp = Client.UpdateUserActive(user.Id, false)
+	CheckUnauthorizedStatus(t, resp)
+
+	if pass {
+		t.Fatal("should have returned false")
+	}
+
+	th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.EnableUserDeactivation = true })
 	pass, resp = Client.UpdateUserActive(user.Id, false)
 	CheckUnauthorizedStatus(t, resp)