# Should dots in regular expressions be allowed when configuring index-level permissions for a role? **URL:** \ **Category:** Search Guard\ **Created:** [July 24, 2018, 10:27am UTC](https://forum.search-guard.com/t/should-dots-in-regular-expressions-be-allowed-when-configuring-index-level-permissions-for-a-role/1036 "2018-07-24T10:27:41Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Tomoyuki](https://avatars.discourse-cdn.com/v4/letter/t/d9b06d/32.png) [@Tomoyuki](https://forum.search-guard.com/u/Tomoyuki)\ **Post date:** [July 24, 2018, 10:27am UTC](https://forum.search-guard.com/t/should-dots-in-regular-expressions-be-allowed-when-configuring-index-level-permissions-for-a-role/1036/1 "2018-07-24T10:27:41Z")
Regular expression is available for specifying index-level permissions for a role [from this view](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/views/edit.html). But, when setting a regular expression pattern including dots, the dots are replaced with ‘?’ in the method [submitAddIndex](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/controller.js#L382). Then, the pattern created after the replacement is not always a valid regular expression pattern. For example, when specifying ‘/._/’ for the index input, it is replaced with '/?_/’ after pushing the save button, where the pattern after the replacement is invalid. Can this be a bug? Can we use dots in regular expressions? How about validating regular expressions before submitting? Versions Elasticserch version: 6.3.1 SeachGuard ES plugin version: 6-6.3.1-22.3 Kibana version: 6.3.1 SearchGuard Kibana plugin version: 6.3.1-14-beta-1 ---
**Author:** ![jkressin](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.search-guard.com/jkressin/32/9_2.png) [@jkressin](https://forum.search-guard.com/u/jkressin)\ **Post date:** [July 24, 2018, 11:34am UTC](https://forum.search-guard.com/t/should-dots-in-regular-expressions-be-allowed-when-configuring-index-level-permissions-for-a-role/1036/2 "2018-07-24T11:34:25Z")
I believe this could indeed be a bug. Could you please post this issue on our GitHub Issue tracker: > **[Issues · floragunncom/search-guard-kibana-plugin](https://github.com/floragunncom/search-guard-kibana-plugin/issues)** > > This plugin for Kibana adds session management and multi tenancy to a Search Guard secured cluster. - Issues · floragunncom/search-guard-kibana-plugin Thanks! > **···** > > On Tuesday, July 24, 2018 at 10:57:04 AM UTC+2, Tomoyuki Saito wrote: > > > Regular expression is available for specifying index-level permissions for a role [from this view](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/views/edit.html). > > > > > > But, when setting a regular expression pattern including dots, the dots are replaced with ‘?’ in the method [submitAddIndex](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/controller.js#L382). > > > Then, the pattern created after the replacement is not always a valid regular expression pattern. > > > > > > For example, when specifying ‘/._/’ for the index input, it is replaced with '/?_/’ after pushing the save button, where the pattern after the replacement is invalid. > > > > > > Can this be a bug? > > > Can we use dots in regular expressions? > > > > > > How about validating regular expressions before submitting? > > > > > > Versions > > > > > > Elasticserch version: 6.3.1 > > > SeachGuard ES plugin version: 6-6.3.1-22.3 > > > Kibana version: 6.3.1 > > > SearchGuard Kibana plugin version: 6.3.1-14-beta-1 ---
**Author:** ![Tomoyuki](https://avatars.discourse-cdn.com/v4/letter/t/d9b06d/32.png) [@Tomoyuki](https://forum.search-guard.com/u/Tomoyuki)\ **Post date:** [July 24, 2018, 11:53am UTC](https://forum.search-guard.com/t/should-dots-in-regular-expressions-be-allowed-when-configuring-index-level-permissions-for-a-role/1036/3 "2018-07-24T11:53:14Z")
Thank you for your attention and quick reply. Filed up an issue: [https://github.com/floragunncom/search-guard-kibana-plugin/issues/108](https://github.com/floragunncom/search-guard-kibana-plugin/issues/108) Thanks. > **···** > > On Tuesday, July 24, 2018 at 8:34:25 PM UTC+9, Jochen Kressin wrote: > > > I believe this could indeed be a bug. Could you please post this issue on our GitHub Issue tracker: > > > [https://github.com/floragunncom/search-guard-kibana-plugin/issues](https://github.com/floragunncom/search-guard-kibana-plugin/issues) > > > > > > Thanks! > > > > On Tuesday, July 24, 2018 at 10:57:04 AM UTC+2, Tomoyuki Saito wrote: > > > > > Regular expression is available for specifying index-level permissions for a role [from this view](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/views/edit.html). > > > > > > > > But, when setting a regular expression pattern including dots, the dots are replaced with ‘?’ in the method [submitAddIndex](https://github.com/floragunncom/search-guard-kibana-plugin/blob/v6.3.1-14-beta-1/public/apps/configuration/sections/roles/controller.js#L382). > > > > Then, the pattern created after the replacement is not always a valid regular expression pattern. > > > > > > > > For example, when specifying ‘/._/’ for the index input, it is replaced with '/?_/’ after pushing the save button, where the pattern after the replacement is invalid. > > > > > > > > Can this be a bug? > > > > Can we use dots in regular expressions? > > > > > > > > How about validating regular expressions before submitting? > > > > > > > > Versions > > > > > > > > Elasticserch version: 6.3.1 > > > > SeachGuard ES plugin version: 6-6.3.1-22.3 > > > > Kibana version: 6.3.1 > > > > SearchGuard Kibana plugin version: 6.3.1-14-beta-1