Adding support for Client TLS

[mintsoft]

I've recently migrated to using Mutual TLS for my setup, which broke the roundcube addon. Looking at the logs it's because when roundcube would be logging in, it's not using a TLS certificate so Apache is rejecting the connection.

The only solution I can see for this is to extend this addon to support using TLS auth with its own certificate.

Still a WIP but feedback sought throughout.

[mintsoft]

I think this works but I've been unable to test as I can't get the JS in master to build at the moment and I've not had a chance to dig into what's going on:

ERROR in [eslint] 
/home/rob/nextcloud-roundcube/build/ts-types/app-config.ts
  21:1  error  Parsing error: The keyword 'export' is reserved

/home/rob/nextcloud-roundcube/src/AdminSettings.vue
  2:4  error  Parsing error: Unexpected character '@'

/home/rob/nextcloud-roundcube/src/App.vue
  2:4  error  Parsing error: Unexpected character '@'

/home/rob/nextcloud-roundcube/src/PersonalSettings.vue
  2:4  error  Parsing error: Unexpected character '@'

/home/rob/nextcloud-roundcube/src/RoundCubeWrapper.vue
  2:4  error  Parsing error: Unexpected character '@'

/home/rob/nextcloud-roundcube/src/RoundCubeWrapperRouteReactivity.vue
  2:4  error  Parsing error: Unexpected character '@'

/home/rob/nextcloud-roundcube/src/admin-settings.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/app.ts
  23:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/config.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/logger.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/personal-settings.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/roundcube.ts
  22:6  error  Parsing error: Unexpected token RoundCubeWindow

/home/rob/nextcloud-roundcube/src/router/router.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/toolkit/util/cloud-version-classes.ts
  20:1  error  Parsing error: The keyword 'const' is reserved

/home/rob/nextcloud-roundcube/src/toolkit/util/console.ts
  20:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/toolkit/util/dialog-confirm.ts
  20:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/toolkit/util/initial-state.ts
  22:1  error  Parsing error: The keyword 'import' is reserved

/home/rob/nextcloud-roundcube/src/toolkit/util/settings-sync.ts
  20:1  error  Parsing error: The keyword 'import' is reserved

✖ 18 problems (18 errors, 0 warnings)


webpack 5.104.1 compiled with 1 error in 5275 ms

[mintsoft]

Gave up with trying to fix the lint and commented it out of the build, but I have tested this with mTLS now and it does work as desired.