Development goals

While sabre/dav has obtained a decent market share for CardDAV, CalDAV, and WebDAV servers, traditionally it's always been intended to be a development library.

Because of this goal, it always had a very high barrier to entry. We want to solve this problem and bring it to a bigger market with sabre/katana.

sabre/katana will provide two core features:

1. An installer.
2. An admin interface.

It's our goal to make the admin interface an independent component, so it can also be used for any other sabre/dav server.

Installer design goals

The installer needs to help with getting people started getting their server up and running. Traditionally it was only ever possible to set up sabre/dav by copying files, and you were even forced to manually run SQL queries.

The installer will now walk you through the steps, in a way so that it's doable on people just having access to a shared host with (god forbid) something like an FTP account.

Admin interface

We will also add an admin interface. This admin interface should be separable from the rest of the package.

• The admin interface should be 100% client side. PHP must not be used.
• It should be possible to deploy an admin interface on a static host, such as S3.
• The admin interface should be able to communicate with any sabre/dav server.
• The admin interface allows the admin to:
  • Manage users.
  • Manage address books.
  • Manage calendars.
  • Manage files.
• All of these management operations will be done via publicly documented standard sabre/dav APIs. If you use sabre/dav, you can implement the relevant API and take advantage.
• The admin interface should automatically hide features that are not available on the server or disabled via access control.
• The admin interface should show an overview of features that are and are not available on the server, so users know what they are missing.

Post 1.0 features:

• It should also be able to check basic sabre/dav version information and report vulnerabilities.
• Work in a "non-admin" mode, so users can manage their own calendars even if they don't have admin-related features.
• It should be tested with some non-sabre/dav-based servers.