view mod_block_registrations/README.markdown @ 5356:959dc350f2ad

mod_http_oauth2: Declare https as required of URIs in schema If util.jsonschema happens to gain support for 'pattern' (regular expression validation) then this would be picked up. Until then, declarative annotations are nice.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Apr 2023 14:06:41 +0200
parents 9b43b7fc3558
children a58ba20b3a71
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Introduction
============

On a server with public registration it is usually desirable to prevent
registration of certain "reserved" accounts, such as "admin".

This plugin allows you to reserve individual usernames, or those
matching certain patterns. It also allows you to ensure that usernames
conform to a certain pattern.

Configuration
=============

Enable the module as any other:

    modules_enabled = {
      "block_registrations";
    }

You can then set some options to configure your desired policy:

  Option                           Default         Description
  -------------------------------- --------------- -------------------------------------------------------------------------------------------------------------------------------------------------
  block\_registrations\_users      `{ "admin" }`   A list of reserved usernames
  block\_registrations\_matching   `{ }`           A list of [Lua patterns](http://www.lua.org/manual/5.1/manual.html#5.4.1) matching reserved usernames (slower than block\_registrations\_users)
  block\_registrations\_require    `nil`           A pattern that registered user accounts MUST match to be allowed

Some examples:

    block_registrations_users = { "admin", "root", "xmpp" }
    block_registrations_matching = {
      "master$" -- matches anything ending with master: postmaster, hostmaster, webmaster, etc.
    }
    block_registrations_require = "^[a-zA-Z0-9_.-]+$" -- Allow only simple ASCII characters in usernames

Compatibility
=============

  ----- -------------
  0.9   Works
  0.8   Should work
  ----- -------------