view mod_auth_ha1/README.markdown @ 5285:8e1f1eb00b58

mod_sasl2_fast: Fix harmless off-by-one error (invalidates existing tokens!) Problem: This was causing the key to become "<token>--cur" instead of the expected "<token>-cur". As the same key was used by the code to both set and get, it still worked. Rationale for change: Although it worked, it's unintended, inconsistent and messy. It increases the chances of future bugs due to the unexpected format. Side-effects of change: Existing '--cur' entries will not be checked after this change, and therefore existing FAST clients will fail to authenticate until they attempt password auth and obtain a new FAST token. Existing '--cur' entries in storage will not be cleaned up by this commit, but this is considered a minor issue, and okay for the relatively few FAST deployments.
author Matthew Wild <mwild1@gmail.com>
date Wed, 29 Mar 2023 16:12:15 +0100
parents 4d73a1a6ba68
children
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---
labels:
- 'Stage-Beta'
- 'Type-Auth'
summary: |
    Authentication module for 'HA1' hashed credentials in a text file, as
    used by reTurnServer
...

Introduction
============

This module authenticates users against hashed credentials stored in a
plain text file. The format is the same as that used by reTurnServer.

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

  Name              Default    Description
  ----------------- ---------- ---------------------------------
  auth\_ha1\_file   auth.txt   Path to the authentication file

Prosody reads the auth file at startup and on reload (e.g. SIGHUP).

File Format
===========

The file format is text, with one user per line. Each line is broken
into four fields separated by colons (':'):

    username:ha1:host:status

  Field      Description
  ---------- ----------------------------------------------------------------------------------
  username   The user's login name
  ha1        An MD5 hash of "username:host:password"
  host       The XMPP hostname
  status     The status of the account. Prosody expects this to be just the text "authorized"

More info can be found
[here](https://github.com/resiprocate/resiprocate/blob/master/reTurn/users.txt).

Example
-------

    john:2a236a1a68765361c64da3b502d4e71c:example.com:authorized
    mary:4ed7cf9cbe81e02dbfb814de6f84edf1:example.com:authorized
    charlie:83002e42eb4515ec0070489339f2114c:example.org:authorized

Constructing the hashes can be done manually using any MD5 utility, such
as md5sum. For example the user 'john' has the password 'hunter2', and
his hash can be calculated like this:

    echo -n "john:example.com:hunter2" | md5sum -

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

  ------ -------
  0.9    Works
  0.10   Works
  ------ -------