Tokenauth is a project mainly written in PHP, based on the GPL-2.0 license.
Drupal module for URL-based user authentication. Working toward 7.x release.
$Id: README.txt,v 1.3 2008/05/27 21:28:03 weitzman Exp $
DESCRIPTION Enable feed readers and other simple clients to see certain private pages by providing an authentication token.
USAGE If you put token=x on the querystring and x is a valid token, then an anonymous user will be authenticated as the user who owns the token. You may learn a user's token by clicking on the tab on the user's profile page.
TODO expire tokens after x days - http://drupal.org/node/97820 start changing links around the site so they have user's token appended automatically use the token in other contexts like inbound email (see mailhandler.module)