README

Lightweight PHP5 library for easy OpenID authentication.

• Version....: 1.1.2 ⏬ ( see the change log for details )
• Released on: January 15, 2013
• Source code: Gitorious 🔗   GitHub
• Homepage...: http://code.google.com/p/lightopenid/
• Author.....: Mewp (http://mewp.s4w.pl/)

Quick start

Sign-on with OpenID in just 2 steps:

1. Authentication with the provider:

   $openid = new LightOpenID('my-host.example.org');
   
   $openid->identity = 'ID supplied by user';
   
   header('Location: ' . $openid->authUrl());

2. Verification:

   $openid = new LightOpenID('my-host.example.org');
   
   if ($openid->mode) {
     echo $openid->validate() ? 'Logged in.' : 'Failed!';
   }

Support for AX and SREG extensions:

To use the AX and SREG extensions, specify $openid->required and/or $openid->optional before calling $openid->authUrl(). These are arrays, with values being AX schema paths (the 'path' part of the URL). For example:

$openid->required = array('namePerson/friendly', 'contact/email');
$openid->optional = array('namePerson/first');

Note that if the server supports only SREG or OpenID 1.1, these are automaticaly mapped to SREG names. To get the values use:

$openid->getAttributes();

For more information see USAGE.md.

Requirements

This library requires PHP >= 5.1.2 with cURL or HTTP/HTTPS stream wrappers enabled.

Features

• Easy to use - you can code a functional client in less than ten lines of code.
• Uses cURL if avaiable, PHP-streams otherwise.
• Supports both OpenID 1.1 and 2.0.
• Supports Yadis discovery.
• Supports only stateless/dumb protocol.
• Works with PHP >= 5.
• Generates no errors with error_reporting(E_ALL | E_STRICT).

Links

• JavaScript OpenID Selector - simple user interface that can be used with LightOpenID.
• HybridAuth - easy to install and use social sign on PHP library, which uses LightOpenID.
• OpenID Dev Specifications - documentation for the OpenID extensions and related topics.

License

LightOpenID is an open source software available under the MIT License.