Opauth is a multi-provider authentication framework for PHP, inspired by OmniAuth for Ruby.

Opauth enables PHP applications to do user authentication with ease.

Try out Opauth for yourself at http://opauth.org

What is Opauth?

Opauth provides a standardized method for PHP applications to interface with authentication providers.

Opauth as a framework provides a set of API that allows developers to create strategies that work in a predictable manner across PHP frameworks and applications.

Opauth works well with other PHP applications & frameworks. It is currently supported on:

• vanilla (plain) PHP applications (of course)
• CakePHP (maintained by uzyn)
• CodeIgniter (maintained by destinomultimedia)
• CodeIgniter (maintained by mcatm)
• FuelPHP (maintained by andreoav)
• [PrestaShop] (https://github.com/Onasusweb/PrestaShop-Opauth) (maintained by [Onasusweb] (https://github.com/Onasusweb))
• Silex (maintained by icehero)
• Yii Framework (maintained by kahwee)
• Zend Framework 2 (maintained by lorenzoferrarajr)
• and more to come.

If your PHP framework of choice is not yet listed, you can still use Opauth like you would a normal PHP component (class).

Quick start

Guide on how to run the bundled example.

1. Set DocumentRoot of your web server to example/.
   (Opauth can be instantiated in your own PHP app, but we will leave that out of this quick start guide)

2. Configure Opauth.

   First, make a copy of opauth config's file by copying or renaming
   opauth.conf.php.default to opauth.conf.php.

   Open up opauth.conf.php and make the necessary changes.

3. Install some Opauth strategies.
   Place the strategy files in lib/Opauth/Strategy/.

   For this example, we recommend that you start with Opauth-Facebook:

   i. Download the strategy files and place them at lib/Opauth/Strategy/Facebook/.

   ii. Follow the steps at Opauth-Facebook's README to set up your Faceobok app.

   iii. Add the following at opauth.conf.php under Strategy as such:

<?php
'Strategy' => array(  
    // Define strategies here.

    'Facebook' => array(
        'app_id' => 'YOUR APP ID',
        'app_secret' => 'YOUR APP SECRET'
    ),
);

Finally, send user to http://localhost/facebook to authenticate.

Check out the wiki for more in-depth details, especially on how to use Opauth with your own PHP application.

Available strategies

A strategy is a set of instructions that interfaces with respective authentication providers and relays it back to Opauth.

Provider-specific:

Strategy	Maintained by
Bitbucket	fancyguy
Disqus	rasa
Do	arbales
Facebook	uzyn
Flickr	pocket7878
Foursquare	pocket7878
GitHub	uzyn
Google	uzyn
Instagram	muhdazrain
LinkedIn	uzyn
(Windows) Live	uzyn
mixi	ritou
OpenID	uzyn
PayPal	24hours
Sina Weibo (新浪微博)	dgrabla
Twitter	uzyn
VKontakte	dgrabla
Yahoo! Japan (YConnect)	ritou

Generic strategy: OAuth

See wiki's list of strategies for an updated list of Opauth strategies or to make requests.
Refer also to strategy contribution guide if you would like to contribute a strategy.

Requirements

PHP 5 (>= 5.2)
with allow_url_fopen enabled

Contribute

Opauth needs your contributions, especially the following:

• More strategies
  Refer to wiki for contribution guide and inform us when your work is ready.

• Plugins for more PHP frameworks and CMSes
  eg. Symfony, Laravel, WordPress, Drupal, etc.

• Guides & tutorials
  On how to implement Opauth on CakePHP app, etc.

Issues & questions

• Discussion group: Google Groups
  Primary channel for support, especially usage questions.
• Issues: Github Issues
• Twitter: @uzyn
• Email me: chua@uzyn.com
• IRC: #opauth on Freenode

Used Opauth in your project? Let us know!

Changelog

####v0.4.3 (10 January 2013)

• Fixed a serverPost() bug where user-supplied options were not applied correctly. (thanks @ritou #26)

####v0.4.2 (28 August 2012)

• Fix session to check for session_id() instead of $_SESSION (thanks @sirikkoster #20)

####v0.4.1 (22 July 2012)

• Not starting session if session is already started. (thanks @Claymm)
• Fixed incorrect error message. (thanks @Claymm)
• Removed @ for file_get_contents. (thanks @Takehiro-Adachi)

####v0.4.0 (10 June 2012)

• mapProfile() and clientGet() for OpauthStrategy class.

####v0.3.0 (30 May 2012)

• Some unit testing
• More consistent naming of Strategy's internal properties
• Smarter loading of strategy, able to make a few guesses on where the class file might be at.

####v0.2.0 (23 May 2012)

• Opauth is now Composer compatible and listed on Packagist
  • Opauth now supports autoloaders
  • If a strategy is not autoloaded, Opauth falls back and searches for it at strategy_dir defined in config.
• Class name for strategy Foo should now be FooStrategy instead of Foo.
  • This is to reduce the likelihood of class name collision due to Opauth not requiring the use of namespace.
  • v0.1.0-type class name, ie. Foo, still works, but is now deprecated.

####v0.1.0 (22 May 2012)

• Initial release

License

The MIT License
Copyright © 2012-2013 U-Zyn Chua (http://uzyn.com)

Consultation

U-Zyn Chua is a Principal Consultant at Zynesis Consulting.
Looking for PHP web development solutions or consultation? Drop me a mail.