Install OpenID | Clickpass Documentation

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Install OpenID

Installing OpenID

The first thing you will need to do to support Clickpass is to install an OpenID library and adapt your database to store user's OpenIDs

Adapting your database

Allowing a user to log in using OpenID means that you need to store an OpenID for that user which means that you're going to have to make space in your database for OpenIDs.

Add a new table to store OpenIDs

In theory you could store just one OpenID per user and add an extra column to your user table to store it. However, it's much better practice to assume that a user may want to use multiple OpenIDs to access their account with you and therefore to give those OpenIDs a table all to themselves.

Why a whole new table?

Allowing a user to store multiple OpenIDs gives them a secondary or backup way to access your site in the case that something is wrong with their first OpenID provider. They may use Clickpass most of the time but switch to Yahoo as a failover.

OpenID libraries

Listed below are OpenID libraries for most of the major languages. Install the library, get the basic example code working and then you can move on to actually logging users in and processing new signups.

	PHP JanRain PHP OpenID NetMesh InfoGrid LID PHP OpenID For PHP Library - PHP5 OpenID 2.0 compliant consumer *Framework plugins:* sfOpenIDPlugin - symfony plugin for OpenID CakePHP OpenID component - consumer
	Java Verisign Java OpenID library - joid NetMesh InfoGrid LID Java OpenID4Java, with OpenID Authentication 2.0 support. Developed by Sxip
	Ruby JanRain Ruby OpenID
	C# .net OpenID NerdBank ASP.NET OpenID control (uses JanRain) ExtremeSwank OpenID Consumer (Supports OpenID 1.1, 2.0, and extensions)
	Python JanRain Python OpenID *Framework plugins:* Django OpenID
	C++ libopkele C++ implementation
	Perl JanRain Perl OpenID Net::OpenID::Consumer NetMesh InfoGrid LID Perl OpenID4Perl, with OpenID Authentication 2.0 support. Developed by Sxip
	ColdFusion CFOpenID - Coldfusion OpenID Consumer library OpenID CFC - Consumer library.