Example implementation of the OpenID Provider spec using Twisted.
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txOpenID (c) 2007-2008 Phil Christensen See LICENSE for details txOpenID is an implementation of the OpenID Identity Provider specification, written using Twisted Web and Divmod's Nevow. It reads authentication data and user web sessions out of a MySQL database using MySQLdb and Twisted Enterprise's adbapi layer. txOpenID currently supports version 1.1 of the OpenID specification. Requirements ------------ Python 2.5 Twisted 8.1.0 (Core, Web) Nevow 0.9.31 About OpenID ------------ (from http://en.wikipedia.org/wiki/OpenID) OpenID is a shared identity service, which allows Internet users to log on to many different web sites using a single digital identity, eliminating the need for a different user name and password for each site. OpenID is a decentralized, free and open standard that lets users control the amount of personal information they provide. Using OpenID-enabled sites, web users do not need to remember traditional items of identity such as username and password. Instead, they only need to be registered with any OpenID "identity provider" (IdP). Since OpenID is decentralized, any website can use OpenID as a way for users to sign in; OpenID does not require a centralized authority to confirm a user's digital identity. QuickStart ---------- These instructions assume you've unpacked the txOpenID distribution, and have changed to that directory. First create a MySQL database to store user account and session data: mysql -u root -p -e "CREATE DATABASE txopenid" mysql -u root -p -e "GRANT ALL ON txopenid.* TO txopendid@localhost \ IDENTIFIED BY 'txopenid'" mysql -u root -p -e "FLUSH PRIVILEGES" mysql -u root -p < docs/database-schema.mysql You'll also need to create a user account that will be your Single Sign-On by adding a new record to the 'user' table: mysql -u root -p -e "INSERT INTO user (username, first, last, crypt) \ VALUES ('user', 'Joe', 'User', ENCRYPT('mypassword'))" To setup a URL as an OpenID identifier, simply add the following tag to the page header: <link rel="openid.server" href="http://server.hostname.com:8888"> Finally, launch the authentication server: twistd -n openid -H server.hostname.com You should now be able to use your OpenID identifier to login to a compatible consumer. Keep in mind there are two different ways to authenticate to a OpenID provider: checkid_immediate This is used in AJAX-type scenarios, and will always return immediately. If setup is required (e.g., to login, or approve a new identity or trusted root), the particular ID consumer is responsible for opening a new window or frame to the ID server so you can validate the request. checkid_setup This method is used when it's not important for the user to stay on-site. They will be redirected to the ID server, and will have a chance to login or approve the request if necessary. Once that is complete, or if there is nothing required of the end user (e.g., they are logged in, and already trust the root and identity), the ID server will redirect back to the consumer's provided return_to URL.