How can I create a single log-in and profile for a network of three sites using Django?

How can I create a single log-in and profile for a network of three sites using Django?

I have a network of three sites and instead of having the user create a profile at each of the three sites, I'd like the user开发者_JAVA技巧 to only need to register one time, and then be able to use all three.

Is there an elegant solution to this problem?

Let the sites share the databases. Hence they will have a common user table.

Take a look at the django sites framework: http://docs.djangoproject.com/en/dev/ref/contrib/sites/

Depends on your server(s).

Do all the sites have access to the same DB? Then use dcrodjer's answer.

If not, you can implement a OAuth style Single Signon Service, that the other sites authenticate against.

Ex: site1.example.com site2.example.com site3.example.com siteN.example.com

Would auth against oauth.example.com

If you can put those three sites into subdomains of a single domain, then I'm almost sure you can stick to what Django offers. What I'm writing about is something like this:

site1.mydomain.com site2.mydomain.com site3.mydomain.com

-- where login is implemented at mydomain.com.

Basically, mydomain.com should serve a small Django page that implements only the login form and maintains session for ".mydomain.com" domain (note the leading dot - it's required for the session to propagate to site1..3 subdomains). So if you log into mydomain.com, you're effectively logged into all three subsites.

And the easiest way to share server-side auth and session data is to make ubsites 1,2,3 use two databases, one small database shared with mydomain.com for auth and session data, and the other one specific to given site.