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POImplementation of sso with django auth. Is this safe?
 

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  1. POImplementation of sso with django auth. Is this safe?
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    <p>I'm trying to implement single sign-on using only django auth.</p> <p>Let's assume two django projects, on different sub-domains: site.com(auth) and app1.site.com(app1) The auth table in site.com is master. site.com handles: login, logout, account registration, etc.</p> <p>site.com sets SESSION_COOKIE_DOMAIN to .site.com to allow it to be read by subdomains</p> <p>app1 will have login_url set to a view in the app1 project, which does the following:</p> <ul> <li>retrieves site.com's session_id value(from cookie)</li> <li>validates session_id by making a request to: site.com/validate/[session_id]/</li> <li>If False, redirects to site.com/login?next=[...]</li> <li>If True, request user data to: site.com/attributes/[session_id]/</li> <li>site.com/attributes/ delivers a dictionary with all the User values, encrypted using a shared SSO_KEY(encryption done the same way django encodes and decodes session_id)</li> </ul> <p>Now, app1 has a model SSO_User which has two fields, a foreign key to User model and an integer field. The SSO_User models links local auth User to the id of master auth table.</p> <p>Using the id retrieved from site.com, we check SSO_User for existing local user, if true we simply update the values and login; if non existing, we create the user and SSO_User and login.</p> <p>app1(or any other sub-domain) can keep their own profile information, without interfering with anything.</p> <p>It seems simple to implement and safe, but before implementing I wanted some opinions. What do you think?</p>
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