Support SSL with different domain names, and sharing SSL domain

[reppep]

Admin-SSL supports different prefices for secure and insecure access.

For instance, all logged-in / wp-admin access for <​http://www.extrapepperoni.com/> is under <​https://secure.reppep.com/ep/>, and all admin access for <​http://www.mscrochety.com/> is under <​https://secure.reppep.com/mscrochety/>.

First, WordPress' built-in SSL features should support this configuration. It's not clear, but appears that the HTTP & HTTPS URLs must be the same, except the scheme, which prevents clean SSL for sites without an IP for each blog.

Second, WordPress MU should support this as well. Admin-SSL's WordPress MU support lacks the "Shared SSL" capability available for non-MU WordPress.

This would require a change to the way that SITE_URL and HOME_URL works, and would probably need a new SECURE_URL option in the database, as well as constant, and ability to set the location in the administration panel.

I'm happy to offer assistance for the coding of this feature - my experience re-writing Admin SSL tells me it is not easy getting WordPress to work like this.

BCG

​http://kerrins.co.uk/blog/admin-ssl/

this can be done using a plugin: site_url(), content_url(), login_url() and admin_url() all have filters in trunk, allowing you to override where they go.