Van Patten Media

Ensures logins are always done via SSL on a subdomain of the master domain, but that access to custom domains are always done over HTTP, to avoid certificate errors. For WordPress Multisite.
WordPress’ built-in <code>FORCE_SSL_LOGIN</code> and <code>FORCE_SSL_ADMIN</code> directives in <code>wp-config.php</code> work great, but are too restrictive in situations where you have custom domains — custom domains for which you cannot have SSL certificates. For sites on custom domains, we need to make sure that the login and admin access happens over the subdomain, which can be properly served over HTTPS.
<h4>What this Plugin does (incorporating Foolish Assumptions)</h4>
or, a readme you should read before implementing this plugin on your site.
This plugin filters the login, logout, home and admin URLs that WordPress uses to generate its internal links.
Why do we do this?
<h4>The Scenario</h4>
We have a WordPress Multisite network. Let’s call it <code>mynetwork.com</code>. We bought a fancy SSL wildcard certificate so we can offer <code>*.mynetwork.com</code> over a secure connection.
We’d very much like to use this secure connection for all logins, and for all admin access.
We also allow sites on this network to use a custom domain — like <code>demo-site.com</code>. We might be using <a href="https://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/" rel="ugc">WPMU Domain Mapping</a> to achieve this. These sites have two domains, then — <code>demo-site.com</code> and <code>demo-site.mynetwork.com</code>.
If we switch on <code>FORCE_SSL_LOGIN</code> or <code>FORCE_SSL_ADMIN</code>, we have a problem. When users go to <code>https://demo-site.com/wp-login.php</code>, they get a certificate error. We have a wildcard certificate for <code>*.mynetwork.com</code>, but we can’t possibly have a valid SSL certificate installed for every custom domain!
Instead, we want to force all login pages and admin pages to be:
<pre><code>https://demo-site.mynetwork.com/wp-admin/… </code></pre>
We want all regular access to be:
<pre><code>http://demo-site.com/… </code></pre>
This plugin facilitates that — rewriting the <code>wp-login</code> (including logout) and <code>wp-admin</code> URLs to the first example, and rewriting all the others to the second style.
<h4>Foolish Assumptions</h4>
This plugin makes some (foolish) assumptions about your multisite network. You must make sure that these assumptions are true for your site, or you will find that this plugin may have unintended consequences and break things that are difficult to fix without manually disabling the plugin.
<ol>
<li>
Your subdomains are in the format: <code>a.b</code>
<blockquote>
where <code>a</code> is, for example: <code>demo-site</code>. <code>b</code> is, for example: <code>mynetwork.com</code>. <code>a</code> must be a single domain component. (<code>a</code> can’t be, for example: <code>demo.site</code>)
</blockquote>
</li>
<li>
Your wildcard certificate is configured properly for:
<ul>
<li><code>*.mynetwork.com</code></li>
<li>your network site URL</li>
</ul>
So if your network site URL is <code>www.mynetwork.com</code>, your wildcard cert will be fine. If it is just <code>mynetwork.com</code>, you will need another cert to avoid errors when you go to <code>https://mynetwork.com/wp-admin</code>.)
</li>
<li>
Your site already has the custom domains working.
<ul>
<li>
I suggest the excellent <a href="https://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/" rel="ugc">WPMU Domain Mapping</a> for this.
<ul>
<li>Your web server also needs to be <a href="http://www.lampjunkie.com/2008/05/how-to-set-up-a-wildcard-catch-all-virtual-host-in-apache/" title="A tutorial on wildcard catch all hosting for Apache" rel="nofollow ugc">set up</a> to handle hosting a wildcard name virtual host. All of this is really part of the WPMU Domain Mapping set up, and not the set up for this plugin. I’m just, you know, mentioning it.</li>
</ul>
</li>
</ul>
</li>
<li>
You have the <code>FORCE_SSL_LOGIN</code> setting in <code>wp-config.php</code> true.
</li>
<li>
You have the <code>FORCE_SSL_ADMIN</code> setting in <code>wp-config.php</code> false. We’ll handle that — WordPress’ forcing of SSL admins will conflict with this plugin.
</li>
</ol>

SSL Subdomain for Multisite

Ensures logins are always done via SSL on a subdomain of the master domain, but access to custom domains are always over HTTP, to avoid cert errors.

Justin Fletcher

keycapability

The ‘Network Subsite User Registration’ (NSUR) plugin removes the WordPress Multisite restriction that registration is on the Network main site, subsite Administrators can now allow user registration for their site only.
WordPress Network (Multisite) installations by default only allow user registration for the whole Network, e.g. users can only register for the main site and not the other sites on the network. The ‘Network Subsite User Registration’ plugin allows local admins of sub-sites within the Network/Multisite the ability to enable user registration themselves for their site.
The role by default that a new user receives is ‘subscriber’, however, there is a setting which allows you to define a different initial role (per sub-site) that a user receives after registration.
@Developers – If you want to use your own template you can override the template used for the ../local-signup page by creating a template with the file ‘page-signup.php’ and add this to either the parent or child theme.
<h4>Plugin site</h4>
<a href="https://justinandco.com/plugins/network-subsite-user-registration/" rel="nofollow ugc">https://justinandco.com/plugins/network-subsite-user-registration/</a>
<h4>GitHub – Development</h4>
<a href="https://github.com/justinticktock/network-subsite-user-registration" rel="nofollow ugc">https://github.com/justinticktock/network-subsite-user-registration</a>

Network Subsite User Registration

This plug-in works great to handle a situation that Wordpress should just do out of the box.  I would be hard pressed to make multi-site usable without it.

So simple, but a huge time savings


Ideal for maintaining control over users.


Work as imagined

Allow the public to register user accounts on Subsites within a Network (MultiSite) installation.

SSL Subdomain for Multisite vs Network Subsite User Registration