Disable primary domain check per page

The best way to accomplish that is ensure the main network is forced to run under SSL in your web server config.

Hi Ron, I really appreciate your reply and sorry I’ve taken so long to get back to you. I am still trying to resolve this issue. At the moment I’m more or less circumventing it.

Preferred Solution:
In short, I need to “Disable primary domain check.” only for specific pages that I want to serve on the secure sub-domain OR enable primary domain check only for all HTTP (non-HTTPS) requests.

Current “not-so-great” Solution:
Hopefully my live example will help clarify the issue. For the moment, I have “Disable primary domain check.” set to true. This allows us to access both https://golfglengarry.com AND https://glengarry.rtphq.com. I then use the plugin “WordPress HTTPS (SSL)” to do a few things:

1. Force SSL on all admin pages
2. Force any pages tagged as secure on golfglengarry.com to glengarry.rtphq.com
3. Force a hard-coded list of shopping cart pages to be tagged as secure (as you can see if go to https://golfglengarry.com/catalogue/ it will auto-redirect you to https://glengarry.rtphq.com/catalogue/)
4. Forces unsecure pages to use HTTP, but the page remains on the subdomain instead of forcing back to Primary domain.

In Summary:
At this point I can add canonical urls to each page that point at the Primary domain to help prevent any duplicate content issues, but then I still have the problem with our users visiting the site, checking out the online store, then returning to a non-secure page served on the sub-domain. It would be really nice if we could get there users looking at the Primary domain whenever possible.

Let me know what you think! Thank you for your time!

Hi again. I’ve been at this all night and I think I might have a way to tighten up my current solution…

The goal is to prevent duplicate content and maximize the use of the mapped domain.

1. Anywhere on network – if HTTPS, add noindex/nofollow. To accomplish this I added to functions.php: if ($_SERVER['HTTPS'] = "on") { echo '<meta name="robots" content="noindex,nofollow,noodp,noydir">'; }

2. Replace all hrefs with Primary domain host
3. Ensure all cononical links reference Primary domain

I know a few ways that I can implement 2 and 3 but I can’t figure out how to find the mapped primary domain from with functions.php or my own plugin/extension. I can’t seem to track down a built-in function to accomplish this. Is there one? Or must I manually query the db?

Something like this, echo get_option( 'siteurl' ); that returns the mapped url instead of original.

Thanks!

Hooray. I’m getting close. I was able to find a way to grab the mapped domain by modifying the code here (https://blog.ed.gs/2012/12/18/get-wordpress-domain-mapped-url/) to the following:

function get_domain_mapped_url( $custom_blog_id ) {
        // Enable WordPress DB connection
        global $wpdb;

        // To reduce the number of database queries, save the results the first time we encounter each blog ID.
        static $return_url = array();

        $wpdb->dmtable = $wpdb->base_prefix . 'domain_mapping';

        if ( !isset( $return_url[ $custom_blog_id ] ) ) {
                $s = $wpdb->suppress_errors();

                if ( get_site_option( 'dm_no_primary_domain' ) == 1 ) {
                        // get primary domain, if we don't have one then return original url.
                        $domain = $wpdb->get_var( "SELECT domain FROM {$wpdb->dmtable} WHERE blog_id = '{$custom_blog_id}' AND active = 1 LIMIT 1" );
                        if ( null == $domain ) {
                                $return_url[ $wpdb->blogid ] = untrailingslashit( get_site_url( $custom_blog_id ) );
                                return $return_url[ $custom_blog_id ];
                        }
                }

                $wpdb->suppress_errors( $s );

                $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "https://";
                if ( $domain ) {
                        $return_url[ $custom_blog_id ] = untrailingslashit( $protocol . $domain  );
                        $setting = $return_url[ $custom_blog_id ];
                } else {
                        $return_url[ $custom_blog_id ] = false;
                }
        } elseif ( $return_url[ $custom_blog_id ] !== FALSE) {
                $setting = $return_url[ $custom_blog_id ];
        }

        return $setting;
}

$stid = get_current_blog_id();
$pri_dom = get_domain_mapped_url( $stid );

This works nice