Comments on: WordPress MU Domain Mapping 0.5

By: R McKenzie

R McKenzie — Tue, 16 Mar 2010 20:11:48 +0000

Hi Donncha,
Under “Super Admin > Domain Mapping” I have two options.

CHECKED > Permanent redirect. (better for your blogger’s pagerank)
UN-CHECKED > Redirect administration pages to original blog’s domain

If I remember correctly, I tested both options under .51, without luck.

If we could get one of the above users to respond (or you could go into the WPMU forums), we could get someone who has the problem currently, and try running with a simple debug output rather than redirect, perhaps that would save you some time?

I’ll look for a backup as well, and try loading that onto a VM.

By: Donncha

Donncha — Tue, 16 Mar 2010 19:17:44 +0000

@R McKenzie: No, that’s it. I still can’t replicate the problem myself. It’s bizarre.

On your new install do you have the “Redirect administration pages to original blog’s domain” option checked on the domain mapping site admin page?

The gotoadmin url is generated when that’s unchecked.

By: R McKenzie

R McKenzie — Tue, 16 Mar 2010 19:12:49 +0000

Donncha, the problem existed only on the “mapped” domains (not the original site, which was accessible without a mapped domain). Is this the type of answer you were looking for, or did I misunderstand?

By: Donncha

Donncha — Tue, 16 Mar 2010 19:06:18 +0000

@R McKenzie: Do you remember if the “dm_gotoadmin” url was on the mapped domain or the original MU blog? It’s supposed to be on the MU domain mapped blog.

By: Donncha

Donncha — Tue, 16 Mar 2010 18:45:02 +0000

Oh well, just trying to exclude all possibilities.

error_log is a standard php command, and wp_mail() has the same parameters as the mail() commands. Use Google to find the php manual entries for them.

By: R McKenzie

R McKenzie — Tue, 16 Mar 2010 18:15:11 +0000

Absolutely, positively not — no changes whatsoever (and if I had, I would have figured it out in the many *hours* of testing that I had done to try and get to the bottom of this).

I was using the same browser/workstation/configuration as was working find without domain-mapping enabled. Using the same configuration as I have now with v3 beta, that works just fine.

The problem is definitely not on the client side, I can assure you (based on hours of testing parallel WP setups). You may want to read up to my longer post above, for a quick overview, as well.

By: Donncha

Donncha — Tue, 16 Mar 2010 17:59:25 +0000

@R McKenzie: Yeah, you’re supposed to be logged in when you get to the gotoadmin url. That’s what makes it so hard to debug. Could be some browser settings perhaps. Did you change any security settings? Maybe cookies security settings?

By: R McKenzie

R McKenzie — Tue, 16 Mar 2010 17:47:00 +0000

In that case, my guess is that there is an issue with reading the cookie on the user’s system, or in matching them to whatever you’re querying based on the cookie. Since in all cases, when I had the issue, I was logged-in / had logged-in, using valid credentials.

By: Donncha

Donncha — Tue, 16 Mar 2010 17:34:28 +0000

So if you’re having problems with gotoadmin not redirecting it’s more than likely because you’re not logged in.

I can’t replicate the problem on my test server but start debugging in the redirect_to_admin() function in domain_mapping.php, and look for “gotoadmin” and debug the functions that use that.

By: R McKenzie

R McKenzie — Tue, 16 Mar 2010 17:19:45 +0000

@Donncha,
Thank you for the reply. Coming from you, as both the author and very experienced WP developer, perhaps this isn’t the best “first project” for me to delve into WP/PHP; particularly in consideration for not having an install where I can replicate this at present.

I was hoping this functionality would be intrinsic in the WP v3.0 “Multi-Site Network” feature; however, it doesn’t seem to be the case. I’m not sure why not, it seems to be a *very* fundamental component of MU/MS.