'login_url' filter issue with 'home_url()'

[Joseph C Lawrence]

Hi

I have function making use of the 'login_url' filter, to use a custom user login page for sites on my network. In it I return a new login URL that I generate using the 'home_url()' function, since I determined that to be the best function to use to return the correctly mapped domain for a given site.

It doesn't work, however. My 'login_url' filter function works, since if I set it manually to another page on the site, or to google.com or something it works fine. It seems that I cannot properly use 'home_url()' (or 'site_url()' for that matter) on mapped domains when using Mercator. The function works fine for subdomains on my main network domain, just not for mapped domains.

Any ideas? Thanks.

[Ryan McCue]

It seems that I cannot properly use 'home_url()' (or 'site_url()' for that matter) on mapped domains when using Mercator.

I'm not sure exactly what the issue is here? Can you post the relevant part of your code (including the add_filter call, as well as the expected/actual output of the filter?

[Joseph C Lawrence]

Thanks for the reply. Here is the code:

function health_login_url( $login_url, $redirect ){
    return home_url('/login');
}
add_filter( 'login_url', 'health_login_url', 10, 2);

The expected output/effect is for the user to be directed to the /login page of the site they are on, when usually they would have been directed to /wp-login.php. This works as expected on any site where it is just a subdomain on the main network domain (e.g. subdom.networkdom.com), but does not work if there is a mapped domain (e.g. mappeddomain.com, which is mapped to subdom2.networkdom.com). The function itself works, since if I use:

function health_login_url( $login_url, $redirect ) {
    return 'http://google.com';
}
add_filter( 'login_url', 'health_login_url', 10, 2);

for example, then when a user would usually get directed to /wp-login.php, they would instead get directed to google.com. This means it must be something about the combination of using this filter, with Mercator active, on a site with a mapped domain. I have also tried site_url(), and get_home_url() and get_site_url(), but none of them work in this instance.

Does that make sense? Let me know if you need any other details. Thanks.

[Joseph C Lawrence]

Any ideas @rmccue ?

[Joseph C Lawrence]

Or if no ideas on how to solve this issue exactly, do you have any thoughts on any other Wordpress functions I could use to get the correct site URL whilst using the login_url filter?

I could imagine many people using this plugin might also want to use the login_url filter, to create custom login pages...

Thanks

[Joseph C Lawrence]

Hi @rmccue I'm not expecting direct support, but could you let me know if you are unable to look at this at all, so I can decide whether or not to pursue other avenues? Thank you.

[Ryan McCue]

@josephclawrence Sorry for the late reply here, totally forgot!

I tried this locally, and it was working for me when I dump out wp_login_url() on the frontend. I can't see any reason it wouldn't work either; is there a specific place you're seeing this not work? Any other details that might help?

[Seth Carstens]

@josephclawrence I think the updates I made in our fork (and pending pull request to official mercator) might have fixed the issue with your filter. I appled your filter after the sunrise config and it properly changed the "login url" that comes built into the wordpress core "meta" widget.

[Joseph C Lawrence]

Thanks Seth, that's great news. I will have a look at this early 2016 :)

On Wed, Dec 9, 2015 at 12:35 AM, Seth Carstens [e-mail]
wrote:

@josephclawrence https://github.com/josephclawrence I think the updates
I made in our fork (and pending pull request to official mercator) might
have fixed the issue with your filter. I appled your filter after the
sunrise config and it properly changed the "login url" that comes built
into the wordpress core "meta" widget.

[image: login-filter-working-mercator]
https://cloud.githubusercontent.com/assets/1483300/11670824/4f235c0e-9dc1-11e5-979d-101147d875d8.png

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