Whitelist multiple email domains

You might want to test my solution here:
https://eval.in/398734

Here is the code:

<?php
// Test email

$email = '[email protected]';

if (isValidEmailPattern($email))
  print "VALID";
else
  print "INVALID";

// Validates if the email ends with the allowed pattern
function isValidEmailPattern($email) {
  $patterns = array('@yahoo.com','@gmail.com','@hotmail.com');

  foreach($patterns as $pattern) {
    if (endsWith($email, $pattern)) {
      return true;
    }
  }

  return false;
}

// Does the haystack ends with needle ?
function endsWith($haystack, $needle) {
    // search forward starting from end minus needle length characters
    return $needle === "" || (($temp = strlen($haystack) - strlen($needle)) >= 0 && strpos($haystack, $needle, $temp) !== FALSE);
}

You need to remove the wp_safe_redirect call from the loop, or else it will always be called, since there’s no way a single address can match on all domains. Also better to look the whitelisted domain from the end rather than the beginning.

Here’s my crack at it:
https://gist.github.com/brocheafoin/9bf171cca8675d75c61f

Sorry for the cryptic “if” statement. Basically checks that the domain is at the absolute end of the supplied email address. Not sure how much sanitization has been done by the plugin by then, so this may fail for a myriad of reasons, not the least that I haven’t tested this code at all.

Thanks for the suggestions! Unfortunately, neither works.

But since this does….

add_action('um_before_new_user_register', 'require_google_email_for_signup');
function require_google_email_for_signup( $args ) {
	extract($args);
	if ( !strstr( $user_email, '@gmail.com' ) )
		exit( wp_redirect( add_query_arg('err', 'you_must_have_googlemail') ) );
}

…the problem is really in finding something that works with the array of domain names, and sanitization shouldn’t be much of an issue.

…the problem is really in finding something that works with the array of domain names

That’s the problem both of us were tackling. Maxime gave you generic functions you could use in your validation. I tried to give you code you could copy/paste but without testing it, that was bound to fail.

I’ve installed the plugin, tested and corrected my code. Should work now. The Gist is updated.

Yes! that one works. Thank you!

Glad this works for you!

Can this functionality (whitelisting email domain) be added to the plugin?

And in the meantime… Where can I put the code above?

Add the code to theme’s functions.php for example.

Thanks

Something seems to have changed and this bit of code no longer works. Both WordPress and Ultimate Member have recently been updated and I see in the WordPress change log that user registration changes were made. Any suggestions for how to make this work again?

I see you have posted on our site forum so will continue this there. Thanks ??

Is there a working solution for “whitelisting a domain” (trick/code/functionality) yet?

I want to use it as an intranet solution so only employees can register and login.