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Users: Add 'illegal_user_logins' filter to allow certain usernames to be blacklisted.

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Props danielbachhuber, chriscct7, crazycoolcam, SergeyBiryukov.
Fixes #27317.

git-svn-id: https://develop.svn.wordpress.org/trunk@35189 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov
2015-10-15 05:42:05 +00:00
parent 742082c042
commit e675e2ccf0
4 changed files with 78 additions and 2 deletions
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11
src/wp-includes/user-functions.php
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@@ -1315,6 +1315,17 @@ function wp_insert_user( $userdata ) {
return new WP_Error( 'existing_user_login', __( 'Sorry, that username already exists!' ) );
}
/**
* Filter the list of blacklisted usernames.
*
* @since 4.4.0
*
* @param array $usernames Array of blacklisted usernames.
*/
if ( in_array( $user_login, apply_filters( 'illegal_user_logins', array() ) ) ) {
return new WP_Error( 'illegal_user_login', __( 'Sorry, that username is not allowed.' ) );
}
/*
* If a nicename is provided, remove unsafe user characters before using it.
* Otherwise build a nicename from the user_login.