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<?php
//Based on https://thereforei.am/2011/03/15/how-to-allow-administrators-to-edit-users-in-a-wordpress-network/
function mc_admin_users_caps( $caps, $cap, $user_id, $args ){
foreach( $caps as $key => $capability ){
if( $capability != 'do_not_allow' )
continue;
switch( $cap ) {
case 'edit_user':
case 'edit_users':
$caps[$key] = 'edit_users';
break;
case 'delete_user':
case 'delete_users':
$caps[$key] = 'delete_users';
break;
case 'create_users':
$caps[$key] = $cap;
break;
}
}
return $caps;
}
add_filter( 'map_meta_cap', 'mc_admin_users_caps', 1, 4 );
remove_all_filters( 'enable_edit_any_user_configuration' );
add_filter( 'enable_edit_any_user_configuration', '__return_true');
/**
* Checks that both the editing user and the user being edited are
* members of the blog and prevents the super admin being edited.
*/
function mc_edit_permission_check() {
global $current_user;
$screen = get_current_screen();
get_currentuserinfo();
if( ! is_super_admin( $current_user->ID ) && in_array( $screen->base, array( 'user-edit', 'user-edit-network' ) ) ) { // editing a user profile
//get user ID from URL
$user_id = ( isset( $_GET['user_id'] ) ) ? $_GET['user_id'] : false;
if ( $user_id && is_super_admin( $user_id ) ) { // trying to edit a superadmin while less than a superadmin
wp_die( __( 'You do not have permission to edit this user.' ) );
} elseif ( ! ( is_user_member_of_blog( $user_id, get_current_blog_id() ) && is_user_member_of_blog( $current_user->ID, get_current_blog_id() ) )) { // editing user and edited user aren't members of the same blog
wp_die( __( 'You do not have permission to edit this user.' ) );
}
}
}
add_filter( 'admin_head', 'mc_edit_permission_check', 1, 4 );
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