<?php

/**

 * Users administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** WordPress Administration Bootstrap */

require_once( dirname( __FILE__ ) . '/admin.php' );

if ( ! current_user_can( 'list_users' ) )

$wp_list_table = _get_list_table('WP_Users_List_Table');

$pagenum = $wp_list_table->get_pagenum();

$title = __('Users');

$parent_file = 'users.php';

// contextual help - choose Help on the top right of admin panel to preview this.

get_current_screen()->add_help_tab( array(

	'id'      => 'overview',

	'title'   => __('Overview'),

	'content' => '<p>' . __('This screen lists all the existing users for your site. Each user has one of five defined roles as set by the site admin: Site Administrator, Editor, Author, Contributor, or Subscriber. Users with roles other than Administrator will see fewer options in the dashboard navigation when they are logged in, based on their role.') . '</p>' .

				 '<p>' . __('To add a new user for your site, click the Add New button at the top of the screen or Add New in the Users menu section.') . '</p>'

) ) ;

get_current_screen()->add_help_tab( array(

	'id'      => 'screen-display',

	'title'   => __('Screen Display'),

	'content' => '<p>' . __('You can customize the display of this screen in a number of ways:') . '</p>' .

					'<ul>' .

					'<li>' . __('You can hide/display columns based on your needs and decide how many users to list per screen using the Screen Options tab.') . '</li>' .

					'<li>' . __('You can filter the list of users by User Role using the text links in the upper left to show All, Administrator, Editor, Author, Contributor, or Subscriber. The default view is to show all users. Unused User Roles are not listed.') . '</li>' .

					'<li>' . __('You can view all posts made by a user by clicking on the number under the Posts column.') . '</li>' .

					'</ul>'

) );

$help = '<p>' . __('Hovering over a row in the users list will display action links that allow you to manage users. You can perform the following actions:') . '</p>' .

	'<ul>' .

	'<li>' . __('Edit takes you to the editable profile screen for that user. You can also reach that screen by clicking on the username.') . '</li>';

if ( is_multisite() )

else

$help .= '</ul>';

get_current_screen()->add_help_tab( array(

	'id'      => 'actions',

	'title'   => __('Actions'),

	'content' => $help,

) );

unset( $help );

get_current_screen()->set_help_sidebar(

    '<p><strong>' . __('For more information:') . '</strong></p>' .

);

if ( empty($_REQUEST) ) {

	$referer = '<input type="hidden" name="wp_http_referer" value="'. esc_attr( wp_unslash( $_SERVER['REQUEST_URI'] ) ) . '" />';

} elseif ( isset($_REQUEST['wp_http_referer']) ) {

	$redirect = remove_query_arg(array('wp_http_referer', 'updated', 'delete_count'), wp_unslash( $_REQUEST['wp_http_referer'] ) );

	$referer = '<input type="hidden" name="wp_http_referer" value="' . esc_attr($redirect) . '" />';

} else {

	$redirect = 'users.php';

	$referer = '';

}

$update = '';

/**

 * @since 3.5.0

 * @access private

 */

function delete_users_add_js() { ?>

<script>

jQuery(document).ready( function($) {

	var submit = $('#submit').prop('disabled', true);

	$('input[name=delete_option]').one('change', function() {

		submit.prop('disabled', false);

	});

	$('#reassign_user').focus( function() {

		$('#delete_option1').prop('checked', true).trigger('change');

	});

});

</script>

<?php

}

switch ( $wp_list_table->current_action() ) {

/* Bulk Dropdown menu Role changes */

case 'promote':

	check_admin_referer('bulk-users');

	if ( ! current_user_can( 'promote_users' ) )

		wp_die( __( 'You can’t edit that user.' ) );

	if ( empty($_REQUEST['users']) ) {

		wp_redirect($redirect);

		exit();

	}

	$editable_roles = get_editable_roles();

	if ( empty( $editable_roles[$_REQUEST['new_role']] ) )

		wp_die(__('You can’t give users that role.'));

	$userids = $_REQUEST['users'];

	$update = 'promote';

	foreach ( $userids as $id ) {

		$id = (int) $id;

		if ( ! current_user_can('promote_user', $id) )

			wp_die(__('You can’t edit that user.'));

		// The new role of the current user must also have the promote_users cap or be a multisite super admin

		if ( $id == $current_user->ID && ! $wp_roles->role_objects[ $_REQUEST['new_role'] ]->has_cap('promote_users')

			&& ! ( is_multisite() && is_super_admin() ) ) {

				$update = 'err_admin_role';

				continue;

		}

		// If the user doesn't already belong to the blog, bail.

		if ( is_multisite() && !is_user_member_of_blog( $id ) )

		$user = get_userdata( $id );

		$user->set_role($_REQUEST['new_role']);

	}

	wp_redirect(add_query_arg('update', $update, $redirect));

	exit();

case 'dodelete':

	if ( is_multisite() )

		wp_die( __('User deletion is not allowed from this screen.') );

	check_admin_referer('delete-users');

	if ( empty($_REQUEST['users']) ) {

		wp_redirect($redirect);

		exit();

	}

	$userids = array_map( 'intval', (array) $_REQUEST['users'] );

	if ( empty( $_REQUEST['delete_option'] ) ) {

		$url = self_admin_url( 'users.php?action=delete&users[]=' . implode( '&users[]=', $userids ) . '&error=true' );

		$url = str_replace( '&', '&', wp_nonce_url( $url, 'bulk-users' ) );

		wp_redirect( $url );

		exit;

	}

	if ( ! current_user_can( 'delete_users' ) )

		wp_die(__('You can’t delete users.'));

	$update = 'del';

	$delete_count = 0;

	foreach ( $userids as $id ) {

		if ( ! current_user_can( 'delete_user', $id ) )

			wp_die(__( 'You can’t delete that user.' ) );

		if ( $id == $current_user->ID ) {

			$update = 'err_admin_del';

			continue;

		}

		switch ( $_REQUEST['delete_option'] ) {

		case 'delete':

			wp_delete_user( $id );

			break;

		case 'reassign':

			wp_delete_user( $id, $_REQUEST['reassign_user'] );

			break;

		}

		++$delete_count;

	}

	$redirect = add_query_arg( array('delete_count' => $delete_count, 'update' => $update), $redirect);

	wp_redirect($redirect);

	exit();

case 'delete':

	if ( is_multisite() )

		wp_die( __('User deletion is not allowed from this screen.') );

	check_admin_referer('bulk-users');

	if ( empty($_REQUEST['users']) && empty($_REQUEST['user']) ) {

		wp_redirect($redirect);

		exit();

	}

	if ( ! current_user_can( 'delete_users' ) )

		$errors = new WP_Error( 'edit_users', __( 'You can’t delete users.' ) );

	if ( empty($_REQUEST['users']) )

		$userids = array( intval( $_REQUEST['user'] ) );

	else

		$userids = array_map( 'intval', (array) $_REQUEST['users'] );

	add_action( 'admin_head', 'delete_users_add_js' );

	include( ABSPATH . 'wp-admin/admin-header.php' );

?>

<?php wp_nonce_field('delete-users') ?>

<?php echo $referer; ?>

<div class="wrap">

<h2><?php _e('Delete Users'); ?></h2>

<?php if ( isset( $_REQUEST['error'] ) ) : ?>

<?php endif; ?>

<ul>

<?php

	$go_delete = 0;

	foreach ( $userids as $id ) {

		$user = get_userdata( $id );

		if ( $id == $current_user->ID ) {

			echo "<li>" . sprintf(__('ID #%1$s: %2$s <strong>The current user will not be deleted.</strong>'), $id, $user->user_login) . "</li>\n";

		} else {

			echo "<li><input type=\"hidden\" name=\"users[]\" value=\"" . esc_attr($id) . "\" />" . sprintf(__('ID #%1$s: %2$s'), $id, $user->user_login) . "</li>\n";

			$go_delete++;

		}

	}

	?>

	</ul>

<?php if ( $go_delete ) : ?>

	<ul style="list-style:none;">

		<li><label><input type="radio" id="delete_option0" name="delete_option" value="delete" />

		<li><input type="radio" id="delete_option1" name="delete_option" value="reassign" />

		wp_dropdown_users( array( 'name' => 'reassign_user', 'exclude' => array_diff( $userids, array($current_user->ID) ) ) ); ?></li>

	</ul></fieldset>

	<input type="hidden" name="action" value="dodelete" />

	<?php submit_button( __('Confirm Deletion'), 'secondary' ); ?>

<?php else : ?>

	<p><?php _e('There are no valid users selected for deletion.'); ?></p>

<?php endif; ?>

</div>

</form>

<?php

break;

case 'doremove':

	check_admin_referer('remove-users');

	if ( ! is_multisite() )

		wp_die( __( 'You can’t remove users.' ) );

	if ( empty($_REQUEST['users']) ) {

		wp_redirect($redirect);

		exit;

	}

	if ( ! current_user_can( 'remove_users' ) )

		wp_die( __( 'You can’t remove users.' ) );

	$userids = $_REQUEST['users'];

	$update = 'remove';

 	foreach ( $userids as $id ) {

		$id = (int) $id;

		if ( $id == $current_user->ID && !is_super_admin() ) {

			$update = 'err_admin_remove';

			continue;

		}

		if ( !current_user_can('remove_user', $id) ) {

			$update = 'err_admin_remove';

			continue;

		}

		remove_user_from_blog($id, $blog_id);

	}

	$redirect = add_query_arg( array('update' => $update), $redirect);

	wp_redirect($redirect);

	exit;

case 'remove':

	check_admin_referer('bulk-users');

	if ( ! is_multisite() )

		wp_die( __( 'You can’t remove users.' ) );

	if ( empty($_REQUEST['users']) && empty($_REQUEST['user']) ) {

		wp_redirect($redirect);

		exit();

	}

	if ( !current_user_can('remove_users') )

		$error = new WP_Error('edit_users', __('You can’t remove users.'));

	if ( empty($_REQUEST['users']) )

		$userids = array(intval($_REQUEST['user']));

	else

		$userids = $_REQUEST['users'];

	include( ABSPATH . 'wp-admin/admin-header.php' );

?>

<?php wp_nonce_field('remove-users') ?>

<?php echo $referer; ?>

<div class="wrap">

<h2><?php _e('Remove Users from Site'); ?></h2>

<p><?php _e('You have specified these users for removal:'); ?></p>

<ul>

<?php

	$go_remove = false;

 	foreach ( $userids as $id ) {

		$id = (int) $id;

 		$user = get_userdata( $id );

		if ( $id == $current_user->ID && !is_super_admin() ) {

			echo "<li>" . sprintf(__('ID #%1$s: %2$s <strong>The current user will not be removed.</strong>'), $id, $user->user_login) . "</li>\n";

		} elseif ( !current_user_can('remove_user', $id) ) {

			echo "<li>" . sprintf(__('ID #%1$s: %2$s <strong>You don\'t have permission to remove this user.</strong>'), $id, $user->user_login) . "</li>\n";

		} else {

			echo "<li><input type=\"hidden\" name=\"users[]\" value=\"{$id}\" />" . sprintf(__('ID #%1$s: %2$s'), $id, $user->user_login) . "</li>\n";

			$go_remove = true;

		}

 	}

 	?>

<?php if ( $go_remove ) : ?>

		<input type="hidden" name="action" value="doremove" />

		<?php submit_button( __('Confirm Removal'), 'secondary' ); ?>

<?php else : ?>

	<p><?php _e('There are no valid users selected for removal.'); ?></p>

<?php endif; ?>

</div>

</form>

<?php

break;

default:

	if ( !empty($_GET['_wp_http_referer']) ) {

		wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce'), wp_unslash( $_SERVER['REQUEST_URI'] ) ) );

		exit;

	}

	$wp_list_table->prepare_items();

	$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );

	if ( $pagenum > $total_pages && $total_pages > 0 ) {

		wp_redirect( add_query_arg( 'paged', $total_pages ) );

		exit;

	}

	include( ABSPATH . 'wp-admin/admin-header.php' );

	$messages = array();

	if ( isset($_GET['update']) ) :

		switch($_GET['update']) {

		case 'del':

		case 'del_many':

			$delete_count = isset($_GET['delete_count']) ? (int) $_GET['delete_count'] : 0;

			break;

		case 'add':

			if ( isset( $_GET['id'] ) && ( $user_id = $_GET['id'] ) && current_user_can( 'edit_user', $user_id ) ) {