<?php

/**

 * New User Administration Screen.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** WordPress Administration Bootstrap */

require_once __DIR__ . '/admin.php';

if ( is_multisite() ) {

	if ( ! current_user_can( 'create_users' ) && ! current_user_can( 'promote_users' ) ) {

		wp_die(

			'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .

			'<p>' . __( 'Sorry, you are not allowed to add users to this network.' ) . '</p>',

			403

		);

	}

} elseif ( ! current_user_can( 'create_users' ) ) {

	wp_die(

		'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .

		'<p>' . __( 'Sorry, you are not allowed to create users.' ) . '</p>',

		403

	);

}

if ( is_multisite() ) {

	add_filter( 'wpmu_signup_user_notification_email', 'admin_created_user_email' );

}

if ( isset( $_REQUEST['action'] ) && 'adduser' === $_REQUEST['action'] ) {

	check_admin_referer( 'add-user', '_wpnonce_add-user' );

	$user_details = null;

	$user_email   = wp_unslash( $_REQUEST['email'] );

	if ( false !== strpos( $user_email, '@' ) ) {

		$user_details = get_user_by( 'email', $user_email );

	} else {

		if ( current_user_can( 'manage_network_users' ) ) {

			$user_details = get_user_by( 'login', $user_email );

		} else {

			wp_redirect( add_query_arg( array( 'update' => 'enter_email' ), 'user-new.php' ) );

			die();

		}

	}

	if ( ! $user_details ) {

		wp_redirect( add_query_arg( array( 'update' => 'does_not_exist' ), 'user-new.php' ) );

		die();

	}

	if ( ! current_user_can( 'promote_user', $user_details->ID ) ) {

		wp_die(

			'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .

			'<p>' . __( 'Sorry, you are not allowed to add users to this network.' ) . '</p>',

			403

		);

	}

	// Adding an existing user to this blog.

	$new_user_email = $user_details->user_email;

	$redirect       = 'user-new.php';

	$username       = $user_details->user_login;

	$user_id        = $user_details->ID;

	if ( null != $username && array_key_exists( $blog_id, get_blogs_of_user( $user_id ) ) ) {

		$redirect = add_query_arg( array( 'update' => 'addexisting' ), 'user-new.php' );

	} else {

		if ( isset( $_POST['noconfirmation'] ) && current_user_can( 'manage_network_users' ) ) {

			$result = add_existing_user_to_blog(

				array(

					'user_id' => $user_id,

					'role'    => $_REQUEST['role'],

				)

			);

			if ( ! is_wp_error( $result ) ) {

				$redirect = add_query_arg(

					array(

						'update'  => 'addnoconfirmation',

						'user_id' => $user_id,

					),

					'user-new.php'

				);

			} else {

				$redirect = add_query_arg( array( 'update' => 'could_not_add' ), 'user-new.php' );

			}

		} else {

			$newuser_key = wp_generate_password( 20, false );

			add_option(

				'new_user_' . $newuser_key,

				array(

					'user_id' => $user_id,

					'email'   => $user_details->user_email,

					'role'    => $_REQUEST['role'],

				)

			);

			$roles = get_editable_roles();

			$role  = $roles[ $_REQUEST['role'] ];

			/**

			 * Fires immediately after a user is invited to join a site, but before the notification is sent.

			 *

			 * @since 4.4.0

			 *

			 * @param int    $user_id     The invited user's ID.

			 * @param array  $role        Array containing role information for the invited user.

			 * @param string $newuser_key The key of the invitation.

			 */

			do_action( 'invite_user', $user_id, $role, $newuser_key );

			$switched_locale = switch_to_locale( get_user_locale( $user_details ) );

			/* translators: 1: Site title, 2: Site URL, 3: User role, 4: Activation URL. */

			$message = __(

				'Hi,

You\'ve been invited to join \'%1$s\' at

%2$s with the role of %3$s.

Please click the following link to confirm the invite:

%4$s'

			);

			wp_mail(

				$new_user_email,

				sprintf(

					/* translators: Joining confirmation notification email subject. %s: Site title. */

					__( '[%s] Joining Confirmation' ),

					wp_specialchars_decode( get_option( 'blogname' ) )

				),

				sprintf(

					$message,

					get_option( 'blogname' ),

					home_url(),

					wp_specialchars_decode( translate_user_role( $role['name'] ) ),

					home_url( "/newbloguser/$newuser_key/" )

				)

			);

			if ( $switched_locale ) {

				restore_previous_locale();

			}

			$redirect = add_query_arg( array( 'update' => 'add' ), 'user-new.php' );

		}

	}

	wp_redirect( $redirect );

	die();

} elseif ( isset( $_REQUEST['action'] ) && 'createuser' === $_REQUEST['action'] ) {

	check_admin_referer( 'create-user', '_wpnonce_create-user' );

	if ( ! current_user_can( 'create_users' ) ) {

		wp_die(

			'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .

			'<p>' . __( 'Sorry, you are not allowed to create users.' ) . '</p>',

			403

		);

	}

	if ( ! is_multisite() ) {

		$user_id = edit_user();

		if ( is_wp_error( $user_id ) ) {

			$add_user_errors = $user_id;

		} else {

			if ( current_user_can( 'list_users' ) ) {

				$redirect = 'users.php?update=add&id=' . $user_id;

			} else {

				$redirect = add_query_arg( 'update', 'add', 'user-new.php' );

			}

			wp_redirect( $redirect );

			die();

		}

	} else {

		// Adding a new user to this site.

		$new_user_email = wp_unslash( $_REQUEST['email'] );

		$user_details   = wpmu_validate_user_signup( $_REQUEST['user_login'], $new_user_email );

		if ( is_wp_error( $user_details['errors'] ) && $user_details['errors']->has_errors() ) {

			$add_user_errors = $user_details['errors'];

		} else {

			/** This filter is documented in wp-includes/user.php */

			$new_user_login = apply_filters( 'pre_user_login', sanitize_user( wp_unslash( $_REQUEST['user_login'] ), true ) );

			if ( isset( $_POST['noconfirmation'] ) && current_user_can( 'manage_network_users' ) ) {

				add_filter( 'wpmu_signup_user_notification', '__return_false' );  // Disable confirmation email.

				add_filter( 'wpmu_welcome_user_notification', '__return_false' ); // Disable welcome email.

			}

			wpmu_signup_user(

				$new_user_login,

				$new_user_email,

				array(

					'add_to_blog' => get_current_blog_id(),

					'new_role'    => $_REQUEST['role'],

				)

			);

			if ( isset( $_POST['noconfirmation'] ) && current_user_can( 'manage_network_users' ) ) {

				$key      = $wpdb->get_var( $wpdb->prepare( "SELECT activation_key FROM {$wpdb->signups} WHERE user_login = %s AND user_email = %s", $new_user_login, $new_user_email ) );

				$new_user = wpmu_activate_signup( $key );

				if ( is_wp_error( $new_user ) ) {

					$redirect = add_query_arg( array( 'update' => 'addnoconfirmation' ), 'user-new.php' );

				} elseif ( ! is_user_member_of_blog( $new_user['user_id'] ) ) {

					$redirect = add_query_arg( array( 'update' => 'created_could_not_add' ), 'user-new.php' );

				} else {

					$redirect = add_query_arg(

						array(

							'update'  => 'addnoconfirmation',

							'user_id' => $new_user['user_id'],

						),

						'user-new.php'

					);

				}

			} else {

				$redirect = add_query_arg( array( 'update' => 'newuserconfirmation' ), 'user-new.php' );

			}

			wp_redirect( $redirect );

			die();

		}

	}

}

$title       = __( 'Add New User' );

$parent_file = 'users.php';

$do_both = false;

if ( is_multisite() && current_user_can( 'promote_users' ) && current_user_can( 'create_users' ) ) {

	$do_both = true;

}

$help = '<p>' . __( 'To add a new user to your site, fill in the form on this screen and click the Add New User button at the bottom.' ) . '</p>';

if ( is_multisite() ) {

	$help .= '<p>' . __( 'Because this is a multisite installation, you may add accounts that already exist on the Network by specifying a username or email, and defining a role. For more options, such as specifying a password, you have to be a Network Administrator and use the hover link under an existing user&#8217;s name to Edit the user profile under Network Admin > All Users.' ) . '</p>' .

	'<p>' . __( 'New users will receive an email letting them know they&#8217;ve been added as a user for your site. This email will also contain their password. Check the box if you don&#8217;t want the user to receive a welcome email.' ) . '</p>';

} else {

	$help .= '<p>' . __( 'New users are automatically assigned a password, which they can change after logging in. You can view or edit the assigned password by clicking the Show Password button. The username cannot be changed once the user has been added.' ) . '</p>' .

	'<p>' . __( 'By default, new users will receive an email letting them know they&#8217;ve been added as a user for your site. This email will also contain a password reset link. Uncheck the box if you don&#8217;t want to send the new user a welcome email.' ) . '</p>';

}

$help .= '<p>' . __( 'Remember to click the Add New User button at the bottom of this screen when you are finished.' ) . '</p>';

get_current_screen()->add_help_tab(

	array(

		'id'      => 'overview',

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

		'content' => $help,

	)

);

get_current_screen()->add_help_tab(

	array(

		'id'      => 'user-roles',

		'title'   => __( 'User Roles' ),

		'content' => '<p>' . __( 'Here is a basic overview of the different user roles and the permissions associated with each one:' ) . '</p>' .

							'<ul>' .

							'<li>' . __( 'Subscribers can read comments/comment/receive newsletters, etc. but cannot create regular site content.' ) . '</li>' .

							'<li>' . __( 'Contributors can write and manage their posts but not publish posts or upload media files.' ) . '</li>' .

							'<li>' . __( 'Authors can publish and manage their own posts, and are able to upload files.' ) . '</li>' .

							'<li>' . __( 'Editors can publish posts, manage posts as well as manage other people&#8217;s posts, etc.' ) . '</li>' .

							'<li>' . __( 'Administrators have access to all the administration features.' ) . '</li>' .

							'</ul>',

	)

);

get_current_screen()->set_help_sidebar(

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

	'<p>' . __( '<a href="https://wordpress.org/support/article/users-add-new-screen/">Documentation on Adding New Users</a>' ) . '</p>' .

	'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'

);

wp_enqueue_script( 'wp-ajax-response' );

wp_enqueue_script( 'user-profile' );

/**

 * Filters whether to enable user auto-complete for non-super admins in Multisite.

 *

 * @since 3.4.0

 *

 * @param bool $enable Whether to enable auto-complete for non-super admins. Default false.

 */

if ( is_multisite() && current_user_can( 'promote_users' ) && ! wp_is_large_network( 'users' )

	&& ( current_user_can( 'manage_network_users' ) || apply_filters( 'autocomplete_users_for_site_admins', false ) )

) {

	wp_enqueue_script( 'user-suggest' );

}

require_once ABSPATH . 'wp-admin/admin-header.php';

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

	$messages = array();

	if ( is_multisite() ) {

		$edit_link = '';

		if ( ( isset( $_GET['user_id'] ) ) ) {

			$user_id_new = absint( $_GET['user_id'] );

			if ( $user_id_new ) {

				$edit_link = esc_url( add_query_arg( 'wp_http_referer', urlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) ), get_edit_user_link( $user_id_new ) ) );

			}

		}

		switch ( $_GET['update'] ) {

			case 'newuserconfirmation':

				$messages[] = __( 'Invitation email sent to new user. A confirmation link must be clicked before their account is created.' );

				break;

			case 'add':

				$messages[] = __( 'Invitation email sent to user. A confirmation link must be clicked for them to be added to your site.' );

				break;

			case 'addnoconfirmation':

				$message = __( 'User has been added to your site.' );

				if ( $edit_link ) {

					$message .= sprintf( ' <a href="%s">%s</a>', $edit_link, __( 'Edit user' ) );

				}

				$messages[] = $message;

				break;

			case 'addexisting':

				$messages[] = __( 'That user is already a member of this site.' );

				break;

			case 'could_not_add':

				$add_user_errors = new WP_Error( 'could_not_add', __( 'That user could not be added to this site.' ) );

				break;

			case 'created_could_not_add':

				$add_user_errors = new WP_Error( 'created_could_not_add', __( 'User has been created, but could not be added to this site.' ) );

				break;

			case 'does_not_exist':

				$add_user_errors = new WP_Error( 'does_not_exist', __( 'The requested user does not exist.' ) );

				break;

			case 'enter_email':

				$add_user_errors = new WP_Error( 'enter_email', __( 'Please enter a valid email address.' ) );

				break;

		}

	} else {

		if ( 'add' === $_GET['update'] ) {

			$messages[] = __( 'User added.' );

		}

	}

}

?>

<div class="wrap">

<h1 id="add-new-user">

<?php

if ( current_user_can( 'create_users' ) ) {

	_e( 'Add New User' );

} elseif ( current_user_can( 'promote_users' ) ) {

	_e( 'Add Existing User' );

}

?>

</h1>

<?php if ( isset( $errors ) && is_wp_error( $errors ) ) : ?>

	<div class="error">

		<ul>

		<?php

		foreach ( $errors->get_error_messages() as $err ) {

			echo "<li>$err</li>\n";

		}

		?>

		</ul>

	</div>

	<?php

endif;

if ( ! empty( $messages ) ) {

	foreach ( $messages as $msg ) {

		echo '<div id="message" class="updated notice is-dismissible"><p>' . $msg . '</p></div>';

	}

}

?>

<?php if ( isset( $add_user_errors ) && is_wp_error( $add_user_errors ) ) : ?>

	<div class="error">

		<?php

		foreach ( $add_user_errors->get_error_messages() as $message ) {

			echo "<p>$message</p>";

		}

		?>

	</div>

<?php endif; ?>

<div id="ajax-response"></div>

<?php

if ( is_multisite() && current_user_can( 'promote_users' ) ) {

	if ( $do_both ) {

		echo '<h2 id="add-existing-user">' . __( 'Add Existing User' ) . '</h2>';

	}

	if ( ! current_user_can( 'manage_network_users' ) ) {

		echo '<p>' . __( 'Enter the email address of an existing user on this network to invite them to this site. That person will be sent an email asking them to confirm the invite.' ) . '</p>';