Periksa nama pengguna yang benar pada formulir masuk khusus

Saya telah menggunakan tutorial Jeff Star untuk membuat form login kustom saya sendiri http://digwp.com/2010/12/login-register-password-code/ . Ini bekerja dengan baik, tetapi saya punya satu masalah. Pada formulir atur ulang kata sandi, jika seseorang memasukkan nama pengguna mereka dengan salah (sehingga tidak memverifikasi), mereka ditendang ke wp-login.php? Action = lostpassword dengan pesan kesalahan yang default.

Apakah ada cara untuk mengarahkan ulang ke halaman kesalahan saya sendiri?

Terima kasih!

Kode yang dia posting dalam tutorial itu (BTW yang sangat bagus) memposting formulir ke modul "reset password" built-in yang mengarahkan ulang ke kesalahan login.php, tetapi Anda dapat mengubahnya dan membangunnya sendiri berdasarkan yang asli dan menambahkan ke halaman templat, ubah:

<form method="post" action="<?php echo site_url('wp-login.php?action=lostpassword', 'login_post') ?>" class="wp-user-form">
    <div class="username">
        <label for="user_login" class="hide"><?php _e('Username or Email'); ?>: </label>
        <input type="text" name="user_login" value="" size="20" id="user_login" tabindex="1001" />
    </div>
    <div class="login_fields">
        <?php do_action('login_form', 'resetpass'); ?>
        <input type="submit" name="user-submit" value="<?php _e('Reset my password'); ?>" class="user-submit" tabindex="1002" />
        <?php $reset = $_GET['reset']; if($reset == true) { echo '<p>A message will be sent to your email address.</p>'; } ?>
        <input type="hidden" name="redirect_to" value="<?php echo $_SERVER['REQUEST_URI']; ?>?reset=true" />
        <input type="hidden" name="user-cookie" value="1" />
    </div>
</form>

untuk:

<form method="post" action="<?php echo $_SERVER['REQUEST_URI']; ?>" class="wp-user-form">
<div class="username">
    <label for="user_login" class="hide"><?php _e('Username or Email'); ?>: </label>
    <input type="text" name="user_login" value="" size="20" id="user_login" tabindex="1001" />
</div>
<div class="login_fields">
    <?php do_action('login_form', 'resetpass'); ?>
    <input type="submit" name="user-submit" value="<?php _e('Reset my password'); ?>" class="user-submit" tabindex="1002" />

    <?php
    if (isset($_POST['reset_pass']))
    {
        global $wpdb;
        $username = trim($_POST['user_login']);
        $user_exists = false;
        if (username_exists($username))
        {
            $user_exists = true;
            $user_data = get_userdatabylogin($username);
        } elseif (email_exists($username))
        {

            $user_exists = true;
            $user = get_user_by_email($username);
        } else
        {
            $error[] = '<p>' . __('Username or Email was not found, try again!') . '</p>';
        }
        if ($user_exists)
        {
            $user_login = $user->user_login;
            $user_email = $user->user_email;
            // Generate something random for a password... md5'ing current time with a rand salt
            $key = substr(md5(uniqid(microtime())), 0, 8);
            // Now insert the new pass md5'd into the db
            $wpdb->query("UPDATE $wpdb->users SET user_activation_key = '$key' WHERE user_login = '$user_login'");
            //create email message
            $message = __('Someone has asked to reset the password for the following site and username.') . "\r\n\r\n";
            $message .= get_option('siteurl') . "\r\n\r\n";
            $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
            $message .= __('To reset your password visit the following address, otherwise just ignore this email and nothing will happen.') . "\r\n\r\n";
            $message .= get_option('siteurl') . "/wp-login.php?action=rp&key=$key\r\n";
            //send email meassage
            if (FALSE == wp_mail($user_email, sprintf(__('[%s] Password Reset'), get_option('blogname')), $message))
            $error[] = '<p>' . __('The e-mail could not be sent.') . "<br />\n" . __('Possible reason: your host may have disabled the mail() function...') . '</p>';
        }
        if (count($error) > 0)
        {
            foreach ($error as $e)
            {
                echo $e . '<br/>';
            }
        } else
        {
            echo '<p>' . __('A message will be sent to your email address.') . '</p>';
        }
    }
    ?> 
    <input type="hidden" name="reset_pass" value="1" />
    <input type="hidden" name="user-cookie" value="1" />
</div>
</form>

Berikut ini adalah versi terbaru dari kode dari @bainternet dengan kesalahan sintaksinya diperbaiki, saran oleh @Val dan generator kunci dari wp-login.php 3.4.2:

global $wpdb;
$username = trim($_POST['user_login']);
$user_exists = false;
// First check by username
if ( username_exists( $username ) ){
    $user_exists = true;
    $user = get_user_by('login', $username);
}
// Then, by e-mail address
elseif( email_exists($username) ){
        $user_exists = true;
        $user = get_user_by_email($username);
}else{
    $error[] = '<p>'.__('Username or Email was not found, try again!').'</p>';
}
if ($user_exists){
    $user_login = $user->user_login;
    $user_email = $user->user_email;

    $key = $wpdb->get_var($wpdb->prepare("SELECT user_activation_key FROM $wpdb->users WHERE user_login = %s", $user_login));
    if ( empty($key) ) {
        // Generate something random for a key...
        $key = wp_generate_password(20, false);
        do_action('retrieve_password_key', $user_login, $key);
        // Now insert the new md5 key into the db
        $wpdb->update($wpdb->users, array('user_activation_key' => $key), array('user_login' => $user_login));
    }

    //create email message
    $message = __('Someone has asked to reset the password for the following site and username.') . "\r\n\r\n";
    $message .= get_option('siteurl') . "\r\n\r\n";
    $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
    $message .= __('To reset your password visit the following address, otherwise just ignore this email and nothing will happen.') . "\r\n\r\n";
    $message .= network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . "&redirect_to=".urlencode(get_option('siteurl'))."\r\n";
    //send email meassage
    if (FALSE == wp_mail($user_email, sprintf(__('[%s] Password Reset'), get_option('blogname')), $message))
    $error[] = '<p>' . __('The e-mail could not be sent.') . "<br />\n" . __('Possible reason: your host may have disabled the mail() function...') . '</p>';
}
if (count($error) > 0 ){
    foreach($error as $e){
                echo $e . "<br/>";
            }
}else{
    echo '<p>'.__('A message will be sent to your email address.').'</p>'; 
}

Saya masih mengalami masalah dengan kunci reset tidak berfungsi dengan benar, tautan dalam email akan mengarahkan saya ke halaman reset kata sandi standar dengan parameter URL yang menunjukkan masalah dengan kunci, jadi saya lebih dekat mengikuti file wp-login.php dan termasuk objek $ wp_hasher, ini memperbaiki masalah dan pengaturan ulang kata sandi dalam email sekarang berfungsi

if (($_SERVER['REQUEST_METHOD'] === (string) 'POST') && (isset($_POST['reset_pass']))) {

// Acccess global properties
global $wpdb, $wp_hasher;


// Variables
$error_pass_reset = array();
$username         = (string) trim($_POST['user_login']);
$user_exists      = (bool)   false;



// ---- USERNAME OR EMAIL EXISTS ---- //
if (username_exists($username)) {
    $user_exists = (bool)   true;
    $user        = (object) get_user_by('login', $username);
} // end if

else if (email_exists($username)) {
    $user_exists = (bool)   true;
    $user        = (object) get_user_by('email', $username);
} // end else if

else {
    $error_pass_reset[] = '<p>Username or Email was not found, please try again.</p>';
} // end else



// ---- USER EXISTS ---- //
if ($user_exists === (bool) true) {
    // Variables
    $user_login = (string) $user -> user_login;
    $user_email = (string) $user -> user_email;


    // Generate password reset key
if (empty($key)) {
    $key = (string) wp_generate_password(20, false);

    do_action('retrieve_password_key', $user_login, $key);


    // Create the $wp_hasher object
    if (empty($wp_hasher)) {
        require_once(ABSPATH . WPINC . '/class-phpass.php');

        $wp_hasher = new PasswordHash(8, true);
    }

    // Reset key with hasher applied (MD5 has string output)
    $hashed = (string) time() . ':' . $wp_hasher -> HashPassword($key);


    // Insert the new key into the database
    $wpdb -> update(
        $wpdb -> users,
        array(
            'user_activation_key' => $hashed
        ),
        array(
            'user_login' => $user_login
        )
    );
} // end if


    // Email message
    $message = (string)
    'Someone requested that the password be reset for the following account:' . "\r\n\r\n" .

    get_option('siteurl') . "\r\n\r\n" .

    'Username: ' . $user_login . "\r\n\r\n" .
    'If this was a mistake, just ignore this email and nothing will happen.' . "\r\n\r\n" .
    'To reset your password, visit the following address:' . "\r\n\r\n" .

    get_option('siteurl') . '/wp-login.php?action=rp&key=' . $key . '&login=' . $user_login . "\r\n";


    // Send email
    if ((bool) false === wp_mail($user_email, get_option('blogname') . ' Password Reset', $message)) {
        $error_pass_reset[] = '<p>The e-mail could not be sent at this time.</p>' . "\n";
    } // end if
} // end if


// Send the rest password email
do_action('login_form', 'resetpass');

} // end if (($_SERVER['REQUEST_METHOD'] === (string) 'POST') && (isset($_POST['reset_pass'])))