【发布时间】：2016-07-13 14:57:19
【问题描述】：
我目前正在尝试向Rename wp-login.php 添加新选项，因为它几乎没有更新。所有者还允许我为其添加新选项。
插件功能允许您“重命名”/wp-admin/ 和 wp-login.php 到不同的位置。我对 PHP 类几乎一无所知，你猜对了，整个插件基本上是使用 PHP 类创建的。
我想做什么：
当该字段为空时，将所有内容还原为
/wp-admin/。基本上是一个禁用选项；我知道了，但是当该字段留空并且您将其保存时，它会保存之前输入的值。这是个问题；保存为空时应该为空。目前该字段位于设置菜单的“永久链接”部分，但我想将该选项放在自定义页面中。
另外，这个插件如何保存字段的值？我找不到任何东西，甚至没有 register_setting 函数。
当我说“领域”时，我指的是这个领域：<input id="rwl-page-input" type="text" name="rwl_page" value="' . $this->new_login_slug() . '">
代码如下：
<?php
if ( defined( 'ABSPATH' ) && ! class_exists( 'Rename_WP_Login' ) ) {
class Rename_WP_Login {
private $wp_login_php;
private function basename() {
return plugin_basename( __FILE__ );
}
private function path() {
return trailingslashit( dirname( __FILE__ ) );
}
private function use_trailing_slashes() {
return '/' === substr( get_option( 'permalink_structure' ), -1, 1 );
}
private function user_trailingslashit( $string ) {
return $this->use_trailing_slashes() ? trailingslashit( $string ) : untrailingslashit( $string );
}
private function wp_template_loader() {
global $pagenow;
$pagenow = 'index.php';
if ( ! defined( 'WP_USE_THEMES' ) ) {
define( 'WP_USE_THEMES', true );
}
wp();
if ( $_SERVER['REQUEST_URI'] === $this->user_trailingslashit( str_repeat( '-/', 10 ) ) ) {
$_SERVER['REQUEST_URI'] = $this->user_trailingslashit( '/wp-login-php/' );
}
require_once ABSPATH . WPINC . '/template-loader.php';
die;
}
private function new_login_slug() {
if (
( $slug = get_option( 'rwl_page' ) ) || (
is_multisite() &&
is_plugin_active_for_network( $this->basename() ) &&
( $slug = get_site_option( 'rwl_page', 'login' ) )
) ||
( $slug = 'login' )
) {
return $slug;
}
}
public function new_login_url( $scheme = null ) {
if ( get_option( 'permalink_structure' ) ) {
return $this->user_trailingslashit( home_url( '/', $scheme ) . $this->new_login_slug() );
} else {
return home_url( '/', $scheme ) . '?' . $this->new_login_slug();
}
}
public function __construct() {
register_activation_hook( $this->basename(), array( $this, 'activate' ) );
register_uninstall_hook( $this->basename(), array( 'Rename_WP_Login', 'uninstall' ) );
add_action( 'admin_init', array( $this, 'admin_init' ) );
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
add_action( 'network_admin_notices', array( $this, 'admin_notices' ) );
if ( is_multisite() && ! function_exists( 'is_plugin_active_for_network' ) ) {
require_once ABSPATH . '/wp-admin/includes/plugin.php';
}
add_filter( 'plugin_action_links_' . $this->basename(), array( $this, 'plugin_action_links' ) );
if ( is_multisite() && is_plugin_active_for_network( $this->basename() ) ) {
add_filter( 'network_admin_plugin_action_links_' . $this->basename(), array( $this, 'plugin_action_links' ) );
add_action( 'wpmu_options', array( $this, 'wpmu_options' ) );
add_action( 'update_wpmu_options', array( $this, 'update_wpmu_options' ) );
}
add_action( 'plugins_loaded', array( $this, 'plugins_loaded' ), 1 );
add_action( 'wp_loaded', array( $this, 'wp_loaded' ) );
add_filter( 'site_url', array( $this, 'site_url' ), 10, 4 );
add_filter( 'network_site_url', array( $this, 'network_site_url' ), 10, 3 );
add_filter( 'wp_redirect', array( $this, 'wp_redirect' ), 10, 2 );
add_filter( 'site_option_welcome_email', array( $this, 'welcome_email' ) );
remove_action( 'template_redirect', 'wp_redirect_admin_locations', 1000 );
}
public function activate() {
add_option( 'rwl_redirect', '1' );
}
public static function uninstall() {
global $wpdb;
if ( is_multisite() ) {
$blogs = $wpdb->get_col( "SELECT blog_id FROM {$wpdb->blogs}" );
if ( $blogs ) {
foreach ( $blogs as $blog ) {
switch_to_blog( $blog );
delete_option( 'rwl_page' );
}
restore_current_blog();
}
delete_site_option( 'rwl_page' );
} else {
delete_option( 'rwl_page' );
}
}
public function wpmu_options() {
echo (
'<h3>' .
_x( 'Rename wp-login.php', 'Text string for settings page', 'rename-wp-login' ) .
'</h3>' .
'<p>' .
__( 'This option allows you to set a networkwide default, which can be overridden by individual sites. Simply go to to the site’s permalink settings to change the url.', 'rename-wp-login' ) .
'</p>' .
'<table class="form-table">' .
'<tr valign="top">' .
'<th scope="row">' .
__( 'Networkwide default', 'rename-wp-login' ) .
'</th>' .
'<td>' .
'<input id="rwl-page-input" type="text" name="rwl_page" value="' . get_site_option( 'rwl_page', 'login' ) . '">' .
'</td>' .
'</tr>' .
'</table>'
);
}
public function update_wpmu_options() {
if (
( $rwl_page = sanitize_title_with_dashes( $_POST['rwl_page'] ) ) &&
strpos( $rwl_page, 'wp-login' ) === false &&
! in_array( $rwl_page, $this->forbidden_slugs() )
) {
update_site_option( 'rwl_page', $rwl_page );
}
}
public function admin_init() {
global $pagenow;
add_settings_section(
'rename-wp-login-section',
_x( 'Rename wp-login.php', 'Text string for settings page', 'rename-wp-login' ),
array( $this, 'rwl_section_desc' ),
'permalink'
);
add_settings_field(
'rwl-page',
'<label for="rwl-page">' . __( 'Login url', 'rename-wp-login' ) . '</label>',
array( $this, 'rwl_page_input' ),
'permalink',
'rename-wp-login-section'
);
if ( isset( $_POST['rwl_page'] ) && $pagenow === 'options-permalink.php' ) {
if (
( $rwl_page = sanitize_title_with_dashes( $_POST['rwl_page'] ) ) &&
strpos( $rwl_page, 'wp-login' ) === false &&
! in_array( $rwl_page, $this->forbidden_slugs() )
) {
if ( is_multisite() && $rwl_page === get_site_option( 'rwl_page', 'login' ) ) {
delete_option( 'rwl_page' );
} else {
update_option( 'rwl_page', $rwl_page );
}
}
}
if ( get_option( 'rwl_redirect' ) ) {
delete_option( 'rwl_redirect' );
if ( is_multisite() && is_super_admin() && is_plugin_active_for_network( $this->basename() ) ) {
$redirect = network_admin_url( 'settings.php#rwl-page-input' );
} else {
$redirect = admin_url( 'options-permalink.php#rwl-page-input' );
}
wp_safe_redirect( $redirect );
die;
}
}
public function rwl_section_desc() {
if ( is_multisite() && is_super_admin() && is_plugin_active_for_network( $this->basename() ) ) {
echo (
'<p>' .
sprintf(
__( 'To set a networkwide default, go to %s.', 'rename-wp-login' ),
'<a href="' . esc_url( network_admin_url( 'settings.php#rwl-page-input' ) ) . '">' .
__( 'Network Settings', 'rename-wp-login' ) .
'</a>'
) .
'</p>'
);
}
}
public function rwl_page_input() {
if ( get_option( 'permalink_structure' ) ) {
echo '<code>' . trailingslashit( home_url() ) . '</code> <input id="rwl-page-input" type="text" name="rwl_page" value="' . $this->new_login_slug() . '">' . ( $this->use_trailing_slashes() ? ' <code>/</code>' : '' );
} else {
echo '<code>' . trailingslashit( home_url() ) . '?</code> <input id="rwl-page-input" type="text" name="rwl_page" value="' . $this->new_login_slug() . '">';
}
}
public function admin_notices() {
global $pagenow;
if ( ! is_network_admin() && $pagenow === 'options-permalink.php' && isset( $_GET['settings-updated'] ) ) {
echo '<div class="notice notice-success is-dismissible"><p>' . sprintf( __( 'Your login page is now here: %s. Bookmark this page!', 'rename-wp-login' ), '<strong><a href="' . $this->new_login_url() . '">' . $this->new_login_url() . '</a></strong>' ) . '</p></div>';
}
}
public function plugin_action_links( $links ) {
if ( is_network_admin() && is_plugin_active_for_network( $this->basename() ) ) {
array_unshift( $links,
'<a href="' . esc_url( network_admin_url( 'settings.php#rwl-page-input' ) ) . '">' .
__( 'Settings', 'rename-wp-login' ) .
'</a>'
);
} elseif ( ! is_network_admin() ) {
array_unshift( $links,
'<a href="' . esc_url( admin_url( 'options-permalink.php#rwl-page-input' ) ) . '">' .
__( 'Settings', 'rename-wp-login' ) .
'</a>'
);
}
return $links;
}
public function plugins_loaded() {
global $pagenow;
load_plugin_textdomain( 'rename-wp-login' );
if (
! is_multisite() && (
strpos( $_SERVER['REQUEST_URI'], 'wp-signup' ) !== false ||
strpos( $_SERVER['REQUEST_URI'], 'wp-activate' ) !== false
)
) {
wp_die( __( 'This feature is not enabled.', 'rename-wp-login' ), '', array( 'response' => 403 ) );
}
$request = parse_url( $_SERVER['REQUEST_URI'] );
if ( (
strpos( $_SERVER['REQUEST_URI'], 'wp-login.php' ) !== false ||
untrailingslashit( $request['path'] ) === site_url( 'wp-login', 'relative' )
) &&
! is_admin()
) {
$this->wp_login_php = true;
$_SERVER['REQUEST_URI'] = $this->user_trailingslashit( '/' . str_repeat( '-/', 10 ) );
$pagenow = 'index.php';
} elseif (
untrailingslashit( $request['path'] ) === home_url( $this->new_login_slug(), 'relative' ) || (
! get_option( 'permalink_structure' ) &&
isset( $_GET[$this->new_login_slug()] ) &&
empty( $_GET[$this->new_login_slug()] )
) ) {
$pagenow = 'wp-login.php';
}
}
public function wp_loaded() {
global $pagenow;
if ( is_admin() && ! is_user_logged_in() && ! defined( 'DOING_AJAX' ) ) {
wp_die( __( 'You must log in to access the admin area.', 'rename-wp-login' ), '', array( 'response' => 403 ) );
}
$request = parse_url( $_SERVER['REQUEST_URI'] );
if (
$pagenow === 'wp-login.php' &&
$request['path'] !== $this->user_trailingslashit( $request['path'] ) &&
get_option( 'permalink_structure' )
) {
wp_safe_redirect( $this->user_trailingslashit( $this->new_login_url() ) . ( ! empty( $_SERVER['QUERY_STRING'] ) ? '?' . $_SERVER['QUERY_STRING'] : '' ) );
die;
} elseif ( $this->wp_login_php ) {
if (
( $referer = wp_get_referer() ) &&
strpos( $referer, 'wp-activate.php' ) !== false &&
( $referer = parse_url( $referer ) ) &&
! empty( $referer['query'] )
) {
parse_str( $referer['query'], $referer );
if (
! empty( $referer['key'] ) &&
( $result = wpmu_activate_signup( $referer['key'] ) ) &&
is_wp_error( $result ) && (
$result->get_error_code() === 'already_active' ||
$result->get_error_code() === 'blog_taken'
) ) {
wp_safe_redirect( $this->new_login_url() . ( ! empty( $_SERVER['QUERY_STRING'] ) ? '?' . $_SERVER['QUERY_STRING'] : '' ) );
die;
}
}
$this->wp_template_loader();
} elseif ( $pagenow === 'wp-login.php' ) {
global $error, $interim_login, $action, $user_login;
@require_once ABSPATH . 'wp-login.php';
die;
}
}
public function site_url( $url, $path, $scheme, $blog_id ) {
return $this->filter_wp_login_php( $url, $scheme );
}
public function network_site_url( $url, $path, $scheme ) {
return $this->filter_wp_login_php( $url, $scheme );
}
public function wp_redirect( $location, $status ) {
return $this->filter_wp_login_php( $location );
}
public function filter_wp_login_php( $url, $scheme = null ) {
if ( strpos( $url, 'wp-login.php' ) !== false ) {
if ( is_ssl() ) {
$scheme = 'https';
}
$args = explode( '?', $url );
if ( isset( $args[1] ) ) {
parse_str( $args[1], $args );
$url = add_query_arg( $args, $this->new_login_url( $scheme ) );
} else {
$url = $this->new_login_url( $scheme );
}
}
return $url;
}
public function welcome_email( $value ) {
return str_replace( 'wp-login.php', trailingslashit( get_site_option( 'rwl_page', 'login' ) ), $value );
}
public function forbidden_slugs() {
$wp = new WP;
return array_merge( $wp->public_query_vars, $wp->private_query_vars );
}
}
new Rename_WP_Login;
}
如果有人能帮我解决这个问题，我会非常非常感激！
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标签： php wordpress class plugins