<!--以下代码为主题目录下functions.php文件内代码!-->

// 彻底关闭自动更新

add_filter('automatic_updater_disabled', '__return_true');

// 关闭更新检查定时作业

remove_action('init', 'wp_schedule_update_checks');

// 移除已有的版本检查定时作业

wp_clear_scheduled_hook('wp_version_check');

// 移除已有的插件更新定时作业

wp_clear_scheduled_hook('wp_update_plugins');

// 移除已有的主题更新定时作业 

wp_clear_scheduled_hook('wp_update_themes');

// 移除已有的自动更新定时作业 

wp_clear_scheduled_hook('wp_maybe_auto_update');

// 移除后台内核更新检查 

remove_action( 'admin_init', '_maybe_update_core' );

// 移除后台插件更新检查 

remove_action( 'load-plugins.php', 'wp_update_plugins' );

remove_action( 'load-update.php', 'wp_update_plugins' );

remove_action( 'load-update-core.php', 'wp_update_plugins' );

remove_action( 'admin_init', '_maybe_update_plugins' );

// 移除后台主题更新检查 

remove_action( 'load-themes.php', 'wp_update_themes' );

remove_action( 'load-update.php', 'wp_update_themes' );

remove_action( 'load-update-core.php', 'wp_update_themes' );

remove_action( 'admin_init', '_maybe_update_themes' );

// 移除WP-JSON链接

remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );

remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 );

remove_action( 'template_redirect', 'rest_output_link_header', 11 );

// 禁止后台显示升级核心提示

add_filter('pre_site_transient_update_core', create_function('$a', "return null;"));

// 禁止后台显示插件升级提示

add_filter('pre_site_transient_update_plugins', create_function('$a', "return null;"));

// 禁止后台显示主题升级提示

add_filter('pre_site_transient_update_themes', create_function('$a', "return null;"));

// 把fonts.googleapis.com替换为fonts.useso.com

function bf_google_font($content)

{

return str_replace('fonts.googleapis.com', 'fonts.useso.com', $content);

return str_replace('ajax.googleapis.com', 'ajax.useso.com', $content);

}

// 关闭WordPress的XML-RPC功能（建议清空网站根目录下下xmlrpc.php内容）

add_filter('xmlrpc_enabled', '__return_false');

// 关闭XML-RPC 的 pingback端口

add_filter('xmlrpc_methods', 'remove_xmlrpc_pingback_ping');

function remove_xmlrpc_pingback_ping( $methods ) {

unset( $methods['pingback.ping'] );

return $methods;

}

// 禁止后台加载谷歌字体

function wp_remove_open_sans_from_wp_core() {

wp_deregister_style( 'open-sans' );

wp_register_style( 'open-sans', false );

wp_enqueue_style('open-sans','');

}

add_action( 'init', 'wp_remove_open_sans_from_wp_core' );

// 禁用Open Sans

class Disable_Google_Fonts {

public function __construct() {

add_filter( 'gettext_with_context', array( $this, 'disable_open_sans' ), 888, 4 );

}

public function disable_open_sans( $translations, $text, $context, $domain ) {

if ( 'Open Sans font: on or off' == $context && 'on' == $text ) {

$translations = 'off';

}

return $translations;

}

}

$disable_google_fonts = new Disable_Google_Fonts;

// 禁用 WordPress 的 JSON REST API

add_filter('json_enabled', '__return_false');

add_filter('json_jsonp_enabled', '__return_false');

// 阻止WordPress的PingBack端口

function no_self_ping( &$links ) {

$home = get_option( 'home' );

foreach ( $links as $l => $link )

if ( 0 === strpos( $link, $home ) )

unset($links[$l]);

}

add_action( 'pre_ping', 'no_self_ping' );

// 屏蔽XML-RPC(pingback)功能，阻止pingback端口

add_filter('xmlrpc_enabled', '__return_false');

add_filter('xmlrpc_methods', 'remove_xmlrpc_pingback_ping');

function remove_xmlrpc_pingback_ping( $methods ) {

unset( $methods['pingback.ping'] );

return $methods;

}

// 通过多说服务器加速Gravatar头像

function mytheme_get_avatar($avatar) {

$avatar = str_replace(array("www.gravatar.com","0.gravatar.com","1.gravatar.com","2.gravatar.com"),"gravatar.duoshuo.com",$avatar);

return $avatar;

}

add_filter( 'get_avatar', 'mytheme_get_avatar', 10, 3 );

// 替换前端公共库jQuery到国内，加快后台访问

function my_modify_jquery() {

if (!is_admin()) {

wp_deregister_script('jquery');

wp_deregister_script('jquery-form');

wp_register_script('jquery', ('https://cdn.bootcss.com/jquery/2.2.4/jquery.min.js'), false, null, true); 

wp_register_script('jquery-form', ('https://cdn.bootcss.com/jquery.form/4.2.2/jquery.form.min.js'), array(jquery), null, true);

}

}

// 替换评论用户头像链接为国内镜像加速访问

add_filter('get_avatar', function ($avatar) {

return str_replace([

'www.gravatar.com/avatar/',

'0.gravatar.com/avatar/',

'1.gravatar.com/avatar/',

'2.gravatar.com/avatar/',

'secure.gravatar.com/avatar/',

'cn.gravatar.com/avatar/'

], 'sdn.geekzu.org/avatar/', $avatar);

});

// 禁用embeds功能

function disable_embeds_init() {

global $wp;

$wp->public_query_vars = array_diff( $wp->public_query_vars, array(

'embed',

) );

remove_action( 'rest_api_init', 'wp_oembed_register_route' );

add_filter( 'embed_oembed_discover', '__return_false' );

remove_filter( 'oembed_dataparse', 'wp_filter_oembed_result', 10 );

remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );

remove_action( 'wp_head', 'wp_oembed_add_host_js' );

add_filter( 'tiny_mce_plugins', 'disable_embeds_tiny_mce_plugin' );

add_filter( 'rewrite_rules_array', 'disable_embeds_rewrites' );

}

add_action( 'init', 'disable_embeds_init', 9999 );

function disable_embeds_tiny_mce_plugin( $plugins ) {

return array_diff( $plugins, array( 'wpembed' ) );

}

function disable_embeds_rewrites( $rules ) {

foreach ( $rules as $rule => $rewrite ) {

if ( false !== strpos( $rewrite, 'embed=true' ) ) {

unset( $rules[ $rule ] );

}

}

return $rules;

}

function disable_embeds_remove_rewrite_rules() {

add_filter( 'rewrite_rules_array', 'disable_embeds_rewrites' );

flush_rewrite_rules();

}

register_activation_hook( __FILE__, 'disable_embeds_remove_rewrite_rules' );

function disable_embeds_flush_rewrite_rules() {

remove_filter( 'rewrite_rules_array', 'disable_embeds_rewrites' );

flush_rewrite_rules();

}

register_deactivation_hook( __FILE__, 'disable_embeds_flush_rewrite_rules' );

// WordPress关闭自动更新版本升级功能且保留提醒；

add_filter( 'automatic_updater_disabled', '__return_true' );

// 禁止WordPress头部加载境外域名s.w.org

function remove_dns_prefetch( $hints, $relation_type ) {

if ( 'dns-prefetch' === $relation_type ) {

return array_diff( wp_dependencies_unique_hosts(), $hints );

}

return $hints;

}

add_filter( 'wp_resource_hints', 'remove_dns_prefetch', 10, 2 );

// 解决后台加载ajax.googleapis无法访问

function hc_cdn_callback($buffer) {

return str_replace('ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/themes/smoothness/jquery-ui.css', 'cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.min.css', $buffer);

}

function hc_buffer_start() {

ob_start("hc_cdn_callback");

}

function izt_buffer_end() {

ob_end_flush();

}

add_action('init', 'hc_buffer_start');

add_action('shutdown', 'hc_buffer_end');

// 减少后台admin-ajax.php加载时间的方法

add_action( 'init', 'my_deregister_heartbeat', 1 );

function my_deregister_heartbeat() {

global $pagenow;

if ( 'post.php' != $pagenow && 'post-new.php' != $pagenow )

wp_deregister_script('heartbeat');

}

// 更改作者存档前缀

add_action('init', 'wpdaxue_change_author_base');

function wpdaxue_change_author_base() {

global $wp_rewrite;

$author_slug = '500'; // 更改前缀为500

$wp_rewrite->author_base = $author_slug;

}

// 更改作者链接,防止会员ID泄露；

add_filter( 'author_link', 'modify_author_link', 10, 1 ); 

function modify_author_link( $link ) { 

$link = 'https://www.baidu.com/'; //修改为自己需要的URL

return $link;  

}

// 禁用古腾堡方法一

// 1.禁用WP5.0+古滕堡反人类编辑器，使用Gutenberg模块经典文章编辑器;

add_filter('use_block_editor_for_post', '__return_false');

// 2.禁止WordPress新版本文章编辑器前端加载样式文件

remove_action('wp_enqueue_scripts', 'wp_common_block_scripts_and_styles');

// 禁用古腾堡方法二

if( wb_opt('gutenberg_switch') ) {

add_filter('use_block_editor_for_post_type',function($is_user,$post_type){return false;},10,2);

//WordPress 5.0+移除 block-library CSS

add_action( 'wp_enqueue_scripts', 'tonjay_remove_block_library_css', 100 );

function tonjay_remove_block_library_css() {

wp_dequeue_style( 'wp-block-library' );

}

}

// 自动给所有文章的外部链接添加nofollow属性（有助于SEO方面）

add_filter('the_content','the_content_nofollow',999);

function the_content_nofollow($content){

preg_match_all('/href="/go.php?url=KC4qPyk=" rel="external nofollow" /',$content,$matches);

if($matches){

foreach($matches[1] as $val){

if( strpos($val,home_url())===false ) $content=str_replace("href="$val"", "href="$val" rel="external nofollow" ",$content);

}

}

return $content;

}

// 发布文章主动推送到百度，加快收录保护原创,WordPress通用方式

if(!function_exists('Baidu_Submit')){

function Baidu_Submit($post_ID) {

$WEB_TOKEN = ''; //这里请换成你的网站的百度主动推送的token值

$WEB_DOMAIN = get_option('home');

// 已成功推送的文章不再推送

if(get_post_meta($post_ID,'Baidusubmit',true) == 1) return;

$url = get_permalink($post_ID);

$api = 'http://data.zz.baidu.com/urls?site='.$WEB_DOMAIN.'&token='.$WEB_TOKEN;

$request = new WP_Http;

$result = $request->request( $api , array( 'method' => 'POST', 'body' => $url , 'headers' => 'Content-Type: text/plain') );

$result = json_decode($result['body'],true);

// 如果推送成功则在文章新增自定义栏目Baidusubmit，值为1

if (array_key_exists('success',$result)) {

add_post_meta($post_ID, 'Baidusubmit', 1, true);

}

}

add_action('publish_post', 'Baidu_Submit', 0);

}

// 文章插入图片自动移除 img 的 width、height、class 属性；

add_filter( 'post_thumbnail_html', 'fanly_remove_images_attribute', 10 );

add_filter( 'image_send_to_editor', 'fanly_remove_images_attribute', 10 );

function fanly_remove_images_attribute( $html ) {

//$html = preg_replace( '/(width|height)="d*"s/', "", $html );

$html = preg_replace( '/width="(d*)"s+height="(d*)"s+class="[^"]*"/', "", $html );

$html = preg_replace( '/ /', "", $html );

return $html;

}

// 删除WordPress新版本站点健康状态面板和菜单项

add_action( 'admin_menu', 'remove_site_health_menu' ); 

function remove_site_health_menu(){

remove_submenu_page( 'tools.php','site-health.php' ); 

}

// 删除头部冗余代码

function my_filter_head(){

remove_action( 'wp_head','_admin_bar_bump_cb');

remove_action( 'wp_head','feed_links_extra',3 );

remove_action( 'wp_head','feed_links',2 );

remove_action( 'wp_head','rsd_link' );

remove_action( 'wp_head','wlwmanifest_link' );

remove_action( 'wp_head','index_rel_link' );

remove_action( 'wp_head','parent_post_rel_link',10,0 );

remove_action( 'wp_head','start_post_rel_link',10,0 );

remove_action( 'wp_head','adjacent_posts_rel_link',10,0 );

remove_action( 'wp_head','wp_generator' );

}

add_action('get_header','my_filter_head');

// 删除emoji脚本

remove_action( 'admin_print_scripts',   'print_emoji_detection_script');

remove_action( 'admin_print_styles',    'print_emoji_styles');

remove_action( 'wp_head',       'print_emoji_detection_script', 7);

remove_action( 'wp_print_styles',   'print_emoji_styles');

remove_filter( 'the_content_feed',  'wp_staticize_emoji');

remove_filter( 'comment_text_rss',  'wp_staticize_emoji');

remove_filter( 'wp_mail',       'wp_staticize_emoji_for_email');

remove_action( 'wp_head', 'feed_links_extra', 3 ); //去除评论feed

remove_action( 'wp_head', 'feed_links', 2 ); //去除文章feed

remove_action( 'wp_head', 'rsd_link' ); //针对Blog的远程离线编辑器接口

remove_action( 'wp_head', 'wlwmanifest_link' ); //Windows Live Writer接口

remove_action( 'wp_head', 'index_rel_link' ); //移除当前页面的索引

remove_action( 'wp_head', 'parent_post_rel_link', 10, 0 ); //移除后面文章的url

remove_action( 'wp_head', 'start_post_rel_link', 10, 0 ); //移除最开始文章的url

remove_action( 'wp_head', 'wp_shortlink_wp_head', 10, 0 );//自动生成的短链接

remove_action( 'wp_head', 'adjacent_posts_rel_link', 10, 0 ); ///移除相邻文章的url

remove_action( 'wp_head', 'wp_generator' ); // 移除版本号

// 自适应图片删除width和height

function ludou_remove_width_height_attribute($content){

preg_match_all('/<[img|IMG].*?src=['|"](.*?(?:[.gif|.jpg|.png.bmp]))['|"].*?[/]?>/', $content, $images);

if(!empty($images)) {

foreach($images[0] as $index => $value){

$new_img = preg_replace('/(width|height)="d*"s/', "", $images[0][$index]);

$content = str_replace($images[0][$index], $new_img, $content);

}

}

return $content;

}

// 删除默认缩略图

function v7v3_remove_image_size($sizes) {

unset( $sizes['small'] );

unset( $sizes['medium'] );

unset( $sizes['large'] );

return $sizes;

}

add_filter('image_size_names_choose', 'v7v3_remove_image_size');

// 删除文章时删除图片附件

function delete_post_and_attachments($post_ID) {

global $wpdb;

// 删除特色图片

$thumbnails = $wpdb->get_results( "SELECT * FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND post_id = $post_ID" ); 

foreach ( $thumbnails as $thumbnail ) {

wp_delete_attachment( $thumbnail->meta_value, true ); 

}

// 删除图片附件

$attachments = $wpdb->get_results( "SELECT * FROM $wpdb->posts WHERE post_parent = $post_ID AND post_type = 'attachment'" );

foreach ( $attachments as $attachment ) {

wp_delete_attachment( $attachment->ID, true ); 

} 

$wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND post_id = $post_ID" ); 

}

add_action('before_delete_post', 'delete_post_and_attachments');

// 禁用自动生成的图片尺寸

function shapeSpace_disable_image_sizes($sizes) {

unset($sizes['thumbnail']);    // disable thumbnail size

unset($sizes['medium']);       // disable medium size

unset($sizes['large']);        // disable large size

unset($sizes['medium_large']); // disable medium-large size

unset($sizes['1536x1536']);    // disable 2x medium-large size

unset($sizes['2048x2048']);    // disable 2x large size

return $sizes;

}

add_action('intermediate_image_sizes_advanced', 'shapeSpace_disable_image_sizes');

// 禁用缩放尺寸

add_filter('big_image_size_threshold', '__return_false');

// 禁用其他图片尺寸

function shapeSpace_disable_other_image_sizes() {

remove_image_size('post-thumbnail'); // disable images added via set_post_thumbnail_size() 

remove_image_size('another-size');   // disable any other added image sizes

}

add_action('init', 'shapeSpace_disable_other_image_sizes');

// 防止网站遭受恶意URL请求

if(strlen($_SERVER['REQUEST_URI']) > 366 ||

strpos($_SERVER['REQUEST_URI'], "eval(") ||

strpos($_SERVER['REQUEST_URI'], "base64")) {

@header("HTTP/1.1 414 Request-URI Too Long");

@header("Status: 414 Request-URI Too Long");

@header("Connection: Close");

@exit;

}

// 防止CC攻击

session_start(); //开启session

$timestamp = time();

$ll_nowtime = $timestamp;

// 判断session是否存在，如果存在从session取值，如果不存在进行初始化赋值！

if ($_SESSION){

$ll_lasttime = $_SESSION['ll_lasttime'];

$ll_times = $_SESSION['ll_times'] + 1;

$_SESSION['ll_times'] = $ll_times;

}else{

$ll_lasttime = $ll_nowtime;

$ll_times = 1;

$_SESSION['ll_times'] = $ll_times;

$_SESSION['ll_lasttime'] = $ll_lasttime;

}

// 中文名图片上传改名

function tin_custom_upload_name($file){

if(preg_match('/[一-龥]/u',$file['name'])):

$ext=ltrim(strrchr($file['name'],'.'),'.');

$file['name']=preg_replace('#^www.#', '', strtolower($_SERVER['SERVER_NAME'])).'_'.date('Y-m-d_H-i-s').'.'.$ext;

endif;

return $file;

}

add_filter('wp_handle_upload_prefilter','tin_custom_upload_name',5,1);

// 为网站全部页面添加canonical标签

function cx_archive_link( $paged = true ) {

$link = false;

if ( is_front_page() ) {

$link = home_url( '/' );

} else if ( is_home() && "page" == get_option('show_on_front') ) {

$link = get_permalink( get_option( 'page_for_posts' ) );

} else if ( is_tax() || is_tag() || is_category() ) {

$term = get_queried_object();

$link = get_term_link( $term, $term->taxonomy );

} else if ( is_post_type_archive() ) {

$link = get_post_type_archive_link( get_post_type() );

} else if ( is_author() ) {

$link = get_author_posts_url( get_query_var('author'), get_query_var('author_name') );

} else if ( is_single() ) {

$link = get_permalink( $id );

} else if ( is_archive() ) {

if ( is_date() ) {

if ( is_day() ) {

$link = get_day_link( get_query_var('year'), get_query_var('monthnum'), get_query_var('day') );

} else if ( is_month() ) {

$link = get_month_link( get_query_var('year'), get_query_var('monthnum') );

} else if ( is_year() ) {

$link = get_year_link( get_query_var('year') );

}

}

}

if ( $paged && $link && get_query_var('paged') > 1 ) {

global $wp_rewrite;

if ( !$wp_rewrite->using_permalinks() ) {

$link = add_query_arg( 'paged', get_query_var('paged'), $link );

} else {

$link = user_trailingslashit( trailingslashit( $link ) . trailingslashit( $wp_rewrite->pagination_base ) . get_query_var('paged'), 'archive' );

}

}

echo '';

}

add_action('wp_head', 'cx_archive_link');

// Wordpress程序自定义全角转半角

$qmr_work_tags = array(

//'the_title', // 标题

'the_content', // 内容 *

//'the_excerpt', // 摘要 *

//'single_post_title', // 单篇文章标题

//'comment_author', // 评论作者

//'comment_text', // 评论内容 *

//'link_description', // 友链描述（已弃用，但还很常用）

//'bloginfo', // 博客信息

//'wp_title', // 网站标题

//'term_description', // 项目描述

//'category_description', // 分类描述

//'widget_title', // 小工具标题

//'widget_text' // 小工具文本

);

foreach ( $qmr_work_tags as $qmr_work_tag ) {

remove_filter ($qmr_work_tag, 'wptexturize');

}

// 限制用户进入后台控制面板界面

function baw_no_admin_access() {

if( !current_user_can( 'administrator' ) ) {

wp_redirect( home_url() );

die();

}

}

add_action( 'admin_init', 'baw_no_admin_access', 1 );

// SMTP发送邮件

function mail_smtp( $phpmailer ){

$phpmailer->From = 'admin@qq.com'; //发件人邮箱

$phpmailer->FromName = '腾讯网'; //发件人名称

$phpmailer->Host = 'smtp.qq.com'; //SMTP服务器地址

$phpmailer->Port = '465'; //SMTP端口，常用的有25、465、587

$phpmailer->SMTPSecure = 'ssl'; //SMTP加密方式，常用的有SSL/TLS，port=25留空，465为ssl

$phpmailer->Username = 'admin@qq.com'; //邮箱帐号

$phpmailer->Password = '0123456789'; //邮箱密码

$phpmailer->IsSMTP(); //使用SMTP发送

$phpmailer->SMTPAuth = true; //启用SMTPAuth服务

}

add_action('phpmailer_init','mail_smtp');