File: /www/wwwroot/www.cytocare.cn/wp-content/plugins/wpjam-basic/components/wpjam-cdn.php
<?php
/*
Name: CDN 加速
URI: https://mp.weixin.qq.com/s/bie4JkmExgULgvEgx-AjUw
Description: CDN 加速使用云存储对博客的静态资源进行 CDN 加速。
Version: 2.0
*/
class WPJAM_CDN extends WPJAM_Option_Model{
public static function get_sections(){
$cdn_fields = WPJAM_CDN_Type::get_setting_fields(['type'=>'select', 'name'=>'cdn_name', 'title'=>'云存储'])+[
'host' => ['title'=>'CDN 域名', 'show_if'=>['cdn_name', '!=', ''], 'type'=>'url', 'description'=>'设置为在CDN云存储绑定的域名。'],
'disabled' => ['title'=>'切换回本站','show_if'=>['cdn_name', '=', ''], 'label'=>'如使用 CDN 之后切换回使用本站图片，请勾选该选项，并将原 CDN 域名填回「本地设置」的「额外域名」中。'],
'image' => ['title'=>'图片处理', 'show_if'=>['cdn_name', 'IN', ['aliyun_oss', 'volc_imagex', 'qcloud_cos', 'qiniu']], 'class'=>'switch', 'value'=>1, 'label'=>'开启云存储图片处理功能，使用云存储进行裁图、添加水印等操作。<br /> <strong>*</strong> 注意：开启之后，文章和媒体库中的所有图片都会镜像到云存储。'],
];
$local_fields = [
'local' => ['title'=>'本地域名', 'fields'=>[
'local' => ['description'=>'并将该域名填入<strong>云存储的镜像源</strong>', 'type'=>'url', 'value'=>home_url()],
'no_http' => ['label'=>'将无<code>http://</code>或<code>https://</code>的静态资源也进行镜像处理'],
]],
'exts' => ['title'=>'扩展名', 'fields'=>[
'img_exts' => ['label'=>'支持所有图片扩展名'],
'exts' => ['type'=>'mu-text', 'button_text'=>'添加扩展名', 'direction'=>'row', 'sortable'=>false, 'description'=>'镜像到云存储的静态文件扩展名'],
]],
'dirs' => ['title'=>'目录', 'type'=>'mu-text', 'direction'=>'row', 'sortable'=>false, 'style'=>'width:120px;', 'value'=>['wp-content','wp-includes'], 'description'=>'镜像到云存储的静态文件所在目录'],
'locals' => ['title'=>'额外域名', 'type'=>'mu-text', 'item_type'=>'url'],
];
$sections = [
'cdn' => ['title'=>'云存储设置', 'fields'=>$cdn_fields],
'local' => ['title'=>'本地设置', 'fields'=>$local_fields],
];
if(is_network_admin()){
return wpjam_except($sections, 'local.fields.local');
}
if(!wpjam_basic_get_setting('upload_external_images')){
if(!is_multisite() && $GLOBALS['wp_rewrite']->using_mod_rewrite_permalinks() && extension_loaded('gd')){
$remote_summary = '*自动将外部图片镜像到云存储需要博客支持固定链接和服务器支持GD库（不支持gif图片）';
$remote_fields['remote'] = ['title'=>'外部图片', 'options'=>[''=>'关闭外部图片镜像到云存储', '1'=>'自动将外部图片镜像到云存储（不推荐）']];
}else{
$remote_fields['external'] = ['title'=>'外部图片', 'type'=>'view', 'value'=>'请先到「文章设置」中开启「支持在文章列表页上传外部图片」'];
}
}else{
$remote_fields['external'] = ['title'=>'外部图片', 'type'=>'view', 'value'=>'已在「文章设置」中开启「支持在文章列表页上传外部图片」'];
}
$remote_fields['exceptions'] = ['title'=>'例外', 'type'=>'textarea', 'class'=>'', 'description'=>'如果外部图片的链接中包含以上字符串或域名，就不会被保存并镜像到云存储。'];
$wm_fields = ['title'=>'水印设置', 'show_if'=>['cdn_name', '!=', 'volc_imagex'], 'fields'=>[
'view' => ['type'=>'view', 'title'=>'使用说明：', 'value'=>'请使用云存储域名下的图片，水印设置仅应用于文章内容中的图片'],
'watermark' => ['type'=>'image', 'title'=>'水印图片：'],
'dissolve' => ['type'=>'number', 'title'=>'透明度：', 'class'=>'small-text', 'description'=>'1-100，默认100（不透明）', 'min'=>0, 'max'=>100],
'gravity' => ['type'=>'select', 'title'=>'水印位置：', 'options'=>[
'SouthEast' => '右下角',
'SouthWest' => '左下角',
'NorthEast' => '右上角',
'NorthWest' => '左上角',
'Center' => '正中间',
'West' => '左中间',
'East' => '右中间',
'North' => '上中间',
'South' => '下中间'
]],
'distance' => ['type'=>'size', 'title'=>'水印边距：', 'fields'=>['width'=>['value'=>10], 'height'=>['value'=>10]]],
'wm_size' => ['type'=>'size', 'title'=>'最小尺寸：', 'description'=>'小于该尺寸的图片都不会加上水印', 'show_if'=>['cdn_name', 'IN', ['aliyun_oss', 'qcloud_cos']]]
]];
$image_fields = [
'thumb_set' => ['title'=>'缩图设置', 'fields'=>[
'no_subsizes' => ['value'=>1, 'label'=>'使用云存储的缩图功能，本地不再生成各种尺寸的缩略图。'],
'thumbnail' => ['value'=>1, 'label'=>'使用云存储缩图功能对文章中的图片进行最佳尺寸显示处理。', 'fields'=>['max_width'=>['type'=>'number', 'value'=>($GLOBALS['content_width'] ?? 0), 'before'=>'文章中图片最大宽度：', 'class'=>'small-text', 'after'=>'px。']]]
]],
'webp' => ['title'=>'WebP 格式', 'label'=>'将图片转换成 WebP 格式。', 'show_if'=>['cdn_name', 'IN', ['volc_imagex', 'aliyun_oss', 'qcloud_cos']]],
'image_set' => ['title'=>'格式质量', 'show_if'=>['cdn_name', '!=', 'volc_imagex'], 'fields'=>[
'interlace' => ['label'=>'JPEG格式图片渐进显示。'],
'quality' => ['type'=>'number', 'before'=>'图片质量：', 'class'=>'small-text', 'mim'=>0, 'max'=>100]
]],
'wm_set' => $wm_fields,
'volc_imagex_template' => ['title'=>'火山引擎图片处理模板', 'show_if'=>['cdn_name', 'volc_imagex']]
];
return $sections+[
'image' => ['title'=>'图片设置', 'fields'=>$image_fields, 'show_if'=>['image', 1]],
'remote' => ['title'=>'外部图片', 'fields'=>$remote_fields, 'show_if'=>['cdn_name', '!=', ''], 'summary'=>$remote_summary ?? ''],
];
}
public static function get_setting($name='', ...$args){
if(in_array($name, ['dx', 'dy'])){
$name = 'distance.'.['dx'=>'width', 'dy'=>'height'][$name];
}elseif(in_array($name, ['wm_width', 'wm_height'])){
$name = 'wm_size.'.substr($name, 3);
}
$value = parent::get_setting($name, ...$args);
if(in_array($name, ['exts', 'dirs'])){
$value = $value ? array_filter(array_map('trim', $value)) : [];
if($name == 'exts'){
$value = is_login() ? array_diff($value, ['js','css']) : $value;
$value = parent::get_setting('img_exts') ? array_unique(array_merge($value, wp_get_ext_types()['image'])) : $value;
}
}elseif($name == 'watermark'){
$value = $value ? (explode('?', $value))[0] : '';
}
return $value;
}
public static function get_sizes($id, $meta){
foreach(wp_get_registered_image_subsizes() as $name => $size){
$downsize = self::downsize($id, $size, $meta);
if($downsize && !empty($downsize[3])){
$arr = explode('?', $downsize[0]);
$sizes[$name] = [
'file' => wp_basename($arr[0]).(isset($arr[1]) ? '?'.$arr[1] : ''),
'url' => $downsize[0],
'width' => $downsize[1],
'height' => $downsize[2],
'orientation' => $downsize[2] > $downsize[1] ? 'portrait' : 'landscape',
];
}
}
return $sizes ?? [];
}
public static function is($url){
return apply_filters('wpjam_is_cdn_url', str_starts_with($url, CDN_HOST), $url);
}
public static function is_external($url, $scene){
if(self::is($url)){
return false;
}
$exceptions = $scene == 'fetch' ? self::get_setting('exceptions') : [];
$exceptions = $exceptions ? array_filter(explode("\n", $exceptions)) : [];
return $exceptions ? array_all($exceptions, fn($v)=> strpos($url, trim($v)) === false) : true;
}
public static function downsize($id, $size, $meta=null){
$url = wp_get_attachment_url($id);
$meta ??= wp_get_attachment_metadata($id);
if(is_array($meta) && isset($meta['width'], $meta['height'])){
$ratio = 2;
$size = wpjam_parse_size($size, $ratio);
if($size['crop']){
[$width, $height] = [min($size['width'], $meta['width']), min($size['height'], $meta['height'])];
}else{
[$width, $height] = wp_constrain_dimensions($meta['width'], $meta['height'], $size['width'], $size['height']);
}
if($width < $meta['width'] || $height < $meta['height']){
return [wpjam_get_thumbnail($url, compact('width', 'height')), (int)($width/$ratio), (int)($height/$ratio), true];
}else{
return [wpjam_get_thumbnail($url), $width, $height, false];
}
}
return [];
}
public static function scheme_replace($url){
$http = str_starts_with($url, 'http://');
return ($http ? 'https://' : 'http://').substr($url, ($http ? 7 : 8));
}
public static function replace($str, $to_cdn=true, $html=false){
$to = $to_cdn ? CDN_HOST : LOCAL_HOST;
if(!$html && str_starts_with($str, $to)){
return $str;
}
$locals = [self::scheme_replace(LOCAL_HOST), ...array_map('untrailingslashit', self::get_setting('locals') ?: [])];
$locals = $to_cdn ? [...$locals, self::scheme_replace(CDN_HOST), LOCAL_HOST] : $locals;
$locals = array_unique(apply_filters('wpjam_cdn_local_hosts', $locals));
if($html){
return strtr($str, array_fill_keys($locals, $to));
}
$local = array_find($locals, fn($v)=> str_starts_with($str, $v));
return $local ? $to.substr($str, strlen($local)) : $str;
}
public static function filter_html($html){
$local = preg_quote(LOCAL_HOST).(self::get_setting('no_http') ? '|'.preg_quote(str_replace(['http://', 'https://'], '//', LOCAL_HOST)) : '');
$exts = self::get_setting('exts');
$dirs = self::get_setting('dirs');
$dirs = $dirs ? '('.implode('|', array_map(fn($dir)=> preg_quote(trim($dir, '/')), $dirs)).')\/' : '';
$regex = '#('.$local.')\/('.$dirs.'[^\s\?\\\'\"\;\>\<]{1,}\.('.implode('|', $exts).')'.'[\"\\\'\)\s\]\?]{1})#';
return wpjam_replace($regex, CDN_HOST.'/$2', self::replace($html, false, true));
}
public static function resize($proc, $size, $max){
if($max && $size['width'] > $max){
$size = ['width'=>$max, 'height'=>(int)($max/$size['width']*$size['height'])];
array_walk($size, fn($v, $k)=> $v ? $proc->set_attribute($k, $v) : null);
}
return $size;
}
public static function filter_content_img_tag($img_tag, $context, $id){
$proc = $context == 'the_content' ? wpjam_html_tag_processor($img_tag) : '';
$src = $proc ? $proc->get_attribute('src') : '';
if(!$src || wpjam_is_external_url($src)){
return $img_tag;
}
$attr = ['width', 'height'];
$valid = fn($size)=> array_all($size, fn($v)=> is_numeric($v));
$size = wpjam_fill($attr, fn($k)=> $proc->get_attribute($k) ?: 0);
$max = (int)self::get_setting('max_width', ($GLOBALS['content_width'] ?? 0));
$meta = $id ? wp_get_attachment_metadata($id) : null;
if($meta && is_array($meta) && !array_filter($size)){
$name = $proc->get_attribute('data-size');
$size = self::resize($proc, wpjam_slice((($name && $name != 'full') ? ($meta['sizes'][$name] ?? $meta) : $meta), $attr), $max);
}else{
if($max){
if($valid($size) && $size['width'] > $max){
$size = self::resize($proc, $size, $max);
}elseif(!array_filter($size)){
$size['width'] = $max;
}
}
}
if($meta && is_array($meta) && $valid($size)){
$s2 = wpjam_fill($attr, fn($k)=> $size[$k]*2 >= $meta[$k]);
if($s2['width'] && $s2['height']){
unset($size['width'], $size['height']);
}elseif($s2['width'] && !$size['height']){
unset($size['width']);
}elseif($s2['height'] && !$size['width']){
unset($size['height']);
}
}
$proc->set_attribute('src', wpjam_get_thumbnail($src, wpjam_parse_size($size+['content'=>true], 2)));
return $proc->get_updated_html();
}
public static function filter_image_block($content, $parsed){
$slug = $parsed['attrs']['sizeSlug'] ?? '';
$slug = $slug == 'full' ? '' : $slug;
$size = wpjam_slice($parsed['attrs'], ['width', 'height']);
if($slug || $size){
$proc = wpjam_html_tag_processor($content, 'img');
if($slug){
$proc->set_attribute('data-size', $slug);
}
if($size){
array_walk($size, fn($v, $k)=> $proc->get_attribute($k) || $proc->set_attribute($k, str_ends_with($v, 'px') ? substr($v, 0, -2) : $v));
}
return (string)$proc;
}
return $content;
}
public static function filter_content($content){
if(doing_filter('get_the_excerpt') || false === strpos($content, '<img')){
return $content;
}
if(!wpjam_is_json_request()){
$content = self::replace($content, false, true);
}
if(self::get_setting('no_subsizes', 1)){
add_filter('wp_img_tag_add_srcset_and_sizes_attr', fn()=> false);
add_filter('wp_img_tag_add_width_and_height_attr', fn()=> false);
}
add_filter('wp_content_img_tag', [self::class, 'filter_content_img_tag'], 1, 3);
return $content;
}
public static function on_plugins_loaded(){
define('CDN_NAME', self::get_setting('cdn_name'));
define('CDN_HOST', untrailingslashit(self::get_setting('host') ?: site_url()));
define('LOCAL_HOST', untrailingslashit(set_url_scheme(self::get_setting('local') ?: site_url())));
if(CDN_NAME){
do_action('wpjam_cdn_loaded');
$exts = self::get_setting('exts');
if(!is_admin() && $exts){
add_filter((wpjam_is_json_request() ? 'the_content' : 'wpjam_html'), [self::class, 'filter_html'], 5);
}
add_filter('wpjam_is_external_url', fn($status, $url, $scene)=> $status && self::is_external($url, $scene), 10, 3);
add_filter('wp_resource_hints', fn($urls, $type)=> array_merge($urls, $type == 'dns-prefetch' ? [CDN_HOST] : []), 10, 2);
if(self::get_setting('image', 1)){
if(!self::get_setting('distance')){
self::update_setting('distance', ['width'=>self::get_setting('dx', 10), 'height'=>self::get_setting('dy', 10)]);
}
if(!self::get_setting('wm_size')){
self::update_setting('wm_size', ['width'=>self::get_setting('wm_width', 0), 'height'=>self::get_setting('wm_height', 0)]);
}
WPJAM_CDN_Type::load(CDN_NAME);
if(self::get_setting('no_subsizes', 1)){
add_filter('wp_calculate_image_srcset_meta', fn()=> []);
add_filter('embed_thumbnail_image_size', fn()=> '160x120');
add_filter('intermediate_image_sizes_advanced', fn($sizes)=> isset($sizes['full']) ? ['full'=>$sizes['full']] : []);
add_filter('wp_get_attachment_metadata', fn($meta, $id)=> array_merge($meta, (wp_attachment_is_image($id) && is_array($meta) && empty($meta['sizes'])) ? ['sizes'=>self::get_sizes($id, $meta)] : []), 10, 2);
}
if(self::get_setting('thumbnail', 1)){
add_filter('render_block_core/image', [self::class, 'filter_image_block'], 5, 2);
add_filter('the_content', [self::class, 'filter_content'], 5);
}
if($exts){
add_filter('wp_get_attachment_url', fn($url)=> preg_match('/\.('.implode('|', $exts).')$/i', $url) ? self::replace($url) : $url);
}
add_filter('wpjam_thumbnail', [self::class, 'replace'], 1, 1);
add_filter('wp_mime_type_icon', [self::class, 'replace']);
// add_filter('upload_dir', [self::class, 'filter_upload_dir']);
add_filter('image_downsize', fn($downsize, $id, $size)=> wp_attachment_is_image($id) ? self::downsize($id, $size) : $downsize, 10, 3);
}
if(!wpjam_basic_get_setting('upload_external_images')){
if(self::get_setting('remote') === 'download'){
if(is_admin()){
WPJAM_Basic::update_setting('upload_external_images', 1);
self::update_setting('remote', 0);
}
}elseif(self::get_setting('remote')){
if(!is_multisite()){
include dirname(__DIR__).'/cdn/remote.php';
}
}
}
}else{
if(self::get_setting('disabled')){
$replace = fn($html)=> self::replace($html, false, true);
if(!is_admin() && !wpjam_is_json_request()){
add_filter('wpjam_html', $replace, 9);
}
add_filter('the_content', $replace, 5);
add_filter('wpjam_thumbnail', $replace, 9);
}
}
}
}
class WPJAM_CDN_Type extends WPJAM_Register{
public static function load($name){
$object = self::get($name);
$file = $object ? ($object->file ?: dirname(__DIR__).'/cdn/'.$name.'.php') : '';
if($file && file_exists($file)){
$callback = include $file;
if($callback !== 1 && is_callable($callback)){
add_filter('wpjam_thumbnail', $callback, 10, 2);
}
}
}
public static function get_defaults(){
return [
'aliyun_oss' => [
'title' => '阿里云OSS',
'description' => '请点击这里注册和申请<strong><a href="http://wpjam.com/go/aliyun/" target="_blank">阿里云</a></strong>可获得代金券，点击这里查看<strong><a href="https://blog.wpjam.com/m/aliyun-oss-cdn/" target="_blank">阿里云OSS详细使用指南</a></strong>。'
],
'qcloud_cos' => [
'title' => '腾讯云COS',
'description' => '请点击这里注册和申请<strong><a href="http://wpjam.com/go/qcloud/" target="_blank">腾讯云</a></strong>可获得优惠券，点击这里查看<strong><a href="https://blog.wpjam.com/m/qcloud-cos-cdn/" target="_blank">腾讯云COS详细使用指南</a></strong>。'
],
'volc_imagex' => [
'title' => '火山引擎veImageX',
'description' => '使用邀请码 <strong>CLEMNL</strong> 注册和申请<strong><a href="https://wpjam.com/go/volc-imagex" target="_blank">火山引擎</a></strong>，可以领取每月免费额度（10GB流量和10GB存储等），<br />以及HTTPS 访问免费和回源流量免费，点击这里查看<strong><a href="http://blog.wpjam.com/m/volc-veimagex/" target="_blank">火山引擎 veImageX 详细使用指南</a></strong>。'
],
'ucloud' => ['title'=>'UCloud'],
'qiniu' => ['title'=>'七牛云存储'],
];
}
}
function wpjam_register_cdn($name, $args){
return WPJAM_CDN_Type::register($name, $args);
}
function wpjam_unregister_cdn($name){
return WPJAM_CDN_Type::unregister($name);
}
function wpjam_cdn_get_setting($name, ...$args){
return WPJAM_CDN::get_setting($name, ...$args);
}
function wpjam_cdn_host_replace($html, $to_cdn=true){
return WPJAM_CDN::replace($html, $to_cdn, true);
}
function wpjam_local_host_replace($html){
return str_replace(CDN_HOST, LOCAL_HOST, $html);
}
function wpjam_is_cdn_url($url){
return WPJAM_CDN::is($url);
}
function wpjam_restore_attachment_file($id){
$file = get_attached_file($id, true);
if($file && !file_exists($file)){
$dir = dirname($file);
if(!is_dir($dir)){
mkdir($dir, 0777, true);
}
$image = WPJAM_CDN::replace(wp_get_attachment_url($id));
$result = wpjam_remote_request($image, ['stream'=>true, 'filename'=>$file]);
if(is_wp_error($result)){
return $result;
}
}
return true;
}
wpjam_register_option('wpjam-cdn', [
'title' => 'CDN加速',
'model' => 'WPJAM_CDN',
'hooks' => ['plugins_loaded', ['WPJAM_CDN', 'on_plugins_loaded'], 99],
'menu_page' => ['parent'=>'wpjam-basic', 'position'=>2, 'summary'=>__FILE__],
'site_default' => true,
]);