WordPress 非插件实现静态资源CDN加速及又拍云、七牛CDN配置

2024-09-07 00:51:51

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本文我们来分享一个 WordPress 非插件纯代码实现的静态资源CDN加速的功能,文章后面我们再将告诉你如何在又拍云、七牛CDN加速配置.

先我们看看实现CDN加速功能的步骤,将本地图片地址替换为CDN地址,添加至主题目录functions.php中:

define('CDN_HOST','http://cdn.mywpku.com');

add_filter('the_content','z_cdn_content');

function z_cdn_content($content){

  return str_replace(home_url().'/wp-content/uploads', CDN_HOST.'/wp-content/uploads', $content);

  }

  add_filter('wp_get_attachment_url','z_get_attachment_url',10,2);

function z_get_attachment_url($url, $post_id){

  return str_replace(home_url(), CDN_HOST, $url);

  }

注意 define('CDN_HOST','http://cdn.mywpku.com'); 需要替换为你自己的CDN地址,将主题静态资源地址替换为CDN地址,添加至主题目录functions.php中:

add_filter('stylesheet_directory_uri','z_cdn_stylesheet_directory_uri',10,3);

function z_cdn_stylesheet_directory_uri($stylesheet_dir_uri, $stylesheet, $theme_root_uri) {

return str_replace(home_url(), CDN_HOST, $stylesheet_dir_uri);

}

add_filter('template_directory_uri','z_cdn_template_directory_uri',10,3);

function z_cdn_template_directory_uri($template_dir_uri, $template, $theme_root_uri)

{

return str_replace(home_url(), CDN_HOST, $template_dir_uri);

}

将 wp-content / wp-includes 静态资源替换为CDN地址.

@Via：http://www.Vevb.com/jianzhan/2282.html

define('FocusCDNHost','http://ehsren.com');//wordpress网站网址

define('FocusCDNRemote','http://cdn.ehsren.com');//cdn域名

define('FocusCDNIncludes','wp-content,wp-includes');//设置加速目录

define('FocusCDNExcludes','.php|.xml|.html|.po|.mo');//设置文件白名单

define('FocusCDNRelative','');//Check this if you want to have links like <wp-content/abc.png> rewritten - i.e. without your blog's domain as prefix.



function do_cdnrewrite_ob_start() {

$rewriter = new FocusCDNRewriteWordpress();

$rewriter->register_as_output_buffer();

}

add_action('template_redirect', 'do_cdnrewrite_ob_start');



class FocusCDNRewriteWordpress extends FocusCDNRewrite

{

function __construct() {

$excl_tmp = FocusCDNExcludes;

$excludes = array_map('trim', explode('|', $excl_tmp));



parent::__construct(

FocusCDNHost,

FocusCDNRemote,

FocusCDNIncludes,

$excludes,

!!FocusCDNRelative

);

}

public function register_as_output_buffer() {

if ($this->blog_url != FocusCDNRemote) {

ob_start(array(&$this, 'rewrite'));

}

}



}



class FocusCDNRewrite {

var $blog_url    = null;

var $cdn_url     = null;

var $include_dirs   = null;

var $excludes    = array();

var $rootrelative   = false;



function __construct($blog_url, $cdn_url, $include_dirs, array $excludes, $root_relative) {

$this->blog_url   = $blog_url;

$this->cdn_url    = $cdn_url;

$this->include_dirs  = $include_dirs;

$this->excludes   = $excludes;

$this->rootrelative  = $root_relative;

}



protected function exclude_single(&$match) {

foreach ($this->excludes as $badword) {

if (stristr($match, $badword) != false) {

return true;

}

}

return false;

}



protected function rewrite_single(&$match) {

if ($this->exclude_single($match[0])) {

return $match[0];

} else {

if (!$this->rootrelative || strstr($match[0], $this->blog_url)) {

return str_replace($this->blog_url, $this->cdn_url, $match[0]);

} else {

return $this->cdn_url . $match[0];

}

}

}



protected function include_dirs_to_pattern() {

$input = explode(',', $this->include_dirs);

if ($this->include_dirs == '' || count($input) < 1) {

return 'wp/-content|wp/-includes';

} else {

return implode('|', array_map('quotemeta', array_map('trim', $input)));

}

}



public function rewrite(&$content) {

$dirs = $this->include_dirs_to_pattern();

$regex = '#(?<=[(/"/'])';

$regex .= $this->rootrelative

? ('(?:'.quotemeta($this->blog_url).')?')

: quotemeta($this->blog_url);

$regex .= '/(?:((?:'.$dirs.')[^/"/')]+)|([^//"/']+/.[^//"/')]+))(?=[/"/')])#';

return preg_replace_callback($regex, array(&$this, 'rewrite_single'), $content);

}



}