WordPress发布/更新文章、提交/审核评论自动清理VeryCloud缓存

建站笔记1年前 (2023)发布 小萝卜头
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上一篇文章分享了WordPress 发布文章评论自动刷新腾讯云 CDN 的教程,而博客现在还用到了 VeryCloud 的 CDN,正好有朋友在文章后面留言说 VC 也有刷新缓存的 API,于是就利用中午的时间折腾了下,成功搞定!
下面分享一下部署方法。
/**
* WordPress 发布/更新文章、提交/审核评论自动清理 VeryCloud CDN 缓存(首页、分类以及当前文章) By 张戈博客
* 文章地址:https://zhang.ge/5090.html
* 转载请保留出处,谢谢合作!
**/

//发布、更新文章刷新缓存
add_action(‘publish_post’, ‘refresh_By_Publish’, 0);
//提交评论刷新缓存
add_action(‘comment_post’, ‘refresh_By_Comments’,0);
//审核评论刷新缓存
add_action(‘comment_unapproved_to_approved’, ‘refresh_By_Approved’,0);

define(‘CRYPT_SALT’, ‘verycloud#cryptpass’);
$cdn_provider = array(
“verycdn” => array(
“push” => “https://api3.verycloud.cn/API/cdn/refresh”,
“token” => “https://api3.verycloud.cn/API/OAuth/authorize”,
“username” => “此处填写 verycloud 用户名”,
“password” => “此处填写 verycloud 密码”,
),
);

//发布文章更新文章、分类和首页的缓存函数
function refresh_By_Publish($post_ID)
{
$pageurl = get_permalink($post_ID);
$homeurl = home_url();

$category = get_the_category();
if($category[0]){
//如果文章属于多个分类,默认只刷新第一个分类地址
$caturl = get_category_link($category[0]->term_id );
$url = $pageurl . ‘,’ . $caturl . ‘,’ . $homeurl;
} else {
$url = $pageurl . ‘,’ . $homeurl;
}

$data = array(
‘type’ => ‘file’,
‘urls’ => $url
);
refresh($data);
}

//提交评论刷新当前文章 CDN 缓存
function refresh_By_Comments($comment_id)
{
$comment = get_comment($comment_id);
$url = get_permalink($comment->comment_post_ID);

$data = array(
‘type’ => ‘file’,
‘urls’ => $url,
);
refresh($data);
}

//审核评论刷新当前文章 CDN 缓存
function refresh_By_Approved($comment)
{
$url = get_permalink($comment->comment_post_ID);
$data = array(
‘type’ => ‘file’,
‘urls’ => $url,
);
refresh($data);
}

function post_data($url, $data, $type = “POST”) {
$ch = curl_init();

// 使用 TLS1.0
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 1 );
curl_setopt($ch, CURLOPT_POST, true);

if ( $type == “POST” ) {
$parm_string = http_build_query($data, ‘&’);
curl_setopt($ch, CURLOPT_POSTFIELDS, $parm_string);
} else {
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
$output = curl_exec($ch);
curl_close($ch);
return $output;
}

//生成 tokens
function get_verycdn_token() {
global $cdn_provider;
$post_data[“username”] = $cdn_provider[“verycdn”][“username”];
$post_data[“password”] = encrypt($cdn_provider[“verycdn”][“password”]);

$res = post_data($cdn_provider[“verycdn”][“token”], $post_data);

$result = json_decode($res);
return $result->access_token;
//var_dump($post_data);
//var_dump($result);
}

function encrypt($txtStream) {
//以下行中的字符串可能需要找客服提供,具体请自行试试。
$lockstream = ‘st=lDEFABCNOPyzghi_jQRST-UwxkVWXYZabcdefIJK6/7nopqr89LMmGH012345uv’;
$lockLen = strlen($lockstream);
$lockCount = rand(0, $lockLen-1);
$randomLock = $lockstream[$lockCount];
$password = md5(CRYPT_SALT . $randomLock);
$txtStream = base64_encode($txtStream);
$tmpStream = ”;
$i = 0; $j = 0; $k = 0;
for($i = 0; $i < strlen($txtStream); $i++) {
$k = ($k == strlen($password)) ? 0 : $k;
$j = (strpos($lockstream, $txtStream[$i]) + $lockCount + ord($password[$k])) % ($lockLen);
$tmpStream .= $lockstream[$j];
$k++;
}
return $tmpStream . $randomLock;
}

/**
* 提交刷新
* @param $data
* @return array
*/
function refresh($data) {
global $cdn_provider;
$token = get_verycdn_token();
if(!$token) {
return array(
‘code’ => 0,
‘message’ => ‘unable to get token’
);
}
//刷新类型 file 文件 dir 目录
$type = isset($data[‘type’]) && !empty($data[‘type’]) ? trim($data[‘type’]) : ”;
//刷新 url
$urls = isset($data[‘urls’]) && !empty($data[‘urls’]) ? $data[‘urls’] : ”;
//url 分隔符,多个 url 使用该符号分隔,默认,
$partition = isset($data[‘partition’]) && !empty($data[‘partition’]) ? trim($data[‘partition’]) : ‘,’;
if(empty($type) || empty($urls)) {
return array(
‘code’ => 0,
‘message’ => ‘type and urls are required’,
);
}

$url = $cdn_provider[“verycdn”][“push”];

$send_data = array(
‘token’ => $token,
‘type’ => $type,
‘urls’ => $urls,
‘partition’ => $partition
);

$return = post_data($url, $send_data);
return $return;
}
将以上代码粘贴到 WordPress 主题 functions.php 中,然后将 19,20 行对应的中文改成 VeryCloud 的用户名和密码,保存即可。
Ps:貌似 VC 的缓存刷新 API 暂时还没完全公开,如果需要部署这个功能,需要联系客服,然后告知需要使用这个刷新 CDN 缓存的 API,然后提供以下用户名给他就好了。而且代码中的 lockstream 的值可能需要 VC 客服提供,如果发现上述代码无法成功,请自行咨询 VC 客服。
部署好了之后,可以去更新文章或提交评论,然后登陆 VeryCloud 云分发后台,即可看到提交记录:

至此,说明你已部署成功。
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