/**
* ============================================
* Modou COS 全局删除桥接器（必须全局加载）
* 放到你的主插件入口文件中
* ============================================
*/
// 你可以把这个开关改成 false，表示“仅永久删除时删 COS”
if (!defined('MODOU_COS_DELETE_ON_TRASH')) {
define('MODOU_COS_DELETE_ON_TRASH', false);
}
/**
* 判断一个附件是否“可能在 COS 上”
* - 1) 我们自己的外链索引标记
* - 2) URL 命中你配置的域名替换规则
* - 3) 你也可以按需扩展
*/
function modou_cos_is_cos_attachment($post_id) {
if (get_post_meta($post_id, '_modou_cos_is_external', true)) {
return true;
}
$url = wp_get_attachment_url($post_id);
if (!$url) return false;
$bound = trim((string) get_option('modou_cos_bound_domain', ''));
$from = get_option('modou_cos_replace_from', []);
if (!is_array($from)) {
$from = array_filter(array_map('trim', explode("\n", (string)$from)));
}
$candidates = array_filter(array_merge(
$bound ? [$bound] : [],
$from
));
if (empty($candidates)) {
// 没有域名规则就不做“猜测判定”
return false;
}
foreach ($candidates as $d) {
$d = trim($d);
if (!$d) continue;
$d = rtrim($d, '/');
if (strpos($url, $d) === 0) {
return true;
}
}
return false;
}
/**
* 获取 COS Key（尽量稳）
*/
function modou_cos_get_object_key($post_id) {
$key = trim((string) get_post_meta($post_id, 'modou_cos_key', true));
if ($key !== '') {
return $key;
}
$attached = trim((string) get_post_meta($post_id, '_wp_attached_file', true));
if ($attached !== '') {
return ltrim($attached, '/');
}
$url = (string) get_post_meta($post_id, 'modou_cos_external_url', true);
if (!$url) {
$url = wp_get_attachment_url($post_id);
}
if ($url) {
$path = wp_parse_url($url, PHP_URL_PATH);
if ($path) {
return ltrim($path, '/');
}
}
return '';
}
/**
* 使用 COS PHP SDK v5 删除（如果存在）
*/
function modou_cos_try_delete_by_sdk($key) {
if (!class_exists('\\Qcloud\\Cos\\Client')) {
return [false, 'SDK not found'];
}
$bucket = trim((string) get_option('modou_cos_bucket', ''));
$region = trim((string) get_option('modou_cos_region', ''));
$sid = trim((string) get_option('modou_cos_secret_id', ''));
$skey = trim((string) get_option('modou_cos_secret_key', ''));
if ($bucket === '' || $region === '' || $sid === '' || $skey === '') {
return [false, 'Missing COS config'];
}
try {
$client = new \Qcloud\Cos\Client([
'region' => $region,
'schema' => 'https',
'credentials' => [
'secretId' => $sid,
'secretKey' => $skey,
],
]);
$client->deleteObject([
'Bucket' => $bucket,
'Key' => $key,
]);
return [true, 'Deleted by SDK'];
} catch (\Throwable $e) {
return [false, 'SDK error: ' . $e->getMessage()];
}
}
/**
* 真正执行“尝试删 COS”
*/
function modou_cos_delete_remote_object_for_attachment($post_id, $reason = 'delete') {
// 是否开启“同步删除”开关
$enabled = (int) get_option('modou_cos_delete_remote_enabled', 0);
if (!$enabled) {
return;
}
if (get_post_type($post_id) !== 'attachment') {
return;
}
// 不是我们能识别的 COS 附件就不动
if (!modou_cos_is_cos_attachment($post_id)) {
return;
}
$key = modou_cos_get_object_key($post_id);
if ($key === '') {
error_log('[MODOU COS] Skip delete: empty key, post_id=' . $post_id);
return;
}
// 1) 先试 SDK
[$ok, $msg] = modou_cos_try_delete_by_sdk($key);
if ($ok) {
error_log('[MODOU COS] ' . $msg . ' key=' . $key . ' post_id=' . $post_id);
return;
}
// 2) 没 SDK / 配置不全 / SDK 报错
// 交给你现有 COS 插件接管
do_action('modou_cos_delete_object', $key, $post_id, $reason, $msg);
error_log('[MODOU COS] Fallback action fired. key=' . $key . ' post_id=' . $post_id . ' reason=' . $reason . ' note=' . $msg);
}
/**
* ✅ 关键：只要你在“媒体库永久删除附件”，这里一定会触发
*/
add_action('before_delete_post', function($post_id){
if (get_post_type($post_id) !== 'attachment') return;
modou_cos_delete_remote_object_for_attachment($post_id, 'before_delete_post');
}, 20);
/**
* 可选：如果你希望“丢进回收站就删 COS”
* 默认关闭，避免误删
*/
add_action('wp_trash_post', function($post_id){
if (!MODOU_COS_DELETE_ON_TRASH) return;
if (get_post_type($post_id) !== 'attachment') return;
modou_cos_delete_remote_object_for_attachment($post_id, 'wp_trash_post');
}, 20);
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