2026-09-30 08:13:07 +08:00
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<?php
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/**
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* 存储门面:全站**唯一**的附件读写出口。
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*
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* 三条纪律(照 MovieLog 的教训定,别绕过):
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* ① 数据库只存「相对键」(如 avatars/ab12.jpg),绝不存完整 URL ——
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* 换域名、换桶、换前缀都不用改历史数据。
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* ② 页面绝不手拼路径,一律走 url()。
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* ③ 云端失败**自动回退本地**,绝不因云配置问题丢用户的文件。
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*/
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declare(strict_types=1);
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namespace App\Storage;
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use App\Setting;
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final class Storage
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{
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public const AVATAR_DIR = 'avatars';
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/** OSS 默认配置模板 */
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public static function ossDefaults(): array
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{
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return [
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'auth_mode' => 'ak', // ak | ecs_role
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'access_key_id' => '',
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'access_key_secret' => '',
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'bucket' => '',
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'endpoint' => '', // 例:oss-cn-beijing.aliyuncs.com(不带 https://)
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'prefix' => '', // 桶内前缀,一个桶放多个站点时用
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'ram_role_name' => '', // 留空 = 自动取实例绑定的角色
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'custom_domain' => '', // 可选,CDN / 自定义域名
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'internal_endpoint' => '1', // 服务端读取优先走内网
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'https' => '1',
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];
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}
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// ---------------- 配置读写 ----------------
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public static function driver(int $familyId): string
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{
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$d = (string)Setting::get($familyId, 'storage_driver', 'local');
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return in_array($d, ['local', 'oss'], true) ? $d : 'local';
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}
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public static function config(int $familyId): array
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{
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$raw = json_decode((string)Setting::get($familyId, 'storage_config_oss', ''), true);
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$saved = is_array($raw) ? $raw : [];
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return array_merge(self::ossDefaults(), $saved);
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}
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public static function saveConfig(int $familyId, string $driver, array $oss): void
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{
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$driver = in_array($driver, ['local', 'oss'], true) ? $driver : 'local';
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Setting::set($familyId, 'storage_driver', $driver);
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Setting::set($familyId, 'storage_config_oss',
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json_encode(array_merge(self::ossDefaults(), $oss), JSON_UNESCAPED_UNICODE));
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EcsMeta::clearCache($familyId);
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}
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/** 配置是否填齐 —— 没填齐就强制退回本地,避免「传到云端、地址却按本地算」的错配 */
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public static function configComplete(int $familyId): bool
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{
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if (self::driver($familyId) !== 'oss') {
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return true;
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}
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$c = self::config($familyId);
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$auth = ($c['auth_mode'] === 'ecs_role')
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|| (trim((string)$c['access_key_id']) !== '' && trim((string)$c['access_key_secret']) !== '');
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return $auth && trim((string)$c['bucket']) !== '' && trim((string)$c['endpoint']) !== '';
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}
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/** 实际生效的驱动(配置不全时是 local) */
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public static function effectiveDriver(int $familyId): string
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{
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$want = self::driver($familyId);
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if ($want !== 'local' && !self::configComplete($familyId)) {
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return 'local';
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}
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return $want;
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}
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private static ?StorageDriver $instance = null;
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private static ?int $instanceFor = null;
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public static function disk(int $familyId): StorageDriver
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{
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$id = self::effectiveDriver($familyId);
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if (self::$instance === null || self::$instanceFor !== $familyId || self::$instance->id() !== $id) {
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self::$instance = $id === 'oss'
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? new OssDriver($familyId, self::config($familyId))
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: new LocalDriver(FB_UPLOADS);
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self::$instanceFor = $familyId;
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}
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return self::$instance;
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}
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// ---------------- 读写 ----------------
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/** 存一个上传的文件;云端失败自动回退本地 */
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public static function putFile(int $familyId, string $srcPath, string $key, ?string $mime = null): array
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{
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$disk = self::disk($familyId);
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$r = $disk->putFile($srcPath, $key, $mime);
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if (!empty($r['ok'])) {
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return $r;
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}
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if ($disk->id() !== 'local') {
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$local = new LocalDriver(FB_UPLOADS);
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$l = $local->putFile($srcPath, $key, $mime);
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if (!empty($l['ok'])) {
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return ['ok' => true, 'error' => '', 'note' => '云端上传失败,已自动存到本地:' . $r['error']];
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}
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}
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return $r;
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}
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public static function putContents(int $familyId, string $binary, string $key, ?string $mime = null): array
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{
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$disk = self::disk($familyId);
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$r = $disk->putContents($binary, $key, $mime);
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if (!empty($r['ok'])) {
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return $r;
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}
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if ($disk->id() !== 'local') {
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$local = new LocalDriver(FB_UPLOADS);
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$l = $local->putContents($binary, $key, $mime);
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if (!empty($l['ok'])) {
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return ['ok' => true, 'error' => '', 'note' => '云端上传失败,已自动存到本地:' . $r['error']];
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}
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}
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return $r;
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}
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public static function delete(int $familyId, string $key): void
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{
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if ($key === '') {
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return;
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}
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// 两个地方都试一遍:历史文件可能只在本地
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self::disk($familyId)->delete($key);
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if (self::effectiveDriver($familyId) !== 'local') {
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(new LocalDriver(FB_UPLOADS))->delete($key);
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}
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}
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2026-09-30 09:44:55 +08:00
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/**
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* 读取内容(代理、导出等场景)。
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*
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* 读取顺序与 exists() 一致,刻意设计成「本地优先」:
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* 从本地搬到云端(或反过来)时,历史文件可能只在一边,
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* 本地优先能保证迁移期的老文件照样打得开,也让回滚随时可行。
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*/
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2026-11-05 13:06:29 +08:00
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/**
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* 读一个对象。
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*
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* @param string $process OSS 图片处理参数(如 `image/resize,l_400/quality,q_80`)。
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*
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* 🔴 #56(用户 2026-11-05):「如果图片是放在本地服务器的…就不管它。
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* 如果是传到 OSS 里面的…就用 OSS 的压缩就行了。」
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*
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* ## 两种驱动下的行为
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*
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* | 驱动 | `$process` 非空时 |
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* |---|---|
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* | `oss` | 透传给 `OssDriver::get()` ⇒ OSS 实时压缩 |
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* | `local` | **忽略** —— 本地没有图片处理服务,不该假装有 |
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*
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* ⚠️ 带 `$process` 时**跳过本地缓存**:那个缓存里是**原图**,
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* 拿原图当压缩版返回,等于压缩没生效而且用户以为生效了。
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* (缓存由 media.php 自己按尺寸分目录管理,见那里的说明。)
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*/
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public static function read(int $familyId, string $key, string $process = ''): array
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2026-09-30 08:13:07 +08:00
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{
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2026-11-05 13:06:29 +08:00
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/* 只有无 process 时才走"本地优先":原图有缓存就直接读,
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省掉整个 OSS round-trip。带 process 的必须去 OSS 要压缩版。 */
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if ($process === '') {
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$local = FB_UPLOADS . '/' . ltrim($key, '/');
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if ($key !== '' && is_file($local)) {
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$body = (string)@file_get_contents($local);
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return ['ok' => true, 'status' => 200, 'headers' => [], 'body' => $body,
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'error' => '', 'from' => 'local'];
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}
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2026-09-30 09:44:55 +08:00
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}
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2026-11-05 13:06:29 +08:00
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$disk = self::disk($familyId);
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/* 本地驱动不支持图片处理 ⇒ 忽略 process(用户明确要求"本地不管它") */
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if ($process === '' || $disk->id() !== 'oss') {
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return $disk->get($key);
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}
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return $disk->get($key, [], $process);
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2026-09-30 08:13:07 +08:00
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}
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public static function exists(int $familyId, string $key): bool
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{
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if ($key === '') {
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return false;
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}
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if (is_file(FB_UPLOADS . '/' . $key)) {
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return true; // 本地优先(迁移期两者并存)
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}
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return self::disk($familyId)->exists($key);
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}
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2026-10-14 01:20:40 +08:00
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/**
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* 把刚取到的内容**回写一份到本地磁盘**,给下一次读用。
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*
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* 🔴 v47(用户 2026-10-13):「读书现在还是非常慢,这个问题需要彻底解决。」
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* 实测:书架 35 张封面,每张 0.15~0.53s 去 OSS 取,**每次访问都重新取**。
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* `read()` 本来就是"本地优先",但**只读不写** ⇒ OSS 上那份永远要远程拿。
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* 这里补上"写回",于是第二次起直接命中本地文件(0 次远程调用)。
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*
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* ⚠️ 只给**图片**用(调用方判断)。理由:
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* · 图片是"反复读、几乎不写、内容不变"的典型 —— 缓存收益最大;
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* · 附件/原书文件可能是几十上百 MB,缓存它们会把磁盘吃满,
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* 而且下载本来就是低频、一次性的事,缓存它没有意义。
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*
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* ⚠️ **绝不因为缓存失败而影响这次请求**:磁盘满、权限不对、路径怪,
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* 一律静默跳过 —— 缓存是纯优化,不是功能。
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*
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* @return bool 真的写成功了吗(调用方一般不关心)
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*/
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public static function cacheLocally(string $key, string $binary): bool
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{
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$key = ltrim(str_replace('\\', '/', $key), '/');
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if ($key === '' || $binary === '') {
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return false;
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}
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// 与 media.php 同一条键净化判据:拒绝 `..`、绝对路径、点文件
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if (strpos($key, "\0") !== false || strpos($key, '..') !== false
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|| !preg_match('#^[A-Za-z0-9][A-Za-z0-9._/-]*$#', $key)) {
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return false;
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}
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foreach (explode('/', $key) as $seg) {
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if ($seg === '' || $seg === '.' || $seg[0] === '.') {
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return false;
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}
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}
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$dst = FB_UPLOADS . '/' . $key;
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// 已经有了就不重复写(两个请求同时到也不会互相踩:内容一样)
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if (is_file($dst) && filesize($dst) === strlen($binary)) {
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return true;
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}
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$dir = dirname($dst);
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if (!is_dir($dir)) {
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if (!@mkdir($dir, 0775, true) && !is_dir($dir)) {
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return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
// 先写临时文件再 rename:避免"写了一半被另一个请求读到"(读到半张图)
|
|
|
|
|
|
$tmp = $dst . '.tmp' . getmypid();
|
|
|
|
|
|
if (@file_put_contents($tmp, $binary) === false) {
|
|
|
|
|
|
@unlink($tmp);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
if (!@rename($tmp, $dst)) {
|
|
|
|
|
|
@unlink($tmp);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
@chmod($dst, 0664);
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2026-09-30 08:13:07 +08:00
|
|
|
|
/**
|
|
|
|
|
|
* **唯一出口**:把相对键变成可访问地址。
|
|
|
|
|
|
*
|
2026-09-30 09:44:55 +08:00
|
|
|
|
* ⚠️ 现在一律指向 `media.php` 代理,不再直接给 uploads/ 或 OSS 的地址:
|
|
|
|
|
|
* · 统一:本地与云端的差别被代理吃掉,前端只认一个地址形态;
|
|
|
|
|
|
* · 安全:桶可以设成私有、uploads/ 可以整个封死,能否看到附件由**登录态**决定,
|
|
|
|
|
|
* 而不是"知道文件名就能看";
|
|
|
|
|
|
* · 标准:Content-Type / 缓存 / 下载头由服务端统一给。
|
|
|
|
|
|
*
|
|
|
|
|
|
* 为什么保留这个方法:`media.php` 自己不调它(它用 read() 取字节),
|
|
|
|
|
|
* 所以不存在自递归;留在这里是为了让"谁想把键变成地址"永远只有一条路。
|
2026-09-30 08:13:07 +08:00
|
|
|
|
*/
|
|
|
|
|
|
public static function url(int $familyId, ?string $key): string
|
|
|
|
|
|
{
|
|
|
|
|
|
$key = trim((string)$key);
|
|
|
|
|
|
if ($key === '') {
|
|
|
|
|
|
return asset('/assets/avatar-default.svg');
|
|
|
|
|
|
}
|
|
|
|
|
|
if (preg_match('#^https?://#i', $key)) {
|
|
|
|
|
|
return $key;
|
|
|
|
|
|
}
|
2026-09-30 09:44:55 +08:00
|
|
|
|
return \media_url($key);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* 直接拿「已保存的 OSS 配置」建一个 OSS 驱动来做连通性诊断。
|
|
|
|
|
|
*
|
|
|
|
|
|
* 与 disk() 的区别很重要:disk() 会按 effectiveDriver() 决定用哪个驱动,
|
|
|
|
|
|
* 当前选的是"本地"时就只会给你 LocalDriver —— 于是**用户没法在切到 OSS 之前
|
|
|
|
|
|
* 先把 OSS 测通**,只能"先切换、发现不行、再切回来"。这里绕开那个判断。
|
|
|
|
|
|
*/
|
|
|
|
|
|
public static function ossDiskForDiagnosis(int $familyId): ?OssDriver
|
|
|
|
|
|
{
|
|
|
|
|
|
$cfg = self::config($familyId);
|
|
|
|
|
|
$driver = new OssDriver($familyId, $cfg);
|
|
|
|
|
|
return $driver->validateConfig() === '' ? $driver : null;
|
2026-09-30 08:13:07 +08:00
|
|
|
|
}
|
|
|
|
|
|
}
|