454 lines
18 KiB
JavaScript
454 lines
18 KiB
JavaScript
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/**
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* cn-certkeeper —— 国内机上的证书自动续期服务。
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*
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* 为什么要有它（2026-10-06 定）：
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* Workers 免费版 CPU 硬顶 10 ms，付费版 $5/月（≈¥36）。实测一次完整签发
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* 的密码学工作量约 3~4 ms（本地 Node），乘上「Workers 比本地慢」的系数后
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* 正好擦着 10 ms 的上限跑 —— 与其花每月 36 块去买「不擦边」，不如把签发
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* 这一坨放到**本来就在跑的国内机**上（那边 CPU 不受限，Docker 也现成）。
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* 于是：Worker 只留探针 / UI / 环境自检（轻量，免费版绰绰有余），
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* 签发 + 部署整条链路搬到这台机器。
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*
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* ★ 业务代码一行没改：直接复用 blog-admin 编译出来的 lib/*.js
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* （`npm run selftest:ssl:build` 的产物）。那套代码只用
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* crypto / fetch / btoa / atob / Request / Response / TextEncoder，
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* 全是 Node 20+ 的全局 API；存储那层用 kv-file.mjs 补了个文件版 KVNamespace。
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*
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* 职责：
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* · 每天定时（默认 04:10）跑一次续期检查 —— 先探针查剩余天数，
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* ≤ RENEW_BEFORE_DAYS(30) 才真去签发，签完自动部署到多吉云 / 1Panel
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* · 带鉴权的 HTTP 接口，供人工触发与查看状态
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* · 探针走**本机 node:tls**（国内机是真 Node，getPeerCertificate 可用），
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* 所以能拿到线上证书的真实到期日 —— 这一步在 Worker 上做不到
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* （Workers 的 node:tls 是桩函数，实测抛 "getPeerCertificate is not implemented"）
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*/
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import http from 'node:http';
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import fs from 'node:fs';
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import path from 'node:path';
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import { createRequire } from 'node:module';
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import { fileURLToPath } from 'node:url';
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import { FileKV } from './kv-file.mjs';
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const HERE = path.dirname(fileURLToPath(import.meta.url));
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const LIB_DIR = path.resolve(HERE, '../lib');
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const require = createRequire(import.meta.url);
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const lib = (name) => require(path.join(LIB_DIR, `${name}.js`));
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// ---------------------------------------------------------------- 配置
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const DATA_DIR = process.env.DATA_DIR || '/data';
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const PORT = Number(process.env.PORT || 8019);
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const HOST = process.env.HOST || '127.0.0.1';
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const AUTH_TOKEN = String(process.env.AUTH_TOKEN || '').trim();
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const TOKEN_SECRET = String(process.env.TOKEN_SECRET || '').trim();
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const RENEW_HOUR = Number(process.env.RENEW_HOUR ?? 4);
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const RENEW_MINUTE = Number(process.env.RENEW_MINUTE ?? 10);
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const RUN_ON_START = String(process.env.RUN_ON_START ?? 'check').toLowerCase(); // check | renew | off
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const PROBE_TIMEOUT_MS = Number(process.env.PROBE_TIMEOUT_MS || 8000);
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if (!AUTH_TOKEN) {
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console.error('[cn-certkeeper] 缺少 AUTH_TOKEN —— 拒绝以无鉴权状态启动');
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process.exit(1);
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}
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if (!TOKEN_SECRET) {
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console.error('[cn-certkeeper] 缺少 TOKEN_SECRET —— 保险箱解不开凭据，签发必然失败');
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process.exit(1);
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}
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// ---------------------------------------------------------------- 加载 lib
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let renewAll;
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let RENEW_BEFORE_DAYS;
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let loadConfig;
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let loadLog;
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let probeTls;
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let daysLeft;
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let parsePemInfo;
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try {
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({ renewAll, RENEW_BEFORE_DAYS } = lib('certissue'));
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({ loadConfig, loadLog } = lib('certstore'));
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({ probeTls, daysLeft, parsePemInfo } = lib('certprobe'));
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} catch (e) {
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console.error('[cn-certkeeper] 加载 lib 失败：', e instanceof Error ? e.message : e);
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console.error(' —— 确认 lib/ 目录已随镜像一起打进（编译产物来自 `npm run selftest:ssl:build`）');
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process.exit(1);
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}
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// ---------------------------------------------------------------- env（对齐 Worker 的 Env）
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const kv = new FileKV(DATA_DIR);
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const env = {
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RSS_KV: kv,
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TOKEN_SECRET,
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// ★ 留空 → probeTls 跳过「调国内机 editor-api」那一跳，直接走本机 node:tls。
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// 这台机器就是「国内机」本身，没有理由再绕一次 HTTP。
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EDITOR_API_BASE: '',
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EDITOR_TOKEN: '',
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};
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// ---------------------------------------------------------------- 工具
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const pad = (n) => String(n).padStart(2, '0');
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/** 按**本地时区**格式化 —— 容器里设了 TZ=Asia/Shanghai，所以打出来就是北京时间。
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* ★ 别用 toISOString()：那是 UTC，日志写着「04:10 续期」而人看到的是 12:10，对不上。 */
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const fmt = (d) =>
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`${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}:${pad(d.getSeconds())}`;
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const ts = () => fmt(new Date());
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const log = (...a) => console.log(`[${ts()}] [cn-certkeeper]`, ...a);
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const j = (obj) => JSON.stringify(obj, null, 1);
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/** 只读检查：逐域名握手看真实剩余天数，**不签发、不写 DNS、不改站点** */
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async function checkAll() {
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const cfg = await loadConfig(env);
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const out = [];
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for (const d of cfg.domains) {
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if (d.disabled) {
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out.push({ name: d.name, skipped: true, reason: '域名已停用' });
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continue;
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}
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const host = d.san.find((s) => !s.startsWith('*.')) || d.name;
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const t0 = Date.now();
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const live = await probeTls(host, PROBE_TIMEOUT_MS);
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const left = daysLeft(live.notAfter);
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out.push({
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name: d.name,
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host,
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ok: !!live.ok,
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probeMs: Date.now() - t0,
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notAfter: live.notAfter ? new Date(live.notAfter).toISOString() : null,
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daysLeft: left,
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issuer: live.issuer || null,
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subject: live.subject || null,
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tlsVersion: live.tlsVersion || null,
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needRenew: left === null ? true : left <= RENEW_BEFORE_DAYS,
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error: live.error || null,
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});
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}
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return out;
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}
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/**
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* 凭据预检（**只读**）：确认每条凭据真的能调通对面的 API。
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*
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* 为什么必须有：配错了凭据，症状是「等到续期那天才发现签不出来」——
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* 而那时候线上证书可能已经只剩几天。这里把它提前到「随时可查」。
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* 对应 Worker 侧的 `/ssl/selfcheck`，但那边受 Workers 运行时限制
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* （拿不到证书正文、CF token 缺 DNS 权限），这边的检查更完整。
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*
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* 全程不做任何写操作：CA 只读目录、DNS 只 list、部署目标只 ping。
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*/
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async function preflight() {
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const { AcmeClient } = lib('acme');
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const { getAccess, listAccess } = lib('certstore');
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const { makeDnsProvider } = lib('dnsprovider');
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const { makeDeployer } = lib('deployer');
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const errText = (e) => (e instanceof Error ? e.message : String(e));
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const out = [];
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const cfg = await loadConfig(env);
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// ---- ① CA：目录可达性 + 是否强制 EAB ----
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const all = await listAccess(env);
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for (const item of all) {
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if (item.type !== 'acme-eab') continue;
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const rec = await getAccess(env, item.name);
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const url = String(rec?.directoryUrl || '');
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try {
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if (!url) throw new Error('缺少 directoryUrl');
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const c = new AcmeClient(url, { jwk: {}, kid: '' });
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const needEab = await c.externalAccountRequired();
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const kid = String(rec?.eabKid || '');
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out.push({
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kind: 'ca',
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name: item.name,
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ok: true,
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detail: `目录可达（${url.replace(/^https?:\/\//, '').split('/')[0]}）；EAB ${
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needEab ? `必需，kid=${kid.slice(0, 8)}…` : '非必需'
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}`,
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});
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} catch (e) {
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out.push({ kind: 'ca', name: item.name, ok: false, detail: `${errText(e)}（${url || '未配 URL'}）` });
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}
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}
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// ---- ② DNS：只 list 一条 _acme-challenge ----
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for (const d of cfg.domains) {
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const host = d.san.find((s) => !s.startsWith('*.')) || d.name;
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const rec = await getAccess(env, d.dns);
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if (!rec) {
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out.push({ kind: 'dns', name: d.dns, ok: false, detail: '凭据不存在' });
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continue;
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}
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try {
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const p = makeDnsProvider(rec);
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const vals = await p.listTxt(`_acme-challenge.${host}`);
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out.push({ kind: 'dns', name: `${d.dns} → ${host}`, ok: true, detail: `可读，现存 TXT ${vals.length} 条` });
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} catch (e) {
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const m = errText(e);
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// DNSPod 在「这个子域下没有 TXT」时回 ResourceNotFound.NoDataOfRecord ——
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// 这是**健康**信号（上次签完清干净了），不是错误。
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const healthy = /NoDataOfRecord/i.test(m);
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out.push({
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kind: 'dns',
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name: `${d.dns} → ${host}`,
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ok: healthy,
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detail: healthy ? '可读，该名字下无现存 TXT（正常）' : m,
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});
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}
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}
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// ---- ③ 部署目标：只 ping ----
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const targets = new Set();
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for (const d of cfg.domains) for (const t of d.deploy || []) targets.add(t);
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for (const target of targets) {
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const credName = target === '1panel' ? '1panel-cn' : target;
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const rec = await getAccess(env, credName);
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if (!rec) {
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out.push({ kind: 'deploy', name: credName, ok: false, detail: '凭据不存在' });
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continue;
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}
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try {
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const dp = makeDeployer(rec);
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if (typeof dp.ping === 'function') {
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// ★ ping 的约定是「返回 {ok,error,hint,detail} 而**不抛错**」。
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// 第一版直接 String(r) 打成了 `[object Object]`，更糟的是把 r.ok=false
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// 也记成通过 —— 那这个预检就等于白做。必须读 r.ok。
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const r = await dp.ping();
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const detail = r.ok
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? r.detail || 'API 可达'
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: `${r.error || '未知错误'}${r.hint ? ' —— ' + r.hint : ''}`;
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out.push({ kind: 'deploy', name: credName, ok: !!r.ok, detail });
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} else {
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out.push({ kind: 'deploy', name: credName, ok: true, detail: '（该适配器未实现 ping，已跳过）' });
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}
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} catch (e) {
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out.push({ kind: 'deploy', name: credName, ok: false, detail: errText(e) });
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}
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}
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return out;
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}
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/** 真跑一次续期（内部分支：探针→签发→部署） */
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async function runRenew(opts = {}) {
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const started = Date.now();
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log(`开始续期检查（by=${opts.by || 'cron'}${opts.force ? ' force' : ''}${opts.noDeploy ? ' noDeploy' : ''}）`);
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const results = await renewAll(env, { by: opts.by || 'cn-certkeeper', force: opts.force, noDeploy: opts.noDeploy });
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for (const r of results) {
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const tag = r.skipped ? '跳过' : r.ok ? '成功' : '失败';
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log(` ${r.domain}: ${tag} — ${r.reason}`);
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}
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const ms = Date.now() - started;
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log(`续期检查结束，用时 ${(ms / 1000).toFixed(1)}s`);
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return { results, ms };
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}
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// ---------------------------------------------------------------- 并发闸
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let busy = null; // Promise | null
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function withLock(name, fn) {
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if (busy) return Promise.reject(new Error(`已有任务在执行中（${busy.name}），请稍后再试`));
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const p = (async () => {
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try {
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return await fn();
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} finally {
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busy = null;
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}
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})();
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p.name = name;
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busy = p;
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return p;
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}
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// ---------------------------------------------------------------- HTTP
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function readBody(req, limit = 64 * 1024) {
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return new Promise((resolve, reject) => {
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let n = 0;
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const chunks = [];
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req.on('data', (c) => {
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n += c.length;
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if (n > limit) {
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reject(new Error('请求体过大'));
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req.destroy();
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return;
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}
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chunks.push(c);
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});
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req.on('end', () => {
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const s = Buffer.concat(chunks).toString('utf8').trim();
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if (!s) return resolve({});
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try {
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resolve(JSON.parse(s));
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} catch {
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reject(new Error('请求体不是合法 JSON'));
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}
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});
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req.on('error', reject);
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});
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}
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function authed(req) {
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const h = req.headers['x-auth-token'];
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if (h && h === AUTH_TOKEN) return true;
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const a = String(req.headers.authorization || '');
|
|||
|
|
if (a.startsWith('Bearer ') && a.slice(7) === AUTH_TOKEN) return true;
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function send(res, code, obj) {
|
|||
|
|
const body = j(obj);
|
|||
|
|
res.writeHead(code, {
|
|||
|
|
'Content-Type': 'application/json; charset=utf-8',
|
|||
|
|
'Content-Length': Buffer.byteLength(body),
|
|||
|
|
'Cache-Control': 'no-store',
|
|||
|
|
});
|
|||
|
|
res.end(body);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
const server = http.createServer(async (req, res) => {
|
|||
|
|
const url = new URL(req.url || '/', 'http://localhost');
|
|||
|
|
const p = url.pathname.replace(/\/+$/, '') || '/';
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
// health 免鉴权（探活/监控用，不吐任何敏感信息）
|
|||
|
|
if (p === '/health' && req.method === 'GET') {
|
|||
|
|
let domains = null;
|
|||
|
|
try {
|
|||
|
|
domains = (await loadConfig(env)).domains.length;
|
|||
|
|
} catch {
|
|||
|
|
/* 配置还没建好也要能探活 */
|
|||
|
|
}
|
|||
|
|
return send(res, 200, { ok: true, service: 'cn-certkeeper', dataDir: DATA_DIR, domains, busy: !!busy });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!authed(req)) return send(res, 401, { ok: false, error: '未授权（需要 X-Auth-Token 或 Bearer）' });
|
|||
|
|
|
|||
|
|
// 只读：查每个域名的真实剩余天数
|
|||
|
|
if (p === '/status' && req.method === 'GET') {
|
|||
|
|
const domains = await checkAll();
|
|||
|
|
return send(res, 200, { ok: true, renewBeforeDays: RENEW_BEFORE_DAYS, domains });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 执行续期
|
|||
|
|
if (p === '/renew' && req.method === 'POST') {
|
|||
|
|
const body = await readBody(req);
|
|||
|
|
const out = await withLock('renew', () => runRenew({ by: 'http', force: !!body.force, noDeploy: !!body.noDeploy }));
|
|||
|
|
return send(res, 200, { ok: true, ...out });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 只要探针判断（不签发）
|
|||
|
|
if (p === '/renew-check' && req.method === 'GET') {
|
|||
|
|
const domains = await checkAll();
|
|||
|
|
const need = domains.filter((d) => d.needRenew && !d.skipped);
|
|||
|
|
return send(res, 200, {
|
|||
|
|
ok: true,
|
|||
|
|
renewBeforeDays: RENEW_BEFORE_DAYS,
|
|||
|
|
needRenew: need.map((d) => d.name),
|
|||
|
|
domains,
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 凭据预检（只读）：CA 目录 / DNS 只读列举 / 部署目标 ping
|
|||
|
|
if (p === '/preflight' && req.method === 'GET') {
|
|||
|
|
const items = await preflight();
|
|||
|
|
const bad = items.filter((x) => !x.ok);
|
|||
|
|
return send(res, 200, { ok: bad.length === 0, passed: items.length - bad.length, total: items.length, items });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 执行日志
|
|||
|
|
if (p === '/log' && req.method === 'GET') {
|
|||
|
|
const limit = Math.min(Number(url.searchParams.get('limit') || 50), 200);
|
|||
|
|
const entries = (await loadLog(env)).slice(0, limit);
|
|||
|
|
return send(res, 200, { ok: true, count: entries.length, entries });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 数据目录概览（不返回任何凭据内容）
|
|||
|
|
if (p === '/data' && req.method === 'GET') {
|
|||
|
|
const names = (await kv.list({ prefix: 'certkeeper:access:' })).keys.map((k) =>
|
|||
|
|
k.name.replace('certkeeper:access:', ''),
|
|||
|
|
);
|
|||
|
|
const certs = (await kv.list({ prefix: 'certkeeper:cert:' })).keys.map((k) =>
|
|||
|
|
k.name.replace('certkeeper:cert:', ''),
|
|||
|
|
);
|
|||
|
|
let cfg = null;
|
|||
|
|
try {
|
|||
|
|
const c = await loadConfig(env);
|
|||
|
|
cfg = { version: c.version, domains: c.domains.map((d) => d.name), notifyTo: c.notify.emails };
|
|||
|
|
} catch (e) {
|
|||
|
|
cfg = { error: e instanceof Error ? e.message : String(e) };
|
|||
|
|
}
|
|||
|
|
return send(res, 200, { ok: true, dataDir: DATA_DIR, access: names, certs, config: cfg });
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return send(res, 404, { ok: false, error: `没有这个接口：${req.method} ${p}` });
|
|||
|
|
} catch (e) {
|
|||
|
|
log('请求出错：', e instanceof Error ? e.message : e);
|
|||
|
|
return send(res, 500, { ok: false, error: e instanceof Error ? e.message : String(e) });
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// ---------------------------------------------------------------- 定时
|
|||
|
|
function scheduleDaily(hour, minute, fn) {
|
|||
|
|
const arm = () => {
|
|||
|
|
const now = new Date();
|
|||
|
|
const next = new Date(now);
|
|||
|
|
next.setHours(hour, minute, 0, 0);
|
|||
|
|
if (next <= now) next.setDate(next.getDate() + 1);
|
|||
|
|
const delay = next.getTime() - now.getTime();
|
|||
|
|
log(`下次自动续期：${fmt(next)}（${(delay / 3600000).toFixed(1)} 小时后）`);
|
|||
|
|
// setTimeout 的上限是 2^31-1 ms ≈ 24.8 天，一天一次不会碰到
|
|||
|
|
setTimeout(() => {
|
|||
|
|
withLock('cron', () => fn()).catch((e) => log('定时任务出错：', e instanceof Error ? e.message : e));
|
|||
|
|
arm(); // 跑完再排下一次（不用 setInterval：避免上一次没跑完就叠上下一次）
|
|||
|
|
}, delay);
|
|||
|
|
};
|
|||
|
|
arm();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ---------------------------------------------------------------- 启动
|
|||
|
|
process.on('unhandledRejection', (e) => log('未处理的 Promise 拒绝（已忽略，不退出进程）：', e));
|
|||
|
|
process.on('uncaughtException', (e) => log('未捕获异常（已忽略，不退出进程）：', e));
|
|||
|
|
|
|||
|
|
server.listen(PORT, HOST, () => {
|
|||
|
|
log(`已启动，监听 http://${HOST}:${PORT}`);
|
|||
|
|
log(`数据目录 ${DATA_DIR}；续期阈值 ${RENEW_BEFORE_DAYS} 天；每日 ${RENEW_HOUR}:${String(RENEW_MINUTE).padStart(2, '0')}`);
|
|||
|
|
|
|||
|
|
// 启动自检：先确认数据目录读得出、凭据解得开 —— 配错了现在就要吼，别等到凌晨
|
|||
|
|
(async () => {
|
|||
|
|
try {
|
|||
|
|
const cfg = await loadConfig(env);
|
|||
|
|
log(`配置就绪：${cfg.domains.length} 组域名 → ${cfg.domains.map((d) => d.name).join(', ')}`);
|
|||
|
|
const names = (await kv.list({ prefix: 'certkeeper:access:' })).keys.map((k) =>
|
|||
|
|
k.name.replace('certkeeper:access:', ''),
|
|||
|
|
);
|
|||
|
|
log(`凭据 ${names.length} 条：${names.join(', ')}`);
|
|||
|
|
|
|||
|
|
if (RUN_ON_START !== 'off') {
|
|||
|
|
const st = await checkAll();
|
|||
|
|
for (const d of st) {
|
|||
|
|
if (d.skipped) {
|
|||
|
|
log(` ${d.name}: 已停用`);
|
|||
|
|
} else if (d.ok) {
|
|||
|
|
log(` ${d.name}: 线上证书 ${d.daysLeft} 天后到期（${d.notAfter}，${d.issuer || '?'}）`);
|
|||
|
|
} else {
|
|||
|
|
log(` ${d.name}: 探测失败 — ${d.error}`);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (RUN_ON_START === 'renew') {
|
|||
|
|
await withLock('onstart', () => runRenew({ by: 'onstart' })).catch((e) => log('启动续期出错：', e.message));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
scheduleDaily(RENEW_HOUR, RENEW_MINUTE, () => runRenew({ by: 'cron' }));
|
|||
|
|
} catch (e) {
|
|||
|
|
log('★ 启动自检失败：', e instanceof Error ? e.message : e);
|
|||
|
|
log(' 如果是「配置不是合法 JSON」或「找不到 config」，先跑一次导出脚本：');
|
|||
|
|
log(' node tools/export-certkeeper-data.mjs --out <数据目录>');
|
|||
|
|
}
|
|||
|
|
})();
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// 优雅退出：容器 stop 时别留下半个临时文件
|
|||
|
|
for (const sig of ['SIGTERM', 'SIGINT']) {
|
|||
|
|
process.on(sig, () => {
|
|||
|
|
log(`收到 ${sig}，退出`);
|
|||
|
|
server.close(() => process.exit(0));
|
|||
|
|
setTimeout(() => process.exit(0), 3000).unref();
|
|||
|
|
});
|
|||
|
|
}
|