103 lines
2.9 KiB
JavaScript
103 lines
2.9 KiB
JavaScript
// 强制清除 Node.js 使用的代理环境变量，避免走 127.0.0.1:10809
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process.env.HTTP_PROXY = '';
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process.env.HTTPS_PROXY = '';
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process.env.http_proxy = '';
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process.env.https_proxy = '';
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const express = require('express');
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const crypto = require('crypto');
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const axios = require('axios');
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const app = express();
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const WECHAT_APPID = 'wx571134046e0268fc';
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const WECHAT_SECRET = 'fe427470faf04a4aa8ccb412ac0d2a29';
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let access_token = '';
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let jsapi_ticket = '';
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// 获取 access_token
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async function getAccessToken() {
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try {
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const res = await axios.get(
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`https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${WECHAT_APPID}&secret=${WECHAT_SECRET}`
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);
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if (res.data.access_token) {
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access_token = res.data.access_token;
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console.log('✅ access_token 获取成功');
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} else {
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throw new Error(JSON.stringify(res.data));
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}
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} catch (err) {
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console.error('❌ 获取 access_token 出错:', err.message);
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throw err;
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}
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}
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// 获取 jsapi_ticket
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async function getJsapiTicket() {
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try {
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const res = await axios.get(
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`https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=${access_token}&type=jsapi`
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);
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if (res.data.ticket) {
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jsapi_ticket = res.data.ticket;
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console.log('✅ jsapi_ticket 获取成功');
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} else {
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throw new Error(JSON.stringify(res.data));
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}
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} catch (err) {
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console.error('❌ 获取 jsapi_ticket 出错:', err.message);
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throw err;
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}
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}
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// 生成签名
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function createSignature(url) {
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const nonceStr = Math.random().toString(36).substr(2, 15);
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const timestamp = Math.floor(Date.now() / 1000);
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const rawStr = `jsapi_ticket=${jsapi_ticket}&noncestr=${nonceStr}×tamp=${timestamp}&url=${url}`;
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const signature = crypto.createHash('sha1').update(rawStr).digest('hex');
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return {
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appId: WECHAT_APPID,
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timestamp,
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nonceStr,
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signature
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};
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}
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// 定时刷新 token 和 ticket
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async function refreshWeChatConfig() {
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try {
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await getAccessToken();
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await getJsapiTicket();
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} catch (err) {
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console.error('❌ 微信配置刷新失败');
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}
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}
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setInterval(refreshWeChatConfig, 7000 * 1000);
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// 启动初始化
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refreshWeChatConfig();
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// 签名接口
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app.get('/api/wechat-signature', (req, res) => {
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const url = req.query.url;
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if (!url) {
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return res.status(400).json({ error: '缺少 url 参数' });
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}
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if (!jsapi_ticket) {
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return res.status(500).json({ error: 'jsapi_ticket 未准备好，请稍后重试' });
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}
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const config = createSignature(url);
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res.json(config);
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});
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// 静态资源服务
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app.use(express.static(__dirname));
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// 启动服务
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const port = 3005;
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app.listen(port, () => {
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console.log(`✅ Server running at http://localhost:${port}`);
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});
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