fa-comm
Version:
303 lines (300 loc) • 14 kB
JavaScript
/** 微信服务号服务 */
let conf;
try {
conf = JSON.parse(process.argv[2]);
} catch (e) { }
if (!conf) {
try {
conf = require(process.argv[2]);
} catch (e) { }
}
const fac = require('../../index');
const log = fac.createLog('wechat');
const http = require('http');
const fs = require('fs');
const path = require('path');
const wechatComm = require('../internal/wechat');
const pWechatComm = require('../internal/private/wechat');
const xml2json = require('xml2json');
const request = require('../comm/req');
let wechatCommInstance = {};
const sdk = require('../comm/sdk');
const qs = require('querystring');
/**
* 创建HTTP Server
* @param {*} req
* @param {*} res
*/
server = http.createServer(async (req, res) => {
try {
//允许跨域请求
res.setHeader("Access-Control-Allow-Origin", "*");
//接受GET和POST请求
res.setHeader('Access-Control-Allow-Methods', 'GET, POST');
//允许的请求头部
res.setHeader('Access-Control-Allow-Headers', 'Content-Type,Content-Length, Authorization, Accept,X-Requested-With,Cookies,account_id,module,command');
//OPTIONS
if (req.method.toUpperCase() === 'OPTIONS') {
res.end();
return;
}
//解码请求URL参数
req.url = decodeURIComponent(req.url);
//请求地址
req.path = req.url.split('?')[0];
//请求参数
req.query = fac.req.getQuery(req.url.split('?')[1]);
log.info('收到请求:', {
url: req.url,
path: req.path,
method: req.method,
headers: JSON.stringify(req.ct),
size: req.total_size,
query: req.query
});
if (req.method.toUpperCase() == "POST") {
req.body = await reveiverPostData(req);
log.info(`接收到请求包：`, req.body);
if (req.path == '/') {
//调用微信Api接口
let account = conf.accounts.find(item => item.account_id == req.headers.account_id);
if (!account && req.headers.module == 'account' && req.headers.command == 'shorturl') {
account = conf.accounts[fac.random.getRandomNum(0, conf.accounts.length - 1)];
}
if (account) {
const instance = getWechatCommInstance(account);
if (instance[req.headers.module] && instance[req.headers.module][req.headers.command]) {
try {
result = await instance[req.headers.module][req.headers.command](req.body);
result = new sdk.UnifiedStyleMessage(result);
} catch (e) {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage(e.stack || e.message)));
}
res.end(JSON.stringify(result));
}
} else {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('未配置的微信号', 404)));
}
} else if (req.path == '/verification') {
try {
// let result = req.body.decrypt();
// log.info('验证后的微信信息：', result);
// //result = `[expire_wui]${account.expire_wui}[/expire_wui][ts]${new Date().valueOf()}[/ts][data]${JSON.stringify(result)}[/data]`;
// //'[expire_wui]60[/expire_wui][data]{"nickname":"zhou","sex":0}[/data][ts]12345678[/ts]'
// if (
// result.indexOf('[expire_wui]') > -1 && result.indexOf('[/expire_wui]') > -1 &&
// result.indexOf('[ts]') > -1 && result.indexOf('[/ts]') > -1 &&
// result.indexOf('[data]') > -1 && result.indexOf('[/data]') > -1
// ) {
// //微信用户信息有效期校验
// let expire_wui = result.substr(result.indexOf('[expire_wui]') + 12);
// expire_wui = expire_wui.substr(0, expire_wui.indexOf('[/expire_wui]'));
// let ts = result.substr(result.indexOf('[ts]') + 4);
// ts = ts.substr(0, ts.indexOf('[/ts]'));
// let data = result.substr(result.indexOf('[data]') + 6);
// data = data.substr(0, data.indexOf('[/data]'));
// log.info('微信用户信息有效期校验,expire_wui:', expire_wui, "ts:", ts, "data:", data);
// if (new Date().valueOf() - parseInt(ts) > parseInt(expire_wui) * 1000) {
// res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('Oauth认证过期', 402)));
// } else {
// res.end(JSON.stringify(new sdk.UnifiedStyleMessage(data)));
// }
// } else {
// res.end(JSON.stringify(new sdk.UnifiedStyleMessage(result)));
// }
const result = fac.verify.verificationWui(req.body);
if (result) {
res.end(JSON.stringify(new sdk.UnifiedStyleMessage(result)));
} else {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('Oauth认证过期', 402)));
}
} catch (e) {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('校验失败', 401)));
}
} else {
//微信推送
let account_id = req.path.split('/');
account_id = account_id[account_id.length - 1];
let account = conf.accounts.find(item => item.account_id == account_id);
if (account) {
if (pWechatComm.checkSignature(req.query.signature, req.query.timestamp, req.query.nonce, account.token)) {
//接收到微信推送
res.end('');
//转发到开发服务器
const data = JSON.stringify(req.body).encrypt();
log.info(`将有效的微信消息"${JSON.stringify(req.body)}"转换成框架信息"${data}"`);
if (account.forward && account.forward.length) {
for (const forward of account.forward) {
try {
const pushResult = await request.request({
data,
method: 'POST',
uri: forward
});
log.info("转发微信消息到" + forward + "完成", pushResult);
} catch (e) {
log.warn("转发微信消息到" + forward + "异常", e);
}
}
}
} else {
console.warn('微信消息校验失败');
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('微信校验失败', 400)));
}
} else {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('未配置的微信号', 404)));
}
}
}
if (req.method.toUpperCase() == "GET") {
if (req.path == '/') {
//帮助文档
res.writeHead(200, { 'Content-Type': 'text/html;charset=utf-8' });
var rs = fs.createReadStream(path.join(__dirname, './wechat.html'), {
encoding: 'utf8'
});
rs.on('data', function (filestream) {
res.write(filestream);
});
rs.on('end', function () {
res.end();
});
} else if (req.path == '/oauth/redirect') {
//微信Oauth2.0授权 base_url code state
let result;
let account = conf.accounts.find(item => item.account_id == req.query.state);
let base_url = req.query.base_url.decrypt();
try {
let instance = getWechatCommInstance(account);
result = await instance.oauth.user({ code: req.query.code });
// result = new sdk.UnifiedStyleMessage(result);
log.info(`获取到的用户信息：`, result);
} catch (e) {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage(e.stack || e.message)));
}
//获取用户信息
// res.redirect(base_url);
// result = qs.stringify(result);
// result = JSON.stringify(result).encrypt();
if (account.expire_wui) {
result = `[expire_wui]${account.expire_wui}[/expire_wui][ts]${new Date().valueOf()}[/ts][data]${JSON.stringify(result)}[/data]`;
} else {
result = JSON.stringify(result);
}
log.info('微信用户信息：' + result);
result = result.encrypt();
if (base_url.indexOf('?') > -1) {
base_url += "&wui=" + result;
} else {
base_url += "?wui=" + result;
}
log.info(`准备跳转到：`, base_url);
res.writeHead(200, { 'Content-Type': "text/html;charset=utf-8;" });
res.end(`\
<!DOCTYPE html> \
<html lang="en"> \
<head> \
<meta charset="UTF-8"> \
<title>Document</title> \
</head> \
<script> \
window.location.href = '${base_url}' \
</script> \
<body></body> \
</html> \
`);
} else {
//微信配置校验
let account_id = req.path.split('/');
account_id = account_id[account_id.length - 1];
let account = conf.accounts.find(item => item.account_id == account_id);
if (account) {
if (pWechatComm.checkSignature(req.query.signature, req.query.timestamp, req.query.nonce, account.token)) {
res.end(req.query.echostr || "");
} else {
console.warn('微信消息校验失败');
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('微信校验失败', 400)));
}
} else {
res.end(JSON.stringify(new sdk.UnifiedStyleErrorMessage('未配置的微信号', 404)));
}
}
}
} catch (e) {
log.error('请求处理异常:' + e.message + ',发送错误statusCode:' + (e.code || 500) + '到客户端');
res.writeHead(500);
res.end(e.message);
}
});
server.on('listening', async function () {
log.info(`fa-comm.wechat Server Start Listening on port:${conf.port}`);
});
//开始监听
server.listen(conf.port);
/**
* 接受post参数
* @param {*} req
* @returns
*/
const reveiverPostData = (req) => {
return new Promise(function (resolve, reject) {
let chuk = "", body = '';
req.on('data', function (data1) {
chuk += data1;
});
req.on("end", function () {
// //是否是微信的xml推送
// try {
// body = xml2json.toJson(chuk);
// body = JSON.parse(body).xml;
// } catch (e) {
// body = chuk;
// }
// //是否是JSON
// if (typeof body == 'string') {
// try {
// body = JSON.parse(body);
// } catch (e) {
// body = chuk;
// }
// }
// resolve(body);
body = chuk;
try {
if (body.startsWith('<xml>') && body.endsWith('</xml>')) {
log.info('检测到xml类型的消息，自动转换成JSON');
body = xml2json.toJson(body);
body = JSON.parse(body).xml;
log.info('自动转换成JSON完成');
resolve(body);
} else {
try {
log.info('尝试将请求包自动转换成JSON');
body = JSON.parse(body);
log.info('自动转换成JSON完成');
resolve(body);
} catch (e) {
log.warn('自动转换成JSON异常，使用原始包信息');
resolve(body);
}
}
} catch (e) {
log.error('转换微信服务接收到的POST参数异常，使用原始包信息：', e);
resolve(body);
}
});
});
};
/**
* 获取微信帮助类
* @param {*} account
* @returns
*/
const getWechatCommInstance = (account) => {
let instance = wechatCommInstance[account.account_id];
if (!instance) {
instance = new wechatComm(account, conf);
wechatCommInstance[account.account_id] = instance;
}
return instance;
}