136 lines
4.7 KiB
JavaScript
136 lines
4.7 KiB
JavaScript
const express = require('express')
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const bodyParser = require('body-parser')
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const cors = require('cors')
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const fs = require('fs').promises
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const path = require('path')
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const fetch = require('node-fetch')
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const PORT = process.env.PORT || 7301
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const DATA_DIR = path.join(__dirname, 'data')
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const DEVICES_FILE = path.join(DATA_DIR, 'push_devices.json')
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async function ensureDataDir() {
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try {
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await fs.mkdir(DATA_DIR, { recursive: true })
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try {
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await fs.access(DEVICES_FILE)
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} catch (e) {
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await fs.writeFile(DEVICES_FILE, '[]', 'utf8')
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}
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} catch (e) {
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console.error('无法创建数据目录:', e)
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process.exit(1)
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}
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}
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async function readDevices() {
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try {
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const txt = await fs.readFile(DEVICES_FILE, 'utf8')
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return JSON.parse(txt || '[]')
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} catch (e) {
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return []
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}
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}
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async function writeDevices(devices) {
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await fs.writeFile(DEVICES_FILE, JSON.stringify(devices, null, 2), 'utf8')
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}
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async function start() {
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await ensureDataDir()
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const app = express()
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app.use(cors())
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app.use(bodyParser.json())
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app.get('/health', (req, res) => res.json({ ok: true }))
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// 注册或更新设备
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app.post('/api/v1/push/register', async (req, res) => {
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const { cid, user_id, platform } = req.body || {}
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if (!cid) return res.status(400).json({ error: 'cid required' })
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const devices = await readDevices()
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let found = devices.find(d => d.cid === cid)
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const now = new Date().toISOString()
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if (found) {
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found.user_id = user_id ?? found.user_id
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found.platform = platform ?? found.platform
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found.updated_at = now
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found.active = true
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} else {
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found = { cid, user_id: user_id ?? null, platform: platform ?? null, created_at: now, updated_at: now, active: true }
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devices.push(found)
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}
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await writeDevices(devices)
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return res.json({ ok: true, cid })
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})
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// 注销设备（可选移除或置为 inactive）
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app.post('/api/v1/push/unregister', async (req, res) => {
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const { cid, user_id } = req.body || {}
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if (!cid && !user_id) return res.status(400).json({ error: 'cid or user_id required' })
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let devices = await readDevices()
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if (cid) {
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devices = devices.map(d => d.cid === cid ? Object.assign({}, d, { active: false, updated_at: new Date().toISOString() }) : d)
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} else if (user_id) {
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devices = devices.map(d => d.user_id === user_id ? Object.assign({}, d, { active: false, updated_at: new Date().toISOString() }) : d)
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}
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await writeDevices(devices)
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return res.json({ ok: true })
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})
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// 列出设备
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app.get('/api/v1/push/devices', async (req, res) => {
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const { user_id, active } = req.query
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let devices = await readDevices()
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if (user_id) devices = devices.filter(d => String(d.user_id) === String(user_id))
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if (active != null) devices = devices.filter(d => String(!!d.active) === String(active === 'true'))
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res.json({ ok: true, total: devices.length, data: devices })
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})
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// 发送推送（mock 或代理到真实 provider，当环境变量 PUSH_PROXY_URL 设置时会代理请求）
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app.post('/api/v1/push/send', async (req, res) => {
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const { cids, user_id, notification, payload } = req.body || {}
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if ((!cids || cids.length === 0) && !user_id) return res.status(400).json({ error: 'cids or user_id required' })
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let targets = []
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if (cids && cids.length > 0) targets = cids
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else if (user_id) {
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const devices = await readDevices()
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targets = devices.filter(d => String(d.user_id) === String(user_id) && d.active).map(d => d.cid)
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}
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// 如果配置了 PUSH_PROXY_URL 则转发到外部推送服务（例如 uni-push2 的服务端 API）
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const proxyUrl = process.env.PUSH_PROXY_URL || ''
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const proxyToken = process.env.PUSH_PROXY_TOKEN || ''
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if (proxyUrl) {
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try {
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const resp = await fetch(proxyUrl, {
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method: 'POST',
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headers: Object.assign({ 'Content-Type': 'application/json' }, proxyToken ? { Authorization: `Bearer ${proxyToken}` } : {}),
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body: JSON.stringify({ targets, notification, payload })
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})
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const data = await resp.text()
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return res.json({ ok: true, proxied: true, status: resp.status, response: data })
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} catch (e) {
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console.warn('代理推送失败:', e)
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return res.status(500).json({ ok: false, error: String(e) })
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}
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}
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// 否则仅记录并返回模拟结果
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console.log('Mock push to', targets.length, 'clients')
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console.log('notification:', notification)
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console.log('payload:', payload)
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return res.json({ ok: true, mocked: true, sent: targets.length })
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})
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app.listen(PORT, () => {
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console.log(`Push server listening on http://localhost:${PORT}`)
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})
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}
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start().catch(e => {
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console.error('启动失败:', e)
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process.exit(1)
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})
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