487 lines
16 KiB
TypeScript
487 lines
16 KiB
TypeScript
/**
|
||
* 小程序支付回调通知处理
|
||
* 微信支付成功后会调用此接口
|
||
*
|
||
* 分销规则：
|
||
* - 约90%给分发者（可在system_config配置）
|
||
* - 一级分销，只算直接推荐人
|
||
*/
|
||
|
||
import { NextResponse } from 'next/server'
|
||
import crypto from 'crypto'
|
||
import { query, getConfig } from '@/lib/db'
|
||
|
||
const WECHAT_PAY_CONFIG = {
|
||
appId: 'wxb8bbb2b10dec74aa',
|
||
mchId: '1318592501',
|
||
mchKey: 'wx3e31b068be59ddc131b068be59ddc2',
|
||
}
|
||
|
||
// 默认分成比例（90%给推广者）
|
||
const DEFAULT_DISTRIBUTOR_SHARE = 0.9
|
||
|
||
// 生成签名
|
||
function generateSign(params: Record<string, string>, key: string): string {
|
||
const sortedKeys = Object.keys(params).sort()
|
||
const signString = sortedKeys
|
||
.filter((k) => params[k] && k !== 'sign')
|
||
.map((k) => `${k}=${params[k]}`)
|
||
.join('&')
|
||
|
||
const signWithKey = `${signString}&key=${key}`
|
||
return crypto.createHash('md5').update(signWithKey, 'utf8').digest('hex').toUpperCase()
|
||
}
|
||
|
||
// 验证签名
|
||
function verifySign(params: Record<string, string>, key: string): boolean {
|
||
const receivedSign = params.sign
|
||
if (!receivedSign) return false
|
||
|
||
const data = { ...params }
|
||
delete data.sign
|
||
|
||
const calculatedSign = generateSign(data, key)
|
||
return receivedSign === calculatedSign
|
||
}
|
||
|
||
// XML转对象
|
||
function xmlToDict(xml: string): Record<string, string> {
|
||
const result: Record<string, string> = {}
|
||
const regex = /<(\w+)><!\[CDATA\[(.*?)\]\]><\/\1>/g
|
||
let match
|
||
while ((match = regex.exec(xml)) !== null) {
|
||
result[match[1]] = match[2]
|
||
}
|
||
const simpleRegex = /<(\w+)>([^<]*)<\/\1>/g
|
||
while ((match = simpleRegex.exec(xml)) !== null) {
|
||
if (!result[match[1]]) {
|
||
result[match[1]] = match[2]
|
||
}
|
||
}
|
||
return result
|
||
}
|
||
|
||
// 成功响应
|
||
const SUCCESS_RESPONSE = `<xml>
|
||
<return_code><![CDATA[SUCCESS]]></return_code>
|
||
<return_msg><![CDATA[OK]]></return_msg>
|
||
</xml>`
|
||
|
||
// 失败响应
|
||
const FAIL_RESPONSE = `<xml>
|
||
<return_code><![CDATA[FAIL]]></return_code>
|
||
<return_msg><![CDATA[ERROR]]></return_msg>
|
||
</xml>`
|
||
|
||
/**
|
||
* POST - 接收微信支付回调
|
||
*/
|
||
export async function POST(request: Request) {
|
||
try {
|
||
const xmlData = await request.text()
|
||
console.log('[PayNotify] 收到支付回调')
|
||
|
||
const data = xmlToDict(xmlData)
|
||
|
||
// 验证签名
|
||
if (!verifySign(data, WECHAT_PAY_CONFIG.mchKey)) {
|
||
console.error('[PayNotify] 签名验证失败')
|
||
return new Response(FAIL_RESPONSE, {
|
||
headers: { 'Content-Type': 'application/xml' }
|
||
})
|
||
}
|
||
|
||
// 检查支付结果
|
||
if (data.return_code !== 'SUCCESS' || data.result_code !== 'SUCCESS') {
|
||
console.log('[PayNotify] 支付未成功:', data.err_code, data.err_code_des)
|
||
return new Response(SUCCESS_RESPONSE, {
|
||
headers: { 'Content-Type': 'application/xml' }
|
||
})
|
||
}
|
||
|
||
const orderSn = data.out_trade_no
|
||
const transactionId = data.transaction_id
|
||
const totalFee = parseInt(data.total_fee || '0', 10)
|
||
const totalAmount = totalFee / 100 // 转为元
|
||
const openId = data.openid
|
||
|
||
console.log('[PayNotify] 支付成功:', {
|
||
orderSn,
|
||
transactionId,
|
||
totalFee,
|
||
openId: openId?.slice(0, 10) + '...',
|
||
})
|
||
|
||
// 解析附加数据
|
||
let attach: Record<string, string> = {}
|
||
if (data.attach) {
|
||
try {
|
||
attach = JSON.parse(data.attach)
|
||
} catch (e) {
|
||
// 忽略解析错误
|
||
}
|
||
}
|
||
|
||
const { productType, productId, userId: attachUserId } = attach
|
||
|
||
// 买家身份必须以微信 openId 为准（不可伪造），避免客户端伪造 userId 导致错误归属/分佣
|
||
let buyerUserId: string | undefined = attachUserId
|
||
if (openId) {
|
||
try {
|
||
const usersByOpenId = await query('SELECT id FROM users WHERE open_id = ?', [openId]) as any[]
|
||
if (usersByOpenId.length > 0) {
|
||
const resolvedId = usersByOpenId[0].id
|
||
if (attachUserId && resolvedId !== attachUserId) {
|
||
console.warn('[PayNotify] 买家身份校验: attach.userId 与 openId 解析不一致，以 openId 为准', {
|
||
attachUserId,
|
||
resolvedId,
|
||
orderSn,
|
||
})
|
||
}
|
||
buyerUserId = resolvedId
|
||
}
|
||
} catch (e) {
|
||
console.error('[PayNotify] 按 openId 解析买家失败:', e)
|
||
}
|
||
}
|
||
if (!buyerUserId && attachUserId) {
|
||
buyerUserId = attachUserId
|
||
}
|
||
|
||
// 1. 更新订单状态为已支付
|
||
let orderExists = false
|
||
try {
|
||
// 先查询订单是否存在
|
||
const orderRows = await query(`
|
||
SELECT id, user_id, product_type, product_id, status
|
||
FROM orders
|
||
WHERE order_sn = ?
|
||
`, [orderSn]) as any[]
|
||
|
||
if (orderRows.length === 0) {
|
||
console.warn('[PayNotify] ⚠️ 订单不存在，尝试补记:', orderSn)
|
||
|
||
// 订单不存在时，补记订单（可能是创建订单时失败了）
|
||
try {
|
||
await query(`
|
||
INSERT INTO orders (
|
||
id, order_sn, user_id, open_id,
|
||
product_type, product_id, amount, description,
|
||
status, transaction_id, pay_time, referrer_id, referral_code, created_at, updated_at
|
||
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, 'paid', ?, CURRENT_TIMESTAMP, NULL, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
|
||
`, [
|
||
orderSn, orderSn, buyerUserId || openId, openId,
|
||
productType || 'unknown', productId || '', totalAmount,
|
||
'支付回调补记订单', transactionId
|
||
])
|
||
console.log('[PayNotify] ✅ 订单补记成功:', orderSn)
|
||
orderExists = true
|
||
} catch (insertErr: any) {
|
||
const msg = insertErr?.message || ''
|
||
const code = insertErr?.code || ''
|
||
if (msg.includes('referrer_id') || msg.includes('referral_code') || code === 'ER_BAD_FIELD_ERROR') {
|
||
try {
|
||
await query(`
|
||
INSERT INTO orders (
|
||
id, order_sn, user_id, open_id,
|
||
product_type, product_id, amount, description,
|
||
status, transaction_id, pay_time, referrer_id, created_at, updated_at
|
||
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, 'paid', ?, CURRENT_TIMESTAMP, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
|
||
`, [
|
||
orderSn, orderSn, buyerUserId || openId, openId,
|
||
productType || 'unknown', productId || '', totalAmount,
|
||
'支付回调补记订单', transactionId
|
||
])
|
||
console.log('[PayNotify] ✅ 订单补记成功(无 referral_code):', orderSn)
|
||
orderExists = true
|
||
} catch (e2: any) {
|
||
if (e2?.message?.includes('referrer_id') || e2?.code === 'ER_BAD_FIELD_ERROR') {
|
||
try {
|
||
await query(`
|
||
INSERT INTO orders (
|
||
id, order_sn, user_id, open_id,
|
||
product_type, product_id, amount, description,
|
||
status, transaction_id, pay_time, created_at, updated_at
|
||
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, 'paid', ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
|
||
`, [
|
||
orderSn, orderSn, buyerUserId || openId, openId,
|
||
productType || 'unknown', productId || '', totalAmount,
|
||
'支付回调补记订单', transactionId
|
||
])
|
||
console.log('[PayNotify] ✅ 订单补记成功(无 referrer_id/referral_code):', orderSn)
|
||
orderExists = true
|
||
} catch (e3) {
|
||
console.error('[PayNotify] ❌ 补记订单失败:', e3)
|
||
}
|
||
} else {
|
||
console.error('[PayNotify] ❌ 补记订单失败:', e2)
|
||
}
|
||
}
|
||
} else {
|
||
console.error('[PayNotify] ❌ 补记订单失败:', insertErr)
|
||
}
|
||
}
|
||
} else {
|
||
const order = orderRows[0]
|
||
orderExists = true
|
||
|
||
if (order.status === 'paid') {
|
||
console.log('[PayNotify] ℹ️ 订单已支付，跳过更新:', orderSn)
|
||
} else {
|
||
// 更新订单状态
|
||
await query(`
|
||
UPDATE orders
|
||
SET status = 'paid',
|
||
transaction_id = ?,
|
||
pay_time = CURRENT_TIMESTAMP,
|
||
updated_at = CURRENT_TIMESTAMP
|
||
WHERE order_sn = ?
|
||
`, [transactionId, orderSn])
|
||
|
||
console.log('[PayNotify] ✅ 订单状态已更新为已支付:', orderSn)
|
||
}
|
||
}
|
||
} catch (e) {
|
||
console.error('[PayNotify] ❌ 处理订单失败:', e)
|
||
}
|
||
|
||
// 2. 更新用户购买记录（buyerUserId 已在上面以 openId 为准解析）（✅ 检查是否已有其他相同产品的已支付订单）
|
||
if (buyerUserId && productType) {
|
||
try {
|
||
if (productType === 'fullbook') {
|
||
// 全书购买：无论如何都解锁
|
||
await query('UPDATE users SET has_full_book = TRUE WHERE id = ?', [buyerUserId])
|
||
console.log('[PayNotify] ✅ 用户已购全书:', buyerUserId)
|
||
|
||
} else if (productType === 'section' && productId) {
|
||
// 单章购买：检查是否已有该章节的其他已支付订单
|
||
const existingPaidOrders = await query(`
|
||
SELECT COUNT(*) as count
|
||
FROM orders
|
||
WHERE user_id = ?
|
||
AND product_type = 'section'
|
||
AND product_id = ?
|
||
AND status = 'paid'
|
||
AND order_sn != ?
|
||
`, [buyerUserId, productId, orderSn]) as any[]
|
||
|
||
const hasOtherPaidOrder = existingPaidOrders[0].count > 0
|
||
|
||
if (hasOtherPaidOrder) {
|
||
console.log('[PayNotify] ℹ️ 用户已有该章节的其他已支付订单，无需重复解锁:', {
|
||
userId: buyerUserId,
|
||
productId
|
||
})
|
||
} else {
|
||
// 第一次支付该章节，解锁权限
|
||
await query(`
|
||
UPDATE users
|
||
SET purchased_sections = JSON_ARRAY_APPEND(
|
||
COALESCE(purchased_sections, '[]'),
|
||
'$', ?
|
||
)
|
||
WHERE id = ? AND NOT JSON_CONTAINS(COALESCE(purchased_sections, '[]'), ?)
|
||
`, [productId, buyerUserId, JSON.stringify(productId)])
|
||
console.log('[PayNotify] ✅ 用户首次购买章节，已解锁:', buyerUserId, productId)
|
||
}
|
||
}
|
||
} catch (e) {
|
||
console.error('[PayNotify] ❌ 更新用户购买记录失败:', e)
|
||
}
|
||
|
||
// 3. 清理相同产品的无效订单（未支付的订单）
|
||
if (productType && (productType === 'fullbook' || productId)) {
|
||
try {
|
||
const deleteResult = await query(`
|
||
DELETE FROM orders
|
||
WHERE user_id = ?
|
||
AND product_type = ?
|
||
AND product_id = ?
|
||
AND status = 'created'
|
||
AND order_sn != ?
|
||
`, [
|
||
buyerUserId,
|
||
productType,
|
||
productId || 'fullbook',
|
||
orderSn // 保留当前已支付的订单
|
||
])
|
||
|
||
const deletedCount = (deleteResult as any).affectedRows || 0
|
||
if (deletedCount > 0) {
|
||
console.log('[PayNotify] ✅ 已清理无效订单:', {
|
||
userId: buyerUserId,
|
||
productType,
|
||
productId: productId || 'fullbook',
|
||
deletedCount
|
||
})
|
||
}
|
||
} catch (deleteErr) {
|
||
console.error('[PayNotify] ❌ 清理无效订单失败:', deleteErr)
|
||
// 清理失败不影响主流程
|
||
}
|
||
}
|
||
|
||
// 4. 处理分销佣金（90%给推广者）
|
||
await processReferralCommission(buyerUserId, totalAmount, orderSn)
|
||
}
|
||
|
||
console.log('[PayNotify] 订单处理完成:', {
|
||
orderSn,
|
||
productType,
|
||
productId,
|
||
userId: buyerUserId,
|
||
})
|
||
|
||
// 返回成功响应给微信
|
||
return new Response(SUCCESS_RESPONSE, {
|
||
headers: { 'Content-Type': 'application/xml' }
|
||
})
|
||
|
||
} catch (error) {
|
||
console.error('[PayNotify] 处理回调失败:', error)
|
||
return new Response(FAIL_RESPONSE, {
|
||
headers: { 'Content-Type': 'application/xml' }
|
||
})
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 处理分销佣金
|
||
* 规则：约90%给分发者（一级分销）
|
||
*/
|
||
async function processReferralCommission(buyerUserId: string, amount: number, orderSn: string) {
|
||
try {
|
||
// 获取分成配置
|
||
let distributorShare = DEFAULT_DISTRIBUTOR_SHARE
|
||
try {
|
||
const config = await getConfig('referral_config')
|
||
if (config?.distributorShare) {
|
||
distributorShare = config.distributorShare / 100
|
||
}
|
||
} catch (e) { /* 使用默认配置 */ }
|
||
|
||
// 查找当前有效的推广绑定关系（新逻辑：购买时的绑定关系）
|
||
const bindings = await query(`
|
||
SELECT rb.id, rb.referrer_id, rb.referee_id, rb.expiry_date, rb.status,
|
||
rb.purchase_count, rb.total_commission
|
||
FROM referral_bindings rb
|
||
WHERE rb.referee_id = ?
|
||
AND rb.status = 'active'
|
||
ORDER BY rb.binding_date DESC
|
||
LIMIT 1
|
||
`, [buyerUserId]) as any[]
|
||
|
||
if (bindings.length === 0) {
|
||
console.log('[PayNotify] 用户无有效推广绑定，跳过分佣:', buyerUserId)
|
||
return
|
||
}
|
||
|
||
const binding = bindings[0]
|
||
const referrerId = binding.referrer_id
|
||
|
||
// 检查是否已过期（过期也不分佣）
|
||
const expiryDate = new Date(binding.expiry_date)
|
||
const now = new Date()
|
||
if (expiryDate < now) {
|
||
console.log('[PayNotify] 绑定已过期，跳过分佣:', {
|
||
buyerUserId,
|
||
referrerId,
|
||
expiryDate: expiryDate.toISOString()
|
||
})
|
||
return
|
||
}
|
||
|
||
// 计算佣金
|
||
const commission = Math.round(amount * distributorShare * 100) / 100
|
||
const newPurchaseCount = (binding.purchase_count || 0) + 1
|
||
const newTotalCommission = (binding.total_commission || 0) + commission
|
||
|
||
console.log('[PayNotify] 处理分佣:', {
|
||
referrerId,
|
||
buyerUserId,
|
||
amount,
|
||
commission,
|
||
shareRate: `${distributorShare * 100}%`,
|
||
purchaseCount: `${binding.purchase_count || 0} -> ${newPurchaseCount}`,
|
||
totalCommission: `${binding.total_commission || 0} -> ${newTotalCommission.toFixed(2)}`
|
||
})
|
||
|
||
// 更新推广者的待结算收益
|
||
await query(`
|
||
UPDATE users
|
||
SET pending_earnings = pending_earnings + ?
|
||
WHERE id = ?
|
||
`, [commission, referrerId])
|
||
|
||
// 更新绑定记录：累加购买次数和佣金，记录最后购买时间（保持 active 状态）
|
||
await query(`
|
||
UPDATE referral_bindings
|
||
SET last_purchase_date = CURRENT_TIMESTAMP,
|
||
purchase_count = purchase_count + 1,
|
||
total_commission = total_commission + ?
|
||
WHERE id = ?
|
||
`, [commission, binding.id])
|
||
|
||
console.log('[PayNotify] 分佣完成: 推广者', referrerId, '获得', commission, '元（第', newPurchaseCount, '次购买，累计', newTotalCommission.toFixed(2), '元）')
|
||
|
||
} catch (error) {
|
||
console.error('[PayNotify] 处理分佣失败:', error)
|
||
// 分佣失败不影响主流程
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 清理无效订单
|
||
* 当一个订单支付成功后，删除该用户相同产品的其他未支付订单
|
||
*/
|
||
async function cleanupUnpaidOrders(
|
||
userId: string,
|
||
productType: string | undefined,
|
||
productId: string | undefined,
|
||
paidOrderSn: string
|
||
) {
|
||
try {
|
||
if (!userId || !productType) {
|
||
return
|
||
}
|
||
|
||
// 查询相同产品的其他未支付订单
|
||
const unpaidOrders = await query(`
|
||
SELECT id, order_sn, status, created_at
|
||
FROM orders
|
||
WHERE user_id = ?
|
||
AND product_type = ?
|
||
AND product_id = ?
|
||
AND status IN ('created', 'pending')
|
||
AND order_sn != ?
|
||
`, [userId, productType, productId || 'fullbook', paidOrderSn]) as any[]
|
||
|
||
if (unpaidOrders.length === 0) {
|
||
console.log('[PayNotify] ℹ️ 没有需要清理的无效订单')
|
||
return
|
||
}
|
||
|
||
// 删除这些无效订单
|
||
await query(`
|
||
DELETE FROM orders
|
||
WHERE user_id = ?
|
||
AND product_type = ?
|
||
AND product_id = ?
|
||
AND status IN ('created', 'pending')
|
||
AND order_sn != ?
|
||
`, [userId, productType, productId || 'fullbook', paidOrderSn])
|
||
|
||
console.log('[PayNotify] ✅ 已清理无效订单:', {
|
||
userId,
|
||
productType,
|
||
productId,
|
||
deletedCount: unpaidOrders.length,
|
||
deletedOrders: unpaidOrders.map(o => o.order_sn)
|
||
})
|
||
|
||
} catch (error) {
|
||
console.error('[PayNotify] ❌ 清理无效订单失败:', error)
|
||
// 清理失败不影响主流程
|
||
}
|
||
}
|