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import crypto from 'crypto';
// 懒加载支付 SDK（避免 Node.js ESM 兼容性问题）
let AlipaySdk: any = null;
let WeChatPay: any = null;
let sdkInitialized = false;
// 初始化支付 SDK
async function initPaymentSdks() {
if (sdkInitialized) return;
sdkInitialized = true;
try {
const sdk = await import('alipay-sdk');
AlipaySdk = sdk.AlipaySdk;
console.log('[Payment] 支付宝 SDK 加载成功');
} catch (e) {
console.warn('[Payment] 支付宝 SDK 加载失败:', e);
}
try {
// 直接 require，因为 wechatpay-node-v3 是 CommonJS 模块
WeChatPay = require('wechatpay-node-v3');
console.log('[Payment] 微信支付 SDK 加载成功');
} catch (e) {
console.warn('[Payment] 微信支付 SDK 加载失败:', e);
}
}
// 生成订单号
export function generateOrderNo(): string {
const now = new Date();
const dateStr = now.toISOString().slice(0, 10).replace(/-/g, '');
const random = Math.random().toString(36).substring(2, 8).toUpperCase();
return `PAY${dateStr}${random}`;
}
// 初始化支付宝 SDK
let alipaySdk: any | null = null;
function getAlipaySdk(): any | null {
if (!AlipaySdk) {
console.warn('[Alipay] 支付宝 SDK 未加载');
return null;
}
const appId = process.env.ALIPAY_APP_ID || '';
// dotenv 不解析多行 PEM，手动加 PEM 头尾
const rawPrivateKey = process.env.ALIPAY_PRIVATE_KEY || '';
const privateKey = rawPrivateKey.includes('BEGIN') ? rawPrivateKey
: `-----BEGIN RSA PRIVATE KEY-----\n${rawPrivateKey}\n-----END RSA PRIVATE KEY-----`;
const rawPublicKey = process.env.ALIPAY_PUBLIC_KEY || '';
const alipayPublicKey = rawPublicKey.includes('BEGIN') ? rawPublicKey
: `-----BEGIN PUBLIC KEY-----\n${rawPublicKey}\n-----END PUBLIC KEY-----`;
if (!appId || !privateKey || !alipayPublicKey) {
console.warn('[Alipay] 未配置支付宝参数');
return null;
}
if (!alipaySdk) {
alipaySdk = new AlipaySdk({
appId,
privateKey,
alipayPublicKey,
gateway: 'https://openapi-sandbox.dl.alipaydev.com/gateway.do',
});
}
return alipaySdk;
}
// 初始化微信支付 SDK
let wechatPay: any | null = null;
function getWechatPay(): any | null {
if (!WeChatPay) {
console.warn('[WeChatPay] 微信支付 SDK 未加载');
return null;
}
const appId = process.env.WECHAT_APP_ID;
const mchId = process.env.WECHAT_MCH_ID;
const serialNo = process.env.WECHAT_SERIAL_NO;
const apiv3Key = process.env.WECHAT_APIV3_KEY;
// 读取私钥和公钥文件（dotenv 无法正确解析多行 PEM 密钥）
const fs = require('fs');
const path = require('path');
const certDir = path.join(__dirname, '../../../cert/wx');
const privateKeyPath = path.join(certDir, 'apiclient_key.pem');
const publicKeyPath = path.join(certDir, 'pub_key.pem');
let privateKey = '';
let publicKey = '';
try {
privateKey = fs.readFileSync(privateKeyPath, 'utf8');
publicKey = fs.readFileSync(publicKeyPath, 'utf8');
} catch (e) {
console.warn('[WeChatPay] 未找到证书文件:', e.message);
}
if (!appId || !mchId || !privateKey || !serialNo || !apiv3Key) {
console.warn('[WeChatPay] 未配置微信支付参数');
return null;
}
if (!wechatPay) {
// 从私钥导出公钥（dotenv无法正确解析多行PEM，且提供的pub_key.pem与私钥不匹配）
const privKeyObj = crypto.createPrivateKey(privateKey);
const pubKeyFromPriv = crypto.createPublicKey(privKeyObj);
const publicKeyDer = pubKeyFromPriv.export({ type: 'spki', format: 'der' });
wechatPay = new WeChatPay({
appid: appId,
mchid: mchId,
serial_no: serialNo,
publicKey: publicKeyDer,
privateKey: Buffer.from(privateKey),
key: apiv3Key,
});
}
return wechatPay;
}
// 创建支付订单
export async function createPaymentOrder(
userId: number,
planId: number,
paymentMethod: 'alipay' | 'wechat' | 'mock',
period: 'monthly' | 'yearly' = 'monthly',
returnUrl?: string
): Promise<{
orderNo: string;
amount: number;
planName: string;
paymentUrl?: string;
qrcode?: string;
}> {
// 确保 SDK 已加载
await initPaymentSdks();
// 获取套餐信息
const plan = await prisma.subscriptionPlan.findUnique({
where: { id: planId }
});
if (!plan) {
throw new Error('套餐不存在');
}
// 生成订单号
const orderNo = generateOrderNo();
// 根据周期选择价格
const amount = period === 'yearly' ? Number(plan.priceYearly) : Number(plan.priceMonthly);
// 创建订单记录
await prisma.order.create({
data: {
userId,
orderNo,
planId,
productType: period,
amount,
status: 'pending',
paymentMethod,
}
});
// 生成支付信息
let paymentUrl: string | undefined;
let qrcode: string | undefined;
try {
if (paymentMethod === 'alipay') {
const alipayResult = await generateAlipayPayment(orderNo, amount, plan.name, returnUrl);
paymentUrl = alipayResult.paymentUrl;
qrcode = alipayResult.qrcode;
} else if (paymentMethod === 'wechat') {
const wechatResult = await generateWechatPayment(orderNo, amount, plan.name);
qrcode = wechatResult.qrcode;
paymentUrl = wechatResult.h5Url;
}
} catch (error) {
console.error('[Payment] 支付链接生成失败:', error);
throw error;
}
return {
orderNo,
amount,
planName: plan.name,
paymentUrl,
qrcode
};
}
// 生成支付宝支付链接
async function generateAlipayPayment(
orderNo: string,
amount: number,
subject: string,
returnUrl?: string
): Promise<{ paymentUrl?: string; qrcode?: string }> {
const sdk = getAlipaySdk();
const isProduction = process.env.NODE_ENV === 'production';
// 默认回调地址
const defaultReturnUrl = process.env.ALIPAY_RETURN_URL || `${process.env.BASE_URL || 'https://your-domain.com'}/#/pages/payment-result/index`;
const finalReturnUrl = returnUrl || defaultReturnUrl;
if (!sdk) {
console.warn('[Alipay] 未配置支付宝，返回模拟支付链接');
return {
paymentUrl: `https://openapi-sandbox.dl.alipaydev.com/gateway.do?out_trade_no=${orderNo}&total_amount=${amount}&subject=${encodeURIComponent(subject)}`
};
}
// 使用沙箱环境
const useSandbox = !isProduction;
try {
// 使用电脑网站支付 API
const bizContent = {
out_trade_no: orderNo,
total_amount: String(amount),
subject: subject,
product_code: 'FAST_INSTANT_TRADE_PAY',
quit_url: finalReturnUrl,
};
// 使用 wap.pay 返回表单，提取 action URL 用于跳转
const htmlForm = sdk.pageExec('alipay.trade.wap.pay', {
bizContent: {
out_trade_no: orderNo,
total_amount: String(amount),
subject: subject,
quit_url: finalReturnUrl,
},
useSandbox: true,
});
// 从 HTML 表单中提取 action URL
const actionMatch = String(htmlForm).match(/action="([^"]+)"/);
const paymentUrl = actionMatch ? actionMatch[1] : '';
return {
paymentUrl,
};
} catch (error) {
console.error('[Alipay] 支付链接生成失败:', error);
throw new Error('支付宝支付链接生成失败');
}
}
// 生成微信支付二维码链接
async function generateWechatPayment(
orderNo: string,
amount: number,
subject: string
): Promise<{ qrcode?: string; h5Url?: string }> {
const wechat = getWechatPay();
if (!wechat) {
console.warn('[WeChatPay] 未配置微信支付，返回模拟支付链接');
return {
qrcode: `https://api.mch.weixin.qq.com/qrcode/${orderNo}`,
h5Url: `weixin://wxpay/bizpayurl?pr=${encodeURIComponent(orderNo)}`
};
}
try {
console.log('[WeChatPay] 开始创建 NATIVE 支付订单:', { orderNo, amount, subject });
// 使用 NATIVE 支付（扫码支付）
const result: any = await wechat.transactions_native({
description: subject,
out_trade_no: orderNo,
amount: {
total: Math.round(amount * 100), // 转换为分
currency: 'CNY',
},
notify_url: process.env.WECHAT_NOTIFY_URL || `${process.env.BASE_URL || 'https://your-domain.com'}/api/payment/wechat/notify`,
});
console.log('[WeChatPay] 支付接口返回, result:', JSON.stringify(result));
// 检查返回状态（SDK 不会reject错误响应，而是返回包含error的对象）
if (result.status !== 200 && result.status !== '200') {
const errorMsg = result.error || JSON.stringify(result);
console.error('[WeChatPay] 支付失败:', errorMsg);
// 微信支付签名错误通常是商户证书问题，返回更友好的错误信息
throw new Error(`微信支付暂不可用，请稍后重试或使用其他支付方式`);
}
console.log('[WeChatPay] 支付二维码生成成功, code_url:', result.code_url);
// 返回二维码链接（前端自行生成二维码图片）
return {
qrcode: result.code_url,
};
} catch (error: any) {
console.error('[WeChatPay] 支付二维码生成失败:', error.message || error);
throw new Error('微信支付暂不可用，请稍后重试或使用其他支付方式');
}
}
// 生成支付宝扫码支付二维码
export async function generateAlipayQrcode(
orderNo: string,
amount: number,
subject: string
): Promise<string> {
const sdk = getAlipaySdk();
const isProduction = process.env.NODE_ENV === 'production';
if (!sdk) {
console.warn('[Alipay] 未配置支付宝，返回模拟二维码链接');
return `https://qr.alipay.com/${orderNo}`;
}
const useSandbox = !isProduction;
try {
// 使用当面付预下单 API
const bizContent = {
outTradeNo: orderNo,
totalAmount: amount,
subject: subject,
};
const result = await sdk.exec(
'alipay.trade.precreate',
{},
{ bizContent, useSandbox }
);
// 解析返回的二维码链接
const response = result as any;
if (response.qr_code) {
return response.qr_code;
}
return result as string;
} catch (error) {
console.error('[Alipay] 扫码支付二维码生成失败:', error);
throw new Error('支付宝扫码支付生成失败');
}
}
// 验证支付宝回调签名
export function verifyAlipaySign(params: Record<string, string>): boolean {
const sdk = getAlipaySdk();
if (!sdk) {
console.warn('[Alipay] 未配置支付宝，跳过签名验证');
return true;
}
try {
const signVerified = sdk.checkNotifySign(params);
console.log('[Alipay] 签名验证结果:', signVerified);
return signVerified;
} catch (error) {
console.error('[Alipay] 签名验证失败:', error);
return false;
}
}
// 处理支付回调
export async function handlePaymentCallback(
orderNo: string,
paymentId: string,
status: 'success' | 'failed'
) {
const order = await prisma.order.findFirst({
where: { orderNo }
});
if (!order) {
throw new Error('订单不存在');
}
if (order.status === 'paid') {
// 订单已经支付成功，直接返回
return { success: true, message: '订单已支付' };
}
if (status === 'failed') {
await prisma.order.update({
where: { id: order.id },
data: {
status: 'failed',
paymentId,
updatedAt: new Date()
}
});
return { success: false, message: '支付失败' };
}
// 支付成功
await prisma.order.update({
where: { id: order.id },
data: {
status: 'paid',
paymentId,
paidAt: new Date(),
updatedAt: new Date()
}
});
// 激活订阅
if (order.planId) {
await activateSubscription(order.userId, order.planId, order.productType);
}
return { success: true, message: '支付成功' };
}
// 激活订阅
export async function activateSubscription(userId: number, planId: number, productType: string = 'monthly') {
const plan = await prisma.subscriptionPlan.findUnique({
where: { id: planId }
});
if (!plan) {
throw new Error('套餐不存在');
}
const now = new Date();
// 根据订单的产品类型确定有效天数
const days = productType === 'yearly' ? 365 : 30;
const endDate = new Date(now.getTime() + days * 24 * 60 * 60 * 1000);
const existingSubscription = await prisma.subscription.findFirst({
where: {
userId,
status: 'active',
endDate: { gt: now }
}
});
let subscriptionEndDate = endDate;
if (existingSubscription) {
subscriptionEndDate = new Date(existingSubscription.endDate.getTime() + days * 24 * 60 * 60 * 1000);
await prisma.subscription.update({
where: { id: existingSubscription.id },
data: {
planId,
endDate: subscriptionEndDate,
updatedAt: now
}
});
} else {
await prisma.subscription.create({
data: {
userId,
planId,
startDate: now,
endDate: subscriptionEndDate,
status: 'active',
autoRenew: false
}
});
}
// 更新用户会员等级
await prisma.user.update({
where: { id: userId },
data: {
memberLevel: plan.level,
memberExpireAt: subscriptionEndDate
}
});
// 更新Token余额
const monthlyTokens = plan.monthlyTokens;
const currentBalance = await prisma.tokenBalance.findUnique({
where: { userId }
});
if (monthlyTokens !== -1) {
if (currentBalance) {
await prisma.tokenBalance.update({
where: { userId },
data: {
totalTokens: monthlyTokens,
usedTokens: 0,
resetDate: new Date(now.getFullYear(), now.getMonth() + 1, 1)
}
});
} else {
await prisma.tokenBalance.create({
data: {
userId,
totalTokens: monthlyTokens,
usedTokens: 0,
resetDate: new Date(now.getFullYear(), now.getMonth() + 1, 1)
}
});
}
} else {
if (currentBalance) {
await prisma.tokenBalance.update({
where: { userId },
data: {
totalTokens: -1,
usedTokens: 0,
resetDate: null
}
});
} else {
await prisma.tokenBalance.create({
data: {
userId,
totalTokens: -1,
usedTokens: 0
}
});
}
}
}
// 模拟支付成功
export async function mockPaymentSuccess(orderNo: string, userId: number) {
return handlePaymentCallback(orderNo, 'MOCK_' + Date.now(), 'success');
}
// 获取订单列表
export async function getOrderList(userId: number, page: number = 1, pageSize: number = 20) {
const where = { userId };
const total = await prisma.order.count({ where });
const list = await prisma.order.findMany({
where,
include: { plan: true },
orderBy: { createdAt: 'desc' },
skip: (page - 1) * pageSize,
take: pageSize
});
return {
list: list.map(order => ({
...order,
amount: Number(order.amount),
planName: order.plan?.name || ''
})),
total,
page,
pageSize,
totalPages: Math.ceil(total / pageSize)
};
}
// 获取订单详情
export async function getOrderDetail(orderNo: string, userId: number) {
const order = await prisma.order.findFirst({
where: { orderNo, userId },
include: { plan: true }
});
if (!order) {
throw new Error('订单不存在');
}
return {
...order,
amount: Number(order.amount),
planName: order.plan?.name || ''
};
}
// 查询微信支付订单状态
export async function queryWechatOrder(outTradeNo: string) {
const wechat = getWechatPay();
if (!wechat) {
return null;
}
try {
const result = await wechat.query({ out_trade_no: outTradeNo });
return result;
} catch (error) {
console.error('[WeChatPay] 查询订单失败:', error);
return null;
}
}
// 初始化 SDK
initPaymentSdks(); |