228 lines
8.2 KiB
TypeScript
228 lines
8.2 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { getZPayConfig } from "@/lib/sdk";
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import { SITE_URL } from "@/app/lib/env";
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const ZPAY_REQUIRED = [
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"pid",
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"type",
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"out_trade_no",
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"notify_url",
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"return_url",
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"name",
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"money",
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"sign",
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"sign_type",
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];
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function escapeAttr(s: string): string {
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return String(s)
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.replace(/&/g, "&")
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.replace(/"/g, """)
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.replace(/</g, "<")
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.replace(/>/g, ">");
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}
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function buildPayHtml(payUrl: string, params: Record<string, unknown>): string {
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const flat: Record<string, string> = {};
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for (const [k, v] of Object.entries(params)) {
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if (v == null) continue;
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const s = String(v).trim();
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if (s === "") continue;
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flat[k] = s;
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}
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const inputs = Object.entries(flat)
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.map(([k, v]) => `<input type="hidden" name="${escapeAttr(k)}" value="${escapeAttr(v)}" />`)
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.join("\n");
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return `<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<title>跳转支付...</title>
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<style>body{font-family:system-ui;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;background:#f0f4f8;}p{color:#64748b;}</style>
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</head>
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<body>
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<p>正在跳转到支付页面...</p>
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<form id="zpayForm" action="${escapeAttr(payUrl)}" method="POST" enctype="application/x-www-form-urlencoded">
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${inputs}
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</form>
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<script>document.getElementById("zpayForm").submit();</script>
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</body>
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</html>`;
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}
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function detectDevice(request: NextRequest): "pc" | "h5" | "wechat" {
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const ua = request.headers.get("user-agent") || "";
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if (/MicroMessenger/i.test(ua)) return "wechat";
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if (/Mobile|Android|iPhone|iPad/i.test(ua)) return "h5";
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return "pc";
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}
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export async function POST(request: NextRequest) {
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try {
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let body: Record<string, string | number>;
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const contentType = request.headers.get("content-type") || "";
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if (contentType.includes("application/json")) {
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body = await request.json();
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} else {
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const form = await request.formData();
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body = Object.fromEntries(form.entries()) as Record<string, string>;
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}
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const payConfig = getZPayConfig();
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const user_id = String(body?.user_id || `user_${Date.now()}`).trim();
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const return_url = String(body?.return_url || "").trim();
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const total_fee = Number(body?.total_fee) || payConfig.defaultAmount;
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const type = String(body?.type || payConfig.defaultType);
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const channel = String(body?.channel || "alipay");
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const device = (body?.device as string) || detectDevice(request);
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const origin =
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request.headers.get("x-forwarded-host")
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? `${request.headers.get("x-forwarded-proto") || "https"}://${request.headers.get("x-forwarded-host")}`
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: request.headers.get("origin") || SITE_URL;
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const finalReturnUrl = return_url || `${origin}/pay/paid`;
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const payload = {
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user_id,
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total_fee,
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type,
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channel: device === "wechat" ? "wxpay" : channel,
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return_url: finalReturnUrl,
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device,
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};
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const controller = new AbortController();
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const timeout = setTimeout(() => controller.abort(), 15000);
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const redirectRes = await fetch(`${payConfig.apiUrl}/payh5/redirect`, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({
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...payload,
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client_ip: request.headers.get("x-forwarded-for")?.split(",")[0]?.trim() ||
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request.headers.get("x-real-ip") ||
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"",
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}),
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redirect: "manual",
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signal: controller.signal,
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}).finally(() => clearTimeout(timeout));
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const orderId = redirectRes.headers.get("x-pay-order-id")?.trim();
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if (redirectRes.status >= 301 && redirectRes.status <= 308) {
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const location = redirectRes.headers.get("location");
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if (location) {
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const res = NextResponse.redirect(location);
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if (orderId) {
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res.cookies.set("pay_order", `${orderId}|${Date.now()}`, { path: "/", maxAge: 900 });
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}
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return res;
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}
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}
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const resData = await redirectRes.json().catch(() => ({}));
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if (redirectRes.status === 200 && resData?.use_form) {
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const { createPayOrder } = await import("@/lib/sdk");
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const { params } = await createPayOrder({
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user_id,
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return_url: finalReturnUrl,
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total_fee,
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type,
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channel: "wxpay",
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});
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const html = buildPayHtml(payConfig.zpaySubmitUrl, params);
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const res = new NextResponse(html, {
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status: 200,
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headers: { "Content-Type": "text/html; charset=utf-8" },
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});
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if (orderId) {
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res.cookies.set("pay_order", `${orderId}|${Date.now()}`, { path: "/", maxAge: 900 });
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}
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return res;
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}
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if (redirectRes.status === 200 && resData?.qrcode_mode && resData?.img) {
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const returnUrl = String(resData.return_url || finalReturnUrl).replace(/[&<>"']/g, (c) =>
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({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c] || c
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);
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const imgSrc = String(resData.img).replace(/[&<>"']/g, (c) =>
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({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c] || c
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);
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const ordId = String(resData.order_id || "").replace(/[&<>"']/g, (c) =>
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({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c] || c
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);
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const ch = String(resData.channel || "alipay").toLowerCase();
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const isWx = ch === "wxpay" || ch === "wx" || ch === "wechat";
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const title = isWx ? "微信扫码支付" : "支付宝扫码支付";
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const hint = isWx ? "请使用微信扫描下方二维码完成支付" : "请使用支付宝扫描下方二维码完成支付";
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const esc = (s: string) =>
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s.replace(/[&<>"']/g, (c) => ({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c] || c);
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const html = `<!DOCTYPE html>
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<html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
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<title>${esc(title)}</title>
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<style>body{font-family:system-ui;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;margin:0;background:#f0f4f8;}h2{color:#333;margin-bottom:8px;}p{color:#64748b;font-size:14px;}img{width:220px;height:220px;margin:20px 0;border:1px solid #e2e8f0;border-radius:8px;background:#fff;}a{color:#0ea5e9;margin-top:16px;}.tip{font-size:12px;color:#94a3b8;margin-top:8px;}</style></head>
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<body>
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<h2>${esc(title)}</h2>
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<p>${esc(hint)}</p>
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<img src="${imgSrc}" alt="支付二维码" />
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<p class="tip" id="tip">支付成功后将自动跳转...</p>
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<script>
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(function(){
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var orderId="${ordId}";
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var returnUrl="${returnUrl}";
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if(!orderId){return;}
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var tip=document.getElementById("tip");
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var t=0;
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var maxT=300;
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function check(){
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t++;
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if(t>maxT){tip.textContent="轮询超时";return;}
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fetch("/api/pay/status?order_id="+encodeURIComponent(orderId))
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.then(function(r){return r.json();})
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.then(function(d){
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if(d.ok&&d.paid){window.location.href=returnUrl;return;}
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setTimeout(check,2000);
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})
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.catch(function(){setTimeout(check,2000);});
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}
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setTimeout(check,2000);
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})();
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</script>
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</body></html>`;
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return new NextResponse(html, {
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status: 200,
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headers: { "Content-Type": "text/html; charset=utf-8" },
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});
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}
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if (redirectRes.status === 400 || redirectRes.status === 500) {
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return NextResponse.json(
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{ ok: false, error: resData?.detail || resData?.msg || "支付跳转失败" },
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{ status: redirectRes.status }
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);
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}
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return NextResponse.json(
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{ ok: false, error: "支付服务暂不可用，请稍后重试" },
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{ status: 500 }
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);
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} catch (e) {
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const err = e instanceof Error ? e : new Error(String(e));
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const msg = err.message || "";
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const hint =
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msg.includes("fetch") || msg.includes("ECONNREFUSED")
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? "请确认 payjsapi 已启动：cd C:\\project\\payjsapi && python run.py"
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: (err as Error).name === "AbortError"
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? "请求超时，请检查 payjsapi 是否正常运行"
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: msg;
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console.error("Pay API error:", err);
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return NextResponse.json(
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{ ok: false, error: `支付请求失败: ${hint}` },
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{ status: 500 }
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);
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}
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}
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