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Payuni Webhook

skill-paid-tw-skills-payuni-webhook · by paid-tw

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Install

$ agentstack add skill-paid-tw-skills-payuni-webhook

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • Prompt-injection patterns
  • Secret / credential exfiltration
  • Dangerous shell & filesystem operations
  • Untrusted network calls
  • Known-malicious package signatures

What it can access

  • Network access No
  • Filesystem access No
  • Shell / process execution No
  • Environment & secrets Used
  • Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/skill-paid-tw-skills-payuni-webhook)

Reliability & compatibility

Security review passed
0 installs to date
no reviews yet
5mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
Are you the author of Payuni Webhook? Claim this listing to set pricing, connect Stripe payouts, and keep 70% of every sale.
Sign up to claim

About

統一金流 Webhook 處理任務

你的任務是在用戶的專案中實作統一金流 Webhook 接收與處理功能。

串接 Checklist

  • [ ] 框架確認 - 確認使用的框架
  • [ ] 端點建立 - 建立 Webhook 接收端點
  • [ ] 簽名驗證 - 實作 CheckCode 驗證
  • [ ] 防重放 - 實作重複請求檢測
  • [ ] 狀態更新 - 更新訂單狀態
  • [ ] 測試驗證 - 驗證 Webhook 處理流程

Step 1: 確認專案環境

用戶輸入: $ARGUMENTS

詢問用戶:

  1. 框架類型
  • Next.js (App Router / Pages Router)
  • Express / Fastify
  • NestJS
  • 其他
  1. 資料庫:用什麼來儲存訂單?
  • PostgreSQL / MySQL
  • MongoDB
  • Prisma / Drizzle
  • Supabase
  • 其他

Step 2: 建立 Webhook 端點

Next.js App Router

// app/api/webhooks/payuni/route.ts
import { NextRequest, NextResponse } from 'next/server';
import crypto from 'crypto';

const config = {
  hashKey: process.env.PAYUNI_HASH_KEY!,
  hashIV: process.env.PAYUNI_HASH_IV!,
};

// 簽名驗證(使用 constant-time 比較防止 timing attack)
function verifyCheckCode(params: Record): boolean {
  const { CheckCode, ...otherParams } = params;
  if (!CheckCode) return false;

  const sortedKeys = Object.keys(otherParams).sort();
  const paramStr = sortedKeys.map(k => `${k}=${otherParams[k]}`).join('&');
  const signStr = `HashKey=${config.hashKey}&${paramStr}&HashIV=${config.hashIV}`;
  
  const calculated = crypto
    .createHash('sha256')
    .update(signStr)
    .digest('hex')
    .toUpperCase();

  try {
    return crypto.timingSafeEqual(
      Buffer.from(calculated),
      Buffer.from(CheckCode)
    );
  } catch {
    return false;
  }
}

export async function POST(request: NextRequest) {
  try {
    // 解析請求
    const contentType = request.headers.get('content-type');
    let params: Record;
    
    if (contentType?.includes('application/json')) {
      params = await request.json();
    } else {
      const formData = await request.formData();
      params = Object.fromEntries(formData.entries()) as Record;
    }

    // 驗證簽名
    if (!verifyCheckCode(params)) {
      console.error('[Webhook] Invalid signature');
      return NextResponse.json({ error: 'Invalid signature' }, { status: 401 });
    }

    // 取得訂單資訊
    const { Status, MerchantOrderNo, TradeNo, TradeAmt } = params;

    // TODO: 檢查是否已處理過此 TradeNo(防重放攻擊)
    // const exists = await db.webhookLog.findUnique({ where: { tradeNo: TradeNo } });
    // if (exists) return NextResponse.json({ success: true, message: 'Already processed' });

    if (Status === 'SUCCESS') {
      // TODO: 更新訂單狀態為已付款
      // await db.order.update({
      //   where: { id: MerchantOrderNo },
      //   data: { status: 'paid', paymentDetails: { tradeNo: TradeNo, amount: TradeAmt } }
      // });
      console.log('[Webhook] Payment success:', MerchantOrderNo);
    } else {
      // TODO: 更新訂單狀態為失敗
      console.log('[Webhook] Payment failed:', MerchantOrderNo);
    }

    // TODO: 記錄 webhook 請求(防重放)
    // await db.webhookLog.create({ data: { tradeNo: TradeNo, processedAt: new Date() } });

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error('[Webhook] Error:', error);
    return NextResponse.json({ error: 'Internal error' }, { status: 500 });
  }
}

// 健康檢查端點
export async function GET() {
  return NextResponse.json({
    message: 'PAYUNi Webhook endpoint',
    timestamp: new Date().toISOString(),
  });
}

Express

import express from 'express';
import crypto from 'crypto';

const router = express.Router();

router.post('/webhooks/payuni', async (req, res) => {
  try {
    const params = req.body;

    // 驗證簽名
    if (!verifyCheckCode(params)) {
      return res.status(401).json({ error: 'Invalid signature' });
    }

    const { Status, MerchantOrderNo, TradeNo } = params;

    if (Status === 'SUCCESS') {
      // 更新訂單狀態
      console.log('Payment success:', MerchantOrderNo);
    }

    res.json({ success: true });
  } catch (error) {
    console.error('Webhook error:', error);
    res.status(500).json({ error: 'Internal error' });
  }
});

export default router;

Step 3: 實作防重放攻擊

建立 webhook 請求記錄表:

CREATE TABLE webhook_requests (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  provider VARCHAR(50) NOT NULL DEFAULT 'payuni',
  trade_no VARCHAR(100) UNIQUE,
  merchant_order_no VARCHAR(100),
  checksum VARCHAR(64),
  status VARCHAR(20) DEFAULT 'processing',
  processed_at TIMESTAMP,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX idx_webhook_trade_no ON webhook_requests(trade_no);
CREATE INDEX idx_webhook_checksum ON webhook_requests(checksum);

防重放檢查邏輯

async function checkDuplicate(tradeNo: string): Promise {
  const existing = await db.webhookRequest.findUnique({
    where: { tradeNo }
  });
  return !!existing;
}

async function markProcessed(tradeNo: string): Promise {
  await db.webhookRequest.create({
    data: {
      tradeNo,
      provider: 'payuni',
      processedAt: new Date(),
    }
  });
}

Step 4: 測試 Webhook

本地測試方法

  1. 使用 ngrok 暴露本地服務

``bash ngrok http 3000 ``

  1. 設定 NotifyURL

將 ngrok 提供的 HTTPS URL 設定為 NotifyURL

  1. 發起測試付款

在統一金流測試環境發起付款

  1. 檢查日誌

確認 Webhook 正確接收並處理


回調參數說明

成功付款通知參數

| 參數 | 說明 | |------|------| | Status | 付款狀態 SUCCESS / FAIL | | MerchantOrderNo | 商店訂單編號 | | TradeNo | PAYUNi 交易編號 | | TradeAmt | 交易金額 | | PaymentType | 付款方式 | | PayTime | 付款時間 | | CheckCode | 驗證碼 |

CheckCode 計算規則

1. 將所有參數(除了 CheckCode)按字母順序排序
2. 組成 key=value&key=value 的字串
3. 在開頭加上 HashKey=xxx&,結尾加上 &HashIV=xxx
4. 進行 SHA256 雜湊後轉大寫

安全注意事項

  1. 使用 HTTPS - 正式環境必須使用 HTTPS
  2. 驗證簽名 - 每次都要驗證 CheckCode
  3. 防重放攻擊 - 記錄已處理的 TradeNo
  4. Constant-time 比較 - 使用 timingSafeEqual 防止 timing attack
  5. 記錄日誌 - 記錄所有 Webhook 請求供除錯

詳細參考文件

  • [程式碼範例](references/code-examples.md)
  • [回應參數說明](references/response-parameters.md)
  • [疑難排解](references/troubleshooting.md)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.