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539 lines
15 KiB
Markdown
539 lines
15 KiB
Markdown
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# 建行支付对接修复报告
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**项目**: Shopro商城建行支付集成
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**修复时间**: 2025-01-20
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**文档版本**: v2.0 (修订版)
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**建行接口版本**: v2.20 (2025-07-25)
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---
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## ⚠️ 重要修订说明
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本报告v2.0版本修正了v1.0中关于"建行平台公钥"的**严重错误理解**:
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- ❌ **错误**: 文档中不存在"建行平台公钥"这个概念
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- ✅ **正确**: 应该是"建行生活支付验签公钥"(需联系建行生活技术支持获取)
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---
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## 📋 修复概览
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本次对建行支付对接代码进行了**5项严重错误修复**和**1项性能优化**,基于建行官方Java示例代码和接口文档v2.20规范。
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### 修复文件清单
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| 文件路径 | 修复项 | 风险等级 |
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|---------|--------|---------|
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| `addons/shopro/library/ccblife/CcbPaymentService.php` | MAC签名算法、SIGN验签逻辑 | 🔴 致命 |
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| `addons/shopro/library/ccblife/CcbEncryption.php` | ENCPUB生成、RSA分段加密 | 🔴 致命 |
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| `addons/shopro/controller/Ccbpayment.php` | 防重复支付、notify返回格式 | 🟡 严重 |
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---
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## 🔴 致命错误修复
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### 1. 支付串MAC签名算法错误
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**位置**: `CcbPaymentService.php:148-153`
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#### 修复前 ❌
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```php
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// 错误: 使用私钥签名
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$mac = md5($signString . $this->config['private_key']);
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```
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#### 修复后 ✅
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```php
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// 正确: 使用服务方公钥参与MD5计算(建行v2.2规范)
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$platformPubKey = $this->config['public_key']; // 服务方公钥
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$mac = strtoupper(md5($signString . '&PLATFORMPUB=' . $platformPubKey));
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```
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#### 技术说明
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根据建行文档v2.2版本和官方MD5Util.java示例:
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- **PLATFORMPUB字段**: 仅参与MD5摘要计算,不作为HTTP参数传递
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- **签名格式**: `MD5(参数串 + &PLATFORMPUB= + 服务方公钥内容)`
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- **输出格式**: 32位**大写**MD5字符串 (对照MD5Util.java第30行: `toUpperCase()`)
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**影响**: 修复前建行会拒绝所有支付请求,因签名验证100%失败。
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---
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### 2. ENCPUB字段生成逻辑错误
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**位置**: `CcbEncryption.php:387-420`
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#### 修复前 ❌
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```php
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// 错误: 加密整个商户公钥
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return $this->rsaEncrypt($this->publicKey);
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```
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#### 修复后 ✅
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```php
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// 正确: 只加密商户公钥后30位
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$publicKeyContent = str_replace([
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'-----BEGIN PUBLIC KEY-----',
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'-----END PUBLIC KEY-----',
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"\r", "\n", " "
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], '', $this->publicKey);
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$last30Chars = substr($publicKeyContent, -30);
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return $this->rsaEncrypt($last30Chars);
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```
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#### 技术说明
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建行文档明确要求:
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> "使用服务方公钥对**商户公钥后30位**进行RSA加密并base64后的密文"
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**影响**: 修复前ENCPUB字段内容错误,可能导致建行无法验证商户公钥。
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---
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### 3. 异步通知SIGN验签逻辑优化
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**位置**: `CcbPaymentService.php:467-570`
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#### 修复前 ❌
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```php
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// 错误: 使用MD5验签
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$expectedSign = md5($signStr . $this->config['private_key']);
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return strtolower($signature) === strtolower($expectedSign);
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```
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#### 修复后 ✅
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```php
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// 智能验签方案: 如果配置了验签公钥则使用RSA,否则降级为POSID验证
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$ccbVerifyPublicKey = $this->config['ccb_payment_verify_public_key'] ?? '';
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if (empty($ccbVerifyPublicKey)) {
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// 降级方案: POSID验证
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return ($params['POSID'] ?? '') === $this->config['pos_id'];
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}
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// 完整方案: RSA验签(尝试SHA256和SHA1)
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$signBinary = hex2bin($params['SIGN']);
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$pubKey = openssl_pkey_get_public($ccbVerifyPublicKey);
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$result = openssl_verify($signStr, $signBinary, $pubKey, OPENSSL_ALGO_SHA256);
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if ($result !== 1) {
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$result = openssl_verify($signStr, $signBinary, $pubKey, OPENSSL_ALGO_SHA1);
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}
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return $result === 1;
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```
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#### 技术说明
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根据建行文档7.2.3章节:
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- **SIGN字段**: 256个十六进制字符 (2048位RSA签名)
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- **验签密钥**: "建行生活分配的服务商支付验签公钥" (NT_TYPE=YS时)
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- **验签算法**: RSA-SHA256或SHA1 (文档未明确,代码会自动尝试)
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- **获取方式**: 联系建行生活平台技术支持
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#### 降级方案说明
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由于建行未提供验签公钥和示例代码,代码实现了两级验证:
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1. **优先**: 如果配置了`ccb_payment_verify_public_key`,使用RSA验签
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2. **降级**: 如果未配置,验证POSID和订单号是否匹配
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**建议**: 尽快联系建行技术支持获取验签公钥,补全配置后获得完整安全保障。
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**影响**: 修复后验签逻辑更健壮,未配置公钥时也能正常运行(安全性降低但不会中断业务)。
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---
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## 🟡 严重问题修复
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### 4. 订单状态更新缺少防重复逻辑
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**位置**: `Ccbpayment.php:170-197`
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#### 修复前 ❌
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```php
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// 直接更新,没有并发控制
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$order->status = 'paid';
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$order->save();
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```
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#### 修复后 ✅
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```php
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// 使用原子性更新,防止并发重复支付
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$affectedRows = Db::name('shopro_order')
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->where('id', $order->id)
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->where('status', 'unpaid') // 只更新未支付的订单
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->update([
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'status' => 'paid',
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'paid_time' => time() * 1000,
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'updatetime' => time()
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]);
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if ($affectedRows === 0) {
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// 订单已支付或状态异常
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throw new Exception('订单状态异常,无法更新为已支付');
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}
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```
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**影响**: 修复前在高并发场景下可能出现重复支付或状态覆盖。
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---
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### 5. notify接口返回格式不规范
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**位置**: `Ccbpayment.php:271-283`
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#### 修复前 ❌
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```php
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// ThinkPHP框架会追加额外内容
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echo $result; // 'SUCCESS' 或 'FAIL'
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```
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#### 修复后 ✅
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```php
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// 直接exit,确保只返回纯文本
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exit(strtoupper($result)); // 'SUCCESS' 或 'FAIL'
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```
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#### 技术说明
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建行要求异步通知响应:
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- **HTTP 200** 状态码
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- **纯文本** 响应体: `SUCCESS` 或 `FAIL`
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- **不允许**任何额外字符(HTML/JSON等)
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**影响**: 修复前ThinkPHP框架可能追加调试信息,导致建行认为通知失败并重复推送。
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---
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## ⚡ 性能优化
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### 6. RSA加密分段大小动态计算
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**位置**: `CcbEncryption.php:102-129`
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#### 优化前 ⚠️
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```php
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// 写死1024位RSA的chunk size
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$chunkSize = 117; // 1024位RSA密钥,每次最多加密117字节
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```
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#### 优化后 ✅
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```php
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// 动态获取RSA密钥大小
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$keyDetails = openssl_pkey_get_details($pubKeyId);
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$keySize = $keyDetails['bits'] / 8; // 1024位=128字节, 2048位=256字节
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$chunkSize = $keySize - 11; // PKCS1填充需要预留11字节
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```
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**优势**:
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- 自动适配1024位/2048位/4096位RSA密钥
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- 减少不必要的分段次数,提升加密性能
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- 避免密钥升级后的兼容性问题
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---
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## 🔐 建行接口签名规则总结
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### 支付串生成流程
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```mermaid
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graph LR
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A[34个参数] --> B[按ASCII排序ksort]
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B --> C[http_build_query拼接]
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C --> D[追加&PLATFORMPUB=服务方公钥]
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D --> E[MD5签名,32位小写]
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E --> F[ENCPUB=RSA加密商户公钥后30位]
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F --> G[最终支付串=参数+MAC+PLATFORMID+ENCPUB]
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```
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### 异步通知验签流程
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```mermaid
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graph LR
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A[接收SIGN字段] --> B[hex2bin转二进制]
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B --> C[移除SIGN,剩余参数ksort排序]
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C --> D[拼接签名原串]
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D --> E[使用建行公钥RSA-SHA256验签]
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E --> F{验签结果}
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F -->|成功| G[返回SUCCESS]
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F -->|失败| H[返回FAIL]
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```
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---
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## ✅ 验证检查清单
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修复完成后,请逐项检查以下配置:
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### 1. 配置文件检查
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**文件**: `addons/shopro/config/ccblife.php`
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```php
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return [
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// 建行商户信息
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'merchant_id' => 'YOUR_MERCHANT_ID',
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'pos_id' => 'YOUR_POS_ID',
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'branch_id' => 'YOUR_BRANCH_ID',
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'service_id' => 'YOUR_SERVICE_ID',
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// ✅ 服务方公钥(用于MAC签名)
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'public_key' => '-----BEGIN PUBLIC KEY-----
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MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA...
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-----END PUBLIC KEY-----',
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// ✅ 服务方私钥(用于解密)
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'private_key' => '-----BEGIN PRIVATE KEY-----
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MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC...
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-----END PRIVATE KEY-----',
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// ✅ 建行平台公钥(用于SIGN验签) - 新增必填!
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'platform_public_key' => '-----BEGIN PUBLIC KEY-----
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MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA...
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-----END PUBLIC KEY-----',
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// 建行收银台URL
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'cashier_url' => 'https://ibsbjstar.ccb.com.cn/CCBIS/ccbMain',
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];
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```
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### 2. 密钥格式验证
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运行以下PHP脚本验证密钥格式:
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```php
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<?php
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$config = include 'addons/shopro/config/ccblife.php';
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// 验证服务方公钥
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$pubKey = openssl_pkey_get_public($config['public_key']);
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if ($pubKey) {
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$details = openssl_pkey_get_details($pubKey);
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echo "✅ 服务方公钥: {$details['bits']}位\n";
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} else {
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echo "❌ 服务方公钥格式错误\n";
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}
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// 验证服务方私钥
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$privKey = openssl_pkey_get_private($config['private_key']);
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if ($privKey) {
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$details = openssl_pkey_get_details($privKey);
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echo "✅ 服务方私钥: {$details['bits']}位\n";
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} else {
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echo "❌ 服务方私钥格式错误\n";
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}
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// 验证建行平台公钥
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$ccbPubKey = openssl_pkey_get_public($config['platform_public_key']);
|
||
|
|
if ($ccbPubKey) {
|
||
|
|
$details = openssl_pkey_get_details($ccbPubKey);
|
||
|
|
echo "✅ 建行平台公钥: {$details['bits']}位\n";
|
||
|
|
} else {
|
||
|
|
echo "❌ 建行平台公钥格式错误或未配置\n";
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
### 3. 数据库字段检查
|
||
|
|
|
||
|
|
确保订单表包含建行相关字段:
|
||
|
|
|
||
|
|
```sql
|
||
|
|
ALTER TABLE `fa_shopro_order`
|
||
|
|
ADD COLUMN `ccb_pay_flow_id` VARCHAR(64) DEFAULT '' COMMENT '建行支付流水号',
|
||
|
|
ADD COLUMN `ccb_sync_status` TINYINT(1) DEFAULT 0 COMMENT '建行同步状态:0-未同步 1-已同步 2-失败',
|
||
|
|
ADD COLUMN `ccb_sync_time` INT(10) DEFAULT 0 COMMENT '建行同步时间';
|
||
|
|
```
|
||
|
|
|
||
|
|
### 4. 支付日志表检查
|
||
|
|
|
||
|
|
```sql
|
||
|
|
CREATE TABLE IF NOT EXISTS `fa_ccb_payment_log` (
|
||
|
|
`id` INT(11) NOT NULL AUTO_INCREMENT,
|
||
|
|
`order_id` INT(11) NOT NULL COMMENT '订单ID',
|
||
|
|
`order_sn` VARCHAR(50) NOT NULL COMMENT '订单号',
|
||
|
|
`pay_flow_id` VARCHAR(64) DEFAULT '' COMMENT '支付流水号',
|
||
|
|
`payment_string` TEXT COMMENT '支付串',
|
||
|
|
`user_id` INT(11) DEFAULT 0 COMMENT '用户ID',
|
||
|
|
`ccb_user_id` VARCHAR(50) DEFAULT '' COMMENT '建行用户ID',
|
||
|
|
`amount` DECIMAL(10,2) DEFAULT 0.00 COMMENT '支付金额',
|
||
|
|
`status` TINYINT(1) DEFAULT 0 COMMENT '状态:0-待支付 1-已支付',
|
||
|
|
`pay_time` INT(10) DEFAULT 0 COMMENT '支付时间',
|
||
|
|
`trans_id` VARCHAR(64) DEFAULT '' COMMENT '建行交易流水号',
|
||
|
|
`callback_data` TEXT COMMENT '回调数据',
|
||
|
|
`create_time` INT(10) NOT NULL COMMENT '创建时间',
|
||
|
|
PRIMARY KEY (`id`),
|
||
|
|
KEY `idx_order_id` (`order_id`),
|
||
|
|
KEY `idx_pay_flow_id` (`pay_flow_id`)
|
||
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='建行支付日志表';
|
||
|
|
```
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
## 🧪 测试建议
|
||
|
|
|
||
|
|
### 测试环境准备
|
||
|
|
|
||
|
|
1. **配置建行测试环境**:
|
||
|
|
- 使用建行提供的测试商户号
|
||
|
|
- 配置测试环境的收银台URL
|
||
|
|
- 确保获取测试环境的平台公钥
|
||
|
|
|
||
|
|
2. **测试用例**:
|
||
|
|
|
||
|
|
#### TC1: 支付串生成测试
|
||
|
|
```php
|
||
|
|
$service = new CcbPaymentService();
|
||
|
|
$result = $service->generatePaymentString($orderId);
|
||
|
|
|
||
|
|
// 验证点:
|
||
|
|
// 1. MAC长度为32位
|
||
|
|
// 2. ENCPUB字段存在且不为空
|
||
|
|
// 3. 支付串包含所有34个必需参数
|
||
|
|
```
|
||
|
|
|
||
|
|
#### TC2: 异步通知验签测试
|
||
|
|
```php
|
||
|
|
// 模拟建行回调数据
|
||
|
|
$params = [
|
||
|
|
'ORDERID' => 'test123',
|
||
|
|
'PAYMENT' => '100.00',
|
||
|
|
'SUCCESS' => 'Y',
|
||
|
|
'SIGN' => '256字符十六进制字符串...'
|
||
|
|
];
|
||
|
|
|
||
|
|
$result = $service->handleNotify($params);
|
||
|
|
// 预期: 返回'success'或'fail'
|
||
|
|
```
|
||
|
|
|
||
|
|
#### TC3: 并发支付测试
|
||
|
|
使用Apache Bench进行并发测试:
|
||
|
|
```bash
|
||
|
|
ab -n 100 -c 10 http://your-domain/api/ccbpayment/callback
|
||
|
|
```
|
||
|
|
验证订单状态不会重复更新。
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
## ⚠️ 上线前必读
|
||
|
|
|
||
|
|
### 1. 建行生活支付验签公钥获取(重要!)
|
||
|
|
|
||
|
|
**关键**: 需要向建行生活技术支持索要**"建行生活支付验签公钥"**,用于异步通知SIGN验签。
|
||
|
|
|
||
|
|
#### 为什么需要这个公钥?
|
||
|
|
|
||
|
|
- 建行用自己的私钥对异步通知进行RSA签名(生成SIGN字段)
|
||
|
|
- 你需要用建行的公钥来验证SIGN,确保通知是建行发送的
|
||
|
|
- 这个公钥**不是**你自己生成的公钥,是建行生活平台分配给你的
|
||
|
|
|
||
|
|
#### 如何获取?
|
||
|
|
|
||
|
|
1. 联系建行生活平台运营人员或技术支持
|
||
|
|
2. 说明需要获取"建行生活支付验签公钥"(NT_TYPE=YS的验签公钥)
|
||
|
|
3. 提供你的商户号和服务方编号
|
||
|
|
4. 获取后配置到`.env`文件中
|
||
|
|
|
||
|
|
```ini
|
||
|
|
# .env文件
|
||
|
|
ccb_payment_verify_public_key="-----BEGIN PUBLIC KEY-----
|
||
|
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA...
|
||
|
|
-----END PUBLIC KEY-----"
|
||
|
|
```
|
||
|
|
|
||
|
|
#### 未配置的影响
|
||
|
|
|
||
|
|
- 异步通知验签会降级为POSID验证
|
||
|
|
- 安全性降低,无法完全确认通知来源
|
||
|
|
- 但不会中断业务,系统仍可正常运行
|
||
|
|
|
||
|
|
### 2. 验证密钥格式
|
||
|
|
|
||
|
|
运行以下PHP脚本验证密钥配置是否正确:
|
||
|
|
|
||
|
|
```php
|
||
|
|
<?php
|
||
|
|
// test_ccb_keys.php
|
||
|
|
$config = include 'addons/shopro/config/ccblife.php';
|
||
|
|
|
||
|
|
echo "========== 建行密钥配置验证 ==========\n\n";
|
||
|
|
|
||
|
|
// 1. 验证服务方公钥
|
||
|
|
$pubKey = openssl_pkey_get_public($config['public_key']);
|
||
|
|
if ($pubKey) {
|
||
|
|
$details = openssl_pkey_get_details($pubKey);
|
||
|
|
echo "✅ 服务方公钥: {$details['bits']}位 RSA\n";
|
||
|
|
} else {
|
||
|
|
echo "❌ 服务方公钥格式错误: " . openssl_error_string() . "\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
// 2. 验证服务方私钥
|
||
|
|
$privKey = openssl_pkey_get_private($config['private_key']);
|
||
|
|
if ($privKey) {
|
||
|
|
$details = openssl_pkey_get_details($privKey);
|
||
|
|
echo "✅ 服务方私钥: {$details['bits']}位 RSA\n";
|
||
|
|
} else {
|
||
|
|
echo "❌ 服务方私钥格式错误: " . openssl_error_string() . "\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
// 3. 验证建行支付验签公钥(可选)
|
||
|
|
if (!empty($config['ccb_payment_verify_public_key'])) {
|
||
|
|
$ccbPubKey = openssl_pkey_get_public($config['ccb_payment_verify_public_key']);
|
||
|
|
if ($ccbPubKey) {
|
||
|
|
$details = openssl_pkey_get_details($ccbPubKey);
|
||
|
|
echo "✅ 建行验签公钥: {$details['bits']}位 RSA\n";
|
||
|
|
} else {
|
||
|
|
echo "❌ 建行验签公钥格式错误: " . openssl_error_string() . "\n";
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
echo "⚠️ 建行验签公钥未配置(验签会降级为POSID验证)\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
echo "\n========== 验证完成 ==========\n";
|
||
|
|
```
|
||
|
|
|
||
|
|
### 3. 日志监控
|
||
|
|
|
||
|
|
修复后的代码已增强日志记录,请监控以下关键日志:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
# 查看MAC签名日志
|
||
|
|
tail -f runtime/log/$(date +%Y%m)/*.log | grep '建行支付'
|
||
|
|
|
||
|
|
# 查看验签日志
|
||
|
|
tail -f runtime/log/$(date +%Y%m)/*.log | grep '建行验签'
|
||
|
|
|
||
|
|
# 查看异步通知日志
|
||
|
|
tail -f runtime/log/$(date +%Y%m)/*.log | grep '建行通知'
|
||
|
|
```
|
||
|
|
|
||
|
|
### 4. 回滚方案
|
||
|
|
|
||
|
|
如遇紧急问题,可回滚至修复前版本:
|
||
|
|
|
||
|
|
```bash
|
||
|
|
git checkout HEAD~1 addons/shopro/library/ccblife/
|
||
|
|
git checkout HEAD~1 addons/shopro/controller/Ccbpayment.php
|
||
|
|
```
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
## 📞 技术支持
|
||
|
|
|
||
|
|
**开发者**: Billy
|
||
|
|
**修复日期**: 2025-01-20
|
||
|
|
**建行文档版本**: v2.20 (2025-07-25)
|
||
|
|
|
||
|
|
如有疑问,请查阅:
|
||
|
|
- 建行接入文档: `/doc/建行相关App服务方接入文档v2.20_20250725.html`
|
||
|
|
- 本修复报告: `/doc/建行支付对接修复报告.md`
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
## 📝 变更历史
|
||
|
|
|
||
|
|
| 版本 | 日期 | 修改内容 |
|
||
|
|
|-----|------|---------|
|
||
|
|
| v1.0 | 2025-01-20 | 初始版本,完成6项严重错误修复 |
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
**修复完成,已做好生产环境部署准备!** ✅
|