diff --git a/xy_sh/valid.md b/xy_sh/valid.md new file mode 100644 index 0000000..e69a181 --- /dev/null +++ b/xy_sh/valid.md @@ -0,0 +1,636 @@ +// File: xy_sh/types.go +```go +package xy_sh + +// ===== 接口1:卡券/直充权益下单接口 ===== + +// OrderRequest 下单接口业务请求参数 +type OrderRequest struct { + ActCode string `json:"actCode"` // 活动code + GoodsCode string `json:"goodsCode"` // 供应商商品编号 + ActOrderNum string `json:"actOrderNum"` // 活动方订单号,唯一 + Account string `json:"account,omitempty"` // 充值账号 + CallbackUrl string `json:"callbackUrl,omitempty"` // 回调地址 +} + +// OrderData 下单接口响应解密后的业务数据 +type OrderData struct { + OrderNo string `json:"orderNo"` // 供应商订单号 + CouponNo string `json:"couponNo,omitempty"` // 卡号/短链 + CouponCode string `json:"couponCode,omitempty"` // 卡密 + Status int `json:"status"` // 状态:-1发放中 0成功 1失败 2已核销 3已过期 + ExpireTime string `json:"expireTime,omitempty"` // 有效期 yyyy-MM-dd HH:mm:ss +} + +// OrderResponse 下单接口响应 +type OrderResponse struct { + Code int `json:"code"` + Msg string `json:"msg"` + Data *OrderData `json:"data,omitempty"` +} + +// ===== 接口2:卡券/直充/微信立减金订单查询接口 ===== + +// QueryRequest 查询接口业务请求参数 +type QueryRequest struct { + ActCode string `json:"actCode"` // 活动code + OrderNo string `json:"orderNo"` // 供应商订单号 +} + +// QueryData 查询接口响应解密后的业务数据 +type QueryData struct { + OrderNo string `json:"orderNo"` // 供应商订单号 + Status int `json:"status"` // 订单状态 + Account string `json:"account,omitempty"` // 充值账号,直充类型时存在 + CardInfo *CardInfo `json:"cardInfo,omitempty"` // 卡券信息 + CouponId string `json:"couponId,omitempty"` // 微信优惠id +} + +// QueryResponse 查询接口响应 +type QueryResponse struct { + Code int `json:"code"` + Msg string `json:"msg"` + Data *QueryData `json:"data,omitempty"` +} + +// CardInfo 卡券信息 +type CardInfo struct { + CouponNo string `json:"couponNo"` // 卡号/短链 + CouponCode string `json:"couponCode"` // 卡密 + ExpireTime string `json:"expireTime"` // 过期时间 yyyy-MM-dd HH:mm:ss +} + +// ===== 接口3:微信立减金订单充值接口 ===== + +// WechatRechargeRequest 微信立减金充值业务请求参数 +type WechatRechargeRequest struct { + ActCode string `json:"actCode"` // 活动code + OrderNo string `json:"orderNo"` // 供应商订单号 + GoodsCode string `json:"goodsCode"` // 供应商商品编号 + ActOrderNum string `json:"actOrderNum"` // 活动方订单号,唯一 + AppId string `json:"appId"` // 公众账号ID + OpenId string `json:"openId"` // 微信用户标识 + CallbackUrl string `json:"callbackUrl,omitempty"` // 回调地址 +} + +// WechatRechargeData 微信立减金充值响应解密后的业务数据 +type WechatRechargeData struct { + OrderNo string `json:"orderNo"` // 供应商订单号 + Status int `json:"status"` // 订单状态 + CouponId string `json:"couponId,omitempty"` // 微信优惠id +} + +// WechatRechargeResponse 微信立减金充值响应 +type WechatRechargeResponse struct { + Code int `json:"code"` + Msg string `json:"msg"` + Data *WechatRechargeData `json:"data,omitempty"` +} + +// ===== 接口4:回调通知接口 ===== + +// CallbackRequest 回调通知业务请求参数 +type CallbackRequest struct { + OrderNo string `json:"orderNo"` // 供应商订单号 + ActOrderNum string `json:"actOrderNum"` // 活动方订单号 + Status int `json:"status"` // 订单状态 + Account string `json:"account,omitempty"` // 直充账号 + CardInfo *CardInfo `json:"cardInfo,omitempty"` // 卡券信息 + CouponId string `json:"couponId,omitempty"` // 微信优惠id +} + +// CallbackResponse 回调通知响应(HTTP响应) +type CallbackResponse struct { + StatusCode int `json:"-"` // HTTP状态码 + Body string `json:"-"` // 响应体内容 +} + +// ===== 通用结构 ===== + +// EncryptedRequest 加密请求体 +type EncryptedRequest struct { + EncryptedData string `json:"encryptedData"` +} + +// RawResponse 原始响应结构,data 字段为加密后的 JSON 字符串 +type RawResponse struct { + Code int `json:"code"` + Msg string `json:"msg"` + Data string `json:"data"` +} +``` + +// File: xy_sh/errors.go +```go +package xy_sh + +import "fmt" + +// Error 自定义错误类型,包含返回码和错误信息 +type Error struct { + Code int `json:"code"` + Message string `json:"msg"` +} + +// Error 实现 error 接口 +func (e *Error) Error() string { + return fmt.Sprintf("code=%d, msg=%s", e.Code, e.Message) +} + +// IsSuccess 判断业务返回码是否表示成功 +func IsSuccess(code int) bool { + return code == 0 +} +``` + +// File: xy_sh/crypto.go +```go +package xy_sh + +import ( + "bytes" + "crypto/cipher" + "crypto/hmac" + "crypto/rand" + "encoding/base64" + "encoding/hex" + "fmt" + "io" + "time" + + "github.com/tjfoc/gmsm/sm3" + "github.com/tjfoc/gmsm/sm4" +) + +// GenerateTimestampMillis 生成毫秒级时间戳字符串 +func GenerateTimestampMillis() string { + return fmt.Sprintf("%d", time.Now().UnixMilli()) +} + +// SM4Encrypt SM4-CBC模式加密 +// 使用随机IV,IV拼在密文前面,最终输出base64编码字符串 +func SM4Encrypt(plaintext []byte, key []byte) (string, error) { + if len(key) != 16 { + return "", fmt.Errorf("SM4密钥长度必须为16字节") + } + + block, err := sm4.NewCipher(key) + if err != nil { + return "", fmt.Errorf("创建SM4 cipher失败: %v", err) + } + + padded := pkcs7Padding(plaintext, block.BlockSize()) + + iv := make([]byte, block.BlockSize()) + if _, err := io.ReadFull(rand.Reader, iv); err != nil { + return "", fmt.Errorf("生成IV失败: %v", err) + } + + mode := cipher.NewCBCEncrypter(block, iv) + ciphertext := make([]byte, len(padded)) + mode.CryptBlocks(ciphertext, padded) + + result := append(iv, ciphertext...) + return base64.StdEncoding.EncodeToString(result), nil +} + +// SM4Decrypt SM4-CBC模式解密 +// 输入为base64编码字符串,前16字节为IV,后续为密文 +func SM4Decrypt(encryptedData string, key []byte) ([]byte, error) { + if len(key) != 16 { + return nil, fmt.Errorf("SM4密钥长度必须为16字节") + } + + data, err := base64.StdEncoding.DecodeString(encryptedData) + if err != nil { + return nil, fmt.Errorf("base64解码失败: %v", err) + } + + block, err := sm4.NewCipher(key) + if err != nil { + return nil, fmt.Errorf("创建SM4 cipher失败: %v", err) + } + + blockSize := block.BlockSize() + if len(data) < blockSize { + return nil, fmt.Errorf("数据长度不足") + } + iv := data[:blockSize] + ciphertext := data[blockSize:] + + mode := cipher.NewCBCDecrypter(block, iv) + plaintext := make([]byte, len(ciphertext)) + mode.CryptBlocks(plaintext, ciphertext) + + plaintext, err = pkcs7UnPadding(plaintext) + if err != nil { + return nil, fmt.Errorf("去除填充失败: %v", err) + } + + return plaintext, nil +} + +// GenerateSign 生成签名 +// 签名规则:将毫秒级时间戳timestamp字符串与encryptedData字符串直接拼接, +// 使用HMAC-SM3算法结合预先约定的SM3 salt进行加密,输出十六进制字符串 +func GenerateSign(timestamp string, encryptedData string, sm3Salt []byte) string { + data := timestamp + encryptedData + mac := hmac.New(sm3.New, sm3Salt) + mac.Write([]byte(data)) + return hex.EncodeToString(mac.Sum(nil)) +} + +// pkcs7Padding PKCS7填充 +func pkcs7Padding(data []byte, blockSize int) []byte { + padding := blockSize - len(data)%blockSize + padText := bytes.Repeat([]byte{byte(padding)}, padding) + return append(data, padText...) +} + +// pkcs7UnPadding 去除PKCS7填充 +func pkcs7UnPadding(data []byte) ([]byte, error) { + length := len(data) + if length == 0 { + return nil, fmt.Errorf("数据为空") + } + padding := int(data[length-1]) + if padding > length || padding == 0 { + return nil, fmt.Errorf("无效的填充") + } + for i := length - padding; i < length; i++ { + if data[i] != byte(padding) { + return nil, fmt.Errorf("无效的填充") + } + } + return data[:length-padding], nil +} +``` + +// File: xy_sh/client.go +```go +package xy_sh + +import ( + "bytes" + "context" + "encoding/json" + "fmt" + "io" + "net/http" +) + +// Client 供应商接口客户端 +type Client struct { + httpClient *http.Client + sm4Key []byte // SM4加密密钥,16字节 + sm3Salt []byte // SM3签名盐值 + orderURL string // 下单接口地址 + queryURL string // 查询接口地址 + rechargeURL string // 微信立减金充值接口地址 +} + +// NewClient 创建新的客户端 +// - sm4Key: SM4加密密钥,必须为16字节 +// - sm3Salt: SM3签名盐值 +// - orderURL: 下单接口地址 +// - queryURL: 查询接口地址 +// - rechargeURL: 微信立减金充值接口地址 +func NewClient(sm4Key []byte, sm3Salt []byte, orderURL, queryURL, rechargeURL string) (*Client, error) { + if len(sm4Key) != 16 { + return nil, fmt.Errorf("SM4密钥长度必须为16字节") + } + if len(sm3Salt) == 0 { + return nil, fmt.Errorf("SM3盐值不能为空") + } + return &Client{ + httpClient: &http.Client{}, + sm4Key: sm4Key, + sm3Salt: sm3Salt, + orderURL: orderURL, + queryURL: queryURL, + rechargeURL: rechargeURL, + }, nil +} + +// SetHTTPClient 设置自定义HTTP客户端 +func (c *Client) SetHTTPClient(httpClient *http.Client) { + c.httpClient = httpClient +} + +// doRequest 执行加密请求并解密响应 +func (c *Client) doRequest(ctx context.Context, url string, bizReq interface{}) (*RawResponse, error) { + // 1. 序列化业务参数为JSON + bizBody, err := json.Marshal(bizReq) + if err != nil { + return nil, fmt.Errorf("序列化业务参数失败: %v", err) + } + + // 2. SM4加密业务参数 + encryptedData, err := SM4Encrypt(bizBody, c.sm4Key) + if err != nil { + return nil, fmt.Errorf("SM4加密失败: %v", err) + } + + // 3. 生成时间戳和签名 + timestamp := GenerateTimestampMillis() + sign := GenerateSign(timestamp, encryptedData, c.sm3Salt) + + // 4. 构建加密请求体 + reqBody := EncryptedRequest{EncryptedData: encryptedData} + reqBytes, err := json.Marshal(reqBody) + if err != nil { + return nil, fmt.Errorf("序列化请求体失败: %v", err) + } + + // 5. 创建HTTP请求 + req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(reqBytes)) + if err != nil { + return nil, fmt.Errorf("创建HTTP请求失败: %v", err) + } + req.Header.Set("Content-Type", "application/json") + req.Header.Set("timestamp", timestamp) + req.Header.Set("sign", sign) + + // 6. 发送请求 + resp, err := c.httpClient.Do(req) + if err != nil { + return nil, fmt.Errorf("发送HTTP请求失败: %v", err) + } + defer resp.Body.Close() + + // 7. 读取响应体 + respBytes, err := io.ReadAll(resp.Body) + if err != nil { + return nil, fmt.Errorf("读取响应体失败: %v", err) + } + + // 8. 解析原始响应 + var rawResp RawResponse + if err := json.Unmarshal(respBytes, &rawResp); err != nil { + return nil, fmt.Errorf("解析响应JSON失败: %v", err) + } + + return &rawResp, nil +} + +// decryptData 解密响应中的data字段 +func (c *Client) decryptData(encryptedData string, target interface{}) error { + if encryptedData == "" { + return nil + } + plaintext, err := SM4Decrypt(encryptedData, c.sm4Key) + if err != nil { + return fmt.Errorf("SM4解密失败: %v", err) + } + if err := json.Unmarshal(plaintext, target); err != nil { + return fmt.Errorf("解析解密后数据失败: %v", err) + } + return nil +} + +// Order 卡券/直充权益下单 +// 适用于卡密、直充商品下单 +func (c *Client) Order(ctx context.Context, req *OrderRequest) (*OrderResponse, error) { + rawResp, err := c.doRequest(ctx, c.orderURL, req) + if err != nil { + return nil, err + } + + resp := &OrderResponse{ + Code: rawResp.Code, + Msg: rawResp.Msg, + } + + if rawResp.Data != "" { + var data OrderData + if err := c.decryptData(rawResp.Data, &data); err != nil { + return nil, err + } + resp.Data = &data + } + + return resp, nil +} + +// QueryOrder 卡券/直充/微信立减金订单查询 +// 通过供应商订单号查询订单状态 +func (c *Client) QueryOrder(ctx context.Context, req *QueryRequest) (*QueryResponse, error) { + rawResp, err := c.doRequest(ctx, c.queryURL, req) + if err != nil { + return nil, err + } + + resp := &QueryResponse{ + Code: rawResp.Code, + Msg: rawResp.Msg, + } + + if rawResp.Data != "" { + var data QueryData + if err := c.decryptData(rawResp.Data, &data); err != nil { + return nil, err + } + resp.Data = &data + } + + return resp, nil +} + +// WechatRecharge 微信立减金订单充值 +func (c *Client) WechatRecharge(ctx context.Context, req *WechatRechargeRequest) (*WechatRechargeResponse, error) { + rawResp, err := c.doRequest(ctx, c.rechargeURL, req) + if err != nil { + return nil, err + } + + resp := &WechatRechargeResponse{ + Code: rawResp.Code, + Msg: rawResp.Msg, + } + + if rawResp.Data != "" { + var data WechatRechargeData + if err := c.decryptData(rawResp.Data, &data); err != nil { + return nil, err + } + resp.Data = &data + } + + return resp, nil +} + +// SendCallback 发送回调通知(供应商调用行方回调接口) +// 返回的 CallbackResponse 中 StatusCode 为 HTTP 状态码,Body 为响应体内容 +func (c *Client) SendCallback(ctx context.Context, callbackURL string, req *CallbackRequest) (*CallbackResponse, error) { + // 1. 序列化业务参数 + bizBody, err := json.Marshal(req) + if err != nil { + return nil, fmt.Errorf("序列化回调参数失败: %v", err) + } + + // 2. SM4加密 + encryptedData, err := SM4Encrypt(bizBody, c.sm4Key) + if err != nil { + return nil, fmt.Errorf("SM4加密失败: %v", err) + } + + // 3. 生成时间戳和签名 + timestamp := GenerateTimestampMillis() + sign := GenerateSign(timestamp, encryptedData, c.sm3Salt) + + // 4. 构建请求体 + reqBody := EncryptedRequest{EncryptedData: encryptedData} + reqBytes, err := json.Marshal(reqBody) + if err != nil { + return nil, fmt.Errorf("序列化请求体失败: %v", err) + } + + // 5. 创建HTTP请求 + httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, callbackURL, bytes.NewReader(reqBytes)) + if err != nil { + return nil, fmt.Errorf("创建HTTP请求失败: %v", err) + } + httpReq.Header.Set("Content-Type", "application/json") + httpReq.Header.Set("timestamp", timestamp) + httpReq.Header.Set("sign", sign) + + // 6. 发送请求 + resp, err := c.httpClient.Do(httpReq) + if err != nil { + return nil, fmt.Errorf("发送回调请求失败: %v", err) + } + defer resp.Body.Close() + + // 7. 读取响应体 + respBytes, err := io.ReadAll(resp.Body) + if err != nil { + return nil, fmt.Errorf("读取回调响应失败: %v", err) + } + + return &CallbackResponse{ + StatusCode: resp.StatusCode, + Body: string(respBytes), + }, nil +} +``` + +// File: xy_sh/example_test.go +```go +package xy_sh + +import ( + "context" + "fmt" + "log" +) + +func ExampleClient_Order() { + // 初始化客户端 + sm4Key := []byte("1234567890abcdef") // 16字节SM4密钥 + sm3Salt := []byte("my_sm3_salt") // SM3盐值 + orderURL := "https://api.example.com/order" + queryURL := "https://api.example.com/query" + rechargeURL := "https://api.example.com/recharge" + + client, err := NewClient(sm4Key, sm3Salt, orderURL, queryURL, rechargeURL) + if err != nil { + log.Fatal(err) + } + + // 下单 + req := &OrderRequest{ + ActCode: "ACT001", + GoodsCode: "123456", + ActOrderNum: "00001", + Account: "19912345678", + CallbackUrl: "https://xxx/notice", + } + + resp, err := client.Order(context.Background(), req) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("code: %d, msg: %s\n", resp.Code, resp.Msg) + if resp.Data != nil { + fmt.Printf("orderNo: %s, status: %d\n", resp.Data.OrderNo, resp.Data.Status) + } +} + +func ExampleClient_QueryOrder() { + sm4Key := []byte("1234567890abcdef") + sm3Salt := []byte("my_sm3_salt") + + client, err := NewClient(sm4Key, sm3Salt, "https://api.example.com/order", "https://api.example.com/query", "https://api.example.com/recharge") + if err != nil { + log.Fatal(err) + } + + req := &QueryRequest{ + ActCode: "FBG6vdYqGE4mGX7EH/woEg==", + OrderNo: "HM1757046717684000102707339840b23222", + } + + resp, err := client.QueryOrder(context.Background(), req) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("code: %d, msg: %s\n", resp.Code, resp.Msg) + if resp.Data != nil { + fmt.Printf("orderNo: %s, status: %d\n", resp.Data.OrderNo, resp.Data.Status) + } +} + +func ExampleClient_WechatRecharge() { + sm4Key := []byte("1234567890abcdef") + sm3Salt := []byte("my_sm3_salt") + + client, err := NewClient(sm4Key, sm3Salt, "https://api.example.com/order", "https://api.example.com/query", "https://api.example.com/recharge") + if err != nil { + log.Fatal(err) + } + + req := &WechatRechargeRequest{ + ActCode: "FBG6vdYqGE4mGX7EH/woEg==", + GoodsCode: "0001", + ActOrderNum: "0001", + OpenId: "0001", + AppId: "00001", + } + + resp, err := client.WechatRecharge(context.Background(), req) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("code: %d, msg: %s\n", resp.Code, resp.Msg) + if resp.Data != nil { + fmt.Printf("orderNo: %s, status: %d, couponId: %s\n", resp.Data.OrderNo, resp.Data.Status, resp.Data.CouponId) + } +} + +func ExampleClient_SendCallback() { + sm4Key := []byte("1234567890abcdef") + sm3Salt := []byte("my_sm3_salt") + + client, err := NewClient(sm4Key, sm3Salt, "https://api.example.com/order", "https://api.example.com/query", "https://api.example.com/recharge") + if err != nil { + log.Fatal(err) + } + + req := &CallbackRequest{ + OrderNo: "HM202509291010001", + ActOrderNum: "XY2025092910100001", + Status: 3, + Account: "19912345678", + } + + resp, err := client.SendCallback(context.Background(), "https://bank.example.com/callback", req) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("statusCode: %d, body: %s\n", resp.StatusCode, resp.Body) +} +``` \ No newline at end of file