254 lines
6.8 KiB
Go
254 lines
6.8 KiB
Go
package nuoer
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import (
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"bytes"
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"context"
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"crypto/md5"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"strings"
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"time"
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"tyapi-server/internal/shared/external_logger"
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)
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const defaultRequestTimeout = 4 * time.Second
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// nuoerResponse 诺尔智汇通用响应
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type nuoerResponse struct {
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Code int `json:"code"`
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Msg string `json:"msg"`
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SeqNo string `json:"seqNo"`
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Data interface{} `json:"data"`
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}
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// serviceConfig 诺尔智汇服务运行时配置
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type serviceConfig struct {
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URL string
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AppID string
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AppSecret string
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Timeout time.Duration
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}
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// NuoerService 诺尔智汇服务
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type NuoerService struct {
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config serviceConfig
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logger *external_logger.ExternalServiceLogger
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}
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// NewNuoerService 创建诺尔智汇服务实例
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func NewNuoerService(url, appID, appSecret string, timeout time.Duration, logger *external_logger.ExternalServiceLogger) *NuoerService {
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if timeout <= 0 {
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timeout = defaultRequestTimeout
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}
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return &NuoerService{
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config: serviceConfig{
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URL: url,
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AppID: appID,
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AppSecret: appSecret,
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Timeout: timeout,
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},
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logger: logger,
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}
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}
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func (s *NuoerService) generateRequestID() string {
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timestamp := time.Now().UnixNano()
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hash := md5.Sum([]byte(fmt.Sprintf("%d_%s", timestamp, s.config.AppID)))
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return fmt.Sprintf("nuoer_%x", hash[:8])
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}
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func (s *NuoerService) CallAPI(ctx context.Context, apiKey, apiPath string, body map[string]string) (*nuoerResponse, error) {
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requestURL := strings.TrimSuffix(s.config.URL, "/")
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if apiPath != "" {
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if !strings.HasPrefix(apiPath, "/") {
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apiPath = "/" + apiPath
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}
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requestURL += apiPath
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}
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requestID := s.generateRequestID()
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startTime := time.Now()
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var transactionID string
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if id, ok := ctx.Value("transaction_id").(string); ok {
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transactionID = id
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}
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// 对调用方传入的 body 全量参与加签（排除空值，按 key 升序，见 Sign）
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sign := Sign(body, s.config.AppSecret)
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requestPayload := map[string]interface{}{
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"appId": s.config.AppID,
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"sign": sign,
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"apiKey": apiKey,
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"body": body,
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}
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if s.logger != nil {
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s.logger.LogRequest(requestID, transactionID, apiKey, requestURL)
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}
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bodyBytes, err := json.Marshal(requestPayload)
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if err != nil {
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err = errors.Join(ErrSystem, err)
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, requestURL, bytes.NewBuffer(bodyBytes))
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if err != nil {
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err = errors.Join(ErrSystem, err)
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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req.Header.Set("Content-Type", "application/json")
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client := &http.Client{Timeout: s.config.Timeout}
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resp, err := client.Do(req)
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if err != nil {
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err = wrapHTTPError(err)
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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defer resp.Body.Close()
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respBody, err := io.ReadAll(resp.Body)
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if err != nil {
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err = errors.Join(ErrSystem, err)
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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if s.logger != nil {
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s.logger.LogResponse(requestID, transactionID, apiKey, resp.StatusCode, time.Since(startTime))
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}
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if resp.StatusCode != http.StatusOK {
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err = errors.Join(ErrDatasource, fmt.Errorf("HTTP状态码 %d", resp.StatusCode))
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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var nuoerResp nuoerResponse
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if err := json.Unmarshal(respBody, &nuoerResp); err != nil {
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err = errors.Join(ErrSystem, fmt.Errorf("响应解析失败: %w", err))
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if s.logger != nil {
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s.logger.LogError(requestID, transactionID, apiKey, err, requestPayload)
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}
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return nil, err
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}
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if nuoerResp.Code != CodeSuccess {
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nuoerErr := NewNuoerError(nuoerResp.Code, nuoerResp.Msg)
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err = errors.Join(GetErrByPlatformCode(nuoerResp.Code), nuoerErr)
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if s.logger != nil {
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s.logger.LogErrorWithResponseID(requestID, transactionID, apiKey, nuoerErr, requestPayload, nuoerResp.SeqNo)
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}
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return nil, err
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}
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if nuoerResp.Data == nil {
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err = errors.Join(ErrSystem, errors.New("响应 data 为空"))
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if s.logger != nil {
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s.logger.LogErrorWithResponseID(requestID, transactionID, apiKey, err, requestPayload, nuoerResp.SeqNo)
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}
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return nil, err
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}
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busiCode, busiMsg, ok := parseDataBusiInfo(nuoerResp.Data)
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if !ok {
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err = errors.Join(ErrSystem, errors.New("响应 data 无法解析 busiCode"))
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if s.logger != nil {
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s.logger.LogErrorWithResponseID(requestID, transactionID, apiKey, err, requestPayload, nuoerResp.SeqNo)
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}
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return nil, err
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}
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if busiCode != BusiCodeSuccess {
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busiErr := NewNuoerBusiError(busiCode, busiMsg)
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err = errors.Join(GetErrByBusiCode(busiCode), busiErr)
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if s.logger != nil {
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s.logger.LogErrorWithResponseID(requestID, transactionID, apiKey, busiErr, requestPayload, nuoerResp.SeqNo)
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}
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return nil, err
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}
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cleanedData, err := stripBusiMetaFromData(nuoerResp.Data)
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if err != nil {
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err = errors.Join(ErrSystem, fmt.Errorf("响应 data 清理失败: %w", err))
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if s.logger != nil {
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s.logger.LogErrorWithResponseID(requestID, transactionID, apiKey, err, requestPayload, nuoerResp.SeqNo)
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}
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return nil, err
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}
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nuoerResp.Data = cleanedData
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return &nuoerResp, nil
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}
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// nuoerDataBusiMeta 业务层状态字段，仅用于解析校验，不对外返回
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type nuoerDataBusiMeta struct {
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BusiCode int `json:"busiCode"`
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BusiMsg string `json:"busiMsg"`
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}
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// parseDataBusiInfo 从各接口不同的 data 结构中解析 busiCode、busiMsg
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func parseDataBusiInfo(data interface{}) (busiCode int, busiMsg string, ok bool) {
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if data == nil {
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return 0, "", false
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}
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raw, err := json.Marshal(data)
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if err != nil {
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return 0, "", false
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}
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var meta nuoerDataBusiMeta
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if err := json.Unmarshal(raw, &meta); err != nil {
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return 0, "", false
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}
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return meta.BusiCode, meta.BusiMsg, true
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}
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// stripBusiMetaFromData 去掉 data 中的 busiCode、busiMsg，仅保留业务载荷
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func stripBusiMetaFromData(data interface{}) (interface{}, error) {
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raw, err := json.Marshal(data)
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if err != nil {
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return nil, err
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}
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var payload map[string]interface{}
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if err := json.Unmarshal(raw, &payload); err != nil {
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return nil, err
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}
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delete(payload, "busiCode")
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delete(payload, "busiMsg")
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return payload, nil
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}
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func wrapHTTPError(err error) error {
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if err == context.DeadlineExceeded {
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return errors.Join(ErrDatasource, err)
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}
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if netErr, ok := err.(interface{ Timeout() bool }); ok && netErr.Timeout() {
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return errors.Join(ErrDatasource, err)
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}
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switch err.Error() {
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case "context deadline exceeded", "timeout", "Client.Timeout exceeded", "net/http: request canceled":
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return errors.Join(ErrDatasource, err)
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default:
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return errors.Join(ErrSystem, err)
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}
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}
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