对接阿里语音合成证书

pkg/tts/aliyun.go

@@ -17,7 +17,8 @@ import (
 
 type AliTTS struct {
 	config.AliyunConfig
-	ctx context.Context
+	ctx         context.Context
+	tokenResult nls.TokenResult
 }
 
 type result struct {
@@ -49,10 +50,31 @@ func (tts *AliTTS) Sound(text string) {
 	}
 }
 
+func (tts *AliTTS) getToken() error {
+	if tts.tokenResult.ExpireTime != 0 && time.Unix(tts.tokenResult.ExpireTime, 0).After(time.Now()) {
+		return nil
+	}
+	tts.tokenResult = nls.TokenResult{}
+	resultMessage, err := nls.GetToken("cn-shanghai", "nls-meta.cn-shanghai.aliyuncs.com", tts.AccessKeyID, tts.AccessKeySecret, "2019-02-28")
+	if err != nil {
+		return err
+	} else if resultMessage.ErrMsg != "" {
+		return errorsx.ThirdPartyErr
+	}
+	tts.tokenResult = resultMessage.TokenResult
+	return nil
+}
+
 func (tts *AliTTS) Get(text string) (io.Reader, error) {
 	param := nls.DefaultSpeechSynthesisParam()
 	param.Volume = 100
-	connectConfig := nls.NewConnectionConfigWithToken(nls.DEFAULT_URL, tts.AppKey, tts.Token)
+
+	err := tts.getToken()
+	if err != nil {
+		return nil, err
+	}
+
+	connectConfig := nls.NewConnectionConfigWithToken(nls.DEFAULT_URL, tts.AppKey, tts.tokenResult.Id)
 
 	logger := nls.NewNlsLogger(leaf.DefaultWriter, "", log.LstdFlags|log.Ltime)
 	logger.SetLogSil(false)