voice/welcome-voice.go

package main

import (
	"bytes"
	"crypto/md5"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net/http"
	"net/url"
	"os"
	"strconv"
	"strings"
	"time"
)

func handler(w http.ResponseWriter, r *http.Request) {
	x_appid := "5c7fcc38"
	key := "57d53967332e21d23cf3389bf8129e28"
	curtime := strconv.FormatInt(time.Now().Unix(), 10)

	tt := make(map[string]string)
	tt["aue"] = "lame"
	tt["auf"] = "audio/L16;rate=16000"
	// tt["voice_name"] = "xiaoyan"
	tt["voice_name"] = "aisjiuxu"
	param, _ := json.Marshal(tt)
	base64_param := base64.StdEncoding.EncodeToString(param)

	md5Inst := md5.New()
	io.WriteString(md5Inst, key+curtime+base64_param)
	checksum := fmt.Sprintf("%x", md5Inst.Sum(nil))

	if r.Form == nil {
		r.ParseForm()
	}

	txt := r.FormValue("t")
	os.Stdout.WriteString("[" + time.Now().Local().Format("2006-01-02 15:04:05") + "][INFO] 接收到文字:  【" + txt + "】 \n")
	if txt == "" {
		w.Write([]byte(""))
		return
	}

	var data = url.Values{}
	data.Add("text", txt)
	req_body := data.Encode()

	client := &http.Client{}
	req, _ := http.NewRequest("POST", "http://api.xfyun.cn/v1/service/v1/tts", strings.NewReader(req_body))

	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	req.Header.Set("X-CurTime", curtime)
	req.Header.Set("X-Appid", x_appid)
	req.Header.Set("X-Param", base64_param)
	req.Header.Set("X-CheckSum", checksum)

	resp, _ := client.Do(req)
	defer resp.Body.Close()
	resp_body, _ := ioutil.ReadAll(resp.Body)

	w.Header().Add("Content-Type", "audio/mp3")
	w.Header().Add("Content-Transfer-Encoding", "binary")
	w.Header().Add("Expires", "0")
	w.Header().Add("Cache-Control", "no-cache")

	respType := resp.Header.Get("content-type")
	if strings.Index(respType, "text/plain") > -1 {
		os.Stderr.WriteString("[" + time.Now().Local().Format("2006-01-02 15:04:05") + "][ERROR]: " + string(resp_body) + "\n")
		w.Write([]byte(""))
		return
	}

	rd := bytes.NewReader(resp_body)
	http.ServeContent(w, r, "yinbin.mp3", time.Now().Local(), rd)
}

func main() {
	http.HandleFunc("/", handler)
	log.Fatal(http.ListenAndServe(":8090", nil))
}