back/internal/service/express.go

package service

import (
	"bytes"
	"crypto/tls"
	"io/ioutil"
	"net/http"
	"recook/tools"
	"strings"

	jsoniter "github.com/json-iterator/go"
	"github.com/pkg/errors"
)

type Packet struct {
	PicUrls []string  `json:"picUrls"`
	Name    string    `json:"name"`
	No      string    `json:"no"`
	Process []Process `json:"data"`
}

type Process struct {
	Context string `json:"context"`
	Time    string `json:"ftime"`
}

func QueryPackage(mobile, expressCompCode, expressNo string) (pac Packet, err error) {

	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}
	client := &http.Client{Transport: tr}

	buf := bytes.NewBuffer([]byte(newRequestParam(mobile, expressCompCode, expressNo)))

	request, err := http.NewRequest("POST", url, buf)
	request.Header.Add("Content-Type", "application/x-www-form-urlencoded")
	if err != nil {
		return
	}

	response, err := client.Do(request)
	if err != nil {
		err = errors.New("DO err:" + err.Error())
		return
	}

	result, err := ioutil.ReadAll(response.Body)
	if err != nil {
		err = errors.New("Read err:" + err.Error())
		return
	}
	response.Body.Close()

	_ = jsoniter.Unmarshal(result, &pac)

	return

}

const (
	key      = "EcrXiVGj6488"
	customer = "8547631AFB44524C4AB3F88557444A5D"
	url      = "https://poll.kuaidi100.com/poll/query.do"
)

func newRequestParam(phone string, code string, no string) string {
	type param struct {
		Com   string `json:"com"`
		Num   string `json:"num"`
		Phone string `json:"phone"`
	}

	p := param{
		code,
		no,
		phone,
	}

	s, _ := jsoniter.Marshal(&p)
	sign := strings.ToUpper(tools.MD5(string(s) + key + customer))

	return "customer=" + customer + "&sign=" + sign + "&param=" + string(s)
}