abango-rest/etc/network.go

package etc

import (
	"bytes"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"io/ioutil"
	"mime/multipart"
	"net/http"
	"net/url"
	"os"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	time "time"
)

func GetHttpResponseSimplePost(method string, apiurl string, jsBytes []byte) (retbody []byte, retsta []byte, reterr error) {

	response, err := http.Post(apiurl, "application/json", bytes.NewBuffer(jsBytes))
	if err != nil {
		fmt.Printf("The HTTP request failed with error %s\n", err)
	} else {
		retbody, _ = ioutil.ReadAll(response.Body)
	}
	return retbody, []byte(strconv.Itoa(response.StatusCode)), nil

}

func GetHttpResponse(method string, apiurl string, jsBytes []byte) ([]byte, []byte, error) {

	reader := bytes.NewBuffer(jsBytes)
	req, err := http.NewRequest(method, apiurl, reader)
	if err != nil {
		return nil, []byte("909"), MyErr("WERZDSVADFZ-http.NewRequest", err, false)
	}

	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Accept", "application/json")
	req.Header.Add("Endpoint-Agent", "abango-rest-api-v1.0")
	req.Header.Add("Accept-Language", "en-US")
	req.Header.Add("User-Agent", runtime.GOOS+"-"+runtime.Version()) // for checking OS Type in Server
	// 들어가지 않으면 Request Reject 됨.  //Go 에서는 SERVER_NAME 을 구할 방법이 없다. 아직까지는
	req.Header.Add("FrontendHost", "localhost:normal")
	req.Header.Add("RemoteIp", "localhost")
	req.Header.Add("Referer", "http://localhost")
	req.Header.Add("DeviceDesc", "API-Developer-Device")

	i := len(os.Args)
	if i != 1 { // 1일 경우는 go function call 의 경우 이므로  memory fault 가 난다.
		gateToken := os.Args[i-2]
		if len(gateToken) == 20 { // Argument 뒤에서 2번째 Arg가 20자리이면 GateToken 이라고 간주
			req.Header.Add("GateToken", gateToken)
		}
	}

	req.Body = ioutil.NopCloser(bytes.NewReader(jsBytes))

	// Client객체에서 Request 실행
	client := &http.Client{
		Timeout: time.Second * 3600, //Otherwirse, it can cause crash without this line. Must Must.
		// Timeout: time.Second * 20, //Otherwirse, it can cause crash without this line. Must Must.
	} // Normal is 10 but extend 20 on 1 Dec 2018

	// fmt.Println(reflect.TypeOf(respo))
	resp, err := client.Do(req)
	if err != nil {
		return nil, []byte("909"), MyErr("WERZDSVXBDCZSRE-client.Do "+apiurl, err, false)
	}
	defer resp.Body.Close()

	byteRtn, _ := ioutil.ReadAll(resp.Body)
	return byteRtn, []byte(strconv.Itoa(resp.StatusCode)), nil

}

func UploadFileResponse(method string, apiurl string, jsBytes []byte) ([]byte, []byte, error) {

	paramFile := "file"
	uploader := struct {
		FilePath string `json:"FilePath"`
	}{}

	var params map[string]interface{}
	if err := json.Unmarshal(jsBytes, &uploader); err == nil {
		params, _ = StructToMap(uploader, "json")
	}

	reqBd := &bytes.Buffer{}
	writer := multipart.NewWriter(reqBd)
	//  추가할 폼필드는  writer.WriteField("key", "Value") 이렇게 작업 한다.
	path := fmt.Sprint(params["FilePath"])
	file, err := os.Open(path)
	if err != nil {
		return nil, []byte("804"), errors.New("OLKMBVF-os.Open file, " + path + " " + err.Error())
	}
	defer file.Close()

	part, err := writer.CreateFormFile(paramFile, filepath.Base(path))
	if err != nil {
		return nil, []byte("804"), errors.New("WER%^TGCDS-CreateFormFile, " + path + err.Error())
	}
	_, err = io.Copy(part, file)

	if err = writer.Close(); err != nil {
		return nil, []byte("804"), errors.New("YUHGTYGHK-writer.Close" + err.Error())
	}

	req, err := http.NewRequest(method, apiurl, reqBd)
	// reader := bytes.NewBuffer(jsBytes)
	// req, err := http.NewRequest(method, apiurl, reader)
	if err != nil {
		return nil, []byte("804"), MyErr("WERZDSVADFZ-http.NewRequest", err, false)
	}

	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Accept", "application/json")
	req.Header.Add("Endpoint-Agent", "abango-rest-api-v1.0")
	req.Header.Add("Accept-Language", "en-US")
	req.Header.Add("User-Agent", runtime.GOOS+"-"+runtime.Version()) // for checking OS Type in Server
	// 들어가지 않으면 Request Reject 됨.  //Go 에서는 SERVER_NAME 을 구할 방법이 없다. 아직까지는
	req.Header.Add("FrontendHost", "localhost:normal")
	req.Header.Add("RemoteIp", "localhost")
	req.Header.Add("Referer", "http://localhost")

	i := len(os.Args)
	if i != 1 { // 1일 경우는 go function call 의 경우 이므로  memory fault 가 난다.
		gateToken := os.Args[i-2]
		if len(gateToken) == 20 { // Argument 뒤에서 2번째 Arg가 20자리이면 GateToken 이라고 간주
			req.Header.Add("GateToken", gateToken)
		}
	}

	// fmt.Println(writer.FormDataContentType())
	req.Header.Set("Content-Type", writer.FormDataContentType())
	// req.Body = ioutil.NopCloser(bytes.NewReader(jsBytes))

	// Client객체에서 Request 실행
	client := &http.Client{
		Timeout: time.Second * 3600, //Otherwirse, it can cause crash without this line. Must Must.
		// Timeout: time.Second * 20, //Otherwirse, it can cause crash without this line. Must Must.
	} // Normal is 10 but extend 20 on 1 Dec 2018

	// fmt.Println(reflect.TypeOf(respo))
	resp, err := client.Do(req)
	if err != nil {
		return nil, []byte("804"), MyErr("ERTYUIJBVFBHK-client.Do "+apiurl, err, false)
	}
	defer resp.Body.Close()

	byteRtn, _ := ioutil.ReadAll(resp.Body)
	return byteRtn, []byte(strconv.Itoa(resp.StatusCode)), nil

}

func GetHttpResponseOLd(method string, apiurl string, jsBytes []byte) ([]byte, []byte, error) {
	// func GetHttpResponseOld(method string, apiurl string, jsBytes []byte) ([]byte, []byte, error) {
	form := url.Values{}
	// form.Add("postvalues", string(kkk))
	// Values.Encode() encodes the values into "URL encoded" form sorted by key.
	// eForm := v.Encode()
	// fmt.Printf("v.Encode(): %v\n", s)
	reader := strings.NewReader(form.Encode()) // This causes 411 error

	// req, err := http.NewRequest("GET", apiurl, reader)
	req, err := http.NewRequest(method, apiurl, reader)
	if err != nil {
		return nil, []byte("909"), MyErr("WERZDSVADFZ-http.NewRequest", err, true)
	}

	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("Accept", "application/json")
	req.Header.Add("Endpoint-Agent", "abango-rest-api-v1.0")
	req.Header.Add("Accept-Language", "en-US")
	req.Header.Add("User-Agent", runtime.GOOS+"-"+runtime.Version()) // for checking OS Type in Server

	req.Body = ioutil.NopCloser(bytes.NewReader(jsBytes))

	// Client객체에서 Request 실행
	client := &http.Client{
		Timeout: time.Second * 3600, //Otherwirse, it can cause crash without this line. Must Must.
		// Timeout: time.Second * 20, //Otherwirse, it can cause crash without this line. Must Must.
	} // Normal is 10 but extend 20 on 1 Dec 2018

	// fmt.Println(reflect.TypeOf(respo))
	resp, err := client.Do(req)
	if err != nil {
		return nil, []byte("909"), MyErr("REWTAVDEQWFAF-client.Do "+apiurl, err, true)
	}
	defer resp.Body.Close()

	byteRtn, _ := ioutil.ReadAll(resp.Body)
	return byteRtn, []byte(strconv.Itoa(resp.StatusCode)), nil

}