package util
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import (
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"archive/zip"
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"basic.com/valib/logger.git"
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"bytes"
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"crypto/md5"
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"crypto/tls"
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"encoding/hex"
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"encoding/json"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"time"
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"webserver/extend/code"
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"crypto/rand"
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/pierrec/lz4"
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"reflect"
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"strings"
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)
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// iterater field of struct to lowcast.
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// return type: string slice.
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func FiledbyStuct(stuct interface{}) []string {
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var strtmp []string
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t := reflect.TypeOf(stuct)
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for i := 0; i < t.NumField(); i++ {
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strtmp = append(strtmp, strings.ToLower(string(t.Field(i).Name)))
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}
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return strtmp
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}
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//
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// ResponseFormat 返回数据格式化
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func ResponseFormat(c *gin.Context, respStatus *code.Code, data interface{}) {
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if respStatus == nil {
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respStatus = code.RequestParamError
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}
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c.JSON(respStatus.Status, gin.H{
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"code": respStatus.Status,
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"success": respStatus.Success,
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"msg": respStatus.Message,
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"data": data,
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})
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return
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}
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func PseudoUuid() (uuid string) {
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b := make([]byte, 16)
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rand.Read(b)
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uuid = fmt.Sprintf("%X-%X-%X-%X-%X", b[0:4], b[4:6], b[6:8], b[8:10], b[10:])
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return
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}
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//struct转map
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func Struct2Map(obj interface{}) map[string]interface{} {
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resultMap := make(map[string]interface{}, 0)
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bytesData, err := json.Marshal(obj)
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if err != nil {
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return resultMap
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}
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json.Unmarshal(bytesData, &resultMap)
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return resultMap
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//
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//t := reflect.TypeOf(obj)
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//v := reflect.ValueOf(obj)
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//
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//var data = make(map[string]interface{})
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//for i := 0; i < t.NumField(); i++ {
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// data[t.Field(i).Name] = v.Field(i).Interface()
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//}
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//return data
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}
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func ReadImgData(url string) ([]byte, error) {
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resp, err := http.Get(url)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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pix, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return pix, nil
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}
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func StringIpToInt(ipstring string) int {
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ipSegs := strings.Split(ipstring, ".")
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var ipInt int = 0
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var pos uint = 24
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for _, ipSeg := range ipSegs {
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tempInt, _ := strconv.Atoi(ipSeg)
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tempInt = tempInt << pos
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ipInt = ipInt | tempInt
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pos -= 8
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}
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return ipInt
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}
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func IpIntToString(ipInt int) string {
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ipSegs := make([]string, 4)
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var len int = len(ipSegs)
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buffer := bytes.NewBufferString("")
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for i := 0; i < len; i++ {
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tempInt := ipInt & 0xFF
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ipSegs[len-i-1] = strconv.Itoa(tempInt)
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ipInt = ipInt >> 8
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}
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for i := 0; i < len; i++ {
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buffer.WriteString(ipSegs[i])
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if i < len-1 {
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buffer.WriteString(".")
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}
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}
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return buffer.String()
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}
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func ParseScore(compareScore float32) float32 {
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if compareScore < 1 {
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compareScore = compareScore * 100
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}
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f, _ := strconv.ParseFloat(fmt.Sprintf("%2.2f", compareScore), 32)
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return float32(f)
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}
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func ParseScore64(compareScore float64) float64 {
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if compareScore < 1 {
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compareScore = compareScore * 100
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}
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f, _ := strconv.ParseFloat(fmt.Sprintf("%2.2f", compareScore), 64)
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return f
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}
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// UnCompress uncompress
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func UnCompress(in []byte) ([]byte, error) {
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out := make([]byte, 10*len(in))
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n, err := lz4.UncompressBlock(in, out)
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if err != nil {
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fmt.Println(err)
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return nil, err
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}
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out = out[:n] // uncompressed data
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return out, nil
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}
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// Compress compress
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func Compress(in []byte) ([]byte, error) {
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out := make([]byte, len(in))
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ht := make([]int, 64<<10) // buffer for the compression table
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n, err := lz4.CompressBlock(in, out, ht)
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if err != nil {
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fmt.Println(err)
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return nil, err
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}
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if n >= len(in) {
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fmt.Println("image is not compressible")
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}
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out = out[:n] // compressed data
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return out, nil
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}
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// 判断所给路径文件/文件夹是否存在
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func Exists(path string) bool {
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if path == "" {
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return false
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}
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_, err := os.Stat(path) //os.Stat获取文件信息
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if err != nil {
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if os.IsExist(err) {
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return true
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}
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return false
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}
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return true
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}
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func CreateDirectory(path string) bool {
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if path == "" {
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return false
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}
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if Exists(path) {
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return true
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}
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err := os.MkdirAll(path,os.ModePerm)
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if err !=nil {
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return false
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}
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return true
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}
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//日期转字符串
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func FormatDate(date time.Time, layout string) string {
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layout = strings.Replace(layout, "yyyy", "2006", 1)
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layout = strings.Replace(layout, "yy", "06", 1)
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layout = strings.Replace(layout, "MM", "01", 1)
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layout = strings.Replace(layout, "dd", "02", 1)
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layout = strings.Replace(layout, "HH", "15", 1)
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layout = strings.Replace(layout, "mm", "04", 1)
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layout = strings.Replace(layout, "ss", "05", 1)
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layout = strings.Replace(layout, "SSS", "000", -1)
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return date.Format(layout)
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}
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func ZipCheck(zipPath string) bool {
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f, err := os.Open(zipPath)
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if err != nil {
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return false
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}
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defer f.Close()
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buf := make([]byte, 4)
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if n, err := f.Read(buf); err != nil || n < 4 {
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return false
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}
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return bytes.Equal(buf, []byte("PK\x03\x04"))
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}
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func UnZip(archive, target string) error {
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reader, err := zip.OpenReader(archive)
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if err != nil {
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return err
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}
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if err := os.MkdirAll(target, 0755); err != nil {
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return err
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}
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for _, file := range reader.File {
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path := filepath.Join(target, file.Name)
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if file.FileInfo().IsDir() {
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os.MkdirAll(path, file.Mode())
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continue
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}
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fileReader, err := file.Open()
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if err != nil {
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return err
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}
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defer fileReader.Close()
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targetFile, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
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if err != nil {
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return err
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}
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defer targetFile.Close()
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if _, err := io.Copy(targetFile, fileReader); err != nil {
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return err
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}
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}
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return nil
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}
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func FormatNum(oNum int,n int) string {
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m := 0
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for {
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oNum = oNum / 10
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m++
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if oNum == 0 {
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break
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}
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}
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fmtStr := "%0"+strconv.Itoa(m)+"d"
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return fmt.Sprintf(fmtStr, n)
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}
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func FileMd5(path string) (string,error){
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file, err := os.Open(path)
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if err !=nil {
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return "",err
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}
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defer file.Close()
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_md5 := md5.New()
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if _,err := io.Copy(_md5, file);err != nil {
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return "",err
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}
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return hex.EncodeToString(_md5.Sum(nil)),nil
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}
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func DownLoad(url string)([]byte,error){
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connectTimeout := 5 * time.Second
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readWriteTimeout := 10000 * time.Millisecond
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c := &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
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Dial: TimeoutDialer(connectTimeout, readWriteTimeout),
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},
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}
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req, err := http.NewRequest("GET",url,nil)
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if err != nil {
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return nil,err
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}
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resp,err := c.Do(req)
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body, err1 := ioutil.ReadAll(resp.Body)
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if err1 != nil {
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resp.Body.Close()
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return nil,err
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}else {
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logger.Debug("Download success")
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}
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resp.Body.Close()
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return body,nil
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}
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func TimeoutDialer(cTimeout time.Duration, rwTimeout time.Duration) func(net, addr string) (c net.Conn, err error) {
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return func(netw, addr string) (net.Conn, error) {
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conn, err := net.DialTimeout(netw, addr, cTimeout)
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if err != nil {
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return nil, err
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}
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conn.SetDeadline(time.Now().Add(rwTimeout))
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return conn, nil
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}
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}
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