From 0222e79afe45d9fc55aed9a7e62ca239c228ab73 Mon Sep 17 00:00:00 2001
From: 554325746@qq.com <554325746@qq.com>
Date: 星期一, 23 十二月 2019 10:24:12 +0800
Subject: [PATCH] add sys comeback sh

---
 extend/util/util.go |  269 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 265 insertions(+), 4 deletions(-)

diff --git a/extend/util/util.go b/extend/util/util.go
index b9af7da..89fc165 100644
--- a/extend/util/util.go
+++ b/extend/util/util.go
@@ -1,10 +1,26 @@
 package util
 
 import (
+	"archive/zip"
+	"bytes"
+	"crypto/md5"
+	"encoding/hex"
 	"encoding/json"
+	"image"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+	"time"
+	"webserver/extend/code"
+
+	"basic.com/pubsub/protomsg.git"
 	"github.com/gin-gonic/gin"
 	"github.com/golang/glog"
-	"webserver/extend/code"
+	"github.com/pierrec/lz4"
+	"gocv.io/x/gocv"
 
 	"crypto/rand"
 	"fmt"
@@ -49,14 +65,14 @@
 
 //struct杞琺ap
 func Struct2Map(obj interface{}) map[string]interface{} {
-	resultMap :=make(map[string]interface{},0)
+	resultMap := make(map[string]interface{}, 0)
 	bytesData, err := json.Marshal(obj)
-	if err !=nil {
+	if err != nil {
 		return resultMap
 	}
 	json.Unmarshal(bytesData, &resultMap)
 	return resultMap
-	
+
 	//
 	//t := reflect.TypeOf(obj)
 	//v := reflect.ValueOf(obj)
@@ -66,4 +82,249 @@
 	//	data[t.Field(i).Name] = v.Field(i).Interface()
 	//}
 	//return data
+}
+
+func ReadImgData(url string) ([]byte, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	pix, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	return pix, nil
+}
+
+// 鎸夊昂瀵稿幓鍒囧浘
+func SubImg(i protomsg.Image, x0, y0, x1, y1 int) []byte {
+	img, _ := gocv.NewMatFromBytes(int(i.Height), int(i.Width), gocv.MatTypeCV8UC3, i.Data)
+	rect := image.Rect(EnlargeSize(x0, y0, x1, y1, i))
+	region := img.Region(rect)
+	bytes, _ := gocv.IMEncode(".jpg", region)
+	return bytes
+}
+
+// 闀垮鍙樹负涓�姣斾竴锛屾瘡杈瑰悇鎵╃櫨鍒嗕箣20
+func EnlargeSize(x0, y0, x1, y1 int, i protomsg.Image) (x0_new, y0_new, x1_new, y1_new int) {
+	// 鍏堟妸闀垮鍙樹负涓�姣斾竴
+	chazhi := (y1 - y0) - (x1 - x0)
+	x0 = x0 - chazhi/2
+	if x0 < 0 {
+		x0 = 0
+	}
+	x1 = x1 + chazhi/2
+	if x1 > int(i.Width) {
+		x1 = int(i.Width)
+	}
+
+	// 鍐嶆妸姣忚竟鍚勬墿澶х櫨鍒嗕箣20
+	enlarge := float32(0.2)
+	x0_new = int((1+enlarge)*float32(x0) - enlarge*float32(x1))
+	if x0_new < 0 {
+		x0_new = 0
+	}
+	x1_new = int((1+enlarge)*float32(x1) - enlarge*float32(x0))
+	if x1_new > int(i.Width) {
+		x1_new = int(i.Width)
+	}
+	y0_new = int((1+enlarge)*float32(y0) - enlarge*float32(y1))
+	if y0_new < 0 {
+		y0_new = 0
+	}
+	y1_new = int((1+enlarge)*float32(y1) - enlarge*float32(y0))
+	if y1_new > int(i.Height) {
+		y1_new = int(i.Height)
+	}
+	return
+}
+
+func StringIpToInt(ipstring string) int {
+	ipSegs := strings.Split(ipstring, ".")
+	var ipInt int = 0
+	var pos uint = 24
+	for _, ipSeg := range ipSegs {
+		tempInt, _ := strconv.Atoi(ipSeg)
+		tempInt = tempInt << pos
+		ipInt = ipInt | tempInt
+		pos -= 8
+	}
+	return ipInt
+}
+
+func IpIntToString(ipInt int) string {
+	ipSegs := make([]string, 4)
+	var len int = len(ipSegs)
+	buffer := bytes.NewBufferString("")
+	for i := 0; i < len; i++ {
+		tempInt := ipInt & 0xFF
+		ipSegs[len-i-1] = strconv.Itoa(tempInt)
+
+		ipInt = ipInt >> 8
+	}
+	for i := 0; i < len; i++ {
+		buffer.WriteString(ipSegs[i])
+		if i < len-1 {
+			buffer.WriteString(".")
+		}
+	}
+	return buffer.String()
+}
+
+func ParseScore(compareScore float32) float32 {
+	if compareScore < 1 {
+		compareScore = compareScore * 100
+	}
+	f, _ := strconv.ParseFloat(fmt.Sprintf("%2.2f", compareScore), 32)
+	return float32(f)
+}
+
+func ParseScore64(compareScore float64) float64 {
+	if compareScore < 1 {
+		compareScore = compareScore * 100
+	}
+	f, _ := strconv.ParseFloat(fmt.Sprintf("%2.2f", compareScore), 64)
+	return f
+}
+
+// UnCompress uncompress
+func UnCompress(in []byte) ([]byte, error) {
+	out := make([]byte, 10*len(in))
+	n, err := lz4.UncompressBlock(in, out)
+	if err != nil {
+		fmt.Println(err)
+		return nil, err
+	}
+	out = out[:n] // uncompressed data
+	return out, nil
+}
+
+// Compress compress
+func Compress(in []byte) ([]byte, error) {
+	out := make([]byte, len(in))
+	ht := make([]int, 64<<10) // buffer for the compression table
+	n, err := lz4.CompressBlock(in, out, ht)
+	if err != nil {
+		fmt.Println(err)
+		return nil, err
+	}
+	if n >= len(in) {
+		fmt.Println("image is not compressible")
+	}
+	out = out[:n] // compressed data
+	return out, nil
+}
+
+// 鍒ゆ柇鎵�缁欒矾寰勬枃浠�/鏂囦欢澶规槸鍚﹀瓨鍦�
+func Exists(path string) bool {
+	if path == "" {
+		return false
+	}
+	_, err := os.Stat(path)    //os.Stat鑾峰彇鏂囦欢淇℃伅
+	if err != nil {
+		if os.IsExist(err) {
+			return true
+		}
+		return false
+	}
+	return true
+}
+func CreateDirectory(path string) bool {
+	if path == "" {
+		return false
+	}
+	if Exists(path) {
+		return true
+	}
+	err := os.MkdirAll(path,os.ModePerm)
+	if err !=nil {
+		return false
+	}
+	return true
+}
+
+//鏃ユ湡杞瓧绗︿覆
+func FormatDate(date time.Time, layout string) string {
+	layout = strings.Replace(layout, "yyyy", "2006", 1)
+	layout = strings.Replace(layout, "yy", "06", 1)
+	layout = strings.Replace(layout, "MM", "01", 1)
+	layout = strings.Replace(layout, "dd", "02", 1)
+	layout = strings.Replace(layout, "HH", "15", 1)
+	layout = strings.Replace(layout, "mm", "04", 1)
+	layout = strings.Replace(layout, "ss", "05", 1)
+	layout = strings.Replace(layout, "SSS", "000", -1)
+	return date.Format(layout)
+}
+func ZipCheck(zipPath string) bool {
+	f, err := os.Open(zipPath)
+	if err != nil {
+		return false
+	}
+	defer f.Close()
+	buf := make([]byte, 4)
+	if n, err := f.Read(buf); err != nil || n < 4 {
+		return false
+	}
+	return bytes.Equal(buf, []byte("PK\x03\x04"))
+}
+func UnZip(archive, target string) error {
+	reader, err := zip.OpenReader(archive)
+	if err != nil {
+		return err
+	}
+	if err := os.MkdirAll(target, 0755); err != nil {
+		return err
+	}
+	for _, file := range reader.File {
+		path := filepath.Join(target, file.Name)
+		if file.FileInfo().IsDir() {
+			os.MkdirAll(path, file.Mode())
+			continue
+		}
+		fileReader, err := file.Open()
+		if err != nil {
+			return err
+		}
+		defer fileReader.Close()
+		targetFile, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
+		if err != nil {
+			return err
+		}
+		defer targetFile.Close()
+		if _, err := io.Copy(targetFile, fileReader); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func FormatNum(oNum int,n int) string {
+	m := 0
+	for {
+		oNum = oNum / 10
+		m++
+		if oNum == 0 {
+			break
+		}
+	}
+	fmtStr := "%0"+strconv.Itoa(m)+"d"
+	return fmt.Sprintf(fmtStr, n)
+}
+
+func FileMd5(path string) (string,error){
+	file, err := os.Open(path)
+	if err !=nil {
+		return "",err
+	}
+
+	defer file.Close()
+
+	_md5 := md5.New()
+	if _,err := io.Copy(_md5, file);err != nil {
+		return "",err
+	}
+
+	return hex.EncodeToString(_md5.Sum(nil)),nil
 }
\ No newline at end of file

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