721 lines
19 KiB
Go
721 lines
19 KiB
Go
package jxutils
|
||
|
||
import (
|
||
"crypto/aes"
|
||
"crypto/md5"
|
||
"encoding/base64"
|
||
"fmt"
|
||
"io/ioutil"
|
||
"math"
|
||
"math/rand"
|
||
"regexp"
|
||
"strings"
|
||
"time"
|
||
|
||
"git.rosy.net.cn/baseapi/utils"
|
||
"git.rosy.net.cn/baseapi/utils/routinepool"
|
||
"git.rosy.net.cn/jx-callback/business/model"
|
||
)
|
||
|
||
var (
|
||
routinePool *routinepool.Pool
|
||
skuNamePat *regexp.Regexp
|
||
emailPat *regexp.Regexp
|
||
orderNoBeginTimestamp int64
|
||
|
||
resourceTypeMap = map[int][]string{
|
||
model.VendorIDQiNiuCloud: []string{
|
||
"image.jxc4.com",
|
||
},
|
||
model.VendorIDJD: []string{
|
||
"img30.360buyimg.com",
|
||
},
|
||
model.VendorIDEBAI: []string{
|
||
"image-star.elemecdn.com",
|
||
},
|
||
}
|
||
|
||
letterBytes = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||
|
||
flowUnitMap = map[string]string{
|
||
"KB": "KB",
|
||
"MB": "MB",
|
||
"GB": "GB",
|
||
}
|
||
)
|
||
|
||
const fileExt = ".xlsx"
|
||
|
||
func init() {
|
||
rand.Seed(time.Now().Unix())
|
||
routinePool = routinepool.New(1000, 1000)
|
||
|
||
// Go regex does not support lookarounds.
|
||
// https://stackoverflow.com/questions/38933898/error-parsing-regexp-invalid-or-unsupported-perl-syntax
|
||
skuNamePat = regexp.MustCompile(`([\(（\[【][^\(（\[【\)）\]】]*[\)）\]】])?(.*?)([(（].*[)）])?\s*约?([1-9][\d\.]*)(g|G|kg|kG|Kg|KG|l|L|ml|mL|Ml|ML|克)\s*([(（].*[)）])?\s*(?:\/|／|)\s*([^\s（）()]{0,2})(\s.*)?$\s*([（(].*[）)])?$`)
|
||
emailPat = regexp.MustCompile(`[A-Za-z0-9_\-.]+@(?:[A-Za-z0-9_\-]+\.)+[A-Za-z]+`)
|
||
orderNoBeginTimestamp = utils.Str2Time("2010-01-01 00:00:00").Unix()
|
||
}
|
||
|
||
func RandStringBytes(n int) string {
|
||
b := make([]byte, n)
|
||
for i := range b {
|
||
b[i] = letterBytes[rand.Intn(len(letterBytes))]
|
||
}
|
||
return string(b)
|
||
}
|
||
|
||
func GenRand6() (num int) {
|
||
return utils.Str2Int(fmt.Sprintf("%06v", rand.New(rand.NewSource(time.Now().UnixNano())).Int31n(1000000)))
|
||
}
|
||
|
||
func GenOrderNo() (orderNo int64) {
|
||
var prefix = utils.Str2Int64(time.Now().Format("20060102"))
|
||
const randPartNum = 1000
|
||
orderNo = time.Now().Unix() - orderNoBeginTimestamp
|
||
orderNo = orderNo * randPartNum
|
||
md5Bytes := md5.Sum([]byte(utils.GetUUID()))
|
||
randPart := 0
|
||
for k, v := range md5Bytes {
|
||
randPart += int(v) << ((k % 3) * 8)
|
||
}
|
||
orderNo += int64(randPart % randPartNum)
|
||
orderNo += int64(math.Pow10(int(math.Log10(float64(orderNo)))+1)) * prefix
|
||
return orderNo
|
||
}
|
||
|
||
// distance单位为米
|
||
func ConvertDistanceToLogLat(lng, lat, distance, angle float64) (newLng, newLat float64) {
|
||
oneDu := 111319.55 // 单位为米
|
||
newLng = lng + (distance*math.Sin(angle*math.Pi/180))/(oneDu*math.Cos(lat*math.Pi/180)) //将距离转换成经度的计算公式
|
||
newLat = lat + (distance*math.Cos(angle*math.Pi/180))/oneDu //将距离转换成纬度的计算公式
|
||
return newLng, newLat
|
||
}
|
||
|
||
// 返回结果单元为公里
|
||
func EarthDistance(lng1, lat1, lng2, lat2 float64) float64 {
|
||
radius := 6378.137
|
||
rad := math.Pi / 180.0
|
||
lat1 = lat1 * rad
|
||
lng1 = lng1 * rad
|
||
lat2 = lat2 * rad
|
||
lng2 = lng2 * rad
|
||
theta := lng2 - lng1
|
||
dist := math.Acos(math.Sin(lat1)*math.Sin(lat2) + math.Cos(lat1)*math.Cos(lat2)*math.Cos(theta))
|
||
if dist < 0 {
|
||
dist = 0
|
||
}
|
||
return dist * radius
|
||
}
|
||
|
||
func StandardCoordinate2Int(value float64) int {
|
||
return int(math.Round(value * 1000000))
|
||
}
|
||
|
||
func IntCoordinate2Standard(value int) float64 {
|
||
return float64(value) / 1000000
|
||
}
|
||
|
||
func IntPrice2Standard(value int64) float64 {
|
||
return float64(value) / 100
|
||
}
|
||
|
||
func StandardPrice2Int(value float64) int64 {
|
||
return int64(math.Round(value * 100))
|
||
}
|
||
|
||
func IntPrice2StandardString(value int64) string {
|
||
return fmt.Sprintf("%.2f", IntPrice2Standard(value))
|
||
}
|
||
|
||
func IntPrice2StandardCurrencyString(value int64) string {
|
||
return fmt.Sprintf("￥%.2f", IntPrice2Standard(value))
|
||
}
|
||
|
||
func CallMsgHandler(handler func(), primaryID string) {
|
||
routinePool.CallFun(func() {
|
||
handler()
|
||
}, primaryID)
|
||
}
|
||
|
||
func CallMsgHandlerAsync(handler func(), primaryID string) {
|
||
routinePool.CallFunAsync(func() {
|
||
handler()
|
||
}, primaryID)
|
||
}
|
||
|
||
func GetNameAndUnitFromSkuName(fullName string) (name string, unit string) {
|
||
unit = "份"
|
||
index := strings.Index(fullName, "/")
|
||
if index >= 0 {
|
||
name = fullName[:index]
|
||
unitTmp := []rune(fullName[index+1:])
|
||
if len(unitTmp) >= 1 {
|
||
unit = string(unitTmp[:1])
|
||
}
|
||
} else {
|
||
name = fullName
|
||
}
|
||
return name, unit
|
||
}
|
||
|
||
func MapValue2Scope(value, fromMin, fromMax, toMin, toMax int64) int64 {
|
||
if value < fromMin {
|
||
value = fromMin
|
||
}
|
||
if value > fromMax {
|
||
value = fromMax
|
||
}
|
||
return int64(math.Round(float64(value-fromMin)/float64(fromMax-fromMin)*float64(toMax-toMin) + float64(toMin)))
|
||
}
|
||
|
||
func Errs2Str(sep string, errs ...error) (retVal string) {
|
||
if sep == "" {
|
||
sep = "\n"
|
||
}
|
||
for _, err := range errs {
|
||
if err != nil {
|
||
retVal += err.Error() + sep
|
||
}
|
||
}
|
||
return retVal
|
||
}
|
||
|
||
func IntWeight2Float(weight int) float32 {
|
||
return float32(weight) / 1000.0
|
||
}
|
||
|
||
func FloatWeight2Int(weight float32) int {
|
||
return int(math.Round(float64(weight * 1000)))
|
||
}
|
||
|
||
func ComposeSkuNameOriginal(prefix, name, comment, unit string, spec_quality float32, spec_unit string, maxLen int) (skuName string) {
|
||
strBuilder := &strings.Builder{}
|
||
if prefix != "" {
|
||
strBuilder.WriteString("[")
|
||
strBuilder.WriteString(prefix)
|
||
strBuilder.WriteString("]")
|
||
}
|
||
skuName += name
|
||
strBuilder.WriteString(name)
|
||
if unit == "份" {
|
||
strBuilder.WriteString("约")
|
||
}
|
||
if unit != "" {
|
||
strBuilder.WriteString(ComposeSkuSpec(spec_quality, spec_unit))
|
||
strBuilder.WriteString("/")
|
||
strBuilder.WriteString(unit)
|
||
}
|
||
if comment != "" {
|
||
strBuilder.WriteString("(")
|
||
strBuilder.WriteString(comment)
|
||
strBuilder.WriteString(")")
|
||
}
|
||
skuName = strBuilder.String()
|
||
if maxLen > 0 {
|
||
skuName = utils.LimitUTF8StringLen(skuName, maxLen)
|
||
}
|
||
return skuName
|
||
}
|
||
|
||
func ComposeSkuNameForJds(prefix, name, comment, unit string, spec_quality float32, spec_unit string, maxLen int) (skuName string) {
|
||
strBuilder := &strings.Builder{}
|
||
if prefix != "" {
|
||
strBuilder.WriteString("[")
|
||
strBuilder.WriteString(prefix)
|
||
strBuilder.WriteString("]")
|
||
}
|
||
skuName += name
|
||
strBuilder.WriteString(name)
|
||
if comment != "" {
|
||
strBuilder.WriteString(" ")
|
||
strBuilder.WriteString(comment)
|
||
}
|
||
if unit == "份" {
|
||
strBuilder.WriteString("约")
|
||
}
|
||
if unit != "" {
|
||
strBuilder.WriteString(ComposeSkuSpec(spec_quality, spec_unit))
|
||
}
|
||
skuName = strBuilder.String()
|
||
if maxLen > 0 {
|
||
skuName = utils.LimitUTF8StringLen(skuName, maxLen)
|
||
}
|
||
return skuName
|
||
}
|
||
|
||
func ComposeSkuName(prefix, name, comment, unit string, spec_quality float32, spec_unit string, maxLen int, exPrefix string, exPrefixBegin, exPrefixEnd *time.Time) (skuName string) {
|
||
if exPrefix != "" && exPrefixBegin != nil && exPrefixEnd != nil {
|
||
if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixBegin) >= 0 && utils.Time2Date(time.Now()).Sub(*exPrefixEnd) <= 0 {
|
||
skuName = exPrefix
|
||
}
|
||
}
|
||
skuName += ComposeSkuNameOriginal(prefix, name, comment, unit, spec_quality, spec_unit, maxLen)
|
||
return skuName
|
||
}
|
||
|
||
func ComposeSkuNameSync(prefix, name, comment, unit string, spec_quality float32, spec_unit string, maxLen int, exPrefix string, exPrefixBegin, exPrefixEnd *time.Time) (skuName string) {
|
||
if exPrefix != "" && exPrefixBegin != nil && exPrefixEnd != nil {
|
||
if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixBegin) >= 0 && utils.Time2Date(time.Now()).Sub(*exPrefixEnd) <= 0 {
|
||
skuName = exPrefix
|
||
}
|
||
if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixEnd) > 0 {
|
||
skuName = ""
|
||
}
|
||
}
|
||
skuName += ComposeSkuNameOriginal(prefix, name, comment, unit, spec_quality, spec_unit, maxLen)
|
||
return skuName
|
||
}
|
||
|
||
func ComposeSkuNameSync2(prefix, name, comment, unit string, spec_quality float32, spec_unit string, maxLen int, exPrefix string, exPrefixBegin, exPrefixEnd *time.Time) (skuName string) {
|
||
if exPrefix != "" && exPrefixBegin != nil && exPrefixEnd != nil {
|
||
if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixBegin) >= 0 && utils.Time2Date(time.Now()).Sub(*exPrefixEnd) <= 0 {
|
||
skuName = exPrefix
|
||
}
|
||
if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixEnd) > 0 {
|
||
skuName = ""
|
||
}
|
||
}
|
||
skuName += ComposeSkuNameForJds(prefix, name, comment, unit, spec_quality, spec_unit, maxLen)
|
||
return skuName
|
||
}
|
||
|
||
func ComposeSpuName(prefix, name string, maxLen int) (spuName string) {
|
||
if prefix != "" {
|
||
spuName = "[" + prefix + "]"
|
||
}
|
||
spuName += name
|
||
return utils.LimitUTF8StringLen(spuName, maxLen)
|
||
}
|
||
|
||
func ComposeSkuSpec(spec_quality float32, spec_unit string) (spec string) {
|
||
if spec_unit != "" {
|
||
if math.Round(float64(spec_quality)) == float64(spec_quality) || (spec_unit != "L" && spec_unit != "kg") {
|
||
spec = fmt.Sprintf("%d", int(spec_quality))
|
||
} else {
|
||
spec = strings.TrimRight(fmt.Sprintf("%.2f", spec_quality), "0.")
|
||
}
|
||
spec += spec_unit
|
||
}
|
||
return spec
|
||
}
|
||
|
||
// 1：商品特殊前缀
|
||
// 2：商品名字
|
||
// 3：商品说明1（可缺失）
|
||
// 4：质量数字
|
||
// 5：质量单位
|
||
// 6：商品说明2（可缺失）
|
||
// 7：商品单位
|
||
// 8：商品说明3（可缺失）
|
||
func SplitSkuName(skuName string) (prefix, name, comment, specUnit, unit string, specQuality float32) {
|
||
searchResult := skuNamePat.FindStringSubmatch(skuName)
|
||
if searchResult != nil {
|
||
if searchResult[3] != "" {
|
||
comment = searchResult[3]
|
||
} else if searchResult[6] != "" {
|
||
comment = searchResult[6]
|
||
} else if searchResult[8] != "" {
|
||
comment = searchResult[8]
|
||
} else if searchResult[9] != "" {
|
||
comment = searchResult[9]
|
||
}
|
||
comment = TrimDecorationChar(comment)
|
||
name = TrimDecorationChar(searchResult[2])
|
||
// if comment != "" {
|
||
// // if utf8.RuneCountInString(comment) <= 5 {
|
||
// // name += "-" + comment
|
||
// // comment = ""
|
||
// // }
|
||
// }
|
||
specUnit = strings.ToLower(strings.Replace(searchResult[5], "克", "g", -1))
|
||
if specUnit == "l" {
|
||
specUnit = "L"
|
||
}
|
||
if searchResult[7] == "" {
|
||
unit = "份"
|
||
} else {
|
||
unit = searchResult[7]
|
||
}
|
||
specQuality = float32(utils.Str2Float64(searchResult[4]))
|
||
prefix = TrimDecorationChar(searchResult[1])
|
||
}
|
||
return prefix, name, comment, specUnit, unit, specQuality
|
||
}
|
||
|
||
// https://my.oschina.net/hyller/blog/700414
|
||
func CalUpcCheckSum(upc12 int64) (checkSum int) {
|
||
var sum [2]int
|
||
for i := 0; i < 12; i++ {
|
||
base := int64(math.Pow10(i))
|
||
sum[i%2] += int((upc12 / base) % 10)
|
||
}
|
||
sum[0] *= 3
|
||
return (10 - (sum[0]+sum[1])%10) % 10
|
||
}
|
||
|
||
func IsUpcValid(upc string) bool {
|
||
if len(upc) != 13 {
|
||
return false
|
||
}
|
||
upcInt := utils.Str2Int64WithDefault(upc, 0)
|
||
checkSum := CalUpcCheckSum(upcInt / 10)
|
||
return int(utils.Str2Int64(upc[12:])) == checkSum
|
||
}
|
||
|
||
func GenFakeUPC(skuID int) string {
|
||
id := int64(skuID) + 666600000000
|
||
return fmt.Sprintf("%012d%d", id, CalUpcCheckSum(id))
|
||
}
|
||
|
||
func MakeValidationMapFromSlice(validValues []string, flag int) map[string]int {
|
||
retVal := make(map[string]int)
|
||
for _, v := range validValues {
|
||
retVal[v] = flag
|
||
}
|
||
return retVal
|
||
}
|
||
|
||
func ComposeQiniuResURL(key string) string {
|
||
return "https://image.jxc4.com/" + key
|
||
}
|
||
|
||
func IsLegalMobileNumber(num int64) bool {
|
||
return num >= 13000000000 && num <= 19999999999
|
||
}
|
||
|
||
func TrimDecorationChar(value string) string {
|
||
return strings.Trim(value, " \t\n[]()【】（）-_——")
|
||
}
|
||
|
||
func BatchStr2Time(strTime ...string) (timeList []time.Time, err error) {
|
||
timeList = make([]time.Time, len(strTime))
|
||
for k, v := range strTime {
|
||
if v == "" {
|
||
timeList[k] = utils.DefaultTimeValue
|
||
} else {
|
||
if timeList[k], err = utils.TryStr2Time(v); err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
}
|
||
return timeList, nil
|
||
}
|
||
|
||
// strAndObjAddPairs必须按字符串1,转换地址1，字符串2，转换地址2这样的格式传递
|
||
func Strings2Objs(strAndObjAddPairs ...interface{}) (err error) {
|
||
str := ""
|
||
for k, v := range strAndObjAddPairs {
|
||
if k%2 == 0 {
|
||
str, _ = v.(string)
|
||
} else if str != "" {
|
||
if err = utils.UnmarshalUseNumber([]byte(str), v); err != nil {
|
||
return err
|
||
}
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func TaskResult2Hint(resultList []interface{}) (hint string) {
|
||
strList := make([]string, len(resultList))
|
||
for k, v := range resultList {
|
||
strList[k] = fmt.Sprint(v)
|
||
}
|
||
hint = strings.Join(strList, ",")
|
||
return hint
|
||
}
|
||
|
||
// 这个函数用于将两个整数合并为一单一int64，不要用于持久化的场景
|
||
func Combine2Int(int1, int2 int) (outInt int64) {
|
||
return int64(int1)*100000 + int64(int2)
|
||
}
|
||
|
||
func GetLastTimeFromList(now time.Time, timeList []string) (snapshotAt time.Time) {
|
||
dateStr := utils.Time2DateStr(now)
|
||
selectTime := utils.Str2Time(utils.Time2DateStr(now.Add(-24*time.Hour)) + " " + timeList[len(timeList)-1])
|
||
for _, v := range timeList {
|
||
tmpTime := utils.Str2Time(dateStr + " " + v)
|
||
if tmpTime.Sub(now) > 0 {
|
||
break
|
||
}
|
||
selectTime = tmpTime
|
||
}
|
||
return selectTime
|
||
}
|
||
|
||
func GetNextTimeFromList(now time.Time, timeList []string) (snapshotAt time.Time) {
|
||
dateStr := utils.Time2DateStr(now)
|
||
timeListLen := len(timeList)
|
||
selectTime := utils.Str2Time(utils.Time2DateStr(now.Add(24*time.Hour)) + " " + timeList[0])
|
||
for k := range timeList {
|
||
v := timeList[timeListLen-k-1]
|
||
tmpTime := utils.Str2Time(dateStr + " " + v)
|
||
if tmpTime.Sub(now) < 0 {
|
||
break
|
||
}
|
||
selectTime = tmpTime
|
||
}
|
||
return selectTime
|
||
}
|
||
|
||
func OperationTime2StrWithSecond(opTime int16) (str string) {
|
||
str = fmt.Sprintf("%02d:%02d:00", opTime/100, opTime%100)
|
||
return str
|
||
}
|
||
|
||
func OperationTime2Str(opTime int16) (str string) {
|
||
str = fmt.Sprintf("%02d:%02d", opTime/100, opTime%100)
|
||
return str
|
||
}
|
||
|
||
func OperationTime2Str2(openTime, closeTime int16) (str string) {
|
||
str = fmt.Sprintf("%s-%s", OperationTime2Str(openTime), OperationTime2Str(closeTime))
|
||
return str
|
||
}
|
||
|
||
func OperationTime2HourMinuteFormat(time time.Time) (i int16) {
|
||
return int16(time.Hour()*100 + time.Minute())
|
||
}
|
||
|
||
func WriteFile(fileName string, binData []byte) error {
|
||
err := ioutil.WriteFile(fileName, binData, 0666)
|
||
return err
|
||
}
|
||
|
||
func GuessDataResourceVendor(resourceURL string) (vendorID int) {
|
||
vendorID = -1
|
||
for tmpVendorID, urlList := range resourceTypeMap {
|
||
for _, v := range urlList {
|
||
if v != "" && strings.Index(resourceURL, "//"+v) >= 0 {
|
||
vendorID = tmpVendorID
|
||
break
|
||
}
|
||
}
|
||
if vendorID >= 0 {
|
||
break
|
||
}
|
||
}
|
||
return vendorID
|
||
}
|
||
|
||
func BatchString2Slice(strs ...string) (strList []string) {
|
||
for _, v := range strs {
|
||
if v != "" {
|
||
strList = append(strList, v)
|
||
}
|
||
}
|
||
return strList
|
||
}
|
||
|
||
func GetShortNameFromURL(strURL string) (shortName string) {
|
||
index := strings.Index(strURL, "?")
|
||
if index != -1 {
|
||
strURL = strURL[:index]
|
||
}
|
||
index = strings.LastIndex(strURL, "/")
|
||
if index != -1 {
|
||
shortName = strURL[index+1:]
|
||
}
|
||
return shortName
|
||
}
|
||
|
||
// 阶梯计算总量
|
||
// stageList是一个二维数组，第一维要求是从大到小排序的，第二维是级别及单位代价
|
||
func CalcStageValue(stageList [][]float64, totalVolume float64) (value float64) {
|
||
for _, v := range stageList {
|
||
if totalVolume > v[0] {
|
||
used := math.Ceil(totalVolume - v[0])
|
||
value += v[1] * used
|
||
totalVolume -= used
|
||
}
|
||
}
|
||
return value
|
||
}
|
||
|
||
func GetOneEmailFromStr(str string) (email string) {
|
||
if str != "" {
|
||
searchResult := emailPat.FindStringSubmatch(str)
|
||
if searchResult != nil && len(searchResult) > 0 {
|
||
email = searchResult[0]
|
||
}
|
||
}
|
||
return email
|
||
}
|
||
|
||
// 计算一个坐标点距离一个门店的距离，单位为米，如果不在有效范围内，则返回0
|
||
func Point2StoreDistance(lng, lat float64, intStoreLng, intStoreLat int, deliveryRangeType int8, deliveryRange string) (distance int) {
|
||
// storeLng := IntCoordinate2Standard(intStoreLng)
|
||
// storeLat := IntCoordinate2Standard(intStoreLat)
|
||
// if deliveryRangeType == model.DeliveryRangeTypeRadius {
|
||
// maxDistance := int(utils.Str2Int64WithDefault(deliveryRange, 0))
|
||
// distance = int(EarthDistance(lng, lat, storeLng, storeLat) * 1000)
|
||
// if distance > maxDistance {
|
||
// distance = 0
|
||
// }
|
||
// } else {
|
||
// points := CoordinateStr2Points(deliveryRange)
|
||
// if utils.IsPointInPolygon(lng, lat, points) {
|
||
// distance = int(EarthDistance(lng, lat, storeLng, storeLat) * 1000)
|
||
// }
|
||
// }
|
||
return distance
|
||
}
|
||
|
||
func TranslateSoundSize(vendorID, soundPercentage int) (soundSize string) {
|
||
if vendorID == model.VendorIDYiLianYun || vendorID == model.VendorIDFeiE {
|
||
if soundPercentage == 0 {
|
||
soundSize = "0"
|
||
}
|
||
if soundPercentage > 0 && soundPercentage <= 33 {
|
||
soundSize = "1"
|
||
}
|
||
if soundPercentage > 33 && soundPercentage <= 66 {
|
||
soundSize = "2"
|
||
}
|
||
if soundPercentage > 66 && soundPercentage <= 100 {
|
||
soundSize = "3"
|
||
}
|
||
}
|
||
return soundSize
|
||
}
|
||
|
||
//ECB,AES模式解密
|
||
//目前就京东商城订单手机号解密用
|
||
func DecryptDESECB(d, key []byte) string {
|
||
data, err := base64.StdEncoding.DecodeString(string(d))
|
||
if err != nil {
|
||
return ""
|
||
}
|
||
block, err := aes.NewCipher(key)
|
||
if err != nil {
|
||
return ""
|
||
}
|
||
bs := block.BlockSize()
|
||
if len(data)%bs != 0 {
|
||
return ""
|
||
}
|
||
out := make([]byte, len(data))
|
||
dst := out
|
||
for len(data) > 0 {
|
||
block.Decrypt(dst, data[:bs])
|
||
data = data[bs:]
|
||
dst = dst[bs:]
|
||
}
|
||
out = PKCS5UnPadding(out)
|
||
return string(out)
|
||
}
|
||
|
||
func PKCS5UnPadding(origData []byte) []byte {
|
||
length := len(origData)
|
||
unpadding := int(origData[length-1])
|
||
return origData[:(length - unpadding)]
|
||
}
|
||
|
||
func GetIssue() (issue int) {
|
||
year, month, _ := time.Now().Date()
|
||
return year*100 + int(month)
|
||
}
|
||
|
||
//根据一堆坐标求面积
|
||
//有待考证，不过暂时拿来用
|
||
func ComputeSignedArea(path []string) (s float64) {
|
||
var (
|
||
radius = 6371009
|
||
len = len(path)
|
||
total float64
|
||
prev = path[len-1]
|
||
)
|
||
if len < 3 {
|
||
return
|
||
}
|
||
prevTanLat := math.Tan(((math.Pi/2 - utils.Str2Float64(strings.Split(prev, ",")[1])/180*math.Pi) / 2))
|
||
prevLng := utils.Str2Float64(strings.Split(prev, ",")[0]) / 180 * math.Pi
|
||
for i := 0; i < len; i++ {
|
||
tanLat := math.Tan(((math.Pi/2 - utils.Str2Float64(strings.Split(path[i], ",")[1])/180*math.Pi) / 2))
|
||
lng := utils.Str2Float64(strings.Split(path[i], ",")[0]) / 180 * math.Pi
|
||
total += polarTriangleArea(tanLat, lng, prevTanLat, prevLng)
|
||
prevTanLat = tanLat
|
||
prevLng = lng
|
||
}
|
||
return math.Abs(total * (float64(radius) * float64(radius)))
|
||
}
|
||
|
||
func polarTriangleArea(tan1, lng1, tan2, lng2 float64) (s float64) {
|
||
deltaLng := lng1 - lng2
|
||
t := tan1 * tan2
|
||
return 2 * math.Atan2(t*math.Sin(deltaLng), 1+t*math.Cos(deltaLng))
|
||
}
|
||
|
||
func GenRandomString(l int) string {
|
||
str := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||
bytes := []byte(str)
|
||
result := []byte{}
|
||
r := rand.New(rand.NewSource(time.Now().UnixNano()))
|
||
for i := 0; i < l; i++ {
|
||
result = append(result, bytes[r.Intn(len(bytes))])
|
||
}
|
||
return string(result)
|
||
}
|
||
|
||
func GetDayTime() (dayTimeBegin, dayTimeEnd time.Time) {
|
||
dayTimeBegin = utils.Str2Time(utils.Time2Str(utils.Time2Date(time.Now())) + " 00:00:00")
|
||
dayTimeEnd = dayTimeBegin.AddDate(0, 0, 1)
|
||
return dayTimeBegin, dayTimeEnd
|
||
}
|
||
|
||
func GetWeekTime() (weekTimeBegin, weekTimeEnd time.Time) {
|
||
offset := int(time.Now().Weekday() - 1)
|
||
if offset == -1 {
|
||
offset = -6
|
||
}
|
||
weekTimeBegin = time.Now().AddDate(0, 0, offset)
|
||
weekTimeEnd = weekTimeBegin.AddDate(0, 0, 7)
|
||
return weekTimeBegin, weekTimeEnd
|
||
}
|
||
|
||
func BuildErr(errs []error) (err error) {
|
||
var errStr = strings.Builder{}
|
||
for _, v := range errs {
|
||
errStr.WriteString(v.Error())
|
||
}
|
||
return fmt.Errorf(errStr.String())
|
||
}
|
||
|
||
func SplitFlowAndUnit(flowStr string) (flow float64, unit string) {
|
||
for _, v := range flowUnitMap {
|
||
if strings.Contains(flowStr, v) {
|
||
return utils.Str2Float64WithDefault(flowStr[:len(flowStr)-2], 0), flowStr[len(flowStr)-2:]
|
||
}
|
||
}
|
||
return flow, unit
|
||
}
|
||
|
||
func Flow2KB(flow float64, unit string) (flowKB float64) {
|
||
if unit == "KB" {
|
||
return flow
|
||
} else if unit == "MB" {
|
||
return flow * 1024
|
||
} else if unit == "GB" {
|
||
return flow * 1024 * 1024
|
||
}
|
||
return flowKB
|
||
}
|
||
|
||
func FlowKB2Other(flowKB float64) (flow float64, unit string) {
|
||
if flowKB < 1024 {
|
||
return flowKB, "KB"
|
||
} else {
|
||
flowMB := math.Round(flowKB / float64(1024))
|
||
if flowMB < 1024 {
|
||
return flowMB, "MB"
|
||
} else {
|
||
flowGB := math.Round(flowMB / float64(1024))
|
||
if flowGB < 1024 {
|
||
return flowGB, "GB"
|
||
}
|
||
}
|
||
}
|
||
return flow, unit
|
||
}
|