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package utils
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import (
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"crypto/md5"
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"encoding/hex"
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"fmt"
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"math/rand"
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"regexp"
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"sort"
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"strings"
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"time"
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)
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func toHexDigest(str string) string {
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h := md5.New()
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h.Write([]byte(str))
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return hex.EncodeToString(h.Sum(nil))
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}
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/* contributor: https://github.com/Azure99/GenshinPlayerQuery/issues/20 @lulu666lulu */
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func GetDS(url, data string) (t, v, ds string) {
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// 5: mobile web
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const appType = "5"
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const apiSalt = "xV8v4Qu54lUKrEYFZkJhB8cuOh9Asafs"
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const appVersion = "2.11.1"
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rand.Seed(time.Now().UnixNano())
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// unix timestamp
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i := time.Now().Unix()
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// random number 100k - 200k
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r := rand.Intn(100000) + 100000
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// body
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b := data
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// query
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q := func() string {
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urlParts := strings.Split(url, "?")
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if len(urlParts) == 2 {
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querys := strings.Split(urlParts[1], "&")
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sort.Strings(querys)
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return strings.Join(querys, "&")
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}
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return ""
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}()
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c := toHexDigest(fmt.Sprintf("salt=%s&t=%d&r=%d&b=%s&q=%s", apiSalt, i, r, b, q))
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ds = fmt.Sprintf("%d,%d,%s", i, r, c)
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return appType, appVersion, ds
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}
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/*
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* t1, t2: string, HH:MM
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* t1 > t2 return 1
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* t1 = t2 return 0
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* t1 < t2 return -1
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*/
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func timeCmp(t1, t2 string) int {
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hh1, mm1, hh2, mm2 := 0, 0, 0, 0
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fmt.Sscanf(t1, "%d:%d", &hh1, &mm1)
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fmt.Sscanf(t2, "%d:%d", &hh2, &mm2)
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switch {
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case hh1 > hh2:
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return 1
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case hh2 > hh1:
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return -1
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case mm1 > mm2:
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return 1
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case mm1 < mm2:
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return -1
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default:
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return 0
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}
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}
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/*
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* 判断当前时刻是否在某个事件段内, 分钟级
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* timeRangeStr: string, HH:MM-HH:MM
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* 返回true or false， 若结果true，第二个返回值为距离结束时间段结束的时间，否则返回0
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* 如果timeRangeStr格式错误，返回false, 0
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*/
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func NowInTimeRange(timeRangeStr string) (bool, time.Duration) {
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rc := regexp.MustCompile("^((0?[0-9]|1[0-9]|2[0-3]):(0?[0-9]|[1-5][0-9])) *- *((0?[0-9]|1[0-9]|2[0-3]):(0?[0-9]|[1-5][0-9]))$")
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if timeRangeStr == "" || !rc.Match([]byte(timeRangeStr)) {
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/* 无效的时间段 */
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return false, 0
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}
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waitTime := func(now, end time.Time) time.Duration {
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return time.Duration((end.Unix() - now.Unix())) * time.Second
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}
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timeRange := regexp.MustCompile("((0?[0-9]|1[0-9]|2[0-3]):([1-5][0-9]|0?[0-9]))").FindAllString(timeRangeStr, 2)
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now := time.Now()
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end, _ := time.ParseInLocation("2006-01-02 15:04", fmt.Sprintf("%d-%02d-%02d %s", now.Year(), now.Month(), now.Day(), timeRange[1]), time.Local)
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nowHHMM := fmt.Sprint(now.Hour(), ":", now.Minute())
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if timeCmp(timeRange[0], timeRange[1]) > 0 {
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/* 时间范围跨过0点 */
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if timeCmp(nowHHMM, timeRange[0]) >= 0 && timeCmp(nowHHMM, "23:59") <= 0 {
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/* 0点前 */
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return true, waitTime(now, end.AddDate(0, 0, 1))
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}
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if timeCmp(nowHHMM, "00:00") >= 0 && timeCmp(nowHHMM, timeRange[1]) < 0 {
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return true, waitTime(now, end)
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}
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} else {
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if timeCmp(nowHHMM, timeRange[0]) >= 0 && timeCmp(nowHHMM, timeRange[1]) < 0 {
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return true, waitTime(now, end)
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}
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}
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return false, 0
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}
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