mirror of
https://codeberg.org/forgejo/forgejo
synced 2024-12-05 02:54:46 +01:00
435 lines
11 KiB
Go
435 lines
11 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package base
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import (
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"bytes"
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"crypto/md5"
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"crypto/rand"
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"crypto/sha1"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"math"
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"strconv"
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"strings"
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"time"
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)
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// Encode string to md5 hex value
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func EncodeMd5(str string) string {
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m := md5.New()
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m.Write([]byte(str))
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return hex.EncodeToString(m.Sum(nil))
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}
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// Random generate string
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func GetRandomString(n int) string {
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const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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var bytes = make([]byte, n)
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rand.Read(bytes)
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for i, b := range bytes {
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bytes[i] = alphanum[b%byte(len(alphanum))]
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}
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return string(bytes)
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}
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// verify time limit code
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func VerifyTimeLimitCode(data string, minutes int, code string) bool {
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if len(code) <= 18 {
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return false
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}
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// split code
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start := code[:12]
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lives := code[12:18]
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if d, err := StrTo(lives).Int(); err == nil {
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minutes = d
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}
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// right active code
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retCode := CreateTimeLimitCode(data, minutes, start)
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if retCode == code && minutes > 0 {
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// check time is expired or not
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before, _ := DateParse(start, "YmdHi")
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now := time.Now()
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if before.Add(time.Minute*time.Duration(minutes)).Unix() > now.Unix() {
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return true
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}
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}
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return false
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}
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const TimeLimitCodeLength = 12 + 6 + 40
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// create a time limit code
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// code format: 12 length date time string + 6 minutes string + 40 sha1 encoded string
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func CreateTimeLimitCode(data string, minutes int, startInf interface{}) string {
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format := "YmdHi"
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var start, end time.Time
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var startStr, endStr string
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if startInf == nil {
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// Use now time create code
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start = time.Now()
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startStr = DateFormat(start, format)
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} else {
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// use start string create code
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startStr = startInf.(string)
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start, _ = DateParse(startStr, format)
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startStr = DateFormat(start, format)
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}
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end = start.Add(time.Minute * time.Duration(minutes))
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endStr = DateFormat(end, format)
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// create sha1 encode string
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sh := sha1.New()
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sh.Write([]byte(data + SecretKey + startStr + endStr + ToStr(minutes)))
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encoded := hex.EncodeToString(sh.Sum(nil))
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code := fmt.Sprintf("%s%06d%s", startStr, minutes, encoded)
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return code
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}
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// AvatarLink returns avatar link by given e-mail.
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func AvatarLink(email string) string {
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return "http://1.gravatar.com/avatar/" + EncodeMd5(email)
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}
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// Seconds-based time units
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const (
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Minute = 60
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Hour = 60 * Minute
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Day = 24 * Hour
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Week = 7 * Day
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Month = 30 * Day
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Year = 12 * Month
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)
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// TimeSince calculates the time interval and generate user-friendly string.
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func TimeSince(then time.Time) string {
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now := time.Now()
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lbl := "ago"
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diff := now.Unix() - then.Unix()
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if then.After(now) {
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lbl = "from now"
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diff = then.Unix() - now.Unix()
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}
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switch {
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case diff <= 0:
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return "now"
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case diff <= 2:
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return fmt.Sprintf("1 second %s", lbl)
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case diff < 1*Minute:
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return fmt.Sprintf("%d seconds %s", diff, lbl)
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case diff < 2*Minute:
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return fmt.Sprintf("1 minute %s", lbl)
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case diff < 1*Hour:
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return fmt.Sprintf("%d minutes %s", diff/Minute, lbl)
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case diff < 2*Hour:
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return fmt.Sprintf("1 hour %s", lbl)
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case diff < 1*Day:
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return fmt.Sprintf("%d hours %s", diff/Hour, lbl)
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case diff < 2*Day:
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return fmt.Sprintf("1 day %s", lbl)
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case diff < 1*Week:
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return fmt.Sprintf("%d days %s", diff/Day, lbl)
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case diff < 2*Week:
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return fmt.Sprintf("1 week %s", lbl)
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case diff < 1*Month:
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return fmt.Sprintf("%d weeks %s", diff/Week, lbl)
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case diff < 2*Month:
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return fmt.Sprintf("1 month %s", lbl)
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case diff < 1*Year:
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return fmt.Sprintf("%d months %s", diff/Month, lbl)
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case diff < 18*Month:
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return fmt.Sprintf("1 year %s", lbl)
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}
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return then.String()
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}
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const (
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Byte = 1
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KByte = Byte * 1024
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MByte = KByte * 1024
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GByte = MByte * 1024
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TByte = GByte * 1024
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PByte = TByte * 1024
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EByte = PByte * 1024
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)
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var bytesSizeTable = map[string]uint64{
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"b": Byte,
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"kb": KByte,
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"mb": MByte,
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"gb": GByte,
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"tb": TByte,
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"pb": PByte,
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"eb": EByte,
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}
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func logn(n, b float64) float64 {
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return math.Log(n) / math.Log(b)
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}
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func humanateBytes(s uint64, base float64, sizes []string) string {
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if s < 10 {
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return fmt.Sprintf("%dB", s)
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}
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e := math.Floor(logn(float64(s), base))
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suffix := sizes[int(e)]
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val := float64(s) / math.Pow(base, math.Floor(e))
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f := "%.0f"
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if val < 10 {
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f = "%.1f"
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}
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return fmt.Sprintf(f+"%s", val, suffix)
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}
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// FileSize calculates the file size and generate user-friendly string.
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func FileSize(s int64) string {
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sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
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return humanateBytes(uint64(s), 1024, sizes)
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}
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// Subtract deals with subtraction of all types of number.
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func Subtract(left interface{}, right interface{}) interface{} {
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var rleft, rright int64
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var fleft, fright float64
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var isInt bool = true
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switch left.(type) {
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case int:
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rleft = int64(left.(int))
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case int8:
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rleft = int64(left.(int8))
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case int16:
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rleft = int64(left.(int16))
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case int32:
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rleft = int64(left.(int32))
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case int64:
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rleft = left.(int64)
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case float32:
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fleft = float64(left.(float32))
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isInt = false
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case float64:
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fleft = left.(float64)
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isInt = false
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}
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switch right.(type) {
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case int:
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rright = int64(right.(int))
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case int8:
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rright = int64(right.(int8))
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case int16:
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rright = int64(right.(int16))
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case int32:
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rright = int64(right.(int32))
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case int64:
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rright = right.(int64)
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case float32:
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fright = float64(left.(float32))
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isInt = false
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case float64:
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fleft = left.(float64)
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isInt = false
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}
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if isInt {
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return rleft - rright
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} else {
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return fleft + float64(rleft) - (fright + float64(rright))
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}
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}
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// DateFormat pattern rules.
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var datePatterns = []string{
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// year
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"Y", "2006", // A full numeric representation of a year, 4 digits Examples: 1999 or 2003
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"y", "06", //A two digit representation of a year Examples: 99 or 03
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// month
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"m", "01", // Numeric representation of a month, with leading zeros 01 through 12
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"n", "1", // Numeric representation of a month, without leading zeros 1 through 12
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"M", "Jan", // A short textual representation of a month, three letters Jan through Dec
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"F", "January", // A full textual representation of a month, such as January or March January through December
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// day
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"d", "02", // Day of the month, 2 digits with leading zeros 01 to 31
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"j", "2", // Day of the month without leading zeros 1 to 31
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// week
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"D", "Mon", // A textual representation of a day, three letters Mon through Sun
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"l", "Monday", // A full textual representation of the day of the week Sunday through Saturday
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// time
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"g", "3", // 12-hour format of an hour without leading zeros 1 through 12
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"G", "15", // 24-hour format of an hour without leading zeros 0 through 23
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"h", "03", // 12-hour format of an hour with leading zeros 01 through 12
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"H", "15", // 24-hour format of an hour with leading zeros 00 through 23
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"a", "pm", // Lowercase Ante meridiem and Post meridiem am or pm
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"A", "PM", // Uppercase Ante meridiem and Post meridiem AM or PM
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"i", "04", // Minutes with leading zeros 00 to 59
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"s", "05", // Seconds, with leading zeros 00 through 59
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// time zone
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"T", "MST",
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"P", "-07:00",
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"O", "-0700",
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// RFC 2822
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"r", time.RFC1123Z,
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}
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// Parse Date use PHP time format.
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func DateParse(dateString, format string) (time.Time, error) {
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replacer := strings.NewReplacer(datePatterns...)
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format = replacer.Replace(format)
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return time.ParseInLocation(format, dateString, time.Local)
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}
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// Date takes a PHP like date func to Go's time format.
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func DateFormat(t time.Time, format string) string {
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replacer := strings.NewReplacer(datePatterns...)
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format = replacer.Replace(format)
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return t.Format(format)
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}
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// convert string to specify type
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type StrTo string
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func (f StrTo) Exist() bool {
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return string(f) != string(0x1E)
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}
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func (f StrTo) Int() (int, error) {
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v, err := strconv.ParseInt(f.String(), 10, 32)
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return int(v), err
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}
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func (f StrTo) String() string {
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if f.Exist() {
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return string(f)
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}
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return ""
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}
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// convert any type to string
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func ToStr(value interface{}, args ...int) (s string) {
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switch v := value.(type) {
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case bool:
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s = strconv.FormatBool(v)
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case float32:
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s = strconv.FormatFloat(float64(v), 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 32))
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case float64:
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s = strconv.FormatFloat(v, 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 64))
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case int:
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s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
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case int8:
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s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
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case int16:
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s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
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case int32:
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s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
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case int64:
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s = strconv.FormatInt(v, argInt(args).Get(0, 10))
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case uint:
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s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
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case uint8:
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s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
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case uint16:
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s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
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case uint32:
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s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
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case uint64:
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s = strconv.FormatUint(v, argInt(args).Get(0, 10))
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case string:
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s = v
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case []byte:
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s = string(v)
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default:
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s = fmt.Sprintf("%v", v)
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}
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return s
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}
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type argInt []int
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func (a argInt) Get(i int, args ...int) (r int) {
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if i >= 0 && i < len(a) {
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r = a[i]
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}
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if len(args) > 0 {
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r = args[0]
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}
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return
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}
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type Actioner interface {
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GetOpType() int
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GetActUserName() string
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GetRepoName() string
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GetContent() string
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}
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// ActionIcon accepts a int that represents action operation type
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// and returns a icon class name.
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func ActionIcon(opType int) string {
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switch opType {
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case 1: // Create repository.
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return "plus-circle"
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case 5: // Commit repository.
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return "arrow-circle-o-right"
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default:
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return "invalid type"
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}
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}
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const (
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TPL_CREATE_REPO = `<a href="/user/%s">%s</a> created repository <a href="/%s/%s">%s</a>`
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TPL_COMMIT_REPO = `<a href="/user/%s">%s</a> pushed to <a href="/%s/%s/tree/%s">%s</a> at <a href="/%s/%s">%s/%s</a>%s`
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TPL_COMMIT_REPO_LI = `<div><img id="gogs-user-avatar-commit" src="%s?s=16" alt="user-avatar" title="username"/> <a href="/%s/%s/commit/%s">%s</a> %s</div>`
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)
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// ActionDesc accepts int that represents action operation type
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// and returns the description.
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func ActionDesc(act Actioner, avatarLink string) string {
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actUserName := act.GetActUserName()
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repoName := act.GetRepoName()
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content := act.GetContent()
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switch act.GetOpType() {
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case 1: // Create repository.
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return fmt.Sprintf(TPL_CREATE_REPO, actUserName, actUserName, actUserName, repoName, repoName)
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case 5: // Commit repository.
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var commits [][]string
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if err := json.Unmarshal([]byte(content), &commits); err != nil {
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return err.Error()
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}
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buf := bytes.NewBuffer([]byte("\n"))
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for _, commit := range commits {
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buf.WriteString(fmt.Sprintf(TPL_COMMIT_REPO_LI, avatarLink, actUserName, repoName, commit[0], commit[0][:7], commit[1]) + "\n")
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}
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return fmt.Sprintf(TPL_COMMIT_REPO, actUserName, actUserName, actUserName, repoName, "master", "master", actUserName, repoName, actUserName, repoName,
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buf.String())
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default:
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return "invalid type"
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}
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}
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