2014-02-18 17:31:16 -05:00
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// 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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2014-03-07 17:22:15 -05:00
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package base
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2014-02-18 17:31:16 -05:00
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import (
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"crypto/md5"
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2014-03-19 07:21:23 -04:00
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"crypto/rand"
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"crypto/sha1"
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2019-05-04 11:45:34 -04:00
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"crypto/sha256"
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2014-11-07 14:46:13 -05:00
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"encoding/base64"
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2014-02-18 17:31:16 -05:00
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"encoding/hex"
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2014-03-14 02:32:11 -04:00
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"fmt"
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2016-12-25 20:16:37 -05:00
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"io"
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2014-03-15 12:29:49 -04:00
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"math"
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2016-02-20 17:10:05 -05:00
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"net/http"
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2017-12-03 06:55:13 -05:00
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"net/url"
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2019-04-17 12:06:35 -04:00
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"os"
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2017-12-03 06:55:13 -05:00
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"path"
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"path/filepath"
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"runtime"
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"strconv"
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2014-03-15 03:28:06 -04:00
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"strings"
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2014-03-14 02:32:11 -04:00
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"time"
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2016-02-20 17:10:05 -05:00
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"unicode"
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2014-05-25 20:11:25 -04:00
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2019-03-27 05:33:00 -04:00
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"code.gitea.io/gitea/modules/git"
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2016-11-10 11:24:48 -05:00
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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2019-03-27 05:33:00 -04:00
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2016-11-11 07:11:45 -05:00
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"github.com/Unknwon/com"
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2014-02-18 17:31:16 -05:00
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)
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2015-11-24 18:49:34 -05:00
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// EncodeMD5 encodes 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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// EncodeSha1 string to sha1 hex value.
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func EncodeSha1(str string) string {
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h := sha1.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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2019-05-04 11:45:34 -04:00
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// EncodeSha256 string to sha1 hex value.
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func EncodeSha256(str string) string {
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h := sha256.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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2016-11-07 17:14:50 -05:00
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// ShortSha is basically just truncating.
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// It is DEPRECATED and will be removed in the future.
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func ShortSha(sha1 string) string {
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return TruncateString(sha1, 10)
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}
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// BasicAuthDecode decode basic auth string
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func BasicAuthDecode(encoded string) (string, string, error) {
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s, err := base64.StdEncoding.DecodeString(encoded)
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if err != nil {
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return "", "", err
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}
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2014-12-10 05:01:17 -05:00
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auth := strings.SplitN(string(s), ":", 2)
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return auth[0], auth[1], nil
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}
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// BasicAuthEncode encode basic auth string
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func BasicAuthEncode(username, password string) string {
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return base64.StdEncoding.EncodeToString([]byte(username + ":" + password))
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}
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2016-12-25 20:16:37 -05:00
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// GetRandomBytesAsBase64 generates a random base64 string from n bytes
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func GetRandomBytesAsBase64(n int) string {
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bytes := make([]byte, 32)
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_, err := io.ReadFull(rand.Reader, bytes)
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if err != nil {
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log.Fatal("Error reading random bytes: %v", err)
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}
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return base64.RawURLEncoding.EncodeToString(bytes)
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}
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// VerifyTimeLimitCode 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 := com.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, _ := time.ParseInLocation("200601021504", start, time.Local)
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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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// TimeLimitCodeLength default value for time limit code
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const TimeLimitCodeLength = 12 + 6 + 40
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// CreateTimeLimitCode 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 := "200601021504"
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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 = start.Format(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, _ = time.ParseInLocation(format, startStr, time.Local)
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startStr = start.Format(format)
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}
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end = start.Add(time.Minute * time.Duration(minutes))
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endStr = end.Format(format)
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// create sha1 encode string
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sh := sha1.New()
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_, _ = sh.Write([]byte(data + setting.SecretKey + startStr + endStr + com.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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2016-02-14 23:14:55 -05:00
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// HashEmail hashes email address to MD5 string.
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// https://en.gravatar.com/site/implement/hash/
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func HashEmail(email string) string {
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return EncodeMD5(strings.ToLower(strings.TrimSpace(email)))
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}
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// DefaultAvatarLink the default avatar link
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func DefaultAvatarLink() string {
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return setting.AppSubURL + "/img/avatar_default.png"
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}
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2017-12-03 06:55:13 -05:00
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// DefaultAvatarSize is a sentinel value for the default avatar size, as
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// determined by the avatar-hosting service.
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const DefaultAvatarSize = -1
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// libravatarURL returns the URL for the given email. This function should only
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// be called if a federated avatar service is enabled.
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func libravatarURL(email string) (*url.URL, error) {
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urlStr, err := setting.LibravatarService.FromEmail(email)
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if err != nil {
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log.Error("LibravatarService.FromEmail(email=%s): error %v", email, err)
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return nil, err
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}
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u, err := url.Parse(urlStr)
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if err != nil {
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log.Error("Failed to parse libravatar url(%s): error %v", urlStr, err)
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return nil, err
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}
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return u, nil
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}
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// SizedAvatarLink returns a sized link to the avatar for the given email
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// address.
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func SizedAvatarLink(email string, size int) string {
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var avatarURL *url.URL
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if setting.EnableFederatedAvatar && setting.LibravatarService != nil {
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var err error
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avatarURL, err = libravatarURL(email)
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if err != nil {
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return DefaultAvatarLink()
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}
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} else if !setting.DisableGravatar {
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// copy GravatarSourceURL, because we will modify its Path.
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copyOfGravatarSourceURL := *setting.GravatarSourceURL
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avatarURL = ©OfGravatarSourceURL
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avatarURL.Path = path.Join(avatarURL.Path, HashEmail(email))
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} else {
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return DefaultAvatarLink()
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}
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vals := avatarURL.Query()
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vals.Set("d", "identicon")
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if size != DefaultAvatarSize {
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vals.Set("s", strconv.Itoa(size))
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}
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avatarURL.RawQuery = vals.Encode()
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return avatarURL.String()
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}
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// AvatarLink returns relative avatar link to the site domain by given email,
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// which includes app sub-url as prefix. However, it is possible
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// to return full URL if user enables Gravatar-like service.
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func AvatarLink(email string) string {
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return SizedAvatarLink(email, DefaultAvatarSize)
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}
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// Storage space size types
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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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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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2014-03-14 19:34:59 -04:00
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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 = true
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switch v := left.(type) {
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case int:
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rleft = int64(v)
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case int8:
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rleft = int64(v)
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case int16:
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rleft = int64(v)
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case int32:
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rleft = int64(v)
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case int64:
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rleft = v
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case float32:
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fleft = float64(v)
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isInt = false
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case float64:
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fleft = v
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isInt = false
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}
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switch v := right.(type) {
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case int:
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rright = int64(v)
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case int8:
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rright = int64(v)
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case int16:
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rright = int64(v)
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case int32:
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rright = int64(v)
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case int64:
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rright = v
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case float32:
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fright = float64(v)
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2014-03-14 19:34:59 -04:00
|
|
|
isInt = false
|
|
|
|
case float64:
|
2019-05-28 11:45:54 -04:00
|
|
|
fright = v
|
2014-03-14 19:34:59 -04:00
|
|
|
isInt = false
|
|
|
|
}
|
|
|
|
|
|
|
|
if isInt {
|
|
|
|
return rleft - rright
|
|
|
|
}
|
2016-11-24 02:17:44 -05:00
|
|
|
return fleft + float64(rleft) - (fright + float64(rright))
|
2014-03-14 19:34:59 -04:00
|
|
|
}
|
2015-08-10 04:52:08 -04:00
|
|
|
|
2016-01-11 07:41:43 -05:00
|
|
|
// EllipsisString returns a truncated short string,
|
|
|
|
// it appends '...' in the end of the length of string is too large.
|
|
|
|
func EllipsisString(str string, length int) string {
|
2016-11-07 15:27:14 -05:00
|
|
|
if length <= 3 {
|
|
|
|
return "..."
|
|
|
|
}
|
|
|
|
if len(str) <= length {
|
2016-01-11 07:41:43 -05:00
|
|
|
return str
|
|
|
|
}
|
|
|
|
return str[:length-3] + "..."
|
|
|
|
}
|
|
|
|
|
2016-03-05 00:51:51 -05:00
|
|
|
// TruncateString returns a truncated string with given limit,
|
|
|
|
// it returns input string if length is not reached limit.
|
|
|
|
func TruncateString(str string, limit int) string {
|
|
|
|
if len(str) < limit {
|
|
|
|
return str
|
|
|
|
}
|
|
|
|
return str[:limit]
|
|
|
|
}
|
|
|
|
|
2015-08-10 04:52:08 -04:00
|
|
|
// StringsToInt64s converts a slice of string to a slice of int64.
|
2016-12-22 03:58:04 -05:00
|
|
|
func StringsToInt64s(strs []string) ([]int64, error) {
|
2015-08-10 04:52:08 -04:00
|
|
|
ints := make([]int64, len(strs))
|
|
|
|
for i := range strs {
|
2016-12-22 03:58:04 -05:00
|
|
|
n, err := com.StrTo(strs[i]).Int64()
|
|
|
|
if err != nil {
|
|
|
|
return ints, err
|
|
|
|
}
|
|
|
|
ints[i] = n
|
2015-08-10 04:52:08 -04:00
|
|
|
}
|
2016-12-22 03:58:04 -05:00
|
|
|
return ints, nil
|
2015-08-10 04:52:08 -04:00
|
|
|
}
|
|
|
|
|
2015-08-25 11:22:05 -04:00
|
|
|
// Int64sToStrings converts a slice of int64 to a slice of string.
|
|
|
|
func Int64sToStrings(ints []int64) []string {
|
|
|
|
strs := make([]string, len(ints))
|
|
|
|
for i := range ints {
|
2016-11-07 15:49:50 -05:00
|
|
|
strs[i] = strconv.FormatInt(ints[i], 10)
|
2015-08-25 11:22:05 -04:00
|
|
|
}
|
|
|
|
return strs
|
|
|
|
}
|
|
|
|
|
2015-08-10 04:52:08 -04:00
|
|
|
// Int64sToMap converts a slice of int64 to a int64 map.
|
|
|
|
func Int64sToMap(ints []int64) map[int64]bool {
|
|
|
|
m := make(map[int64]bool)
|
|
|
|
for _, i := range ints {
|
|
|
|
m[i] = true
|
|
|
|
}
|
|
|
|
return m
|
|
|
|
}
|
2016-02-20 17:10:05 -05:00
|
|
|
|
2017-09-14 04:16:22 -04:00
|
|
|
// Int64sContains returns if a int64 in a slice of int64
|
|
|
|
func Int64sContains(intsSlice []int64, a int64) bool {
|
|
|
|
for _, c := range intsSlice {
|
|
|
|
if c == a {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
2016-02-20 17:10:05 -05:00
|
|
|
// IsLetter reports whether the rune is a letter (category L).
|
|
|
|
// https://github.com/golang/go/blob/master/src/go/scanner/scanner.go#L257
|
|
|
|
func IsLetter(ch rune) bool {
|
|
|
|
return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '_' || ch >= 0x80 && unicode.IsLetter(ch)
|
|
|
|
}
|
|
|
|
|
2016-08-31 16:59:23 -04:00
|
|
|
// IsTextFile returns true if file content format is plain text or empty.
|
2016-08-30 05:08:38 -04:00
|
|
|
func IsTextFile(data []byte) bool {
|
2016-08-31 16:59:23 -04:00
|
|
|
if len(data) == 0 {
|
|
|
|
return true
|
|
|
|
}
|
2019-06-12 15:41:28 -04:00
|
|
|
return strings.Contains(http.DetectContentType(data), "text/")
|
2016-02-20 17:10:05 -05:00
|
|
|
}
|
|
|
|
|
2017-02-27 23:56:15 -05:00
|
|
|
// IsImageFile detects if data is an image format
|
2016-08-30 05:08:38 -04:00
|
|
|
func IsImageFile(data []byte) bool {
|
2019-06-12 15:41:28 -04:00
|
|
|
return strings.Contains(http.DetectContentType(data), "image/")
|
2016-02-20 17:10:05 -05:00
|
|
|
}
|
2016-04-26 21:48:44 -04:00
|
|
|
|
2017-02-27 23:56:15 -05:00
|
|
|
// IsPDFFile detects if data is a pdf format
|
2016-08-30 05:08:38 -04:00
|
|
|
func IsPDFFile(data []byte) bool {
|
2019-06-12 15:41:28 -04:00
|
|
|
return strings.Contains(http.DetectContentType(data), "application/pdf")
|
2016-04-26 21:48:44 -04:00
|
|
|
}
|
2016-12-20 03:09:11 -05:00
|
|
|
|
2017-02-27 23:56:15 -05:00
|
|
|
// IsVideoFile detects if data is an video format
|
2016-12-20 03:09:11 -05:00
|
|
|
func IsVideoFile(data []byte) bool {
|
2019-06-12 15:41:28 -04:00
|
|
|
return strings.Contains(http.DetectContentType(data), "video/")
|
2016-12-20 03:09:11 -05:00
|
|
|
}
|
2018-05-01 03:04:36 -04:00
|
|
|
|
2018-10-29 22:17:26 -04:00
|
|
|
// IsAudioFile detects if data is an video format
|
|
|
|
func IsAudioFile(data []byte) bool {
|
2019-06-12 15:41:28 -04:00
|
|
|
return strings.Contains(http.DetectContentType(data), "audio/")
|
2018-10-29 22:17:26 -04:00
|
|
|
}
|
|
|
|
|
2018-05-01 03:04:36 -04:00
|
|
|
// EntryIcon returns the octicon class for displaying files/directories
|
|
|
|
func EntryIcon(entry *git.TreeEntry) string {
|
|
|
|
switch {
|
|
|
|
case entry.IsLink():
|
|
|
|
te, err := entry.FollowLink()
|
|
|
|
if err != nil {
|
|
|
|
log.Debug(err.Error())
|
|
|
|
return "file-symlink-file"
|
|
|
|
}
|
|
|
|
if te.IsDir() {
|
|
|
|
return "file-symlink-directory"
|
|
|
|
}
|
|
|
|
return "file-symlink-file"
|
|
|
|
case entry.IsDir():
|
|
|
|
return "file-directory"
|
|
|
|
case entry.IsSubModule():
|
|
|
|
return "file-submodule"
|
|
|
|
}
|
|
|
|
|
|
|
|
return "file-text"
|
|
|
|
}
|
2019-04-17 12:06:35 -04:00
|
|
|
|
|
|
|
// SetupGiteaRoot Sets GITEA_ROOT if it is not already set and returns the value
|
|
|
|
func SetupGiteaRoot() string {
|
|
|
|
giteaRoot := os.Getenv("GITEA_ROOT")
|
|
|
|
if giteaRoot == "" {
|
|
|
|
_, filename, _, _ := runtime.Caller(0)
|
|
|
|
giteaRoot = strings.TrimSuffix(filename, "modules/base/tool.go")
|
|
|
|
wd, err := os.Getwd()
|
|
|
|
if err != nil {
|
|
|
|
rel, err := filepath.Rel(giteaRoot, wd)
|
|
|
|
if err != nil && strings.HasPrefix(filepath.ToSlash(rel), "../") {
|
|
|
|
giteaRoot = wd
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if _, err := os.Stat(filepath.Join(giteaRoot, "gitea")); os.IsNotExist(err) {
|
|
|
|
giteaRoot = ""
|
|
|
|
} else if err := os.Setenv("GITEA_ROOT", giteaRoot); err != nil {
|
|
|
|
giteaRoot = ""
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return giteaRoot
|
|
|
|
}
|