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- // Copyright 2014 The Gogs Authors. All rights reserved.
- // Use of this source code is governed by a MIT-style
- // license that can be found in the LICENSE file.
-
- package base
-
- import (
- "crypto/md5"
- "crypto/rand"
- "crypto/sha1"
- "crypto/sha256"
- "encoding/base64"
- "encoding/hex"
- "fmt"
- "html/template"
- "io"
- "math"
- "net/http"
- "net/url"
- "os"
- "path"
- "path/filepath"
- "runtime"
- "strconv"
- "strings"
- "time"
- "unicode"
-
- "code.gitea.io/gitea/modules/git"
- "code.gitea.io/gitea/modules/log"
- "code.gitea.io/gitea/modules/setting"
- "code.gitea.io/gitea/modules/util"
-
- "github.com/Unknwon/com"
- "github.com/Unknwon/i18n"
- )
-
- // EncodeMD5 encodes string to md5 hex value.
- func EncodeMD5(str string) string {
- m := md5.New()
- _, _ = m.Write([]byte(str))
- return hex.EncodeToString(m.Sum(nil))
- }
-
- // EncodeSha1 string to sha1 hex value.
- func EncodeSha1(str string) string {
- h := sha1.New()
- _, _ = h.Write([]byte(str))
- return hex.EncodeToString(h.Sum(nil))
- }
-
- // EncodeSha256 string to sha1 hex value.
- func EncodeSha256(str string) string {
- h := sha256.New()
- _, _ = h.Write([]byte(str))
- return hex.EncodeToString(h.Sum(nil))
- }
-
- // ShortSha is basically just truncating.
- // It is DEPRECATED and will be removed in the future.
- func ShortSha(sha1 string) string {
- return TruncateString(sha1, 10)
- }
-
- // BasicAuthDecode decode basic auth string
- func BasicAuthDecode(encoded string) (string, string, error) {
- s, err := base64.StdEncoding.DecodeString(encoded)
- if err != nil {
- return "", "", err
- }
-
- auth := strings.SplitN(string(s), ":", 2)
- return auth[0], auth[1], nil
- }
-
- // BasicAuthEncode encode basic auth string
- func BasicAuthEncode(username, password string) string {
- return base64.StdEncoding.EncodeToString([]byte(username + ":" + password))
- }
-
- // GetRandomBytesAsBase64 generates a random base64 string from n bytes
- func GetRandomBytesAsBase64(n int) string {
- bytes := make([]byte, 32)
- _, err := io.ReadFull(rand.Reader, bytes)
-
- if err != nil {
- log.Fatal("Error reading random bytes: %v", err)
- }
-
- return base64.RawURLEncoding.EncodeToString(bytes)
- }
-
- // VerifyTimeLimitCode verify time limit code
- func VerifyTimeLimitCode(data string, minutes int, code string) bool {
- if len(code) <= 18 {
- return false
- }
-
- // split code
- start := code[:12]
- lives := code[12:18]
- if d, err := com.StrTo(lives).Int(); err == nil {
- minutes = d
- }
-
- // right active code
- retCode := CreateTimeLimitCode(data, minutes, start)
- if retCode == code && minutes > 0 {
- // check time is expired or not
- before, _ := time.ParseInLocation("200601021504", start, time.Local)
- now := time.Now()
- if before.Add(time.Minute*time.Duration(minutes)).Unix() > now.Unix() {
- return true
- }
- }
-
- return false
- }
-
- // TimeLimitCodeLength default value for time limit code
- const TimeLimitCodeLength = 12 + 6 + 40
-
- // CreateTimeLimitCode create a time limit code
- // code format: 12 length date time string + 6 minutes string + 40 sha1 encoded string
- func CreateTimeLimitCode(data string, minutes int, startInf interface{}) string {
- format := "200601021504"
-
- var start, end time.Time
- var startStr, endStr string
-
- if startInf == nil {
- // Use now time create code
- start = time.Now()
- startStr = start.Format(format)
- } else {
- // use start string create code
- startStr = startInf.(string)
- start, _ = time.ParseInLocation(format, startStr, time.Local)
- startStr = start.Format(format)
- }
-
- end = start.Add(time.Minute * time.Duration(minutes))
- endStr = end.Format(format)
-
- // create sha1 encode string
- sh := sha1.New()
- _, _ = sh.Write([]byte(data + setting.SecretKey + startStr + endStr + com.ToStr(minutes)))
- encoded := hex.EncodeToString(sh.Sum(nil))
-
- code := fmt.Sprintf("%s%06d%s", startStr, minutes, encoded)
- return code
- }
-
- // HashEmail hashes email address to MD5 string.
- // https://en.gravatar.com/site/implement/hash/
- func HashEmail(email string) string {
- return EncodeMD5(strings.ToLower(strings.TrimSpace(email)))
- }
-
- // DefaultAvatarLink the default avatar link
- func DefaultAvatarLink() string {
- return setting.AppSubURL + "/img/avatar_default.png"
- }
-
- // DefaultAvatarSize is a sentinel value for the default avatar size, as
- // determined by the avatar-hosting service.
- const DefaultAvatarSize = -1
-
- // libravatarURL returns the URL for the given email. This function should only
- // be called if a federated avatar service is enabled.
- func libravatarURL(email string) (*url.URL, error) {
- urlStr, err := setting.LibravatarService.FromEmail(email)
- if err != nil {
- log.Error("LibravatarService.FromEmail(email=%s): error %v", email, err)
- return nil, err
- }
- u, err := url.Parse(urlStr)
- if err != nil {
- log.Error("Failed to parse libravatar url(%s): error %v", urlStr, err)
- return nil, err
- }
- return u, nil
- }
-
- // SizedAvatarLink returns a sized link to the avatar for the given email
- // address.
- func SizedAvatarLink(email string, size int) string {
- var avatarURL *url.URL
- if setting.EnableFederatedAvatar && setting.LibravatarService != nil {
- var err error
- avatarURL, err = libravatarURL(email)
- if err != nil {
- return DefaultAvatarLink()
- }
- } else if !setting.DisableGravatar {
- // copy GravatarSourceURL, because we will modify its Path.
- copyOfGravatarSourceURL := *setting.GravatarSourceURL
- avatarURL = ©OfGravatarSourceURL
- avatarURL.Path = path.Join(avatarURL.Path, HashEmail(email))
- } else {
- return DefaultAvatarLink()
- }
-
- vals := avatarURL.Query()
- vals.Set("d", "identicon")
- if size != DefaultAvatarSize {
- vals.Set("s", strconv.Itoa(size))
- }
- avatarURL.RawQuery = vals.Encode()
- return avatarURL.String()
- }
-
- // AvatarLink returns relative avatar link to the site domain by given email,
- // which includes app sub-url as prefix. However, it is possible
- // to return full URL if user enables Gravatar-like service.
- func AvatarLink(email string) string {
- return SizedAvatarLink(email, DefaultAvatarSize)
- }
-
- // Seconds-based time units
- const (
- Minute = 60
- Hour = 60 * Minute
- Day = 24 * Hour
- Week = 7 * Day
- Month = 30 * Day
- Year = 12 * Month
- )
-
- func computeTimeDiff(diff int64, lang string) (int64, string) {
- diffStr := ""
- switch {
- case diff <= 0:
- diff = 0
- diffStr = i18n.Tr(lang, "tool.now")
- case diff < 2:
- diff = 0
- diffStr = i18n.Tr(lang, "tool.1s")
- case diff < 1*Minute:
- diffStr = i18n.Tr(lang, "tool.seconds", diff)
- diff = 0
-
- case diff < 2*Minute:
- diff -= 1 * Minute
- diffStr = i18n.Tr(lang, "tool.1m")
- case diff < 1*Hour:
- diffStr = i18n.Tr(lang, "tool.minutes", diff/Minute)
- diff -= diff / Minute * Minute
-
- case diff < 2*Hour:
- diff -= 1 * Hour
- diffStr = i18n.Tr(lang, "tool.1h")
- case diff < 1*Day:
- diffStr = i18n.Tr(lang, "tool.hours", diff/Hour)
- diff -= diff / Hour * Hour
-
- case diff < 2*Day:
- diff -= 1 * Day
- diffStr = i18n.Tr(lang, "tool.1d")
- case diff < 1*Week:
- diffStr = i18n.Tr(lang, "tool.days", diff/Day)
- diff -= diff / Day * Day
-
- case diff < 2*Week:
- diff -= 1 * Week
- diffStr = i18n.Tr(lang, "tool.1w")
- case diff < 1*Month:
- diffStr = i18n.Tr(lang, "tool.weeks", diff/Week)
- diff -= diff / Week * Week
-
- case diff < 2*Month:
- diff -= 1 * Month
- diffStr = i18n.Tr(lang, "tool.1mon")
- case diff < 1*Year:
- diffStr = i18n.Tr(lang, "tool.months", diff/Month)
- diff -= diff / Month * Month
-
- case diff < 2*Year:
- diff -= 1 * Year
- diffStr = i18n.Tr(lang, "tool.1y")
- default:
- diffStr = i18n.Tr(lang, "tool.years", diff/Year)
- diff -= (diff / Year) * Year
- }
- return diff, diffStr
- }
-
- // MinutesToFriendly returns a user friendly string with number of minutes
- // converted to hours and minutes.
- func MinutesToFriendly(minutes int, lang string) string {
- duration := time.Duration(minutes) * time.Minute
- return TimeSincePro(time.Now().Add(-duration), lang)
- }
-
- // TimeSincePro calculates the time interval and generate full user-friendly string.
- func TimeSincePro(then time.Time, lang string) string {
- return timeSincePro(then, time.Now(), lang)
- }
-
- func timeSincePro(then, now time.Time, lang string) string {
- diff := now.Unix() - then.Unix()
-
- if then.After(now) {
- return i18n.Tr(lang, "tool.future")
- }
- if diff == 0 {
- return i18n.Tr(lang, "tool.now")
- }
-
- var timeStr, diffStr string
- for {
- if diff == 0 {
- break
- }
-
- diff, diffStr = computeTimeDiff(diff, lang)
- timeStr += ", " + diffStr
- }
- return strings.TrimPrefix(timeStr, ", ")
- }
-
- func timeSince(then, now time.Time, lang string) string {
- return timeSinceUnix(then.Unix(), now.Unix(), lang)
- }
-
- func timeSinceUnix(then, now int64, lang string) string {
- lbl := "tool.ago"
- diff := now - then
- if then > now {
- lbl = "tool.from_now"
- diff = then - now
- }
- if diff <= 0 {
- return i18n.Tr(lang, "tool.now")
- }
-
- _, diffStr := computeTimeDiff(diff, lang)
- return i18n.Tr(lang, lbl, diffStr)
- }
-
- // RawTimeSince retrieves i18n key of time since t
- func RawTimeSince(t time.Time, lang string) string {
- return timeSince(t, time.Now(), lang)
- }
-
- // TimeSince calculates the time interval and generate user-friendly string.
- func TimeSince(then time.Time, lang string) template.HTML {
- return htmlTimeSince(then, time.Now(), lang)
- }
-
- func htmlTimeSince(then, now time.Time, lang string) template.HTML {
- return template.HTML(fmt.Sprintf(`<span class="time-since" title="%s">%s</span>`,
- then.Format(setting.TimeFormat),
- timeSince(then, now, lang)))
- }
-
- // TimeSinceUnix calculates the time interval and generate user-friendly string.
- func TimeSinceUnix(then util.TimeStamp, lang string) template.HTML {
- return htmlTimeSinceUnix(then, util.TimeStamp(time.Now().Unix()), lang)
- }
-
- func htmlTimeSinceUnix(then, now util.TimeStamp, lang string) template.HTML {
- return template.HTML(fmt.Sprintf(`<span class="time-since" title="%s">%s</span>`,
- then.Format(setting.TimeFormat),
- timeSinceUnix(int64(then), int64(now), lang)))
- }
-
- // Storage space size types
- const (
- Byte = 1
- KByte = Byte * 1024
- MByte = KByte * 1024
- GByte = MByte * 1024
- TByte = GByte * 1024
- PByte = TByte * 1024
- EByte = PByte * 1024
- )
-
- func logn(n, b float64) float64 {
- return math.Log(n) / math.Log(b)
- }
-
- func humanateBytes(s uint64, base float64, sizes []string) string {
- if s < 10 {
- return fmt.Sprintf("%dB", s)
- }
- e := math.Floor(logn(float64(s), base))
- suffix := sizes[int(e)]
- val := float64(s) / math.Pow(base, math.Floor(e))
- f := "%.0f"
- if val < 10 {
- f = "%.1f"
- }
-
- return fmt.Sprintf(f+"%s", val, suffix)
- }
-
- // FileSize calculates the file size and generate user-friendly string.
- func FileSize(s int64) string {
- sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
- return humanateBytes(uint64(s), 1024, sizes)
- }
-
- // Subtract deals with subtraction of all types of number.
- func Subtract(left interface{}, right interface{}) interface{} {
- var rleft, rright int64
- var fleft, fright float64
- var isInt = true
- switch v := left.(type) {
- case int:
- rleft = int64(v)
- case int8:
- rleft = int64(v)
- case int16:
- rleft = int64(v)
- case int32:
- rleft = int64(v)
- case int64:
- rleft = v
- case float32:
- fleft = float64(v)
- isInt = false
- case float64:
- fleft = v
- isInt = false
- }
-
- switch v := right.(type) {
- case int:
- rright = int64(v)
- case int8:
- rright = int64(v)
- case int16:
- rright = int64(v)
- case int32:
- rright = int64(v)
- case int64:
- rright = v
- case float32:
- fright = float64(v)
- isInt = false
- case float64:
- fright = v
- isInt = false
- }
-
- if isInt {
- return rleft - rright
- }
- return fleft + float64(rleft) - (fright + float64(rright))
- }
-
- // 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 {
- if length <= 3 {
- return "..."
- }
- if len(str) <= length {
- return str
- }
- return str[:length-3] + "..."
- }
-
- // 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]
- }
-
- // StringsToInt64s converts a slice of string to a slice of int64.
- func StringsToInt64s(strs []string) ([]int64, error) {
- ints := make([]int64, len(strs))
- for i := range strs {
- n, err := com.StrTo(strs[i]).Int64()
- if err != nil {
- return ints, err
- }
- ints[i] = n
- }
- return ints, nil
- }
-
- // 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 {
- strs[i] = strconv.FormatInt(ints[i], 10)
- }
- return strs
- }
-
- // 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
- }
-
- // 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
- }
-
- // 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)
- }
-
- // IsTextFile returns true if file content format is plain text or empty.
- func IsTextFile(data []byte) bool {
- if len(data) == 0 {
- return true
- }
- return strings.Contains(http.DetectContentType(data), "text/")
- }
-
- // IsImageFile detects if data is an image format
- func IsImageFile(data []byte) bool {
- return strings.Contains(http.DetectContentType(data), "image/")
- }
-
- // IsPDFFile detects if data is a pdf format
- func IsPDFFile(data []byte) bool {
- return strings.Contains(http.DetectContentType(data), "application/pdf")
- }
-
- // IsVideoFile detects if data is an video format
- func IsVideoFile(data []byte) bool {
- return strings.Contains(http.DetectContentType(data), "video/")
- }
-
- // IsAudioFile detects if data is an video format
- func IsAudioFile(data []byte) bool {
- return strings.Contains(http.DetectContentType(data), "audio/")
- }
-
- // 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"
- }
-
- // 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
- }
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