tool

Documentation

Index

• Constants
• func AppendAvatarSize(url string, size int) string
• func AvatarLink(email string) (url string)
• func BasicAuthDecode(encoded string) (string, string, error)
• func BasicAuthEncode(username, password string) string
• func CreateTimeLimitCode(data string, minutes int, startInf interface{}) string
• func DetectEncoding(content []byte) (string, error)
• func EllipsisString(str string, length int) string
• func FileSize(s int64) string
• func HashEmail(email string) string
• func Int64sToMap(ints []int64) map[int64]bool
• func Int64sToStrings(ints []int64) []string
• func IsImageFile(data []byte) bool
• func IsLetter(ch rune) bool
• func IsPDFFile(data []byte) bool
• func IsTextFile(data []byte) bool
• func IsVideoFile(data []byte) bool
• func MD5(str string) string
• func MD5Bytes(str string) []byte
• func RandomString(n int) (string, error)
• func RawTimeSince(t time.Time, lang string) string
• func SHA1(str string) string
• func ShortSHA1(sha1 string) string
• func StringsToInt64s(strs []string) []int64
• func Subtract(left interface{}, right interface{}) interface{}
• func TimeSince(t time.Time, lang string) template.HTML
• func TimeSincePro(then time.Time) string
• func TruncateString(str string, limit int) string
• func VerifyTimeLimitCode(data string, minutes int, code string) bool

Constants

const (
	Byte  = 1
	KByte = Byte * 1024
	MByte = KByte * 1024
	GByte = MByte * 1024
	TByte = GByte * 1024
	PByte = TByte * 1024
	EByte = PByte * 1024
)

const (
	Minute = 60
	Hour   = 60 * Minute
	Day    = 24 * Hour
	Week   = 7 * Day
	Month  = 30 * Day
	Year   = 12 * Month
)

Seconds-based time units

const TIME_LIMIT_CODE_LENGTH = 12 + 6 + 40

Functions

func AppendAvatarSize

func AppendAvatarSize(url string, size int) string

AppendAvatarSize appends avatar size query parameter to the URL in the correct format.

func AvatarLink

func AvatarLink(email string) (url 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 BasicAuthDecode

func BasicAuthDecode(encoded string) (string, string, error)

BasicAuthDecode decodes username and password portions of HTTP Basic Authentication from encoded content.

func BasicAuthEncode

func BasicAuthEncode(username, password string) string

BasicAuthEncode encodes username and password in HTTP Basic Authentication format.

func CreateTimeLimitCode

func CreateTimeLimitCode(data string, minutes int, startInf interface{}) string

CreateTimeLimitCode generates a time limit code based on given input data. Format: 12 length date time string + 6 minutes string + 40 sha1 encoded string

func DetectEncoding

func DetectEncoding(content []byte) (string, error)

DetectEncoding returns best guess of encoding of given content.

func EllipsisString

func EllipsisString(str string, length int) string

EllipsisString returns a truncated short string, it appends '...' in the end of the length of string is too large.

func FileSize

func FileSize(s int64) string

FileSize calculates the file size and generate user-friendly string.

func HashEmail

func HashEmail(email string) string

HashEmail hashes email address to MD5 string. https://en.gravatar.com/site/implement/hash/

func Int64sToMap

func Int64sToMap(ints []int64) map[int64]bool

Int64sToMap converts a slice of int64 to a int64 map.

func Int64sToStrings

func Int64sToStrings(ints []int64) []string

Int64sToStrings converts a slice of int64 to a slice of string.

func IsImageFile

func IsImageFile(data []byte) bool

func IsLetter

func IsLetter(ch rune) bool

IsLetter reports whether the rune is a letter (category L). https://github.com/golang/go/blob/master/src/go/scanner/scanner.go#L257

func IsPDFFile

func IsPDFFile(data []byte) bool

func IsTextFile

func IsTextFile(data []byte) bool

IsTextFile returns true if file content format is plain text or empty.

func IsVideoFile

func IsVideoFile(data []byte) bool

func MD5

func MD5(str string) string

MD5 encodes string to MD5 hex value.

func MD5Bytes

func MD5Bytes(str string) []byte

MD5Bytes encodes string to MD5 bytes.

func RandomString

func RandomString(n int) (string, error)

RandomString returns generated random string in given length of characters. It also returns possible error during generation.

func RawTimeSince

func RawTimeSince(t time.Time, lang string) string

func SHA1

func SHA1(str string) string

SHA1 encodes string to SHA1 hex value.

func ShortSHA1

func ShortSHA1(sha1 string) string

ShortSHA1 truncates SHA1 string length to at most 10.

func StringsToInt64s

func StringsToInt64s(strs []string) []int64

StringsToInt64s converts a slice of string to a slice of int64.

func Subtract

func Subtract(left interface{}, right interface{}) interface{}

Subtract deals with subtraction of all types of number.

func TimeSince

func TimeSince(t time.Time, lang string) template.HTML

TimeSince calculates the time interval and generate user-friendly string.

func TimeSincePro

func TimeSincePro(then time.Time) string

TimeSincePro calculates the time interval and generate full user-friendly string.

func TruncateString

func TruncateString(str string, limit int) string

TruncateString returns a truncated string with given limit, it returns input string if length is not reached limit.

func VerifyTimeLimitCode

func VerifyTimeLimitCode(data string, minutes int, code string) bool

verify time limit code