kmgImage

Documentation

Index

• Constants
• Variables
• func New() string
• func NewLen(length int) string
• func NewLenChars(length int, chars []byte) string
• func PngDecodeConfigFromFile(path string) (conf image.Config, err error)
• type Image
  • func NewCaptchaImage(digits [4]int, width, height int) *Image
  • func (img *Image) WriteTo(w io.Writer) (int64, error)

Constants

const (
	// Standard length of uniuri string to achive ~95 bits of entropy.
	StdLen = 16
	// Length of uniurl string to achive ~119 bits of entropy, closest
	// to what can be losslessly converted to UUIDv4 (122 bits).
	UUIDLen = 20
)

Variables

var StdChars = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")

Standard characters allowed in uniuri string.

Functions

func New

func New() string

New returns a new random string of the standard length, consisting of standard characters.

func NewLen

func NewLen(length int) string

NewLen returns a new random string of the provided length, consisting of standard characters.

func NewLenChars

func NewLenChars(length int, chars []byte) string

NewLenChars returns a new random string of the provided length, consisting of the provided byte slice of allowed characters (maximum 256).

func PngDecodeConfigFromFile

func PngDecodeConfigFromFile(path string) (conf image.Config, err error)

Types

type Image

type Image struct {
	*image.NRGBA
	// contains filtered or unexported fields
}

func NewCaptchaImage

func NewCaptchaImage(digits [4]int, width, height int) *Image

func (*Image) WriteTo

func (img *Image) WriteTo(w io.Writer) (int64, error)