utils

Documentation

Index

• func CallerFile(deep int) (path string, line int)
• func CallerFileName(deep int) string
• func CallerFilePath(deep int) string
• func ChangeFileExtension(filename, targetExt string) string
• func ConstantTimeCompareStrings(a, b string) bool
• func GeneratePEMCert(bits int, organization string, maxAge time.Duration) (cert, key []byte, err error)
• func GenerateTLSCert(bits int, organization string, maxAge time.Duration) (*tls.Certificate, error)
• func ImageJPGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)
• func ImageJPGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error
• func ImagePNGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)
• func ImagePNGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error
• func ImageRead(filename string, src io.Reader) (image.Image, error)
• func NewCloser(f func() error) io.Closer
• func NewDiscardLogger() *log.Logger
• func Perm(s []string, f func([]string))
• func PutUUID(dst16 []byte)
• func PutUUIDString(dst36 []byte)
• func RandBytes(n int) []byte
• func RandBytesTo(buf []byte)
• func RandInit()
• func RandString(n int) string
• func RuntimePkgFileLineByPC(pc uintptr) (file string, line int)
• func RuntimePkgFileLineStrByPC(pc uintptr) string
• func RuntimePkgIndex(file, funcName string) int
• func RuntimePkgPath() string
• func ToSnakeCase(s string) string
• func WaitForExit()
• func Workdir() string
• func WorkdirDSN() string
• func ZAtob(s string) []byte
• func ZBtoa(b []byte) string
• type AES
  • func NewAES(key16or32 string) (*AES, error)
  • func (c *AES) Decrypt(crypted []byte) ([]byte, error)
  • func (c *AES) DecryptFromBase64(crypted64 string) (string, error)
  • func (c *AES) Encrypt(data []byte) []byte
  • func (c *AES) EncryptToBase64(text string) string

Functions

func CallerFile

func CallerFile(deep int) (path string, line int)

CallerFile returns caller file path and line

func CallerFileName

func CallerFileName(deep int) string

CallerFileName returns name of caller file

func CallerFilePath

func CallerFilePath(deep int) string

CallerFilePath returns path to caller file

func ChangeFileExtension

func ChangeFileExtension(filename, targetExt string) string

ChangeFileExtension to

func ConstantTimeCompareStrings

func ConstantTimeCompareStrings(a, b string) bool

ConstantTimeCompareStrings uses zero alloc converting to bytes

func GeneratePEMCert

func GeneratePEMCert(bits int, organization string, maxAge time.Duration) (cert, key []byte, err error)

GeneratePEMCert self-signed

func GenerateTLSCert

func GenerateTLSCert(bits int, organization string, maxAge time.Duration) (*tls.Certificate, error)

GenerateTLSCert self-signed

func ImageJPGThumbnail

func ImageJPGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)

ImageJPGThumbnail converter

func ImageJPGThumbnailTo

func ImageJPGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error

ImageJPGThumbnailTo converter

func ImagePNGThumbnail

func ImagePNGThumbnail(src io.Reader, filename string, maxWidth, maxHeight uint) ([]byte, error)

ImagePNGThumbnail converter

func ImagePNGThumbnailTo

func ImagePNGThumbnailTo(src io.Reader, dst io.Writer, filename string, maxWidth, maxHeight uint) error

ImagePNGThumbnailTo converter

func ImageRead

func ImageRead(filename string, src io.Reader) (image.Image, error)

ImageRead to GO image.Image interface

func NewCloser

func NewCloser(f func() error) io.Closer

NewCloser for func

func NewDiscardLogger

func NewDiscardLogger() *log.Logger

NewDiscardLogger std

func Perm

func Perm(s []string, f func([]string))

Perm calls f with each permutation of s.

func PutUUID

func PutUUID(dst16 []byte)

func PutUUIDString

func PutUUIDString(dst36 []byte)

func RandBytes

func RandBytes(n int) []byte

RandBytes - fast token generator

func RandBytesTo

func RandBytesTo(buf []byte)

RandBytesTo - fast token generator

func RandInit

func RandInit()

RandInit for init rand seed from time

func RandString

func RandString(n int) string

RandString - fast token generator

func RuntimePkgFileLineByPC

func RuntimePkgFileLineByPC(pc uintptr) (file string, line int)

RuntimePkgFileLineByPC caller

func RuntimePkgFileLineStrByPC

func RuntimePkgFileLineStrByPC(pc uintptr) string

RuntimePkgFileLineStrByPC caller

func RuntimePkgIndex

func RuntimePkgIndex(file, funcName string) int

RuntimePkgIndex by caller

func RuntimePkgPath

func RuntimePkgPath() string

RuntimePkgPath ...

func ToSnakeCase

func ToSnakeCase(s string) string

ToSnakeCase convertion

func WaitForExit

func WaitForExit()

WaitForExit signal

func Workdir

func Workdir() string

Workdir returns executable working dir

func WorkdirDSN

func WorkdirDSN() string

WorkdirDSN returns executable working dir as DSN path

Example on windows: c/users/user/Desktop

func ZAtob

func ZAtob(s string) []byte

ZAtob - zero alloc convert string to bytes

func ZBtoa

func ZBtoa(b []byte) string

ZBtoa - zero alloc convert bytes to string

Types

type AES

type AES struct {
	// contains filtered or unexported fields
}

AES cryptor

func NewAES

func NewAES(key16or32 string) (*AES, error)

NewAES cryptor

func (*AES) Decrypt

func (c *AES) Decrypt(crypted []byte) ([]byte, error)

Decrypt data

func (*AES) DecryptFromBase64

func (c *AES) DecryptFromBase64(crypted64 string) (string, error)

DecryptFromBase64 data

func (*AES) Encrypt

func (c *AES) Encrypt(data []byte) []byte

Encrypt data

func (*AES) EncryptToBase64

func (c *AES) EncryptToBase64(text string) string

EncryptToBase64 data