utils

Documentation

Index

• Constants
• func BcryptHash(text string, costs int) string
• func DecodeBase64(enc *base64.Encoding, text string) string
• func DecodeURI(decodedURI string) (string, error)
• func EncodeBase64(enc *base64.Encoding, text string) string
• func EncodeURI(uri string) string
• func Hash(hash hash.Hash, text string) string
• func Open(url string)
• func ParseTimestamp(date string) (time.Time, error)
• func Random(n int, a Source) string
• func RandomNumber(n int) string
• type AlphaNumeric
• type Alphabet
• type Complex
• type Numeric
• type Semaphore
  • func (s Semaphore) Acquire(n int)
  • func (s Semaphore) Release(n int)
• type Source

Constants

const ALPH = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

ALPH are alphabet letters in lower and upper case

const NUM = "0123456789"

NUM are numbers [0:10)

const SPECIAL = "!#$%&()*+,-./:;><?^_"

SPECIAL are special characters

Functions

func BcryptHash

func BcryptHash(text string, costs int) string

BcryptHash returns a string representation of a hashed text with given cost

func DecodeBase64

func DecodeBase64(enc *base64.Encoding, text string) string

DecodeBase64 decodes a base64 string to it's plain text representation

func DecodeURI

func DecodeURI(decodedURI string) (string, error)

DecodeURI does the inverse transformation of EncodeUri. Currently it's just a delegate for uri.QueryUnescape.

func EncodeBase64

func EncodeBase64(enc *base64.Encoding, text string) string

EncodeBase64 encodes a plain string to it's base64 representation

func EncodeURI

func EncodeURI(uri string) string

EncodeURI encodes a string so it can safely placed inside an URL.

func Hash

func Hash(hash hash.Hash, text string) string

Hash returns a string representation of a given hash function

func Open

func Open(url string)

Open opens the default system browser and points to the given url.

func ParseTimestamp

func ParseTimestamp(date string) (time.Time, error)

ParseTimestamp tries to parses a string into a time.Time format. The following cascade is used: 1. It tries to parse the string as current time millis. 2. It tries to parse the string as current time nanos. 3. It tries to parse the string as RFC 3339 time.

func Random

func Random(n int, a Source) string

Random generates a random string with a length of n. Each letter of the random string has it's source in the given source a

func RandomNumber

func RandomNumber(n int) string

RandomNumber generates a random number with a length of n. Each letter of the random string has it's source in the Numeric source, but the first number of the string is in a range of [1,10)

Types

type AlphaNumeric

type AlphaNumeric struct{}

AlphaNumeric is a source of letters and numbers: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789

type Alphabet

type Alphabet struct{}

Alphabet is a source of letters: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ

type Complex

type Complex struct{}

Complex is the same as the AlphaNumeric source but adds also special characters

type Numeric

type Numeric struct{}

Numeric is a default source of numbers in a range of [0,10).

type Semaphore

type Semaphore chan struct{}

Semaphore is a semaphore for acquiring and releasing resources.

func (Semaphore) Acquire

func (s Semaphore) Acquire(n int)

Acquire n resources.

func (Semaphore) Release

func (s Semaphore) Release(n int)

Release n resources.

type Source

type Source interface {
	// contains filtered or unexported methods
}

Source defines a string of letters used as source for a random string