utils

Documentation

Index

• Variables
• func CalcFileSHA256(f *os.File) (string, error)
• func CalcFileSHA256Bytes(f *os.File) ([]byte, error)
• func CalcMD5(data string) ([]byte, error)
• func CalcPathSHA256(fpath string) (string, error)
• func CalcPathSHA256Bytes(fpath string) ([]byte, error)
• func CalcSHA256(data []byte) (string, error)
• func CheckBucketName(name string) bool
• func CheckDomain(name string) error
• func CompareSlice(s1, s2 []byte) bool
• func DateTimeToUnix(t string) (int64, error)
• func EncodePublicKeyAsCessAccount(publicKey []byte) (string, error)
• func EncodePublicKeyAsSubstrateAccount(publicKey []byte) (string, error)
• func GetDirFreeSpace(dir string) (uint64, error)
• func GetRandomcode(length uint8) string
• func GetSysMemAvailable() (uint64, error)
• func GetUnixTimeAtZeroToday() int64
• func IsIPv4(ipAddr string) bool
• func IsIPv6(ipAddr string) bool
• func NumsToByteStr[T constraints.Unsigned](nums []T, opts map[string]bool) (string, error)
• func NumsToByteStrDefault[T constraints.Unsigned](nums []T) (string, error)
• func ParsingPublickey(address string) ([]byte, error)
• func RandSlice(slice interface{})
• func RandStr(n int) string
• func RecoverError(err interface{}) error
• func VerityAddress(address string, prefix []byte) error
• func WriteBufToFile(buf []byte, file string) error

Variables

var (
	SSPrefix        = []byte{0x53, 0x53, 0x35, 0x38, 0x50, 0x52, 0x45}
	SubstratePrefix = []byte{0x2a}
	CessPrefix      = []byte{0x50, 0xac}
)

Functions

func CalcFileSHA256

func CalcFileSHA256(f *os.File) (string, error)

CalcFileSHA256 is used to calculate the sha256 value of the file type.

func CalcFileSHA256Bytes

func CalcFileSHA256Bytes(f *os.File) ([]byte, error)

CalcFileSHA256 is used to calculate the sha256 value of the file type.

func CalcMD5

func CalcMD5(data string) ([]byte, error)

CalcSHA256 is used to calculate the sha256 value of the data.

func CalcPathSHA256

func CalcPathSHA256(fpath string) (string, error)

CalcPathSHA256 is used to calculate the sha256 value of a file with a given path.

func CalcPathSHA256Bytes

func CalcPathSHA256Bytes(fpath string) ([]byte, error)

CalcPathSHA256 is used to calculate the sha256 value of a file with a given path.

func CalcSHA256

func CalcSHA256(data []byte) (string, error)

CalcSHA256 is used to calculate the sha256 value of the data.

func CheckBucketName

func CheckBucketName(name string) bool

func CheckDomain

func CheckDomain(name string) error

CheckDomain returns an error if the domain name is not valid. See https://tools.ietf.org/html/rfc1034#section-3.5 and https://tools.ietf.org/html/rfc1123#section-2.

func CompareSlice

func CompareSlice(s1, s2 []byte) bool

func DateTimeToUnix

func DateTimeToUnix(t string) (int64, error)

func EncodePublicKeyAsCessAccount

func EncodePublicKeyAsCessAccount(publicKey []byte) (string, error)

func EncodePublicKeyAsSubstrateAccount

func EncodePublicKeyAsSubstrateAccount(publicKey []byte) (string, error)

func GetDirFreeSpace

func GetDirFreeSpace(dir string) (uint64, error)

func GetRandomcode

func GetRandomcode(length uint8) string

Generate random password

func GetSysMemAvailable

func GetSysMemAvailable() (uint64, error)

func GetUnixTimeAtZeroToday

func GetUnixTimeAtZeroToday() int64

func IsIPv4

func IsIPv4(ipAddr string) bool

IsIPv4 is used to determine whether ipAddr is an ipv4 address

func IsIPv6

func IsIPv6(ipAddr string) bool

IsIPv6 is used to determine whether ipAddr is an ipv6 address

func NumsToByteStr

func NumsToByteStr[T constraints.Unsigned](nums []T, opts map[string]bool) (string, error)

NumsToByteStr utility function takes an array of unsigned integers and output the corresponding byte string representing it. For example: `[18, 15]` to `120F`.

For `opts` in second parameter it is a map expecting:

• `space` bool: whether to add a space between each byte, default to `false`
• `prefix` bool: whether to add `0x` as the prefix, default to `false`
• `uppercase` bool: whether to display hexadecimal in upper case, default to `true`

If there is an integer larger than 255 in the array, an error is returned.

func NumsToByteStrDefault

func NumsToByteStrDefault[T constraints.Unsigned](nums []T) (string, error)

func ParsingPublickey

func ParsingPublickey(address string) ([]byte, error)

func RandSlice

func RandSlice(slice interface{})

func RandStr

func RandStr(n int) string

func RecoverError

func RecoverError(err interface{}) error

RecoverError is used to record the stack information of panic

func VerityAddress

func VerityAddress(address string, prefix []byte) error

func WriteBufToFile

func WriteBufToFile(buf []byte, file string) error