mirror of https://github.com/miniflux/v2.git
39 lines
939 B
Go
39 lines
939 B
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
|
|
// Use of this source code is governed by the Apache 2.0
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package helper
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"crypto/sha256"
|
|
"encoding/base64"
|
|
"fmt"
|
|
)
|
|
|
|
// HashFromBytes returns a SHA-256 checksum of the input.
|
|
func HashFromBytes(value []byte) string {
|
|
sum := sha256.Sum256(value)
|
|
return fmt.Sprintf("%x", sum)
|
|
}
|
|
|
|
// Hash returns a SHA-256 checksum of a string.
|
|
func Hash(value string) string {
|
|
return HashFromBytes([]byte(value))
|
|
}
|
|
|
|
// GenerateRandomBytes returns random bytes.
|
|
func GenerateRandomBytes(size int) []byte {
|
|
b := make([]byte, size)
|
|
if _, err := rand.Read(b); err != nil {
|
|
panic(fmt.Errorf("Unable to generate random string: %v", err))
|
|
}
|
|
|
|
return b
|
|
}
|
|
|
|
// GenerateRandomString returns a random string.
|
|
func GenerateRandomString(size int) string {
|
|
return base64.URLEncoding.EncodeToString(GenerateRandomBytes(size))
|
|
}
|