blob: 7d4884af3dc4a6df6fdd0fc2423c55d76c2f2bf1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
package destination
import (
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
"encoding/hex"
"hash"
"io"
)
var hashFactories = map[string](func() hash.Hash){
"md5": md5.New,
"sha1": sha1.New,
"sha256": sha256.New,
"sha512": sha512.New,
}
type multiHash struct {
io.Writer
hashes map[string]hash.Hash
}
func newMultiHash() (m *multiHash) {
m = &multiHash{}
m.hashes = make(map[string]hash.Hash)
var writers []io.Writer
for hash, hashFactory := range hashFactories {
writer := hashFactory()
m.hashes[hash] = writer
writers = append(writers, writer)
}
m.Writer = io.MultiWriter(writers...)
return m
}
func (m *multiHash) finish() map[string]string {
h := make(map[string]string)
for hashName, hash := range m.hashes {
checksum := hash.Sum(nil)
h[hashName] = hex.EncodeToString(checksum)
}
return h
}
|
