-
Notifications
You must be signed in to change notification settings - Fork 156
/
chain.go
57 lines (48 loc) · 1.62 KB
/
chain.go
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
49
50
51
52
53
54
55
56
57
// Copyright 2019 Anapaya Systems
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cert
import (
"encoding/json"
"github.com/scionproto/scion/go/lib/common"
)
// ErrInvalidChainLength indicates an invalid chain length.
const ErrInvalidChainLength common.ErrMsg = "invalid chain length"
// Chain represents the certificate chain.
type Chain struct {
// Issuer contains the signed issuer certificate.
Issuer SignedIssuer
// AS contains the signed AS certificate.
AS SignedAS
}
// ParseChain parses the raw chain.
func ParseChain(raw []byte) (Chain, error) {
var chain Chain
err := json.Unmarshal(raw, &chain)
return chain, err
}
// UnmarshalJSON unpacks the chain formatted as a json array.
func (c *Chain) UnmarshalJSON(b []byte) error {
tmp := []interface{}{&c.Issuer, &c.AS}
if err := json.Unmarshal(b, &tmp); err != nil {
return err
}
if len(tmp) != 2 {
return common.NewBasicError(ErrInvalidChainLength, nil, "expected", 2, "actual", len(tmp))
}
return nil
}
// MarshalJSON packs the chain as a json array.
func (c Chain) MarshalJSON() ([]byte, error) {
return json.Marshal([]interface{}{&c.Issuer, c.AS})
}