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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Copyright 2021 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package rotate
import (
"context"
"fmt"
"net/http"
cjson "github.com/gibson042/canonicaljson-go"
"github.com/gorilla/mux"
"github.com/pingcap/errors"
"github.com/pingcap/fn"
logprinter "github.com/pingcap/tiup/pkg/logger/printer"
"github.com/pingcap/tiup/pkg/repository/v1manifest"
"github.com/pingcap/tiup/pkg/utils"
)
// ServeComponent starts a temp server for receiving component signatures from owner
func ServeComponent(addr string, owner *v1manifest.Owner, comp *v1manifest.Component) (*v1manifest.Manifest, error) {
r := mux.NewRouter()
uri := fmt.Sprintf("/rotate/%s", utils.Base62Tag())
r.Handle(uri, fn.Wrap(func() (*v1manifest.Manifest, error) {
return &v1manifest.Manifest{Signed: comp}, nil
})).Methods("GET")
sigCh := make(chan v1manifest.Signature)
r.Handle(uri, fn.Wrap(func(m *v1manifest.RawManifest) (*v1manifest.Manifest /* always nil */, error) {
for _, sig := range m.Signatures {
if err := verifyComponentSig(sig, owner, comp); err != nil {
return nil, err
}
sigCh <- sig
}
return nil, nil
})).Methods("POST")
srv := &http.Server{Addr: addr, Handler: r}
go func() {
if err := srv.ListenAndServe(); err != nil {
logprinter.Errorf("server closed: %s", err.Error())
}
close(sigCh)
}()
manifest := &v1manifest.Manifest{Signed: comp}
status := newStatusRender(owner.Keys, addr, uri)
defer status.stop()
SIGLOOP:
for sig := range sigCh {
for _, s := range manifest.Signatures {
if s.KeyID == sig.KeyID {
// Duplicate signature
continue SIGLOOP
}
}
manifest.Signatures = append(manifest.Signatures, sig)
status.render(manifest)
if len(manifest.Signatures) == len(owner.Keys) {
_ = srv.Shutdown(context.Background())
break
}
}
if len(manifest.Signatures) != len(owner.Keys) {
return nil, errors.New("no enough signature collected before server shutdown")
}
return manifest, nil
}
func verifyComponentSig(sig v1manifest.Signature, owner *v1manifest.Owner, comp *v1manifest.Component) error {
payload, err := cjson.Marshal(comp)
if err != nil {
return fn.ErrorWithStatusCode(errors.Annotate(err, "marshal component manifest"), http.StatusInternalServerError)
}
k := owner.Keys[sig.KeyID]
if k == nil {
// Received a signature signed by an invalid key
return fn.ErrorWithStatusCode(errors.New("the key is not valid"), http.StatusNotAcceptable)
}
if err := k.Verify(payload, sig.Sig); err != nil {
// Received an invalid signature
return fn.ErrorWithStatusCode(errors.New("the signature is not valid"), http.StatusNotAcceptable)
}
return nil
}
|
