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
|
package saasproxytoken
import (
"context"
"net/http"
"sync"
"time"
"golang.org/x/oauth2"
"google.golang.org/protobuf/types/known/emptypb"
"xeiaso.net/v4/internal/adminpb"
)
type remoteTokenSource struct {
curr *oauth2.Token
lock sync.Mutex
remoteURL string
httpClient *http.Client
ptc adminpb.Patreon
}
func (r *remoteTokenSource) fetchToken() (*oauth2.Token, error) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
resp, err := r.ptc.GetToken(ctx, &emptypb.Empty{})
if err != nil {
return nil, err
}
var tok oauth2.Token
tok.AccessToken = resp.AccessToken
tok.TokenType = resp.TokenType
tok.RefreshToken = resp.RefreshToken
tok.Expiry = resp.Expiry.AsTime()
return &tok, nil
}
func (r *remoteTokenSource) Token() (*oauth2.Token, error) {
r.lock.Lock()
defer r.lock.Unlock()
if r.curr == nil {
tok, err := r.fetchToken()
if err != nil {
return nil, err
}
r.curr = tok
return tok, nil
}
if r.curr.Expiry.Before(time.Now()) {
tok, err := r.fetchToken()
if err != nil {
return nil, err
}
r.curr = tok
}
return r.curr, nil
}
func RemoteTokenSource(remoteURL string, httpClient *http.Client) oauth2.TokenSource {
return &remoteTokenSource{
remoteURL: remoteURL,
httpClient: httpClient,
ptc: adminpb.NewPatreonProtobufClient(remoteURL, httpClient),
}
}
|
