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
|
package auth
import (
"context"
"time"
grpcmwauth "github.com/grpc-ecosystem/go-grpc-middleware/auth"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
gitalyauth "gitlab.com/gitlab-org/gitaly/v14/auth"
gitalycfgauth "gitlab.com/gitlab-org/gitaly/internal/gitaly/config/auth"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var authCount = promauto.NewCounterVec(
prometheus.CounterOpts{
Name: "gitaly_authentications_total",
Help: "Counts of of Gitaly request authentication attempts",
},
[]string{"enforced", "status"},
)
// StreamServerInterceptor checks for Gitaly bearer tokens.
func StreamServerInterceptor(conf gitalycfgauth.Config) grpc.StreamServerInterceptor {
return grpcmwauth.StreamServerInterceptor(checkFunc(conf))
}
// UnaryServerInterceptor checks for Gitaly bearer tokens.
func UnaryServerInterceptor(conf gitalycfgauth.Config) grpc.UnaryServerInterceptor {
return grpcmwauth.UnaryServerInterceptor(checkFunc(conf))
}
func checkFunc(conf gitalycfgauth.Config) func(ctx context.Context) (context.Context, error) {
return func(ctx context.Context) (context.Context, error) {
if len(conf.Token) == 0 {
countStatus("server disabled authentication", conf.Transitioning).Inc()
return ctx, nil
}
err := gitalyauth.CheckToken(ctx, conf.Token, time.Now())
switch status.Code(err) {
case codes.OK:
countStatus(okLabel(conf.Transitioning), conf.Transitioning).Inc()
case codes.Unauthenticated:
countStatus("unauthenticated", conf.Transitioning).Inc()
case codes.PermissionDenied:
countStatus("denied", conf.Transitioning).Inc()
default:
countStatus("invalid", conf.Transitioning).Inc()
}
if conf.Transitioning {
err = nil
}
return ctx, err
}
}
func okLabel(transitioning bool) string {
if transitioning {
// This special value is an extra warning sign to administrators that
// authentication is currently not enforced.
return "would be ok"
}
return "ok"
}
func countStatus(status string, transitioning bool) prometheus.Counter {
enforced := "true"
if transitioning {
enforced = "false"
}
return authCount.WithLabelValues(enforced, status)
}
|
