-
Notifications
You must be signed in to change notification settings - Fork 458
/
metadata.go
47 lines (36 loc) · 1.21 KB
/
metadata.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
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package authz
import (
"context"
"google.golang.org/grpc/metadata"
"github.com/siderolabs/talos/pkg/machinery/constants"
"github.com/siderolabs/talos/pkg/machinery/role"
)
// mdKey is used to store roles in gRPC metadata.
// Should be used only in this file.
const mdKey = constants.APIAuthzRoleMetadataKey
// SetMetadata sets given roles in gRPC metadata.
func SetMetadata(md metadata.MD, roles role.Set) {
md.Set(mdKey, roles.Strings()...)
}
// getFromMetadata returns roles extracted from gRPC metadata.
func getFromMetadata(ctx context.Context, logf func(format string, v ...interface{})) (role.Set, bool) {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
panic("no request metadata")
}
strings := md.Get(mdKey)
if len(strings) == 0 {
if logf != nil {
logf("no roles in metadata")
}
return role.Zero, false
}
roles, unknownRoles := role.Parse(strings)
if logf != nil {
logf("parsed metadata %v as %v (unknownRoles = %v)", strings, roles.Strings(), unknownRoles)
}
return roles, true
}