mirror of
https://github.com/gravitational/teleport.git
synced 2026-10-31 03:27:49 +08:00
122 lines
3.0 KiB
Go
122 lines
3.0 KiB
Go
/*
|
|
* Teleport
|
|
* Copyright (C) 2023 Gravitational, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package gitlab
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/coreos/go-oidc"
|
|
"github.com/gravitational/trace"
|
|
"github.com/jonboulle/clockwork"
|
|
|
|
"github.com/gravitational/teleport/api/types"
|
|
"github.com/gravitational/teleport/lib/jwt"
|
|
"github.com/gravitational/teleport/lib/services"
|
|
)
|
|
|
|
type clusterNameGetter interface {
|
|
GetClusterName(opts ...services.MarshalOption) (types.ClusterName, error)
|
|
}
|
|
|
|
type IDTokenValidatorConfig struct {
|
|
// Clock is used by the validator when checking expiry and issuer times of
|
|
// tokens. If omitted, a real clock will be used.
|
|
Clock clockwork.Clock
|
|
// ClusterNameGetter is used to get the cluster name in order to identify
|
|
// the correct audience for the token.
|
|
ClusterNameGetter clusterNameGetter
|
|
// insecure configures the validator to use HTTP rather than HTTPS. This
|
|
// is not exported as this is only used in the test for now.
|
|
insecure bool
|
|
}
|
|
|
|
type IDTokenValidator struct {
|
|
IDTokenValidatorConfig
|
|
}
|
|
|
|
func NewIDTokenValidator(
|
|
cfg IDTokenValidatorConfig,
|
|
) (*IDTokenValidator, error) {
|
|
if cfg.Clock == nil {
|
|
cfg.Clock = clockwork.NewRealClock()
|
|
}
|
|
|
|
if cfg.ClusterNameGetter == nil {
|
|
return nil, trace.BadParameter(
|
|
"ClusterNameGetter must be configured",
|
|
)
|
|
}
|
|
|
|
return &IDTokenValidator{
|
|
IDTokenValidatorConfig: cfg,
|
|
}, nil
|
|
}
|
|
|
|
func (id *IDTokenValidator) issuerURL(domain string) string {
|
|
scheme := "https"
|
|
if id.insecure {
|
|
scheme = "http"
|
|
}
|
|
|
|
return fmt.Sprintf("%s://%s", scheme, domain)
|
|
}
|
|
|
|
func (id *IDTokenValidator) Validate(
|
|
ctx context.Context, domain string, token string,
|
|
) (*IDTokenClaims, error) {
|
|
p, err := oidc.NewProvider(
|
|
ctx,
|
|
id.issuerURL(domain),
|
|
)
|
|
if err != nil {
|
|
return nil, trace.Wrap(err)
|
|
}
|
|
|
|
clusterNameResource, err := id.ClusterNameGetter.GetClusterName()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
verifier := p.Verifier(&oidc.Config{
|
|
ClientID: clusterNameResource.GetClusterName(),
|
|
Now: id.Clock.Now,
|
|
})
|
|
|
|
idToken, err := verifier.Verify(ctx, token)
|
|
if err != nil {
|
|
return nil, trace.Wrap(err)
|
|
}
|
|
|
|
// `go-oidc` does not implement not before check, so we need to manually
|
|
// perform this
|
|
if err := jwt.CheckNotBefore(
|
|
id.Clock.Now(), time.Minute*2, idToken,
|
|
); err != nil {
|
|
return nil, trace.Wrap(err)
|
|
}
|
|
|
|
claims := IDTokenClaims{}
|
|
if err := idToken.Claims(&claims); err != nil {
|
|
return nil, trace.Wrap(err)
|
|
}
|
|
return &claims, nil
|
|
}
|