574 lines
20 KiB
Go
574 lines
20 KiB
Go
/*
|
|
Copyright 2023 The Kubernetes Authors.
|
|
|
|
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,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package oidc
|
|
|
|
import (
|
|
"context"
|
|
"crypto/rand"
|
|
"crypto/rsa"
|
|
"crypto/tls"
|
|
"crypto/x509"
|
|
"encoding/json"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
rbacv1 "k8s.io/api/rbac/v1"
|
|
apierrors "k8s.io/apimachinery/pkg/api/errors"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apiserver/pkg/features"
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
"k8s.io/client-go/kubernetes"
|
|
_ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
|
|
"k8s.io/client-go/rest"
|
|
"k8s.io/client-go/tools/clientcmd/api"
|
|
certutil "k8s.io/client-go/util/cert"
|
|
featuregatetesting "k8s.io/component-base/featuregate/testing"
|
|
kubeapiserverapptesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
|
|
"k8s.io/kubernetes/pkg/apis/rbac"
|
|
"k8s.io/kubernetes/test/integration/framework"
|
|
utilsoidc "k8s.io/kubernetes/test/utils/oidc"
|
|
utilsnet "k8s.io/utils/net"
|
|
)
|
|
|
|
const (
|
|
defaultNamespace = "default"
|
|
defaultOIDCClientID = "f403b682-603f-4ec9-b3e4-cf111ef36f7c"
|
|
defaultOIDCClaimedUsername = "john_doe"
|
|
defaultOIDCUsernamePrefix = "k8s-"
|
|
defaultRBACRoleName = "developer-role"
|
|
defaultRBACRoleBindingName = "developer-role-binding"
|
|
|
|
defaultStubRefreshToken = "_fake_refresh_token_"
|
|
defaultStubAccessToken = "_fake_access_token_"
|
|
|
|
rsaKeyBitSize = 2048
|
|
)
|
|
|
|
var (
|
|
defaultRole = &rbacv1.Role{
|
|
TypeMeta: metav1.TypeMeta{APIVersion: "rbac.authorization.k8s.io/v1", Kind: "Role"},
|
|
ObjectMeta: metav1.ObjectMeta{Name: defaultRBACRoleName},
|
|
Rules: []rbacv1.PolicyRule{
|
|
{
|
|
Verbs: []string{"list"},
|
|
Resources: []string{"pods"},
|
|
APIGroups: []string{""},
|
|
ResourceNames: []string{},
|
|
},
|
|
},
|
|
}
|
|
defaultRoleBinding = &rbacv1.RoleBinding{
|
|
TypeMeta: metav1.TypeMeta{APIVersion: "rbac.authorization.k8s.io/v1", Kind: "RoleBinding"},
|
|
ObjectMeta: metav1.ObjectMeta{Name: defaultRBACRoleBindingName},
|
|
Subjects: []rbacv1.Subject{
|
|
{
|
|
APIGroup: rbac.GroupName,
|
|
Kind: rbacv1.UserKind,
|
|
Name: defaultOIDCUsernamePrefix + defaultOIDCClaimedUsername,
|
|
},
|
|
},
|
|
RoleRef: rbacv1.RoleRef{
|
|
APIGroup: rbac.GroupName,
|
|
Kind: "Role",
|
|
Name: defaultRBACRoleName,
|
|
},
|
|
}
|
|
)
|
|
|
|
func TestOIDC(t *testing.T) {
|
|
t.Log("Testing OIDC authenticator with --oidc-* flags")
|
|
runTests(t, false)
|
|
}
|
|
|
|
func TestStructuredAuthenticationConfig(t *testing.T) {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.StructuredAuthenticationConfiguration, true)()
|
|
|
|
t.Log("Testing OIDC authenticator with authentication config")
|
|
runTests(t, true)
|
|
}
|
|
|
|
func runTests(t *testing.T, useAuthenticationConfig bool) {
|
|
var tests = []struct {
|
|
name string
|
|
configureInfrastructure func(t *testing.T, useAuthenticationConfig bool) (
|
|
oidcServer *utilsoidc.TestServer,
|
|
apiServer *kubeapiserverapptesting.TestServer,
|
|
signingPrivateKey *rsa.PrivateKey,
|
|
caCertContent []byte,
|
|
caFilePath string,
|
|
)
|
|
configureOIDCServerBehaviour func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey)
|
|
configureClient func(
|
|
t *testing.T,
|
|
restCfg *rest.Config,
|
|
caCert []byte,
|
|
certPath,
|
|
oidcServerURL,
|
|
oidcServerTokenURL string,
|
|
) *kubernetes.Clientset
|
|
asserErrFn func(t *testing.T, errorToCheck error)
|
|
}{
|
|
{
|
|
name: "ID token is ok",
|
|
configureInfrastructure: configureTestInfrastructure,
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
idTokenLifetime := time.Second * 1200
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(1).DoAndReturn(utilsoidc.TokenHandlerBehaviourReturningPredefinedJWT(
|
|
t,
|
|
signingPrivateKey,
|
|
oidcServer.URL(),
|
|
defaultOIDCClientID,
|
|
defaultOIDCClaimedUsername,
|
|
defaultStubAccessToken,
|
|
defaultStubRefreshToken,
|
|
time.Now().Add(idTokenLifetime).Unix(),
|
|
))
|
|
},
|
|
configureClient: configureClientFetchingOIDCCredentials,
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
assert.NoError(t, errorToCheck)
|
|
},
|
|
},
|
|
{
|
|
name: "ID token is expired",
|
|
configureInfrastructure: configureTestInfrastructure,
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
configureOIDCServerToReturnExpiredIDToken(t, 2, oidcServer, signingPrivateKey)
|
|
},
|
|
configureClient: configureClientFetchingOIDCCredentials,
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
assert.True(t, apierrors.IsUnauthorized(errorToCheck), errorToCheck)
|
|
},
|
|
},
|
|
{
|
|
name: "wrong client ID",
|
|
configureInfrastructure: configureTestInfrastructure,
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, _ *rsa.PrivateKey) {
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(2).Return(utilsoidc.Token{}, utilsoidc.ErrBadClientID)
|
|
},
|
|
configureClient: configureClientWithEmptyIDToken,
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
urlError, ok := errorToCheck.(*url.Error)
|
|
require.True(t, ok)
|
|
assert.Equal(
|
|
t,
|
|
"failed to refresh token: oauth2: cannot fetch token: 400 Bad Request\nResponse: client ID is bad\n",
|
|
urlError.Err.Error(),
|
|
)
|
|
},
|
|
},
|
|
{
|
|
name: "client has wrong CA",
|
|
configureInfrastructure: configureTestInfrastructure,
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, _ *rsa.PrivateKey) {},
|
|
configureClient: func(t *testing.T, restCfg *rest.Config, caCert []byte, _, oidcServerURL, oidcServerTokenURL string) *kubernetes.Clientset {
|
|
tempDir := t.TempDir()
|
|
certFilePath := filepath.Join(tempDir, "localhost_127.0.0.1_.crt")
|
|
|
|
_, _, wantErr := certutil.GenerateSelfSignedCertKeyWithFixtures("localhost", []net.IP{utilsnet.ParseIPSloppy("127.0.0.1")}, nil, tempDir)
|
|
require.NoError(t, wantErr)
|
|
|
|
return configureClientWithEmptyIDToken(t, restCfg, caCert, certFilePath, oidcServerURL, oidcServerTokenURL)
|
|
},
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
expectedErr := new(x509.UnknownAuthorityError)
|
|
assert.ErrorAs(t, errorToCheck, expectedErr)
|
|
},
|
|
},
|
|
{
|
|
name: "refresh flow does not return ID Token",
|
|
configureInfrastructure: configureTestInfrastructure,
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
configureOIDCServerToReturnExpiredIDToken(t, 1, oidcServer, signingPrivateKey)
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(1).Return(utilsoidc.Token{
|
|
IDToken: "",
|
|
AccessToken: defaultStubAccessToken,
|
|
RefreshToken: defaultStubRefreshToken,
|
|
ExpiresIn: time.Now().Add(time.Second * 1200).Unix(),
|
|
}, nil)
|
|
},
|
|
configureClient: configureClientFetchingOIDCCredentials,
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
expectedError := new(apierrors.StatusError)
|
|
assert.ErrorAs(t, errorToCheck, &expectedError)
|
|
assert.Equal(
|
|
t,
|
|
`pods is forbidden: User "system:anonymous" cannot list resource "pods" in API group "" in the namespace "default"`,
|
|
errorToCheck.Error(),
|
|
)
|
|
},
|
|
},
|
|
{
|
|
name: "ID token signature can not be verified due to wrong JWKs",
|
|
configureInfrastructure: func(t *testing.T, useAuthenticationConfig bool) (
|
|
oidcServer *utilsoidc.TestServer,
|
|
apiServer *kubeapiserverapptesting.TestServer,
|
|
signingPrivateKey *rsa.PrivateKey,
|
|
caCertContent []byte,
|
|
caFilePath string,
|
|
) {
|
|
caCertContent, _, caFilePath, caKeyFilePath := generateCert(t)
|
|
|
|
signingPrivateKey, wantErr := rsa.GenerateKey(rand.Reader, rsaKeyBitSize)
|
|
require.NoError(t, wantErr)
|
|
|
|
oidcServer = utilsoidc.BuildAndRunTestServer(t, caFilePath, caKeyFilePath)
|
|
|
|
if useAuthenticationConfig {
|
|
authenticationConfig := generateAuthenticationConfig(t, oidcServer.URL(), defaultOIDCClientID, string(caCertContent), defaultOIDCUsernamePrefix)
|
|
apiServer = startTestAPIServerForOIDC(t, "", "", "", authenticationConfig)
|
|
} else {
|
|
apiServer = startTestAPIServerForOIDC(t, oidcServer.URL(), defaultOIDCClientID, caFilePath, "")
|
|
}
|
|
|
|
adminClient := kubernetes.NewForConfigOrDie(apiServer.ClientConfig)
|
|
configureRBAC(t, adminClient, defaultRole, defaultRoleBinding)
|
|
|
|
anotherSigningPrivateKey, wantErr := rsa.GenerateKey(rand.Reader, rsaKeyBitSize)
|
|
require.NoError(t, wantErr)
|
|
oidcServer.JwksHandler().EXPECT().KeySet().AnyTimes().DoAndReturn(utilsoidc.DefaultJwksHandlerBehaviour(t, &anotherSigningPrivateKey.PublicKey))
|
|
|
|
return oidcServer, apiServer, signingPrivateKey, caCertContent, caFilePath
|
|
},
|
|
configureOIDCServerBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(1).DoAndReturn(utilsoidc.TokenHandlerBehaviourReturningPredefinedJWT(
|
|
t,
|
|
signingPrivateKey,
|
|
oidcServer.URL(),
|
|
defaultOIDCClientID,
|
|
defaultOIDCClaimedUsername,
|
|
defaultStubAccessToken,
|
|
defaultStubRefreshToken,
|
|
time.Now().Add(time.Second*1200).Unix(),
|
|
))
|
|
},
|
|
configureClient: configureClientFetchingOIDCCredentials,
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
assert.True(t, apierrors.IsUnauthorized(errorToCheck), errorToCheck)
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
oidcServer, apiServer, signingPrivateKey, caCert, certPath := tt.configureInfrastructure(t, useAuthenticationConfig)
|
|
|
|
tt.configureOIDCServerBehaviour(t, oidcServer, signingPrivateKey)
|
|
|
|
tokenURL, err := oidcServer.TokenURL()
|
|
require.NoError(t, err)
|
|
|
|
client := tt.configureClient(t, apiServer.ClientConfig, caCert, certPath, oidcServer.URL(), tokenURL)
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second*30)
|
|
defer cancel()
|
|
|
|
_, err = client.CoreV1().Pods(defaultNamespace).List(ctx, metav1.ListOptions{})
|
|
|
|
tt.asserErrFn(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestUpdatingRefreshTokenInCaseOfExpiredIDToken(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
configureUpdatingTokenBehaviour func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey)
|
|
asserErrFn func(t *testing.T, errorToCheck error)
|
|
}{
|
|
{
|
|
name: "cache returns stale client if refresh token is not updated in config",
|
|
configureUpdatingTokenBehaviour: func(t *testing.T, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(1).DoAndReturn(utilsoidc.TokenHandlerBehaviourReturningPredefinedJWT(
|
|
t,
|
|
signingPrivateKey,
|
|
oidcServer.URL(),
|
|
defaultOIDCClientID,
|
|
defaultOIDCClaimedUsername,
|
|
defaultStubAccessToken,
|
|
defaultStubRefreshToken,
|
|
time.Now().Add(time.Second*1200).Unix(),
|
|
))
|
|
configureOIDCServerToReturnExpiredRefreshTokenErrorOnTryingToUpdateIDToken(oidcServer)
|
|
},
|
|
asserErrFn: func(t *testing.T, errorToCheck error) {
|
|
urlError, ok := errorToCheck.(*url.Error)
|
|
require.True(t, ok)
|
|
assert.Equal(
|
|
t,
|
|
"failed to refresh token: oauth2: cannot fetch token: 400 Bad Request\nResponse: refresh token is expired\n",
|
|
urlError.Err.Error(),
|
|
)
|
|
},
|
|
},
|
|
}
|
|
|
|
oidcServer, apiServer, signingPrivateKey, caCert, certPath := configureTestInfrastructure(t, false)
|
|
|
|
tokenURL, err := oidcServer.TokenURL()
|
|
require.NoError(t, err)
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
expiredIDToken, stubRefreshToken := fetchExpiredToken(t, oidcServer, caCert, signingPrivateKey)
|
|
clientConfig := configureClientConfigForOIDC(t, apiServer.ClientConfig, defaultOIDCClientID, certPath, expiredIDToken, stubRefreshToken, oidcServer.URL())
|
|
expiredClient := kubernetes.NewForConfigOrDie(clientConfig)
|
|
configureOIDCServerToReturnExpiredRefreshTokenErrorOnTryingToUpdateIDToken(oidcServer)
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second*30)
|
|
defer cancel()
|
|
|
|
_, err = expiredClient.CoreV1().Pods(defaultNamespace).List(ctx, metav1.ListOptions{})
|
|
assert.Error(t, err)
|
|
|
|
tt.configureUpdatingTokenBehaviour(t, oidcServer, signingPrivateKey)
|
|
idToken, stubRefreshToken := fetchOIDCCredentials(t, tokenURL, caCert)
|
|
clientConfig = configureClientConfigForOIDC(t, apiServer.ClientConfig, defaultOIDCClientID, certPath, idToken, stubRefreshToken, oidcServer.URL())
|
|
expectedOkClient := kubernetes.NewForConfigOrDie(clientConfig)
|
|
_, err = expectedOkClient.CoreV1().Pods(defaultNamespace).List(ctx, metav1.ListOptions{})
|
|
|
|
tt.asserErrFn(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func configureTestInfrastructure(t *testing.T, useAuthenticationConfig bool) (
|
|
oidcServer *utilsoidc.TestServer,
|
|
apiServer *kubeapiserverapptesting.TestServer,
|
|
signingPrivateKey *rsa.PrivateKey,
|
|
caCertContent []byte,
|
|
caFilePath string,
|
|
) {
|
|
t.Helper()
|
|
|
|
caCertContent, _, caFilePath, caKeyFilePath := generateCert(t)
|
|
|
|
signingPrivateKey, err := rsa.GenerateKey(rand.Reader, rsaKeyBitSize)
|
|
require.NoError(t, err)
|
|
|
|
oidcServer = utilsoidc.BuildAndRunTestServer(t, caFilePath, caKeyFilePath)
|
|
|
|
if useAuthenticationConfig {
|
|
authenticationConfig := generateAuthenticationConfig(t, oidcServer.URL(), defaultOIDCClientID, string(caCertContent), defaultOIDCUsernamePrefix)
|
|
apiServer = startTestAPIServerForOIDC(t, "", "", "", authenticationConfig)
|
|
} else {
|
|
apiServer = startTestAPIServerForOIDC(t, oidcServer.URL(), defaultOIDCClientID, caFilePath, "")
|
|
}
|
|
|
|
oidcServer.JwksHandler().EXPECT().KeySet().AnyTimes().DoAndReturn(utilsoidc.DefaultJwksHandlerBehaviour(t, &signingPrivateKey.PublicKey))
|
|
|
|
adminClient := kubernetes.NewForConfigOrDie(apiServer.ClientConfig)
|
|
configureRBAC(t, adminClient, defaultRole, defaultRoleBinding)
|
|
|
|
return oidcServer, apiServer, signingPrivateKey, caCertContent, caFilePath
|
|
}
|
|
|
|
func configureClientFetchingOIDCCredentials(t *testing.T, restCfg *rest.Config, caCert []byte, certPath, oidcServerURL, oidcServerTokenURL string) *kubernetes.Clientset {
|
|
idToken, stubRefreshToken := fetchOIDCCredentials(t, oidcServerTokenURL, caCert)
|
|
clientConfig := configureClientConfigForOIDC(t, restCfg, defaultOIDCClientID, certPath, idToken, stubRefreshToken, oidcServerURL)
|
|
return kubernetes.NewForConfigOrDie(clientConfig)
|
|
}
|
|
|
|
func configureClientWithEmptyIDToken(t *testing.T, restCfg *rest.Config, _ []byte, certPath, oidcServerURL, _ string) *kubernetes.Clientset {
|
|
emptyIDToken, stubRefreshToken := "", defaultStubRefreshToken
|
|
clientConfig := configureClientConfigForOIDC(t, restCfg, defaultOIDCClientID, certPath, emptyIDToken, stubRefreshToken, oidcServerURL)
|
|
return kubernetes.NewForConfigOrDie(clientConfig)
|
|
}
|
|
|
|
func configureRBAC(t *testing.T, clientset *kubernetes.Clientset, role *rbacv1.Role, binding *rbacv1.RoleBinding) {
|
|
t.Helper()
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second*30)
|
|
defer cancel()
|
|
|
|
_, err := clientset.RbacV1().Roles(defaultNamespace).Create(ctx, role, metav1.CreateOptions{})
|
|
require.NoError(t, err)
|
|
_, err = clientset.RbacV1().RoleBindings(defaultNamespace).Create(ctx, binding, metav1.CreateOptions{})
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func configureClientConfigForOIDC(t *testing.T, config *rest.Config, clientID, caFilePath, idToken, refreshToken, oidcServerURL string) *rest.Config {
|
|
t.Helper()
|
|
cfg := rest.AnonymousClientConfig(config)
|
|
cfg.AuthProvider = &api.AuthProviderConfig{
|
|
Name: "oidc",
|
|
Config: map[string]string{
|
|
"client-id": clientID,
|
|
"id-token": idToken,
|
|
"idp-issuer-url": oidcServerURL,
|
|
"idp-certificate-authority": caFilePath,
|
|
"refresh-token": refreshToken,
|
|
},
|
|
}
|
|
|
|
return cfg
|
|
}
|
|
|
|
func startTestAPIServerForOIDC(t *testing.T, oidcURL, oidcClientID, oidcCAFilePath, authenticationConfigYAML string) *kubeapiserverapptesting.TestServer {
|
|
t.Helper()
|
|
|
|
var customFlags []string
|
|
if authenticationConfigYAML != "" {
|
|
customFlags = []string{fmt.Sprintf("--authentication-config=%s", writeTempFile(t, authenticationConfigYAML))}
|
|
} else {
|
|
customFlags = []string{
|
|
fmt.Sprintf("--oidc-issuer-url=%s", oidcURL),
|
|
fmt.Sprintf("--oidc-client-id=%s", oidcClientID),
|
|
fmt.Sprintf("--oidc-ca-file=%s", oidcCAFilePath),
|
|
fmt.Sprintf("--oidc-username-prefix=%s", defaultOIDCUsernamePrefix),
|
|
}
|
|
}
|
|
customFlags = append(customFlags, "--authorization-mode=RBAC")
|
|
|
|
server, err := kubeapiserverapptesting.StartTestServer(
|
|
t,
|
|
kubeapiserverapptesting.NewDefaultTestServerOptions(),
|
|
customFlags,
|
|
framework.SharedEtcd(),
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
t.Cleanup(server.TearDownFn)
|
|
|
|
return &server
|
|
}
|
|
|
|
func fetchOIDCCredentials(t *testing.T, oidcTokenURL string, caCertContent []byte) (idToken, refreshToken string) {
|
|
t.Helper()
|
|
|
|
req, err := http.NewRequest(http.MethodGet, oidcTokenURL, http.NoBody)
|
|
require.NoError(t, err)
|
|
|
|
caPool := x509.NewCertPool()
|
|
ok := caPool.AppendCertsFromPEM(caCertContent)
|
|
require.True(t, ok)
|
|
|
|
client := http.Client{Transport: &http.Transport{
|
|
TLSClientConfig: &tls.Config{
|
|
RootCAs: caPool,
|
|
},
|
|
}}
|
|
|
|
token := new(utilsoidc.Token)
|
|
|
|
resp, err := client.Do(req)
|
|
require.NoError(t, err)
|
|
|
|
err = json.NewDecoder(resp.Body).Decode(token)
|
|
require.NoError(t, err)
|
|
|
|
return token.IDToken, token.RefreshToken
|
|
}
|
|
|
|
func fetchExpiredToken(t *testing.T, oidcServer *utilsoidc.TestServer, caCertContent []byte, signingPrivateKey *rsa.PrivateKey) (expiredToken, stubRefreshToken string) {
|
|
t.Helper()
|
|
|
|
tokenURL, err := oidcServer.TokenURL()
|
|
require.NoError(t, err)
|
|
|
|
configureOIDCServerToReturnExpiredIDToken(t, 1, oidcServer, signingPrivateKey)
|
|
expiredToken, stubRefreshToken = fetchOIDCCredentials(t, tokenURL, caCertContent)
|
|
|
|
return expiredToken, stubRefreshToken
|
|
}
|
|
|
|
func configureOIDCServerToReturnExpiredIDToken(t *testing.T, returningExpiredTokenTimes int, oidcServer *utilsoidc.TestServer, signingPrivateKey *rsa.PrivateKey) {
|
|
t.Helper()
|
|
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(returningExpiredTokenTimes).DoAndReturn(func() (utilsoidc.Token, error) {
|
|
token, err := utilsoidc.TokenHandlerBehaviourReturningPredefinedJWT(
|
|
t,
|
|
signingPrivateKey,
|
|
oidcServer.URL(),
|
|
defaultOIDCClientID,
|
|
defaultOIDCClaimedUsername,
|
|
defaultStubAccessToken,
|
|
defaultStubRefreshToken,
|
|
time.Now().Add(-time.Millisecond).Unix(),
|
|
)()
|
|
return token, err
|
|
})
|
|
}
|
|
|
|
func configureOIDCServerToReturnExpiredRefreshTokenErrorOnTryingToUpdateIDToken(oidcServer *utilsoidc.TestServer) {
|
|
oidcServer.TokenHandler().EXPECT().Token().Times(2).Return(utilsoidc.Token{}, utilsoidc.ErrRefreshTokenExpired)
|
|
}
|
|
|
|
func generateCert(t *testing.T) (cert, key []byte, certFilePath, keyFilePath string) {
|
|
t.Helper()
|
|
|
|
tempDir := t.TempDir()
|
|
certFilePath = filepath.Join(tempDir, "localhost_127.0.0.1_.crt")
|
|
keyFilePath = filepath.Join(tempDir, "localhost_127.0.0.1_.key")
|
|
|
|
cert, key, err := certutil.GenerateSelfSignedCertKeyWithFixtures("localhost", []net.IP{utilsnet.ParseIPSloppy("127.0.0.1")}, nil, tempDir)
|
|
require.NoError(t, err)
|
|
|
|
return cert, key, certFilePath, keyFilePath
|
|
}
|
|
|
|
func writeTempFile(t *testing.T, content string) string {
|
|
t.Helper()
|
|
file, err := os.CreateTemp("", "oidc-test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
t.Cleanup(func() {
|
|
if err := os.Remove(file.Name()); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
})
|
|
if err := os.WriteFile(file.Name(), []byte(content), 0600); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return file.Name()
|
|
}
|
|
|
|
func generateAuthenticationConfig(t *testing.T, issuerURL, clientID, caCert, usernamePrefix string) string {
|
|
t.Helper()
|
|
|
|
// Indent the certificate authority to match the format of the generated
|
|
// authentication config.
|
|
caCert = strings.ReplaceAll(caCert, "\n", "\n ")
|
|
|
|
return fmt.Sprintf(`
|
|
apiVersion: apiserver.config.k8s.io/v1alpha1
|
|
kind: AuthenticationConfiguration
|
|
jwt:
|
|
- issuer:
|
|
url: %s
|
|
audiences:
|
|
- %s
|
|
certificateAuthority: |
|
|
%s
|
|
claimMappings:
|
|
username:
|
|
claim: sub
|
|
prefix: %s
|
|
`, issuerURL, clientID, string(caCert), usernamePrefix)
|
|
}
|