280 lines
8.3 KiB
Go
280 lines
8.3 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package oidc
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import (
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"fmt"
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"net/http/httptest"
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"os"
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"path"
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"reflect"
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"strings"
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"testing"
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"time"
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"github.com/coreos/go-oidc/jose"
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"github.com/coreos/go-oidc/oidc"
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"k8s.io/kubernetes/pkg/auth/user"
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oidctesting "k8s.io/kubernetes/plugin/pkg/auth/authenticator/token/oidc/testing"
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)
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func generateToken(t *testing.T, op *oidctesting.OIDCProvider, iss, sub, aud string, usernameClaim, value, groupsClaim string, groups []string, iat, exp time.Time) string {
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signer := op.PrivKey.Signer()
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claims := oidc.NewClaims(iss, sub, aud, iat, exp)
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claims.Add(usernameClaim, value)
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if groups != nil && groupsClaim != "" {
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claims.Add(groupsClaim, groups)
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}
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jwt, err := jose.NewSignedJWT(claims, signer)
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if err != nil {
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t.Fatalf("Cannot generate token: %v", err)
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return ""
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}
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return jwt.Encode()
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}
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func generateGoodToken(t *testing.T, op *oidctesting.OIDCProvider, iss, sub, aud string, usernameClaim, value, groupsClaim string, groups []string) string {
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return generateToken(t, op, iss, sub, aud, usernameClaim, value, groupsClaim, groups, time.Now(), time.Now().Add(time.Hour))
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}
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func generateMalformedToken(t *testing.T, op *oidctesting.OIDCProvider, iss, sub, aud string, usernameClaim, value, groupsClaim string, groups []string) string {
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return generateToken(t, op, iss, sub, aud, usernameClaim, value, groupsClaim, groups, time.Now(), time.Now().Add(time.Hour)) + "randombits"
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}
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func generateExpiredToken(t *testing.T, op *oidctesting.OIDCProvider, iss, sub, aud string, usernameClaim, value, groupsClaim string, groups []string) string {
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return generateToken(t, op, iss, sub, aud, usernameClaim, value, groupsClaim, groups, time.Now().Add(-2*time.Hour), time.Now().Add(-1*time.Hour))
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}
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func TestOIDCDiscoveryTimeout(t *testing.T) {
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expectErr := fmt.Errorf("failed to fetch provider config after 1 retries")
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_, err := New(OIDCOptions{"https://127.0.0.1:9999/bar", "client-foo", "", "sub", "", 1, 100 * time.Millisecond})
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if !reflect.DeepEqual(err, expectErr) {
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t.Errorf("Expecting %v, but got %v", expectErr, err)
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}
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}
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func TestOIDCDiscoveryNoKeyEndpoint(t *testing.T) {
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var err error
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expectErr := fmt.Errorf("failed to fetch provider config after 0 retries")
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cert := path.Join(os.TempDir(), "oidc-cert")
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key := path.Join(os.TempDir(), "oidc-key")
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defer os.Remove(cert)
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defer os.Remove(key)
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oidctesting.GenerateSelfSignedCert(t, "127.0.0.1", cert, key)
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op := oidctesting.NewOIDCProvider(t)
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srv, err := op.ServeTLSWithKeyPair(cert, key)
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if err != nil {
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t.Fatalf("Cannot start server %v", err)
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}
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defer srv.Close()
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op.PCFG = oidc.ProviderConfig{
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Issuer: oidctesting.MustParseURL(srv.URL), // An invalid ProviderConfig. Keys endpoint is required.
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}
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_, err = New(OIDCOptions{srv.URL, "client-foo", cert, "sub", "", 0, 0})
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if !reflect.DeepEqual(err, expectErr) {
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t.Errorf("Expecting %v, but got %v", expectErr, err)
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}
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}
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func TestOIDCDiscoverySecureConnection(t *testing.T) {
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// Verify that plain HTTP issuer URL is forbidden.
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op := oidctesting.NewOIDCProvider(t)
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srv := httptest.NewServer(op.Mux)
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defer srv.Close()
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op.PCFG = oidc.ProviderConfig{
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Issuer: oidctesting.MustParseURL(srv.URL),
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KeysEndpoint: oidctesting.MustParseURL(srv.URL + "/keys"),
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}
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expectErr := fmt.Errorf("'oidc-issuer-url' (%q) has invalid scheme (%q), require 'https'", srv.URL, "http")
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_, err := New(OIDCOptions{srv.URL, "client-foo", "", "sub", "", 0, 0})
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if !reflect.DeepEqual(err, expectErr) {
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t.Errorf("Expecting %v, but got %v", expectErr, err)
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}
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// Verify the cert/key pair works.
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cert1 := path.Join(os.TempDir(), "oidc-cert-1")
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key1 := path.Join(os.TempDir(), "oidc-key-1")
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cert2 := path.Join(os.TempDir(), "oidc-cert-2")
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key2 := path.Join(os.TempDir(), "oidc-key-2")
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defer os.Remove(cert1)
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defer os.Remove(key1)
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defer os.Remove(cert2)
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defer os.Remove(key2)
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oidctesting.GenerateSelfSignedCert(t, "127.0.0.1", cert1, key1)
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oidctesting.GenerateSelfSignedCert(t, "127.0.0.1", cert2, key2)
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// Create a TLS server using cert/key pair 1.
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tlsSrv, err := op.ServeTLSWithKeyPair(cert1, key1)
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if err != nil {
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t.Fatalf("Cannot start server: %v", err)
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}
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defer tlsSrv.Close()
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op.PCFG = oidc.ProviderConfig{
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Issuer: oidctesting.MustParseURL(tlsSrv.URL),
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KeysEndpoint: oidctesting.MustParseURL(tlsSrv.URL + "/keys"),
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}
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// Create a client using cert2, should fail.
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_, err = New(OIDCOptions{tlsSrv.URL, "client-foo", cert2, "sub", "", 0, 0})
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if err == nil {
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t.Fatalf("Expecting error, but got nothing")
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}
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}
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func TestOIDCAuthentication(t *testing.T) {
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var err error
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cert := path.Join(os.TempDir(), "oidc-cert")
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key := path.Join(os.TempDir(), "oidc-key")
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defer os.Remove(cert)
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defer os.Remove(key)
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oidctesting.GenerateSelfSignedCert(t, "127.0.0.1", cert, key)
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// Create a TLS server and a client.
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op := oidctesting.NewOIDCProvider(t)
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srv, err := op.ServeTLSWithKeyPair(cert, key)
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if err != nil {
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t.Fatalf("Cannot start server: %v", err)
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}
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defer srv.Close()
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// A provider config with all required fields.
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op.AddMinimalProviderConfig(srv)
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tests := []struct {
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userClaim string
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groupsClaim string
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token string
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userInfo user.Info
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verified bool
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err string
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}{
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{
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"sub",
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"",
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generateGoodToken(t, op, srv.URL, "client-foo", "client-foo", "sub", "user-foo", "", nil),
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&user.DefaultInfo{Name: fmt.Sprintf("%s#%s", srv.URL, "user-foo")},
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true,
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"",
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},
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{
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// Use user defined claim (email here).
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"email",
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"",
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generateGoodToken(t, op, srv.URL, "client-foo", "client-foo", "email", "foo@example.com", "", nil),
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&user.DefaultInfo{Name: "foo@example.com"},
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true,
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"",
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},
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{
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// Use user defined claim (email here).
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"email",
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"",
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generateGoodToken(t, op, srv.URL, "client-foo", "client-foo", "email", "foo@example.com", "groups", []string{"group1", "group2"}),
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&user.DefaultInfo{Name: "foo@example.com"},
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true,
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"",
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},
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{
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// Use user defined claim (email here).
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"email",
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"groups",
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generateGoodToken(t, op, srv.URL, "client-foo", "client-foo", "email", "foo@example.com", "groups", []string{"group1", "group2"}),
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&user.DefaultInfo{Name: "foo@example.com", Groups: []string{"group1", "group2"}},
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true,
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"",
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},
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{
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"sub",
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"",
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generateMalformedToken(t, op, srv.URL, "client-foo", "client-foo", "sub", "user-foo", "", nil),
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nil,
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false,
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"oidc: unable to verify JWT signature: no matching keys",
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},
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{
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// Invalid 'aud'.
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"sub",
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"",
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generateGoodToken(t, op, srv.URL, "client-foo", "client-bar", "sub", "user-foo", "", nil),
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nil,
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false,
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"oidc: JWT claims invalid: invalid claims, 'aud' claim and 'client_id' do not match",
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},
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{
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// Invalid issuer.
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"sub",
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"",
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generateGoodToken(t, op, "http://foo-bar.com", "client-foo", "client-foo", "sub", "user-foo", "", nil),
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nil,
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false,
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"oidc: JWT claims invalid: invalid claim value: 'iss'.",
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},
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{
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"sub",
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"",
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generateExpiredToken(t, op, srv.URL, "client-foo", "client-foo", "sub", "user-foo", "", nil),
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nil,
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false,
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"oidc: JWT claims invalid: token is expired",
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},
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}
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for i, tt := range tests {
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client, err := New(OIDCOptions{srv.URL, "client-foo", cert, tt.userClaim, tt.groupsClaim, 1, 100 * time.Millisecond})
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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continue
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}
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user, result, err := client.AuthenticateToken(tt.token)
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if tt.err != "" {
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if !strings.HasPrefix(err.Error(), tt.err) {
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t.Errorf("#%d: Expecting: %v..., but got: %v", i, tt.err, err)
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}
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} else {
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if err != nil {
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t.Errorf("#%d: Unexpected error: %v", i, err)
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}
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}
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if !reflect.DeepEqual(tt.verified, result) {
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t.Errorf("#%d: Expecting: %v, but got: %v", i, tt.verified, result)
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}
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if !reflect.DeepEqual(tt.userInfo, user) {
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t.Errorf("#%d: Expecting: %v, but got: %v", i, tt.userInfo, user)
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}
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client.Close()
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}
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}
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