106 lines
3.6 KiB
Go
106 lines
3.6 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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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 cache
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import (
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"reflect"
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"testing"
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"time"
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utilclock "k8s.io/apimachinery/pkg/util/clock"
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"k8s.io/apiserver/pkg/authentication/authenticator"
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"k8s.io/apiserver/pkg/authentication/user"
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)
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func TestCachedTokenAuthenticator(t *testing.T) {
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var (
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calledWithToken []string
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resultUsers map[string]user.Info
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resultOk bool
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resultErr error
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)
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fakeAuth := authenticator.TokenFunc(func(token string) (user.Info, bool, error) {
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calledWithToken = append(calledWithToken, token)
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return resultUsers[token], resultOk, resultErr
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})
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fakeClock := utilclock.NewFakeClock(time.Now())
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a := newWithClock(fakeAuth, time.Minute, 0, fakeClock)
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calledWithToken, resultUsers, resultOk, resultErr = []string{}, nil, false, nil
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a.AuthenticateToken("bad1")
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a.AuthenticateToken("bad2")
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a.AuthenticateToken("bad3")
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a.AuthenticateToken("bad1")
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a.AuthenticateToken("bad2")
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a.AuthenticateToken("bad3")
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if !reflect.DeepEqual(calledWithToken, []string{"bad1", "bad2", "bad3", "bad1", "bad2", "bad3"}) {
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t.Errorf("Expected failing calls to bypass cache, got %v", calledWithToken)
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}
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// reset calls, make the backend return success for three user tokens
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calledWithToken = []string{}
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resultUsers, resultOk, resultErr = map[string]user.Info{}, true, nil
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resultUsers["usertoken1"] = &user.DefaultInfo{Name: "user1"}
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resultUsers["usertoken2"] = &user.DefaultInfo{Name: "user2"}
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resultUsers["usertoken3"] = &user.DefaultInfo{Name: "user3"}
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// populate cache
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if user, ok, err := a.AuthenticateToken("usertoken1"); err != nil || !ok || user.GetName() != "user1" {
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t.Errorf("Expected user1")
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}
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if user, ok, err := a.AuthenticateToken("usertoken2"); err != nil || !ok || user.GetName() != "user2" {
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t.Errorf("Expected user2")
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}
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if user, ok, err := a.AuthenticateToken("usertoken3"); err != nil || !ok || user.GetName() != "user3" {
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t.Errorf("Expected user3")
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}
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if !reflect.DeepEqual(calledWithToken, []string{"usertoken1", "usertoken2", "usertoken3"}) {
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t.Errorf("Expected token calls, got %v", calledWithToken)
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}
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// reset calls, make the backend return failures
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calledWithToken = []string{}
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resultUsers, resultOk, resultErr = nil, false, nil
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// authenticate calls still succeed and backend is not hit
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if user, ok, err := a.AuthenticateToken("usertoken1"); err != nil || !ok || user.GetName() != "user1" {
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t.Errorf("Expected user1")
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}
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if user, ok, err := a.AuthenticateToken("usertoken2"); err != nil || !ok || user.GetName() != "user2" {
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t.Errorf("Expected user2")
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}
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if user, ok, err := a.AuthenticateToken("usertoken3"); err != nil || !ok || user.GetName() != "user3" {
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t.Errorf("Expected user3")
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}
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if !reflect.DeepEqual(calledWithToken, []string{}) {
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t.Errorf("Expected no token calls, got %v", calledWithToken)
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}
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// skip forward in time
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fakeClock.Step(2 * time.Minute)
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// backend is consulted again and fails
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a.AuthenticateToken("usertoken1")
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a.AuthenticateToken("usertoken2")
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a.AuthenticateToken("usertoken3")
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if !reflect.DeepEqual(calledWithToken, []string{"usertoken1", "usertoken2", "usertoken3"}) {
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t.Errorf("Expected token calls, got %v", calledWithToken)
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}
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}
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