1/* 2Copyright 2020 The Kubernetes Authors. 3 4Licensed under the Apache License, Version 2.0 (the "License"); 5you may not use this file except in compliance with the License. 6You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10Unless required by applicable law or agreed to in writing, software 11distributed under the License is distributed on an "AS IS" BASIS, 12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13See the License for the specific language governing permissions and 14limitations under the License. 15*/ 16 17package apimachinery 18 19import ( 20 "io/ioutil" 21 "net/http" 22 "strings" 23 24 "github.com/onsi/ginkgo" 25 "k8s.io/client-go/rest" 26 "k8s.io/kubernetes/test/e2e/framework" 27) 28 29const ( 30 invalidTimeoutMessageExpected = "invalid timeout specified in the request URL" 31) 32 33var _ = SIGDescribe("Server request timeout", func() { 34 f := framework.NewDefaultFramework("request-timeout") 35 36 ginkgo.It("should return HTTP status code 400 if the user specifies an invalid timeout in the request URL", func() { 37 rt := getRoundTripper(f) 38 req := newRequest(f, "invalid") 39 40 response, err := rt.RoundTrip(req) 41 framework.ExpectNoError(err) 42 defer response.Body.Close() 43 44 if response.StatusCode != http.StatusBadRequest { 45 framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusBadRequest, response.StatusCode) 46 } 47 48 messageGot := readBody(response) 49 if !strings.Contains(messageGot, invalidTimeoutMessageExpected) { 50 framework.Failf("expected HTTP status message to contain: %s, but got: %s", invalidTimeoutMessageExpected, messageGot) 51 } 52 }) 53 54 ginkgo.It("the request should be served with a default timeout if the specified timeout in the request URL exceeds maximum allowed", func() { 55 rt := getRoundTripper(f) 56 // Choose a timeout that exceeds the default timeout (60s) enforced by the apiserver 57 req := newRequest(f, "3m") 58 59 response, err := rt.RoundTrip(req) 60 framework.ExpectNoError(err) 61 defer response.Body.Close() 62 63 if response.StatusCode != http.StatusOK { 64 framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusOK, response.StatusCode) 65 } 66 }) 67 68 ginkgo.It("default timeout should be used if the specified timeout in the request URL is 0s", func() { 69 rt := getRoundTripper(f) 70 req := newRequest(f, "0s") 71 72 response, err := rt.RoundTrip(req) 73 framework.ExpectNoError(err) 74 defer response.Body.Close() 75 76 if response.StatusCode != http.StatusOK { 77 framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusOK, response.StatusCode) 78 } 79 }) 80}) 81 82func getRoundTripper(f *framework.Framework) http.RoundTripper { 83 config := rest.CopyConfig(f.ClientConfig()) 84 85 // ensure we don't enforce any transport timeout from the client side. 86 config.Timeout = 0 87 88 roundTripper, err := rest.TransportFor(config) 89 framework.ExpectNoError(err) 90 91 return roundTripper 92} 93 94func newRequest(f *framework.Framework, timeout string) *http.Request { 95 req, err := http.NewRequest(http.MethodGet, f.ClientSet.CoreV1().RESTClient().Get(). 96 Param("timeout", timeout).AbsPath("version").URL().String(), nil) 97 framework.ExpectNoError(err) 98 99 return req 100} 101 102func readBody(response *http.Response) string { 103 raw, err := ioutil.ReadAll(response.Body) 104 framework.ExpectNoError(err) 105 106 return string(raw) 107} 108