mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-03 19:58:17 +00:00
331 lines
11 KiB
Go
331 lines
11 KiB
Go
/*
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Copyright 2014 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 apiserver
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import (
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"compress/gzip"
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"crypto/tls"
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"crypto/x509"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"net/url"
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"strings"
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"testing"
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"golang.org/x/net/websocket"
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"k8s.io/kubernetes/pkg/api/rest"
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)
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func TestProxy(t *testing.T) {
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table := []struct {
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method string
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path string
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reqBody string
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respBody string
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respContentType string
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reqNamespace string
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}{
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{"GET", "/some/dir", "", "answer", "text/css", "default"},
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{"GET", "/some/dir", "", "<html><head></head><body>answer</body></html>", "text/html", "default"},
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{"POST", "/some/other/dir", "question", "answer", "text/css", "default"},
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{"PUT", "/some/dir/id", "different question", "answer", "text/css", "default"},
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{"DELETE", "/some/dir/id", "", "ok", "text/css", "default"},
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{"GET", "/some/dir/id", "", "answer", "text/css", "other"},
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{"GET", "/trailing/slash/", "", "answer", "text/css", "default"},
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{"GET", "/", "", "answer", "text/css", "default"},
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}
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for _, item := range table {
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proxyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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gotBody, err := ioutil.ReadAll(req.Body)
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if err != nil {
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t.Errorf("%v - unexpected error %v", item.method, err)
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}
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if e, a := item.reqBody, string(gotBody); e != a {
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t.Errorf("%v - expected %v, got %v", item.method, e, a)
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}
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if e, a := item.path, req.URL.Path; e != a {
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t.Errorf("%v - expected %v, got %v", item.method, e, a)
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}
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w.Header().Set("Content-Type", item.respContentType)
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var out io.Writer = w
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if strings.Contains(req.Header.Get("Accept-Encoding"), "gzip") {
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// The proxier can ask for gzip'd data; we need to provide it with that
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// in order to test our processing of that data.
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w.Header().Set("Content-Encoding", "gzip")
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gzw := gzip.NewWriter(w)
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out = gzw
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defer gzw.Close()
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}
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fmt.Fprint(out, item.respBody)
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}))
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defer proxyServer.Close()
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serverURL, _ := url.Parse(proxyServer.URL)
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simpleStorage := &SimpleRESTStorage{
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errors: map[string]error{},
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resourceLocation: serverURL,
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expectedResourceNamespace: item.reqNamespace,
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}
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namespaceHandler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
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namespaceServer := httptest.NewServer(namespaceHandler)
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defer namespaceServer.Close()
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// test each supported URL pattern for finding the redirection resource in the proxy in a particular namespace
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serverPatterns := []struct {
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server *httptest.Server
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proxyTestPattern string
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}{
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{namespaceServer, "/api/version2/proxy/namespaces/" + item.reqNamespace + "/foo/id" + item.path},
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}
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for _, serverPattern := range serverPatterns {
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server := serverPattern.server
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proxyTestPattern := serverPattern.proxyTestPattern
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req, err := http.NewRequest(
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item.method,
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server.URL+proxyTestPattern,
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strings.NewReader(item.reqBody),
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)
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if err != nil {
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t.Errorf("%v - unexpected error %v", item.method, err)
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continue
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}
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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t.Errorf("%v - unexpected error %v", item.method, err)
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continue
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}
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gotResp, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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t.Errorf("%v - unexpected error %v", item.method, err)
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}
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resp.Body.Close()
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if e, a := item.respBody, string(gotResp); e != a {
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t.Errorf("%v - expected %v, got %v. url: %#v", item.method, e, a, req.URL)
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}
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}
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}
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}
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func TestProxyUpgrade(t *testing.T) {
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localhostPool := x509.NewCertPool()
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if !localhostPool.AppendCertsFromPEM(localhostCert) {
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t.Errorf("error setting up localhostCert pool")
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}
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testcases := map[string]struct {
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ServerFunc func(http.Handler) *httptest.Server
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ProxyTransport http.RoundTripper
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}{
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"http": {
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ServerFunc: httptest.NewServer,
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ProxyTransport: nil,
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},
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"https (invalid hostname + InsecureSkipVerify)": {
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ServerFunc: func(h http.Handler) *httptest.Server {
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cert, err := tls.X509KeyPair(exampleCert, exampleKey)
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if err != nil {
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t.Errorf("https (invalid hostname): proxy_test: %v", err)
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}
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ts := httptest.NewUnstartedServer(h)
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ts.TLS = &tls.Config{
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Certificates: []tls.Certificate{cert},
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}
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ts.StartTLS()
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return ts
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},
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ProxyTransport: &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}},
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},
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"https (valid hostname + RootCAs)": {
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ServerFunc: func(h http.Handler) *httptest.Server {
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cert, err := tls.X509KeyPair(localhostCert, localhostKey)
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if err != nil {
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t.Errorf("https (valid hostname): proxy_test: %v", err)
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}
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ts := httptest.NewUnstartedServer(h)
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ts.TLS = &tls.Config{
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Certificates: []tls.Certificate{cert},
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}
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ts.StartTLS()
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return ts
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},
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ProxyTransport: &http.Transport{TLSClientConfig: &tls.Config{RootCAs: localhostPool}},
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},
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}
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for k, tc := range testcases {
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backendServer := tc.ServerFunc(websocket.Handler(func(ws *websocket.Conn) {
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defer ws.Close()
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body := make([]byte, 5)
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ws.Read(body)
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ws.Write([]byte("hello " + string(body)))
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}))
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defer backendServer.Close()
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serverURL, _ := url.Parse(backendServer.URL)
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simpleStorage := &SimpleRESTStorage{
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errors: map[string]error{},
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resourceLocation: serverURL,
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resourceLocationTransport: tc.ProxyTransport,
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expectedResourceNamespace: "myns",
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}
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namespaceHandler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
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server := httptest.NewServer(namespaceHandler)
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defer server.Close()
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ws, err := websocket.Dial("ws://"+server.Listener.Addr().String()+"/api/version2/proxy/namespaces/myns/foo/123", "", "http://127.0.0.1/")
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if err != nil {
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t.Errorf("%s: websocket dial err: %s", k, err)
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continue
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}
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defer ws.Close()
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if _, err := ws.Write([]byte("world")); err != nil {
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t.Errorf("%s: write err: %s", k, err)
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continue
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}
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response := make([]byte, 20)
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n, err := ws.Read(response)
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if err != nil {
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t.Errorf("%s: read err: %s", k, err)
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continue
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}
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if e, a := "hello world", string(response[0:n]); e != a {
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t.Errorf("%s: expected '%#v', got '%#v'", k, e, a)
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continue
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}
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}
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}
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func TestRedirectOnMissingTrailingSlash(t *testing.T) {
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table := []struct {
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// The requested path
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path string
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// The path requested on the proxy server.
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proxyServerPath string
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// query string
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query string
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}{
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{"/trailing/slash/", "/trailing/slash/", ""},
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{"/", "/", "test1=value1&test2=value2"},
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// "/" should be added at the end.
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{"", "/", "test1=value1&test2=value2"},
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// "/" should not be added at a non-root path.
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{"/some/path", "/some/path", ""},
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}
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for _, item := range table {
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proxyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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if req.URL.Path != item.proxyServerPath {
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t.Errorf("Unexpected request on path: %s, expected path: %s, item: %v", req.URL.Path, item.proxyServerPath, item)
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}
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if req.URL.RawQuery != item.query {
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t.Errorf("Unexpected query on url: %s, expected: %s", req.URL.RawQuery, item.query)
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}
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}))
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defer proxyServer.Close()
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serverURL, _ := url.Parse(proxyServer.URL)
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simpleStorage := &SimpleRESTStorage{
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errors: map[string]error{},
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resourceLocation: serverURL,
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expectedResourceNamespace: "ns",
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}
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handler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
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server := httptest.NewServer(handler)
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defer server.Close()
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proxyTestPattern := "/api/version2/proxy/namespaces/ns/foo/id" + item.path
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req, err := http.NewRequest(
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"GET",
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server.URL+proxyTestPattern+"?"+item.query,
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strings.NewReader(""),
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)
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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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// Note: We are using a default client here, that follows redirects.
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resp, err := http.DefaultClient.Do(req)
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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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if resp.StatusCode != http.StatusOK {
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t.Errorf("Unexpected errorCode: %v, expected: 200. Response: %v, item: %v", resp.StatusCode, resp, item)
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}
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}
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}
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// exampleCert was generated from crypto/tls/generate_cert.go with the following command:
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// go run generate_cert.go --rsa-bits 512 --host example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
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var exampleCert = []byte(`-----BEGIN CERTIFICATE-----
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MIIBcjCCAR6gAwIBAgIQBOUTYowZaENkZi0faI9DgTALBgkqhkiG9w0BAQswEjEQ
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MA4GA1UEChMHQWNtZSBDbzAgFw03MDAxMDEwMDAwMDBaGA8yMDg0MDEyOTE2MDAw
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MFowEjEQMA4GA1UEChMHQWNtZSBDbzBcMA0GCSqGSIb3DQEBAQUAA0sAMEgCQQCZ
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xfR3sgeHBraGFfF/24tTn4PRVAHOf2UOOxSQRs+aYjNqimFqf/SRIblQgeXdBJDR
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gVK5F1Js2zwlehw0bHxRAgMBAAGjUDBOMA4GA1UdDwEB/wQEAwIApDATBgNVHSUE
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DDAKBggrBgEFBQcDATAPBgNVHRMBAf8EBTADAQH/MBYGA1UdEQQPMA2CC2V4YW1w
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bGUuY29tMAsGCSqGSIb3DQEBCwNBAI/mfBB8dm33IpUl+acSyWfL6gX5Wc0FFyVj
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dKeesE1XBuPX1My/rzU6Oy/YwX7LOL4FaeNUS6bbL4axSLPKYSs=
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-----END CERTIFICATE-----`)
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var exampleKey = []byte(`-----BEGIN RSA PRIVATE KEY-----
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MIIBOgIBAAJBAJnF9HeyB4cGtoYV8X/bi1Ofg9FUAc5/ZQ47FJBGz5piM2qKYWp/
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9JEhuVCB5d0EkNGBUrkXUmzbPCV6HDRsfFECAwEAAQJBAJLH9yPuButniACTn5L5
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IJQw1mWQt6zBw9eCo41YWkA0866EgjC53aPZaRjXMp0uNJGdIsys2V5rCOOLWN2C
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ODECIQDICHsi8QQQ9wpuJy8X5l8MAfxHL+DIqI84wQTeVM91FQIhAMTME8A18/7h
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1Ad6drdnxAkuC0tX6Sx0LDozrmen+HFNAiAlcEDrt0RVkIcpOrg7tuhPLQf0oudl
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Zvb3Xlj069awSQIgcT15E/43w2+RASifzVNhQ2MCTr1sSA8lL+xzK+REmnUCIBhQ
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j4139pf8Re1J50zBxS/JlQfgDQi9sO9pYeiHIxNs
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-----END RSA PRIVATE KEY-----`)
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// localhostCert was generated from crypto/tls/generate_cert.go with the following command:
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// go run generate_cert.go --rsa-bits 512 --host 127.0.0.1,::1,example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
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var localhostCert = []byte(`-----BEGIN CERTIFICATE-----
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MIIBdzCCASOgAwIBAgIBADALBgkqhkiG9w0BAQUwEjEQMA4GA1UEChMHQWNtZSBD
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bzAeFw03MDAxMDEwMDAwMDBaFw00OTEyMzEyMzU5NTlaMBIxEDAOBgNVBAoTB0Fj
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bWUgQ28wWjALBgkqhkiG9w0BAQEDSwAwSAJBAN55NcYKZeInyTuhcCwFMhDHCmwa
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IUSdtXdcbItRB/yfXGBhiex00IaLXQnSU+QZPRZWYqeTEbFSgihqi1PUDy8CAwEA
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AaNoMGYwDgYDVR0PAQH/BAQDAgCkMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1Ud
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EwEB/wQFMAMBAf8wLgYDVR0RBCcwJYILZXhhbXBsZS5jb22HBH8AAAGHEAAAAAAA
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AAAAAAAAAAAAAAEwCwYJKoZIhvcNAQEFA0EAAoQn/ytgqpiLcZu9XKbCJsJcvkgk
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Se6AbGXgSlq+ZCEVo0qIwSgeBqmsJxUu7NCSOwVJLYNEBO2DtIxoYVk+MA==
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-----END CERTIFICATE-----`)
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// localhostKey is the private key for localhostCert.
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var localhostKey = []byte(`-----BEGIN RSA PRIVATE KEY-----
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MIIBPAIBAAJBAN55NcYKZeInyTuhcCwFMhDHCmwaIUSdtXdcbItRB/yfXGBhiex0
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0IaLXQnSU+QZPRZWYqeTEbFSgihqi1PUDy8CAwEAAQJBAQdUx66rfh8sYsgfdcvV
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NoafYpnEcB5s4m/vSVe6SU7dCK6eYec9f9wpT353ljhDUHq3EbmE4foNzJngh35d
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AekCIQDhRQG5Li0Wj8TM4obOnnXUXf1jRv0UkzE9AHWLG5q3AwIhAPzSjpYUDjVW
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MCUXgckTpKCuGwbJk7424Nb8bLzf3kllAiA5mUBgjfr/WtFSJdWcPQ4Zt9KTMNKD
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EUO0ukpTwEIl6wIhAMbGqZK3zAAFdq8DD2jPx+UJXnh0rnOkZBzDtJ6/iN69AiEA
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1Aq8MJgTaYsDQWyU/hDq5YkDJc9e9DSCvUIzqxQWMQE=
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-----END RSA PRIVATE KEY-----`)
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