371 lines
9.4 KiB
Go
371 lines
9.4 KiB
Go
/*
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Copyright 2014 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 kubectl
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import (
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"fmt"
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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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"os"
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"path/filepath"
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"strings"
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"testing"
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restclient "k8s.io/client-go/rest"
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)
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func TestAccept(t *testing.T) {
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tests := []struct {
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acceptPaths string
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rejectPaths string
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acceptHosts string
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path string
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host string
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method string
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expectAccept bool
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}{
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "",
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host: "127.0.0.1",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "127.0.0.1",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "localhost",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/foo",
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host: "localhost",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/attachfoo",
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host: "localhost",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/execfoo",
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host: "localhost",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/foo/exec",
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host: "127.0.0.1",
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method: "GET",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/foo/attach",
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host: "127.0.0.1",
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method: "GET",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "evil.com",
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method: "GET",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "localhost.evil.com",
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method: "GET",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "127a0b0c1",
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method: "GET",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/ui",
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host: "localhost",
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method: "GET",
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expectAccept: true,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/pods",
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host: "localhost",
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method: "POST",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/somepod",
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host: "localhost",
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method: "PUT",
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expectAccept: false,
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},
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{
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acceptPaths: DefaultPathAcceptRE,
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rejectPaths: DefaultPathRejectRE,
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acceptHosts: DefaultHostAcceptRE,
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path: "/api/v1/namespaces/default/pods/somepod",
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host: "localhost",
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method: "PATCH",
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expectAccept: false,
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},
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}
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for _, test := range tests {
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filter := &FilterServer{
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AcceptPaths: MakeRegexpArrayOrDie(test.acceptPaths),
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RejectPaths: MakeRegexpArrayOrDie(test.rejectPaths),
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AcceptHosts: MakeRegexpArrayOrDie(test.acceptHosts),
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RejectMethods: MakeRegexpArrayOrDie(DefaultMethodRejectRE),
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}
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accept := filter.accept(test.method, test.path, test.host)
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if accept != test.expectAccept {
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t.Errorf("expected: %v, got %v for %#v", test.expectAccept, accept, test)
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}
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}
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}
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func TestRegexpMatch(t *testing.T) {
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tests := []struct {
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str string
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regexps string
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expectMatch bool
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}{
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{
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str: "foo",
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regexps: "bar,.*",
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expectMatch: true,
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},
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{
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str: "foo",
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regexps: "bar,fo.*",
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expectMatch: true,
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},
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{
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str: "bar",
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regexps: "bar,fo.*",
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expectMatch: true,
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},
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{
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str: "baz",
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regexps: "bar,fo.*",
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expectMatch: false,
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},
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}
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for _, test := range tests {
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match := matchesRegexp(test.str, MakeRegexpArrayOrDie(test.regexps))
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if test.expectMatch != match {
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t.Errorf("expected: %v, found: %v, for %s and %v", test.expectMatch, match, test.str, test.regexps)
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}
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}
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}
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func TestFileServing(t *testing.T) {
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const (
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fname = "test.txt"
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data = "This is test data"
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)
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dir, err := ioutil.TempDir("", "data")
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if err != nil {
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t.Fatalf("error creating tmp dir: %v", err)
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}
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defer os.RemoveAll(dir)
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if err := ioutil.WriteFile(filepath.Join(dir, fname), []byte(data), 0755); err != nil {
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t.Fatalf("error writing tmp file: %v", err)
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}
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const prefix = "/foo/"
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handler := newFileHandler(prefix, dir)
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server := httptest.NewServer(handler)
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defer server.Close()
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url := server.URL + prefix + fname
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res, err := http.Get(url)
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if err != nil {
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t.Fatalf("http.Get(%q) error: %v", url, err)
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}
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defer res.Body.Close()
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if res.StatusCode != http.StatusOK {
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t.Errorf("res.StatusCode = %d; want %d", res.StatusCode, http.StatusOK)
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}
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b, err := ioutil.ReadAll(res.Body)
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if err != nil {
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t.Fatalf("error reading resp body: %v", err)
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}
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if string(b) != data {
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t.Errorf("have %q; want %q", string(b), data)
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}
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}
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func TestAPIRequests(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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b, err := ioutil.ReadAll(r.Body)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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fmt.Fprintf(w, "%s %s %s", r.Method, r.RequestURI, string(b))
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}))
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defer ts.Close()
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// httptest.NewServer should always generate a valid URL.
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target, _ := url.Parse(ts.URL)
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proxy := newProxy(target)
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tests := []struct{ method, body string }{
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{"GET", ""},
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{"DELETE", ""},
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{"POST", "test payload"},
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{"PUT", "test payload"},
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}
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const path = "/api/test?fields=ID%3Dfoo&labels=key%3Dvalue"
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for i, tt := range tests {
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r, err := http.NewRequest(tt.method, path, strings.NewReader(tt.body))
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if err != nil {
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t.Errorf("error creating request: %v", err)
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continue
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}
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w := httptest.NewRecorder()
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proxy.ServeHTTP(w, r)
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if w.Code != http.StatusOK {
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t.Errorf("%d: proxy.ServeHTTP w.Code = %d; want %d", i, w.Code, http.StatusOK)
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}
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want := strings.Join([]string{tt.method, path, tt.body}, " ")
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if w.Body.String() != want {
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t.Errorf("%d: response body = %q; want %q", i, w.Body.String(), want)
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}
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}
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}
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func TestPathHandling(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, r.URL.Path)
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}))
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defer ts.Close()
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table := []struct {
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prefix string
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reqPath string
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expectPath string
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}{
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{"/api/", "/metrics", "404 page not found\n"},
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{"/api/", "/api/metrics", "/api/metrics"},
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{"/api/", "/api/v1/pods/", "/api/v1/pods/"},
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{"/", "/metrics", "/metrics"},
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{"/", "/api/v1/pods/", "/api/v1/pods/"},
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{"/custom/", "/metrics", "404 page not found\n"},
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{"/custom/", "/api/metrics", "404 page not found\n"},
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{"/custom/", "/api/v1/pods/", "404 page not found\n"},
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{"/custom/", "/custom/api/metrics", "/api/metrics"},
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{"/custom/", "/custom/api/v1/pods/", "/api/v1/pods/"},
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}
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cc := &restclient.Config{
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Host: ts.URL,
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}
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for _, item := range table {
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func() {
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p, err := NewProxyServer("", item.prefix, "/not/used/for/this/test", nil, cc)
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if err != nil {
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t.Fatalf("%#v: %v", item, err)
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}
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pts := httptest.NewServer(p.handler)
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defer pts.Close()
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r, err := http.Get(pts.URL + item.reqPath)
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if err != nil {
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t.Fatalf("%#v: %v", item, err)
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}
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body, err := ioutil.ReadAll(r.Body)
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r.Body.Close()
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if err != nil {
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t.Fatalf("%#v: %v", item, err)
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}
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if e, a := item.expectPath, string(body); e != a {
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t.Errorf("%#v: Wanted %q, got %q", item, e, a)
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}
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}()
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}
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}
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func TestExtractHost(t *testing.T) {
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fixtures := map[string]string{
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"localhost:8085": "localhost",
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"marmalade": "marmalade",
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}
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for header, expected := range fixtures {
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host := extractHost(header)
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if host != expected {
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t.Fatalf("%s != %s", host, expected)
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}
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}
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}
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