/usr/share/gocode/src/github.com/Azure/azure-sdk-for-go/core/http/httputil/reverseproxy_test.go is in golang-github-azure-azure-sdk-for-go-dev 1.2~git20150611.0.97d9593-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | // Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Reverse proxy tests.
package httputil
import (
"io/ioutil"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
)
const fakeHopHeader = "X-Fake-Hop-Header-For-Test"
func init() {
hopHeaders = append(hopHeaders, fakeHopHeader)
}
func TestReverseProxy(t *testing.T) {
const backendResponse = "I am the backend"
const backendStatus = 404
backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if len(r.TransferEncoding) > 0 {
t.Errorf("backend got unexpected TransferEncoding: %v", r.TransferEncoding)
}
if r.Header.Get("X-Forwarded-For") == "" {
t.Errorf("didn't get X-Forwarded-For header")
}
if c := r.Header.Get("Connection"); c != "" {
t.Errorf("handler got Connection header value %q", c)
}
if c := r.Header.Get("Upgrade"); c != "" {
t.Errorf("handler got Upgrade header value %q", c)
}
if g, e := r.Host, "some-name"; g != e {
t.Errorf("backend got Host header %q, want %q", g, e)
}
w.Header().Set("X-Foo", "bar")
w.Header().Set("Upgrade", "foo")
w.Header().Set(fakeHopHeader, "foo")
w.Header().Add("X-Multi-Value", "foo")
w.Header().Add("X-Multi-Value", "bar")
http.SetCookie(w, &http.Cookie{Name: "flavor", Value: "chocolateChip"})
w.WriteHeader(backendStatus)
w.Write([]byte(backendResponse))
}))
defer backend.Close()
backendURL, err := url.Parse(backend.URL)
if err != nil {
t.Fatal(err)
}
proxyHandler := NewSingleHostReverseProxy(backendURL)
frontend := httptest.NewServer(proxyHandler)
defer frontend.Close()
getReq, _ := http.NewRequest("GET", frontend.URL, nil)
getReq.Host = "some-name"
getReq.Header.Set("Connection", "close")
getReq.Header.Set("Upgrade", "foo")
getReq.Close = true
res, err := http.DefaultClient.Do(getReq)
if err != nil {
t.Fatalf("Get: %v", err)
}
if g, e := res.StatusCode, backendStatus; g != e {
t.Errorf("got res.StatusCode %d; expected %d", g, e)
}
if g, e := res.Header.Get("X-Foo"), "bar"; g != e {
t.Errorf("got X-Foo %q; expected %q", g, e)
}
if c := res.Header.Get(fakeHopHeader); c != "" {
t.Errorf("got %s header value %q", fakeHopHeader, c)
}
if g, e := len(res.Header["X-Multi-Value"]), 2; g != e {
t.Errorf("got %d X-Multi-Value header values; expected %d", g, e)
}
if g, e := len(res.Header["Set-Cookie"]), 1; g != e {
t.Fatalf("got %d SetCookies, want %d", g, e)
}
if cookie := res.Cookies()[0]; cookie.Name != "flavor" {
t.Errorf("unexpected cookie %q", cookie.Name)
}
bodyBytes, _ := ioutil.ReadAll(res.Body)
if g, e := string(bodyBytes), backendResponse; g != e {
t.Errorf("got body %q; expected %q", g, e)
}
}
func TestXForwardedFor(t *testing.T) {
const prevForwardedFor = "client ip"
const backendResponse = "I am the backend"
const backendStatus = 404
backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("X-Forwarded-For") == "" {
t.Errorf("didn't get X-Forwarded-For header")
}
if !strings.Contains(r.Header.Get("X-Forwarded-For"), prevForwardedFor) {
t.Errorf("X-Forwarded-For didn't contain prior data")
}
w.WriteHeader(backendStatus)
w.Write([]byte(backendResponse))
}))
defer backend.Close()
backendURL, err := url.Parse(backend.URL)
if err != nil {
t.Fatal(err)
}
proxyHandler := NewSingleHostReverseProxy(backendURL)
frontend := httptest.NewServer(proxyHandler)
defer frontend.Close()
getReq, _ := http.NewRequest("GET", frontend.URL, nil)
getReq.Host = "some-name"
getReq.Header.Set("Connection", "close")
getReq.Header.Set("X-Forwarded-For", prevForwardedFor)
getReq.Close = true
res, err := http.DefaultClient.Do(getReq)
if err != nil {
t.Fatalf("Get: %v", err)
}
if g, e := res.StatusCode, backendStatus; g != e {
t.Errorf("got res.StatusCode %d; expected %d", g, e)
}
bodyBytes, _ := ioutil.ReadAll(res.Body)
if g, e := string(bodyBytes), backendResponse; g != e {
t.Errorf("got body %q; expected %q", g, e)
}
}
var proxyQueryTests = []struct {
baseSuffix string // suffix to add to backend URL
reqSuffix string // suffix to add to frontend's request URL
want string // what backend should see for final request URL (without ?)
}{
{"", "", ""},
{"?sta=tic", "?us=er", "sta=tic&us=er"},
{"", "?us=er", "us=er"},
{"?sta=tic", "", "sta=tic"},
}
func TestReverseProxyQuery(t *testing.T) {
backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("X-Got-Query", r.URL.RawQuery)
w.Write([]byte("hi"))
}))
defer backend.Close()
for i, tt := range proxyQueryTests {
backendURL, err := url.Parse(backend.URL + tt.baseSuffix)
if err != nil {
t.Fatal(err)
}
frontend := httptest.NewServer(NewSingleHostReverseProxy(backendURL))
req, _ := http.NewRequest("GET", frontend.URL+tt.reqSuffix, nil)
req.Close = true
res, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("%d. Get: %v", i, err)
}
if g, e := res.Header.Get("X-Got-Query"), tt.want; g != e {
t.Errorf("%d. got query %q; expected %q", i, g, e)
}
res.Body.Close()
frontend.Close()
}
}
func TestReverseProxyFlushInterval(t *testing.T) {
const expected = "hi"
backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(expected))
}))
defer backend.Close()
backendURL, err := url.Parse(backend.URL)
if err != nil {
t.Fatal(err)
}
proxyHandler := NewSingleHostReverseProxy(backendURL)
proxyHandler.FlushInterval = time.Microsecond
done := make(chan bool)
onExitFlushLoop = func() { done <- true }
defer func() { onExitFlushLoop = nil }()
frontend := httptest.NewServer(proxyHandler)
defer frontend.Close()
req, _ := http.NewRequest("GET", frontend.URL, nil)
req.Close = true
res, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("Get: %v", err)
}
defer res.Body.Close()
if bodyBytes, _ := ioutil.ReadAll(res.Body); string(bodyBytes) != expected {
t.Errorf("got body %q; expected %q", bodyBytes, expected)
}
select {
case <-done:
// OK
case <-time.After(5 * time.Second):
t.Error("maxLatencyWriter flushLoop() never exited")
}
}
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