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// Copyright 2009 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.
// Tests for client.go
package http_test
import (
"bytes"
"context"
"crypto/tls"
"encoding/base64"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"net"
. "net/http"
"net/http/cookiejar"
"net/http/httptest"
"net/url"
"reflect"
"strconv"
"strings"
"sync"
"sync/atomic"
"testing"
"time"
)
var robotsTxtHandler = HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header().Set("Last-Modified", "sometime")
fmt.Fprintf(w, "User-agent: go\nDisallow: /something/")
})
// pedanticReadAll works like ioutil.ReadAll but additionally
// verifies that r obeys the documented io.Reader contract.
func pedanticReadAll(r io.Reader) (b []byte, err error) {
var bufa [64]byte
buf := bufa[:]
for {
n, err := r.Read(buf)
if n == 0 && err == nil {
return nil, fmt.Errorf("Read: n=0 with err=nil")
}
b = append(b, buf[:n]...)
if err == io.EOF {
n, err := r.Read(buf)
if n != 0 || err != io.EOF {
return nil, fmt.Errorf("Read: n=%d err=%#v after EOF", n, err)
}
return b, nil
}
if err != nil {
return b, err
}
}
}
type chanWriter chan string
func (w chanWriter) Write(p []byte) (n int, err error) {
w <- string(p)
return len(p), nil
}
func TestClient(t *testing.T) {
setParallel(t)
defer afterTest(t)
ts := httptest.NewServer(robotsTxtHandler)
defer ts.Close()
c := ts.Client()
r, err := c.Get(ts.URL)
var b []byte
if err == nil {
b, err = pedanticReadAll(r.Body)
r.Body.Close()
}
if err != nil {
t.Error(err)
} else if s := string(b); !strings.HasPrefix(s, "User-agent:") {
t.Errorf("Incorrect page body (did not begin with User-agent): %q", s)
}
}
func TestClientHead_h1(t *testing.T) { testClientHead(t, h1Mode) }
func TestClientHead_h2(t *testing.T) { testClientHead(t, h2Mode) }
func testClientHead(t *testing.T, h2 bool) {
defer afterTest(t)
cst := newClientServerTest(t, h2, robotsTxtHandler)
defer cst.close()
r, err := cst.c.Head(cst.ts.URL)
if err != nil {
t.Fatal(err)
}
if _, ok := r.Header["Last-Modified"]; !ok {
t.Error("Last-Modified header not found.")
}
}
type recordingTransport struct {
req *Request
}
func (t *recordingTransport) RoundTrip(req *Request) (resp *Response, err error) {
t.req = req
return nil, errors.New("dummy impl")
}
func TestGetRequestFormat(t *testing.T) {
setParallel(t)
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
url := "http://dummy.faketld/"
client.Get(url) // Note: doesn't hit network
if tr.req.Method != "GET" {
t.Errorf("expected method %q; got %q", "GET", tr.req.Method)
}
if tr.req.URL.String() != url {
t.Errorf("expected URL %q; got %q", url, tr.req.URL.String())
}
if tr.req.Header == nil {
t.Errorf("expected non-nil request Header")
}
}
func TestPostRequestFormat(t *testing.T) {
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
url := "http://dummy.faketld/"
json := `{"key":"value"}`
b := strings.NewReader(json)
client.Post(url, "application/json", b) // Note: doesn't hit network
if tr.req.Method != "POST" {
t.Errorf("got method %q, want %q", tr.req.Method, "POST")
}
if tr.req.URL.String() != url {
t.Errorf("got URL %q, want %q", tr.req.URL.String(), url)
}
if tr.req.Header == nil {
t.Fatalf("expected non-nil request Header")
}
if tr.req.Close {
t.Error("got Close true, want false")
}
if g, e := tr.req.ContentLength, int64(len(json)); g != e {
t.Errorf("got ContentLength %d, want %d", g, e)
}
}
func TestPostFormRequestFormat(t *testing.T) {
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
urlStr := "http://dummy.faketld/"
form := make(url.Values)
form.Set("foo", "bar")
form.Add("foo", "bar2")
form.Set("bar", "baz")
client.PostForm(urlStr, form) // Note: doesn't hit network
if tr.req.Method != "POST" {
t.Errorf("got method %q, want %q", tr.req.Method, "POST")
}
if tr.req.URL.String() != urlStr {
t.Errorf("got URL %q, want %q", tr.req.URL.String(), urlStr)
}
if tr.req.Header == nil {
t.Fatalf("expected non-nil request Header")
}
if g, e := tr.req.Header.Get("Content-Type"), "application/x-www-form-urlencoded"; g != e {
t.Errorf("got Content-Type %q, want %q", g, e)
}
if tr.req.Close {
t.Error("got Close true, want false")
}
// Depending on map iteration, body can be either of these.
expectedBody := "foo=bar&foo=bar2&bar=baz"
expectedBody1 := "bar=baz&foo=bar&foo=bar2"
if g, e := tr.req.ContentLength, int64(len(expectedBody)); g != e {
t.Errorf("got ContentLength %d, want %d", g, e)
}
bodyb, err := ioutil.ReadAll(tr.req.Body)
if err != nil {
t.Fatalf("ReadAll on req.Body: %v", err)
}
if g := string(bodyb); g != expectedBody && g != expectedBody1 {
t.Errorf("got body %q, want %q or %q", g, expectedBody, expectedBody1)
}
}
func TestClientRedirects(t *testing.T) {
setParallel(t)
defer afterTest(t)
var ts *httptest.Server
ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
n, _ := strconv.Atoi(r.FormValue("n"))
// Test Referer header. (7 is arbitrary position to test at)
if n == 7 {
if g, e := r.Referer(), ts.URL+"/?n=6"; e != g {
t.Errorf("on request ?n=7, expected referer of %q; got %q", e, g)
}
}
if n < 15 {
Redirect(w, r, fmt.Sprintf("/?n=%d", n+1), StatusTemporaryRedirect)
return
}
fmt.Fprintf(w, "n=%d", n)
}))
defer ts.Close()
c := ts.Client()
_, err := c.Get(ts.URL)
if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Get, expected error %q, got %q", e, g)
}
// HEAD request should also have the ability to follow redirects.
_, err = c.Head(ts.URL)
if e, g := "Head /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Head, expected error %q, got %q", e, g)
}
// Do should also follow redirects.
greq, _ := NewRequest("GET", ts.URL, nil)
_, err = c.Do(greq)
if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Do, expected error %q, got %q", e, g)
}
// Requests with an empty Method should also redirect (Issue 12705)
greq.Method = ""
_, err = c.Do(greq)
if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Do and empty Method, expected error %q, got %q", e, g)
}
var checkErr error
var lastVia []*Request
var lastReq *Request
c.CheckRedirect = func(req *Request, via []*Request) error {
lastReq = req
lastVia = via
return checkErr
}
res, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("Get error: %v", err)
}
res.Body.Close()
finalUrl := res.Request.URL.String()
if e, g := "<nil>", fmt.Sprintf("%v", err); e != g {
t.Errorf("with custom client, expected error %q, got %q", e, g)
}
if !strings.HasSuffix(finalUrl, "/?n=15") {
t.Errorf("expected final url to end in /?n=15; got url %q", finalUrl)
}
if e, g := 15, len(lastVia); e != g {
t.Errorf("expected lastVia to have contained %d elements; got %d", e, g)
}
// Test that Request.Cancel is propagated between requests (Issue 14053)
creq, _ := NewRequest("HEAD", ts.URL, nil)
cancel := make(chan struct{})
creq.Cancel = cancel
if _, err := c.Do(creq); err != nil {
t.Fatal(err)
}
if lastReq == nil {
t.Fatal("didn't see redirect")
}
if lastReq.Cancel != cancel {
t.Errorf("expected lastReq to have the cancel channel set on the initial req")
}
checkErr = errors.New("no redirects allowed")
res, err = c.Get(ts.URL)
if urlError, ok := err.(*url.Error); !ok || urlError.Err != checkErr {
t.Errorf("with redirects forbidden, expected a *url.Error with our 'no redirects allowed' error inside; got %#v (%q)", err, err)
}
if res == nil {
t.Fatalf("Expected a non-nil Response on CheckRedirect failure (https://golang.org/issue/3795)")
}
res.Body.Close()
if res.Header.Get("Location") == "" {
t.Errorf("no Location header in Response")
}
}
// Tests that Client redirects' contexts are derived from the original request's context.
func TestClientRedirectContext(t *testing.T) {
setParallel(t)
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
Redirect(w, r, "/", StatusTemporaryRedirect)
}))
defer ts.Close()
ctx, cancel := context.WithCancel(context.Background())
c := ts.Client()
c.CheckRedirect = func(req *Request, via []*Request) error {
cancel()
select {
case <-req.Context().Done():
return nil
case <-time.After(5 * time.Second):
return errors.New("redirected request's context never expired after root request canceled")
}
}
req, _ := NewRequest("GET", ts.URL, nil)
req = req.WithContext(ctx)
_, err := c.Do(req)
ue, ok := err.(*url.Error)
if !ok {
t.Fatalf("got error %T; want *url.Error", err)
}
if ue.Err != context.Canceled {
t.Errorf("url.Error.Err = %v; want %v", ue.Err, context.Canceled)
}
}
type redirectTest struct {
suffix string
want int // response code
redirectBody string
}
func TestPostRedirects(t *testing.T) {
postRedirectTests := []redirectTest{
{"/", 200, "first"},
{"/?code=301&next=302", 200, "c301"},
{"/?code=302&next=302", 200, "c302"},
{"/?code=303&next=301", 200, "c303wc301"}, // Issue 9348
{"/?code=304", 304, "c304"},
{"/?code=305", 305, "c305"},
{"/?code=307&next=303,308,302", 200, "c307"},
{"/?code=308&next=302,301", 200, "c308"},
{"/?code=404", 404, "c404"},
}
wantSegments := []string{
`POST / "first"`,
`POST /?code=301&next=302 "c301"`,
`GET /?code=302 ""`,
`GET / ""`,
`POST /?code=302&next=302 "c302"`,
`GET /?code=302 ""`,
`GET / ""`,
`POST /?code=303&next=301 "c303wc301"`,
`GET /?code=301 ""`,
`GET / ""`,
`POST /?code=304 "c304"`,
`POST /?code=305 "c305"`,
`POST /?code=307&next=303,308,302 "c307"`,
`POST /?code=303&next=308,302 "c307"`,
`GET /?code=308&next=302 ""`,
`GET /?code=302 "c307"`,
`GET / ""`,
`POST /?code=308&next=302,301 "c308"`,
`POST /?code=302&next=301 "c308"`,
`GET /?code=301 ""`,
`GET / ""`,
`POST /?code=404 "c404"`,
}
want := strings.Join(wantSegments, "\n")
testRedirectsByMethod(t, "POST", postRedirectTests, want)
}
func TestDeleteRedirects(t *testing.T) {
deleteRedirectTests := []redirectTest{
{"/", 200, "first"},
{"/?code=301&next=302,308", 200, "c301"},
{"/?code=302&next=302", 200, "c302"},
{"/?code=303", 200, "c303"},
{"/?code=307&next=301,308,303,302,304", 304, "c307"},
{"/?code=308&next=307", 200, "c308"},
{"/?code=404", 404, "c404"},
}
wantSegments := []string{
`DELETE / "first"`,
`DELETE /?code=301&next=302,308 "c301"`,
`GET /?code=302&next=308 ""`,
`GET /?code=308 ""`,
`GET / "c301"`,
`DELETE /?code=302&next=302 "c302"`,
`GET /?code=302 ""`,
`GET / ""`,
`DELETE /?code=303 "c303"`,
`GET / ""`,
`DELETE /?code=307&next=301,308,303,302,304 "c307"`,
`DELETE /?code=301&next=308,303,302,304 "c307"`,
`GET /?code=308&next=303,302,304 ""`,
`GET /?code=303&next=302,304 "c307"`,
`GET /?code=302&next=304 ""`,
`GET /?code=304 ""`,
`DELETE /?code=308&next=307 "c308"`,
`DELETE /?code=307 "c308"`,
`DELETE / "c308"`,
`DELETE /?code=404 "c404"`,
}
want := strings.Join(wantSegments, "\n")
testRedirectsByMethod(t, "DELETE", deleteRedirectTests, want)
}
func testRedirectsByMethod(t *testing.T, method string, table []redirectTest, want string) {
defer afterTest(t)
var log struct {
sync.Mutex
bytes.Buffer
}
var ts *httptest.Server
ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
log.Lock()
slurp, _ := ioutil.ReadAll(r.Body)
fmt.Fprintf(&log.Buffer, "%s %s %q", r.Method, r.RequestURI, slurp)
if cl := r.Header.Get("Content-Length"); r.Method == "GET" && len(slurp) == 0 && (r.ContentLength != 0 || cl != "") {
fmt.Fprintf(&log.Buffer, " (but with body=%T, content-length = %v, %q)", r.Body, r.ContentLength, cl)
}
log.WriteByte('\n')
log.Unlock()
urlQuery := r.URL.Query()
if v := urlQuery.Get("code"); v != "" {
location := ts.URL
if final := urlQuery.Get("next"); final != "" {
splits := strings.Split(final, ",")
first, rest := splits[0], splits[1:]
location = fmt.Sprintf("%s?code=%s", location, first)
if len(rest) > 0 {
location = fmt.Sprintf("%s&next=%s", location, strings.Join(rest, ","))
}
}
code, _ := strconv.Atoi(v)
if code/100 == 3 {
w.Header().Set("Location", location)
}
w.WriteHeader(code)
}
}))
defer ts.Close()
c := ts.Client()
for _, tt := range table {
content := tt.redirectBody
req, _ := NewRequest(method, ts.URL+tt.suffix, strings.NewReader(content))
req.GetBody = func() (io.ReadCloser, error) { return ioutil.NopCloser(strings.NewReader(content)), nil }
res, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
if res.StatusCode != tt.want {
t.Errorf("POST %s: status code = %d; want %d", tt.suffix, res.StatusCode, tt.want)
}
}
log.Lock()
got := log.String()
log.Unlock()
got = strings.TrimSpace(got)
want = strings.TrimSpace(want)
if got != want {
got, want, lines := removeCommonLines(got, want)
t.Errorf("Log differs after %d common lines.\n\nGot:\n%s\n\nWant:\n%s\n", lines, got, want)
}
}
func removeCommonLines(a, b string) (asuffix, bsuffix string, commonLines int) {
for {
nl := strings.IndexByte(a, '\n')
if nl < 0 {
return a, b, commonLines
}
line := a[:nl+1]
if !strings.HasPrefix(b, line) {
return a, b, commonLines
}
commonLines++
a = a[len(line):]
b = b[len(line):]
}
}
func TestClientRedirectUseResponse(t *testing.T) {
setParallel(t)
defer afterTest(t)
const body = "Hello, world."
var ts *httptest.Server
ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if strings.Contains(r.URL.Path, "/other") {
io.WriteString(w, "wrong body")
} else {
w.Header().Set("Location", ts.URL+"/other")
w.WriteHeader(StatusFound)
io.WriteString(w, body)
}
}))
defer ts.Close()
c := ts.Client()
c.CheckRedirect = func(req *Request, via []*Request) error {
if req.Response == nil {
t.Error("expected non-nil Request.Response")
}
return ErrUseLastResponse
}
res, err := c.Get(ts.URL)
if err != nil {
t.Fatal(err)
}
if res.StatusCode != StatusFound {
t.Errorf("status = %d; want %d", res.StatusCode, StatusFound)
}
defer res.Body.Close()
slurp, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
if string(slurp) != body {
t.Errorf("body = %q; want %q", slurp, body)
}
}
// Issue 17773: don't follow a 308 (or 307) if the response doesn't
// have a Location header.
func TestClientRedirect308NoLocation(t *testing.T) {
setParallel(t)
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header().Set("Foo", "Bar")
w.WriteHeader(308)
}))
defer ts.Close()
c := ts.Client()
res, err := c.Get(ts.URL)
if err != nil {
t.Fatal(err)
}
res.Body.Close()
if res.StatusCode != 308 {
t.Errorf("status = %d; want %d", res.StatusCode, 308)
}
if got := res.Header.Get("Foo"); got != "Bar" {
t.Errorf("Foo header = %q; want Bar", got)
}
}
// Don't follow a 307/308 if we can't resent the request body.
func TestClientRedirect308NoGetBody(t *testing.T) {
setParallel(t)
defer afterTest(t)
const fakeURL = "https://localhost:1234/" // won't be hit
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header().Set("Location", fakeURL)
w.WriteHeader(308)
}))
defer ts.Close()
req, err := NewRequest("POST", ts.URL, strings.NewReader("some body"))
if err != nil {
t.Fatal(err)
}
c := ts.Client()
req.GetBody = nil // so it can't rewind.
res, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
res.Body.Close()
if res.StatusCode != 308 {
t.Errorf("status = %d; want %d", res.StatusCode, 308)
}
if got := res.Header.Get("Location"); got != fakeURL {
t.Errorf("Location header = %q; want %q", got, fakeURL)
}
}
var expectedCookies = []*Cookie{
{Name: "ChocolateChip", Value: "tasty"},
{Name: "First", Value: "Hit"},
{Name: "Second", Value: "Hit"},
}
var echoCookiesRedirectHandler = HandlerFunc(func(w ResponseWriter, r *Request) {
for _, cookie := range r.Cookies() {
SetCookie(w, cookie)
}
if r.URL.Path == "/" {
SetCookie(w, expectedCookies[1])
Redirect(w, r, "/second", StatusMovedPermanently)
} else {
SetCookie(w, expectedCookies[2])
w.Write([]byte("hello"))
}
})
func TestClientSendsCookieFromJar(t *testing.T) {
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
client.Jar = &TestJar{perURL: make(map[string][]*Cookie)}
us := "http://dummy.faketld/"
u, _ := url.Parse(us)
client.Jar.SetCookies(u, expectedCookies)
client.Get(us) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
client.Head(us) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
client.Post(us, "text/plain", strings.NewReader("body")) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
client.PostForm(us, url.Values{}) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
req, _ := NewRequest("GET", us, nil)
client.Do(req) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
req, _ = NewRequest("POST", us, nil)
client.Do(req) // Note: doesn't hit network
matchReturnedCookies(t, expectedCookies, tr.req.Cookies())
}
// Just enough correctness for our redirect tests. Uses the URL.Host as the
// scope of all cookies.
type TestJar struct {
m sync.Mutex
perURL map[string][]*Cookie
}
func (j *TestJar) SetCookies(u *url.URL, cookies []*Cookie) {
j.m.Lock()
defer j.m.Unlock()
if j.perURL == nil {
j.perURL = make(map[string][]*Cookie)
}
j.perURL[u.Host] = cookies
}
func (j *TestJar) Cookies(u *url.URL) []*Cookie {
j.m.Lock()
defer j.m.Unlock()
return j.perURL[u.Host]
}
func TestRedirectCookiesJar(t *testing.T) {
setParallel(t)
defer afterTest(t)
var ts *httptest.Server
ts = httptest.NewServer(echoCookiesRedirectHandler)
defer ts.Close()
c := ts.Client()
c.Jar = new(TestJar)
u, _ := url.Parse(ts.URL)
c.Jar.SetCookies(u, []*Cookie{expectedCookies[0]})
resp, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("Get: %v", err)
}
resp.Body.Close()
matchReturnedCookies(t, expectedCookies, resp.Cookies())
}
func matchReturnedCookies(t *testing.T, expected, given []*Cookie) {
if len(given) != len(expected) {
t.Logf("Received cookies: %v", given)
t.Errorf("Expected %d cookies, got %d", len(expected), len(given))
}
for _, ec := range expected {
foundC := false
for _, c := range given {
if ec.Name == c.Name && ec.Value == c.Value {
foundC = true
break
}
}
if !foundC {
t.Errorf("Missing cookie %v", ec)
}
}
}
func TestJarCalls(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
pathSuffix := r.RequestURI[1:]
if r.RequestURI == "/nosetcookie" {
return // don't set cookies for this path
}
SetCookie(w, &Cookie{Name: "name" + pathSuffix, Value: "val" + pathSuffix})
if r.RequestURI == "/" {
Redirect(w, r, "http://secondhost.fake/secondpath", 302)
}
}))
defer ts.Close()
jar := new(RecordingJar)
c := ts.Client()
c.Jar = jar
c.Transport.(*Transport).Dial = func(_ string, _ string) (net.Conn, error) {
return net.Dial("tcp", ts.Listener.Addr().String())
}
_, err := c.Get("http://firsthost.fake/")
if err != nil {
t.Fatal(err)
}
_, err = c.Get("http://firsthost.fake/nosetcookie")
if err != nil {
t.Fatal(err)
}
got := jar.log.String()
want := `Cookies("http://firsthost.fake/")
SetCookie("http://firsthost.fake/", [name=val])
Cookies("http://secondhost.fake/secondpath")
SetCookie("http://secondhost.fake/secondpath", [namesecondpath=valsecondpath])
Cookies("http://firsthost.fake/nosetcookie")
`
if got != want {
t.Errorf("Got Jar calls:\n%s\nWant:\n%s", got, want)
}
}
// RecordingJar keeps a log of calls made to it, without
// tracking any cookies.
type RecordingJar struct {
mu sync.Mutex
log bytes.Buffer
}
func (j *RecordingJar) SetCookies(u *url.URL, cookies []*Cookie) {
j.logf("SetCookie(%q, %v)\n", u, cookies)
}
func (j *RecordingJar) Cookies(u *url.URL) []*Cookie {
j.logf("Cookies(%q)\n", u)
return nil
}
func (j *RecordingJar) logf(format string, args ...interface{}) {
j.mu.Lock()
defer j.mu.Unlock()
fmt.Fprintf(&j.log, format, args...)
}
func TestStreamingGet_h1(t *testing.T) { testStreamingGet(t, h1Mode) }
func TestStreamingGet_h2(t *testing.T) { testStreamingGet(t, h2Mode) }
func testStreamingGet(t *testing.T, h2 bool) {
defer afterTest(t)
say := make(chan string)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
w.(Flusher).Flush()
for str := range say {
w.Write([]byte(str))
w.(Flusher).Flush()
}
}))
defer cst.close()
c := cst.c
res, err := c.Get(cst.ts.URL)
if err != nil {
t.Fatal(err)
}
var buf [10]byte
for _, str := range []string{"i", "am", "also", "known", "as", "comet"} {
say <- str
n, err := io.ReadFull(res.Body, buf[0:len(str)])
if err != nil {
t.Fatalf("ReadFull on %q: %v", str, err)
}
if n != len(str) {
t.Fatalf("Receiving %q, only read %d bytes", str, n)
}
got := string(buf[0:n])
if got != str {
t.Fatalf("Expected %q, got %q", str, got)
}
}
close(say)
_, err = io.ReadFull(res.Body, buf[0:1])
if err != io.EOF {
t.Fatalf("at end expected EOF, got %v", err)
}
}
type writeCountingConn struct {
net.Conn
count *int
}
func (c *writeCountingConn) Write(p []byte) (int, error) {
*c.count++
return c.Conn.Write(p)
}
// TestClientWrites verifies that client requests are buffered and we
// don't send a TCP packet per line of the http request + body.
func TestClientWrites(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
}))
defer ts.Close()
writes := 0
dialer := func(netz string, addr string) (net.Conn, error) {
c, err := net.Dial(netz, addr)
if err == nil {
c = &writeCountingConn{c, &writes}
}
return c, err
}
c := ts.Client()
c.Transport.(*Transport).Dial = dialer
_, err := c.Get(ts.URL)
if err != nil {
t.Fatal(err)
}
if writes != 1 {
t.Errorf("Get request did %d Write calls, want 1", writes)
}
writes = 0
_, err = c.PostForm(ts.URL, url.Values{"foo": {"bar"}})
if err != nil {
t.Fatal(err)
}
if writes != 1 {
t.Errorf("Post request did %d Write calls, want 1", writes)
}
}
func TestClientInsecureTransport(t *testing.T) {
setParallel(t)
defer afterTest(t)
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
}))
errc := make(chanWriter, 10) // but only expecting 1
ts.Config.ErrorLog = log.New(errc, "", 0)
defer ts.Close()
// TODO(bradfitz): add tests for skipping hostname checks too?
// would require a new cert for testing, and probably
// redundant with these tests.
c := ts.Client()
for _, insecure := range []bool{true, false} {
c.Transport.(*Transport).TLSClientConfig = &tls.Config{
InsecureSkipVerify: insecure,
}
res, err := c.Get(ts.URL)
if (err == nil) != insecure {
t.Errorf("insecure=%v: got unexpected err=%v", insecure, err)
}
if res != nil {
res.Body.Close()
}
}
select {
case v := <-errc:
if !strings.Contains(v, "TLS handshake error") {
t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", v)
}
case <-time.After(5 * time.Second):
t.Errorf("timeout waiting for logged error")
}
}
func TestClientErrorWithRequestURI(t *testing.T) {
defer afterTest(t)
req, _ := NewRequest("GET", "http://localhost:1234/", nil)
req.RequestURI = "/this/field/is/illegal/and/should/error/"
_, err := DefaultClient.Do(req)
if err == nil {
t.Fatalf("expected an error")
}
if !strings.Contains(err.Error(), "RequestURI") {
t.Errorf("wanted error mentioning RequestURI; got error: %v", err)
}
}
func TestClientWithCorrectTLSServerName(t *testing.T) {
defer afterTest(t)
const serverName = "example.com"
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if r.TLS.ServerName != serverName {
t.Errorf("expected client to set ServerName %q, got: %q", serverName, r.TLS.ServerName)
}
}))
defer ts.Close()
c := ts.Client()
c.Transport.(*Transport).TLSClientConfig.ServerName = serverName
if _, err := c.Get(ts.URL); err != nil {
t.Fatalf("expected successful TLS connection, got error: %v", err)
}
}
func TestClientWithIncorrectTLSServerName(t *testing.T) {
defer afterTest(t)
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
defer ts.Close()
errc := make(chanWriter, 10) // but only expecting 1
ts.Config.ErrorLog = log.New(errc, "", 0)
c := ts.Client()
c.Transport.(*Transport).TLSClientConfig.ServerName = "badserver"
_, err := c.Get(ts.URL)
if err == nil {
t.Fatalf("expected an error")
}
if !strings.Contains(err.Error(), "127.0.0.1") || !strings.Contains(err.Error(), "badserver") {
t.Errorf("wanted error mentioning 127.0.0.1 and badserver; got error: %v", err)
}
select {
case v := <-errc:
if !strings.Contains(v, "TLS handshake error") {
t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", v)
}
case <-time.After(5 * time.Second):
t.Errorf("timeout waiting for logged error")
}
}
// Test for golang.org/issue/5829; the Transport should respect TLSClientConfig.ServerName
// when not empty.
//
// tls.Config.ServerName (non-empty, set to "example.com") takes
// precedence over "some-other-host.tld" which previously incorrectly
// took precedence. We don't actually connect to (or even resolve)
// "some-other-host.tld", though, because of the Transport.Dial hook.
//
// The httptest.Server has a cert with "example.com" as its name.
func TestTransportUsesTLSConfigServerName(t *testing.T) {
defer afterTest(t)
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
}))
defer ts.Close()
c := ts.Client()
tr := c.Transport.(*Transport)
tr.TLSClientConfig.ServerName = "example.com" // one of httptest's Server cert names
tr.Dial = func(netw, addr string) (net.Conn, error) {
return net.Dial(netw, ts.Listener.Addr().String())
}
res, err := c.Get("https://some-other-host.tld/")
if err != nil {
t.Fatal(err)
}
res.Body.Close()
}
func TestResponseSetsTLSConnectionState(t *testing.T) {
defer afterTest(t)
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
}))
defer ts.Close()
c := ts.Client()
tr := c.Transport.(*Transport)
tr.TLSClientConfig.CipherSuites = []uint16{tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA}
tr.Dial = func(netw, addr string) (net.Conn, error) {
return net.Dial(netw, ts.Listener.Addr().String())
}
res, err := c.Get("https://example.com/")
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
if res.TLS == nil {
t.Fatal("Response didn't set TLS Connection State.")
}
if got, want := res.TLS.CipherSuite, tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA; got != want {
t.Errorf("TLS Cipher Suite = %d; want %d", got, want)
}
}
// Check that an HTTPS client can interpret a particular TLS error
// to determine that the server is speaking HTTP.
// See golang.org/issue/11111.
func TestHTTPSClientDetectsHTTPServer(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
ts.Config.ErrorLog = quietLog
defer ts.Close()
_, err := Get(strings.Replace(ts.URL, "http", "https", 1))
if got := err.Error(); !strings.Contains(got, "HTTP response to HTTPS client") {
t.Fatalf("error = %q; want error indicating HTTP response to HTTPS request", got)
}
}
// Verify Response.ContentLength is populated. https://golang.org/issue/4126
func TestClientHeadContentLength_h1(t *testing.T) {
testClientHeadContentLength(t, h1Mode)
}
func TestClientHeadContentLength_h2(t *testing.T) {
testClientHeadContentLength(t, h2Mode)
}
func testClientHeadContentLength(t *testing.T, h2 bool) {
defer afterTest(t)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
if v := r.FormValue("cl"); v != "" {
w.Header().Set("Content-Length", v)
}
}))
defer cst.close()
tests := []struct {
suffix string
want int64
}{
{"/?cl=1234", 1234},
{"/?cl=0", 0},
{"", -1},
}
for _, tt := range tests {
req, _ := NewRequest("HEAD", cst.ts.URL+tt.suffix, nil)
res, err := cst.c.Do(req)
if err != nil {
t.Fatal(err)
}
if res.ContentLength != tt.want {
t.Errorf("Content-Length = %d; want %d", res.ContentLength, tt.want)
}
bs, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
if len(bs) != 0 {
t.Errorf("Unexpected content: %q", bs)
}
}
}
func TestEmptyPasswordAuth(t *testing.T) {
setParallel(t)
defer afterTest(t)
gopher := "gopher"
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
auth := r.Header.Get("Authorization")
if strings.HasPrefix(auth, "Basic ") {
encoded := auth[6:]
decoded, err := base64.StdEncoding.DecodeString(encoded)
if err != nil {
t.Fatal(err)
}
expected := gopher + ":"
s := string(decoded)
if expected != s {
t.Errorf("Invalid Authorization header. Got %q, wanted %q", s, expected)
}
} else {
t.Errorf("Invalid auth %q", auth)
}
}))
defer ts.Close()
req, err := NewRequest("GET", ts.URL, nil)
if err != nil {
t.Fatal(err)
}
req.URL.User = url.User(gopher)
c := ts.Client()
resp, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
defer resp.Body.Close()
}
func TestBasicAuth(t *testing.T) {
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
url := "http://My%20User:My%20Pass@dummy.faketld/"
expected := "My User:My Pass"
client.Get(url)
if tr.req.Method != "GET" {
t.Errorf("got method %q, want %q", tr.req.Method, "GET")
}
if tr.req.URL.String() != url {
t.Errorf("got URL %q, want %q", tr.req.URL.String(), url)
}
if tr.req.Header == nil {
t.Fatalf("expected non-nil request Header")
}
auth := tr.req.Header.Get("Authorization")
if strings.HasPrefix(auth, "Basic ") {
encoded := auth[6:]
decoded, err := base64.StdEncoding.DecodeString(encoded)
if err != nil {
t.Fatal(err)
}
s := string(decoded)
if expected != s {
t.Errorf("Invalid Authorization header. Got %q, wanted %q", s, expected)
}
} else {
t.Errorf("Invalid auth %q", auth)
}
}
func TestBasicAuthHeadersPreserved(t *testing.T) {
defer afterTest(t)
tr := &recordingTransport{}
client := &Client{Transport: tr}
// If Authorization header is provided, username in URL should not override it
url := "http://My%20User@dummy.faketld/"
req, err := NewRequest("GET", url, nil)
if err != nil {
t.Fatal(err)
}
req.SetBasicAuth("My User", "My Pass")
expected := "My User:My Pass"
client.Do(req)
if tr.req.Method != "GET" {
t.Errorf("got method %q, want %q", tr.req.Method, "GET")
}
if tr.req.URL.String() != url {
t.Errorf("got URL %q, want %q", tr.req.URL.String(), url)
}
if tr.req.Header == nil {
t.Fatalf("expected non-nil request Header")
}
auth := tr.req.Header.Get("Authorization")
if strings.HasPrefix(auth, "Basic ") {
encoded := auth[6:]
decoded, err := base64.StdEncoding.DecodeString(encoded)
if err != nil {
t.Fatal(err)
}
s := string(decoded)
if expected != s {
t.Errorf("Invalid Authorization header. Got %q, wanted %q", s, expected)
}
} else {
t.Errorf("Invalid auth %q", auth)
}
}
func TestClientTimeout_h1(t *testing.T) { testClientTimeout(t, h1Mode) }
func TestClientTimeout_h2(t *testing.T) { testClientTimeout(t, h2Mode) }
func testClientTimeout(t *testing.T, h2 bool) {
setParallel(t)
defer afterTest(t)
testDone := make(chan struct{}) // closed in defer below
sawRoot := make(chan bool, 1)
sawSlow := make(chan bool, 1)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
if r.URL.Path == "/" {
sawRoot <- true
Redirect(w, r, "/slow", StatusFound)
return
}
if r.URL.Path == "/slow" {
sawSlow <- true
w.Write([]byte("Hello"))
w.(Flusher).Flush()
<-testDone
return
}
}))
defer cst.close()
defer close(testDone) // before cst.close, to unblock /slow handler
// 200ms should be long enough to get a normal request (the /
// handler), but not so long that it makes the test slow.
const timeout = 200 * time.Millisecond
cst.c.Timeout = timeout
res, err := cst.c.Get(cst.ts.URL)
if err != nil {
if strings.Contains(err.Error(), "Client.Timeout") {
t.Skipf("host too slow to get fast resource in %v", timeout)
}
t.Fatal(err)
}
select {
case <-sawRoot:
// good.
default:
t.Fatal("handler never got / request")
}
select {
case <-sawSlow:
// good.
default:
t.Fatal("handler never got /slow request")
}
errc := make(chan error, 1)
go func() {
_, err := ioutil.ReadAll(res.Body)
errc <- err
res.Body.Close()
}()
const failTime = 5 * time.Second
select {
case err := <-errc:
if err == nil {
t.Fatal("expected error from ReadAll")
}
ne, ok := err.(net.Error)
if !ok {
t.Errorf("error value from ReadAll was %T; expected some net.Error", err)
} else if !ne.Timeout() {
t.Errorf("net.Error.Timeout = false; want true")
}
if got := ne.Error(); !strings.Contains(got, "Client.Timeout exceeded") {
t.Errorf("error string = %q; missing timeout substring", got)
}
case <-time.After(failTime):
t.Errorf("timeout after %v waiting for timeout of %v", failTime, timeout)
}
}
func TestClientTimeout_Headers_h1(t *testing.T) { testClientTimeout_Headers(t, h1Mode) }
func TestClientTimeout_Headers_h2(t *testing.T) { testClientTimeout_Headers(t, h2Mode) }
// Client.Timeout firing before getting to the body
func testClientTimeout_Headers(t *testing.T, h2 bool) {
setParallel(t)
defer afterTest(t)
donec := make(chan bool, 1)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
<-donec
}))
defer cst.close()
// Note that we use a channel send here and not a close.
// The race detector doesn't know that we're waiting for a timeout
// and thinks that the waitgroup inside httptest.Server is added to concurrently
// with us closing it. If we timed out immediately, we could close the testserver
// before we entered the handler. We're not timing out immediately and there's
// no way we would be done before we entered the handler, but the race detector
// doesn't know this, so synchronize explicitly.
defer func() { donec <- true }()
cst.c.Timeout = 5 * time.Millisecond
res, err := cst.c.Get(cst.ts.URL)
if err == nil {
res.Body.Close()
t.Fatal("got response from Get; expected error")
}
if _, ok := err.(*url.Error); !ok {
t.Fatalf("Got error of type %T; want *url.Error", err)
}
ne, ok := err.(net.Error)
if !ok {
t.Fatalf("Got error of type %T; want some net.Error", err)
}
if !ne.Timeout() {
t.Error("net.Error.Timeout = false; want true")
}
if got := ne.Error(); !strings.Contains(got, "Client.Timeout exceeded") {
t.Errorf("error string = %q; missing timeout substring", got)
}
}
// Issue 16094: if Client.Timeout is set but not hit, a Timeout error shouldn't be
// returned.
func TestClientTimeoutCancel(t *testing.T) {
setParallel(t)
defer afterTest(t)
testDone := make(chan struct{})
ctx, cancel := context.WithCancel(context.Background())
cst := newClientServerTest(t, h1Mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.(Flusher).Flush()
<-testDone
}))
defer cst.close()
defer close(testDone)
cst.c.Timeout = 1 * time.Hour
req, _ := NewRequest("GET", cst.ts.URL, nil)
req.Cancel = ctx.Done()
res, err := cst.c.Do(req)
if err != nil {
t.Fatal(err)
}
cancel()
_, err = io.Copy(ioutil.Discard, res.Body)
if err != ExportErrRequestCanceled {
t.Fatalf("error = %v; want errRequestCanceled", err)
}
}
func TestClientRedirectEatsBody_h1(t *testing.T) { testClientRedirectEatsBody(t, h1Mode) }
func TestClientRedirectEatsBody_h2(t *testing.T) { testClientRedirectEatsBody(t, h2Mode) }
func testClientRedirectEatsBody(t *testing.T, h2 bool) {
setParallel(t)
defer afterTest(t)
saw := make(chan string, 2)
cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
saw <- r.RemoteAddr
if r.URL.Path == "/" {
Redirect(w, r, "/foo", StatusFound) // which includes a body
}
}))
defer cst.close()
res, err := cst.c.Get(cst.ts.URL)
if err != nil {
t.Fatal(err)
}
_, err = ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
t.Fatal(err)
}
var first string
select {
case first = <-saw:
default:
t.Fatal("server didn't see a request")
}
var second string
select {
case second = <-saw:
default:
t.Fatal("server didn't see a second request")
}
if first != second {
t.Fatal("server saw different client ports before & after the redirect")
}
}
// eofReaderFunc is an io.Reader that runs itself, and then returns io.EOF.
type eofReaderFunc func()
func (f eofReaderFunc) Read(p []byte) (n int, err error) {
f()
return 0, io.EOF
}
func TestReferer(t *testing.T) {
tests := []struct {
lastReq, newReq string // from -> to URLs
want string
}{
// don't send user:
{"http://gopher@test.com", "http://link.com", "http://test.com"},
{"https://gopher@test.com", "https://link.com", "https://test.com"},
// don't send a user and password:
{"http://gopher:go@test.com", "http://link.com", "http://test.com"},
{"https://gopher:go@test.com", "https://link.com", "https://test.com"},
// nothing to do:
{"http://test.com", "http://link.com", "http://test.com"},
{"https://test.com", "https://link.com", "https://test.com"},
// https to http doesn't send a referer:
{"https://test.com", "http://link.com", ""},
{"https://gopher:go@test.com", "http://link.com", ""},
}
for _, tt := range tests {
l, err := url.Parse(tt.lastReq)
if err != nil {
t.Fatal(err)
}
n, err := url.Parse(tt.newReq)
if err != nil {
t.Fatal(err)
}
r := ExportRefererForURL(l, n)
if r != tt.want {
t.Errorf("refererForURL(%q, %q) = %q; want %q", tt.lastReq, tt.newReq, r, tt.want)
}
}
}
// issue15577Tripper returns a Response with a redirect response
// header and doesn't populate its Response.Request field.
type issue15577Tripper struct{}
func (issue15577Tripper) RoundTrip(*Request) (*Response, error) {
resp := &Response{
StatusCode: 303,
Header: map[string][]string{"Location": {"http://www.example.com/"}},
Body: ioutil.NopCloser(strings.NewReader("")),
}
return resp, nil
}
// Issue 15577: don't assume the roundtripper's response populates its Request field.
func TestClientRedirectResponseWithoutRequest(t *testing.T) {
c := &Client{
CheckRedirect: func(*Request, []*Request) error { return fmt.Errorf("no redirects!") },
Transport: issue15577Tripper{},
}
// Check that this doesn't crash:
c.Get("http://dummy.tld")
}
// Issue 4800: copy (some) headers when Client follows a redirect.
func TestClientCopyHeadersOnRedirect(t *testing.T) {
const (
ua = "some-agent/1.2"
xfoo = "foo-val"
)
var ts2URL string
ts1 := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
want := Header{
"User-Agent": []string{ua},
"X-Foo": []string{xfoo},
"Referer": []string{ts2URL},
"Accept-Encoding": []string{"gzip"},
}
if !reflect.DeepEqual(r.Header, want) {
t.Errorf("Request.Header = %#v; want %#v", r.Header, want)
}
if t.Failed() {
w.Header().Set("Result", "got errors")
} else {
w.Header().Set("Result", "ok")
}
}))
defer ts1.Close()
ts2 := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
Redirect(w, r, ts1.URL, StatusFound)
}))
defer ts2.Close()
ts2URL = ts2.URL
c := ts1.Client()
c.CheckRedirect = func(r *Request, via []*Request) error {
want := Header{
"User-Agent": []string{ua},
"X-Foo": []string{xfoo},
"Referer": []string{ts2URL},
}
if !reflect.DeepEqual(r.Header, want) {
t.Errorf("CheckRedirect Request.Header = %#v; want %#v", r.Header, want)
}
return nil
}
req, _ := NewRequest("GET", ts2.URL, nil)
req.Header.Add("User-Agent", ua)
req.Header.Add("X-Foo", xfoo)
req.Header.Add("Cookie", "foo=bar")
req.Header.Add("Authorization", "secretpassword")
res, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
if res.StatusCode != 200 {
t.Fatal(res.Status)
}
if got := res.Header.Get("Result"); got != "ok" {
t.Errorf("result = %q; want ok", got)
}
}
// Issue 22233: copy host when Client follows a relative redirect.
func TestClientCopyHostOnRedirect(t *testing.T) {
// Virtual hostname: should not receive any request.
virtual := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
t.Errorf("Virtual host received request %v", r.URL)
w.WriteHeader(403)
io.WriteString(w, "should not see this response")
}))
defer virtual.Close()
virtualHost := strings.TrimPrefix(virtual.URL, "http://")
t.Logf("Virtual host is %v", virtualHost)
// Actual hostname: should not receive any request.
const wantBody = "response body"
var tsURL string
var tsHost string
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
switch r.URL.Path {
case "/":
// Relative redirect.
if r.Host != virtualHost {
t.Errorf("Serving /: Request.Host = %#v; want %#v", r.Host, virtualHost)
w.WriteHeader(404)
return
}
w.Header().Set("Location", "/hop")
w.WriteHeader(302)
case "/hop":
// Absolute redirect.
if r.Host != virtualHost {
t.Errorf("Serving /hop: Request.Host = %#v; want %#v", r.Host, virtualHost)
w.WriteHeader(404)
return
}
w.Header().Set("Location", tsURL+"/final")
w.WriteHeader(302)
case "/final":
if r.Host != tsHost {
t.Errorf("Serving /final: Request.Host = %#v; want %#v", r.Host, tsHost)
w.WriteHeader(404)
return
}
w.WriteHeader(200)
io.WriteString(w, wantBody)
default:
t.Errorf("Serving unexpected path %q", r.URL.Path)
w.WriteHeader(404)
}
}))
defer ts.Close()
tsURL = ts.URL
tsHost = strings.TrimPrefix(ts.URL, "http://")
t.Logf("Server host is %v", tsHost)
c := ts.Client()
req, _ := NewRequest("GET", ts.URL, nil)
req.Host = virtualHost
resp, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
t.Fatal(resp.Status)
}
if got, err := ioutil.ReadAll(resp.Body); err != nil || string(got) != wantBody {
t.Errorf("body = %q; want %q", got, wantBody)
}
}
// Issue 17494: cookies should be altered when Client follows redirects.
func TestClientAltersCookiesOnRedirect(t *testing.T) {
cookieMap := func(cs []*Cookie) map[string][]string {
m := make(map[string][]string)
for _, c := range cs {
m[c.Name] = append(m[c.Name], c.Value)
}
return m
}
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
var want map[string][]string
got := cookieMap(r.Cookies())
c, _ := r.Cookie("Cycle")
switch c.Value {
case "0":
want = map[string][]string{
"Cookie1": {"OldValue1a", "OldValue1b"},
"Cookie2": {"OldValue2"},
"Cookie3": {"OldValue3a", "OldValue3b"},
"Cookie4": {"OldValue4"},
"Cycle": {"0"},
}
SetCookie(w, &Cookie{Name: "Cycle", Value: "1", Path: "/"})
SetCookie(w, &Cookie{Name: "Cookie2", Path: "/", MaxAge: -1}) // Delete cookie from Header
Redirect(w, r, "/", StatusFound)
case "1":
want = map[string][]string{
"Cookie1": {"OldValue1a", "OldValue1b"},
"Cookie3": {"OldValue3a", "OldValue3b"},
"Cookie4": {"OldValue4"},
"Cycle": {"1"},
}
SetCookie(w, &Cookie{Name: "Cycle", Value: "2", Path: "/"})
SetCookie(w, &Cookie{Name: "Cookie3", Value: "NewValue3", Path: "/"}) // Modify cookie in Header
SetCookie(w, &Cookie{Name: "Cookie4", Value: "NewValue4", Path: "/"}) // Modify cookie in Jar
Redirect(w, r, "/", StatusFound)
case "2":
want = map[string][]string{
"Cookie1": {"OldValue1a", "OldValue1b"},
"Cookie3": {"NewValue3"},
"Cookie4": {"NewValue4"},
"Cycle": {"2"},
}
SetCookie(w, &Cookie{Name: "Cycle", Value: "3", Path: "/"})
SetCookie(w, &Cookie{Name: "Cookie5", Value: "NewValue5", Path: "/"}) // Insert cookie into Jar
Redirect(w, r, "/", StatusFound)
case "3":
want = map[string][]string{
"Cookie1": {"OldValue1a", "OldValue1b"},
"Cookie3": {"NewValue3"},
"Cookie4": {"NewValue4"},
"Cookie5": {"NewValue5"},
"Cycle": {"3"},
}
// Don't redirect to ensure the loop ends.
default:
t.Errorf("unexpected redirect cycle")
return
}
if !reflect.DeepEqual(got, want) {
t.Errorf("redirect %s, Cookie = %v, want %v", c.Value, got, want)
}
}))
defer ts.Close()
jar, _ := cookiejar.New(nil)
c := ts.Client()
c.Jar = jar
u, _ := url.Parse(ts.URL)
req, _ := NewRequest("GET", ts.URL, nil)
req.AddCookie(&Cookie{Name: "Cookie1", Value: "OldValue1a"})
req.AddCookie(&Cookie{Name: "Cookie1", Value: "OldValue1b"})
req.AddCookie(&Cookie{Name: "Cookie2", Value: "OldValue2"})
req.AddCookie(&Cookie{Name: "Cookie3", Value: "OldValue3a"})
req.AddCookie(&Cookie{Name: "Cookie3", Value: "OldValue3b"})
jar.SetCookies(u, []*Cookie{{Name: "Cookie4", Value: "OldValue4", Path: "/"}})
jar.SetCookies(u, []*Cookie{{Name: "Cycle", Value: "0", Path: "/"}})
res, err := c.Do(req)
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
if res.StatusCode != 200 {
t.Fatal(res.Status)
}
}
// Part of Issue 4800
func TestShouldCopyHeaderOnRedirect(t *testing.T) {
tests := []struct {
header string
initialURL string
destURL string
want bool
}{
{"User-Agent", "http://foo.com/", "http://bar.com/", true},
{"X-Foo", "http://foo.com/", "http://bar.com/", true},
// Sensitive headers:
{"cookie", "http://foo.com/", "http://bar.com/", false},
{"cookie2", "http://foo.com/", "http://bar.com/", false},
{"authorization", "http://foo.com/", "http://bar.com/", false},
{"www-authenticate", "http://foo.com/", "http://bar.com/", false},
// But subdomains should work:
{"www-authenticate", "http://foo.com/", "http://foo.com/", true},
{"www-authenticate", "http://foo.com/", "http://sub.foo.com/", true},
{"www-authenticate", "http://foo.com/", "http://notfoo.com/", false},
{"www-authenticate", "http://foo.com/", "https://foo.com/", false},
{"www-authenticate", "http://foo.com:80/", "http://foo.com/", true},
{"www-authenticate", "http://foo.com:80/", "http://sub.foo.com/", true},
{"www-authenticate", "http://foo.com:443/", "https://foo.com/", true},
{"www-authenticate", "http://foo.com:443/", "https://sub.foo.com/", true},
{"www-authenticate", "http://foo.com:1234/", "http://foo.com/", false},
}
for i, tt := range tests {
u0, err := url.Parse(tt.initialURL)
if err != nil {
t.Errorf("%d. initial URL %q parse error: %v", i, tt.initialURL, err)
continue
}
u1, err := url.Parse(tt.destURL)
if err != nil {
t.Errorf("%d. dest URL %q parse error: %v", i, tt.destURL, err)
continue
}
got := Export_shouldCopyHeaderOnRedirect(tt.header, u0, u1)
if got != tt.want {
t.Errorf("%d. shouldCopyHeaderOnRedirect(%q, %q => %q) = %v; want %v",
i, tt.header, tt.initialURL, tt.destURL, got, tt.want)
}
}
}
func TestClientRedirectTypes(t *testing.T) {
setParallel(t)
defer afterTest(t)
tests := [...]struct {
method string
serverStatus int
wantMethod string // desired subsequent client method
}{
0: {method: "POST", serverStatus: 301, wantMethod: "GET"},
1: {method: "POST", serverStatus: 302, wantMethod: "GET"},
2: {method: "POST", serverStatus: 303, wantMethod: "GET"},
3: {method: "POST", serverStatus: 307, wantMethod: "POST"},
4: {method: "POST", serverStatus: 308, wantMethod: "POST"},
5: {method: "HEAD", serverStatus: 301, wantMethod: "HEAD"},
6: {method: "HEAD", serverStatus: 302, wantMethod: "HEAD"},
7: {method: "HEAD", serverStatus: 303, wantMethod: "HEAD"},
8: {method: "HEAD", serverStatus: 307, wantMethod: "HEAD"},
9: {method: "HEAD", serverStatus: 308, wantMethod: "HEAD"},
10: {method: "GET", serverStatus: 301, wantMethod: "GET"},
11: {method: "GET", serverStatus: 302, wantMethod: "GET"},
12: {method: "GET", serverStatus: 303, wantMethod: "GET"},
13: {method: "GET", serverStatus: 307, wantMethod: "GET"},
14: {method: "GET", serverStatus: 308, wantMethod: "GET"},
15: {method: "DELETE", serverStatus: 301, wantMethod: "GET"},
16: {method: "DELETE", serverStatus: 302, wantMethod: "GET"},
17: {method: "DELETE", serverStatus: 303, wantMethod: "GET"},
18: {method: "DELETE", serverStatus: 307, wantMethod: "DELETE"},
19: {method: "DELETE", serverStatus: 308, wantMethod: "DELETE"},
20: {method: "PUT", serverStatus: 301, wantMethod: "GET"},
21: {method: "PUT", serverStatus: 302, wantMethod: "GET"},
22: {method: "PUT", serverStatus: 303, wantMethod: "GET"},
23: {method: "PUT", serverStatus: 307, wantMethod: "PUT"},
24: {method: "PUT", serverStatus: 308, wantMethod: "PUT"},
25: {method: "MADEUPMETHOD", serverStatus: 301, wantMethod: "GET"},
26: {method: "MADEUPMETHOD", serverStatus: 302, wantMethod: "GET"},
27: {method: "MADEUPMETHOD", serverStatus: 303, wantMethod: "GET"},
28: {method: "MADEUPMETHOD", serverStatus: 307, wantMethod: "MADEUPMETHOD"},
29: {method: "MADEUPMETHOD", serverStatus: 308, wantMethod: "MADEUPMETHOD"},
}
handlerc := make(chan HandlerFunc, 1)
ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
h := <-handlerc
h(rw, req)
}))
defer ts.Close()
c := ts.Client()
for i, tt := range tests {
handlerc <- func(w ResponseWriter, r *Request) {
w.Header().Set("Location", ts.URL)
w.WriteHeader(tt.serverStatus)
}
req, err := NewRequest(tt.method, ts.URL, nil)
if err != nil {
t.Errorf("#%d: NewRequest: %v", i, err)
continue
}
c.CheckRedirect = func(req *Request, via []*Request) error {
if got, want := req.Method, tt.wantMethod; got != want {
return fmt.Errorf("#%d: got next method %q; want %q", i, got, want)
}
handlerc <- func(rw ResponseWriter, req *Request) {
// TODO: Check that the body is valid when we do 307 and 308 support
}
return nil
}
res, err := c.Do(req)
if err != nil {
t.Errorf("#%d: Response: %v", i, err)
continue
}
res.Body.Close()
}
}
// issue18239Body is an io.ReadCloser for TestTransportBodyReadError.
// Its Read returns readErr and increments *readCalls atomically.
// Its Close returns nil and increments *closeCalls atomically.
type issue18239Body struct {
readCalls *int32
closeCalls *int32
readErr error
}
func (b issue18239Body) Read([]byte) (int, error) {
atomic.AddInt32(b.readCalls, 1)
return 0, b.readErr
}
func (b issue18239Body) Close() error {
atomic.AddInt32(b.closeCalls, 1)
return nil
}
// Issue 18239: make sure the Transport doesn't retry requests with bodies
// if Request.GetBody is not defined.
func TestTransportBodyReadError(t *testing.T) {
setParallel(t)
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if r.URL.Path == "/ping" {
return
}
buf := make([]byte, 1)
n, err := r.Body.Read(buf)
w.Header().Set("X-Body-Read", fmt.Sprintf("%v, %v", n, err))
}))
defer ts.Close()
c := ts.Client()
tr := c.Transport.(*Transport)
// Do one initial successful request to create an idle TCP connection
// for the subsequent request to reuse. (The Transport only retries
// requests on reused connections.)
res, err := c.Get(ts.URL + "/ping")
if err != nil {
t.Fatal(err)
}
res.Body.Close()
var readCallsAtomic int32
var closeCallsAtomic int32 // atomic
someErr := errors.New("some body read error")
body := issue18239Body{&readCallsAtomic, &closeCallsAtomic, someErr}
req, err := NewRequest("POST", ts.URL, body)
if err != nil {
t.Fatal(err)
}
req = req.WithT(t)
_, err = tr.RoundTrip(req)
if err != someErr {
t.Errorf("Got error: %v; want Request.Body read error: %v", err, someErr)
}
// And verify that our Body wasn't used multiple times, which
// would indicate retries. (as it buggily was during part of
// Go 1.8's dev cycle)
readCalls := atomic.LoadInt32(&readCallsAtomic)
closeCalls := atomic.LoadInt32(&closeCallsAtomic)
if readCalls != 1 {
t.Errorf("read calls = %d; want 1", readCalls)
}
if closeCalls != 1 {
t.Errorf("close calls = %d; want 1", closeCalls)
}
}