blob: dc499a90b6ac59cf9cd275329de5d5e393cc95fa [file] [log] [blame]
// 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"
"crypto/tls"
"crypto/x509"
"encoding/base64"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"net"
. "net/http"
"net/http/httptest"
"net/url"
"reflect"
"sort"
"strconv"
"strings"
"sync"
"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) {
defer afterTest(t)
ts := httptest.NewServer(robotsTxtHandler)
defer ts.Close()
r, err := 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(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(robotsTxtHandler)
defer ts.Close()
r, err := Head(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) {
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) {
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), StatusFound)
return
}
fmt.Fprintf(w, "n=%d", n)
}))
defer ts.Close()
c := &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)
}
var checkErr error
var lastVia []*Request
c = &Client{CheckRedirect: func(_ *Request, via []*Request) error {
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)
}
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 (http://golang.org/issue/3795)")
}
res.Body.Close()
if res.Header.Get("Location") == "" {
t.Errorf("no Location header in Response")
}
}
func TestPostRedirects(t *testing.T) {
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()
fmt.Fprintf(&log.Buffer, "%s %s ", r.Method, r.RequestURI)
log.Unlock()
if v := r.URL.Query().Get("code"); v != "" {
code, _ := strconv.Atoi(v)
if code/100 == 3 {
w.Header().Set("Location", ts.URL)
}
w.WriteHeader(code)
}
}))
defer ts.Close()
tests := []struct {
suffix string
want int // response code
}{
{"/", 200},
{"/?code=301", 301},
{"/?code=302", 200},
{"/?code=303", 200},
{"/?code=404", 404},
}
for _, tt := range tests {
res, err := Post(ts.URL+tt.suffix, "text/plain", strings.NewReader("Some content"))
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()
want := "POST / POST /?code=301 POST /?code=302 GET / POST /?code=303 GET / POST /?code=404 "
if got != want {
t.Errorf("Log differs.\n Got: %q\nWant: %q", got, want)
}
}
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) {
defer afterTest(t)
var ts *httptest.Server
ts = httptest.NewServer(echoCookiesRedirectHandler)
defer ts.Close()
c := &Client{
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 // dont 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 := &Client{
Jar: jar,
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(t *testing.T) {
defer afterTest(t)
say := make(chan string)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.(Flusher).Flush()
for str := range say {
w.Write([]byte(str))
w.(Flusher).Flush()
}
}))
defer ts.Close()
c := &Client{}
res, err := c.Get(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 := &Client{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) {
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.
for _, insecure := range []bool{true, false} {
tr := &Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: insecure,
},
}
defer tr.CloseIdleConnections()
c := &Client{Transport: tr}
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 newTLSTransport(t *testing.T, ts *httptest.Server) *Transport {
certs := x509.NewCertPool()
for _, c := range ts.TLS.Certificates {
roots, err := x509.ParseCertificates(c.Certificate[len(c.Certificate)-1])
if err != nil {
t.Fatalf("error parsing server's root cert: %v", err)
}
for _, root := range roots {
certs.AddCert(root)
}
}
return &Transport{
TLSClientConfig: &tls.Config{RootCAs: certs},
}
}
func TestClientWithCorrectTLSServerName(t *testing.T) {
defer afterTest(t)
ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if r.TLS.ServerName != "127.0.0.1" {
t.Errorf("expected client to set ServerName 127.0.0.1, got: %q", r.TLS.ServerName)
}
}))
defer ts.Close()
c := &Client{Transport: newTLSTransport(t, ts)}
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)
trans := newTLSTransport(t, ts)
trans.TLSClientConfig.ServerName = "badserver"
c := &Client{Transport: trans}
_, 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()
tr := newTLSTransport(t, ts)
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())
}
defer tr.CloseIdleConnections()
c := &Client{Transport: tr}
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()
tr := newTLSTransport(t, ts)
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())
}
defer tr.CloseIdleConnections()
c := &Client{Transport: tr}
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)
}
}
// Verify Response.ContentLength is populated. http://golang.org/issue/4126
func TestClientHeadContentLength(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if v := r.FormValue("cl"); v != "" {
w.Header().Set("Content-Length", v)
}
}))
defer ts.Close()
tests := []struct {
suffix string
want int64
}{
{"/?cl=1234", 1234},
{"/?cl=0", 0},
{"", -1},
}
for _, tt := range tests {
req, _ := NewRequest("HEAD", ts.URL+tt.suffix, nil)
res, err := DefaultClient.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) {
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()
c := &Client{}
req, err := NewRequest("GET", ts.URL, nil)
if err != nil {
t.Fatal(err)
}
req.URL.User = url.User(gopher)
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 TestClientTimeout(t *testing.T) {
if testing.Short() {
t.Skip("skipping in short mode")
}
defer afterTest(t)
sawRoot := make(chan bool, 1)
sawSlow := make(chan bool, 1)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
if r.URL.Path == "/" {
sawRoot <- true
Redirect(w, r, "/slow", StatusFound)
return
}
if r.URL.Path == "/slow" {
w.Write([]byte("Hello"))
w.(Flusher).Flush()
sawSlow <- true
time.Sleep(2 * time.Second)
return
}
}))
defer ts.Close()
const timeout = 500 * time.Millisecond
c := &Client{
Timeout: timeout,
}
res, err := c.Get(ts.URL)
if err != nil {
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 = timeout * 2
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)
}
}
// Client.Timeout firing before getting to the body
func TestClientTimeout_Headers(t *testing.T) {
if testing.Short() {
t.Skip("skipping in short mode")
}
defer afterTest(t)
donec := make(chan bool)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
<-donec
}))
defer ts.Close()
defer close(donec)
c := &Client{Timeout: 500 * time.Millisecond}
_, err := c.Get(ts.URL)
if err == nil {
t.Fatal("got response from Get; expected error")
}
ue, ok := err.(*url.Error)
if !ok {
t.Fatalf("Got error of type %T; want *url.Error", err)
}
ne, ok := ue.Err.(net.Error)
if !ok {
t.Fatalf("Got url.Error.Err 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)
}
}
func TestClientRedirectEatsBody(t *testing.T) {
defer afterTest(t)
saw := make(chan string, 2)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
saw <- r.RemoteAddr
if r.URL.Path == "/" {
Redirect(w, r, "/foo", StatusFound) // which includes a body
}
}))
defer ts.Close()
res, err := Get(ts.URL)
if err != nil {
t.Fatal(err)
}
_, err = ioutil.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
res.Body.Close()
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 TestClientTrailers(t *testing.T) {
defer afterTest(t)
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header().Set("Connection", "close")
w.Header().Set("Trailer", "Server-Trailer-A, Server-Trailer-B")
w.Header().Add("Trailer", "Server-Trailer-C")
var decl []string
for k := range r.Trailer {
decl = append(decl, k)
}
sort.Strings(decl)
slurp, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Errorf("Server reading request body: %v", err)
}
if string(slurp) != "foo" {
t.Errorf("Server read request body %q; want foo", slurp)
}
if r.Trailer == nil {
io.WriteString(w, "nil Trailer")
} else {
fmt.Fprintf(w, "decl: %v, vals: %s, %s",
decl,
r.Trailer.Get("Client-Trailer-A"),
r.Trailer.Get("Client-Trailer-B"))
}
// How handlers set Trailers: declare it ahead of time
// with the Trailer header, and then mutate the
// Header() of those values later, after the response
// has been written (we wrote to w above).
w.Header().Set("Server-Trailer-A", "valuea")
w.Header().Set("Server-Trailer-C", "valuec") // skipping B
}))
defer ts.Close()
var req *Request
req, _ = NewRequest("POST", ts.URL, io.MultiReader(
eofReaderFunc(func() {
req.Trailer["Client-Trailer-A"] = []string{"valuea"}
}),
strings.NewReader("foo"),
eofReaderFunc(func() {
req.Trailer["Client-Trailer-B"] = []string{"valueb"}
}),
))
req.Trailer = Header{
"Client-Trailer-A": nil, // to be set later
"Client-Trailer-B": nil, // to be set later
}
req.ContentLength = -1
res, err := DefaultClient.Do(req)
if err != nil {
t.Fatal(err)
}
if err := wantBody(res, err, "decl: [Client-Trailer-A Client-Trailer-B], vals: valuea, valueb"); err != nil {
t.Error(err)
}
want := Header{
"Server-Trailer-A": []string{"valuea"},
"Server-Trailer-B": nil,
"Server-Trailer-C": []string{"valuec"},
}
if !reflect.DeepEqual(res.Trailer, want) {
t.Errorf("Response trailers = %#v; want %#v", res.Trailer, want)
}
}
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)
}
}
}