| // 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) { |
| 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) |
| } |
| } |
| } |