| // 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" |
| "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 io.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 := io.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, _ := NewRequestWithContext(ctx, "GET", ts.URL, nil) |
| _, 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, _ := io.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 io.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 := io.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.TLSClientConfig.MaxVersion = tls.VersionTLS12 // to get to pick the cipher suite |
| 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 := io.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 TestStripPasswordFromError(t *testing.T) { |
| client := &Client{Transport: &recordingTransport{}} |
| testCases := []struct { |
| desc string |
| in string |
| out string |
| }{ |
| { |
| desc: "Strip password from error message", |
| in: "http://user:password@dummy.faketld/", |
| out: `Get "http://user:***@dummy.faketld/": dummy impl`, |
| }, |
| { |
| desc: "Don't Strip password from domain name", |
| in: "http://user:password@password.faketld/", |
| out: `Get "http://user:***@password.faketld/": dummy impl`, |
| }, |
| { |
| desc: "Don't Strip password from path", |
| in: "http://user:password@dummy.faketld/password", |
| out: `Get "http://user:***@dummy.faketld/password": dummy impl`, |
| }, |
| { |
| desc: "Strip escaped password", |
| in: "http://user:pa%2Fssword@dummy.faketld/", |
| out: `Get "http://user:***@dummy.faketld/": dummy impl`, |
| }, |
| } |
| for _, tC := range testCases { |
| t.Run(tC.desc, func(t *testing.T) { |
| _, err := client.Get(tC.in) |
| if err.Error() != tC.out { |
| t.Errorf("Unexpected output for %q: expected %q, actual %q", |
| tC.in, tC.out, err.Error()) |
| } |
| }) |
| } |
| } |
| |
| 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 := io.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") { |
| 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 |
| }), optQuietLog) |
| 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(io.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 = io.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: io.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 := io.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) |
| } |
| } |
| |
| type roundTripperWithoutCloseIdle struct{} |
| |
| func (roundTripperWithoutCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") } |
| |
| type roundTripperWithCloseIdle func() // underlying func is CloseIdleConnections func |
| |
| func (roundTripperWithCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") } |
| func (f roundTripperWithCloseIdle) CloseIdleConnections() { f() } |
| |
| func TestClientCloseIdleConnections(t *testing.T) { |
| c := &Client{Transport: roundTripperWithoutCloseIdle{}} |
| c.CloseIdleConnections() // verify we don't crash at least |
| |
| closed := false |
| var tr RoundTripper = roundTripperWithCloseIdle(func() { |
| closed = true |
| }) |
| c = &Client{Transport: tr} |
| c.CloseIdleConnections() |
| if !closed { |
| t.Error("not closed") |
| } |
| } |
| |
| func TestClientPropagatesTimeoutToContext(t *testing.T) { |
| errDial := errors.New("not actually dialing") |
| c := &Client{ |
| Timeout: 5 * time.Second, |
| Transport: &Transport{ |
| DialContext: func(ctx context.Context, netw, addr string) (net.Conn, error) { |
| deadline, ok := ctx.Deadline() |
| if !ok { |
| t.Error("no deadline") |
| } else { |
| t.Logf("deadline in %v", deadline.Sub(time.Now()).Round(time.Second/10)) |
| } |
| return nil, errDial |
| }, |
| }, |
| } |
| c.Get("https://example.tld/") |
| } |
| |
| func TestClientDoCanceledVsTimeout_h1(t *testing.T) { |
| testClientDoCanceledVsTimeout(t, h1Mode) |
| } |
| |
| func TestClientDoCanceledVsTimeout_h2(t *testing.T) { |
| testClientDoCanceledVsTimeout(t, h2Mode) |
| } |
| |
| // Issue 33545: lock-in the behavior promised by Client.Do's |
| // docs about request cancellation vs timing out. |
| func testClientDoCanceledVsTimeout(t *testing.T, h2 bool) { |
| defer afterTest(t) |
| cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) { |
| w.Write([]byte("Hello, World!")) |
| })) |
| defer cst.close() |
| |
| cases := []string{"timeout", "canceled"} |
| |
| for _, name := range cases { |
| t.Run(name, func(t *testing.T) { |
| var ctx context.Context |
| var cancel func() |
| if name == "timeout" { |
| ctx, cancel = context.WithTimeout(context.Background(), -time.Nanosecond) |
| } else { |
| ctx, cancel = context.WithCancel(context.Background()) |
| cancel() |
| } |
| defer cancel() |
| |
| req, _ := NewRequestWithContext(ctx, "GET", cst.ts.URL, nil) |
| _, err := cst.c.Do(req) |
| if err == nil { |
| t.Fatal("Unexpectedly got a nil error") |
| } |
| |
| ue := err.(*url.Error) |
| |
| var wantIsTimeout bool |
| var wantErr error = context.Canceled |
| if name == "timeout" { |
| wantErr = context.DeadlineExceeded |
| wantIsTimeout = true |
| } |
| if g, w := ue.Timeout(), wantIsTimeout; g != w { |
| t.Fatalf("url.Timeout() = %t, want %t", g, w) |
| } |
| if g, w := ue.Err, wantErr; g != w { |
| t.Errorf("url.Error.Err = %v; want %v", g, w) |
| } |
| }) |
| } |
| } |
| |
| type nilBodyRoundTripper struct{} |
| |
| func (nilBodyRoundTripper) RoundTrip(req *Request) (*Response, error) { |
| return &Response{ |
| StatusCode: StatusOK, |
| Status: StatusText(StatusOK), |
| Body: nil, |
| Request: req, |
| }, nil |
| } |
| |
| func TestClientPopulatesNilResponseBody(t *testing.T) { |
| c := &Client{Transport: nilBodyRoundTripper{}} |
| |
| resp, err := c.Get("http://localhost/anything") |
| if err != nil { |
| t.Fatalf("Client.Get rejected Response with nil Body: %v", err) |
| } |
| |
| if resp.Body == nil { |
| t.Fatalf("Client failed to provide a non-nil Body as documented") |
| } |
| defer func() { |
| if err := resp.Body.Close(); err != nil { |
| t.Fatalf("error from Close on substitute Response.Body: %v", err) |
| } |
| }() |
| |
| if b, err := io.ReadAll(resp.Body); err != nil { |
| t.Errorf("read error from substitute Response.Body: %v", err) |
| } else if len(b) != 0 { |
| t.Errorf("substitute Response.Body was unexpectedly non-empty: %q", b) |
| } |
| } |
| |
| // Issue 40382: Client calls Close multiple times on Request.Body. |
| func TestClientCallsCloseOnlyOnce(t *testing.T) { |
| setParallel(t) |
| defer afterTest(t) |
| cst := newClientServerTest(t, h1Mode, HandlerFunc(func(w ResponseWriter, r *Request) { |
| w.WriteHeader(StatusNoContent) |
| })) |
| defer cst.close() |
| |
| // Issue occurred non-deterministically: needed to occur after a successful |
| // write (into TCP buffer) but before end of body. |
| for i := 0; i < 50 && !t.Failed(); i++ { |
| body := &issue40382Body{t: t, n: 300000} |
| req, err := NewRequest(MethodPost, cst.ts.URL, body) |
| if err != nil { |
| t.Fatal(err) |
| } |
| resp, err := cst.tr.RoundTrip(req) |
| if err != nil { |
| t.Fatal(err) |
| } |
| resp.Body.Close() |
| } |
| } |
| |
| // issue40382Body is an io.ReadCloser for TestClientCallsCloseOnlyOnce. |
| // Its Read reads n bytes before returning io.EOF. |
| // Its Close returns nil but fails the test if called more than once. |
| type issue40382Body struct { |
| t *testing.T |
| n int |
| closeCallsAtomic int32 |
| } |
| |
| func (b *issue40382Body) Read(p []byte) (int, error) { |
| switch { |
| case b.n == 0: |
| return 0, io.EOF |
| case b.n < len(p): |
| p = p[:b.n] |
| fallthrough |
| default: |
| for i := range p { |
| p[i] = 'x' |
| } |
| b.n -= len(p) |
| return len(p), nil |
| } |
| } |
| |
| func (b *issue40382Body) Close() error { |
| if atomic.AddInt32(&b.closeCallsAtomic, 1) == 2 { |
| b.t.Error("Body closed more than once") |
| } |
| return nil |
| } |
| |
| func TestProbeZeroLengthBody(t *testing.T) { |
| setParallel(t) |
| defer afterTest(t) |
| reqc := make(chan struct{}) |
| cst := newClientServerTest(t, false, HandlerFunc(func(w ResponseWriter, r *Request) { |
| close(reqc) |
| if _, err := io.Copy(w, r.Body); err != nil { |
| t.Errorf("error copying request body: %v", err) |
| } |
| })) |
| defer cst.close() |
| |
| bodyr, bodyw := io.Pipe() |
| var gotBody string |
| var wg sync.WaitGroup |
| wg.Add(1) |
| go func() { |
| defer wg.Done() |
| req, _ := NewRequest("GET", cst.ts.URL, bodyr) |
| res, err := cst.c.Do(req) |
| b, err := io.ReadAll(res.Body) |
| if err != nil { |
| t.Error(err) |
| } |
| gotBody = string(b) |
| }() |
| |
| select { |
| case <-reqc: |
| // Request should be sent after trying to probe the request body for 200ms. |
| case <-time.After(60 * time.Second): |
| t.Errorf("request not sent after 60s") |
| } |
| |
| // Write the request body and wait for the request to complete. |
| const content = "body" |
| bodyw.Write([]byte(content)) |
| bodyw.Close() |
| wg.Wait() |
| if gotBody != content { |
| t.Fatalf("server got body %q, want %q", gotBody, content) |
| } |
| } |
