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Diffstat (limited to 'src/pkg/net/http/serve_test.go')
-rw-r--r--src/pkg/net/http/serve_test.go2848
1 files changed, 0 insertions, 2848 deletions
diff --git a/src/pkg/net/http/serve_test.go b/src/pkg/net/http/serve_test.go
deleted file mode 100644
index 9e4d226bf..000000000
--- a/src/pkg/net/http/serve_test.go
+++ /dev/null
@@ -1,2848 +0,0 @@
-// Copyright 2010 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.
-
-// End-to-end serving tests
-
-package http_test
-
-import (
- "bufio"
- "bytes"
- "crypto/tls"
- "errors"
- "fmt"
- "io"
- "io/ioutil"
- "log"
- "net"
- . "net/http"
- "net/http/httptest"
- "net/http/httputil"
- "net/url"
- "os"
- "os/exec"
- "reflect"
- "runtime"
- "strconv"
- "strings"
- "sync"
- "sync/atomic"
- "syscall"
- "testing"
- "time"
-)
-
-type dummyAddr string
-type oneConnListener struct {
- conn net.Conn
-}
-
-func (l *oneConnListener) Accept() (c net.Conn, err error) {
- c = l.conn
- if c == nil {
- err = io.EOF
- return
- }
- err = nil
- l.conn = nil
- return
-}
-
-func (l *oneConnListener) Close() error {
- return nil
-}
-
-func (l *oneConnListener) Addr() net.Addr {
- return dummyAddr("test-address")
-}
-
-func (a dummyAddr) Network() string {
- return string(a)
-}
-
-func (a dummyAddr) String() string {
- return string(a)
-}
-
-type noopConn struct{}
-
-func (noopConn) LocalAddr() net.Addr { return dummyAddr("local-addr") }
-func (noopConn) RemoteAddr() net.Addr { return dummyAddr("remote-addr") }
-func (noopConn) SetDeadline(t time.Time) error { return nil }
-func (noopConn) SetReadDeadline(t time.Time) error { return nil }
-func (noopConn) SetWriteDeadline(t time.Time) error { return nil }
-
-type rwTestConn struct {
- io.Reader
- io.Writer
- noopConn
-
- closeFunc func() error // called if non-nil
- closec chan bool // else, if non-nil, send value to it on close
-}
-
-func (c *rwTestConn) Close() error {
- if c.closeFunc != nil {
- return c.closeFunc()
- }
- select {
- case c.closec <- true:
- default:
- }
- return nil
-}
-
-type testConn struct {
- readBuf bytes.Buffer
- writeBuf bytes.Buffer
- closec chan bool // if non-nil, send value to it on close
- noopConn
-}
-
-func (c *testConn) Read(b []byte) (int, error) {
- return c.readBuf.Read(b)
-}
-
-func (c *testConn) Write(b []byte) (int, error) {
- return c.writeBuf.Write(b)
-}
-
-func (c *testConn) Close() error {
- select {
- case c.closec <- true:
- default:
- }
- return nil
-}
-
-// reqBytes treats req as a request (with \n delimiters) and returns it with \r\n delimiters,
-// ending in \r\n\r\n
-func reqBytes(req string) []byte {
- return []byte(strings.Replace(strings.TrimSpace(req), "\n", "\r\n", -1) + "\r\n\r\n")
-}
-
-type handlerTest struct {
- handler Handler
-}
-
-func newHandlerTest(h Handler) handlerTest {
- return handlerTest{h}
-}
-
-func (ht handlerTest) rawResponse(req string) string {
- reqb := reqBytes(req)
- var output bytes.Buffer
- conn := &rwTestConn{
- Reader: bytes.NewReader(reqb),
- Writer: &output,
- closec: make(chan bool, 1),
- }
- ln := &oneConnListener{conn: conn}
- go Serve(ln, ht.handler)
- <-conn.closec
- return output.String()
-}
-
-func TestConsumingBodyOnNextConn(t *testing.T) {
- conn := new(testConn)
- for i := 0; i < 2; i++ {
- conn.readBuf.Write([]byte(
- "POST / HTTP/1.1\r\n" +
- "Host: test\r\n" +
- "Content-Length: 11\r\n" +
- "\r\n" +
- "foo=1&bar=1"))
- }
-
- reqNum := 0
- ch := make(chan *Request)
- servech := make(chan error)
- listener := &oneConnListener{conn}
- handler := func(res ResponseWriter, req *Request) {
- reqNum++
- ch <- req
- }
-
- go func() {
- servech <- Serve(listener, HandlerFunc(handler))
- }()
-
- var req *Request
- req = <-ch
- if req == nil {
- t.Fatal("Got nil first request.")
- }
- if req.Method != "POST" {
- t.Errorf("For request #1's method, got %q; expected %q",
- req.Method, "POST")
- }
-
- req = <-ch
- if req == nil {
- t.Fatal("Got nil first request.")
- }
- if req.Method != "POST" {
- t.Errorf("For request #2's method, got %q; expected %q",
- req.Method, "POST")
- }
-
- if serveerr := <-servech; serveerr != io.EOF {
- t.Errorf("Serve returned %q; expected EOF", serveerr)
- }
-}
-
-type stringHandler string
-
-func (s stringHandler) ServeHTTP(w ResponseWriter, r *Request) {
- w.Header().Set("Result", string(s))
-}
-
-var handlers = []struct {
- pattern string
- msg string
-}{
- {"/", "Default"},
- {"/someDir/", "someDir"},
- {"someHost.com/someDir/", "someHost.com/someDir"},
-}
-
-var vtests = []struct {
- url string
- expected string
-}{
- {"http://localhost/someDir/apage", "someDir"},
- {"http://localhost/otherDir/apage", "Default"},
- {"http://someHost.com/someDir/apage", "someHost.com/someDir"},
- {"http://otherHost.com/someDir/apage", "someDir"},
- {"http://otherHost.com/aDir/apage", "Default"},
- // redirections for trees
- {"http://localhost/someDir", "/someDir/"},
- {"http://someHost.com/someDir", "/someDir/"},
-}
-
-func TestHostHandlers(t *testing.T) {
- defer afterTest(t)
- mux := NewServeMux()
- for _, h := range handlers {
- mux.Handle(h.pattern, stringHandler(h.msg))
- }
- ts := httptest.NewServer(mux)
- defer ts.Close()
-
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- defer conn.Close()
- cc := httputil.NewClientConn(conn, nil)
- for _, vt := range vtests {
- var r *Response
- var req Request
- if req.URL, err = url.Parse(vt.url); err != nil {
- t.Errorf("cannot parse url: %v", err)
- continue
- }
- if err := cc.Write(&req); err != nil {
- t.Errorf("writing request: %v", err)
- continue
- }
- r, err := cc.Read(&req)
- if err != nil {
- t.Errorf("reading response: %v", err)
- continue
- }
- switch r.StatusCode {
- case StatusOK:
- s := r.Header.Get("Result")
- if s != vt.expected {
- t.Errorf("Get(%q) = %q, want %q", vt.url, s, vt.expected)
- }
- case StatusMovedPermanently:
- s := r.Header.Get("Location")
- if s != vt.expected {
- t.Errorf("Get(%q) = %q, want %q", vt.url, s, vt.expected)
- }
- default:
- t.Errorf("Get(%q) unhandled status code %d", vt.url, r.StatusCode)
- }
- }
-}
-
-var serveMuxRegister = []struct {
- pattern string
- h Handler
-}{
- {"/dir/", serve(200)},
- {"/search", serve(201)},
- {"codesearch.google.com/search", serve(202)},
- {"codesearch.google.com/", serve(203)},
- {"example.com/", HandlerFunc(checkQueryStringHandler)},
-}
-
-// serve returns a handler that sends a response with the given code.
-func serve(code int) HandlerFunc {
- return func(w ResponseWriter, r *Request) {
- w.WriteHeader(code)
- }
-}
-
-// checkQueryStringHandler checks if r.URL.RawQuery has the same value
-// as the URL excluding the scheme and the query string and sends 200
-// response code if it is, 500 otherwise.
-func checkQueryStringHandler(w ResponseWriter, r *Request) {
- u := *r.URL
- u.Scheme = "http"
- u.Host = r.Host
- u.RawQuery = ""
- if "http://"+r.URL.RawQuery == u.String() {
- w.WriteHeader(200)
- } else {
- w.WriteHeader(500)
- }
-}
-
-var serveMuxTests = []struct {
- method string
- host string
- path string
- code int
- pattern string
-}{
- {"GET", "google.com", "/", 404, ""},
- {"GET", "google.com", "/dir", 301, "/dir/"},
- {"GET", "google.com", "/dir/", 200, "/dir/"},
- {"GET", "google.com", "/dir/file", 200, "/dir/"},
- {"GET", "google.com", "/search", 201, "/search"},
- {"GET", "google.com", "/search/", 404, ""},
- {"GET", "google.com", "/search/foo", 404, ""},
- {"GET", "codesearch.google.com", "/search", 202, "codesearch.google.com/search"},
- {"GET", "codesearch.google.com", "/search/", 203, "codesearch.google.com/"},
- {"GET", "codesearch.google.com", "/search/foo", 203, "codesearch.google.com/"},
- {"GET", "codesearch.google.com", "/", 203, "codesearch.google.com/"},
- {"GET", "images.google.com", "/search", 201, "/search"},
- {"GET", "images.google.com", "/search/", 404, ""},
- {"GET", "images.google.com", "/search/foo", 404, ""},
- {"GET", "google.com", "/../search", 301, "/search"},
- {"GET", "google.com", "/dir/..", 301, ""},
- {"GET", "google.com", "/dir/..", 301, ""},
- {"GET", "google.com", "/dir/./file", 301, "/dir/"},
-
- // The /foo -> /foo/ redirect applies to CONNECT requests
- // but the path canonicalization does not.
- {"CONNECT", "google.com", "/dir", 301, "/dir/"},
- {"CONNECT", "google.com", "/../search", 404, ""},
- {"CONNECT", "google.com", "/dir/..", 200, "/dir/"},
- {"CONNECT", "google.com", "/dir/..", 200, "/dir/"},
- {"CONNECT", "google.com", "/dir/./file", 200, "/dir/"},
-}
-
-func TestServeMuxHandler(t *testing.T) {
- mux := NewServeMux()
- for _, e := range serveMuxRegister {
- mux.Handle(e.pattern, e.h)
- }
-
- for _, tt := range serveMuxTests {
- r := &Request{
- Method: tt.method,
- Host: tt.host,
- URL: &url.URL{
- Path: tt.path,
- },
- }
- h, pattern := mux.Handler(r)
- rr := httptest.NewRecorder()
- h.ServeHTTP(rr, r)
- if pattern != tt.pattern || rr.Code != tt.code {
- t.Errorf("%s %s %s = %d, %q, want %d, %q", tt.method, tt.host, tt.path, rr.Code, pattern, tt.code, tt.pattern)
- }
- }
-}
-
-var serveMuxTests2 = []struct {
- method string
- host string
- url string
- code int
- redirOk bool
-}{
- {"GET", "google.com", "/", 404, false},
- {"GET", "example.com", "/test/?example.com/test/", 200, false},
- {"GET", "example.com", "test/?example.com/test/", 200, true},
-}
-
-// TestServeMuxHandlerRedirects tests that automatic redirects generated by
-// mux.Handler() shouldn't clear the request's query string.
-func TestServeMuxHandlerRedirects(t *testing.T) {
- mux := NewServeMux()
- for _, e := range serveMuxRegister {
- mux.Handle(e.pattern, e.h)
- }
-
- for _, tt := range serveMuxTests2 {
- tries := 1
- turl := tt.url
- for tries > 0 {
- u, e := url.Parse(turl)
- if e != nil {
- t.Fatal(e)
- }
- r := &Request{
- Method: tt.method,
- Host: tt.host,
- URL: u,
- }
- h, _ := mux.Handler(r)
- rr := httptest.NewRecorder()
- h.ServeHTTP(rr, r)
- if rr.Code != 301 {
- if rr.Code != tt.code {
- t.Errorf("%s %s %s = %d, want %d", tt.method, tt.host, tt.url, rr.Code, tt.code)
- }
- break
- }
- if !tt.redirOk {
- t.Errorf("%s %s %s, unexpected redirect", tt.method, tt.host, tt.url)
- break
- }
- turl = rr.HeaderMap.Get("Location")
- tries--
- }
- if tries < 0 {
- t.Errorf("%s %s %s, too many redirects", tt.method, tt.host, tt.url)
- }
- }
-}
-
-// Tests for http://code.google.com/p/go/issues/detail?id=900
-func TestMuxRedirectLeadingSlashes(t *testing.T) {
- paths := []string{"//foo.txt", "///foo.txt", "/../../foo.txt"}
- for _, path := range paths {
- req, err := ReadRequest(bufio.NewReader(strings.NewReader("GET " + path + " HTTP/1.1\r\nHost: test\r\n\r\n")))
- if err != nil {
- t.Errorf("%s", err)
- }
- mux := NewServeMux()
- resp := httptest.NewRecorder()
-
- mux.ServeHTTP(resp, req)
-
- if loc, expected := resp.Header().Get("Location"), "/foo.txt"; loc != expected {
- t.Errorf("Expected Location header set to %q; got %q", expected, loc)
- return
- }
-
- if code, expected := resp.Code, StatusMovedPermanently; code != expected {
- t.Errorf("Expected response code of StatusMovedPermanently; got %d", code)
- return
- }
- }
-}
-
-func TestServerTimeouts(t *testing.T) {
- if runtime.GOOS == "plan9" {
- t.Skip("skipping test; see http://golang.org/issue/7237")
- }
- defer afterTest(t)
- reqNum := 0
- ts := httptest.NewUnstartedServer(HandlerFunc(func(res ResponseWriter, req *Request) {
- reqNum++
- fmt.Fprintf(res, "req=%d", reqNum)
- }))
- ts.Config.ReadTimeout = 250 * time.Millisecond
- ts.Config.WriteTimeout = 250 * time.Millisecond
- ts.Start()
- defer ts.Close()
-
- // Hit the HTTP server successfully.
- tr := &Transport{DisableKeepAlives: true} // they interfere with this test
- defer tr.CloseIdleConnections()
- c := &Client{Transport: tr}
- r, err := c.Get(ts.URL)
- if err != nil {
- t.Fatalf("http Get #1: %v", err)
- }
- got, _ := ioutil.ReadAll(r.Body)
- expected := "req=1"
- if string(got) != expected {
- t.Errorf("Unexpected response for request #1; got %q; expected %q",
- string(got), expected)
- }
-
- // Slow client that should timeout.
- t1 := time.Now()
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- buf := make([]byte, 1)
- n, err := conn.Read(buf)
- latency := time.Since(t1)
- if n != 0 || err != io.EOF {
- t.Errorf("Read = %v, %v, wanted %v, %v", n, err, 0, io.EOF)
- }
- if latency < 200*time.Millisecond /* fudge from 250 ms above */ {
- t.Errorf("got EOF after %s, want >= %s", latency, 200*time.Millisecond)
- }
-
- // Hit the HTTP server successfully again, verifying that the
- // previous slow connection didn't run our handler. (that we
- // get "req=2", not "req=3")
- r, err = Get(ts.URL)
- if err != nil {
- t.Fatalf("http Get #2: %v", err)
- }
- got, _ = ioutil.ReadAll(r.Body)
- expected = "req=2"
- if string(got) != expected {
- t.Errorf("Get #2 got %q, want %q", string(got), expected)
- }
-
- if !testing.Short() {
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- defer conn.Close()
- go io.Copy(ioutil.Discard, conn)
- for i := 0; i < 5; i++ {
- _, err := conn.Write([]byte("GET / HTTP/1.1\r\nHost: foo\r\n\r\n"))
- if err != nil {
- t.Fatalf("on write %d: %v", i, err)
- }
- time.Sleep(ts.Config.ReadTimeout / 2)
- }
- }
-}
-
-// golang.org/issue/4741 -- setting only a write timeout that triggers
-// shouldn't cause a handler to block forever on reads (next HTTP
-// request) that will never happen.
-func TestOnlyWriteTimeout(t *testing.T) {
- if runtime.GOOS == "plan9" {
- t.Skip("skipping test; see http://golang.org/issue/7237")
- }
- defer afterTest(t)
- var conn net.Conn
- var afterTimeoutErrc = make(chan error, 1)
- ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, req *Request) {
- buf := make([]byte, 512<<10)
- _, err := w.Write(buf)
- if err != nil {
- t.Errorf("handler Write error: %v", err)
- return
- }
- conn.SetWriteDeadline(time.Now().Add(-30 * time.Second))
- _, err = w.Write(buf)
- afterTimeoutErrc <- err
- }))
- ts.Listener = trackLastConnListener{ts.Listener, &conn}
- ts.Start()
- defer ts.Close()
-
- tr := &Transport{DisableKeepAlives: false}
- defer tr.CloseIdleConnections()
- c := &Client{Transport: tr}
-
- errc := make(chan error)
- go func() {
- res, err := c.Get(ts.URL)
- if err != nil {
- errc <- err
- return
- }
- _, err = io.Copy(ioutil.Discard, res.Body)
- errc <- err
- }()
- select {
- case err := <-errc:
- if err == nil {
- t.Errorf("expected an error from Get request")
- }
- case <-time.After(5 * time.Second):
- t.Fatal("timeout waiting for Get error")
- }
- if err := <-afterTimeoutErrc; err == nil {
- t.Error("expected write error after timeout")
- }
-}
-
-// trackLastConnListener tracks the last net.Conn that was accepted.
-type trackLastConnListener struct {
- net.Listener
- last *net.Conn // destination
-}
-
-func (l trackLastConnListener) Accept() (c net.Conn, err error) {
- c, err = l.Listener.Accept()
- *l.last = c
- return
-}
-
-// TestIdentityResponse verifies that a handler can unset
-func TestIdentityResponse(t *testing.T) {
- defer afterTest(t)
- handler := HandlerFunc(func(rw ResponseWriter, req *Request) {
- rw.Header().Set("Content-Length", "3")
- rw.Header().Set("Transfer-Encoding", req.FormValue("te"))
- switch {
- case req.FormValue("overwrite") == "1":
- _, err := rw.Write([]byte("foo TOO LONG"))
- if err != ErrContentLength {
- t.Errorf("expected ErrContentLength; got %v", err)
- }
- case req.FormValue("underwrite") == "1":
- rw.Header().Set("Content-Length", "500")
- rw.Write([]byte("too short"))
- default:
- rw.Write([]byte("foo"))
- }
- })
-
- ts := httptest.NewServer(handler)
- defer ts.Close()
-
- // Note: this relies on the assumption (which is true) that
- // Get sends HTTP/1.1 or greater requests. Otherwise the
- // server wouldn't have the choice to send back chunked
- // responses.
- for _, te := range []string{"", "identity"} {
- url := ts.URL + "/?te=" + te
- res, err := Get(url)
- if err != nil {
- t.Fatalf("error with Get of %s: %v", url, err)
- }
- if cl, expected := res.ContentLength, int64(3); cl != expected {
- t.Errorf("for %s expected res.ContentLength of %d; got %d", url, expected, cl)
- }
- if cl, expected := res.Header.Get("Content-Length"), "3"; cl != expected {
- t.Errorf("for %s expected Content-Length header of %q; got %q", url, expected, cl)
- }
- if tl, expected := len(res.TransferEncoding), 0; tl != expected {
- t.Errorf("for %s expected len(res.TransferEncoding) of %d; got %d (%v)",
- url, expected, tl, res.TransferEncoding)
- }
- res.Body.Close()
- }
-
- // Verify that ErrContentLength is returned
- url := ts.URL + "/?overwrite=1"
- res, err := Get(url)
- if err != nil {
- t.Fatalf("error with Get of %s: %v", url, err)
- }
- res.Body.Close()
-
- // Verify that the connection is closed when the declared Content-Length
- // is larger than what the handler wrote.
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("error dialing: %v", err)
- }
- _, err = conn.Write([]byte("GET /?underwrite=1 HTTP/1.1\r\nHost: foo\r\n\r\n"))
- if err != nil {
- t.Fatalf("error writing: %v", err)
- }
-
- // The ReadAll will hang for a failing test, so use a Timer to
- // fail explicitly.
- goTimeout(t, 2*time.Second, func() {
- got, _ := ioutil.ReadAll(conn)
- expectedSuffix := "\r\n\r\ntoo short"
- if !strings.HasSuffix(string(got), expectedSuffix) {
- t.Errorf("Expected output to end with %q; got response body %q",
- expectedSuffix, string(got))
- }
- })
-}
-
-func testTCPConnectionCloses(t *testing.T, req string, h Handler) {
- defer afterTest(t)
- s := httptest.NewServer(h)
- defer s.Close()
-
- conn, err := net.Dial("tcp", s.Listener.Addr().String())
- if err != nil {
- t.Fatal("dial error:", err)
- }
- defer conn.Close()
-
- _, err = fmt.Fprint(conn, req)
- if err != nil {
- t.Fatal("print error:", err)
- }
-
- r := bufio.NewReader(conn)
- res, err := ReadResponse(r, &Request{Method: "GET"})
- if err != nil {
- t.Fatal("ReadResponse error:", err)
- }
-
- didReadAll := make(chan bool, 1)
- go func() {
- select {
- case <-time.After(5 * time.Second):
- t.Error("body not closed after 5s")
- return
- case <-didReadAll:
- }
- }()
-
- _, err = ioutil.ReadAll(r)
- if err != nil {
- t.Fatal("read error:", err)
- }
- didReadAll <- true
-
- if !res.Close {
- t.Errorf("Response.Close = false; want true")
- }
-}
-
-// TestServeHTTP10Close verifies that HTTP/1.0 requests won't be kept alive.
-func TestServeHTTP10Close(t *testing.T) {
- testTCPConnectionCloses(t, "GET / HTTP/1.0\r\n\r\n", HandlerFunc(func(w ResponseWriter, r *Request) {
- ServeFile(w, r, "testdata/file")
- }))
-}
-
-// TestClientCanClose verifies that clients can also force a connection to close.
-func TestClientCanClose(t *testing.T) {
- testTCPConnectionCloses(t, "GET / HTTP/1.1\r\nConnection: close\r\n\r\n", HandlerFunc(func(w ResponseWriter, r *Request) {
- // Nothing.
- }))
-}
-
-// TestHandlersCanSetConnectionClose verifies that handlers can force a connection to close,
-// even for HTTP/1.1 requests.
-func TestHandlersCanSetConnectionClose11(t *testing.T) {
- testTCPConnectionCloses(t, "GET / HTTP/1.1\r\n\r\n", HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Connection", "close")
- }))
-}
-
-func TestHandlersCanSetConnectionClose10(t *testing.T) {
- testTCPConnectionCloses(t, "GET / HTTP/1.0\r\nConnection: keep-alive\r\n\r\n", HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Connection", "close")
- }))
-}
-
-func TestSetsRemoteAddr(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- fmt.Fprintf(w, "%s", r.RemoteAddr)
- }))
- defer ts.Close()
-
- res, err := Get(ts.URL)
- if err != nil {
- t.Fatalf("Get error: %v", err)
- }
- body, err := ioutil.ReadAll(res.Body)
- if err != nil {
- t.Fatalf("ReadAll error: %v", err)
- }
- ip := string(body)
- if !strings.HasPrefix(ip, "127.0.0.1:") && !strings.HasPrefix(ip, "[::1]:") {
- t.Fatalf("Expected local addr; got %q", ip)
- }
-}
-
-func TestChunkedResponseHeaders(t *testing.T) {
- defer afterTest(t)
- log.SetOutput(ioutil.Discard) // is noisy otherwise
- defer log.SetOutput(os.Stderr)
-
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Content-Length", "intentional gibberish") // we check that this is deleted
- w.(Flusher).Flush()
- fmt.Fprintf(w, "I am a chunked response.")
- }))
- defer ts.Close()
-
- res, err := Get(ts.URL)
- if err != nil {
- t.Fatalf("Get error: %v", err)
- }
- defer res.Body.Close()
- if g, e := res.ContentLength, int64(-1); g != e {
- t.Errorf("expected ContentLength of %d; got %d", e, g)
- }
- if g, e := res.TransferEncoding, []string{"chunked"}; !reflect.DeepEqual(g, e) {
- t.Errorf("expected TransferEncoding of %v; got %v", e, g)
- }
- if _, haveCL := res.Header["Content-Length"]; haveCL {
- t.Errorf("Unexpected Content-Length")
- }
-}
-
-// Test304Responses verifies that 304s don't declare that they're
-// chunking in their response headers and aren't allowed to produce
-// output.
-func Test304Responses(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- w.WriteHeader(StatusNotModified)
- _, err := w.Write([]byte("illegal body"))
- if err != ErrBodyNotAllowed {
- t.Errorf("on Write, expected ErrBodyNotAllowed, got %v", err)
- }
- }))
- defer ts.Close()
- res, err := Get(ts.URL)
- if err != nil {
- t.Error(err)
- }
- if len(res.TransferEncoding) > 0 {
- t.Errorf("expected no TransferEncoding; got %v", res.TransferEncoding)
- }
- body, err := ioutil.ReadAll(res.Body)
- if err != nil {
- t.Error(err)
- }
- if len(body) > 0 {
- t.Errorf("got unexpected body %q", string(body))
- }
-}
-
-// TestHeadResponses verifies that all MIME type sniffing and Content-Length
-// counting of GET requests also happens on HEAD requests.
-func TestHeadResponses(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- _, err := w.Write([]byte("<html>"))
- if err != nil {
- t.Errorf("ResponseWriter.Write: %v", err)
- }
-
- // Also exercise the ReaderFrom path
- _, err = io.Copy(w, strings.NewReader("789a"))
- if err != nil {
- t.Errorf("Copy(ResponseWriter, ...): %v", err)
- }
- }))
- defer ts.Close()
- res, err := Head(ts.URL)
- if err != nil {
- t.Error(err)
- }
- if len(res.TransferEncoding) > 0 {
- t.Errorf("expected no TransferEncoding; got %v", res.TransferEncoding)
- }
- if ct := res.Header.Get("Content-Type"); ct != "text/html; charset=utf-8" {
- t.Errorf("Content-Type: %q; want text/html; charset=utf-8", ct)
- }
- if v := res.ContentLength; v != 10 {
- t.Errorf("Content-Length: %d; want 10", v)
- }
- body, err := ioutil.ReadAll(res.Body)
- if err != nil {
- t.Error(err)
- }
- if len(body) > 0 {
- t.Errorf("got unexpected body %q", string(body))
- }
-}
-
-func TestTLSHandshakeTimeout(t *testing.T) {
- if runtime.GOOS == "plan9" {
- t.Skip("skipping test; see http://golang.org/issue/7237")
- }
- defer afterTest(t)
- ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
- errc := make(chanWriter, 10) // but only expecting 1
- ts.Config.ReadTimeout = 250 * time.Millisecond
- ts.Config.ErrorLog = log.New(errc, "", 0)
- ts.StartTLS()
- defer ts.Close()
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- defer conn.Close()
- goTimeout(t, 10*time.Second, func() {
- var buf [1]byte
- n, err := conn.Read(buf[:])
- if err == nil || n != 0 {
- t.Errorf("Read = %d, %v; want an error and no bytes", n, err)
- }
- })
- select {
- case v := <-errc:
- if !strings.Contains(v, "timeout") && !strings.Contains(v, "TLS handshake") {
- t.Errorf("expected a TLS handshake timeout error; got %q", v)
- }
- case <-time.After(5 * time.Second):
- t.Errorf("timeout waiting for logged error")
- }
-}
-
-func TestTLSServer(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- if r.TLS != nil {
- w.Header().Set("X-TLS-Set", "true")
- if r.TLS.HandshakeComplete {
- w.Header().Set("X-TLS-HandshakeComplete", "true")
- }
- }
- }))
- ts.Config.ErrorLog = log.New(ioutil.Discard, "", 0)
- defer ts.Close()
-
- // Connect an idle TCP connection to this server before we run
- // our real tests. This idle connection used to block forever
- // in the TLS handshake, preventing future connections from
- // being accepted. It may prevent future accidental blocking
- // in newConn.
- idleConn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- defer idleConn.Close()
- goTimeout(t, 10*time.Second, func() {
- if !strings.HasPrefix(ts.URL, "https://") {
- t.Errorf("expected test TLS server to start with https://, got %q", ts.URL)
- return
- }
- noVerifyTransport := &Transport{
- TLSClientConfig: &tls.Config{
- InsecureSkipVerify: true,
- },
- }
- client := &Client{Transport: noVerifyTransport}
- res, err := client.Get(ts.URL)
- if err != nil {
- t.Error(err)
- return
- }
- if res == nil {
- t.Errorf("got nil Response")
- return
- }
- defer res.Body.Close()
- if res.Header.Get("X-TLS-Set") != "true" {
- t.Errorf("expected X-TLS-Set response header")
- return
- }
- if res.Header.Get("X-TLS-HandshakeComplete") != "true" {
- t.Errorf("expected X-TLS-HandshakeComplete header")
- }
- })
-}
-
-type serverExpectTest struct {
- contentLength int // of request body
- chunked bool
- expectation string // e.g. "100-continue"
- readBody bool // whether handler should read the body (if false, sends StatusUnauthorized)
- expectedResponse string // expected substring in first line of http response
-}
-
-func expectTest(contentLength int, expectation string, readBody bool, expectedResponse string) serverExpectTest {
- return serverExpectTest{
- contentLength: contentLength,
- expectation: expectation,
- readBody: readBody,
- expectedResponse: expectedResponse,
- }
-}
-
-var serverExpectTests = []serverExpectTest{
- // Normal 100-continues, case-insensitive.
- expectTest(100, "100-continue", true, "100 Continue"),
- expectTest(100, "100-cOntInUE", true, "100 Continue"),
-
- // No 100-continue.
- expectTest(100, "", true, "200 OK"),
-
- // 100-continue but requesting client to deny us,
- // so it never reads the body.
- expectTest(100, "100-continue", false, "401 Unauthorized"),
- // Likewise without 100-continue:
- expectTest(100, "", false, "401 Unauthorized"),
-
- // Non-standard expectations are failures
- expectTest(0, "a-pony", false, "417 Expectation Failed"),
-
- // Expect-100 requested but no body (is apparently okay: Issue 7625)
- expectTest(0, "100-continue", true, "200 OK"),
- // Expect-100 requested but handler doesn't read the body
- expectTest(0, "100-continue", false, "401 Unauthorized"),
- // Expect-100 continue with no body, but a chunked body.
- {
- expectation: "100-continue",
- readBody: true,
- chunked: true,
- expectedResponse: "100 Continue",
- },
-}
-
-// Tests that the server responds to the "Expect" request header
-// correctly.
-func TestServerExpect(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- // Note using r.FormValue("readbody") because for POST
- // requests that would read from r.Body, which we only
- // conditionally want to do.
- if strings.Contains(r.URL.RawQuery, "readbody=true") {
- ioutil.ReadAll(r.Body)
- w.Write([]byte("Hi"))
- } else {
- w.WriteHeader(StatusUnauthorized)
- }
- }))
- defer ts.Close()
-
- runTest := func(test serverExpectTest) {
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- defer conn.Close()
-
- // Only send the body immediately if we're acting like an HTTP client
- // that doesn't send 100-continue expectations.
- writeBody := test.contentLength != 0 && strings.ToLower(test.expectation) != "100-continue"
-
- go func() {
- contentLen := fmt.Sprintf("Content-Length: %d", test.contentLength)
- if test.chunked {
- contentLen = "Transfer-Encoding: chunked"
- }
- _, err := fmt.Fprintf(conn, "POST /?readbody=%v HTTP/1.1\r\n"+
- "Connection: close\r\n"+
- "%s\r\n"+
- "Expect: %s\r\nHost: foo\r\n\r\n",
- test.readBody, contentLen, test.expectation)
- if err != nil {
- t.Errorf("On test %#v, error writing request headers: %v", test, err)
- return
- }
- if writeBody {
- var targ io.WriteCloser = struct {
- io.Writer
- io.Closer
- }{
- conn,
- ioutil.NopCloser(nil),
- }
- if test.chunked {
- targ = httputil.NewChunkedWriter(conn)
- }
- body := strings.Repeat("A", test.contentLength)
- _, err = fmt.Fprint(targ, body)
- if err == nil {
- err = targ.Close()
- }
- if err != nil {
- if !test.readBody {
- // Server likely already hung up on us.
- // See larger comment below.
- t.Logf("On test %#v, acceptable error writing request body: %v", test, err)
- return
- }
- t.Errorf("On test %#v, error writing request body: %v", test, err)
- }
- }
- }()
- bufr := bufio.NewReader(conn)
- line, err := bufr.ReadString('\n')
- if err != nil {
- if writeBody && !test.readBody {
- // This is an acceptable failure due to a possible TCP race:
- // We were still writing data and the server hung up on us. A TCP
- // implementation may send a RST if our request body data was known
- // to be lost, which may trigger our reads to fail.
- // See RFC 1122 page 88.
- t.Logf("On test %#v, acceptable error from ReadString: %v", test, err)
- return
- }
- t.Fatalf("On test %#v, ReadString: %v", test, err)
- }
- if !strings.Contains(line, test.expectedResponse) {
- t.Errorf("On test %#v, got first line = %q; want %q", test, line, test.expectedResponse)
- }
- }
-
- for _, test := range serverExpectTests {
- runTest(test)
- }
-}
-
-// Under a ~256KB (maxPostHandlerReadBytes) threshold, the server
-// should consume client request bodies that a handler didn't read.
-func TestServerUnreadRequestBodyLittle(t *testing.T) {
- conn := new(testConn)
- body := strings.Repeat("x", 100<<10)
- conn.readBuf.Write([]byte(fmt.Sprintf(
- "POST / HTTP/1.1\r\n"+
- "Host: test\r\n"+
- "Content-Length: %d\r\n"+
- "\r\n", len(body))))
- conn.readBuf.Write([]byte(body))
-
- done := make(chan bool)
-
- ls := &oneConnListener{conn}
- go Serve(ls, HandlerFunc(func(rw ResponseWriter, req *Request) {
- defer close(done)
- if conn.readBuf.Len() < len(body)/2 {
- t.Errorf("on request, read buffer length is %d; expected about 100 KB", conn.readBuf.Len())
- }
- rw.WriteHeader(200)
- rw.(Flusher).Flush()
- if g, e := conn.readBuf.Len(), 0; g != e {
- t.Errorf("after WriteHeader, read buffer length is %d; want %d", g, e)
- }
- if c := rw.Header().Get("Connection"); c != "" {
- t.Errorf(`Connection header = %q; want ""`, c)
- }
- }))
- <-done
-}
-
-// Over a ~256KB (maxPostHandlerReadBytes) threshold, the server
-// should ignore client request bodies that a handler didn't read
-// and close the connection.
-func TestServerUnreadRequestBodyLarge(t *testing.T) {
- conn := new(testConn)
- body := strings.Repeat("x", 1<<20)
- conn.readBuf.Write([]byte(fmt.Sprintf(
- "POST / HTTP/1.1\r\n"+
- "Host: test\r\n"+
- "Content-Length: %d\r\n"+
- "\r\n", len(body))))
- conn.readBuf.Write([]byte(body))
- conn.closec = make(chan bool, 1)
-
- ls := &oneConnListener{conn}
- go Serve(ls, HandlerFunc(func(rw ResponseWriter, req *Request) {
- if conn.readBuf.Len() < len(body)/2 {
- t.Errorf("on request, read buffer length is %d; expected about 1MB", conn.readBuf.Len())
- }
- rw.WriteHeader(200)
- rw.(Flusher).Flush()
- if conn.readBuf.Len() < len(body)/2 {
- t.Errorf("post-WriteHeader, read buffer length is %d; expected about 1MB", conn.readBuf.Len())
- }
- }))
- <-conn.closec
-
- if res := conn.writeBuf.String(); !strings.Contains(res, "Connection: close") {
- t.Errorf("Expected a Connection: close header; got response: %s", res)
- }
-}
-
-func TestTimeoutHandler(t *testing.T) {
- defer afterTest(t)
- sendHi := make(chan bool, 1)
- writeErrors := make(chan error, 1)
- sayHi := HandlerFunc(func(w ResponseWriter, r *Request) {
- <-sendHi
- _, werr := w.Write([]byte("hi"))
- writeErrors <- werr
- })
- timeout := make(chan time.Time, 1) // write to this to force timeouts
- ts := httptest.NewServer(NewTestTimeoutHandler(sayHi, timeout))
- defer ts.Close()
-
- // Succeed without timing out:
- sendHi <- true
- res, err := Get(ts.URL)
- if err != nil {
- t.Error(err)
- }
- if g, e := res.StatusCode, StatusOK; g != e {
- t.Errorf("got res.StatusCode %d; expected %d", g, e)
- }
- body, _ := ioutil.ReadAll(res.Body)
- if g, e := string(body), "hi"; g != e {
- t.Errorf("got body %q; expected %q", g, e)
- }
- if g := <-writeErrors; g != nil {
- t.Errorf("got unexpected Write error on first request: %v", g)
- }
-
- // Times out:
- timeout <- time.Time{}
- res, err = Get(ts.URL)
- if err != nil {
- t.Error(err)
- }
- if g, e := res.StatusCode, StatusServiceUnavailable; g != e {
- t.Errorf("got res.StatusCode %d; expected %d", g, e)
- }
- body, _ = ioutil.ReadAll(res.Body)
- if !strings.Contains(string(body), "<title>Timeout</title>") {
- t.Errorf("expected timeout body; got %q", string(body))
- }
-
- // Now make the previously-timed out handler speak again,
- // which verifies the panic is handled:
- sendHi <- true
- if g, e := <-writeErrors, ErrHandlerTimeout; g != e {
- t.Errorf("expected Write error of %v; got %v", e, g)
- }
-}
-
-// Verifies we don't path.Clean() on the wrong parts in redirects.
-func TestRedirectMunging(t *testing.T) {
- req, _ := NewRequest("GET", "http://example.com/", nil)
-
- resp := httptest.NewRecorder()
- Redirect(resp, req, "/foo?next=http://bar.com/", 302)
- if g, e := resp.Header().Get("Location"), "/foo?next=http://bar.com/"; g != e {
- t.Errorf("Location header was %q; want %q", g, e)
- }
-
- resp = httptest.NewRecorder()
- Redirect(resp, req, "http://localhost:8080/_ah/login?continue=http://localhost:8080/", 302)
- if g, e := resp.Header().Get("Location"), "http://localhost:8080/_ah/login?continue=http://localhost:8080/"; g != e {
- t.Errorf("Location header was %q; want %q", g, e)
- }
-}
-
-func TestRedirectBadPath(t *testing.T) {
- // This used to crash. It's not valid input (bad path), but it
- // shouldn't crash.
- rr := httptest.NewRecorder()
- req := &Request{
- Method: "GET",
- URL: &url.URL{
- Scheme: "http",
- Path: "not-empty-but-no-leading-slash", // bogus
- },
- }
- Redirect(rr, req, "", 304)
- if rr.Code != 304 {
- t.Errorf("Code = %d; want 304", rr.Code)
- }
-}
-
-// TestZeroLengthPostAndResponse exercises an optimization done by the Transport:
-// when there is no body (either because the method doesn't permit a body, or an
-// explicit Content-Length of zero is present), then the transport can re-use the
-// connection immediately. But when it re-uses the connection, it typically closes
-// the previous request's body, which is not optimal for zero-lengthed bodies,
-// as the client would then see http.ErrBodyReadAfterClose and not 0, io.EOF.
-func TestZeroLengthPostAndResponse(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, r *Request) {
- all, err := ioutil.ReadAll(r.Body)
- if err != nil {
- t.Fatalf("handler ReadAll: %v", err)
- }
- if len(all) != 0 {
- t.Errorf("handler got %d bytes; expected 0", len(all))
- }
- rw.Header().Set("Content-Length", "0")
- }))
- defer ts.Close()
-
- req, err := NewRequest("POST", ts.URL, strings.NewReader(""))
- if err != nil {
- t.Fatal(err)
- }
- req.ContentLength = 0
-
- var resp [5]*Response
- for i := range resp {
- resp[i], err = DefaultClient.Do(req)
- if err != nil {
- t.Fatalf("client post #%d: %v", i, err)
- }
- }
-
- for i := range resp {
- all, err := ioutil.ReadAll(resp[i].Body)
- if err != nil {
- t.Fatalf("req #%d: client ReadAll: %v", i, err)
- }
- if len(all) != 0 {
- t.Errorf("req #%d: client got %d bytes; expected 0", i, len(all))
- }
- }
-}
-
-func TestHandlerPanicNil(t *testing.T) {
- testHandlerPanic(t, false, nil)
-}
-
-func TestHandlerPanic(t *testing.T) {
- testHandlerPanic(t, false, "intentional death for testing")
-}
-
-func TestHandlerPanicWithHijack(t *testing.T) {
- testHandlerPanic(t, true, "intentional death for testing")
-}
-
-func testHandlerPanic(t *testing.T, withHijack bool, panicValue interface{}) {
- defer afterTest(t)
- // Unlike the other tests that set the log output to ioutil.Discard
- // to quiet the output, this test uses a pipe. The pipe serves three
- // purposes:
- //
- // 1) The log.Print from the http server (generated by the caught
- // panic) will go to the pipe instead of stderr, making the
- // output quiet.
- //
- // 2) We read from the pipe to verify that the handler
- // actually caught the panic and logged something.
- //
- // 3) The blocking Read call prevents this TestHandlerPanic
- // function from exiting before the HTTP server handler
- // finishes crashing. If this text function exited too
- // early (and its defer log.SetOutput(os.Stderr) ran),
- // then the crash output could spill into the next test.
- pr, pw := io.Pipe()
- log.SetOutput(pw)
- defer log.SetOutput(os.Stderr)
- defer pw.Close()
-
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- if withHijack {
- rwc, _, err := w.(Hijacker).Hijack()
- if err != nil {
- t.Logf("unexpected error: %v", err)
- }
- defer rwc.Close()
- }
- panic(panicValue)
- }))
- defer ts.Close()
-
- // Do a blocking read on the log output pipe so its logging
- // doesn't bleed into the next test. But wait only 5 seconds
- // for it.
- done := make(chan bool, 1)
- go func() {
- buf := make([]byte, 4<<10)
- _, err := pr.Read(buf)
- pr.Close()
- if err != nil && err != io.EOF {
- t.Error(err)
- }
- done <- true
- }()
-
- _, err := Get(ts.URL)
- if err == nil {
- t.Logf("expected an error")
- }
-
- if panicValue == nil {
- return
- }
-
- select {
- case <-done:
- return
- case <-time.After(5 * time.Second):
- t.Fatal("expected server handler to log an error")
- }
-}
-
-func TestNoDate(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header()["Date"] = nil
- }))
- defer ts.Close()
- res, err := Get(ts.URL)
- if err != nil {
- t.Fatal(err)
- }
- _, present := res.Header["Date"]
- if present {
- t.Fatalf("Expected no Date header; got %v", res.Header["Date"])
- }
-}
-
-func TestStripPrefix(t *testing.T) {
- defer afterTest(t)
- h := HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("X-Path", r.URL.Path)
- })
- ts := httptest.NewServer(StripPrefix("/foo", h))
- defer ts.Close()
-
- res, err := Get(ts.URL + "/foo/bar")
- if err != nil {
- t.Fatal(err)
- }
- if g, e := res.Header.Get("X-Path"), "/bar"; g != e {
- t.Errorf("test 1: got %s, want %s", g, e)
- }
- res.Body.Close()
-
- res, err = Get(ts.URL + "/bar")
- if err != nil {
- t.Fatal(err)
- }
- if g, e := res.StatusCode, 404; g != e {
- t.Errorf("test 2: got status %v, want %v", g, e)
- }
- res.Body.Close()
-}
-
-func TestRequestLimit(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- t.Fatalf("didn't expect to get request in Handler")
- }))
- defer ts.Close()
- req, _ := NewRequest("GET", ts.URL, nil)
- var bytesPerHeader = len("header12345: val12345\r\n")
- for i := 0; i < ((DefaultMaxHeaderBytes+4096)/bytesPerHeader)+1; i++ {
- req.Header.Set(fmt.Sprintf("header%05d", i), fmt.Sprintf("val%05d", i))
- }
- res, err := DefaultClient.Do(req)
- if err != nil {
- // Some HTTP clients may fail on this undefined behavior (server replying and
- // closing the connection while the request is still being written), but
- // we do support it (at least currently), so we expect a response below.
- t.Fatalf("Do: %v", err)
- }
- defer res.Body.Close()
- if res.StatusCode != 413 {
- t.Fatalf("expected 413 response status; got: %d %s", res.StatusCode, res.Status)
- }
-}
-
-type neverEnding byte
-
-func (b neverEnding) Read(p []byte) (n int, err error) {
- for i := range p {
- p[i] = byte(b)
- }
- return len(p), nil
-}
-
-type countReader struct {
- r io.Reader
- n *int64
-}
-
-func (cr countReader) Read(p []byte) (n int, err error) {
- n, err = cr.r.Read(p)
- atomic.AddInt64(cr.n, int64(n))
- return
-}
-
-func TestRequestBodyLimit(t *testing.T) {
- defer afterTest(t)
- const limit = 1 << 20
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- r.Body = MaxBytesReader(w, r.Body, limit)
- n, err := io.Copy(ioutil.Discard, r.Body)
- if err == nil {
- t.Errorf("expected error from io.Copy")
- }
- if n != limit {
- t.Errorf("io.Copy = %d, want %d", n, limit)
- }
- }))
- defer ts.Close()
-
- nWritten := new(int64)
- req, _ := NewRequest("POST", ts.URL, io.LimitReader(countReader{neverEnding('a'), nWritten}, limit*200))
-
- // Send the POST, but don't care it succeeds or not. The
- // remote side is going to reply and then close the TCP
- // connection, and HTTP doesn't really define if that's
- // allowed or not. Some HTTP clients will get the response
- // and some (like ours, currently) will complain that the
- // request write failed, without reading the response.
- //
- // But that's okay, since what we're really testing is that
- // the remote side hung up on us before we wrote too much.
- _, _ = DefaultClient.Do(req)
-
- if atomic.LoadInt64(nWritten) > limit*100 {
- t.Errorf("handler restricted the request body to %d bytes, but client managed to write %d",
- limit, nWritten)
- }
-}
-
-// TestClientWriteShutdown tests that if the client shuts down the write
-// side of their TCP connection, the server doesn't send a 400 Bad Request.
-func TestClientWriteShutdown(t *testing.T) {
- if runtime.GOOS == "plan9" {
- t.Skip("skipping test; see http://golang.org/issue/7237")
- }
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
- defer ts.Close()
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- err = conn.(*net.TCPConn).CloseWrite()
- if err != nil {
- t.Fatalf("Dial: %v", err)
- }
- donec := make(chan bool)
- go func() {
- defer close(donec)
- bs, err := ioutil.ReadAll(conn)
- if err != nil {
- t.Fatalf("ReadAll: %v", err)
- }
- got := string(bs)
- if got != "" {
- t.Errorf("read %q from server; want nothing", got)
- }
- }()
- select {
- case <-donec:
- case <-time.After(10 * time.Second):
- t.Fatalf("timeout")
- }
-}
-
-// Tests that chunked server responses that write 1 byte at a time are
-// buffered before chunk headers are added, not after chunk headers.
-func TestServerBufferedChunking(t *testing.T) {
- conn := new(testConn)
- conn.readBuf.Write([]byte("GET / HTTP/1.1\r\n\r\n"))
- conn.closec = make(chan bool, 1)
- ls := &oneConnListener{conn}
- go Serve(ls, HandlerFunc(func(rw ResponseWriter, req *Request) {
- rw.(Flusher).Flush() // force the Header to be sent, in chunking mode, not counting the length
- rw.Write([]byte{'x'})
- rw.Write([]byte{'y'})
- rw.Write([]byte{'z'})
- }))
- <-conn.closec
- if !bytes.HasSuffix(conn.writeBuf.Bytes(), []byte("\r\n\r\n3\r\nxyz\r\n0\r\n\r\n")) {
- t.Errorf("response didn't end with a single 3 byte 'xyz' chunk; got:\n%q",
- conn.writeBuf.Bytes())
- }
-}
-
-// Tests that the server flushes its response headers out when it's
-// ignoring the response body and waits a bit before forcefully
-// closing the TCP connection, causing the client to get a RST.
-// See http://golang.org/issue/3595
-func TestServerGracefulClose(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- Error(w, "bye", StatusUnauthorized)
- }))
- defer ts.Close()
-
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- defer conn.Close()
- const bodySize = 5 << 20
- req := []byte(fmt.Sprintf("POST / HTTP/1.1\r\nHost: foo.com\r\nContent-Length: %d\r\n\r\n", bodySize))
- for i := 0; i < bodySize; i++ {
- req = append(req, 'x')
- }
- writeErr := make(chan error)
- go func() {
- _, err := conn.Write(req)
- writeErr <- err
- }()
- br := bufio.NewReader(conn)
- lineNum := 0
- for {
- line, err := br.ReadString('\n')
- if err == io.EOF {
- break
- }
- if err != nil {
- t.Fatalf("ReadLine: %v", err)
- }
- lineNum++
- if lineNum == 1 && !strings.Contains(line, "401 Unauthorized") {
- t.Errorf("Response line = %q; want a 401", line)
- }
- }
- // Wait for write to finish. This is a broken pipe on both
- // Darwin and Linux, but checking this isn't the point of
- // the test.
- <-writeErr
-}
-
-func TestCaseSensitiveMethod(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- if r.Method != "get" {
- t.Errorf(`Got method %q; want "get"`, r.Method)
- }
- }))
- defer ts.Close()
- req, _ := NewRequest("get", ts.URL, nil)
- res, err := DefaultClient.Do(req)
- if err != nil {
- t.Error(err)
- return
- }
- res.Body.Close()
-}
-
-// TestContentLengthZero tests that for both an HTTP/1.0 and HTTP/1.1
-// request (both keep-alive), when a Handler never writes any
-// response, the net/http package adds a "Content-Length: 0" response
-// header.
-func TestContentLengthZero(t *testing.T) {
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {}))
- defer ts.Close()
-
- for _, version := range []string{"HTTP/1.0", "HTTP/1.1"} {
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("error dialing: %v", err)
- }
- _, err = fmt.Fprintf(conn, "GET / %v\r\nConnection: keep-alive\r\nHost: foo\r\n\r\n", version)
- if err != nil {
- t.Fatalf("error writing: %v", err)
- }
- req, _ := NewRequest("GET", "/", nil)
- res, err := ReadResponse(bufio.NewReader(conn), req)
- if err != nil {
- t.Fatalf("error reading response: %v", err)
- }
- if te := res.TransferEncoding; len(te) > 0 {
- t.Errorf("For version %q, Transfer-Encoding = %q; want none", version, te)
- }
- if cl := res.ContentLength; cl != 0 {
- t.Errorf("For version %q, Content-Length = %v; want 0", version, cl)
- }
- conn.Close()
- }
-}
-
-func TestCloseNotifier(t *testing.T) {
- defer afterTest(t)
- gotReq := make(chan bool, 1)
- sawClose := make(chan bool, 1)
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- gotReq <- true
- cc := rw.(CloseNotifier).CloseNotify()
- <-cc
- sawClose <- true
- }))
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatalf("error dialing: %v", err)
- }
- diec := make(chan bool)
- go func() {
- _, err = fmt.Fprintf(conn, "GET / HTTP/1.1\r\nConnection: keep-alive\r\nHost: foo\r\n\r\n")
- if err != nil {
- t.Fatal(err)
- }
- <-diec
- conn.Close()
- }()
-For:
- for {
- select {
- case <-gotReq:
- diec <- true
- case <-sawClose:
- break For
- case <-time.After(5 * time.Second):
- t.Fatal("timeout")
- }
- }
- ts.Close()
-}
-
-func TestCloseNotifierChanLeak(t *testing.T) {
- defer afterTest(t)
- req := reqBytes("GET / HTTP/1.0\nHost: golang.org")
- for i := 0; i < 20; i++ {
- var output bytes.Buffer
- conn := &rwTestConn{
- Reader: bytes.NewReader(req),
- Writer: &output,
- closec: make(chan bool, 1),
- }
- ln := &oneConnListener{conn: conn}
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- // Ignore the return value and never read from
- // it, testing that we don't leak goroutines
- // on the sending side:
- _ = rw.(CloseNotifier).CloseNotify()
- })
- go Serve(ln, handler)
- <-conn.closec
- }
-}
-
-func TestOptions(t *testing.T) {
- uric := make(chan string, 2) // only expect 1, but leave space for 2
- mux := NewServeMux()
- mux.HandleFunc("/", func(w ResponseWriter, r *Request) {
- uric <- r.RequestURI
- })
- ts := httptest.NewServer(mux)
- defer ts.Close()
-
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- defer conn.Close()
-
- // An OPTIONS * request should succeed.
- _, err = conn.Write([]byte("OPTIONS * HTTP/1.1\r\nHost: foo.com\r\n\r\n"))
- if err != nil {
- t.Fatal(err)
- }
- br := bufio.NewReader(conn)
- res, err := ReadResponse(br, &Request{Method: "OPTIONS"})
- if err != nil {
- t.Fatal(err)
- }
- if res.StatusCode != 200 {
- t.Errorf("Got non-200 response to OPTIONS *: %#v", res)
- }
-
- // A GET * request on a ServeMux should fail.
- _, err = conn.Write([]byte("GET * HTTP/1.1\r\nHost: foo.com\r\n\r\n"))
- if err != nil {
- t.Fatal(err)
- }
- res, err = ReadResponse(br, &Request{Method: "GET"})
- if err != nil {
- t.Fatal(err)
- }
- if res.StatusCode != 400 {
- t.Errorf("Got non-400 response to GET *: %#v", res)
- }
-
- res, err = Get(ts.URL + "/second")
- if err != nil {
- t.Fatal(err)
- }
- res.Body.Close()
- if got := <-uric; got != "/second" {
- t.Errorf("Handler saw request for %q; want /second", got)
- }
-}
-
-// Tests regarding the ordering of Write, WriteHeader, Header, and
-// Flush calls. In Go 1.0, rw.WriteHeader immediately flushed the
-// (*response).header to the wire. In Go 1.1, the actual wire flush is
-// delayed, so we could maybe tack on a Content-Length and better
-// Content-Type after we see more (or all) of the output. To preserve
-// compatibility with Go 1, we need to be careful to track which
-// headers were live at the time of WriteHeader, so we write the same
-// ones, even if the handler modifies them (~erroneously) after the
-// first Write.
-func TestHeaderToWire(t *testing.T) {
- tests := []struct {
- name string
- handler func(ResponseWriter, *Request)
- check func(output string) error
- }{
- {
- name: "write without Header",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Write([]byte("hello world"))
- },
- check: func(got string) error {
- if !strings.Contains(got, "Content-Length:") {
- return errors.New("no content-length")
- }
- if !strings.Contains(got, "Content-Type: text/plain") {
- return errors.New("no content-length")
- }
- return nil
- },
- },
- {
- name: "Header mutation before write",
- handler: func(rw ResponseWriter, r *Request) {
- h := rw.Header()
- h.Set("Content-Type", "some/type")
- rw.Write([]byte("hello world"))
- h.Set("Too-Late", "bogus")
- },
- check: func(got string) error {
- if !strings.Contains(got, "Content-Length:") {
- return errors.New("no content-length")
- }
- if !strings.Contains(got, "Content-Type: some/type") {
- return errors.New("wrong content-type")
- }
- if strings.Contains(got, "Too-Late") {
- return errors.New("don't want too-late header")
- }
- return nil
- },
- },
- {
- name: "write then useless Header mutation",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Write([]byte("hello world"))
- rw.Header().Set("Too-Late", "Write already wrote headers")
- },
- check: func(got string) error {
- if strings.Contains(got, "Too-Late") {
- return errors.New("header appeared from after WriteHeader")
- }
- return nil
- },
- },
- {
- name: "flush then write",
- handler: func(rw ResponseWriter, r *Request) {
- rw.(Flusher).Flush()
- rw.Write([]byte("post-flush"))
- rw.Header().Set("Too-Late", "Write already wrote headers")
- },
- check: func(got string) error {
- if !strings.Contains(got, "Transfer-Encoding: chunked") {
- return errors.New("not chunked")
- }
- if strings.Contains(got, "Too-Late") {
- return errors.New("header appeared from after WriteHeader")
- }
- return nil
- },
- },
- {
- name: "header then flush",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Header().Set("Content-Type", "some/type")
- rw.(Flusher).Flush()
- rw.Write([]byte("post-flush"))
- rw.Header().Set("Too-Late", "Write already wrote headers")
- },
- check: func(got string) error {
- if !strings.Contains(got, "Transfer-Encoding: chunked") {
- return errors.New("not chunked")
- }
- if strings.Contains(got, "Too-Late") {
- return errors.New("header appeared from after WriteHeader")
- }
- if !strings.Contains(got, "Content-Type: some/type") {
- return errors.New("wrong content-length")
- }
- return nil
- },
- },
- {
- name: "sniff-on-first-write content-type",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Write([]byte("<html><head></head><body>some html</body></html>"))
- rw.Header().Set("Content-Type", "x/wrong")
- },
- check: func(got string) error {
- if !strings.Contains(got, "Content-Type: text/html") {
- return errors.New("wrong content-length; want html")
- }
- return nil
- },
- },
- {
- name: "explicit content-type wins",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Header().Set("Content-Type", "some/type")
- rw.Write([]byte("<html><head></head><body>some html</body></html>"))
- },
- check: func(got string) error {
- if !strings.Contains(got, "Content-Type: some/type") {
- return errors.New("wrong content-length; want html")
- }
- return nil
- },
- },
- {
- name: "empty handler",
- handler: func(rw ResponseWriter, r *Request) {
- },
- check: func(got string) error {
- if !strings.Contains(got, "Content-Type: text/plain") {
- return errors.New("wrong content-length; want text/plain")
- }
- if !strings.Contains(got, "Content-Length: 0") {
- return errors.New("want 0 content-length")
- }
- return nil
- },
- },
- {
- name: "only Header, no write",
- handler: func(rw ResponseWriter, r *Request) {
- rw.Header().Set("Some-Header", "some-value")
- },
- check: func(got string) error {
- if !strings.Contains(got, "Some-Header") {
- return errors.New("didn't get header")
- }
- return nil
- },
- },
- {
- name: "WriteHeader call",
- handler: func(rw ResponseWriter, r *Request) {
- rw.WriteHeader(404)
- rw.Header().Set("Too-Late", "some-value")
- },
- check: func(got string) error {
- if !strings.Contains(got, "404") {
- return errors.New("wrong status")
- }
- if strings.Contains(got, "Some-Header") {
- return errors.New("shouldn't have seen Too-Late")
- }
- return nil
- },
- },
- }
- for _, tc := range tests {
- ht := newHandlerTest(HandlerFunc(tc.handler))
- got := ht.rawResponse("GET / HTTP/1.1\nHost: golang.org")
- if err := tc.check(got); err != nil {
- t.Errorf("%s: %v\nGot response:\n%s", tc.name, err, got)
- }
- }
-}
-
-// goTimeout runs f, failing t if f takes more than ns to complete.
-func goTimeout(t *testing.T, d time.Duration, f func()) {
- ch := make(chan bool, 2)
- timer := time.AfterFunc(d, func() {
- t.Errorf("Timeout expired after %v", d)
- ch <- true
- })
- defer timer.Stop()
- go func() {
- defer func() { ch <- true }()
- f()
- }()
- <-ch
-}
-
-type errorListener struct {
- errs []error
-}
-
-func (l *errorListener) Accept() (c net.Conn, err error) {
- if len(l.errs) == 0 {
- return nil, io.EOF
- }
- err = l.errs[0]
- l.errs = l.errs[1:]
- return
-}
-
-func (l *errorListener) Close() error {
- return nil
-}
-
-func (l *errorListener) Addr() net.Addr {
- return dummyAddr("test-address")
-}
-
-func TestAcceptMaxFds(t *testing.T) {
- log.SetOutput(ioutil.Discard) // is noisy otherwise
- defer log.SetOutput(os.Stderr)
-
- ln := &errorListener{[]error{
- &net.OpError{
- Op: "accept",
- Err: syscall.EMFILE,
- }}}
- err := Serve(ln, HandlerFunc(HandlerFunc(func(ResponseWriter, *Request) {})))
- if err != io.EOF {
- t.Errorf("got error %v, want EOF", err)
- }
-}
-
-func TestWriteAfterHijack(t *testing.T) {
- req := reqBytes("GET / HTTP/1.1\nHost: golang.org")
- var buf bytes.Buffer
- wrotec := make(chan bool, 1)
- conn := &rwTestConn{
- Reader: bytes.NewReader(req),
- Writer: &buf,
- closec: make(chan bool, 1),
- }
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- conn, bufrw, err := rw.(Hijacker).Hijack()
- if err != nil {
- t.Error(err)
- return
- }
- go func() {
- bufrw.Write([]byte("[hijack-to-bufw]"))
- bufrw.Flush()
- conn.Write([]byte("[hijack-to-conn]"))
- conn.Close()
- wrotec <- true
- }()
- })
- ln := &oneConnListener{conn: conn}
- go Serve(ln, handler)
- <-conn.closec
- <-wrotec
- if g, w := buf.String(), "[hijack-to-bufw][hijack-to-conn]"; g != w {
- t.Errorf("wrote %q; want %q", g, w)
- }
-}
-
-func TestDoubleHijack(t *testing.T) {
- req := reqBytes("GET / HTTP/1.1\nHost: golang.org")
- var buf bytes.Buffer
- conn := &rwTestConn{
- Reader: bytes.NewReader(req),
- Writer: &buf,
- closec: make(chan bool, 1),
- }
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- conn, _, err := rw.(Hijacker).Hijack()
- if err != nil {
- t.Error(err)
- return
- }
- _, _, err = rw.(Hijacker).Hijack()
- if err == nil {
- t.Errorf("got err = nil; want err != nil")
- }
- conn.Close()
- })
- ln := &oneConnListener{conn: conn}
- go Serve(ln, handler)
- <-conn.closec
-}
-
-// http://code.google.com/p/go/issues/detail?id=5955
-// Note that this does not test the "request too large"
-// exit path from the http server. This is intentional;
-// not sending Connection: close is just a minor wire
-// optimization and is pointless if dealing with a
-// badly behaved client.
-func TestHTTP10ConnectionHeader(t *testing.T) {
- defer afterTest(t)
-
- mux := NewServeMux()
- mux.Handle("/", HandlerFunc(func(resp ResponseWriter, req *Request) {}))
- ts := httptest.NewServer(mux)
- defer ts.Close()
-
- // net/http uses HTTP/1.1 for requests, so write requests manually
- tests := []struct {
- req string // raw http request
- expect []string // expected Connection header(s)
- }{
- {
- req: "GET / HTTP/1.0\r\n\r\n",
- expect: nil,
- },
- {
- req: "OPTIONS * HTTP/1.0\r\n\r\n",
- expect: nil,
- },
- {
- req: "GET / HTTP/1.0\r\nConnection: keep-alive\r\n\r\n",
- expect: []string{"keep-alive"},
- },
- }
-
- for _, tt := range tests {
- conn, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal("dial err:", err)
- }
-
- _, err = fmt.Fprint(conn, tt.req)
- if err != nil {
- t.Fatal("conn write err:", err)
- }
-
- resp, err := ReadResponse(bufio.NewReader(conn), &Request{Method: "GET"})
- if err != nil {
- t.Fatal("ReadResponse err:", err)
- }
- conn.Close()
- resp.Body.Close()
-
- got := resp.Header["Connection"]
- if !reflect.DeepEqual(got, tt.expect) {
- t.Errorf("wrong Connection headers for request %q. Got %q expect %q", tt.req, got, tt.expect)
- }
- }
-}
-
-// See golang.org/issue/5660
-func TestServerReaderFromOrder(t *testing.T) {
- defer afterTest(t)
- pr, pw := io.Pipe()
- const size = 3 << 20
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- rw.Header().Set("Content-Type", "text/plain") // prevent sniffing path
- done := make(chan bool)
- go func() {
- io.Copy(rw, pr)
- close(done)
- }()
- time.Sleep(25 * time.Millisecond) // give Copy a chance to break things
- n, err := io.Copy(ioutil.Discard, req.Body)
- if err != nil {
- t.Errorf("handler Copy: %v", err)
- return
- }
- if n != size {
- t.Errorf("handler Copy = %d; want %d", n, size)
- }
- pw.Write([]byte("hi"))
- pw.Close()
- <-done
- }))
- defer ts.Close()
-
- req, err := NewRequest("POST", ts.URL, io.LimitReader(neverEnding('a'), size))
- if err != nil {
- t.Fatal(err)
- }
- res, err := DefaultClient.Do(req)
- if err != nil {
- t.Fatal(err)
- }
- all, err := ioutil.ReadAll(res.Body)
- if err != nil {
- t.Fatal(err)
- }
- res.Body.Close()
- if string(all) != "hi" {
- t.Errorf("Body = %q; want hi", all)
- }
-}
-
-// Issue 6157, Issue 6685
-func TestCodesPreventingContentTypeAndBody(t *testing.T) {
- for _, code := range []int{StatusNotModified, StatusNoContent, StatusContinue} {
- ht := newHandlerTest(HandlerFunc(func(w ResponseWriter, r *Request) {
- if r.URL.Path == "/header" {
- w.Header().Set("Content-Length", "123")
- }
- w.WriteHeader(code)
- if r.URL.Path == "/more" {
- w.Write([]byte("stuff"))
- }
- }))
- for _, req := range []string{
- "GET / HTTP/1.0",
- "GET /header HTTP/1.0",
- "GET /more HTTP/1.0",
- "GET / HTTP/1.1",
- "GET /header HTTP/1.1",
- "GET /more HTTP/1.1",
- } {
- got := ht.rawResponse(req)
- wantStatus := fmt.Sprintf("%d %s", code, StatusText(code))
- if !strings.Contains(got, wantStatus) {
- t.Errorf("Code %d: Wanted %q Modified for %q: %s", code, wantStatus, req, got)
- } else if strings.Contains(got, "Content-Length") {
- t.Errorf("Code %d: Got a Content-Length from %q: %s", code, req, got)
- } else if strings.Contains(got, "stuff") {
- t.Errorf("Code %d: Response contains a body from %q: %s", code, req, got)
- }
- }
- }
-}
-
-func TestContentTypeOkayOn204(t *testing.T) {
- ht := newHandlerTest(HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Content-Length", "123") // suppressed
- w.Header().Set("Content-Type", "foo/bar")
- w.WriteHeader(204)
- }))
- got := ht.rawResponse("GET / HTTP/1.1")
- if !strings.Contains(got, "Content-Type: foo/bar") {
- t.Errorf("Response = %q; want Content-Type: foo/bar", got)
- }
- if strings.Contains(got, "Content-Length: 123") {
- t.Errorf("Response = %q; don't want a Content-Length", got)
- }
-}
-
-// Issue 6995
-// A server Handler can receive a Request, and then turn around and
-// give a copy of that Request.Body out to the Transport (e.g. any
-// proxy). So then two people own that Request.Body (both the server
-// and the http client), and both think they can close it on failure.
-// Therefore, all incoming server requests Bodies need to be thread-safe.
-func TestTransportAndServerSharedBodyRace(t *testing.T) {
- defer afterTest(t)
-
- const bodySize = 1 << 20
-
- unblockBackend := make(chan bool)
- backend := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- io.CopyN(rw, req.Body, bodySize/2)
- <-unblockBackend
- }))
- defer backend.Close()
-
- backendRespc := make(chan *Response, 1)
- proxy := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- if req.RequestURI == "/foo" {
- rw.Write([]byte("bar"))
- return
- }
- req2, _ := NewRequest("POST", backend.URL, req.Body)
- req2.ContentLength = bodySize
-
- bresp, err := DefaultClient.Do(req2)
- if err != nil {
- t.Errorf("Proxy outbound request: %v", err)
- return
- }
- _, err = io.CopyN(ioutil.Discard, bresp.Body, bodySize/4)
- if err != nil {
- t.Errorf("Proxy copy error: %v", err)
- return
- }
- backendRespc <- bresp // to close later
-
- // Try to cause a race: Both the DefaultTransport and the proxy handler's Server
- // will try to read/close req.Body (aka req2.Body)
- DefaultTransport.(*Transport).CancelRequest(req2)
- rw.Write([]byte("OK"))
- }))
- defer proxy.Close()
-
- req, _ := NewRequest("POST", proxy.URL, io.LimitReader(neverEnding('a'), bodySize))
- res, err := DefaultClient.Do(req)
- if err != nil {
- t.Fatalf("Original request: %v", err)
- }
-
- // Cleanup, so we don't leak goroutines.
- res.Body.Close()
- close(unblockBackend)
- (<-backendRespc).Body.Close()
-}
-
-// Test that a hanging Request.Body.Read from another goroutine can't
-// cause the Handler goroutine's Request.Body.Close to block.
-func TestRequestBodyCloseDoesntBlock(t *testing.T) {
- t.Skipf("Skipping known issue; see golang.org/issue/7121")
- if testing.Short() {
- t.Skip("skipping in -short mode")
- }
- defer afterTest(t)
-
- readErrCh := make(chan error, 1)
- errCh := make(chan error, 2)
-
- server := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- go func(body io.Reader) {
- _, err := body.Read(make([]byte, 100))
- readErrCh <- err
- }(req.Body)
- time.Sleep(500 * time.Millisecond)
- }))
- defer server.Close()
-
- closeConn := make(chan bool)
- defer close(closeConn)
- go func() {
- conn, err := net.Dial("tcp", server.Listener.Addr().String())
- if err != nil {
- errCh <- err
- return
- }
- defer conn.Close()
- _, err = conn.Write([]byte("POST / HTTP/1.1\r\nConnection: close\r\nHost: foo\r\nContent-Length: 100000\r\n\r\n"))
- if err != nil {
- errCh <- err
- return
- }
- // And now just block, making the server block on our
- // 100000 bytes of body that will never arrive.
- <-closeConn
- }()
- select {
- case err := <-readErrCh:
- if err == nil {
- t.Error("Read was nil. Expected error.")
- }
- case err := <-errCh:
- t.Error(err)
- case <-time.After(5 * time.Second):
- t.Error("timeout")
- }
-}
-
-func TestResponseWriterWriteStringAllocs(t *testing.T) {
- ht := newHandlerTest(HandlerFunc(func(w ResponseWriter, r *Request) {
- if r.URL.Path == "/s" {
- io.WriteString(w, "Hello world")
- } else {
- w.Write([]byte("Hello world"))
- }
- }))
- before := testing.AllocsPerRun(50, func() { ht.rawResponse("GET / HTTP/1.0") })
- after := testing.AllocsPerRun(50, func() { ht.rawResponse("GET /s HTTP/1.0") })
- if int(after) >= int(before) {
- t.Errorf("WriteString allocs of %v >= Write allocs of %v", after, before)
- }
-}
-
-func TestAppendTime(t *testing.T) {
- var b [len(TimeFormat)]byte
- t1 := time.Date(2013, 9, 21, 15, 41, 0, 0, time.FixedZone("CEST", 2*60*60))
- res := ExportAppendTime(b[:0], t1)
- t2, err := ParseTime(string(res))
- if err != nil {
- t.Fatalf("Error parsing time: %s", err)
- }
- if !t1.Equal(t2) {
- t.Fatalf("Times differ; expected: %v, got %v (%s)", t1, t2, string(res))
- }
-}
-
-func TestServerConnState(t *testing.T) {
- defer afterTest(t)
- handler := map[string]func(w ResponseWriter, r *Request){
- "/": func(w ResponseWriter, r *Request) {
- fmt.Fprintf(w, "Hello.")
- },
- "/close": func(w ResponseWriter, r *Request) {
- w.Header().Set("Connection", "close")
- fmt.Fprintf(w, "Hello.")
- },
- "/hijack": func(w ResponseWriter, r *Request) {
- c, _, _ := w.(Hijacker).Hijack()
- c.Write([]byte("HTTP/1.0 200 OK\r\nConnection: close\r\n\r\nHello."))
- c.Close()
- },
- "/hijack-panic": func(w ResponseWriter, r *Request) {
- c, _, _ := w.(Hijacker).Hijack()
- c.Write([]byte("HTTP/1.0 200 OK\r\nConnection: close\r\n\r\nHello."))
- c.Close()
- panic("intentional panic")
- },
- }
- ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- handler[r.URL.Path](w, r)
- }))
- defer ts.Close()
-
- var mu sync.Mutex // guard stateLog and connID
- var stateLog = map[int][]ConnState{}
- var connID = map[net.Conn]int{}
-
- ts.Config.ErrorLog = log.New(ioutil.Discard, "", 0)
- ts.Config.ConnState = func(c net.Conn, state ConnState) {
- if c == nil {
- t.Errorf("nil conn seen in state %s", state)
- return
- }
- mu.Lock()
- defer mu.Unlock()
- id, ok := connID[c]
- if !ok {
- id = len(connID) + 1
- connID[c] = id
- }
- stateLog[id] = append(stateLog[id], state)
- }
- ts.Start()
-
- mustGet(t, ts.URL+"/")
- mustGet(t, ts.URL+"/close")
-
- mustGet(t, ts.URL+"/")
- mustGet(t, ts.URL+"/", "Connection", "close")
-
- mustGet(t, ts.URL+"/hijack")
- mustGet(t, ts.URL+"/hijack-panic")
-
- // New->Closed
- {
- c, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- c.Close()
- }
-
- // New->Active->Closed
- {
- c, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- if _, err := io.WriteString(c, "BOGUS REQUEST\r\n\r\n"); err != nil {
- t.Fatal(err)
- }
- c.Close()
- }
-
- // New->Idle->Closed
- {
- c, err := net.Dial("tcp", ts.Listener.Addr().String())
- if err != nil {
- t.Fatal(err)
- }
- if _, err := io.WriteString(c, "GET / HTTP/1.1\r\nHost: foo\r\n\r\n"); err != nil {
- t.Fatal(err)
- }
- res, err := ReadResponse(bufio.NewReader(c), nil)
- if err != nil {
- t.Fatal(err)
- }
- if _, err := io.Copy(ioutil.Discard, res.Body); err != nil {
- t.Fatal(err)
- }
- c.Close()
- }
-
- want := map[int][]ConnState{
- 1: []ConnState{StateNew, StateActive, StateIdle, StateActive, StateClosed},
- 2: []ConnState{StateNew, StateActive, StateIdle, StateActive, StateClosed},
- 3: []ConnState{StateNew, StateActive, StateHijacked},
- 4: []ConnState{StateNew, StateActive, StateHijacked},
- 5: []ConnState{StateNew, StateClosed},
- 6: []ConnState{StateNew, StateActive, StateClosed},
- 7: []ConnState{StateNew, StateActive, StateIdle, StateClosed},
- }
- logString := func(m map[int][]ConnState) string {
- var b bytes.Buffer
- for id, l := range m {
- fmt.Fprintf(&b, "Conn %d: ", id)
- for _, s := range l {
- fmt.Fprintf(&b, "%s ", s)
- }
- b.WriteString("\n")
- }
- return b.String()
- }
-
- for i := 0; i < 5; i++ {
- time.Sleep(time.Duration(i) * 50 * time.Millisecond)
- mu.Lock()
- match := reflect.DeepEqual(stateLog, want)
- mu.Unlock()
- if match {
- return
- }
- }
-
- mu.Lock()
- t.Errorf("Unexpected events.\nGot log: %s\n Want: %s\n", logString(stateLog), logString(want))
- mu.Unlock()
-}
-
-func mustGet(t *testing.T, url string, headers ...string) {
- req, err := NewRequest("GET", url, nil)
- if err != nil {
- t.Fatal(err)
- }
- for len(headers) > 0 {
- req.Header.Add(headers[0], headers[1])
- headers = headers[2:]
- }
- res, err := DefaultClient.Do(req)
- if err != nil {
- t.Errorf("Error fetching %s: %v", url, err)
- return
- }
- _, err = ioutil.ReadAll(res.Body)
- defer res.Body.Close()
- if err != nil {
- t.Errorf("Error reading %s: %v", url, err)
- }
-}
-
-func TestServerKeepAlivesEnabled(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewUnstartedServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
- ts.Config.SetKeepAlivesEnabled(false)
- ts.Start()
- defer ts.Close()
- res, err := Get(ts.URL)
- if err != nil {
- t.Fatal(err)
- }
- defer res.Body.Close()
- if !res.Close {
- t.Errorf("Body.Close == false; want true")
- }
-}
-
-// golang.org/issue/7856
-func TestServerEmptyBodyRace(t *testing.T) {
- defer afterTest(t)
- var n int32
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
- atomic.AddInt32(&n, 1)
- }))
- defer ts.Close()
- var wg sync.WaitGroup
- const reqs = 20
- for i := 0; i < reqs; i++ {
- wg.Add(1)
- go func() {
- defer wg.Done()
- res, err := Get(ts.URL)
- if err != nil {
- t.Error(err)
- return
- }
- defer res.Body.Close()
- _, err = io.Copy(ioutil.Discard, res.Body)
- if err != nil {
- t.Error(err)
- return
- }
- }()
- }
- wg.Wait()
- if got := atomic.LoadInt32(&n); got != reqs {
- t.Errorf("handler ran %d times; want %d", got, reqs)
- }
-}
-
-func TestServerConnStateNew(t *testing.T) {
- sawNew := false // if the test is buggy, we'll race on this variable.
- srv := &Server{
- ConnState: func(c net.Conn, state ConnState) {
- if state == StateNew {
- sawNew = true // testing that this write isn't racy
- }
- },
- Handler: HandlerFunc(func(w ResponseWriter, r *Request) {}), // irrelevant
- }
- srv.Serve(&oneConnListener{
- conn: &rwTestConn{
- Reader: strings.NewReader("GET / HTTP/1.1\r\nHost: foo\r\n\r\n"),
- Writer: ioutil.Discard,
- },
- })
- if !sawNew { // testing that this read isn't racy
- t.Error("StateNew not seen")
- }
-}
-
-func BenchmarkClientServer(b *testing.B) {
- b.ReportAllocs()
- b.StopTimer()
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, r *Request) {
- fmt.Fprintf(rw, "Hello world.\n")
- }))
- defer ts.Close()
- b.StartTimer()
-
- for i := 0; i < b.N; i++ {
- res, err := Get(ts.URL)
- if err != nil {
- b.Fatal("Get:", err)
- }
- all, err := ioutil.ReadAll(res.Body)
- res.Body.Close()
- if err != nil {
- b.Fatal("ReadAll:", err)
- }
- body := string(all)
- if body != "Hello world.\n" {
- b.Fatal("Got body:", body)
- }
- }
-
- b.StopTimer()
-}
-
-func BenchmarkClientServerParallel4(b *testing.B) {
- benchmarkClientServerParallel(b, 4)
-}
-
-func BenchmarkClientServerParallel64(b *testing.B) {
- benchmarkClientServerParallel(b, 64)
-}
-
-func benchmarkClientServerParallel(b *testing.B, parallelism int) {
- b.ReportAllocs()
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, r *Request) {
- fmt.Fprintf(rw, "Hello world.\n")
- }))
- defer ts.Close()
- b.ResetTimer()
- b.SetParallelism(parallelism)
- b.RunParallel(func(pb *testing.PB) {
- for pb.Next() {
- res, err := Get(ts.URL)
- if err != nil {
- b.Logf("Get: %v", err)
- continue
- }
- all, err := ioutil.ReadAll(res.Body)
- res.Body.Close()
- if err != nil {
- b.Logf("ReadAll: %v", err)
- continue
- }
- body := string(all)
- if body != "Hello world.\n" {
- panic("Got body: " + body)
- }
- }
- })
-}
-
-// A benchmark for profiling the server without the HTTP client code.
-// The client code runs in a subprocess.
-//
-// For use like:
-// $ go test -c
-// $ ./http.test -test.run=XX -test.bench=BenchmarkServer -test.benchtime=15s -test.cpuprofile=http.prof
-// $ go tool pprof http.test http.prof
-// (pprof) web
-func BenchmarkServer(b *testing.B) {
- b.ReportAllocs()
- // Child process mode;
- if url := os.Getenv("TEST_BENCH_SERVER_URL"); url != "" {
- n, err := strconv.Atoi(os.Getenv("TEST_BENCH_CLIENT_N"))
- if err != nil {
- panic(err)
- }
- for i := 0; i < n; i++ {
- res, err := Get(url)
- if err != nil {
- log.Panicf("Get: %v", err)
- }
- all, err := ioutil.ReadAll(res.Body)
- res.Body.Close()
- if err != nil {
- log.Panicf("ReadAll: %v", err)
- }
- body := string(all)
- if body != "Hello world.\n" {
- log.Panicf("Got body: %q", body)
- }
- }
- os.Exit(0)
- return
- }
-
- var res = []byte("Hello world.\n")
- b.StopTimer()
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, r *Request) {
- rw.Header().Set("Content-Type", "text/html; charset=utf-8")
- rw.Write(res)
- }))
- defer ts.Close()
- b.StartTimer()
-
- cmd := exec.Command(os.Args[0], "-test.run=XXXX", "-test.bench=BenchmarkServer")
- cmd.Env = append([]string{
- fmt.Sprintf("TEST_BENCH_CLIENT_N=%d", b.N),
- fmt.Sprintf("TEST_BENCH_SERVER_URL=%s", ts.URL),
- }, os.Environ()...)
- out, err := cmd.CombinedOutput()
- if err != nil {
- b.Errorf("Test failure: %v, with output: %s", err, out)
- }
-}
-
-func BenchmarkServerFakeConnNoKeepAlive(b *testing.B) {
- b.ReportAllocs()
- req := reqBytes(`GET / HTTP/1.0
-Host: golang.org
-Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17
-Accept-Encoding: gzip,deflate,sdch
-Accept-Language: en-US,en;q=0.8
-Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
-`)
- res := []byte("Hello world!\n")
-
- conn := &testConn{
- // testConn.Close will not push into the channel
- // if it's full.
- closec: make(chan bool, 1),
- }
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- rw.Header().Set("Content-Type", "text/html; charset=utf-8")
- rw.Write(res)
- })
- ln := new(oneConnListener)
- for i := 0; i < b.N; i++ {
- conn.readBuf.Reset()
- conn.writeBuf.Reset()
- conn.readBuf.Write(req)
- ln.conn = conn
- Serve(ln, handler)
- <-conn.closec
- }
-}
-
-// repeatReader reads content count times, then EOFs.
-type repeatReader struct {
- content []byte
- count int
- off int
-}
-
-func (r *repeatReader) Read(p []byte) (n int, err error) {
- if r.count <= 0 {
- return 0, io.EOF
- }
- n = copy(p, r.content[r.off:])
- r.off += n
- if r.off == len(r.content) {
- r.count--
- r.off = 0
- }
- return
-}
-
-func BenchmarkServerFakeConnWithKeepAlive(b *testing.B) {
- b.ReportAllocs()
-
- req := reqBytes(`GET / HTTP/1.1
-Host: golang.org
-Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
-User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17
-Accept-Encoding: gzip,deflate,sdch
-Accept-Language: en-US,en;q=0.8
-Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
-`)
- res := []byte("Hello world!\n")
-
- conn := &rwTestConn{
- Reader: &repeatReader{content: req, count: b.N},
- Writer: ioutil.Discard,
- closec: make(chan bool, 1),
- }
- handled := 0
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- handled++
- rw.Header().Set("Content-Type", "text/html; charset=utf-8")
- rw.Write(res)
- })
- ln := &oneConnListener{conn: conn}
- go Serve(ln, handler)
- <-conn.closec
- if b.N != handled {
- b.Errorf("b.N=%d but handled %d", b.N, handled)
- }
-}
-
-// same as above, but representing the most simple possible request
-// and handler. Notably: the handler does not call rw.Header().
-func BenchmarkServerFakeConnWithKeepAliveLite(b *testing.B) {
- b.ReportAllocs()
-
- req := reqBytes(`GET / HTTP/1.1
-Host: golang.org
-`)
- res := []byte("Hello world!\n")
-
- conn := &rwTestConn{
- Reader: &repeatReader{content: req, count: b.N},
- Writer: ioutil.Discard,
- closec: make(chan bool, 1),
- }
- handled := 0
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- handled++
- rw.Write(res)
- })
- ln := &oneConnListener{conn: conn}
- go Serve(ln, handler)
- <-conn.closec
- if b.N != handled {
- b.Errorf("b.N=%d but handled %d", b.N, handled)
- }
-}
-
-const someResponse = "<html>some response</html>"
-
-// A Response that's just no bigger than 2KB, the buffer-before-chunking threshold.
-var response = bytes.Repeat([]byte(someResponse), 2<<10/len(someResponse))
-
-// Both Content-Type and Content-Length set. Should be no buffering.
-func BenchmarkServerHandlerTypeLen(b *testing.B) {
- benchmarkHandler(b, HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Content-Type", "text/html")
- w.Header().Set("Content-Length", strconv.Itoa(len(response)))
- w.Write(response)
- }))
-}
-
-// A Content-Type is set, but no length. No sniffing, but will count the Content-Length.
-func BenchmarkServerHandlerNoLen(b *testing.B) {
- benchmarkHandler(b, HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Content-Type", "text/html")
- w.Write(response)
- }))
-}
-
-// A Content-Length is set, but the Content-Type will be sniffed.
-func BenchmarkServerHandlerNoType(b *testing.B) {
- benchmarkHandler(b, HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Content-Length", strconv.Itoa(len(response)))
- w.Write(response)
- }))
-}
-
-// Neither a Content-Type or Content-Length, so sniffed and counted.
-func BenchmarkServerHandlerNoHeader(b *testing.B) {
- benchmarkHandler(b, HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Write(response)
- }))
-}
-
-func benchmarkHandler(b *testing.B, h Handler) {
- b.ReportAllocs()
- req := reqBytes(`GET / HTTP/1.1
-Host: golang.org
-`)
- conn := &rwTestConn{
- Reader: &repeatReader{content: req, count: b.N},
- Writer: ioutil.Discard,
- closec: make(chan bool, 1),
- }
- handled := 0
- handler := HandlerFunc(func(rw ResponseWriter, r *Request) {
- handled++
- h.ServeHTTP(rw, r)
- })
- ln := &oneConnListener{conn: conn}
- go Serve(ln, handler)
- <-conn.closec
- if b.N != handled {
- b.Errorf("b.N=%d but handled %d", b.N, handled)
- }
-}
-
-func BenchmarkServerHijack(b *testing.B) {
- b.ReportAllocs()
- req := reqBytes(`GET / HTTP/1.1
-Host: golang.org
-`)
- h := HandlerFunc(func(w ResponseWriter, r *Request) {
- conn, _, err := w.(Hijacker).Hijack()
- if err != nil {
- panic(err)
- }
- conn.Close()
- })
- conn := &rwTestConn{
- Writer: ioutil.Discard,
- closec: make(chan bool, 1),
- }
- ln := &oneConnListener{conn: conn}
- for i := 0; i < b.N; i++ {
- conn.Reader = bytes.NewReader(req)
- ln.conn = conn
- Serve(ln, h)
- <-conn.closec
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-30 10:50:14 +0000