http: remove finalURL from Client.Get; move to Response

This CL:

-- removes Response.RequestMethod string
-- adds Response.Request *Request
-- removes the finalURL result parameter from client.Get()
-- adds a gofix rule for callers of http.Get which assign
   the final url to the blank identifier; warning otherwise

Caller who did:

res, finalURL, err := http.Get(...)

now need to do:

res, err := http.Get(...)
if err != nil {
   ...
}
finalURL := res.Request.URL.String()

R=rsc
CC=golang-dev
https://golang.org/cl/4535056

doc/codelab/wiki/get.go

@@ -37,7 +37,7 @@ func main() {
 		b := strings.NewReader(*post)
 		r, err = http.Post(url, "application/x-www-form-urlencoded", b)
 	} else {
-		r, _, err = http.Get(url)
+		r, err = http.Get(url)
 	}
 	if err != nil {
 		log.Fatal(err)

misc/dashboard/builder/http.go

@@ -35,7 +35,7 @@ func dash(meth, cmd string, resp interface{}, args param) os.Error {
 			}
 			cmd += "?" + http.EncodeQuery(m)
 		}
-		r, _, err = http.Get(cmd)
+		r, err = http.Get(cmd)
 	case "POST":
 		r, err = http.PostForm(cmd, args)
 	default:

src/cmd/godoc/main.go

@@ -176,7 +176,7 @@ func remoteSearch(query string) (res *http.Response, err os.Error) {
 	// remote search
 	for _, addr := range addrs {
 		url := "http://" + addr + search
-		res, _, err = http.Get(url)
+		res, err = http.Get(url)
 		if err == nil && res.StatusCode == http.StatusOK {
 			break
 		}

src/cmd/gofix/Makefile

@@ -10,6 +10,7 @@ GOFILES=\
 	netdial.go\
 	main.go\
 	osopen.go\
+	httpfinalurl.go\
 	httpserver.go\
 	procattr.go\
 	reflect.go\

src/cmd/gofix/httpfinalurl.go

@@ -0,0 +1,56 @@
+// Copyright 2011 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.
+
+package main
+
+import (
+	"go/ast"
+)
+
+var httpFinalURLFix = fix{
+	"httpfinalurl",
+	httpfinalurl,
+	`Adapt http Get calls to not have a finalURL result parameter.
+
+	http://codereview.appspot.com/4535056/
+`,
+}
+
+func init() {
+	register(httpFinalURLFix)
+}
+
+func httpfinalurl(f *ast.File) bool {
+	if !imports(f, "http") {
+		return false
+	}
+
+	fixed := false
+	walk(f, func(n interface{}) {
+		// Fix up calls to http.Get.
+		//
+		// If they have blank identifiers, remove them:
+		//    resp, _, err := http.Get(url)
+		// -> resp, err := http.Get(url)
+		//
+		// But if they're using the finalURL parameter, warn:
+		//    resp, finalURL, err := http.Get(url)
+		as, ok := n.(*ast.AssignStmt)
+		if !ok || len(as.Lhs) != 3 || len(as.Rhs) != 1 {
+			return
+		}
+
+		if !isCall(as.Rhs[0], "http", "Get") {
+			return
+		}
+
+		if isBlank(as.Lhs[1]) {
+			as.Lhs = []ast.Expr{as.Lhs[0], as.Lhs[2]}
+			fixed = true
+		} else {
+			warn(as.Pos(), "call to http.Get records final URL")
+		}
+	})
+	return fixed
+}

src/cmd/gofix/httpfinalurl_test.go

@@ -0,0 +1,37 @@
+// Copyright 2011 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.
+
+package main
+
+func init() {
+	addTestCases(httpfinalurlTests)
+}
+
+var httpfinalurlTests = []testCase{
+	{
+		Name: "finalurl.0",
+		In: `package main
+
+import (
+	"http"
+)
+
+func f() {
+	resp, _, err := http.Get("http://www.google.com/")
+	_, _ = resp, err
+}
+`,
+		Out: `package main
+
+import (
+	"http"
+)
+
+func f() {
+	resp, err := http.Get("http://www.google.com/")
+	_, _ = resp, err
+}
+`,
+	},
+}

src/pkg/http/client.go

@@ -126,13 +126,10 @@ func shouldRedirect(statusCode int) bool {
 //    303 (See Other)
 //    307 (Temporary Redirect)
 //
-// finalURL is the URL from which the response was fetched -- identical to the
-// input URL unless redirects were followed.
-//
 // Caller should close r.Body when done reading from it.
 //
 // Get is a convenience wrapper around DefaultClient.Get.
-func Get(url string) (r *Response, finalURL string, err os.Error) {
+func Get(url string) (r *Response, err os.Error) {
 	return DefaultClient.Get(url)
 }
 
@@ -145,11 +142,8 @@ func Get(url string) (r *Response, finalURL string, err os.Error) {
 //    303 (See Other)
 //    307 (Temporary Redirect)
 //
-// finalURL is the URL from which the response was fetched -- identical
-// to the input URL unless redirects were followed.
-//
 // Caller should close r.Body when done reading from it.
-func (c *Client) Get(url string) (r *Response, finalURL string, err os.Error) {
+func (c *Client) Get(url string) (r *Response, err os.Error) {
 	// TODO: if/when we add cookie support, the redirected request shouldn't
 	// necessarily supply the same cookies as the original.
 	var base *URL
@@ -198,7 +192,6 @@ func (c *Client) Get(url string) (r *Response, finalURL string, err os.Error) {
 			via = append(via, &req)
 			continue
 		}
-		finalURL = url
 		return
 	}
 

src/pkg/http/client_test.go

@@ -26,7 +26,7 @@ func TestClient(t *testing.T) {
 	ts := httptest.NewServer(robotsTxtHandler)
 	defer ts.Close()
 
-	r, _, err := Get(ts.URL)
+	r, err := Get(ts.URL)
 	var b []byte
 	if err == nil {
 		b, err = ioutil.ReadAll(r.Body)
@@ -96,7 +96,7 @@ func TestRedirects(t *testing.T) {
 	defer ts.Close()
 
 	c := &Client{}
-	_, _, err := c.Get(ts.URL)
+	_, 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, expected error %q, got %q", e, g)
 	}
@@ -107,7 +107,8 @@ func TestRedirects(t *testing.T) {
 		lastVia = via
 		return checkErr
 	}}
-	_, finalUrl, err := c.Get(ts.URL)
+	res, err := c.Get(ts.URL)
+	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)
 	}
@@ -119,7 +120,8 @@ func TestRedirects(t *testing.T) {
 	}
 
 	checkErr = os.NewError("no redirects allowed")
-	_, finalUrl, err = c.Get(ts.URL)
+	res, err = c.Get(ts.URL)
+	finalUrl = res.Request.URL.String()
 	if e, g := "Get /?n=1: no redirects allowed", fmt.Sprintf("%v", err); e != g {
 		t.Errorf("with redirects forbidden, expected error %q, got %q", e, g)
 	}

src/pkg/http/fs_test.go

@@ -96,7 +96,7 @@ func TestServeFileContentType(t *testing.T) {
 	}))
 	defer ts.Close()
 	get := func(want string) {
-		resp, _, err := Get(ts.URL)
+		resp, err := Get(ts.URL)
 		if err != nil {
 			t.Fatal(err)
 		}

src/pkg/http/persist.go

@@ -343,7 +343,7 @@ func (cc *ClientConn) Read(req *Request) (*Response, os.Error) {
 
 // readUsing is the implementation of Read with a replaceable
 // ReadResponse-like function, used by the Transport.
-func (cc *ClientConn) readUsing(req *Request, readRes func(buf *bufio.Reader, method string) (*Response, os.Error)) (resp *Response, err os.Error) {
+func (cc *ClientConn) readUsing(req *Request, readRes func(*bufio.Reader, *Request) (*Response, os.Error)) (resp *Response, err os.Error) {
 	// Retrieve the pipeline ID of this request/response pair
 	cc.lk.Lock()
 	id, ok := cc.pipereq[req]
@@ -386,7 +386,7 @@ func (cc *ClientConn) readUsing(req *Request, readRes func(buf *bufio.Reader, me
 		}
 	}
 
-	resp, err = readRes(r, req.Method)
+	resp, err = readRes(r, req)
 	cc.lk.Lock()
 	defer cc.lk.Unlock()
 	if err != nil {

src/pkg/http/request_test.go

@@ -162,11 +162,12 @@ func TestRedirect(t *testing.T) {
 	defer ts.Close()
 
 	var end = regexp.MustCompile("/foo/$")
-	r, url, err := Get(ts.URL)
+	r, err := Get(ts.URL)
 	if err != nil {
 		t.Fatal(err)
 	}
 	r.Body.Close()
+	url := r.Request.URL.String()
 	if r.StatusCode != 200 || !end.MatchString(url) {
 		t.Fatalf("Get got status %d at %q, want 200 matching /foo/$", r.StatusCode, url)
 	}

src/pkg/http/response.go

@@ -30,10 +30,6 @@ type Response struct {
 	ProtoMajor int    // e.g. 1
 	ProtoMinor int    // e.g. 0
 
-	// RequestMethod records the method used in the HTTP request.
-	// Header fields such as Content-Length have method-specific meaning.
-	RequestMethod string // e.g. "HEAD", "CONNECT", "GET", etc.
-
 	// Header maps header keys to values.  If the response had multiple
 	// headers with the same key, they will be concatenated, with comma
 	// delimiters.  (Section 4.2 of RFC 2616 requires that multiple headers
@@ -68,19 +64,26 @@ type Response struct {
 	// Trailer maps trailer keys to values, in the same
 	// format as the header.
 	Trailer Header
+
+	// The Request that was sent to obtain this Response.
+	// Request's Body is nil (having already been consumed).
+	// This is only populated for Client requests.
+	Request *Request
 }
 
-// ReadResponse reads and returns an HTTP response from r.  The RequestMethod
+// ReadResponse reads and returns an HTTP response from r.  The
-// parameter specifies the method used in the corresponding request (e.g.,
+// req parameter specifies the Request that corresponds to
-// "GET", "HEAD").  Clients must call resp.Body.Close when finished reading
+// this Response.  Clients must call resp.Body.Close when finished
-// resp.Body.  After that call, clients can inspect resp.Trailer to find
+// reading resp.Body.  After that call, clients can inspect
-// key/value pairs included in the response trailer.
+// resp.Trailer to find key/value pairs included in the response
-func ReadResponse(r *bufio.Reader, requestMethod string) (resp *Response, err os.Error) {
+// trailer.
+func ReadResponse(r *bufio.Reader, req *Request) (resp *Response, err os.Error) {
 
 	tp := textproto.NewReader(r)
 	resp = new(Response)
 
-	resp.RequestMethod = strings.ToUpper(requestMethod)
+	resp.Request = req
+	resp.Request.Method = strings.ToUpper(resp.Request.Method)
 
 	// Parse the first line of the response.
 	line, err := tp.ReadLine()
@@ -164,7 +167,9 @@ func (r *Response) ProtoAtLeast(major, minor int) bool {
 func (resp *Response) Write(w io.Writer) os.Error {
 
 	// RequestMethod should be upper-case
-	resp.RequestMethod = strings.ToUpper(resp.RequestMethod)
+	if resp.Request != nil {
+		resp.Request.Method = strings.ToUpper(resp.Request.Method)
+	}
 
 	// Status line
 	text := resp.Status

src/pkg/http/response_test.go

@@ -23,6 +23,10 @@ type respTest struct {
 	Body string
 }
 
+func dummyReq(method string) *Request {
+	return &Request{Method: method}
+}
+
 var respTests = []respTest{
 	// Unchunked response without Content-Length.
 	{
@@ -37,7 +41,7 @@ var respTests = []respTest{
 			Proto:      "HTTP/1.0",
 			ProtoMajor: 1,
 			ProtoMinor: 0,
-			RequestMethod: "GET",
+			Request:    dummyReq("GET"),
 			Header: Header{
 				"Connection": {"close"}, // TODO(rsc): Delete?
 			},
@@ -61,7 +65,7 @@ var respTests = []respTest{
 			Proto:         "HTTP/1.1",
 			ProtoMajor:    1,
 			ProtoMinor:    1,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Close:         true,
 			ContentLength: -1,
 		},
@@ -81,7 +85,7 @@ var respTests = []respTest{
 			Proto:         "HTTP/1.1",
 			ProtoMajor:    1,
 			ProtoMinor:    1,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Close:         false,
 			ContentLength: 0,
 		},
@@ -103,7 +107,7 @@ var respTests = []respTest{
 			Proto:      "HTTP/1.0",
 			ProtoMajor: 1,
 			ProtoMinor: 0,
-			RequestMethod: "GET",
+			Request:    dummyReq("GET"),
 			Header: Header{
 				"Connection":     {"close"}, // TODO(rsc): Delete?
 				"Content-Length": {"10"},    // TODO(rsc): Delete?
@@ -133,7 +137,7 @@ var respTests = []respTest{
 			Proto:            "HTTP/1.0",
 			ProtoMajor:       1,
 			ProtoMinor:       0,
-			RequestMethod:    "GET",
+			Request:          dummyReq("GET"),
 			Header:           Header{},
 			Close:            true,
 			ContentLength:    -1,
@@ -160,7 +164,7 @@ var respTests = []respTest{
 			Proto:            "HTTP/1.0",
 			ProtoMajor:       1,
 			ProtoMinor:       0,
-			RequestMethod:    "GET",
+			Request:          dummyReq("GET"),
 			Header:           Header{},
 			Close:            true,
 			ContentLength:    -1, // TODO(rsc): Fix?
@@ -183,7 +187,7 @@ var respTests = []respTest{
 			Proto:         "HTTP/1.0",
 			ProtoMajor:    1,
 			ProtoMinor:    0,
-			RequestMethod: "HEAD",
+			Request:       dummyReq("HEAD"),
 			Header:        Header{},
 			Close:         true,
 			ContentLength: 0,
@@ -204,7 +208,7 @@ var respTests = []respTest{
 			Proto:      "HTTP/1.1",
 			ProtoMajor: 1,
 			ProtoMinor: 1,
-			RequestMethod: "GET",
+			Request:    dummyReq("GET"),
 			Header: Header{
 				"Content-Length": {"0"},
 			},
@@ -225,7 +229,7 @@ var respTests = []respTest{
 			Proto:         "HTTP/1.0",
 			ProtoMajor:    1,
 			ProtoMinor:    0,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Header:        Header{},
 			Close:         true,
 			ContentLength: -1,
@@ -244,7 +248,7 @@ var respTests = []respTest{
 			Proto:         "HTTP/1.0",
 			ProtoMajor:    1,
 			ProtoMinor:    0,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Header:        Header{},
 			Close:         true,
 			ContentLength: -1,
@@ -259,7 +263,7 @@ func TestReadResponse(t *testing.T) {
 		tt := &respTests[i]
 		var braw bytes.Buffer
 		braw.WriteString(tt.Raw)
-		resp, err := ReadResponse(bufio.NewReader(&braw), tt.Resp.RequestMethod)
+		resp, err := ReadResponse(bufio.NewReader(&braw), tt.Resp.Request)
 		if err != nil {
 			t.Errorf("#%d: %s", i, err)
 			continue
@@ -340,7 +344,7 @@ func TestReadResponseCloseInMiddle(t *testing.T) {
 		buf.WriteString("Next Request Here")
 
 		bufr := bufio.NewReader(&buf)
-		resp, err := ReadResponse(bufr, "GET")
+		resp, err := ReadResponse(bufr, dummyReq("GET"))
 		checkErr(err, "ReadResponse")
 		expectedLength := int64(-1)
 		if !test.chunked {

src/pkg/http/responsewrite_test.go

@@ -22,7 +22,7 @@ var respWriteTests = []respWriteTest{
 			StatusCode:    503,
 			ProtoMajor:    1,
 			ProtoMinor:    0,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Header:        Header{},
 			Body:          ioutil.NopCloser(bytes.NewBufferString("abcdef")),
 			ContentLength: 6,
@@ -38,7 +38,7 @@ var respWriteTests = []respWriteTest{
 			StatusCode:    200,
 			ProtoMajor:    1,
 			ProtoMinor:    0,
-			RequestMethod: "GET",
+			Request:       dummyReq("GET"),
 			Header:        Header{},
 			Body:          ioutil.NopCloser(bytes.NewBufferString("abcdef")),
 			ContentLength: -1,
@@ -53,7 +53,7 @@ var respWriteTests = []respWriteTest{
 			StatusCode:       200,
 			ProtoMajor:       1,
 			ProtoMinor:       1,
-			RequestMethod:    "GET",
+			Request:          dummyReq("GET"),
 			Header:           Header{},
 			Body:             ioutil.NopCloser(bytes.NewBufferString("abcdef")),
 			ContentLength:    6,
@@ -74,7 +74,7 @@ var respWriteTests = []respWriteTest{
 			StatusCode: 204,
 			ProtoMajor: 1,
 			ProtoMinor: 1,
-			RequestMethod: "GET",
+			Request:    dummyReq("GET"),
 			Header: Header{
 				"Foo": []string{" Bar\nBaz "},
 			},

src/pkg/http/reverseproxy_test.go

@@ -33,7 +33,7 @@ func TestReverseProxy(t *testing.T) {
 	frontend := httptest.NewServer(proxyHandler)
 	defer frontend.Close()
 
-	res, _, err := Get(frontend.URL)
+	res, err := Get(frontend.URL)
 	if err != nil {
 		t.Fatalf("Get: %v", err)
 	}

src/pkg/http/serve_test.go

@@ -252,7 +252,7 @@ func TestServerTimeouts(t *testing.T) {
 	// Hit the HTTP server successfully.
 	tr := &Transport{DisableKeepAlives: true} // they interfere with this test
 	c := &Client{Transport: tr}
-	r, _, err := c.Get(url)
+	r, err := c.Get(url)
 	if err != nil {
 		t.Fatalf("http Get #1: %v", err)
 	}
@@ -282,7 +282,7 @@ func TestServerTimeouts(t *testing.T) {
 	// 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(url)
+	r, err = Get(url)
 	if err != nil {
 		t.Fatalf("http Get #2: %v", err)
 	}
@@ -323,7 +323,7 @@ func TestIdentityResponse(t *testing.T) {
 	// responses.
 	for _, te := range []string{"", "identity"} {
 		url := ts.URL + "/?te=" + te
-		res, _, err := Get(url)
+		res, err := Get(url)
 		if err != nil {
 			t.Fatalf("error with Get of %s: %v", url, err)
 		}
@@ -342,7 +342,7 @@ func TestIdentityResponse(t *testing.T) {
 
 	// Verify that ErrContentLength is returned
 	url := ts.URL + "/?overwrite=1"
-	_, _, err := Get(url)
+	_, err := Get(url)
 	if err != nil {
 		t.Fatalf("error with Get of %s: %v", url, err)
 	}
@@ -389,7 +389,7 @@ func TestServeHTTP10Close(t *testing.T) {
 	}
 
 	r := bufio.NewReader(conn)
-	_, err = ReadResponse(r, "GET")
+	_, err = ReadResponse(r, &Request{Method: "GET"})
 	if err != nil {
 		t.Fatal("ReadResponse error:", err)
 	}
@@ -417,7 +417,7 @@ func TestSetsRemoteAddr(t *testing.T) {
 	}))
 	defer ts.Close()
 
-	res, _, err := Get(ts.URL)
+	res, err := Get(ts.URL)
 	if err != nil {
 		t.Fatalf("Get error: %v", err)
 	}
@@ -438,7 +438,7 @@ func TestChunkedResponseHeaders(t *testing.T) {
 	}))
 	defer ts.Close()
 
-	res, _, err := Get(ts.URL)
+	res, err := Get(ts.URL)
 	if err != nil {
 		t.Fatalf("Get error: %v", err)
 	}
@@ -465,7 +465,7 @@ func Test304Responses(t *testing.T) {
 		}
 	}))
 	defer ts.Close()
-	res, _, err := Get(ts.URL)
+	res, err := Get(ts.URL)
 	if err != nil {
 		t.Error(err)
 	}
@@ -516,7 +516,7 @@ func TestTLSServer(t *testing.T) {
 	if !strings.HasPrefix(ts.URL, "https://") {
 		t.Fatalf("expected test TLS server to start with https://, got %q", ts.URL)
 	}
-	res, _, err := Get(ts.URL)
+	res, err := Get(ts.URL)
 	if err != nil {
 		t.Error(err)
 	}
@@ -657,7 +657,7 @@ func TestTimeoutHandler(t *testing.T) {
 
 	// Succeed without timing out:
 	sendHi <- true
-	res, _, err := Get(ts.URL)
+	res, err := Get(ts.URL)
 	if err != nil {
 		t.Error(err)
 	}
@@ -674,7 +674,7 @@ func TestTimeoutHandler(t *testing.T) {
 
 	// Times out:
 	timeout <- 1
-	res, _, err = Get(ts.URL)
+	res, err = Get(ts.URL)
 	if err != nil {
 		t.Error(err)
 	}

src/pkg/http/transfer.go

@@ -45,7 +45,7 @@ func newTransferWriter(r interface{}) (t *transferWriter, err os.Error) {
 		t.TransferEncoding = rr.TransferEncoding
 		t.Trailer = rr.Trailer
 		atLeastHTTP11 = rr.ProtoAtLeast(1, 1)
-		t.ResponseToHEAD = noBodyExpected(rr.RequestMethod)
+		t.ResponseToHEAD = noBodyExpected(rr.Request.Method)
 	}
 
 	// Sanitize Body,ContentLength,TransferEncoding
@@ -196,7 +196,7 @@ func readTransfer(msg interface{}, r *bufio.Reader) (err os.Error) {
 	case *Response:
 		t.Header = rr.Header
 		t.StatusCode = rr.StatusCode
-		t.RequestMethod = rr.RequestMethod
+		t.RequestMethod = rr.Request.Method
 		t.ProtoMajor = rr.ProtoMajor
 		t.ProtoMinor = rr.ProtoMinor
 		t.Close = shouldClose(t.ProtoMajor, t.ProtoMinor, t.Header)

src/pkg/http/transport.go

@@ -249,18 +249,22 @@ func (t *Transport) getConn(cm *connectMethod) (*persistConn, os.Error) {
 			}
 		}
 	case cm.targetScheme == "https":
-		fmt.Fprintf(conn, "CONNECT %s HTTP/1.1\r\n", cm.targetAddr)
+		connectReq := &Request{
-		fmt.Fprintf(conn, "Host: %s\r\n", cm.targetAddr)
+			Method: "CONNECT",
-		if pa != "" {
+			RawURL: cm.targetAddr,
-			fmt.Fprintf(conn, "Proxy-Authorization: %s\r\n", pa)
+			Host:   cm.targetAddr,
+			Header: make(Header),
 		}
-		fmt.Fprintf(conn, "\r\n")
+		if pa != "" {
+			connectReq.Header.Set("Proxy-Authorization", pa)
+		}
+		connectReq.Write(conn)
 
 		// Read response.
 		// Okay to use and discard buffered reader here, because
 		// TLS server will not speak until spoken to.
 		br := bufio.NewReader(conn)
-		resp, err := ReadResponse(br, "CONNECT")
+		resp, err := ReadResponse(br, connectReq)
 		if err != nil {
 			conn.Close()
 			return nil, err
@@ -447,8 +451,8 @@ func (pc *persistConn) readLoop() {
 		}
 
 		rc := <-pc.reqch
-		resp, err := pc.cc.readUsing(rc.req, func(buf *bufio.Reader, reqMethod string) (*Response, os.Error) {
+		resp, err := pc.cc.readUsing(rc.req, func(buf *bufio.Reader, forReq *Request) (*Response, os.Error) {
-			resp, err := ReadResponse(buf, reqMethod)
+			resp, err := ReadResponse(buf, forReq)
 			if err != nil || resp.ContentLength == 0 {
 				return resp, err
 			}

src/pkg/http/transport_test.go

@@ -43,7 +43,7 @@ func TestTransportKeepAlives(t *testing.T) {
 		c := &Client{Transport: tr}
 
 		fetch := func(n int) string {
-			res, _, err := c.Get(ts.URL)
+			res, err := c.Get(ts.URL)
 			if err != nil {
 				t.Fatalf("error in disableKeepAlive=%v, req #%d, GET: %v", disableKeepAlive, n, err)
 			}
@@ -160,7 +160,7 @@ func TestTransportIdleCacheKeys(t *testing.T) {
 		t.Errorf("After CloseIdleConnections expected %d idle conn cache keys; got %d", e, g)
 	}
 
-	resp, _, err := c.Get(ts.URL)
+	resp, err := c.Get(ts.URL)
 	if err != nil {
 		t.Error(err)
 	}
@@ -201,7 +201,7 @@ func TestTransportMaxPerHostIdleConns(t *testing.T) {
 	// Their responses will hang until we we write to resch, though.
 	donech := make(chan bool)
 	doReq := func() {
-		resp, _, err := c.Get(ts.URL)
+		resp, err := c.Get(ts.URL)
 		if err != nil {
 			t.Error(err)
 		}
@@ -266,7 +266,7 @@ func TestTransportServerClosingUnexpectedly(t *testing.T) {
 		}
 		for retries >= 0 {
 			retries--
-			res, _, err := c.Get(ts.URL)
+			res, err := c.Get(ts.URL)
 			if err != nil {
 				condFatalf("error in req #%d, GET: %v", n, err)
 				continue
@@ -420,7 +420,7 @@ func TestTransportGzip(t *testing.T) {
 		c := &Client{Transport: &Transport{}}
 
 		// First fetch something large, but only read some of it.
-		res, _, err := c.Get(ts.URL + "?body=large&chunked=" + chunked)
+		res, err := c.Get(ts.URL + "?body=large&chunked=" + chunked)
 		if err != nil {
 			t.Fatalf("large get: %v", err)
 		}
@@ -440,7 +440,7 @@ func TestTransportGzip(t *testing.T) {
 		}
 
 		// Then something small.
-		res, _, err = c.Get(ts.URL + "?chunked=" + chunked)
+		res, err = c.Get(ts.URL + "?chunked=" + chunked)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -490,7 +490,7 @@ func TestTransportGzipRecursive(t *testing.T) {
 	defer ts.Close()
 
 	c := &Client{Transport: &Transport{}}
-	res, _, err := c.Get(ts.URL)
+	res, err := c.Get(ts.URL)
 	if err != nil {
 		t.Fatal(err)
 	}

src/pkg/rpc/client.go

@@ -216,7 +216,7 @@ func DialHTTPPath(network, address, path string) (*Client, os.Error) {
 
 	// Require successful HTTP response
 	// before switching to RPC protocol.
-	resp, err := http.ReadResponse(bufio.NewReader(conn), "CONNECT")
+	resp, err := http.ReadResponse(bufio.NewReader(conn), &http.Request{Method: "CONNECT"})
 	if err == nil && resp.Status == connected {
 		return NewClient(conn), nil
 	}

src/pkg/websocket/client.go

@@ -235,7 +235,7 @@ func handshake(resourceName, host, origin, location, protocol string, br *bufio.
 	}
 
 	// Step 28-29, 32-40. read response from server.
-	resp, err := http.ReadResponse(br, "GET")
+	resp, err := http.ReadResponse(br, &http.Request{Method: "GET"})
 	if err != nil {
 		return err
 	}
@@ -297,7 +297,7 @@ func draft75handshake(resourceName, host, origin, location, protocol string, br
 	}
 	bw.WriteString("\r\n")
 	bw.Flush()
-	resp, err := http.ReadResponse(br, "GET")
+	resp, err := http.ReadResponse(br, &http.Request{Method: "GET"})
 	if err != nil {
 		return
 	}

src/pkg/websocket/websocket_test.go

@@ -150,7 +150,7 @@ func TestHTTP(t *testing.T) {
 
 	// If the client did not send a handshake that matches the protocol
 	// specification, the server should abort the WebSocket connection.
-	_, _, err := http.Get(fmt.Sprintf("http://%s/echo", serverAddr))
+	_, err := http.Get(fmt.Sprintf("http://%s/echo", serverAddr))
 	if err == nil {
 		t.Error("Get: unexpected success")
 		return
@@ -169,7 +169,7 @@ func TestHTTP(t *testing.T) {
 func TestHTTPDraft75(t *testing.T) {
 	once.Do(startServer)
 
-	r, _, err := http.Get(fmt.Sprintf("http://%s/echoDraft75", serverAddr))
+	r, err := http.Get(fmt.Sprintf("http://%s/echoDraft75", serverAddr))
 	if err != nil {
 		t.Errorf("Get: error %#v", err)
 		return