http: consume request body before next request

Fixes #1306.

R=rsc
CC=golang-dev
https://golang.org/cl/3332043

src/pkg/http/serve_test.go

+// 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
+
+import (
+	"bytes"
+	"os"
+	"net"
+	"testing"
+)
+
+type dummyAddr string
+type oneConnListener struct {
+	conn net.Conn
+}
+
+func (l *oneConnListener) Accept() (c net.Conn, err os.Error) {
+	c = l.conn
+	if c == nil {
+		err = os.EOF
+		return
+	}
+	err = nil
+	l.conn = nil
+	return
+}
+
+func (l *oneConnListener) Close() os.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 testConn struct {
+	readBuf  bytes.Buffer
+	writeBuf bytes.Buffer
+}
+
+func (c *testConn) Read(b []byte) (int, os.Error) {
+	return c.readBuf.Read(b)
+}
+
+func (c *testConn) Write(b []byte) (int, os.Error) {
+	return c.writeBuf.Write(b)
+}
+
+func (c *testConn) Close() os.Error {
+	return nil
+}
+
+func (c *testConn) LocalAddr() net.Addr {
+	return dummyAddr("local-addr")
+}
+
+func (c *testConn) RemoteAddr() net.Addr {
+	return dummyAddr("remote-addr")
+}
+
+func (c *testConn) SetTimeout(nsec int64) os.Error {
+	return nil
+}
+
+func (c *testConn) SetReadTimeout(nsec int64) os.Error {
+	return nil
+}
+
+func (c *testConn) SetWriteTimeout(nsec int64) os.Error {
+	return nil
+}
+
+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 os.Error)
+	listener := &oneConnListener{conn}
+	handler := func(res ResponseWriter, req *Request) {
+		reqNum++
+		t.Logf("Got request #%d: %v", reqNum, req)
+		ch <- req
+	}
+
+	go func() {
+		servech <- Serve(listener, HandlerFunc(handler))
+	}()
+
+	var req *Request
+	t.Log("Waiting for first 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")
+	}
+
+	t.Log("Waiting for second request.")
+	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")
+	}
+
+	t.Log("Waiting for EOF.")
+	if serveerr := <-servech; serveerr != os.EOF {
+		t.Errorf("Serve returned %q; expected EOF", serveerr)
+	}
+}

src/pkg/http/server.go

@@ -362,6 +362,7 @@ func (w *response) finishRequest() {
 		io.WriteString(w.conn.buf, "\r\n")
 	}
 	w.conn.buf.Flush()
+	w.req.Body.Close()
 }
 
 // Flush implements the ResponseWriter.Flush method.