1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267
|
// Copyright 2016 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.
// White-box tests for transport.go (in package http instead of http_test).
package http
import (
"bytes"
"crypto/tls"
"errors"
"io"
"net"
"net/http/internal/testcert"
"strings"
"testing"
)
// Issue 15446: incorrect wrapping of errors when server closes an idle connection.
func TestTransportPersistConnReadLoopEOF(t *testing.T) {
ln := newLocalListener(t)
defer ln.Close()
connc := make(chan net.Conn, 1)
go func() {
defer close(connc)
c, err := ln.Accept()
if err != nil {
t.Error(err)
return
}
connc <- c
}()
tr := new(Transport)
req, _ := NewRequest("GET", "http://"+ln.Addr().String(), nil)
req = req.WithT(t)
treq := &transportRequest{Request: req}
cm := connectMethod{targetScheme: "http", targetAddr: ln.Addr().String()}
pc, err := tr.getConn(treq, cm)
if err != nil {
t.Fatal(err)
}
defer pc.close(errors.New("test over"))
conn := <-connc
if conn == nil {
// Already called t.Error in the accept goroutine.
return
}
conn.Close() // simulate the server hanging up on the client
_, err = pc.roundTrip(treq)
if !isNothingWrittenError(err) && !isTransportReadFromServerError(err) && err != errServerClosedIdle {
t.Errorf("roundTrip = %#v, %v; want errServerClosedIdle, transportReadFromServerError, or nothingWrittenError", err, err)
}
<-pc.closech
err = pc.closed
if !isTransportReadFromServerError(err) && err != errServerClosedIdle {
t.Errorf("pc.closed = %#v, %v; want errServerClosedIdle or transportReadFromServerError", err, err)
}
}
func isNothingWrittenError(err error) bool {
_, ok := err.(nothingWrittenError)
return ok
}
func isTransportReadFromServerError(err error) bool {
_, ok := err.(transportReadFromServerError)
return ok
}
func newLocalListener(t *testing.T) net.Listener {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
ln, err = net.Listen("tcp6", "[::1]:0")
}
if err != nil {
t.Fatal(err)
}
return ln
}
func dummyRequest(method string) *Request {
req, err := NewRequest(method, "http://fake.tld/", nil)
if err != nil {
panic(err)
}
return req
}
func dummyRequestWithBody(method string) *Request {
req, err := NewRequest(method, "http://fake.tld/", strings.NewReader("foo"))
if err != nil {
panic(err)
}
return req
}
func dummyRequestWithBodyNoGetBody(method string) *Request {
req := dummyRequestWithBody(method)
req.GetBody = nil
return req
}
// issue22091Error acts like a golang.org/x/net/http2.ErrNoCachedConn.
type issue22091Error struct{}
func (issue22091Error) IsHTTP2NoCachedConnError() {}
func (issue22091Error) Error() string { return "issue22091Error" }
func TestTransportShouldRetryRequest(t *testing.T) {
tests := []struct {
pc *persistConn
req *Request
err error
want bool
}{
0: {
pc: &persistConn{reused: false},
req: dummyRequest("POST"),
err: nothingWrittenError{},
want: false,
},
1: {
pc: &persistConn{reused: true},
req: dummyRequest("POST"),
err: nothingWrittenError{},
want: true,
},
2: {
pc: &persistConn{reused: true},
req: dummyRequest("POST"),
err: http2ErrNoCachedConn,
want: true,
},
3: {
pc: nil,
req: nil,
err: issue22091Error{}, // like an external http2ErrNoCachedConn
want: true,
},
4: {
pc: &persistConn{reused: true},
req: dummyRequest("POST"),
err: errMissingHost,
want: false,
},
5: {
pc: &persistConn{reused: true},
req: dummyRequest("POST"),
err: transportReadFromServerError{},
want: false,
},
6: {
pc: &persistConn{reused: true},
req: dummyRequest("GET"),
err: transportReadFromServerError{},
want: true,
},
7: {
pc: &persistConn{reused: true},
req: dummyRequest("GET"),
err: errServerClosedIdle,
want: true,
},
8: {
pc: &persistConn{reused: true},
req: dummyRequestWithBody("POST"),
err: nothingWrittenError{},
want: true,
},
9: {
pc: &persistConn{reused: true},
req: dummyRequestWithBodyNoGetBody("POST"),
err: nothingWrittenError{},
want: false,
},
}
for i, tt := range tests {
got := tt.pc.shouldRetryRequest(tt.req, tt.err)
if got != tt.want {
t.Errorf("%d. shouldRetryRequest = %v; want %v", i, got, tt.want)
}
}
}
type roundTripFunc func(r *Request) (*Response, error)
func (f roundTripFunc) RoundTrip(r *Request) (*Response, error) {
return f(r)
}
// Issue 25009
func TestTransportBodyAltRewind(t *testing.T) {
cert, err := tls.X509KeyPair(testcert.LocalhostCert, testcert.LocalhostKey)
if err != nil {
t.Fatal(err)
}
ln := newLocalListener(t)
defer ln.Close()
go func() {
tln := tls.NewListener(ln, &tls.Config{
NextProtos: []string{"foo"},
Certificates: []tls.Certificate{cert},
})
for i := 0; i < 2; i++ {
sc, err := tln.Accept()
if err != nil {
t.Error(err)
return
}
if err := sc.(*tls.Conn).Handshake(); err != nil {
t.Error(err)
return
}
sc.Close()
}
}()
addr := ln.Addr().String()
req, _ := NewRequest("POST", "https://example.org/", bytes.NewBufferString("request"))
roundTripped := false
tr := &Transport{
DisableKeepAlives: true,
TLSNextProto: map[string]func(string, *tls.Conn) RoundTripper{
"foo": func(authority string, c *tls.Conn) RoundTripper {
return roundTripFunc(func(r *Request) (*Response, error) {
n, _ := io.Copy(io.Discard, r.Body)
if n == 0 {
t.Error("body length is zero")
}
if roundTripped {
return &Response{
Body: NoBody,
StatusCode: 200,
}, nil
}
roundTripped = true
return nil, http2noCachedConnError{}
})
},
},
DialTLS: func(_, _ string) (net.Conn, error) {
tc, err := tls.Dial("tcp", addr, &tls.Config{
InsecureSkipVerify: true,
NextProtos: []string{"foo"},
})
if err != nil {
return nil, err
}
if err := tc.Handshake(); err != nil {
return nil, err
}
return tc, nil
},
}
c := &Client{Transport: tr}
_, err = c.Do(req)
if err != nil {
t.Error(err)
}
}
|