websocket/server_test.go

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// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package websocket
import (
"bufio"
"bytes"
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"errors"
"net"
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"net/http"
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"net/http/httptest"
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"reflect"
"strings"
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"testing"
)
var subprotocolTests = []struct {
h string
protocols []string
}{
{"", nil},
{"foo", []string{"foo"}},
{"foo,bar", []string{"foo", "bar"}},
{"foo, bar", []string{"foo", "bar"}},
{" foo, bar", []string{"foo", "bar"}},
{" foo, bar ", []string{"foo", "bar"}},
}
func TestSubprotocols(t *testing.T) {
for _, st := range subprotocolTests {
r := http.Request{Header: http.Header{"Sec-Websocket-Protocol": {st.h}}}
protocols := Subprotocols(&r)
if !reflect.DeepEqual(st.protocols, protocols) {
t.Errorf("SubProtocols(%q) returned %#v, want %#v", st.h, protocols, st.protocols)
}
}
}
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var isWebSocketUpgradeTests = []struct {
ok bool
h http.Header
}{
{false, http.Header{"Upgrade": {"websocket"}}},
{false, http.Header{"Connection": {"upgrade"}}},
{true, http.Header{"Connection": {"upgRade"}, "Upgrade": {"WebSocket"}}},
}
func TestIsWebSocketUpgrade(t *testing.T) {
for _, tt := range isWebSocketUpgradeTests {
ok := IsWebSocketUpgrade(&http.Request{Header: tt.h})
if tt.ok != ok {
t.Errorf("IsWebSocketUpgrade(%v) returned %v, want %v", tt.h, ok, tt.ok)
}
}
}
var checkSameOriginTests = []struct {
ok bool
r *http.Request
}{
{false, &http.Request{Host: "example.org", Header: map[string][]string{"Origin": {"https://other.org"}}}},
{true, &http.Request{Host: "example.org", Header: map[string][]string{"Origin": {"https://example.org"}}}},
{true, &http.Request{Host: "Example.org", Header: map[string][]string{"Origin": {"https://example.org"}}}},
}
func TestCheckSameOrigin(t *testing.T) {
for _, tt := range checkSameOriginTests {
ok := checkSameOrigin(tt.r)
if tt.ok != ok {
t.Errorf("checkSameOrigin(%+v) returned %v, want %v", tt.r, ok, tt.ok)
}
}
}
type reuseTestResponseWriter struct {
brw *bufio.ReadWriter
http.ResponseWriter
}
func (resp *reuseTestResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return fakeNetConn{strings.NewReader(""), &bytes.Buffer{}}, resp.brw, nil
}
var bufioReuseTests = []struct {
n int
reuse bool
}{
{4096, true},
{128, false},
}
func TestBufioReuse(t *testing.T) {
for i, tt := range bufioReuseTests {
br := bufio.NewReaderSize(strings.NewReader(""), tt.n)
bw := bufio.NewWriterSize(&bytes.Buffer{}, tt.n)
resp := &reuseTestResponseWriter{
brw: bufio.NewReadWriter(br, bw),
}
upgrader := Upgrader{}
c, err := upgrader.Upgrade(resp, &http.Request{
Method: http.MethodGet,
Header: http.Header{
"Upgrade": []string{"websocket"},
"Connection": []string{"upgrade"},
"Sec-Websocket-Key": []string{"dGhlIHNhbXBsZSBub25jZQ=="},
"Sec-Websocket-Version": []string{"13"},
}}, nil)
if err != nil {
t.Fatal(err)
}
if reuse := c.br == br; reuse != tt.reuse {
t.Errorf("%d: buffered reader reuse=%v, want %v", i, reuse, tt.reuse)
}
writeBuf := bufioWriterBuffer(c.NetConn(), bw)
if reuse := &c.writeBuf[0] == &writeBuf[0]; reuse != tt.reuse {
t.Errorf("%d: write buffer reuse=%v, want %v", i, reuse, tt.reuse)
}
}
}
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func TestHijack_NotSupported(t *testing.T) {
t.Parallel()
req := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
req.Header.Set("Upgrade", "websocket")
req.Header.Set("Connection", "upgrade")
req.Header.Set("Sec-Websocket-Key", "dGhlIHNhbXBsZSBub25jZQ==")
req.Header.Set("Sec-Websocket-Version", "13")
recorder := httptest.NewRecorder()
upgrader := Upgrader{}
_, err := upgrader.Upgrade(recorder, req, nil)
if want := (HandshakeError{}); !errors.As(err, &want) || recorder.Code != http.StatusInternalServerError {
t.Errorf("want %T and status_code=%d", want, http.StatusInternalServerError)
t.Fatalf("got err=%T and status_code=%d", err, recorder.Code)
}
}