cloudflared-mirror/connection/connection_test.go

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package connection
import (
"fmt"
"io"
"net/http"
"net/url"
"testing"
"time"
"github.com/gobwas/ws/wsutil"
"github.com/rs/zerolog"
"github.com/stretchr/testify/assert"
)
const (
largeFileSize = 2 * 1024 * 1024
)
var (
testConfig = &Config{
OriginClient: &mockOriginClient{},
GracePeriod: time.Millisecond * 100,
}
log = zerolog.Nop()
testOriginURL = &url.URL{
Scheme: "https",
Host: "connectiontest.argotunnel.com",
}
testObserver = NewObserver(&log, &log, false)
testLargeResp = make([]byte, largeFileSize)
)
type testRequest struct {
name string
endpoint string
expectedStatus int
expectedBody []byte
isProxyError bool
}
type mockOriginClient struct {
}
func (moc *mockOriginClient) Proxy(w ResponseWriter, r *http.Request, isWebsocket bool) error {
if isWebsocket {
return wsEndpoint(w, r)
}
switch r.URL.Path {
case "/ok":
originRespEndpoint(w, http.StatusOK, []byte(http.StatusText(http.StatusOK)))
case "/large_file":
originRespEndpoint(w, http.StatusOK, testLargeResp)
case "/400":
originRespEndpoint(w, http.StatusBadRequest, []byte(http.StatusText(http.StatusBadRequest)))
case "/500":
originRespEndpoint(w, http.StatusInternalServerError, []byte(http.StatusText(http.StatusInternalServerError)))
case "/error":
return fmt.Errorf("Failed to proxy to origin")
default:
originRespEndpoint(w, http.StatusNotFound, []byte("page not found"))
}
return nil
}
type nowriter struct {
io.Reader
}
func (nowriter) Write(p []byte) (int, error) {
return 0, fmt.Errorf("Writer not implemented")
}
func wsEndpoint(w ResponseWriter, r *http.Request) error {
resp := &http.Response{
StatusCode: http.StatusSwitchingProtocols,
}
_ = w.WriteRespHeaders(resp)
clientReader := nowriter{r.Body}
go func() {
for {
data, err := wsutil.ReadClientText(clientReader)
if err != nil {
return
}
if err := wsutil.WriteServerText(w, data); err != nil {
return
}
}
}()
<-r.Context().Done()
return nil
}
func originRespEndpoint(w ResponseWriter, status int, data []byte) {
resp := &http.Response{
StatusCode: status,
}
_ = w.WriteRespHeaders(resp)
_, _ = w.Write(data)
}
type mockConnectedFuse struct{}
func (mcf mockConnectedFuse) Connected() {}
func (mcf mockConnectedFuse) IsConnected() bool {
return true
}
func TestIsEventStream(t *testing.T) {
tests := []struct {
headers http.Header
isEventStream bool
}{
{
headers: newHeader("Content-Type", "text/event-stream"),
isEventStream: true,
},
{
headers: newHeader("content-type", "text/event-stream"),
isEventStream: true,
},
{
headers: newHeader("Content-Type", "text/event-stream; charset=utf-8"),
isEventStream: true,
},
{
headers: newHeader("Content-Type", "application/json"),
isEventStream: false,
},
{
headers: http.Header{},
isEventStream: false,
},
}
for _, test := range tests {
assert.Equal(t, test.isEventStream, IsServerSentEvent(test.headers))
}
}
func newHeader(key, value string) http.Header {
header := http.Header{}
header.Add(key, value)
return header
}