mirror of https://github.com/XTLS/Xray-core
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package burst
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import (
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"context"
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"io"
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"net/http"
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"time"
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"github.com/xtls/xray-core/common/net"
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"github.com/xtls/xray-core/features/routing"
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"github.com/xtls/xray-core/transport/internet/tagged"
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)
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type pingClient struct {
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destination string
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httpClient *http.Client
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}
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func newPingClient(ctx context.Context, dispatcher routing.Dispatcher, destination string, timeout time.Duration, handler string) *pingClient {
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return &pingClient{
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destination: destination,
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httpClient: newHTTPClient(ctx, dispatcher, handler, timeout),
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}
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}
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func newDirectPingClient(destination string, timeout time.Duration) *pingClient {
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return &pingClient{
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destination: destination,
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httpClient: &http.Client{Timeout: timeout},
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}
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}
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func newHTTPClient(ctxv context.Context, dispatcher routing.Dispatcher, handler string, timeout time.Duration) *http.Client {
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tr := &http.Transport{
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DisableKeepAlives: true,
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DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
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dest, err := net.ParseDestination(network + ":" + addr)
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if err != nil {
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return nil, err
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}
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return tagged.Dialer(ctxv, dispatcher, dest, handler)
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},
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}
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return &http.Client{
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Transport: tr,
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Timeout: timeout,
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// don't follow redirect
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CheckRedirect: func(req *http.Request, via []*http.Request) error {
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return http.ErrUseLastResponse
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},
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}
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}
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// MeasureDelay returns the delay time of the request to dest
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func (s *pingClient) MeasureDelay(httpMethod string) (time.Duration, error) {
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if s.httpClient == nil {
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panic("pingClient not initialized")
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}
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req, err := http.NewRequest(httpMethod, s.destination, nil)
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if err != nil {
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return rttFailed, err
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}
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start := time.Now()
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resp, err := s.httpClient.Do(req)
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if err != nil {
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return rttFailed, err
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}
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if httpMethod == http.MethodGet {
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_, err = io.Copy(io.Discard, resp.Body)
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if err != nil {
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return rttFailed, err
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}
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}
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resp.Body.Close()
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return time.Since(start), nil
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}
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