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* v5: Health Check & LeastLoad Strategy (rebased from 2c5a71490368500a982018a74a6d519c7e121816) Some changes will be necessary to integrate it into V2Ray * Update proto * parse duration conf with time.Parse() * moving health ping to observatory as a standalone component * moving health ping to observatory as a standalone component: auto generated file * add initialization for health ping * incorporate changes in router implementation * support principle target output * add v4 json support for BurstObservatory & fix balancer reference * update API command * remove cancelled API * return zero length value when observer is not found * remove duplicated targeted dispatch * adjust test with updated structure * bug fix for observer * fix strategy selector * fix strategy least load * Fix ticker usage ticker.Close does not close ticker.C * feat: Replace default Health Ping URL to HTTPS (#1991) * fix selectLeastLoad() returns wrong number of nodes (#2083) * Test: fix leastload strategy unit test * fix(router): panic caused by concurrent map read and write (#2678) * Clean up code --------- Co-authored-by: Jebbs <qjebbs@gmail.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 世界 <i@sekai.icu> Co-authored-by: Bernd Eichelberger <46166740+4-FLOSS-Free-Libre-Open-Source-Software@users.noreply.github.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: Rinka <kujourinka@gmail.com>
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package burst
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import (
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"context"
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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/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, 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, 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, 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, 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() (time.Duration, error) {
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if s.httpClient == nil {
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panic("pingClient no initialized")
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}
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req, err := http.NewRequest(http.MethodHead, 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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// don't wait for body
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resp.Body.Close()
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return time.Since(start), nil
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}
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