cloudflared-mirror/streamhandler/request.go

35 lines
923 B
Go

package streamhandler
import (
"net/http"
"net/url"
"strings"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/pkg/errors"
)
const (
lbProbeUserAgentPrefix = "Mozilla/5.0 (compatible; Cloudflare-Traffic-Manager/1.0; +https://www.cloudflare.com/traffic-manager/;"
)
func FindCfRayHeader(h1 *http.Request) string {
return h1.Header.Get("Cf-Ray")
}
func IsLBProbeRequest(req *http.Request) bool {
return strings.HasPrefix(req.UserAgent(), lbProbeUserAgentPrefix)
}
func createRequest(stream *h2mux.MuxedStream, url *url.URL) (*http.Request, error) {
req, err := http.NewRequest(http.MethodGet, url.String(), h2mux.MuxedStreamReader{MuxedStream: stream})
if err != nil {
return nil, errors.Wrap(err, "unexpected error from http.NewRequest")
}
err = h2mux.H2RequestHeadersToH1Request(stream.Headers, req)
if err != nil {
return nil, errors.Wrap(err, "invalid request received")
}
return req, nil
}