25 lines
748 B
Go
25 lines
748 B
Go
|
package httpproxy
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"net/http"
|
||
|
|
)
|
||
|
|
|
||
|
|
func (h *handler) isAccepted(responseWriter http.ResponseWriter, request *http.Request) bool {
|
||
|
|
// Not compatible with HTTP < 1.0 or HTTP >= 2.0 (see https://github.com/golang/go/issues/14797#issuecomment-196103814)
|
||
|
|
const (
|
||
|
|
minimalMajorVersion = 1
|
||
|
|
minimalMinorVersion = 0
|
||
|
|
maximumMajorVersion = 2
|
||
|
|
maximumMinorVersion = 0
|
||
|
|
)
|
||
|
|
if !request.ProtoAtLeast(minimalMajorVersion, minimalMinorVersion) ||
|
||
|
|
request.ProtoAtLeast(maximumMajorVersion, maximumMinorVersion) {
|
||
|
|
message := fmt.Sprintf("http version not supported: %s", request.Proto)
|
||
|
|
h.logger.Info("%s, from %s", message, request.RemoteAddr)
|
||
|
|
http.Error(responseWriter, message, http.StatusBadRequest)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
return true
|
||
|
|
}
|