traefik/pkg/server/keep_alive_middleware.go

29 lines
960 B
Go

package server
import (
"net/http"
"time"
ptypes "github.com/traefik/paerser/types"
"github.com/traefik/traefik/v2/pkg/log"
)
func newKeepAliveMiddleware(next http.Handler, maxRequests int, maxTime ptypes.Duration) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
state, ok := req.Context().Value(connStateKey).(*connState)
if ok {
state.HTTPRequestCount++
if maxRequests > 0 && state.HTTPRequestCount >= maxRequests {
log.WithoutContext().Debug("Close because of too many requests")
state.KeepAliveState = "Close because of too many requests"
rw.Header().Set("Connection", "close")
}
if maxTime > 0 && time.Now().After(state.Start.Add(time.Duration(maxTime))) {
log.WithoutContext().Debug("Close because of too long connection")
state.KeepAliveState = "Close because of too long connection"
rw.Header().Set("Connection", "close")
}
}
next.ServeHTTP(rw, req)
})
}