func (h *FilteringHandler) OnRequest(r *http.Request, ctx *goproxy.ProxyCtx) (
*http.Request, *http.Response) {
host := r.URL.Host
if host == "" {
host = r.Host
}
rq := &adblock.Request{
URL: r.URL.String(),
Domain: host,
OriginDomain: getReferrerDomain(r),
}
rules := h.Cache.Rules()
start := time.Now()
matched, id := rules.Matcher.Match(rq)
end := time.Now()
duration := end.Sub(start) / time.Millisecond
if matched {
rule := rules.Rules[id]
log.Printf("rejected in %dms: %s\n", duration, r.URL.String())
log.Printf(" by %s\n", rule)
return r, goproxy.NewResponse(r, goproxy.ContentTypeText,
http.StatusNotFound, "Not Found")
}
ctx.UserData = &ProxyState{
Duration: duration,
URL: r.URL.String(),
}
return r, nil
}
