coredns/middleware/dnssec/responsewriter.go
Yong Tang 81af74aad0 Fix import path github.com/miekg/coredns -> github.com/coredns/coredns (#547)
This fix fixes import path from
`github.com/miekg/coredns`
->
`github.com/coredns/coredns`
2017-02-22 06:51:47 +00:00

49 lines
1.2 KiB
Go

package dnssec
import (
"log"
"time"
"github.com/coredns/coredns/middleware"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
// ResponseWriter sign the response on the fly.
type ResponseWriter struct {
dns.ResponseWriter
d Dnssec
}
// WriteMsg implements the dns.ResponseWriter interface.
func (d *ResponseWriter) WriteMsg(res *dns.Msg) error {
// By definition we should sign anything that comes back, we should still figure out for
// which zone it should be.
state := request.Request{W: d.ResponseWriter, Req: res}
qname := state.Name()
zone := middleware.Zones(d.d.zones).Matches(qname)
if zone == "" {
return d.ResponseWriter.WriteMsg(res)
}
if state.Do() {
res = d.d.Sign(state, zone, time.Now().UTC())
cacheSize.WithLabelValues("signature").Set(float64(d.d.cache.Len()))
}
state.SizeAndDo(res)
return d.ResponseWriter.WriteMsg(res)
}
// Write implements the dns.ResponseWriter interface.
func (d *ResponseWriter) Write(buf []byte) (int, error) {
log.Printf("[WARNING] Dnssec called with Write: not signing reply")
n, err := d.ResponseWriter.Write(buf)
return n, err
}
// Hijack implements the dns.ResponseWriter interface.
func (d *ResponseWriter) Hijack() { d.ResponseWriter.Hijack() }