87214a4c5c
* introduce metric naming test Signed-off-by: zounengren <zounengren@cmss.chinamobile.com> * Update metrics.go Signed-off-by: zounengren <zounengren@cmss.chinamobile.com>
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package dnssec
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import (
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"context"
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"github.com/coredns/coredns/plugin"
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"github.com/coredns/coredns/plugin/metrics"
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"github.com/coredns/coredns/request"
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"github.com/miekg/dns"
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)
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// ServeDNS implements the plugin.Handler interface.
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func (d Dnssec) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
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state := request.Request{W: w, Req: r}
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do := state.Do()
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qname := state.Name()
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qtype := state.QType()
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zone := plugin.Zones(d.zones).Matches(qname)
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if zone == "" {
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return plugin.NextOrFailure(d.Name(), d.Next, ctx, w, r)
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}
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state.Zone = zone
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server := metrics.WithServer(ctx)
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// Intercept queries for DNSKEY, but only if one of the zones matches the qname, otherwise we let
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// the query through.
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if qtype == dns.TypeDNSKEY {
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for _, z := range d.zones {
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if qname == z {
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resp := d.getDNSKEY(state, z, do, server)
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resp.Authoritative = true
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w.WriteMsg(resp)
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return dns.RcodeSuccess, nil
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}
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}
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}
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if do {
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drr := &ResponseWriter{w, d, server}
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return plugin.NextOrFailure(d.Name(), d.Next, ctx, drr, r)
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}
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return plugin.NextOrFailure(d.Name(), d.Next, ctx, w, r)
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}
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// Name implements the Handler interface.
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func (d Dnssec) Name() string { return "dnssec" }
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