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b9cf32f7a9
While looking into the proxy middleware it appears that there are several golint messages: ``` ubuntu@ubuntu:~/coredns$ golint middleware/proxy/ middleware/proxy/lookup.go:66:1: exported method Proxy.Forward should have comment or be unexported middleware/proxy/proxy.go:24:6: exported type Client should have comment or be unexported middleware/proxy/proxy.go:107:1: exported function Clients should have comment or be unexported middleware/proxy/reverseproxy.go:10:6: exported type ReverseProxy should have comment or be unexported middleware/proxy/reverseproxy.go:16:1: exported method ReverseProxy.ServeDNS should have comment or be unexported middleware/proxy/upstream.go:42:6: exported type Options should have comment or be unexported ``` This fix addressed the above golint messages. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
45 lines
856 B
Go
45 lines
856 B
Go
// Package proxy is middleware that proxies requests.
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package proxy
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import (
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"github.com/miekg/coredns/request"
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"github.com/miekg/dns"
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)
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// ReverseProxy is a basic reverse proxy
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type ReverseProxy struct {
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Host string
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Client Client
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Options Options
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}
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// ServeDNS implements the middleware.Handler interface.
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func (p ReverseProxy) ServeDNS(w dns.ResponseWriter, r *dns.Msg, extra []dns.RR) error {
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var (
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reply *dns.Msg
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err error
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)
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switch {
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case request.Proto(w) == "tcp": // TODO(miek): keep this in request
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reply, _, err = p.Client.TCP.Exchange(r, p.Host)
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default:
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reply, _, err = p.Client.UDP.Exchange(r, p.Host)
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}
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if reply != nil && reply.Truncated {
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// Suppress proxy error for truncated responses
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err = nil
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}
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if err != nil {
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return err
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}
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reply.Compress = true
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reply.Id = r.Id
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w.WriteMsg(reply)
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return nil
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}
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