f823825f8a
* plugin/forward: Move Proxy into pkg/plugin/proxy, to allow forward.Proxy to be used outside of forward plugin. Signed-off-by: Patrick Downey <patrick.downey@dioadconsulting.com>
99 lines
2.8 KiB
Go
99 lines
2.8 KiB
Go
package proxy
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import (
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"context"
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"crypto/tls"
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"testing"
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"time"
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"github.com/coredns/coredns/plugin/pkg/dnstest"
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"github.com/coredns/coredns/plugin/pkg/transport"
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"github.com/coredns/coredns/plugin/test"
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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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func TestProxy(t *testing.T) {
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s := dnstest.NewServer(func(w dns.ResponseWriter, r *dns.Msg) {
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ret := new(dns.Msg)
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ret.SetReply(r)
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ret.Answer = append(ret.Answer, test.A("example.org. IN A 127.0.0.1"))
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w.WriteMsg(ret)
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})
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defer s.Close()
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p := NewProxy(s.Addr, transport.DNS)
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p.readTimeout = 10 * time.Millisecond
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p.Start(5 * time.Second)
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m := new(dns.Msg)
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m.SetQuestion("example.org.", dns.TypeA)
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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req := request.Request{Req: m, W: rec}
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resp, err := p.Connect(context.Background(), req, Options{PreferUDP: true})
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if err != nil {
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t.Errorf("Failed to connect to testdnsserver: %s", err)
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}
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if x := resp.Answer[0].Header().Name; x != "example.org." {
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t.Errorf("Expected %s, got %s", "example.org.", x)
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}
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}
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func TestProxyTLSFail(t *testing.T) {
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// This is an udp/tcp test server, so we shouldn't reach it with TLS.
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s := dnstest.NewServer(func(w dns.ResponseWriter, r *dns.Msg) {
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ret := new(dns.Msg)
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ret.SetReply(r)
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ret.Answer = append(ret.Answer, test.A("example.org. IN A 127.0.0.1"))
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w.WriteMsg(ret)
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})
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defer s.Close()
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p := NewProxy(s.Addr, transport.TLS)
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p.readTimeout = 10 * time.Millisecond
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p.SetTLSConfig(&tls.Config{})
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p.Start(5 * time.Second)
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m := new(dns.Msg)
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m.SetQuestion("example.org.", dns.TypeA)
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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req := request.Request{Req: m, W: rec}
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_, err := p.Connect(context.Background(), req, Options{})
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if err == nil {
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t.Fatal("Expected *not* to receive reply, but got one")
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}
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}
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func TestProtocolSelection(t *testing.T) {
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p := NewProxy("bad_address", transport.DNS)
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p.readTimeout = 10 * time.Millisecond
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stateUDP := request.Request{W: &test.ResponseWriter{}, Req: new(dns.Msg)}
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stateTCP := request.Request{W: &test.ResponseWriter{TCP: true}, Req: new(dns.Msg)}
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ctx := context.TODO()
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go func() {
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p.Connect(ctx, stateUDP, Options{})
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p.Connect(ctx, stateUDP, Options{ForceTCP: true})
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p.Connect(ctx, stateUDP, Options{PreferUDP: true})
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p.Connect(ctx, stateUDP, Options{PreferUDP: true, ForceTCP: true})
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p.Connect(ctx, stateTCP, Options{})
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p.Connect(ctx, stateTCP, Options{ForceTCP: true})
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p.Connect(ctx, stateTCP, Options{PreferUDP: true})
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p.Connect(ctx, stateTCP, Options{PreferUDP: true, ForceTCP: true})
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}()
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for i, exp := range []string{"udp", "tcp", "udp", "tcp", "tcp", "tcp", "udp", "tcp"} {
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proto := <-p.transport.dial
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p.transport.ret <- nil
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if proto != exp {
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t.Errorf("Unexpected protocol in case %d, expected %q, actual %q", i, exp, proto)
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}
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}
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}
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