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Merge pull request #2247 from wpaulino/grpc-proxy-endpoint

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rpcserver: forward gRPC proxy requests to localhost when listening on all interfaces
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Wilmer Paulino 2019-01-22 16:21:21 -08:00 committed by GitHub
commit 9860df69fe
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1 changed files with 14 additions and 3 deletions
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17
rpcserver.go
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@ -530,14 +530,25 @@ func (r *rpcServer) Start() error {
}()
}
// Finally, start the REST proxy for our gRPC server above.
// Finally, start the REST proxy for our gRPC server above. We'll ensure
// we direct LND to connect to its loopback address rather than a
// wildcard to prevent certificate issues when accessing the proxy
// externally.
//
// TODO(roasbeef): eventually also allow the sub-servers to themselves
// have a REST proxy.
mux := proxy.NewServeMux()
grpcEndpoint := cfg.RPCListeners[0].String()
switch {
case strings.Contains(grpcEndpoint, "0.0.0.0"):
grpcEndpoint = strings.Replace(
grpcEndpoint, "0.0.0.0", "127.0.0.1", 1,
)
case strings.Contains(grpcEndpoint, "[::]"):
grpcEndpoint = strings.Replace(grpcEndpoint, "[::]", "[::1]", 1)
}
err := lnrpc.RegisterLightningHandlerFromEndpoint(
context.Background(), mux, cfg.RPCListeners[0].String(),
r.restServerOpts,
context.Background(), mux, grpcEndpoint, r.restServerOpts,
)
if err != nil {
return err