lnd.xprv/lnrpc/verrpc/server.go

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2020-04-10 03:05:46 +03:00
package verrpc
import (
"context"
"github.com/lightningnetwork/lnd/build"
"google.golang.org/grpc"
"gopkg.in/macaroon-bakery.v2/bakery"
)
const subServerName = "VersionRPC"
var macPermissions = map[string][]bakery.Op{
"/verrpc.Versioner/GetVersion": {{
Entity: "info",
Action: "read",
}},
}
// Server is an rpc server that supports querying for information about the
// running binary.
type Server struct{}
// Start launches any helper goroutines required for the rpcServer to function.
//
// NOTE: This is part of the lnrpc.SubServer interface.
func (s *Server) Start() error {
return nil
}
// Stop signals any active goroutines for a graceful closure.
//
// NOTE: This is part of the lnrpc.SubServer interface.
func (s *Server) Stop() error {
return nil
}
// Name returns a unique string representation of the sub-server. This can be
// used to identify the sub-server and also de-duplicate them.
//
// NOTE: This is part of the lnrpc.SubServer interface.
func (s *Server) Name() string {
return subServerName
}
// RegisterWithRootServer will be called by the root gRPC server to direct a
// sub RPC server to register itself with the main gRPC root server. Until this
// is called, each sub-server won't be able to have requests routed towards it.
//
// NOTE: This is part of the lnrpc.SubServer interface.
func (s *Server) RegisterWithRootServer(grpcServer *grpc.Server) error {
RegisterVersionerServer(grpcServer, s)
log.Debugf("Versioner RPC server successfully registered with root " +
"gRPC server")
return nil
}
// GetVersion returns information about the compiled binary.
func (s *Server) GetVersion(_ context.Context,
_ *VersionRequest) (*Version, error) {
return &Version{
Commit: build.Commit,
CommitHash: build.CommitHash,
Version: build.Version(),
AppMajor: uint32(build.AppMajor),
AppMinor: uint32(build.AppMinor),
AppPatch: uint32(build.AppPatch),
AppPreRelease: build.AppPreRelease,
BuildTags: build.Tags(),
GoVersion: build.GoVersion,
}, nil
}