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Add ability to communicate with horcrux via grpc
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package signer | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| cometlog "github.com/cometbft/cometbft/libs/log" | ||
| cometprotoprivval "github.com/cometbft/cometbft/proto/tendermint/privval" | ||
| "github.com/strangelove-ventures/horcrux/signer/proto" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
| ) | ||
|
|
||
| var _ HorcruxConnection = (*HorcruxGRPCClient)(nil) | ||
|
|
||
| type HorcruxGRPCClient struct { | ||
| grpcClient proto.RemoteSignerClient | ||
| logger cometlog.Logger | ||
| } | ||
|
|
||
| func NewHorcruxGRPCClient( | ||
| logger cometlog.Logger, | ||
| address string, | ||
| ) (*HorcruxGRPCClient, error) { | ||
| conn, err := grpc.Dial(address, grpc.WithTransportCredentials(insecure.NewCredentials())) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &HorcruxGRPCClient{ | ||
| logger: logger, | ||
| grpcClient: proto.NewRemoteSignerClient(conn), | ||
| }, nil | ||
| } | ||
|
|
||
| func (c *HorcruxGRPCClient) SendRequest(req cometprotoprivval.Message) (*cometprotoprivval.Message, error) { | ||
| switch typedReq := req.Sum.(type) { | ||
| case *cometprotoprivval.Message_SignVoteRequest: | ||
| return c.handleSignVoteRequest(req) | ||
| case *cometprotoprivval.Message_SignProposalRequest: | ||
| return c.handleSignProposalRequest(req) | ||
| case *cometprotoprivval.Message_PubKeyRequest: | ||
| return c.handlePubKeyRequest(req) | ||
| case *cometprotoprivval.Message_PingRequest: | ||
| return c.handlePingRequest() | ||
| default: | ||
| c.logger.Error("Unknown request", "err", fmt.Errorf("%v", typedReq)) | ||
| return &cometprotoprivval.Message{}, nil | ||
| } | ||
| } | ||
|
|
||
| func (c *HorcruxGRPCClient) handleSignVoteRequest(req cometprotoprivval.Message) (*cometprotoprivval.Message, error) { | ||
| res, err := c.grpcClient.SignVote(context.TODO(), req.GetSignVoteRequest()) | ||
| if err == nil { | ||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_SignedVoteResponse{SignedVoteResponse: res}, | ||
| }, nil | ||
| } | ||
|
|
||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_SignedVoteResponse{SignedVoteResponse: &cometprotoprivval.SignedVoteResponse{ | ||
| Error: getRemoteSignerError(err), | ||
| }}, | ||
| }, nil | ||
| } | ||
|
|
||
| func (c *HorcruxGRPCClient) handleSignProposalRequest(req cometprotoprivval.Message) (*cometprotoprivval.Message, error) { | ||
| res, err := c.grpcClient.SignProposal(context.TODO(), req.GetSignProposalRequest()) | ||
| if err == nil { | ||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_SignedProposalResponse{SignedProposalResponse: res}, | ||
| }, nil | ||
| } | ||
|
|
||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_SignedProposalResponse{SignedProposalResponse: &cometprotoprivval.SignedProposalResponse{ | ||
| Error: getRemoteSignerError(err), | ||
| }}, | ||
| }, nil | ||
| } | ||
|
|
||
| func (c *HorcruxGRPCClient) handlePubKeyRequest(req cometprotoprivval.Message) (*cometprotoprivval.Message, error) { | ||
| res, err := c.grpcClient.PubKey(context.TODO(), req.GetPubKeyRequest()) | ||
| if err == nil { | ||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_PubKeyResponse{PubKeyResponse: res}, | ||
| }, nil | ||
| } | ||
|
|
||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_PubKeyResponse{PubKeyResponse: &cometprotoprivval.PubKeyResponse{ | ||
| Error: getRemoteSignerError(err), | ||
| }}, | ||
| }, nil | ||
| } | ||
|
|
||
| func (c *HorcruxGRPCClient) handlePingRequest() (*cometprotoprivval.Message, error) { | ||
| return &cometprotoprivval.Message{ | ||
| Sum: &cometprotoprivval.Message_PingResponse{ | ||
| PingResponse: &cometprotoprivval.PingResponse{}, | ||
| }, | ||
| }, nil | ||
| } | ||
|
|
||
| func getRemoteSignerError(err error) *cometprotoprivval.RemoteSignerError { | ||
| if err == nil { | ||
| return nil | ||
| } | ||
| return &cometprotoprivval.RemoteSignerError{ | ||
| Code: 0, | ||
| Description: err.Error(), | ||
| } | ||
| } |
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