package libgm import ( "crypto/sha256" "encoding/base64" "go.mau.fi/mautrix-gmessages/libgm/pblite" "go.mau.fi/mautrix-gmessages/libgm/gmproto" ) func (r *RPC) deduplicateHash(hash [32]byte) bool { const recentUpdatesLen = len(r.recentUpdates) for i := r.recentUpdatesPtr + recentUpdatesLen - 1; i >= r.recentUpdatesPtr; i-- { if r.recentUpdates[i%recentUpdatesLen] == hash { return true } } r.recentUpdates[r.recentUpdatesPtr] = hash r.recentUpdatesPtr = (r.recentUpdatesPtr + 1) % recentUpdatesLen return false } func (r *RPC) logContent(res *pblite.Response) { if r.client.Logger.Trace().Enabled() && res.Data.Decrypted != nil { r.client.Logger.Trace(). Str("proto_name", string(res.Data.Decrypted.ProtoReflect().Descriptor().FullName())). Str("data", base64.StdEncoding.EncodeToString(res.Data.RawDecrypted)). Msg("Got event") } } func (r *RPC) deduplicateUpdate(response *pblite.Response) bool { if response.Data.RawDecrypted != nil { contentHash := sha256.Sum256(response.Data.RawDecrypted) if r.deduplicateHash(contentHash) { r.client.Logger.Trace().Hex("data_hash", contentHash[:]).Msg("Ignoring duplicate update") return true } r.logContent(response) } return false } func (r *RPC) HandleRPCMsg(msg *gmproto.InternalMessage) { response, decodeErr := pblite.DecryptInternalMessage(msg, r.client.AuthData.RequestCrypto) if decodeErr != nil { r.client.Logger.Error().Err(decodeErr).Msg("rpc decrypt msg err") return } if response == nil { r.client.Logger.Error().Msg("nil response in rpc handler") return } r.client.sessionHandler.queueMessageAck(response.ResponseID) if r.client.sessionHandler.receiveResponse(response) { return } switch response.BugleRoute { case gmproto.BugleRoute_PairEvent: go r.client.handlePairingEvent(response) case gmproto.BugleRoute_DataEvent: if r.skipCount > 0 { r.skipCount-- r.client.Logger.Debug(). Any("action", response.Data.Action). Int("remaining_skip_count", r.skipCount). Msg("Skipped DataEvent") if response.Data.Decrypted != nil { r.client.Logger.Trace(). Str("proto_name", string(response.Data.Decrypted.ProtoReflect().Descriptor().FullName())). Str("data", base64.StdEncoding.EncodeToString(response.Data.RawDecrypted)). Msg("Skipped event data") } return } r.client.handleUpdatesEvent(response) default: r.client.Logger.Debug().Any("res", response).Msg("Got unknown bugle route") } }