package proxy import ( "github.com/pkg/errors" dbm "github.com/tendermint/tm-db" log "github.com/tendermint/tendermint/libs/log" "github.com/tendermint/tendermint/lite" lclient "github.com/tendermint/tendermint/lite/client" ) func NewVerifier( chainID, rootDir string, client lclient.SignStatusClient, logger log.Logger, cacheSize int, ) (*lite.DynamicVerifier, error) { logger = logger.With("module", "lite/proxy") logger.Info("lite/proxy/NewVerifier()...", "chainID", chainID, "rootDir", rootDir, "client", client) memProvider := lite.NewDBProvider("trusted.mem", dbm.NewMemDB()).SetLimit(cacheSize) lvlProvider := lite.NewDBProvider("trusted.lvl", dbm.NewDB("trust-base", dbm.GoLevelDBBackend, rootDir)) trust := lite.NewMultiProvider( memProvider, lvlProvider, ) source := lclient.NewProvider(chainID, client) cert := lite.NewDynamicVerifier(chainID, trust, source) cert.SetLogger(logger) // Sets logger recursively. // TODO: Make this more secure, e.g. make it interactive in the console? _, err := trust.LatestFullCommit(chainID, 1, 1<<63-1) if err != nil { logger.Info("lite/proxy/NewVerifier found no trusted full commit, initializing from source from height 1...") fc, err := source.LatestFullCommit(chainID, 1, 1) if err != nil { return nil, errors.Wrap(err, "fetching source full commit @ height 1") } err = trust.SaveFullCommit(fc) if err != nil { return nil, errors.Wrap(err, "saving full commit to trusted") } } return cert, nil }