initial port of cosmos-sdk basecli proxy

lite/proxy/certifier.go

@@ -0,0 +1,30 @@
+package proxy
+
+import (
+	"github.com/tendermint/tendermint/lite"
+	certclient "github.com/tendermint/tendermint/lite/client"
+	"github.com/tendermint/tendermint/lite/files"
+)
+
+func GetCertifier(chainID, rootDir, nodeAddr string) (*lite.Inquiring, error) {
+	trust := lite.NewCacheProvider(
+		lite.NewMemStoreProvider(),
+		files.NewProvider(rootDir),
+	)
+
+	source := certclient.NewHTTPProvider(nodeAddr)
+
+	// XXX: total insecure hack to avoid `init`
+	fc, err := source.LatestCommit()
+	/* XXX
+	// this gets the most recent verified commit
+	fc, err := trust.LatestCommit()
+	if certerr.IsCommitNotFoundErr(err) {
+		return nil, errors.New("Please run init first to establish a root of trust")
+	}*/
+	if err != nil {
+		return nil, err
+	}
+	cert := lite.NewInquiring(chainID, fc, trust, source)
+	return cert, nil
+}