1 files changed, 70 insertions, 0 deletions
diff --git a/client/cmd/get-consistency-proof/main.go b/client/cmd/get-consistency-proof/main.go
new file mode 100644
index 0000000..bb8a7a6
--- /dev/null
+++ b/client/cmd/get-consistency-proof/main.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+
+	"encoding/base64"
+
+	"github.com/golang/glog"
+	"github.com/system-transparency/stfe/client"
+	"github.com/system-transparency/stfe/types"
+)
+
+var (
+	first  = flag.String("first", "", "base64-encoded sth")
+	second = flag.String("second", "", "base64-encoded sth")
+)
+
+func main() {
+	flag.Parse()
+	defer glog.Flush()
+
+	client, err := client.NewClientFromFlags()
+	if err != nil {
+		glog.Errorf("NewClientFromFlags: %v", err)
+		return
+	}
+	sth1, sth2, err := newParamsFromFlags()
+	if err != nil {
+		glog.Errorf("NewRequestFromFlags: %v", err)
+		return
+	}
+
+	proof, err := client.GetConsistencyProof(context.Background(), sth1, sth2)
+	if err != nil {
+		glog.Errorf("GetConsistencyProof: %v", err)
+		return
+	}
+	serialized, err := types.Marshal(*proof)
+	if err != nil {
+		glog.Errorf("Marshal: %v", err)
+		return
+	}
+	fmt.Println("proof:", base64.StdEncoding.EncodeToString(serialized))
+}
+
+func newParamsFromFlags() (*types.StItem, *types.StItem, error) {
+	sth1, err := decodeSthStr(*first)
+	if err != nil {
+		return nil, nil, fmt.Errorf("first: decodeSthStr: %v", err)
+	}
+	sth2, err := decodeSthStr(*second)
+	if err != nil {
+		return nil, nil, fmt.Errorf("second: decodeSthStr: %v", err)
+	}
+	return sth1, sth2, nil
+}
+
+func decodeSthStr(sthStr string) (*types.StItem, error) {
+	serialized, err := base64.StdEncoding.DecodeString(sthStr)
+	if err != nil {
+		return nil, fmt.Errorf("DecodeString: %v", err)
+	}
+	var item types.StItem
+	if err = types.Unmarshal(serialized, &item); err != nil {
+		return nil, fmt.Errorf("Unmarshal: %v", err)
+	}
+	return &item, nil
+}