From 7f47bf452ab98b6fa63f452ae4fa406c4af9de44 Mon Sep 17 00:00:00 2001
From: zgfzgf <1901989065@qq.com>
Date: Fri, 6 Nov 2020 13:36:24 +0800
Subject: [PATCH 1/2] add chain base64 decode params

---
 cli/chain.go | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/cli/chain.go b/cli/chain.go
index e2d0ebb4ad6..0e870f0d2d8 100644
--- a/cli/chain.go
+++ b/cli/chain.go
@@ -3,6 +3,7 @@ package cli
 import (
 	"bytes"
 	"context"
+	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
@@ -1246,14 +1247,14 @@ var chainDecodeCmd = &cli.Command{
 }
 
 var chainDecodeParamsCmd = &cli.Command{
-	Name:  "params",
-	Usage: "Decode message params",
+	Name:      "params",
+	Usage:     "Decode message params",
+	ArgsUsage: "[toAddr method params]",
 	Flags: []cli.Flag{
 		&cli.StringFlag{
 			Name: "tipset",
 		},
 	},
-	ArgsUsage: "[toAddr method hexParams]",
 	Action: func(cctx *cli.Context) error {
 		api, closer, err := GetFullNodeAPI(cctx)
 		if err != nil {
@@ -1276,9 +1277,12 @@ var chainDecodeParamsCmd = &cli.Command{
 			return xerrors.Errorf("parsing method id: %w", err)
 		}
 
-		params, err := hex.DecodeString(cctx.Args().Get(2))
+		params, err := base64.StdEncoding.DecodeString(cctx.Args().Get(2))
 		if err != nil {
-			return xerrors.Errorf("parsing hex params: %w", err)
+			params, err = hex.DecodeString(cctx.Args().Get(2))
+			if err != nil {
+				return xerrors.Errorf("parsing params: %w", err)
+			}
 		}
 
 		ts, err := LoadTipSet(ctx, cctx, api)

From d98e989417dc009349514f480f0667300a4a0575 Mon Sep 17 00:00:00 2001
From: zgfzgf <1901989065@qq.com>
Date: Fri, 6 Nov 2020 15:02:08 +0800
Subject: [PATCH 2/2] chain decode params encoding

---
 cli/chain.go | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/cli/chain.go b/cli/chain.go
index 0e870f0d2d8..0fa999d1746 100644
--- a/cli/chain.go
+++ b/cli/chain.go
@@ -1254,6 +1254,11 @@ var chainDecodeParamsCmd = &cli.Command{
 		&cli.StringFlag{
 			Name: "tipset",
 		},
+		&cli.StringFlag{
+			Name:  "encoding",
+			Value: "base64",
+			Usage: "specify input encoding to parse",
+		},
 	},
 	Action: func(cctx *cli.Context) error {
 		api, closer, err := GetFullNodeAPI(cctx)
@@ -1277,14 +1282,21 @@ var chainDecodeParamsCmd = &cli.Command{
 			return xerrors.Errorf("parsing method id: %w", err)
 		}
 
-		params, err := base64.StdEncoding.DecodeString(cctx.Args().Get(2))
-		if err != nil {
+		var params []byte
+		switch cctx.String("encoding") {
+		case "base64":
+			params, err = base64.StdEncoding.DecodeString(cctx.Args().Get(2))
+			if err != nil {
+				return xerrors.Errorf("decoding base64 value: %w", err)
+			}
+		case "hex":
 			params, err = hex.DecodeString(cctx.Args().Get(2))
 			if err != nil {
-				return xerrors.Errorf("parsing params: %w", err)
+				return xerrors.Errorf("decoding hex value: %w", err)
 			}
+		default:
+			return xerrors.Errorf("unrecognized encoding: %s", cctx.String("encoding"))
 		}
-
 		ts, err := LoadTipSet(ctx, cctx, api)
 		if err != nil {
 			return err