From 61b0d7ba8f6fc925937675e582d035117274c950 Mon Sep 17 00:00:00 2001
From: Tanmay <tanmay.bhattacharya.smit@gmail.com>
Date: Fri, 5 Jan 2024 13:43:03 -0500
Subject: [PATCH] remove checks fro prefixes

---
 common/address.go      | 12 ------------
 common/address_test.go | 10 ----------
 common/chain.go        | 13 -------------
 3 files changed, 35 deletions(-)

diff --git a/common/address.go b/common/address.go
index 5c9e8a3bfe..15e614e14a 100644
--- a/common/address.go
+++ b/common/address.go
@@ -71,18 +71,6 @@ func DecodeBtcAddress(inputAddress string, chainId int64) (address btcutil.Addre
 	if chainParams == nil {
 		return nil, fmt.Errorf("chain params not found")
 	}
-	oneIndex := strings.LastIndexByte(inputAddress, '1')
-	if oneIndex > 1 {
-		prefix := inputAddress[:oneIndex]
-		ok := IsValidPrefix(prefix, chainId)
-		if !ok {
-			return nil, fmt.Errorf("invalid prefix:%s,chain-id:%d", prefix, chainId)
-		}
-		addressString := inputAddress[oneIndex+1:]
-		if len(addressString) != 39 {
-			return nil, fmt.Errorf("invalid address length:%d,inputaddress:%s", len(addressString), inputAddress)
-		}
-	}
 	address, err = btcutil.DecodeAddress(inputAddress, chainParams)
 	return
 }
diff --git a/common/address_test.go b/common/address_test.go
index 60632d1379..c3d86315ed 100644
--- a/common/address_test.go
+++ b/common/address_test.go
@@ -1,7 +1,6 @@
 package common
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -33,18 +32,9 @@ func TestDecodeBtcAddress(t *testing.T) {
 		_, err := DecodeBtcAddress("14CEjTd5ci3228J45GdnGeUKLSSeCWUQxK", 0)
 		require.ErrorContains(t, err, "is not a Bitcoin chain")
 	})
-	t.Run("invalid prefix", func(t *testing.T) {
-		_, err := DecodeBtcAddress("bcrt1qy9pqmk2pd9sv63g27jt8r657wy0d9uee4x2dt2", 18332)
-		require.ErrorContains(t, err, "invalid prefix")
-	})
 	t.Run("invalid checksum", func(t *testing.T) {
 		_, err := DecodeBtcAddress("tb1qy9pqmk2pd9sv63g27jt8r657wy0d9uee4x2dt2", 18332)
 		require.ErrorContains(t, err, "invalid checksum")
-		fmt.Println(err)
-	})
-	t.Run("valid address", func(t *testing.T) {
-		_, err := DecodeBtcAddress("bcrt1qy9pqmk2pd9sv63g27jt8r657wy0d9uee4x2dt22", 18444)
-		require.ErrorContains(t, err, "invalid address length")
 	})
 	t.Run("valid address", func(t *testing.T) {
 		_, err := DecodeBtcAddress("bcrt1qy9pqmk2pd9sv63g27jt8r657wy0d9uee4x2dt2", 18444)
diff --git a/common/chain.go b/common/chain.go
index d07805a9f6..c966cbd412 100644
--- a/common/chain.go
+++ b/common/chain.go
@@ -210,19 +210,6 @@ func GetBTCChainParams(chainID int64) (*chaincfg.Params, error) {
 	}
 }
 
-func IsValidPrefix(prefix string, chainID int64) bool {
-	switch chainID {
-	case 18444:
-		return prefix == "bcrt"
-	case 18332:
-		return prefix == "tb"
-	case 8332:
-		return prefix == "bc"
-	default:
-		return false
-	}
-}
-
 // InChainList checks whether the chain is in the chain list
 func (chain Chain) InChainList(chainList []*Chain) bool {
 	return ChainIDInChainList(chain.ChainId, chainList)