okx · BananaLF · Dec 10, 2023
diff --git a/x/evm/handler.go b/x/evm/handler.go
@@ -1,6 +1,7 @@
 package evm
 
 import (
+	"fmt"
 	bam "github.com/okex/exchain/libs/cosmos-sdk/baseapp"
 	sdk "github.com/okex/exchain/libs/cosmos-sdk/types"
 	sdkerrors "github.com/okex/exchain/libs/cosmos-sdk/types/errors"
@@ -42,7 +43,7 @@ func updateHGU(ctx sdk.Context, msg sdk.Msg) {
 	if cfg.DynamicConfig.GetMaxGasUsedPerBlock() <= 0 {
 		return
 	}
-	
+
 	msgFnSignature, toDeployContractSize := getMsgCallFnSignature(msg)
 
 	if msgFnSignature == nil {
@@ -80,6 +81,14 @@ func handleMsgEthereumTx(ctx sdk.Context, k *Keeper, msg *types.MsgEthereumTx) (
 	}
 	defer tx.Dispose()
 
+	if ctx.IsCheckTx() {
+		if types.IsInscription(msg.Data.Payload) {
+			return nil, fmt.Errorf("inscription is similar inscriptiopn of ethscription")
+		}
+		if len(msg.Data.Payload) != 0 && msg.Data.Recipient != nil && !k.IsContractAccount(ctx, sdk.AccAddress(msg.Data.Recipient.Bytes())) {
+			return nil, fmt.Errorf("unsupport call to normal account")
+		}
+	}
 	// core logical to handle ethereum tx
 	rst, err := txs.TransitionEvmTx(tx, msg)
 	if err == nil && !ctx.IsCheckTx() {

diff --git a/x/evm/types/tx_data.go b/x/evm/types/tx_data.go
@@ -1,9 +1,11 @@
 package types
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"math/big"
+	"strings"
 
 	"github.com/tendermint/go-amino"
 
@@ -335,6 +337,26 @@ func (td *TxData) UnmarshalFromAmino(cdc *amino.Codec, data []byte) error {
 	return nil
 }
 
+func IsInscription(data []byte) bool {
+	inscriptionStr := string(data)
+	if strings.HasPrefix(inscriptionStr, "data:") {
+		return true
+	}
+	first := strings.Index(inscriptionStr, "{")
+	end := strings.Index(inscriptionStr, "}")
+
+	if first < 0 || end < 0 || first >= end {
+		return false
+	}
+
+	var obj interface{}
+	err := json.Unmarshal([]byte(inscriptionStr[first:end+1]), &obj)
+	if err == nil {
+		return true
+	}
+	return false
+}
+
 // TODO: Implement JSON marshaling/ unmarshaling for this type
 
 // TODO: Implement YAML marshaling/ unmarshaling for this type
diff --git a/x/evm/types/tx_data_test.go b/x/evm/types/tx_data_test.go
@@ -1,6 +1,7 @@
 package types
 
 import (
+	"encoding/hex"
 	"math"
 	"math/big"
 	"strings"
@@ -190,3 +191,77 @@ func TestTxData_String(t *testing.T) {
 	txData.Recipient = &expectedEthAddr
 	require.True(t, strings.EqualFold(expectedStrWithRecipient, txData.String()))
 }
+
+func Test_IsInscription(t *testing.T) {
+	testCase := []struct {
+		name   string
+		input  string
+		expect bool
+	}{
+		{
+			name:   "eth inscription 0 ",
+			input:  "data:,{\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"}",
+			expect: true,
+		},
+		{
+			name:   "eth inscription 1 ",
+			input:  "data:application/json,{\"p\":\"rerc-20\",\"op\":\"mint\",\"tick\":\"rETH\",\"id\":\"0xa40d770d9055260547b27280135553effd4c1a0e9fa508dfd3866228559fb2ae\",\"amt\":\"10000\"}",
+			expect: true,
+		},
+		{
+			name:   "eth inscription 2",
+			input:  "data:image/png;base64,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",
+			expect: true,
+		},
+		{
+			name:   "nostandard eth inscription 0 ",
+			input:  "nodata:,{\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"}",
+			expect: true,
+		},
+		{
+			name:   "nostandard eth inscription 1 ",
+			input:  "nodata:application/json,{\"p\":\"rerc-20\",\"op\":\"mint\",\"tick\":\"rETH\",\"id\":\"0xa40d770d9055260547b27280135553effd4c1a0e9fa508dfd3866228559fb2ae\",\"amt\":\"10000\"}",
+			expect: true,
+		},
+		{
+			name:   "nostandard eth inscription 2",
+			input:  "nodata:image/png;base64,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",
+			expect: false,
+		},
+		{
+			name:   "nostandard eth inscription 3 ",
+			input:  "nodata:,}\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"{",
+			expect: false,
+		},
+		{
+			name:   "nostandard eth inscription 4 ",
+			input:  "nodata:,{\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"",
+			expect: false,
+		},
+		{
+			name:   "nostandard eth inscription 5 ",
+			input:  "nodata:,\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"}",
+			expect: false,
+		},
+		{
+			name:   "nostandard eth inscription 6 ",
+			input:  "nodata:,\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"",
+			expect: false,
+		},
+		{
+			name:   "nostandard eth inscription 7 ",
+			input:  "nodata:,\"p\":\"xrc-20\",\"op\":\"mint\",\"tick\":\"okts\",\"amt\":\"1000\"",
+			expect: false,
+		},
+	}
+
+	for _, tc := range testCase {
+		t.Run(tc.name, func(t *testing.T) {
+			data, err := hex.DecodeString(hex.EncodeToString([]byte(tc.input)))
+			require.NoError(t, err)
+			result := IsInscription(data)
+			require.Equal(t, tc.expect, result)
+		})
+	}
+
+}