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smartcontract: disallow Null and non-utf8 String

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Follow the https://github.com/neo-project/neo/pull/2810#discussion_r1295900728.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This commit is contained in:
Anna Shaleva 2023-08-18 15:10:04 +03:00
parent ed2c4b0319
commit bb2a99d451
2 changed files with 26 additions and 21 deletions
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5
pkg/smartcontract/param_type.go
View file

@ -7,6 +7,7 @@ import (
"fmt"
"math/big"
"strings"
"unicode/utf8"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
@ -203,8 +204,10 @@ func (pt ParamType) Match(v stackitem.Item) bool {
return vt == stackitem.BooleanT
case IntegerType:
return vt == stackitem.IntegerT
case ByteArrayType, StringType:
case ByteArrayType:
return vt == stackitem.ByteArrayT || vt == stackitem.BufferT || vt == stackitem.AnyT
case StringType:
return (vt == stackitem.ByteArrayT || vt == stackitem.BufferT) && utf8.Valid(v.Value().([]byte))
case Hash160Type:
return checkBytesWithLen(vt, v, Hash160Len)
case Hash256Type:

4
pkg/smartcontract/param_type_test.go
View file

@ -447,6 +447,8 @@ func TestParamTypeMatch(t *testing.T) {
stackitem.Make(0): MapType,
stackitem.Make(0): InteropInterfaceType,
stackitem.Make(0): VoidType,
stackitem.Null{}: StringType,
stackitem.Make([]byte{0x80}): StringType, // non utf-8
} {
require.Falsef(t, pt.Match(itm), "%s - %s", pt.String(), itm.String())
}
@ -456,11 +458,11 @@ func TestParamTypeMatch(t *testing.T) {
stackitem.Make(0): IntegerType,
stackitem.Make(100500): IntegerType,
stackitem.Make([]byte{1}): ByteArrayType,
stackitem.Make([]byte{0x80}): ByteArrayType, // non utf-8
stackitem.Make([]byte{1}): StringType,
stackitem.NewBuffer([]byte{1}): ByteArrayType,
stackitem.NewBuffer([]byte{1}): StringType,
stackitem.Null{}: ByteArrayType,
stackitem.Null{}: StringType,
stackitem.Make(util.Uint160{}.BytesBE()): Hash160Type,
stackitem.Make(util.Uint256{}.BytesBE()): Hash256Type,
stackitem.Null{}: Hash160Type,