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Merge pull request #3329 from nspcc-dev/support-rpc-maps

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Roman Khimov 2024-02-28 16:26:29 +03:00 committed by GitHub
commit 9d7357c9fd
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GPG key ID: B5690EEEBB952194
4 changed files with 194 additions and 68 deletions
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22
pkg/services/rpcsrv/params/param.go
View file

@ -34,6 +34,13 @@ type (
Type smartcontract.ParamType `json:"type"`
Value Param `json:"value"`
}
// FuncParamKV represents a pair of function argument parameters
// a slice of which is stored in FuncParam of [smartcontract.MapType] type.
FuncParamKV struct {
Key FuncParam `json:"key"`
Value FuncParam `json:"value"`
}
)
var (
@ -358,6 +365,21 @@ func (p *Param) GetFuncParam() (FuncParam, error) {
return fp, err
}
// GetFuncParamPair returns a pair of function call parameters.
func (p *Param) GetFuncParamPair() (FuncParamKV, error) {
if p == nil {
return FuncParamKV{}, errMissingParameter
}
// This one doesn't need to be cached, it's used only once.
fpp := FuncParamKV{}
err := json.Unmarshal(p.RawMessage, &fpp)
if err != nil {
return FuncParamKV{}, err
}
return fpp, nil
}
// GetBytesHex returns a []byte value of the parameter if
// it is a hex-encoded string.
func (p *Param) GetBytesHex() ([]byte, error) {

42
pkg/services/rpcsrv/params/param_test.go
View file

@ -426,6 +426,48 @@ func TestParamGetFuncParam(t *testing.T) {
require.NotNil(t, err)
}
func TestParamGetFuncParamPair(t *testing.T) {
fp := FuncParam{
Type: smartcontract.MapType,
Value: Param{RawMessage: []byte(`[{"key": {"type": "String", "value": "key1"}, "value": {"type": "Integer", "value": 123}}, {"key": {"type": "String", "value": "key2"}, "value": {"type": "Integer", "value": 456}}]`)},
}
p := Param{RawMessage: []byte(`{"type": "Map", "value": [{"key": {"type": "String", "value": "key1"}, "value": {"type": "Integer", "value": 123}}, {"key": {"type": "String", "value": "key2"}, "value": {"type": "Integer", "value": 456}}]}`)}
newfp, err := p.GetFuncParam()
assert.Equal(t, fp, newfp)
require.NoError(t, err)
kvs, err := newfp.Value.GetArray()
require.NoError(t, err)
p1, err := kvs[0].GetFuncParamPair()
require.NoError(t, err)
fp1Key := FuncParam{
Type: smartcontract.StringType,
Value: Param{RawMessage: []byte(`"key1"`)},
}
fp1Value := FuncParam{
Type: smartcontract.IntegerType,
Value: Param{RawMessage: []byte(`123`)},
}
assert.Equal(t, fp1Key, p1.Key)
assert.Equal(t, fp1Value, p1.Value)
p2, err := kvs[1].GetFuncParamPair()
require.NoError(t, err)
fp2Key := FuncParam{
Type: smartcontract.StringType,
Value: Param{RawMessage: []byte(`"key2"`)},
}
fp2Value := FuncParam{
Type: smartcontract.IntegerType,
Value: Param{RawMessage: []byte(`456`)},
}
assert.Equal(t, fp2Key, p2.Key)
assert.Equal(t, fp2Value, p2.Value)
}
func TestParamGetBytesHex(t *testing.T) {
in := "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7"
inb, _ := hex.DecodeString(in)

181
pkg/services/rpcsrv/params/txBuilder.go
View file

@ -13,6 +13,90 @@ import (
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
)
// ExpandFuncParameterIntoScript pushes provided FuncParam parameter
// into the given buffer.
func ExpandFuncParameterIntoScript(script *io.BinWriter, fp FuncParam) error {
switch fp.Type {
case smartcontract.ByteArrayType:
str, err := fp.Value.GetBytesBase64()
if err != nil {
return err
}
emit.Bytes(script, str)
case smartcontract.SignatureType:
str, err := fp.Value.GetBytesBase64()
if err != nil {
return err
}
emit.Bytes(script, str)
case smartcontract.StringType:
str, err := fp.Value.GetString()
if err != nil {
return err
}
emit.String(script, str)
case smartcontract.Hash160Type:
hash, err := fp.Value.GetUint160FromHex()
if err != nil {
return err
}
emit.Bytes(script, hash.BytesBE())
case smartcontract.Hash256Type:
hash, err := fp.Value.GetUint256()
if err != nil {
return err
}
emit.Bytes(script, hash.BytesBE())
case smartcontract.PublicKeyType:
str, err := fp.Value.GetString()
if err != nil {
return err
}
key, err := keys.NewPublicKeyFromString(string(str))
if err != nil {
return err
}
emit.Bytes(script, key.Bytes())
case smartcontract.IntegerType:
bi, err := fp.Value.GetBigInt()
if err != nil {
return err
}
emit.BigInt(script, bi)
case smartcontract.BoolType:
val, err := fp.Value.GetBoolean() // not GetBooleanStrict(), because that's the way C# code works
if err != nil {
return errors.New("not a bool")
}
emit.Bool(script, val)
case smartcontract.ArrayType:
val, err := fp.Value.GetArray()
if err != nil {
return err
}
err = ExpandArrayIntoScriptAndPack(script, val)
if err != nil {
return err
}
case smartcontract.MapType:
val, err := fp.Value.GetArray()
if err != nil {
return err
}
err = ExpandMapIntoScriptAndPack(script, val)
if err != nil {
return err
}
case smartcontract.AnyType:
if fp.Value.IsNull() || len(fp.Value.RawMessage) == 0 {
emit.Opcodes(script, opcode.PUSHNULL)
}
default:
return fmt.Errorf("parameter type %v is not supported", fp.Type)
}
return script.Err
}
// ExpandArrayIntoScript pushes all FuncParam parameters from the given array
// into the given buffer in the reverse order.
func ExpandArrayIntoScript(script *io.BinWriter, slice []Param) error {
@ -21,74 +105,9 @@ func ExpandArrayIntoScript(script *io.BinWriter, slice []Param) error {
if err != nil {
return err
}
switch fp.Type {
case smartcontract.ByteArrayType:
str, err := fp.Value.GetBytesBase64()
if err != nil {
return err
}
emit.Bytes(script, str)
case smartcontract.SignatureType:
str, err := fp.Value.GetBytesBase64()
if err != nil {
return err
}
emit.Bytes(script, str)
case smartcontract.StringType:
str, err := fp.Value.GetString()
if err != nil {
return err
}
emit.String(script, str)
case smartcontract.Hash160Type:
hash, err := fp.Value.GetUint160FromHex()
if err != nil {
return err
}
emit.Bytes(script, hash.BytesBE())
case smartcontract.Hash256Type:
hash, err := fp.Value.GetUint256()
if err != nil {
return err
}
emit.Bytes(script, hash.BytesBE())
case smartcontract.PublicKeyType:
str, err := fp.Value.GetString()
if err != nil {
return err
}
key, err := keys.NewPublicKeyFromString(string(str))
if err != nil {
return err
}
emit.Bytes(script, key.Bytes())
case smartcontract.IntegerType:
bi, err := fp.Value.GetBigInt()
if err != nil {
return err
}
emit.BigInt(script, bi)
case smartcontract.BoolType:
val, err := fp.Value.GetBoolean() // not GetBooleanStrict(), because that's the way C# code works
if err != nil {
return errors.New("not a bool")
}
emit.Bool(script, val)
case smartcontract.ArrayType:
val, err := fp.Value.GetArray()
if err != nil {
return err
}
err = ExpandArrayIntoScriptAndPack(script, val)
if err != nil {
return err
}
case smartcontract.AnyType:
if fp.Value.IsNull() || len(fp.Value.RawMessage) == 0 {
emit.Opcodes(script, opcode.PUSHNULL)
}
default:
return fmt.Errorf("parameter type %v is not supported", fp.Type)
err = ExpandFuncParameterIntoScript(script, fp)
if err != nil {
return fmt.Errorf("param %d: %w", j, err)
}
}
return script.Err
@ -110,6 +129,32 @@ func ExpandArrayIntoScriptAndPack(script *io.BinWriter, slice []Param) error {
return script.Err
}
// ExpandMapIntoScriptAndPack expands provided array of key-value items into script
// and packs the resulting pairs in the [stackitem.Map].
func ExpandMapIntoScriptAndPack(script *io.BinWriter, slice []Param) error {
if len(slice) == 0 {
emit.Opcodes(script, opcode.NEWMAP)
return script.Err
}
for i := len(slice) - 1; i >= 0; i-- {
pair, err := slice[i].GetFuncParamPair()
if err != nil {
return err
}
err = ExpandFuncParameterIntoScript(script, pair.Value)
if err != nil {
return fmt.Errorf("map value %d: %w", i, err)
}
err = ExpandFuncParameterIntoScript(script, pair.Key)
if err != nil {
return fmt.Errorf("map key %d: %w", i, err)
}
}
emit.Int(script, int64(len(slice)))
emit.Opcodes(script, opcode.PACKMAP)
return script.Err
}
// CreateFunctionInvocationScript creates a script to invoke the given contract with
// the given parameters.
func CreateFunctionInvocationScript(contract util.Uint160, method string, param *Param) ([]byte, error) {

17
pkg/services/rpcsrv/params/tx_builder_test.go
View file

@ -124,6 +124,17 @@ func TestExpandArrayIntoScript(t *testing.T) {
Input: []Param{{RawMessage: []byte(`{"type": "Integer", "value": "` + bi.String() + `"}`)}},
Expected: append([]byte{byte(opcode.PUSHINT256)}, rawInt...),
},
{
Input: []Param{{RawMessage: []byte(`{"type": "Map", "value": [{"key": {"type": "String", "value": "a" }, "value": {"type": "Integer", "value": 1}}, {"key": {"type": "String", "value": "b"}, "value": {"type": "Integer", "value": 2}}]}`)}},
Expected: []byte{
byte(opcode.PUSH2), // value of element #2
byte(opcode.PUSHDATA1), 1, byte('b'), // key of element #2
byte(opcode.PUSH1), // value of element #1
byte(opcode.PUSHDATA1), 1, byte('a'), // key of element #1
byte(opcode.PUSH2), // map len
byte(opcode.PACKMAP),
},
},
}
for _, c := range testCases {
script := io.NewBufBinWriter()
@ -142,6 +153,12 @@ func TestExpandArrayIntoScript(t *testing.T) {
{RawMessage: []byte(`{"type": "Integer", "value": "` +
new(big.Int).Lsh(big.NewInt(1), 255).String() + `"}`)},
},
{
{RawMessage: []byte(`{"type": "Map", "value": [{"key": {"type": "InvalidT", "value": "a" }, "value": {"type": "Integer", "value": 1}}]}`)},
},
{
{RawMessage: []byte(`{"type": "Map", "value": [{"key": {"type": "String", "value": "a" }, "value": {"type": "Integer", "value": "not-an-int"}}]}`)},
},
}
for _, c := range errorCases {
script := io.NewBufBinWriter()