forked from TrueCloudLab/neoneo-go
state: implement marshalers for oracle-related state
This commit is contained in:
Evgenii Stratonikov
parent
30526046e7
commit
ca1b8a7df0
2 changed files with 350 additions and 0 deletions
225
pkg/core/native/oracle_types.go
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225
pkg/core/native/oracle_types.go
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package native
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import (
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"crypto/elliptic"
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"errors"
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"math/big"
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"unicode/utf8"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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// IDList is a list of oracle request IDs.
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type IDList []uint64
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// NodeList represents list or oracle nodes.
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type NodeList keys.PublicKeys
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// OracleRequest represents oracle request.
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type OracleRequest struct {
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OriginalTxID util.Uint256
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GasForResponse uint64
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URL string
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Filter *string
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CallbackContract util.Uint160
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CallbackMethod string
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UserData []byte
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}
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// Bytes return l serizalized to a byte-slice.
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func (l IDList) Bytes() []byte {
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w := io.NewBufBinWriter()
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l.EncodeBinary(w.BinWriter)
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return w.Bytes()
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}
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// EncodeBinary implements io.Serializable.
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func (l IDList) EncodeBinary(w *io.BinWriter) {
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stackitem.EncodeBinaryStackItem(l.toStackItem(), w)
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}
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// DecodeBinary implements io.Serializable.
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func (l *IDList) DecodeBinary(r *io.BinReader) {
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item := stackitem.DecodeBinaryStackItem(r)
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if r.Err != nil || item == nil {
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return
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}
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r.Err = l.fromStackItem(item)
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}
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func (l IDList) toStackItem() stackitem.Item {
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arr := make([]stackitem.Item, len(l))
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for i := range l {
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arr[i] = stackitem.NewBigInteger(new(big.Int).SetUint64(l[i]))
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}
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return stackitem.NewArray(arr)
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}
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func (l *IDList) fromStackItem(it stackitem.Item) error {
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arr, ok := it.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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*l = make(IDList, len(arr))
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for i := range arr {
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bi, err := arr[i].TryInteger()
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if err != nil {
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return err
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}
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(*l)[i] = bi.Uint64()
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}
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return nil
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}
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// Bytes return l serizalized to a byte-slice.
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func (l NodeList) Bytes() []byte {
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w := io.NewBufBinWriter()
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l.EncodeBinary(w.BinWriter)
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return w.Bytes()
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}
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// EncodeBinary implements io.Serializable.
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func (l NodeList) EncodeBinary(w *io.BinWriter) {
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stackitem.EncodeBinaryStackItem(l.toStackItem(), w)
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}
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// DecodeBinary implements io.Serializable.
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func (l *NodeList) DecodeBinary(r *io.BinReader) {
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item := stackitem.DecodeBinaryStackItem(r)
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if r.Err != nil || item == nil {
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return
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}
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r.Err = l.fromStackItem(item)
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}
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func (l NodeList) toStackItem() stackitem.Item {
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arr := make([]stackitem.Item, len(l))
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for i := range l {
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arr[i] = stackitem.NewByteArray(l[i].Bytes())
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}
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return stackitem.NewArray(arr)
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}
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func (l *NodeList) fromStackItem(it stackitem.Item) error {
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arr, ok := it.Value().([]stackitem.Item)
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if !ok {
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return errors.New("not an array")
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}
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*l = make(NodeList, len(arr))
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for i := range arr {
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bs, err := arr[i].TryBytes()
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if err != nil {
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return err
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}
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pub, err := keys.NewPublicKeyFromBytes(bs, elliptic.P256())
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if err != nil {
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return err
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}
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(*l)[i] = pub
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}
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return nil
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}
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// Bytes return o serizalized to a byte-slice.
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func (o *OracleRequest) Bytes() []byte {
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w := io.NewBufBinWriter()
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o.EncodeBinary(w.BinWriter)
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return w.Bytes()
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}
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// EncodeBinary implements io.Serializable.
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func (o *OracleRequest) EncodeBinary(w *io.BinWriter) {
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stackitem.EncodeBinaryStackItem(o.toStackItem(), w)
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}
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// DecodeBinary implements io.Serializable.
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func (o *OracleRequest) DecodeBinary(r *io.BinReader) {
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item := stackitem.DecodeBinaryStackItem(r)
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if r.Err != nil || item == nil {
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return
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}
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r.Err = o.fromStackItem(item)
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}
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func (o *OracleRequest) toStackItem() stackitem.Item {
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filter := stackitem.Item(stackitem.Null{})
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if o.Filter != nil {
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filter = stackitem.Make(*o.Filter)
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}
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return stackitem.NewArray([]stackitem.Item{
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stackitem.NewByteArray(o.OriginalTxID.BytesBE()),
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stackitem.NewBigInteger(new(big.Int).SetUint64(o.GasForResponse)),
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stackitem.Make(o.URL),
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filter,
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stackitem.NewByteArray(o.CallbackContract.BytesBE()),
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stackitem.Make(o.CallbackMethod),
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stackitem.NewByteArray(o.UserData),
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})
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}
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func (o *OracleRequest) fromStackItem(it stackitem.Item) error {
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arr, ok := it.Value().([]stackitem.Item)
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if !ok || len(arr) < 7 {
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return errors.New("not an array of needed length")
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}
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bs, err := arr[0].TryBytes()
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if err != nil {
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return err
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}
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o.OriginalTxID, err = util.Uint256DecodeBytesBE(bs)
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if err != nil {
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return err
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}
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gas, err := arr[1].TryInteger()
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if err != nil {
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return err
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}
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o.GasForResponse = gas.Uint64()
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s, isNull, ok := itemToString(arr[2])
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if !ok || isNull {
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return errors.New("invalid URL")
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}
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o.URL = s
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s, isNull, ok = itemToString(arr[3])
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if !ok {
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return errors.New("invalid filter")
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} else if !isNull {
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filter := s
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o.Filter = &filter
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}
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bs, err = arr[4].TryBytes()
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if err != nil {
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return err
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}
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o.CallbackContract, err = util.Uint160DecodeBytesBE(bs)
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if err != nil {
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return err
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}
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o.CallbackMethod, isNull, ok = itemToString(arr[5])
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if !ok || isNull {
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return errors.New("invalid callback method")
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}
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o.UserData, err = arr[6].TryBytes()
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return err
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}
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func itemToString(it stackitem.Item) (string, bool, bool) {
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_, ok := it.(stackitem.Null)
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if ok {
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return "", true, true
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}
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bs, err := it.TryBytes()
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if err != nil || !utf8.Valid(bs) {
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return "", false, false
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}
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return string(bs), false, true
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}
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125
pkg/core/native/oracle_types_test.go
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125
pkg/core/native/oracle_types_test.go
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@ -0,0 +1,125 @@
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package native
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import (
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"math/big"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/internal/random"
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"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/stretchr/testify/require"
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)
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func getInvalidTestFunc(actual io.Serializable, value interface{}) func(t *testing.T) {
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return func(t *testing.T) {
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w := io.NewBufBinWriter()
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it := stackitem.Make(value)
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stackitem.EncodeBinaryStackItem(it, w.BinWriter)
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require.NoError(t, w.Err)
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require.Error(t, testserdes.DecodeBinary(w.Bytes(), actual))
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}
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}
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func TestIDList_EncodeBinary(t *testing.T) {
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t.Run("Valid", func(t *testing.T) {
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l := &IDList{1, 4, 5}
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testserdes.EncodeDecodeBinary(t, l, new(IDList))
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})
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t.Run("Invalid", func(t *testing.T) {
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t.Run("NotArray", getInvalidTestFunc(new(IDList), []byte{}))
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t.Run("InvalidElement", getInvalidTestFunc(new(IDList), []stackitem.Item{stackitem.Null{}}))
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t.Run("NotStackItem", func(t *testing.T) {
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require.Error(t, testserdes.DecodeBinary([]byte{0x77}, new(IDList)))
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})
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})
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}
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func TestNodeList_EncodeBinary(t *testing.T) {
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priv, err := keys.NewPrivateKey()
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require.NoError(t, err)
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pub := priv.PublicKey()
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t.Run("Valid", func(t *testing.T) {
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l := &NodeList{pub}
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testserdes.EncodeDecodeBinary(t, l, new(NodeList))
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})
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t.Run("Invalid", func(t *testing.T) {
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t.Run("NotArray", getInvalidTestFunc(new(NodeList), []byte{}))
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t.Run("InvalidElement", getInvalidTestFunc(new(NodeList), []stackitem.Item{stackitem.Null{}}))
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t.Run("InvalidKey", getInvalidTestFunc(new(NodeList),
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[]stackitem.Item{stackitem.NewByteArray([]byte{0x9})}))
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t.Run("NotStackItem", func(t *testing.T) {
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require.Error(t, testserdes.DecodeBinary([]byte{0x77}, new(NodeList)))
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})
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})
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}
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func TestOracleRequest_EncodeBinary(t *testing.T) {
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t.Run("Valid", func(t *testing.T) {
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r := &OracleRequest{
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OriginalTxID: random.Uint256(),
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GasForResponse: 12345,
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URL: "https://get.value",
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CallbackContract: random.Uint160(),
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CallbackMethod: "method",
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UserData: []byte{1, 2, 3},
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}
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testserdes.EncodeDecodeBinary(t, r, new(OracleRequest))
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t.Run("WithFilter", func(t *testing.T) {
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s := "filter"
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r.Filter = &s
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testserdes.EncodeDecodeBinary(t, r, new(OracleRequest))
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})
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})
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t.Run("Invalid", func(t *testing.T) {
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w := io.NewBufBinWriter()
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t.Run("NotArray", func(t *testing.T) {
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w.Reset()
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it := stackitem.NewByteArray([]byte{})
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stackitem.EncodeBinaryStackItem(it, w.BinWriter)
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require.Error(t, testserdes.DecodeBinary(w.Bytes(), new(OracleRequest)))
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})
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t.Run("NotStackItem", func(t *testing.T) {
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w.Reset()
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require.Error(t, testserdes.DecodeBinary([]byte{0x77}, new(OracleRequest)))
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})
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items := []stackitem.Item{
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stackitem.NewByteArray(random.Uint256().BytesBE()),
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stackitem.NewBigInteger(big.NewInt(123)),
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stackitem.Make("url"),
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stackitem.Null{},
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stackitem.NewByteArray(random.Uint160().BytesBE()),
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stackitem.Make("method"),
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stackitem.NewByteArray([]byte{1, 2, 3}),
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}
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arrItem := stackitem.NewArray(items)
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runInvalid := func(i int, elem stackitem.Item) func(t *testing.T) {
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return func(t *testing.T) {
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w.Reset()
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before := items[i]
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items[i] = elem
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stackitem.EncodeBinaryStackItem(arrItem, w.BinWriter)
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items[i] = before
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require.Error(t, testserdes.DecodeBinary(w.Bytes(), new(OracleRequest)))
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}
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}
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t.Run("TxID", func(t *testing.T) {
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t.Run("Type", runInvalid(0, stackitem.NewMap()))
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t.Run("Length", runInvalid(0, stackitem.NewByteArray([]byte{0, 1, 2})))
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})
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t.Run("Gas", runInvalid(1, stackitem.NewMap()))
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t.Run("URL", runInvalid(2, stackitem.NewMap()))
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t.Run("Filter", runInvalid(3, stackitem.NewMap()))
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t.Run("Contract", func(t *testing.T) {
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t.Run("Type", runInvalid(4, stackitem.NewMap()))
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t.Run("Length", runInvalid(4, stackitem.NewByteArray([]byte{0, 1, 2})))
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})
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t.Run("Method", runInvalid(5, stackitem.NewMap()))
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t.Run("UserData", runInvalid(6, stackitem.NewMap()))
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})
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}
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