mirror of https://github.com/poanetwork/gecko.git
Updated Export Tx to support change addresses
This commit is contained in:
parent
42b5b137d4
commit
a7f2a887ca
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@ -4,12 +4,9 @@
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package avm
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import (
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"errors"
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"github.com/ava-labs/gecko/chains/atomic"
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"github.com/ava-labs/gecko/database"
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"github.com/ava-labs/gecko/database/versiondb"
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"github.com/ava-labs/gecko/ids"
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"github.com/ava-labs/gecko/snow"
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"github.com/ava-labs/gecko/snow/choices"
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"github.com/ava-labs/gecko/vms/components/ava"
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@ -17,47 +14,22 @@ import (
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"github.com/ava-labs/gecko/vms/components/verify"
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)
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// ExportTx is a transaction that exports an asset to another blockchain.
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// ExportTx is the basis of all transactions.
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type ExportTx struct {
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BaseTx `serialize:"true"`
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Outs []*ava.TransferableOutput `serialize:"true"` // The outputs of this transaction
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Ins []*ava.TransferableInput `serialize:"true"` // The inputs to this transaction
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ExportOuts []*ava.TransferableOutput `serialize:"true"` // The outputs this transaction is sending to the other chain
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}
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// InputUTXOs track which UTXOs this transaction is consuming.
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func (t *ExportTx) InputUTXOs() []*ava.UTXOID {
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utxos := t.BaseTx.InputUTXOs()
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for _, in := range t.Ins {
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utxos = append(utxos, &in.UTXOID)
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}
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return utxos
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}
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// AssetIDs returns the IDs of the assets this transaction depends on
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func (t *ExportTx) AssetIDs() ids.Set {
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assets := t.BaseTx.AssetIDs()
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for _, in := range t.Ins {
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assets.Add(in.AssetID())
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}
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return assets
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}
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var (
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errNoExportInputs = errors.New("no export inputs")
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)
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// SyntacticVerify that this transaction is well-formed.
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func (t *ExportTx) SyntacticVerify(ctx *snow.Context, c codec.Codec, numFxs int) error {
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func (t *ExportTx) SyntacticVerify(ctx *snow.Context, c codec.Codec, _ int) error {
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switch {
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case t == nil:
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return errNilTx
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case len(t.Ins) == 0:
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return errNoExportInputs
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}
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if err := t.BaseTx.SyntacticVerify(ctx, c, numFxs); err != nil {
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return err
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case t.NetID != ctx.NetworkID:
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return errWrongNetworkID
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case !t.BCID.Equals(ctx.ChainID):
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return errWrongChainID
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}
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fc := ava.NewFlowChecker()
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@ -71,6 +43,16 @@ func (t *ExportTx) SyntacticVerify(ctx *snow.Context, c codec.Codec, numFxs int)
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return errOutputsNotSorted
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}
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for _, out := range t.ExportOuts {
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if err := out.Verify(); err != nil {
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return err
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}
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fc.Produce(out.AssetID(), out.Output().Amount())
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}
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if !ava.IsSortedTransferableOutputs(t.ExportOuts, c) {
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return errOutputsNotSorted
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}
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for _, in := range t.Ins {
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if err := in.Verify(); err != nil {
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return err
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@ -83,18 +65,17 @@ func (t *ExportTx) SyntacticVerify(ctx *snow.Context, c codec.Codec, numFxs int)
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// TODO: Add the Tx fee to the produced side
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return fc.Verify()
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}
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// SemanticVerify that this transaction is well-formed.
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func (t *ExportTx) SemanticVerify(vm *VM, uTx *UniqueTx, creds []verify.Verifiable) error {
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if err := t.BaseTx.SemanticVerify(vm, uTx, creds); err != nil {
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if err := fc.Verify(); err != nil {
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return err
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}
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offset := len(t.BaseTx.Ins)
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return t.Metadata.Verify()
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}
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// SemanticVerify that this transaction is valid to be spent.
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func (t *ExportTx) SemanticVerify(vm *VM, uTx *UniqueTx, creds []verify.Verifiable) error {
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for i, in := range t.Ins {
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cred := creds[i+offset]
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cred := creds[i]
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fxIndex, err := vm.getFx(cred)
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if err != nil {
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@ -112,9 +93,6 @@ func (t *ExportTx) SemanticVerify(vm *VM, uTx *UniqueTx, creds []verify.Verifiab
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if !utxoAssetID.Equals(inAssetID) {
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return errAssetIDMismatch
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}
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if !utxoAssetID.Equals(vm.ava) {
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return errWrongAssetID
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}
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if !vm.verifyFxUsage(fxIndex, inAssetID) {
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return errIncompatibleFx
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@ -124,6 +102,13 @@ func (t *ExportTx) SemanticVerify(vm *VM, uTx *UniqueTx, creds []verify.Verifiab
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return err
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}
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}
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for _, out := range t.ExportOuts {
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if !out.AssetID().Equals(vm.ava) {
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return errWrongAssetID
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}
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}
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return nil
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}
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@ -137,11 +122,11 @@ func (t *ExportTx) ExecuteWithSideEffects(vm *VM, batch database.Batch) error {
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vsmDB := versiondb.New(smDB)
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state := ava.NewPrefixedState(vsmDB, vm.codec)
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for i, out := range t.Outs {
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for i, out := range t.ExportOuts {
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utxo := &ava.UTXO{
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UTXOID: ava.UTXOID{
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TxID: txID,
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OutputIndex: uint32(len(t.BaseTx.Outs) + i),
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OutputIndex: uint32(len(t.Outs) + i),
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},
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Asset: ava.Asset{ID: out.AssetID()},
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Out: out.Out,
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@ -31,10 +31,6 @@ func TestExportTxSerialization(t *testing.T) {
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0xdd, 0xdd, 0xdd, 0xdd, 0xcc, 0xcc, 0xcc, 0xcc,
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0xbb, 0xbb, 0xbb, 0xbb, 0xaa, 0xaa, 0xaa, 0xaa,
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0x99, 0x99, 0x99, 0x99, 0x88, 0x88, 0x88, 0x88,
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// number of base outs:
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0x00, 0x00, 0x00, 0x00,
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// number of base inputs:
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0x00, 0x00, 0x00, 0x00,
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// number of outs:
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0x00, 0x00, 0x00, 0x00,
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// number of inputs:
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@ -60,18 +56,18 @@ func TestExportTxSerialization(t *testing.T) {
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0x00, 0x00, 0x00, 0x01,
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// sig index[0]:
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0x00, 0x00, 0x00, 0x00,
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// number of exported outs:
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0x00, 0x00, 0x00, 0x00,
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}
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tx := &Tx{UnsignedTx: &ExportTx{
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BaseTx: BaseTx{
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NetID: 2,
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BCID: ids.NewID([32]byte{
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0xff, 0xff, 0xff, 0xff, 0xee, 0xee, 0xee, 0xee,
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0xdd, 0xdd, 0xdd, 0xdd, 0xcc, 0xcc, 0xcc, 0xcc,
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0xbb, 0xbb, 0xbb, 0xbb, 0xaa, 0xaa, 0xaa, 0xaa,
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0x99, 0x99, 0x99, 0x99, 0x88, 0x88, 0x88, 0x88,
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}),
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},
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tx := &Tx{UnsignedTx: &ExportTx{BaseTx: BaseTx{
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NetID: 2,
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BCID: ids.NewID([32]byte{
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0xff, 0xff, 0xff, 0xff, 0xee, 0xee, 0xee, 0xee,
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0xdd, 0xdd, 0xdd, 0xdd, 0xcc, 0xcc, 0xcc, 0xcc,
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0xbb, 0xbb, 0xbb, 0xbb, 0xaa, 0xaa, 0xaa, 0xaa,
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0x99, 0x99, 0x99, 0x99, 0x88, 0x88, 0x88, 0x88,
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}),
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Ins: []*ava.TransferableInput{&ava.TransferableInput{
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UTXOID: ava.UTXOID{TxID: ids.NewID([32]byte{
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0x0f, 0x2f, 0x4f, 0x6f, 0x8e, 0xae, 0xce, 0xee,
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@ -90,7 +86,7 @@ func TestExportTxSerialization(t *testing.T) {
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Input: secp256k1fx.Input{SigIndices: []uint32{0}},
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},
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}},
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}}
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}}}
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c := codec.NewDefault()
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c.RegisterType(&BaseTx{})
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@ -161,19 +157,19 @@ func TestIssueExportTx(t *testing.T) {
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BaseTx: BaseTx{
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NetID: networkID,
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BCID: chainID,
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Ins: []*ava.TransferableInput{&ava.TransferableInput{
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UTXOID: ava.UTXOID{
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TxID: avaID,
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OutputIndex: 1,
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},
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Asset: ava.Asset{ID: avaID},
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In: &secp256k1fx.TransferInput{
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Amt: 50000,
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Input: secp256k1fx.Input{SigIndices: []uint32{0}},
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},
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}},
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},
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Ins: []*ava.TransferableInput{&ava.TransferableInput{
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UTXOID: ava.UTXOID{
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TxID: avaID,
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OutputIndex: 1,
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},
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Asset: ava.Asset{ID: avaID},
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In: &secp256k1fx.TransferInput{
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Amt: 50000,
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Input: secp256k1fx.Input{SigIndices: []uint32{0}},
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},
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}},
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Outs: []*ava.TransferableOutput{&ava.TransferableOutput{
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ExportOuts: []*ava.TransferableOutput{&ava.TransferableOutput{
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Asset: ava.Asset{ID: avaID},
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Out: &secp256k1fx.TransferOutput{
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Amt: 50000,
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@ -297,19 +293,19 @@ func TestClearForceAcceptedExportTx(t *testing.T) {
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BaseTx: BaseTx{
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NetID: networkID,
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BCID: chainID,
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Ins: []*ava.TransferableInput{&ava.TransferableInput{
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UTXOID: ava.UTXOID{
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TxID: avaID,
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OutputIndex: 1,
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},
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Asset: ava.Asset{ID: avaID},
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In: &secp256k1fx.TransferInput{
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Amt: 50000,
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Input: secp256k1fx.Input{SigIndices: []uint32{0}},
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},
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}},
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},
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Ins: []*ava.TransferableInput{&ava.TransferableInput{
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UTXOID: ava.UTXOID{
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TxID: avaID,
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OutputIndex: 1,
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},
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Asset: ava.Asset{ID: avaID},
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In: &secp256k1fx.TransferInput{
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Amt: 50000,
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Input: secp256k1fx.Input{SigIndices: []uint32{0}},
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},
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}},
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Outs: []*ava.TransferableOutput{&ava.TransferableOutput{
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ExportOuts: []*ava.TransferableOutput{&ava.TransferableOutput{
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Asset: ava.Asset{ID: avaID},
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Out: &secp256k1fx.TransferOutput{
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Amt: 50000,
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