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ibc_module.go
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ibc_module.go
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package transfer
import (
"errors"
"fmt"
"strings"
types2 "github.com/furyaxyz/fuxchain/libs/tendermint/types"
porttypes "github.com/furyaxyz/fuxchain/libs/ibc-go/modules/core/05-port/types"
sdkerrors "github.com/furyaxyz/fuxchain/libs/cosmos-sdk/types/errors"
sdk "github.com/furyaxyz/fuxchain/libs/cosmos-sdk/types"
capabilitytypes "github.com/furyaxyz/fuxchain/libs/cosmos-sdk/x/capability/types"
"github.com/furyaxyz/fuxchain/libs/ibc-go/modules/apps/transfer/keeper"
"github.com/furyaxyz/fuxchain/libs/ibc-go/modules/apps/transfer/types"
channeltypes "github.com/furyaxyz/fuxchain/libs/ibc-go/modules/core/04-channel/types"
host "github.com/furyaxyz/fuxchain/libs/ibc-go/modules/core/24-host"
ibcexported "github.com/furyaxyz/fuxchain/libs/ibc-go/modules/core/exported"
)
var (
_ porttypes.Middleware = IBCModule{}
errNotSupportICS20 = errors.New("not support by ics-20")
)
// NewIBCModule creates a new IBCModule given the keeper
func NewIBCModule(k keeper.Keeper, v2module AppModule) porttypes.Middleware {
return IBCModule{
keeper: k,
v2Module: v2module,
}
}
// OnChanOpenInit implements the IBCModule interface
func (im IBCModule) OnChanOpenInit(
ctx sdk.Context,
order channeltypes.Order,
connectionHops []string,
portID string,
channelID string,
chanCap *capabilitytypes.Capability,
counterparty channeltypes.Counterparty,
version string,
) (string, error) {
if !types2.HigherThanVenus4(ctx.BlockHeight()) {
return im.v2Module.OnChanOpenInit(ctx, order, connectionHops, portID, channelID, chanCap, counterparty, version)
}
if err := ValidateTransferChannelParamsV4(ctx, im.keeper, order, portID, channelID); err != nil {
return "", err
}
if strings.TrimSpace(version) == "" {
version = types.Version
}
if version != types.Version {
return "", sdkerrors.Wrapf(types.ErrInvalidVersion, "got %s, expected %s", version, types.Version)
}
// Claim channel capability passed back by IBC module
if err := im.keeper.ClaimCapability(ctx, chanCap, host.ChannelCapabilityPath(portID, channelID)); err != nil {
return "", err
}
return version, nil
}
// OnChanOpenTry implements the IBCModule interface.
func (im IBCModule) OnChanOpenTry(
ctx sdk.Context,
order channeltypes.Order,
connectionHops []string,
portID,
channelID string,
chanCap *capabilitytypes.Capability,
counterparty channeltypes.Counterparty,
version string,
counterpartyVersion string,
) (string, error) {
if !types2.HigherThanVenus4(ctx.BlockHeight()) {
return im.v2Module.OnChanOpenTry(ctx, order, connectionHops, portID, channelID, chanCap, counterparty, version, counterpartyVersion)
}
if err := ValidateTransferChannelParamsV4(ctx, im.keeper, order, portID, channelID); err != nil {
return "", err
}
if counterpartyVersion != types.Version {
return "", sdkerrors.Wrapf(types.ErrInvalidVersion, "invalid counterparty version: got: %s, expected %s", counterpartyVersion, types.Version)
}
// OpenTry must claim the channelCapability that IBC passes into the callback
if err := im.keeper.ClaimCapability(ctx, chanCap, host.ChannelCapabilityPath(portID, channelID)); err != nil {
return "", err
}
return types.Version, nil
}
// OnChanOpenAck implements the IBCModule interface
func (im IBCModule) OnChanOpenAck(
ctx sdk.Context,
portID,
channelID string,
_ string,
counterpartyVersion string,
) error {
if counterpartyVersion != types.Version {
return sdkerrors.Wrapf(types.ErrInvalidVersion, "invalid counterparty version: %s, expected %s", counterpartyVersion, types.Version)
}
return nil
}
// OnChanOpenConfirm implements the IBCModule interface
func (im IBCModule) OnChanOpenConfirm(
ctx sdk.Context,
portID,
channelID string,
) error {
return nil
}
// OnChanCloseInit implements the IBCModule interface
func (im IBCModule) OnChanCloseInit(
ctx sdk.Context,
portID,
channelID string,
) error {
// Disallow user-initiated channel closing for transfer channels
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "user cannot close channel")
}
// OnChanCloseConfirm implements the IBCModule interface
func (im IBCModule) OnChanCloseConfirm(
ctx sdk.Context,
portID,
channelID string,
) error {
return nil
}
// OnRecvPacket implements the IBCModule interface. A successful acknowledgement
// is returned if the packet data is successfully decoded and the receive application
// logic returns without error.
func (im IBCModule) OnRecvPacket(
ctx sdk.Context,
packet channeltypes.Packet,
relayer sdk.AccAddress,
) ibcexported.Acknowledgement {
if !types2.HigherThanVenus4(ctx.BlockHeight()) {
return im.v2Module.OnRecvPacket(ctx, packet, relayer)
}
ack := channeltypes.NewResultAcknowledgement([]byte{byte(1)})
var data types.FungibleTokenPacketData
var ackErr error
if err := types.ModuleCdc.UnmarshalJSON(packet.GetData(), &data); err != nil {
ackErr = sdkerrors.Wrapf(sdkerrors.ErrInvalidType, "cannot unmarshal ICS-20 transfer packet data")
ack = channeltypes.NewErrorAcknowledgementV4(ackErr)
}
// only attempt the application logic if the packet data
// was successfully decoded
if ack.Success() {
err := im.keeper.OnRecvPacket(ctx, packet, data)
if err != nil {
ack = channeltypes.NewErrorAcknowledgementV4(err)
ackErr = err
}
}
eventAttributes := []sdk.Attribute{
sdk.NewAttribute(sdk.AttributeKeyModule, types.ModuleName),
sdk.NewAttribute(sdk.AttributeKeySender, data.Sender),
sdk.NewAttribute(types.AttributeKeyReceiver, data.Receiver),
sdk.NewAttribute(types.AttributeKeyDenom, data.Denom),
sdk.NewAttribute(types.AttributeKeyAmount, data.Amount),
sdk.NewAttribute(types.AttributeKeyAckSuccess, fmt.Sprintf("%t", ack.Success())),
}
if ackErr != nil {
eventAttributes = append(eventAttributes, sdk.NewAttribute(types.AttributeKeyAckError, ackErr.Error()))
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypePacket,
eventAttributes...,
),
)
// NOTE: acknowledgement will be written synchronously during IBC handler execution.
return ack
}
// OnAcknowledgementPacket implements the IBCModule interface
func (im IBCModule) OnAcknowledgementPacket(
ctx sdk.Context,
packet channeltypes.Packet,
acknowledgement []byte,
relayer sdk.AccAddress,
) error {
if !types2.HigherThanVenus4(ctx.BlockHeight()) {
return im.v2Module.OnAcknowledgementPacket(ctx, packet, acknowledgement, relayer)
}
var ack channeltypes.Acknowledgement
if err := types.Marshal.GetProtocMarshal().UnmarshalJSON(acknowledgement, &ack); err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "cannot unmarshal ICS-20 transfer packet acknowledgement: %v", err)
}
var data types.FungibleTokenPacketData
if err := types.ModuleCdc.UnmarshalJSON(packet.GetData(), &data); err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "cannot unmarshal ICS-20 transfer packet data: %s", err.Error())
}
if err := im.keeper.OnAcknowledgementPacket(ctx, packet, data, ack); err != nil {
return err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypePacket,
sdk.NewAttribute(sdk.AttributeKeyModule, types.ModuleName),
sdk.NewAttribute(sdk.AttributeKeySender, data.Sender),
sdk.NewAttribute(types.AttributeKeyReceiver, data.Receiver),
sdk.NewAttribute(types.AttributeKeyDenom, data.Denom),
sdk.NewAttribute(types.AttributeKeyAmount, data.Amount),
sdk.NewAttribute(types.AttributeKeyAck, ack.String()),
),
)
switch resp := ack.Response.(type) {
case *channeltypes.Acknowledgement_Result:
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypePacket,
sdk.NewAttribute(types.AttributeKeyAckSuccess, string(resp.Result)),
),
)
case *channeltypes.Acknowledgement_Error:
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypePacket,
sdk.NewAttribute(types.AttributeKeyAckError, resp.Error),
),
)
}
return nil
}
// OnTimeoutPacket implements the IBCModule interface
func (im IBCModule) OnTimeoutPacket(
ctx sdk.Context,
packet channeltypes.Packet,
relayer sdk.AccAddress,
) error {
if !types2.HigherThanVenus4(ctx.BlockHeight()) {
return im.v2Module.OnTimeoutPacket(ctx, packet, relayer)
}
var data types.FungibleTokenPacketData
if err := types.ModuleCdc.UnmarshalJSON(packet.GetData(), &data); err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "cannot unmarshal ICS-20 transfer packet data: %s", err.Error())
}
// refund tokens
if err := im.keeper.OnTimeoutPacket(ctx, packet, data); err != nil {
return err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeTimeout,
sdk.NewAttribute(sdk.AttributeKeyModule, types.ModuleName),
sdk.NewAttribute(types.AttributeKeyRefundReceiver, data.Sender),
sdk.NewAttribute(types.AttributeKeyRefundDenom, data.Denom),
sdk.NewAttribute(types.AttributeKeyRefundAmount, data.Amount),
),
)
return nil
}
// IBCModule implements the ICS26 interface for transfer given the transfer keeper.
type IBCModule struct {
keeper keeper.Keeper
v2Module AppModule
}
func (im IBCModule) SendPacket(ctx sdk.Context, chanCap *capabilitytypes.Capability, packet ibcexported.PacketI) error {
return errNotSupportICS20
}
func (im IBCModule) WriteAcknowledgement(ctx sdk.Context, chanCap *capabilitytypes.Capability, packet ibcexported.PacketI, ack ibcexported.Acknowledgement) error {
return errNotSupportICS20
}
func (im IBCModule) GetAppVersion(ctx sdk.Context, portID, channelID string) (string, bool) {
panic(errNotSupportICS20)
}
func (im IBCModule) NegotiateAppVersion(ctx sdk.Context, order channeltypes.Order, connectionID string, portID string, counterparty channeltypes.Counterparty, proposedVersion string) (version string, err error) {
return "", errNotSupportICS20
}