/
ibc_middleware.go
80 lines (68 loc) · 2.35 KB
/
ibc_middleware.go
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package claims
import (
sdk "github.com/cosmos/cosmos-sdk/types"
capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
channeltypes "github.com/cosmos/ibc-go/v3/modules/core/04-channel/types"
porttypes "github.com/cosmos/ibc-go/v3/modules/core/05-port/types"
"github.com/cosmos/ibc-go/v3/modules/core/exported"
"github.com/evmos/evmos/v8/ibc"
"github.com/evmos/evmos/v8/x/claims/keeper"
)
var _ porttypes.Middleware = &IBCMiddleware{}
// IBCMiddleware implements the ICS26 callbacks for the transfer middleware given
// the claim keeper and the underlying application.
type IBCMiddleware struct {
*ibc.Module
keeper keeper.Keeper
}
// NewIBCMiddleware creates a new IBCMiddleware given the keeper and underlying application
func NewIBCMiddleware(k keeper.Keeper, app porttypes.IBCModule) IBCMiddleware {
return IBCMiddleware{
Module: ibc.NewModule(app),
keeper: k,
}
}
// OnRecvPacket implements the IBCModule interface.
// If fees are not enabled, this callback will default to the ibc-core packet callback.
func (im IBCMiddleware) OnRecvPacket(
ctx sdk.Context,
packet channeltypes.Packet,
relayer sdk.AccAddress,
) exported.Acknowledgement {
ack := im.Module.OnRecvPacket(ctx, packet, relayer)
// return if the acknowledgement is an error ACK
if !ack.Success() {
return ack
}
return im.keeper.OnRecvPacket(ctx, packet, ack)
}
// OnAcknowledgementPacket implements the IBCModule interface
// If fees are not enabled, this callback will default to the ibc-core packet callback.
func (im IBCMiddleware) OnAcknowledgementPacket(
ctx sdk.Context,
packet channeltypes.Packet,
acknowledgement []byte,
relayer sdk.AccAddress,
) error {
if err := im.Module.OnAcknowledgementPacket(ctx, packet, acknowledgement, relayer); err != nil {
return err
}
return im.keeper.OnAcknowledgementPacket(ctx, packet, acknowledgement)
}
// SendPacket implements the ICS4 Wrapper interface
func (im IBCMiddleware) SendPacket(
ctx sdk.Context,
chanCap *capabilitytypes.Capability,
packet exported.PacketI,
) error {
return im.keeper.SendPacket(ctx, chanCap, packet)
}
// WriteAcknowledgement implements the ICS4 Wrapper interface
func (im IBCMiddleware) WriteAcknowledgement(
ctx sdk.Context,
chanCap *capabilitytypes.Capability,
packet exported.PacketI,
ack exported.Acknowledgement,
) error {
return im.keeper.WriteAcknowledgement(ctx, chanCap, packet, ack)
}