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keeper.go
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keeper.go
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package keeper
import (
porttypes "github.com/cosmos/ibc-go/v6/modules/core/05-port/types"
"github.com/cosmos/cosmos-sdk/codec"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
capabilitykeeper "github.com/cosmos/cosmos-sdk/x/capability/keeper"
capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
host "github.com/cosmos/ibc-go/v6/modules/core/24-host"
"github.com/sideprotocol/ibcswap/v6/modules/apps/100-atomic-swap/types"
"github.com/tendermint/tendermint/libs/log"
)
// Keeper defines the IBC Swap keeper
type Keeper struct {
storeKey storetypes.StoreKey
cdc codec.BinaryCodec
paramSpace paramtypes.Subspace
ics4Wrapper porttypes.ICS4Wrapper
channelKeeper types.ChannelKeeper
portKeeper types.PortKeeper
authKeeper types.AccountKeeper
bankKeeper types.BankKeeper
scopedKeeper capabilitykeeper.ScopedKeeper
}
// NewKeeper creates a new IBC transfer Keeper instance
func NewKeeper(
cdc codec.BinaryCodec, key storetypes.StoreKey, paramSpace paramtypes.Subspace,
ics4Wrapper porttypes.ICS4Wrapper, channelKeeper types.ChannelKeeper, portKeeper types.PortKeeper,
authKeeper types.AccountKeeper, bankKeeper types.BankKeeper, scopedKeeper capabilitykeeper.ScopedKeeper,
) Keeper {
// ensure ibc transfer module account is set
if addr := authKeeper.GetModuleAddress(types.ModuleName); addr == nil {
panic("the IBC swap module account has not been set")
}
// set KeyTable if it has not already been set
if !paramSpace.HasKeyTable() {
paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
}
return Keeper{
cdc: cdc,
storeKey: key,
paramSpace: paramSpace,
ics4Wrapper: ics4Wrapper,
channelKeeper: channelKeeper,
portKeeper: portKeeper,
authKeeper: authKeeper,
bankKeeper: bankKeeper,
scopedKeeper: scopedKeeper,
}
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "x/"+host.ModuleName+"-"+types.ModuleName)
}
// IsBound checks if the transfer module is already bound to the desired port
func (k Keeper) IsBound(ctx sdk.Context, portID string) bool {
_, ok := k.scopedKeeper.GetCapability(ctx, host.PortPath(portID))
return ok
}
// BindPort defines a wrapper function for the ort Keeper's function in
// order to expose it to module's InitGenesis function
func (k Keeper) BindPort(ctx sdk.Context, portID string) error {
cap := k.portKeeper.BindPort(ctx, portID)
return k.ClaimCapability(ctx, cap, host.PortPath(portID))
}
// GetPort returns the portID for the swap module. Used in ExportGenesis
func (k Keeper) GetPort(ctx sdk.Context) string {
store := ctx.KVStore(k.storeKey)
return string(store.Get(types.PortKey))
}
// SetPort sets the portID for the swap module. Used in InitGenesis
func (k Keeper) SetPort(ctx sdk.Context, portID string) {
store := ctx.KVStore(k.storeKey)
store.Set(types.PortKey, []byte(portID))
}
// AuthenticateCapability wraps the scopedKeeper's AuthenticateCapability function
func (k Keeper) AuthenticateCapability(ctx sdk.Context, cap *capabilitytypes.Capability, name string) bool {
return k.scopedKeeper.AuthenticateCapability(ctx, cap, name)
}
// ClaimCapability allows the swap module that can claim a capability that IBC module
// passes to it
func (k Keeper) ClaimCapability(ctx sdk.Context, cap *capabilitytypes.Capability, name string) error {
return k.scopedKeeper.ClaimCapability(ctx, cap, name)
}