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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package hook | ||
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| import ( | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
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| ibctransfertypes "github.com/cosmos/ibc-go/v7/modules/apps/transfer/types" | ||
| channeltypes "github.com/cosmos/ibc-go/v7/modules/core/04-channel/types" | ||
|
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| ophosttypes "github.com/initia-labs/OPinit/x/ophost/types" | ||
| ) | ||
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| var _ ophosttypes.BridgeHook = BridgeHook{} | ||
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| type BridgeHook struct { | ||
| IBCChannelKeeper ChannelKeeper | ||
| IBCPermKeeper PermKeeper | ||
| } | ||
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| type ChannelKeeper interface { | ||
| GetNextSequenceSend(ctx sdk.Context, portID, channelID string) (uint64, bool) | ||
| } | ||
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| type PermKeeper interface { | ||
| SetChannelRelayer(ctx sdk.Context, channel string, relayer sdk.AccAddress) | ||
| } | ||
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| func NewBridgeHook(channelKeeper ChannelKeeper, permKeeper PermKeeper) BridgeHook { | ||
| return BridgeHook{channelKeeper, permKeeper} | ||
| } | ||
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| func (h BridgeHook) BridgeCreated( | ||
| ctx sdk.Context, | ||
| bridgeId uint64, | ||
| bridgeConfig ophosttypes.BridgeConfig, | ||
| ) error { | ||
| channelID := string(bridgeConfig.Metadata) | ||
| if channeltypes.IsValidChannelID(channelID) { | ||
| if seq, ok := h.IBCChannelKeeper.GetNextSequenceSend(ctx, ibctransfertypes.PortID, channelID); !ok { | ||
| return channeltypes.ErrChannelNotFound.Wrap("failed to register permissioned relayer") | ||
| } else if seq != 1 { | ||
| return channeltypes.ErrChannelExists.Wrap("cannot register permissioned relayer for the channel in use") | ||
| } | ||
|
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| challenger, err := sdk.AccAddressFromBech32(bridgeConfig.Challenger) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| // register challenger as channel relayer | ||
| h.IBCPermKeeper.SetChannelRelayer(ctx, channelID, challenger) | ||
| } | ||
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| return nil | ||
| } | ||
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| func (h BridgeHook) BridgeChallengerUpdated( | ||
| ctx sdk.Context, | ||
| bridgeId uint64, | ||
| bridgeConfig ophosttypes.BridgeConfig, | ||
| ) error { | ||
| channelID := string(bridgeConfig.Metadata) | ||
| if channeltypes.IsValidChannelID(channelID) { | ||
| challenger, err := sdk.AccAddressFromBech32(bridgeConfig.Challenger) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| // update relayer to a new challenger | ||
| h.IBCPermKeeper.SetChannelRelayer(ctx, channelID, challenger) | ||
| } | ||
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| return nil | ||
| } | ||
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| func (h BridgeHook) BridgeProposerUpdated( | ||
| ctx sdk.Context, | ||
| bridgeId uint64, | ||
| bridgeConfig ophosttypes.BridgeConfig, | ||
| ) error { | ||
| return nil | ||
| } |
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