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airdrop.go
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airdrop.go
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package keeper
import (
"errors"
"fmt"
errorsmod "cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
transfertypes "github.com/cosmos/ibc-go/v7/modules/apps/transfer/types"
channeltypes "github.com/cosmos/ibc-go/v7/modules/core/04-channel/types"
"github.com/Stride-Labs/stride/v22/utils"
claimtypes "github.com/Stride-Labs/stride/v22/x/claim/types"
stakeibctypes "github.com/Stride-Labs/stride/v22/x/stakeibc/types"
)
// Attempt to link a host address with a stride address to enable airdrop claims
func (k Keeper) TryUpdateAirdropClaim(
ctx sdk.Context,
packet channeltypes.Packet,
transferMetadata transfertypes.FungibleTokenPacketData,
) error {
params := k.GetParams(ctx)
if !params.ClaimActive {
return errors.New("packet forwarding param is not active")
}
// verify packet originated on a registered host zone
if packet.GetDestPort() != transfertypes.PortID {
return errors.New("airdrop claim packet should be sent along a transfer channel")
}
hostZone, found := k.stakeibcKeeper.GetHostZoneFromTransferChannelID(ctx, packet.GetDestChannel())
if !found {
return errorsmod.Wrapf(stakeibctypes.ErrHostZoneNotFound,
"host zone not found for transfer channel %s", packet.GetDestChannel())
}
// grab relevant addresses
senderStrideAddress := utils.ConvertAddressToStrideAddress(transferMetadata.Sender)
if senderStrideAddress == "" {
return errorsmod.Wrapf(sdkerrors.ErrInvalidAddress, fmt.Sprintf("invalid sender address (%s)", transferMetadata.Sender))
}
newStrideAddress := transferMetadata.Receiver
// find the airdrop for this host chain ID
airdrop, found := k.claimKeeper.GetAirdropByChainId(ctx, hostZone.ChainId)
if !found {
return errorsmod.Wrapf(claimtypes.ErrAirdropNotFound, "airdrop not found for chain-id %s", hostZone.ChainId)
}
if !airdrop.AutopilotEnabled {
return fmt.Errorf("autopilot claiming is not enabled for host zone %s", hostZone.ChainId)
}
airdropId := airdrop.AirdropIdentifier
k.Logger(ctx).Info(fmt.Sprintf("updating airdrop address %s (orig %s) to %s for airdrop %s",
senderStrideAddress, transferMetadata.Sender, newStrideAddress, airdropId))
return k.claimKeeper.UpdateAirdropAddress(ctx, senderStrideAddress, newStrideAddress, airdropId)
}