71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package utils
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import (
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/x/ibc/04-channel/types"
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host "github.com/cosmos/cosmos-sdk/x/ibc/24-host"
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)
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// QueryPacket returns a packet from the store
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func QueryPacket(
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ctx context.CLIContext, portID, channelID string,
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sequence, timeoutHeight, timeoutTimestamp uint64, prove bool,
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) (types.PacketResponse, error) {
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req := abci.RequestQuery{
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Path: "store/ibc/key",
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Data: host.KeyPacketCommitment(portID, channelID, sequence),
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Prove: prove,
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}
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res, err := ctx.QueryABCI(req)
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if err != nil {
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return types.PacketResponse{}, err
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}
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channelRes, err := QueryChannel(ctx, portID, channelID, prove)
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if err != nil {
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return types.PacketResponse{}, err
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}
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destPortID := channelRes.Channel.Counterparty.PortID
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destChannelID := channelRes.Channel.Counterparty.ChannelID
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packet := types.NewPacket(
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res.Value,
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sequence,
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portID,
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channelID,
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destPortID,
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destChannelID,
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timeoutHeight,
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timeoutTimestamp,
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)
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// FIXME: res.Height+1 is hack, fix later
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return types.NewPacketResponse(portID, channelID, sequence, packet, res.Proof, res.Height+1), nil
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}
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// QueryChannel queries the store to get a channel and a merkle proof.
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func QueryChannel(
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ctx context.CLIContext, portID, channelID string, prove bool,
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) (types.ChannelResponse, error) {
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req := abci.RequestQuery{
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Path: "store/ibc/key",
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Data: host.KeyChannel(portID, channelID),
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Prove: prove,
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}
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res, err := ctx.QueryABCI(req)
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if res.Value == nil || err != nil {
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return types.ChannelResponse{}, err
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}
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var channel types.Channel
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if err := ctx.Codec.UnmarshalBinaryBare(res.Value, &channel); err != nil {
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return types.ChannelResponse{}, err
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}
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return types.NewChannelResponse(portID, channelID, channel, res.Proof, res.Height), nil
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}
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