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Hex Packet Data #144

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merged 3 commits into from
Apr 28, 2021
Merged

Hex Packet Data #144

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6d44c24
add non-breaking event attribute
AdityaSripal Apr 28, 2021
40e9d5d
CHANGELOG
AdityaSripal Apr 28, 2021
a1214e4
add migration doc
AdityaSripal Apr 28, 2021
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
### Improvements

* (modules/core/04-channel) [\#7949](https://github.com/cosmos/cosmos-sdk/issues/7949) Standardized channel `Acknowledgement` moved to its own file. Codec registration redundancy removed.
* (modules/core/04-channel) [\#144](https://github.com/cosmos/ibc-go/pull/144) Introduced a `packet_data_hex` attribute to emit the hex-encoded packet data in events. This allows for raw binary (proto-encoded message) to be sent over events and decoded correctly on relayer. Original `packet_data` is DEPRECATED. All relayers and IBC event consumers are encouraged to switch to `packet_data_hex` as soon as possible.
* (modules/light-clients/07-tendermint) [\#125](https://github.com/cosmos/ibc-go/pull/125) Implement efficient iteration of consensus states and pruning of earliest expired consensus state on UpdateClient.

## IBC in the Cosmos SDK Repository
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10 changes: 7 additions & 3 deletions modules/core/04-channel/keeper/packet.go
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Expand Up @@ -2,6 +2,7 @@ package keeper

import (
"bytes"
"encoding/hex"
"fmt"
"time"

Expand Down Expand Up @@ -120,7 +121,8 @@ func (k Keeper) SendPacket(
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeSendPacket,
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())), // DEPRECATED
sdk.NewAttribute(types.AttributeKeyDataHex, hex.EncodeToString(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyTimeoutHeight, timeoutHeight.String()),
sdk.NewAttribute(types.AttributeKeyTimeoutTimestamp, fmt.Sprintf("%d", packet.GetTimeoutTimestamp())),
sdk.NewAttribute(types.AttributeKeySequence, fmt.Sprintf("%d", packet.GetSequence())),
Expand Down Expand Up @@ -283,7 +285,8 @@ func (k Keeper) RecvPacket(
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeRecvPacket,
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())), // DEPRECATED
sdk.NewAttribute(types.AttributeKeyDataHex, hex.EncodeToString(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyTimeoutHeight, packet.GetTimeoutHeight().String()),
sdk.NewAttribute(types.AttributeKeyTimeoutTimestamp, fmt.Sprintf("%d", packet.GetTimeoutTimestamp())),
sdk.NewAttribute(types.AttributeKeySequence, fmt.Sprintf("%d", packet.GetSequence())),
Expand Down Expand Up @@ -367,7 +370,8 @@ func (k Keeper) WriteAcknowledgement(
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeWriteAck,
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyData, string(packet.GetData())), // DEPRECATED
sdk.NewAttribute(types.AttributeKeyDataHex, hex.EncodeToString(packet.GetData())),
sdk.NewAttribute(types.AttributeKeyTimeoutHeight, packet.GetTimeoutHeight().String()),
sdk.NewAttribute(types.AttributeKeyTimeoutTimestamp, fmt.Sprintf("%d", packet.GetTimeoutTimestamp())),
sdk.NewAttribute(types.AttributeKeySequence, fmt.Sprintf("%d", packet.GetSequence())),
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5 changes: 4 additions & 1 deletion modules/core/04-channel/types/events.go
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Expand Up @@ -20,7 +20,10 @@ const (
EventTypeAcknowledgePacket = "acknowledge_packet"
EventTypeTimeoutPacket = "timeout_packet"

AttributeKeyData = "packet_data"
// NOTE: DEPRECATED in favor of AttributeKeyDataHex
AttributeKeyData = "packet_data"

AttributeKeyDataHex = "packet_data_hex"
AttributeKeyAck = "packet_ack"
AttributeKeyTimeoutHeight = "packet_timeout_height"
AttributeKeyTimeoutTimestamp = "packet_timeout_timestamp"
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