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checkpoint.go
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checkpoint.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package erc20multisig
import (
"context"
"sort"
"code.vegaprotocol.io/vega/core/types"
"code.vegaprotocol.io/vega/libs/proto"
"code.vegaprotocol.io/vega/logging"
checkpoint "code.vegaprotocol.io/vega/protos/vega/checkpoint/v1"
events "code.vegaprotocol.io/vega/protos/vega/events/v1"
)
func (t *Topology) Name() types.CheckpointName {
return types.MultisigControlCheckpoint
}
func (t *Topology) Checkpoint() ([]byte, error) {
var thresholdSet *events.ERC20MultiSigThresholdSetEvent
if t.threshold != nil {
thresholdSet = t.threshold.IntoProto()
}
msg := &checkpoint.MultisigControl{
Signers: t.getSigners(),
ThresholdSet: thresholdSet,
LastBlockSeen: t.getLastBlockSeen(),
}
ret, err := proto.Marshal(msg)
if err != nil {
return nil, err
}
return ret, nil
}
func (t *Topology) Load(ctx context.Context, data []byte) error {
mc := checkpoint.MultisigControl{}
if err := proto.Unmarshal(data, &mc); err != nil {
return err
}
// load signers
for _, sevt := range mc.Signers {
signerEvent := types.SignerEventFromEventProto(sevt)
t.addSignerEvent(ctx, signerEvent)
// now ensure that the seen map is OK
if !t.ensureNotDuplicate(signerEvent.Hash()) {
t.log.Panic("invalid checkpoint data, duplicated signer event",
logging.String("event-id", signerEvent.ID))
}
}
// load threshold
if mc.ThresholdSet != nil {
t.setThresholdSetEvent(
ctx, types.SignerThresholdSetEventFromEventProto(mc.ThresholdSet))
}
// 0 is default value, we assume that it was then not set
if mc.LastBlockSeen != 0 {
t.ethEventSource.UpdateMultisigControlStartingBlock(mc.LastBlockSeen)
}
return nil
}
func (t *Topology) getSigners() []*events.ERC20MultiSigSignerEvent {
// we only keep the list of all verified events
out := []*events.ERC20MultiSigSignerEvent{}
for _, evts := range t.eventsPerAddress {
for _, evt := range evts {
out = append(out, evt.IntoProto())
}
}
sort.Slice(out, func(i, j int) bool {
return out[i].Id < out[j].Id
})
return out
}
func (t *Topology) getLastBlockSeen() uint64 {
var block uint64
for _, v := range t.pendingSigners {
if block == 0 {
block = v.BlockNumber
continue
}
if block > v.BlockNumber {
block = v.BlockNumber
}
}
for _, v := range t.pendingThresholds {
if block == 0 {
block = v.BlockNumber
continue
}
if block > v.BlockNumber {
block = v.BlockNumber
}
}
// now if we have got any pending one, let's just pick the
// most recent verified
if block == 0 {
for _, evts := range t.eventsPerAddress {
for _, evt := range evts {
if evt.BlockNumber > block {
block = evt.BlockNumber
}
}
}
}
return block
}