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registry.go
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registry.go
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package evm
import (
"context"
goerrors "errors"
"fmt"
"math/big"
"net/http"
"sync"
"time"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
coreTypes "github.com/ethereum/go-ethereum/core/types"
"github.com/patrickmn/go-cache"
"github.com/pkg/errors"
"go.uber.org/multierr"
ocr2keepers "github.com/smartcontractkit/ocr2keepers/pkg/v3/types"
"github.com/smartcontractkit/chainlink/v2/core/chains/evm"
"github.com/smartcontractkit/chainlink/v2/core/chains/evm/client"
"github.com/smartcontractkit/chainlink/v2/core/chains/evm/logpoller"
"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/generated"
iregistry21 "github.com/smartcontractkit/chainlink/v2/core/gethwrappers/generated/i_keeper_registry_master_wrapper_2_1"
"github.com/smartcontractkit/chainlink/v2/core/logger"
"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/models"
"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ocr2keeper/evm21/core"
"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ocr2keeper/evm21/encoding"
"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ocr2keeper/evm21/logprovider"
"github.com/smartcontractkit/chainlink/v2/core/services/pg"
"github.com/smartcontractkit/chainlink/v2/core/utils"
)
const (
// defaultAllowListExpiration decides how long an upkeep's allow list info will be valid for.
defaultAllowListExpiration = 20 * time.Minute
// allowListCleanupInterval decides when the expired items in allowList cache will be deleted.
allowListCleanupInterval = 5 * time.Minute
logTriggerRefreshBatchSize = 32
)
var (
RegistryServiceName = "AutomationRegistry"
ErrLogReadFailure = fmt.Errorf("failure reading logs")
ErrHeadNotAvailable = fmt.Errorf("head not available")
ErrInitializationFailure = fmt.Errorf("failed to initialize registry")
ErrContextCancelled = fmt.Errorf("context was cancelled")
ErrABINotParsable = fmt.Errorf("error parsing abi")
ActiveUpkeepIDBatchSize int64 = 1000
// This is the interval at which active upkeep list is fully refreshed from chain
refreshInterval = 15 * time.Minute
// This is the lookback for polling upkeep state event logs from latest block
logEventLookback int64 = 250
)
//go:generate mockery --quiet --name Registry --output ./mocks/ --case=underscore
type Registry interface {
GetUpkeep(opts *bind.CallOpts, id *big.Int) (encoding.UpkeepInfo, error)
GetState(opts *bind.CallOpts) (iregistry21.GetState, error)
GetActiveUpkeepIDs(opts *bind.CallOpts, startIndex *big.Int, maxCount *big.Int) ([]*big.Int, error)
GetUpkeepPrivilegeConfig(opts *bind.CallOpts, upkeepId *big.Int) ([]byte, error)
GetUpkeepTriggerConfig(opts *bind.CallOpts, upkeepId *big.Int) ([]byte, error)
CheckCallback(opts *bind.CallOpts, id *big.Int, values [][]byte, extraData []byte) (iregistry21.CheckCallback, error)
ParseLog(log coreTypes.Log) (generated.AbigenLog, error)
}
//go:generate mockery --quiet --name HttpClient --output ./mocks/ --case=underscore
type HttpClient interface {
Do(req *http.Request) (*http.Response, error)
}
func NewEvmRegistry(
lggr logger.Logger,
addr common.Address,
client evm.Chain,
registry *iregistry21.IKeeperRegistryMaster,
mc *models.MercuryCredentials,
al ActiveUpkeepList,
logEventProvider logprovider.LogEventProvider,
packer encoding.Packer,
blockSub *BlockSubscriber,
finalityDepth uint32,
) *EvmRegistry {
return &EvmRegistry{
ctx: context.Background(),
threadCtrl: utils.NewThreadControl(),
lggr: lggr.Named(RegistryServiceName),
poller: client.LogPoller(),
addr: addr,
client: client.Client(),
logProcessed: make(map[string]bool),
registry: registry,
abi: core.RegistryABI,
active: al,
packer: packer,
headFunc: func(ocr2keepers.BlockKey) {},
chLog: make(chan logpoller.Log, 1000),
mercury: &MercuryConfig{
cred: mc,
abi: core.StreamsCompatibleABI,
allowListCache: cache.New(defaultAllowListExpiration, allowListCleanupInterval),
},
hc: http.DefaultClient,
logEventProvider: logEventProvider,
bs: blockSub,
finalityDepth: finalityDepth,
}
}
var upkeepStateEvents = []common.Hash{
iregistry21.IKeeperRegistryMasterUpkeepRegistered{}.Topic(), // adds new upkeep id to registry
iregistry21.IKeeperRegistryMasterUpkeepReceived{}.Topic(), // adds new upkeep id to registry via migration
iregistry21.IKeeperRegistryMasterUpkeepUnpaused{}.Topic(), // unpauses an upkeep
iregistry21.IKeeperRegistryMasterUpkeepPaused{}.Topic(), // pauses an upkeep
iregistry21.IKeeperRegistryMasterUpkeepMigrated{}.Topic(), // migrated an upkeep, equivalent to cancel from this registry's perspective
iregistry21.IKeeperRegistryMasterUpkeepCanceled{}.Topic(), // cancels an upkeep
iregistry21.IKeeperRegistryMasterUpkeepTriggerConfigSet{}.Topic(), // trigger config was changed
}
type MercuryConfig struct {
cred *models.MercuryCredentials
abi abi.ABI
// allowListCache stores the upkeeps privileges. In 2.1, this only includes a JSON bytes for allowed to use mercury
allowListCache *cache.Cache
}
type EvmRegistry struct {
utils.StartStopOnce
threadCtrl utils.ThreadControl
lggr logger.Logger
poller logpoller.LogPoller
addr common.Address
client client.Client
chainID uint64
registry Registry
abi abi.ABI
packer encoding.Packer
chLog chan logpoller.Log
mu sync.RWMutex
logProcessed map[string]bool
active ActiveUpkeepList
lastPollBlock int64
ctx context.Context
headFunc func(ocr2keepers.BlockKey)
mercury *MercuryConfig
hc HttpClient
bs *BlockSubscriber
logEventProvider logprovider.LogEventProvider
finalityDepth uint32
}
func (r *EvmRegistry) Name() string {
return r.lggr.Name()
}
func (r *EvmRegistry) Start(ctx context.Context) error {
return r.StartOnce(RegistryServiceName, func() error {
if err := r.registerEvents(r.chainID, r.addr); err != nil {
return fmt.Errorf("logPoller error while registering automation events: %w", err)
}
r.threadCtrl.Go(func(ctx context.Context) {
lggr := r.lggr.With("where", "upkeeps_referesh")
err := r.refreshActiveUpkeeps()
if err != nil {
lggr.Errorf("failed to initialize upkeeps", err)
}
ticker := time.NewTicker(refreshInterval)
defer ticker.Stop()
for {
select {
case <-ticker.C:
err = r.refreshActiveUpkeeps()
if err != nil {
lggr.Errorf("failed to refresh upkeeps", err)
}
case <-ctx.Done():
return
}
}
})
r.threadCtrl.Go(func(ctx context.Context) {
lggr := r.lggr.With("where", "logs_polling")
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
err := r.pollUpkeepStateLogs()
if err != nil {
lggr.Errorf("failed to poll logs for upkeeps", err)
}
case <-ctx.Done():
return
}
}
})
r.threadCtrl.Go(func(ctx context.Context) {
lggr := r.lggr.With("where", "logs_processing")
ch := r.chLog
for {
select {
case l := <-ch:
err := r.processUpkeepStateLog(l)
if err != nil {
lggr.Errorf("failed to process log for upkeep", err)
}
case <-ctx.Done():
return
}
}
})
return nil
})
}
func (r *EvmRegistry) Close() error {
return r.StopOnce(RegistryServiceName, func() error {
r.threadCtrl.Close()
return nil
})
}
func (r *EvmRegistry) HealthReport() map[string]error {
return map[string]error{RegistryServiceName: r.Healthy()}
}
func (r *EvmRegistry) refreshActiveUpkeeps() error {
// Allow for max timeout of refreshInterval
ctx, cancel := context.WithTimeout(r.ctx, refreshInterval)
defer cancel()
r.lggr.Debugf("Refreshing active upkeeps list")
// get active upkeep ids from contract
ids, err := r.getLatestIDsFromContract(ctx)
if err != nil {
return fmt.Errorf("failed to get active upkeep ids from contract during refresh: %s", err)
}
r.active.Reset(ids...)
var logTriggerIDs []*big.Int
for _, id := range ids {
uid := &ocr2keepers.UpkeepIdentifier{}
if ok := uid.FromBigInt(id); !ok {
r.lggr.Warnf("failed to parse upkeep id %s", id.String())
continue
}
switch core.GetUpkeepType(*uid) {
case ocr2keepers.LogTrigger:
logTriggerIDs = append(logTriggerIDs, id)
default:
}
}
_, err = r.logEventProvider.RefreshActiveUpkeeps(logTriggerIDs...)
if err != nil {
return fmt.Errorf("failed to refresh active upkeep ids in log event provider: %w", err)
}
// Try to refersh log trigger config for all log upkeeps
return r.refreshLogTriggerUpkeeps(logTriggerIDs)
}
// refreshLogTriggerUpkeeps refreshes the active upkeep ids for log trigger upkeeps
func (r *EvmRegistry) refreshLogTriggerUpkeeps(ids []*big.Int) error {
var err error
for i := 0; i < len(ids); i += logTriggerRefreshBatchSize {
end := i + logTriggerRefreshBatchSize
if end > len(ids) {
end = len(ids)
}
idBatch := ids[i:end]
if batchErr := r.refreshLogTriggerUpkeepsBatch(idBatch); batchErr != nil {
multierr.AppendInto(&err, batchErr)
}
time.Sleep(500 * time.Millisecond)
}
return err
}
func (r *EvmRegistry) refreshLogTriggerUpkeepsBatch(logTriggerIDs []*big.Int) error {
var logTriggerHashes []common.Hash
for _, id := range logTriggerIDs {
logTriggerHashes = append(logTriggerHashes, common.BigToHash(id))
}
unpausedLogs, err := r.poller.IndexedLogs(iregistry21.IKeeperRegistryMasterUpkeepUnpaused{}.Topic(), r.addr, 1, logTriggerHashes, logpoller.Confirmations(r.finalityDepth), pg.WithParentCtx(r.ctx))
if err != nil {
return err
}
configSetLogs, err := r.poller.IndexedLogs(iregistry21.IKeeperRegistryMasterUpkeepTriggerConfigSet{}.Topic(), r.addr, 1, logTriggerHashes, logpoller.Confirmations(r.finalityDepth), pg.WithParentCtx(r.ctx))
if err != nil {
return err
}
logs := append(unpausedLogs, configSetLogs...)
configSetBlockNumbers := map[string]uint64{}
unpausedBlockNumbers := map[string]uint64{}
perUpkeepConfig := map[string][]byte{}
for _, log := range logs {
rawLog := log.ToGethLog()
abilog, err := r.registry.ParseLog(rawLog)
if err != nil {
return err
}
switch l := abilog.(type) {
case *iregistry21.IKeeperRegistryMasterUpkeepTriggerConfigSet:
if rawLog.BlockNumber > configSetBlockNumbers[l.Id.String()] {
configSetBlockNumbers[l.Id.String()] = rawLog.BlockNumber
perUpkeepConfig[l.Id.String()] = l.TriggerConfig
}
case *iregistry21.IKeeperRegistryMasterUpkeepUnpaused:
if rawLog.BlockNumber > unpausedBlockNumbers[l.Id.String()] {
unpausedBlockNumbers[l.Id.String()] = rawLog.BlockNumber
}
}
}
var merr error
for _, id := range logTriggerIDs {
logBlock, ok := configSetBlockNumbers[id.String()]
if !ok {
r.lggr.Warnf("unable to find finalized config set block number for %s, using 0 as config start block", id.String())
// Use zero as config update block so it can be updated if an actual event is found later
logBlock = 0
}
config, ok := perUpkeepConfig[id.String()]
if !ok {
r.lggr.Warnf("unable to find per finalized log config for %s, will fetch latest config from chain", id.String())
// Set it to empty bytes so that latest config is fetched within r.updateTriggerConfig
config = []byte{}
}
// In case an upkeep was paused then unpaused after a config set event, start the config from the unpaused block number
if unpausedBlockNumbers[id.String()] > logBlock {
logBlock = unpausedBlockNumbers[id.String()]
}
if err := r.updateTriggerConfig(id, config, logBlock); err != nil {
merr = goerrors.Join(merr, fmt.Errorf("failed to update trigger config for upkeep id %s: %w", id.String(), err))
}
}
return merr
}
func (r *EvmRegistry) pollUpkeepStateLogs() error {
var latest int64
var end logpoller.LogPollerBlock
var err error
if end, err = r.poller.LatestBlock(pg.WithParentCtx(r.ctx)); err != nil {
return fmt.Errorf("%w: %s", ErrHeadNotAvailable, err)
}
r.mu.Lock()
latest = r.lastPollBlock
r.lastPollBlock = end.BlockNumber
r.mu.Unlock()
// if start and end are the same, no polling needs to be done
if latest == 0 || latest == end.BlockNumber {
return nil
}
var logs []logpoller.Log
if logs, err = r.poller.LogsWithSigs(
end.BlockNumber-logEventLookback,
end.BlockNumber,
upkeepStateEvents,
r.addr,
pg.WithParentCtx(r.ctx),
); err != nil {
return fmt.Errorf("%w: %s", ErrLogReadFailure, err)
}
for _, log := range logs {
r.chLog <- log
}
return nil
}
func (r *EvmRegistry) processUpkeepStateLog(l logpoller.Log) error {
lid := fmt.Sprintf("%s%d", l.TxHash.String(), l.LogIndex)
r.mu.Lock()
if _, ok := r.logProcessed[lid]; ok {
r.mu.Unlock()
return nil
}
r.logProcessed[lid] = true
r.mu.Unlock()
txHash := l.TxHash.String()
rawLog := l.ToGethLog()
abilog, err := r.registry.ParseLog(rawLog)
if err != nil {
return err
}
switch l := abilog.(type) {
case *iregistry21.IKeeperRegistryMasterUpkeepPaused:
r.lggr.Debugf("KeeperRegistryUpkeepPaused log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
r.removeFromActive(l.Id)
case *iregistry21.IKeeperRegistryMasterUpkeepCanceled:
r.lggr.Debugf("KeeperRegistryUpkeepCanceled log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
r.removeFromActive(l.Id)
case *iregistry21.IKeeperRegistryMasterUpkeepMigrated:
r.lggr.Debugf("KeeperRegistryMasterUpkeepMigrated log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
r.removeFromActive(l.Id)
case *iregistry21.IKeeperRegistryMasterUpkeepTriggerConfigSet:
r.lggr.Debugf("KeeperRegistryUpkeepTriggerConfigSet log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
if err := r.updateTriggerConfig(l.Id, l.TriggerConfig, rawLog.BlockNumber); err != nil {
r.lggr.Warnf("failed to update trigger config upon KeeperRegistryMasterUpkeepTriggerConfigSet for upkeep ID %s: %s", l.Id.String(), err)
}
case *iregistry21.IKeeperRegistryMasterUpkeepRegistered:
uid := &ocr2keepers.UpkeepIdentifier{}
uid.FromBigInt(l.Id)
trigger := core.GetUpkeepType(*uid)
r.lggr.Debugf("KeeperRegistryUpkeepRegistered log detected for upkeep ID %s (trigger=%d) in transaction %s", l.Id.String(), trigger, txHash)
r.active.Add(l.Id)
if err := r.updateTriggerConfig(l.Id, nil, rawLog.BlockNumber); err != nil {
r.lggr.Warnf("failed to update trigger config upon KeeperRegistryMasterUpkeepRegistered for upkeep ID %s: %s", err)
}
case *iregistry21.IKeeperRegistryMasterUpkeepReceived:
r.lggr.Debugf("KeeperRegistryUpkeepReceived log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
r.active.Add(l.Id)
if err := r.updateTriggerConfig(l.Id, nil, rawLog.BlockNumber); err != nil {
r.lggr.Warnf("failed to update trigger config upon KeeperRegistryMasterUpkeepReceived for upkeep ID %s: %s", err)
}
case *iregistry21.IKeeperRegistryMasterUpkeepUnpaused:
r.lggr.Debugf("KeeperRegistryUpkeepUnpaused log detected for upkeep ID %s in transaction %s", l.Id.String(), txHash)
r.active.Add(l.Id)
if err := r.updateTriggerConfig(l.Id, nil, rawLog.BlockNumber); err != nil {
r.lggr.Warnf("failed to update trigger config upon KeeperRegistryMasterUpkeepUnpaused for upkeep ID %s: %s", err)
}
default:
r.lggr.Debugf("Unknown log detected for log %+v in transaction %s", l, txHash)
}
return nil
}
func RegistryUpkeepFilterName(addr common.Address) string {
return logpoller.FilterName("KeeperRegistry Events", addr.String())
}
// registerEvents registers upkeep state events from keeper registry on log poller
func (r *EvmRegistry) registerEvents(_ uint64, addr common.Address) error {
// Add log filters for the log poller so that it can poll and find the logs that we need
return r.poller.RegisterFilter(logpoller.Filter{
Name: RegistryUpkeepFilterName(addr),
EventSigs: upkeepStateEvents,
Addresses: []common.Address{addr},
})
}
// removeFromActive removes an upkeepID from active list and unregisters the log filter for log upkeeps
func (r *EvmRegistry) removeFromActive(id *big.Int) {
r.active.Remove(id)
uid := &ocr2keepers.UpkeepIdentifier{}
uid.FromBigInt(id)
trigger := core.GetUpkeepType(*uid)
switch trigger {
case ocr2keepers.LogTrigger:
if err := r.logEventProvider.UnregisterFilter(id); err != nil {
r.lggr.Warnw("failed to unregister log filter", "upkeepID", id.String())
}
r.lggr.Debugw("unregistered log filter", "upkeepID", id.String())
default:
}
}
func (r *EvmRegistry) buildCallOpts(ctx context.Context, block *big.Int) *bind.CallOpts {
opts := bind.CallOpts{
Context: ctx,
}
if block == nil || block.Int64() == 0 {
l := r.bs.latestBlock.Load()
if l != nil && l.Number != 0 {
opts.BlockNumber = big.NewInt(int64(l.Number))
}
} else {
opts.BlockNumber = block
}
return &opts
}
func (r *EvmRegistry) getLatestIDsFromContract(ctx context.Context) ([]*big.Int, error) {
opts := r.buildCallOpts(ctx, nil)
state, err := r.registry.GetState(opts)
if err != nil {
n := "latest"
if opts.BlockNumber != nil {
n = fmt.Sprintf("%d", opts.BlockNumber.Int64())
}
return nil, fmt.Errorf("%w: failed to get contract state at block number '%s'", err, n)
}
ids := make([]*big.Int, 0, int(state.State.NumUpkeeps.Int64()))
for int64(len(ids)) < state.State.NumUpkeeps.Int64() {
startIndex := int64(len(ids))
maxCount := state.State.NumUpkeeps.Int64() - startIndex
if maxCount == 0 {
break
}
if maxCount > ActiveUpkeepIDBatchSize {
maxCount = ActiveUpkeepIDBatchSize
}
batchIDs, err := r.registry.GetActiveUpkeepIDs(opts, big.NewInt(startIndex), big.NewInt(maxCount))
if err != nil {
return nil, fmt.Errorf("%w: failed to get active upkeep IDs from index %d to %d (both inclusive)", err, startIndex, startIndex+maxCount-1)
}
ids = append(ids, batchIDs...)
}
return ids, nil
}
// updateTriggerConfig updates the trigger config for an upkeep. it will re-register a filter for this upkeep.
func (r *EvmRegistry) updateTriggerConfig(id *big.Int, cfg []byte, logBlock uint64) error {
uid := &ocr2keepers.UpkeepIdentifier{}
uid.FromBigInt(id)
switch core.GetUpkeepType(*uid) {
case ocr2keepers.LogTrigger:
if len(cfg) == 0 {
fetched, err := r.fetchTriggerConfig(id)
if err != nil {
return errors.Wrap(err, "failed to fetch log upkeep config")
}
cfg = fetched
}
parsed, err := r.packer.UnpackLogTriggerConfig(cfg)
if err != nil {
// Upkeep has been setup with improper config. Log a warning and ignore the upkeep.
r.lggr.Warnw("failed to unpack log upkeep config", "upkeepID", id.String(), "err", err)
return nil
}
if err := r.logEventProvider.RegisterFilter(r.ctx, logprovider.FilterOptions{
TriggerConfig: logprovider.LogTriggerConfig(parsed),
UpkeepID: id,
UpdateBlock: logBlock,
}); err != nil {
return errors.Wrap(err, "failed to register log filter")
}
r.lggr.Debugw("registered log filter", "upkeepID", id.String(), "cfg", parsed)
default:
}
return nil
}
// fetchTriggerConfig fetches trigger config in raw bytes for an upkeep.
func (r *EvmRegistry) fetchTriggerConfig(id *big.Int) ([]byte, error) {
opts := r.buildCallOpts(r.ctx, nil)
cfg, err := r.registry.GetUpkeepTriggerConfig(opts, id)
if err != nil {
r.lggr.Warnw("failed to get trigger config", "err", err)
return nil, err
}
return cfg, nil
}