Aptos (combined branch) #13716
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,219 @@ | ||
| package streams | ||
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| import ( | ||
| "context" | ||
| "crypto/ecdsa" | ||
| "maps" | ||
| "math/big" | ||
| "sync" | ||
| "time" | ||
|
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||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
| "github.com/smartcontractkit/libocr/offchainreporting2plus/chains/evmutil" | ||
| ocrTypes "github.com/smartcontractkit/libocr/offchainreporting2plus/types" | ||
|
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| "github.com/smartcontractkit/chainlink-common/pkg/capabilities" | ||
| "github.com/smartcontractkit/chainlink-common/pkg/capabilities/datastreams" | ||
| "github.com/smartcontractkit/chainlink-common/pkg/capabilities/triggers" | ||
| "github.com/smartcontractkit/chainlink-common/pkg/capabilities/triggers/streams" | ||
| "github.com/smartcontractkit/chainlink-common/pkg/services" | ||
| "github.com/smartcontractkit/chainlink-common/pkg/types/core" | ||
| v3 "github.com/smartcontractkit/chainlink-common/pkg/types/mercury/v3" | ||
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| "github.com/smartcontractkit/chainlink/v2/core/logger" | ||
| "github.com/smartcontractkit/chainlink/v2/core/services/relay/evm/mercury/v3/reportcodec" | ||
| ) | ||
|
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| func RegisterMockTrigger(lggr logger.Logger, capRegistry core.CapabilitiesRegistry) (*MockTriggerService, error) { | ||
| ctx := context.TODO() | ||
| trigger := NewMockTriggerService(100, lggr) | ||
| if err := trigger.Start(ctx); err != nil { | ||
| return nil, err | ||
| } | ||
| if err := capRegistry.Add(ctx, trigger); err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return trigger, nil | ||
| } | ||
|
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| const triggerID = "mock-streams-trigger@1.0.0" | ||
|
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| var capInfo = capabilities.MustNewCapabilityInfo( | ||
| triggerID, | ||
| capabilities.CapabilityTypeTrigger, | ||
| "Mock Streams Trigger", | ||
| ) | ||
|
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| // Wraps the MercuryTriggerService to produce a trigger with mocked data | ||
| type MockTriggerService struct { | ||
| *triggers.MercuryTriggerService | ||
| meta datastreams.Metadata | ||
| signers []*ecdsa.PrivateKey | ||
| stopCh services.StopChan | ||
| wg sync.WaitGroup | ||
| subscribers map[string][]streams.FeedId | ||
| subscribersMu sync.Mutex | ||
| lggr logger.Logger | ||
| } | ||
|
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| func NewMockTriggerService(tickerResolutionMs int64, lggr logger.Logger) *MockTriggerService { | ||
| trigger := triggers.NewMercuryTriggerService(tickerResolutionMs, lggr) | ||
| trigger.CapabilityInfo = capInfo | ||
|
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| f := 1 | ||
| meta := datastreams.Metadata{MinRequiredSignatures: 2*f + 1} | ||
| // gen private keys for MinRequiredSignatures | ||
| signers := []*ecdsa.PrivateKey{} | ||
| for i := 0; i < meta.MinRequiredSignatures; i++ { | ||
| // test keys: need to be the same across nodes | ||
| bytes := make([]byte, 32) | ||
| bytes[31] = uint8(i + 1) | ||
|
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| privKey, err := crypto.ToECDSA(bytes) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| signers = append(signers, privKey) | ||
|
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| signerAddr := crypto.PubkeyToAddress(privKey.PublicKey).Bytes() | ||
| meta.Signers = append(meta.Signers, signerAddr) | ||
| } | ||
|
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| // MercuryTrigger is typically wrapped by other modules that ignore the trigger's meta and provide a different one. | ||
| // Since we're skipping those wrappers we need to provide our own meta here. | ||
| trigger.SetMetaOverride(meta) | ||
|
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||
| return &MockTriggerService{ | ||
| MercuryTriggerService: trigger, | ||
| meta: meta, | ||
| signers: signers, | ||
| subscribers: make(map[string][]streams.FeedId), | ||
| lggr: lggr} | ||
| } | ||
|
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| func (m *MockTriggerService) Start(ctx context.Context) error { | ||
| if err := m.MercuryTriggerService.Start(ctx); err != nil { | ||
| return err | ||
| } | ||
| go m.loop() | ||
| return nil | ||
| } | ||
|
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| func (m *MockTriggerService) Close() error { | ||
| close(m.stopCh) | ||
| m.wg.Wait() | ||
| return m.MercuryTriggerService.Close() | ||
| } | ||
|
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| func (o *MockTriggerService) RegisterTrigger(ctx context.Context, req capabilities.TriggerRegistrationRequest) (<-chan capabilities.TriggerResponse, error) { | ||
| ch, err := o.MercuryTriggerService.RegisterTrigger(ctx, req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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||
| config, _ := o.MercuryTriggerService.ValidateConfig(req.Config) | ||
| o.subscribersMu.Lock() | ||
| defer o.subscribersMu.Unlock() | ||
| o.subscribers[req.Metadata.WorkflowID] = config.FeedIds | ||
| return ch, nil | ||
| } | ||
|
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| func (o *MockTriggerService) UnregisterTrigger(ctx context.Context, req capabilities.TriggerRegistrationRequest) error { | ||
| err := o.MercuryTriggerService.UnregisterTrigger(ctx, req) | ||
| o.subscribersMu.Lock() | ||
| defer o.subscribersMu.Unlock() | ||
| delete(o.subscribers, req.Metadata.WorkflowID) | ||
| return err | ||
| } | ||
|
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| const baseTimestamp = 1000000000 | ||
|
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| // NOTE: duplicated from trigger_test.go | ||
| func newReport(lggr logger.Logger, feedID [32]byte, price *big.Int, timestamp int64) []byte { | ||
| v3Codec := reportcodec.NewReportCodec(feedID, lggr) | ||
| raw, err := v3Codec.BuildReport(v3.ReportFields{ | ||
| BenchmarkPrice: price, | ||
| Timestamp: uint32(timestamp), | ||
| ValidFromTimestamp: uint32(timestamp), | ||
| Bid: price, | ||
| Ask: price, | ||
| LinkFee: price, | ||
| NativeFee: price, | ||
| ExpiresAt: uint32(timestamp + 1000000), | ||
| }) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return raw | ||
| } | ||
|
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| func rawReportContext(reportCtx ocrTypes.ReportContext) []byte { | ||
| rc := evmutil.RawReportContext(reportCtx) | ||
| flat := []byte{} | ||
| for _, r := range rc { | ||
| flat = append(flat, r[:]...) | ||
| } | ||
| return flat | ||
| } | ||
|
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| func (m *MockTriggerService) loop() { | ||
| sleepSec := 15 | ||
| ticker := time.NewTicker(time.Duration(sleepSec) * time.Second) | ||
| defer ticker.Stop() | ||
|
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| prices := []int64{300000, 40000, 5000000} | ||
|
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| j := 0 | ||
|
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| for range ticker.C { | ||
| // TODO: properly close | ||
| for i := range prices { | ||
| prices[i] = prices[i] + 1 | ||
| } | ||
| j++ | ||
|
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| // https://github.com/smartcontractkit/chainlink/blob/41f9428c3aa8231e8834a230fca4c2ccffd4e6c3/core/capabilities/streams/trigger_test.go#L117-L122 | ||
|
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| timestamp := time.Now().Unix() | ||
| // TODO: shouldn't we increment round rather than epoch? | ||
| reportCtx := ocrTypes.ReportContext{ReportTimestamp: ocrTypes.ReportTimestamp{Epoch: uint32(baseTimestamp + j)}} | ||
|
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| reports := []datastreams.FeedReport{} | ||
| subscribers := map[string][]streams.FeedId{} | ||
| m.subscribersMu.Lock() | ||
| maps.Copy(subscribers, m.subscribers) | ||
| m.subscribersMu.Unlock() | ||
| for _, feedIDs := range subscribers { | ||
| for _, feedID := range feedIDs { | ||
| feedID := string(feedID) | ||
| report := datastreams.FeedReport{ | ||
| FeedID: feedID, | ||
| FullReport: newReport(m.lggr, common.HexToHash(feedID), big.NewInt(prices[0]), timestamp), | ||
| ReportContext: rawReportContext(reportCtx), | ||
| ObservationTimestamp: timestamp, | ||
| } | ||
| // sign report with mock signers | ||
| sigData := append(crypto.Keccak256(report.FullReport), report.ReportContext...) | ||
| hash := crypto.Keccak256(sigData) | ||
| for n := 0; n < m.meta.MinRequiredSignatures; n++ { | ||
| sig, err := crypto.Sign(hash, m.signers[n]) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| report.Signatures = append(report.Signatures, sig) | ||
| } | ||
|
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| reports = append(reports, report) | ||
| } | ||
|
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| } | ||
|
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| m.lggr.Infow("New set of Mock reports", "timestamp", time.Now().Unix(), "payload", reports) | ||
| err := m.MercuryTriggerService.ProcessReport(reports) | ||
| if err != nil { | ||
| m.lggr.Errorw("failed to process Mock reports", "err", err, "timestamp", time.Now().Unix(), "payload", reports) | ||
| } | ||
| } | ||
| } | ||
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I like having this merged as an example trigger. I only wish it could go to common but it can't because of EVM dep :( Maybe we should create a special sub-directory with example capabilities and move on-demand trigger there as well...? @cedric-cordenier thoughts?