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feat(claimer): WIP rework of claimer in GO
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| // (c) Cartesi and individual authors (see AUTHORS) | ||
| // SPDX-License-Identifier: Apache-2.0 (see LICENSE) | ||
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| package main | ||
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| import ( | ||
| "os" | ||
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| "github.com/cartesi/rollups-node/cmd/cartesi-rollups-claimer/root" | ||
| ) | ||
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| func main() { | ||
| err := root.Cmd.Execute() | ||
| if err != nil { | ||
| os.Exit(1) | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // (c) Cartesi and individual authors (see AUTHORS) | ||
| // SPDX-License-Identifier: Apache-2.0 (see LICENSE) | ||
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| package root | ||
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| import ( | ||
| "context" | ||
| "time" | ||
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| "github.com/cartesi/rollups-node/internal/claimer" | ||
| "github.com/cartesi/rollups-node/internal/config" | ||
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| "github.com/spf13/cobra" | ||
| ) | ||
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| var ( | ||
| // Should be overridden during the final release build with ldflags | ||
| // to contain the actual version number | ||
| buildVersion = "devel" | ||
| ) | ||
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| const ( | ||
| CMD_NAME = "claimer2" | ||
| ) | ||
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| var Cmd = &cobra.Command{ | ||
| Use: CMD_NAME, | ||
| Short: "Runs Claimer", | ||
| Long: `Runs Claimer in standalone mode`, | ||
| Run: run, | ||
| } | ||
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| func run(cmd *cobra.Command, args []string) { | ||
| ctx := context.Background() | ||
| c := config.FromEnv() | ||
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| claimer, err := claimer.Create(&claimer.CreateInfo{ | ||
| Auth: c.Auth, | ||
| BlockchainHttpEndpoint: c.BlockchainHttpEndpoint, | ||
| PostgresEndpoint: c.PostgresEndpoint, | ||
| Context: ctx, | ||
| PollInterval: 1000 * time.Millisecond, | ||
| }) | ||
| cobra.CheckErr(err) | ||
| claimer.Start() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package claimer | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "log/slog" | ||
| "math/big" | ||
| "time" | ||
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| signtx "github.com/cartesi/rollups-node/internal/aws-kms-signtx" | ||
| conf "github.com/cartesi/rollups-node/internal/config" | ||
| repo "github.com/cartesi/rollups-node/internal/repository" | ||
| "github.com/cartesi/rollups-node/pkg/contracts/iconsensus" | ||
| "github.com/cartesi/rollups-node/pkg/ethutil" | ||
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| "github.com/ethereum/go-ethereum/accounts/abi/bind" | ||
| "github.com/ethereum/go-ethereum/core/types" | ||
| "github.com/ethereum/go-ethereum/ethclient" | ||
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| "github.com/aws/aws-sdk-go-v2/aws" | ||
| aws_cfg "github.com/aws/aws-sdk-go-v2/config" | ||
| aws_kms "github.com/aws/aws-sdk-go-v2/service/kms" | ||
| ) | ||
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| type CreateInfo struct { | ||
| Auth conf.Auth | ||
| BlockchainHttpEndpoint conf.Redacted[string] | ||
| Context context.Context | ||
| EthConn ethclient.Client | ||
| PollInterval time.Duration | ||
| PostgresEndpoint conf.Redacted[string] | ||
| } | ||
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| type Service struct { | ||
| consensus iconsensus.IConsensus | ||
| context context.Context | ||
| dbConn *repo.Database | ||
| ethConn *ethclient.Client | ||
| signer *bind.TransactOpts | ||
| ticker *time.Ticker | ||
| } | ||
|
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| func createSigner(ctx context.Context, auth conf.Auth, chainID *big.Int) (*bind.TransactOpts, error) { | ||
| switch auth := auth.(type) { | ||
| case conf.AuthMnemonic: | ||
| privateKey, err := ethutil.MnemonicToPrivateKey( | ||
| auth.Mnemonic.Value, uint32(auth.AccountIndex.Value)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return bind.NewKeyedTransactorWithChainID(privateKey, chainID) | ||
| case conf.AuthAWS: | ||
| awsc, err := aws_cfg.LoadDefaultConfig(ctx) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| kms := aws_kms.NewFromConfig(awsc, func(o *aws_kms.Options) { | ||
| o.BaseEndpoint = aws.String(auth.EndpointURL.Value) | ||
| }) | ||
| return signtx.CreateAWSTransactOpts(ctx, kms, | ||
| aws.String(auth.KeyID.Value), types.NewEIP155Signer(chainID)) | ||
| } | ||
| return nil, fmt.Errorf("error: unimplemented authentication method") | ||
| } | ||
|
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| func Create(ci *CreateInfo) (s *Service, err error) { | ||
| ethconn, err := ethclient.Dial(ci.BlockchainHttpEndpoint.Value) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| chainid, err := ethconn.NetworkID(ci.Context) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| signer, err := createSigner(ci.Context, ci.Auth, chainid) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| dbconn, err := repo.Connect(ci.Context, ci.PostgresEndpoint.Value) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return &Service{ | ||
| context: ci.Context, | ||
| dbConn: dbconn, | ||
| ethConn: ethconn, | ||
| signer: signer, | ||
| ticker: time.NewTicker(ci.PollInterval), | ||
| }, nil | ||
| } | ||
|
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| func (s *Service) onTick() error { | ||
| claims, err := s.dbConn.GetComputedClaims(s.context) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| slog.Info("claimer: polling database for computed claims:", "found", len(claims)) | ||
| for _, claim := range(claims) { | ||
| // TODO: detect duplicates? | ||
|
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| slog.Info("claimer: submitting:", "claim", claim) | ||
| instance, err := iconsensus.NewIConsensus(claim.IConsensusAddress, s.ethConn) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| tx, err := instance.SubmitClaim(s.signer, claim.AppAddress, claim.LastBlock, claim.Hash) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| slog.Info("claimer: got receipt", "transaction_hash", tx.Hash()) | ||
| err = s.dbConn.SetClaimAsSubmitted(s.context, claim.ID, tx.Hash()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
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| // TODO: implement quit channel | ||
| func (s *Service) Start() error { | ||
| for { | ||
| select { | ||
| case <-s.ticker.C: | ||
| err := s.onTick() | ||
| if err != nil { | ||
| slog.Error("failed: ", "cause", err) | ||
| } | ||
| // TODO: recreate DBConn on error | ||
| // TODO: recreate EthConn on error | ||
| _ = err | ||
| } | ||
| } | ||
| } |
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