516 lines
18 KiB
Go
516 lines
18 KiB
Go
// Copyright © 2020 Vulcanize, Inc
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"crypto/tls"
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"errors"
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"fmt"
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"math/big"
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"net/http"
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"net/url"
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"os"
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"os/signal"
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"strings"
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"sync"
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"time"
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"github.com/cerc-io/ipld-eth-server/v5/pkg/log"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/mailgun/groupcache/v2"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/statechannels/go-nitro/node/engine"
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"github.com/statechannels/go-nitro/node/engine/chainservice"
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nitroStore "github.com/statechannels/go-nitro/node/engine/store"
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"github.com/statechannels/go-nitro/paymentsmanager"
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"github.com/statechannels/go-nitro/rpc/transport"
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"golang.org/x/exp/slog"
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"github.com/cerc-io/ipld-eth-server/v5/pkg/graphql"
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srpc "github.com/cerc-io/ipld-eth-server/v5/pkg/rpc"
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s "github.com/cerc-io/ipld-eth-server/v5/pkg/serve"
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v "github.com/cerc-io/ipld-eth-server/v5/version"
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nitroNode "github.com/statechannels/go-nitro/node"
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nitrop2pms "github.com/statechannels/go-nitro/node/engine/messageservice/p2p-message-service"
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nitroRpc "github.com/statechannels/go-nitro/rpc"
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nitroHttpTransport "github.com/statechannels/go-nitro/rpc/transport/http"
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)
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var ErrNoRpcEndpoints = errors.New("no rpc endpoints is available")
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// serveCmd represents the serve command
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var serveCmd = &cobra.Command{
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Use: "serve",
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Short: "serve chain data from PG-IPFS",
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Long: `This command configures a VulcanizeDB ipld-eth-server.`,
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Run: func(cmd *cobra.Command, args []string) {
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subCommand = cmd.CalledAs()
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logWithCommand = *log.WithField("SubCommand", subCommand)
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serve()
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},
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}
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func serve() {
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logWithCommand.Infof("ipld-eth-server version: %s", v.VersionWithMeta)
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wg := new(sync.WaitGroup)
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defer wg.Wait()
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serverConfig, err := s.NewConfig()
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if err != nil {
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logWithCommand.Fatal(err)
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}
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logWithCommand.Debugf("server config: %+v", serverConfig)
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server, err := s.NewServer(serverConfig)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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if serverConfig.ForwardEthCalls {
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logWithCommand.Info("Fowarding eth_call")
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}
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if serverConfig.ForwardGetStorageAt {
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logWithCommand.Info("Fowarding eth_getStorageAt")
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}
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if serverConfig.ProxyOnError {
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logWithCommand.Info("Proxy on error is enabled")
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}
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server.Serve(wg)
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var voucherValidator paymentsmanager.VoucherValidator
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// TODO: Refactor into a function / subcommand
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nitroConfig := serverConfig.Nitro
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if nitroConfig.RunNodeInProcess {
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log.Info("Running an in-process Nitro node")
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nitroNode, err := initNitroNode(&nitroConfig.InProcessNode)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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pm, err := paymentsmanager.NewPaymentsManager(nitroNode)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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pm.Start(wg)
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defer pm.Stop()
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rpcPort := nitroConfig.InProcessNode.RpcPort
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tlsCertFilepath := nitroConfig.InProcessNode.TlsCertFilepath
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tlsKeyFilepath := nitroConfig.InProcessNode.TlsKeyFilepath
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var cert *tls.Certificate
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if tlsCertFilepath != "" && tlsKeyFilepath != "" {
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*cert, err = tls.LoadX509KeyPair(tlsCertFilepath, tlsKeyFilepath)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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}
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nitroRpcServer, err := initNitroRpcServer(nitroNode, pm, cert, rpcPort)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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defer nitroRpcServer.Close()
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voucherValidator = paymentsmanager.InProcessVoucherValidator{PaymentsManager: pm}
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} else {
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log.Info("Connecting to a remote Nitro node")
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// TODO: Read from config file
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isSecure := false
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nitroRpcClient, err := nitroRpc.NewHttpRpcClient(nitroConfig.RemoteNode.NitroEndpoint, isSecure)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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defer nitroRpcClient.Close()
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voucherValidator = nitroRpc.RemoteVoucherValidator{Client: nitroRpcClient}
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}
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// TODO: Read from config file
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queryRates := map[string]*big.Int{
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"eth_getBlockByNumber": big.NewInt(50),
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"eth_getBlockByHash": big.NewInt(50),
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"eth_getStorageAt": big.NewInt(50),
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"eth_getLogs": big.NewInt(50),
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}
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if err := startServers(server, serverConfig, voucherValidator, queryRates); err != nil {
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logWithCommand.Fatal(err)
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}
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graphQL, err := startEthGraphQL(server, serverConfig)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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err = startGroupCacheService(serverConfig)
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if err != nil {
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logWithCommand.Fatal(err)
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}
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if serverConfig.StateValidationEnabled {
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go startStateTrieValidator(serverConfig, server)
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logWithCommand.Info("state validator enabled")
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} else {
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logWithCommand.Debug("state validator disabled")
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}
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shutdown := make(chan os.Signal, 1)
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signal.Notify(shutdown, os.Interrupt)
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<-shutdown
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if graphQL != nil {
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graphQL.Stop()
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}
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server.Stop()
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}
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// TODO: Absorb voucherValidator and queryRates args into existing ones
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func startServers(server s.Server, settings *s.Config, voucherValidator paymentsmanager.VoucherValidator, queryRates map[string]*big.Int) error {
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if settings.IPCEnabled {
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logWithCommand.Debug("starting up IPC server")
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_, _, err := srpc.StartIPCEndpoint(settings.IPCEndpoint, server.APIs())
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if err != nil {
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return err
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}
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} else {
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logWithCommand.Debug("IPC server is disabled")
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}
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if settings.WSEnabled {
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logWithCommand.Debug("starting up WS server")
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_, _, err := srpc.StartWSEndpoint(settings.WSEndpoint, server.APIs(), []string{"vdb", "net"}, nil)
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if err != nil {
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return err
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}
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} else {
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logWithCommand.Debug("WS server is disabled")
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}
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if settings.HTTPEnabled {
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logWithCommand.Debug("starting up HTTP server")
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_, err := srpc.StartHTTPEndpoint(settings.HTTPEndpoint, server.APIs(), []string{"vdb", "eth", "debug", "net"}, nil, []string{"*"}, rpc.HTTPTimeouts{}, voucherValidator, queryRates)
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if err != nil {
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return err
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}
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} else {
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logWithCommand.Debug("HTTP server is disabled")
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}
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return nil
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}
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func startEthGraphQL(server s.Server, settings *s.Config) (graphQLServer *graphql.Service, err error) {
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if settings.EthGraphqlEnabled {
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logWithCommand.Debug("starting up ETH GraphQL server")
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endPoint := settings.EthGraphqlEndpoint
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if endPoint != "" {
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graphQLServer, err = graphql.New(server.Backend(), endPoint, nil, []string{"*"}, rpc.HTTPTimeouts{})
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if err != nil {
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return
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}
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err = graphQLServer.Start(nil)
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}
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} else {
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logWithCommand.Debug("ETH GraphQL server is disabled")
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}
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return
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}
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func startGroupCacheService(settings *s.Config) error {
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gcc := settings.GroupCache
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if gcc.Pool.Enabled {
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logWithCommand.Debug("starting up groupcache pool HTTTP server")
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pool := groupcache.NewHTTPPoolOpts(gcc.Pool.HttpEndpoint, &groupcache.HTTPPoolOptions{})
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pool.Set(gcc.Pool.PeerHttpEndpoints...)
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httpURL, err := url.Parse(gcc.Pool.HttpEndpoint)
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if err != nil {
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return err
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}
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server := http.Server{
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Addr: httpURL.Host,
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Handler: pool,
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}
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// Start a HTTP server to listen for peer requests from the groupcache
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go server.ListenAndServe()
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logWithCommand.Infof("groupcache pool endpoint opened at %s", httpURL)
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} else {
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logWithCommand.Debug("Groupcache pool is disabled")
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}
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return nil
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}
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func startStateTrieValidator(config *s.Config, server s.Server) {
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validateEveryNthBlock := config.StateValidationEveryNthBlock
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var lastBlockNumber uint64
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backend := server.Backend()
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for {
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time.Sleep(5 * time.Second)
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block, err := backend.CurrentBlock()
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if err != nil {
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log.Error("Error fetching current block for state trie validator")
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continue
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}
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stateRoot := block.Root()
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blockNumber := block.NumberU64()
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blockHash := block.Hash()
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if validateEveryNthBlock <= 0 || // Used for static replicas where block number doesn't progress.
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(blockNumber > lastBlockNumber) && (blockNumber%validateEveryNthBlock == 0) {
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// The validate trie call will take a long time on mainnet, e.g. a few hours.
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if err = backend.ValidateTrie(stateRoot); err != nil {
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log.Fatalf("Error validating trie for block number %d hash %s state root %s",
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blockNumber,
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blockHash,
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stateRoot,
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)
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}
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log.Infof("Successfully validated trie for block number %d hash %s state root %s",
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blockNumber,
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blockHash,
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stateRoot,
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)
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if validateEveryNthBlock <= 0 {
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// Static replica, sleep a long-ish time (1/2 of cache expiry time) since we only need to keep the cache warm.
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time.Sleep((time.Minute * time.Duration(config.GroupCache.StateDB.CacheExpiryInMins)) / 2)
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}
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lastBlockNumber = blockNumber
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}
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}
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}
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func parseRpcAddresses(value string) ([]*rpc.Client, error) {
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rpcAddresses := strings.Split(value, ",")
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rpcClients := make([]*rpc.Client, 0, len(rpcAddresses))
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for _, address := range rpcAddresses {
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rpcClient, err := rpc.Dial(address)
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if err != nil {
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logWithCommand.Errorf("couldn't connect to %s. Error: %s", address, err)
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continue
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}
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rpcClients = append(rpcClients, rpcClient)
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}
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if len(rpcClients) == 0 {
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logWithCommand.Error(ErrNoRpcEndpoints)
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return nil, ErrNoRpcEndpoints
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}
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return rpcClients, nil
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}
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func init() {
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rootCmd.AddCommand(serveCmd)
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addDatabaseFlags(serveCmd)
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addNitroFlags(serveCmd)
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// flags for all config variables
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// eth graphql and json-rpc parameters
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serveCmd.PersistentFlags().Bool("server-graphql", false, "turn on the eth graphql server")
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serveCmd.PersistentFlags().String("server-graphql-path", "", "endpoint url for eth graphql server (host:port)")
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serveCmd.PersistentFlags().Bool("server-http", true, "turn on the eth http json-rpc server")
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serveCmd.PersistentFlags().String("server-http-path", "", "endpoint url for eth http json-rpc server (host:port)")
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serveCmd.PersistentFlags().Bool("server-ws", false, "turn on the eth websocket json-rpc server")
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serveCmd.PersistentFlags().String("server-ws-path", "", "endpoint url for eth websocket json-rpc server (host:port)")
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serveCmd.PersistentFlags().Bool("server-ipc", false, "turn on the eth ipc json-rpc server")
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serveCmd.PersistentFlags().String("server-ipc-path", "", "path for eth ipc json-rpc server")
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serveCmd.PersistentFlags().String("eth-http-path", "", "http url for ethereum node")
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serveCmd.PersistentFlags().String("eth-node-id", "", "eth node id")
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serveCmd.PersistentFlags().String("eth-client-name", "Geth", "eth client name")
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serveCmd.PersistentFlags().String("eth-genesis-block", "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3", "eth genesis block hash")
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serveCmd.PersistentFlags().String("eth-network-id", "1", "eth network id")
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serveCmd.PersistentFlags().String("eth-chain-id", "1", "eth chain id")
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serveCmd.PersistentFlags().String("eth-default-sender", "", "default sender address")
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serveCmd.PersistentFlags().String("eth-rpc-gas-cap", "", "rpc gas cap (for eth_Call execution)")
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serveCmd.PersistentFlags().String("eth-chain-config", "", "json chain config file location")
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serveCmd.PersistentFlags().Bool("eth-supports-state-diff", false, "whether the proxy ethereum client supports statediffing endpoints")
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serveCmd.PersistentFlags().Bool("eth-forward-eth-calls", false, "whether to immediately forward eth_calls to proxy client")
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serveCmd.PersistentFlags().Bool("eth-proxy-on-error", true, "whether to forward all failed calls to proxy client")
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// groupcache flags
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serveCmd.PersistentFlags().Bool("gcache-pool-enabled", false, "turn on the groupcache pool")
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serveCmd.PersistentFlags().String("gcache-pool-http-path", "", "http url for groupcache node")
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serveCmd.PersistentFlags().StringArray("gcache-pool-http-peers", []string{}, "http urls for groupcache peers")
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serveCmd.PersistentFlags().Int("gcache-statedb-cache-size", 16, "state DB cache size in MB")
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serveCmd.PersistentFlags().Int("gcache-statedb-cache-expiry", 60, "state DB cache expiry time in mins")
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serveCmd.PersistentFlags().Int("gcache-statedb-log-stats-interval", 60, "state DB cache stats log interval in secs")
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// state validator flags
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serveCmd.PersistentFlags().Bool("validator-enabled", false, "turn on the state validator")
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serveCmd.PersistentFlags().Uint("validator-every-nth-block", 1500, "only validate every Nth block")
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// and their bindings
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// eth graphql server
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viper.BindPFlag("server.graphql", serveCmd.PersistentFlags().Lookup("server-graphql"))
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viper.BindPFlag("server.graphqlPath", serveCmd.PersistentFlags().Lookup("server-graphql-path"))
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// eth http json-rpc server
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viper.BindPFlag("server.http", serveCmd.PersistentFlags().Lookup("server-http"))
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viper.BindPFlag("server.httpPath", serveCmd.PersistentFlags().Lookup("server-http-path"))
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// eth websocket json-rpc server
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viper.BindPFlag("server.ws", serveCmd.PersistentFlags().Lookup("server-ws"))
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viper.BindPFlag("server.wsPath", serveCmd.PersistentFlags().Lookup("server-ws-path"))
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// eth ipc json-rpc server
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viper.BindPFlag("server.ipc", serveCmd.PersistentFlags().Lookup("server-ipc"))
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viper.BindPFlag("server.ipcPath", serveCmd.PersistentFlags().Lookup("server-ipc-path"))
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viper.BindPFlag("ethereum.httpPath", serveCmd.PersistentFlags().Lookup("eth-http-path"))
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viper.BindPFlag("ethereum.nodeID", serveCmd.PersistentFlags().Lookup("eth-node-id"))
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viper.BindPFlag("ethereum.clientName", serveCmd.PersistentFlags().Lookup("eth-client-name"))
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viper.BindPFlag("ethereum.genesisBlock", serveCmd.PersistentFlags().Lookup("eth-genesis-block"))
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viper.BindPFlag("ethereum.networkID", serveCmd.PersistentFlags().Lookup("eth-network-id"))
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viper.BindPFlag("ethereum.chainID", serveCmd.PersistentFlags().Lookup("eth-chain-id"))
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viper.BindPFlag("ethereum.rpcGasCap", serveCmd.PersistentFlags().Lookup("eth-rpc-gas-cap"))
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viper.BindPFlag("ethereum.chainConfig", serveCmd.PersistentFlags().Lookup("eth-chain-config"))
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viper.BindPFlag("ethereum.supportsStateDiff", serveCmd.PersistentFlags().Lookup("eth-supports-state-diff"))
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viper.BindPFlag("ethereum.forwardEthCalls", serveCmd.PersistentFlags().Lookup("eth-forward-eth-calls"))
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viper.BindPFlag("ethereum.forwardGetStorageAt", serveCmd.PersistentFlags().Lookup("eth-forward-get-storage-at"))
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viper.BindPFlag("ethereum.proxyOnError", serveCmd.PersistentFlags().Lookup("eth-proxy-on-error"))
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viper.BindPFlag("ethereum.getLogsBlockLimit", serveCmd.PersistentFlags().Lookup("eth-getlogs-block-limit"))
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// groupcache flags
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viper.BindPFlag("groupcache.pool.enabled", serveCmd.PersistentFlags().Lookup("gcache-pool-enabled"))
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viper.BindPFlag("groupcache.pool.httpEndpoint", serveCmd.PersistentFlags().Lookup("gcache-pool-http-path"))
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viper.BindPFlag("groupcache.pool.peerHttpEndpoints", serveCmd.PersistentFlags().Lookup("gcache-pool-http-peers"))
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viper.BindPFlag("groupcache.statedb.cacheSizeInMB", serveCmd.PersistentFlags().Lookup("gcache-statedb-cache-size"))
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viper.BindPFlag("groupcache.statedb.cacheExpiryInMins", serveCmd.PersistentFlags().Lookup("gcache-statedb-cache-expiry"))
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viper.BindPFlag("groupcache.statedb.logStatsIntervalInSecs", serveCmd.PersistentFlags().Lookup("gcache-statedb-log-stats-interval"))
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// state validator flags
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viper.BindPFlag("validator.enabled", serveCmd.PersistentFlags().Lookup("validator-enabled"))
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viper.BindPFlag("validator.everyNthBlock", serveCmd.PersistentFlags().Lookup("validator-every-nth-block"))
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}
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// https://github.com/cerc-io/go-nitro/blob/release-v0.1.1-ts-port-0.1.7/internal/node/node.go#L17
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func initNitroNode(config *s.InProcessNitroNodeConfig) (*nitroNode.Node, error) {
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pkString := config.Pk
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useDurableStore := config.UseDurableStore
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durableStoreFolder := config.DurableStoreFolder
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msgPort := config.MsgPort
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wsMsgPort := config.WsMsgPort
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chainUrl := config.ChainUrl
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chainStartBlock := config.ChainStartBlock
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chainPk := config.ChainPk
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naAddress := config.NaAddress
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vpaAddress := config.VpaAddress
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caAddress := config.CaAddress
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chainAuthToken := ""
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publicIp := "0.0.0.0"
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chainOpts := chainservice.ChainOpts{
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ChainUrl: chainUrl,
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ChainStartBlock: chainStartBlock,
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ChainAuthToken: chainAuthToken,
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ChainPk: chainPk,
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NaAddress: common.HexToAddress(naAddress),
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VpaAddress: common.HexToAddress(vpaAddress),
|
|
CaAddress: common.HexToAddress(caAddress),
|
|
}
|
|
|
|
storeOpts := nitroStore.StoreOpts{
|
|
PkBytes: common.Hex2Bytes(pkString),
|
|
UseDurableStore: useDurableStore,
|
|
DurableStoreFolder: durableStoreFolder,
|
|
}
|
|
|
|
bootPeers := []string{}
|
|
messageOpts := nitrop2pms.MessageOpts{
|
|
PkBytes: common.Hex2Bytes(pkString),
|
|
TcpPort: msgPort,
|
|
WsMsgPort: wsMsgPort,
|
|
BootPeers: bootPeers,
|
|
PublicIp: publicIp,
|
|
}
|
|
|
|
ourStore, err := nitroStore.NewStore(storeOpts)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
log.Info("Initializing message service...", " tcp port=", msgPort, " web socket port=", wsMsgPort)
|
|
messageService := nitrop2pms.NewMessageService(messageOpts)
|
|
|
|
// Compare chainOpts.ChainStartBlock to lastBlockNum seen in store. The larger of the two
|
|
// gets passed as an argument when creating NewEthChainService
|
|
storeBlockNum, err := ourStore.GetLastBlockNumSeen()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if storeBlockNum > chainOpts.ChainStartBlock {
|
|
chainOpts.ChainStartBlock = storeBlockNum
|
|
}
|
|
|
|
log.Info("Initializing chain service...")
|
|
ourChain, err := chainservice.NewEthChainService(chainOpts)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
node := nitroNode.New(
|
|
messageService,
|
|
ourChain,
|
|
ourStore,
|
|
&engine.PermissivePolicy{},
|
|
)
|
|
|
|
return &node, nil
|
|
}
|
|
|
|
func initNitroRpcServer(node *nitroNode.Node, pm paymentsmanager.PaymentsManager, cert *tls.Certificate, rpcPort int) (*nitroRpc.RpcServer, error) {
|
|
var transport transport.Responder
|
|
var err error
|
|
|
|
slog.Info("Initializing Nitro HTTP RPC transport...")
|
|
transport, err = nitroHttpTransport.NewHttpTransportAsServer(fmt.Sprint(rpcPort), cert)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
rpcServer, err := nitroRpc.NewRpcServer(node, pm, transport)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slog.Info("Completed Nitro RPC server initialization")
|
|
return rpcServer, nil
|
|
}
|