mirror of https://github.com/status-im/op-geth.git
539 lines
16 KiB
Go
539 lines
16 KiB
Go
// Copyright 2018 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library 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 Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package swarm
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"crypto/ecdsa"
|
|
"fmt"
|
|
"io"
|
|
"math/big"
|
|
"net"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
"unicode"
|
|
|
|
"github.com/ethereum/go-ethereum/accounts/abi/bind"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/contracts/chequebook"
|
|
"github.com/ethereum/go-ethereum/contracts/ens"
|
|
"github.com/ethereum/go-ethereum/ethclient"
|
|
"github.com/ethereum/go-ethereum/metrics"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/ethereum/go-ethereum/p2p/protocols"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/ethereum/go-ethereum/swarm/api"
|
|
httpapi "github.com/ethereum/go-ethereum/swarm/api/http"
|
|
"github.com/ethereum/go-ethereum/swarm/fuse"
|
|
"github.com/ethereum/go-ethereum/swarm/log"
|
|
"github.com/ethereum/go-ethereum/swarm/network"
|
|
"github.com/ethereum/go-ethereum/swarm/network/stream"
|
|
"github.com/ethereum/go-ethereum/swarm/pss"
|
|
"github.com/ethereum/go-ethereum/swarm/state"
|
|
"github.com/ethereum/go-ethereum/swarm/storage"
|
|
"github.com/ethereum/go-ethereum/swarm/storage/feed"
|
|
"github.com/ethereum/go-ethereum/swarm/storage/mock"
|
|
"github.com/ethereum/go-ethereum/swarm/swap"
|
|
"github.com/ethereum/go-ethereum/swarm/tracing"
|
|
)
|
|
|
|
var (
|
|
updateGaugesPeriod = 5 * time.Second
|
|
startCounter = metrics.NewRegisteredCounter("stack,start", nil)
|
|
stopCounter = metrics.NewRegisteredCounter("stack,stop", nil)
|
|
uptimeGauge = metrics.NewRegisteredGauge("stack.uptime", nil)
|
|
requestsCacheGauge = metrics.NewRegisteredGauge("storage.cache.requests.size", nil)
|
|
)
|
|
|
|
// the swarm stack
|
|
type Swarm struct {
|
|
config *api.Config // swarm configuration
|
|
api *api.API // high level api layer (fs/manifest)
|
|
dns api.Resolver // DNS registrar
|
|
fileStore *storage.FileStore // distributed preimage archive, the local API to the storage with document level storage/retrieval support
|
|
streamer *stream.Registry
|
|
bzz *network.Bzz // the logistic manager
|
|
backend chequebook.Backend // simple blockchain Backend
|
|
privateKey *ecdsa.PrivateKey
|
|
netStore *storage.NetStore
|
|
sfs *fuse.SwarmFS // need this to cleanup all the active mounts on node exit
|
|
ps *pss.Pss
|
|
swap *swap.Swap
|
|
stateStore *state.DBStore
|
|
accountingMetrics *protocols.AccountingMetrics
|
|
startTime time.Time
|
|
|
|
tracerClose io.Closer
|
|
}
|
|
|
|
// NewSwarm creates a new swarm service instance
|
|
// implements node.Service
|
|
// If mockStore is not nil, it will be used as the storage for chunk data.
|
|
// MockStore should be used only for testing.
|
|
func NewSwarm(config *api.Config, mockStore *mock.NodeStore) (self *Swarm, err error) {
|
|
if bytes.Equal(common.FromHex(config.PublicKey), storage.ZeroAddr) {
|
|
return nil, fmt.Errorf("empty public key")
|
|
}
|
|
if bytes.Equal(common.FromHex(config.BzzKey), storage.ZeroAddr) {
|
|
return nil, fmt.Errorf("empty bzz key")
|
|
}
|
|
|
|
var backend chequebook.Backend
|
|
if config.SwapAPI != "" && config.SwapEnabled {
|
|
log.Info("connecting to SWAP API", "url", config.SwapAPI)
|
|
backend, err = ethclient.Dial(config.SwapAPI)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error connecting to SWAP API %s: %s", config.SwapAPI, err)
|
|
}
|
|
}
|
|
|
|
self = &Swarm{
|
|
config: config,
|
|
backend: backend,
|
|
privateKey: config.ShiftPrivateKey(),
|
|
}
|
|
log.Debug("Setting up Swarm service components")
|
|
|
|
config.HiveParams.Discovery = true
|
|
|
|
bzzconfig := &network.BzzConfig{
|
|
NetworkID: config.NetworkID,
|
|
OverlayAddr: common.FromHex(config.BzzKey),
|
|
HiveParams: config.HiveParams,
|
|
LightNode: config.LightNodeEnabled,
|
|
BootnodeMode: config.BootnodeMode,
|
|
}
|
|
|
|
self.stateStore, err = state.NewDBStore(filepath.Join(config.Path, "state-store.db"))
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// set up high level api
|
|
var resolver *api.MultiResolver
|
|
if len(config.EnsAPIs) > 0 {
|
|
opts := []api.MultiResolverOption{}
|
|
for _, c := range config.EnsAPIs {
|
|
tld, endpoint, addr := parseEnsAPIAddress(c)
|
|
r, err := newEnsClient(endpoint, addr, config, self.privateKey)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
opts = append(opts, api.MultiResolverOptionWithResolver(r, tld))
|
|
|
|
}
|
|
resolver = api.NewMultiResolver(opts...)
|
|
self.dns = resolver
|
|
}
|
|
|
|
lstore, err := storage.NewLocalStore(config.LocalStoreParams, mockStore)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
self.netStore, err = storage.NewNetStore(lstore, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
to := network.NewKademlia(
|
|
common.FromHex(config.BzzKey),
|
|
network.NewKadParams(),
|
|
)
|
|
delivery := stream.NewDelivery(to, self.netStore)
|
|
self.netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, config.DeliverySkipCheck).New
|
|
|
|
if config.SwapEnabled {
|
|
balancesStore, err := state.NewDBStore(filepath.Join(config.Path, "balances.db"))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
self.swap = swap.New(balancesStore)
|
|
self.accountingMetrics = protocols.SetupAccountingMetrics(10*time.Second, filepath.Join(config.Path, "metrics.db"))
|
|
}
|
|
|
|
var nodeID enode.ID
|
|
if err := nodeID.UnmarshalText([]byte(config.NodeID)); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
syncing := stream.SyncingAutoSubscribe
|
|
if !config.SyncEnabled || config.LightNodeEnabled {
|
|
syncing = stream.SyncingDisabled
|
|
}
|
|
|
|
retrieval := stream.RetrievalEnabled
|
|
if config.LightNodeEnabled {
|
|
retrieval = stream.RetrievalClientOnly
|
|
}
|
|
|
|
registryOptions := &stream.RegistryOptions{
|
|
SkipCheck: config.DeliverySkipCheck,
|
|
Syncing: syncing,
|
|
Retrieval: retrieval,
|
|
SyncUpdateDelay: config.SyncUpdateDelay,
|
|
MaxPeerServers: config.MaxStreamPeerServers,
|
|
}
|
|
self.streamer = stream.NewRegistry(nodeID, delivery, self.netStore, self.stateStore, registryOptions, self.swap)
|
|
|
|
// Swarm Hash Merklised Chunking for Arbitrary-length Document/File storage
|
|
self.fileStore = storage.NewFileStore(self.netStore, self.config.FileStoreParams)
|
|
|
|
var feedsHandler *feed.Handler
|
|
fhParams := &feed.HandlerParams{}
|
|
|
|
feedsHandler = feed.NewHandler(fhParams)
|
|
feedsHandler.SetStore(self.netStore)
|
|
|
|
lstore.Validators = []storage.ChunkValidator{
|
|
storage.NewContentAddressValidator(storage.MakeHashFunc(storage.DefaultHash)),
|
|
feedsHandler,
|
|
}
|
|
|
|
err = lstore.Migrate()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
log.Debug("Setup local storage")
|
|
|
|
self.bzz = network.NewBzz(bzzconfig, to, self.stateStore, self.streamer.GetSpec(), self.streamer.Run)
|
|
|
|
// Pss = postal service over swarm (devp2p over bzz)
|
|
self.ps, err = pss.NewPss(to, config.Pss)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if pss.IsActiveHandshake {
|
|
pss.SetHandshakeController(self.ps, pss.NewHandshakeParams())
|
|
}
|
|
|
|
self.api = api.NewAPI(self.fileStore, self.dns, feedsHandler, self.privateKey)
|
|
|
|
self.sfs = fuse.NewSwarmFS(self.api)
|
|
log.Debug("Initialized FUSE filesystem")
|
|
|
|
return self, nil
|
|
}
|
|
|
|
// parseEnsAPIAddress parses string according to format
|
|
// [tld:][contract-addr@]url and returns ENSClientConfig structure
|
|
// with endpoint, contract address and TLD.
|
|
func parseEnsAPIAddress(s string) (tld, endpoint string, addr common.Address) {
|
|
isAllLetterString := func(s string) bool {
|
|
for _, r := range s {
|
|
if !unicode.IsLetter(r) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
endpoint = s
|
|
if i := strings.Index(endpoint, ":"); i > 0 {
|
|
if isAllLetterString(endpoint[:i]) && len(endpoint) > i+2 && endpoint[i+1:i+3] != "//" {
|
|
tld = endpoint[:i]
|
|
endpoint = endpoint[i+1:]
|
|
}
|
|
}
|
|
if i := strings.Index(endpoint, "@"); i > 0 {
|
|
addr = common.HexToAddress(endpoint[:i])
|
|
endpoint = endpoint[i+1:]
|
|
}
|
|
return
|
|
}
|
|
|
|
// ensClient provides functionality for api.ResolveValidator
|
|
type ensClient struct {
|
|
*ens.ENS
|
|
*ethclient.Client
|
|
}
|
|
|
|
// newEnsClient creates a new ENS client for that is a consumer of
|
|
// a ENS API on a specific endpoint. It is used as a helper function
|
|
// for creating multiple resolvers in NewSwarm function.
|
|
func newEnsClient(endpoint string, addr common.Address, config *api.Config, privkey *ecdsa.PrivateKey) (*ensClient, error) {
|
|
log.Info("connecting to ENS API", "url", endpoint)
|
|
client, err := rpc.Dial(endpoint)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error connecting to ENS API %s: %s", endpoint, err)
|
|
}
|
|
ethClient := ethclient.NewClient(client)
|
|
|
|
ensRoot := config.EnsRoot
|
|
if addr != (common.Address{}) {
|
|
ensRoot = addr
|
|
} else {
|
|
a, err := detectEnsAddr(client)
|
|
if err == nil {
|
|
ensRoot = a
|
|
} else {
|
|
log.Warn(fmt.Sprintf("could not determine ENS contract address, using default %s", ensRoot), "err", err)
|
|
}
|
|
}
|
|
transactOpts := bind.NewKeyedTransactor(privkey)
|
|
dns, err := ens.NewENS(transactOpts, ensRoot, ethClient)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
log.Debug(fmt.Sprintf("-> Swarm Domain Name Registrar %v @ address %v", endpoint, ensRoot.Hex()))
|
|
return &ensClient{
|
|
ENS: dns,
|
|
Client: ethClient,
|
|
}, err
|
|
}
|
|
|
|
// detectEnsAddr determines the ENS contract address by getting both the
|
|
// version and genesis hash using the client and matching them to either
|
|
// mainnet or testnet addresses
|
|
func detectEnsAddr(client *rpc.Client) (common.Address, error) {
|
|
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
|
defer cancel()
|
|
|
|
var version string
|
|
if err := client.CallContext(ctx, &version, "net_version"); err != nil {
|
|
return common.Address{}, err
|
|
}
|
|
|
|
block, err := ethclient.NewClient(client).BlockByNumber(ctx, big.NewInt(0))
|
|
if err != nil {
|
|
return common.Address{}, err
|
|
}
|
|
|
|
switch {
|
|
|
|
case version == "1" && block.Hash() == params.MainnetGenesisHash:
|
|
log.Info("using Mainnet ENS contract address", "addr", ens.MainNetAddress)
|
|
return ens.MainNetAddress, nil
|
|
|
|
case version == "3" && block.Hash() == params.TestnetGenesisHash:
|
|
log.Info("using Testnet ENS contract address", "addr", ens.TestNetAddress)
|
|
return ens.TestNetAddress, nil
|
|
|
|
default:
|
|
return common.Address{}, fmt.Errorf("unknown version and genesis hash: %s %s", version, block.Hash())
|
|
}
|
|
}
|
|
|
|
/*
|
|
Start is called when the stack is started
|
|
* starts the network kademlia hive peer management
|
|
* (starts netStore level 0 api)
|
|
* starts DPA level 1 api (chunking -> store/retrieve requests)
|
|
* (starts level 2 api)
|
|
* starts http proxy server
|
|
* registers url scheme handlers for bzz, etc
|
|
* TODO: start subservices like sword, swear, swarmdns
|
|
*/
|
|
// implements the node.Service interface
|
|
func (self *Swarm) Start(srv *p2p.Server) error {
|
|
self.startTime = time.Now()
|
|
|
|
self.tracerClose = tracing.Closer
|
|
|
|
// update uaddr to correct enode
|
|
newaddr := self.bzz.UpdateLocalAddr([]byte(srv.Self().String()))
|
|
log.Info("Updated bzz local addr", "oaddr", fmt.Sprintf("%x", newaddr.OAddr), "uaddr", fmt.Sprintf("%s", newaddr.UAddr))
|
|
// set chequebook
|
|
//TODO: Currently if swap is enabled and no chequebook (or inexistent) contract is provided, the node would crash.
|
|
//Once we integrate back the contracts, this check MUST be revisited
|
|
if self.config.SwapEnabled && self.config.SwapAPI != "" {
|
|
ctx := context.Background() // The initial setup has no deadline.
|
|
err := self.SetChequebook(ctx)
|
|
if err != nil {
|
|
return fmt.Errorf("Unable to set chequebook for SWAP: %v", err)
|
|
}
|
|
log.Debug(fmt.Sprintf("-> cheque book for SWAP: %v", self.config.Swap.Chequebook()))
|
|
} else {
|
|
log.Debug(fmt.Sprintf("SWAP disabled: no cheque book set"))
|
|
}
|
|
|
|
log.Info("Starting bzz service")
|
|
|
|
err := self.bzz.Start(srv)
|
|
if err != nil {
|
|
log.Error("bzz failed", "err", err)
|
|
return err
|
|
}
|
|
log.Info("Swarm network started", "bzzaddr", fmt.Sprintf("%x", self.bzz.Hive.BaseAddr()))
|
|
|
|
if self.ps != nil {
|
|
self.ps.Start(srv)
|
|
}
|
|
|
|
// start swarm http proxy server
|
|
if self.config.Port != "" {
|
|
addr := net.JoinHostPort(self.config.ListenAddr, self.config.Port)
|
|
server := httpapi.NewServer(self.api, self.config.Cors)
|
|
|
|
if self.config.Cors != "" {
|
|
log.Debug("Swarm HTTP proxy CORS headers", "allowedOrigins", self.config.Cors)
|
|
}
|
|
|
|
log.Debug("Starting Swarm HTTP proxy", "port", self.config.Port)
|
|
go func() {
|
|
err := server.ListenAndServe(addr)
|
|
if err != nil {
|
|
log.Error("Could not start Swarm HTTP proxy", "err", err.Error())
|
|
}
|
|
}()
|
|
}
|
|
|
|
self.periodicallyUpdateGauges()
|
|
|
|
startCounter.Inc(1)
|
|
self.streamer.Start(srv)
|
|
return nil
|
|
}
|
|
|
|
func (self *Swarm) periodicallyUpdateGauges() {
|
|
ticker := time.NewTicker(updateGaugesPeriod)
|
|
|
|
go func() {
|
|
for range ticker.C {
|
|
self.updateGauges()
|
|
}
|
|
}()
|
|
}
|
|
|
|
func (self *Swarm) updateGauges() {
|
|
uptimeGauge.Update(time.Since(self.startTime).Nanoseconds())
|
|
requestsCacheGauge.Update(int64(self.netStore.RequestsCacheLen()))
|
|
}
|
|
|
|
// implements the node.Service interface
|
|
// stops all component services.
|
|
func (self *Swarm) Stop() error {
|
|
if self.tracerClose != nil {
|
|
err := self.tracerClose.Close()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if self.ps != nil {
|
|
self.ps.Stop()
|
|
}
|
|
if ch := self.config.Swap.Chequebook(); ch != nil {
|
|
ch.Stop()
|
|
ch.Save()
|
|
}
|
|
if self.swap != nil {
|
|
self.swap.Close()
|
|
}
|
|
if self.accountingMetrics != nil {
|
|
self.accountingMetrics.Close()
|
|
}
|
|
if self.netStore != nil {
|
|
self.netStore.Close()
|
|
}
|
|
self.sfs.Stop()
|
|
stopCounter.Inc(1)
|
|
self.streamer.Stop()
|
|
|
|
err := self.bzz.Stop()
|
|
if self.stateStore != nil {
|
|
self.stateStore.Close()
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Protocols implements the node.Service interface
|
|
func (s *Swarm) Protocols() (protos []p2p.Protocol) {
|
|
if s.config.BootnodeMode {
|
|
protos = append(protos, s.bzz.Protocols()...)
|
|
} else {
|
|
protos = append(protos, s.bzz.Protocols()...)
|
|
|
|
if s.ps != nil {
|
|
protos = append(protos, s.ps.Protocols()...)
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
// implements node.Service
|
|
// APIs returns the RPC API descriptors the Swarm implementation offers
|
|
func (self *Swarm) APIs() []rpc.API {
|
|
|
|
apis := []rpc.API{
|
|
// public APIs
|
|
{
|
|
Namespace: "bzz",
|
|
Version: "3.0",
|
|
Service: &Info{self.config, chequebook.ContractParams},
|
|
Public: true,
|
|
},
|
|
// admin APIs
|
|
{
|
|
Namespace: "bzz",
|
|
Version: "3.0",
|
|
Service: api.NewControl(self.api, self.bzz.Hive),
|
|
Public: false,
|
|
},
|
|
{
|
|
Namespace: "chequebook",
|
|
Version: chequebook.Version,
|
|
Service: chequebook.NewApi(self.config.Swap.Chequebook),
|
|
Public: false,
|
|
},
|
|
{
|
|
Namespace: "swarmfs",
|
|
Version: fuse.Swarmfs_Version,
|
|
Service: self.sfs,
|
|
Public: false,
|
|
},
|
|
{
|
|
Namespace: "accounting",
|
|
Version: protocols.AccountingVersion,
|
|
Service: protocols.NewAccountingApi(self.accountingMetrics),
|
|
Public: false,
|
|
},
|
|
}
|
|
|
|
apis = append(apis, self.bzz.APIs()...)
|
|
|
|
if self.ps != nil {
|
|
apis = append(apis, self.ps.APIs()...)
|
|
}
|
|
|
|
return apis
|
|
}
|
|
|
|
// SetChequebook ensures that the local checquebook is set up on chain.
|
|
func (self *Swarm) SetChequebook(ctx context.Context) error {
|
|
err := self.config.Swap.SetChequebook(ctx, self.backend, self.config.Path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Info(fmt.Sprintf("new chequebook set (%v): saving config file, resetting all connections in the hive", self.config.Swap.Contract.Hex()))
|
|
return nil
|
|
}
|
|
|
|
// serialisable info about swarm
|
|
type Info struct {
|
|
*api.Config
|
|
*chequebook.Params
|
|
}
|
|
|
|
func (self *Info) Info() *Info {
|
|
return self
|
|
}
|