node/get_status_node.go
package node
import (
"database/sql"
"errors"
"fmt"
"net"
"os"
"path/filepath"
"reflect"
"sync"
ma "github.com/multiformats/go-multiaddr"
"github.com/syndtr/goleveldb/leveldb"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/enr"
"github.com/status-im/status-go/account"
"github.com/status-im/status-go/common"
"github.com/status-im/status-go/connection"
"github.com/status-im/status-go/db"
"github.com/status-im/status-go/discovery"
"github.com/status-im/status-go/ipfs"
"github.com/status-im/status-go/multiaccounts"
"github.com/status-im/status-go/params"
"github.com/status-im/status-go/peers"
"github.com/status-im/status-go/rpc"
"github.com/status-im/status-go/server"
accountssvc "github.com/status-im/status-go/services/accounts"
appmetricsservice "github.com/status-im/status-go/services/appmetrics"
"github.com/status-im/status-go/services/browsers"
"github.com/status-im/status-go/services/chat"
"github.com/status-im/status-go/services/communitytokens"
"github.com/status-im/status-go/services/connector"
"github.com/status-im/status-go/services/ens"
"github.com/status-im/status-go/services/gif"
localnotifications "github.com/status-im/status-go/services/local-notifications"
"github.com/status-im/status-go/services/mailservers"
"github.com/status-im/status-go/services/peer"
"github.com/status-im/status-go/services/permissions"
"github.com/status-im/status-go/services/personal"
"github.com/status-im/status-go/services/rpcfilters"
"github.com/status-im/status-go/services/rpcstats"
"github.com/status-im/status-go/services/status"
"github.com/status-im/status-go/services/stickers"
"github.com/status-im/status-go/services/subscriptions"
"github.com/status-im/status-go/services/updates"
"github.com/status-im/status-go/services/wakuext"
"github.com/status-im/status-go/services/wakuv2ext"
"github.com/status-im/status-go/services/wallet"
"github.com/status-im/status-go/services/web3provider"
"github.com/status-im/status-go/timesource"
"github.com/status-im/status-go/transactions"
"github.com/status-im/status-go/waku"
"github.com/status-im/status-go/wakuv2"
)
// errors
var (
ErrNodeRunning = errors.New("node is already running")
ErrNoGethNode = errors.New("geth node is not available")
ErrNoRunningNode = errors.New("there is no running node")
ErrAccountKeyStoreMissing = errors.New("account key store is not set")
ErrServiceUnknown = errors.New("service unknown")
ErrDiscoveryRunning = errors.New("discovery is already running")
ErrRPCMethodUnavailable = `{"jsonrpc":"2.0","id":1,"error":{"code":-32601,"message":"the method called does not exist/is not available"}}`
)
// StatusNode abstracts contained geth node and provides helper methods to
// interact with it.
type StatusNode struct {
mu sync.RWMutex
appDB *sql.DB
multiaccountsDB *multiaccounts.Database
walletDB *sql.DB
config *params.NodeConfig // Status node configuration
gethNode *node.Node // reference to Geth P2P stack/node
rpcClient *rpc.Client // reference to an RPC client
downloader *ipfs.Downloader
httpServer *server.MediaServer
discovery discovery.Discovery
register *peers.Register
peerPool *peers.PeerPool
db *leveldb.DB // used as a cache for PeerPool
log log.Logger
gethAccountManager *account.GethManager
accountsManager *accounts.Manager
transactor *transactions.Transactor
// services
services []common.StatusService
publicMethods map[string]bool
// we explicitly list every service, we could use interfaces
// and store them in a nicer way and user reflection, but for now stupid is good
rpcFiltersSrvc *rpcfilters.Service
subscriptionsSrvc *subscriptions.Service
rpcStatsSrvc *rpcstats.Service
statusPublicSrvc *status.Service
accountsSrvc *accountssvc.Service
browsersSrvc *browsers.Service
permissionsSrvc *permissions.Service
mailserversSrvc *mailservers.Service
providerSrvc *web3provider.Service
appMetricsSrvc *appmetricsservice.Service
walletSrvc *wallet.Service
peerSrvc *peer.Service
localNotificationsSrvc *localnotifications.Service
personalSrvc *personal.Service
timeSourceSrvc *timesource.NTPTimeSource
wakuSrvc *waku.Waku
wakuExtSrvc *wakuext.Service
wakuV2Srvc *wakuv2.Waku
wakuV2ExtSrvc *wakuv2ext.Service
ensSrvc *ens.Service
communityTokensSrvc *communitytokens.Service
gifSrvc *gif.Service
stickersSrvc *stickers.Service
chatSrvc *chat.Service
updatesSrvc *updates.Service
pendingTracker *transactions.PendingTxTracker
connectorSrvc *connector.Service
walletFeed event.Feed
}
// New makes new instance of StatusNode.
func New(transactor *transactions.Transactor) *StatusNode {
return &StatusNode{
gethAccountManager: account.NewGethManager(),
transactor: transactor,
log: log.New("package", "status-go/node.StatusNode"),
publicMethods: make(map[string]bool),
}
}
// Config exposes reference to running node's configuration
func (n *StatusNode) Config() *params.NodeConfig {
n.mu.RLock()
defer n.mu.RUnlock()
return n.config
}
// GethNode returns underlying geth node.
func (n *StatusNode) GethNode() *node.Node {
n.mu.RLock()
defer n.mu.RUnlock()
return n.gethNode
}
func (n *StatusNode) HTTPServer() *server.MediaServer {
n.mu.RLock()
defer n.mu.RUnlock()
return n.httpServer
}
// Server retrieves the currently running P2P network layer.
func (n *StatusNode) Server() *p2p.Server {
n.mu.RLock()
defer n.mu.RUnlock()
if n.gethNode == nil {
return nil
}
return n.gethNode.Server()
}
// Start starts current StatusNode, failing if it's already started.
// It accepts a list of services that should be added to the node.
func (n *StatusNode) Start(config *params.NodeConfig, accs *accounts.Manager) error {
return n.StartWithOptions(config, StartOptions{
StartDiscovery: true,
AccountsManager: accs,
})
}
// StartOptions allows to control some parameters of Start() method.
type StartOptions struct {
StartDiscovery bool
AccountsManager *accounts.Manager
}
// StartMediaServerWithoutDB starts media server without starting the node
// The server can only handle requests that don't require appdb or IPFS downloader
func (n *StatusNode) StartMediaServerWithoutDB() error {
if n.isRunning() {
n.log.Debug("node is already running, no need to StartMediaServerWithoutDB")
return nil
}
if n.httpServer != nil {
if err := n.httpServer.Stop(); err != nil {
return err
}
}
httpServer, err := server.NewMediaServer(nil, nil, n.multiaccountsDB, nil)
if err != nil {
return err
}
n.httpServer = httpServer
if err := n.httpServer.Start(); err != nil {
return err
}
return nil
}
// StartWithOptions starts current StatusNode, failing if it's already started.
// It takes some options that allows to further configure starting process.
func (n *StatusNode) StartWithOptions(config *params.NodeConfig, options StartOptions) error {
n.mu.Lock()
defer n.mu.Unlock()
if n.isRunning() {
n.log.Debug("node is already running")
return ErrNodeRunning
}
n.accountsManager = options.AccountsManager
n.log.Debug("starting with options", "ClusterConfig", config.ClusterConfig)
db, err := db.Create(config.DataDir, params.StatusDatabase)
if err != nil {
return fmt.Errorf("failed to create database at %s: %v", config.DataDir, err)
}
n.db = db
err = n.startWithDB(config, options.AccountsManager, db)
// continue only if there was no error when starting node with a db
if err == nil && options.StartDiscovery && n.discoveryEnabled() {
err = n.startDiscovery()
}
if err != nil {
if dberr := db.Close(); dberr != nil {
n.log.Error("error while closing leveldb after node crash", "error", dberr)
}
n.db = nil
return err
}
return nil
}
func (n *StatusNode) startWithDB(config *params.NodeConfig, accs *accounts.Manager, db *leveldb.DB) error {
if err := n.createNode(config, accs, db); err != nil {
return err
}
n.config = config
if err := n.setupRPCClient(); err != nil {
return err
}
n.downloader = ipfs.NewDownloader(config.RootDataDir)
if n.httpServer != nil {
if err := n.httpServer.Stop(); err != nil {
return err
}
}
httpServer, err := server.NewMediaServer(n.appDB, n.downloader, n.multiaccountsDB, n.walletDB)
if err != nil {
return err
}
n.httpServer = httpServer
if err := n.httpServer.Start(); err != nil {
return err
}
if err := n.initServices(config, n.httpServer); err != nil {
return err
}
return n.startGethNode()
}
func (n *StatusNode) createNode(config *params.NodeConfig, accs *accounts.Manager, db *leveldb.DB) (err error) {
n.gethNode, err = MakeNode(config, accs, db)
return err
}
// startGethNode starts current StatusNode, will fail if it's already started.
func (n *StatusNode) startGethNode() error {
return n.gethNode.Start()
}
func (n *StatusNode) setupRPCClient() (err error) {
// setup RPC client
gethNodeClient, err := n.gethNode.Attach()
if err != nil {
return
}
n.rpcClient, err = rpc.NewClient(gethNodeClient, n.config.NetworkID, n.config.UpstreamConfig, n.config.Networks, n.appDB)
if err != nil {
return
}
return
}
func (n *StatusNode) discoveryEnabled() bool {
return n.config != nil && (!n.config.NoDiscovery || n.config.Rendezvous) && n.config.ClusterConfig.Enabled
}
func (n *StatusNode) discoverNode() (*enode.Node, error) {
if !n.isRunning() {
return nil, nil
}
server := n.gethNode.Server()
discNode := server.Self()
if n.config.AdvertiseAddr == "" {
return discNode, nil
}
n.log.Info("Using AdvertiseAddr for rendezvous", "addr", n.config.AdvertiseAddr)
r := discNode.Record()
r.Set(enr.IP(net.ParseIP(n.config.AdvertiseAddr)))
if err := enode.SignV4(r, server.PrivateKey); err != nil {
return nil, err
}
return enode.New(enode.ValidSchemes[r.IdentityScheme()], r)
}
func (n *StatusNode) startRendezvous() (discovery.Discovery, error) {
if !n.config.Rendezvous {
return nil, errors.New("rendezvous is not enabled")
}
if len(n.config.ClusterConfig.RendezvousNodes) == 0 {
return nil, errors.New("rendezvous node must be provided if rendezvous discovery is enabled")
}
maddrs := make([]ma.Multiaddr, len(n.config.ClusterConfig.RendezvousNodes))
for i, addr := range n.config.ClusterConfig.RendezvousNodes {
var err error
maddrs[i], err = ma.NewMultiaddr(addr)
if err != nil {
return nil, fmt.Errorf("failed to parse rendezvous node %s: %v", n.config.ClusterConfig.RendezvousNodes[0], err)
}
}
node, err := n.discoverNode()
if err != nil {
return nil, fmt.Errorf("failed to get a discover node: %v", err)
}
return discovery.NewRendezvous(maddrs, n.gethNode.Server().PrivateKey, node)
}
// StartDiscovery starts the peers discovery protocols depending on the node config.
func (n *StatusNode) StartDiscovery() error {
n.mu.Lock()
defer n.mu.Unlock()
if n.discoveryEnabled() {
return n.startDiscovery()
}
return nil
}
func (n *StatusNode) startDiscovery() error {
if n.isDiscoveryRunning() {
return ErrDiscoveryRunning
}
discoveries := []discovery.Discovery{}
if !n.config.NoDiscovery {
discoveries = append(discoveries, discovery.NewDiscV5(
n.gethNode.Server().PrivateKey,
n.config.ListenAddr,
parseNodesV5(n.config.ClusterConfig.BootNodes)))
}
if n.config.Rendezvous {
d, err := n.startRendezvous()
if err != nil {
return err
}
discoveries = append(discoveries, d)
}
if len(discoveries) == 0 {
return errors.New("wasn't able to register any discovery")
} else if len(discoveries) > 1 {
n.discovery = discovery.NewMultiplexer(discoveries)
} else {
n.discovery = discoveries[0]
}
log.Debug(
"using discovery",
"instance", reflect.TypeOf(n.discovery),
"registerTopics", n.config.RegisterTopics,
"requireTopics", n.config.RequireTopics,
)
n.register = peers.NewRegister(n.discovery, n.config.RegisterTopics...)
options := peers.NewDefaultOptions()
// TODO(dshulyak) consider adding a flag to define this behaviour
options.AllowStop = len(n.config.RegisterTopics) == 0
options.TrustedMailServers = parseNodesToNodeID(n.config.ClusterConfig.TrustedMailServers)
n.peerPool = peers.NewPeerPool(
n.discovery,
n.config.RequireTopics,
peers.NewCache(n.db),
options,
)
if err := n.discovery.Start(); err != nil {
return err
}
if err := n.register.Start(); err != nil {
return err
}
return n.peerPool.Start(n.gethNode.Server())
}
// Stop will stop current StatusNode. A stopped node cannot be resumed.
func (n *StatusNode) Stop() error {
n.mu.Lock()
defer n.mu.Unlock()
if !n.isRunning() {
return ErrNoRunningNode
}
return n.stop()
}
// stop will stop current StatusNode. A stopped node cannot be resumed.
func (n *StatusNode) stop() error {
if n.isDiscoveryRunning() {
if err := n.stopDiscovery(); err != nil {
n.log.Error("Error stopping the discovery components", "error", err)
}
n.register = nil
n.peerPool = nil
n.discovery = nil
}
if err := n.gethNode.Close(); err != nil {
return err
}
n.rpcClient = nil
// We need to clear `gethNode` because config is passed to `Start()`
// and may be completely different. Similarly with `config`.
n.gethNode = nil
n.config = nil
err := n.httpServer.Stop()
if err != nil {
return err
}
n.httpServer = nil
n.downloader.Stop()
n.downloader = nil
if n.db != nil {
if err = n.db.Close(); err != nil {
n.log.Error("Error closing the leveldb of status node", "error", err)
return err
}
n.db = nil
}
n.rpcFiltersSrvc = nil
n.subscriptionsSrvc = nil
n.rpcStatsSrvc = nil
n.accountsSrvc = nil
n.browsersSrvc = nil
n.permissionsSrvc = nil
n.mailserversSrvc = nil
n.providerSrvc = nil
n.appMetricsSrvc = nil
n.walletSrvc = nil
n.peerSrvc = nil
n.localNotificationsSrvc = nil
n.personalSrvc = nil
n.timeSourceSrvc = nil
n.wakuSrvc = nil
n.wakuExtSrvc = nil
n.wakuV2Srvc = nil
n.wakuV2ExtSrvc = nil
n.ensSrvc = nil
n.communityTokensSrvc = nil
n.stickersSrvc = nil
n.connectorSrvc = nil
n.publicMethods = make(map[string]bool)
n.pendingTracker = nil
n.log.Debug("status node stopped")
return nil
}
func (n *StatusNode) isDiscoveryRunning() bool {
return n.register != nil || n.peerPool != nil || n.discovery != nil
}
func (n *StatusNode) stopDiscovery() error {
n.register.Stop()
n.peerPool.Stop()
return n.discovery.Stop()
}
// ResetChainData removes chain data if node is not running.
func (n *StatusNode) ResetChainData(config *params.NodeConfig) error {
n.mu.Lock()
defer n.mu.Unlock()
if n.isRunning() {
return ErrNodeRunning
}
chainDataDir := filepath.Join(config.DataDir, config.Name, "lightchaindata")
if _, err := os.Stat(chainDataDir); os.IsNotExist(err) {
return err
}
err := os.RemoveAll(chainDataDir)
if err == nil {
n.log.Info("Chain data has been removed", "dir", chainDataDir)
}
return err
}
// IsRunning confirm that node is running.
func (n *StatusNode) IsRunning() bool {
n.mu.RLock()
defer n.mu.RUnlock()
return n.isRunning()
}
func (n *StatusNode) isRunning() bool {
return n.gethNode != nil && n.gethNode.Server() != nil
}
// populateStaticPeers connects current node with our publicly available LES/SHH/Swarm cluster
func (n *StatusNode) populateStaticPeers() error {
if !n.config.ClusterConfig.Enabled {
n.log.Info("Static peers are disabled")
return nil
}
for _, enode := range n.config.ClusterConfig.StaticNodes {
if err := n.addPeer(enode); err != nil {
n.log.Error("Static peer addition failed", "error", err)
return err
}
n.log.Info("Static peer added", "enode", enode)
}
return nil
}
func (n *StatusNode) removeStaticPeers() error {
if !n.config.ClusterConfig.Enabled {
n.log.Info("Static peers are disabled")
return nil
}
for _, enode := range n.config.ClusterConfig.StaticNodes {
if err := n.removePeer(enode); err != nil {
n.log.Error("Static peer deletion failed", "error", err)
return err
}
n.log.Info("Static peer deleted", "enode", enode)
}
return nil
}
// ReconnectStaticPeers removes and adds static peers to a server.
func (n *StatusNode) ReconnectStaticPeers() error {
n.mu.Lock()
defer n.mu.Unlock()
if !n.isRunning() {
return ErrNoRunningNode
}
if err := n.removeStaticPeers(); err != nil {
return err
}
return n.populateStaticPeers()
}
// AddPeer adds new static peer node
func (n *StatusNode) AddPeer(url string) error {
n.mu.RLock()
defer n.mu.RUnlock()
return n.addPeer(url)
}
// addPeer adds new static peer node
func (n *StatusNode) addPeer(url string) error {
parsedNode, err := enode.ParseV4(url)
if err != nil {
return err
}
if !n.isRunning() {
return ErrNoRunningNode
}
n.gethNode.Server().AddPeer(parsedNode)
return nil
}
func (n *StatusNode) removePeer(url string) error {
parsedNode, err := enode.ParseV4(url)
if err != nil {
return err
}
if !n.isRunning() {
return ErrNoRunningNode
}
n.gethNode.Server().RemovePeer(parsedNode)
return nil
}
// PeerCount returns the number of connected peers.
func (n *StatusNode) PeerCount() int {
n.mu.RLock()
defer n.mu.RUnlock()
if !n.isRunning() {
return 0
}
return n.gethNode.Server().PeerCount()
}
func (n *StatusNode) ConnectionChanged(state connection.State) {
if n.wakuExtSrvc != nil {
n.wakuExtSrvc.ConnectionChanged(state)
}
if n.wakuV2ExtSrvc != nil {
n.wakuV2ExtSrvc.ConnectionChanged(state)
}
}
// AccountManager exposes reference to node's accounts manager
func (n *StatusNode) AccountManager() (*accounts.Manager, error) {
n.mu.RLock()
defer n.mu.RUnlock()
if n.gethNode == nil {
return nil, ErrNoGethNode
}
return n.gethNode.AccountManager(), nil
}
// RPCClient exposes reference to RPC client connected to the running node.
func (n *StatusNode) RPCClient() *rpc.Client {
n.mu.RLock()
defer n.mu.RUnlock()
return n.rpcClient
}
// Discover sets up the discovery for a specific topic.
func (n *StatusNode) Discover(topic string, max, min int) (err error) {
if n.peerPool == nil {
return errors.New("peerPool not running")
}
return n.peerPool.UpdateTopic(topic, params.Limits{
Max: max,
Min: min,
})
}
func (n *StatusNode) SetAppDB(db *sql.DB) {
n.appDB = db
}
func (n *StatusNode) SetMultiaccountsDB(db *multiaccounts.Database) {
n.multiaccountsDB = db
}
func (n *StatusNode) SetWalletDB(db *sql.DB) {
n.walletDB = db
}