node/status_node_services.go
package node
import (
"crypto/ecdsa"
"database/sql"
"encoding/json"
"errors"
"fmt"
"os"
"reflect"
"time"
"github.com/status-im/status-go/protocol/common/shard"
"github.com/status-im/status-go/server"
"github.com/status-im/status-go/signal"
"github.com/status-im/status-go/transactions"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/p2p/enode"
gethrpc "github.com/ethereum/go-ethereum/rpc"
"github.com/status-im/status-go/appmetrics"
"github.com/status-im/status-go/common"
gethbridge "github.com/status-im/status-go/eth-node/bridge/geth"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/logutils"
"github.com/status-im/status-go/mailserver"
"github.com/status-im/status-go/multiaccounts/accounts"
"github.com/status-im/status-go/multiaccounts/settings"
"github.com/status-im/status-go/params"
"github.com/status-im/status-go/rpc"
accountssvc "github.com/status-im/status-go/services/accounts"
"github.com/status-im/status-go/services/accounts/settingsevent"
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/ext"
"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/wallet/thirdparty"
"github.com/status-im/status-go/services/wallet/transfer"
"github.com/status-im/status-go/services/web3provider"
"github.com/status-im/status-go/timesource"
"github.com/status-im/status-go/waku"
wakucommon "github.com/status-im/status-go/waku/common"
"github.com/status-im/status-go/wakuv2"
)
var (
// ErrWakuClearIdentitiesFailure clearing whisper identities has failed.
ErrWakuClearIdentitiesFailure = errors.New("failed to clear waku identities")
// ErrRPCClientUnavailable is returned if an RPC client can't be retrieved.
// This is a normal situation when a node is stopped.
ErrRPCClientUnavailable = errors.New("JSON-RPC client is unavailable")
)
func (b *StatusNode) initServices(config *params.NodeConfig, mediaServer *server.MediaServer) error {
accountsFeed := &event.Feed{}
settingsFeed := &event.Feed{}
accDB, err := accounts.NewDB(b.appDB)
if err != nil {
return err
}
setSettingsNotifier(accDB, settingsFeed)
services := []common.StatusService{}
services = appendIf(config.UpstreamConfig.Enabled, services, b.rpcFiltersService())
services = append(services, b.subscriptionService())
services = append(services, b.rpcStatsService())
services = append(services, b.appmetricsService())
services = append(services, b.peerService())
services = append(services, b.personalService())
services = append(services, b.statusPublicService())
services = append(services, b.pendingTrackerService(&b.walletFeed))
services = append(services, b.ensService(b.timeSourceNow()))
services = append(services, b.CommunityTokensService())
services = append(services, b.stickersService(accDB))
services = append(services, b.updatesService())
services = appendIf(b.appDB != nil && b.multiaccountsDB != nil, services, b.accountsService(accountsFeed, accDB, mediaServer))
services = appendIf(config.BrowsersConfig.Enabled, services, b.browsersService())
services = appendIf(config.PermissionsConfig.Enabled, services, b.permissionsService())
services = appendIf(config.MailserversConfig.Enabled, services, b.mailserversService())
services = appendIf(config.Web3ProviderConfig.Enabled, services, b.providerService(accDB))
services = appendIf(config.ConnectorConfig.Enabled, services, b.connectorService())
services = append(services, b.gifService(accDB))
services = append(services, b.ChatService(accDB))
// Wallet Service is used by wakuExtSrvc/wakuV2ExtSrvc
// Keep this initialization before the other two
if config.WalletConfig.Enabled {
walletService := b.walletService(accDB, b.appDB, accountsFeed, settingsFeed, &b.walletFeed)
services = append(services, walletService)
}
// CollectiblesManager needs the WakuExt service to get metadata for
// Community collectibles.
// Messenger needs the CollectiblesManager to get the list of collectibles owned
// by a certain account and check community entry permissions.
// We handle circular dependency between the two by delaying ininitalization of the CommunityCollectibleInfoProvider
// in the CollectiblesManager.
if config.WakuConfig.Enabled {
wakuService, err := b.wakuService(&config.WakuConfig, &config.ClusterConfig)
if err != nil {
return err
}
services = append(services, wakuService)
wakuext, err := b.wakuExtService(config)
if err != nil {
return err
}
b.wakuExtSrvc = wakuext
services = append(services, wakuext)
b.SetWalletCommunityInfoProvider(wakuext)
}
if config.WakuV2Config.Enabled {
telemetryServerURL := ""
if accDB.DB() != nil {
telemetryServerURL, err = accDB.GetTelemetryServerURL()
if err != nil {
return err
}
if telemetryServerURL != "" {
config.WakuV2Config.TelemetryServerURL = telemetryServerURL
}
}
waku2Service, err := b.wakuV2Service(config)
if err != nil {
return err
}
services = append(services, waku2Service)
wakuext, err := b.wakuV2ExtService(config)
if err != nil {
return err
}
b.wakuV2ExtSrvc = wakuext
services = append(services, wakuext)
b.SetWalletCommunityInfoProvider(wakuext)
}
// We ignore for now local notifications flag as users who are upgrading have no mean to enable it
lns, err := b.localNotificationsService(config.NetworkID)
if err != nil {
return err
}
services = append(services, lns)
b.peerSrvc.SetDiscoverer(b)
for i := range services {
b.RegisterLifecycle(services[i])
}
b.services = services
return nil
}
func (b *StatusNode) RegisterLifecycle(s common.StatusService) {
b.addPublicMethods(s.APIs())
b.gethNode.RegisterAPIs(s.APIs())
b.gethNode.RegisterProtocols(s.Protocols())
b.gethNode.RegisterLifecycle(s)
}
// Add through reflection a list of public methods so we can check when the
// user makes a call if they are allowed
func (b *StatusNode) addPublicMethods(apis []gethrpc.API) {
for _, api := range apis {
if api.Public {
addSuitableCallbacks(reflect.ValueOf(api.Service), api.Namespace, b.publicMethods)
}
}
}
func (b *StatusNode) nodeBridge() types.Node {
return gethbridge.NewNodeBridge(b.gethNode, b.wakuSrvc, b.wakuV2Srvc)
}
func (b *StatusNode) wakuExtService(config *params.NodeConfig) (*wakuext.Service, error) {
if b.gethNode == nil {
return nil, errors.New("geth node not initialized")
}
if b.wakuExtSrvc == nil {
b.wakuExtSrvc = wakuext.New(*config, b.nodeBridge(), b.rpcClient, ext.EnvelopeSignalHandler{}, b.db)
}
b.wakuExtSrvc.SetP2PServer(b.gethNode.Server())
return b.wakuExtSrvc, nil
}
func (b *StatusNode) wakuV2ExtService(config *params.NodeConfig) (*wakuv2ext.Service, error) {
if b.gethNode == nil {
return nil, errors.New("geth node not initialized")
}
if b.wakuV2ExtSrvc == nil {
b.wakuV2ExtSrvc = wakuv2ext.New(*config, b.nodeBridge(), b.rpcClient, ext.EnvelopeSignalHandler{}, b.db)
}
b.wakuV2ExtSrvc.SetP2PServer(b.gethNode.Server())
return b.wakuV2ExtSrvc, nil
}
func (b *StatusNode) statusPublicService() *status.Service {
if b.statusPublicSrvc == nil {
b.statusPublicSrvc = status.New()
}
return b.statusPublicSrvc
}
func (b *StatusNode) StatusPublicService() *status.Service {
return b.statusPublicSrvc
}
func (b *StatusNode) AccountService() *accountssvc.Service {
return b.accountsSrvc
}
func (b *StatusNode) BrowserService() *browsers.Service {
return b.browsersSrvc
}
func (b *StatusNode) EnsService() *ens.Service {
return b.ensSrvc
}
func (b *StatusNode) WakuService() *waku.Waku {
return b.wakuSrvc
}
func (b *StatusNode) WakuExtService() *wakuext.Service {
return b.wakuExtSrvc
}
func (b *StatusNode) WakuV2ExtService() *wakuv2ext.Service {
return b.wakuV2ExtSrvc
}
func (b *StatusNode) WakuV2Service() *wakuv2.Waku {
return b.wakuV2Srvc
}
func (b *StatusNode) wakuService(wakuCfg *params.WakuConfig, clusterCfg *params.ClusterConfig) (*waku.Waku, error) {
if b.wakuSrvc == nil {
cfg := &waku.Config{
MaxMessageSize: wakucommon.DefaultMaxMessageSize,
BloomFilterMode: wakuCfg.BloomFilterMode,
FullNode: wakuCfg.FullNode,
SoftBlacklistedPeerIDs: wakuCfg.SoftBlacklistedPeerIDs,
MinimumAcceptedPoW: params.WakuMinimumPoW,
EnableConfirmations: wakuCfg.EnableConfirmations,
}
if wakuCfg.MaxMessageSize > 0 {
cfg.MaxMessageSize = wakuCfg.MaxMessageSize
}
if wakuCfg.MinimumPoW > 0 {
cfg.MinimumAcceptedPoW = wakuCfg.MinimumPoW
}
w := waku.New(cfg, logutils.ZapLogger())
if wakuCfg.EnableRateLimiter {
r := wakuRateLimiter(wakuCfg, clusterCfg)
w.RegisterRateLimiter(r)
}
if timesource := b.timeSource(); timesource != nil {
w.SetTimeSource(timesource.Now)
}
// enable mail service
if wakuCfg.EnableMailServer {
if err := registerWakuMailServer(w, wakuCfg); err != nil {
return nil, fmt.Errorf("failed to register WakuMailServer: %v", err)
}
}
if wakuCfg.LightClient {
emptyBloomFilter := make([]byte, 64)
if err := w.SetBloomFilter(emptyBloomFilter); err != nil {
return nil, err
}
}
b.wakuSrvc = w
}
return b.wakuSrvc, nil
}
func (b *StatusNode) wakuV2Service(nodeConfig *params.NodeConfig) (*wakuv2.Waku, error) {
if b.wakuV2Srvc == nil {
cfg := &wakuv2.Config{
MaxMessageSize: wakucommon.DefaultMaxMessageSize,
Host: nodeConfig.WakuV2Config.Host,
Port: nodeConfig.WakuV2Config.Port,
LightClient: nodeConfig.WakuV2Config.LightClient,
KeepAliveInterval: nodeConfig.WakuV2Config.KeepAliveInterval,
Rendezvous: nodeConfig.Rendezvous,
WakuNodes: nodeConfig.ClusterConfig.WakuNodes,
EnableStore: nodeConfig.WakuV2Config.EnableStore,
StoreCapacity: nodeConfig.WakuV2Config.StoreCapacity,
StoreSeconds: nodeConfig.WakuV2Config.StoreSeconds,
DiscoveryLimit: nodeConfig.WakuV2Config.DiscoveryLimit,
DiscV5BootstrapNodes: nodeConfig.ClusterConfig.DiscV5BootstrapNodes,
Nameserver: nodeConfig.WakuV2Config.Nameserver,
UDPPort: nodeConfig.WakuV2Config.UDPPort,
AutoUpdate: nodeConfig.WakuV2Config.AutoUpdate,
DefaultShardPubsubTopic: shard.DefaultShardPubsubTopic(),
UseShardAsDefaultTopic: nodeConfig.WakuV2Config.UseShardAsDefaultTopic,
TelemetryServerURL: nodeConfig.WakuV2Config.TelemetryServerURL,
ClusterID: nodeConfig.ClusterConfig.ClusterID,
}
// Configure peer exchange and discv5 settings based on node type
if cfg.LightClient {
cfg.EnablePeerExchangeServer = false
cfg.EnablePeerExchangeClient = true
cfg.EnableDiscV5 = false
} else {
cfg.EnablePeerExchangeServer = true
cfg.EnablePeerExchangeClient = false
cfg.EnableDiscV5 = true
}
if nodeConfig.WakuV2Config.MaxMessageSize > 0 {
cfg.MaxMessageSize = nodeConfig.WakuV2Config.MaxMessageSize
}
var nodeKey *ecdsa.PrivateKey
var err error
if nodeConfig.NodeKey != "" {
nodeKey, err = crypto.HexToECDSA(nodeConfig.NodeKey)
if err != nil {
return nil, fmt.Errorf("could not convert nodekey into a valid private key: %v", err)
}
} else {
nodeKeyStr := os.Getenv("WAKUV2_NODE_KEY")
if nodeKeyStr != "" {
nodeKeyBytes, err := hexutil.Decode(nodeKeyStr)
if err != nil {
return nil, fmt.Errorf("failed to decode the go-waku private key: %v", err)
}
nodeKey, err = crypto.ToECDSA(nodeKeyBytes)
if err != nil {
return nil, fmt.Errorf("could not convert nodekey into a valid private key: %v", err)
}
}
}
w, err := wakuv2.New(nodeKey, nodeConfig.ClusterConfig.Fleet, cfg, logutils.ZapLogger(), b.appDB, b.timeSource(), signal.SendHistoricMessagesRequestFailed, signal.SendPeerStats)
if err != nil {
return nil, err
}
b.wakuV2Srvc = w
}
return b.wakuV2Srvc, nil
}
func setSettingsNotifier(db *accounts.Database, feed *event.Feed) {
db.SetSettingsNotifier(func(setting settings.SettingField, val interface{}) {
feed.Send(settingsevent.Event{
Type: settingsevent.EventTypeChanged,
Setting: setting,
Value: val,
})
})
}
func wakuRateLimiter(wakuCfg *params.WakuConfig, clusterCfg *params.ClusterConfig) *wakucommon.PeerRateLimiter {
enodes := append(
parseNodes(clusterCfg.StaticNodes),
parseNodes(clusterCfg.TrustedMailServers)...,
)
var (
ips []string
peerIDs []enode.ID
)
for _, item := range enodes {
ips = append(ips, item.IP().String())
peerIDs = append(peerIDs, item.ID())
}
return wakucommon.NewPeerRateLimiter(
&wakucommon.PeerRateLimiterConfig{
PacketLimitPerSecIP: wakuCfg.PacketRateLimitIP,
PacketLimitPerSecPeerID: wakuCfg.PacketRateLimitPeerID,
BytesLimitPerSecIP: wakuCfg.BytesRateLimitIP,
BytesLimitPerSecPeerID: wakuCfg.BytesRateLimitPeerID,
WhitelistedIPs: ips,
WhitelistedPeerIDs: peerIDs,
},
&wakucommon.MetricsRateLimiterHandler{},
&wakucommon.DropPeerRateLimiterHandler{
Tolerance: wakuCfg.RateLimitTolerance,
},
)
}
func (b *StatusNode) connectorService() *connector.Service {
if b.connectorSrvc == nil {
b.connectorSrvc = connector.NewService(b.rpcClient, b.connectorSrvc)
}
return b.connectorSrvc
}
func (b *StatusNode) rpcFiltersService() *rpcfilters.Service {
if b.rpcFiltersSrvc == nil {
b.rpcFiltersSrvc = rpcfilters.New(b)
}
return b.rpcFiltersSrvc
}
func (b *StatusNode) subscriptionService() *subscriptions.Service {
if b.subscriptionsSrvc == nil {
b.subscriptionsSrvc = subscriptions.New(func() *rpc.Client { return b.RPCClient() })
}
return b.subscriptionsSrvc
}
func (b *StatusNode) rpcStatsService() *rpcstats.Service {
if b.rpcStatsSrvc == nil {
b.rpcStatsSrvc = rpcstats.New()
}
return b.rpcStatsSrvc
}
func (b *StatusNode) accountsService(accountsFeed *event.Feed, accDB *accounts.Database, mediaServer *server.MediaServer) *accountssvc.Service {
if b.accountsSrvc == nil {
b.accountsSrvc = accountssvc.NewService(
accDB,
b.multiaccountsDB,
b.gethAccountManager,
b.config,
accountsFeed,
mediaServer,
)
}
return b.accountsSrvc
}
func (b *StatusNode) browsersService() *browsers.Service {
if b.browsersSrvc == nil {
b.browsersSrvc = browsers.NewService(browsers.NewDB(b.appDB))
}
return b.browsersSrvc
}
func (b *StatusNode) ensService(timesource func() time.Time) *ens.Service {
if b.ensSrvc == nil {
b.ensSrvc = ens.NewService(b.rpcClient, b.gethAccountManager, b.pendingTracker, b.config, b.appDB, timesource)
}
return b.ensSrvc
}
func (b *StatusNode) pendingTrackerService(walletFeed *event.Feed) *transactions.PendingTxTracker {
if b.pendingTracker == nil {
b.pendingTracker = transactions.NewPendingTxTracker(b.walletDB, b.rpcClient, b.rpcFiltersSrvc, walletFeed, transactions.PendingCheckInterval)
if b.transactor != nil {
b.transactor.SetPendingTracker(b.pendingTracker)
}
}
return b.pendingTracker
}
func (b *StatusNode) CommunityTokensService() *communitytokens.Service {
if b.communityTokensSrvc == nil {
b.communityTokensSrvc = communitytokens.NewService(b.rpcClient, b.gethAccountManager, b.pendingTracker, b.config, b.appDB, &b.walletFeed, b.transactor)
}
return b.communityTokensSrvc
}
func (b *StatusNode) stickersService(accountDB *accounts.Database) *stickers.Service {
if b.stickersSrvc == nil {
b.stickersSrvc = stickers.NewService(accountDB, b.rpcClient, b.gethAccountManager, b.config, b.downloader, b.httpServer, b.pendingTracker)
}
return b.stickersSrvc
}
func (b *StatusNode) updatesService() *updates.Service {
if b.updatesSrvc == nil {
b.updatesSrvc = updates.NewService(b.ensService(b.timeSourceNow()))
}
return b.updatesSrvc
}
func (b *StatusNode) gifService(accountsDB *accounts.Database) *gif.Service {
if b.gifSrvc == nil {
b.gifSrvc = gif.NewService(accountsDB)
}
return b.gifSrvc
}
func (b *StatusNode) ChatService(accountsDB *accounts.Database) *chat.Service {
if b.chatSrvc == nil {
b.chatSrvc = chat.NewService(accountsDB)
}
return b.chatSrvc
}
func (b *StatusNode) permissionsService() *permissions.Service {
if b.permissionsSrvc == nil {
b.permissionsSrvc = permissions.NewService(permissions.NewDB(b.appDB))
}
return b.permissionsSrvc
}
func (b *StatusNode) mailserversService() *mailservers.Service {
if b.mailserversSrvc == nil {
b.mailserversSrvc = mailservers.NewService(mailservers.NewDB(b.appDB))
}
return b.mailserversSrvc
}
func (b *StatusNode) providerService(accountsDB *accounts.Database) *web3provider.Service {
web3S := web3provider.NewService(b.appDB, accountsDB, b.rpcClient, b.config, b.gethAccountManager, b.rpcFiltersSrvc, b.transactor)
if b.providerSrvc == nil {
b.providerSrvc = web3S
}
return b.providerSrvc
}
func (b *StatusNode) appmetricsService() common.StatusService {
if b.appMetricsSrvc == nil {
b.appMetricsSrvc = appmetricsservice.NewService(appmetrics.NewDB(b.appDB))
}
return b.appMetricsSrvc
}
func (b *StatusNode) WalletService() *wallet.Service {
return b.walletSrvc
}
func (b *StatusNode) SetWalletCommunityInfoProvider(provider thirdparty.CommunityInfoProvider) {
if b.walletSrvc != nil {
b.walletSrvc.SetWalletCommunityInfoProvider(provider)
}
}
func (b *StatusNode) walletService(accountsDB *accounts.Database, appDB *sql.DB, accountsFeed *event.Feed, settingsFeed *event.Feed, walletFeed *event.Feed) *wallet.Service {
if b.walletSrvc == nil {
b.walletSrvc = wallet.NewService(
b.walletDB, accountsDB, appDB, b.rpcClient, accountsFeed, settingsFeed, b.gethAccountManager, b.transactor, b.config,
b.ensService(b.timeSourceNow()),
b.stickersService(accountsDB),
b.pendingTracker,
walletFeed,
b.httpServer,
)
}
return b.walletSrvc
}
func (b *StatusNode) localNotificationsService(network uint64) (*localnotifications.Service, error) {
var err error
if b.localNotificationsSrvc == nil {
b.localNotificationsSrvc, err = localnotifications.NewService(b.appDB, transfer.NewDB(b.walletDB), network)
if err != nil {
return nil, err
}
}
return b.localNotificationsSrvc, nil
}
func (b *StatusNode) peerService() *peer.Service {
if b.peerSrvc == nil {
b.peerSrvc = peer.New()
}
return b.peerSrvc
}
func registerWakuMailServer(wakuService *waku.Waku, config *params.WakuConfig) (err error) {
var mailServer mailserver.WakuMailServer
wakuService.RegisterMailServer(&mailServer)
return mailServer.Init(wakuService, config)
}
func appendIf(condition bool, services []common.StatusService, service common.StatusService) []common.StatusService {
if !condition {
return services
}
return append(services, service)
}
func (b *StatusNode) RPCFiltersService() *rpcfilters.Service {
return b.rpcFiltersSrvc
}
func (b *StatusNode) PendingTracker() *transactions.PendingTxTracker {
return b.pendingTracker
}
func (b *StatusNode) StopLocalNotifications() error {
if b.localNotificationsSrvc == nil {
return nil
}
if b.localNotificationsSrvc.IsStarted() {
err := b.localNotificationsSrvc.Stop()
if err != nil {
b.log.Error("LocalNotifications service stop failed on StopLocalNotifications", "error", err)
return nil
}
}
return nil
}
func (b *StatusNode) StartLocalNotifications() error {
if b.localNotificationsSrvc == nil {
return nil
}
if b.walletSrvc == nil {
return nil
}
if !b.localNotificationsSrvc.IsStarted() {
err := b.localNotificationsSrvc.Start()
if err != nil {
b.log.Error("LocalNotifications service start failed on StartLocalNotifications", "error", err)
return nil
}
}
err := b.localNotificationsSrvc.SubscribeWallet(&b.walletFeed)
if err != nil {
b.log.Error("LocalNotifications service could not subscribe to wallet on StartLocalNotifications", "error", err)
return nil
}
return nil
}
// `personal_sign` and `personal_ecRecover` methods are important to
// keep DApps working.
// Usually, they are provided by an ETH or a LES service, but when using
// upstream, we don't start any of these, so we need to start our own
// implementation.
func (b *StatusNode) personalService() *personal.Service {
if b.personalSrvc == nil {
b.personalSrvc = personal.New(b.accountsManager)
}
return b.personalSrvc
}
func (b *StatusNode) timeSource() *timesource.NTPTimeSource {
if b.timeSourceSrvc == nil {
b.timeSourceSrvc = timesource.Default()
}
return b.timeSourceSrvc
}
func (b *StatusNode) timeSourceNow() func() time.Time {
return b.timeSource().Now
}
func (b *StatusNode) Cleanup() error {
if b.wakuSrvc != nil {
if err := b.wakuSrvc.DeleteKeyPairs(); err != nil {
return fmt.Errorf("%s: %v", ErrWakuClearIdentitiesFailure, err)
}
}
if b.Config() != nil && b.Config().WalletConfig.Enabled {
if b.walletSrvc != nil {
if b.walletSrvc.IsStarted() {
err := b.walletSrvc.Stop()
if err != nil {
return err
}
}
}
}
if b.ensSrvc != nil {
err := b.ensSrvc.Stop()
if err != nil {
return err
}
}
return nil
}
type RPCCall struct {
Method string `json:"method"`
}
func (b *StatusNode) CallPrivateRPC(inputJSON string) (string, error) {
b.mu.Lock()
defer b.mu.Unlock()
if b.rpcClient == nil {
return "", ErrRPCClientUnavailable
}
return b.rpcClient.CallRaw(inputJSON), nil
}
// CallRPC calls public methods on the node, we register public methods
// in a map and check if they can be called in this function
func (b *StatusNode) CallRPC(inputJSON string) (string, error) {
b.mu.Lock()
defer b.mu.Unlock()
if b.rpcClient == nil {
return "", ErrRPCClientUnavailable
}
rpcCall := &RPCCall{}
err := json.Unmarshal([]byte(inputJSON), rpcCall)
if err != nil {
return "", err
}
if rpcCall.Method == "" || !b.publicMethods[rpcCall.Method] {
return ErrRPCMethodUnavailable, nil
}
return b.rpcClient.CallRaw(inputJSON), nil
}