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node: remove dependency on wallet backend packages (#23019)

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* accounts: new AddBackends method in manager

* node,cmd/geth: mv accman backend init to cmd/geth

* node,cmd/geth: mv scrypt config downstreawm from node

* accounts: use static buffer size for accman sub chan

minor fix

* accounts,cmd/geth: update accman backends through its event loop

* accounts,node: add comments

* accounts: un-export newBackendEvent

* accounts: use chan instead of wg in newBlockEvent

* node: rename isKeyDirEphem

* accounts,cmd: AddBackends->AddBackend

* accounts: fix potential blocking when adding backend
This commit is contained in:
Sina Mahmoodi
2021-08-25 22:34:22 +02:00
committed by GitHub
parent d584e39862
commit 108eec3fee
5 changed files with 156 additions and 90 deletions
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9
cmd/geth/accountcmd.go
View File

@ -268,11 +268,16 @@ func accountCreate(ctx *cli.Context) error {
}
}
utils.SetNodeConfig(ctx, &cfg.Node)
scryptN, scryptP, keydir, err := cfg.Node.AccountConfig()
keydir, err := cfg.Node.KeyDirConfig()
if err != nil {
utils.Fatalf("Failed to read configuration: %v", err)
}
scryptN := keystore.StandardScryptN
scryptP := keystore.StandardScryptP
if cfg.Node.UseLightweightKDF {
scryptN = keystore.LightScryptN
scryptP = keystore.LightScryptP
}
password := utils.GetPassPhraseWithList("Your new account is locked with a password. Please give a password. Do not forget this password.", true, 0, utils.MakePasswordList(ctx))

68
cmd/geth/config.go
View File

@ -27,6 +27,10 @@ import (
"gopkg.in/urfave/cli.v1"
"github.com/ethereum/go-ethereum/accounts/external"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/accounts/scwallet"
"github.com/ethereum/go-ethereum/accounts/usbwallet"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/eth/catalyst"
"github.com/ethereum/go-ethereum/eth/ethconfig"
@ -135,6 +139,11 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
if err != nil {
utils.Fatalf("Failed to create the protocol stack: %v", err)
}
// Node doesn't by default populate account manager backends
if err := setAccountManagerBackends(stack); err != nil {
utils.Fatalf("Failed to set account manager backends: %v", err)
}
utils.SetEthConfig(ctx, stack, &cfg.Eth)
if ctx.GlobalIsSet(utils.EthStatsURLFlag.Name) {
cfg.Ethstats.URL = ctx.GlobalString(utils.EthStatsURLFlag.Name)
@ -257,3 +266,62 @@ func deprecated(field string) bool {
return false
}
}
func setAccountManagerBackends(stack *node.Node) error {
conf := stack.Config()
am := stack.AccountManager()
keydir := stack.KeyStoreDir()
scryptN := keystore.StandardScryptN
scryptP := keystore.StandardScryptP
if conf.UseLightweightKDF {
scryptN = keystore.LightScryptN
scryptP = keystore.LightScryptP
}
// Assemble the supported backends
if len(conf.ExternalSigner) > 0 {
log.Info("Using external signer", "url", conf.ExternalSigner)
if extapi, err := external.NewExternalBackend(conf.ExternalSigner); err == nil {
am.AddBackend(extapi)
return nil
} else {
return fmt.Errorf("error connecting to external signer: %v", err)
}
}
// For now, we're using EITHER external signer OR local signers.
// If/when we implement some form of lockfile for USB and keystore wallets,
// we can have both, but it's very confusing for the user to see the same
// accounts in both externally and locally, plus very racey.
am.AddBackend(keystore.NewKeyStore(keydir, scryptN, scryptP))
if conf.USB {
// Start a USB hub for Ledger hardware wallets
if ledgerhub, err := usbwallet.NewLedgerHub(); err != nil {
log.Warn(fmt.Sprintf("Failed to start Ledger hub, disabling: %v", err))
} else {
am.AddBackend(ledgerhub)
}
// Start a USB hub for Trezor hardware wallets (HID version)
if trezorhub, err := usbwallet.NewTrezorHubWithHID(); err != nil {
log.Warn(fmt.Sprintf("Failed to start HID Trezor hub, disabling: %v", err))
} else {
am.AddBackend(trezorhub)
}
// Start a USB hub for Trezor hardware wallets (WebUSB version)
if trezorhub, err := usbwallet.NewTrezorHubWithWebUSB(); err != nil {
log.Warn(fmt.Sprintf("Failed to start WebUSB Trezor hub, disabling: %v", err))
} else {
am.AddBackend(trezorhub)
}
}
if len(conf.SmartCardDaemonPath) > 0 {
// Start a smart card hub
if schub, err := scwallet.NewHub(conf.SmartCardDaemonPath, scwallet.Scheme, keydir); err != nil {
log.Warn(fmt.Sprintf("Failed to start smart card hub, disabling: %v", err))
} else {
am.AddBackend(schub)
}
}
return nil
}