plugeth/node/config.go

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2016-04-14 16:18:24 +00:00
// Copyright 2014 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 node
import (
"crypto/ecdsa"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"runtime"
"strings"
"sync"
"github.com/ethereum/go-ethereum/accounts"
"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/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
"github.com/ethereum/go-ethereum/p2p"
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
2018-09-24 22:59:00 +00:00
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/rpc"
)
2017-08-06 16:43:43 +00:00
const (
datadirPrivateKey = "nodekey" // Path within the datadir to the node's private key
datadirDefaultKeyStore = "keystore" // Path within the datadir to the keystore
datadirStaticNodes = "static-nodes.json" // Path within the datadir to the static node list
datadirTrustedNodes = "trusted-nodes.json" // Path within the datadir to the trusted node list
datadirNodeDatabase = "nodes" // Path within the datadir to store the node infos
)
// Config represents a small collection of configuration values to fine tune the
// P2P network layer of a protocol stack. These values can be further extended by
// all registered services.
type Config struct {
// Name sets the instance name of the node. It must not contain the / character and is
// used in the devp2p node identifier. The instance name of geth is "geth". If no
// value is specified, the basename of the current executable is used.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
Name string `toml:"-"`
// UserIdent, if set, is used as an additional component in the devp2p node identifier.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
UserIdent string `toml:",omitempty"`
// Version should be set to the version number of the program. It is used
// in the devp2p node identifier.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
Version string `toml:"-"`
// DataDir is the file system folder the node should use for any data storage
// requirements. The configured data directory will not be directly shared with
// registered services, instead those can use utility methods to create/access
// databases or flat files. This enables ephemeral nodes which can fully reside
// in memory.
DataDir string
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
// Configuration of peer-to-peer networking.
P2P p2p.Config
// KeyStoreDir is the file system folder that contains private keys. The directory can
// be specified as a relative path, in which case it is resolved relative to the
// current directory.
//
// If KeyStoreDir is empty, the default location is the "keystore" subdirectory of
// DataDir. If DataDir is unspecified and KeyStoreDir is empty, an ephemeral directory
// is created by New and destroyed when the node is stopped.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
KeyStoreDir string `toml:",omitempty"`
// ExternalSigner specifies an external URI for a clef-type signer
ExternalSigner string `toml:",omitempty"`
// UseLightweightKDF lowers the memory and CPU requirements of the key store
// scrypt KDF at the expense of security.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
UseLightweightKDF bool `toml:",omitempty"`
// InsecureUnlockAllowed allows user to unlock accounts in unsafe http environment.
InsecureUnlockAllowed bool `toml:",omitempty"`
// NoUSB disables hardware wallet monitoring and connectivity.
NoUSB bool `toml:",omitempty"`
// SmartCardDaemonPath is the path to the smartcard daemon's socket
SmartCardDaemonPath string `toml:",omitempty"`
// IPCPath is the requested location to place the IPC endpoint. If the path is
// a simple file name, it is placed inside the data directory (or on the root
// pipe path on Windows), whereas if it's a resolvable path name (absolute or
// relative), then that specific path is enforced. An empty path disables IPC.
IPCPath string
// HTTPHost is the host interface on which to start the HTTP RPC server. If this
// field is empty, no HTTP API endpoint will be started.
HTTPHost string
// HTTPPort is the TCP port number on which to start the HTTP RPC server. The
// default zero value is/ valid and will pick a port number randomly (useful
// for ephemeral nodes).
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
HTTPPort int `toml:",omitempty"`
// HTTPCors is the Cross-Origin Resource Sharing header to send to requesting
// clients. Please be aware that CORS is a browser enforced security, it's fully
// useless for custom HTTP clients.
HTTPCors []string `toml:",omitempty"`
// HTTPVirtualHosts is the list of virtual hostnames which are allowed on incoming requests.
// This is by default {'localhost'}. Using this prevents attacks like
// DNS rebinding, which bypasses SOP by simply masquerading as being within the same
// origin. These attacks do not utilize CORS, since they are not cross-domain.
// By explicitly checking the Host-header, the server will not allow requests
// made against the server with a malicious host domain.
// Requests using ip address directly are not affected
HTTPVirtualHosts []string `toml:",omitempty"`
// HTTPModules is a list of API modules to expose via the HTTP RPC interface.
// If the module list is empty, all RPC API endpoints designated public will be
// exposed.
HTTPModules []string
// HTTPTimeouts allows for customization of the timeout values used by the HTTP RPC
// interface.
HTTPTimeouts rpc.HTTPTimeouts
// WSHost is the host interface on which to start the websocket RPC server. If
// this field is empty, no websocket API endpoint will be started.
WSHost string
// WSPort is the TCP port number on which to start the websocket RPC server. The
// default zero value is/ valid and will pick a port number randomly (useful for
// ephemeral nodes).
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
WSPort int `toml:",omitempty"`
// WSOrigins is the list of domain to accept websocket requests from. Please be
// aware that the server can only act upon the HTTP request the client sends and
// cannot verify the validity of the request header.
WSOrigins []string `toml:",omitempty"`
// WSModules is a list of API modules to expose via the websocket RPC interface.
// If the module list is empty, all RPC API endpoints designated public will be
// exposed.
WSModules []string
// WSExposeAll exposes all API modules via the WebSocket RPC interface rather
// than just the public ones.
//
// *WARNING* Only set this if the node is running in a trusted network, exposing
// private APIs to untrusted users is a major security risk.
WSExposeAll bool `toml:",omitempty"`
// GraphQLHost is the host interface on which to start the GraphQL server. If this
// field is empty, no GraphQL API endpoint will be started.
GraphQLHost string
// GraphQLPort is the TCP port number on which to start the GraphQL server. The
// default zero value is/ valid and will pick a port number randomly (useful
// for ephemeral nodes).
GraphQLPort int `toml:",omitempty"`
// GraphQLCors is the Cross-Origin Resource Sharing header to send to requesting
// clients. Please be aware that CORS is a browser enforced security, it's fully
// useless for custom HTTP clients.
GraphQLCors []string `toml:",omitempty"`
// GraphQLVirtualHosts is the list of virtual hostnames which are allowed on incoming requests.
// This is by default {'localhost'}. Using this prevents attacks like
// DNS rebinding, which bypasses SOP by simply masquerading as being within the same
// origin. These attacks do not utilize CORS, since they are not cross-domain.
// By explicitly checking the Host-header, the server will not allow requests
// made against the server with a malicious host domain.
// Requests using ip address directly are not affected
GraphQLVirtualHosts []string `toml:",omitempty"`
// Logger is a custom logger to use with the p2p.Server.
Logger log.Logger `toml:",omitempty"`
staticNodesWarning bool
trustedNodesWarning bool
oldGethResourceWarning bool
}
// IPCEndpoint resolves an IPC endpoint based on a configured value, taking into
// account the set data folders as well as the designated platform we're currently
// running on.
func (c *Config) IPCEndpoint() string {
// Short circuit if IPC has not been enabled
if c.IPCPath == "" {
return ""
}
// On windows we can only use plain top-level pipes
if runtime.GOOS == "windows" {
if strings.HasPrefix(c.IPCPath, `\\.\pipe\`) {
return c.IPCPath
}
return `\\.\pipe\` + c.IPCPath
}
// Resolve names into the data directory full paths otherwise
if filepath.Base(c.IPCPath) == c.IPCPath {
if c.DataDir == "" {
return filepath.Join(os.TempDir(), c.IPCPath)
}
return filepath.Join(c.DataDir, c.IPCPath)
}
return c.IPCPath
}
// NodeDB returns the path to the discovery node database.
func (c *Config) NodeDB() string {
if c.DataDir == "" {
return "" // ephemeral
}
return c.ResolvePath(datadirNodeDatabase)
}
// DefaultIPCEndpoint returns the IPC path used by default.
func DefaultIPCEndpoint(clientIdentifier string) string {
if clientIdentifier == "" {
clientIdentifier = strings.TrimSuffix(filepath.Base(os.Args[0]), ".exe")
if clientIdentifier == "" {
panic("empty executable name")
}
}
config := &Config{DataDir: DefaultDataDir(), IPCPath: clientIdentifier + ".ipc"}
return config.IPCEndpoint()
}
// HTTPEndpoint resolves an HTTP endpoint based on the configured host interface
// and port parameters.
func (c *Config) HTTPEndpoint() string {
if c.HTTPHost == "" {
return ""
}
return fmt.Sprintf("%s:%d", c.HTTPHost, c.HTTPPort)
}
GraphQL master FF for review (#18445) * Initial work on a graphql API * Added receipts, and more transaction fields. * Finish receipts, add logs * Add transactionCount to block * Add types and . * Update Block type to be compatible with ethql * Rename nonce to transactionCount in Account, to be compatible with ethql * Update transaction, receipt and log to match ethql * Add query operator, for a range of blocks * Added ommerCount to Block * Add transactionAt and ommerAt to Block * Added sendRawTransaction mutation * Add Call and EstimateGas to graphQL API * Refactored to use hexutil.Bytes instead of HexBytes * Replace BigNum with hexutil.Big * Refactor call and estimateGas to use ethapi struct type * Replace ethgraphql.Address with common.Address * Replace ethgraphql.Hash with common.Hash * Converted most quantities to Long instead of Int * Add support for logs * Fix bug in runFilter * Restructured Transaction to work primarily with headers, so uncle data is reported properly * Add gasPrice API * Add protocolVersion API * Add syncing API * Moved schema into its own source file * Move some single use args types into anonymous structs * Add doc-comments * Fixed backend fetching to use context * Added (very) basic tests * Add documentation to the graphql schema * Fix reversion for formatting of big numbers * Correct spelling error * s/BigInt/Long/ * Update common/types.go * Fixes in response to review * Fix lint error * Updated calls on private functions * Fix typo in graphql.go * Rollback ethapi breaking changes for graphql support Co-Authored-By: Arachnid <arachnid@notdot.net>
2019-01-21 14:38:13 +00:00
// GraphQLEndpoint resolves a GraphQL endpoint based on the configured host interface
// and port parameters.
func (c *Config) GraphQLEndpoint() string {
if c.GraphQLHost == "" {
return ""
}
return fmt.Sprintf("%s:%d", c.GraphQLHost, c.GraphQLPort)
}
// DefaultHTTPEndpoint returns the HTTP endpoint used by default.
func DefaultHTTPEndpoint() string {
config := &Config{HTTPHost: DefaultHTTPHost, HTTPPort: DefaultHTTPPort}
return config.HTTPEndpoint()
}
// WSEndpoint resolves a websocket endpoint based on the configured host interface
// and port parameters.
func (c *Config) WSEndpoint() string {
if c.WSHost == "" {
return ""
}
return fmt.Sprintf("%s:%d", c.WSHost, c.WSPort)
}
// DefaultWSEndpoint returns the websocket endpoint used by default.
func DefaultWSEndpoint() string {
config := &Config{WSHost: DefaultWSHost, WSPort: DefaultWSPort}
return config.WSEndpoint()
}
// ExtRPCEnabled returns the indicator whether node enables the external
// RPC(http, ws or graphql).
func (c *Config) ExtRPCEnabled() bool {
return c.HTTPHost != "" || c.WSHost != "" || c.GraphQLHost != ""
}
// NodeName returns the devp2p node identifier.
func (c *Config) NodeName() string {
name := c.name()
// Backwards compatibility: previous versions used title-cased "Geth", keep that.
if name == "geth" || name == "geth-testnet" {
name = "Geth"
}
if c.UserIdent != "" {
name += "/" + c.UserIdent
}
if c.Version != "" {
name += "/v" + c.Version
}
name += "/" + runtime.GOOS + "-" + runtime.GOARCH
name += "/" + runtime.Version()
return name
}
func (c *Config) name() string {
if c.Name == "" {
progname := strings.TrimSuffix(filepath.Base(os.Args[0]), ".exe")
if progname == "" {
panic("empty executable name, set Config.Name")
}
return progname
}
return c.Name
}
2016-11-10 16:03:24 +00:00
// These resources are resolved differently for "geth" instances.
var isOldGethResource = map[string]bool{
"chaindata": true,
"nodes": true,
"nodekey": true,
"static-nodes.json": false, // no warning for these because they have their
"trusted-nodes.json": false, // own separate warning.
}
// ResolvePath resolves path in the instance directory.
func (c *Config) ResolvePath(path string) string {
if filepath.IsAbs(path) {
return path
}
if c.DataDir == "" {
return ""
}
// Backwards-compatibility: ensure that data directory files created
// by geth 1.4 are used if they exist.
if warn, isOld := isOldGethResource[path]; isOld {
oldpath := ""
if c.name() == "geth" {
oldpath = filepath.Join(c.DataDir, path)
}
if oldpath != "" && common.FileExist(oldpath) {
if warn {
c.warnOnce(&c.oldGethResourceWarning, "Using deprecated resource file %s, please move this file to the 'geth' subdirectory of datadir.", oldpath)
}
return oldpath
}
}
2016-11-10 16:03:24 +00:00
return filepath.Join(c.instanceDir(), path)
}
func (c *Config) instanceDir() string {
if c.DataDir == "" {
return ""
}
return filepath.Join(c.DataDir, c.name())
}
// NodeKey retrieves the currently configured private key of the node, checking
// first any manually set key, falling back to the one found in the configured
// data folder. If no key can be found, a new one is generated.
func (c *Config) NodeKey() *ecdsa.PrivateKey {
// Use any specifically configured key.
cmd/geth: add --config file flag (#13875) * p2p/discover, p2p/discv5: add marshaling methods to Node * p2p/netutil: make Netlist decodable from TOML * common/math: encode nil HexOrDecimal256 as 0x0 * cmd/geth: add --config file flag * cmd/geth: add missing license header * eth: prettify Config again, fix tests * eth: use gasprice.Config instead of duplicating its fields * eth/gasprice: hide nil default from dumpconfig output * cmd/geth: hide genesis block in dumpconfig output * node: make tests compile * console: fix tests * cmd/geth: make TOML keys look exactly like Go struct fields * p2p: use discovery by default This makes the zero Config slightly more useful. It also fixes package node tests because Node detects reuse of the datadir through the NodeDatabase. * cmd/geth: make ethstats URL settable through config file * cmd/faucet: fix configuration * cmd/geth: dedup attach tests * eth: add comment for DefaultConfig * eth: pass downloader.SyncMode in Config This removes the FastSync, LightSync flags in favour of a more general SyncMode flag. * cmd/utils: remove jitvm flags * cmd/utils: make mutually exclusive flag error prettier It now reads: Fatal: flags --dev, --testnet can't be used at the same time * p2p: fix typo * node: add DefaultConfig, use it for geth * mobile: add missing NoDiscovery option * cmd/utils: drop MakeNode This exposed a couple of places that needed to be updated to use node.DefaultConfig. * node: fix typo * eth: make fast sync the default mode * cmd/utils: remove IPCApiFlag (unused) * node: remove default IPC path Set it in the frontends instead. * cmd/geth: add --syncmode * cmd/utils: make --ipcdisable and --ipcpath mutually exclusive * cmd/utils: don't enable WS, HTTP when setting addr * cmd/utils: fix --identity
2017-04-12 14:27:23 +00:00
if c.P2P.PrivateKey != nil {
return c.P2P.PrivateKey
}
// Generate ephemeral key if no datadir is being used.
if c.DataDir == "" {
key, err := crypto.GenerateKey()
if err != nil {
log.Crit(fmt.Sprintf("Failed to generate ephemeral node key: %v", err))
}
return key
}
keyfile := c.ResolvePath(datadirPrivateKey)
if key, err := crypto.LoadECDSA(keyfile); err == nil {
return key
}
// No persistent key found, generate and store a new one.
key, err := crypto.GenerateKey()
if err != nil {
log.Crit(fmt.Sprintf("Failed to generate node key: %v", err))
}
instanceDir := filepath.Join(c.DataDir, c.name())
if err := os.MkdirAll(instanceDir, 0700); err != nil {
log.Error(fmt.Sprintf("Failed to persist node key: %v", err))
return key
}
keyfile = filepath.Join(instanceDir, datadirPrivateKey)
if err := crypto.SaveECDSA(keyfile, key); err != nil {
log.Error(fmt.Sprintf("Failed to persist node key: %v", err))
}
return key
}
// StaticNodes returns a list of node enode URLs configured as static nodes.
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
2018-09-24 22:59:00 +00:00
func (c *Config) StaticNodes() []*enode.Node {
return c.parsePersistentNodes(&c.staticNodesWarning, c.ResolvePath(datadirStaticNodes))
}
// TrustedNodes returns a list of node enode URLs configured as trusted nodes.
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
2018-09-24 22:59:00 +00:00
func (c *Config) TrustedNodes() []*enode.Node {
return c.parsePersistentNodes(&c.trustedNodesWarning, c.ResolvePath(datadirTrustedNodes))
}
// parsePersistentNodes parses a list of discovery node URLs loaded from a .json
// file from within the data directory.
func (c *Config) parsePersistentNodes(w *bool, path string) []*enode.Node {
// Short circuit if no node config is present
if c.DataDir == "" {
return nil
}
if _, err := os.Stat(path); err != nil {
return nil
}
c.warnOnce(w, "Found deprecated node list file %s, please use the TOML config file instead.", path)
// Load the nodes from the config file.
var nodelist []string
if err := common.LoadJSON(path, &nodelist); err != nil {
log.Error(fmt.Sprintf("Can't load node list file: %v", err))
return nil
}
// Interpret the list as a discovery node array
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
2018-09-24 22:59:00 +00:00
var nodes []*enode.Node
for _, url := range nodelist {
if url == "" {
continue
}
node, err := enode.Parse(enode.ValidSchemes, url)
if err != nil {
log.Error(fmt.Sprintf("Node URL %s: %v\n", url, err))
continue
}
nodes = append(nodes, node)
}
return nodes
}
// AccountConfig determines the settings for scrypt and keydirectory
func (c *Config) AccountConfig() (int, int, string, error) {
scryptN := keystore.StandardScryptN
scryptP := keystore.StandardScryptP
if c.UseLightweightKDF {
scryptN = keystore.LightScryptN
scryptP = keystore.LightScryptP
}
var (
keydir string
err error
)
switch {
case filepath.IsAbs(c.KeyStoreDir):
keydir = c.KeyStoreDir
case c.DataDir != "":
if c.KeyStoreDir == "" {
keydir = filepath.Join(c.DataDir, datadirDefaultKeyStore)
} else {
keydir, err = filepath.Abs(c.KeyStoreDir)
}
case c.KeyStoreDir != "":
keydir, err = filepath.Abs(c.KeyStoreDir)
}
return scryptN, scryptP, keydir, err
}
func makeAccountManager(conf *Config) (*accounts.Manager, string, error) {
scryptN, scryptP, keydir, err := conf.AccountConfig()
var ephemeral string
if keydir == "" {
// There is no datadir.
keydir, err = ioutil.TempDir("", "go-ethereum-keystore")
ephemeral = keydir
}
if err != nil {
return nil, "", err
}
if err := os.MkdirAll(keydir, 0700); err != nil {
return nil, "", err
}
// Assemble the account manager and supported backends
var backends []accounts.Backend
if len(conf.ExternalSigner) > 0 {
log.Info("Using external signer", "url", conf.ExternalSigner)
if extapi, err := external.NewExternalBackend(conf.ExternalSigner); err == nil {
backends = append(backends, extapi)
} else {
return nil, "", fmt.Errorf("error connecting to external signer: %v", err)
}
}
if len(backends) == 0 {
// 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.
backends = append(backends, keystore.NewKeyStore(keydir, scryptN, scryptP))
if !conf.NoUSB {
// 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 {
backends = append(backends, 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 {
backends = append(backends, 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 {
backends = append(backends, 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 {
backends = append(backends, schub)
}
}
}
return accounts.NewManager(&accounts.Config{InsecureUnlockAllowed: conf.InsecureUnlockAllowed}, backends...), ephemeral, nil
}
var warnLock sync.Mutex
func (c *Config) warnOnce(w *bool, format string, args ...interface{}) {
warnLock.Lock()
defer warnLock.Unlock()
if *w {
return
}
l := c.Logger
if l == nil {
l = log.Root()
}
l.Warn(fmt.Sprintf(format, args...))
*w = true
}