/
config.go
1033 lines (938 loc) · 44.3 KB
/
config.go
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// Copyright (c) 2013-2016 The btcsuite developers
// Copyright (c) 2015-2018 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package main
import (
"context"
"fmt"
"net"
"os"
"os/user"
"path/filepath"
"runtime"
"sort"
"strings"
"github.com/fonero-project/fnod/fnoutil"
"github.com/fonero-project/fnowallet/errors"
"github.com/fonero-project/fnowallet/internal/cfgutil"
"github.com/fonero-project/fnowallet/netparams"
"github.com/fonero-project/fnowallet/ticketbuyer"
"github.com/fonero-project/fnowallet/version"
"github.com/fonero-project/fnowallet/wallet"
"github.com/fonero-project/fnowallet/wallet/txrules"
"github.com/decred/slog"
flags "github.com/jessevdk/go-flags"
)
const (
defaultCAFilename = "fnod.cert"
defaultConfigFilename = "fnowallet.conf"
defaultLogLevel = "info"
defaultLogDirname = "logs"
defaultLogFilename = "fnowallet.log"
defaultRPCMaxClients = 10
defaultRPCMaxWebsockets = 25
defaultEnableTicketBuyer = false
defaultEnableVoting = false
defaultReuseAddresses = false
defaultRollbackTest = false
defaultPruneTickets = false
defaultPurchaseAccount = "default"
defaultAutomaticRepair = false
defaultPromptPass = false
defaultPass = ""
defaultPromptPublicPass = false
defaultGapLimit = wallet.DefaultGapLimit
defaultStakePoolColdExtKey = ""
defaultAllowHighFees = false
defaultAccountGapLimit = wallet.DefaultAccountGapLimit
// ticket buyer options
defaultMaxFee fnoutil.Amount = 1e6
defaultMinFee fnoutil.Amount = 1e5
defaultMaxPriceScale = 0.0
defaultAvgVWAPPriceDelta = 2880
defaultMaxPerBlock = 1
defaultBlocksToAvg = 11
defaultFeeTargetScaling = 1.0
defaultMaxInMempool = 40
defaultExpiryDelta = 16
defaultFeeSource = ticketbuyer.TicketFeeMedian
defaultAvgPriceMode = ticketbuyer.PriceTargetVWAP
defaultMaxPriceAbsolute = 0
defaultMaxPriceRelative = 1.25
defaultPriceTarget = 0
defaultBalanceToMaintainAbsolute = 0
defaultBalanceToMaintainRelative = 0.3
walletDbName = "wallet.db"
)
var (
fnodDefaultCAFile = filepath.Join(fnoutil.AppDataDir("fnod", false), "rpc.cert")
defaultAppDataDir = fnoutil.AppDataDir("fnowallet", false)
defaultConfigFile = filepath.Join(defaultAppDataDir, defaultConfigFilename)
defaultRPCKeyFile = filepath.Join(defaultAppDataDir, "rpc.key")
defaultRPCCertFile = filepath.Join(defaultAppDataDir, "rpc.cert")
defaultLogDir = filepath.Join(defaultAppDataDir, defaultLogDirname)
)
type config struct {
// General application behavior
ConfigFile *cfgutil.ExplicitString `short:"C" long:"configfile" description:"Path to configuration file"`
ShowVersion bool `short:"V" long:"version" description:"Display version information and exit"`
Create bool `long:"create" description:"Create the wallet if it does not exist"`
CreateTemp bool `long:"createtemp" description:"Create a temporary simulation wallet (pass=password) in the data directory indicated; must call with --appdata"`
CreateWatchingOnly bool `long:"createwatchingonly" description:"Create the wallet and instantiate it as watching only with an HD extended pubkey"`
AppDataDir *cfgutil.ExplicitString `short:"A" long:"appdata" description:"Application data directory for wallet config, databases and logs"`
TestNet bool `long:"testnet" description:"Use the test network"`
SimNet bool `long:"simnet" description:"Use the simulation test network"`
NoInitialLoad bool `long:"noinitialload" description:"Defer wallet creation/opening on startup and enable loading wallets over RPC"`
DebugLevel string `short:"d" long:"debuglevel" description:"Logging level {trace, debug, info, warn, error, critical}"`
LogDir *cfgutil.ExplicitString `long:"logdir" description:"Directory to log output."`
Profile []string `long:"profile" description:"Enable HTTP profiling this interface/port"`
MemProfile string `long:"memprofile" description:"Write mem profile to the specified file"`
// Wallet options
WalletPass string `long:"walletpass" default-mask:"-" description:"The public wallet password -- Only required if the wallet was created with one"`
PromptPass bool `long:"promptpass" description:"The private wallet password is prompted for at start up, so the wallet starts unlocked without a time limit"`
Pass string `long:"pass" description:"The private wallet passphrase"`
PromptPublicPass bool `long:"promptpublicpass" description:"The public wallet password is prompted for at start up"`
DisallowFree bool `long:"disallowfree" description:"Force transactions to always include a fee"`
EnableTicketBuyer bool `long:"enableticketbuyer" description:"Enable the automatic ticket buyer"`
EnableVoting bool `long:"enablevoting" description:"Enable creation of votes and revocations for owned tickets"`
ReuseAddresses bool `long:"reuseaddresses" description:"Reuse addresses for ticket purchase to cut down on address overuse"`
PurchaseAccount string `long:"purchaseaccount" description:"Name of the account to buy tickets from"`
PoolAddress *cfgutil.AddressFlag `long:"pooladdress" description:"The ticket pool address where ticket fees will go to"`
PoolFees float64 `long:"poolfees" description:"The per-ticket fee mandated by the ticket pool as a percent (e.g. 1.00 for 1.00% fee)"`
GapLimit int `long:"gaplimit" description:"The size of gaps between used addresses. Used for address scanning and when generating addresses with the wrap option."`
StakePoolColdExtKey string `long:"stakepoolcoldextkey" description:"Enables the wallet as a stake pool with an extended key in the format of \"xpub...:index\" to derive cold wallet addresses to send fees to"`
AllowHighFees bool `long:"allowhighfees" description:"Force the RPC client to use the 'allowHighFees' flag when sending transactions"`
RelayFee *cfgutil.AmountFlag `long:"txfee" description:"Sets the wallet's tx fee per kb"`
TicketFee *cfgutil.AmountFlag `long:"ticketfee" description:"Sets the wallet's ticket fee per kb"`
AccountGapLimit int `long:"accountgaplimit" description:"Number of accounts that can be created in a row without using any of them"`
legacyTicketBuyer bool
// RPC client options
RPCConnect string `short:"c" long:"rpcconnect" description:"Hostname/IP and port of fnod RPC server to connect to"`
CAFile *cfgutil.ExplicitString `long:"cafile" description:"File containing root certificates to authenticate a TLS connections with fnod"`
DisableClientTLS bool `long:"noclienttls" description:"Disable TLS for the RPC client -- NOTE: This is only allowed if the RPC client is connecting to localhost"`
DcrdUsername string `long:"fnodusername" description:"Username for fnod authentication"`
DcrdPassword string `long:"fnodpassword" default-mask:"-" description:"Password for fnod authentication"`
Proxy string `long:"proxy" description:"Connect via SOCKS5 proxy (eg. 127.0.0.1:9050)"`
ProxyUser string `long:"proxyuser" description:"Username for proxy server"`
ProxyPass string `long:"proxypass" default-mask:"-" description:"Password for proxy server"`
// SPV options
SPV bool `long:"spv" description:"Sync using simplified payment verification"`
SPVConnect []string `long:"spvconnect" description:"Full node addresses to SPV sync from"`
// RPC server options
//
// The legacy server is still enabled by default (and eventually will be
// replaced with the experimental server) so prepare for that change by
// renaming the struct fields (but not the configuration options).
//
// Usernames can also be used for the consensus RPC client, so they
// aren't considered legacy.
RPCCert *cfgutil.ExplicitString `long:"rpccert" description:"File containing the certificate file"`
RPCKey *cfgutil.ExplicitString `long:"rpckey" description:"File containing the certificate key"`
TLSCurve *cfgutil.CurveFlag `long:"tlscurve" description:"Curve to use when generating TLS keypairs"`
OneTimeTLSKey bool `long:"onetimetlskey" description:"Generate a new TLS certpair at startup, but only write the certificate to disk"`
DisableServerTLS bool `long:"noservertls" description:"Disable TLS for the RPC servers -- NOTE: This is only allowed if the RPC server is bound to localhost"`
GRPCListeners []string `long:"grpclisten" description:"Listen for gRPC connections on this interface/port"`
LegacyRPCListeners []string `long:"rpclisten" description:"Listen for legacy JSON-RPC connections on this interface/port"`
NoGRPC bool `long:"nogrpc" description:"Disable the gRPC server"`
NoLegacyRPC bool `long:"nolegacyrpc" description:"Disable the legacy JSON-RPC server"`
LegacyRPCMaxClients int64 `long:"rpcmaxclients" description:"Max number of legacy JSON-RPC clients for standard connections"`
LegacyRPCMaxWebsockets int64 `long:"rpcmaxwebsockets" description:"Max number of legacy JSON-RPC websocket connections"`
Username string `short:"u" long:"username" description:"Username for legacy JSON-RPC and fnod authentication (if fnodusername is unset)"`
Password string `short:"P" long:"password" default-mask:"-" description:"Password for legacy JSON-RPC and fnod authentication (if fnodpassword is unset)"`
// IPC options
PipeTx *uint `long:"pipetx" description:"File descriptor or handle of write end pipe to enable child -> parent process communication"`
PipeRx *uint `long:"piperx" description:"File descriptor or handle of read end pipe to enable parent -> child process communication"`
RPCListenerEvents bool `long:"rpclistenerevents" description:"Notify JSON-RPC and gRPC listener addresses over the TX pipe"`
TBOpts ticketBuyerOptions `group:"Ticket Buyer Options" namespace:"ticketbuyer"`
tbCfg ticketbuyer.Config
// Deprecated options
DataDir *cfgutil.ExplicitString `short:"b" long:"datadir" default-mask:"-" description:"DEPRECATED -- use appdata instead"`
PruneTickets bool `long:"prunetickets" description:"DEPRECATED -- old tickets are always pruned"`
TicketAddress *cfgutil.AddressFlag `long:"ticketaddress" description:"DEPRECATED -- use ticketbuyer.votingaddress instead"`
AddrIdxScanLen int `long:"addridxscanlen" description:"DEPRECATED -- use gaplimit instead"`
RollbackTest bool `hidden:"y" long:"rollbacktest" description:"Rollback testing is a simnet testing mode that eventually stops wallet and examines wtxmgr database integrity"`
AutomaticRepair bool `hidden:"y" long:"automaticrepair" description:"Attempt to repair the wallet automatically if a database inconsistency is found"`
}
type ticketBuyerOptions struct {
BalanceToMaintainAbsolute *cfgutil.AmountFlag `long:"balancetomaintainabsolute" description:"Amount of funds to keep in wallet when stake mining"`
VotingAddress *cfgutil.AddressFlag `long:"votingaddress" description:"Purchase tickets with voting rights assigned to this address"`
// Deprecated options
AvgPriceMode string `long:"avgpricemode" description:"DEPRECATED -- The mode to use for calculating the average price if pricetarget is disabled (vwap, pool, dual)"`
AvgPriceVWAPDelta int `long:"avgpricevwapdelta" description:"DEPRECATED -- The number of blocks to use from the current block to calculate the VWAP"`
MaxFee *cfgutil.AmountFlag `long:"maxfee" description:"DEPRECATED -- Maximum ticket fee per KB"`
MinFee *cfgutil.AmountFlag `long:"minfee" description:"DEPRECATED -- Minimum ticket fee per KB"`
FeeSource string `long:"feesource" description:"DEPRECATED -- The fee source to use for ticket fee per KB (median or mean)"`
MaxPerBlock int `long:"maxperblock" description:"DEPRECATED -- Maximum tickets per block, with negative numbers indicating buy one ticket every 1-in-n blocks"`
BlocksToAvg int `long:"blockstoavg" description:"DEPRECATED -- Number of blocks to average for fees calculation"`
FeeTargetScaling float64 `long:"feetargetscaling" description:"DEPRECATED -- Scaling factor for setting the ticket fee, multiplies by the average fee"`
MaxInMempool int `long:"maxinmempool" description:"DEPRECATED -- The maximum number of your tickets allowed in mempool before purchasing more tickets"`
ExpiryDelta int `long:"expirydelta" description:"DEPRECATED -- Number of blocks in the future before the ticket expires"`
MaxPriceAbsolute *cfgutil.AmountFlag `long:"maxpriceabsolute" description:"DEPRECATED -- Maximum absolute price to purchase a ticket"`
MaxPriceScale float64 `long:"maxpricescale" description:"DEPRECATED -- Attempt to prevent the stake difficulty from going above this multiplier (>1.0) by manipulation, 0 to disable"`
MaxPriceRelative float64 `long:"maxpricerelative" description:"DEPRECATED -- Scaling factor for setting the maximum price, multiplies by the average price"`
BalanceToMaintainRelative float64 `long:"balancetomaintainrelative" description:"DEPRECATED -- Proportion of funds to leave in wallet when stake mining"`
PriceTarget *cfgutil.AmountFlag `long:"pricetarget" description:"DEPRECATED -- A target to try to seek setting the stake price to rather than meeting the average price, 0 to disable"`
NoSpreadTicketPurchases bool `long:"nospreadticketpurchases" description:"DEPRECATED -- Do not spread ticket purchases evenly throughout the window"`
SpreadTicketPurchases bool `long:"spreadticketpurchases" description:"DEPRECATED -- Spread ticket purchases evenly throughout the window"`
DontWaitForTickets bool `long:"dontwaitfortickets" description:"DEPRECATED -- Don't wait until your last round of tickets have entered the blockchain to attempt to purchase more"`
}
// cleanAndExpandPath expands environement variables and leading ~ in the
// passed path, cleans the result, and returns it.
func cleanAndExpandPath(path string) string {
// Do not try to clean the empty string
if path == "" {
return ""
}
// NOTE: The os.ExpandEnv doesn't work with Windows cmd.exe-style
// %VARIABLE%, but they variables can still be expanded via POSIX-style
// $VARIABLE.
path = os.ExpandEnv(path)
if !strings.HasPrefix(path, "~") {
return filepath.Clean(path)
}
// Expand initial ~ to the current user's home directory, or ~otheruser
// to otheruser's home directory. On Windows, both forward and backward
// slashes can be used.
path = path[1:]
var pathSeparators string
if runtime.GOOS == "windows" {
pathSeparators = string(os.PathSeparator) + "/"
} else {
pathSeparators = string(os.PathSeparator)
}
userName := ""
if i := strings.IndexAny(path, pathSeparators); i != -1 {
userName = path[:i]
path = path[i:]
}
homeDir := ""
var u *user.User
var err error
if userName == "" {
u, err = user.Current()
} else {
u, err = user.Lookup(userName)
}
if err == nil {
homeDir = u.HomeDir
}
// Fallback to CWD if user lookup fails or user has no home directory.
if homeDir == "" {
homeDir = "."
}
return filepath.Join(homeDir, path)
}
// validLogLevel returns whether or not logLevel is a valid debug log level.
func validLogLevel(logLevel string) bool {
_, ok := slog.LevelFromString(logLevel)
return ok
}
// supportedSubsystems returns a sorted slice of the supported subsystems for
// logging purposes.
func supportedSubsystems() []string {
// Convert the subsystemLoggers map keys to a slice.
subsystems := make([]string, 0, len(subsystemLoggers))
for subsysID := range subsystemLoggers {
subsystems = append(subsystems, subsysID)
}
// Sort the subsytems for stable display.
sort.Strings(subsystems)
return subsystems
}
// parseAndSetDebugLevels attempts to parse the specified debug level and set
// the levels accordingly. An appropriate error is returned if anything is
// invalid.
func parseAndSetDebugLevels(debugLevel string) error {
// When the specified string doesn't have any delimters, treat it as
// the log level for all subsystems.
if !strings.Contains(debugLevel, ",") && !strings.Contains(debugLevel, "=") {
// Validate debug log level.
if !validLogLevel(debugLevel) {
str := "The specified debug level [%v] is invalid"
return errors.Errorf(str, debugLevel)
}
// Change the logging level for all subsystems.
setLogLevels(debugLevel)
return nil
}
// Split the specified string into subsystem/level pairs while detecting
// issues and update the log levels accordingly.
for _, logLevelPair := range strings.Split(debugLevel, ",") {
if !strings.Contains(logLevelPair, "=") {
str := "The specified debug level contains an invalid " +
"subsystem/level pair [%v]"
return errors.Errorf(str, logLevelPair)
}
// Extract the specified subsystem and log level.
fields := strings.Split(logLevelPair, "=")
subsysID, logLevel := fields[0], fields[1]
// Validate subsystem.
if _, exists := subsystemLoggers[subsysID]; !exists {
str := "The specified subsystem [%v] is invalid -- " +
"supported subsytems %v"
return errors.Errorf(str, subsysID, supportedSubsystems())
}
// Validate log level.
if !validLogLevel(logLevel) {
str := "The specified debug level [%v] is invalid"
return errors.Errorf(str, logLevel)
}
setLogLevel(subsysID, logLevel)
}
return nil
}
// loadConfig initializes and parses the config using a config file and command
// line options.
//
// The configuration proceeds as follows:
// 1) Start with a default config with sane settings
// 2) Pre-parse the command line to check for an alternative config file
// 3) Load configuration file overwriting defaults with any specified options
// 4) Parse CLI options and overwrite/add any specified options
//
// The above results in fnowallet functioning properly without any config
// settings while still allowing the user to override settings with config files
// and command line options. Command line options always take precedence.
// The bool returned indicates whether or not the wallet was recreated from a
// seed and needs to perform the initial resync. The []byte is the private
// passphrase required to do the sync for this special case.
func loadConfig(ctx context.Context) (*config, []string, error) {
loadConfigError := func(err error) (*config, []string, error) {
return nil, nil, err
}
// Default config.
cfg := config{
DebugLevel: defaultLogLevel,
ConfigFile: cfgutil.NewExplicitString(defaultConfigFile),
AppDataDir: cfgutil.NewExplicitString(defaultAppDataDir),
LogDir: cfgutil.NewExplicitString(defaultLogDir),
WalletPass: wallet.InsecurePubPassphrase,
CAFile: cfgutil.NewExplicitString(""),
PromptPass: defaultPromptPass,
Pass: defaultPass,
PromptPublicPass: defaultPromptPublicPass,
RPCKey: cfgutil.NewExplicitString(defaultRPCKeyFile),
RPCCert: cfgutil.NewExplicitString(defaultRPCCertFile),
TLSCurve: cfgutil.NewCurveFlag(cfgutil.CurveP521),
LegacyRPCMaxClients: defaultRPCMaxClients,
LegacyRPCMaxWebsockets: defaultRPCMaxWebsockets,
EnableTicketBuyer: defaultEnableTicketBuyer,
EnableVoting: defaultEnableVoting,
ReuseAddresses: defaultReuseAddresses,
PruneTickets: defaultPruneTickets,
PurchaseAccount: defaultPurchaseAccount,
GapLimit: defaultGapLimit,
StakePoolColdExtKey: defaultStakePoolColdExtKey,
AllowHighFees: defaultAllowHighFees,
RelayFee: cfgutil.NewAmountFlag(txrules.DefaultRelayFeePerKb),
TicketFee: cfgutil.NewAmountFlag(txrules.DefaultRelayFeePerKb),
PoolAddress: cfgutil.NewAddressFlag(nil),
AccountGapLimit: defaultAccountGapLimit,
// TODO: DEPRECATED - remove.
DataDir: cfgutil.NewExplicitString(defaultAppDataDir),
TicketAddress: cfgutil.NewAddressFlag(nil),
AddrIdxScanLen: defaultGapLimit,
RollbackTest: defaultRollbackTest,
AutomaticRepair: defaultAutomaticRepair,
// Ticket Buyer Options
TBOpts: ticketBuyerOptions{
BalanceToMaintainAbsolute: cfgutil.NewAmountFlag(defaultBalanceToMaintainAbsolute),
VotingAddress: cfgutil.NewAddressFlag(nil),
MaxPriceScale: defaultMaxPriceScale,
AvgPriceMode: defaultAvgPriceMode,
AvgPriceVWAPDelta: defaultAvgVWAPPriceDelta,
MaxFee: cfgutil.NewAmountFlag(defaultMaxFee),
MinFee: cfgutil.NewAmountFlag(defaultMinFee),
FeeSource: defaultFeeSource,
MaxPerBlock: defaultMaxPerBlock,
BlocksToAvg: defaultBlocksToAvg,
FeeTargetScaling: defaultFeeTargetScaling,
MaxInMempool: defaultMaxInMempool,
ExpiryDelta: defaultExpiryDelta,
MaxPriceAbsolute: cfgutil.NewAmountFlag(defaultMaxPriceAbsolute),
MaxPriceRelative: defaultMaxPriceRelative,
PriceTarget: cfgutil.NewAmountFlag(defaultPriceTarget),
BalanceToMaintainRelative: defaultBalanceToMaintainRelative,
},
}
// Pre-parse the command line options to see if an alternative config
// file or the version flag was specified.
preCfg := cfg
preParser := flags.NewParser(&preCfg, flags.Default)
_, err := preParser.Parse()
if err != nil {
e, ok := err.(*flags.Error)
if ok && e.Type == flags.ErrHelp {
os.Exit(0)
}
preParser.WriteHelp(os.Stderr)
return loadConfigError(err)
}
// Show the version and exit if the version flag was specified.
funcName := "loadConfig"
appName := filepath.Base(os.Args[0])
appName = strings.TrimSuffix(appName, filepath.Ext(appName))
usageMessage := fmt.Sprintf("Use %s -h to show usage", appName)
if preCfg.ShowVersion {
fmt.Printf("%s version %s (Go version %s)\n", appName, version.String(), runtime.Version())
os.Exit(0)
}
// Load additional config from file.
var configFileError error
parser := flags.NewParser(&cfg, flags.Default)
configFilePath := preCfg.ConfigFile.Value
if preCfg.ConfigFile.ExplicitlySet() {
configFilePath = cleanAndExpandPath(configFilePath)
} else {
appDataDir := preCfg.AppDataDir.Value
if !preCfg.AppDataDir.ExplicitlySet() && preCfg.DataDir.ExplicitlySet() {
appDataDir = cleanAndExpandPath(preCfg.DataDir.Value)
}
if appDataDir != defaultAppDataDir {
configFilePath = filepath.Join(appDataDir, defaultConfigFilename)
}
}
err = flags.NewIniParser(parser).ParseFile(configFilePath)
if err != nil {
if _, ok := err.(*os.PathError); !ok {
fmt.Fprintln(os.Stderr, err)
parser.WriteHelp(os.Stderr)
return loadConfigError(err)
}
configFileError = err
}
// Parse command line options again to ensure they take precedence.
remainingArgs, err := parser.Parse()
if err != nil {
if e, ok := err.(*flags.Error); !ok || e.Type != flags.ErrHelp {
parser.WriteHelp(os.Stderr)
}
return loadConfigError(err)
}
// If an alternate data directory was specified, and paths with defaults
// relative to the data dir are unchanged, modify each path to be
// relative to the new data dir.
if cfg.AppDataDir.ExplicitlySet() {
cfg.AppDataDir.Value = cleanAndExpandPath(cfg.AppDataDir.Value)
if !cfg.RPCKey.ExplicitlySet() {
cfg.RPCKey.Value = filepath.Join(cfg.AppDataDir.Value, "rpc.key")
}
if !cfg.RPCCert.ExplicitlySet() {
cfg.RPCCert.Value = filepath.Join(cfg.AppDataDir.Value, "rpc.cert")
}
if !cfg.LogDir.ExplicitlySet() {
cfg.LogDir.Value = filepath.Join(cfg.AppDataDir.Value, defaultLogDirname)
}
}
// Choose the active network params based on the selected network.
// Multiple networks can't be selected simultaneously.
numNets := 0
if cfg.TestNet {
activeNet = &netparams.TestNetParams
numNets++
}
if cfg.SimNet {
activeNet = &netparams.SimNetParams
numNets++
}
if numNets > 1 {
str := "%s: The testnet and simnet params can't be used " +
"together -- choose one"
err := errors.Errorf(str, "loadConfig")
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Append the network type to the log directory so it is "namespaced"
// per network.
cfg.LogDir.Value = cleanAndExpandPath(cfg.LogDir.Value)
cfg.LogDir.Value = filepath.Join(cfg.LogDir.Value, activeNet.Params.Name)
// Special show command to list supported subsystems and exit.
if cfg.DebugLevel == "show" {
fmt.Println("Supported subsystems", supportedSubsystems())
os.Exit(0)
}
// Initialize log rotation. After log rotation has been initialized, the
// logger variables may be used.
initLogRotator(filepath.Join(cfg.LogDir.Value, defaultLogFilename))
// Parse, validate, and set debug log level(s).
if err := parseAndSetDebugLevels(cfg.DebugLevel); err != nil {
err := errors.Errorf("%s: %v", "loadConfig", err.Error())
fmt.Fprintln(os.Stderr, err)
parser.WriteHelp(os.Stderr)
return loadConfigError(err)
}
// Error and shutdown if config file is specified on the command line
// but cannot be found.
if configFileError != nil && cfg.ConfigFile.ExplicitlySet() {
if preCfg.ConfigFile.ExplicitlySet() || cfg.ConfigFile.ExplicitlySet() {
log.Errorf("%v", configFileError)
return loadConfigError(configFileError)
}
}
// Warn about missing config file after the final command line parse
// succeeds. This prevents the warning on help messages and invalid
// options.
if configFileError != nil {
log.Warnf("%v", configFileError)
}
// Check deprecated options. The new options receive priority when both
// are changed from the default.
if cfg.DataDir.ExplicitlySet() {
fmt.Fprintln(os.Stderr, "datadir option has been replaced by "+
"appdata -- please update your config")
if !cfg.AppDataDir.ExplicitlySet() {
cfg.AppDataDir.Value = cfg.DataDir.Value
}
}
if cfg.PruneTickets {
fmt.Fprintln(os.Stderr, "prunetickets option is no longer necessary "+
"or used -- please update your config")
}
// Check for ticket buyer options which do not appear in the v2 API. Any
// non-default deprecated option will cause the old ticket buyer to be used.
// Otherwise, the new buyer is opportunistically used. The old buyer is not
// compatible with SPV.
var deprecatedTBOpt bool
checkDeprecatedTBOpt := func(name string, deprecated bool) {
if deprecatedTBOpt { // only warn once
return
}
if deprecated {
fmt.Fprintf(os.Stderr, "%s: --ticketbuyer.%s is deprecated -- using "+
"legacy ticket buyer\n", funcName, name)
deprecatedTBOpt = true
}
}
checkDeprecatedTBOpt("avgpricemode", cfg.TBOpts.AvgPriceMode != defaultAvgPriceMode)
checkDeprecatedTBOpt("avgpricevwapdelta", cfg.TBOpts.AvgPriceVWAPDelta != defaultAvgVWAPPriceDelta)
checkDeprecatedTBOpt("maxfee", cfg.TBOpts.MaxFee.Amount != defaultMaxFee)
checkDeprecatedTBOpt("minfee", cfg.TBOpts.MinFee.Amount != defaultMinFee)
checkDeprecatedTBOpt("feesource", cfg.TBOpts.FeeSource != defaultFeeSource)
checkDeprecatedTBOpt("maxperblock", cfg.TBOpts.MaxPerBlock != defaultMaxPerBlock)
checkDeprecatedTBOpt("blockstoavg", cfg.TBOpts.BlocksToAvg != defaultBlocksToAvg)
checkDeprecatedTBOpt("feetargetscaling", cfg.TBOpts.FeeTargetScaling != defaultFeeTargetScaling)
checkDeprecatedTBOpt("maxinmempool", cfg.TBOpts.MaxInMempool != defaultMaxInMempool)
checkDeprecatedTBOpt("expirydelta", cfg.TBOpts.ExpiryDelta != defaultExpiryDelta)
checkDeprecatedTBOpt("maxpriceabsolute", cfg.TBOpts.MaxPriceAbsolute.Amount != defaultMaxPriceAbsolute)
checkDeprecatedTBOpt("maxpricescale", cfg.TBOpts.MaxPriceScale != defaultMaxPriceScale)
checkDeprecatedTBOpt("maxpricerelative", cfg.TBOpts.MaxPriceRelative != defaultMaxPriceRelative)
checkDeprecatedTBOpt("balancetomaintainrelative", cfg.TBOpts.BalanceToMaintainRelative != defaultBalanceToMaintainRelative)
checkDeprecatedTBOpt("pricetarget", cfg.TBOpts.PriceTarget.Amount != defaultPriceTarget)
checkDeprecatedTBOpt("nospreadticketpurchases", cfg.TBOpts.NoSpreadTicketPurchases)
checkDeprecatedTBOpt("spreadticketpurchases", cfg.TBOpts.SpreadTicketPurchases)
checkDeprecatedTBOpt("dontwaitfortickets", cfg.TBOpts.DontWaitForTickets)
cfg.legacyTicketBuyer = deprecatedTBOpt
if cfg.EnableTicketBuyer && cfg.legacyTicketBuyer && cfg.SPV {
err := errors.Errorf("%v: legacy ticket buyer cannot be used with SPV -- "+
"disable SPV or deprecated options to continue", funcName)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.TBOpts.SpreadTicketPurchases {
fmt.Fprintln(os.Stderr, "ticketbuyer.spreadticketpurchases option "+
"has been replaced by ticketbuyer.nospreadticketpurchases -- "+
"please update your config")
}
// Make sure the fee source type given is valid.
switch cfg.TBOpts.FeeSource {
case ticketbuyer.TicketFeeMean:
case ticketbuyer.TicketFeeMedian:
default:
str := "%s: Invalid fee source '%s'"
err := errors.Errorf(str, funcName, cfg.TBOpts.FeeSource)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Make sure a valid average price mode is given.
switch cfg.TBOpts.AvgPriceMode {
case ticketbuyer.PriceTargetVWAP:
case ticketbuyer.PriceTargetPool:
case ticketbuyer.PriceTargetDual:
default:
str := "%s: Invalid average price mode '%s'"
err := errors.Errorf(str, funcName, cfg.TBOpts.AvgPriceMode)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Sanity check MaxPriceRelative
if cfg.TBOpts.MaxPriceRelative < 0 {
str := "%s: maxpricerelative cannot be negative: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.MaxPriceRelative)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Sanity check MinFee and MaxFee
if cfg.TBOpts.MinFee.ToCoin() > cfg.TBOpts.MaxFee.ToCoin() {
str := "%s: minfee cannot be higher than maxfee: (min %v, max %v)"
err := errors.Errorf(str, funcName, cfg.TBOpts.MinFee, cfg.TBOpts.MaxFee)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.TBOpts.MaxFee.ToCoin() < 0 {
str := "%s: maxfee cannot be less than zero: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.MaxFee)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.TBOpts.MinFee.ToCoin() < 0 {
str := "%s: minfee cannot be less than zero: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.MinFee)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Sanity check BalanceToMaintainAbsolute
if cfg.TBOpts.BalanceToMaintainAbsolute.ToCoin() < 0 {
str := "%s: balancetomaintainabsolute cannot be negative: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.BalanceToMaintainAbsolute)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Sanity check BalanceToMaintainRelative
if cfg.TBOpts.BalanceToMaintainRelative < 0 {
str := "%s: balancetomaintainabsolute cannot be negative: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.BalanceToMaintainRelative)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.TBOpts.BalanceToMaintainRelative > 1 {
str := "%s: balancetomaintainrelative cannot be greater then 1: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.BalanceToMaintainRelative)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Sanity check ExpiryDelta
if cfg.TBOpts.ExpiryDelta <= 0 {
str := "%s: expirydelta must be greater then zero: %v"
err := errors.Errorf(str, funcName, cfg.TBOpts.ExpiryDelta)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Exit if you try to use a simulation wallet with a standard
// data directory.
if !(cfg.AppDataDir.ExplicitlySet() || cfg.DataDir.ExplicitlySet()) && cfg.CreateTemp {
fmt.Fprintln(os.Stderr, "Tried to create a temporary simulation "+
"wallet, but failed to specify data directory!")
os.Exit(0)
}
// Exit if you try to use a simulation wallet on anything other than
// simnet or testnet.
if !cfg.SimNet && cfg.CreateTemp {
fmt.Fprintln(os.Stderr, "Tried to create a temporary simulation "+
"wallet for network other than simnet!")
os.Exit(0)
}
// Warn for removed features without erroring parsing the config.
if cfg.RollbackTest {
fmt.Fprintf(os.Stderr, "%v: --rollbacktest should be removed from config\n", funcName)
}
if cfg.AutomaticRepair {
fmt.Fprintf(os.Stderr, "%v: --automaticrepair should be removed from config\n", funcName)
}
// Ensure the wallet exists or create it when the create flag is set.
netDir := networkDir(cfg.AppDataDir.Value, activeNet.Params)
dbPath := filepath.Join(netDir, walletDbName)
if cfg.CreateTemp && cfg.Create {
err := errors.Errorf("The flags --create and --createtemp can not " +
"be specified together. Use --help for more information.")
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
dbFileExists, err := cfgutil.FileExists(dbPath)
if err != nil {
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.CreateTemp {
tempWalletExists := false
if dbFileExists {
str := fmt.Sprintf("The wallet already exists. Loading this " +
"wallet instead.")
fmt.Fprintln(os.Stdout, str)
tempWalletExists = true
}
// Ensure the data directory for the network exists.
if err := checkCreateDir(netDir); err != nil {
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if !tempWalletExists {
// Perform the initial wallet creation wizard.
if err := createSimulationWallet(&cfg); err != nil {
fmt.Fprintln(os.Stderr, "Unable to create wallet:", err)
return loadConfigError(err)
}
}
} else if cfg.Create || cfg.CreateWatchingOnly {
// Error if the create flag is set and the wallet already
// exists.
if dbFileExists {
err := errors.Errorf("The wallet database file `%v` "+
"already exists.", dbPath)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Ensure the data directory for the network exists.
if err := checkCreateDir(netDir); err != nil {
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
// Perform the initial wallet creation wizard.
os.Stdout.Sync()
if cfg.CreateWatchingOnly {
err = createWatchingOnlyWallet(&cfg)
} else {
err = createWallet(ctx, &cfg)
}
if err != nil {
fmt.Fprintln(os.Stderr, "Unable to create wallet:", err)
return loadConfigError(err)
}
// Created successfully, so exit now with success.
os.Exit(0)
} else if !dbFileExists && !cfg.NoInitialLoad {
err := errors.Errorf("The wallet does not exist. Run with the " +
"--create option to initialize and create it.")
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if cfg.PoolFees != 0.0 {
if !txrules.ValidPoolFeeRate(cfg.PoolFees) {
err := errors.E(errors.Invalid, errors.Errorf("pool fee rate %v", cfg.PoolFees))
fmt.Fprintln(os.Stderr, err.Error())
fmt.Fprintln(os.Stderr, usageMessage)
return loadConfigError(err)
}
}
if cfg.RPCConnect == "" {
cfg.RPCConnect = net.JoinHostPort("localhost", activeNet.JSONRPCClientPort)
}
// Add default port to connect flag if missing.
cfg.RPCConnect, err = cfgutil.NormalizeAddress(cfg.RPCConnect,
activeNet.JSONRPCClientPort)
if err != nil {
fmt.Fprintf(os.Stderr,
"Invalid rpcconnect network address: %v\n", err)
return loadConfigError(err)
}
localhostListeners := map[string]struct{}{
"localhost": {},
"127.0.0.1": {},
"::1": {},
}
RPCHost, _, err := net.SplitHostPort(cfg.RPCConnect)
if err != nil {
return loadConfigError(err)
}
if cfg.DisableClientTLS {
if _, ok := localhostListeners[RPCHost]; !ok {
str := "%s: the --noclienttls option may not be used " +
"when connecting RPC to non localhost " +
"addresses: %s"
err := errors.Errorf(str, funcName, cfg.RPCConnect)
fmt.Fprintln(os.Stderr, err)
fmt.Fprintln(os.Stderr, usageMessage)
return loadConfigError(err)
}
} else {
// If CAFile is unset, choose either the copy or local fnod cert.
if !cfg.CAFile.ExplicitlySet() {
cfg.CAFile.Value = filepath.Join(cfg.AppDataDir.Value, defaultCAFilename)
// If the CA copy does not exist, check if we're connecting to
// a local fnod and switch to its RPC cert if it exists.
certExists, err := cfgutil.FileExists(cfg.CAFile.Value)
if err != nil {
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if !certExists {
if _, ok := localhostListeners[RPCHost]; ok {
fnodCertExists, err := cfgutil.FileExists(
fnodDefaultCAFile)
if err != nil {
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if fnodCertExists {
cfg.CAFile.Value = fnodDefaultCAFile
}
}
}
}
}
if cfg.SPV && cfg.EnableVoting {
err := errors.E("SPV voting is not possible: disable --spv or --enablevoting")
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
if !cfg.SPV && len(cfg.SPVConnect) > 0 {
err := errors.E("--spvconnect requires --spv")
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
for i, p := range cfg.SPVConnect {
cfg.SPVConnect[i], err = cfgutil.NormalizeAddress(p, activeNet.Params.DefaultPort)
if err != nil {
return loadConfigError(err)
}
}
// Default to localhost listen addresses if no listeners were manually
// specified. When the RPC server is configured to be disabled, remove all
// listeners so it is not started.
localhostAddrs, err := net.LookupHost("localhost")
if err != nil {
return loadConfigError(err)
}
if len(cfg.GRPCListeners) == 0 && !cfg.NoGRPC {
cfg.GRPCListeners = make([]string, 0, len(localhostAddrs))
for _, addr := range localhostAddrs {
cfg.GRPCListeners = append(cfg.GRPCListeners,
net.JoinHostPort(addr, activeNet.GRPCServerPort))
}
} else if cfg.NoGRPC {
cfg.GRPCListeners = nil
}
if len(cfg.LegacyRPCListeners) == 0 && !cfg.NoLegacyRPC {
cfg.LegacyRPCListeners = make([]string, 0, len(localhostAddrs))
for _, addr := range localhostAddrs {
cfg.LegacyRPCListeners = append(cfg.LegacyRPCListeners,
net.JoinHostPort(addr, activeNet.JSONRPCServerPort))
}
} else if cfg.NoLegacyRPC {
cfg.LegacyRPCListeners = nil
}
// Add default port to all rpc listener addresses if needed and remove
// duplicate addresses.
cfg.LegacyRPCListeners, err = cfgutil.NormalizeAddresses(
cfg.LegacyRPCListeners, activeNet.JSONRPCServerPort)
if err != nil {
fmt.Fprintf(os.Stderr,
"Invalid network address in legacy RPC listeners: %v\n", err)
return loadConfigError(err)
}
cfg.GRPCListeners, err = cfgutil.NormalizeAddresses(
cfg.GRPCListeners, activeNet.GRPCServerPort)
if err != nil {
fmt.Fprintf(os.Stderr,
"Invalid network address in RPC listeners: %v\n", err)
return loadConfigError(err)
}
// Both RPC servers may not listen on the same interface/port, with the
// exception of listeners using port 0.
if len(cfg.LegacyRPCListeners) > 0 && len(cfg.GRPCListeners) > 0 {
seenAddresses := make(map[string]struct{}, len(cfg.LegacyRPCListeners))
for _, addr := range cfg.LegacyRPCListeners {
seenAddresses[addr] = struct{}{}
}
for _, addr := range cfg.GRPCListeners {
_, seen := seenAddresses[addr]
if seen && !strings.HasSuffix(addr, ":0") {
err := errors.Errorf("Address `%s` may not be "+
"used as a listener address for both "+
"RPC servers", addr)
fmt.Fprintln(os.Stderr, err)
return loadConfigError(err)
}
}
}
// Only allow server TLS to be disabled if the RPC server is bound to
// localhost addresses.
if cfg.DisableServerTLS {
allListeners := append(cfg.LegacyRPCListeners, cfg.GRPCListeners...)
for _, addr := range allListeners {
host, _, err := net.SplitHostPort(addr)
if err != nil {
str := "%s: RPC listen interface '%s' is " +
"invalid: %v"
err := errors.Errorf(str, funcName, addr, err)
fmt.Fprintln(os.Stderr, err)
fmt.Fprintln(os.Stderr, usageMessage)
return loadConfigError(err)
}
if _, ok := localhostListeners[host]; !ok {
str := "%s: the --noservertls option may not be used " +
"when binding RPC to non localhost " +
"addresses: %s"
err := errors.Errorf(str, funcName, addr)
fmt.Fprintln(os.Stderr, err)
fmt.Fprintln(os.Stderr, usageMessage)
return loadConfigError(err)
}
}
}
// Expand environment variable and leading ~ for filepaths.
cfg.CAFile.Value = cleanAndExpandPath(cfg.CAFile.Value)
cfg.RPCCert.Value = cleanAndExpandPath(cfg.RPCCert.Value)
cfg.RPCKey.Value = cleanAndExpandPath(cfg.RPCKey.Value)
// If the fnod username or password are unset, use the same auth as for
// the client. The two settings were previously shared for fnod and
// client auth, so this avoids breaking backwards compatibility while
// allowing users to use different auth settings for fnod and wallet.
if cfg.DcrdUsername == "" {
cfg.DcrdUsername = cfg.Username
}
if cfg.DcrdPassword == "" {
cfg.DcrdPassword = cfg.Password
}
// Warn if user still has an old ticket buyer configuration file.
oldTBConfigFile := filepath.Join(cfg.AppDataDir.Value, "ticketbuyer.conf")
if _, err := os.Stat(oldTBConfigFile); err == nil {
log.Warnf("%s is no longer used and should be removed. "+
"Please prepend 'ticketbuyer.' to each option and "+
"move it under the [Ticket Buyer Options] section "+
"of %s\n",
oldTBConfigFile, configFilePath)
}
// Warn if user still is still using --ticketaddress
votingAddress := cfg.TBOpts.VotingAddress.Address
if cfg.TicketAddress.Address != nil {
log.Warnf("--ticketaddress has been DEPRECATED. Use " +
"--ticketbuyer.votingaddress instead")
if votingAddress == nil {
votingAddress = cfg.TicketAddress.Address
}
}
// Warn if user still is still using --addridxscanlen
if cfg.AddrIdxScanLen != defaultGapLimit && cfg.GapLimit == defaultGapLimit {
log.Warnf("--addridxscanlen has been DEPRECATED. Use " +
"--gaplimit instead")
cfg.GapLimit = cfg.AddrIdxScanLen
}
// Build ticketbuyer config
cfg.tbCfg = ticketbuyer.Config{
AccountName: cfg.PurchaseAccount,
AvgPriceMode: cfg.TBOpts.AvgPriceMode,
AvgPriceVWAPDelta: cfg.TBOpts.AvgPriceVWAPDelta,
BalanceToMaintainAbsolute: int64(cfg.TBOpts.BalanceToMaintainAbsolute.Amount),
BalanceToMaintainRelative: cfg.TBOpts.BalanceToMaintainRelative,