298 lines
14 KiB
C++
298 lines
14 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2017 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <wallet/init.h>
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#include <net.h>
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#include <util.h>
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#include <utilmoneystr.h>
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#include <validation.h>
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#include <wallet/rpcwallet.h>
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#include <wallet/wallet.h>
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#include <wallet/walletutil.h>
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std::string GetWalletHelpString(bool showDebug)
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{
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std::string strUsage = HelpMessageGroup(_("Wallet options:"));
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strUsage += HelpMessageOpt("-disablewallet", _("Do not load the wallet and disable wallet RPC calls"));
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strUsage += HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), DEFAULT_KEYPOOL_SIZE));
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strUsage += HelpMessageOpt("-fallbackfee=<amt>", strprintf(_("A fee rate (in %s/kB) that will be used when fee estimation has insufficient data (default: %s)"),
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CURRENCY_UNIT, FormatMoney(DEFAULT_FALLBACK_FEE)));
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strUsage += HelpMessageOpt("-discardfee=<amt>", strprintf(_("The fee rate (in %s/kB) that indicates your tolerance for discarding change by adding it to the fee (default: %s). "
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"Note: An output is discarded if it is dust at this rate, but we will always discard up to the dust relay fee and a discard fee above that is limited by the fee estimate for the longest target"),
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CURRENCY_UNIT, FormatMoney(DEFAULT_DISCARD_FEE)));
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strUsage += HelpMessageOpt("-mintxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for transaction creation (default: %s)"),
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CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MINFEE)));
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strUsage += HelpMessageOpt("-paytxfee=<amt>", strprintf(_("Fee (in %s/kB) to add to transactions you send (default: %s)"),
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CURRENCY_UNIT, FormatMoney(payTxFee.GetFeePerK())));
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strUsage += HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions on startup"));
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strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet on startup"));
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strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE));
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strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
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strUsage += HelpMessageOpt("-walletrbf", strprintf(_("Send transactions with full-RBF opt-in enabled (default: %u)"), DEFAULT_WALLET_RBF));
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strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));
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strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT));
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strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST));
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strUsage += HelpMessageOpt("-walletdir=<dir>", _("Specify directory to hold wallets (default: <datadir>/wallets if it exists, otherwise <datadir>)"));
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strUsage += HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
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strUsage += HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
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" " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
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if (showDebug)
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{
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strUsage += HelpMessageGroup(_("Wallet debugging/testing options:"));
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strUsage += HelpMessageOpt("-dblogsize=<n>", strprintf("Flush wallet database activity from memory to disk log every <n> megabytes (default: %u)", DEFAULT_WALLET_DBLOGSIZE));
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strUsage += HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", DEFAULT_FLUSHWALLET));
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strUsage += HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", DEFAULT_WALLET_PRIVDB));
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strUsage += HelpMessageOpt("-walletrejectlongchains", strprintf(_("Wallet will not create transactions that violate mempool chain limits (default: %u)"), DEFAULT_WALLET_REJECT_LONG_CHAINS));
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}
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return strUsage;
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}
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bool WalletParameterInteraction()
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{
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if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
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for (const std::string& wallet : gArgs.GetArgs("-wallet")) {
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LogPrintf("%s: parameter interaction: -disablewallet -> ignoring -wallet=%s\n", __func__, wallet);
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}
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return true;
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}
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gArgs.SoftSetArg("-wallet", DEFAULT_WALLET_DAT);
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const bool is_multiwallet = gArgs.GetArgs("-wallet").size() > 1;
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if (gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && gArgs.SoftSetBoolArg("-walletbroadcast", false)) {
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LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
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}
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if (gArgs.GetBoolArg("-salvagewallet", false)) {
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if (is_multiwallet) {
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return InitError(strprintf("%s is only allowed with a single wallet file", "-salvagewallet"));
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}
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// Rewrite just private keys: rescan to find transactions
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if (gArgs.SoftSetBoolArg("-rescan", true)) {
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LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
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}
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}
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int zapwallettxes = gArgs.GetArg("-zapwallettxes", 0);
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// -zapwallettxes implies dropping the mempool on startup
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if (zapwallettxes != 0 && gArgs.SoftSetBoolArg("-persistmempool", false)) {
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LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -persistmempool=0\n", __func__, zapwallettxes);
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}
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// -zapwallettxes implies a rescan
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if (zapwallettxes != 0) {
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if (is_multiwallet) {
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return InitError(strprintf("%s is only allowed with a single wallet file", "-zapwallettxes"));
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}
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if (gArgs.SoftSetBoolArg("-rescan", true)) {
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LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -rescan=1\n", __func__, zapwallettxes);
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}
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}
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if (is_multiwallet) {
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if (gArgs.GetBoolArg("-upgradewallet", false)) {
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return InitError(strprintf("%s is only allowed with a single wallet file", "-upgradewallet"));
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}
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}
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if (gArgs.GetBoolArg("-sysperms", false))
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return InitError("-sysperms is not allowed in combination with enabled wallet functionality");
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if (gArgs.GetArg("-prune", 0) && gArgs.GetBoolArg("-rescan", false))
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return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again."));
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if (::minRelayTxFee.GetFeePerK() > HIGH_TX_FEE_PER_KB)
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InitWarning(AmountHighWarn("-minrelaytxfee") + " " +
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_("The wallet will avoid paying less than the minimum relay fee."));
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if (gArgs.IsArgSet("-mintxfee"))
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{
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CAmount n = 0;
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if (!ParseMoney(gArgs.GetArg("-mintxfee", ""), n) || 0 == n)
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return InitError(AmountErrMsg("mintxfee", gArgs.GetArg("-mintxfee", "")));
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if (n > HIGH_TX_FEE_PER_KB)
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InitWarning(AmountHighWarn("-mintxfee") + " " +
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_("This is the minimum transaction fee you pay on every transaction."));
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CWallet::minTxFee = CFeeRate(n);
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}
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if (gArgs.IsArgSet("-fallbackfee"))
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{
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CAmount nFeePerK = 0;
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if (!ParseMoney(gArgs.GetArg("-fallbackfee", ""), nFeePerK))
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return InitError(strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), gArgs.GetArg("-fallbackfee", "")));
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if (nFeePerK > HIGH_TX_FEE_PER_KB)
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InitWarning(AmountHighWarn("-fallbackfee") + " " +
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_("This is the transaction fee you may pay when fee estimates are not available."));
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CWallet::fallbackFee = CFeeRate(nFeePerK);
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}
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if (gArgs.IsArgSet("-discardfee"))
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{
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CAmount nFeePerK = 0;
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if (!ParseMoney(gArgs.GetArg("-discardfee", ""), nFeePerK))
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return InitError(strprintf(_("Invalid amount for -discardfee=<amount>: '%s'"), gArgs.GetArg("-discardfee", "")));
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if (nFeePerK > HIGH_TX_FEE_PER_KB)
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InitWarning(AmountHighWarn("-discardfee") + " " +
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_("This is the transaction fee you may discard if change is smaller than dust at this level"));
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CWallet::m_discard_rate = CFeeRate(nFeePerK);
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}
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if (gArgs.IsArgSet("-paytxfee"))
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{
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CAmount nFeePerK = 0;
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if (!ParseMoney(gArgs.GetArg("-paytxfee", ""), nFeePerK))
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return InitError(AmountErrMsg("paytxfee", gArgs.GetArg("-paytxfee", "")));
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if (nFeePerK > HIGH_TX_FEE_PER_KB)
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InitWarning(AmountHighWarn("-paytxfee") + " " +
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_("This is the transaction fee you will pay if you send a transaction."));
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payTxFee = CFeeRate(nFeePerK, 1000);
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if (payTxFee < ::minRelayTxFee)
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{
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return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
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gArgs.GetArg("-paytxfee", ""), ::minRelayTxFee.ToString()));
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}
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}
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if (gArgs.IsArgSet("-maxtxfee"))
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{
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CAmount nMaxFee = 0;
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if (!ParseMoney(gArgs.GetArg("-maxtxfee", ""), nMaxFee))
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return InitError(AmountErrMsg("maxtxfee", gArgs.GetArg("-maxtxfee", "")));
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if (nMaxFee > HIGH_MAX_TX_FEE)
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InitWarning(_("-maxtxfee is set very high! Fees this large could be paid on a single transaction."));
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maxTxFee = nMaxFee;
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if (CFeeRate(maxTxFee, 1000) < ::minRelayTxFee)
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{
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return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
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gArgs.GetArg("-maxtxfee", ""), ::minRelayTxFee.ToString()));
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}
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}
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nTxConfirmTarget = gArgs.GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
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bSpendZeroConfChange = gArgs.GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
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fWalletRbf = gArgs.GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF);
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return true;
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}
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void RegisterWalletRPC(CRPCTable &t)
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{
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if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
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return;
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}
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RegisterWalletRPCCommands(t);
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}
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bool VerifyWallets()
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{
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if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
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return true;
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}
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if (gArgs.IsArgSet("-walletdir") && !fs::is_directory(GetWalletDir())) {
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if (fs::exists(fs::system_complete(gArgs.GetArg("-walletdir", "")))) {
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return InitError(strprintf(_("Specified -walletdir \"%s\" is not a directory"), gArgs.GetArg("-walletdir", "").c_str()));
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}
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return InitError(strprintf(_("Specified -walletdir \"%s\" does not exist"), gArgs.GetArg("-walletdir", "").c_str()));
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}
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LogPrintf("Using wallet directory %s\n", GetWalletDir().string());
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uiInterface.InitMessage(_("Verifying wallet(s)..."));
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// Keep track of each wallet absolute path to detect duplicates.
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std::set<fs::path> wallet_paths;
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for (const std::string& walletFile : gArgs.GetArgs("-wallet")) {
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if (boost::filesystem::path(walletFile).filename() != walletFile) {
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return InitError(strprintf(_("Error loading wallet %s. -wallet parameter must only specify a filename (not a path)."), walletFile));
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}
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if (SanitizeString(walletFile, SAFE_CHARS_FILENAME) != walletFile) {
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return InitError(strprintf(_("Error loading wallet %s. Invalid characters in -wallet filename."), walletFile));
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}
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fs::path wallet_path = fs::absolute(walletFile, GetWalletDir());
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if (fs::exists(wallet_path) && (!fs::is_regular_file(wallet_path) || fs::is_symlink(wallet_path))) {
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return InitError(strprintf(_("Error loading wallet %s. -wallet filename must be a regular file."), walletFile));
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}
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if (!wallet_paths.insert(wallet_path).second) {
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return InitError(strprintf(_("Error loading wallet %s. Duplicate -wallet filename specified."), walletFile));
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}
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std::string strError;
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if (!CWalletDB::VerifyEnvironment(walletFile, GetWalletDir().string(), strError)) {
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return InitError(strError);
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}
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if (gArgs.GetBoolArg("-salvagewallet", false)) {
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// Recover readable keypairs:
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CWallet dummyWallet;
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std::string backup_filename;
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if (!CWalletDB::Recover(walletFile, (void *)&dummyWallet, CWalletDB::RecoverKeysOnlyFilter, backup_filename)) {
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return false;
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}
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}
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std::string strWarning;
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bool dbV = CWalletDB::VerifyDatabaseFile(walletFile, GetWalletDir().string(), strWarning, strError);
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if (!strWarning.empty()) {
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InitWarning(strWarning);
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}
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if (!dbV) {
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InitError(strError);
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return false;
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}
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}
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return true;
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}
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bool OpenWallets()
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{
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if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
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LogPrintf("Wallet disabled!\n");
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return true;
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}
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for (const std::string& walletFile : gArgs.GetArgs("-wallet")) {
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CWallet * const pwallet = CWallet::CreateWalletFromFile(walletFile);
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if (!pwallet) {
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return false;
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}
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vpwallets.push_back(pwallet);
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}
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return true;
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}
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void StartWallets(CScheduler& scheduler) {
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for (CWalletRef pwallet : vpwallets) {
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pwallet->postInitProcess(scheduler);
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}
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}
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void FlushWallets() {
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for (CWalletRef pwallet : vpwallets) {
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pwallet->Flush(false);
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}
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}
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void StopWallets() {
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for (CWalletRef pwallet : vpwallets) {
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pwallet->Flush(true);
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}
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}
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void CloseWallets() {
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for (CWalletRef pwallet : vpwallets) {
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delete pwallet;
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}
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vpwallets.clear();
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}
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