4302 lines
150 KiB
C++
4302 lines
150 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/wallet.h>
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#include <base58.h>
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#include <checkpoints.h>
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#include <chain.h>
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#include <wallet/coincontrol.h>
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#include <consensus/consensus.h>
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#include <consensus/validation.h>
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#include <fs.h>
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#include <wallet/init.h>
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#include <key.h>
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#include <keystore.h>
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#include <validation.h>
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#include <net.h>
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#include <policy/fees.h>
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#include <policy/policy.h>
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#include <policy/rbf.h>
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#include <primitives/block.h>
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#include <primitives/transaction.h>
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#include <script/script.h>
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#include <scheduler.h>
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#include <timedata.h>
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#include <txmempool.h>
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#include <util.h>
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#include <utilmoneystr.h>
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#include <wallet/fees.h>
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#include <assert.h>
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#include <future>
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#include <boost/algorithm/string/replace.hpp>
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#include <boost/thread.hpp>
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std::vector<CWalletRef> vpwallets;
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/** Transaction fee set by the user */
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CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
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unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET;
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bool bSpendZeroConfChange = DEFAULT_SPEND_ZEROCONF_CHANGE;
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bool fWalletRbf = DEFAULT_WALLET_RBF;
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OutputType g_address_type = OUTPUT_TYPE_NONE;
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OutputType g_change_type = OUTPUT_TYPE_NONE;
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const char * DEFAULT_WALLET_DAT = "wallet.dat";
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const uint32_t BIP32_HARDENED_KEY_LIMIT = 0x80000000;
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/**
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* Fees smaller than this (in satoshi) are considered zero fee (for transaction creation)
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* Override with -mintxfee
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*/
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CFeeRate CWallet::minTxFee = CFeeRate(DEFAULT_TRANSACTION_MINFEE);
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/**
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* If fee estimation does not have enough data to provide estimates, use this fee instead.
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* Has no effect if not using fee estimation
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* Override with -fallbackfee
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*/
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CFeeRate CWallet::fallbackFee = CFeeRate(DEFAULT_FALLBACK_FEE);
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CFeeRate CWallet::m_discard_rate = CFeeRate(DEFAULT_DISCARD_FEE);
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const uint256 CMerkleTx::ABANDON_HASH(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
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/** @defgroup mapWallet
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*
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* @{
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*/
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struct CompareValueOnly
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{
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bool operator()(const CInputCoin& t1,
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const CInputCoin& t2) const
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{
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return t1.txout.nValue < t2.txout.nValue;
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}
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};
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std::string COutput::ToString() const
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{
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return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString(), i, nDepth, FormatMoney(tx->tx->vout[i].nValue));
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}
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class CAffectedKeysVisitor : public boost::static_visitor<void> {
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private:
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const CKeyStore &keystore;
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std::vector<CKeyID> &vKeys;
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public:
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CAffectedKeysVisitor(const CKeyStore &keystoreIn, std::vector<CKeyID> &vKeysIn) : keystore(keystoreIn), vKeys(vKeysIn) {}
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void Process(const CScript &script) {
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txnouttype type;
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std::vector<CTxDestination> vDest;
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int nRequired;
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if (ExtractDestinations(script, type, vDest, nRequired)) {
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for (const CTxDestination &dest : vDest)
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boost::apply_visitor(*this, dest);
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}
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}
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void operator()(const CKeyID &keyId) {
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if (keystore.HaveKey(keyId))
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vKeys.push_back(keyId);
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}
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void operator()(const CScriptID &scriptId) {
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CScript script;
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if (keystore.GetCScript(scriptId, script))
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Process(script);
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}
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void operator()(const WitnessV0ScriptHash& scriptID)
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{
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CScriptID id;
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CRIPEMD160().Write(scriptID.begin(), 32).Finalize(id.begin());
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CScript script;
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if (keystore.GetCScript(id, script)) {
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Process(script);
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}
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}
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void operator()(const WitnessV0KeyHash& keyid)
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{
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CKeyID id(keyid);
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if (keystore.HaveKey(id)) {
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vKeys.push_back(id);
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}
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}
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template<typename X>
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void operator()(const X &none) {}
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};
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const CWalletTx* CWallet::GetWalletTx(const uint256& hash) const
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{
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LOCK(cs_wallet);
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std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(hash);
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if (it == mapWallet.end())
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return nullptr;
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return &(it->second);
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}
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CPubKey CWallet::GenerateNewKey(CWalletDB &walletdb, bool internal)
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{
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AssertLockHeld(cs_wallet); // mapKeyMetadata
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bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
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CKey secret;
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// Create new metadata
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int64_t nCreationTime = GetTime();
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CKeyMetadata metadata(nCreationTime);
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// use HD key derivation if HD was enabled during wallet creation
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if (IsHDEnabled()) {
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DeriveNewChildKey(walletdb, metadata, secret, (CanSupportFeature(FEATURE_HD_SPLIT) ? internal : false));
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} else {
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secret.MakeNewKey(fCompressed);
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}
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// Compressed public keys were introduced in version 0.6.0
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if (fCompressed) {
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SetMinVersion(FEATURE_COMPRPUBKEY);
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}
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CPubKey pubkey = secret.GetPubKey();
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assert(secret.VerifyPubKey(pubkey));
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mapKeyMetadata[pubkey.GetID()] = metadata;
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UpdateTimeFirstKey(nCreationTime);
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if (!AddKeyPubKeyWithDB(walletdb, secret, pubkey)) {
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throw std::runtime_error(std::string(__func__) + ": AddKey failed");
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}
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return pubkey;
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}
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void CWallet::DeriveNewChildKey(CWalletDB &walletdb, CKeyMetadata& metadata, CKey& secret, bool internal)
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{
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// for now we use a fixed keypath scheme of m/0'/0'/k
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CKey key; //master key seed (256bit)
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CExtKey masterKey; //hd master key
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CExtKey accountKey; //key at m/0'
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CExtKey chainChildKey; //key at m/0'/0' (external) or m/0'/1' (internal)
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CExtKey childKey; //key at m/0'/0'/<n>'
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// try to get the master key
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if (!GetKey(hdChain.masterKeyID, key))
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throw std::runtime_error(std::string(__func__) + ": Master key not found");
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masterKey.SetMaster(key.begin(), key.size());
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// derive m/0'
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// use hardened derivation (child keys >= 0x80000000 are hardened after bip32)
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masterKey.Derive(accountKey, BIP32_HARDENED_KEY_LIMIT);
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// derive m/0'/0' (external chain) OR m/0'/1' (internal chain)
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assert(internal ? CanSupportFeature(FEATURE_HD_SPLIT) : true);
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accountKey.Derive(chainChildKey, BIP32_HARDENED_KEY_LIMIT+(internal ? 1 : 0));
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// derive child key at next index, skip keys already known to the wallet
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do {
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// always derive hardened keys
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// childIndex | BIP32_HARDENED_KEY_LIMIT = derive childIndex in hardened child-index-range
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// example: 1 | BIP32_HARDENED_KEY_LIMIT == 0x80000001 == 2147483649
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if (internal) {
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chainChildKey.Derive(childKey, hdChain.nInternalChainCounter | BIP32_HARDENED_KEY_LIMIT);
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metadata.hdKeypath = "m/0'/1'/" + std::to_string(hdChain.nInternalChainCounter) + "'";
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hdChain.nInternalChainCounter++;
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}
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else {
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chainChildKey.Derive(childKey, hdChain.nExternalChainCounter | BIP32_HARDENED_KEY_LIMIT);
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metadata.hdKeypath = "m/0'/0'/" + std::to_string(hdChain.nExternalChainCounter) + "'";
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hdChain.nExternalChainCounter++;
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}
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} while (HaveKey(childKey.key.GetPubKey().GetID()));
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secret = childKey.key;
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metadata.hdMasterKeyID = hdChain.masterKeyID;
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// update the chain model in the database
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if (!walletdb.WriteHDChain(hdChain))
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throw std::runtime_error(std::string(__func__) + ": Writing HD chain model failed");
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}
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bool CWallet::AddKeyPubKeyWithDB(CWalletDB &walletdb, const CKey& secret, const CPubKey &pubkey)
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{
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AssertLockHeld(cs_wallet); // mapKeyMetadata
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// CCryptoKeyStore has no concept of wallet databases, but calls AddCryptedKey
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// which is overridden below. To avoid flushes, the database handle is
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// tunneled through to it.
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bool needsDB = !pwalletdbEncryption;
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if (needsDB) {
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pwalletdbEncryption = &walletdb;
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}
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if (!CCryptoKeyStore::AddKeyPubKey(secret, pubkey)) {
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if (needsDB) pwalletdbEncryption = nullptr;
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return false;
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}
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if (needsDB) pwalletdbEncryption = nullptr;
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// check if we need to remove from watch-only
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CScript script;
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script = GetScriptForDestination(pubkey.GetID());
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if (HaveWatchOnly(script)) {
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RemoveWatchOnly(script);
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}
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script = GetScriptForRawPubKey(pubkey);
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if (HaveWatchOnly(script)) {
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RemoveWatchOnly(script);
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}
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if (!IsCrypted()) {
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return walletdb.WriteKey(pubkey,
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secret.GetPrivKey(),
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mapKeyMetadata[pubkey.GetID()]);
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}
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return true;
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}
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bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey)
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{
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CWalletDB walletdb(*dbw);
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return CWallet::AddKeyPubKeyWithDB(walletdb, secret, pubkey);
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}
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bool CWallet::AddCryptedKey(const CPubKey &vchPubKey,
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const std::vector<unsigned char> &vchCryptedSecret)
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{
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if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
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return false;
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{
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LOCK(cs_wallet);
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if (pwalletdbEncryption)
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return pwalletdbEncryption->WriteCryptedKey(vchPubKey,
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vchCryptedSecret,
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mapKeyMetadata[vchPubKey.GetID()]);
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else
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return CWalletDB(*dbw).WriteCryptedKey(vchPubKey,
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vchCryptedSecret,
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mapKeyMetadata[vchPubKey.GetID()]);
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}
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}
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bool CWallet::LoadKeyMetadata(const CKeyID& keyID, const CKeyMetadata &meta)
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{
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AssertLockHeld(cs_wallet); // mapKeyMetadata
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UpdateTimeFirstKey(meta.nCreateTime);
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mapKeyMetadata[keyID] = meta;
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return true;
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}
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bool CWallet::LoadScriptMetadata(const CScriptID& script_id, const CKeyMetadata &meta)
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{
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AssertLockHeld(cs_wallet); // m_script_metadata
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UpdateTimeFirstKey(meta.nCreateTime);
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m_script_metadata[script_id] = meta;
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return true;
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}
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bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
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{
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return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret);
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}
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/**
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* Update wallet first key creation time. This should be called whenever keys
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* are added to the wallet, with the oldest key creation time.
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*/
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void CWallet::UpdateTimeFirstKey(int64_t nCreateTime)
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{
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AssertLockHeld(cs_wallet);
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if (nCreateTime <= 1) {
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// Cannot determine birthday information, so set the wallet birthday to
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// the beginning of time.
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nTimeFirstKey = 1;
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} else if (!nTimeFirstKey || nCreateTime < nTimeFirstKey) {
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nTimeFirstKey = nCreateTime;
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}
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}
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bool CWallet::AddCScript(const CScript& redeemScript)
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{
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if (!CCryptoKeyStore::AddCScript(redeemScript))
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return false;
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return CWalletDB(*dbw).WriteCScript(Hash160(redeemScript), redeemScript);
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}
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bool CWallet::LoadCScript(const CScript& redeemScript)
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{
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/* A sanity check was added in pull #3843 to avoid adding redeemScripts
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* that never can be redeemed. However, old wallets may still contain
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* these. Do not add them to the wallet and warn. */
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if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
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{
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std::string strAddr = EncodeDestination(CScriptID(redeemScript));
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LogPrintf("%s: Warning: This wallet contains a redeemScript of size %i which exceeds maximum size %i thus can never be redeemed. Do not use address %s.\n",
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__func__, redeemScript.size(), MAX_SCRIPT_ELEMENT_SIZE, strAddr);
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return true;
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}
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return CCryptoKeyStore::AddCScript(redeemScript);
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}
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bool CWallet::AddWatchOnly(const CScript& dest)
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{
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if (!CCryptoKeyStore::AddWatchOnly(dest))
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return false;
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const CKeyMetadata& meta = m_script_metadata[CScriptID(dest)];
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UpdateTimeFirstKey(meta.nCreateTime);
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NotifyWatchonlyChanged(true);
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return CWalletDB(*dbw).WriteWatchOnly(dest, meta);
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}
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bool CWallet::AddWatchOnly(const CScript& dest, int64_t nCreateTime)
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{
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m_script_metadata[CScriptID(dest)].nCreateTime = nCreateTime;
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return AddWatchOnly(dest);
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}
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bool CWallet::RemoveWatchOnly(const CScript &dest)
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{
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AssertLockHeld(cs_wallet);
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if (!CCryptoKeyStore::RemoveWatchOnly(dest))
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return false;
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if (!HaveWatchOnly())
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NotifyWatchonlyChanged(false);
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if (!CWalletDB(*dbw).EraseWatchOnly(dest))
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return false;
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return true;
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}
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bool CWallet::LoadWatchOnly(const CScript &dest)
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{
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return CCryptoKeyStore::AddWatchOnly(dest);
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}
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bool CWallet::Unlock(const SecureString& strWalletPassphrase)
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{
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CCrypter crypter;
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CKeyingMaterial _vMasterKey;
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{
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LOCK(cs_wallet);
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for (const MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
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{
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if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, _vMasterKey))
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continue; // try another master key
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if (CCryptoKeyStore::Unlock(_vMasterKey))
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return true;
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}
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}
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return false;
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}
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bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
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{
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bool fWasLocked = IsLocked();
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{
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LOCK(cs_wallet);
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Lock();
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CCrypter crypter;
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CKeyingMaterial _vMasterKey;
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for (MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
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{
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if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, _vMasterKey))
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return false;
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if (CCryptoKeyStore::Unlock(_vMasterKey))
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{
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int64_t nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
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pMasterKey.second.nDeriveIterations = static_cast<unsigned int>(pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime))));
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nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
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pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + static_cast<unsigned int>(pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime)))) / 2;
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if (pMasterKey.second.nDeriveIterations < 25000)
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pMasterKey.second.nDeriveIterations = 25000;
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LogPrintf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
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if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Encrypt(_vMasterKey, pMasterKey.second.vchCryptedKey))
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return false;
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CWalletDB(*dbw).WriteMasterKey(pMasterKey.first, pMasterKey.second);
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if (fWasLocked)
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Lock();
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return true;
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}
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}
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}
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return false;
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}
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void CWallet::SetBestChain(const CBlockLocator& loc)
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{
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CWalletDB walletdb(*dbw);
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walletdb.WriteBestBlock(loc);
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}
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bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
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{
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LOCK(cs_wallet); // nWalletVersion
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if (nWalletVersion >= nVersion)
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return true;
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// when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
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if (fExplicit && nVersion > nWalletMaxVersion)
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nVersion = FEATURE_LATEST;
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nWalletVersion = nVersion;
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if (nVersion > nWalletMaxVersion)
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nWalletMaxVersion = nVersion;
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{
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CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(*dbw);
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if (nWalletVersion > 40000)
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pwalletdb->WriteMinVersion(nWalletVersion);
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if (!pwalletdbIn)
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delete pwalletdb;
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}
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return true;
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}
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|
|
bool CWallet::SetMaxVersion(int nVersion)
|
|
{
|
|
LOCK(cs_wallet); // nWalletVersion, nWalletMaxVersion
|
|
// cannot downgrade below current version
|
|
if (nWalletVersion > nVersion)
|
|
return false;
|
|
|
|
nWalletMaxVersion = nVersion;
|
|
|
|
return true;
|
|
}
|
|
|
|
std::set<uint256> CWallet::GetConflicts(const uint256& txid) const
|
|
{
|
|
std::set<uint256> result;
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid);
|
|
if (it == mapWallet.end())
|
|
return result;
|
|
const CWalletTx& wtx = it->second;
|
|
|
|
std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
|
|
|
|
for (const CTxIn& txin : wtx.tx->vin)
|
|
{
|
|
if (mapTxSpends.count(txin.prevout) <= 1)
|
|
continue; // No conflict if zero or one spends
|
|
range = mapTxSpends.equal_range(txin.prevout);
|
|
for (TxSpends::const_iterator _it = range.first; _it != range.second; ++_it)
|
|
result.insert(_it->second);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool CWallet::HasWalletSpend(const uint256& txid) const
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
auto iter = mapTxSpends.lower_bound(COutPoint(txid, 0));
|
|
return (iter != mapTxSpends.end() && iter->first.hash == txid);
|
|
}
|
|
|
|
void CWallet::Flush(bool shutdown)
|
|
{
|
|
dbw->Flush(shutdown);
|
|
}
|
|
|
|
void CWallet::SyncMetaData(std::pair<TxSpends::iterator, TxSpends::iterator> range)
|
|
{
|
|
// We want all the wallet transactions in range to have the same metadata as
|
|
// the oldest (smallest nOrderPos).
|
|
// So: find smallest nOrderPos:
|
|
|
|
int nMinOrderPos = std::numeric_limits<int>::max();
|
|
const CWalletTx* copyFrom = nullptr;
|
|
for (TxSpends::iterator it = range.first; it != range.second; ++it) {
|
|
const CWalletTx* wtx = &mapWallet[it->second];
|
|
if (wtx->nOrderPos < nMinOrderPos) {
|
|
nMinOrderPos = wtx->nOrderPos;;
|
|
copyFrom = wtx;
|
|
}
|
|
}
|
|
|
|
assert(copyFrom);
|
|
|
|
// Now copy data from copyFrom to rest:
|
|
for (TxSpends::iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& hash = it->second;
|
|
CWalletTx* copyTo = &mapWallet[hash];
|
|
if (copyFrom == copyTo) continue;
|
|
assert(copyFrom && "Oldest wallet transaction in range assumed to have been found.");
|
|
if (!copyFrom->IsEquivalentTo(*copyTo)) continue;
|
|
copyTo->mapValue = copyFrom->mapValue;
|
|
copyTo->vOrderForm = copyFrom->vOrderForm;
|
|
// fTimeReceivedIsTxTime not copied on purpose
|
|
// nTimeReceived not copied on purpose
|
|
copyTo->nTimeSmart = copyFrom->nTimeSmart;
|
|
copyTo->fFromMe = copyFrom->fFromMe;
|
|
copyTo->strFromAccount = copyFrom->strFromAccount;
|
|
// nOrderPos not copied on purpose
|
|
// cached members not copied on purpose
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Outpoint is spent if any non-conflicted transaction
|
|
* spends it:
|
|
*/
|
|
bool CWallet::IsSpent(const uint256& hash, unsigned int n) const
|
|
{
|
|
const COutPoint outpoint(hash, n);
|
|
std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
|
|
range = mapTxSpends.equal_range(outpoint);
|
|
|
|
for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& wtxid = it->second;
|
|
std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
|
|
if (mit != mapWallet.end()) {
|
|
int depth = mit->second.GetDepthInMainChain();
|
|
if (depth > 0 || (depth == 0 && !mit->second.isAbandoned()))
|
|
return true; // Spent
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CWallet::AddToSpends(const COutPoint& outpoint, const uint256& wtxid)
|
|
{
|
|
mapTxSpends.insert(std::make_pair(outpoint, wtxid));
|
|
|
|
std::pair<TxSpends::iterator, TxSpends::iterator> range;
|
|
range = mapTxSpends.equal_range(outpoint);
|
|
SyncMetaData(range);
|
|
}
|
|
|
|
|
|
void CWallet::AddToSpends(const uint256& wtxid)
|
|
{
|
|
auto it = mapWallet.find(wtxid);
|
|
assert(it != mapWallet.end());
|
|
CWalletTx& thisTx = it->second;
|
|
if (thisTx.IsCoinBase()) // Coinbases don't spend anything!
|
|
return;
|
|
|
|
for (const CTxIn& txin : thisTx.tx->vin)
|
|
AddToSpends(txin.prevout, wtxid);
|
|
}
|
|
|
|
bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
|
|
{
|
|
if (IsCrypted())
|
|
return false;
|
|
|
|
CKeyingMaterial _vMasterKey;
|
|
|
|
_vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
|
|
GetStrongRandBytes(&_vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
|
|
|
|
CMasterKey kMasterKey;
|
|
|
|
kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
|
|
GetStrongRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
|
|
|
|
CCrypter crypter;
|
|
int64_t nStartTime = GetTimeMillis();
|
|
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
|
|
kMasterKey.nDeriveIterations = static_cast<unsigned int>(2500000 / ((double)(GetTimeMillis() - nStartTime)));
|
|
|
|
nStartTime = GetTimeMillis();
|
|
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
|
|
kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + static_cast<unsigned int>(kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime)))) / 2;
|
|
|
|
if (kMasterKey.nDeriveIterations < 25000)
|
|
kMasterKey.nDeriveIterations = 25000;
|
|
|
|
LogPrintf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
|
|
|
|
if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
|
|
return false;
|
|
if (!crypter.Encrypt(_vMasterKey, kMasterKey.vchCryptedKey))
|
|
return false;
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
|
|
assert(!pwalletdbEncryption);
|
|
pwalletdbEncryption = new CWalletDB(*dbw);
|
|
if (!pwalletdbEncryption->TxnBegin()) {
|
|
delete pwalletdbEncryption;
|
|
pwalletdbEncryption = nullptr;
|
|
return false;
|
|
}
|
|
pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
|
|
|
|
if (!EncryptKeys(_vMasterKey))
|
|
{
|
|
pwalletdbEncryption->TxnAbort();
|
|
delete pwalletdbEncryption;
|
|
// We now probably have half of our keys encrypted in memory, and half not...
|
|
// die and let the user reload the unencrypted wallet.
|
|
assert(false);
|
|
}
|
|
|
|
// Encryption was introduced in version 0.4.0
|
|
SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
|
|
|
|
if (!pwalletdbEncryption->TxnCommit()) {
|
|
delete pwalletdbEncryption;
|
|
// We now have keys encrypted in memory, but not on disk...
|
|
// die to avoid confusion and let the user reload the unencrypted wallet.
|
|
assert(false);
|
|
}
|
|
|
|
delete pwalletdbEncryption;
|
|
pwalletdbEncryption = nullptr;
|
|
|
|
Lock();
|
|
Unlock(strWalletPassphrase);
|
|
|
|
// if we are using HD, replace the HD master key (seed) with a new one
|
|
if (IsHDEnabled()) {
|
|
if (!SetHDMasterKey(GenerateNewHDMasterKey())) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
NewKeyPool();
|
|
Lock();
|
|
|
|
// Need to completely rewrite the wallet file; if we don't, bdb might keep
|
|
// bits of the unencrypted private key in slack space in the database file.
|
|
dbw->Rewrite();
|
|
|
|
}
|
|
NotifyStatusChanged(this);
|
|
|
|
return true;
|
|
}
|
|
|
|
DBErrors CWallet::ReorderTransactions()
|
|
{
|
|
LOCK(cs_wallet);
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
// Old wallets didn't have any defined order for transactions
|
|
// Probably a bad idea to change the output of this
|
|
|
|
// First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
|
|
typedef std::pair<CWalletTx*, CAccountingEntry*> TxPair;
|
|
typedef std::multimap<int64_t, TxPair > TxItems;
|
|
TxItems txByTime;
|
|
|
|
for (auto& entry : mapWallet)
|
|
{
|
|
CWalletTx* wtx = &entry.second;
|
|
txByTime.insert(std::make_pair(wtx->nTimeReceived, TxPair(wtx, nullptr)));
|
|
}
|
|
std::list<CAccountingEntry> acentries;
|
|
walletdb.ListAccountCreditDebit("", acentries);
|
|
for (CAccountingEntry& entry : acentries)
|
|
{
|
|
txByTime.insert(std::make_pair(entry.nTime, TxPair(nullptr, &entry)));
|
|
}
|
|
|
|
nOrderPosNext = 0;
|
|
std::vector<int64_t> nOrderPosOffsets;
|
|
for (TxItems::iterator it = txByTime.begin(); it != txByTime.end(); ++it)
|
|
{
|
|
CWalletTx *const pwtx = (*it).second.first;
|
|
CAccountingEntry *const pacentry = (*it).second.second;
|
|
int64_t& nOrderPos = (pwtx != nullptr) ? pwtx->nOrderPos : pacentry->nOrderPos;
|
|
|
|
if (nOrderPos == -1)
|
|
{
|
|
nOrderPos = nOrderPosNext++;
|
|
nOrderPosOffsets.push_back(nOrderPos);
|
|
|
|
if (pwtx)
|
|
{
|
|
if (!walletdb.WriteTx(*pwtx))
|
|
return DB_LOAD_FAIL;
|
|
}
|
|
else
|
|
if (!walletdb.WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
|
|
return DB_LOAD_FAIL;
|
|
}
|
|
else
|
|
{
|
|
int64_t nOrderPosOff = 0;
|
|
for (const int64_t& nOffsetStart : nOrderPosOffsets)
|
|
{
|
|
if (nOrderPos >= nOffsetStart)
|
|
++nOrderPosOff;
|
|
}
|
|
nOrderPos += nOrderPosOff;
|
|
nOrderPosNext = std::max(nOrderPosNext, nOrderPos + 1);
|
|
|
|
if (!nOrderPosOff)
|
|
continue;
|
|
|
|
// Since we're changing the order, write it back
|
|
if (pwtx)
|
|
{
|
|
if (!walletdb.WriteTx(*pwtx))
|
|
return DB_LOAD_FAIL;
|
|
}
|
|
else
|
|
if (!walletdb.WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
|
|
return DB_LOAD_FAIL;
|
|
}
|
|
}
|
|
walletdb.WriteOrderPosNext(nOrderPosNext);
|
|
|
|
return DB_LOAD_OK;
|
|
}
|
|
|
|
int64_t CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
|
|
{
|
|
AssertLockHeld(cs_wallet); // nOrderPosNext
|
|
int64_t nRet = nOrderPosNext++;
|
|
if (pwalletdb) {
|
|
pwalletdb->WriteOrderPosNext(nOrderPosNext);
|
|
} else {
|
|
CWalletDB(*dbw).WriteOrderPosNext(nOrderPosNext);
|
|
}
|
|
return nRet;
|
|
}
|
|
|
|
bool CWallet::AccountMove(std::string strFrom, std::string strTo, CAmount nAmount, std::string strComment)
|
|
{
|
|
CWalletDB walletdb(*dbw);
|
|
if (!walletdb.TxnBegin())
|
|
return false;
|
|
|
|
int64_t nNow = GetAdjustedTime();
|
|
|
|
// Debit
|
|
CAccountingEntry debit;
|
|
debit.nOrderPos = IncOrderPosNext(&walletdb);
|
|
debit.strAccount = strFrom;
|
|
debit.nCreditDebit = -nAmount;
|
|
debit.nTime = nNow;
|
|
debit.strOtherAccount = strTo;
|
|
debit.strComment = strComment;
|
|
AddAccountingEntry(debit, &walletdb);
|
|
|
|
// Credit
|
|
CAccountingEntry credit;
|
|
credit.nOrderPos = IncOrderPosNext(&walletdb);
|
|
credit.strAccount = strTo;
|
|
credit.nCreditDebit = nAmount;
|
|
credit.nTime = nNow;
|
|
credit.strOtherAccount = strFrom;
|
|
credit.strComment = strComment;
|
|
AddAccountingEntry(credit, &walletdb);
|
|
|
|
if (!walletdb.TxnCommit())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::GetAccountDestination(CTxDestination &dest, std::string strAccount, bool bForceNew)
|
|
{
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
CAccount account;
|
|
walletdb.ReadAccount(strAccount, account);
|
|
|
|
if (!bForceNew) {
|
|
if (!account.vchPubKey.IsValid())
|
|
bForceNew = true;
|
|
else {
|
|
// Check if the current key has been used (TODO: check other addresses with the same key)
|
|
CScript scriptPubKey = GetScriptForDestination(GetDestinationForKey(account.vchPubKey, g_address_type));
|
|
for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin();
|
|
it != mapWallet.end() && account.vchPubKey.IsValid();
|
|
++it)
|
|
for (const CTxOut& txout : (*it).second.tx->vout)
|
|
if (txout.scriptPubKey == scriptPubKey) {
|
|
bForceNew = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Generate a new key
|
|
if (bForceNew) {
|
|
if (!GetKeyFromPool(account.vchPubKey, false))
|
|
return false;
|
|
|
|
LearnRelatedScripts(account.vchPubKey, g_address_type);
|
|
dest = GetDestinationForKey(account.vchPubKey, g_address_type);
|
|
SetAddressBook(dest, strAccount, "receive");
|
|
walletdb.WriteAccount(strAccount, account);
|
|
} else {
|
|
dest = GetDestinationForKey(account.vchPubKey, g_address_type);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CWallet::MarkDirty()
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
for (std::pair<const uint256, CWalletTx>& item : mapWallet)
|
|
item.second.MarkDirty();
|
|
}
|
|
}
|
|
|
|
bool CWallet::MarkReplaced(const uint256& originalHash, const uint256& newHash)
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
auto mi = mapWallet.find(originalHash);
|
|
|
|
// There is a bug if MarkReplaced is not called on an existing wallet transaction.
|
|
assert(mi != mapWallet.end());
|
|
|
|
CWalletTx& wtx = (*mi).second;
|
|
|
|
// Ensure for now that we're not overwriting data
|
|
assert(wtx.mapValue.count("replaced_by_txid") == 0);
|
|
|
|
wtx.mapValue["replaced_by_txid"] = newHash.ToString();
|
|
|
|
CWalletDB walletdb(*dbw, "r+");
|
|
|
|
bool success = true;
|
|
if (!walletdb.WriteTx(wtx)) {
|
|
LogPrintf("%s: Updating walletdb tx %s failed", __func__, wtx.GetHash().ToString());
|
|
success = false;
|
|
}
|
|
|
|
NotifyTransactionChanged(this, originalHash, CT_UPDATED);
|
|
|
|
return success;
|
|
}
|
|
|
|
bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
CWalletDB walletdb(*dbw, "r+", fFlushOnClose);
|
|
|
|
uint256 hash = wtxIn.GetHash();
|
|
|
|
// Inserts only if not already there, returns tx inserted or tx found
|
|
std::pair<std::map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(std::make_pair(hash, wtxIn));
|
|
CWalletTx& wtx = (*ret.first).second;
|
|
wtx.BindWallet(this);
|
|
bool fInsertedNew = ret.second;
|
|
if (fInsertedNew)
|
|
{
|
|
wtx.nTimeReceived = GetAdjustedTime();
|
|
wtx.nOrderPos = IncOrderPosNext(&walletdb);
|
|
wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, nullptr)));
|
|
wtx.nTimeSmart = ComputeTimeSmart(wtx);
|
|
AddToSpends(hash);
|
|
}
|
|
|
|
bool fUpdated = false;
|
|
if (!fInsertedNew)
|
|
{
|
|
// Merge
|
|
if (!wtxIn.hashUnset() && wtxIn.hashBlock != wtx.hashBlock)
|
|
{
|
|
wtx.hashBlock = wtxIn.hashBlock;
|
|
fUpdated = true;
|
|
}
|
|
// If no longer abandoned, update
|
|
if (wtxIn.hashBlock.IsNull() && wtx.isAbandoned())
|
|
{
|
|
wtx.hashBlock = wtxIn.hashBlock;
|
|
fUpdated = true;
|
|
}
|
|
if (wtxIn.nIndex != -1 && (wtxIn.nIndex != wtx.nIndex))
|
|
{
|
|
wtx.nIndex = wtxIn.nIndex;
|
|
fUpdated = true;
|
|
}
|
|
if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
|
|
{
|
|
wtx.fFromMe = wtxIn.fFromMe;
|
|
fUpdated = true;
|
|
}
|
|
// If we have a witness-stripped version of this transaction, and we
|
|
// see a new version with a witness, then we must be upgrading a pre-segwit
|
|
// wallet. Store the new version of the transaction with the witness,
|
|
// as the stripped-version must be invalid.
|
|
// TODO: Store all versions of the transaction, instead of just one.
|
|
if (wtxIn.tx->HasWitness() && !wtx.tx->HasWitness()) {
|
|
wtx.SetTx(wtxIn.tx);
|
|
fUpdated = true;
|
|
}
|
|
}
|
|
|
|
//// debug print
|
|
LogPrintf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
|
|
|
|
// Write to disk
|
|
if (fInsertedNew || fUpdated)
|
|
if (!walletdb.WriteTx(wtx))
|
|
return false;
|
|
|
|
// Break debit/credit balance caches:
|
|
wtx.MarkDirty();
|
|
|
|
// Notify UI of new or updated transaction
|
|
NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
|
|
|
|
// notify an external script when a wallet transaction comes in or is updated
|
|
std::string strCmd = gArgs.GetArg("-walletnotify", "");
|
|
|
|
if (!strCmd.empty())
|
|
{
|
|
boost::replace_all(strCmd, "%s", wtxIn.GetHash().GetHex());
|
|
boost::thread t(runCommand, strCmd); // thread runs free
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::LoadToWallet(const CWalletTx& wtxIn)
|
|
{
|
|
uint256 hash = wtxIn.GetHash();
|
|
CWalletTx& wtx = mapWallet.emplace(hash, wtxIn).first->second;
|
|
wtx.BindWallet(this);
|
|
wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, nullptr)));
|
|
AddToSpends(hash);
|
|
for (const CTxIn& txin : wtx.tx->vin) {
|
|
auto it = mapWallet.find(txin.prevout.hash);
|
|
if (it != mapWallet.end()) {
|
|
CWalletTx& prevtx = it->second;
|
|
if (prevtx.nIndex == -1 && !prevtx.hashUnset()) {
|
|
MarkConflicted(prevtx.hashBlock, wtx.GetHash());
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Add a transaction to the wallet, or update it. pIndex and posInBlock should
|
|
* be set when the transaction was known to be included in a block. When
|
|
* pIndex == nullptr, then wallet state is not updated in AddToWallet, but
|
|
* notifications happen and cached balances are marked dirty.
|
|
*
|
|
* If fUpdate is true, existing transactions will be updated.
|
|
* TODO: One exception to this is that the abandoned state is cleared under the
|
|
* assumption that any further notification of a transaction that was considered
|
|
* abandoned is an indication that it is not safe to be considered abandoned.
|
|
* Abandoned state should probably be more carefully tracked via different
|
|
* posInBlock signals or by checking mempool presence when necessary.
|
|
*/
|
|
bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef& ptx, const CBlockIndex* pIndex, int posInBlock, bool fUpdate)
|
|
{
|
|
const CTransaction& tx = *ptx;
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
if (pIndex != nullptr) {
|
|
for (const CTxIn& txin : tx.vin) {
|
|
std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range = mapTxSpends.equal_range(txin.prevout);
|
|
while (range.first != range.second) {
|
|
if (range.first->second != tx.GetHash()) {
|
|
LogPrintf("Transaction %s (in block %s) conflicts with wallet transaction %s (both spend %s:%i)\n", tx.GetHash().ToString(), pIndex->GetBlockHash().ToString(), range.first->second.ToString(), range.first->first.hash.ToString(), range.first->first.n);
|
|
MarkConflicted(pIndex->GetBlockHash(), range.first->second);
|
|
}
|
|
range.first++;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool fExisted = mapWallet.count(tx.GetHash()) != 0;
|
|
if (fExisted && !fUpdate) return false;
|
|
if (fExisted || IsMine(tx) || IsFromMe(tx))
|
|
{
|
|
/* Check if any keys in the wallet keypool that were supposed to be unused
|
|
* have appeared in a new transaction. If so, remove those keys from the keypool.
|
|
* This can happen when restoring an old wallet backup that does not contain
|
|
* the mostly recently created transactions from newer versions of the wallet.
|
|
*/
|
|
|
|
// loop though all outputs
|
|
for (const CTxOut& txout: tx.vout) {
|
|
// extract addresses and check if they match with an unused keypool key
|
|
std::vector<CKeyID> vAffected;
|
|
CAffectedKeysVisitor(*this, vAffected).Process(txout.scriptPubKey);
|
|
for (const CKeyID &keyid : vAffected) {
|
|
std::map<CKeyID, int64_t>::const_iterator mi = m_pool_key_to_index.find(keyid);
|
|
if (mi != m_pool_key_to_index.end()) {
|
|
LogPrintf("%s: Detected a used keypool key, mark all keypool key up to this key as used\n", __func__);
|
|
MarkReserveKeysAsUsed(mi->second);
|
|
|
|
if (!TopUpKeyPool()) {
|
|
LogPrintf("%s: Topping up keypool failed (locked wallet)\n", __func__);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
CWalletTx wtx(this, ptx);
|
|
|
|
// Get merkle branch if transaction was found in a block
|
|
if (pIndex != nullptr)
|
|
wtx.SetMerkleBranch(pIndex, posInBlock);
|
|
|
|
return AddToWallet(wtx, false);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CWallet::TransactionCanBeAbandoned(const uint256& hashTx) const
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
const CWalletTx* wtx = GetWalletTx(hashTx);
|
|
return wtx && !wtx->isAbandoned() && wtx->GetDepthInMainChain() <= 0 && !wtx->InMempool();
|
|
}
|
|
|
|
bool CWallet::AbandonTransaction(const uint256& hashTx)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
CWalletDB walletdb(*dbw, "r+");
|
|
|
|
std::set<uint256> todo;
|
|
std::set<uint256> done;
|
|
|
|
// Can't mark abandoned if confirmed or in mempool
|
|
auto it = mapWallet.find(hashTx);
|
|
assert(it != mapWallet.end());
|
|
CWalletTx& origtx = it->second;
|
|
if (origtx.GetDepthInMainChain() > 0 || origtx.InMempool()) {
|
|
return false;
|
|
}
|
|
|
|
todo.insert(hashTx);
|
|
|
|
while (!todo.empty()) {
|
|
uint256 now = *todo.begin();
|
|
todo.erase(now);
|
|
done.insert(now);
|
|
auto it = mapWallet.find(now);
|
|
assert(it != mapWallet.end());
|
|
CWalletTx& wtx = it->second;
|
|
int currentconfirm = wtx.GetDepthInMainChain();
|
|
// If the orig tx was not in block, none of its spends can be
|
|
assert(currentconfirm <= 0);
|
|
// if (currentconfirm < 0) {Tx and spends are already conflicted, no need to abandon}
|
|
if (currentconfirm == 0 && !wtx.isAbandoned()) {
|
|
// If the orig tx was not in block/mempool, none of its spends can be in mempool
|
|
assert(!wtx.InMempool());
|
|
wtx.nIndex = -1;
|
|
wtx.setAbandoned();
|
|
wtx.MarkDirty();
|
|
walletdb.WriteTx(wtx);
|
|
NotifyTransactionChanged(this, wtx.GetHash(), CT_UPDATED);
|
|
// Iterate over all its outputs, and mark transactions in the wallet that spend them abandoned too
|
|
TxSpends::const_iterator iter = mapTxSpends.lower_bound(COutPoint(hashTx, 0));
|
|
while (iter != mapTxSpends.end() && iter->first.hash == now) {
|
|
if (!done.count(iter->second)) {
|
|
todo.insert(iter->second);
|
|
}
|
|
iter++;
|
|
}
|
|
// If a transaction changes 'conflicted' state, that changes the balance
|
|
// available of the outputs it spends. So force those to be recomputed
|
|
for (const CTxIn& txin : wtx.tx->vin)
|
|
{
|
|
auto it = mapWallet.find(txin.prevout.hash);
|
|
if (it != mapWallet.end()) {
|
|
it->second.MarkDirty();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CWallet::MarkConflicted(const uint256& hashBlock, const uint256& hashTx)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
int conflictconfirms = 0;
|
|
if (mapBlockIndex.count(hashBlock)) {
|
|
CBlockIndex* pindex = mapBlockIndex[hashBlock];
|
|
if (chainActive.Contains(pindex)) {
|
|
conflictconfirms = -(chainActive.Height() - pindex->nHeight + 1);
|
|
}
|
|
}
|
|
// If number of conflict confirms cannot be determined, this means
|
|
// that the block is still unknown or not yet part of the main chain,
|
|
// for example when loading the wallet during a reindex. Do nothing in that
|
|
// case.
|
|
if (conflictconfirms >= 0)
|
|
return;
|
|
|
|
// Do not flush the wallet here for performance reasons
|
|
CWalletDB walletdb(*dbw, "r+", false);
|
|
|
|
std::set<uint256> todo;
|
|
std::set<uint256> done;
|
|
|
|
todo.insert(hashTx);
|
|
|
|
while (!todo.empty()) {
|
|
uint256 now = *todo.begin();
|
|
todo.erase(now);
|
|
done.insert(now);
|
|
auto it = mapWallet.find(now);
|
|
assert(it != mapWallet.end());
|
|
CWalletTx& wtx = it->second;
|
|
int currentconfirm = wtx.GetDepthInMainChain();
|
|
if (conflictconfirms < currentconfirm) {
|
|
// Block is 'more conflicted' than current confirm; update.
|
|
// Mark transaction as conflicted with this block.
|
|
wtx.nIndex = -1;
|
|
wtx.hashBlock = hashBlock;
|
|
wtx.MarkDirty();
|
|
walletdb.WriteTx(wtx);
|
|
// Iterate over all its outputs, and mark transactions in the wallet that spend them conflicted too
|
|
TxSpends::const_iterator iter = mapTxSpends.lower_bound(COutPoint(now, 0));
|
|
while (iter != mapTxSpends.end() && iter->first.hash == now) {
|
|
if (!done.count(iter->second)) {
|
|
todo.insert(iter->second);
|
|
}
|
|
iter++;
|
|
}
|
|
// If a transaction changes 'conflicted' state, that changes the balance
|
|
// available of the outputs it spends. So force those to be recomputed
|
|
for (const CTxIn& txin : wtx.tx->vin) {
|
|
auto it = mapWallet.find(txin.prevout.hash);
|
|
if (it != mapWallet.end()) {
|
|
it->second.MarkDirty();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void CWallet::SyncTransaction(const CTransactionRef& ptx, const CBlockIndex *pindex, int posInBlock) {
|
|
const CTransaction& tx = *ptx;
|
|
|
|
if (!AddToWalletIfInvolvingMe(ptx, pindex, posInBlock, true))
|
|
return; // Not one of ours
|
|
|
|
// If a transaction changes 'conflicted' state, that changes the balance
|
|
// available of the outputs it spends. So force those to be
|
|
// recomputed, also:
|
|
for (const CTxIn& txin : tx.vin) {
|
|
auto it = mapWallet.find(txin.prevout.hash);
|
|
if (it != mapWallet.end()) {
|
|
it->second.MarkDirty();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CWallet::TransactionAddedToMempool(const CTransactionRef& ptx) {
|
|
LOCK2(cs_main, cs_wallet);
|
|
SyncTransaction(ptx);
|
|
|
|
auto it = mapWallet.find(ptx->GetHash());
|
|
if (it != mapWallet.end()) {
|
|
it->second.fInMempool = true;
|
|
}
|
|
}
|
|
|
|
void CWallet::TransactionRemovedFromMempool(const CTransactionRef &ptx) {
|
|
LOCK(cs_wallet);
|
|
auto it = mapWallet.find(ptx->GetHash());
|
|
if (it != mapWallet.end()) {
|
|
it->second.fInMempool = false;
|
|
}
|
|
}
|
|
|
|
void CWallet::BlockConnected(const std::shared_ptr<const CBlock>& pblock, const CBlockIndex *pindex, const std::vector<CTransactionRef>& vtxConflicted) {
|
|
LOCK2(cs_main, cs_wallet);
|
|
// TODO: Temporarily ensure that mempool removals are notified before
|
|
// connected transactions. This shouldn't matter, but the abandoned
|
|
// state of transactions in our wallet is currently cleared when we
|
|
// receive another notification and there is a race condition where
|
|
// notification of a connected conflict might cause an outside process
|
|
// to abandon a transaction and then have it inadvertently cleared by
|
|
// the notification that the conflicted transaction was evicted.
|
|
|
|
for (const CTransactionRef& ptx : vtxConflicted) {
|
|
SyncTransaction(ptx);
|
|
TransactionRemovedFromMempool(ptx);
|
|
}
|
|
for (size_t i = 0; i < pblock->vtx.size(); i++) {
|
|
SyncTransaction(pblock->vtx[i], pindex, i);
|
|
TransactionRemovedFromMempool(pblock->vtx[i]);
|
|
}
|
|
|
|
m_last_block_processed = pindex;
|
|
}
|
|
|
|
void CWallet::BlockDisconnected(const std::shared_ptr<const CBlock>& pblock) {
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
for (const CTransactionRef& ptx : pblock->vtx) {
|
|
SyncTransaction(ptx);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void CWallet::BlockUntilSyncedToCurrentChain() {
|
|
AssertLockNotHeld(cs_main);
|
|
AssertLockNotHeld(cs_wallet);
|
|
|
|
{
|
|
// Skip the queue-draining stuff if we know we're caught up with
|
|
// chainActive.Tip()...
|
|
// We could also take cs_wallet here, and call m_last_block_processed
|
|
// protected by cs_wallet instead of cs_main, but as long as we need
|
|
// cs_main here anyway, its easier to just call it cs_main-protected.
|
|
LOCK(cs_main);
|
|
const CBlockIndex* initialChainTip = chainActive.Tip();
|
|
|
|
if (m_last_block_processed->GetAncestor(initialChainTip->nHeight) == initialChainTip) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// ...otherwise put a callback in the validation interface queue and wait
|
|
// for the queue to drain enough to execute it (indicating we are caught up
|
|
// at least with the time we entered this function).
|
|
SyncWithValidationInterfaceQueue();
|
|
}
|
|
|
|
|
|
isminetype CWallet::IsMine(const CTxIn &txin) const
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
|
|
if (mi != mapWallet.end())
|
|
{
|
|
const CWalletTx& prev = (*mi).second;
|
|
if (txin.prevout.n < prev.tx->vout.size())
|
|
return IsMine(prev.tx->vout[txin.prevout.n]);
|
|
}
|
|
}
|
|
return ISMINE_NO;
|
|
}
|
|
|
|
// Note that this function doesn't distinguish between a 0-valued input,
|
|
// and a not-"is mine" (according to the filter) input.
|
|
CAmount CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) const
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
|
|
if (mi != mapWallet.end())
|
|
{
|
|
const CWalletTx& prev = (*mi).second;
|
|
if (txin.prevout.n < prev.tx->vout.size())
|
|
if (IsMine(prev.tx->vout[txin.prevout.n]) & filter)
|
|
return prev.tx->vout[txin.prevout.n].nValue;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
isminetype CWallet::IsMine(const CTxOut& txout) const
|
|
{
|
|
return ::IsMine(*this, txout.scriptPubKey);
|
|
}
|
|
|
|
CAmount CWallet::GetCredit(const CTxOut& txout, const isminefilter& filter) const
|
|
{
|
|
if (!MoneyRange(txout.nValue))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
return ((IsMine(txout) & filter) ? txout.nValue : 0);
|
|
}
|
|
|
|
bool CWallet::IsChange(const CTxOut& txout) const
|
|
{
|
|
// TODO: fix handling of 'change' outputs. The assumption is that any
|
|
// payment to a script that is ours, but is not in the address book
|
|
// is change. That assumption is likely to break when we implement multisignature
|
|
// wallets that return change back into a multi-signature-protected address;
|
|
// a better way of identifying which outputs are 'the send' and which are
|
|
// 'the change' will need to be implemented (maybe extend CWalletTx to remember
|
|
// which output, if any, was change).
|
|
if (::IsMine(*this, txout.scriptPubKey))
|
|
{
|
|
CTxDestination address;
|
|
if (!ExtractDestination(txout.scriptPubKey, address))
|
|
return true;
|
|
|
|
LOCK(cs_wallet);
|
|
if (!mapAddressBook.count(address))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CAmount CWallet::GetChange(const CTxOut& txout) const
|
|
{
|
|
if (!MoneyRange(txout.nValue))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
return (IsChange(txout) ? txout.nValue : 0);
|
|
}
|
|
|
|
bool CWallet::IsMine(const CTransaction& tx) const
|
|
{
|
|
for (const CTxOut& txout : tx.vout)
|
|
if (IsMine(txout))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
bool CWallet::IsFromMe(const CTransaction& tx) const
|
|
{
|
|
return (GetDebit(tx, ISMINE_ALL) > 0);
|
|
}
|
|
|
|
CAmount CWallet::GetDebit(const CTransaction& tx, const isminefilter& filter) const
|
|
{
|
|
CAmount nDebit = 0;
|
|
for (const CTxIn& txin : tx.vin)
|
|
{
|
|
nDebit += GetDebit(txin, filter);
|
|
if (!MoneyRange(nDebit))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
}
|
|
return nDebit;
|
|
}
|
|
|
|
bool CWallet::IsAllFromMe(const CTransaction& tx, const isminefilter& filter) const
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
for (const CTxIn& txin : tx.vin)
|
|
{
|
|
auto mi = mapWallet.find(txin.prevout.hash);
|
|
if (mi == mapWallet.end())
|
|
return false; // any unknown inputs can't be from us
|
|
|
|
const CWalletTx& prev = (*mi).second;
|
|
|
|
if (txin.prevout.n >= prev.tx->vout.size())
|
|
return false; // invalid input!
|
|
|
|
if (!(IsMine(prev.tx->vout[txin.prevout.n]) & filter))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
CAmount CWallet::GetCredit(const CTransaction& tx, const isminefilter& filter) const
|
|
{
|
|
CAmount nCredit = 0;
|
|
for (const CTxOut& txout : tx.vout)
|
|
{
|
|
nCredit += GetCredit(txout, filter);
|
|
if (!MoneyRange(nCredit))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
}
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWallet::GetChange(const CTransaction& tx) const
|
|
{
|
|
CAmount nChange = 0;
|
|
for (const CTxOut& txout : tx.vout)
|
|
{
|
|
nChange += GetChange(txout);
|
|
if (!MoneyRange(nChange))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
}
|
|
return nChange;
|
|
}
|
|
|
|
CPubKey CWallet::GenerateNewHDMasterKey()
|
|
{
|
|
CKey key;
|
|
key.MakeNewKey(true);
|
|
|
|
int64_t nCreationTime = GetTime();
|
|
CKeyMetadata metadata(nCreationTime);
|
|
|
|
// calculate the pubkey
|
|
CPubKey pubkey = key.GetPubKey();
|
|
assert(key.VerifyPubKey(pubkey));
|
|
|
|
// set the hd keypath to "m" -> Master, refers the masterkeyid to itself
|
|
metadata.hdKeypath = "m";
|
|
metadata.hdMasterKeyID = pubkey.GetID();
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
// mem store the metadata
|
|
mapKeyMetadata[pubkey.GetID()] = metadata;
|
|
|
|
// write the key&metadata to the database
|
|
if (!AddKeyPubKey(key, pubkey))
|
|
throw std::runtime_error(std::string(__func__) + ": AddKeyPubKey failed");
|
|
}
|
|
|
|
return pubkey;
|
|
}
|
|
|
|
bool CWallet::SetHDMasterKey(const CPubKey& pubkey)
|
|
{
|
|
LOCK(cs_wallet);
|
|
// store the keyid (hash160) together with
|
|
// the child index counter in the database
|
|
// as a hdchain object
|
|
CHDChain newHdChain;
|
|
newHdChain.nVersion = CanSupportFeature(FEATURE_HD_SPLIT) ? CHDChain::VERSION_HD_CHAIN_SPLIT : CHDChain::VERSION_HD_BASE;
|
|
newHdChain.masterKeyID = pubkey.GetID();
|
|
SetHDChain(newHdChain, false);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::SetHDChain(const CHDChain& chain, bool memonly)
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (!memonly && !CWalletDB(*dbw).WriteHDChain(chain))
|
|
throw std::runtime_error(std::string(__func__) + ": writing chain failed");
|
|
|
|
hdChain = chain;
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::IsHDEnabled() const
|
|
{
|
|
return !hdChain.masterKeyID.IsNull();
|
|
}
|
|
|
|
int64_t CWalletTx::GetTxTime() const
|
|
{
|
|
int64_t n = nTimeSmart;
|
|
return n ? n : nTimeReceived;
|
|
}
|
|
|
|
int CWalletTx::GetRequestCount() const
|
|
{
|
|
// Returns -1 if it wasn't being tracked
|
|
int nRequests = -1;
|
|
{
|
|
LOCK(pwallet->cs_wallet);
|
|
if (IsCoinBase())
|
|
{
|
|
// Generated block
|
|
if (!hashUnset())
|
|
{
|
|
std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
|
|
if (mi != pwallet->mapRequestCount.end())
|
|
nRequests = (*mi).second;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Did anyone request this transaction?
|
|
std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
|
|
if (mi != pwallet->mapRequestCount.end())
|
|
{
|
|
nRequests = (*mi).second;
|
|
|
|
// How about the block it's in?
|
|
if (nRequests == 0 && !hashUnset())
|
|
{
|
|
std::map<uint256, int>::const_iterator _mi = pwallet->mapRequestCount.find(hashBlock);
|
|
if (_mi != pwallet->mapRequestCount.end())
|
|
nRequests = (*_mi).second;
|
|
else
|
|
nRequests = 1; // If it's in someone else's block it must have got out
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nRequests;
|
|
}
|
|
|
|
void CWalletTx::GetAmounts(std::list<COutputEntry>& listReceived,
|
|
std::list<COutputEntry>& listSent, CAmount& nFee, std::string& strSentAccount, const isminefilter& filter) const
|
|
{
|
|
nFee = 0;
|
|
listReceived.clear();
|
|
listSent.clear();
|
|
strSentAccount = strFromAccount;
|
|
|
|
// Compute fee:
|
|
CAmount nDebit = GetDebit(filter);
|
|
if (nDebit > 0) // debit>0 means we signed/sent this transaction
|
|
{
|
|
CAmount nValueOut = tx->GetValueOut();
|
|
nFee = nDebit - nValueOut;
|
|
}
|
|
|
|
// Sent/received.
|
|
for (unsigned int i = 0; i < tx->vout.size(); ++i)
|
|
{
|
|
const CTxOut& txout = tx->vout[i];
|
|
isminetype fIsMine = pwallet->IsMine(txout);
|
|
// Only need to handle txouts if AT LEAST one of these is true:
|
|
// 1) they debit from us (sent)
|
|
// 2) the output is to us (received)
|
|
if (nDebit > 0)
|
|
{
|
|
// Don't report 'change' txouts
|
|
if (pwallet->IsChange(txout))
|
|
continue;
|
|
}
|
|
else if (!(fIsMine & filter))
|
|
continue;
|
|
|
|
// In either case, we need to get the destination address
|
|
CTxDestination address;
|
|
|
|
if (!ExtractDestination(txout.scriptPubKey, address) && !txout.scriptPubKey.IsUnspendable())
|
|
{
|
|
LogPrintf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
|
|
this->GetHash().ToString());
|
|
address = CNoDestination();
|
|
}
|
|
|
|
COutputEntry output = {address, txout.nValue, (int)i};
|
|
|
|
// If we are debited by the transaction, add the output as a "sent" entry
|
|
if (nDebit > 0)
|
|
listSent.push_back(output);
|
|
|
|
// If we are receiving the output, add it as a "received" entry
|
|
if (fIsMine & filter)
|
|
listReceived.push_back(output);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Scan active chain for relevant transactions after importing keys. This should
|
|
* be called whenever new keys are added to the wallet, with the oldest key
|
|
* creation time.
|
|
*
|
|
* @return Earliest timestamp that could be successfully scanned from. Timestamp
|
|
* returned will be higher than startTime if relevant blocks could not be read.
|
|
*/
|
|
int64_t CWallet::RescanFromTime(int64_t startTime, const WalletRescanReserver& reserver, bool update)
|
|
{
|
|
// Find starting block. May be null if nCreateTime is greater than the
|
|
// highest blockchain timestamp, in which case there is nothing that needs
|
|
// to be scanned.
|
|
CBlockIndex* startBlock = nullptr;
|
|
{
|
|
LOCK(cs_main);
|
|
startBlock = chainActive.FindEarliestAtLeast(startTime - TIMESTAMP_WINDOW);
|
|
LogPrintf("%s: Rescanning last %i blocks\n", __func__, startBlock ? chainActive.Height() - startBlock->nHeight + 1 : 0);
|
|
}
|
|
|
|
if (startBlock) {
|
|
const CBlockIndex* const failedBlock = ScanForWalletTransactions(startBlock, nullptr, reserver, update);
|
|
if (failedBlock) {
|
|
return failedBlock->GetBlockTimeMax() + TIMESTAMP_WINDOW + 1;
|
|
}
|
|
}
|
|
return startTime;
|
|
}
|
|
|
|
/**
|
|
* Scan the block chain (starting in pindexStart) for transactions
|
|
* from or to us. If fUpdate is true, found transactions that already
|
|
* exist in the wallet will be updated.
|
|
*
|
|
* Returns null if scan was successful. Otherwise, if a complete rescan was not
|
|
* possible (due to pruning or corruption), returns pointer to the most recent
|
|
* block that could not be scanned.
|
|
*
|
|
* If pindexStop is not a nullptr, the scan will stop at the block-index
|
|
* defined by pindexStop
|
|
*
|
|
* Caller needs to make sure pindexStop (and the optional pindexStart) are on
|
|
* the main chain after to the addition of any new keys you want to detect
|
|
* transactions for.
|
|
*/
|
|
CBlockIndex* CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, CBlockIndex* pindexStop, const WalletRescanReserver &reserver, bool fUpdate)
|
|
{
|
|
int64_t nNow = GetTime();
|
|
const CChainParams& chainParams = Params();
|
|
|
|
assert(reserver.isReserved());
|
|
if (pindexStop) {
|
|
assert(pindexStop->nHeight >= pindexStart->nHeight);
|
|
}
|
|
|
|
CBlockIndex* pindex = pindexStart;
|
|
CBlockIndex* ret = nullptr;
|
|
{
|
|
fAbortRescan = false;
|
|
ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
|
|
CBlockIndex* tip = nullptr;
|
|
double dProgressStart;
|
|
double dProgressTip;
|
|
{
|
|
LOCK(cs_main);
|
|
tip = chainActive.Tip();
|
|
dProgressStart = GuessVerificationProgress(chainParams.TxData(), pindex);
|
|
dProgressTip = GuessVerificationProgress(chainParams.TxData(), tip);
|
|
}
|
|
while (pindex && !fAbortRescan)
|
|
{
|
|
if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0) {
|
|
double gvp = 0;
|
|
{
|
|
LOCK(cs_main);
|
|
gvp = GuessVerificationProgress(chainParams.TxData(), pindex);
|
|
}
|
|
ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((gvp - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
|
|
}
|
|
if (GetTime() >= nNow + 60) {
|
|
nNow = GetTime();
|
|
LOCK(cs_main);
|
|
LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex));
|
|
}
|
|
|
|
CBlock block;
|
|
if (ReadBlockFromDisk(block, pindex, Params().GetConsensus())) {
|
|
LOCK2(cs_main, cs_wallet);
|
|
if (pindex && !chainActive.Contains(pindex)) {
|
|
// Abort scan if current block is no longer active, to prevent
|
|
// marking transactions as coming from the wrong block.
|
|
ret = pindex;
|
|
break;
|
|
}
|
|
for (size_t posInBlock = 0; posInBlock < block.vtx.size(); ++posInBlock) {
|
|
AddToWalletIfInvolvingMe(block.vtx[posInBlock], pindex, posInBlock, fUpdate);
|
|
}
|
|
} else {
|
|
ret = pindex;
|
|
}
|
|
if (pindex == pindexStop) {
|
|
break;
|
|
}
|
|
{
|
|
LOCK(cs_main);
|
|
pindex = chainActive.Next(pindex);
|
|
if (tip != chainActive.Tip()) {
|
|
tip = chainActive.Tip();
|
|
// in case the tip has changed, update progress max
|
|
dProgressTip = GuessVerificationProgress(chainParams.TxData(), tip);
|
|
}
|
|
}
|
|
}
|
|
if (pindex && fAbortRescan) {
|
|
LogPrintf("Rescan aborted at block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex));
|
|
}
|
|
ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void CWallet::ReacceptWalletTransactions()
|
|
{
|
|
// If transactions aren't being broadcasted, don't let them into local mempool either
|
|
if (!fBroadcastTransactions)
|
|
return;
|
|
LOCK2(cs_main, cs_wallet);
|
|
std::map<int64_t, CWalletTx*> mapSorted;
|
|
|
|
// Sort pending wallet transactions based on their initial wallet insertion order
|
|
for (std::pair<const uint256, CWalletTx>& item : mapWallet)
|
|
{
|
|
const uint256& wtxid = item.first;
|
|
CWalletTx& wtx = item.second;
|
|
assert(wtx.GetHash() == wtxid);
|
|
|
|
int nDepth = wtx.GetDepthInMainChain();
|
|
|
|
if (!wtx.IsCoinBase() && (nDepth == 0 && !wtx.isAbandoned())) {
|
|
mapSorted.insert(std::make_pair(wtx.nOrderPos, &wtx));
|
|
}
|
|
}
|
|
|
|
// Try to add wallet transactions to memory pool
|
|
for (std::pair<const int64_t, CWalletTx*>& item : mapSorted) {
|
|
CWalletTx& wtx = *(item.second);
|
|
CValidationState state;
|
|
wtx.AcceptToMemoryPool(maxTxFee, state);
|
|
}
|
|
}
|
|
|
|
bool CWalletTx::RelayWalletTransaction(CConnman* connman)
|
|
{
|
|
assert(pwallet->GetBroadcastTransactions());
|
|
if (!IsCoinBase() && !isAbandoned() && GetDepthInMainChain() == 0)
|
|
{
|
|
CValidationState state;
|
|
/* GetDepthInMainChain already catches known conflicts. */
|
|
if (InMempool() || AcceptToMemoryPool(maxTxFee, state)) {
|
|
LogPrintf("Relaying wtx %s\n", GetHash().ToString());
|
|
if (connman) {
|
|
CInv inv(MSG_TX, GetHash());
|
|
connman->ForEachNode([&inv](CNode* pnode)
|
|
{
|
|
pnode->PushInventory(inv);
|
|
});
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::set<uint256> CWalletTx::GetConflicts() const
|
|
{
|
|
std::set<uint256> result;
|
|
if (pwallet != nullptr)
|
|
{
|
|
uint256 myHash = GetHash();
|
|
result = pwallet->GetConflicts(myHash);
|
|
result.erase(myHash);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
CAmount CWalletTx::GetDebit(const isminefilter& filter) const
|
|
{
|
|
if (tx->vin.empty())
|
|
return 0;
|
|
|
|
CAmount debit = 0;
|
|
if(filter & ISMINE_SPENDABLE)
|
|
{
|
|
if (fDebitCached)
|
|
debit += nDebitCached;
|
|
else
|
|
{
|
|
nDebitCached = pwallet->GetDebit(*tx, ISMINE_SPENDABLE);
|
|
fDebitCached = true;
|
|
debit += nDebitCached;
|
|
}
|
|
}
|
|
if(filter & ISMINE_WATCH_ONLY)
|
|
{
|
|
if(fWatchDebitCached)
|
|
debit += nWatchDebitCached;
|
|
else
|
|
{
|
|
nWatchDebitCached = pwallet->GetDebit(*tx, ISMINE_WATCH_ONLY);
|
|
fWatchDebitCached = true;
|
|
debit += nWatchDebitCached;
|
|
}
|
|
}
|
|
return debit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetCredit(const isminefilter& filter) const
|
|
{
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
CAmount credit = 0;
|
|
if (filter & ISMINE_SPENDABLE)
|
|
{
|
|
// GetBalance can assume transactions in mapWallet won't change
|
|
if (fCreditCached)
|
|
credit += nCreditCached;
|
|
else
|
|
{
|
|
nCreditCached = pwallet->GetCredit(*tx, ISMINE_SPENDABLE);
|
|
fCreditCached = true;
|
|
credit += nCreditCached;
|
|
}
|
|
}
|
|
if (filter & ISMINE_WATCH_ONLY)
|
|
{
|
|
if (fWatchCreditCached)
|
|
credit += nWatchCreditCached;
|
|
else
|
|
{
|
|
nWatchCreditCached = pwallet->GetCredit(*tx, ISMINE_WATCH_ONLY);
|
|
fWatchCreditCached = true;
|
|
credit += nWatchCreditCached;
|
|
}
|
|
}
|
|
return credit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetImmatureCredit(bool fUseCache) const
|
|
{
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
|
|
{
|
|
if (fUseCache && fImmatureCreditCached)
|
|
return nImmatureCreditCached;
|
|
nImmatureCreditCached = pwallet->GetCredit(*tx, ISMINE_SPENDABLE);
|
|
fImmatureCreditCached = true;
|
|
return nImmatureCreditCached;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
CAmount CWalletTx::GetAvailableCredit(bool fUseCache) const
|
|
{
|
|
if (pwallet == nullptr)
|
|
return 0;
|
|
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
if (fUseCache && fAvailableCreditCached)
|
|
return nAvailableCreditCached;
|
|
|
|
CAmount nCredit = 0;
|
|
uint256 hashTx = GetHash();
|
|
for (unsigned int i = 0; i < tx->vout.size(); i++)
|
|
{
|
|
if (!pwallet->IsSpent(hashTx, i))
|
|
{
|
|
const CTxOut &txout = tx->vout[i];
|
|
nCredit += pwallet->GetCredit(txout, ISMINE_SPENDABLE);
|
|
if (!MoneyRange(nCredit))
|
|
throw std::runtime_error(std::string(__func__) + " : value out of range");
|
|
}
|
|
}
|
|
|
|
nAvailableCreditCached = nCredit;
|
|
fAvailableCreditCached = true;
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetImmatureWatchOnlyCredit(const bool fUseCache) const
|
|
{
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
|
|
{
|
|
if (fUseCache && fImmatureWatchCreditCached)
|
|
return nImmatureWatchCreditCached;
|
|
nImmatureWatchCreditCached = pwallet->GetCredit(*tx, ISMINE_WATCH_ONLY);
|
|
fImmatureWatchCreditCached = true;
|
|
return nImmatureWatchCreditCached;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
CAmount CWalletTx::GetAvailableWatchOnlyCredit(const bool fUseCache) const
|
|
{
|
|
if (pwallet == nullptr)
|
|
return 0;
|
|
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
if (fUseCache && fAvailableWatchCreditCached)
|
|
return nAvailableWatchCreditCached;
|
|
|
|
CAmount nCredit = 0;
|
|
for (unsigned int i = 0; i < tx->vout.size(); i++)
|
|
{
|
|
if (!pwallet->IsSpent(GetHash(), i))
|
|
{
|
|
const CTxOut &txout = tx->vout[i];
|
|
nCredit += pwallet->GetCredit(txout, ISMINE_WATCH_ONLY);
|
|
if (!MoneyRange(nCredit))
|
|
throw std::runtime_error(std::string(__func__) + ": value out of range");
|
|
}
|
|
}
|
|
|
|
nAvailableWatchCreditCached = nCredit;
|
|
fAvailableWatchCreditCached = true;
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetChange() const
|
|
{
|
|
if (fChangeCached)
|
|
return nChangeCached;
|
|
nChangeCached = pwallet->GetChange(*tx);
|
|
fChangeCached = true;
|
|
return nChangeCached;
|
|
}
|
|
|
|
bool CWalletTx::InMempool() const
|
|
{
|
|
return fInMempool;
|
|
}
|
|
|
|
bool CWalletTx::IsTrusted() const
|
|
{
|
|
// Quick answer in most cases
|
|
if (!CheckFinalTx(*tx))
|
|
return false;
|
|
int nDepth = GetDepthInMainChain();
|
|
if (nDepth >= 1)
|
|
return true;
|
|
if (nDepth < 0)
|
|
return false;
|
|
if (!bSpendZeroConfChange || !IsFromMe(ISMINE_ALL)) // using wtx's cached debit
|
|
return false;
|
|
|
|
// Don't trust unconfirmed transactions from us unless they are in the mempool.
|
|
if (!InMempool())
|
|
return false;
|
|
|
|
// Trusted if all inputs are from us and are in the mempool:
|
|
for (const CTxIn& txin : tx->vin)
|
|
{
|
|
// Transactions not sent by us: not trusted
|
|
const CWalletTx* parent = pwallet->GetWalletTx(txin.prevout.hash);
|
|
if (parent == nullptr)
|
|
return false;
|
|
const CTxOut& parentOut = parent->tx->vout[txin.prevout.n];
|
|
if (pwallet->IsMine(parentOut) != ISMINE_SPENDABLE)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CWalletTx::IsEquivalentTo(const CWalletTx& _tx) const
|
|
{
|
|
CMutableTransaction tx1 = *this->tx;
|
|
CMutableTransaction tx2 = *_tx.tx;
|
|
for (auto& txin : tx1.vin) txin.scriptSig = CScript();
|
|
for (auto& txin : tx2.vin) txin.scriptSig = CScript();
|
|
return CTransaction(tx1) == CTransaction(tx2);
|
|
}
|
|
|
|
std::vector<uint256> CWallet::ResendWalletTransactionsBefore(int64_t nTime, CConnman* connman)
|
|
{
|
|
std::vector<uint256> result;
|
|
|
|
LOCK(cs_wallet);
|
|
|
|
// Sort them in chronological order
|
|
std::multimap<unsigned int, CWalletTx*> mapSorted;
|
|
for (std::pair<const uint256, CWalletTx>& item : mapWallet)
|
|
{
|
|
CWalletTx& wtx = item.second;
|
|
// Don't rebroadcast if newer than nTime:
|
|
if (wtx.nTimeReceived > nTime)
|
|
continue;
|
|
mapSorted.insert(std::make_pair(wtx.nTimeReceived, &wtx));
|
|
}
|
|
for (std::pair<const unsigned int, CWalletTx*>& item : mapSorted)
|
|
{
|
|
CWalletTx& wtx = *item.second;
|
|
if (wtx.RelayWalletTransaction(connman))
|
|
result.push_back(wtx.GetHash());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void CWallet::ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman)
|
|
{
|
|
// Do this infrequently and randomly to avoid giving away
|
|
// that these are our transactions.
|
|
if (GetTime() < nNextResend || !fBroadcastTransactions)
|
|
return;
|
|
bool fFirst = (nNextResend == 0);
|
|
nNextResend = GetTime() + GetRand(30 * 60);
|
|
if (fFirst)
|
|
return;
|
|
|
|
// Only do it if there's been a new block since last time
|
|
if (nBestBlockTime < nLastResend)
|
|
return;
|
|
nLastResend = GetTime();
|
|
|
|
// Rebroadcast unconfirmed txes older than 5 minutes before the last
|
|
// block was found:
|
|
std::vector<uint256> relayed = ResendWalletTransactionsBefore(nBestBlockTime-5*60, connman);
|
|
if (!relayed.empty())
|
|
LogPrintf("%s: rebroadcast %u unconfirmed transactions\n", __func__, relayed.size());
|
|
}
|
|
|
|
/** @} */ // end of mapWallet
|
|
|
|
|
|
|
|
|
|
/** @defgroup Actions
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
|
|
CAmount CWallet::GetBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
if (pcoin->IsTrusted())
|
|
nTotal += pcoin->GetAvailableCredit();
|
|
}
|
|
}
|
|
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetUnconfirmedBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
if (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0 && pcoin->InMempool())
|
|
nTotal += pcoin->GetAvailableCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetImmatureBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
nTotal += pcoin->GetImmatureCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
if (pcoin->IsTrusted())
|
|
nTotal += pcoin->GetAvailableWatchOnlyCredit();
|
|
}
|
|
}
|
|
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetUnconfirmedWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
if (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0 && pcoin->InMempool())
|
|
nTotal += pcoin->GetAvailableWatchOnlyCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetImmatureWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const CWalletTx* pcoin = &entry.second;
|
|
nTotal += pcoin->GetImmatureWatchOnlyCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
// Calculate total balance in a different way from GetBalance. The biggest
|
|
// difference is that GetBalance sums up all unspent TxOuts paying to the
|
|
// wallet, while this sums up both spent and unspent TxOuts paying to the
|
|
// wallet, and then subtracts the values of TxIns spending from the wallet. This
|
|
// also has fewer restrictions on which unconfirmed transactions are considered
|
|
// trusted.
|
|
CAmount CWallet::GetLegacyBalance(const isminefilter& filter, int minDepth, const std::string* account) const
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
CAmount balance = 0;
|
|
for (const auto& entry : mapWallet) {
|
|
const CWalletTx& wtx = entry.second;
|
|
const int depth = wtx.GetDepthInMainChain();
|
|
if (depth < 0 || !CheckFinalTx(*wtx.tx) || wtx.GetBlocksToMaturity() > 0) {
|
|
continue;
|
|
}
|
|
|
|
// Loop through tx outputs and add incoming payments. For outgoing txs,
|
|
// treat change outputs specially, as part of the amount debited.
|
|
CAmount debit = wtx.GetDebit(filter);
|
|
const bool outgoing = debit > 0;
|
|
for (const CTxOut& out : wtx.tx->vout) {
|
|
if (outgoing && IsChange(out)) {
|
|
debit -= out.nValue;
|
|
} else if (IsMine(out) & filter && depth >= minDepth && (!account || *account == GetAccountName(out.scriptPubKey))) {
|
|
balance += out.nValue;
|
|
}
|
|
}
|
|
|
|
// For outgoing txs, subtract amount debited.
|
|
if (outgoing && (!account || *account == wtx.strFromAccount)) {
|
|
balance -= debit;
|
|
}
|
|
}
|
|
|
|
if (account) {
|
|
balance += CWalletDB(*dbw).GetAccountCreditDebit(*account);
|
|
}
|
|
|
|
return balance;
|
|
}
|
|
|
|
CAmount CWallet::GetAvailableBalance(const CCoinControl* coinControl) const
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
CAmount balance = 0;
|
|
std::vector<COutput> vCoins;
|
|
AvailableCoins(vCoins, true, coinControl);
|
|
for (const COutput& out : vCoins) {
|
|
if (out.fSpendable) {
|
|
balance += out.tx->tx->vout[out.i].nValue;
|
|
}
|
|
}
|
|
return balance;
|
|
}
|
|
|
|
void CWallet::AvailableCoins(std::vector<COutput> &vCoins, bool fOnlySafe, const CCoinControl *coinControl, const CAmount &nMinimumAmount, const CAmount &nMaximumAmount, const CAmount &nMinimumSumAmount, const uint64_t nMaximumCount, const int nMinDepth, const int nMaxDepth) const
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
vCoins.clear();
|
|
|
|
{
|
|
CAmount nTotal = 0;
|
|
|
|
for (const auto& entry : mapWallet)
|
|
{
|
|
const uint256& wtxid = entry.first;
|
|
const CWalletTx* pcoin = &entry.second;
|
|
|
|
if (!CheckFinalTx(*pcoin->tx))
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
int nDepth = pcoin->GetDepthInMainChain();
|
|
if (nDepth < 0)
|
|
continue;
|
|
|
|
// We should not consider coins which aren't at least in our mempool
|
|
// It's possible for these to be conflicted via ancestors which we may never be able to detect
|
|
if (nDepth == 0 && !pcoin->InMempool())
|
|
continue;
|
|
|
|
bool safeTx = pcoin->IsTrusted();
|
|
|
|
// We should not consider coins from transactions that are replacing
|
|
// other transactions.
|
|
//
|
|
// Example: There is a transaction A which is replaced by bumpfee
|
|
// transaction B. In this case, we want to prevent creation of
|
|
// a transaction B' which spends an output of B.
|
|
//
|
|
// Reason: If transaction A were initially confirmed, transactions B
|
|
// and B' would no longer be valid, so the user would have to create
|
|
// a new transaction C to replace B'. However, in the case of a
|
|
// one-block reorg, transactions B' and C might BOTH be accepted,
|
|
// when the user only wanted one of them. Specifically, there could
|
|
// be a 1-block reorg away from the chain where transactions A and C
|
|
// were accepted to another chain where B, B', and C were all
|
|
// accepted.
|
|
if (nDepth == 0 && pcoin->mapValue.count("replaces_txid")) {
|
|
safeTx = false;
|
|
}
|
|
|
|
// Similarly, we should not consider coins from transactions that
|
|
// have been replaced. In the example above, we would want to prevent
|
|
// creation of a transaction A' spending an output of A, because if
|
|
// transaction B were initially confirmed, conflicting with A and
|
|
// A', we wouldn't want to the user to create a transaction D
|
|
// intending to replace A', but potentially resulting in a scenario
|
|
// where A, A', and D could all be accepted (instead of just B and
|
|
// D, or just A and A' like the user would want).
|
|
if (nDepth == 0 && pcoin->mapValue.count("replaced_by_txid")) {
|
|
safeTx = false;
|
|
}
|
|
|
|
if (fOnlySafe && !safeTx) {
|
|
continue;
|
|
}
|
|
|
|
if (nDepth < nMinDepth || nDepth > nMaxDepth)
|
|
continue;
|
|
|
|
for (unsigned int i = 0; i < pcoin->tx->vout.size(); i++) {
|
|
if (pcoin->tx->vout[i].nValue < nMinimumAmount || pcoin->tx->vout[i].nValue > nMaximumAmount)
|
|
continue;
|
|
|
|
if (coinControl && coinControl->HasSelected() && !coinControl->fAllowOtherInputs && !coinControl->IsSelected(COutPoint(entry.first, i)))
|
|
continue;
|
|
|
|
if (IsLockedCoin(entry.first, i))
|
|
continue;
|
|
|
|
if (IsSpent(wtxid, i))
|
|
continue;
|
|
|
|
isminetype mine = IsMine(pcoin->tx->vout[i]);
|
|
|
|
if (mine == ISMINE_NO) {
|
|
continue;
|
|
}
|
|
|
|
bool fSpendableIn = ((mine & ISMINE_SPENDABLE) != ISMINE_NO) || (coinControl && coinControl->fAllowWatchOnly && (mine & ISMINE_WATCH_SOLVABLE) != ISMINE_NO);
|
|
bool fSolvableIn = (mine & (ISMINE_SPENDABLE | ISMINE_WATCH_SOLVABLE)) != ISMINE_NO;
|
|
|
|
vCoins.push_back(COutput(pcoin, i, nDepth, fSpendableIn, fSolvableIn, safeTx));
|
|
|
|
// Checks the sum amount of all UTXO's.
|
|
if (nMinimumSumAmount != MAX_MONEY) {
|
|
nTotal += pcoin->tx->vout[i].nValue;
|
|
|
|
if (nTotal >= nMinimumSumAmount) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Checks the maximum number of UTXO's.
|
|
if (nMaximumCount > 0 && vCoins.size() >= nMaximumCount) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
std::map<CTxDestination, std::vector<COutput>> CWallet::ListCoins() const
|
|
{
|
|
// TODO: Add AssertLockHeld(cs_wallet) here.
|
|
//
|
|
// Because the return value from this function contains pointers to
|
|
// CWalletTx objects, callers to this function really should acquire the
|
|
// cs_wallet lock before calling it. However, the current caller doesn't
|
|
// acquire this lock yet. There was an attempt to add the missing lock in
|
|
// https://github.com/bitcoin/bitcoin/pull/10340, but that change has been
|
|
// postponed until after https://github.com/bitcoin/bitcoin/pull/10244 to
|
|
// avoid adding some extra complexity to the Qt code.
|
|
|
|
std::map<CTxDestination, std::vector<COutput>> result;
|
|
std::vector<COutput> availableCoins;
|
|
|
|
LOCK2(cs_main, cs_wallet);
|
|
AvailableCoins(availableCoins);
|
|
|
|
for (auto& coin : availableCoins) {
|
|
CTxDestination address;
|
|
if (coin.fSpendable &&
|
|
ExtractDestination(FindNonChangeParentOutput(*coin.tx->tx, coin.i).scriptPubKey, address)) {
|
|
result[address].emplace_back(std::move(coin));
|
|
}
|
|
}
|
|
|
|
std::vector<COutPoint> lockedCoins;
|
|
ListLockedCoins(lockedCoins);
|
|
for (const auto& output : lockedCoins) {
|
|
auto it = mapWallet.find(output.hash);
|
|
if (it != mapWallet.end()) {
|
|
int depth = it->second.GetDepthInMainChain();
|
|
if (depth >= 0 && output.n < it->second.tx->vout.size() &&
|
|
IsMine(it->second.tx->vout[output.n]) == ISMINE_SPENDABLE) {
|
|
CTxDestination address;
|
|
if (ExtractDestination(FindNonChangeParentOutput(*it->second.tx, output.n).scriptPubKey, address)) {
|
|
result[address].emplace_back(
|
|
&it->second, output.n, depth, true /* spendable */, true /* solvable */, false /* safe */);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
const CTxOut& CWallet::FindNonChangeParentOutput(const CTransaction& tx, int output) const
|
|
{
|
|
const CTransaction* ptx = &tx;
|
|
int n = output;
|
|
while (IsChange(ptx->vout[n]) && ptx->vin.size() > 0) {
|
|
const COutPoint& prevout = ptx->vin[0].prevout;
|
|
auto it = mapWallet.find(prevout.hash);
|
|
if (it == mapWallet.end() || it->second.tx->vout.size() <= prevout.n ||
|
|
!IsMine(it->second.tx->vout[prevout.n])) {
|
|
break;
|
|
}
|
|
ptx = it->second.tx.get();
|
|
n = prevout.n;
|
|
}
|
|
return ptx->vout[n];
|
|
}
|
|
|
|
static void ApproximateBestSubset(const std::vector<CInputCoin>& vValue, const CAmount& nTotalLower, const CAmount& nTargetValue,
|
|
std::vector<char>& vfBest, CAmount& nBest, int iterations = 1000)
|
|
{
|
|
std::vector<char> vfIncluded;
|
|
|
|
vfBest.assign(vValue.size(), true);
|
|
nBest = nTotalLower;
|
|
|
|
FastRandomContext insecure_rand;
|
|
|
|
for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++)
|
|
{
|
|
vfIncluded.assign(vValue.size(), false);
|
|
CAmount nTotal = 0;
|
|
bool fReachedTarget = false;
|
|
for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
|
|
{
|
|
for (unsigned int i = 0; i < vValue.size(); i++)
|
|
{
|
|
//The solver here uses a randomized algorithm,
|
|
//the randomness serves no real security purpose but is just
|
|
//needed to prevent degenerate behavior and it is important
|
|
//that the rng is fast. We do not use a constant random sequence,
|
|
//because there may be some privacy improvement by making
|
|
//the selection random.
|
|
if (nPass == 0 ? insecure_rand.randbool() : !vfIncluded[i])
|
|
{
|
|
nTotal += vValue[i].txout.nValue;
|
|
vfIncluded[i] = true;
|
|
if (nTotal >= nTargetValue)
|
|
{
|
|
fReachedTarget = true;
|
|
if (nTotal < nBest)
|
|
{
|
|
nBest = nTotal;
|
|
vfBest = vfIncluded;
|
|
}
|
|
nTotal -= vValue[i].txout.nValue;
|
|
vfIncluded[i] = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMine, const int nConfTheirs, const uint64_t nMaxAncestors, std::vector<COutput> vCoins,
|
|
std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet) const
|
|
{
|
|
setCoinsRet.clear();
|
|
nValueRet = 0;
|
|
|
|
// List of values less than target
|
|
boost::optional<CInputCoin> coinLowestLarger;
|
|
std::vector<CInputCoin> vValue;
|
|
CAmount nTotalLower = 0;
|
|
|
|
random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
|
|
|
|
for (const COutput &output : vCoins)
|
|
{
|
|
if (!output.fSpendable)
|
|
continue;
|
|
|
|
const CWalletTx *pcoin = output.tx;
|
|
|
|
if (output.nDepth < (pcoin->IsFromMe(ISMINE_ALL) ? nConfMine : nConfTheirs))
|
|
continue;
|
|
|
|
if (!mempool.TransactionWithinChainLimit(pcoin->GetHash(), nMaxAncestors))
|
|
continue;
|
|
|
|
int i = output.i;
|
|
|
|
CInputCoin coin = CInputCoin(pcoin, i);
|
|
|
|
if (coin.txout.nValue == nTargetValue)
|
|
{
|
|
setCoinsRet.insert(coin);
|
|
nValueRet += coin.txout.nValue;
|
|
return true;
|
|
}
|
|
else if (coin.txout.nValue < nTargetValue + MIN_CHANGE)
|
|
{
|
|
vValue.push_back(coin);
|
|
nTotalLower += coin.txout.nValue;
|
|
}
|
|
else if (!coinLowestLarger || coin.txout.nValue < coinLowestLarger->txout.nValue)
|
|
{
|
|
coinLowestLarger = coin;
|
|
}
|
|
}
|
|
|
|
if (nTotalLower == nTargetValue)
|
|
{
|
|
for (const auto& input : vValue)
|
|
{
|
|
setCoinsRet.insert(input);
|
|
nValueRet += input.txout.nValue;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (nTotalLower < nTargetValue)
|
|
{
|
|
if (!coinLowestLarger)
|
|
return false;
|
|
setCoinsRet.insert(coinLowestLarger.get());
|
|
nValueRet += coinLowestLarger->txout.nValue;
|
|
return true;
|
|
}
|
|
|
|
// Solve subset sum by stochastic approximation
|
|
std::sort(vValue.begin(), vValue.end(), CompareValueOnly());
|
|
std::reverse(vValue.begin(), vValue.end());
|
|
std::vector<char> vfBest;
|
|
CAmount nBest;
|
|
|
|
ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest);
|
|
if (nBest != nTargetValue && nTotalLower >= nTargetValue + MIN_CHANGE)
|
|
ApproximateBestSubset(vValue, nTotalLower, nTargetValue + MIN_CHANGE, vfBest, nBest);
|
|
|
|
// If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
|
|
// or the next bigger coin is closer), return the bigger coin
|
|
if (coinLowestLarger &&
|
|
((nBest != nTargetValue && nBest < nTargetValue + MIN_CHANGE) || coinLowestLarger->txout.nValue <= nBest))
|
|
{
|
|
setCoinsRet.insert(coinLowestLarger.get());
|
|
nValueRet += coinLowestLarger->txout.nValue;
|
|
}
|
|
else {
|
|
for (unsigned int i = 0; i < vValue.size(); i++)
|
|
if (vfBest[i])
|
|
{
|
|
setCoinsRet.insert(vValue[i]);
|
|
nValueRet += vValue[i].txout.nValue;
|
|
}
|
|
|
|
if (LogAcceptCategory(BCLog::SELECTCOINS)) {
|
|
LogPrint(BCLog::SELECTCOINS, "SelectCoins() best subset: ");
|
|
for (unsigned int i = 0; i < vValue.size(); i++) {
|
|
if (vfBest[i]) {
|
|
LogPrint(BCLog::SELECTCOINS, "%s ", FormatMoney(vValue[i].txout.nValue));
|
|
}
|
|
}
|
|
LogPrint(BCLog::SELECTCOINS, "total %s\n", FormatMoney(nBest));
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const
|
|
{
|
|
std::vector<COutput> vCoins(vAvailableCoins);
|
|
|
|
// coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
|
|
if (coinControl && coinControl->HasSelected() && !coinControl->fAllowOtherInputs)
|
|
{
|
|
for (const COutput& out : vCoins)
|
|
{
|
|
if (!out.fSpendable)
|
|
continue;
|
|
nValueRet += out.tx->tx->vout[out.i].nValue;
|
|
setCoinsRet.insert(CInputCoin(out.tx, out.i));
|
|
}
|
|
return (nValueRet >= nTargetValue);
|
|
}
|
|
|
|
// calculate value from preset inputs and store them
|
|
std::set<CInputCoin> setPresetCoins;
|
|
CAmount nValueFromPresetInputs = 0;
|
|
|
|
std::vector<COutPoint> vPresetInputs;
|
|
if (coinControl)
|
|
coinControl->ListSelected(vPresetInputs);
|
|
for (const COutPoint& outpoint : vPresetInputs)
|
|
{
|
|
std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
|
|
if (it != mapWallet.end())
|
|
{
|
|
const CWalletTx* pcoin = &it->second;
|
|
// Clearly invalid input, fail
|
|
if (pcoin->tx->vout.size() <= outpoint.n)
|
|
return false;
|
|
nValueFromPresetInputs += pcoin->tx->vout[outpoint.n].nValue;
|
|
setPresetCoins.insert(CInputCoin(pcoin, outpoint.n));
|
|
} else
|
|
return false; // TODO: Allow non-wallet inputs
|
|
}
|
|
|
|
// remove preset inputs from vCoins
|
|
for (std::vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coinControl && coinControl->HasSelected();)
|
|
{
|
|
if (setPresetCoins.count(CInputCoin(it->tx, it->i)))
|
|
it = vCoins.erase(it);
|
|
else
|
|
++it;
|
|
}
|
|
|
|
size_t nMaxChainLength = std::min(gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT), gArgs.GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT));
|
|
bool fRejectLongChains = gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS);
|
|
|
|
bool res = nTargetValue <= nValueFromPresetInputs ||
|
|
SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 1, 6, 0, vCoins, setCoinsRet, nValueRet) ||
|
|
SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 1, 1, 0, vCoins, setCoinsRet, nValueRet) ||
|
|
(bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 0, 1, 2, vCoins, setCoinsRet, nValueRet)) ||
|
|
(bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 0, 1, std::min((size_t)4, nMaxChainLength/3), vCoins, setCoinsRet, nValueRet)) ||
|
|
(bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 0, 1, nMaxChainLength/2, vCoins, setCoinsRet, nValueRet)) ||
|
|
(bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 0, 1, nMaxChainLength, vCoins, setCoinsRet, nValueRet)) ||
|
|
(bSpendZeroConfChange && !fRejectLongChains && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 0, 1, std::numeric_limits<uint64_t>::max(), vCoins, setCoinsRet, nValueRet));
|
|
|
|
// because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
|
|
setCoinsRet.insert(setPresetCoins.begin(), setPresetCoins.end());
|
|
|
|
// add preset inputs to the total value selected
|
|
nValueRet += nValueFromPresetInputs;
|
|
|
|
return res;
|
|
}
|
|
|
|
bool CWallet::SignTransaction(CMutableTransaction &tx)
|
|
{
|
|
AssertLockHeld(cs_wallet); // mapWallet
|
|
|
|
// sign the new tx
|
|
CTransaction txNewConst(tx);
|
|
int nIn = 0;
|
|
for (const auto& input : tx.vin) {
|
|
std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(input.prevout.hash);
|
|
if(mi == mapWallet.end() || input.prevout.n >= mi->second.tx->vout.size()) {
|
|
return false;
|
|
}
|
|
const CScript& scriptPubKey = mi->second.tx->vout[input.prevout.n].scriptPubKey;
|
|
const CAmount& amount = mi->second.tx->vout[input.prevout.n].nValue;
|
|
SignatureData sigdata;
|
|
if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, amount, SIGHASH_ALL), scriptPubKey, sigdata)) {
|
|
return false;
|
|
}
|
|
UpdateTransaction(tx, nIn, sigdata);
|
|
nIn++;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, CCoinControl coinControl)
|
|
{
|
|
std::vector<CRecipient> vecSend;
|
|
|
|
// Turn the txout set into a CRecipient vector.
|
|
for (size_t idx = 0; idx < tx.vout.size(); idx++) {
|
|
const CTxOut& txOut = tx.vout[idx];
|
|
CRecipient recipient = {txOut.scriptPubKey, txOut.nValue, setSubtractFeeFromOutputs.count(idx) == 1};
|
|
vecSend.push_back(recipient);
|
|
}
|
|
|
|
coinControl.fAllowOtherInputs = true;
|
|
|
|
for (const CTxIn& txin : tx.vin) {
|
|
coinControl.Select(txin.prevout);
|
|
}
|
|
|
|
// Acquire the locks to prevent races to the new locked unspents between the
|
|
// CreateTransaction call and LockCoin calls (when lockUnspents is true).
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
CReserveKey reservekey(this);
|
|
CWalletTx wtx;
|
|
if (!CreateTransaction(vecSend, wtx, reservekey, nFeeRet, nChangePosInOut, strFailReason, coinControl, false)) {
|
|
return false;
|
|
}
|
|
|
|
if (nChangePosInOut != -1) {
|
|
tx.vout.insert(tx.vout.begin() + nChangePosInOut, wtx.tx->vout[nChangePosInOut]);
|
|
// We don't have the normal Create/Commit cycle, and don't want to risk
|
|
// reusing change, so just remove the key from the keypool here.
|
|
reservekey.KeepKey();
|
|
}
|
|
|
|
// Copy output sizes from new transaction; they may have had the fee
|
|
// subtracted from them.
|
|
for (unsigned int idx = 0; idx < tx.vout.size(); idx++) {
|
|
tx.vout[idx].nValue = wtx.tx->vout[idx].nValue;
|
|
}
|
|
|
|
// Add new txins while keeping original txin scriptSig/order.
|
|
for (const CTxIn& txin : wtx.tx->vin) {
|
|
if (!coinControl.IsSelected(txin.prevout)) {
|
|
tx.vin.push_back(txin);
|
|
|
|
if (lockUnspents) {
|
|
LockCoin(txin.prevout);
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
OutputType CWallet::TransactionChangeType(OutputType change_type, const std::vector<CRecipient>& vecSend)
|
|
{
|
|
// If -changetype is specified, always use that change type.
|
|
if (change_type != OUTPUT_TYPE_NONE) {
|
|
return change_type;
|
|
}
|
|
|
|
// if g_address_type is legacy, use legacy address as change (even
|
|
// if some of the outputs are P2WPKH or P2WSH).
|
|
if (g_address_type == OUTPUT_TYPE_LEGACY) {
|
|
return OUTPUT_TYPE_LEGACY;
|
|
}
|
|
|
|
// if any destination is P2WPKH or P2WSH, use P2WPKH for the change
|
|
// output.
|
|
for (const auto& recipient : vecSend) {
|
|
// Check if any destination contains a witness program:
|
|
int witnessversion = 0;
|
|
std::vector<unsigned char> witnessprogram;
|
|
if (recipient.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) {
|
|
return OUTPUT_TYPE_BECH32;
|
|
}
|
|
}
|
|
|
|
// else use g_address_type for change
|
|
return g_address_type;
|
|
}
|
|
|
|
bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
|
|
int& nChangePosInOut, std::string& strFailReason, const CCoinControl& coin_control, bool sign)
|
|
{
|
|
CAmount nValue = 0;
|
|
int nChangePosRequest = nChangePosInOut;
|
|
unsigned int nSubtractFeeFromAmount = 0;
|
|
for (const auto& recipient : vecSend)
|
|
{
|
|
if (nValue < 0 || recipient.nAmount < 0)
|
|
{
|
|
strFailReason = _("Transaction amounts must not be negative");
|
|
return false;
|
|
}
|
|
nValue += recipient.nAmount;
|
|
|
|
if (recipient.fSubtractFeeFromAmount)
|
|
nSubtractFeeFromAmount++;
|
|
}
|
|
if (vecSend.empty())
|
|
{
|
|
strFailReason = _("Transaction must have at least one recipient");
|
|
return false;
|
|
}
|
|
|
|
wtxNew.fTimeReceivedIsTxTime = true;
|
|
wtxNew.BindWallet(this);
|
|
CMutableTransaction txNew;
|
|
|
|
// Discourage fee sniping.
|
|
//
|
|
// For a large miner the value of the transactions in the best block and
|
|
// the mempool can exceed the cost of deliberately attempting to mine two
|
|
// blocks to orphan the current best block. By setting nLockTime such that
|
|
// only the next block can include the transaction, we discourage this
|
|
// practice as the height restricted and limited blocksize gives miners
|
|
// considering fee sniping fewer options for pulling off this attack.
|
|
//
|
|
// A simple way to think about this is from the wallet's point of view we
|
|
// always want the blockchain to move forward. By setting nLockTime this
|
|
// way we're basically making the statement that we only want this
|
|
// transaction to appear in the next block; we don't want to potentially
|
|
// encourage reorgs by allowing transactions to appear at lower heights
|
|
// than the next block in forks of the best chain.
|
|
//
|
|
// Of course, the subsidy is high enough, and transaction volume low
|
|
// enough, that fee sniping isn't a problem yet, but by implementing a fix
|
|
// now we ensure code won't be written that makes assumptions about
|
|
// nLockTime that preclude a fix later.
|
|
txNew.nLockTime = chainActive.Height();
|
|
|
|
// Secondly occasionally randomly pick a nLockTime even further back, so
|
|
// that transactions that are delayed after signing for whatever reason,
|
|
// e.g. high-latency mix networks and some CoinJoin implementations, have
|
|
// better privacy.
|
|
if (GetRandInt(10) == 0)
|
|
txNew.nLockTime = std::max(0, (int)txNew.nLockTime - GetRandInt(100));
|
|
|
|
assert(txNew.nLockTime <= (unsigned int)chainActive.Height());
|
|
assert(txNew.nLockTime < LOCKTIME_THRESHOLD);
|
|
FeeCalculation feeCalc;
|
|
CAmount nFeeNeeded;
|
|
unsigned int nBytes;
|
|
{
|
|
std::set<CInputCoin> setCoins;
|
|
LOCK2(cs_main, cs_wallet);
|
|
{
|
|
std::vector<COutput> vAvailableCoins;
|
|
AvailableCoins(vAvailableCoins, true, &coin_control);
|
|
|
|
// Create change script that will be used if we need change
|
|
// TODO: pass in scriptChange instead of reservekey so
|
|
// change transaction isn't always pay-to-bitcoin-address
|
|
CScript scriptChange;
|
|
|
|
// coin control: send change to custom address
|
|
if (!boost::get<CNoDestination>(&coin_control.destChange)) {
|
|
scriptChange = GetScriptForDestination(coin_control.destChange);
|
|
} else { // no coin control: send change to newly generated address
|
|
// Note: We use a new key here to keep it from being obvious which side is the change.
|
|
// The drawback is that by not reusing a previous key, the change may be lost if a
|
|
// backup is restored, if the backup doesn't have the new private key for the change.
|
|
// If we reused the old key, it would be possible to add code to look for and
|
|
// rediscover unknown transactions that were written with keys of ours to recover
|
|
// post-backup change.
|
|
|
|
// Reserve a new key pair from key pool
|
|
CPubKey vchPubKey;
|
|
bool ret;
|
|
ret = reservekey.GetReservedKey(vchPubKey, true);
|
|
if (!ret)
|
|
{
|
|
strFailReason = _("Keypool ran out, please call keypoolrefill first");
|
|
return false;
|
|
}
|
|
|
|
const OutputType change_type = TransactionChangeType(coin_control.change_type, vecSend);
|
|
|
|
LearnRelatedScripts(vchPubKey, change_type);
|
|
scriptChange = GetScriptForDestination(GetDestinationForKey(vchPubKey, change_type));
|
|
}
|
|
CTxOut change_prototype_txout(0, scriptChange);
|
|
size_t change_prototype_size = GetSerializeSize(change_prototype_txout, SER_DISK, 0);
|
|
|
|
CFeeRate discard_rate = GetDiscardRate(::feeEstimator);
|
|
nFeeRet = 0;
|
|
bool pick_new_inputs = true;
|
|
CAmount nValueIn = 0;
|
|
// Start with no fee and loop until there is enough fee
|
|
while (true)
|
|
{
|
|
nChangePosInOut = nChangePosRequest;
|
|
txNew.vin.clear();
|
|
txNew.vout.clear();
|
|
wtxNew.fFromMe = true;
|
|
bool fFirst = true;
|
|
|
|
CAmount nValueToSelect = nValue;
|
|
if (nSubtractFeeFromAmount == 0)
|
|
nValueToSelect += nFeeRet;
|
|
// vouts to the payees
|
|
for (const auto& recipient : vecSend)
|
|
{
|
|
CTxOut txout(recipient.nAmount, recipient.scriptPubKey);
|
|
|
|
if (recipient.fSubtractFeeFromAmount)
|
|
{
|
|
assert(nSubtractFeeFromAmount != 0);
|
|
txout.nValue -= nFeeRet / nSubtractFeeFromAmount; // Subtract fee equally from each selected recipient
|
|
|
|
if (fFirst) // first receiver pays the remainder not divisible by output count
|
|
{
|
|
fFirst = false;
|
|
txout.nValue -= nFeeRet % nSubtractFeeFromAmount;
|
|
}
|
|
}
|
|
|
|
if (IsDust(txout, ::dustRelayFee))
|
|
{
|
|
if (recipient.fSubtractFeeFromAmount && nFeeRet > 0)
|
|
{
|
|
if (txout.nValue < 0)
|
|
strFailReason = _("The transaction amount is too small to pay the fee");
|
|
else
|
|
strFailReason = _("The transaction amount is too small to send after the fee has been deducted");
|
|
}
|
|
else
|
|
strFailReason = _("Transaction amount too small");
|
|
return false;
|
|
}
|
|
txNew.vout.push_back(txout);
|
|
}
|
|
|
|
// Choose coins to use
|
|
if (pick_new_inputs) {
|
|
nValueIn = 0;
|
|
setCoins.clear();
|
|
if (!SelectCoins(vAvailableCoins, nValueToSelect, setCoins, nValueIn, &coin_control))
|
|
{
|
|
strFailReason = _("Insufficient funds");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const CAmount nChange = nValueIn - nValueToSelect;
|
|
|
|
if (nChange > 0)
|
|
{
|
|
// Fill a vout to ourself
|
|
CTxOut newTxOut(nChange, scriptChange);
|
|
|
|
// Never create dust outputs; if we would, just
|
|
// add the dust to the fee.
|
|
if (IsDust(newTxOut, discard_rate))
|
|
{
|
|
nChangePosInOut = -1;
|
|
nFeeRet += nChange;
|
|
}
|
|
else
|
|
{
|
|
if (nChangePosInOut == -1)
|
|
{
|
|
// Insert change txn at random position:
|
|
nChangePosInOut = GetRandInt(txNew.vout.size()+1);
|
|
}
|
|
else if ((unsigned int)nChangePosInOut > txNew.vout.size())
|
|
{
|
|
strFailReason = _("Change index out of range");
|
|
return false;
|
|
}
|
|
|
|
std::vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosInOut;
|
|
txNew.vout.insert(position, newTxOut);
|
|
}
|
|
} else {
|
|
nChangePosInOut = -1;
|
|
}
|
|
|
|
// Fill vin
|
|
//
|
|
// Note how the sequence number is set to non-maxint so that
|
|
// the nLockTime set above actually works.
|
|
//
|
|
// BIP125 defines opt-in RBF as any nSequence < maxint-1, so
|
|
// we use the highest possible value in that range (maxint-2)
|
|
// to avoid conflicting with other possible uses of nSequence,
|
|
// and in the spirit of "smallest possible change from prior
|
|
// behavior."
|
|
const uint32_t nSequence = coin_control.signalRbf ? MAX_BIP125_RBF_SEQUENCE : (CTxIn::SEQUENCE_FINAL - 1);
|
|
for (const auto& coin : setCoins)
|
|
txNew.vin.push_back(CTxIn(coin.outpoint,CScript(),
|
|
nSequence));
|
|
|
|
// Fill in dummy signatures for fee calculation.
|
|
if (!DummySignTx(txNew, setCoins)) {
|
|
strFailReason = _("Signing transaction failed");
|
|
return false;
|
|
}
|
|
|
|
nBytes = GetVirtualTransactionSize(txNew);
|
|
|
|
// Remove scriptSigs to eliminate the fee calculation dummy signatures
|
|
for (auto& vin : txNew.vin) {
|
|
vin.scriptSig = CScript();
|
|
vin.scriptWitness.SetNull();
|
|
}
|
|
|
|
nFeeNeeded = GetMinimumFee(nBytes, coin_control, ::mempool, ::feeEstimator, &feeCalc);
|
|
|
|
// If we made it here and we aren't even able to meet the relay fee on the next pass, give up
|
|
// because we must be at the maximum allowed fee.
|
|
if (nFeeNeeded < ::minRelayTxFee.GetFee(nBytes))
|
|
{
|
|
strFailReason = _("Transaction too large for fee policy");
|
|
return false;
|
|
}
|
|
|
|
if (nFeeRet >= nFeeNeeded) {
|
|
// Reduce fee to only the needed amount if possible. This
|
|
// prevents potential overpayment in fees if the coins
|
|
// selected to meet nFeeNeeded result in a transaction that
|
|
// requires less fee than the prior iteration.
|
|
|
|
// If we have no change and a big enough excess fee, then
|
|
// try to construct transaction again only without picking
|
|
// new inputs. We now know we only need the smaller fee
|
|
// (because of reduced tx size) and so we should add a
|
|
// change output. Only try this once.
|
|
if (nChangePosInOut == -1 && nSubtractFeeFromAmount == 0 && pick_new_inputs) {
|
|
unsigned int tx_size_with_change = nBytes + change_prototype_size + 2; // Add 2 as a buffer in case increasing # of outputs changes compact size
|
|
CAmount fee_needed_with_change = GetMinimumFee(tx_size_with_change, coin_control, ::mempool, ::feeEstimator, nullptr);
|
|
CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, discard_rate);
|
|
if (nFeeRet >= fee_needed_with_change + minimum_value_for_change) {
|
|
pick_new_inputs = false;
|
|
nFeeRet = fee_needed_with_change;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// If we have change output already, just increase it
|
|
if (nFeeRet > nFeeNeeded && nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
|
|
CAmount extraFeePaid = nFeeRet - nFeeNeeded;
|
|
std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
|
|
change_position->nValue += extraFeePaid;
|
|
nFeeRet -= extraFeePaid;
|
|
}
|
|
break; // Done, enough fee included.
|
|
}
|
|
else if (!pick_new_inputs) {
|
|
// This shouldn't happen, we should have had enough excess
|
|
// fee to pay for the new output and still meet nFeeNeeded
|
|
// Or we should have just subtracted fee from recipients and
|
|
// nFeeNeeded should not have changed
|
|
strFailReason = _("Transaction fee and change calculation failed");
|
|
return false;
|
|
}
|
|
|
|
// Try to reduce change to include necessary fee
|
|
if (nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
|
|
CAmount additionalFeeNeeded = nFeeNeeded - nFeeRet;
|
|
std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
|
|
// Only reduce change if remaining amount is still a large enough output.
|
|
if (change_position->nValue >= MIN_FINAL_CHANGE + additionalFeeNeeded) {
|
|
change_position->nValue -= additionalFeeNeeded;
|
|
nFeeRet += additionalFeeNeeded;
|
|
break; // Done, able to increase fee from change
|
|
}
|
|
}
|
|
|
|
// If subtracting fee from recipients, we now know what fee we
|
|
// need to subtract, we have no reason to reselect inputs
|
|
if (nSubtractFeeFromAmount > 0) {
|
|
pick_new_inputs = false;
|
|
}
|
|
|
|
// Include more fee and try again.
|
|
nFeeRet = nFeeNeeded;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (nChangePosInOut == -1) reservekey.ReturnKey(); // Return any reserved key if we don't have change
|
|
|
|
if (sign)
|
|
{
|
|
CTransaction txNewConst(txNew);
|
|
int nIn = 0;
|
|
for (const auto& coin : setCoins)
|
|
{
|
|
const CScript& scriptPubKey = coin.txout.scriptPubKey;
|
|
SignatureData sigdata;
|
|
|
|
if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.txout.nValue, SIGHASH_ALL), scriptPubKey, sigdata))
|
|
{
|
|
strFailReason = _("Signing transaction failed");
|
|
return false;
|
|
} else {
|
|
UpdateTransaction(txNew, nIn, sigdata);
|
|
}
|
|
|
|
nIn++;
|
|
}
|
|
}
|
|
|
|
// Embed the constructed transaction data in wtxNew.
|
|
wtxNew.SetTx(MakeTransactionRef(std::move(txNew)));
|
|
|
|
// Limit size
|
|
if (GetTransactionWeight(*wtxNew.tx) >= MAX_STANDARD_TX_WEIGHT)
|
|
{
|
|
strFailReason = _("Transaction too large");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) {
|
|
// Lastly, ensure this tx will pass the mempool's chain limits
|
|
LockPoints lp;
|
|
CTxMemPoolEntry entry(wtxNew.tx, 0, 0, 0, false, 0, lp);
|
|
CTxMemPool::setEntries setAncestors;
|
|
size_t nLimitAncestors = gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
|
|
size_t nLimitAncestorSize = gArgs.GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
|
|
size_t nLimitDescendants = gArgs.GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT);
|
|
size_t nLimitDescendantSize = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT)*1000;
|
|
std::string errString;
|
|
if (!mempool.CalculateMemPoolAncestors(entry, setAncestors, nLimitAncestors, nLimitAncestorSize, nLimitDescendants, nLimitDescendantSize, errString)) {
|
|
strFailReason = _("Transaction has too long of a mempool chain");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
LogPrintf("Fee Calculation: Fee:%d Bytes:%u Needed:%d Tgt:%d (requested %d) Reason:\"%s\" Decay %.5f: Estimation: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out) Fail: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out)\n",
|
|
nFeeRet, nBytes, nFeeNeeded, feeCalc.returnedTarget, feeCalc.desiredTarget, StringForFeeReason(feeCalc.reason), feeCalc.est.decay,
|
|
feeCalc.est.pass.start, feeCalc.est.pass.end,
|
|
100 * feeCalc.est.pass.withinTarget / (feeCalc.est.pass.totalConfirmed + feeCalc.est.pass.inMempool + feeCalc.est.pass.leftMempool),
|
|
feeCalc.est.pass.withinTarget, feeCalc.est.pass.totalConfirmed, feeCalc.est.pass.inMempool, feeCalc.est.pass.leftMempool,
|
|
feeCalc.est.fail.start, feeCalc.est.fail.end,
|
|
100 * feeCalc.est.fail.withinTarget / (feeCalc.est.fail.totalConfirmed + feeCalc.est.fail.inMempool + feeCalc.est.fail.leftMempool),
|
|
feeCalc.est.fail.withinTarget, feeCalc.est.fail.totalConfirmed, feeCalc.est.fail.inMempool, feeCalc.est.fail.leftMempool);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Call after CreateTransaction unless you want to abort
|
|
*/
|
|
bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey, CConnman* connman, CValidationState& state)
|
|
{
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
LogPrintf("CommitTransaction:\n%s", wtxNew.tx->ToString());
|
|
{
|
|
// Take key pair from key pool so it won't be used again
|
|
reservekey.KeepKey();
|
|
|
|
// Add tx to wallet, because if it has change it's also ours,
|
|
// otherwise just for transaction history.
|
|
AddToWallet(wtxNew);
|
|
|
|
// Notify that old coins are spent
|
|
for (const CTxIn& txin : wtxNew.tx->vin)
|
|
{
|
|
CWalletTx &coin = mapWallet[txin.prevout.hash];
|
|
coin.BindWallet(this);
|
|
NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
|
|
}
|
|
}
|
|
|
|
// Track how many getdata requests our transaction gets
|
|
mapRequestCount[wtxNew.GetHash()] = 0;
|
|
|
|
// Get the inserted-CWalletTx from mapWallet so that the
|
|
// fInMempool flag is cached properly
|
|
CWalletTx& wtx = mapWallet[wtxNew.GetHash()];
|
|
|
|
if (fBroadcastTransactions)
|
|
{
|
|
// Broadcast
|
|
if (!wtx.AcceptToMemoryPool(maxTxFee, state)) {
|
|
LogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", state.GetRejectReason());
|
|
// TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
|
|
} else {
|
|
wtx.RelayWalletTransaction(connman);
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void CWallet::ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& entries) {
|
|
CWalletDB walletdb(*dbw);
|
|
return walletdb.ListAccountCreditDebit(strAccount, entries);
|
|
}
|
|
|
|
bool CWallet::AddAccountingEntry(const CAccountingEntry& acentry)
|
|
{
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
return AddAccountingEntry(acentry, &walletdb);
|
|
}
|
|
|
|
bool CWallet::AddAccountingEntry(const CAccountingEntry& acentry, CWalletDB *pwalletdb)
|
|
{
|
|
if (!pwalletdb->WriteAccountingEntry(++nAccountingEntryNumber, acentry)) {
|
|
return false;
|
|
}
|
|
|
|
laccentries.push_back(acentry);
|
|
CAccountingEntry & entry = laccentries.back();
|
|
wtxOrdered.insert(std::make_pair(entry.nOrderPos, TxPair(nullptr, &entry)));
|
|
|
|
return true;
|
|
}
|
|
|
|
DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
fFirstRunRet = false;
|
|
DBErrors nLoadWalletRet = CWalletDB(*dbw,"cr+").LoadWallet(this);
|
|
if (nLoadWalletRet == DB_NEED_REWRITE)
|
|
{
|
|
if (dbw->Rewrite("\x04pool"))
|
|
{
|
|
setInternalKeyPool.clear();
|
|
setExternalKeyPool.clear();
|
|
m_pool_key_to_index.clear();
|
|
// Note: can't top-up keypool here, because wallet is locked.
|
|
// User will be prompted to unlock wallet the next operation
|
|
// that requires a new key.
|
|
}
|
|
}
|
|
|
|
// This wallet is in its first run if all of these are empty
|
|
fFirstRunRet = mapKeys.empty() && mapCryptedKeys.empty() && mapWatchKeys.empty() && setWatchOnly.empty() && mapScripts.empty();
|
|
|
|
if (nLoadWalletRet != DB_LOAD_OK)
|
|
return nLoadWalletRet;
|
|
|
|
uiInterface.LoadWallet(this);
|
|
|
|
return DB_LOAD_OK;
|
|
}
|
|
|
|
DBErrors CWallet::ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut)
|
|
{
|
|
AssertLockHeld(cs_wallet); // mapWallet
|
|
DBErrors nZapSelectTxRet = CWalletDB(*dbw,"cr+").ZapSelectTx(vHashIn, vHashOut);
|
|
for (uint256 hash : vHashOut)
|
|
mapWallet.erase(hash);
|
|
|
|
if (nZapSelectTxRet == DB_NEED_REWRITE)
|
|
{
|
|
if (dbw->Rewrite("\x04pool"))
|
|
{
|
|
setInternalKeyPool.clear();
|
|
setExternalKeyPool.clear();
|
|
m_pool_key_to_index.clear();
|
|
// Note: can't top-up keypool here, because wallet is locked.
|
|
// User will be prompted to unlock wallet the next operation
|
|
// that requires a new key.
|
|
}
|
|
}
|
|
|
|
if (nZapSelectTxRet != DB_LOAD_OK)
|
|
return nZapSelectTxRet;
|
|
|
|
MarkDirty();
|
|
|
|
return DB_LOAD_OK;
|
|
|
|
}
|
|
|
|
DBErrors CWallet::ZapWalletTx(std::vector<CWalletTx>& vWtx)
|
|
{
|
|
DBErrors nZapWalletTxRet = CWalletDB(*dbw,"cr+").ZapWalletTx(vWtx);
|
|
if (nZapWalletTxRet == DB_NEED_REWRITE)
|
|
{
|
|
if (dbw->Rewrite("\x04pool"))
|
|
{
|
|
LOCK(cs_wallet);
|
|
setInternalKeyPool.clear();
|
|
setExternalKeyPool.clear();
|
|
m_pool_key_to_index.clear();
|
|
// Note: can't top-up keypool here, because wallet is locked.
|
|
// User will be prompted to unlock wallet the next operation
|
|
// that requires a new key.
|
|
}
|
|
}
|
|
|
|
if (nZapWalletTxRet != DB_LOAD_OK)
|
|
return nZapWalletTxRet;
|
|
|
|
return DB_LOAD_OK;
|
|
}
|
|
|
|
|
|
bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& strName, const std::string& strPurpose)
|
|
{
|
|
bool fUpdated = false;
|
|
{
|
|
LOCK(cs_wallet); // mapAddressBook
|
|
std::map<CTxDestination, CAddressBookData>::iterator mi = mapAddressBook.find(address);
|
|
fUpdated = mi != mapAddressBook.end();
|
|
mapAddressBook[address].name = strName;
|
|
if (!strPurpose.empty()) /* update purpose only if requested */
|
|
mapAddressBook[address].purpose = strPurpose;
|
|
}
|
|
NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address) != ISMINE_NO,
|
|
strPurpose, (fUpdated ? CT_UPDATED : CT_NEW) );
|
|
if (!strPurpose.empty() && !CWalletDB(*dbw).WritePurpose(EncodeDestination(address), strPurpose))
|
|
return false;
|
|
return CWalletDB(*dbw).WriteName(EncodeDestination(address), strName);
|
|
}
|
|
|
|
bool CWallet::DelAddressBook(const CTxDestination& address)
|
|
{
|
|
{
|
|
LOCK(cs_wallet); // mapAddressBook
|
|
|
|
// Delete destdata tuples associated with address
|
|
std::string strAddress = EncodeDestination(address);
|
|
for (const std::pair<std::string, std::string> &item : mapAddressBook[address].destdata)
|
|
{
|
|
CWalletDB(*dbw).EraseDestData(strAddress, item.first);
|
|
}
|
|
mapAddressBook.erase(address);
|
|
}
|
|
|
|
NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address) != ISMINE_NO, "", CT_DELETED);
|
|
|
|
CWalletDB(*dbw).ErasePurpose(EncodeDestination(address));
|
|
return CWalletDB(*dbw).EraseName(EncodeDestination(address));
|
|
}
|
|
|
|
const std::string& CWallet::GetAccountName(const CScript& scriptPubKey) const
|
|
{
|
|
CTxDestination address;
|
|
if (ExtractDestination(scriptPubKey, address) && !scriptPubKey.IsUnspendable()) {
|
|
auto mi = mapAddressBook.find(address);
|
|
if (mi != mapAddressBook.end()) {
|
|
return mi->second.name;
|
|
}
|
|
}
|
|
// A scriptPubKey that doesn't have an entry in the address book is
|
|
// associated with the default account ("").
|
|
const static std::string DEFAULT_ACCOUNT_NAME;
|
|
return DEFAULT_ACCOUNT_NAME;
|
|
}
|
|
|
|
/**
|
|
* Mark old keypool keys as used,
|
|
* and generate all new keys
|
|
*/
|
|
bool CWallet::NewKeyPool()
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
for (int64_t nIndex : setInternalKeyPool) {
|
|
walletdb.ErasePool(nIndex);
|
|
}
|
|
setInternalKeyPool.clear();
|
|
|
|
for (int64_t nIndex : setExternalKeyPool) {
|
|
walletdb.ErasePool(nIndex);
|
|
}
|
|
setExternalKeyPool.clear();
|
|
|
|
m_pool_key_to_index.clear();
|
|
|
|
if (!TopUpKeyPool()) {
|
|
return false;
|
|
}
|
|
LogPrintf("CWallet::NewKeyPool rewrote keypool\n");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
size_t CWallet::KeypoolCountExternalKeys()
|
|
{
|
|
AssertLockHeld(cs_wallet); // setExternalKeyPool
|
|
return setExternalKeyPool.size();
|
|
}
|
|
|
|
void CWallet::LoadKeyPool(int64_t nIndex, const CKeyPool &keypool)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
if (keypool.fInternal) {
|
|
setInternalKeyPool.insert(nIndex);
|
|
} else {
|
|
setExternalKeyPool.insert(nIndex);
|
|
}
|
|
m_max_keypool_index = std::max(m_max_keypool_index, nIndex);
|
|
m_pool_key_to_index[keypool.vchPubKey.GetID()] = nIndex;
|
|
|
|
// If no metadata exists yet, create a default with the pool key's
|
|
// creation time. Note that this may be overwritten by actually
|
|
// stored metadata for that key later, which is fine.
|
|
CKeyID keyid = keypool.vchPubKey.GetID();
|
|
if (mapKeyMetadata.count(keyid) == 0)
|
|
mapKeyMetadata[keyid] = CKeyMetadata(keypool.nTime);
|
|
}
|
|
|
|
bool CWallet::TopUpKeyPool(unsigned int kpSize)
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
if (IsLocked())
|
|
return false;
|
|
|
|
// Top up key pool
|
|
unsigned int nTargetSize;
|
|
if (kpSize > 0)
|
|
nTargetSize = kpSize;
|
|
else
|
|
nTargetSize = std::max(gArgs.GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
|
|
|
|
// count amount of available keys (internal, external)
|
|
// make sure the keypool of external and internal keys fits the user selected target (-keypool)
|
|
int64_t missingExternal = std::max(std::max((int64_t) nTargetSize, (int64_t) 1) - (int64_t)setExternalKeyPool.size(), (int64_t) 0);
|
|
int64_t missingInternal = std::max(std::max((int64_t) nTargetSize, (int64_t) 1) - (int64_t)setInternalKeyPool.size(), (int64_t) 0);
|
|
|
|
if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT))
|
|
{
|
|
// don't create extra internal keys
|
|
missingInternal = 0;
|
|
}
|
|
bool internal = false;
|
|
CWalletDB walletdb(*dbw);
|
|
for (int64_t i = missingInternal + missingExternal; i--;)
|
|
{
|
|
if (i < missingInternal) {
|
|
internal = true;
|
|
}
|
|
|
|
assert(m_max_keypool_index < std::numeric_limits<int64_t>::max()); // How in the hell did you use so many keys?
|
|
int64_t index = ++m_max_keypool_index;
|
|
|
|
CPubKey pubkey(GenerateNewKey(walletdb, internal));
|
|
if (!walletdb.WritePool(index, CKeyPool(pubkey, internal))) {
|
|
throw std::runtime_error(std::string(__func__) + ": writing generated key failed");
|
|
}
|
|
|
|
if (internal) {
|
|
setInternalKeyPool.insert(index);
|
|
} else {
|
|
setExternalKeyPool.insert(index);
|
|
}
|
|
m_pool_key_to_index[pubkey.GetID()] = index;
|
|
}
|
|
if (missingInternal + missingExternal > 0) {
|
|
LogPrintf("keypool added %d keys (%d internal), size=%u (%u internal)\n", missingInternal + missingExternal, missingInternal, setInternalKeyPool.size() + setExternalKeyPool.size(), setInternalKeyPool.size());
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool, bool fRequestedInternal)
|
|
{
|
|
nIndex = -1;
|
|
keypool.vchPubKey = CPubKey();
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
if (!IsLocked())
|
|
TopUpKeyPool();
|
|
|
|
bool fReturningInternal = IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT) && fRequestedInternal;
|
|
std::set<int64_t>& setKeyPool = fReturningInternal ? setInternalKeyPool : setExternalKeyPool;
|
|
|
|
// Get the oldest key
|
|
if(setKeyPool.empty())
|
|
return;
|
|
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
auto it = setKeyPool.begin();
|
|
nIndex = *it;
|
|
setKeyPool.erase(it);
|
|
if (!walletdb.ReadPool(nIndex, keypool)) {
|
|
throw std::runtime_error(std::string(__func__) + ": read failed");
|
|
}
|
|
if (!HaveKey(keypool.vchPubKey.GetID())) {
|
|
throw std::runtime_error(std::string(__func__) + ": unknown key in key pool");
|
|
}
|
|
if (keypool.fInternal != fReturningInternal) {
|
|
throw std::runtime_error(std::string(__func__) + ": keypool entry misclassified");
|
|
}
|
|
|
|
assert(keypool.vchPubKey.IsValid());
|
|
m_pool_key_to_index.erase(keypool.vchPubKey.GetID());
|
|
LogPrintf("keypool reserve %d\n", nIndex);
|
|
}
|
|
}
|
|
|
|
void CWallet::KeepKey(int64_t nIndex)
|
|
{
|
|
// Remove from key pool
|
|
CWalletDB walletdb(*dbw);
|
|
walletdb.ErasePool(nIndex);
|
|
LogPrintf("keypool keep %d\n", nIndex);
|
|
}
|
|
|
|
void CWallet::ReturnKey(int64_t nIndex, bool fInternal, const CPubKey& pubkey)
|
|
{
|
|
// Return to key pool
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (fInternal) {
|
|
setInternalKeyPool.insert(nIndex);
|
|
} else {
|
|
setExternalKeyPool.insert(nIndex);
|
|
}
|
|
m_pool_key_to_index[pubkey.GetID()] = nIndex;
|
|
}
|
|
LogPrintf("keypool return %d\n", nIndex);
|
|
}
|
|
|
|
bool CWallet::GetKeyFromPool(CPubKey& result, bool internal)
|
|
{
|
|
CKeyPool keypool;
|
|
{
|
|
LOCK(cs_wallet);
|
|
int64_t nIndex = 0;
|
|
ReserveKeyFromKeyPool(nIndex, keypool, internal);
|
|
if (nIndex == -1)
|
|
{
|
|
if (IsLocked()) return false;
|
|
CWalletDB walletdb(*dbw);
|
|
result = GenerateNewKey(walletdb, internal);
|
|
return true;
|
|
}
|
|
KeepKey(nIndex);
|
|
result = keypool.vchPubKey;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static int64_t GetOldestKeyTimeInPool(const std::set<int64_t>& setKeyPool, CWalletDB& walletdb) {
|
|
if (setKeyPool.empty()) {
|
|
return GetTime();
|
|
}
|
|
|
|
CKeyPool keypool;
|
|
int64_t nIndex = *(setKeyPool.begin());
|
|
if (!walletdb.ReadPool(nIndex, keypool)) {
|
|
throw std::runtime_error(std::string(__func__) + ": read oldest key in keypool failed");
|
|
}
|
|
assert(keypool.vchPubKey.IsValid());
|
|
return keypool.nTime;
|
|
}
|
|
|
|
int64_t CWallet::GetOldestKeyPoolTime()
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
CWalletDB walletdb(*dbw);
|
|
|
|
// load oldest key from keypool, get time and return
|
|
int64_t oldestKey = GetOldestKeyTimeInPool(setExternalKeyPool, walletdb);
|
|
if (IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT)) {
|
|
oldestKey = std::max(GetOldestKeyTimeInPool(setInternalKeyPool, walletdb), oldestKey);
|
|
}
|
|
|
|
return oldestKey;
|
|
}
|
|
|
|
std::map<CTxDestination, CAmount> CWallet::GetAddressBalances()
|
|
{
|
|
std::map<CTxDestination, CAmount> balances;
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
for (const auto& walletEntry : mapWallet)
|
|
{
|
|
const CWalletTx *pcoin = &walletEntry.second;
|
|
|
|
if (!pcoin->IsTrusted())
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
int nDepth = pcoin->GetDepthInMainChain();
|
|
if (nDepth < (pcoin->IsFromMe(ISMINE_ALL) ? 0 : 1))
|
|
continue;
|
|
|
|
for (unsigned int i = 0; i < pcoin->tx->vout.size(); i++)
|
|
{
|
|
CTxDestination addr;
|
|
if (!IsMine(pcoin->tx->vout[i]))
|
|
continue;
|
|
if(!ExtractDestination(pcoin->tx->vout[i].scriptPubKey, addr))
|
|
continue;
|
|
|
|
CAmount n = IsSpent(walletEntry.first, i) ? 0 : pcoin->tx->vout[i].nValue;
|
|
|
|
if (!balances.count(addr))
|
|
balances[addr] = 0;
|
|
balances[addr] += n;
|
|
}
|
|
}
|
|
}
|
|
|
|
return balances;
|
|
}
|
|
|
|
std::set< std::set<CTxDestination> > CWallet::GetAddressGroupings()
|
|
{
|
|
AssertLockHeld(cs_wallet); // mapWallet
|
|
std::set< std::set<CTxDestination> > groupings;
|
|
std::set<CTxDestination> grouping;
|
|
|
|
for (const auto& walletEntry : mapWallet)
|
|
{
|
|
const CWalletTx *pcoin = &walletEntry.second;
|
|
|
|
if (pcoin->tx->vin.size() > 0)
|
|
{
|
|
bool any_mine = false;
|
|
// group all input addresses with each other
|
|
for (CTxIn txin : pcoin->tx->vin)
|
|
{
|
|
CTxDestination address;
|
|
if(!IsMine(txin)) /* If this input isn't mine, ignore it */
|
|
continue;
|
|
if(!ExtractDestination(mapWallet[txin.prevout.hash].tx->vout[txin.prevout.n].scriptPubKey, address))
|
|
continue;
|
|
grouping.insert(address);
|
|
any_mine = true;
|
|
}
|
|
|
|
// group change with input addresses
|
|
if (any_mine)
|
|
{
|
|
for (CTxOut txout : pcoin->tx->vout)
|
|
if (IsChange(txout))
|
|
{
|
|
CTxDestination txoutAddr;
|
|
if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
|
|
continue;
|
|
grouping.insert(txoutAddr);
|
|
}
|
|
}
|
|
if (grouping.size() > 0)
|
|
{
|
|
groupings.insert(grouping);
|
|
grouping.clear();
|
|
}
|
|
}
|
|
|
|
// group lone addrs by themselves
|
|
for (const auto& txout : pcoin->tx->vout)
|
|
if (IsMine(txout))
|
|
{
|
|
CTxDestination address;
|
|
if(!ExtractDestination(txout.scriptPubKey, address))
|
|
continue;
|
|
grouping.insert(address);
|
|
groupings.insert(grouping);
|
|
grouping.clear();
|
|
}
|
|
}
|
|
|
|
std::set< std::set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
|
|
std::map< CTxDestination, std::set<CTxDestination>* > setmap; // map addresses to the unique group containing it
|
|
for (std::set<CTxDestination> _grouping : groupings)
|
|
{
|
|
// make a set of all the groups hit by this new group
|
|
std::set< std::set<CTxDestination>* > hits;
|
|
std::map< CTxDestination, std::set<CTxDestination>* >::iterator it;
|
|
for (CTxDestination address : _grouping)
|
|
if ((it = setmap.find(address)) != setmap.end())
|
|
hits.insert((*it).second);
|
|
|
|
// merge all hit groups into a new single group and delete old groups
|
|
std::set<CTxDestination>* merged = new std::set<CTxDestination>(_grouping);
|
|
for (std::set<CTxDestination>* hit : hits)
|
|
{
|
|
merged->insert(hit->begin(), hit->end());
|
|
uniqueGroupings.erase(hit);
|
|
delete hit;
|
|
}
|
|
uniqueGroupings.insert(merged);
|
|
|
|
// update setmap
|
|
for (CTxDestination element : *merged)
|
|
setmap[element] = merged;
|
|
}
|
|
|
|
std::set< std::set<CTxDestination> > ret;
|
|
for (std::set<CTxDestination>* uniqueGrouping : uniqueGroupings)
|
|
{
|
|
ret.insert(*uniqueGrouping);
|
|
delete uniqueGrouping;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
std::set<CTxDestination> CWallet::GetAccountAddresses(const std::string& strAccount) const
|
|
{
|
|
LOCK(cs_wallet);
|
|
std::set<CTxDestination> result;
|
|
for (const std::pair<CTxDestination, CAddressBookData>& item : mapAddressBook)
|
|
{
|
|
const CTxDestination& address = item.first;
|
|
const std::string& strName = item.second.name;
|
|
if (strName == strAccount)
|
|
result.insert(address);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool CReserveKey::GetReservedKey(CPubKey& pubkey, bool internal)
|
|
{
|
|
if (nIndex == -1)
|
|
{
|
|
CKeyPool keypool;
|
|
pwallet->ReserveKeyFromKeyPool(nIndex, keypool, internal);
|
|
if (nIndex != -1)
|
|
vchPubKey = keypool.vchPubKey;
|
|
else {
|
|
return false;
|
|
}
|
|
fInternal = keypool.fInternal;
|
|
}
|
|
assert(vchPubKey.IsValid());
|
|
pubkey = vchPubKey;
|
|
return true;
|
|
}
|
|
|
|
void CReserveKey::KeepKey()
|
|
{
|
|
if (nIndex != -1)
|
|
pwallet->KeepKey(nIndex);
|
|
nIndex = -1;
|
|
vchPubKey = CPubKey();
|
|
}
|
|
|
|
void CReserveKey::ReturnKey()
|
|
{
|
|
if (nIndex != -1) {
|
|
pwallet->ReturnKey(nIndex, fInternal, vchPubKey);
|
|
}
|
|
nIndex = -1;
|
|
vchPubKey = CPubKey();
|
|
}
|
|
|
|
void CWallet::MarkReserveKeysAsUsed(int64_t keypool_id)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
bool internal = setInternalKeyPool.count(keypool_id);
|
|
if (!internal) assert(setExternalKeyPool.count(keypool_id));
|
|
std::set<int64_t> *setKeyPool = internal ? &setInternalKeyPool : &setExternalKeyPool;
|
|
auto it = setKeyPool->begin();
|
|
|
|
CWalletDB walletdb(*dbw);
|
|
while (it != std::end(*setKeyPool)) {
|
|
const int64_t& index = *(it);
|
|
if (index > keypool_id) break; // set*KeyPool is ordered
|
|
|
|
CKeyPool keypool;
|
|
if (walletdb.ReadPool(index, keypool)) { //TODO: This should be unnecessary
|
|
m_pool_key_to_index.erase(keypool.vchPubKey.GetID());
|
|
}
|
|
LearnAllRelatedScripts(keypool.vchPubKey);
|
|
walletdb.ErasePool(index);
|
|
LogPrintf("keypool index %d removed\n", index);
|
|
it = setKeyPool->erase(it);
|
|
}
|
|
}
|
|
|
|
void CWallet::GetScriptForMining(std::shared_ptr<CReserveScript> &script)
|
|
{
|
|
std::shared_ptr<CReserveKey> rKey = std::make_shared<CReserveKey>(this);
|
|
CPubKey pubkey;
|
|
if (!rKey->GetReservedKey(pubkey))
|
|
return;
|
|
|
|
script = rKey;
|
|
script->reserveScript = CScript() << ToByteVector(pubkey) << OP_CHECKSIG;
|
|
}
|
|
|
|
void CWallet::LockCoin(const COutPoint& output)
|
|
{
|
|
AssertLockHeld(cs_wallet); // setLockedCoins
|
|
setLockedCoins.insert(output);
|
|
}
|
|
|
|
void CWallet::UnlockCoin(const COutPoint& output)
|
|
{
|
|
AssertLockHeld(cs_wallet); // setLockedCoins
|
|
setLockedCoins.erase(output);
|
|
}
|
|
|
|
void CWallet::UnlockAllCoins()
|
|
{
|
|
AssertLockHeld(cs_wallet); // setLockedCoins
|
|
setLockedCoins.clear();
|
|
}
|
|
|
|
bool CWallet::IsLockedCoin(uint256 hash, unsigned int n) const
|
|
{
|
|
AssertLockHeld(cs_wallet); // setLockedCoins
|
|
COutPoint outpt(hash, n);
|
|
|
|
return (setLockedCoins.count(outpt) > 0);
|
|
}
|
|
|
|
void CWallet::ListLockedCoins(std::vector<COutPoint>& vOutpts) const
|
|
{
|
|
AssertLockHeld(cs_wallet); // setLockedCoins
|
|
for (std::set<COutPoint>::iterator it = setLockedCoins.begin();
|
|
it != setLockedCoins.end(); it++) {
|
|
COutPoint outpt = (*it);
|
|
vOutpts.push_back(outpt);
|
|
}
|
|
}
|
|
|
|
/** @} */ // end of Actions
|
|
|
|
void CWallet::GetKeyBirthTimes(std::map<CTxDestination, int64_t> &mapKeyBirth) const {
|
|
AssertLockHeld(cs_wallet); // mapKeyMetadata
|
|
mapKeyBirth.clear();
|
|
|
|
// get birth times for keys with metadata
|
|
for (const auto& entry : mapKeyMetadata) {
|
|
if (entry.second.nCreateTime) {
|
|
mapKeyBirth[entry.first] = entry.second.nCreateTime;
|
|
}
|
|
}
|
|
|
|
// map in which we'll infer heights of other keys
|
|
CBlockIndex *pindexMax = chainActive[std::max(0, chainActive.Height() - 144)]; // the tip can be reorganized; use a 144-block safety margin
|
|
std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock;
|
|
for (const CKeyID &keyid : GetKeys()) {
|
|
if (mapKeyBirth.count(keyid) == 0)
|
|
mapKeyFirstBlock[keyid] = pindexMax;
|
|
}
|
|
|
|
// if there are no such keys, we're done
|
|
if (mapKeyFirstBlock.empty())
|
|
return;
|
|
|
|
// find first block that affects those keys, if there are any left
|
|
std::vector<CKeyID> vAffected;
|
|
for (const auto& entry : mapWallet) {
|
|
// iterate over all wallet transactions...
|
|
const CWalletTx &wtx = entry.second;
|
|
BlockMap::const_iterator blit = mapBlockIndex.find(wtx.hashBlock);
|
|
if (blit != mapBlockIndex.end() && chainActive.Contains(blit->second)) {
|
|
// ... which are already in a block
|
|
int nHeight = blit->second->nHeight;
|
|
for (const CTxOut &txout : wtx.tx->vout) {
|
|
// iterate over all their outputs
|
|
CAffectedKeysVisitor(*this, vAffected).Process(txout.scriptPubKey);
|
|
for (const CKeyID &keyid : vAffected) {
|
|
// ... and all their affected keys
|
|
std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid);
|
|
if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight)
|
|
rit->second = blit->second;
|
|
}
|
|
vAffected.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Extract block timestamps for those keys
|
|
for (const auto& entry : mapKeyFirstBlock)
|
|
mapKeyBirth[entry.first] = entry.second->GetBlockTime() - TIMESTAMP_WINDOW; // block times can be 2h off
|
|
}
|
|
|
|
/**
|
|
* Compute smart timestamp for a transaction being added to the wallet.
|
|
*
|
|
* Logic:
|
|
* - If sending a transaction, assign its timestamp to the current time.
|
|
* - If receiving a transaction outside a block, assign its timestamp to the
|
|
* current time.
|
|
* - If receiving a block with a future timestamp, assign all its (not already
|
|
* known) transactions' timestamps to the current time.
|
|
* - If receiving a block with a past timestamp, before the most recent known
|
|
* transaction (that we care about), assign all its (not already known)
|
|
* transactions' timestamps to the same timestamp as that most-recent-known
|
|
* transaction.
|
|
* - If receiving a block with a past timestamp, but after the most recent known
|
|
* transaction, assign all its (not already known) transactions' timestamps to
|
|
* the block time.
|
|
*
|
|
* For more information see CWalletTx::nTimeSmart,
|
|
* https://bitcointalk.org/?topic=54527, or
|
|
* https://github.com/bitcoin/bitcoin/pull/1393.
|
|
*/
|
|
unsigned int CWallet::ComputeTimeSmart(const CWalletTx& wtx) const
|
|
{
|
|
unsigned int nTimeSmart = wtx.nTimeReceived;
|
|
if (!wtx.hashUnset()) {
|
|
if (mapBlockIndex.count(wtx.hashBlock)) {
|
|
int64_t latestNow = wtx.nTimeReceived;
|
|
int64_t latestEntry = 0;
|
|
|
|
// Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
|
|
int64_t latestTolerated = latestNow + 300;
|
|
const TxItems& txOrdered = wtxOrdered;
|
|
for (auto it = txOrdered.rbegin(); it != txOrdered.rend(); ++it) {
|
|
CWalletTx* const pwtx = it->second.first;
|
|
if (pwtx == &wtx) {
|
|
continue;
|
|
}
|
|
CAccountingEntry* const pacentry = it->second.second;
|
|
int64_t nSmartTime;
|
|
if (pwtx) {
|
|
nSmartTime = pwtx->nTimeSmart;
|
|
if (!nSmartTime) {
|
|
nSmartTime = pwtx->nTimeReceived;
|
|
}
|
|
} else {
|
|
nSmartTime = pacentry->nTime;
|
|
}
|
|
if (nSmartTime <= latestTolerated) {
|
|
latestEntry = nSmartTime;
|
|
if (nSmartTime > latestNow) {
|
|
latestNow = nSmartTime;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
int64_t blocktime = mapBlockIndex[wtx.hashBlock]->GetBlockTime();
|
|
nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
|
|
} else {
|
|
LogPrintf("%s: found %s in block %s not in index\n", __func__, wtx.GetHash().ToString(), wtx.hashBlock.ToString());
|
|
}
|
|
}
|
|
return nTimeSmart;
|
|
}
|
|
|
|
bool CWallet::AddDestData(const CTxDestination &dest, const std::string &key, const std::string &value)
|
|
{
|
|
if (boost::get<CNoDestination>(&dest))
|
|
return false;
|
|
|
|
mapAddressBook[dest].destdata.insert(std::make_pair(key, value));
|
|
return CWalletDB(*dbw).WriteDestData(EncodeDestination(dest), key, value);
|
|
}
|
|
|
|
bool CWallet::EraseDestData(const CTxDestination &dest, const std::string &key)
|
|
{
|
|
if (!mapAddressBook[dest].destdata.erase(key))
|
|
return false;
|
|
return CWalletDB(*dbw).EraseDestData(EncodeDestination(dest), key);
|
|
}
|
|
|
|
bool CWallet::LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value)
|
|
{
|
|
mapAddressBook[dest].destdata.insert(std::make_pair(key, value));
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const
|
|
{
|
|
std::map<CTxDestination, CAddressBookData>::const_iterator i = mapAddressBook.find(dest);
|
|
if(i != mapAddressBook.end())
|
|
{
|
|
CAddressBookData::StringMap::const_iterator j = i->second.destdata.find(key);
|
|
if(j != i->second.destdata.end())
|
|
{
|
|
if(value)
|
|
*value = j->second;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::vector<std::string> CWallet::GetDestValues(const std::string& prefix) const
|
|
{
|
|
LOCK(cs_wallet);
|
|
std::vector<std::string> values;
|
|
for (const auto& address : mapAddressBook) {
|
|
for (const auto& data : address.second.destdata) {
|
|
if (!data.first.compare(0, prefix.size(), prefix)) {
|
|
values.emplace_back(data.second);
|
|
}
|
|
}
|
|
}
|
|
return values;
|
|
}
|
|
|
|
CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
|
|
{
|
|
// needed to restore wallet transaction meta data after -zapwallettxes
|
|
std::vector<CWalletTx> vWtx;
|
|
|
|
if (gArgs.GetBoolArg("-zapwallettxes", false)) {
|
|
uiInterface.InitMessage(_("Zapping all transactions from wallet..."));
|
|
|
|
std::unique_ptr<CWalletDBWrapper> dbw(new CWalletDBWrapper(&bitdb, walletFile));
|
|
std::unique_ptr<CWallet> tempWallet = MakeUnique<CWallet>(std::move(dbw));
|
|
DBErrors nZapWalletRet = tempWallet->ZapWalletTx(vWtx);
|
|
if (nZapWalletRet != DB_LOAD_OK) {
|
|
InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
uiInterface.InitMessage(_("Loading wallet..."));
|
|
|
|
int64_t nStart = GetTimeMillis();
|
|
bool fFirstRun = true;
|
|
std::unique_ptr<CWalletDBWrapper> dbw(new CWalletDBWrapper(&bitdb, walletFile));
|
|
CWallet *walletInstance = new CWallet(std::move(dbw));
|
|
DBErrors nLoadWalletRet = walletInstance->LoadWallet(fFirstRun);
|
|
if (nLoadWalletRet != DB_LOAD_OK)
|
|
{
|
|
if (nLoadWalletRet == DB_CORRUPT) {
|
|
InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile));
|
|
return nullptr;
|
|
}
|
|
else if (nLoadWalletRet == DB_NONCRITICAL_ERROR)
|
|
{
|
|
InitWarning(strprintf(_("Error reading %s! All keys read correctly, but transaction data"
|
|
" or address book entries might be missing or incorrect."),
|
|
walletFile));
|
|
}
|
|
else if (nLoadWalletRet == DB_TOO_NEW) {
|
|
InitError(strprintf(_("Error loading %s: Wallet requires newer version of %s"), walletFile, _(PACKAGE_NAME)));
|
|
return nullptr;
|
|
}
|
|
else if (nLoadWalletRet == DB_NEED_REWRITE)
|
|
{
|
|
InitError(strprintf(_("Wallet needed to be rewritten: restart %s to complete"), _(PACKAGE_NAME)));
|
|
return nullptr;
|
|
}
|
|
else {
|
|
InitError(strprintf(_("Error loading %s"), walletFile));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (gArgs.GetBoolArg("-upgradewallet", fFirstRun))
|
|
{
|
|
int nMaxVersion = gArgs.GetArg("-upgradewallet", 0);
|
|
if (nMaxVersion == 0) // the -upgradewallet without argument case
|
|
{
|
|
LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
|
|
nMaxVersion = CLIENT_VERSION;
|
|
walletInstance->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately
|
|
}
|
|
else
|
|
LogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion);
|
|
if (nMaxVersion < walletInstance->GetVersion())
|
|
{
|
|
InitError(_("Cannot downgrade wallet"));
|
|
return nullptr;
|
|
}
|
|
walletInstance->SetMaxVersion(nMaxVersion);
|
|
}
|
|
|
|
if (fFirstRun)
|
|
{
|
|
// ensure this wallet.dat can only be opened by clients supporting HD with chain split and expects no default key
|
|
if (!gArgs.GetBoolArg("-usehd", true)) {
|
|
InitError(strprintf(_("Error creating %s: You can't create non-HD wallets with this version."), walletFile));
|
|
return nullptr;
|
|
}
|
|
walletInstance->SetMinVersion(FEATURE_NO_DEFAULT_KEY);
|
|
|
|
// generate a new master key
|
|
CPubKey masterPubKey = walletInstance->GenerateNewHDMasterKey();
|
|
if (!walletInstance->SetHDMasterKey(masterPubKey))
|
|
throw std::runtime_error(std::string(__func__) + ": Storing master key failed");
|
|
|
|
// Top up the keypool
|
|
if (!walletInstance->TopUpKeyPool()) {
|
|
InitError(_("Unable to generate initial keys") += "\n");
|
|
return nullptr;
|
|
}
|
|
|
|
walletInstance->SetBestChain(chainActive.GetLocator());
|
|
}
|
|
else if (gArgs.IsArgSet("-usehd")) {
|
|
bool useHD = gArgs.GetBoolArg("-usehd", true);
|
|
if (walletInstance->IsHDEnabled() && !useHD) {
|
|
InitError(strprintf(_("Error loading %s: You can't disable HD on an already existing HD wallet"), walletFile));
|
|
return nullptr;
|
|
}
|
|
if (!walletInstance->IsHDEnabled() && useHD) {
|
|
InitError(strprintf(_("Error loading %s: You can't enable HD on an already existing non-HD wallet"), walletFile));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
LogPrintf(" wallet %15dms\n", GetTimeMillis() - nStart);
|
|
|
|
// Try to top up keypool. No-op if the wallet is locked.
|
|
walletInstance->TopUpKeyPool();
|
|
|
|
CBlockIndex *pindexRescan = chainActive.Genesis();
|
|
if (!gArgs.GetBoolArg("-rescan", false))
|
|
{
|
|
CWalletDB walletdb(*walletInstance->dbw);
|
|
CBlockLocator locator;
|
|
if (walletdb.ReadBestBlock(locator))
|
|
pindexRescan = FindForkInGlobalIndex(chainActive, locator);
|
|
}
|
|
|
|
walletInstance->m_last_block_processed = chainActive.Tip();
|
|
RegisterValidationInterface(walletInstance);
|
|
|
|
if (chainActive.Tip() && chainActive.Tip() != pindexRescan)
|
|
{
|
|
//We can't rescan beyond non-pruned blocks, stop and throw an error
|
|
//this might happen if a user uses an old wallet within a pruned node
|
|
// or if he ran -disablewallet for a longer time, then decided to re-enable
|
|
if (fPruneMode)
|
|
{
|
|
CBlockIndex *block = chainActive.Tip();
|
|
while (block && block->pprev && (block->pprev->nStatus & BLOCK_HAVE_DATA) && block->pprev->nTx > 0 && pindexRescan != block)
|
|
block = block->pprev;
|
|
|
|
if (pindexRescan != block) {
|
|
InitError(_("Prune: last wallet synchronisation goes beyond pruned data. You need to -reindex (download the whole blockchain again in case of pruned node)"));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
uiInterface.InitMessage(_("Rescanning..."));
|
|
LogPrintf("Rescanning last %i blocks (from block %i)...\n", chainActive.Height() - pindexRescan->nHeight, pindexRescan->nHeight);
|
|
|
|
// No need to read and scan block if block was created before
|
|
// our wallet birthday (as adjusted for block time variability)
|
|
while (pindexRescan && walletInstance->nTimeFirstKey && (pindexRescan->GetBlockTime() < (walletInstance->nTimeFirstKey - TIMESTAMP_WINDOW))) {
|
|
pindexRescan = chainActive.Next(pindexRescan);
|
|
}
|
|
|
|
nStart = GetTimeMillis();
|
|
{
|
|
WalletRescanReserver reserver(walletInstance);
|
|
if (!reserver.reserve()) {
|
|
InitError(_("Failed to rescan the wallet during initialization"));
|
|
return nullptr;
|
|
}
|
|
walletInstance->ScanForWalletTransactions(pindexRescan, nullptr, reserver, true);
|
|
}
|
|
LogPrintf(" rescan %15dms\n", GetTimeMillis() - nStart);
|
|
walletInstance->SetBestChain(chainActive.GetLocator());
|
|
walletInstance->dbw->IncrementUpdateCounter();
|
|
|
|
// Restore wallet transaction metadata after -zapwallettxes=1
|
|
if (gArgs.GetBoolArg("-zapwallettxes", false) && gArgs.GetArg("-zapwallettxes", "1") != "2")
|
|
{
|
|
CWalletDB walletdb(*walletInstance->dbw);
|
|
|
|
for (const CWalletTx& wtxOld : vWtx)
|
|
{
|
|
uint256 hash = wtxOld.GetHash();
|
|
std::map<uint256, CWalletTx>::iterator mi = walletInstance->mapWallet.find(hash);
|
|
if (mi != walletInstance->mapWallet.end())
|
|
{
|
|
const CWalletTx* copyFrom = &wtxOld;
|
|
CWalletTx* copyTo = &mi->second;
|
|
copyTo->mapValue = copyFrom->mapValue;
|
|
copyTo->vOrderForm = copyFrom->vOrderForm;
|
|
copyTo->nTimeReceived = copyFrom->nTimeReceived;
|
|
copyTo->nTimeSmart = copyFrom->nTimeSmart;
|
|
copyTo->fFromMe = copyFrom->fFromMe;
|
|
copyTo->strFromAccount = copyFrom->strFromAccount;
|
|
copyTo->nOrderPos = copyFrom->nOrderPos;
|
|
walletdb.WriteTx(*copyTo);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
walletInstance->SetBroadcastTransactions(gArgs.GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST));
|
|
|
|
{
|
|
LOCK(walletInstance->cs_wallet);
|
|
LogPrintf("setKeyPool.size() = %u\n", walletInstance->GetKeyPoolSize());
|
|
LogPrintf("mapWallet.size() = %u\n", walletInstance->mapWallet.size());
|
|
LogPrintf("mapAddressBook.size() = %u\n", walletInstance->mapAddressBook.size());
|
|
}
|
|
|
|
return walletInstance;
|
|
}
|
|
|
|
std::atomic<bool> CWallet::fFlushScheduled(false);
|
|
|
|
void CWallet::postInitProcess(CScheduler& scheduler)
|
|
{
|
|
// Add wallet transactions that aren't already in a block to mempool
|
|
// Do this here as mempool requires genesis block to be loaded
|
|
ReacceptWalletTransactions();
|
|
|
|
// Run a thread to flush wallet periodically
|
|
if (!CWallet::fFlushScheduled.exchange(true)) {
|
|
scheduler.scheduleEvery(MaybeCompactWalletDB, 500);
|
|
}
|
|
}
|
|
|
|
bool CWallet::BackupWallet(const std::string& strDest)
|
|
{
|
|
return dbw->Backup(strDest);
|
|
}
|
|
|
|
CKeyPool::CKeyPool()
|
|
{
|
|
nTime = GetTime();
|
|
fInternal = false;
|
|
}
|
|
|
|
CKeyPool::CKeyPool(const CPubKey& vchPubKeyIn, bool internalIn)
|
|
{
|
|
nTime = GetTime();
|
|
vchPubKey = vchPubKeyIn;
|
|
fInternal = internalIn;
|
|
}
|
|
|
|
CWalletKey::CWalletKey(int64_t nExpires)
|
|
{
|
|
nTimeCreated = (nExpires ? GetTime() : 0);
|
|
nTimeExpires = nExpires;
|
|
}
|
|
|
|
void CMerkleTx::SetMerkleBranch(const CBlockIndex* pindex, int posInBlock)
|
|
{
|
|
// Update the tx's hashBlock
|
|
hashBlock = pindex->GetBlockHash();
|
|
|
|
// set the position of the transaction in the block
|
|
nIndex = posInBlock;
|
|
}
|
|
|
|
int CMerkleTx::GetDepthInMainChain(const CBlockIndex* &pindexRet) const
|
|
{
|
|
if (hashUnset())
|
|
return 0;
|
|
|
|
AssertLockHeld(cs_main);
|
|
|
|
// Find the block it claims to be in
|
|
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
|
|
if (mi == mapBlockIndex.end())
|
|
return 0;
|
|
CBlockIndex* pindex = (*mi).second;
|
|
if (!pindex || !chainActive.Contains(pindex))
|
|
return 0;
|
|
|
|
pindexRet = pindex;
|
|
return ((nIndex == -1) ? (-1) : 1) * (chainActive.Height() - pindex->nHeight + 1);
|
|
}
|
|
|
|
int CMerkleTx::GetBlocksToMaturity() const
|
|
{
|
|
if (!IsCoinBase())
|
|
return 0;
|
|
return std::max(0, (COINBASE_MATURITY+1) - GetDepthInMainChain());
|
|
}
|
|
|
|
|
|
bool CWalletTx::AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state)
|
|
{
|
|
// Quick check to avoid re-setting fInMempool to false
|
|
if (mempool.exists(tx->GetHash())) {
|
|
return false;
|
|
}
|
|
|
|
// We must set fInMempool here - while it will be re-set to true by the
|
|
// entered-mempool callback, if we did not there would be a race where a
|
|
// user could call sendmoney in a loop and hit spurious out of funds errors
|
|
// because we think that the transaction they just generated's change is
|
|
// unavailable as we're not yet aware its in mempool.
|
|
bool ret = ::AcceptToMemoryPool(mempool, state, tx, nullptr /* pfMissingInputs */,
|
|
nullptr /* plTxnReplaced */, false /* bypass_limits */, nAbsurdFee);
|
|
fInMempool = ret;
|
|
return ret;
|
|
}
|
|
|
|
static const std::string OUTPUT_TYPE_STRING_LEGACY = "legacy";
|
|
static const std::string OUTPUT_TYPE_STRING_P2SH_SEGWIT = "p2sh-segwit";
|
|
static const std::string OUTPUT_TYPE_STRING_BECH32 = "bech32";
|
|
|
|
OutputType ParseOutputType(const std::string& type, OutputType default_type)
|
|
{
|
|
if (type.empty()) {
|
|
return default_type;
|
|
} else if (type == OUTPUT_TYPE_STRING_LEGACY) {
|
|
return OUTPUT_TYPE_LEGACY;
|
|
} else if (type == OUTPUT_TYPE_STRING_P2SH_SEGWIT) {
|
|
return OUTPUT_TYPE_P2SH_SEGWIT;
|
|
} else if (type == OUTPUT_TYPE_STRING_BECH32) {
|
|
return OUTPUT_TYPE_BECH32;
|
|
} else {
|
|
return OUTPUT_TYPE_NONE;
|
|
}
|
|
}
|
|
|
|
const std::string& FormatOutputType(OutputType type)
|
|
{
|
|
switch (type) {
|
|
case OUTPUT_TYPE_LEGACY: return OUTPUT_TYPE_STRING_LEGACY;
|
|
case OUTPUT_TYPE_P2SH_SEGWIT: return OUTPUT_TYPE_STRING_P2SH_SEGWIT;
|
|
case OUTPUT_TYPE_BECH32: return OUTPUT_TYPE_STRING_BECH32;
|
|
default: assert(false);
|
|
}
|
|
}
|
|
|
|
void CWallet::LearnRelatedScripts(const CPubKey& key, OutputType type)
|
|
{
|
|
if (key.IsCompressed() && (type == OUTPUT_TYPE_P2SH_SEGWIT || type == OUTPUT_TYPE_BECH32)) {
|
|
CTxDestination witdest = WitnessV0KeyHash(key.GetID());
|
|
CScript witprog = GetScriptForDestination(witdest);
|
|
// Make sure the resulting program is solvable.
|
|
assert(IsSolvable(*this, witprog));
|
|
AddCScript(witprog);
|
|
}
|
|
}
|
|
|
|
void CWallet::LearnAllRelatedScripts(const CPubKey& key)
|
|
{
|
|
// OUTPUT_TYPE_P2SH_SEGWIT always adds all necessary scripts for all types.
|
|
LearnRelatedScripts(key, OUTPUT_TYPE_P2SH_SEGWIT);
|
|
}
|
|
|
|
CTxDestination GetDestinationForKey(const CPubKey& key, OutputType type)
|
|
{
|
|
switch (type) {
|
|
case OUTPUT_TYPE_LEGACY: return key.GetID();
|
|
case OUTPUT_TYPE_P2SH_SEGWIT:
|
|
case OUTPUT_TYPE_BECH32: {
|
|
if (!key.IsCompressed()) return key.GetID();
|
|
CTxDestination witdest = WitnessV0KeyHash(key.GetID());
|
|
CScript witprog = GetScriptForDestination(witdest);
|
|
if (type == OUTPUT_TYPE_P2SH_SEGWIT) {
|
|
return CScriptID(witprog);
|
|
} else {
|
|
return witdest;
|
|
}
|
|
}
|
|
default: assert(false);
|
|
}
|
|
}
|
|
|
|
std::vector<CTxDestination> GetAllDestinationsForKey(const CPubKey& key)
|
|
{
|
|
CKeyID keyid = key.GetID();
|
|
if (key.IsCompressed()) {
|
|
CTxDestination segwit = WitnessV0KeyHash(keyid);
|
|
CTxDestination p2sh = CScriptID(GetScriptForDestination(segwit));
|
|
return std::vector<CTxDestination>{std::move(keyid), std::move(p2sh), std::move(segwit)};
|
|
} else {
|
|
return std::vector<CTxDestination>{std::move(keyid)};
|
|
}
|
|
}
|
|
|
|
CTxDestination CWallet::AddAndGetDestinationForScript(const CScript& script, OutputType type)
|
|
{
|
|
// Note that scripts over 520 bytes are not yet supported.
|
|
switch (type) {
|
|
case OUTPUT_TYPE_LEGACY:
|
|
return CScriptID(script);
|
|
case OUTPUT_TYPE_P2SH_SEGWIT:
|
|
case OUTPUT_TYPE_BECH32: {
|
|
WitnessV0ScriptHash hash;
|
|
CSHA256().Write(script.data(), script.size()).Finalize(hash.begin());
|
|
CTxDestination witdest = hash;
|
|
CScript witprog = GetScriptForDestination(witdest);
|
|
// Check if the resulting program is solvable (i.e. doesn't use an uncompressed key)
|
|
if (!IsSolvable(*this, witprog)) return CScriptID(script);
|
|
// Add the redeemscript, so that P2WSH and P2SH-P2WSH outputs are recognized as ours.
|
|
AddCScript(witprog);
|
|
if (type == OUTPUT_TYPE_BECH32) {
|
|
return witdest;
|
|
} else {
|
|
return CScriptID(witprog);
|
|
}
|
|
}
|
|
default: assert(false);
|
|
}
|
|
}
|