1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
10 #include "ui_interface.h"
13 #include "coincontrol.h"
14 #include <boost/algorithm/string/replace.hpp>
17 extern int nStakeMaxAge;
19 //////////////////////////////////////////////////////////////////////////////
24 struct CompareValueOnly
26 bool operator()(const pair<int64, pair<const CWalletTx*, unsigned int> >& t1,
27 const pair<int64, pair<const CWalletTx*, unsigned int> >& t2) const
29 return t1.first < t2.first;
33 CPubKey CWallet::GenerateNewKey()
35 bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
39 key.MakeNewKey(fCompressed);
41 // Compressed public keys were introduced in version 0.6.0
43 SetMinVersion(FEATURE_COMPRPUBKEY);
45 CPubKey pubkey = key.GetPubKey();
47 // Create new metadata
48 int64 nCreationTime = GetTime();
49 mapKeyMetadata[pubkey.GetID()] = CKeyMetadata(nCreationTime);
50 if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
51 nTimeFirstKey = nCreationTime;
54 throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
55 return key.GetPubKey();
58 bool CWallet::AddKey(const CKey& key)
60 CPubKey pubkey = key.GetPubKey();
62 if (!CCryptoKeyStore::AddKey(key))
67 return CWalletDB(strWalletFile).WriteKey(pubkey, key.GetPrivKey(), mapKeyMetadata[pubkey.GetID()]);
71 bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
73 if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
79 if (pwalletdbEncryption)
80 return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
82 return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
87 bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
89 if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey))
90 nTimeFirstKey = meta.nCreateTime;
92 mapKeyMetadata[pubkey.GetID()] = meta;
96 bool CWallet::AddCScript(const CScript& redeemScript)
98 if (!CCryptoKeyStore::AddCScript(redeemScript))
102 return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
105 // ppcoin: optional setting to unlock wallet for block minting only;
106 // serves to disable the trivial sendmoney when OS account compromised
107 bool fWalletUnlockMintOnly = false;
109 bool CWallet::Unlock(const SecureString& strWalletPassphrase)
115 CKeyingMaterial vMasterKey;
119 BOOST_FOREACH(const MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
121 if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
123 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
125 if (CCryptoKeyStore::Unlock(vMasterKey))
132 bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
134 bool fWasLocked = IsLocked();
141 CKeyingMaterial vMasterKey;
142 BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
144 if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
146 if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
148 if (CCryptoKeyStore::Unlock(vMasterKey))
150 int64 nStartTime = GetTimeMillis();
151 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
152 pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));
154 nStartTime = GetTimeMillis();
155 crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
156 pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
158 if (pMasterKey.second.nDeriveIterations < 25000)
159 pMasterKey.second.nDeriveIterations = 25000;
161 printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
163 if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
165 if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
167 CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
178 void CWallet::SetBestChain(const CBlockLocator& loc)
180 CWalletDB walletdb(strWalletFile);
181 walletdb.WriteBestBlock(loc);
184 // This class implements an addrIncoming entry that causes pre-0.4
185 // clients to crash on startup if reading a private-key-encrypted wallet.
186 class CCorruptAddress
191 if (nType & SER_DISK)
196 bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
198 if (nWalletVersion >= nVersion)
201 // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
202 if (fExplicit && nVersion > nWalletMaxVersion)
203 nVersion = FEATURE_LATEST;
205 nWalletVersion = nVersion;
207 if (nVersion > nWalletMaxVersion)
208 nWalletMaxVersion = nVersion;
212 CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
213 if (nWalletVersion >= 40000)
215 // Versions prior to 0.4.0 did not support the "minversion" record.
216 // Use a CCorruptAddress to make them crash instead.
217 CCorruptAddress corruptAddress;
218 pwalletdb->WriteSetting("addrIncoming", corruptAddress);
220 if (nWalletVersion > 40000)
221 pwalletdb->WriteMinVersion(nWalletVersion);
229 bool CWallet::SetMaxVersion(int nVersion)
231 // cannot downgrade below current version
232 if (nWalletVersion > nVersion)
235 nWalletMaxVersion = nVersion;
240 set<uint256> CWallet::GetConflicts(const uint256& txid) const
245 std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid);
246 if (it == mapWallet.end())
248 const CWalletTx& wtx = it->second;
250 std::pair<TxConflicts::const_iterator, TxConflicts::const_iterator> range;
252 BOOST_FOREACH(const CTxIn& txin, wtx.vin)
254 range = mapTxConflicts.equal_range(txin.prevout);
255 for (TxConflicts::const_iterator it = range.first; it != range.second; ++it)
256 result.insert(it->second);
261 void CWallet::SyncMetaData(pair<TxConflicts::iterator, TxConflicts::iterator> range)
263 // We want all the wallet transactions in range to have the same metadata as
264 // the oldest (smallest nOrderPos).
265 // So: find smallest nOrderPos:
267 int nMinOrderPos = std::numeric_limits<int>::max();
268 const CWalletTx* copyFrom = NULL;
269 for (TxConflicts::iterator it = range.first; it != range.second; ++it)
271 const uint256& hash = it->second;
272 int n = mapWallet[hash].nOrderPos;
273 if (n < nMinOrderPos)
276 copyFrom = &mapWallet[hash];
279 // Now copy data from copyFrom to rest:
280 for (TxConflicts::iterator it = range.first; it != range.second; ++it)
282 const uint256& hash = it->second;
283 CWalletTx* copyTo = &mapWallet[hash];
284 if (copyFrom == copyTo) continue;
285 copyTo->mapValue = copyFrom->mapValue;
286 copyTo->vOrderForm = copyFrom->vOrderForm;
287 // fTimeReceivedIsTxTime not copied on purpose
288 // nTimeReceived not copied on purpose
289 copyTo->nTimeSmart = copyFrom->nTimeSmart;
290 copyTo->fFromMe = copyFrom->fFromMe;
291 copyTo->strFromAccount = copyFrom->strFromAccount;
292 // vfSpent not copied on purpose
293 // nOrderPos not copied on purpose
294 // cached members not copied on purpose
298 void CWallet::AddToConflicts(const uint256& wtxhash)
300 assert(mapWallet.count(wtxhash));
301 CWalletTx& thisTx = mapWallet[wtxhash];
302 if (thisTx.IsCoinBase())
305 BOOST_FOREACH(const CTxIn& txin, thisTx.vin)
307 mapTxConflicts.insert(make_pair(txin.prevout, wtxhash));
309 pair<TxConflicts::iterator, TxConflicts::iterator> range;
310 range = mapTxConflicts.equal_range(txin.prevout);
311 if (range.first != range.second)
316 bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
321 CKeyingMaterial vMasterKey;
322 RandAddSeedPerfmon();
324 vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
325 RAND_bytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
327 CMasterKey kMasterKey(nDerivationMethodIndex);
329 RandAddSeedPerfmon();
330 kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
331 RAND_bytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
334 int64 nStartTime = GetTimeMillis();
335 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
336 kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
338 nStartTime = GetTimeMillis();
339 crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
340 kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
342 if (kMasterKey.nDeriveIterations < 25000)
343 kMasterKey.nDeriveIterations = 25000;
345 printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
347 if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
349 if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
354 mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
357 pwalletdbEncryption = new CWalletDB(strWalletFile);
358 if (!pwalletdbEncryption->TxnBegin())
360 pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
363 if (!EncryptKeys(vMasterKey))
366 pwalletdbEncryption->TxnAbort();
367 exit(1); //We now probably have half of our keys encrypted in memory, and half not...die and let the user reload their unencrypted wallet.
370 // Encryption was introduced in version 0.4.0
371 SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
375 if (!pwalletdbEncryption->TxnCommit())
376 exit(1); //We now have keys encrypted in memory, but no on disk...die to avoid confusion and let the user reload their unencrypted wallet.
378 delete pwalletdbEncryption;
379 pwalletdbEncryption = NULL;
383 Unlock(strWalletPassphrase);
387 // Need to completely rewrite the wallet file; if we don't, bdb might keep
388 // bits of the unencrypted private key in slack space in the database file.
389 CDB::Rewrite(strWalletFile);
392 NotifyStatusChanged(this);
397 int64 CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
399 int64 nRet = nOrderPosNext++;
401 pwalletdb->WriteOrderPosNext(nOrderPosNext);
403 CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext);
408 CWallet::TxItems CWallet::OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount)
410 CWalletDB walletdb(strWalletFile);
412 // First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
415 // Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
416 // would make this much faster for applications that do this a lot.
417 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
419 CWalletTx* wtx = &((*it).second);
420 txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
423 walletdb.ListAccountCreditDebit(strAccount, acentries);
424 BOOST_FOREACH(CAccountingEntry& entry, acentries)
426 txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
432 void CWallet::WalletUpdateSpent(const CTransaction &tx, bool fBlock)
434 // Anytime a signature is successfully verified, it's proof the outpoint is spent.
435 // Update the wallet spent flag if it doesn't know due to wallet.dat being
436 // restored from backup or the user making copies of wallet.dat.
439 BOOST_FOREACH(const CTxIn& txin, tx.vin)
441 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
442 if (mi != mapWallet.end())
444 CWalletTx& wtx = (*mi).second;
445 if (txin.prevout.n >= wtx.vout.size())
446 printf("WalletUpdateSpent: bad wtx %s\n", wtx.GetHash().ToString().c_str());
447 else if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
449 printf("WalletUpdateSpent found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
450 wtx.MarkSpent(txin.prevout.n);
452 NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
459 uint256 hash = tx.GetHash();
460 map<uint256, CWalletTx>::iterator mi = mapWallet.find(hash);
461 CWalletTx& wtx = (*mi).second;
463 BOOST_FOREACH(const CTxOut& txout, tx.vout)
467 wtx.MarkUnspent(&txout - &tx.vout[0]);
469 NotifyTransactionChanged(this, hash, CT_UPDATED);
476 void CWallet::MarkDirty()
480 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
481 item.second.MarkDirty();
485 bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
487 uint256 hash = wtxIn.GetHash();
490 mapWallet[hash] = wtxIn;
491 AddToConflicts(hash);
496 // Inserts only if not already there, returns tx inserted or tx found
497 pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
498 CWalletTx& wtx = (*ret.first).second;
499 wtx.BindWallet(this);
500 bool fInsertedNew = ret.second;
503 wtx.nTimeReceived = GetAdjustedTime();
504 wtx.nOrderPos = IncOrderPosNext();
506 wtx.nTimeSmart = wtx.nTimeReceived;
507 if (wtxIn.hashBlock != 0)
509 if (mapBlockIndex.count(wtxIn.hashBlock))
511 unsigned int latestNow = wtx.nTimeReceived;
512 unsigned int latestEntry = 0;
514 // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
515 int64 latestTolerated = latestNow + 300;
516 std::list<CAccountingEntry> acentries;
517 TxItems txOrdered = OrderedTxItems(acentries);
518 for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
520 CWalletTx *const pwtx = (*it).second.first;
523 CAccountingEntry *const pacentry = (*it).second.second;
527 nSmartTime = pwtx->nTimeSmart;
529 nSmartTime = pwtx->nTimeReceived;
532 nSmartTime = pacentry->nTime;
533 if (nSmartTime <= latestTolerated)
535 latestEntry = nSmartTime;
536 if (nSmartTime > latestNow)
537 latestNow = nSmartTime;
543 unsigned int& blocktime = mapBlockIndex[wtxIn.hashBlock]->nTime;
544 wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
547 printf("AddToWallet() : found %s in block %s not in index\n",
548 hash.ToString().c_str(),
549 wtxIn.hashBlock.ToString().c_str());
551 AddToConflicts(hash);
554 bool fUpdated = false;
558 if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
560 wtx.hashBlock = wtxIn.hashBlock;
563 if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
565 wtx.vMerkleBranch = wtxIn.vMerkleBranch;
566 wtx.nIndex = wtxIn.nIndex;
569 if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
571 wtx.fFromMe = wtxIn.fFromMe;
574 fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
578 printf("AddToWallet %s %s%s\n", hash.ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
581 if (fInsertedNew || fUpdated)
582 if (!wtx.WriteToDisk())
585 // If default receiving address gets used, replace it with a new one
586 CScript scriptDefaultKey;
587 scriptDefaultKey.SetDestination(vchDefaultKey.GetID());
588 BOOST_FOREACH(const CTxOut& txout, wtx.vout)
590 if (txout.scriptPubKey == scriptDefaultKey)
592 CPubKey newDefaultKey;
593 if (GetKeyFromPool(newDefaultKey, false))
595 SetDefaultKey(newDefaultKey);
596 SetAddressBookName(vchDefaultKey.GetID(), "");
601 // since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
602 WalletUpdateSpent(wtx, (wtxIn.hashBlock != 0));
604 // Notify UI of new or updated transaction
605 NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
607 // notify an external script when a wallet transaction comes in or is updated
608 std::string strCmd = GetArg("-walletnotify", "");
610 if ( !strCmd.empty())
612 boost::replace_all(strCmd, "%s", hash.GetHex());
613 boost::thread t(runCommand, strCmd); // thread runs free
620 // Add a transaction to the wallet, or update it.
621 // pblock is optional, but should be provided if the transaction is known to be in a block.
622 // If fUpdate is true, existing transactions will be updated.
623 bool CWallet::AddToWalletIfInvolvingMe(const uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fFindBlock)
627 bool fExisted = mapWallet.count(hash);
628 if (fExisted && !fUpdate) return false;
629 if (fExisted || IsMine(tx) || IsFromMe(tx))
631 CWalletTx wtx(this,tx);
632 // Get merkle branch if transaction was found in a block
634 wtx.SetMerkleBranch(pblock);
635 return AddToWallet(wtx);
638 WalletUpdateSpent(tx);
643 bool CWallet::EraseFromWallet(uint256 hash)
649 if (mapWallet.erase(hash))
650 CWalletDB(strWalletFile).EraseTx(hash);
656 bool CWallet::IsMine(const CTxIn &txin) const
660 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
661 if (mi != mapWallet.end())
663 const CWalletTx& prev = (*mi).second;
664 if (txin.prevout.n < prev.vout.size())
665 if (IsMine(prev.vout[txin.prevout.n]))
672 int64 CWallet::GetDebit(const CTxIn &txin) const
676 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
677 if (mi != mapWallet.end())
679 const CWalletTx& prev = (*mi).second;
680 if (txin.prevout.n < prev.vout.size())
681 if (IsMine(prev.vout[txin.prevout.n]))
682 return prev.vout[txin.prevout.n].nValue;
688 bool CWallet::IsChange(const CTxOut& txout) const
690 CTxDestination address;
692 // TODO: fix handling of 'change' outputs. The assumption is that any
693 // payment to a TX_PUBKEYHASH that is mine but isn't in the address book
694 // is change. That assumption is likely to break when we implement multisignature
695 // wallets that return change back into a multi-signature-protected address;
696 // a better way of identifying which outputs are 'the send' and which are
697 // 'the change' will need to be implemented (maybe extend CWalletTx to remember
698 // which output, if any, was change).
699 if (ExtractDestination(txout.scriptPubKey, address) && ::IsMine(*this, address))
702 if (!mapAddressBook.count(address))
708 int64 CWalletTx::GetTxTime() const
710 int64 n = nTimeSmart;
711 return n ? n : nTimeReceived;
714 int CWalletTx::GetRequestCount() const
716 // Returns -1 if it wasn't being tracked
719 LOCK(pwallet->cs_wallet);
720 if (IsCoinBase() || IsCoinStake())
725 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
726 if (mi != pwallet->mapRequestCount.end())
727 nRequests = (*mi).second;
732 // Did anyone request this transaction?
733 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
734 if (mi != pwallet->mapRequestCount.end())
736 nRequests = (*mi).second;
738 // How about the block it's in?
739 if (nRequests == 0 && hashBlock != 0)
741 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
742 if (mi != pwallet->mapRequestCount.end())
743 nRequests = (*mi).second;
745 nRequests = 1; // If it's in someone else's block it must have got out
753 void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<CTxDestination, int64> >& listReceived,
754 list<pair<CTxDestination, int64> >& listSent, int64& nFee, string& strSentAccount) const
756 nGeneratedImmature = nGeneratedMature = nFee = 0;
757 listReceived.clear();
759 strSentAccount = strFromAccount;
761 if (IsCoinBase() || IsCoinStake())
763 if (GetBlocksToMaturity() > 0)
764 nGeneratedImmature = pwallet->GetCredit(*this);
766 nGeneratedMature = GetCredit();
771 int64 nDebit = GetDebit();
772 if (nDebit > 0) // debit>0 means we signed/sent this transaction
774 int64 nValueOut = GetValueOut();
775 nFee = nDebit - nValueOut;
779 BOOST_FOREACH(const CTxOut& txout, vout)
781 CTxDestination address;
782 vector<unsigned char> vchPubKey;
783 if (!ExtractDestination(txout.scriptPubKey, address))
785 printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
786 this->GetHash().ToString().c_str());
789 // Don't report 'change' txouts
790 if (nDebit > 0 && pwallet->IsChange(txout))
794 listSent.push_back(make_pair(address, txout.nValue));
796 if (pwallet->IsMine(txout))
797 listReceived.push_back(make_pair(address, txout.nValue));
802 void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
803 int64& nSent, int64& nFee) const
805 nGenerated = nReceived = nSent = nFee = 0;
807 int64 allGeneratedImmature, allGeneratedMature, allFee;
808 allGeneratedImmature = allGeneratedMature = allFee = 0;
809 string strSentAccount;
810 list<pair<CTxDestination, int64> > listReceived;
811 list<pair<CTxDestination, int64> > listSent;
812 GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
814 if (strAccount == "")
815 nGenerated = allGeneratedMature;
816 if (strAccount == strSentAccount)
818 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& s, listSent)
823 LOCK(pwallet->cs_wallet);
824 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& r, listReceived)
826 if (pwallet->mapAddressBook.count(r.first))
828 map<CTxDestination, string>::const_iterator mi = pwallet->mapAddressBook.find(r.first);
829 if (mi != pwallet->mapAddressBook.end() && (*mi).second == strAccount)
830 nReceived += r.second;
832 else if (strAccount.empty())
834 nReceived += r.second;
840 void CWalletTx::AddSupportingTransactions()
844 const int COPY_DEPTH = 3;
845 if (SetMerkleBranch() < COPY_DEPTH)
847 vector<uint256> vWorkQueue;
848 BOOST_FOREACH(const CTxIn& txin, vin)
849 vWorkQueue.push_back(txin.prevout.hash);
852 LOCK(pwallet->cs_wallet);
853 map<uint256, const CMerkleTx*> mapWalletPrev;
854 set<uint256> setAlreadyDone;
855 for (unsigned int i = 0; i < vWorkQueue.size(); i++)
857 uint256 hash = vWorkQueue[i];
858 if (setAlreadyDone.count(hash))
860 setAlreadyDone.insert(hash);
863 map<uint256, CWalletTx>::const_iterator mi = pwallet->mapWallet.find(hash);
864 if (mi != pwallet->mapWallet.end())
867 BOOST_FOREACH(const CMerkleTx& txWalletPrev, (*mi).second.vtxPrev)
868 mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;
870 else if (mapWalletPrev.count(hash))
872 tx = *mapWalletPrev[hash];
875 int nDepth = tx.SetMerkleBranch();
876 vtxPrev.push_back(tx);
878 if (nDepth < COPY_DEPTH)
880 BOOST_FOREACH(const CTxIn& txin, tx.vin)
881 vWorkQueue.push_back(txin.prevout.hash);
887 reverse(vtxPrev.begin(), vtxPrev.end());
890 bool CWalletTx::WriteToDisk()
892 return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
895 // Scan the block chain (starting in pindexStart) for transactions
896 // from or to us. If fUpdate is true, found transactions that already
897 // exist in the wallet will be updated.
898 int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
902 CBlockIndex* pindex = pindexStart;
908 block.ReadFromDisk(pindex, true);
909 BOOST_FOREACH(CTransaction& tx, block.vtx)
911 if (AddToWalletIfInvolvingMe(tx.GetHash(), tx, &block, fUpdate))
914 pindex = pindex->pnext;
920 void CWallet::ReacceptWalletTransactions()
927 bool fMissing = false;
928 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
930 CWalletTx& wtx = item.second;
931 if ((wtx.IsCoinBase() && wtx.IsSpent(0)) || (wtx.IsCoinStake() && wtx.IsSpent(1)))
935 bool fUpdated = false;
936 bool fNotFound = pcoinsTip->GetCoins(wtx.GetHash(), coins);
937 if (!fNotFound || wtx.GetDepthInMainChain() > 0)
939 // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
940 for (unsigned int i = 0; i < wtx.vout.size(); i++)
944 if ((i >= coins.vout.size() || coins.vout[i].IsNull()) && IsMine(wtx.vout[i]))
953 printf("ReacceptWalletTransactions found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
960 // Re-accept any txes of ours that aren't already in a block
961 if (!(wtx.IsCoinBase() || wtx.IsCoinStake()))
962 wtx.AcceptWalletTransaction(false);
967 // TODO: optimize this to scan just part of the block chain?
968 if (ScanForWalletTransactions(pindexGenesisBlock))
969 fRepeat = true; // Found missing transactions: re-do re-accept.
974 set<uint256> CWalletTx::GetConflicts() const
979 uint256 myHash = GetHash();
980 result = pwallet->GetConflicts(myHash);
981 result.erase(myHash);
986 void CWalletTx::RelayWalletTransaction()
988 CCoinsViewCache& coins = *pcoinsTip;
989 BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
991 if (!(tx.IsCoinBase() || tx.IsCoinStake()))
993 uint256 hash = tx.GetHash();
994 if (!coins.HaveCoins(hash))
995 RelayTransaction((CTransaction)tx, hash);
998 if (!(IsCoinBase() || IsCoinStake()))
1000 uint256 hash = GetHash();
1001 if (!coins.HaveCoins(hash))
1003 printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
1004 RelayTransaction((CTransaction)*this, hash);
1009 void CWallet::ResendWalletTransactions(bool fForce)
1013 // Do this infrequently and randomly to avoid giving away
1014 // that these are our transactions.
1015 static int64 nNextTime;
1016 if (GetTime() < nNextTime)
1018 bool fFirst = (nNextTime == 0);
1019 nNextTime = GetTime() + GetRand(30 * 60);
1023 // Only do it if there's been a new block since last time
1024 static int64 nLastTime;
1025 if (nTimeBestReceived < nLastTime)
1027 nLastTime = GetTime();
1030 // Rebroadcast any of our txes that aren't in a block yet
1031 printf("ResendWalletTransactions()\n");
1034 // Sort them in chronological order
1035 multimap<unsigned int, CWalletTx*> mapSorted;
1036 BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
1038 CWalletTx& wtx = item.second;
1039 // Don't rebroadcast until it's had plenty of time that
1040 // it should have gotten in already by now.
1041 if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)
1042 mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
1044 BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
1046 CWalletTx& wtx = *item.second;
1047 wtx.RelayWalletTransaction();
1057 //////////////////////////////////////////////////////////////////////////////
1063 int64 CWallet::GetBalance() const
1068 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1070 const CWalletTx* pcoin = &(*it).second;
1071 if (pcoin->IsTrusted())
1072 nTotal += pcoin->GetAvailableCredit();
1079 int64 CWallet::GetUnconfirmedBalance() const
1084 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1086 const CWalletTx* pcoin = &(*it).second;
1087 if (!pcoin->IsFinal() || (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0))
1088 nTotal += pcoin->GetAvailableCredit();
1094 int64 CWallet::GetImmatureBalance() const
1099 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1101 const CWalletTx& pcoin = (*it).second;
1102 if (pcoin.IsCoinBase() && pcoin.GetBlocksToMaturity() > 0 && pcoin.IsInMainChain())
1103 nTotal += GetCredit(pcoin);
1109 // populate vCoins with vector of spendable COutputs
1110 void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl) const
1116 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1118 const CWalletTx* pcoin = &(*it).second;
1120 if (!pcoin->IsFinal()) {
1124 if (fOnlyConfirmed && !pcoin->IsTrusted()) {
1128 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0) {
1132 int nDepth = pcoin->GetDepthInMainChain();
1137 if(pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0) {
1141 for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
1142 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue &&
1143 (!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
1144 vCoins.push_back(COutput(pcoin, i, nDepth));
1150 void CWallet::AvailableCoinsMinConf(vector<COutput>& vCoins, int nConf) const
1155 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1157 const CWalletTx* pcoin = &(*it).second;
1159 if (!pcoin->IsFinal())
1162 if(pcoin->GetDepthInMainChain() < nConf)
1165 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
1166 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue >= nMinimumInputValue)
1167 vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
1172 static void ApproximateBestSubset(vector<pair<int64, pair<const CWalletTx*,unsigned int> > >vValue, int64 nTotalLower, int64 nTargetValue,
1173 vector<char>& vfBest, int64& nBest, int iterations = 1000)
1175 vector<char> vfIncluded;
1177 vfBest.assign(vValue.size(), true);
1178 nBest = nTotalLower;
1180 for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++)
1182 vfIncluded.assign(vValue.size(), false);
1184 bool fReachedTarget = false;
1185 for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
1187 for (unsigned int i = 0; i < vValue.size(); i++)
1189 if (nPass == 0 ? rand() % 2 : !vfIncluded[i])
1191 nTotal += vValue[i].first;
1192 vfIncluded[i] = true;
1193 if (nTotal >= nTargetValue)
1195 fReachedTarget = true;
1199 vfBest = vfIncluded;
1201 nTotal -= vValue[i].first;
1202 vfIncluded[i] = false;
1210 // ppcoin: total coins staked (non-spendable until maturity)
1211 int64 CWallet::GetStake() const
1215 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1217 const CWalletTx* pcoin = &(*it).second;
1218 if (pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1219 nTotal += CWallet::GetCredit(*pcoin);
1224 int64 CWallet::GetNewMint() const
1228 for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
1230 const CWalletTx* pcoin = &(*it).second;
1231 if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
1232 nTotal += CWallet::GetCredit(*pcoin);
1237 bool CWallet::SelectCoinsMinConf(int64 nTargetValue, unsigned int nSpendTime, int nConfMine, int nConfTheirs, vector<COutput> vCoins, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
1239 setCoinsRet.clear();
1242 // List of values less than target
1243 pair<int64, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
1244 coinLowestLarger.first = std::numeric_limits<int64>::max();
1245 coinLowestLarger.second.first = NULL;
1246 vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
1247 int64 nTotalLower = 0;
1249 random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
1251 BOOST_FOREACH(COutput output, vCoins)
1253 const CWalletTx *pcoin = output.tx;
1255 if (output.nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
1260 // Follow the timestamp rules
1261 if (pcoin->nTime > nSpendTime)
1264 int64 n = pcoin->vout[i].nValue;
1266 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1268 if (n == nTargetValue)
1270 setCoinsRet.insert(coin.second);
1271 nValueRet += coin.first;
1274 else if (n < nTargetValue + CENT)
1276 vValue.push_back(coin);
1279 else if (n < coinLowestLarger.first)
1281 coinLowestLarger = coin;
1285 if (nTotalLower == nTargetValue)
1287 for (unsigned int i = 0; i < vValue.size(); ++i)
1289 setCoinsRet.insert(vValue[i].second);
1290 nValueRet += vValue[i].first;
1295 if (nTotalLower < nTargetValue)
1297 if (coinLowestLarger.second.first == NULL)
1299 setCoinsRet.insert(coinLowestLarger.second);
1300 nValueRet += coinLowestLarger.first;
1304 // Solve subset sum by stochastic approximation
1305 sort(vValue.rbegin(), vValue.rend(), CompareValueOnly());
1306 vector<char> vfBest;
1309 ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest, 1000);
1310 if (nBest != nTargetValue && nTotalLower >= nTargetValue + CENT)
1311 ApproximateBestSubset(vValue, nTotalLower, nTargetValue + CENT, vfBest, nBest, 1000);
1313 // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
1314 // or the next bigger coin is closer), return the bigger coin
1315 if (coinLowestLarger.second.first &&
1316 ((nBest != nTargetValue && nBest < nTargetValue + CENT) || coinLowestLarger.first <= nBest))
1318 setCoinsRet.insert(coinLowestLarger.second);
1319 nValueRet += coinLowestLarger.first;
1322 for (unsigned int i = 0; i < vValue.size(); i++)
1325 setCoinsRet.insert(vValue[i].second);
1326 nValueRet += vValue[i].first;
1329 if (fDebug && GetBoolArg("-printpriority"))
1332 printf("SelectCoins() best subset: ");
1333 for (unsigned int i = 0; i < vValue.size(); i++)
1335 printf("%s ", FormatMoney(vValue[i].first).c_str());
1336 printf("total %s\n", FormatMoney(nBest).c_str());
1343 bool CWallet::SelectCoins(int64 nTargetValue, unsigned int nSpendTime, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet, const CCoinControl* coinControl) const
1345 vector<COutput> vCoins;
1346 AvailableCoins(vCoins, true, coinControl);
1348 // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
1349 if (coinControl && coinControl->HasSelected())
1351 BOOST_FOREACH(const COutput& out, vCoins)
1353 nValueRet += out.tx->vout[out.i].nValue;
1354 setCoinsRet.insert(make_pair(out.tx, out.i));
1356 return (nValueRet >= nTargetValue);
1359 return (SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 6, vCoins, setCoinsRet, nValueRet) ||
1360 SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 1, vCoins, setCoinsRet, nValueRet) ||
1361 SelectCoinsMinConf(nTargetValue, nSpendTime, 0, 1, vCoins, setCoinsRet, nValueRet));
1364 // Select some coins without random shuffle or best subset approximation
1365 bool CWallet::SelectCoinsSimple(int64 nTargetValue, unsigned int nSpendTime, int nMinConf, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
1367 vector<COutput> vCoins;
1368 AvailableCoinsMinConf(vCoins, nMinConf);
1370 setCoinsRet.clear();
1373 BOOST_FOREACH(COutput output, vCoins)
1375 const CWalletTx *pcoin = output.tx;
1378 // Stop if we've chosen enough inputs
1379 if (nValueRet >= nTargetValue)
1382 // Follow the timestamp rules
1383 if (pcoin->nTime > nSpendTime)
1386 int64 n = pcoin->vout[i].nValue;
1388 pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
1390 if (n >= nTargetValue)
1392 // If input value is greater or equal to target then simply insert
1393 // it into the current subset and exit
1394 setCoinsRet.insert(coin.second);
1395 nValueRet += coin.first;
1398 else if (n < nTargetValue + CENT)
1400 setCoinsRet.insert(coin.second);
1401 nValueRet += coin.first;
1408 bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1411 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1417 if (vecSend.empty() || nValue < 0)
1420 wtxNew.BindWallet(this);
1423 LOCK2(cs_main, cs_wallet);
1425 nFeeRet = nTransactionFee;
1429 wtxNew.vout.clear();
1430 wtxNew.fFromMe = true;
1432 int64 nTotalValue = nValue + nFeeRet;
1433 double dPriority = 0;
1434 // vouts to the payees
1435 BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
1436 wtxNew.vout.push_back(CTxOut(s.second, s.first));
1438 // Choose coins to use
1439 set<pair<const CWalletTx*,unsigned int> > setCoins;
1441 if (!SelectCoins(nTotalValue, wtxNew.nTime, setCoins, nValueIn, coinControl))
1443 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1445 int64 nCredit = pcoin.first->vout[pcoin.second].nValue;
1446 dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
1449 int64 nChange = nValueIn - nValue - nFeeRet;
1450 // if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
1451 // or until nChange becomes zero
1452 // NOTE: this depends on the exact behaviour of GetMinFee
1453 if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
1455 int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
1456 nChange -= nMoveToFee;
1457 nFeeRet += nMoveToFee;
1460 // sub-cent change is moved to fee
1461 if (nChange > 0 && nChange < MIN_TXOUT_AMOUNT)
1469 // Fill a vout to ourself
1470 // TODO: pass in scriptChange instead of reservekey so
1471 // change transaction isn't always pay-to-bitcoin-address
1472 CScript scriptChange;
1474 // coin control: send change to custom address
1475 if (coinControl && !boost::get<CNoDestination>(&coinControl->destChange))
1476 scriptChange.SetDestination(coinControl->destChange);
1478 // no coin control: send change to newly generated address
1481 // Note: We use a new key here to keep it from being obvious which side is the change.
1482 // The drawback is that by not reusing a previous key, the change may be lost if a
1483 // backup is restored, if the backup doesn't have the new private key for the change.
1484 // If we reused the old key, it would be possible to add code to look for and
1485 // rediscover unknown transactions that were written with keys of ours to recover
1486 // post-backup change.
1488 // Reserve a new key pair from key pool
1489 CPubKey vchPubKey = reservekey.GetReservedKey();
1491 scriptChange.SetDestination(vchPubKey.GetID());
1494 // Insert change txn at random position:
1495 vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size());
1496 wtxNew.vout.insert(position, CTxOut(nChange, scriptChange));
1499 reservekey.ReturnKey();
1502 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1503 wtxNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
1507 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
1508 if (!SignSignature(*this, *coin.first, wtxNew, nIn++))
1512 unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK, PROTOCOL_VERSION);
1513 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1515 dPriority /= nBytes;
1517 // Check that enough fee is included
1518 int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
1519 int64 nMinFee = wtxNew.GetMinFee(1, false, GMF_SEND, nBytes);
1520 if (nFeeRet < max(nPayFee, nMinFee))
1522 nFeeRet = max(nPayFee, nMinFee);
1526 // Fill vtxPrev by copying from previous transactions vtxPrev
1527 wtxNew.AddSupportingTransactions();
1528 wtxNew.fTimeReceivedIsTxTime = true;
1537 bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet, const CCoinControl* coinControl)
1539 vector< pair<CScript, int64> > vecSend;
1540 vecSend.push_back(make_pair(scriptPubKey, nValue));
1541 return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet, coinControl);
1544 // NovaCoin: get current stake weight
1545 bool CWallet::GetStakeWeight(const CKeyStore& keystore, uint64& nMinWeight, uint64& nMaxWeight, uint64& nWeight)
1547 // Choose coins to use
1548 int64 nBalance = GetBalance();
1549 int64 nReserveBalance = 0;
1551 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1553 error("GetStakeWeight : invalid reserve balance amount");
1557 if (nBalance <= nReserveBalance)
1560 vector<const CWalletTx*> vwtxPrev;
1561 set<pair<const CWalletTx*,unsigned int> > setCoins;
1564 if (!SelectCoinsSimple(nBalance - nReserveBalance, GetTime(), nCoinbaseMaturity * 10, setCoins, nValueIn))
1567 if (setCoins.empty())
1570 CCoinsViewCache &view = *pcoinsTip;
1571 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1575 LOCK2(cs_main, cs_wallet);
1576 if (!view.GetCoinsReadOnly(pcoin.first->GetHash(), coins))
1580 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)GetTime());
1581 CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);
1583 // Weight is greater than zero
1584 if (nTimeWeight > 0)
1586 nWeight += bnCoinDayWeight.getuint64();
1589 // Weight is greater than zero, but the maximum value isn't reached yet
1590 if (nTimeWeight > 0 && nTimeWeight < nStakeMaxAge)
1592 nMinWeight += bnCoinDayWeight.getuint64();
1595 // Maximum weight was reached
1596 if (nTimeWeight == nStakeMaxAge)
1598 nMaxWeight += bnCoinDayWeight.getuint64();
1605 bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int64 nSearchInterval, CTransaction& txNew, CKey& key)
1607 // The following combine threshold is important to security
1608 // Should not be adjusted if you don't understand the consequences
1609 int64 nCombineThreshold = GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits) / 3;
1610 CBlockIndex* pindexPrev = pindexBest;
1611 CBigNum bnTargetPerCoinDay;
1612 bnTargetPerCoinDay.SetCompact(nBits);
1617 // Mark coin stake transaction
1618 CScript scriptEmpty;
1619 scriptEmpty.clear();
1620 txNew.vout.push_back(CTxOut(0, scriptEmpty));
1622 // Choose coins to use
1623 int64 nBalance = GetBalance();
1624 int64 nReserveBalance = 0;
1626 if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
1627 return error("CreateCoinStake : invalid reserve balance amount");
1629 if (nBalance <= nReserveBalance)
1632 vector<const CWalletTx*> vwtxPrev;
1633 set<pair<const CWalletTx*,unsigned int> > setCoins;
1636 // Select coins with suitable depth
1637 if (!SelectCoinsSimple(nBalance - nReserveBalance, txNew.nTime, nCoinbaseMaturity * 10, setCoins, nValueIn))
1640 if (setCoins.empty())
1644 CScript scriptPubKeyKernel;
1646 CCoinsViewCache &view = *pcoinsTip;
1647 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1651 LOCK2(cs_main, cs_wallet);
1652 if (!view.GetCoinsReadOnly(pcoin.first->GetHash(), coins))
1656 static int nMaxStakeSearchInterval = 60;
1657 if (coins.nBlockTime + nStakeMinAge > txNew.nTime - nMaxStakeSearchInterval)
1658 continue; // only count coins meeting min age requirement
1660 // Read block header
1662 unsigned int nTxPos = 0;
1664 LOCK2(cs_main, cs_wallet);
1665 CBlockIndex *pindex = FindBlockByHeight(coins.nHeight);
1667 if (!block.ReadFromDisk(pindex))
1670 BOOST_FOREACH(const CTransaction &tx, block.vtx) {
1671 if (tx.GetHash() == pcoin.first->GetHash()) {
1674 nTxPos += tx.GetSerializeSize(SER_DISK, CLIENT_VERSION);
1676 nTxPos += GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(block.vtx.size());
1680 bool fFatal = false;
1681 bool fKernelFound = false;
1682 for (unsigned int n=0; n<min(nSearchInterval,(int64)nMaxStakeSearchInterval) && !fKernelFound && !fShutdown && pindexPrev == pindexBest; n++)
1684 // Search backward in time from the given txNew timestamp
1685 // Search nSearchInterval seconds back up to nMaxStakeSearchInterval
1686 uint256 hashProofOfStake = 0, targetProofOfStake = 0;
1687 COutPoint prevoutStake = COutPoint(pcoin.first->GetHash(), pcoin.second);
1688 if (CheckStakeKernelHash(nBits, block, nTxPos, *pcoin.first, prevoutStake, txNew.nTime - n, hashProofOfStake, targetProofOfStake, fFatal, true))
1691 if (fDebug && GetBoolArg("-printcoinstake"))
1692 printf("CreateCoinStake : kernel found\n");
1693 vector<valtype> vSolutions;
1694 txnouttype whichType;
1695 CScript scriptPubKeyOut;
1696 scriptPubKeyKernel = pcoin.first->vout[pcoin.second].scriptPubKey;
1697 if (!Solver(scriptPubKeyKernel, whichType, vSolutions))
1699 if (fDebug && GetBoolArg("-printcoinstake"))
1700 printf("CreateCoinStake : failed to parse kernel\n");
1703 if (fDebug && GetBoolArg("-printcoinstake"))
1704 printf("CreateCoinStake : parsed kernel type=%d\n", whichType);
1705 if (whichType != TX_PUBKEY && whichType != TX_PUBKEYHASH)
1707 if (fDebug && GetBoolArg("-printcoinstake"))
1708 printf("CreateCoinStake : no support for kernel type=%d\n", whichType);
1709 break; // only support pay to public key and pay to address
1711 if (whichType == TX_PUBKEYHASH) // pay to address type
1713 // convert to pay to public key type
1714 if (!keystore.GetKey(uint160(vSolutions[0]), key))
1716 if (fDebug && GetBoolArg("-printcoinstake"))
1717 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1718 break; // unable to find corresponding public key
1720 scriptPubKeyOut << key.GetPubKey() << OP_CHECKSIG;
1722 if (whichType == TX_PUBKEY)
1724 valtype& vchPubKey = vSolutions[0];
1725 if (!keystore.GetKey(Hash160(vchPubKey), key))
1727 if (fDebug && GetBoolArg("-printcoinstake"))
1728 printf("CreateCoinStake : failed to get key for kernel type=%d\n", whichType);
1729 break; // unable to find corresponding public key
1732 if (key.GetPubKey() != vchPubKey)
1734 if (fDebug && GetBoolArg("-printcoinstake"))
1735 printf("CreateCoinStake : invalid key for kernel type=%d\n", whichType);
1736 break; // keys mismatch
1739 scriptPubKeyOut = scriptPubKeyKernel;
1743 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1744 nCredit += pcoin.first->vout[pcoin.second].nValue;
1745 vwtxPrev.push_back(pcoin.first);
1746 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut));
1748 if (GetWeight(block.GetBlockTime(), (int64)txNew.nTime) < nStakeMaxAge)
1749 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut)); //split stake
1750 if (fDebug && GetBoolArg("-printcoinstake"))
1751 printf("CreateCoinStake : added kernel type=%d\n", whichType);
1752 fKernelFound = true;
1757 if (fKernelFound || fShutdown)
1758 break; // if kernel is found stop searching
1761 if (nCredit == 0 || nCredit > nBalance - nReserveBalance)
1764 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
1766 // Attempt to add more inputs
1767 // Only add coins of the same key/address as kernel
1768 if (txNew.vout.size() == 2 && ((pcoin.first->vout[pcoin.second].scriptPubKey == scriptPubKeyKernel || pcoin.first->vout[pcoin.second].scriptPubKey == txNew.vout[1].scriptPubKey))
1769 && pcoin.first->GetHash() != txNew.vin[0].prevout.hash)
1771 int64 nTimeWeight = GetWeight((int64)pcoin.first->nTime, (int64)txNew.nTime);
1773 // Stop adding more inputs if already too many inputs
1774 if (txNew.vin.size() >= 100)
1776 // Stop adding more inputs if value is already pretty significant
1777 if (nCredit > nCombineThreshold)
1779 // Stop adding inputs if reached reserve limit
1780 if (nCredit + pcoin.first->vout[pcoin.second].nValue > nBalance - nReserveBalance)
1782 // Do not add additional significant input
1783 if (pcoin.first->vout[pcoin.second].nValue > nCombineThreshold)
1785 // Do not add input that is still too young
1786 if (nTimeWeight < nStakeMaxAge)
1789 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
1790 nCredit += pcoin.first->vout[pcoin.second].nValue;
1791 vwtxPrev.push_back(pcoin.first);
1795 // Calculate coin age reward
1799 if (!txNew.GetCoinAge(nCoinAge))
1800 return error("CreateCoinStake : failed to calculate coin age");
1801 nCredit += GetProofOfStakeReward(nCoinAge, nBits, txNew.nTime);
1807 // Set output amount
1808 if (txNew.vout.size() == 3)
1810 txNew.vout[1].nValue = ((nCredit - nMinFee) / 2 / CENT) * CENT;
1811 txNew.vout[2].nValue = nCredit - nMinFee - txNew.vout[1].nValue;
1814 txNew.vout[1].nValue = nCredit - nMinFee;
1818 BOOST_FOREACH(const CWalletTx* pcoin, vwtxPrev)
1820 if (!SignSignature(*this, *pcoin, txNew, nIn++))
1821 return error("CreateCoinStake : failed to sign coinstake");
1825 unsigned int nBytes = ::GetSerializeSize(txNew, SER_NETWORK, PROTOCOL_VERSION);
1826 if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
1827 return error("CreateCoinStake : exceeded coinstake size limit");
1829 // Check enough fee is paid
1830 if (nMinFee < txNew.GetMinFee() - MIN_TX_FEE)
1832 nMinFee = txNew.GetMinFee() - MIN_TX_FEE;
1833 continue; // try signing again
1837 if (fDebug && GetBoolArg("-printfee"))
1838 printf("CreateCoinStake : fee for coinstake %s\n", FormatMoney(nMinFee).c_str());
1843 // Successfully generated coinstake
1848 // Call after CreateTransaction unless you want to abort
1849 bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
1852 LOCK2(cs_main, cs_wallet);
1853 printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
1855 // This is only to keep the database open to defeat the auto-flush for the
1856 // duration of this scope. This is the only place where this optimization
1857 // maybe makes sense; please don't do it anywhere else.
1858 CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
1860 // Take key pair from key pool so it won't be used again
1861 reservekey.KeepKey();
1863 // Add tx to wallet, because if it has change it's also ours,
1864 // otherwise just for transaction history.
1865 AddToWallet(wtxNew);
1867 // Mark old coins as spent
1868 set<CWalletTx*> setCoins;
1869 BOOST_FOREACH(const CTxIn& txin, wtxNew.vin)
1871 CWalletTx &coin = mapWallet[txin.prevout.hash];
1872 coin.BindWallet(this);
1873 coin.MarkSpent(txin.prevout.n);
1875 NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
1882 // Track how many getdata requests our transaction gets
1883 mapRequestCount[wtxNew.GetHash()] = 0;
1886 if (!wtxNew.AcceptToMemoryPool())
1888 // This must not fail. The transaction has already been signed and recorded.
1889 printf("CommitTransaction() : Error: Transaction not valid");
1892 wtxNew.RelayWalletTransaction();
1900 string CWallet::SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1902 CReserveKey reservekey(this);
1907 string strError = _("Error: Wallet locked, unable to create transaction ");
1908 printf("SendMoney() : %s", strError.c_str());
1911 if (fWalletUnlockMintOnly)
1913 string strError = _("Error: Wallet unlocked for block minting only, unable to create transaction.");
1914 printf("SendMoney() : %s", strError.c_str());
1917 if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired))
1920 if (nValue + nFeeRequired > GetBalance())
1921 strError = strprintf(_("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds "), FormatMoney(nFeeRequired).c_str());
1923 strError = _("Error: Transaction creation failed ");
1924 printf("SendMoney() : %s", strError.c_str());
1928 if (fAskFee && !uiInterface.ThreadSafeAskFee(nFeeRequired, _("Sending...")))
1931 if (!CommitTransaction(wtxNew, reservekey))
1932 return _("Error: The transaction was rejected. This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
1939 string CWallet::SendMoneyToDestination(const CTxDestination& address, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
1943 return _("Invalid amount");
1944 if (nValue + nTransactionFee > GetBalance())
1945 return _("Insufficient funds");
1947 // Parse Bitcoin address
1948 CScript scriptPubKey;
1949 scriptPubKey.SetDestination(address);
1951 return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);
1957 DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
1961 fFirstRunRet = false;
1962 DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
1963 if (nLoadWalletRet == DB_NEED_REWRITE)
1965 if (CDB::Rewrite(strWalletFile, "\x04pool"))
1968 // Note: can't top-up keypool here, because wallet is locked.
1969 // User will be prompted to unlock wallet the next operation
1970 // the requires a new key.
1974 if (nLoadWalletRet != DB_LOAD_OK)
1975 return nLoadWalletRet;
1976 fFirstRunRet = !vchDefaultKey.IsValid();
1978 NewThread(ThreadFlushWalletDB, &strWalletFile);
1982 DBErrors CWallet::ZapWalletTx()
1986 DBErrors nZapWalletTxRet = CWalletDB(strWalletFile,"cr+").ZapWalletTx(this);
1987 if (nZapWalletTxRet == DB_NEED_REWRITE)
1989 if (CDB::Rewrite(strWalletFile, "\x04pool"))
1993 // Note: can't top-up keypool here, because wallet is locked.
1994 // User will be prompted to unlock wallet the next operation
1995 // the requires a new key.
1999 if (nZapWalletTxRet != DB_LOAD_OK)
2000 return nZapWalletTxRet;
2005 bool CWallet::SetAddressBookName(const CTxDestination& address, const string& strName)
2007 std::map<CTxDestination, std::string>::iterator mi = mapAddressBook.find(address);
2008 mapAddressBook[address] = strName;
2009 NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address), (mi == mapAddressBook.end()) ? CT_NEW : CT_UPDATED);
2012 return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName);
2015 bool CWallet::DelAddressBookName(const CTxDestination& address)
2017 mapAddressBook.erase(address);
2018 NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address), CT_DELETED);
2021 return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString());
2025 void CWallet::PrintWallet(const CBlock& block)
2029 if (block.IsProofOfWork() && mapWallet.count(block.vtx[0].GetHash()))
2031 CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
2032 printf(" mine: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
2034 if (block.IsProofOfStake() && mapWallet.count(block.vtx[1].GetHash()))
2036 CWalletTx& wtx = mapWallet[block.vtx[1].GetHash()];
2037 printf(" stake: %d %d %"PRI64d"", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
2044 bool CWallet::GetTransaction(const uint256 &hashTx, CWalletTx& wtx)
2048 map<uint256, CWalletTx>::iterator mi = mapWallet.find(hashTx);
2049 if (mi != mapWallet.end())
2058 bool CWallet::SetDefaultKey(const CPubKey &vchPubKey)
2062 if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey))
2065 vchDefaultKey = vchPubKey;
2069 bool GetWalletFile(CWallet* pwallet, string &strWalletFileOut)
2071 if (!pwallet->fFileBacked)
2073 strWalletFileOut = pwallet->strWalletFile;
2078 // Mark old keypool keys as used,
2079 // and generate all new keys
2081 bool CWallet::NewKeyPool()
2085 CWalletDB walletdb(strWalletFile);
2086 BOOST_FOREACH(int64 nIndex, setKeyPool)
2087 walletdb.ErasePool(nIndex);
2093 int64 nKeys = max(GetArg("-keypool", 100), (int64)0);
2094 for (int i = 0; i < nKeys; i++)
2097 walletdb.WritePool(nIndex, CKeyPool(GenerateNewKey()));
2098 setKeyPool.insert(nIndex);
2100 printf("CWallet::NewKeyPool wrote %"PRI64d" new keys\n", nKeys);
2105 bool CWallet::TopUpKeyPool(unsigned int nSize)
2113 CWalletDB walletdb(strWalletFile);
2116 unsigned int nTargetSize;
2118 nTargetSize = nSize;
2120 nTargetSize = max(GetArg("-keypool", 100), 0LL);
2122 while (setKeyPool.size() < (nTargetSize + 1))
2125 if (!setKeyPool.empty())
2126 nEnd = *(--setKeyPool.end()) + 1;
2127 if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
2128 throw runtime_error("TopUpKeyPool() : writing generated key failed");
2129 setKeyPool.insert(nEnd);
2130 printf("keypool added key %"PRI64d", size=%"PRIszu"\n", nEnd, setKeyPool.size());
2136 void CWallet::ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool)
2139 keypool.vchPubKey = CPubKey();
2146 // Get the oldest key
2147 if(setKeyPool.empty())
2150 CWalletDB walletdb(strWalletFile);
2152 nIndex = *(setKeyPool.begin());
2153 setKeyPool.erase(setKeyPool.begin());
2154 if (!walletdb.ReadPool(nIndex, keypool))
2155 throw runtime_error("ReserveKeyFromKeyPool() : read failed");
2156 if (!HaveKey(keypool.vchPubKey.GetID()))
2157 throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
2158 assert(keypool.vchPubKey.IsValid());
2159 if (fDebug && GetBoolArg("-printkeypool"))
2160 printf("keypool reserve %"PRI64d"\n", nIndex);
2164 int64 CWallet::AddReserveKey(const CKeyPool& keypool)
2167 LOCK2(cs_main, cs_wallet);
2168 CWalletDB walletdb(strWalletFile);
2170 int64 nIndex = 1 + *(--setKeyPool.end());
2171 if (!walletdb.WritePool(nIndex, keypool))
2172 throw runtime_error("AddReserveKey() : writing added key failed");
2173 setKeyPool.insert(nIndex);
2179 void CWallet::KeepKey(int64 nIndex)
2181 // Remove from key pool
2184 CWalletDB walletdb(strWalletFile);
2185 walletdb.ErasePool(nIndex);
2188 printf("keypool keep %"PRI64d"\n", nIndex);
2191 void CWallet::ReturnKey(int64 nIndex)
2193 // Return to key pool
2196 setKeyPool.insert(nIndex);
2199 printf("keypool return %"PRI64d"\n", nIndex);
2202 bool CWallet::GetKeyFromPool(CPubKey& result, bool fAllowReuse)
2208 ReserveKeyFromKeyPool(nIndex, keypool);
2211 if (fAllowReuse && vchDefaultKey.IsValid())
2213 result = vchDefaultKey;
2216 if (IsLocked()) return false;
2217 result = GenerateNewKey();
2221 result = keypool.vchPubKey;
2226 int64 CWallet::GetOldestKeyPoolTime()
2230 ReserveKeyFromKeyPool(nIndex, keypool);
2234 return keypool.nTime;
2237 std::map<CTxDestination, int64> CWallet::GetAddressBalances()
2239 map<CTxDestination, int64> balances;
2243 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2245 CWalletTx *pcoin = &walletEntry.second;
2247 if (!pcoin->IsFinal() || !pcoin->IsTrusted())
2250 if ((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetBlocksToMaturity() > 0)
2253 int nDepth = pcoin->GetDepthInMainChain();
2254 if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
2257 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2259 CTxDestination addr;
2260 if (!IsMine(pcoin->vout[i]))
2262 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, addr))
2265 int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
2267 if (!balances.count(addr))
2269 balances[addr] += n;
2277 set< set<CTxDestination> > CWallet::GetAddressGroupings()
2279 set< set<CTxDestination> > groupings;
2280 set<CTxDestination> grouping;
2282 BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
2284 CWalletTx *pcoin = &walletEntry.second;
2286 if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
2288 // group all input addresses with each other
2289 BOOST_FOREACH(CTxIn txin, pcoin->vin)
2291 CTxDestination address;
2292 if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address))
2294 grouping.insert(address);
2297 // group change with input addresses
2298 BOOST_FOREACH(CTxOut txout, pcoin->vout)
2299 if (IsChange(txout))
2301 CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
2302 CTxDestination txoutAddr;
2303 if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
2305 grouping.insert(txoutAddr);
2307 groupings.insert(grouping);
2311 // group lone addrs by themselves
2312 for (unsigned int i = 0; i < pcoin->vout.size(); i++)
2313 if (IsMine(pcoin->vout[i]))
2315 CTxDestination address;
2316 if(!ExtractDestination(pcoin->vout[i].scriptPubKey, address))
2318 grouping.insert(address);
2319 groupings.insert(grouping);
2324 set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
2325 map< CTxDestination, set<CTxDestination>* > setmap; // map addresses to the unique group containing it
2326 BOOST_FOREACH(set<CTxDestination> grouping, groupings)
2328 // make a set of all the groups hit by this new group
2329 set< set<CTxDestination>* > hits;
2330 map< CTxDestination, set<CTxDestination>* >::iterator it;
2331 BOOST_FOREACH(CTxDestination address, grouping)
2332 if ((it = setmap.find(address)) != setmap.end())
2333 hits.insert((*it).second);
2335 // merge all hit groups into a new single group and delete old groups
2336 set<CTxDestination>* merged = new set<CTxDestination>(grouping);
2337 BOOST_FOREACH(set<CTxDestination>* hit, hits)
2339 merged->insert(hit->begin(), hit->end());
2340 uniqueGroupings.erase(hit);
2343 uniqueGroupings.insert(merged);
2346 BOOST_FOREACH(CTxDestination element, *merged)
2347 setmap[element] = merged;
2350 set< set<CTxDestination> > ret;
2351 BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
2353 ret.insert(*uniqueGrouping);
2354 delete uniqueGrouping;
2360 // 1. check 'spent' consistency between wallet and coins database
2361 // 2. fix wallet spent state according to coins database
2362 // 3. remove orphaned coinstakes and coinbases from wallet
2363 void CWallet::FixSpentCoins(int& nMismatchFound, int64& nBalanceInQuestion, bool fCheckOnly)
2366 nBalanceInQuestion = 0;
2369 vector<CWalletTx*> vCoins;
2370 vCoins.reserve(mapWallet.size());
2371 for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
2372 vCoins.push_back(&(*it).second);
2374 CCoinsViewCache &view = *pcoinsTip;
2375 BOOST_FOREACH(CWalletTx* pcoin, vCoins)
2377 uint256 hash = pcoin->GetHash();
2378 if(!view.HaveCoins(hash))
2381 // Find the corresponding transaction index
2382 CCoins &coins = view.GetCoins(hash);
2384 for (unsigned int n=0; n < pcoin->vout.size(); n++)
2386 bool fUpdated = false;
2387 if (IsMine(pcoin->vout[n]))
2389 if (pcoin->IsSpent(n) && coins.IsAvailable(n))
2391 printf("FixSpentCoins found lost coin %snvc %s[%d], %s\n",
2392 FormatMoney(pcoin->vout[n].nValue).c_str(), hash.ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2394 nBalanceInQuestion += pcoin->vout[n].nValue;
2398 pcoin->MarkUnspent(n);
2399 pcoin->WriteToDisk();
2402 else if (!pcoin->IsSpent(n) && !coins.IsAvailable(n))
2404 printf("FixSpentCoins found spent coin %snvc %s[%d], %s\n",
2405 FormatMoney(pcoin->vout[n].nValue).c_str(), hash.ToString().c_str(), n, fCheckOnly? "repair not attempted" : "repairing");
2407 nBalanceInQuestion += pcoin->vout[n].nValue;
2411 pcoin->MarkSpent(n);
2412 pcoin->WriteToDisk();
2417 NotifyTransactionChanged(this, hash, CT_UPDATED);
2421 if((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetDepthInMainChain() == 0)
2425 EraseFromWallet(hash);
2426 NotifyTransactionChanged(this, hash, CT_DELETED);
2429 printf("FixSpentCoins %s orphaned generation tx %s\n", fCheckOnly ? "found" : "removed", hash.ToString().c_str());
2434 // ppcoin: disable transaction (only for coinstake)
2435 void CWallet::DisableTransaction(const CTransaction &tx)
2437 if (!tx.IsCoinStake() || !IsFromMe(tx))
2438 return; // only disconnecting coinstake requires marking input unspent
2441 BOOST_FOREACH(const CTxIn& txin, tx.vin)
2443 map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
2444 if (mi != mapWallet.end())
2446 CWalletTx& prev = (*mi).second;
2447 if (txin.prevout.n < prev.vout.size() && IsMine(prev.vout[txin.prevout.n]))
2449 prev.MarkUnspent(txin.prevout.n);
2456 CPubKey CReserveKey::GetReservedKey()
2461 pwallet->ReserveKeyFromKeyPool(nIndex, keypool);
2463 vchPubKey = keypool.vchPubKey;
2466 printf("CReserveKey::GetReservedKey(): Warning: Using default key instead of a new key, top up your keypool!");
2467 vchPubKey = pwallet->vchDefaultKey;
2470 assert(vchPubKey.IsValid());
2474 void CReserveKey::KeepKey()
2477 pwallet->KeepKey(nIndex);
2479 vchPubKey = CPubKey();
2482 void CReserveKey::ReturnKey()
2485 pwallet->ReturnKey(nIndex);
2487 vchPubKey = CPubKey();
2490 void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
2494 CWalletDB walletdb(strWalletFile);
2496 LOCK2(cs_main, cs_wallet);
2497 BOOST_FOREACH(const int64& id, setKeyPool)
2500 if (!walletdb.ReadPool(id, keypool))
2501 throw runtime_error("GetAllReserveKeyHashes() : read failed");
2502 assert(keypool.vchPubKey.IsValid());
2503 CKeyID keyID = keypool.vchPubKey.GetID();
2504 if (!HaveKey(keyID))
2505 throw runtime_error("GetAllReserveKeyHashes() : unknown key in key pool");
2506 setAddress.insert(keyID);
2510 void CWallet::UpdatedTransaction(const uint256 &hashTx)
2514 // Only notify UI if this transaction is in this wallet
2515 map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
2516 if (mi != mapWallet.end())
2517 NotifyTransactionChanged(this, hashTx, CT_UPDATED);
2521 void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64> &mapKeyBirth) const {
2522 mapKeyBirth.clear();
2524 // get birth times for keys with metadata
2525 for (std::map<CKeyID, CKeyMetadata>::const_iterator it = mapKeyMetadata.begin(); it != mapKeyMetadata.end(); it++)
2526 if (it->second.nCreateTime)
2527 mapKeyBirth[it->first] = it->second.nCreateTime;
2529 // map in which we'll infer heights of other keys
2530 CBlockIndex *pindexMax = FindBlockByHeight(std::max(0, nBestHeight - 144)); // the tip can be reorganised; use a 144-block safety margin
2531 std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock;
2532 std::set<CKeyID> setKeys;
2534 BOOST_FOREACH(const CKeyID &keyid, setKeys) {
2535 if (mapKeyBirth.count(keyid) == 0)
2536 mapKeyFirstBlock[keyid] = pindexMax;
2540 // if there are no such keys, we're done
2541 if (mapKeyFirstBlock.empty())
2544 // find first block that affects those keys, if there are any left
2545 std::vector<CKeyID> vAffected;
2546 for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); it++) {
2547 // iterate over all wallet transactions...
2548 const CWalletTx &wtx = (*it).second;
2549 std::map<uint256, CBlockIndex*>::const_iterator blit = mapBlockIndex.find(wtx.hashBlock);
2550 if (blit != mapBlockIndex.end() && blit->second->IsInMainChain()) {
2551 // ... which are already in a block
2552 int nHeight = blit->second->nHeight;
2553 BOOST_FOREACH(const CTxOut &txout, wtx.vout) {
2554 // iterate over all their outputs
2555 ::ExtractAffectedKeys(*this, txout.scriptPubKey, vAffected);
2556 BOOST_FOREACH(const CKeyID &keyid, vAffected) {
2557 // ... and all their affected keys
2558 std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid);
2559 if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight)
2560 rit->second = blit->second;
2567 // Extract block timestamps for those keys
2568 for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++)
2569 mapKeyBirth[it->first] = it->second->nTime - 7200; // block times can be 2h off