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1725 lines
42 KiB
1725 lines
42 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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class COutPoint;
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class CInPoint;
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class CDiskTxPos;
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class CCoinBase;
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class CTxIn;
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class CTxOut;
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class CTransaction;
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class CBlock;
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class CBlockIndex;
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class CWalletTx;
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class CKeyItem;
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static const unsigned int MAX_BLOCK_SIZE = 1000000;
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static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
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static const int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
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static const int64 COIN = 100000000;
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static const int64 CENT = 1000000;
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static const int64 MAX_MONEY = 21000000 * COIN;
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inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
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static const int COINBASE_MATURITY = 100;
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extern CCriticalSection cs_main;
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extern map<uint256, CBlockIndex*> mapBlockIndex;
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extern uint256 hashGenesisBlock;
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extern CBigNum bnProofOfWorkLimit;
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extern CBlockIndex* pindexGenesisBlock;
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extern int nBestHeight;
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extern CBigNum bnBestChainWork;
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extern CBigNum bnBestInvalidWork;
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extern uint256 hashBestChain;
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extern CBlockIndex* pindexBest;
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extern unsigned int nTransactionsUpdated;
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extern map<uint256, int> mapRequestCount;
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extern CCriticalSection cs_mapRequestCount;
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extern map<string, string> mapAddressBook;
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extern CCriticalSection cs_mapAddressBook;
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extern vector<unsigned char> vchDefaultKey;
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extern double dHashesPerSec;
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extern int64 nHPSTimerStart;
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// Settings
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extern int fGenerateBitcoins;
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extern int64 nTransactionFee;
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extern CAddress addrIncoming;
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extern int fLimitProcessors;
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extern int nLimitProcessors;
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extern int fMinimizeToTray;
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extern int fMinimizeOnClose;
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bool CheckDiskSpace(uint64 nAdditionalBytes=0);
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FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
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FILE* AppendBlockFile(unsigned int& nFileRet);
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bool AddKey(const CKey& key);
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vector<unsigned char> GenerateNewKey();
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bool AddToWallet(const CWalletTx& wtxIn);
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void WalletUpdateSpent(const COutPoint& prevout);
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void ReacceptWalletTransactions();
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bool LoadBlockIndex(bool fAllowNew=true);
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void PrintBlockTree();
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bool ProcessMessages(CNode* pfrom);
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bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv);
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bool SendMessages(CNode* pto, bool fSendTrickle);
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int64 GetBalance();
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bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRequiredRet);
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bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
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bool BroadcastTransaction(CWalletTx& wtxNew);
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string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
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string SendMoneyToBitcoinAddress(string strAddress, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
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void GenerateBitcoins(bool fGenerate);
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void ThreadBitcoinMiner(void* parg);
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void BitcoinMiner();
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bool CheckProofOfWork(uint256 hash, unsigned int nBits);
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bool IsInitialBlockDownload();
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string GetWarnings(string strFor);
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class CDiskTxPos
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{
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public:
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unsigned int nFile;
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unsigned int nBlockPos;
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unsigned int nTxPos;
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CDiskTxPos()
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{
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SetNull();
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}
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CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)
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{
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nFile = nFileIn;
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nBlockPos = nBlockPosIn;
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nTxPos = nTxPosIn;
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}
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IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
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void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
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bool IsNull() const { return (nFile == -1); }
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friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
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{
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return (a.nFile == b.nFile &&
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a.nBlockPos == b.nBlockPos &&
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a.nTxPos == b.nTxPos);
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}
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friend bool operator!=(const CDiskTxPos& a, const CDiskTxPos& b)
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{
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return !(a == b);
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}
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string ToString() const
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{
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if (IsNull())
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return strprintf("null");
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else
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return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
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}
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void print() const
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{
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printf("%s", ToString().c_str());
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}
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};
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class CInPoint
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{
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public:
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CTransaction* ptx;
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unsigned int n;
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CInPoint() { SetNull(); }
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CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }
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void SetNull() { ptx = NULL; n = -1; }
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bool IsNull() const { return (ptx == NULL && n == -1); }
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};
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class COutPoint
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{
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public:
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uint256 hash;
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unsigned int n;
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COutPoint() { SetNull(); }
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COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
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IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
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void SetNull() { hash = 0; n = -1; }
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bool IsNull() const { return (hash == 0 && n == -1); }
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friend bool operator<(const COutPoint& a, const COutPoint& b)
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{
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return (a.hash < b.hash || (a.hash == b.hash && a.n < b.n));
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}
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friend bool operator==(const COutPoint& a, const COutPoint& b)
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{
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return (a.hash == b.hash && a.n == b.n);
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}
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friend bool operator!=(const COutPoint& a, const COutPoint& b)
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{
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return !(a == b);
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}
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string ToString() const
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{
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return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,10).c_str(), n);
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}
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void print() const
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{
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printf("%s\n", ToString().c_str());
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}
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};
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//
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// An input of a transaction. It contains the location of the previous
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// transaction's output that it claims and a signature that matches the
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// output's public key.
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//
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class CTxIn
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{
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public:
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COutPoint prevout;
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CScript scriptSig;
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unsigned int nSequence;
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CTxIn()
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{
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nSequence = UINT_MAX;
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}
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explicit CTxIn(COutPoint prevoutIn, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
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{
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prevout = prevoutIn;
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scriptSig = scriptSigIn;
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nSequence = nSequenceIn;
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}
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CTxIn(uint256 hashPrevTx, unsigned int nOut, CScript scriptSigIn=CScript(), unsigned int nSequenceIn=UINT_MAX)
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{
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prevout = COutPoint(hashPrevTx, nOut);
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scriptSig = scriptSigIn;
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nSequence = nSequenceIn;
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}
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IMPLEMENT_SERIALIZE
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(
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READWRITE(prevout);
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READWRITE(scriptSig);
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READWRITE(nSequence);
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)
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bool IsFinal() const
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{
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return (nSequence == UINT_MAX);
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}
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friend bool operator==(const CTxIn& a, const CTxIn& b)
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{
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return (a.prevout == b.prevout &&
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a.scriptSig == b.scriptSig &&
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a.nSequence == b.nSequence);
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}
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friend bool operator!=(const CTxIn& a, const CTxIn& b)
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{
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return !(a == b);
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}
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string ToString() const
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{
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string str;
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str += strprintf("CTxIn(");
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str += prevout.ToString();
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if (prevout.IsNull())
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str += strprintf(", coinbase %s", HexStr(scriptSig).c_str());
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else
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str += strprintf(", scriptSig=%s", scriptSig.ToString().substr(0,24).c_str());
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if (nSequence != UINT_MAX)
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str += strprintf(", nSequence=%u", nSequence);
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str += ")";
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return str;
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}
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void print() const
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{
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printf("%s\n", ToString().c_str());
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}
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bool IsMine() const;
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int64 GetDebit() const;
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};
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//
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// An output of a transaction. It contains the public key that the next input
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// must be able to sign with to claim it.
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//
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class CTxOut
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{
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public:
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int64 nValue;
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CScript scriptPubKey;
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CTxOut()
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{
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SetNull();
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}
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CTxOut(int64 nValueIn, CScript scriptPubKeyIn)
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{
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nValue = nValueIn;
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scriptPubKey = scriptPubKeyIn;
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}
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IMPLEMENT_SERIALIZE
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(
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READWRITE(nValue);
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READWRITE(scriptPubKey);
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)
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void SetNull()
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{
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nValue = -1;
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scriptPubKey.clear();
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}
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bool IsNull()
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{
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return (nValue == -1);
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}
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uint256 GetHash() const
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{
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return SerializeHash(*this);
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}
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bool IsMine() const
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{
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return ::IsMine(scriptPubKey);
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}
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int64 GetCredit() const
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{
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if (!MoneyRange(nValue))
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throw runtime_error("CTxOut::GetCredit() : value out of range");
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if (IsMine())
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return nValue;
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return 0;
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}
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friend bool operator==(const CTxOut& a, const CTxOut& b)
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{
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return (a.nValue == b.nValue &&
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a.scriptPubKey == b.scriptPubKey);
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}
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friend bool operator!=(const CTxOut& a, const CTxOut& b)
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{
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return !(a == b);
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}
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string ToString() const
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{
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if (scriptPubKey.size() < 6)
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return "CTxOut(error)";
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return strprintf("CTxOut(nValue=%"PRI64d".%08"PRI64d", scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30).c_str());
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}
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void print() const
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{
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printf("%s\n", ToString().c_str());
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}
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};
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//
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// The basic transaction that is broadcasted on the network and contained in
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// blocks. A transaction can contain multiple inputs and outputs.
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//
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class CTransaction
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{
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public:
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int nVersion;
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vector<CTxIn> vin;
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vector<CTxOut> vout;
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unsigned int nLockTime;
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CTransaction()
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{
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SetNull();
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}
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IMPLEMENT_SERIALIZE
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(
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READWRITE(this->nVersion);
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nVersion = this->nVersion;
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READWRITE(vin);
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READWRITE(vout);
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READWRITE(nLockTime);
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)
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void SetNull()
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{
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nVersion = 1;
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vin.clear();
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vout.clear();
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nLockTime = 0;
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}
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bool IsNull() const
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{
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return (vin.empty() && vout.empty());
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}
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uint256 GetHash() const
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{
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return SerializeHash(*this);
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}
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bool IsFinal(int nBlockHeight=0, int64 nBlockTime=0) const
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{
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// Time based nLockTime implemented in 0.1.6
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if (nLockTime == 0)
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return true;
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if (nBlockHeight == 0)
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nBlockHeight = nBestHeight;
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if (nBlockTime == 0)
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nBlockTime = GetAdjustedTime();
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if ((int64)nLockTime < (nLockTime < 500000000 ? (int64)nBlockHeight : nBlockTime))
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return true;
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foreach(const CTxIn& txin, vin)
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if (!txin.IsFinal())
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return false;
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return true;
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}
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bool IsNewerThan(const CTransaction& old) const
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{
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if (vin.size() != old.vin.size())
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return false;
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for (int i = 0; i < vin.size(); i++)
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if (vin[i].prevout != old.vin[i].prevout)
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return false;
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bool fNewer = false;
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unsigned int nLowest = UINT_MAX;
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for (int i = 0; i < vin.size(); i++)
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{
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if (vin[i].nSequence != old.vin[i].nSequence)
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{
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if (vin[i].nSequence <= nLowest)
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{
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fNewer = false;
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nLowest = vin[i].nSequence;
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}
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if (old.vin[i].nSequence < nLowest)
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{
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fNewer = true;
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nLowest = old.vin[i].nSequence;
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}
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}
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}
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return fNewer;
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}
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bool IsCoinBase() const
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{
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return (vin.size() == 1 && vin[0].prevout.IsNull());
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}
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int GetSigOpCount() const
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{
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int n = 0;
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foreach(const CTxIn& txin, vin)
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n += txin.scriptSig.GetSigOpCount();
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foreach(const CTxOut& txout, vout)
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n += txout.scriptPubKey.GetSigOpCount();
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return n;
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}
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bool IsMine() const
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{
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foreach(const CTxOut& txout, vout)
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if (txout.IsMine())
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return true;
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return false;
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}
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int64 GetDebit() const
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{
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int64 nDebit = 0;
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foreach(const CTxIn& txin, vin)
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{
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nDebit += txin.GetDebit();
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if (!MoneyRange(nDebit))
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throw runtime_error("CTransaction::GetDebit() : value out of range");
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}
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return nDebit;
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}
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int64 GetCredit() const
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{
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int64 nCredit = 0;
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foreach(const CTxOut& txout, vout)
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{
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nCredit += txout.GetCredit();
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if (!MoneyRange(nCredit))
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throw runtime_error("CTransaction::GetCredit() : value out of range");
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}
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return nCredit;
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}
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int64 GetValueOut() const
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{
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int64 nValueOut = 0;
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foreach(const CTxOut& txout, vout)
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{
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nValueOut += txout.nValue;
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if (!MoneyRange(txout.nValue) || !MoneyRange(nValueOut))
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throw runtime_error("CTransaction::GetValueOut() : value out of range");
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}
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return nValueOut;
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}
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int64 GetMinFee(unsigned int nBlockSize=1) const
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{
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// Base fee is 1 cent per kilobyte
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unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK);
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unsigned int nNewBlockSize = nBlockSize + nBytes;
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int64 nMinFee = (1 + (int64)nBytes / 1000) * CENT;
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// Transactions under 25K are free as long as block size is under 40K
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// (about 11,000bc if made of 50bc inputs)
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if (nBytes < 25000 && nNewBlockSize < 40000)
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nMinFee = 0;
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// Transactions under 3K are free as long as block size is under 50K
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if (nBytes < 3000 && nNewBlockSize < 50000)
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nMinFee = 0;
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// To limit dust spam, require a 0.01 fee if any output is less than 0.01
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if (nMinFee < CENT)
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foreach(const CTxOut& txout, vout)
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if (txout.nValue < CENT)
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nMinFee = CENT;
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// Raise the price as the block approaches full
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if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
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{
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if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
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return MAX_MONEY;
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nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
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}
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if (!MoneyRange(nMinFee))
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nMinFee = MAX_MONEY;
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return nMinFee;
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}
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bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
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{
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CAutoFile filein = OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb");
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if (!filein)
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return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
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// Read transaction
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if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
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return error("CTransaction::ReadFromDisk() : fseek failed");
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filein >> *this;
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// Return file pointer
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if (pfileRet)
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{
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if (fseek(filein, pos.nTxPos, SEEK_SET) != 0)
|
|
return error("CTransaction::ReadFromDisk() : second fseek failed");
|
|
*pfileRet = filein.release();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
friend bool operator==(const CTransaction& a, const CTransaction& b)
|
|
{
|
|
return (a.nVersion == b.nVersion &&
|
|
a.vin == b.vin &&
|
|
a.vout == b.vout &&
|
|
a.nLockTime == b.nLockTime);
|
|
}
|
|
|
|
friend bool operator!=(const CTransaction& a, const CTransaction& b)
|
|
{
|
|
return !(a == b);
|
|
}
|
|
|
|
|
|
string ToString() const
|
|
{
|
|
string str;
|
|
str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
|
|
GetHash().ToString().substr(0,10).c_str(),
|
|
nVersion,
|
|
vin.size(),
|
|
vout.size(),
|
|
nLockTime);
|
|
for (int i = 0; i < vin.size(); i++)
|
|
str += " " + vin[i].ToString() + "\n";
|
|
for (int i = 0; i < vout.size(); i++)
|
|
str += " " + vout[i].ToString() + "\n";
|
|
return str;
|
|
}
|
|
|
|
void print() const
|
|
{
|
|
printf("%s", ToString().c_str());
|
|
}
|
|
|
|
|
|
bool DisconnectInputs(CTxDB& txdb);
|
|
bool ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
|
|
CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee=0);
|
|
bool ClientConnectInputs();
|
|
bool CheckTransaction() const;
|
|
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
|
|
bool AcceptToMemoryPool(bool fCheckInputs=true, bool* pfMissingInputs=NULL)
|
|
{
|
|
CTxDB txdb("r");
|
|
return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
|
|
}
|
|
protected:
|
|
bool AddToMemoryPoolUnchecked();
|
|
public:
|
|
bool RemoveFromMemoryPool();
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// A transaction with a merkle branch linking it to the block chain
|
|
//
|
|
class CMerkleTx : public CTransaction
|
|
{
|
|
public:
|
|
uint256 hashBlock;
|
|
vector<uint256> vMerkleBranch;
|
|
int nIndex;
|
|
|
|
// memory only
|
|
mutable char fMerkleVerified;
|
|
|
|
|
|
CMerkleTx()
|
|
{
|
|
Init();
|
|
}
|
|
|
|
CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
|
|
{
|
|
Init();
|
|
}
|
|
|
|
void Init()
|
|
{
|
|
hashBlock = 0;
|
|
nIndex = -1;
|
|
fMerkleVerified = false;
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
nSerSize += SerReadWrite(s, *(CTransaction*)this, nType, nVersion, ser_action);
|
|
nVersion = this->nVersion;
|
|
READWRITE(hashBlock);
|
|
READWRITE(vMerkleBranch);
|
|
READWRITE(nIndex);
|
|
)
|
|
|
|
|
|
int SetMerkleBranch(const CBlock* pblock=NULL);
|
|
int GetDepthInMainChain(int& nHeightRet) const;
|
|
int GetDepthInMainChain() const { int nHeight; return GetDepthInMainChain(nHeight); }
|
|
bool IsInMainChain() const { return GetDepthInMainChain() > 0; }
|
|
int GetBlocksToMaturity() const;
|
|
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true);
|
|
bool AcceptToMemoryPool() { CTxDB txdb("r"); return AcceptToMemoryPool(txdb); }
|
|
};
|
|
|
|
|
|
|
|
|
|
//
|
|
// A transaction with a bunch of additional info that only the owner cares
|
|
// about. It includes any unrecorded transactions needed to link it back
|
|
// to the block chain.
|
|
//
|
|
class CWalletTx : public CMerkleTx
|
|
{
|
|
public:
|
|
vector<CMerkleTx> vtxPrev;
|
|
map<string, string> mapValue;
|
|
vector<pair<string, string> > vOrderForm;
|
|
unsigned int fTimeReceivedIsTxTime;
|
|
unsigned int nTimeReceived; // time received by this node
|
|
char fFromMe;
|
|
char fSpent;
|
|
//// probably need to sign the order info so know it came from payer
|
|
|
|
// memory only
|
|
mutable char fDebitCached;
|
|
mutable char fCreditCached;
|
|
mutable int64 nDebitCached;
|
|
mutable int64 nCreditCached;
|
|
|
|
// memory only UI hints
|
|
mutable unsigned int nTimeDisplayed;
|
|
mutable int nLinesDisplayed;
|
|
mutable char fConfirmedDisplayed;
|
|
|
|
|
|
CWalletTx()
|
|
{
|
|
Init();
|
|
}
|
|
|
|
CWalletTx(const CMerkleTx& txIn) : CMerkleTx(txIn)
|
|
{
|
|
Init();
|
|
}
|
|
|
|
CWalletTx(const CTransaction& txIn) : CMerkleTx(txIn)
|
|
{
|
|
Init();
|
|
}
|
|
|
|
void Init()
|
|
{
|
|
fTimeReceivedIsTxTime = false;
|
|
nTimeReceived = 0;
|
|
fFromMe = false;
|
|
fSpent = false;
|
|
fDebitCached = false;
|
|
fCreditCached = false;
|
|
nDebitCached = 0;
|
|
nCreditCached = 0;
|
|
nTimeDisplayed = 0;
|
|
nLinesDisplayed = 0;
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion, ser_action);
|
|
nVersion = this->nVersion;
|
|
READWRITE(vtxPrev);
|
|
READWRITE(mapValue);
|
|
READWRITE(vOrderForm);
|
|
READWRITE(fTimeReceivedIsTxTime);
|
|
READWRITE(nTimeReceived);
|
|
READWRITE(fFromMe);
|
|
READWRITE(fSpent);
|
|
)
|
|
|
|
int64 GetDebit() const
|
|
{
|
|
if (vin.empty())
|
|
return 0;
|
|
if (fDebitCached)
|
|
return nDebitCached;
|
|
nDebitCached = CTransaction::GetDebit();
|
|
fDebitCached = true;
|
|
return nDebitCached;
|
|
}
|
|
|
|
int64 GetCredit(bool fUseCache=false) const
|
|
{
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
// GetBalance can assume transactions in mapWallet won't change
|
|
if (fUseCache && fCreditCached)
|
|
return nCreditCached;
|
|
nCreditCached = CTransaction::GetCredit();
|
|
fCreditCached = true;
|
|
return nCreditCached;
|
|
}
|
|
|
|
bool IsConfirmed() const
|
|
{
|
|
map<uint256, const CMerkleTx*> mapPrev;
|
|
vector<const CMerkleTx*> vWorkQueue;
|
|
vWorkQueue.reserve(vtxPrev.size()+1);
|
|
vWorkQueue.push_back(this);
|
|
for (int i = 0; i < vWorkQueue.size(); i++)
|
|
{
|
|
const CMerkleTx* ptx = vWorkQueue[i];
|
|
|
|
if (!ptx->IsFinal())
|
|
return false;
|
|
if (ptx->GetDepthInMainChain() >= 1)
|
|
return true;
|
|
if (ptx->GetDebit() <= 0)
|
|
return false;
|
|
|
|
if (mapPrev.empty())
|
|
foreach(const CMerkleTx& tx, vtxPrev)
|
|
mapPrev[tx.GetHash()] = &tx;
|
|
|
|
foreach(const CTxIn& txin, ptx->vin)
|
|
{
|
|
if (!mapPrev.count(txin.prevout.hash))
|
|
return false;
|
|
vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool WriteToDisk()
|
|
{
|
|
return CWalletDB().WriteTx(GetHash(), *this);
|
|
}
|
|
|
|
|
|
int64 GetTxTime() const;
|
|
int GetRequestCount() const;
|
|
|
|
void AddSupportingTransactions(CTxDB& txdb);
|
|
|
|
bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
|
|
bool AcceptWalletTransaction() { CTxDB txdb("r"); return AcceptWalletTransaction(txdb); }
|
|
|
|
void RelayWalletTransaction(CTxDB& txdb);
|
|
void RelayWalletTransaction() { CTxDB txdb("r"); RelayWalletTransaction(txdb); }
|
|
};
|
|
|
|
|
|
|
|
|
|
//
|
|
// A txdb record that contains the disk location of a transaction and the
|
|
// locations of transactions that spend its outputs. vSpent is really only
|
|
// used as a flag, but having the location is very helpful for debugging.
|
|
//
|
|
class CTxIndex
|
|
{
|
|
public:
|
|
CDiskTxPos pos;
|
|
vector<CDiskTxPos> vSpent;
|
|
|
|
CTxIndex()
|
|
{
|
|
SetNull();
|
|
}
|
|
|
|
CTxIndex(const CDiskTxPos& posIn, unsigned int nOutputs)
|
|
{
|
|
pos = posIn;
|
|
vSpent.resize(nOutputs);
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
READWRITE(pos);
|
|
READWRITE(vSpent);
|
|
)
|
|
|
|
void SetNull()
|
|
{
|
|
pos.SetNull();
|
|
vSpent.clear();
|
|
}
|
|
|
|
bool IsNull()
|
|
{
|
|
return pos.IsNull();
|
|
}
|
|
|
|
friend bool operator==(const CTxIndex& a, const CTxIndex& b)
|
|
{
|
|
return (a.pos == b.pos &&
|
|
a.vSpent == b.vSpent);
|
|
}
|
|
|
|
friend bool operator!=(const CTxIndex& a, const CTxIndex& b)
|
|
{
|
|
return !(a == b);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Nodes collect new transactions into a block, hash them into a hash tree,
|
|
// and scan through nonce values to make the block's hash satisfy proof-of-work
|
|
// requirements. When they solve the proof-of-work, they broadcast the block
|
|
// to everyone and the block is added to the block chain. The first transaction
|
|
// in the block is a special one that creates a new coin owned by the creator
|
|
// of the block.
|
|
//
|
|
// Blocks are appended to blk0001.dat files on disk. Their location on disk
|
|
// is indexed by CBlockIndex objects in memory.
|
|
//
|
|
class CBlock
|
|
{
|
|
public:
|
|
// header
|
|
int nVersion;
|
|
uint256 hashPrevBlock;
|
|
uint256 hashMerkleRoot;
|
|
unsigned int nTime;
|
|
unsigned int nBits;
|
|
unsigned int nNonce;
|
|
|
|
// network and disk
|
|
vector<CTransaction> vtx;
|
|
|
|
// memory only
|
|
mutable vector<uint256> vMerkleTree;
|
|
|
|
|
|
CBlock()
|
|
{
|
|
SetNull();
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
READWRITE(this->nVersion);
|
|
nVersion = this->nVersion;
|
|
READWRITE(hashPrevBlock);
|
|
READWRITE(hashMerkleRoot);
|
|
READWRITE(nTime);
|
|
READWRITE(nBits);
|
|
READWRITE(nNonce);
|
|
|
|
// ConnectBlock depends on vtx being last so it can calculate offset
|
|
if (!(nType & (SER_GETHASH|SER_BLOCKHEADERONLY)))
|
|
READWRITE(vtx);
|
|
else if (fRead)
|
|
const_cast<CBlock*>(this)->vtx.clear();
|
|
)
|
|
|
|
void SetNull()
|
|
{
|
|
nVersion = 1;
|
|
hashPrevBlock = 0;
|
|
hashMerkleRoot = 0;
|
|
nTime = 0;
|
|
nBits = 0;
|
|
nNonce = 0;
|
|
vtx.clear();
|
|
vMerkleTree.clear();
|
|
}
|
|
|
|
bool IsNull() const
|
|
{
|
|
return (nBits == 0);
|
|
}
|
|
|
|
uint256 GetHash() const
|
|
{
|
|
return Hash(BEGIN(nVersion), END(nNonce));
|
|
}
|
|
|
|
int64 GetBlockTime() const
|
|
{
|
|
return (int64)nTime;
|
|
}
|
|
|
|
int GetSigOpCount() const
|
|
{
|
|
int n = 0;
|
|
foreach(const CTransaction& tx, vtx)
|
|
n += tx.GetSigOpCount();
|
|
return n;
|
|
}
|
|
|
|
|
|
uint256 BuildMerkleTree() const
|
|
{
|
|
vMerkleTree.clear();
|
|
foreach(const CTransaction& tx, vtx)
|
|
vMerkleTree.push_back(tx.GetHash());
|
|
int j = 0;
|
|
for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
|
|
{
|
|
for (int i = 0; i < nSize; i += 2)
|
|
{
|
|
int i2 = min(i+1, nSize-1);
|
|
vMerkleTree.push_back(Hash(BEGIN(vMerkleTree[j+i]), END(vMerkleTree[j+i]),
|
|
BEGIN(vMerkleTree[j+i2]), END(vMerkleTree[j+i2])));
|
|
}
|
|
j += nSize;
|
|
}
|
|
return (vMerkleTree.empty() ? 0 : vMerkleTree.back());
|
|
}
|
|
|
|
vector<uint256> GetMerkleBranch(int nIndex) const
|
|
{
|
|
if (vMerkleTree.empty())
|
|
BuildMerkleTree();
|
|
vector<uint256> vMerkleBranch;
|
|
int j = 0;
|
|
for (int nSize = vtx.size(); nSize > 1; nSize = (nSize + 1) / 2)
|
|
{
|
|
int i = min(nIndex^1, nSize-1);
|
|
vMerkleBranch.push_back(vMerkleTree[j+i]);
|
|
nIndex >>= 1;
|
|
j += nSize;
|
|
}
|
|
return vMerkleBranch;
|
|
}
|
|
|
|
static uint256 CheckMerkleBranch(uint256 hash, const vector<uint256>& vMerkleBranch, int nIndex)
|
|
{
|
|
if (nIndex == -1)
|
|
return 0;
|
|
foreach(const uint256& otherside, vMerkleBranch)
|
|
{
|
|
if (nIndex & 1)
|
|
hash = Hash(BEGIN(otherside), END(otherside), BEGIN(hash), END(hash));
|
|
else
|
|
hash = Hash(BEGIN(hash), END(hash), BEGIN(otherside), END(otherside));
|
|
nIndex >>= 1;
|
|
}
|
|
return hash;
|
|
}
|
|
|
|
|
|
bool WriteToDisk(bool fWriteTransactions, unsigned int& nFileRet, unsigned int& nBlockPosRet)
|
|
{
|
|
// Open history file to append
|
|
CAutoFile fileout = AppendBlockFile(nFileRet);
|
|
if (!fileout)
|
|
return error("CBlock::WriteToDisk() : AppendBlockFile failed");
|
|
if (!fWriteTransactions)
|
|
fileout.nType |= SER_BLOCKHEADERONLY;
|
|
|
|
// Write index header
|
|
unsigned int nSize = fileout.GetSerializeSize(*this);
|
|
fileout << FLATDATA(pchMessageStart) << nSize;
|
|
|
|
// Write block
|
|
nBlockPosRet = ftell(fileout);
|
|
if (nBlockPosRet == -1)
|
|
return error("CBlock::WriteToDisk() : ftell failed");
|
|
fileout << *this;
|
|
|
|
// Flush stdio buffers and commit to disk before returning
|
|
fflush(fileout);
|
|
if (!IsInitialBlockDownload() || (nBestHeight+1) % 500 == 0)
|
|
{
|
|
#ifdef __WXMSW__
|
|
_commit(_fileno(fileout));
|
|
#else
|
|
fsync(fileno(fileout));
|
|
#endif
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ReadFromDisk(unsigned int nFile, unsigned int nBlockPos, bool fReadTransactions=true)
|
|
{
|
|
SetNull();
|
|
|
|
// Open history file to read
|
|
CAutoFile filein = OpenBlockFile(nFile, nBlockPos, "rb");
|
|
if (!filein)
|
|
return error("CBlock::ReadFromDisk() : OpenBlockFile failed");
|
|
if (!fReadTransactions)
|
|
filein.nType |= SER_BLOCKHEADERONLY;
|
|
|
|
// Read block
|
|
filein >> *this;
|
|
|
|
// Check the header
|
|
if (!CheckProofOfWork(GetHash(), nBits))
|
|
return error("CBlock::ReadFromDisk() : errors in block header");
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
void print() const
|
|
{
|
|
printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d)\n",
|
|
GetHash().ToString().substr(0,20).c_str(),
|
|
nVersion,
|
|
hashPrevBlock.ToString().substr(0,20).c_str(),
|
|
hashMerkleRoot.ToString().substr(0,10).c_str(),
|
|
nTime, nBits, nNonce,
|
|
vtx.size());
|
|
for (int i = 0; i < vtx.size(); i++)
|
|
{
|
|
printf(" ");
|
|
vtx[i].print();
|
|
}
|
|
printf(" vMerkleTree: ");
|
|
for (int i = 0; i < vMerkleTree.size(); i++)
|
|
printf("%s ", vMerkleTree[i].ToString().substr(0,10).c_str());
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
|
|
bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
|
|
bool ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions=true);
|
|
bool SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew);
|
|
bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);
|
|
bool CheckBlock() const;
|
|
bool AcceptBlock();
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// The block chain is a tree shaped structure starting with the
|
|
// genesis block at the root, with each block potentially having multiple
|
|
// candidates to be the next block. pprev and pnext link a path through the
|
|
// main/longest chain. A blockindex may have multiple pprev pointing back
|
|
// to it, but pnext will only point forward to the longest branch, or will
|
|
// be null if the block is not part of the longest chain.
|
|
//
|
|
class CBlockIndex
|
|
{
|
|
public:
|
|
const uint256* phashBlock;
|
|
CBlockIndex* pprev;
|
|
CBlockIndex* pnext;
|
|
unsigned int nFile;
|
|
unsigned int nBlockPos;
|
|
int nHeight;
|
|
CBigNum bnChainWork;
|
|
|
|
// block header
|
|
int nVersion;
|
|
uint256 hashMerkleRoot;
|
|
unsigned int nTime;
|
|
unsigned int nBits;
|
|
unsigned int nNonce;
|
|
|
|
|
|
CBlockIndex()
|
|
{
|
|
phashBlock = NULL;
|
|
pprev = NULL;
|
|
pnext = NULL;
|
|
nFile = 0;
|
|
nBlockPos = 0;
|
|
nHeight = 0;
|
|
bnChainWork = 0;
|
|
|
|
nVersion = 0;
|
|
hashMerkleRoot = 0;
|
|
nTime = 0;
|
|
nBits = 0;
|
|
nNonce = 0;
|
|
}
|
|
|
|
CBlockIndex(unsigned int nFileIn, unsigned int nBlockPosIn, CBlock& block)
|
|
{
|
|
phashBlock = NULL;
|
|
pprev = NULL;
|
|
pnext = NULL;
|
|
nFile = nFileIn;
|
|
nBlockPos = nBlockPosIn;
|
|
nHeight = 0;
|
|
bnChainWork = 0;
|
|
|
|
nVersion = block.nVersion;
|
|
hashMerkleRoot = block.hashMerkleRoot;
|
|
nTime = block.nTime;
|
|
nBits = block.nBits;
|
|
nNonce = block.nNonce;
|
|
}
|
|
|
|
uint256 GetBlockHash() const
|
|
{
|
|
return *phashBlock;
|
|
}
|
|
|
|
int64 GetBlockTime() const
|
|
{
|
|
return (int64)nTime;
|
|
}
|
|
|
|
CBigNum GetBlockWork() const
|
|
{
|
|
CBigNum bnTarget;
|
|
bnTarget.SetCompact(nBits);
|
|
if (bnTarget <= 0)
|
|
return 0;
|
|
return (CBigNum(1)<<256) / (bnTarget+1);
|
|
}
|
|
|
|
bool IsInMainChain() const
|
|
{
|
|
return (pnext || this == pindexBest);
|
|
}
|
|
|
|
bool CheckIndex() const
|
|
{
|
|
return CheckProofOfWork(GetBlockHash(), nBits);
|
|
}
|
|
|
|
bool EraseBlockFromDisk()
|
|
{
|
|
// Open history file
|
|
CAutoFile fileout = OpenBlockFile(nFile, nBlockPos, "rb+");
|
|
if (!fileout)
|
|
return false;
|
|
|
|
// Overwrite with empty null block
|
|
CBlock block;
|
|
block.SetNull();
|
|
fileout << block;
|
|
|
|
return true;
|
|
}
|
|
|
|
enum { nMedianTimeSpan=11 };
|
|
|
|
int64 GetMedianTimePast() const
|
|
{
|
|
int64 pmedian[nMedianTimeSpan];
|
|
int64* pbegin = &pmedian[nMedianTimeSpan];
|
|
int64* pend = &pmedian[nMedianTimeSpan];
|
|
|
|
const CBlockIndex* pindex = this;
|
|
for (int i = 0; i < nMedianTimeSpan && pindex; i++, pindex = pindex->pprev)
|
|
*(--pbegin) = pindex->GetBlockTime();
|
|
|
|
sort(pbegin, pend);
|
|
return pbegin[(pend - pbegin)/2];
|
|
}
|
|
|
|
int64 GetMedianTime() const
|
|
{
|
|
const CBlockIndex* pindex = this;
|
|
for (int i = 0; i < nMedianTimeSpan/2; i++)
|
|
{
|
|
if (!pindex->pnext)
|
|
return GetBlockTime();
|
|
pindex = pindex->pnext;
|
|
}
|
|
return pindex->GetMedianTimePast();
|
|
}
|
|
|
|
|
|
|
|
string ToString() const
|
|
{
|
|
return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, merkle=%s, hashBlock=%s)",
|
|
pprev, pnext, nFile, nBlockPos, nHeight,
|
|
hashMerkleRoot.ToString().substr(0,10).c_str(),
|
|
GetBlockHash().ToString().substr(0,20).c_str());
|
|
}
|
|
|
|
void print() const
|
|
{
|
|
printf("%s\n", ToString().c_str());
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//
|
|
// Used to marshal pointers into hashes for db storage.
|
|
//
|
|
class CDiskBlockIndex : public CBlockIndex
|
|
{
|
|
public:
|
|
uint256 hashPrev;
|
|
uint256 hashNext;
|
|
|
|
CDiskBlockIndex()
|
|
{
|
|
hashPrev = 0;
|
|
hashNext = 0;
|
|
}
|
|
|
|
explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex)
|
|
{
|
|
hashPrev = (pprev ? pprev->GetBlockHash() : 0);
|
|
hashNext = (pnext ? pnext->GetBlockHash() : 0);
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
|
|
READWRITE(hashNext);
|
|
READWRITE(nFile);
|
|
READWRITE(nBlockPos);
|
|
READWRITE(nHeight);
|
|
|
|
// block header
|
|
READWRITE(this->nVersion);
|
|
READWRITE(hashPrev);
|
|
READWRITE(hashMerkleRoot);
|
|
READWRITE(nTime);
|
|
READWRITE(nBits);
|
|
READWRITE(nNonce);
|
|
)
|
|
|
|
uint256 GetBlockHash() const
|
|
{
|
|
CBlock block;
|
|
block.nVersion = nVersion;
|
|
block.hashPrevBlock = hashPrev;
|
|
block.hashMerkleRoot = hashMerkleRoot;
|
|
block.nTime = nTime;
|
|
block.nBits = nBits;
|
|
block.nNonce = nNonce;
|
|
return block.GetHash();
|
|
}
|
|
|
|
|
|
string ToString() const
|
|
{
|
|
string str = "CDiskBlockIndex(";
|
|
str += CBlockIndex::ToString();
|
|
str += strprintf("\n hashBlock=%s, hashPrev=%s, hashNext=%s)",
|
|
GetBlockHash().ToString().c_str(),
|
|
hashPrev.ToString().substr(0,20).c_str(),
|
|
hashNext.ToString().substr(0,20).c_str());
|
|
return str;
|
|
}
|
|
|
|
void print() const
|
|
{
|
|
printf("%s\n", ToString().c_str());
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Describes a place in the block chain to another node such that if the
|
|
// other node doesn't have the same branch, it can find a recent common trunk.
|
|
// The further back it is, the further before the fork it may be.
|
|
//
|
|
class CBlockLocator
|
|
{
|
|
protected:
|
|
vector<uint256> vHave;
|
|
public:
|
|
|
|
CBlockLocator()
|
|
{
|
|
}
|
|
|
|
explicit CBlockLocator(const CBlockIndex* pindex)
|
|
{
|
|
Set(pindex);
|
|
}
|
|
|
|
explicit CBlockLocator(uint256 hashBlock)
|
|
{
|
|
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
|
|
if (mi != mapBlockIndex.end())
|
|
Set((*mi).second);
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
READWRITE(vHave);
|
|
)
|
|
|
|
void Set(const CBlockIndex* pindex)
|
|
{
|
|
vHave.clear();
|
|
int nStep = 1;
|
|
while (pindex)
|
|
{
|
|
vHave.push_back(pindex->GetBlockHash());
|
|
|
|
// Exponentially larger steps back
|
|
for (int i = 0; pindex && i < nStep; i++)
|
|
pindex = pindex->pprev;
|
|
if (vHave.size() > 10)
|
|
nStep *= 2;
|
|
}
|
|
vHave.push_back(hashGenesisBlock);
|
|
}
|
|
|
|
int GetDistanceBack()
|
|
{
|
|
// Retrace how far back it was in the sender's branch
|
|
int nDistance = 0;
|
|
int nStep = 1;
|
|
foreach(const uint256& hash, vHave)
|
|
{
|
|
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
|
|
if (mi != mapBlockIndex.end())
|
|
{
|
|
CBlockIndex* pindex = (*mi).second;
|
|
if (pindex->IsInMainChain())
|
|
return nDistance;
|
|
}
|
|
nDistance += nStep;
|
|
if (nDistance > 10)
|
|
nStep *= 2;
|
|
}
|
|
return nDistance;
|
|
}
|
|
|
|
CBlockIndex* GetBlockIndex()
|
|
{
|
|
// Find the first block the caller has in the main chain
|
|
foreach(const uint256& hash, vHave)
|
|
{
|
|
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
|
|
if (mi != mapBlockIndex.end())
|
|
{
|
|
CBlockIndex* pindex = (*mi).second;
|
|
if (pindex->IsInMainChain())
|
|
return pindex;
|
|
}
|
|
}
|
|
return pindexGenesisBlock;
|
|
}
|
|
|
|
uint256 GetBlockHash()
|
|
{
|
|
// Find the first block the caller has in the main chain
|
|
foreach(const uint256& hash, vHave)
|
|
{
|
|
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hash);
|
|
if (mi != mapBlockIndex.end())
|
|
{
|
|
CBlockIndex* pindex = (*mi).second;
|
|
if (pindex->IsInMainChain())
|
|
return hash;
|
|
}
|
|
}
|
|
return hashGenesisBlock;
|
|
}
|
|
|
|
int GetHeight()
|
|
{
|
|
CBlockIndex* pindex = GetBlockIndex();
|
|
if (!pindex)
|
|
return 0;
|
|
return pindex->nHeight;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Private key that includes an expiration date in case it never gets used.
|
|
//
|
|
class CWalletKey
|
|
{
|
|
public:
|
|
CPrivKey vchPrivKey;
|
|
int64 nTimeCreated;
|
|
int64 nTimeExpires;
|
|
string strComment;
|
|
//// todo: add something to note what created it (user, getnewaddress, change)
|
|
//// maybe should have a map<string, string> property map
|
|
|
|
CWalletKey(int64 nExpires=0)
|
|
{
|
|
nTimeCreated = (nExpires ? GetTime() : 0);
|
|
nTimeExpires = nExpires;
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
READWRITE(vchPrivKey);
|
|
READWRITE(nTimeCreated);
|
|
READWRITE(nTimeExpires);
|
|
READWRITE(strComment);
|
|
)
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Alert messages are broadcast as a vector of signed data. Unserializing may
|
|
// not read the entire buffer if the alert is for a newer version, but older
|
|
// versions can still relay the original data.
|
|
//
|
|
class CUnsignedAlert
|
|
{
|
|
public:
|
|
int nVersion;
|
|
int64 nRelayUntil; // when newer nodes stop relaying to newer nodes
|
|
int64 nExpiration;
|
|
int nID;
|
|
int nCancel;
|
|
set<int> setCancel;
|
|
int nMinVer; // lowest version inclusive
|
|
int nMaxVer; // highest version inclusive
|
|
set<string> setSubVer; // empty matches all
|
|
int nPriority;
|
|
|
|
// Actions
|
|
string strComment;
|
|
string strStatusBar;
|
|
string strRPCError;
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
READWRITE(this->nVersion);
|
|
nVersion = this->nVersion;
|
|
READWRITE(nRelayUntil);
|
|
READWRITE(nExpiration);
|
|
READWRITE(nID);
|
|
READWRITE(nCancel);
|
|
READWRITE(setCancel);
|
|
READWRITE(nMinVer);
|
|
READWRITE(nMaxVer);
|
|
READWRITE(setSubVer);
|
|
READWRITE(nPriority);
|
|
|
|
READWRITE(strComment);
|
|
READWRITE(strStatusBar);
|
|
READWRITE(strRPCError);
|
|
)
|
|
|
|
void SetNull()
|
|
{
|
|
nVersion = 1;
|
|
nRelayUntil = 0;
|
|
nExpiration = 0;
|
|
nID = 0;
|
|
nCancel = 0;
|
|
setCancel.clear();
|
|
nMinVer = 0;
|
|
nMaxVer = 0;
|
|
setSubVer.clear();
|
|
nPriority = 0;
|
|
|
|
strComment.clear();
|
|
strStatusBar.clear();
|
|
strRPCError.clear();
|
|
}
|
|
|
|
string ToString() const
|
|
{
|
|
string strSetCancel;
|
|
foreach(int n, setCancel)
|
|
strSetCancel += strprintf("%d ", n);
|
|
string strSetSubVer;
|
|
foreach(string str, setSubVer)
|
|
strSetSubVer += "\"" + str + "\" ";
|
|
return strprintf(
|
|
"CAlert(\n"
|
|
" nVersion = %d\n"
|
|
" nRelayUntil = %"PRI64d"\n"
|
|
" nExpiration = %"PRI64d"\n"
|
|
" nID = %d\n"
|
|
" nCancel = %d\n"
|
|
" setCancel = %s\n"
|
|
" nMinVer = %d\n"
|
|
" nMaxVer = %d\n"
|
|
" setSubVer = %s\n"
|
|
" nPriority = %d\n"
|
|
" strComment = \"%s\"\n"
|
|
" strStatusBar = \"%s\"\n"
|
|
" strRPCError = \"%s\"\n"
|
|
")\n",
|
|
nVersion,
|
|
nRelayUntil,
|
|
nExpiration,
|
|
nID,
|
|
nCancel,
|
|
strSetCancel.c_str(),
|
|
nMinVer,
|
|
nMaxVer,
|
|
strSetSubVer.c_str(),
|
|
nPriority,
|
|
strComment.c_str(),
|
|
strStatusBar.c_str(),
|
|
strRPCError.c_str());
|
|
}
|
|
|
|
void print() const
|
|
{
|
|
printf("%s", ToString().c_str());
|
|
}
|
|
};
|
|
|
|
class CAlert : public CUnsignedAlert
|
|
{
|
|
public:
|
|
vector<unsigned char> vchMsg;
|
|
vector<unsigned char> vchSig;
|
|
|
|
CAlert()
|
|
{
|
|
SetNull();
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
READWRITE(vchMsg);
|
|
READWRITE(vchSig);
|
|
)
|
|
|
|
void SetNull()
|
|
{
|
|
CUnsignedAlert::SetNull();
|
|
vchMsg.clear();
|
|
vchSig.clear();
|
|
}
|
|
|
|
bool IsNull() const
|
|
{
|
|
return (nExpiration == 0);
|
|
}
|
|
|
|
uint256 GetHash() const
|
|
{
|
|
return SerializeHash(*this);
|
|
}
|
|
|
|
bool IsInEffect() const
|
|
{
|
|
return (GetAdjustedTime() < nExpiration);
|
|
}
|
|
|
|
bool Cancels(const CAlert& alert) const
|
|
{
|
|
if (!IsInEffect())
|
|
false;
|
|
return (alert.nID <= nCancel || setCancel.count(alert.nID));
|
|
}
|
|
|
|
bool AppliesTo(int nVersion, string strSubVerIn) const
|
|
{
|
|
return (IsInEffect() &&
|
|
nMinVer <= nVersion && nVersion <= nMaxVer &&
|
|
(setSubVer.empty() || setSubVer.count(strSubVerIn)));
|
|
}
|
|
|
|
bool AppliesToMe() const
|
|
{
|
|
return AppliesTo(VERSION, ::pszSubVer);
|
|
}
|
|
|
|
bool RelayTo(CNode* pnode) const
|
|
{
|
|
if (!IsInEffect())
|
|
return false;
|
|
// returns true if wasn't already contained in the set
|
|
if (pnode->setKnown.insert(GetHash()).second)
|
|
{
|
|
if (AppliesTo(pnode->nVersion, pnode->strSubVer) ||
|
|
AppliesToMe() ||
|
|
GetAdjustedTime() < nRelayUntil)
|
|
{
|
|
pnode->PushMessage("alert", *this);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CheckSignature()
|
|
{
|
|
CKey key;
|
|
if (!key.SetPubKey(ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284")))
|
|
return error("CAlert::CheckSignature() : SetPubKey failed");
|
|
if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
|
|
return error("CAlert::CheckSignature() : verify signature failed");
|
|
|
|
// Now unserialize the data
|
|
CDataStream sMsg(vchMsg);
|
|
sMsg >> *(CUnsignedAlert*)this;
|
|
return true;
|
|
}
|
|
|
|
bool ProcessAlert();
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
extern map<uint256, CTransaction> mapTransactions;
|
|
extern map<uint256, CWalletTx> mapWallet;
|
|
extern vector<uint256> vWalletUpdated;
|
|
extern CCriticalSection cs_mapWallet;
|
|
extern map<vector<unsigned char>, CPrivKey> mapKeys;
|
|
extern map<uint160, vector<unsigned char> > mapPubKeys;
|
|
extern CCriticalSection cs_mapKeys;
|
|
extern CKey keyUser;
|