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- // ECOin - Copyright (c) - 2014/2024 - GPLv3 - epsylon@riseup.net (https://03c8.net)
- #include "alert.h"
- #include "checkpoints.h"
- #include "db.h"
- #include "txdb.h"
- #include "net.h"
- #include "init.h"
- #include "ui_interface.h"
- #include "kernel.h"
- #include "zerocoin/Zerocoin.h"
- #include <boost/algorithm/string/replace.hpp>
- #include <boost/filesystem.hpp>
- #include <boost/filesystem/fstream.hpp>
- #include <boost/random/mersenne_twister.hpp>
- #include <boost/random/uniform_int.hpp>
- using namespace std;
- using namespace boost;
- CCriticalSection cs_setpwalletRegistered;
- set<CWallet*> setpwalletRegistered;
- CCriticalSection cs_main;
- CTxMemPool mempool;
- unsigned int nTransactionsUpdated = 0;
- map<uint256, CBlockIndex*> mapBlockIndex;
- set<pair<COutPoint, unsigned int> > setStakeSeen;
- libzerocoin::Params* ZCParams;
- CBigNum bnProofOfWorkLimit(~uint256(0) >> 20); // "standard" scrypt target limit for proof of work, results with 0,000244140625 proof-of-work difficulty
- CBigNum bnProofOfStakeLimit(~uint256(0) >> 27);
- uint256 nPoWBase = uint256("0x00000000ffff0000000000000000000000000000000000000000000000000000"); // difficulty-1 target
- CBigNum bnProofOfWorkLimitTestNet(~uint256(0) >> 16);
- unsigned int nStakeMinAge = 60 * 60 * 24 * 30; // 30 days as zero time weight
- unsigned int nStakeMaxAge = 60 * 60 * 24 * 90; // 90 days as full weight
- unsigned int nStakeTargetSpacing = 2 * 60; // 2-minute stakes spacing
- unsigned int nModifierInterval = 4 * 60 * 60; // time to elapse before new modifier is computed
- int nCoinbaseMaturity = 12;
- CBlockIndex* pindexGenesisBlock = NULL;
- int nBestHeight = -1;
- uint256 nBestChainTrust = 0;
- uint256 nBestInvalidTrust = 0;
- uint256 hashBestChain = 0;
- CBlockIndex* pindexBest = NULL;
- int64 nTimeBestReceived = 0;
- CMedianFilter<int> cPeerBlockCounts(5, 0); // Amount of blocks that other nodes claim to have
- map<uint256, CBlock*> mapOrphanBlocks;
- multimap<uint256, CBlock*> mapOrphanBlocksByPrev;
- set<pair<COutPoint, unsigned int> > setStakeSeenOrphan;
- map<uint256, uint256> mapProofOfStake;
- map<uint256, CTransaction> mapOrphanTransactions;
- map<uint256, set<uint256> > mapOrphanTransactionsByPrev;
- CScript COINBASE_FLAGS;
- const string strMessageMagic = "Ecoin Signed Message:\n";
- int64 nTransactionFee = MIN_TX_FEE;
- int64 nMinimumInputValue = MIN_TX_FEE;
- extern enum Checkpoints::CPMode CheckpointsMode;
- void RegisterWallet(CWallet* pwalletIn)
- {
- {
- LOCK(cs_setpwalletRegistered);
- setpwalletRegistered.insert(pwalletIn);
- }
- }
- void UnregisterWallet(CWallet* pwalletIn)
- {
- {
- LOCK(cs_setpwalletRegistered);
- setpwalletRegistered.erase(pwalletIn);
- }
- }
- // check whether the passed transaction is from us
- bool static IsFromMe(CTransaction& tx)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- if (pwallet->IsFromMe(tx))
- return true;
- return false;
- }
- // get the wallet transaction with the given hash (if it exists)
- bool static GetTransaction(const uint256& hashTx, CWalletTx& wtx)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- if (pwallet->GetTransaction(hashTx,wtx))
- return true;
- return false;
- }
- // erases transaction with the given hash from all wallets
- void static EraseFromWallets(uint256 hash)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->EraseFromWallet(hash);
- }
- // make sure all wallets know about the given transaction, in the given block
- void SyncWithWallets(const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fConnect)
- {
- if (!fConnect)
- {
- // ecoin: wallets need to refund inputs when disconnecting coinstake
- if (tx.IsCoinStake())
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- if (pwallet->IsFromMe(tx))
- pwallet->DisableTransaction(tx);
- }
- return;
- }
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->AddToWalletIfInvolvingMe(tx, pblock, fUpdate);
- }
- // notify wallets about a new best chain
- void static SetBestChain(const CBlockLocator& loc)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->SetBestChain(loc);
- }
- // notify wallets about an updated transaction
- void static UpdatedTransaction(const uint256& hashTx)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->UpdatedTransaction(hashTx);
- }
- // dump all wallets
- void static PrintWallets(const CBlock& block)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->PrintWallet(block);
- }
- // notify wallets about an incoming inventory (for request counts)
- void static Inventory(const uint256& hash)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->Inventory(hash);
- }
- // ask wallets to resend their transactions
- void ResendWalletTransactions(bool fForce)
- {
- BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
- pwallet->ResendWalletTransactions(fForce);
- }
- bool AddOrphanTx(const CTransaction& tx)
- {
- uint256 hash = tx.GetHash();
- if (mapOrphanTransactions.count(hash))
- return false;
- size_t nSize = tx.GetSerializeSize(SER_NETWORK, CTransaction::CURRENT_VERSION);
- if (nSize > 5000)
- {
- printf("ignoring large orphan tx (size: %" PRIszu", hash: %s)\n", nSize, hash.ToString().substr(0,10).c_str());
- return false;
- }
- mapOrphanTransactions[hash] = tx;
- BOOST_FOREACH(const CTxIn& txin, tx.vin)
- mapOrphanTransactionsByPrev[txin.prevout.hash].insert(hash);
- printf("stored orphan tx %s (mapsz %" PRIszu")\n", hash.ToString().substr(0,10).c_str(),
- mapOrphanTransactions.size());
- return true;
- }
- void static EraseOrphanTx(uint256 hash)
- {
- if (!mapOrphanTransactions.count(hash))
- return;
- const CTransaction& tx = mapOrphanTransactions[hash];
- BOOST_FOREACH(const CTxIn& txin, tx.vin)
- {
- mapOrphanTransactionsByPrev[txin.prevout.hash].erase(hash);
- if (mapOrphanTransactionsByPrev[txin.prevout.hash].empty())
- mapOrphanTransactionsByPrev.erase(txin.prevout.hash);
- }
- mapOrphanTransactions.erase(hash);
- }
- unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
- {
- unsigned int nEvicted = 0;
- while (mapOrphanTransactions.size() > nMaxOrphans)
- {
- // Evict a random orphan:
- uint256 randomhash = GetRandHash();
- map<uint256, CTransaction>::iterator it = mapOrphanTransactions.lower_bound(randomhash);
- if (it == mapOrphanTransactions.end())
- it = mapOrphanTransactions.begin();
- EraseOrphanTx(it->first);
- ++nEvicted;
- }
- return nEvicted;
- }
- bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet)
- {
- SetNull();
- if (!txdb.ReadTxIndex(prevout.hash, txindexRet))
- return false;
- if (!ReadFromDisk(txindexRet.pos))
- return false;
- if (prevout.n >= vout.size())
- {
- SetNull();
- return false;
- }
- return true;
- }
- bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout)
- {
- CTxIndex txindex;
- return ReadFromDisk(txdb, prevout, txindex);
- }
- bool CTransaction::ReadFromDisk(COutPoint prevout)
- {
- CTxDB txdb("r");
- CTxIndex txindex;
- return ReadFromDisk(txdb, prevout, txindex);
- }
- bool CTransaction::IsStandard() const
- {
- if (nVersion > CTransaction::CURRENT_VERSION)
- return false;
- BOOST_FOREACH(const CTxIn& txin, vin)
- {
- if (txin.scriptSig.size() > 500)
- return false;
- if (!txin.scriptSig.IsPushOnly())
- return false;
- //if (fEnforceCanonical && !txin.scriptSig.HasCanonicalPushes()) {
- // return false;
- // }
- }
- BOOST_FOREACH(const CTxOut& txout, vout) {
- if (!::IsStandard(txout.scriptPubKey))
- return false;
- if (txout.nValue == 0)
- return false;
- //if (fEnforceCanonical && !txout.scriptPubKey.HasCanonicalPushes()) {
- // return false;
- // }
- }
- return true;
- }
- bool CTransaction::AreInputsStandard(const MapPrevTx& mapInputs) const
- {
- if (IsCoinBase())
- return true; // Coinbases don't use vin normally
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- const CTxOut& prev = GetOutputFor(vin[i], mapInputs);
- vector<vector<unsigned char> > vSolutions;
- txnouttype whichType;
- // get the scriptPubKey corresponding to this input:
- const CScript& prevScript = prev.scriptPubKey;
- if (!Solver(prevScript, whichType, vSolutions))
- return false;
- int nArgsExpected = ScriptSigArgsExpected(whichType, vSolutions);
- if (nArgsExpected < 0)
- return false;
- vector<vector<unsigned char> > stack;
- if (!EvalScript(stack, vin[i].scriptSig, *this, i, 0))
- return false;
- if (whichType == TX_SCRIPTHASH)
- {
- if (stack.empty())
- return false;
- CScript subscript(stack.back().begin(), stack.back().end());
- vector<vector<unsigned char> > vSolutions2;
- txnouttype whichType2;
- if (!Solver(subscript, whichType2, vSolutions2))
- return false;
- if (whichType2 == TX_SCRIPTHASH)
- return false;
- int tmpExpected;
- tmpExpected = ScriptSigArgsExpected(whichType2, vSolutions2);
- if (tmpExpected < 0)
- return false;
- nArgsExpected += tmpExpected;
- }
- if (stack.size() != (unsigned int)nArgsExpected)
- return false;
- }
- return true;
- }
- unsigned int
- CTransaction::GetLegacySigOpCount() const
- {
- unsigned int nSigOps = 0;
- BOOST_FOREACH(const CTxIn& txin, vin)
- {
- nSigOps += txin.scriptSig.GetSigOpCount(false);
- }
- BOOST_FOREACH(const CTxOut& txout, vout)
- {
- nSigOps += txout.scriptPubKey.GetSigOpCount(false);
- }
- return nSigOps;
- }
- int CMerkleTx::SetMerkleBranch(const CBlock* pblock)
- {
- if (fClient)
- {
- if (hashBlock == 0)
- return 0;
- }
- else
- {
- CBlock blockTmp;
- if (pblock == NULL)
- {
- // Load the block this tx is in
- CTxIndex txindex;
- if (!CTxDB("r").ReadTxIndex(GetHash(), txindex))
- return 0;
- if (!blockTmp.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos))
- return 0;
- pblock = &blockTmp;
- }
- // Update the tx's hashBlock
- hashBlock = pblock->GetHash();
- // Locate the transaction
- for (nIndex = 0; nIndex < (int)pblock->vtx.size(); nIndex++)
- if (pblock->vtx[nIndex] == *(CTransaction*)this)
- break;
- if (nIndex == (int)pblock->vtx.size())
- {
- vMerkleBranch.clear();
- nIndex = -1;
- printf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
- return 0;
- }
- // Fill in merkle branch
- vMerkleBranch = pblock->GetMerkleBranch(nIndex);
- }
- // Is the tx in a block that's in the main chain
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
- if (mi == mapBlockIndex.end())
- return 0;
- CBlockIndex* pindex = (*mi).second;
- if (!pindex || !pindex->IsInMainChain())
- return 0;
- return pindexBest->nHeight - pindex->nHeight + 1;
- }
- bool CTransaction::CheckTransaction() const
- {
- // Basic checks that don't depend on any context
- if (vin.empty())
- return DoS(10, error("CTransaction::CheckTransaction() : vin empty"));
- if (vout.empty())
- return DoS(10, error("CTransaction::CheckTransaction() : vout empty"));
- // Size limits
- if (::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
- return DoS(100, error("CTransaction::CheckTransaction() : size limits failed"));
- // Check for negative or overflow output values
- int64 nValueOut = 0;
- for (unsigned int i = 0; i < vout.size(); i++)
- {
- const CTxOut& txout = vout[i];
- if (txout.IsEmpty() && !IsCoinBase() && !IsCoinStake())
- return DoS(100, error("CTransaction::CheckTransaction() : txout empty for user transaction"));
- if (!fTestNet && !IsCoinBase() && !txout.IsEmpty() && txout.nValue < MIN_TXOUT_AMOUNT)
- return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue below minimum"));
- if (txout.nValue < 0)
- return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue is negative"));
- if (txout.nValue > MAX_MONEY)
- return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue too high"));
- nValueOut += txout.nValue;
- if (!MoneyRange(nValueOut))
- return DoS(100, error("CTransaction::CheckTransaction() : txout total out of range"));
- }
- // Check for duplicate inputs
- set<COutPoint> vInOutPoints;
- BOOST_FOREACH(const CTxIn& txin, vin)
- {
- if (vInOutPoints.count(txin.prevout))
- return false;
- vInOutPoints.insert(txin.prevout);
- }
- if (IsCoinBase())
- {
- if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
- return DoS(100, error("CTransaction::CheckTransaction() : coinbase script size is invalid"));
- }
- else
- {
- BOOST_FOREACH(const CTxIn& txin, vin)
- if (txin.prevout.IsNull())
- return DoS(10, error("CTransaction::CheckTransaction() : prevout is null"));
- }
- return true;
- }
- int64 CTransaction::GetMinFee(unsigned int nBlockSize, bool fAllowFree,
- enum GetMinFee_mode mode, unsigned int nBytes) const
- {
- // Base fee is either MIN_TX_FEE or MIN_RELAY_TX_FEE
- int64 nBaseFee = (mode == GMF_RELAY) ? MIN_RELAY_TX_FEE : MIN_TX_FEE;
- unsigned int nNewBlockSize = nBlockSize + nBytes;
- int64 nMinFee = (1 + (int64)nBytes / 1000) * nBaseFee;
- // To limit dust spam, require MIN_TX_FEE/MIN_RELAY_TX_FEE if any output is less than 0.01
- if (nMinFee < nBaseFee)
- {
- BOOST_FOREACH(const CTxOut& txout, vout)
- if (txout.nValue < CENT)
- nMinFee = nBaseFee;
- }
- // Raise the price as the block approaches full
- if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
- {
- if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
- return MAX_MONEY;
- nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
- }
- if (!MoneyRange(nMinFee))
- nMinFee = MAX_MONEY;
- return nMinFee;
- }
- bool CTxMemPool::accept(CTxDB& txdb, CTransaction &tx, bool fCheckInputs,
- bool* pfMissingInputs)
- {
- if (pfMissingInputs)
- *pfMissingInputs = false;
- if (!tx.CheckTransaction())
- return error("CTxMemPool::accept() : CheckTransaction failed");
- // Coinbase is only valid in a block, not as a loose transaction
- if (tx.IsCoinBase())
- return tx.DoS(100, error("CTxMemPool::accept() : coinbase as individual tx"));
- // ecoin: coinstake is also only valid in a block, not as a loose transaction
- if (tx.IsCoinStake())
- return tx.DoS(100, error("CTxMemPool::accept() : coinstake as individual tx"));
- // To help v0.1.5 clients who would see it as a negative number
- if ((int64)tx.nLockTime > std::numeric_limits<int>::max())
- return error("CTxMemPool::accept() : not accepting nLockTime beyond 2038 yet");
- // Rather not work on nonstandard transactions (unless -testnet)
- if (!fTestNet && !tx.IsStandard())
- return error("CTxMemPool::accept() : nonstandard transaction type");
- // Do we already have it?
- uint256 hash = tx.GetHash();
- {
- LOCK(cs);
- if (mapTx.count(hash))
- return false;
- }
- if (fCheckInputs)
- if (txdb.ContainsTx(hash))
- return false;
- // Check for conflicts with in-memory transactions
- CTransaction* ptxOld = NULL;
- for (unsigned int i = 0; i < tx.vin.size(); i++)
- {
- COutPoint outpoint = tx.vin[i].prevout;
- if (mapNextTx.count(outpoint))
- {
- // Disable replacement feature for now
- return false;
- // Allow replacing with a newer version of the same transaction
- if (i != 0)
- return false;
- ptxOld = mapNextTx[outpoint].ptx;
- if (ptxOld->IsFinal())
- return false;
- if (!tx.IsNewerThan(*ptxOld))
- return false;
- for (unsigned int i = 0; i < tx.vin.size(); i++)
- {
- COutPoint outpoint = tx.vin[i].prevout;
- if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
- return false;
- }
- break;
- }
- }
- if (fCheckInputs)
- {
- MapPrevTx mapInputs;
- map<uint256, CTxIndex> mapUnused;
- bool fInvalid = false;
- if (!tx.FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid))
- {
- if (fInvalid)
- return error("CTxMemPool::accept() : FetchInputs found invalid tx %s", hash.ToString().substr(0,10).c_str());
- if (pfMissingInputs)
- *pfMissingInputs = true;
- return false;
- }
- // Check for non-standard pay-to-script-hash in inputs
- if (!tx.AreInputsStandard(mapInputs) && !fTestNet)
- return error("CTxMemPool::accept() : nonstandard transaction input");
- int64 nFees = tx.GetValueIn(mapInputs)-tx.GetValueOut();
- unsigned int nSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
- int64 txMinFee = tx.GetMinFee(1000, false, GMF_RELAY, nSize);
- if (nFees < txMinFee)
- return error("CTxMemPool::accept() : not enough fees %s, %" PRI64d" < %" PRI64d,
- hash.ToString().c_str(),
- nFees, txMinFee);
- if (nFees < MIN_RELAY_TX_FEE)
- {
- static CCriticalSection cs;
- static double dFreeCount;
- static int64 nLastTime;
- int64 nNow = GetTime();
- {
- LOCK(cs);
- dFreeCount *= pow(1.0 - 1.0/600.0, (double)(nNow - nLastTime));
- nLastTime = nNow;
- if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe(tx))
- return error("CTxMemPool::accept() : free transaction rejected by rate limiter");
- if (fDebug)
- printf("Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
- dFreeCount += nSize;
- }
- }
- if (!tx.ConnectInputs(txdb, mapInputs, mapUnused, CDiskTxPos(1,1,1), pindexBest, false, false))
- {
- return error("CTxMemPool::accept() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str());
- }
- }
- {
- LOCK(cs);
- if (ptxOld)
- {
- printf("CTxMemPool::accept() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
- remove(*ptxOld);
- }
- addUnchecked(hash, tx);
- }
- if (ptxOld)
- EraseFromWallets(ptxOld->GetHash());
- printf("CTxMemPool::accept() : accepted %s (poolsz %" PRIszu")\n",
- hash.ToString().substr(0,10).c_str(),
- mapTx.size());
- return true;
- }
- bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
- {
- return mempool.accept(txdb, *this, fCheckInputs, pfMissingInputs);
- }
- bool CTxMemPool::addUnchecked(const uint256& hash, CTransaction &tx)
- {
- {
- mapTx[hash] = tx;
- for (unsigned int i = 0; i < tx.vin.size(); i++)
- mapNextTx[tx.vin[i].prevout] = CInPoint(&mapTx[hash], i);
- nTransactionsUpdated++;
- }
- return true;
- }
- bool CTxMemPool::remove(CTransaction &tx)
- {
- {
- LOCK(cs);
- uint256 hash = tx.GetHash();
- if (mapTx.count(hash))
- {
- BOOST_FOREACH(const CTxIn& txin, tx.vin)
- mapNextTx.erase(txin.prevout);
- mapTx.erase(hash);
- nTransactionsUpdated++;
- }
- }
- return true;
- }
- void CTxMemPool::clear()
- {
- LOCK(cs);
- mapTx.clear();
- mapNextTx.clear();
- ++nTransactionsUpdated;
- }
- void CTxMemPool::queryHashes(std::vector<uint256>& vtxid)
- {
- vtxid.clear();
- LOCK(cs);
- vtxid.reserve(mapTx.size());
- for (map<uint256, CTransaction>::iterator mi = mapTx.begin(); mi != mapTx.end(); ++mi)
- vtxid.push_back((*mi).first);
- }
- int CMerkleTx::GetDepthInMainChain(CBlockIndex* &pindexRet) const
- {
- if (hashBlock == 0 || nIndex == -1)
- return 0;
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
- if (mi == mapBlockIndex.end())
- return 0;
- CBlockIndex* pindex = (*mi).second;
- if (!pindex || !pindex->IsInMainChain())
- return 0;
- if (!fMerkleVerified)
- {
- if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)
- return 0;
- fMerkleVerified = true;
- }
- pindexRet = pindex;
- return pindexBest->nHeight - pindex->nHeight + 1;
- }
- int CMerkleTx::GetBlocksToMaturity() const
- {
- if (!(IsCoinBase() || IsCoinStake()))
- return 0;
- return max(0, (nCoinbaseMaturity+100) - GetDepthInMainChain()); // increase maturity of mined blocks
- }
- bool CMerkleTx::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs)
- {
- if (fClient)
- {
- if (!IsInMainChain() && !ClientConnectInputs())
- return false;
- return CTransaction::AcceptToMemoryPool(txdb, false);
- }
- else
- {
- return CTransaction::AcceptToMemoryPool(txdb, fCheckInputs);
- }
- }
- bool CMerkleTx::AcceptToMemoryPool()
- {
- CTxDB txdb("r");
- return AcceptToMemoryPool(txdb);
- }
- bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
- {
- {
- LOCK(mempool.cs);
- // Add previous supporting transactions first
- BOOST_FOREACH(CMerkleTx& tx, vtxPrev)
- {
- if (!(tx.IsCoinBase() || tx.IsCoinStake()))
- {
- uint256 hash = tx.GetHash();
- if (!mempool.exists(hash) && !txdb.ContainsTx(hash))
- tx.AcceptToMemoryPool(txdb, fCheckInputs);
- }
- }
- return AcceptToMemoryPool(txdb, fCheckInputs);
- }
- return false;
- }
- bool CWalletTx::AcceptWalletTransaction()
- {
- CTxDB txdb("r");
- return AcceptWalletTransaction(txdb);
- }
- int CTxIndex::GetDepthInMainChain() const
- {
- // Read block header
- CBlock block;
- if (!block.ReadFromDisk(pos.nFile, pos.nBlockPos, false))
- return 0;
- // Find the block in the index
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(block.GetHash());
- if (mi == mapBlockIndex.end())
- return 0;
- CBlockIndex* pindex = (*mi).second;
- if (!pindex || !pindex->IsInMainChain())
- return 0;
- return 1 + nBestHeight - pindex->nHeight;
- }
- bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock)
- {
- {
- LOCK(cs_main);
- {
- LOCK(mempool.cs);
- if (mempool.exists(hash))
- {
- tx = mempool.lookup(hash);
- return true;
- }
- }
- CTxDB txdb("r");
- CTxIndex txindex;
- if (tx.ReadFromDisk(txdb, COutPoint(hash, 0), txindex))
- {
- CBlock block;
- if (block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
- hashBlock = block.GetHash();
- return true;
- }
- }
- return false;
- }
- static CBlockIndex* pblockindexFBBHLast;
- CBlockIndex* FindBlockByHeight(int nHeight)
- {
- CBlockIndex *pblockindex;
- if (nHeight < nBestHeight / 2)
- pblockindex = pindexGenesisBlock;
- else
- pblockindex = pindexBest;
- if (pblockindexFBBHLast && abs(nHeight - pblockindex->nHeight) > abs(nHeight - pblockindexFBBHLast->nHeight))
- pblockindex = pblockindexFBBHLast;
- while (pblockindex->nHeight > nHeight)
- pblockindex = pblockindex->pprev;
- while (pblockindex->nHeight < nHeight)
- pblockindex = pblockindex->pnext;
- pblockindexFBBHLast = pblockindex;
- return pblockindex;
- }
- bool CBlock::ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions)
- {
- if (!fReadTransactions)
- {
- *this = pindex->GetBlockHeader();
- return true;
- }
- if (!ReadFromDisk(pindex->nFile, pindex->nBlockPos, fReadTransactions))
- return false;
- if (GetHash() != pindex->GetBlockHash())
- return error("CBlock::ReadFromDisk() : GetHash() doesn't match index");
- return true;
- }
- uint256 static GetOrphanRoot(const CBlock* pblock)
- {
- // Work back to the first block in the orphan chain
- while (mapOrphanBlocks.count(pblock->hashPrevBlock))
- pblock = mapOrphanBlocks[pblock->hashPrevBlock];
- return pblock->GetHash();
- }
- uint256 WantedByOrphan(const CBlock* pblockOrphan)
- {
- // Work back to the first block in the orphan chain
- while (mapOrphanBlocks.count(pblockOrphan->hashPrevBlock))
- pblockOrphan = mapOrphanBlocks[pblockOrphan->hashPrevBlock];
- return pblockOrphan->hashPrevBlock;
- }
- CBigNum inline GetProofOfStakeLimit(int nHeight, unsigned int nTime)
- {
- if(fTestNet) // separate proof of stake target limit for testnet
- return bnProofOfStakeLimit;
- else
- return bnProofOfStakeLimit;
- return bnProofOfWorkLimit; // return bnProofOfWorkLimit of none matched
- }
- int static StartDigging(unsigned int seed, int minreward, int maxreward)
- {
- boost::mt19937 gen(seed);
- boost::uniform_int<> dist(minreward, maxreward);
- return dist(gen);
- }
- int64 GetProofOfWorkReward(unsigned int nHeight, uint256 hashSeed)
- {
- int64 nSubsidy = 0;
- std::string strHash = hashSeed.ToString().substr(6,7);
- const char* chSeed = strHash.c_str();
- long lSeed = ConvertLong(chSeed);
- int nBlockValue = 0;
- int nMaxSubsidy = 5000;
- int nMinSubsidy = 500;
- int nFlatSubsidy = 5000;
- // doubled the reward to compensate for 2 minute blocks
- if (nHeight > 3295 && nHeight < 22001)
- {
- nMaxSubsidy = nMaxSubsidy*2;
- nMinSubsidy = nMinSubsidy*2;
- }
- // the random reward era,
- if (nHeight <= 22000)
- {
- nBlockValue = StartDigging(lSeed, nMinSubsidy, nMaxSubsidy);
- return nBlockValue * COIN;
- }
- if (nHeight > 22000 && nHeight <= 34750)
- {
- nSubsidy = 5000;
- return nSubsidy * COIN;
- }
- if (nHeight > 34750 && nHeight <= 70037)
- {
- nSubsidy = 2500;
- unsigned int nHeightTemp = nHeight - 34750;
- nSubsidy >>= (nHeightTemp / 5040);
- return nSubsidy * COIN;
- }
- if (nHeight > 70037)
- {
- nSubsidy = 20;
- unsigned int nHeightTemp = nHeight - 70037;
- nSubsidy >>= (nHeightTemp / 262800);
- return nSubsidy * COIN;
- }
- return nSubsidy * COIN;
- }
- int64 GetProofOfStakeReward(int64 nCoinAge, unsigned int nBits, unsigned int nTime, bool bCoinYearOnly)
- {
- int64 nRewardCoinYear, nSubsidy, nSubsidyLimit = 10 * COIN;
- CBigNum bnRewardCoinYearLimit = MAX_MINT_PROOF_OF_STAKE; // Base stake mint rate, 100% year interest
- CBigNum bnTarget;
- bnTarget.SetCompact(nBits);
- CBigNum bnTargetLimit = GetProofOfStakeLimit(0, nTime);
- bnTargetLimit.SetCompact(bnTargetLimit.GetCompact());
- CBigNum bnLowerBound = 5 * CENT, // Lower interest bound is 5% per year
- bnUpperBound = bnRewardCoinYearLimit, // Upper interest bound is 100% per year
- bnMidPart, bnRewardPart;
- while (bnLowerBound + CENT <= bnUpperBound)
- {
- CBigNum bnMidValue = (bnLowerBound + bnUpperBound) / 2;
- if (fDebug && GetBoolArg("-printcreation"))
- printf("GetProofOfStakeReward() : lower=%" PRI64d" upper=%" PRI64d" mid=%" PRI64d"\n", bnLowerBound.getuint64(), bnUpperBound.getuint64(), bnMidValue.getuint64());
- bnMidPart = bnMidValue * bnMidValue * bnMidValue;
- bnRewardPart = bnRewardCoinYearLimit * bnRewardCoinYearLimit * bnRewardCoinYearLimit;
- if (bnMidPart * bnTargetLimit > bnRewardPart * bnTarget)
- bnUpperBound = bnMidValue;
- else
- bnLowerBound = bnMidValue;
- }
- nRewardCoinYear = bnUpperBound.getuint64();
- nRewardCoinYear = min((nRewardCoinYear / CENT) * CENT, MAX_MINT_PROOF_OF_STAKE);
- if(bCoinYearOnly)
- return nRewardCoinYear;
- nSubsidy = (nCoinAge * nRewardCoinYear * 33) / (365 * 33 + 8);
- if(nTime < FORK_FINAL)
- {
- if (fDebug && GetBoolArg("-printcreation") && nSubsidyLimit < nSubsidy)
- printf("GetProofOfStakeReward(): %s is greater than %s, coinstake reward will be truncated\n", FormatMoney(nSubsidy).c_str(), FormatMoney(nSubsidyLimit).c_str());
- nSubsidy = min(nSubsidy, nSubsidyLimit);
- }
- if (fDebug && GetBoolArg("-printcreation"))
- printf("GetProofOfStakeReward(): create=%s nCoinAge=%" PRI64d" nBits=%d\n", FormatMoney(nSubsidy).c_str(), nCoinAge, nBits);
- return nSubsidy;
- }
- static const int64 nTargetTimespan = 4 * 60 * 60; // 4 Hours
- int64 inline GetTargetSpacingWorkMax(int nHeight, unsigned int nTime)
- {
- if(nTime > 1395165600)
- return 3 * nStakeTargetSpacing; // 6 limit block time to 6 minutes
- if(fTestNet)
- return 3 * nStakeTargetSpacing; // 6 minutes on testNet
- return 12 * nStakeTargetSpacing; // 24 mins otherwise
- }
- unsigned int ComputeMaxBits(CBigNum bnTargetLimit, unsigned int nBase, int64 nTime)
- {
- CBigNum bnResult;
- bnResult.SetCompact(nBase);
- bnResult *= 2;
- while (nTime > 0 && bnResult < bnTargetLimit)
- {
- // Maximum 200% adjustment per 4 hours
- bnResult *= 2;
- nTime -= 4 * 60 * 60;
- }
- if (bnResult > bnTargetLimit)
- bnResult = bnTargetLimit;
- return bnResult.GetCompact();
- }
- unsigned int ComputeMinWork(unsigned int nBase, int64 nTime)
- {
- return ComputeMaxBits(bnProofOfWorkLimit, nBase, nTime);
- }
- unsigned int ComputeMinStake(unsigned int nBase, int64 nTime, unsigned int nBlockTime)
- {
- return ComputeMaxBits(GetProofOfStakeLimit(0, nBlockTime), nBase, nTime);
- }
- const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfStake)
- {
- while (pindex && pindex->pprev && (pindex->IsProofOfStake() != fProofOfStake))
- pindex = pindex->pprev;
- return pindex;
- }
- unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfStake)
- {
- CBigNum bnTargetLimit = !fProofOfStake ? bnProofOfWorkLimit : GetProofOfStakeLimit(pindexLast->nHeight, pindexLast->nTime);
- if (pindexLast == NULL)
- return bnTargetLimit.GetCompact(); // genesis block
- const CBlockIndex* pindexPrev = GetLastBlockIndex(pindexLast, fProofOfStake);
- if (pindexPrev->pprev == NULL)
- return bnTargetLimit.GetCompact(); // first block
- const CBlockIndex* pindexPrevPrev = GetLastBlockIndex(pindexPrev->pprev, fProofOfStake);
- if (pindexPrevPrev->pprev == NULL)
- return bnTargetLimit.GetCompact(); // second block
- int64 nActualSpacing = pindexPrev->GetBlockTime() - pindexPrevPrev->GetBlockTime();
- CBigNum bnNew;
- bnNew.SetCompact(pindexPrev->nBits);
- int64 nTargetSpacing = fProofOfStake? nStakeTargetSpacing : min(GetTargetSpacingWorkMax(pindexLast->nHeight, pindexLast->nTime), (int64) nStakeTargetSpacing * (1 + pindexLast->nHeight - pindexPrev->nHeight));
- int64 nInterval = nTargetTimespan / nTargetSpacing;
- bnNew *= ((nInterval - 1) * nTargetSpacing + nActualSpacing + nActualSpacing);
- bnNew /= ((nInterval + 1) * nTargetSpacing);
- if (bnNew > bnTargetLimit)
- bnNew = bnTargetLimit;
- return bnNew.GetCompact();
- }
- bool CheckProofOfWork(uint256 hash, unsigned int nBits)
- {
- CBigNum bnTarget;
- bnTarget.SetCompact(nBits);
- // Check range
- if (bnTarget <= 0 || bnTarget > bnProofOfWorkLimit)
- return error("CheckProofOfWork() : nBits below minimum work");
- // Check proof of work matches claimed amount
- if (hash > bnTarget.getuint256())
- return error("CheckProofOfWork() : hash doesn't match nBits");
- return true;
- }
- // Return maximum amount of blocks that other nodes claim to have
- int GetNumBlocksOfPeers()
- {
- return std::max(cPeerBlockCounts.median(), Checkpoints::GetTotalBlocksEstimate());
- }
- bool IsInitialBlockDownload()
- {
- if (pindexBest == NULL || nBestHeight < Checkpoints::GetTotalBlocksEstimate())
- return true;
- static int64 nLastUpdate;
- static CBlockIndex* pindexLastBest;
- if (pindexBest != pindexLastBest)
- {
- pindexLastBest = pindexBest;
- nLastUpdate = GetTime();
- }
- return (GetTime() - nLastUpdate < 10 &&
- pindexBest->GetBlockTime() < GetTime() - 24 * 60 * 60);
- }
- void static InvalidChainFound(CBlockIndex* pindexNew)
- {
- if (pindexNew->nChainTrust > nBestInvalidTrust)
- {
- nBestInvalidTrust = pindexNew->nChainTrust;
- CTxDB().WriteBestInvalidTrust(CBigNum(nBestInvalidTrust));
- uiInterface.NotifyBlocksChanged();
- }
- uint256 nBestInvalidBlockTrust = pindexNew->nChainTrust - pindexNew->pprev->nChainTrust;
- uint256 nBestBlockTrust = pindexBest->nHeight != 0 ? (pindexBest->nChainTrust - pindexBest->pprev->nChainTrust) : pindexBest->nChainTrust;
- printf("InvalidChainFound: invalid block=%s height=%d trust=%s blocktrust=%" PRI64d" date=%s\n",
- pindexNew->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->nHeight,
- CBigNum(pindexNew->nChainTrust).ToString().c_str(), nBestInvalidBlockTrust.Get64(),
- DateTimeStrFormat("%x %H:%M:%S", pindexNew->GetBlockTime()).c_str());
- printf("InvalidChainFound: current best=%s height=%d trust=%s blocktrust=%" PRI64d" date=%s\n",
- hashBestChain.ToString().substr(0,20).c_str(), nBestHeight,
- CBigNum(pindexBest->nChainTrust).ToString().c_str(),
- nBestBlockTrust.Get64(),
- DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str());
- }
- void CBlock::UpdateTime(const CBlockIndex* pindexPrev)
- {
- nTime = max(GetBlockTime(), GetAdjustedTime());
- }
- bool CTransaction::DisconnectInputs(CTxDB& txdb)
- {
- // Relinquish previous transactions' spent pointers
- if (!IsCoinBase())
- {
- BOOST_FOREACH(const CTxIn& txin, vin)
- {
- COutPoint prevout = txin.prevout;
- // Get prev txindex from disk
- CTxIndex txindex;
- if (!txdb.ReadTxIndex(prevout.hash, txindex))
- return error("DisconnectInputs() : ReadTxIndex failed");
- if (prevout.n >= txindex.vSpent.size())
- return error("DisconnectInputs() : prevout.n out of range");
- // Mark outpoint as not spent
- txindex.vSpent[prevout.n].SetNull();
- // Write back
- if (!txdb.UpdateTxIndex(prevout.hash, txindex))
- return error("DisconnectInputs() : UpdateTxIndex failed");
- }
- }
- txdb.EraseTxIndex(*this);
- return true;
- }
- bool CTransaction::FetchInputs(CTxDB& txdb, const map<uint256, CTxIndex>& mapTestPool,
- bool fBlock, bool fMiner, MapPrevTx& inputsRet, bool& fInvalid)
- {
- fInvalid = false;
- if (IsCoinBase())
- return true; // Coinbase transactions have no inputs to fetch.
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- COutPoint prevout = vin[i].prevout;
- if (inputsRet.count(prevout.hash))
- continue; // Got it already
- // Read txindex
- CTxIndex& txindex = inputsRet[prevout.hash].first;
- bool fFound = true;
- if ((fBlock || fMiner) && mapTestPool.count(prevout.hash))
- {
- // Get txindex from current proposed changes
- txindex = mapTestPool.find(prevout.hash)->second;
- }
- else
- {
- // Read txindex from txdb
- fFound = txdb.ReadTxIndex(prevout.hash, txindex);
- }
- if (!fFound && (fBlock || fMiner))
- return fMiner ? false : error("FetchInputs() : %s prev tx %s index entry not found", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
- // Read txPrev
- CTransaction& txPrev = inputsRet[prevout.hash].second;
- if (!fFound || txindex.pos == CDiskTxPos(1,1,1))
- {
- // Get prev tx from single transactions in memory
- {
- LOCK(mempool.cs);
- if (!mempool.exists(prevout.hash))
- return error("FetchInputs() : %s mempool Tx prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
- txPrev = mempool.lookup(prevout.hash);
- }
- if (!fFound)
- txindex.vSpent.resize(txPrev.vout.size());
- }
- else
- {
- // Get prev tx from disk
- if (!txPrev.ReadFromDisk(txindex.pos))
- return error("FetchInputs() : %s ReadFromDisk prev tx %s failed", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
- }
- }
- // Make sure all prevout.n indexes are valid:
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- const COutPoint prevout = vin[i].prevout;
- assert(inputsRet.count(prevout.hash) != 0);
- const CTxIndex& txindex = inputsRet[prevout.hash].first;
- const CTransaction& txPrev = inputsRet[prevout.hash].second;
- if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())
- {
- fInvalid = true;
- return DoS(100, error("FetchInputs() : %s prevout.n out of range %d %" PRIszu" %" PRIszu" prev tx %s\n%s", GetHash().ToString().substr(0,10).c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().substr(0,10).c_str(), txPrev.ToString().c_str()));
- }
- }
- return true;
- }
- const CTxOut& CTransaction::GetOutputFor(const CTxIn& input, const MapPrevTx& inputs) const
- {
- MapPrevTx::const_iterator mi = inputs.find(input.prevout.hash);
- if (mi == inputs.end())
- throw std::runtime_error("CTransaction::GetOutputFor() : prevout.hash not found");
- const CTransaction& txPrev = (mi->second).second;
- if (input.prevout.n >= txPrev.vout.size())
- throw std::runtime_error("CTransaction::GetOutputFor() : prevout.n out of range");
- return txPrev.vout[input.prevout.n];
- }
- int64 CTransaction::GetValueIn(const MapPrevTx& inputs) const
- {
- if (IsCoinBase())
- return 0;
- int64 nResult = 0;
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- nResult += GetOutputFor(vin[i], inputs).nValue;
- }
- return nResult;
- }
- unsigned int CTransaction::GetP2SHSigOpCount(const MapPrevTx& inputs) const
- {
- if (IsCoinBase())
- return 0;
- unsigned int nSigOps = 0;
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- const CTxOut& prevout = GetOutputFor(vin[i], inputs);
- if (prevout.scriptPubKey.IsPayToScriptHash())
- nSigOps += prevout.scriptPubKey.GetSigOpCount(vin[i].scriptSig);
- }
- return nSigOps;
- }
- bool CTransaction::ConnectInputs(CTxDB& txdb, MapPrevTx inputs, map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
- const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash)
- {
- if (!IsCoinBase())
- {
- int64 nValueIn = 0;
- int64 nFees = 0;
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- COutPoint prevout = vin[i].prevout;
- assert(inputs.count(prevout.hash) > 0);
- CTxIndex& txindex = inputs[prevout.hash].first;
- CTransaction& txPrev = inputs[prevout.hash].second;
- if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())
- return DoS(100, error("ConnectInputs() : %s prevout.n out of range %d %" PRIszu" %" PRIszu" prev tx %s\n%s", GetHash().ToString().substr(0,10).c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().substr(0,10).c_str(), txPrev.ToString().c_str()));
- // If prev is coinbase or coinstake, check that it's matured
- if (txPrev.IsCoinBase() || txPrev.IsCoinStake())
- for (const CBlockIndex* pindex = pindexBlock; pindex && pindexBlock->nHeight - pindex->nHeight < nCoinbaseMaturity; pindex = pindex->pprev)
- if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)
- return error("ConnectInputs() : tried to spend %s at depth %d", txPrev.IsCoinBase() ? "coinbase" : "coinstake", pindexBlock->nHeight - pindex->nHeight);
- // ecoin: check transaction timestamp
- if (txPrev.nTime > nTime)
- return DoS(100, error("ConnectInputs() : transaction timestamp earlier than input transaction"));
- // Check for negative or overflow input values
- nValueIn += txPrev.vout[prevout.n].nValue;
- if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
- return DoS(100, error("ConnectInputs() : txin values out of range"));
- }
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- COutPoint prevout = vin[i].prevout;
- assert(inputs.count(prevout.hash) > 0);
- CTxIndex& txindex = inputs[prevout.hash].first;
- CTransaction& txPrev = inputs[prevout.hash].second;
- if (!txindex.vSpent[prevout.n].IsNull())
- return fMiner ? false : error("ConnectInputs() : %s prev tx already used at %s", GetHash().ToString().substr(0,10).c_str(), txindex.vSpent[prevout.n].ToString().c_str());
- if (!(fBlock && (nBestHeight < Checkpoints::GetTotalBlocksEstimate())))
- {
- // Verify signature
- if (!VerifySignature(txPrev, *this, i, fStrictPayToScriptHash, 0))
- {
- if (fStrictPayToScriptHash && VerifySignature(txPrev, *this, i, false, 0))
- return error("ConnectInputs() : %s P2SH VerifySignature failed", GetHash().ToString().substr(0,10).c_str());
- return DoS(100,error("ConnectInputs() : %s VerifySignature failed", GetHash().ToString().substr(0,10).c_str()));
- }
- }
- // Mark outpoints as spent
- txindex.vSpent[prevout.n] = posThisTx;
- // Write back
- if (fBlock || fMiner)
- {
- mapTestPool[prevout.hash] = txindex;
- }
- }
- if (IsCoinStake())
- {
- // ecoin: coin stake tx earns reward instead of paying fee
- uint64 nCoinAge;
- if (!GetCoinAge(txdb, nCoinAge))
- return error("ConnectInputs() : %s unable to get coin age for coinstake", GetHash().ToString().substr(0,10).c_str());
- int64 nStakeReward = GetValueOut() - nValueIn;
- int64 nCalculatedStakeReward = GetProofOfStakeReward(nCoinAge, pindexBlock->nBits, nTime) - GetMinFee() + MIN_TX_FEE;
- if (nStakeReward > nCalculatedStakeReward)
- return DoS(100, error("ConnectInputs() : coinstake pays too much(actual=%" PRI64d" vs calculated=%" PRI64d")", nStakeReward, nCalculatedStakeReward));
- }
- else
- {
- if (nValueIn < GetValueOut())
- return DoS(100, error("ConnectInputs() : %s value in < value out", GetHash().ToString().substr(0,10).c_str()));
- // Tally transaction fees
- int64 nTxFee = nValueIn - GetValueOut();
- if (nTxFee < 0)
- return DoS(100, error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0,10).c_str()));
- // enforce transaction fees for every block until 1 May 2014 04:00:00 GMT
- if (!fTestNet && nTxFee < GetMinFee())
- return fBlock? DoS(100, error("ConnectInputs() : %s not paying required fee=%s, paid=%s", GetHash().ToString().substr(0,10).c_str(), FormatMoney(GetMinFee()).c_str(), FormatMoney(nTxFee).c_str())) : false;
- nFees += nTxFee;
- if (!MoneyRange(nFees))
- return DoS(100, error("ConnectInputs() : nFees out of range"));
- }
- }
- return true;
- }
- bool CTransaction::ClientConnectInputs()
- {
- if (IsCoinBase())
- return false;
- // Take over previous transactions' spent pointers
- {
- LOCK(mempool.cs);
- int64 nValueIn = 0;
- for (unsigned int i = 0; i < vin.size(); i++)
- {
- // Get prev tx from single transactions in memory
- COutPoint prevout = vin[i].prevout;
- if (!mempool.exists(prevout.hash))
- return false;
- CTransaction& txPrev = mempool.lookup(prevout.hash);
- if (prevout.n >= txPrev.vout.size())
- return false;
- // Verify signature
- if (!VerifySignature(txPrev, *this, i, true, 0))
- return error("ConnectInputs() : VerifySignature failed");
- nValueIn += txPrev.vout[prevout.n].nValue;
- if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
- return error("ClientConnectInputs() : txin values out of range");
- }
- if (GetValueOut() > nValueIn)
- return false;
- }
- return true;
- }
- bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)
- {
- // Disconnect in reverse order
- for (int i = vtx.size()-1; i >= 0; i--)
- if (!vtx[i].DisconnectInputs(txdb))
- return false;
- if (pindex->pprev)
- {
- CDiskBlockIndex blockindexPrev(pindex->pprev);
- blockindexPrev.hashNext = 0;
- if (!txdb.WriteBlockIndex(blockindexPrev))
- return error("DisconnectBlock() : WriteBlockIndex failed");
- }
- // ecoin: clean up wallet after disconnecting coinstake
- BOOST_FOREACH(CTransaction& tx, vtx)
- SyncWithWallets(tx, this, false, false);
- return true;
- }
- string SearchTermV2(const char *chAddress)
- {
- int nLength = strlen(chAddress);
- return string(&chAddress[nLength-2], 2);
- }
- string SearchTerm(const char *chAddress)
- {
- int nLength = strlen(chAddress);
- return string(&chAddress[nLength-3], 3);
- }
- bool fAddrMiner (const char *chHash, const char *chTerm)
- {
- for (int i = 0; i < strlen(chHash); ++i)
- {
- if (strncmp (&chHash[i], chTerm, strlen(chTerm)) == 0)
- return true;
- }
- return false;
- }
- bool CheckProofOfTxSearch(std::vector<boost::tuple<unsigned int, int64, CEcoinAddress> > vATrans)
- {
- unsigned int nBlockHeight;
- bool fMatch = false;
- // Values the should be
- bool fCalcMatch = false;
- int64 nCalcValue;
- CEcoinAddress addrCalcMatch;
- // Values in proposed block
- bool fActMatch = false;
- int64 nActValue;
- CEcoinAddress addrActMatch;
- // Get values from transaction record
- if (vATrans.size() > 1)
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> tATrans = vATrans[1];
- nBlockHeight = tATrans.get<0>();
- nActValue = tATrans.get<1>();
- addrActMatch = tATrans.get<2>();
- fActMatch = true;
- }
- else
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> tATrans = vATrans[0];
- nBlockHeight = tATrans.get<0>();
- nActValue = tATrans.get<1>();
- addrActMatch = tATrans.get<2>();
- fActMatch = false;
- }
- CBlock block;
- CBlockIndex* pblockindex = FindBlockByHeight(nBlockHeight);
- uint256 hashLastBlock = pblockindex->GetBlockHash();
- pblockindex = mapBlockIndex[hashLastBlock];
- block.ReadFromDisk(pblockindex, true);
- CMerkleTx txGen(block.vtx[0]);
- txGen.SetMerkleBranch(&block);
- nCalcValue = (GetProofOfWorkReward(nBlockHeight+1, hashLastBlock));
- if (!fMatch && nBlockHeight+1 > 57000 && block.vtx.size() <= 20)
- {
- BOOST_FOREACH (const CTransaction& tx, block.vtx)
- {
- if (tx.vout.size() <= 3)
- {
- for (unsigned int i = 0; i < tx.vout.size(); i++)
- {
- const CTxOut& txout = tx.vout[i];
- if (txout.nValue / 1000000 > 1)
- {
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- const char* pszAddress = CEcoinAddress(addr).ToString().c_str();
- CScript addrHex = CScript() << vector<unsigned char>((const unsigned char*)pszAddress, (const unsigned char*)pszAddress + strlen(pszAddress));
- string strSearch = SearchTermV2(addrHex.ToString().c_str());
- if (fAddrMiner(hashLastBlock.GetHex().c_str(), strSearch.c_str()))
- {
- addrCalcMatch = CEcoinAddress(addr);
- fCalcMatch = true;
- fMatch = true;
- }
- else
- {
- fCalcMatch = false;
- fMatch = false;
- }
- }
- }
- }
- }
- else
- {
- unsigned int iv = 0;
- if (tx.vout.size() > 10)
- iv = 10;
- else
- iv = tx.vout.size();
- for (unsigned int i = 0; i < iv; i++)
- {
- const CTxOut& txout = tx.vout[i];
- if (txout.nValue / 1000000 > 1)
- {
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- const char* pszAddress = CEcoinAddress(addr).ToString().c_str();
- CScript addrHex = CScript() << vector<unsigned char>((const unsigned char*)pszAddress, (const unsigned char*)pszAddress + strlen(pszAddress));
- string strSearch = SearchTerm(addrHex.ToString().c_str());
- if (fAddrMiner(hashLastBlock.GetHex().c_str(), strSearch.c_str()))
- {
- addrCalcMatch = CEcoinAddress(addr);
- fCalcMatch = true;
- fMatch = true;
- }
- else
- {
- fCalcMatch = false;
- fMatch = false;
- }
- }
- }
- }
- }
- }
- }
- if (!fMatch && block.vtx.size() < 11 && nBlockHeight+1 > 22000 && nBlockHeight+1 <= 57000)
- {
- BOOST_FOREACH (const CTransaction& tx, block.vtx)
- {
- if (tx.vout.size() < 11)
- {
- for (unsigned int i = 0; i < tx.vout.size(); i++)
- {
- const CTxOut& txout = tx.vout[i];
- if (txout.nValue / 1000000 > 500)
- {
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- const char* pszAddress = CEcoinAddress(addr).ToString().c_str();
- CScript addrHex = CScript() << vector<unsigned char>((const unsigned char*)pszAddress, (const unsigned char*)pszAddress + strlen(pszAddress));
- string strSearch = SearchTerm(addrHex.ToString().c_str());
- if (fAddrMiner(hashLastBlock.GetHex().c_str(), strSearch.c_str()))
- {
- addrCalcMatch = CEcoinAddress(addr);
- fCalcMatch = true;
- fMatch = true;
- }
- else
- {
- fCalcMatch = false;
- fMatch = false;
- }
- }
- }
- }
- }
- else
- {
- for (unsigned int i = 0; i < 5; i++)
- {
- const CTxOut& txout = tx.vout[i];
- if (txout.nValue / 1000000 > 500)
- {
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- const char* pszAddress = CEcoinAddress(addr).ToString().c_str();
- CScript addrHex = CScript() << vector<unsigned char>((const unsigned char*)pszAddress, (const unsigned char*)pszAddress + strlen(pszAddress));
- string strSearch = SearchTerm(addrHex.ToString().c_str());
- if (fAddrMiner(hashLastBlock.GetHex().c_str(), strSearch.c_str()))
- {
- addrCalcMatch = CEcoinAddress(addr);
- fCalcMatch = true;
- fMatch = true;
- }
- else
- {
- fCalcMatch = false;
- fMatch = false;
- }
- }
- }
- }
- }
- }
- }
- if (!fMatch && nBlockHeight+1 < 22001 && nBlockHeight > 0)
- {
- BOOST_FOREACH (const CTransaction& tx, block.vtx)
- {
- for (unsigned int i = 0; i < tx.vout.size(); i++)
- {
- const CTxOut& txout = tx.vout[i];
- if (txout.nValue / 1000000 > 500)
- {
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- const char* pszAddress = CEcoinAddress(addr).ToString().c_str();
- CScript addrHex = CScript() << vector<unsigned char>((const unsigned char*)pszAddress, (const unsigned char*)pszAddress + strlen(pszAddress));
- string strSearch = SearchTerm(addrHex.ToString().c_str());
- if (fAddrMiner(hashLastBlock.GetHex().c_str(), strSearch.c_str()))
- {
- addrCalcMatch = CEcoinAddress(addr);
- fCalcMatch = true;
- fMatch = true;
- }
- else
- {
- fCalcMatch = false;
- fMatch = false;
- }
- }
- }
- }
- }
- }
- if (nBlockHeight > 0)
- {
- if (!fCalcMatch)
- {
- if (fCalcMatch != fActMatch)
- return false;
- if (nCalcValue != nActValue)
- return false;
- }
- else
- {
- if (nBlockHeight+1 > 57000)
- {
- if (fCalcMatch != fActMatch)
- return false;
- if ((nCalcValue/100)*5 != nActValue)
- return false;
- if (addrCalcMatch.ToString() != addrActMatch.ToString())
- return false;
- }
- else
- {
- nCalcValue = nCalcValue/2;
- if (fCalcMatch != fActMatch)
- return false;
- if (nCalcValue != nActValue)
- return false;
- if (addrCalcMatch.ToString() != addrActMatch.ToString())
- return false;
- }
- }
- }
- return true;
- }
- bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
- {
- // Check it again in case a previous version let a bad block in, but skip BlockSig checking
- if (!CheckBlock(!fJustCheck, !fJustCheck, false))
- return false;
- bool fEnforceBIP30 = true; // Always active in Ecoin
- bool fStrictPayToScriptHash = true; // Always active in Ecoin
- unsigned int nTxPos;
- if (fJustCheck)
- nTxPos = 1;
- else
- nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(vtx.size());
- map<uint256, CTxIndex> mapQueuedChanges;
- int64 nFees = 0;
- int64 nValueIn = 0;
- int64 nValueOut = 0;
- unsigned int nSigOps = 0;
- BOOST_FOREACH(CTransaction& tx, vtx)
- {
- uint256 hashTx = tx.GetHash();
- if (fEnforceBIP30) {
- CTxIndex txindexOld;
- if (txdb.ReadTxIndex(hashTx, txindexOld)) {
- BOOST_FOREACH(CDiskTxPos &pos, txindexOld.vSpent)
- if (pos.IsNull())
- return false;
- }
- }
- nSigOps += tx.GetLegacySigOpCount();
- if (nSigOps > MAX_BLOCK_SIGOPS)
- return DoS(100, error("ConnectBlock() : too many sigops"));
- CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);
- if (!fJustCheck)
- nTxPos += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION);
- MapPrevTx mapInputs;
- if (tx.IsCoinBase())
- nValueOut += tx.GetValueOut();
- else
- {
- bool fInvalid;
- if (!tx.FetchInputs(txdb, mapQueuedChanges, true, false, mapInputs, fInvalid))
- return false;
- if (fStrictPayToScriptHash)
- {
- nSigOps += tx.GetP2SHSigOpCount(mapInputs);
- if (nSigOps > MAX_BLOCK_SIGOPS)
- return DoS(100, error("ConnectBlock() : too many sigops"));
- }
- int64 nTxValueIn = tx.GetValueIn(mapInputs);
- int64 nTxValueOut = tx.GetValueOut();
- nValueIn += nTxValueIn;
- nValueOut += nTxValueOut;
- if (!tx.IsCoinStake())
- nFees += nTxValueIn - nTxValueOut;
- if (!tx.ConnectInputs(txdb, mapInputs, mapQueuedChanges, posThisTx, pindex, true, false, fStrictPayToScriptHash))
- return false;
- }
- mapQueuedChanges[hashTx] = CTxIndex(posThisTx, tx.vout.size());
- }
- // ecoin: track money supply and mint amount info
- pindex->nMint = nValueOut - nValueIn + nFees;
- pindex->nMoneySupply = (pindex->pprev? pindex->pprev->nMoneySupply : 0) + nValueOut - nValueIn;
- if (!txdb.WriteBlockIndex(CDiskBlockIndex(pindex)))
- return error("Connect() : WriteBlockIndex for pindex failed");
- if (fDebug && GetBoolArg("-printcreation"))
- printf("ConnectBlock() : destroy=%s nFees=%" PRI64d"\n", FormatMoney(nFees).c_str(), nFees);
- if (fJustCheck)
- return true;
- // Write queued txindex changes
- for (map<uint256, CTxIndex>::iterator mi = mapQueuedChanges.begin(); mi != mapQueuedChanges.end(); ++mi)
- {
- if (!txdb.UpdateTxIndex((*mi).first, (*mi).second))
- return error("ConnectBlock() : UpdateTxIndex failed");
- }
- // The memory index structure will be changed after the db commits.
- if (pindex->pprev)
- {
- CDiskBlockIndex blockindexPrev(pindex->pprev);
- blockindexPrev.hashNext = pindex->GetBlockHash();
- if (!txdb.WriteBlockIndex(blockindexPrev))
- return error("ConnectBlock() : WriteBlockIndex failed");
- }
- uint256 prevHash = 0;
- if(pindex->pprev)
- prevHash = pindex->pprev->GetBlockHash();
- int64 nReward = GetProofOfWorkReward(pindex->pprev->nHeight+1, prevHash);
- // Check coinbase reward
- if (vtx[0].GetValueOut() > nReward)
- return DoS(50, error("ConnectBlock() : coinbase reward exceeded (actual=%" PRI64d" vs calculated=%" PRI64d") at Height=%d", vtx[0].GetValueOut(), nReward, pindex->pprev->nHeight+1));
- if (vtx[0].vout.size() > 1)
- printf("ACCEPTED: proof-of-transaction block at height %d\n", pindex->pprev->nHeight+1);
- if (pindex->pprev->nHeight+1 > 57000 && !pindex->IsProofOfStake() && !pindex->pprev->IsProofOfStake() && vtx.size() <= 20) // epsylon
- {
- std::vector < boost::tuple<unsigned int, int64, CEcoinAddress> > vTrans;
- for(unsigned int i = 0; i < vtx[0].vout.size(); i++)
- {
- const CTxOut& txout = vtx[0].vout[i];
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> cTrans = boost::make_tuple(pindex->pprev->nHeight, txout.nValue, CEcoinAddress(addr));
- vTrans.push_back(cTrans);
- }
- }
- if (!CheckProofOfTxSearch(vTrans))
- {
- return DoS(50, error("CheckCoinbaseTx() : calculated coinbase %" PRI64d", desination, or address do not match the actual block %d\n", nReward, pindex->pprev->nHeight+1));
- }
- }
- else if (pindex->pprev->nHeight+1 > 22000 && pindex->pprev->nHeight+1 <= 57000 && !pindex->IsProofOfStake() && !pindex->pprev->IsProofOfStake() && vtx.size() < 11)
- {
- std::vector < boost::tuple<unsigned int, int64, CEcoinAddress> > vTrans;
- for(unsigned int i = 0; i < vtx[0].vout.size(); i++)
- {
- const CTxOut& txout = vtx[0].vout[i];
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> cTrans = boost::make_tuple(pindex->pprev->nHeight, txout.nValue, CEcoinAddress(addr));
- vTrans.push_back(cTrans);
- }
- }
- if (!CheckProofOfTxSearch(vTrans))
- {
- return DoS(50, error("CheckCoinbaseTx() : calculated coinbase %" PRI64d", desination, or address do not match the actual block %d\n", nReward, pindex->pprev->nHeight+1));
- }
- }
- else if (pindex->pprev->nHeight+1 > 12400 && pindex->pprev->nHeight+1 < 22001 && !pindex->IsProofOfStake() && !pindex->pprev->IsProofOfStake() && (pindex->GetBlockTime() - pindex->pprev->GetBlockTime()) < 300 && vtx.size() < 6)
- {
- std::vector < boost::tuple<unsigned int, int64, CEcoinAddress> > vTrans;
- for(unsigned int i = 0; i < vtx[0].vout.size(); i++)
- {
- const CTxOut& txout = vtx[0].vout[i];
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> cTrans = boost::make_tuple(pindex->pprev->nHeight, txout.nValue, CEcoinAddress(addr));
- vTrans.push_back(cTrans);
- }
- }
- if (!CheckProofOfTxSearch(vTrans))
- {
- return DoS(50, error("CheckCoinbaseTx() : calculated coinbase %" PRI64d", desination, or address do not match the actual block %d\n", nReward, pindex->pprev->nHeight+1));
- }
- }
- else if (pindex->pprev->nHeight+1 <= 12400 && !pindex->IsProofOfStake() && !pindex->pprev->IsProofOfStake())
- {
- std::vector < boost::tuple<unsigned int, int64, CEcoinAddress> > vTrans;
- for(unsigned int i = 0; i < vtx[0].vout.size(); i++)
- {
- const CTxOut& txout = vtx[0].vout[i];
- txnouttype type;
- vector<CTxDestination> vAddresses;
- int nRequired;
- ExtractDestinations(txout.scriptPubKey, type, vAddresses, nRequired);
- BOOST_FOREACH(const CTxDestination& addr, vAddresses)
- {
- boost::tuple<unsigned int, int64, CEcoinAddress> cTrans = boost::make_tuple(pindex->pprev->nHeight, txout.nValue, CEcoinAddress(addr));
- vTrans.push_back(cTrans);
- }
- }
- if (!CheckProofOfTxSearch(vTrans))
- {
- return DoS(50, error("CheckCoinbaseTx() : calculated coinbase %" PRI64d", desination, or address do not match the actual block %d\n", nReward, pindex->pprev->nHeight+1));
- }
- }
- BOOST_FOREACH(CTransaction& tx, vtx)
- SyncWithWallets(tx, this, true);
- return true;
- }
- bool static Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
- {
- printf("REORGANIZE\n");
- // Find the fork
- CBlockIndex* pfork = pindexBest;
- CBlockIndex* plonger = pindexNew;
- while (pfork != plonger)
- {
- while (plonger->nHeight > pfork->nHeight)
- if (!(plonger = plonger->pprev))
- return error("Reorganize() : plonger->pprev is null");
- if (pfork == plonger)
- break;
- if (!(pfork = pfork->pprev))
- return error("Reorganize() : pfork->pprev is null");
- }
- // List of what to disconnect
- vector<CBlockIndex*> vDisconnect;
- for (CBlockIndex* pindex = pindexBest; pindex != pfork; pindex = pindex->pprev)
- vDisconnect.push_back(pindex);
- // List of what to connect
- vector<CBlockIndex*> vConnect;
- for (CBlockIndex* pindex = pindexNew; pindex != pfork; pindex = pindex->pprev)
- vConnect.push_back(pindex);
- reverse(vConnect.begin(), vConnect.end());
- printf("REORGANIZE: Disconnect %" PRIszu" blocks; %s..%s\n", vDisconnect.size(), pfork->GetBlockHash().ToString().substr(0,20).c_str(), pindexBest->GetBlockHash().ToString().substr(0,20).c_str());
- printf("REORGANIZE: Connect %" PRIszu" blocks; %s..%s\n", vConnect.size(), pfork->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->GetBlockHash().ToString().substr(0,20).c_str());
- // Disconnect shorter branch
- vector<CTransaction> vResurrect;
- BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
- {
- CBlock block;
- if (!block.ReadFromDisk(pindex))
- return error("Reorganize() : ReadFromDisk for disconnect failed");
- if (!block.DisconnectBlock(txdb, pindex))
- return error("Reorganize() : DisconnectBlock %s failed", pindex->GetBlockHash().ToString().substr(0,20).c_str());
- // Queue memory transactions to resurrect
- BOOST_FOREACH(const CTransaction& tx, block.vtx)
- if (!(tx.IsCoinBase() || tx.IsCoinStake()))
- vResurrect.push_back(tx);
- }
- // Connect longer branch
- vector<CTransaction> vDelete;
- for (unsigned int i = 0; i < vConnect.size(); i++)
- {
- CBlockIndex* pindex = vConnect[i];
- CBlock block;
- if (!block.ReadFromDisk(pindex))
- return error("Reorganize() : ReadFromDisk for connect failed");
- if (!block.ConnectBlock(txdb, pindex))
- {
- // Invalid block
- return error("Reorganize() : ConnectBlock %s failed", pindex->GetBlockHash().ToString().substr(0,20).c_str());
- }
- // Queue memory transactions to delete
- BOOST_FOREACH(const CTransaction& tx, block.vtx)
- vDelete.push_back(tx);
- }
- if (!txdb.WriteHashBestChain(pindexNew->GetBlockHash()))
- return error("Reorganize() : WriteHashBestChain failed");
- // Make sure it's successfully written to disk before changing memory structure
- if (!txdb.TxnCommit())
- return error("Reorganize() : TxnCommit failed");
- // Disconnect shorter branch
- BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
- if (pindex->pprev)
- pindex->pprev->pnext = NULL;
- // Connect longer branch
- BOOST_FOREACH(CBlockIndex* pindex, vConnect)
- if (pindex->pprev)
- pindex->pprev->pnext = pindex;
- // Resurrect memory transactions that were in the disconnected branch
- BOOST_FOREACH(CTransaction& tx, vResurrect)
- tx.AcceptToMemoryPool(txdb, false);
- // Delete redundant memory transactions that are in the connected branch
- BOOST_FOREACH(CTransaction& tx, vDelete)
- mempool.remove(tx);
- printf("REORGANIZE: done\n");
- return true;
- }
- bool CBlock::SetBestChainInner(CTxDB& txdb, CBlockIndex *pindexNew)
- {
- uint256 hash = GetHash();
- // Adding to current best branch
- if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
- {
- txdb.TxnAbort();
- InvalidChainFound(pindexNew);
- return false;
- }
- if (!txdb.TxnCommit())
- return error("SetBestChain() : TxnCommit failed");
- // Add to current best branch
- pindexNew->pprev->pnext = pindexNew;
- // Delete redundant memory transactions
- BOOST_FOREACH(CTransaction& tx, vtx)
- mempool.remove(tx);
- return true;
- }
- bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
- {
- uint256 hash = GetHash();
- if (!txdb.TxnBegin())
- return error("SetBestChain() : TxnBegin failed");
- if (pindexGenesisBlock == NULL && hash == (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet))
- {
- txdb.WriteHashBestChain(hash);
- if (!txdb.TxnCommit())
- return error("SetBestChain() : TxnCommit failed");
- pindexGenesisBlock = pindexNew;
- }
- else if (hashPrevBlock == hashBestChain)
- {
- if (!SetBestChainInner(txdb, pindexNew))
- return error("SetBestChain() : SetBestChainInner failed");
- }
- else
- {
- // the first block in the new chain that will cause it to become the new best chain
- CBlockIndex *pindexIntermediate = pindexNew;
- // list of blocks that need to be connected afterwards
- std::vector<CBlockIndex*> vpindexSecondary;
- // Reorganize is costly in terms of db load, as it works in a single db transaction.
- // Try to limit how much needs to be done inside
- while (pindexIntermediate->pprev && pindexIntermediate->pprev->nChainTrust > pindexBest->nChainTrust)
- {
- vpindexSecondary.push_back(pindexIntermediate);
- pindexIntermediate = pindexIntermediate->pprev;
- }
- if (!vpindexSecondary.empty())
- printf("Postponing %" PRIszu" reconnects\n", vpindexSecondary.size());
- // Switch to new best branch
- if (!Reorganize(txdb, pindexIntermediate))
- {
- txdb.TxnAbort();
- InvalidChainFound(pindexNew);
- return error("SetBestChain() : Reorganize failed");
- }
- // Connect further blocks
- BOOST_REVERSE_FOREACH(CBlockIndex *pindex, vpindexSecondary)
- {
- CBlock block;
- if (!block.ReadFromDisk(pindex))
- {
- printf("SetBestChain() : ReadFromDisk failed\n");
- break;
- }
- if (!txdb.TxnBegin()) {
- printf("SetBestChain() : TxnBegin 2 failed\n");
- break;
- }
- // errors now are not fatal, we still did a reorganisation to a new chain in a valid way
- if (!block.SetBestChainInner(txdb, pindex))
- break;
- }
- }
- // Update best block in wallet (so we can detect restored wallets)
- bool fIsInitialDownload = IsInitialBlockDownload();
- if (!fIsInitialDownload)
- {
- const CBlockLocator locator(pindexNew);
- ::SetBestChain(locator);
- }
- // New best block
- hashBestChain = hash;
- pindexBest = pindexNew;
- pblockindexFBBHLast = NULL;
- nBestHeight = pindexBest->nHeight;
- nBestChainTrust = pindexNew->nChainTrust;
- nTimeBestReceived = GetTime();
- nTransactionsUpdated++;
- uint256 nBestBlockTrust = pindexBest->nHeight != 0 ? (pindexBest->nChainTrust - pindexBest->pprev->nChainTrust) : pindexBest->nChainTrust;
- printf("SetBestChain: new best=%s height=%d trust=%s blocktrust=%" PRI64d" date=%s\n",
- hashBestChain.ToString().substr(0,20).c_str(), nBestHeight,
- CBigNum(nBestChainTrust).ToString().c_str(),
- nBestBlockTrust.Get64(),
- DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str());
- // Check the version of the last 100 blocks to see if we need to upgrade:
- if (!fIsInitialDownload)
- {
- int nUpgraded = 0;
- const CBlockIndex* pindex = pindexBest;
- for (int i = 0; i < 100 && pindex != NULL; i++)
- {
- if (pindex->nVersion > CBlock::CURRENT_VERSION)
- ++nUpgraded;
- pindex = pindex->pprev;
- }
- if (nUpgraded > 0)
- printf("SetBestChain: %d of last 100 blocks above version %d\n", nUpgraded, CBlock::CURRENT_VERSION);
- if (nUpgraded > 100/2)
- // strMiscWarning is read by GetWarnings(), called by Qt and the JSON-RPC code to warn the user:
- strMiscWarning = _("Warning: This version is obsolete, upgrade required!");
- }
- std::string strCmd = GetArg("-blocknotify", "");
- if (!fIsInitialDownload && !strCmd.empty())
- {
- boost::replace_all(strCmd, "%s", hashBestChain.GetHex());
- boost::thread t(runCommand, strCmd); // thread runs free
- }
- return true;
- }
- bool CTransaction::GetCoinAge(CTxDB& txdb, uint64& nCoinAge) const
- {
- CBigNum bnCentSecond = 0; // coin age in the unit of cent-seconds
- nCoinAge = 0;
- if (IsCoinBase())
- return true;
- BOOST_FOREACH(const CTxIn& txin, vin)
- {
- // First try finding the previous transaction in database
- CTransaction txPrev;
- CTxIndex txindex;
- if (!txPrev.ReadFromDisk(txdb, txin.prevout, txindex))
- continue; // previous transaction not in main chain
- if (nTime < txPrev.nTime)
- return false; // Transaction timestamp violation
- // Read block header
- CBlock block;
- if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
- return false; // unable to read block of previous transaction
- if (block.GetBlockTime() + nStakeMinAge > nTime)
- continue; // only count coins meeting min age requirement
- int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
- bnCentSecond += CBigNum(nValueIn) * (nTime-txPrev.nTime) / CENT;
- if (fDebug && GetBoolArg("-printcoinage"))
- printf("coin age nValueIn=%" PRI64d" nTimeDiff=%d bnCentSecond=%s\n", nValueIn, nTime - txPrev.nTime, bnCentSecond.ToString().c_str());
- }
- CBigNum bnCoinDay = bnCentSecond * CENT / COIN / (24 * 60 * 60);
- if (fDebug && GetBoolArg("-printcoinage"))
- printf("coin age bnCoinDay=%s\n", bnCoinDay.ToString().c_str());
- nCoinAge = bnCoinDay.getuint64();
- return true;
- }
- // ecoin: total coin age spent in block, in the unit of coin-days.
- bool CBlock::GetCoinAge(uint64& nCoinAge) const
- {
- nCoinAge = 0;
- CTxDB txdb("r");
- BOOST_FOREACH(const CTransaction& tx, vtx)
- {
- uint64 nTxCoinAge;
- if (tx.GetCoinAge(txdb, nTxCoinAge))
- nCoinAge += nTxCoinAge;
- else
- return false;
- }
- if (nCoinAge == 0) // block coin age minimum 1 coin-day
- nCoinAge = 1;
- if (fDebug && GetBoolArg("-printcoinage"))
- printf("block coin age total nCoinDays=%" PRI64d"\n", nCoinAge);
- return true;
- }
- bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
- {
- // Check for duplicate
- uint256 hash = GetHash();
- if (mapBlockIndex.count(hash))
- return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,20).c_str());
- // Construct new block index object
- CBlockIndex* pindexNew = new CBlockIndex(nFile, nBlockPos, *this);
- if (!pindexNew)
- return error("AddToBlockIndex() : new CBlockIndex failed");
- pindexNew->phashBlock = &hash;
- map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);
- if (miPrev != mapBlockIndex.end())
- {
- pindexNew->pprev = (*miPrev).second;
- pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
- }
- // ecoin: compute chain trust score
- pindexNew->nChainTrust = (pindexNew->pprev ? pindexNew->pprev->nChainTrust : 0) + pindexNew->GetBlockTrust();
- // ecoin: compute stake entropy bit for stake modifier
- if (!pindexNew->SetStakeEntropyBit(GetStakeEntropyBit(pindexNew->nTime)))
- return error("AddToBlockIndex() : SetStakeEntropyBit() failed");
- // ecoin: record proof-of-stake hash value
- if (pindexNew->IsProofOfStake())
- {
- if (!mapProofOfStake.count(hash))
- return error("AddToBlockIndex() : hashProofOfStake not found in map");
- pindexNew->hashProofOfStake = mapProofOfStake[hash];
- }
- // ecoin: compute stake modifier
- uint64 nStakeModifier = 0;
- bool fGeneratedStakeModifier = false;
- if (!ComputeNextStakeModifier(pindexNew->pprev, nStakeModifier, fGeneratedStakeModifier))
- return error("AddToBlockIndex() : ComputeNextStakeModifier() failed");
- pindexNew->SetStakeModifier(nStakeModifier, fGeneratedStakeModifier);
- pindexNew->nStakeModifierChecksum = GetStakeModifierChecksum(pindexNew);
- if (!CheckStakeModifierCheckpoints(pindexNew->nHeight, pindexNew->nStakeModifierChecksum))
- return error("AddToBlockIndex() : Rejected by stake modifier checkpoint height=%u, modifier=0x%016llx pindexNew->nStakeModifierChecksum=0x%08llx", pindexNew->nHeight, nStakeModifier, pindexNew->nStakeModifierChecksum);
- // Add to mapBlockIndex
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
- if (pindexNew->IsProofOfStake())
- setStakeSeen.insert(make_pair(pindexNew->prevoutStake, pindexNew->nStakeTime));
- pindexNew->phashBlock = &((*mi).first);
- // Write to disk block index
- CTxDB txdb;
- if (!txdb.TxnBegin())
- return false;
- txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
- if (!txdb.TxnCommit())
- return false;
- // New best
- if (pindexNew->nChainTrust > nBestChainTrust)
- if (!SetBestChain(txdb, pindexNew))
- return false;
- if (pindexNew == pindexBest)
- {
- // Notify UI to display prev block's coinbase if it was ours
- static uint256 hashPrevBestCoinBase;
- UpdatedTransaction(hashPrevBestCoinBase);
- hashPrevBestCoinBase = vtx[0].GetHash();
- }
- uiInterface.NotifyBlocksChanged();
- return true;
- }
- bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckSig) const
- {
- // Size limits
- if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
- return DoS(100, error("CheckBlock() : size limits failed"));
- // Check proof of work matches claimed amount
- if (fCheckPOW && IsProofOfWork() && !CheckProofOfWork(GetHash(), nBits))
- return DoS(50, error("CheckBlock() : proof of work failed"));
- // Check timestamp
- if (GetBlockTime() > FutureDrift(GetAdjustedTime()))
- return error("CheckBlock() : block timestamp too far in the future");
- // First transaction must be coinbase, the rest must not be
- if (vtx.empty() || !vtx[0].IsCoinBase())
- return DoS(100, error("CheckBlock() : first tx is not coinbase"));
- for (unsigned int i = 1; i < vtx.size(); i++)
- if (vtx[i].IsCoinBase())
- return DoS(100, error("CheckBlock() : more than one coinbase"));
- // Check coinbase timestamp
- if (GetBlockTime() > FutureDrift((int64)vtx[0].nTime))
- return DoS(50, error("CheckBlock() : coinbase timestamp is too early"));
- if (IsProofOfStake())
- {
- // Coinbase output should be empty if proof-of-stake block
- if (vtx[0].vout.size() != 1 || !vtx[0].vout[0].IsEmpty())
- return DoS(100, error("CheckBlock() : coinbase output not empty for proof-of-stake block"));
- // Second transaction must be coinstake, the rest must not be
- if (vtx.empty() || !vtx[1].IsCoinStake())
- return DoS(100, error("CheckBlock() : second tx is not coinstake"));
- for (unsigned int i = 2; i < vtx.size(); i++)
- if (vtx[i].IsCoinStake())
- return DoS(100, error("CheckBlock() : more than one coinstake"));
- // Check coinstake timestamp
- if (!CheckCoinStakeTimestamp(GetBlockTime(), (int64)vtx[1].nTime))
- return DoS(50, error("CheckBlock() : coinstake timestamp violation nTimeBlock=%" PRI64d" nTimeTx=%u", GetBlockTime(), vtx[1].nTime));
- // Ecoin: check proof-of-stake block signature
- if (fCheckSig && !CheckBlockSignature(true))
- return DoS(100, error("CheckBlock() : bad proof-of-stake block signature"));
- }
- else
- {
- // Check coinbase reward is not 0
- if (vtx[0].GetValueOut() == 0 && GetHash() != hashGenesisBlock && GetHash() != hashGenesisBlockTestNet)
- return DoS(50, error("CheckBlock() : 0 value block bad chain (actual=%" PRI64d")", vtx[0].GetValueOut()));
- }
- // Check transactions
- BOOST_FOREACH(const CTransaction& tx, vtx)
- {
- if (!tx.CheckTransaction())
- return DoS(tx.nDoS, error("CheckBlock() : CheckTransaction failed"));
- // ecoin: check transaction timestamp
- if (GetBlockTime() < (int64)tx.nTime)
- return DoS(50, error("CheckBlock() : block timestamp earlier than transaction timestamp"));
- }
- set<uint256> uniqueTx;
- BOOST_FOREACH(const CTransaction& tx, vtx)
- {
- uniqueTx.insert(tx.GetHash());
- }
- if (uniqueTx.size() != vtx.size())
- return DoS(100, error("CheckBlock() : duplicate transaction"));
- unsigned int nSigOps = 0;
- BOOST_FOREACH(const CTransaction& tx, vtx)
- {
- nSigOps += tx.GetLegacySigOpCount();
- }
- if (nSigOps > MAX_BLOCK_SIGOPS)
- return DoS(100, error("CheckBlock() : out-of-bounds SigOpCount"));
- // Check merkle root
- if (fCheckMerkleRoot && hashMerkleRoot != BuildMerkleTree())
- return DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"));
- return true;
- }
- bool CBlock::AcceptBlock()
- {
- // Check for duplicate
- uint256 hash = GetHash();
- if (mapBlockIndex.count(hash))
- return error("AcceptBlock() : block already in mapBlockIndex");
- // Get prev block index
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
- if (mi == mapBlockIndex.end())
- return DoS(10, error("AcceptBlock() : prev block not found"));
- CBlockIndex* pindexPrev = (*mi).second;
- int nHeight = pindexPrev->nHeight+1;
- // Check proof-of-work or proof-of-stake
- if (nBits != GetNextTargetRequired(pindexPrev, IsProofOfStake()) && nHeight > 3280)
- return DoS(100, error("AcceptBlock() : incorrect %s", IsProofOfWork() ? "proof-of-work" : "proof-of-stake"));
- // Check timestamp against prev
- if (GetBlockTime() <= pindexPrev->GetMedianTimePast() || FutureDrift(GetBlockTime()) < pindexPrev->GetBlockTime())
- return error("AcceptBlock() : block's timestamp is too early");
- // Check that all transactions are finalized
- BOOST_FOREACH(const CTransaction& tx, vtx)
- if (!tx.IsFinal(nHeight, GetBlockTime()))
- return DoS(10, error("AcceptBlock() : contains a non-final transaction"));
- // Check that the block chain matches the known block chain up to a checkpoint
- if (!Checkpoints::CheckHardened(nHeight, hash))
- return DoS(100, error("AcceptBlock() : rejected by hardened checkpoint lock-in at %d", nHeight));
- bool cpSatisfies = Checkpoints::CheckSync(hash, pindexPrev);
- // Check that the block satisfies synchronized checkpoint
- if (CheckpointsMode == Checkpoints::STRICT && !cpSatisfies)
- return error("AcceptBlock() : rejected by synchronized checkpoint");
- if (CheckpointsMode == Checkpoints::ADVISORY && !cpSatisfies)
- strMiscWarning = _("WARNING: syncronized checkpoint violation detected, but skipped!");
- // Enforce rule that the coinbase starts with serialized block height
- CScript expect = CScript() << nHeight;
- if (vtx[0].vin[0].scriptSig.size() < expect.size() ||
- !std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin()))
- return DoS(100, error("AcceptBlock() : block height mismatch in coinbase"));
- // Write block to history file
- if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION)))
- return error("AcceptBlock() : out of disk space");
- unsigned int nFile = -1;
- unsigned int nBlockPos = 0;
- if (!WriteToDisk(nFile, nBlockPos))
- return error("AcceptBlock() : WriteToDisk failed");
- if (!AddToBlockIndex(nFile, nBlockPos))
- return error("AcceptBlock() : AddToBlockIndex failed");
- // Relay inventory, but don't relay old inventory during initial block download
- int nBlockEstimate = Checkpoints::GetTotalBlocksEstimate();
- if (hashBestChain == hash)
- {
- LOCK(cs_vNodes);
- BOOST_FOREACH(CNode* pnode, vNodes)
- if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : nBlockEstimate))
- pnode->PushInventory(CInv(MSG_BLOCK, hash));
- }
- // ecoin: check pending sync-checkpoint
- Checkpoints::AcceptPendingSyncCheckpoint();
- return true;
- }
- uint256 CBlockIndex::GetBlockTrust() const
- {
- CBigNum bnTarget;
- bnTarget.SetCompact(nBits);
- if (bnTarget <= 0)
- return 0;
- // Calculate work amount for block
- uint256 nPoWTrust = (CBigNum(nPoWBase) / (bnTarget+1)).getuint256();
- // Set nPowTrust to 1 if we are checking PoS block or PoW difficulty is too low
- nPoWTrust = (IsProofOfStake() || nPoWTrust < 1) ? 1 : nPoWTrust;
- // Return nPoWTrust for the first 12 blocks
- if (pprev == NULL || pprev->nHeight < 12)
- return nPoWTrust;
- const CBlockIndex* currentIndex = pprev;
- if(IsProofOfStake())
- {
- CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);
- // Return 1/3 of score if parent block is not the PoW block
- if (!pprev->IsProofOfWork())
- return (bnNewTrust / 3).getuint256();
- int nPoWCount = 0;
- // Check last 12 blocks type
- while (pprev->nHeight - currentIndex->nHeight < 12)
- {
- if (currentIndex->IsProofOfWork())
- nPoWCount++;
- currentIndex = currentIndex->pprev;
- }
- // Return 1/3 of score if less than 3 PoW blocks found
- if (nPoWCount < 3)
- return (bnNewTrust / 3).getuint256();
- return bnNewTrust.getuint256();
- }
- else
- {
- CBigNum bnLastBlockTrust = CBigNum(pprev->nChainTrust - pprev->pprev->nChainTrust);
- // Return nPoWTrust + 2/3 of previous block score if two parent blocks are not PoS blocks
- if (!(pprev->IsProofOfStake() && pprev->pprev->IsProofOfStake()))
- return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();
- int nPoSCount = 0;
- // Check last 12 blocks type
- while (pprev->nHeight - currentIndex->nHeight < 12)
- {
- if (currentIndex->IsProofOfStake())
- nPoSCount++;
- currentIndex = currentIndex->pprev;
- }
- // Return nPoWTrust + 2/3 of previous block score if less than 7 PoS blocks found
- if (nPoSCount < 7)
- return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();
- bnTarget.SetCompact(pprev->nBits);
- if (bnTarget <= 0)
- return 0;
- CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);
- // Return nPoWTrust + full trust score for previous block nBits
- return nPoWTrust + bnNewTrust.getuint256();
- }
- }
- bool CBlockIndex::IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired, unsigned int nToCheck)
- {
- unsigned int nFound = 0;
- for (unsigned int i = 0; i < nToCheck && nFound < nRequired && pstart != NULL; i++)
- {
- if (pstart->nVersion >= minVersion)
- ++nFound;
- pstart = pstart->pprev;
- }
- return (nFound >= nRequired);
- }
- bool ProcessBlock(CNode* pfrom, CBlock* pblock)
- {
- // Check for duplicate
- uint256 hash = pblock->GetHash();
- if (mapBlockIndex.count(hash))
- return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, hash.ToString().substr(0,20).c_str());
- if (mapOrphanBlocks.count(hash))
- return error("ProcessBlock() : already have block (orphan) %s", hash.ToString().substr(0,20).c_str());
- // ecoin: check proof-of-stake
- if (pblock->IsProofOfStake() && setStakeSeen.count(pblock->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash) && !Checkpoints::WantedByPendingSyncCheckpoint(hash))
- return error("ProcessBlock() : duplicate proof-of-stake (%s, %d) for block %s", pblock->GetProofOfStake().first.ToString().c_str(), pblock->GetProofOfStake().second, hash.ToString().c_str());
- // Preliminary checks
- if (!pblock->CheckBlock())
- return error("ProcessBlock() : CheckBlock FAILED");
- // ecoin: verify hash target and signature of coinstake tx
- if (pblock->IsProofOfStake())
- {
- uint256 hashProofOfStake = 0, targetProofOfStake = 0;
- if (!CheckProofOfStake(pblock->vtx[1], pblock->nBits, hashProofOfStake, targetProofOfStake))
- {
- printf("WARNING: ProcessBlock(): check proof-of-stake failed for block %s\n", hash.ToString().c_str());
- return false; // do not error here as we expect this during initial block download
- }
- if (!mapProofOfStake.count(hash)) // add to mapProofOfStake
- mapProofOfStake.insert(make_pair(hash, hashProofOfStake));
- }
- CBlockIndex* pcheckpoint = Checkpoints::GetLastSyncCheckpoint();
- if (pcheckpoint && pblock->hashPrevBlock != hashBestChain && !Checkpoints::WantedByPendingSyncCheckpoint(hash))
- {
- // Extra checks to prevent "fill up memory by spamming with bogus blocks"
- int64 deltaTime = pblock->GetBlockTime() - pcheckpoint->nTime;
- CBigNum bnNewBlock;
- bnNewBlock.SetCompact(pblock->nBits);
- CBigNum bnRequired;
- if (pblock->IsProofOfStake())
- bnRequired.SetCompact(ComputeMinStake(GetLastBlockIndex(pcheckpoint, true)->nBits, deltaTime, pblock->nTime));
- else
- bnRequired.SetCompact(ComputeMinWork(GetLastBlockIndex(pcheckpoint, false)->nBits, deltaTime));
- if (bnNewBlock > bnRequired)
- {
- if (pfrom)
- pfrom->Misbehaving(100);
- return error("ProcessBlock() : block with too little %s", pblock->IsProofOfStake()? "proof-of-stake" : "proof-of-work");
- }
- }
- // ecoin: ask for pending sync-checkpoint if any
- if (!IsInitialBlockDownload())
- Checkpoints::AskForPendingSyncCheckpoint(pfrom);
- // If don't already have its previous block, shunt it off to holding area until we get it
- if (!mapBlockIndex.count(pblock->hashPrevBlock))
- {
- printf("ProcessBlock: ORPHAN BLOCK, prev=%s\n", pblock->hashPrevBlock.ToString().substr(0,20).c_str());
- CBlock* pblock2 = new CBlock(*pblock);
- // ecoin: check proof-of-stake
- if (pblock2->IsProofOfStake())
- {
- // Limited duplicity on stake: prevents block flood attack
- // Duplicate stake allowed only when there is orphan child block
- if (setStakeSeenOrphan.count(pblock2->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash) && !Checkpoints::WantedByPendingSyncCheckpoint(hash))
- return error("ProcessBlock() : duplicate proof-of-stake (%s, %d) for orphan block %s", pblock2->GetProofOfStake().first.ToString().c_str(), pblock2->GetProofOfStake().second, hash.ToString().c_str());
- else
- setStakeSeenOrphan.insert(pblock2->GetProofOfStake());
- }
- mapOrphanBlocks.insert(make_pair(hash, pblock2));
- mapOrphanBlocksByPrev.insert(make_pair(pblock2->hashPrevBlock, pblock2));
- // Ask this guy to fill in what we're missing
- if (pfrom)
- {
- pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock2));
- // ecoin: getblocks may not obtain the ancestor block rejected
- // earlier by duplicate-stake check so we ask for it again directly
- if (!IsInitialBlockDownload())
- pfrom->AskFor(CInv(MSG_BLOCK, WantedByOrphan(pblock2)));
- }
- return true;
- }
- // Store to disk
- if (!pblock->AcceptBlock())
- return error("ProcessBlock() : AcceptBlock FAILED");
- // Recursively process any orphan blocks that depended on this one
- vector<uint256> vWorkQueue;
- vWorkQueue.push_back(hash);
- for (unsigned int i = 0; i < vWorkQueue.size(); i++)
- {
- uint256 hashPrev = vWorkQueue[i];
- for (multimap<uint256, CBlock*>::iterator mi = mapOrphanBlocksByPrev.lower_bound(hashPrev);
- mi != mapOrphanBlocksByPrev.upper_bound(hashPrev);
- ++mi)
- {
- CBlock* pblockOrphan = (*mi).second;
- if (pblockOrphan->AcceptBlock())
- vWorkQueue.push_back(pblockOrphan->GetHash());
- mapOrphanBlocks.erase(pblockOrphan->GetHash());
- setStakeSeenOrphan.erase(pblockOrphan->GetProofOfStake());
- delete pblockOrphan;
- }
- mapOrphanBlocksByPrev.erase(hashPrev);
- }
- printf("ProcessBlock: ACCEPTED\n");
- // ecoin: if responsible for sync-checkpoint send it
- if (pfrom && !CSyncCheckpoint::strMasterPrivKey.empty())
- Checkpoints::SendSyncCheckpoint(Checkpoints::AutoSelectSyncCheckpoint());
- return true;
- }
- // ecoin: attempt to generate suitable proof-of-stake
- bool CBlock::SignBlock(CWallet& wallet)
- {
- if (!vtx[0].vout[0].IsEmpty())
- return false;
- if (IsProofOfStake())
- return true;
- static int64 nLastCoinStakeSearchTime = GetAdjustedTime(); // startup timestamp
- CKey key;
- CTransaction txCoinStake;
- int64 nSearchTime = txCoinStake.nTime; // search to current time
- if (nSearchTime > nLastCoinStakeSearchTime)
- {
- if (wallet.CreateCoinStake(wallet, nBits, nSearchTime-nLastCoinStakeSearchTime, txCoinStake, key))
- {
- if (txCoinStake.nTime >= max(pindexBest->GetMedianTimePast()+1, PastDrift(pindexBest->GetBlockTime())))
- {
- vtx[0].nTime = nTime = txCoinStake.nTime;
- nTime = max(pindexBest->GetMedianTimePast()+1, GetMaxTransactionTime());
- nTime = max(GetBlockTime(), PastDrift(pindexBest->GetBlockTime()));
- for (vector<CTransaction>::iterator it = vtx.begin(); it != vtx.end();)
- if (it->nTime > nTime) { it = vtx.erase(it); } else { ++it; }
- vtx.insert(vtx.begin() + 1, txCoinStake);
- hashMerkleRoot = BuildMerkleTree();
- // append a signature to our block
- return key.Sign(GetHash(), vchBlockSig);
- }
- }
- nLastCoinStakeSearchInterval = nSearchTime - nLastCoinStakeSearchTime;
- nLastCoinStakeSearchTime = nSearchTime;
- }
- return false;
- }
- // ecoin: check block signature
- bool CBlock::CheckBlockSignature(bool fProofOfStake) const
- {
- if (GetHash() == (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet))
- return vchBlockSig.empty();
- vector<valtype> vSolutions;
- txnouttype whichType;
- if(fProofOfStake)
- {
- const CTxOut& txout = vtx[1].vout[1];
- if (!Solver(txout.scriptPubKey, whichType, vSolutions))
- return false;
- if (whichType == TX_PUBKEY)
- {
- valtype& vchPubKey = vSolutions[0];
- CKey key;
- if (!key.SetPubKey(vchPubKey))
- return false;
- if (vchBlockSig.empty())
- return false;
- return key.Verify(GetHash(), vchBlockSig);
- }
- }
- else
- {
- for(unsigned int i = 0; i < vtx[0].vout.size(); i++)
- {
- const CTxOut& txout = vtx[0].vout[i];
- if (!Solver(txout.scriptPubKey, whichType, vSolutions))
- return false;
- if (whichType == TX_PUBKEY)
- {
- // Verify
- valtype& vchPubKey = vSolutions[0];
- CKey key;
- if (!key.SetPubKey(vchPubKey))
- continue;
- if (vchBlockSig.empty())
- continue;
- if(!key.Verify(GetHash(), vchBlockSig))
- continue;
- return true;
- }
- }
- }
- return false;
- }
- bool CheckDiskSpace(uint64 nAdditionalBytes)
- {
- uint64 nFreeBytesAvailable = boost::filesystem::space(GetDataDir()).available;
- if (nFreeBytesAvailable < nMinDiskSpace + nAdditionalBytes)
- {
- fShutdown = true;
- string strMessage = _("Warning: Disk space is low!");
- strMiscWarning = strMessage;
- printf("*** %s\n", strMessage.c_str());
- uiInterface.ThreadSafeMessageBox(strMessage, "Ecoin", CClientUIInterface::OK | CClientUIInterface::ICON_EXCLAMATION | CClientUIInterface::MODAL);
- StartShutdown();
- return false;
- }
- return true;
- }
- static boost::filesystem::path BlockFilePath(unsigned int nFile)
- {
- string strBlockFn = strprintf("blk%04u.dat", nFile);
- return GetDataDir() / strBlockFn;
- }
- FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode)
- {
- if ((nFile < 1) || (nFile == (unsigned int) -1))
- return NULL;
- FILE* file = fopen(BlockFilePath(nFile).string().c_str(), pszMode);
- if (!file)
- return NULL;
- if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))
- {
- if (fseek(file, nBlockPos, SEEK_SET) != 0)
- {
- fclose(file);
- return NULL;
- }
- }
- return file;
- }
- static unsigned int nCurrentBlockFile = 1;
- FILE* AppendBlockFile(unsigned int& nFileRet)
- {
- nFileRet = 0;
- while (true)
- {
- FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");
- if (!file)
- return NULL;
- if (fseek(file, 0, SEEK_END) != 0)
- return NULL;
- // FAT32 file size max 4GB, fseek and ftell max 2GB, so we must stay under 2GB
- if (ftell(file) < (long)(0x7F000000 - MAX_SIZE))
- {
- nFileRet = nCurrentBlockFile;
- return file;
- }
- fclose(file);
- nCurrentBlockFile++;
- }
- }
- bool LoadBlockIndex(bool fAllowNew)
- {
- CBigNum bnTrustedModulus;
- if (fTestNet)
- {
- pchMessageStart[0] = 0xcd;
- pchMessageStart[1] = 0xf2;
- pchMessageStart[2] = 0xc0;
- pchMessageStart[3] = 0xef;
- bnTrustedModulus.SetHex("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");
- bnProofOfWorkLimit = bnProofOfWorkLimitTestNet; // 16 bits PoW target limit for testnet
- nStakeMinAge = 1 * 60 * 60; // test net min age is 2 hours
- nModifierInterval = 20 * 60; // test modifier interval is 20 minutes
- nCoinbaseMaturity = 10; // test maturity is 10 blocks
- nStakeTargetSpacing = 1 * 30; // test block spacing is 1 minutes
- }
- else
- {
- bnTrustedModulus.SetHex("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");
- }
- // Set up the Zerocoin Params object
- ZCParams = new libzerocoin::Params(bnTrustedModulus);
- // Load block index
- CTxDB txdb("cr+");
- if (!txdb.LoadBlockIndex())
- return false;
- // Init with genesis block
- if (mapBlockIndex.empty())
- {
- if (!fAllowNew)
- return false;
- CTransaction txNew;
- CBlock block;
- // ECOIN - Genesis Block (core+testnet)
- if(!fTestNet) {
- const char* pszTimestamp = "03012021 - ECOin: P2P Crypto Economy";
- txNew.vin.resize(1);
- txNew.vout.resize(1);
- txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(9999) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
- txNew.vout[0].scriptPubKey = CScript() << ParseHex("045d0773e7224ee40c6e69755c0343022b8f125f218a5ec5f6e57b31c00e182e048807d7e66548148795c1dfa4c972b6792ad41efea33111c5fc0d6c86fc0383f1") << OP_CHECKSIG;
- txNew.nTime = 1610833657;
- block.vtx.push_back(txNew);
- block.hashPrevBlock = 0;
- block.hashMerkleRoot = block.BuildMerkleTree();
- block.nVersion = 1;
- block.nTime = 1610833657;
- block.nBits = bnProofOfWorkLimit.GetCompact();
- block.nNonce = 2279607535;
- // hash.Merkle
- assert(block.hashMerkleRoot == uint256("0xdfa5e1e80d8ace5c4c80ad61983a89b9639fd754ba8c057d5d23e4b7b0fd7c49"));
- } else {
- const char* pszTimestamp = "03012021 - ECOin-TESTNET: P2P Crypto Economy";
- txNew.vin.resize(1);
- txNew.vout.resize(1);
- txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(9999) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
- txNew.vout[0].nValue = 1 * COIN;
- txNew.vout[0].scriptPubKey = CScript() << ParseHex("045d0773e7224ee40c6e69755c0343022b8f125f218a5ec5f6e57b31c00e182e048807d7e66548148795c1dfa4c972b6792ad41efea33111c5fc0d6c86fc0383f1") << OP_CHECKSIG;
- txNew.nTime = 1610833657;
- block.vtx.push_back(txNew);
- block.hashPrevBlock = 0;
- block.hashMerkleRoot = block.BuildMerkleTree();
- block.nVersion = 1;
- block.nTime = 1610833657;
- block.nBits = bnProofOfWorkLimit.GetCompact();
- block.nNonce = 2279256980;
- // hash.Merkle
- assert(block.hashMerkleRoot == uint256("0x552ccecaa4a1d38d3f2319faebef5292143fd81eb2e84d2d5456f2b580692d3a"));
- }
- //// debug print
- uint256 hash = block.GetHash();
- printf("Found ECOIN Genesis Block:\n");
- printf("Hash: %s\n", hash.ToString().c_str());
- printf("GenesisBlock: %s\n", hashGenesisBlock.ToString().c_str());
- printf("MerkleHash: %s\n", block.hashMerkleRoot.ToString().c_str());
- printf("Min nBit: %08x\n", bnProofOfWorkLimit.GetCompact());
- // ECOIN: If genesis block hash does not match, then generate new genesis hash.
- if (block.GetHash() != hashGenesisBlock)
- {
- printf("Searching for ECOIN Genesis Block...\n");
- // This will figure out a valid hash and Nonce if you're creating a different genesis block:
- uint256 hashTarget = CBigNum().SetCompact(block.nBits).getuint256();
- uint256 thash;
- while(true)
- {
- thash = scrypt_blockhash(BEGIN(block.nVersion));
- if (thash <= hashTarget)
- break;
- if ((block.nNonce & 0xFFF) == 0)
- {
- printf("nonce %08X: hash = %s (target = %s)\n", block.nNonce, thash.ToString().c_str(), hashTarget.ToString().c_str());
- }
- ++block.nNonce;
- if (block.nNonce == 0)
- {
- printf("NONCE WRAPPED, incrementing time\n");
- ++block.nTime;
- }
- }
- printf("block.nTime = %u \n", block.nTime);
- printf("block.nNonce = %u \n", block.nNonce);
- printf("block.GetHash = %s\n", block.GetHash().ToString().c_str());
- }
- block.print();
- if(!fTestNet) {
- assert(hash == hashGenesisBlock);
- } else {
- assert(hash == hashGenesisBlockTestNet);
- }
- // Start new block file
- unsigned int nFile;
- unsigned int nBlockPos;
- if (!block.WriteToDisk(nFile, nBlockPos))
- return error("LoadBlockIndex() : writing genesis block to disk failed");
- if (!block.AddToBlockIndex(nFile, nBlockPos))
- return error("LoadBlockIndex() : genesis block not accepted");
- // ecoin: initialize synchronized checkpoint
- if (!Checkpoints::WriteSyncCheckpoint((!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet)))
- return error("LoadBlockIndex() : failed to init sync checkpoint");
- }
- string strPubKey = "";
- // if checkpoint master key changed must reset sync-checkpoint
- if (!txdb.ReadCheckpointPubKey(strPubKey) || strPubKey != CSyncCheckpoint::strMasterPubKey)
- {
- // write checkpoint master key to db
- txdb.TxnBegin();
- if (!txdb.WriteCheckpointPubKey(CSyncCheckpoint::strMasterPubKey))
- return error("LoadBlockIndex() : failed to write new checkpoint master key to db");
- if (!txdb.TxnCommit())
- return error("LoadBlockIndex() : failed to commit new checkpoint master key to db");
- if ((!fTestNet) && !Checkpoints::ResetSyncCheckpoint())
- return error("LoadBlockIndex() : failed to reset sync-checkpoint");
- }
- return true;
- }
- void PrintBlockTree()
- {
- // pre-compute tree structure
- map<CBlockIndex*, vector<CBlockIndex*> > mapNext;
- for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
- {
- CBlockIndex* pindex = (*mi).second;
- mapNext[pindex->pprev].push_back(pindex);
- }
- vector<pair<int, CBlockIndex*> > vStack;
- vStack.push_back(make_pair(0, pindexGenesisBlock));
- int nPrevCol = 0;
- while (!vStack.empty())
- {
- int nCol = vStack.back().first;
- CBlockIndex* pindex = vStack.back().second;
- vStack.pop_back();
- // print split or gap
- if (nCol > nPrevCol)
- {
- for (int i = 0; i < nCol-1; i++)
- printf("| ");
- printf("|\\\n");
- }
- else if (nCol < nPrevCol)
- {
- for (int i = 0; i < nCol; i++)
- printf("| ");
- printf("|\n");
- }
- nPrevCol = nCol;
- // print columns
- for (int i = 0; i < nCol; i++)
- printf("| ");
- // print item
- CBlock block;
- block.ReadFromDisk(pindex);
- printf("%d (%u,%u) %s %08x %s mint %7s tx %" PRIszu"",
- pindex->nHeight,
- pindex->nFile,
- pindex->nBlockPos,
- block.GetHash().ToString().c_str(),
- block.nBits,
- DateTimeStrFormat("%x %H:%M:%S", block.GetBlockTime()).c_str(),
- FormatMoney(pindex->nMint).c_str(),
- block.vtx.size());
- PrintWallets(block);
- // put the main time-chain first
- vector<CBlockIndex*>& vNext = mapNext[pindex];
- for (unsigned int i = 0; i < vNext.size(); i++)
- {
- if (vNext[i]->pnext)
- {
- swap(vNext[0], vNext[i]);
- break;
- }
- }
- // iterate children
- for (unsigned int i = 0; i < vNext.size(); i++)
- vStack.push_back(make_pair(nCol+i, vNext[i]));
- }
- }
- bool LoadExternalBlockFile(FILE* fileIn)
- {
- int64 nStart = GetTimeMillis();
- int nLoaded = 0;
- {
- LOCK(cs_main);
- try {
- CAutoFile blkdat(fileIn, SER_DISK, CLIENT_VERSION);
- unsigned int nPos = 0;
- while (nPos != (unsigned int)-1 && blkdat.good() && !fRequestShutdown)
- {
- unsigned char pchData[65536];
- do {
- fseek(blkdat, nPos, SEEK_SET);
- int nRead = fread(pchData, 1, sizeof(pchData), blkdat);
- if (nRead <= 8)
- {
- nPos = (unsigned int)-1;
- break;
- }
- void* nFind = memchr(pchData, pchMessageStart[0], nRead+1-sizeof(pchMessageStart));
- if (nFind)
- {
- if (memcmp(nFind, pchMessageStart, sizeof(pchMessageStart))==0)
- {
- nPos += ((unsigned char*)nFind - pchData) + sizeof(pchMessageStart);
- break;
- }
- nPos += ((unsigned char*)nFind - pchData) + 1;
- }
- else
- nPos += sizeof(pchData) - sizeof(pchMessageStart) + 1;
- } while(!fRequestShutdown);
- if (nPos == (unsigned int)-1)
- break;
- fseek(blkdat, nPos, SEEK_SET);
- unsigned int nSize;
- blkdat >> nSize;
- if (nSize > 0 && nSize <= MAX_BLOCK_SIZE)
- {
- CBlock block;
- blkdat >> block;
- if (ProcessBlock(NULL,&block))
- {
- nLoaded++;
- nPos += 4 + nSize;
- }
- }
- }
- }
- catch (std::exception &e) {
- printf("%s() : Deserialize or I/O error caught during load\n",
- __PRETTY_FUNCTION__);
- }
- }
- printf("Loaded %i blocks from external file in %" PRI64d"ms\n", nLoaded, GetTimeMillis() - nStart);
- return nLoaded > 0;
- }
- extern map<uint256, CAlert> mapAlerts;
- extern CCriticalSection cs_mapAlerts;
- string GetWarnings(string strFor)
- {
- int nPriority = 0;
- string strStatusBar;
- string strRPC;
- if (GetBoolArg("-testsafemode"))
- strRPC = "test";
- // Misc warnings like out of disk space and clock is wrong
- if (strMiscWarning != "")
- {
- nPriority = 1000;
- strStatusBar = strMiscWarning;
- }
- // if detected invalid checkpoint enter safe mode
- if (Checkpoints::hashInvalidCheckpoint != 0)
- {
- nPriority = 3000;
- strStatusBar = strRPC = _("WARNING: Invalid checkpoint found! Displayed transactions may not be correct! You may need to upgrade, or notify developers.");
- }
- // Alerts
- {
- LOCK(cs_mapAlerts);
- BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
- {
- const CAlert& alert = item.second;
- if (alert.AppliesToMe() && alert.nPriority > nPriority)
- {
- nPriority = alert.nPriority;
- strStatusBar = alert.strStatusBar;
- if (nPriority > 1000)
- strRPC = strStatusBar;
- }
- }
- }
- if (strFor == "statusbar")
- return strStatusBar;
- else if (strFor == "rpc")
- return strRPC;
- assert(!"GetWarnings() : invalid parameter");
- return "error";
- }
- bool static AlreadyHave(CTxDB& txdb, const CInv& inv)
- {
- switch (inv.type)
- {
- case MSG_TX:
- {
- bool txInMap = false;
- {
- LOCK(mempool.cs);
- txInMap = (mempool.exists(inv.hash));
- }
- return txInMap ||
- mapOrphanTransactions.count(inv.hash) ||
- txdb.ContainsTx(inv.hash);
- }
- case MSG_BLOCK:
- return mapBlockIndex.count(inv.hash) ||
- mapOrphanBlocks.count(inv.hash);
- }
- return true;
- }
- unsigned char pchMessageStart[4] = { 0xcf, 0xd1, 0xe8, 0xea };
- bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
- {
- if (pfrom->nStartingHeight == 15553)
- {
- printf("partner %s on a forked chain 15553 version %i; disconnecting\n", pfrom->addr.ToString().c_str(), pfrom->nVersion);
- pfrom->Misbehaving(100);
- pfrom->fDisconnect = true;
- }
- static map<CService, CPubKey> mapReuseKey;
- RandAddSeedPerfmon();
- if (fDebug)
- printf("received: %s (%" PRIszu" bytes)\n", strCommand.c_str(), vRecv.size());
- if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
- {
- printf("dropmessagestest DROPPING RECV MESSAGE\n");
- return true;
- }
- if (strCommand == "version")
- {
- // Each connection can only send one version message
- if (pfrom->nVersion != 0)
- {
- pfrom->Misbehaving(1);
- return false;
- }
- int64 nTime;
- CAddress addrMe;
- CAddress addrFrom;
- uint64 nNonce = 1;
- bool badVersion = false;
- vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
- if (pfrom->nVersion < MIN_PROTO_VERSION)
- {
- printf("partner %s using obsolete version %i; disconnecting\n", pfrom->addr.ToString().c_str(), pfrom->nVersion);
- pfrom->fDisconnect = true;
- return false;
- }
- if(nTime > 1400198400) // Fri, 16 May 2014 00:00:00 GMT
- {
- if(pfrom->nVersion < 70009)
- badVersion = true;
- }
- else
- {
- if(pfrom->nVersion < 70007)
- badVersion = true;
- }
- if(badVersion)
- {
- printf("partner %s using obsolete version %i; disconnecting\n", pfrom->addr.ToString().c_str(), pfrom->nVersion);
- pfrom->fDisconnect = true;
- return false;
- }
- if (!vRecv.empty())
- vRecv >> addrFrom >> nNonce;
- if (!vRecv.empty())
- vRecv >> pfrom->strSubVer;
- if (!vRecv.empty())
- vRecv >> pfrom->nStartingHeight;
- if (pfrom->fInbound && addrMe.IsRoutable())
- {
- pfrom->addrLocal = addrMe;
- SeenLocal(addrMe);
- }
- // Disconnect if we connected to ourself
- if (nNonce == nLocalHostNonce && nNonce > 1)
- {
- printf("connected to self at %s, disconnecting\n", pfrom->addr.ToString().c_str());
- pfrom->fDisconnect = true;
- return true;
- }
- // record my external IP reported by peer
- if (addrFrom.IsRoutable() && addrMe.IsRoutable())
- addrSeenByPeer = addrMe;
- // Be shy and don't send version until we hear
- if (pfrom->fInbound)
- pfrom->PushVersion();
- pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);
- AddTimeData(pfrom->addr, nTime);
- // Change version
- pfrom->PushMessage("verack");
- pfrom->vSend.SetVersion(min(pfrom->nVersion, PROTOCOL_VERSION));
- if (!pfrom->fInbound)
- {
- // Advertise our address
- if (!fNoListen && !IsInitialBlockDownload())
- {
- CAddress addr = GetLocalAddress(&pfrom->addr);
- if (addr.IsRoutable())
- pfrom->PushAddress(addr);
- }
- // Get recent addresses
- if (pfrom->fOneShot || pfrom->nVersion >= CADDR_TIME_VERSION || addrman.size() < 1000)
- {
- pfrom->PushMessage("getaddr");
- pfrom->fGetAddr = true;
- }
- addrman.Good(pfrom->addr);
- } else {
- if (((CNetAddr)pfrom->addr) == (CNetAddr)addrFrom)
- {
- addrman.Add(addrFrom, addrFrom);
- addrman.Good(addrFrom);
- }
- }
- // Ask the first connected node for block updates
- static int nAskedForBlocks = 0;
- if (!pfrom->fClient && !pfrom->fOneShot &&
- (pfrom->nStartingHeight > (nBestHeight - 144)) &&
- (pfrom->nVersion < NOBLKS_VERSION_START ||
- pfrom->nVersion >= NOBLKS_VERSION_END) &&
- (nAskedForBlocks < 1 || vNodes.size() <= 1) && (pfrom->nStartingHeight != 15553)) // don't download from fork 15553
- {
- nAskedForBlocks++;
- pfrom->PushGetBlocks(pindexBest, uint256(0));
- }
- // Relay alerts
- {
- LOCK(cs_mapAlerts);
- BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
- item.second.RelayTo(pfrom);
- }
- // Relay sync-checkpoint
- {
- LOCK(Checkpoints::cs_hashSyncCheckpoint);
- if (!Checkpoints::checkpointMessage.IsNull())
- Checkpoints::checkpointMessage.RelayTo(pfrom);
- }
- pfrom->fSuccessfullyConnected = true;
- printf("receive version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", pfrom->nVersion, pfrom->nStartingHeight, addrMe.ToString().c_str(), addrFrom.ToString().c_str(), pfrom->addr.ToString().c_str());
- cPeerBlockCounts.input(pfrom->nStartingHeight);
- // ecoin: ask for pending sync-checkpoint if any
- if (!IsInitialBlockDownload())
- Checkpoints::AskForPendingSyncCheckpoint(pfrom);
- }
- else if (pfrom->nVersion == 0)
- {
- // Must have a version message before anything else
- pfrom->Misbehaving(1);
- return false;
- }
- else if (strCommand == "verack")
- {
- pfrom->vRecv.SetVersion(min(pfrom->nVersion, PROTOCOL_VERSION));
- }
- else if (strCommand == "addr")
- {
- vector<CAddress> vAddr;
- vRecv >> vAddr;
- // Don't want addr from older versions unless seeding
- if (pfrom->nVersion < CADDR_TIME_VERSION && addrman.size() > 1000)
- return true;
- if (vAddr.size() > 1000)
- {
- pfrom->Misbehaving(20);
- return error("message addr size() = %" PRIszu"", vAddr.size());
- }
- // Store the new addresses
- vector<CAddress> vAddrOk;
- int64 nNow = GetAdjustedTime();
- int64 nSince = nNow - 10 * 60;
- BOOST_FOREACH(CAddress& addr, vAddr)
- {
- if (fShutdown)
- return true;
- if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60)
- addr.nTime = nNow - 5 * 24 * 60 * 60;
- pfrom->AddAddressKnown(addr);
- bool fReachable = IsReachable(addr);
- if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
- {
- // Relay to a limited number of other nodes
- {
- LOCK(cs_vNodes);
- static uint256 hashSalt;
- if (hashSalt == 0)
- hashSalt = GetRandHash();
- uint64 hashAddr = addr.GetHash();
- uint256 hashRand = hashSalt ^ (hashAddr<<32) ^ ((GetTime()+hashAddr)/(24*60*60));
- hashRand = Hash(BEGIN(hashRand), END(hashRand));
- multimap<uint256, CNode*> mapMix;
- BOOST_FOREACH(CNode* pnode, vNodes)
- {
- if (pnode->nVersion < CADDR_TIME_VERSION)
- continue;
- unsigned int nPointer;
- memcpy(&nPointer, &pnode, sizeof(nPointer));
- uint256 hashKey = hashRand ^ nPointer;
- hashKey = Hash(BEGIN(hashKey), END(hashKey));
- mapMix.insert(make_pair(hashKey, pnode));
- }
- int nRelayNodes = fReachable ? 2 : 1; // limited relaying of addresses outside our network(s)
- for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
- ((*mi).second)->PushAddress(addr);
- }
- }
- // Do not store addresses outside our network
- if (fReachable)
- vAddrOk.push_back(addr);
- }
- addrman.Add(vAddrOk, pfrom->addr, 2 * 60 * 60);
- if (vAddr.size() < 1000)
- pfrom->fGetAddr = false;
- if (pfrom->fOneShot)
- pfrom->fDisconnect = true;
- }
- else if (strCommand == "inv")
- {
- vector<CInv> vInv;
- vRecv >> vInv;
- if (vInv.size() > MAX_INV_SZ)
- {
- pfrom->Misbehaving(20);
- return error("message inv size() = %" PRIszu"", vInv.size());
- }
- // find last block in inv vector
- unsigned int nLastBlock = (unsigned int)(-1);
- for (unsigned int nInv = 0; nInv < vInv.size(); nInv++) {
- if (vInv[vInv.size() - 1 - nInv].type == MSG_BLOCK) {
- nLastBlock = vInv.size() - 1 - nInv;
- break;
- }
- }
- CTxDB txdb("r");
- for (unsigned int nInv = 0; nInv < vInv.size(); nInv++)
- {
- const CInv &inv = vInv[nInv];
- if (fShutdown)
- return true;
- pfrom->AddInventoryKnown(inv);
- bool fAlreadyHave = AlreadyHave(txdb, inv);
- if (fDebug)
- printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
- if (!fAlreadyHave)
- pfrom->AskFor(inv);
- else if (inv.type == MSG_BLOCK && mapOrphanBlocks.count(inv.hash)) {
- pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(mapOrphanBlocks[inv.hash]));
- } else if (nInv == nLastBlock) {
- pfrom->PushGetBlocks(mapBlockIndex[inv.hash], uint256(0));
- if (fDebug)
- printf("force request: %s\n", inv.ToString().c_str());
- }
- // Track requests for our stuff
- Inventory(inv.hash);
- }
- }
- else if (strCommand == "getdata")
- {
- vector<CInv> vInv;
- vRecv >> vInv;
- if (vInv.size() > MAX_INV_SZ)
- {
- pfrom->Misbehaving(20);
- return error("message getdata size() = %" PRIszu"", vInv.size());
- }
- if (fDebugNet || (vInv.size() != 1))
- printf("received getdata (%" PRIszu" invsz)\n", vInv.size());
- BOOST_FOREACH(const CInv& inv, vInv)
- {
- if (fShutdown)
- return true;
- if (fDebugNet || (vInv.size() == 1))
- printf("received getdata for: %s\n", inv.ToString().c_str());
- if (inv.type == MSG_BLOCK)
- {
- // Send block from disk
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);
- if (mi != mapBlockIndex.end())
- {
- CBlock block;
- block.ReadFromDisk((*mi).second);
- pfrom->PushMessage("block", block);
- // Trigger them to send a getblocks request for the next batch of inventory
- if (inv.hash == pfrom->hashContinue)
- {
- vector<CInv> vInv;
- vInv.push_back(CInv(MSG_BLOCK, GetLastBlockIndex(pindexBest, false)->GetBlockHash()));
- pfrom->PushMessage("inv", vInv);
- pfrom->hashContinue = 0;
- }
- }
- }
- else if (inv.IsKnownType())
- {
- // Send stream from relay memory
- bool pushed = false;
- {
- LOCK(cs_mapRelay);
- map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
- if (mi != mapRelay.end()) {
- pfrom->PushMessage(inv.GetCommand(), (*mi).second);
- pushed = true;
- }
- }
- if (!pushed && inv.type == MSG_TX) {
- LOCK(mempool.cs);
- if (mempool.exists(inv.hash)) {
- CTransaction tx = mempool.lookup(inv.hash);
- CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
- ss.reserve(1000);
- ss << tx;
- pfrom->PushMessage("tx", ss);
- }
- }
- }
- // Track requests for our stuff
- Inventory(inv.hash);
- }
- }
- else if (strCommand == "getblocks")
- {
- CBlockLocator locator;
- uint256 hashStop;
- vRecv >> locator >> hashStop;
- // Find the last block the caller has in the main chain
- CBlockIndex* pindex = locator.GetBlockIndex();
- // Send the rest of the chain
- if (pindex)
- pindex = pindex->pnext;
- int nLimit = 500;
- printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
- for (; pindex; pindex = pindex->pnext)
- {
- if (pindex->GetBlockHash() == hashStop)
- {
- printf(" getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
- if (hashStop != hashBestChain && pindex->GetBlockTime() + nStakeMinAge > pindexBest->GetBlockTime())
- pfrom->PushInventory(CInv(MSG_BLOCK, hashBestChain));
- break;
- }
- pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
- if (--nLimit <= 0)
- {
- printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
- pfrom->hashContinue = pindex->GetBlockHash();
- break;
- }
- }
- }
- else if (strCommand == "checkpoint")
- {
- CSyncCheckpoint checkpoint;
- vRecv >> checkpoint;
- if (checkpoint.ProcessSyncCheckpoint(pfrom))
- {
- // Relay
- pfrom->hashCheckpointKnown = checkpoint.hashCheckpoint;
- LOCK(cs_vNodes);
- BOOST_FOREACH(CNode* pnode, vNodes)
- checkpoint.RelayTo(pnode);
- }
- }
- else if (strCommand == "getheaders")
- {
- CBlockLocator locator;
- uint256 hashStop;
- vRecv >> locator >> hashStop;
- CBlockIndex* pindex = NULL;
- if (locator.IsNull())
- {
- // If locator is null, return the hashStop block
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashStop);
- if (mi == mapBlockIndex.end())
- return true;
- pindex = (*mi).second;
- }
- else
- {
- // Find the last block the caller has in the main chain
- pindex = locator.GetBlockIndex();
- if (pindex)
- pindex = pindex->pnext;
- }
- vector<CBlock> vHeaders;
- int nLimit = 2000;
- printf("getheaders %d to %s\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str());
- for (; pindex; pindex = pindex->pnext)
- {
- vHeaders.push_back(pindex->GetBlockHeader());
- if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop)
- break;
- }
- pfrom->PushMessage("headers", vHeaders);
- }
- else if (strCommand == "tx")
- {
- vector<uint256> vWorkQueue;
- vector<uint256> vEraseQueue;
- CDataStream vMsg(vRecv);
- CTxDB txdb("r");
- CTransaction tx;
- vRecv >> tx;
- CInv inv(MSG_TX, tx.GetHash());
- pfrom->AddInventoryKnown(inv);
- bool fMissingInputs = false;
- if (tx.AcceptToMemoryPool(txdb, true, &fMissingInputs))
- {
- SyncWithWallets(tx, NULL, true);
- RelayTransaction(tx, inv.hash);
- mapAlreadyAskedFor.erase(inv);
- vWorkQueue.push_back(inv.hash);
- vEraseQueue.push_back(inv.hash);
- // Recursively process any orphan transactions that depended on this one
- for (unsigned int i = 0; i < vWorkQueue.size(); i++)
- {
- uint256 hashPrev = vWorkQueue[i];
- for (set<uint256>::iterator mi = mapOrphanTransactionsByPrev[hashPrev].begin();
- mi != mapOrphanTransactionsByPrev[hashPrev].end();
- ++mi)
- {
- const uint256& orphanTxHash = *mi;
- CTransaction& orphanTx = mapOrphanTransactions[orphanTxHash];
- bool fMissingInputs2 = false;
- if (orphanTx.AcceptToMemoryPool(txdb, true, &fMissingInputs2))
- {
- printf(" accepted orphan tx %s\n", orphanTxHash.ToString().substr(0,10).c_str());
- SyncWithWallets(tx, NULL, true);
- RelayTransaction(orphanTx, orphanTxHash);
- mapAlreadyAskedFor.erase(CInv(MSG_TX, orphanTxHash));
- vWorkQueue.push_back(orphanTxHash);
- vEraseQueue.push_back(orphanTxHash);
- }
- else if (!fMissingInputs2)
- {
- // invalid orphan
- vEraseQueue.push_back(orphanTxHash);
- printf(" removed invalid orphan tx %s\n", orphanTxHash.ToString().substr(0,10).c_str());
- }
- }
- }
- BOOST_FOREACH(uint256 hash, vEraseQueue)
- EraseOrphanTx(hash);
- }
- else if (fMissingInputs)
- {
- AddOrphanTx(tx);
- // DoS prevention: do not allow mapOrphanTransactions to grow unbounded
- unsigned int nEvicted = LimitOrphanTxSize(MAX_ORPHAN_TRANSACTIONS);
- if (nEvicted > 0)
- printf("mapOrphan overflow, removed %u tx\n", nEvicted);
- }
- if (tx.nDoS) pfrom->Misbehaving(tx.nDoS);
- }
- else if (strCommand == "block")
- {
- CBlock block;
- vRecv >> block;
- uint256 hashBlock = block.GetHash();
- printf("received block %s\n", hashBlock.ToString().substr(0,20).c_str());
- // block.print();
- CInv inv(MSG_BLOCK, hashBlock);
- pfrom->AddInventoryKnown(inv);
- if (ProcessBlock(pfrom, &block))
- mapAlreadyAskedFor.erase(inv);
- if (block.nDoS) pfrom->Misbehaving(block.nDoS);
- }
- else if (strCommand == "getaddr")
- {
- // Don't return addresses older than nCutOff timestamp
- int64 nCutOff = GetTime() - (nNodeLifespan * 24 * 60 * 60);
- pfrom->vAddrToSend.clear();
- vector<CAddress> vAddr = addrman.GetAddr();
- BOOST_FOREACH(const CAddress &addr, vAddr)
- if(addr.nTime > nCutOff)
- pfrom->PushAddress(addr);
- }
- else if (strCommand == "mempool")
- {
- std::vector<uint256> vtxid;
- mempool.queryHashes(vtxid);
- vector<CInv> vInv;
- for (unsigned int i = 0; i < vtxid.size(); i++) {
- CInv inv(MSG_TX, vtxid[i]);
- vInv.push_back(inv);
- if (i == (MAX_INV_SZ - 1))
- break;
- }
- if (vInv.size() > 0)
- pfrom->PushMessage("inv", vInv);
- }
- else if (strCommand == "checkorder")
- {
- uint256 hashReply;
- vRecv >> hashReply;
- if (!GetBoolArg("-allowreceivebyip"))
- {
- pfrom->PushMessage("reply", hashReply, (int)2, string(""));
- return true;
- }
- CWalletTx order;
- vRecv >> order;
- // Keep giving the same key to the same ip until they use it
- if (!mapReuseKey.count(pfrom->addr))
- pwalletMain->GetKeyFromPool(mapReuseKey[pfrom->addr], true);
- // Send back approval of order and pubkey to use
- CScript scriptPubKey;
- scriptPubKey << mapReuseKey[pfrom->addr] << OP_CHECKSIG;
- pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);
- }
- else if (strCommand == "reply")
- {
- uint256 hashReply;
- vRecv >> hashReply;
- CRequestTracker tracker;
- {
- LOCK(pfrom->cs_mapRequests);
- map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
- if (mi != pfrom->mapRequests.end())
- {
- tracker = (*mi).second;
- pfrom->mapRequests.erase(mi);
- }
- }
- if (!tracker.IsNull())
- tracker.fn(tracker.param1, vRecv);
- }
- else if (strCommand == "ping")
- {
- if (pfrom->nVersion > BIP0031_VERSION)
- {
- uint64 nonce = 0;
- vRecv >> nonce;
- pfrom->PushMessage("pong", nonce);
- }
- }
- else if (strCommand == "alert")
- {
- CAlert alert;
- vRecv >> alert;
- uint256 alertHash = alert.GetHash();
- if (pfrom->setKnown.count(alertHash) == 0)
- {
- if (alert.ProcessAlert())
- {
- // Relay
- pfrom->setKnown.insert(alertHash);
- {
- LOCK(cs_vNodes);
- BOOST_FOREACH(CNode* pnode, vNodes)
- alert.RelayTo(pnode);
- }
- }
- else {
- pfrom->Misbehaving(10);
- }
- }
- }
- else
- {
- // Ignore unknown commands for extensibility
- }
- // Update the last seen time for this node's address
- if (pfrom->fNetworkNode)
- if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")
- AddressCurrentlyConnected(pfrom->addr);
- return true;
- }
- bool ProcessMessages(CNode* pfrom)
- {
- CDataStream& vRecv = pfrom->vRecv;
- if (vRecv.empty())
- return true;
- while (true)
- {
- // Don't bother if send buffer is too full to respond anyway
- if (pfrom->vSend.size() >= SendBufferSize())
- break;
- // Scan for message start
- CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
- int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
- if (vRecv.end() - pstart < nHeaderSize)
- {
- if ((int)vRecv.size() > nHeaderSize)
- {
- printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
- vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
- }
- break;
- }
- if (pstart - vRecv.begin() > 0)
- printf("\n\nPROCESSMESSAGE SKIPPED %" PRIpdd" BYTES\n\n", pstart - vRecv.begin());
- vRecv.erase(vRecv.begin(), pstart);
- // Read header
- vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);
- CMessageHeader hdr;
- vRecv >> hdr;
- if (!hdr.IsValid())
- {
- printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());
- continue;
- }
- string strCommand = hdr.GetCommand();
- // Message size
- unsigned int nMessageSize = hdr.nMessageSize;
- if (nMessageSize > MAX_SIZE)
- {
- printf("ProcessMessages(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
- continue;
- }
- if (nMessageSize > vRecv.size())
- {
- // Rewind and wait for rest of message
- vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
- break;
- }
- // Checksum
- uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
- unsigned int nChecksum = 0;
- memcpy(&nChecksum, &hash, sizeof(nChecksum));
- if (nChecksum != hdr.nChecksum)
- {
- printf("ProcessMessages(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
- strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
- continue;
- }
- // Copy message to its own buffer
- CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
- vRecv.ignore(nMessageSize);
- // Process message
- bool fRet = false;
- try
- {
- {
- LOCK(cs_main);
- fRet = ProcessMessage(pfrom, strCommand, vMsg);
- }
- if (fShutdown)
- return true;
- }
- catch (std::ios_base::failure& e)
- {
- if (strstr(e.what(), "end of data"))
- {
- // Allow exceptions from under-length message on vRecv
- printf("ProcessMessages(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
- }
- else if (strstr(e.what(), "size too large"))
- {
- // Allow exceptions from over-long size
- printf("ProcessMessages(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
- }
- else
- {
- PrintExceptionContinue(&e, "ProcessMessages()");
- }
- }
- catch (std::exception& e) {
- PrintExceptionContinue(&e, "ProcessMessages()");
- } catch (...) {
- PrintExceptionContinue(NULL, "ProcessMessages()");
- }
- if (!fRet)
- printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
- }
- vRecv.Compact();
- return true;
- }
- bool SendMessages(CNode* pto, bool fSendTrickle)
- {
- TRY_LOCK(cs_main, lockMain);
- if (lockMain) {
- // Don't send anything until we get their version message
- if (pto->nVersion == 0)
- return true;
- // Keep-alive ping. We send a nonce of zero because we don't use it anywhere
- // right now.
- if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty()) {
- uint64 nonce = 0;
- if (pto->nVersion > BIP0031_VERSION)
- pto->PushMessage("ping", nonce);
- else
- pto->PushMessage("ping");
- }
- // Resend wallet transactions that haven't gotten in a block yet
- ResendWalletTransactions();
- // Address refresh broadcast
- static int64 nLastRebroadcast;
- if (!IsInitialBlockDownload() && (GetTime() - nLastRebroadcast > 24 * 60 * 60))
- {
- {
- LOCK(cs_vNodes);
- BOOST_FOREACH(CNode* pnode, vNodes)
- {
- // Periodically clear setAddrKnown to allow refresh broadcasts
- if (nLastRebroadcast)
- pnode->setAddrKnown.clear();
- // Rebroadcast our address
- if (!fNoListen)
- {
- CAddress addr = GetLocalAddress(&pnode->addr);
- if (addr.IsRoutable())
- pnode->PushAddress(addr);
- }
- }
- }
- nLastRebroadcast = GetTime();
- }
- //
- // Message: addr
- //
- if (fSendTrickle)
- {
- vector<CAddress> vAddr;
- vAddr.reserve(pto->vAddrToSend.size());
- BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend)
- {
- // returns true if wasn't already contained in the set
- if (pto->setAddrKnown.insert(addr).second)
- {
- vAddr.push_back(addr);
- // receiver rejects addr messages larger than 1000
- if (vAddr.size() >= 1000)
- {
- pto->PushMessage("addr", vAddr);
- vAddr.clear();
- }
- }
- }
- pto->vAddrToSend.clear();
- if (!vAddr.empty())
- pto->PushMessage("addr", vAddr);
- }
- // Message: inventory
- vector<CInv> vInv;
- vector<CInv> vInvWait;
- {
- LOCK(pto->cs_inventory);
- vInv.reserve(pto->vInventoryToSend.size());
- vInvWait.reserve(pto->vInventoryToSend.size());
- BOOST_FOREACH(const CInv& inv, pto->vInventoryToSend)
- {
- if (pto->setInventoryKnown.count(inv))
- continue;
- // trickle out tx inv to protect privacy
- if (inv.type == MSG_TX && !fSendTrickle)
- {
- // 1/4 of tx invs blast to all immediately
- static uint256 hashSalt;
- if (hashSalt == 0)
- hashSalt = GetRandHash();
- uint256 hashRand = inv.hash ^ hashSalt;
- hashRand = Hash(BEGIN(hashRand), END(hashRand));
- bool fTrickleWait = ((hashRand & 3) != 0);
- // always trickle our own transactions
- if (!fTrickleWait)
- {
- CWalletTx wtx;
- if (GetTransaction(inv.hash, wtx))
- if (wtx.fFromMe)
- fTrickleWait = true;
- }
- if (fTrickleWait)
- {
- vInvWait.push_back(inv);
- continue;
- }
- }
- // returns true if wasn't already contained in the set
- if (pto->setInventoryKnown.insert(inv).second)
- {
- vInv.push_back(inv);
- if (vInv.size() >= 1000)
- {
- pto->PushMessage("inv", vInv);
- vInv.clear();
- }
- }
- }
- pto->vInventoryToSend = vInvWait;
- }
- if (!vInv.empty())
- pto->PushMessage("inv", vInv);
- // Message: getdata
- vector<CInv> vGetData;
- int64 nNow = GetTime() * 1000000;
- CTxDB txdb("r");
- while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)
- {
- const CInv& inv = (*pto->mapAskFor.begin()).second;
- if (!AlreadyHave(txdb, inv))
- {
- if (fDebugNet)
- printf("sending getdata: %s\n", inv.ToString().c_str());
- vGetData.push_back(inv);
- if (vGetData.size() >= 1000)
- {
- pto->PushMessage("getdata", vGetData);
- vGetData.clear();
- }
- mapAlreadyAskedFor[inv] = nNow;
- }
- pto->mapAskFor.erase(pto->mapAskFor.begin());
- }
- if (!vGetData.empty())
- pto->PushMessage("getdata", vGetData);
- }
- return true;
- }
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