X-Git-Url: https://git.novaco.in/?p=novacoin.git;a=blobdiff_plain;f=src%2Fwallet.cpp;h=e49c2150e6265664992eca6de199d399f69bd45d;hp=77154194d0126039bbe4e4449299bf8a90ab52ac;hb=16163ca1b076ee1e6e2c99cc67695e6e654a3293;hpb=96706a5f6629dd42ec365687e089c6c395404401

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 7715419..e49c215 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -9,6 +9,7 @@
 #include "ui_interface.h"
 #include "base58.h"
 #include "kernel.h"
+#include <boost/algorithm/string/replace.hpp>
 
 using namespace std;
 extern int nStakeMaxAge;
@@ -40,6 +41,14 @@ CPubKey CWallet::GenerateNewKey()
     if (fCompressed)
         SetMinVersion(FEATURE_COMPRPUBKEY);
 
+    CPubKey pubkey = key.GetPubKey();
+
+    // Create new metadata
+    int64 nCreationTime = GetTime();
+    mapKeyMetadata[pubkey.GetID()] = CKeyMetadata(nCreationTime);
+    if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
+        nTimeFirstKey = nCreationTime;
+
     if (!AddKey(key))
         throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
     return key.GetPubKey();
@@ -47,12 +56,14 @@ CPubKey CWallet::GenerateNewKey()
 
 bool CWallet::AddKey(const CKey& key)
 {
+    CPubKey pubkey = key.GetPubKey();
+
     if (!CCryptoKeyStore::AddKey(key))
         return false;
     if (!fFileBacked)
         return true;
     if (!IsCrypted())
-        return CWalletDB(strWalletFile).WriteKey(key.GetPubKey(), key.GetPrivKey());
+        return CWalletDB(strWalletFile).WriteKey(pubkey, key.GetPrivKey(), mapKeyMetadata[pubkey.GetID()]);
     return true;
 }
 
@@ -65,13 +76,22 @@ bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char
     {
         LOCK(cs_wallet);
         if (pwalletdbEncryption)
-            return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret);
+            return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
         else
-            return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret);
+            return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]);
     }
     return false;
 }
 
+bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
+{
+    if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey))
+        nTimeFirstKey = meta.nCreateTime;
+
+    mapKeyMetadata[pubkey.GetID()] = meta;
+    return true;
+}
+
 bool CWallet::AddCScript(const CScript& redeemScript)
 {
     if (!CCryptoKeyStore::AddCScript(redeemScript))
@@ -482,6 +502,16 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn)
 
         // Notify UI of new or updated transaction
         NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
+
+        // notify an external script when a wallet transaction comes in or is updated
+        std::string strCmd = GetArg("-walletnotify", "");
+
+        if ( !strCmd.empty())
+        {
+            boost::replace_all(strCmd, "%s", wtxIn.GetHash().GetHex());
+            boost::thread t(runCommand, strCmd); // thread runs free
+        }
+
     }
     return true;
 }
@@ -672,9 +702,10 @@ void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, l
 void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
                                   int64& nSent, int64& nFee) const
 {
-    nReceived = nSent = nFee = 0;
+    nGenerated = nReceived = nSent = nFee = 0;
 
     int64 allGeneratedImmature, allGeneratedMature, allFee;
+    allGeneratedImmature = allGeneratedMature = allFee = 0;
     string strSentAccount;
     list<pair<CTxDestination, int64> > listReceived;
     list<pair<CTxDestination, int64> > listSent;
@@ -955,7 +986,7 @@ int64 CWallet::GetBalance() const
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
-            if (pcoin->IsFinal() && pcoin->IsConfirmed())
+            if (pcoin->IsConfirmed())
                 nTotal += pcoin->GetAvailableCredit();
         }
     }
@@ -1013,6 +1044,9 @@ void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed) const
             if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
                 continue;
 
+            if(pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0)
+                continue;
+
             for (unsigned int i = 0; i < pcoin->vout.size(); i++)
                 if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue > 0)
                     vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
@@ -1334,6 +1368,91 @@ bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& w
     return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet);
 }
 
+// NovaCoin: get current stake weight
+uint64 CWallet::GetStakeWeight(const CKeyStore& keystore, enum StakeWeightMode mode)
+{
+    LOCK2(cs_main, cs_wallet);
+
+    // Choose coins to use
+    int64 nBalance = GetBalance();
+    int64 nReserveBalance = 0;
+    uint64 nCoinAge = 0;
+
+    if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
+    {
+        error("GetStakeWeight : invalid reserve balance amount");
+        return 0;
+    }
+
+    if (nBalance <= nReserveBalance)
+        return 0;
+
+    set<pair<const CWalletTx*,unsigned int> > setCoins;
+    vector<const CWalletTx*> vwtxPrev;
+    int64 nValueIn = 0;
+    if (!SelectCoins(nBalance - nReserveBalance, GetTime(), setCoins, nValueIn))
+        return 0;
+    if (setCoins.empty())
+        return 0;
+
+    BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
+    {
+        CTxDB txdb("r");
+        CTxIndex txindex;
+        if (!txdb.ReadTxIndex(pcoin.first->GetHash(), txindex))
+            continue;
+
+        unsigned int nTime = pcoin.first->nTime;
+
+        switch(mode)
+        {
+            case STAKE_NORMAL:
+                // Do not count input that is still less than 30 days old
+                if (nTime + nStakeMinAge > GetTime())
+                    continue;
+            break;
+            case STAKE_MAXWEIGHT:
+                // Do not count input that is still less than 90 days old
+                if (nTime + nStakeMaxAge > GetTime())
+                    continue;
+            break;
+            case STAKE_MINWEIGHT:
+                // Count only inputs with suitable age (from 30 to 90 days old)
+                if (nTime + nStakeMaxAge < GetTime())
+                    continue;
+                if (nTime + nStakeMinAge > GetTime())
+                    continue;
+            break;
+        }
+
+        int64 nTimeWeight;
+
+        // Kernel hash weight starts from 0 at the 30-day min age
+        // this change increases active coins participating the hash and helps
+        // to secure the network when proof-of-stake difficulty is low
+        //
+        if(fTestNet || (STAKEWEIGHT_SWITCH_TIME < nTime))
+        {
+            // New rule since 01 Jan 2014: Maximum TimeWeight is 90 days.
+            nTimeWeight = min((int64)GetTime() - nTime - nStakeMinAge, (int64)nStakeMaxAge);
+        }
+        else
+        {
+            // Current rule: Maximum TimeWeight is 60 days.
+            nTimeWeight = min((int64)GetTime() - nTime, (int64)nStakeMaxAge) - nStakeMinAge;
+        }
+
+        CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);
+
+        nCoinAge += bnCoinDayWeight.getuint64();
+    }
+
+    if (fDebug && GetBoolArg("-printcoinage"))
+        printf("StakeWeight bnCoinDay=%"PRI64d"\n", nCoinAge);
+
+    return nCoinAge;
+}
+
 // ppcoin: create coin stake transaction
 bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int64 nSearchInterval, CTransaction& txNew)
 {
@@ -1479,7 +1598,7 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
         CTxDB txdb("r");
         if (!txNew.GetCoinAge(txdb, nCoinAge))
             return error("CreateCoinStake : failed to calculate coin age");
-        nCredit += GetProofOfStakeReward(nCoinAge);
+        nCredit += GetProofOfStakeReward(nCoinAge, nBits, txNew.nTime);
     }
 
     int64 nMinFee = 0;
@@ -1761,7 +1880,7 @@ bool CWallet::NewKeyPool()
     return true;
 }
 
-bool CWallet::TopUpKeyPool()
+bool CWallet::TopUpKeyPool(unsigned int nSize)
 {
     {
         LOCK(cs_wallet);
@@ -1772,7 +1891,12 @@ bool CWallet::TopUpKeyPool()
         CWalletDB walletdb(strWalletFile);
 
         // Top up key pool
-        unsigned int nTargetSize = max(GetArg("-keypool", 100), 0LL);
+        unsigned int nTargetSize;
+        if (nSize > 0)
+            nTargetSize = nSize;
+        else
+            nTargetSize = max(GetArg("-keypool", 100), 0LL);
+
         while (setKeyPool.size() < (nTargetSize + 1))
         {
             int64 nEnd = 1;
@@ -1838,7 +1962,8 @@ void CWallet::KeepKey(int64 nIndex)
         CWalletDB walletdb(strWalletFile);
         walletdb.ErasePool(nIndex);
     }
-    printf("keypool keep %"PRI64d"\n", nIndex);
+    if(fDebug)
+        printf("keypool keep %"PRI64d"\n", nIndex);
 }
 
 void CWallet::ReturnKey(int64 nIndex)
@@ -1848,7 +1973,8 @@ void CWallet::ReturnKey(int64 nIndex)
         LOCK(cs_wallet);
         setKeyPool.insert(nIndex);
     }
-    printf("keypool return %"PRI64d"\n", nIndex);
+    if(fDebug)
+        printf("keypool return %"PRI64d"\n", nIndex);
 }
 
 bool CWallet::GetKeyFromPool(CPubKey& result, bool fAllowReuse)
@@ -2115,7 +2241,7 @@ void CReserveKey::ReturnKey()
     vchPubKey = CPubKey();
 }
 
-void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress)
+void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
 {
     setAddress.clear();
 
@@ -2145,3 +2271,54 @@ void CWallet::UpdatedTransaction(const uint256 &hashTx)
             NotifyTransactionChanged(this, hashTx, CT_UPDATED);
     }
 }
+
+void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64> &mapKeyBirth) const {
+    mapKeyBirth.clear();
+
+    // get birth times for keys with metadata
+    for (std::map<CKeyID, CKeyMetadata>::const_iterator it = mapKeyMetadata.begin(); it != mapKeyMetadata.end(); it++)
+        if (it->second.nCreateTime)
+            mapKeyBirth[it->first] = it->second.nCreateTime;
+
+    // map in which we'll infer heights of other keys
+    CBlockIndex *pindexMax = FindBlockByHeight(std::max(0, nBestHeight - 144)); // the tip can be reorganised; use a 144-block safety margin
+    std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock;
+    std::set<CKeyID> setKeys;
+    GetKeys(setKeys);
+    BOOST_FOREACH(const CKeyID &keyid, setKeys) {
+        if (mapKeyBirth.count(keyid) == 0)
+            mapKeyFirstBlock[keyid] = pindexMax;
+    }
+    setKeys.clear();
+
+    // if there are no such keys, we're done
+    if (mapKeyFirstBlock.empty())
+        return;
+
+    // find first block that affects those keys, if there are any left
+    std::vector<CKeyID> vAffected;
+    for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); it++) {
+        // iterate over all wallet transactions...
+        const CWalletTx &wtx = (*it).second;
+        std::map<uint256, CBlockIndex*>::const_iterator blit = mapBlockIndex.find(wtx.hashBlock);
+        if (blit != mapBlockIndex.end() && blit->second->IsInMainChain()) {
+            // ... which are already in a block
+            int nHeight = blit->second->nHeight;
+            BOOST_FOREACH(const CTxOut &txout, wtx.vout) {
+                // iterate over all their outputs
+                ::ExtractAffectedKeys(*this, txout.scriptPubKey, vAffected);
+                BOOST_FOREACH(const CKeyID &keyid, vAffected) {
+                    // ... and all their affected keys
+                    std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid);
+                    if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight)
+                        rit->second = blit->second;
+                }
+                vAffected.clear();
+            }
+        }
+    }
+
+    // Extract block timestamps for those keys
+    for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++)
+        mapKeyBirth[it->first] = it->second->nTime - 7200; // block times can be 2h off
+}