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File indexing completed on 2020-06-25 15:50:33

 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 
 #include "headers.h"
 #include "db.h"
 #include "net.h"
 #include "init.h"
 #undef printf
 #include <boost/asio.hpp>
 #include <boost/iostreams/concepts.hpp>
 #include <boost/iostreams/stream.hpp>
 #include <boost/algorithm/string.hpp>
 #include "json/json_spirit_reader_template.h"
 #include "json/json_spirit_writer_template.h"
 #include "json/json_spirit_utils.h"
 #define printf OutputDebugStringF
 // MinGW 3.4.5 gets "fatal error: had to relocate PCH" if the json headers are
 // precompiled in headers.h.  The problem might be when the pch file goes over
 // a certain size around 145MB.  If we need access to json_spirit outside this
 // file, we could use the compiled json_spirit option.
 
 using namespace std;
 using namespace boost;
 using namespace boost::asio;
 using namespace json_spirit;
 
 void ThreadRPCServer2(void* parg);
 typedef Value(*rpcfn_type)(const Array& params, bool fHelp);
 extern map<string, rpcfn_type> mapCallTable;
 
 static std::string strRPCUserColonPass;
 
 static int64 nWalletUnlockTime;
 static CCriticalSection cs_nWalletUnlockTime;
 
 
 Object JSONRPCError(int code, const string& message)
 {
     Object error;
     error.push_back(Pair("code", code));
     error.push_back(Pair("message", message));
     return error;
 }
 
 
 void PrintConsole(const std::string &format, ...)
 {
     char buffer[50000];
     int limit = sizeof(buffer);
     va_list arg_ptr;
     va_start(arg_ptr, format);
     int ret = _vsnprintf(buffer, limit, format.c_str(), arg_ptr);
     va_end(arg_ptr);
     if (ret < 0 || ret >= limit)
     {
         ret = limit - 1;
         buffer[limit-1] = 0;
     }
     printf("%s", buffer);
     fprintf(stdout, "%s", buffer);
 }
 
 
 int64 AmountFromValue(const Value& value)
 {
     double dAmount = value.get_real();
     if (dAmount <= 0.0 || dAmount > 21000000.0)
         throw JSONRPCError(-3, "Invalid amount");
     int64 nAmount = roundint64(dAmount * COIN);
     if (!MoneyRange(nAmount))
         throw JSONRPCError(-3, "Invalid amount");
     return nAmount;
 }
 
 Value ValueFromAmount(int64 amount)
 {
     return (double)amount / (double)COIN;
 }
 
 void WalletTxToJSON(const CWalletTx& wtx, Object& entry)
 {
     entry.push_back(Pair("confirmations", wtx.GetDepthInMainChain()));
     entry.push_back(Pair("txid", wtx.GetHash().GetHex()));
     entry.push_back(Pair("time", (boost::int64_t)wtx.GetTxTime()));
     BOOST_FOREACH(const PAIRTYPE(string,string)& item, wtx.mapValue)
         entry.push_back(Pair(item.first, item.second));
 }
 
 string AccountFromValue(const Value& value)
 {
     string strAccount = value.get_str();
     if (strAccount == "*")
         throw JSONRPCError(-11, "Invalid account name");
     return strAccount;
 }
 
 
 
 ///
 /// Note: This interface may still be subject to change.
 ///
 
 
 Value help(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
             "help [command]\n"
             "List commands, or get help for a command.");
 
     string strCommand;
     if (params.size() > 0)
         strCommand = params[0].get_str();
 
     string strRet;
     set<rpcfn_type> setDone;
     for (map<string, rpcfn_type>::iterator mi = mapCallTable.begin(); mi != mapCallTable.end(); ++mi)
     {
         string strMethod = (*mi).first;
         // We already filter duplicates, but these deprecated screw up the sort order
         if (strMethod == "getamountreceived" ||
             strMethod == "getallreceived" ||
             strMethod == "getblocknumber" || // deprecated
             (strMethod.find("label") != string::npos))
             continue;
         if (strCommand != "" && strMethod != strCommand)
             continue;
         try
         {
             Array params;
             rpcfn_type pfn = (*mi).second;
             if (setDone.insert(pfn).second)
                 (*pfn)(params, true);
         }
         catch (std::exception& e)
         {
             // Help text is returned in an exception
             string strHelp = string(e.what());
             if (strCommand == "")
                 if (strHelp.find('\n') != -1)
                     strHelp = strHelp.substr(0, strHelp.find('\n'));
             strRet += strHelp + "\n";
         }
     }
     if (strRet == "")
         strRet = strprintf("help: unknown command: %s\n", strCommand.c_str());
     strRet = strRet.substr(0,strRet.size()-1);
     return strRet;
 }
 
 
 Value stop(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "stop\n"
             "Stop bitcoin server.");
     // Shutdown will take long enough that the response should get back
     CreateThread(Shutdown, NULL);
     return "bitcoin server stopping";
 }
 
 
 Value getblockcount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getblockcount\n"
             "Returns the number of blocks in the longest block chain.");
 
     return nBestHeight;
 }
 
 
 // deprecated
 Value getblocknumber(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getblocknumber\n"
             "Deprecated.  Use getblockcount.");
 
     return nBestHeight;
 }
 
 
 Value getconnectioncount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getconnectioncount\n"
             "Returns the number of connections to other nodes.");
 
     return (int)vNodes.size();
 }
 
 
 double GetDifficulty()
 {
     // Floating point number that is a multiple of the minimum difficulty,
     // minimum difficulty = 1.0.
 
     if (pindexBest == NULL)
         return 1.0;
     int nShift = (pindexBest->nBits >> 24) & 0xff;
 
     double dDiff =
         (double)0x0000ffff / (double)(pindexBest->nBits & 0x00ffffff);
 
     while (nShift < 29)
     {
         dDiff *= 256.0;
         nShift++;
     }
     while (nShift > 29)
     {
         dDiff /= 256.0;
         nShift--;
     }
 
     return dDiff;
 }
 
 Value getdifficulty(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getdifficulty\n"
             "Returns the proof-of-work difficulty as a multiple of the minimum difficulty.");
 
     return GetDifficulty();
 }
 
 
 Value getgenerate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getgenerate\n"
             "Returns true or false.");
 
     return (bool)fGenerateBitcoins;
 }
 
 
 Value setgenerate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "setgenerate <generate> [genproclimit]\n"
             "<generate> is true or false to turn generation on or off.\n"
             "Generation is limited to [genproclimit] processors, -1 is unlimited.");
 
     bool fGenerate = true;
     if (params.size() > 0)
         fGenerate = params[0].get_bool();
 
     if (params.size() > 1)
     {
         int nGenProcLimit = params[1].get_int();
         fLimitProcessors = (nGenProcLimit != -1);
         WriteSetting("fLimitProcessors", fLimitProcessors);
         if (nGenProcLimit != -1)
             WriteSetting("nLimitProcessors", nLimitProcessors = nGenProcLimit);
         if (nGenProcLimit == 0)
             fGenerate = false;
     }
 
     GenerateBitcoins(fGenerate, pwalletMain);
     return Value::null;
 }
 
 
 Value gethashespersec(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "gethashespersec\n"
             "Returns a recent hashes per second performance measurement while generating.");
 
     if (GetTimeMillis() - nHPSTimerStart > 8000)
         return (boost::int64_t)0;
     return (boost::int64_t)dHashesPerSec;
 }
 
 
 Value getinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
             "getinfo\n"
             "Returns an object containing various state info.");
 
     Object obj;
     obj.push_back(Pair("version",       (int)VERSION));
     obj.push_back(Pair("balance",       ValueFromAmount(pwalletMain->GetBalance())));
     obj.push_back(Pair("blocks",        (int)nBestHeight));
     obj.push_back(Pair("connections",   (int)vNodes.size()));
     obj.push_back(Pair("proxy",         (fUseProxy ? addrProxy.ToStringIPPort() : string())));
     obj.push_back(Pair("generate",      (bool)fGenerateBitcoins));
     obj.push_back(Pair("genproclimit",  (int)(fLimitProcessors ? nLimitProcessors : -1)));
     obj.push_back(Pair("difficulty",    (double)GetDifficulty()));
     obj.push_back(Pair("hashespersec",  gethashespersec(params, false)));
     obj.push_back(Pair("keypoololdest", (boost::int64_t)pwalletMain->GetOldestKeyPoolTime()));
     obj.push_back(Pair("keypoolsize",   pwalletMain->GetKeyPoolSize()));
     obj.push_back(Pair("paytxfee",      ValueFromAmount(nTransactionFee)));
     if (pwalletMain->IsCrypted())
         obj.push_back(Pair("unlocked_until", (boost::int64_t)nWalletUnlockTime / 1000));
     obj.push_back(Pair("errors",        GetWarnings("statusbar")));
     return obj;
 }
 
 
 Value getnewaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
             "getnewaddress [account]\n"
             "Returns a new bitcoin address for receiving payments.  "
             "If [account] is specified (recommended), it is added to the address book "
             "so payments received with the address will be credited to [account].");
 
     // Parse the account first so we don't generate a key if there's an error
     string strAccount;
     if (params.size() > 0)
         strAccount = AccountFromValue(params[0]);
 
     if (!pwalletMain->IsLocked())
         pwalletMain->TopUpKeyPool();
 
     // Generate a new key that is added to wallet
     std::vector<unsigned char> newKey;
     if (!pwalletMain->GetKeyFromPool(newKey, false))
         throw JSONRPCError(-12, "Error: Keypool ran out, please call keypoolrefill first");
     CBitcoinAddress address(newKey);
 
     pwalletMain->SetAddressBookName(address, strAccount);
 
     return address.ToString();
 }
 
 
 CBitcoinAddress GetAccountAddress(string strAccount, bool bForceNew=false)
 {
     CWalletDB walletdb(pwalletMain->strWalletFile);
 
     CAccount account;
     walletdb.ReadAccount(strAccount, account);
 
     bool bKeyUsed = false;
 
     // Check if the current key has been used
     if (!account.vchPubKey.empty())
     {
         CScript scriptPubKey;
         scriptPubKey.SetBitcoinAddress(account.vchPubKey);
         for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin();
              it != pwalletMain->mapWallet.end() && !account.vchPubKey.empty();
              ++it)
         {
             const CWalletTx& wtx = (*it).second;
             BOOST_FOREACH(const CTxOut& txout, wtx.vout)
                 if (txout.scriptPubKey == scriptPubKey)
                     bKeyUsed = true;
         }
     }
 
     // Generate a new key
     if (account.vchPubKey.empty() || bForceNew || bKeyUsed)
     {
         if (!pwalletMain->GetKeyFromPool(account.vchPubKey, false))
             throw JSONRPCError(-12, "Error: Keypool ran out, please call keypoolrefill first");
 
         pwalletMain->SetAddressBookName(CBitcoinAddress(account.vchPubKey), strAccount);
         walletdb.WriteAccount(strAccount, account);
     }
 
     return CBitcoinAddress(account.vchPubKey);
 }
 
 Value getaccountaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccountaddress <account>\n"
             "Returns the current bitcoin address for receiving payments to this account.");
 
     // Parse the account first so we don't generate a key if there's an error
     string strAccount = AccountFromValue(params[0]);
 
     Value ret;
 
     ret = GetAccountAddress(strAccount).ToString();
 
     return ret;
 }
 
 
 
 Value setaccount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "setaccount <bitcoinaddress> <account>\n"
             "Sets the account associated with the given address.");
 
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(-5, "Invalid bitcoin address");
 
 
     string strAccount;
     if (params.size() > 1)
         strAccount = AccountFromValue(params[1]);
 
     // Detect when changing the account of an address that is the 'unused current key' of another account:
     if (pwalletMain->mapAddressBook.count(address))
     {
         string strOldAccount = pwalletMain->mapAddressBook[address];
         if (address == GetAccountAddress(strOldAccount))
             GetAccountAddress(strOldAccount, true);
     }
 
     pwalletMain->SetAddressBookName(address, strAccount);
 
     return Value::null;
 }
 
 
 Value getaccount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccount <bitcoinaddress>\n"
             "Returns the account associated with the given address.");
 
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(-5, "Invalid bitcoin address");
 
     string strAccount;
     map<CBitcoinAddress, string>::iterator mi = pwalletMain->mapAddressBook.find(address);
     if (mi != pwalletMain->mapAddressBook.end() && !(*mi).second.empty())
         strAccount = (*mi).second;
     return strAccount;
 }
 
 
 Value getaddressesbyaccount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaddressesbyaccount <account>\n"
             "Returns the list of addresses for the given account.");
 
     string strAccount = AccountFromValue(params[0]);
 
     // Find all addresses that have the given account
     Array ret;
     BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, string)& item, pwalletMain->mapAddressBook)
     {
         const CBitcoinAddress& address = item.first;
         const string& strName = item.second;
         if (strName == strAccount)
             ret.push_back(address.ToString());
     }
     return ret;
 }
 
 Value settxfee(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 1)
         throw runtime_error(
             "settxfee <amount>\n"
             "<amount> is a real and is rounded to the nearest 0.00000001");
 
     // Amount
     int64 nAmount = 0;
     if (params[0].get_real() != 0.0)
         nAmount = AmountFromValue(params[0]);        // rejects 0.0 amounts
 
     nTransactionFee = nAmount;
     return true;
 }
 
 Value sendtoaddress(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() < 2 || params.size() > 4))
         throw runtime_error(
             "sendtoaddress <bitcoinaddress> <amount> [comment] [comment-to]\n"
             "<amount> is a real and is rounded to the nearest 0.00000001\n"
             "requires wallet passphrase to be set with walletpassphrase first");
     if (!pwalletMain->IsCrypted() && (fHelp || params.size() < 2 || params.size() > 4))
         throw runtime_error(
             "sendtoaddress <bitcoinaddress> <amount> [comment] [comment-to]\n"
             "<amount> is a real and is rounded to the nearest 0.00000001");
 
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(-5, "Invalid bitcoin address");
 
     // Amount
     int64 nAmount = AmountFromValue(params[1]);
 
     // Wallet comments
     CWalletTx wtx;
     if (params.size() > 2 && params[2].type() != null_type && !params[2].get_str().empty())
         wtx.mapValue["comment"] = params[2].get_str();
     if (params.size() > 3 && params[3].type() != null_type && !params[3].get_str().empty())
         wtx.mapValue["to"]      = params[3].get_str();
 
     if (pwalletMain->IsLocked())
         throw JSONRPCError(-13, "Error: Please enter the wallet passphrase with walletpassphrase first.");
 
     string strError = pwalletMain->SendMoneyToBitcoinAddress(address, nAmount, wtx);
     if (strError != "")
         throw JSONRPCError(-4, strError);
 
     return wtx.GetHash().GetHex();
 }
 
 static const string strMessageMagic = "Bitcoin Signed Message:\n";
 
 Value signmessage(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 2)
         throw runtime_error(
             "signmessage <bitcoinaddress> <message>\n"
             "Sign a message with the private key of an address");
 
     if (pwalletMain->IsLocked())
         throw JSONRPCError(-13, "Error: Please enter the wallet passphrase with walletpassphrase first.");
 
     string strAddress = params[0].get_str();
     string strMessage = params[1].get_str();
 
     CBitcoinAddress addr(strAddress);
     if (!addr.IsValid())
         throw JSONRPCError(-3, "Invalid address");
 
     CKey key;
     if (!pwalletMain->GetKey(addr, key))
         throw JSONRPCError(-4, "Private key not available");
 
     CDataStream ss(SER_GETHASH);
     ss << strMessageMagic;
     ss << strMessage;
 
     vector<unsigned char> vchSig;
     if (!key.SignCompact(Hash(ss.begin(), ss.end()), vchSig))
         throw JSONRPCError(-5, "Sign failed");
 
     return EncodeBase64(&vchSig[0], vchSig.size());
 }
 
 Value verifymessage(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 3)
         throw runtime_error(
             "verifymessage <bitcoinaddress> <signature> <message>\n"
             "Verify a signed message");
 
     string strAddress  = params[0].get_str();
     string strSign     = params[1].get_str();
     string strMessage  = params[2].get_str();
 
     CBitcoinAddress addr(strAddress);
     if (!addr.IsValid())
         throw JSONRPCError(-3, "Invalid address");
 
     bool fInvalid = false;
     vector<unsigned char> vchSig = DecodeBase64(strSign.c_str(), &fInvalid);
 
     if (fInvalid)
         throw JSONRPCError(-5, "Malformed base64 encoding");
 
     CDataStream ss(SER_GETHASH);
     ss << strMessageMagic;
     ss << strMessage;
 
     CKey key;
     if (!key.SetCompactSignature(Hash(ss.begin(), ss.end()), vchSig))
         return false;
 
     return (key.GetAddress() == addr);
 }
 
 
 Value getreceivedbyaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "getreceivedbyaddress <bitcoinaddress> [minconf=1]\n"
             "Returns the total amount received by <bitcoinaddress> in transactions with at least [minconf] confirmations.");
 
     // Bitcoin address
     CBitcoinAddress address = CBitcoinAddress(params[0].get_str());
     CScript scriptPubKey;
     if (!address.IsValid())
         throw JSONRPCError(-5, "Invalid bitcoin address");
     scriptPubKey.SetBitcoinAddress(address);
     if (!IsMine(*pwalletMain,scriptPubKey))
         return (double)0.0;
 
     // Minimum confirmations
     int nMinDepth = 1;
     if (params.size() > 1)
         nMinDepth = params[1].get_int();
 
     // Tally
     int64 nAmount = 0;
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         if (wtx.IsCoinBase() || !wtx.IsFinal())
             continue;
 
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
             if (txout.scriptPubKey == scriptPubKey)
                 if (wtx.GetDepthInMainChain() >= nMinDepth)
                     nAmount += txout.nValue;
     }
 
     return  ValueFromAmount(nAmount);
 }
 
 
 void GetAccountAddresses(string strAccount, set<CBitcoinAddress>& setAddress)
 {
     BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, string)& item, pwalletMain->mapAddressBook)
     {
         const CBitcoinAddress& address = item.first;
         const string& strName = item.second;
         if (strName == strAccount)
             setAddress.insert(address);
     }
 }
 
 
 Value getreceivedbyaccount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "getreceivedbyaccount <account> [minconf=1]\n"
             "Returns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.");
 
     // Minimum confirmations
     int nMinDepth = 1;
     if (params.size() > 1)
         nMinDepth = params[1].get_int();
 
     // Get the set of pub keys that have the label
     string strAccount = AccountFromValue(params[0]);
     set<CBitcoinAddress> setAddress;
     GetAccountAddresses(strAccount, setAddress);
 
     // Tally
     int64 nAmount = 0;
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         if (wtx.IsCoinBase() || !wtx.IsFinal())
             continue;
 
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
         {
             CBitcoinAddress address;
             if (ExtractAddress(txout.scriptPubKey, pwalletMain, address) && setAddress.count(address))
                 if (wtx.GetDepthInMainChain() >= nMinDepth)
                     nAmount += txout.nValue;
         }
     }
 
     return (double)nAmount / (double)COIN;
 }
 
 
 int64 GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMinDepth)
 {
     int64 nBalance = 0;
 
     // Tally wallet transactions
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         if (!wtx.IsFinal())
             continue;
 
         int64 nGenerated, nReceived, nSent, nFee;
         wtx.GetAccountAmounts(strAccount, nGenerated, nReceived, nSent, nFee);
 
         if (nReceived != 0 && wtx.GetDepthInMainChain() >= nMinDepth)
             nBalance += nReceived;
         nBalance += nGenerated - nSent - nFee;
     }
 
     // Tally internal accounting entries
     nBalance += walletdb.GetAccountCreditDebit(strAccount);
 
     return nBalance;
 }
 
 int64 GetAccountBalance(const string& strAccount, int nMinDepth)
 {
     CWalletDB walletdb(pwalletMain->strWalletFile);
     return GetAccountBalance(walletdb, strAccount, nMinDepth);
 }
 
 
 Value getbalance(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 2)
         throw runtime_error(
             "getbalance [account] [minconf=1]\n"
             "If [account] is not specified, returns the server's total available balance.\n"
             "If [account] is specified, returns the balance in the account.");
 
     if (params.size() == 0)
         return  ValueFromAmount(pwalletMain->GetBalance());
 
     int nMinDepth = 1;
     if (params.size() > 1)
         nMinDepth = params[1].get_int();
 
     if (params[0].get_str() == "*") {
         // Calculate total balance a different way from GetBalance()
         // (GetBalance() sums up all unspent TxOuts)
         // getbalance and getbalance '*' should always return the same number.
         int64 nBalance = 0;
         for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
         {
             const CWalletTx& wtx = (*it).second;
             if (!wtx.IsFinal())
                 continue;
 
             int64 allGeneratedImmature, allGeneratedMature, allFee;
             allGeneratedImmature = allGeneratedMature = allFee = 0;
             string strSentAccount;
             list<pair<CBitcoinAddress, int64> > listReceived;
             list<pair<CBitcoinAddress, int64> > listSent;
             wtx.GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
             if (wtx.GetDepthInMainChain() >= nMinDepth)
                 BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress,int64)& r, listReceived)
                     nBalance += r.second;
             BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress,int64)& r, listSent)
                 nBalance -= r.second;
             nBalance -= allFee;
             nBalance += allGeneratedMature;
         }
         return  ValueFromAmount(nBalance);
     }
 
     string strAccount = AccountFromValue(params[0]);
 
     int64 nBalance = GetAccountBalance(strAccount, nMinDepth);
 
     return ValueFromAmount(nBalance);
 }
 
 
 Value movecmd(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 3 || params.size() > 5)
         throw runtime_error(
             "move <fromaccount> <toaccount> <amount> [minconf=1] [comment]\n"
             "Move from one account in your wallet to another.");
 
     string strFrom = AccountFromValue(params[0]);
     string strTo = AccountFromValue(params[1]);
     int64 nAmount = AmountFromValue(params[2]);
     if (params.size() > 3)
         // unused parameter, used to be nMinDepth, keep type-checking it though
         (void)params[3].get_int();
     string strComment;
     if (params.size() > 4)
         strComment = params[4].get_str();
 
     CWalletDB walletdb(pwalletMain->strWalletFile);
     walletdb.TxnBegin();
 
     int64 nNow = GetAdjustedTime();
 
     // Debit
     CAccountingEntry debit;
     debit.strAccount = strFrom;
     debit.nCreditDebit = -nAmount;
     debit.nTime = nNow;
     debit.strOtherAccount = strTo;
     debit.strComment = strComment;
     walletdb.WriteAccountingEntry(debit);
 
     // Credit
     CAccountingEntry credit;
     credit.strAccount = strTo;
     credit.nCreditDebit = nAmount;
     credit.nTime = nNow;
     credit.strOtherAccount = strFrom;
     credit.strComment = strComment;
     walletdb.WriteAccountingEntry(credit);
 
     walletdb.TxnCommit();
 
     return true;
 }
 
 
 Value sendfrom(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() < 3 || params.size() > 6))
         throw runtime_error(
             "sendfrom <fromaccount> <tobitcoinaddress> <amount> [minconf=1] [comment] [comment-to]\n"
             "<amount> is a real and is rounded to the nearest 0.00000001\n"
             "requires wallet passphrase to be set with walletpassphrase first");
     if (!pwalletMain->IsCrypted() && (fHelp || params.size() < 3 || params.size() > 6))
         throw runtime_error(
             "sendfrom <fromaccount> <tobitcoinaddress> <amount> [minconf=1] [comment] [comment-to]\n"
             "<amount> is a real and is rounded to the nearest 0.00000001");
 
     string strAccount = AccountFromValue(params[0]);
     CBitcoinAddress address(params[1].get_str());
     if (!address.IsValid())
         throw JSONRPCError(-5, "Invalid bitcoin address");
     int64 nAmount = AmountFromValue(params[2]);
     int nMinDepth = 1;
     if (params.size() > 3)
         nMinDepth = params[3].get_int();
 
     CWalletTx wtx;
     wtx.strFromAccount = strAccount;
     if (params.size() > 4 && params[4].type() != null_type && !params[4].get_str().empty())
         wtx.mapValue["comment"] = params[4].get_str();
     if (params.size() > 5 && params[5].type() != null_type && !params[5].get_str().empty())
         wtx.mapValue["to"]      = params[5].get_str();
 
     if (pwalletMain->IsLocked())
         throw JSONRPCError(-13, "Error: Please enter the wallet passphrase with walletpassphrase first.");
 
     // Check funds
     int64 nBalance = GetAccountBalance(strAccount, nMinDepth);
     if (nAmount > nBalance)
         throw JSONRPCError(-6, "Account has insufficient funds");
 
     // Send
     string strError = pwalletMain->SendMoneyToBitcoinAddress(address, nAmount, wtx);
     if (strError != "")
         throw JSONRPCError(-4, strError);
 
     return wtx.GetHash().GetHex();
 }
 
 
 Value sendmany(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() < 2 || params.size() > 4))
         throw runtime_error(
             "sendmany <fromaccount> {address:amount,...} [minconf=1] [comment]\n"
             "amounts are double-precision floating point numbers\n"
             "requires wallet passphrase to be set with walletpassphrase first");
     if (!pwalletMain->IsCrypted() && (fHelp || params.size() < 2 || params.size() > 4))
         throw runtime_error(
             "sendmany <fromaccount> {address:amount,...} [minconf=1] [comment]\n"
             "amounts are double-precision floating point numbers");
 
     string strAccount = AccountFromValue(params[0]);
     Object sendTo = params[1].get_obj();
     int nMinDepth = 1;
     if (params.size() > 2)
         nMinDepth = params[2].get_int();
 
     CWalletTx wtx;
     wtx.strFromAccount = strAccount;
     if (params.size() > 3 && params[3].type() != null_type && !params[3].get_str().empty())
         wtx.mapValue["comment"] = params[3].get_str();
 
     set<CBitcoinAddress> setAddress;
     vector<pair<CScript, int64> > vecSend;
 
     int64 totalAmount = 0;
     BOOST_FOREACH(const Pair& s, sendTo)
     {
         CBitcoinAddress address(s.name_);
         if (!address.IsValid())
             throw JSONRPCError(-5, string("Invalid bitcoin address:")+s.name_);
 
         if (setAddress.count(address))
             throw JSONRPCError(-8, string("Invalid parameter, duplicated address: ")+s.name_);
         setAddress.insert(address);
 
         CScript scriptPubKey;
         scriptPubKey.SetBitcoinAddress(address);
         int64 nAmount = AmountFromValue(s.value_); 
         totalAmount += nAmount;
 
         vecSend.push_back(make_pair(scriptPubKey, nAmount));
     }
 
     if (pwalletMain->IsLocked())
         throw JSONRPCError(-13, "Error: Please enter the wallet passphrase with walletpassphrase first.");
 
     // Check funds
     int64 nBalance = GetAccountBalance(strAccount, nMinDepth);
     if (totalAmount > nBalance)
         throw JSONRPCError(-6, "Account has insufficient funds");
 
     // Send
     CReserveKey keyChange(pwalletMain);
     int64 nFeeRequired = 0;
     bool fCreated = pwalletMain->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired);
     if (!fCreated)
     {
         if (totalAmount + nFeeRequired > pwalletMain->GetBalance())
             throw JSONRPCError(-6, "Insufficient funds");
         throw JSONRPCError(-4, "Transaction creation failed");
     }
     if (!pwalletMain->CommitTransaction(wtx, keyChange))
         throw JSONRPCError(-4, "Transaction commit failed");
 
     return wtx.GetHash().GetHex();
 }
 
 
 struct tallyitem
 {
     int64 nAmount;
     int nConf;
     tallyitem()
     {
         nAmount = 0;
         nConf = INT_MAX;
     }
 };
 
 Value ListReceived(const Array& params, bool fByAccounts)
 {
     // Minimum confirmations
     int nMinDepth = 1;
     if (params.size() > 0)
         nMinDepth = params[0].get_int();
 
     // Whether to include empty accounts
     bool fIncludeEmpty = false;
     if (params.size() > 1)
         fIncludeEmpty = params[1].get_bool();
 
     // Tally
     map<CBitcoinAddress, tallyitem> mapTally;
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         if (wtx.IsCoinBase() || !wtx.IsFinal())
             continue;
 
         int nDepth = wtx.GetDepthInMainChain();
         if (nDepth < nMinDepth)
             continue;
 
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
         {
             CBitcoinAddress address;
             if (!ExtractAddress(txout.scriptPubKey, pwalletMain, address) || !address.IsValid())
                 continue;
 
             tallyitem& item = mapTally[address];
             item.nAmount += txout.nValue;
             item.nConf = min(item.nConf, nDepth);
         }
     }
 
     // Reply
     Array ret;
     map<string, tallyitem> mapAccountTally;
     BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, string)& item, pwalletMain->mapAddressBook)
     {
         const CBitcoinAddress& address = item.first;
         const string& strAccount = item.second;
         map<CBitcoinAddress, tallyitem>::iterator it = mapTally.find(address);
         if (it == mapTally.end() && !fIncludeEmpty)
             continue;
 
         int64 nAmount = 0;
         int nConf = INT_MAX;
         if (it != mapTally.end())
         {
             nAmount = (*it).second.nAmount;
             nConf = (*it).second.nConf;
         }
 
         if (fByAccounts)
         {
             tallyitem& item = mapAccountTally[strAccount];
             item.nAmount += nAmount;
             item.nConf = min(item.nConf, nConf);
         }
         else
         {
             Object obj;
             obj.push_back(Pair("address",       address.ToString()));
             obj.push_back(Pair("account",       strAccount));
             obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
             obj.push_back(Pair("confirmations", (nConf == INT_MAX ? 0 : nConf)));
             ret.push_back(obj);
         }
     }
 
     if (fByAccounts)
     {
         for (map<string, tallyitem>::iterator it = mapAccountTally.begin(); it != mapAccountTally.end(); ++it)
         {
             int64 nAmount = (*it).second.nAmount;
             int nConf = (*it).second.nConf;
             Object obj;
             obj.push_back(Pair("account",       (*it).first));
             obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
             obj.push_back(Pair("confirmations", (nConf == INT_MAX ? 0 : nConf)));
             ret.push_back(obj);
         }
     }
 
     return ret;
 }
 
 Value listreceivedbyaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 2)
         throw runtime_error(
             "listreceivedbyaddress [minconf=1] [includeempty=false]\n"
             "[minconf] is the minimum number of confirmations before payments are included.\n"
             "[includeempty] whether to include addresses that haven't received any payments.\n"
             "Returns an array of objects containing:\n"
             "  \"address\" : receiving address\n"
             "  \"account\" : the account of the receiving address\n"
             "  \"amount\" : total amount received by the address\n"
             "  \"confirmations\" : number of confirmations of the most recent transaction included");
 
     return ListReceived(params, false);
 }
 
 Value listreceivedbyaccount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 2)
         throw runtime_error(
             "listreceivedbyaccount [minconf=1] [includeempty=false]\n"
             "[minconf] is the minimum number of confirmations before payments are included.\n"
             "[includeempty] whether to include accounts that haven't received any payments.\n"
             "Returns an array of objects containing:\n"
             "  \"account\" : the account of the receiving addresses\n"
             "  \"amount\" : total amount received by addresses with this account\n"
             "  \"confirmations\" : number of confirmations of the most recent transaction included");
 
     return ListReceived(params, true);
 }
 
 void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDepth, bool fLong, Array& ret)
 {
     int64 nGeneratedImmature, nGeneratedMature, nFee;
     string strSentAccount;
     list<pair<CBitcoinAddress, int64> > listReceived;
     list<pair<CBitcoinAddress, int64> > listSent;
     wtx.GetAmounts(nGeneratedImmature, nGeneratedMature, listReceived, listSent, nFee, strSentAccount);
 
     bool fAllAccounts = (strAccount == string("*"));
 
     // Generated blocks assigned to account ""
     if ((nGeneratedMature+nGeneratedImmature) != 0 && (fAllAccounts || strAccount == ""))
     {
         Object entry;
         entry.push_back(Pair("account", string("")));
         if (nGeneratedImmature)
         {
             entry.push_back(Pair("category", wtx.GetDepthInMainChain() ? "immature" : "orphan"));
             entry.push_back(Pair("amount", ValueFromAmount(nGeneratedImmature)));
         }
         else
         {
             entry.push_back(Pair("category", "generate"));
             entry.push_back(Pair("amount", ValueFromAmount(nGeneratedMature)));
         }
         if (fLong)
             WalletTxToJSON(wtx, entry);
         ret.push_back(entry);
     }
 
     // Sent
     if ((!listSent.empty() || nFee != 0) && (fAllAccounts || strAccount == strSentAccount))
     {
         BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, int64)& s, listSent)
         {
             Object entry;
             entry.push_back(Pair("account", strSentAccount));
             entry.push_back(Pair("address", s.first.ToString()));
             entry.push_back(Pair("category", "send"));
             entry.push_back(Pair("amount", ValueFromAmount(-s.second)));
             entry.push_back(Pair("fee", ValueFromAmount(-nFee)));
             if (fLong)
                 WalletTxToJSON(wtx, entry);
             ret.push_back(entry);
         }
     }
 
     // Received
     if (listReceived.size() > 0 && wtx.GetDepthInMainChain() >= nMinDepth)
         BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, int64)& r, listReceived)
         {
             string account;
             if (pwalletMain->mapAddressBook.count(r.first))
                 account = pwalletMain->mapAddressBook[r.first];
             if (fAllAccounts || (account == strAccount))
             {
                 Object entry;
                 entry.push_back(Pair("account", account));
                 entry.push_back(Pair("address", r.first.ToString()));
                 entry.push_back(Pair("category", "receive"));
                 entry.push_back(Pair("amount", ValueFromAmount(r.second)));
                 if (fLong)
                     WalletTxToJSON(wtx, entry);
                 ret.push_back(entry);
             }
         }
 }
 
 void AcentryToJSON(const CAccountingEntry& acentry, const string& strAccount, Array& ret)
 {
     bool fAllAccounts = (strAccount == string("*"));
 
     if (fAllAccounts || acentry.strAccount == strAccount)
     {
         Object entry;
         entry.push_back(Pair("account", acentry.strAccount));
         entry.push_back(Pair("category", "move"));
         entry.push_back(Pair("time", (boost::int64_t)acentry.nTime));
         entry.push_back(Pair("amount", ValueFromAmount(acentry.nCreditDebit)));
         entry.push_back(Pair("otheraccount", acentry.strOtherAccount));
         entry.push_back(Pair("comment", acentry.strComment));
         ret.push_back(entry);
     }
 }
 
 Value listtransactions(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 3)
         throw runtime_error(
             "listtransactions [account] [count=10] [from=0]\n"
             "Returns up to [count] most recent transactions skipping the first [from] transactions for account [account].");
 
     string strAccount = "*";
     if (params.size() > 0)
         strAccount = params[0].get_str();
     int nCount = 10;
     if (params.size() > 1)
         nCount = params[1].get_int();
     int nFrom = 0;
     if (params.size() > 2)
         nFrom = params[2].get_int();
 
     Array ret;
     CWalletDB walletdb(pwalletMain->strWalletFile);
 
     // Firs: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap:
     typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
     typedef multimap<int64, TxPair > TxItems;
     TxItems txByTime;
 
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         CWalletTx* wtx = &((*it).second);
         txByTime.insert(make_pair(wtx->GetTxTime(), TxPair(wtx, (CAccountingEntry*)0)));
     }
     list<CAccountingEntry> acentries;
     walletdb.ListAccountCreditDebit(strAccount, acentries);
     BOOST_FOREACH(CAccountingEntry& entry, acentries)
     {
         txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
     }
 
     // Now: iterate backwards until we have nCount items to return:
     TxItems::reverse_iterator it = txByTime.rbegin();
     if (txByTime.size() > nFrom) std::advance(it, nFrom);
     for (; it != txByTime.rend(); ++it)
     {
         CWalletTx *const pwtx = (*it).second.first;
         if (pwtx != 0)
             ListTransactions(*pwtx, strAccount, 0, true, ret);
         CAccountingEntry *const pacentry = (*it).second.second;
         if (pacentry != 0)
             AcentryToJSON(*pacentry, strAccount, ret);
 
         if (ret.size() >= nCount) break;
     }
     // ret is now newest to oldest
     
     // Make sure we return only last nCount items (sends-to-self might give us an extra):
     if (ret.size() > nCount)
     {
         Array::iterator last = ret.begin();
         std::advance(last, nCount);
         ret.erase(last, ret.end());
     }
     std::reverse(ret.begin(), ret.end()); // oldest to newest
 
     return ret;
 }
 
 Value listaccounts(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
             "listaccounts [minconf=1]\n"
             "Returns Object that has account names as keys, account balances as values.");
 
     int nMinDepth = 1;
     if (params.size() > 0)
         nMinDepth = params[0].get_int();
 
     map<string, int64> mapAccountBalances;
     BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, string)& entry, pwalletMain->mapAddressBook) {
         if (pwalletMain->HaveKey(entry.first)) // This address belongs to me
             mapAccountBalances[entry.second] = 0;
     }
 
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         int64 nGeneratedImmature, nGeneratedMature, nFee;
         string strSentAccount;
         list<pair<CBitcoinAddress, int64> > listReceived;
         list<pair<CBitcoinAddress, int64> > listSent;
         wtx.GetAmounts(nGeneratedImmature, nGeneratedMature, listReceived, listSent, nFee, strSentAccount);
         mapAccountBalances[strSentAccount] -= nFee;
         BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, int64)& s, listSent)
             mapAccountBalances[strSentAccount] -= s.second;
         if (wtx.GetDepthInMainChain() >= nMinDepth)
         {
             mapAccountBalances[""] += nGeneratedMature;
             BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress, int64)& r, listReceived)
                 if (pwalletMain->mapAddressBook.count(r.first))
                     mapAccountBalances[pwalletMain->mapAddressBook[r.first]] += r.second;
                 else
                     mapAccountBalances[""] += r.second;
         }
     }
 
     list<CAccountingEntry> acentries;
     CWalletDB(pwalletMain->strWalletFile).ListAccountCreditDebit("*", acentries);
     BOOST_FOREACH(const CAccountingEntry& entry, acentries)
         mapAccountBalances[entry.strAccount] += entry.nCreditDebit;
 
     Object ret;
     BOOST_FOREACH(const PAIRTYPE(string, int64)& accountBalance, mapAccountBalances) {
         ret.push_back(Pair(accountBalance.first, ValueFromAmount(accountBalance.second)));
     }
     return ret;
 }
 
 Value listsinceblock(const Array& params, bool fHelp)
 {
     if (fHelp)
         throw runtime_error(
             "listsinceblock [blockid] [target-confirmations]\n"
             "Get all transactions in blocks since block [blockid], or all transactions if omitted");
 
     CBlockIndex *pindex = NULL;
     int target_confirms = 1;
 
     if (params.size() > 0)
     {
         uint256 blockId = 0;
 
         blockId.SetHex(params[0].get_str());
         pindex = CBlockLocator(blockId).GetBlockIndex();
     }
 
     if (params.size() > 1)
     {
         target_confirms = params[1].get_int();
 
         if (target_confirms < 1)
             throw JSONRPCError(-8, "Invalid parameter");
     }
 
     int depth = pindex ? (1 + nBestHeight - pindex->nHeight) : -1;
 
     Array transactions;
 
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); it++)
     {
         CWalletTx tx = (*it).second;
 
         if (depth == -1 || tx.GetDepthInMainChain() < depth)
             ListTransactions(tx, "*", 0, true, transactions);
     }
 
     uint256 lastblock;
 
     if (target_confirms == 1)
     {
         printf("oops!\n");
         lastblock = hashBestChain;
     }
     else
     {
         int target_height = pindexBest->nHeight + 1 - target_confirms;
 
         CBlockIndex *block;
         for (block = pindexBest;
              block && block->nHeight > target_height;
              block = block->pprev)  { }
 
         lastblock = block ? block->GetBlockHash() : 0;
     }
 
     Object ret;
     ret.push_back(Pair("transactions", transactions));
     ret.push_back(Pair("lastblock", lastblock.GetHex()));
 
     return ret;
 }
 
 Value gettransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "gettransaction <txid>\n"
             "Get detailed information about <txid>");
 
     uint256 hash;
     hash.SetHex(params[0].get_str());
 
     Object entry;
 
     if (!pwalletMain->mapWallet.count(hash))
         throw JSONRPCError(-5, "Invalid or non-wallet transaction id");
     const CWalletTx& wtx = pwalletMain->mapWallet[hash];
 
     int64 nCredit = wtx.GetCredit();
     int64 nDebit = wtx.GetDebit();
     int64 nNet = nCredit - nDebit;
     int64 nFee = (wtx.IsFromMe() ? wtx.GetValueOut() - nDebit : 0);
 
     entry.push_back(Pair("amount", ValueFromAmount(nNet - nFee)));
     if (wtx.IsFromMe())
         entry.push_back(Pair("fee", ValueFromAmount(nFee)));
 
     WalletTxToJSON(pwalletMain->mapWallet[hash], entry);
 
     Array details;
     ListTransactions(pwalletMain->mapWallet[hash], "*", 0, false, details);
     entry.push_back(Pair("details", details));
 
     return entry;
 }
 
 
 Value backupwallet(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "backupwallet <destination>\n"
             "Safely copies wallet.dat to destination, which can be a directory or a path with filename.");
 
     string strDest = params[0].get_str();
     BackupWallet(*pwalletMain, strDest);
 
     return Value::null;
 }
 
 
 Value keypoolrefill(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() > 0))
         throw runtime_error(
             "keypoolrefill\n"
             "Fills the keypool, requires wallet passphrase to be set.");
     if (!pwalletMain->IsCrypted() && (fHelp || params.size() > 0))
         throw runtime_error(
             "keypoolrefill\n"
             "Fills the keypool.");
 
     if (pwalletMain->IsLocked())
         throw JSONRPCError(-13, "Error: Please enter the wallet passphrase with walletpassphrase first.");
 
     pwalletMain->TopUpKeyPool();
 
     if (pwalletMain->GetKeyPoolSize() < GetArg("-keypool", 100))
         throw JSONRPCError(-4, "Error refreshing keypool.");
 
     return Value::null;
 }
 
 
 void ThreadTopUpKeyPool(void* parg)
 {
     pwalletMain->TopUpKeyPool();
 }
 
 void ThreadCleanWalletPassphrase(void* parg)
 {
     int64 nMyWakeTime = GetTimeMillis() + *((int64*)parg) * 1000;
 
     ENTER_CRITICAL_SECTION(cs_nWalletUnlockTime);
 
     if (nWalletUnlockTime == 0)
     {
         nWalletUnlockTime = nMyWakeTime;
 
         do
         {
             if (nWalletUnlockTime==0)
                 break;
             int64 nToSleep = nWalletUnlockTime - GetTimeMillis();
             if (nToSleep <= 0)
                 break;
 
             LEAVE_CRITICAL_SECTION(cs_nWalletUnlockTime);
             Sleep(nToSleep);
             ENTER_CRITICAL_SECTION(cs_nWalletUnlockTime);
 
         } while(1);
 
         if (nWalletUnlockTime)
         {
             nWalletUnlockTime = 0;
             pwalletMain->Lock();
         }
     }
     else
     {
         if (nWalletUnlockTime < nMyWakeTime)
             nWalletUnlockTime = nMyWakeTime;
     }
 
     LEAVE_CRITICAL_SECTION(cs_nWalletUnlockTime);
 
     delete (int64*)parg;
 }
 
 Value walletpassphrase(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() != 2))
         throw runtime_error(
             "walletpassphrase <passphrase> <timeout>\n"
             "Stores the wallet decryption key in memory for <timeout> seconds.");
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
         throw JSONRPCError(-15, "Error: running with an unencrypted wallet, but walletpassphrase was called.");
 
     if (!pwalletMain->IsLocked())
         throw JSONRPCError(-17, "Error: Wallet is already unlocked.");
 
     // Note that the walletpassphrase is stored in params[0] which is not mlock()ed
     SecureString strWalletPass;
     strWalletPass.reserve(100);
     // TODO: get rid of this .c_str() by implementing SecureString::operator=(std::string)
     // Alternately, find a way to make params[0] mlock()'d to begin with.
     strWalletPass = params[0].get_str().c_str();
 
     if (strWalletPass.length() > 0)
     {
         if (!pwalletMain->Unlock(strWalletPass))
             throw JSONRPCError(-14, "Error: The wallet passphrase entered was incorrect.");
     }
     else
         throw runtime_error(
             "walletpassphrase <passphrase> <timeout>\n"
             "Stores the wallet decryption key in memory for <timeout> seconds.");
 
     CreateThread(ThreadTopUpKeyPool, NULL);
     int64* pnSleepTime = new int64(params[1].get_int64());
     CreateThread(ThreadCleanWalletPassphrase, pnSleepTime);
 
     return Value::null;
 }
 
 
 Value walletpassphrasechange(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() != 2))
         throw runtime_error(
             "walletpassphrasechange <oldpassphrase> <newpassphrase>\n"
             "Changes the wallet passphrase from <oldpassphrase> to <newpassphrase>.");
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
         throw JSONRPCError(-15, "Error: running with an unencrypted wallet, but walletpassphrasechange was called.");
 
     // TODO: get rid of these .c_str() calls by implementing SecureString::operator=(std::string)
     // Alternately, find a way to make params[0] mlock()'d to begin with.
     SecureString strOldWalletPass;
     strOldWalletPass.reserve(100);
     strOldWalletPass = params[0].get_str().c_str();
 
     SecureString strNewWalletPass;
     strNewWalletPass.reserve(100);
     strNewWalletPass = params[1].get_str().c_str();
 
     if (strOldWalletPass.length() < 1 || strNewWalletPass.length() < 1)
         throw runtime_error(
             "walletpassphrasechange <oldpassphrase> <newpassphrase>\n"
             "Changes the wallet passphrase from <oldpassphrase> to <newpassphrase>.");
 
     if (!pwalletMain->ChangeWalletPassphrase(strOldWalletPass, strNewWalletPass))
         throw JSONRPCError(-14, "Error: The wallet passphrase entered was incorrect.");
 
     return Value::null;
 }
 
 
 Value walletlock(const Array& params, bool fHelp)
 {
     if (pwalletMain->IsCrypted() && (fHelp || params.size() != 0))
         throw runtime_error(
             "walletlock\n"
             "Removes the wallet encryption key from memory, locking the wallet.\n"
             "After calling this method, you will need to call walletpassphrase again\n"
             "before being able to call any methods which require the wallet to be unlocked.");
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
         throw JSONRPCError(-15, "Error: running with an unencrypted wallet, but walletlock was called.");
 
     CRITICAL_BLOCK(cs_nWalletUnlockTime)
     {
         pwalletMain->Lock();
         nWalletUnlockTime = 0;
     }
 
     return Value::null;
 }
 
 
 Value encryptwallet(const Array& params, bool fHelp)
 {
     if (!pwalletMain->IsCrypted() && (fHelp || params.size() != 1))
         throw runtime_error(
             "encryptwallet <passphrase>\n"
             "Encrypts the wallet with <passphrase>.");
     if (fHelp)
         return true;
     if (pwalletMain->IsCrypted())
         throw JSONRPCError(-15, "Error: running with an encrypted wallet, but encryptwallet was called.");
 
     // TODO: get rid of this .c_str() by implementing SecureString::operator=(std::string)
     // Alternately, find a way to make params[0] mlock()'d to begin with.
     SecureString strWalletPass;
     strWalletPass.reserve(100);
     strWalletPass = params[0].get_str().c_str();
 
     if (strWalletPass.length() < 1)
         throw runtime_error(
             "encryptwallet <passphrase>\n"
             "Encrypts the wallet with <passphrase>.");
 
     if (!pwalletMain->EncryptWallet(strWalletPass))
         throw JSONRPCError(-16, "Error: Failed to encrypt the wallet.");
 
     // BDB seems to have a bad habit of writing old data into
     // slack space in .dat files; that is bad if the old data is
     // unencrypted private keys.  So:
     CreateThread(Shutdown, NULL);
     return "wallet encrypted; bitcoin server stopping, restart to run with encrypted wallet";
 }
 
 
 Value validateaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "validateaddress <bitcoinaddress>\n"
             "Return information about <bitcoinaddress>.");
 
     CBitcoinAddress address(params[0].get_str());
     bool isValid = address.IsValid();
 
     Object ret;
     ret.push_back(Pair("isvalid", isValid));
     if (isValid)
     {
         // Call Hash160ToAddress() so we always return current ADDRESSVERSION
         // version of the address:
         string currentAddress = address.ToString();
         ret.push_back(Pair("address", currentAddress));
         ret.push_back(Pair("ismine", (pwalletMain->HaveKey(address) > 0)));
         if (pwalletMain->mapAddressBook.count(address))
             ret.push_back(Pair("account", pwalletMain->mapAddressBook[address]));
     }
     return ret;
 }
 
 
 Value getwork(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
             "getwork [data]\n"
             "If [data] is not specified, returns formatted hash data to work on:\n"
             "  \"midstate\" : precomputed hash state after hashing the first half of the data (DEPRECATED)\n" // deprecated
             "  \"data\" : block data\n"
             "  \"hash1\" : formatted hash buffer for second hash (DEPRECATED)\n" // deprecated
             "  \"target\" : little endian hash target\n"
             "If [data] is specified, tries to solve the block and returns true if it was successful.");
 
     if (vNodes.empty())
         throw JSONRPCError(-9, "Bitcoin is not connected!");
 
     if (IsInitialBlockDownload())
         throw JSONRPCError(-10, "Bitcoin is downloading blocks...");
 
     typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
     static mapNewBlock_t mapNewBlock;
     static vector<CBlock*> vNewBlock;
     static CReserveKey reservekey(pwalletMain);
 
     if (params.size() == 0)
     {
         // Update block
         static unsigned int nTransactionsUpdatedLast;
         static CBlockIndex* pindexPrev;
         static int64 nStart;
         static CBlock* pblock;
         if (pindexPrev != pindexBest ||
             (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60))
         {
             if (pindexPrev != pindexBest)
             {
                 // Deallocate old blocks since they're obsolete now
                 mapNewBlock.clear();
                 BOOST_FOREACH(CBlock* pblock, vNewBlock)
                     delete pblock;
                 vNewBlock.clear();
             }
             nTransactionsUpdatedLast = nTransactionsUpdated;
             pindexPrev = pindexBest;
             nStart = GetTime();
 
             // Create new block
             pblock = CreateNewBlock(reservekey);
             if (!pblock)
                 throw JSONRPCError(-7, "Out of memory");
             vNewBlock.push_back(pblock);
         }
 
         // Update nTime
         pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
         pblock->nNonce = 0;
 
         // Update nExtraNonce
         static unsigned int nExtraNonce = 0;
         IncrementExtraNonce(pblock, pindexPrev, nExtraNonce);
 
         // Save
         mapNewBlock[pblock->hashMerkleRoot] = make_pair(pblock, pblock->vtx[0].vin[0].scriptSig);
 
         // Prebuild hash buffers
         char pmidstate[32];
         char pdata[128];
         char phash1[64];
         FormatHashBuffers(pblock, pmidstate, pdata, phash1);
 
         uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
 
         Object result;
         result.push_back(Pair("midstate", HexStr(BEGIN(pmidstate), END(pmidstate)))); // deprecated
         result.push_back(Pair("data",     HexStr(BEGIN(pdata), END(pdata))));
         result.push_back(Pair("hash1",    HexStr(BEGIN(phash1), END(phash1)))); // deprecated
         result.push_back(Pair("target",   HexStr(BEGIN(hashTarget), END(hashTarget))));
         return result;
     }
     else
     {
         // Parse parameters
         vector<unsigned char> vchData = ParseHex(params[0].get_str());
         if (vchData.size() != 128)
             throw JSONRPCError(-8, "Invalid parameter");
         CBlock* pdata = (CBlock*)&vchData[0];
 
         // Byte reverse
         for (int i = 0; i < 128/4; i++)
             ((unsigned int*)pdata)[i] = ByteReverse(((unsigned int*)pdata)[i]);
 
         // Get saved block
         if (!mapNewBlock.count(pdata->hashMerkleRoot))
             return false;
         CBlock* pblock = mapNewBlock[pdata->hashMerkleRoot].first;
 
         pblock->nTime = pdata->nTime;
         pblock->nNonce = pdata->nNonce;
         pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second;
         pblock->hashMerkleRoot = pblock->BuildMerkleTree();
 
         return CheckWork(pblock, *pwalletMain, reservekey);
     }
 }
 
 
 Value getmemorypool(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
             "getmemorypool [data]\n"
             "If [data] is not specified, returns data needed to construct a block to work on:\n"
             "  \"version\" : block version\n"
             "  \"previousblockhash\" : hash of current highest block\n"
             "  \"transactions\" : contents of non-coinbase transactions that should be included in the next block\n"
             "  \"coinbasevalue\" : maximum allowable input to coinbase transaction, including the generation award and transaction fees\n"
             "  \"time\" : timestamp appropriate for next block\n"
             "  \"bits\" : compressed target of next block\n"
             "If [data] is specified, tries to solve the block and returns true if it was successful.");
 
     if (params.size() == 0)
     {
         if (vNodes.empty())
             throw JSONRPCError(-9, "Bitcoin is not connected!");
 
         if (IsInitialBlockDownload())
             throw JSONRPCError(-10, "Bitcoin is downloading blocks...");
 
         static CReserveKey reservekey(pwalletMain);
 
         // Update block
         static unsigned int nTransactionsUpdatedLast;
         static CBlockIndex* pindexPrev;
         static int64 nStart;
         static CBlock* pblock;
         if (pindexPrev != pindexBest ||
             (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 5))
         {
             nTransactionsUpdatedLast = nTransactionsUpdated;
             pindexPrev = pindexBest;
             nStart = GetTime();
 
             // Create new block
             if(pblock)
                 delete pblock;
             pblock = CreateNewBlock(reservekey);
             if (!pblock)
                 throw JSONRPCError(-7, "Out of memory");
         }
 
         // Update nTime
         pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
         pblock->nNonce = 0;
 
         Array transactions;
         BOOST_FOREACH(CTransaction tx, pblock->vtx) {
             if(tx.IsCoinBase())
                 continue;
 
             CDataStream ssTx;
             ssTx << tx;
 
             transactions.push_back(HexStr(ssTx.begin(), ssTx.end()));
         }
 
         Object result;
         result.push_back(Pair("version", pblock->nVersion));
         result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
         result.push_back(Pair("transactions", transactions));
         result.push_back(Pair("coinbasevalue", (boost::int64_t)pblock->vtx[0].vout[0].nValue));
         result.push_back(Pair("time", (boost::int64_t)pblock->nTime));
 
         union {
             int32_t nBits;
             char cBits[4];
         } uBits;
         uBits.nBits = htonl((int32_t)pblock->nBits);
         result.push_back(Pair("bits", HexStr(BEGIN(uBits.cBits), END(uBits.cBits))));
 
         return result;
     }
     else
     {
         // Parse parameters
         CDataStream ssBlock(ParseHex(params[0].get_str()));
         CBlock pblock;
         ssBlock >> pblock;
 
         return ProcessBlock(NULL, &pblock);
     }
 }
 
 
 Value dumpblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 2)
         throw runtime_error(
             "dumpblock <height> <filename>\n"
             "Emit the block at <height> to <filename>.");
 
     int want_height = 0;
     if (params.size() > 0)
         want_height = params[0].get_int();
 
     if (want_height > nBestHeight)
         throw runtime_error("Requested block exceeds current nBestHeight!\n");
 
     // path to dump block to
     string filename = params[1].get_str();
 
     // this is O(n^2)...
     // possibly could be improved if we descend from best height if requested height is closer to it
     for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
     {
         CBlockIndex *pindex = (*mi).second;
     if (pindex->nHeight == want_height) {
         CBlock block;
         block.ReadFromDisk(pindex);
         printf("Dumping block %d to %s\n", want_height, filename.c_str());
         CAutoFile fileout = fopen(filename.c_str(), "wb+");
         fileout << block;
         return true;
     }
     }
     return false;
 }
 
 
 Value eatblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 1)
         throw runtime_error(
             "eatblock <filename>\n"
             "Load a candidate for the next block directly from <filename>.");
 
     if (!fCanEat)
         throw runtime_error(
             "'eatblock' is only permitted if bitcoind was started with -caneat flag!");
 
     // path to load block from
     string filename = params[0].get_str();
     
     printf("Attempting to create block #%d from file %s\n", nBestHeight + 1, filename.c_str());
     CAutoFile filein = fopen(filename.c_str(), "rb");
     CBlock block;
     filein >> block;
     return ProcessBlock(NULL, &block); // note that 'true' even if it was rejected (bastard, etc)
 } // ... but will return 'false' if we already have the block.
 
 
 
 //
 // Call Table
 //
 
 pair<string, rpcfn_type> pCallTable[] =
 {
     make_pair("help",                   &help),
     make_pair("stop",                   &stop),
     make_pair("getblockcount",          &getblockcount),
     make_pair("getblocknumber",         &getblocknumber),
     make_pair("getconnectioncount",     &getconnectioncount),
     make_pair("getdifficulty",          &getdifficulty),
     make_pair("getgenerate",            &getgenerate),
     make_pair("setgenerate",            &setgenerate),
     make_pair("gethashespersec",        &gethashespersec),
     make_pair("getinfo",                &getinfo),
     make_pair("getnewaddress",          &getnewaddress),
     make_pair("getaccountaddress",      &getaccountaddress),
     make_pair("setaccount",             &setaccount),
     make_pair("getaccount",             &getaccount),
     make_pair("getaddressesbyaccount",  &getaddressesbyaccount),
     make_pair("sendtoaddress",          &sendtoaddress),
     make_pair("getreceivedbyaddress",   &getreceivedbyaddress),
     make_pair("getreceivedbyaccount",   &getreceivedbyaccount),
     make_pair("listreceivedbyaddress",  &listreceivedbyaddress),
     make_pair("listreceivedbyaccount",  &listreceivedbyaccount),
     make_pair("backupwallet",           &backupwallet),
     make_pair("keypoolrefill",          &keypoolrefill),
     make_pair("walletpassphrase",       &walletpassphrase),
     make_pair("walletpassphrasechange", &walletpassphrasechange),
     make_pair("walletlock",             &walletlock),
     make_pair("encryptwallet",          &encryptwallet),
     make_pair("validateaddress",        &validateaddress),
     make_pair("getbalance",             &getbalance),
     make_pair("move",                   &movecmd),
     make_pair("sendfrom",               &sendfrom),
     make_pair("sendmany",               &sendmany),
     make_pair("gettransaction",         &gettransaction),
     make_pair("listtransactions",       &listtransactions),
     make_pair("signmessage",           &signmessage),
     make_pair("verifymessage",         &verifymessage),
     make_pair("getwork",                &getwork),
     make_pair("listaccounts",           &listaccounts),
     make_pair("settxfee",               &settxfee),
     make_pair("getmemorypool",          &getmemorypool),
     make_pair("listsinceblock",        &listsinceblock),
     make_pair("dumpblock",              &dumpblock),
     make_pair("eatblock",               &eatblock),
 };
 map<string, rpcfn_type> mapCallTable(pCallTable, pCallTable + sizeof(pCallTable)/sizeof(pCallTable[0]));
 
 string pAllowInSafeMode[] =
 {
     "help",
     "stop",
     "getblockcount",
     "getblocknumber",  // deprecated
     "getconnectioncount",
     "getdifficulty",
     "getgenerate",
     "setgenerate",
     "gethashespersec",
     "getinfo",
     "getnewaddress",
     "getaccountaddress",
     "getaccount",
     "getaddressesbyaccount",
     "backupwallet",
     "keypoolrefill",
     "walletpassphrase",
     "walletlock",
     "validateaddress",
     "getwork",
     "getmemorypool",
     "dumpblock",
 };
 set<string> setAllowInSafeMode(pAllowInSafeMode, pAllowInSafeMode + sizeof(pAllowInSafeMode)/sizeof(pAllowInSafeMode[0]));
 
 
 
 
 //
 // HTTP protocol
 //
 // This ain't Apache.  We're just using HTTP header for the length field
 // and to be compatible with other JSON-RPC implementations.
 //
 
 string HTTPPost(const string& strMsg, const map<string,string>& mapRequestHeaders)
 {
     ostringstream s;
     s << "POST / HTTP/1.1\r\n"
       << "User-Agent: bitcoin-json-rpc/" << FormatFullVersion() << "\r\n"
       << "Host: 127.0.0.1\r\n"
       << "Content-Type: application/json\r\n"
       << "Content-Length: " << strMsg.size() << "\r\n"
       << "Connection: close\r\n"
       << "Accept: application/json\r\n";
     BOOST_FOREACH(const PAIRTYPE(string, string)& item, mapRequestHeaders)
         s << item.first << ": " << item.second << "\r\n";
     s << "\r\n" << strMsg;
 
     return s.str();
 }
 
 string rfc1123Time()
 {
     char buffer[64];
     time_t now;
     time(&now);
     struct tm* now_gmt = gmtime(&now);
     string locale(setlocale(LC_TIME, NULL));
     setlocale(LC_TIME, "C"); // we want posix (aka "C") weekday/month strings
     strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S +0000", now_gmt);
     setlocale(LC_TIME, locale.c_str());
     return string(buffer);
 }
 
 static string HTTPReply(int nStatus, const string& strMsg)
 {
     if (nStatus == 401)
         return strprintf("HTTP/1.0 401 Authorization Required\r\n"
             "Date: %s\r\n"
             "Server: bitcoin-json-rpc/%s\r\n"
             "WWW-Authenticate: Basic realm=\"jsonrpc\"\r\n"
             "Content-Type: text/html\r\n"
             "Content-Length: 296\r\n"
             "\r\n"
             "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\r\n"
             "\"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd\">\r\n"
             "<HTML>\r\n"
             "<HEAD>\r\n"
             "<TITLE>Error</TITLE>\r\n"
             "<META HTTP-EQUIV='Content-Type' CONTENT='text/html; charset=ISO-8859-1'>\r\n"
             "</HEAD>\r\n"
             "<BODY><H1>401 Unauthorized.</H1></BODY>\r\n"
             "</HTML>\r\n", rfc1123Time().c_str(), FormatFullVersion().c_str());
     const char *cStatus;
          if (nStatus == 200) cStatus = "OK";
     else if (nStatus == 400) cStatus = "Bad Request";
     else if (nStatus == 403) cStatus = "Forbidden";
     else if (nStatus == 404) cStatus = "Not Found";
     else if (nStatus == 500) cStatus = "Internal Server Error";
     else cStatus = "";
     return strprintf(
             "HTTP/1.1 %d %s\r\n"
             "Date: %s\r\n"
             "Connection: close\r\n"
             "Content-Length: %d\r\n"
             "Content-Type: application/json\r\n"
             "Server: bitcoin-json-rpc/%s\r\n"
             "\r\n"
             "%s",
         nStatus,
         cStatus,
         rfc1123Time().c_str(),
         strMsg.size(),
         FormatFullVersion().c_str(),
         strMsg.c_str());
 }
 
 int ReadHTTPStatus(std::basic_istream<char>& stream)
 {
     string str;
     getline(stream, str);
     vector<string> vWords;
     boost::split(vWords, str, boost::is_any_of(" "));
     if (vWords.size() < 2)
         return 500;
     return atoi(vWords[1].c_str());
 }
 
 int ReadHTTPHeader(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet)
 {
     int nLen = 0;
     loop
     {
         string str;
         std::getline(stream, str);
         if (str.empty() || str == "\r")
             break;
         string::size_type nColon = str.find(":");
         if (nColon != string::npos)
         {
             string strHeader = str.substr(0, nColon);
             boost::trim(strHeader);
             boost::to_lower(strHeader);
             string strValue = str.substr(nColon+1);
             boost::trim(strValue);
             mapHeadersRet[strHeader] = strValue;
             if (strHeader == "content-length")
                 nLen = atoi(strValue.c_str());
         }
     }
     return nLen;
 }
 
 int ReadHTTP(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet, string& strMessageRet)
 {
     mapHeadersRet.clear();
     strMessageRet = "";
 
     // Read status
     int nStatus = ReadHTTPStatus(stream);
 
     // Read header
     int nLen = ReadHTTPHeader(stream, mapHeadersRet);
     if (nLen < 0 || nLen > MAX_SIZE)
         return 500;
 
     // Read message
     if (nLen > 0)
     {
         vector<char> vch(nLen);
         stream.read(&vch[0], nLen);
         strMessageRet = string(vch.begin(), vch.end());
     }
 
     return nStatus;
 }
 
 bool HTTPAuthorized(map<string, string>& mapHeaders)
 {
     string strAuth = mapHeaders["authorization"];
     if (strAuth.substr(0,6) != "Basic ")
         return false;
     string strUserPass64 = strAuth.substr(6); boost::trim(strUserPass64);
     string strUserPass = DecodeBase64(strUserPass64);
     return strUserPass == strRPCUserColonPass;
 }
 
 //
 // JSON-RPC protocol.  Bitcoin speaks version 1.0 for maximum compatibility,
 // but uses JSON-RPC 1.1/2.0 standards for parts of the 1.0 standard that were
 // unspecified (HTTP errors and contents of 'error').
 //
 // 1.0 spec: http://json-rpc.org/wiki/specification
 // 1.2 spec: http://groups.google.com/group/json-rpc/web/json-rpc-over-http
 // http://www.codeproject.com/KB/recipes/JSON_Spirit.aspx
 //
 
 string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
 {
     Object request;
     request.push_back(Pair("method", strMethod));
     request.push_back(Pair("params", params));
     request.push_back(Pair("id", id));
     return write_string(Value(request), false) + "\n";
 }
 
 string JSONRPCReply(const Value& result, const Value& error, const Value& id)
 {
     Object reply;
     if (error.type() != null_type)
         reply.push_back(Pair("result", Value::null));
     else
         reply.push_back(Pair("result", result));
     reply.push_back(Pair("error", error));
     reply.push_back(Pair("id", id));
     return write_string(Value(reply), false) + "\n";
 }
 
 void ErrorReply(std::ostream& stream, const Object& objError, const Value& id)
 {
     // Send error reply from json-rpc error object
     int nStatus = 500;
     int code = find_value(objError, "code").get_int();
     if (code == -32600) nStatus = 400;
     else if (code == -32601) nStatus = 404;
     string strReply = JSONRPCReply(Value::null, objError, id);
     stream << HTTPReply(nStatus, strReply) << std::flush;
 }
 
 bool ClientAllowed(const string& strAddress)
 {
     if (strAddress == asio::ip::address_v4::loopback().to_string())
         return true;
     const vector<string>& vAllow = mapMultiArgs["-rpcallowip"];
     BOOST_FOREACH(string strAllow, vAllow)
         if (WildcardMatch(strAddress, strAllow))
             return true;
     return false;
 }
 
 void ThreadRPCServer(void* parg)
 {
     IMPLEMENT_RANDOMIZE_STACK(ThreadRPCServer(parg));
     try
     {
         vnThreadsRunning[4]++;
         ThreadRPCServer2(parg);
         vnThreadsRunning[4]--;
     }
     catch (std::exception& e) {
         vnThreadsRunning[4]--;
         PrintException(&e, "ThreadRPCServer()");
     } catch (...) {
         vnThreadsRunning[4]--;
         PrintException(NULL, "ThreadRPCServer()");
     }
     printf("ThreadRPCServer exiting\n");
 }
 
 void ThreadRPCServer2(void* parg)
 {
     printf("ThreadRPCServer started\n");
 
     strRPCUserColonPass = mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"];
     if (strRPCUserColonPass == ":")
     {
         unsigned char rand_pwd[32];
         RAND_bytes(rand_pwd, 32);
         string strWhatAmI = "To use bitcoind";
         if (mapArgs.count("-server"))
             strWhatAmI = strprintf(_("To use the %s option"), "\"-server\"");
         else if (mapArgs.count("-daemon"))
             strWhatAmI = strprintf(_("To use the %s option"), "\"-daemon\"");
         PrintConsole(
             _("Error: %s, you must set a rpcpassword in the configuration file:\n %s\n"
               "It is recommended you use the following random password:\n"
               "rpcuser=bitcoinrpc\n"
               "rpcpassword=%s\n"
               "(you do not need to remember this password)\n"
               "If the file does not exist, create it with owner-readable-only file permissions.\n"),
                 strWhatAmI.c_str(),
                 GetConfigFile().c_str(),
                 EncodeBase58(&rand_pwd[0],&rand_pwd[0]+32).c_str());
         CreateThread(Shutdown, NULL);
         return;
     }
 
     asio::ip::address bindAddress = mapArgs.count("-rpcallowip") ? asio::ip::address_v4::any() : asio::ip::address_v4::loopback();
 
     asio::io_service io_service;
     ip::tcp::endpoint endpoint(bindAddress, GetArg("-rpcport", 8332));
     ip::tcp::acceptor acceptor(io_service, endpoint);
 
     acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 
     loop
     {
         // Accept connection
         ip::tcp::iostream stream;
 
         ip::tcp::endpoint peer;
         vnThreadsRunning[4]--;
         acceptor.accept(*stream.rdbuf(), peer);
         vnThreadsRunning[4]++;
         if (fShutdown)
             return;
 
         // Restrict callers by IP
         if (!ClientAllowed(peer.address().to_string()))
         {
         // snipsnipsnip
             // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
             //if (!fUseSSL)
             stream << HTTPReply(403, "") << std::flush;
             continue;
         }
 
         map<string, string> mapHeaders;
         string strRequest;
 
         boost::thread api_caller(ReadHTTP, boost::ref(stream), boost::ref(mapHeaders), boost::ref(strRequest));
         if (!api_caller.timed_join(boost::posix_time::seconds(GetArg("-rpctimeout", 30))))
         {   // Timed out:
             acceptor.cancel();
             printf("ThreadRPCServer ReadHTTP timeout\n");
             continue;
         }
 
         // Check authorization
         if (mapHeaders.count("authorization") == 0)
         {
             stream << HTTPReply(401, "") << std::flush;
             continue;
         }
         if (!HTTPAuthorized(mapHeaders))
         {
             printf("ThreadRPCServer incorrect password attempt from %s\n",peer.address().to_string().c_str());
             /* Deter brute-forcing short passwords.
                If this results in a DOS the user really
                shouldn't have their RPC port exposed.*/
             if (mapArgs["-rpcpassword"].size() < 20)
                 Sleep(250);
 
             stream << HTTPReply(401, "") << std::flush;
             continue;
         }
 
         Value id = Value::null;
         try
         {
             // Parse request
             Value valRequest;
             if (!read_string(strRequest, valRequest) || valRequest.type() != obj_type)
                 throw JSONRPCError(-32700, "Parse error");
             const Object& request = valRequest.get_obj();
 
             // Parse id now so errors from here on will have the id
             id = find_value(request, "id");
 
             // Parse method
             Value valMethod = find_value(request, "method");
             if (valMethod.type() == null_type)
                 throw JSONRPCError(-32600, "Missing method");
             if (valMethod.type() != str_type)
                 throw JSONRPCError(-32600, "Method must be a string");
             string strMethod = valMethod.get_str();
             if (strMethod != "getwork" && strMethod != "getmemorypool")
                 printf("ThreadRPCServer method=%s\n", strMethod.c_str());
 
             // Parse params
             Value valParams = find_value(request, "params");
             Array params;
             if (valParams.type() == array_type)
                 params = valParams.get_array();
             else if (valParams.type() == null_type)
                 params = Array();
             else
                 throw JSONRPCError(-32600, "Params must be an array");
 
             // Find method
             map<string, rpcfn_type>::iterator mi = mapCallTable.find(strMethod);
             if (mi == mapCallTable.end())
                 throw JSONRPCError(-32601, "Method not found");
 
             // Observe safe mode
             string strWarning = GetWarnings("rpc");
             if (strWarning != "" && !GetBoolArg("-disablesafemode") && !setAllowInSafeMode.count(strMethod))
                 throw JSONRPCError(-2, string("Safe mode: ") + strWarning);
 
             try
             {
                 // Execute
                 Value result;
                 CRITICAL_BLOCK(cs_main)
                 CRITICAL_BLOCK(pwalletMain->cs_wallet)
                     result = (*(*mi).second)(params, false);
 
                 // Send reply
                 string strReply = JSONRPCReply(result, Value::null, id);
                 stream << HTTPReply(200, strReply) << std::flush;
             }
             catch (std::exception& e)
             {
                 ErrorReply(stream, JSONRPCError(-1, e.what()), id);
             }
         }
         catch (Object& objError)
         {
             ErrorReply(stream, objError, id);
         }
         catch (std::exception& e)
         {
             ErrorReply(stream, JSONRPCError(-32700, e.what()), id);
         }
     }
 }
 
 
 
 
 Object CallRPC(const string& strMethod, const Array& params)
 {
     if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
         throw runtime_error(strprintf(
             _("You must set rpcpassword=<password> in the configuration file:\n%s\n"
               "If the file does not exist, create it with owner-readable-only file permissions."),
                 GetConfigFile().c_str()));
 
     // Connect to localhost
     ip::tcp::iostream stream(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", "8332"));
     if (stream.fail())
         throw runtime_error("couldn't connect to server");
 
     // HTTP basic authentication
     string strUserPass64 = EncodeBase64(mapArgs["-rpcuser"] + ":" + mapArgs["-rpcpassword"]);
     map<string, string> mapRequestHeaders;
     mapRequestHeaders["Authorization"] = string("Basic ") + strUserPass64;
 
     // Send request
     string strRequest = JSONRPCRequest(strMethod, params, 1);
     string strPost = HTTPPost(strRequest, mapRequestHeaders);
     stream << strPost << std::flush;
 
     // Receive reply
     map<string, string> mapHeaders;
     string strReply;
     int nStatus = ReadHTTP(stream, mapHeaders, strReply);
     if (nStatus == 401)
         throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)");
     else if (nStatus >= 400 && nStatus != 400 && nStatus != 404 && nStatus != 500)
         throw runtime_error(strprintf("server returned HTTP error %d", nStatus));
     else if (strReply.empty())
         throw runtime_error("no response from server");
 
     // Parse reply
     Value valReply;
     if (!read_string(strReply, valReply))
         throw runtime_error("couldn't parse reply from server");
     const Object& reply = valReply.get_obj();
     if (reply.empty())
         throw runtime_error("expected reply to have result, error and id properties");
 
     return reply;
 }
 
 
 
 
 template<typename T>
 void ConvertTo(Value& value)
 {
     if (value.type() == str_type)
     {
         // reinterpret string as unquoted json value
         Value value2;
         if (!read_string(value.get_str(), value2))
             throw runtime_error("type mismatch");
         value = value2.get_value<T>();
     }
     else
     {
         value = value.get_value<T>();
     }
 }
 
 int CommandLineRPC(int argc, char *argv[])
 {
     string strPrint;
     int nRet = 0;
     try
     {
         // Skip switches
         while (argc > 1 && IsSwitchChar(argv[1][0]))
         {
             argc--;
             argv++;
         }
 
         // Method
         if (argc < 2)
             throw runtime_error("too few parameters");
         string strMethod = argv[1];
 
         // Parameters default to strings
         Array params;
         for (int i = 2; i < argc; i++)
             params.push_back(argv[i]);
         int n = params.size();
 
         //
         // Special case non-string parameter types
         //
         if (strMethod == "setgenerate"            && n > 0) ConvertTo<bool>(params[0]);
         if (strMethod == "setgenerate"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);
         if (strMethod == "settxfee"               && n > 0) ConvertTo<double>(params[0]);
         if (strMethod == "getreceivedbyaddress"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "getreceivedbyaccount"   && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "listreceivedbyaddress"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
         if (strMethod == "listreceivedbyaddress"  && n > 1) ConvertTo<bool>(params[1]);
         if (strMethod == "listreceivedbyaccount"  && n > 0) ConvertTo<boost::int64_t>(params[0]);
         if (strMethod == "listreceivedbyaccount"  && n > 1) ConvertTo<bool>(params[1]);
         if (strMethod == "getbalance"             && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "move"                   && n > 2) ConvertTo<double>(params[2]);
         if (strMethod == "move"                   && n > 3) ConvertTo<boost::int64_t>(params[3]);
         if (strMethod == "sendfrom"               && n > 2) ConvertTo<double>(params[2]);
         if (strMethod == "sendfrom"               && n > 3) ConvertTo<boost::int64_t>(params[3]);
         if (strMethod == "listtransactions"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "listtransactions"       && n > 2) ConvertTo<boost::int64_t>(params[2]);
         if (strMethod == "listaccounts"           && n > 0) ConvertTo<boost::int64_t>(params[0]);
         if (strMethod == "walletpassphrase"       && n > 1) ConvertTo<boost::int64_t>(params[1]);
         if (strMethod == "listsinceblock"         && n > 1) ConvertTo<boost::int64_t>(params[1]);
     if (strMethod == "dumpblock"              && n > 0) ConvertTo<boost::int64_t>(params[0]);
         if (strMethod == "sendmany"               && n > 1)
         {
             string s = params[1].get_str();
             Value v;
             if (!read_string(s, v) || v.type() != obj_type)
                 throw runtime_error("type mismatch");
             params[1] = v.get_obj();
         }
         if (strMethod == "sendmany"                && n > 2) ConvertTo<boost::int64_t>(params[2]);
 
         // Execute
         Object reply = CallRPC(strMethod, params);
 
         // Parse reply
         const Value& result = find_value(reply, "result");
         const Value& error  = find_value(reply, "error");
 
         if (error.type() != null_type)
         {
             // Error
             strPrint = "error: " + write_string(error, false);
             int code = find_value(error.get_obj(), "code").get_int();
             nRet = abs(code);
         }
         else
         {
             // Result
             if (result.type() == null_type)
                 strPrint = "";
             else if (result.type() == str_type)
                 strPrint = result.get_str();
             else
                 strPrint = write_string(result, true);
         }
     }
     catch (std::exception& e)
     {
         strPrint = string("error: ") + e.what();
         nRet = 87;
     }
     catch (...)
     {
         PrintException(NULL, "CommandLineRPC()");
     }
 
     if (strPrint != "")
     {
         fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());
     }
     return nRet;
 }
 
 
 
 
 #ifdef TEST
 int main(int argc, char *argv[])
 {
     setbuf(stdin, NULL);
     setbuf(stdout, NULL);
     setbuf(stderr, NULL);
 
     try
     {
         if (argc >= 2 && string(argv[1]) == "-server")
         {
             printf("server ready\n");
             ThreadRPCServer(NULL);
         }
         else
         {
             return CommandLineRPC(argc, argv);
         }
     }
     catch (std::exception& e) {
         PrintException(&e, "main()");
     } catch (...) {
         PrintException(NULL, "main()");
     }
     return 0;
 }
 #endif