text: // Copyright (c) 2010 Satoshi Nakamoto
  // Copyright (c) 2009-2014 The Bitcoin developers
  // Copyright (c) 2014-2015 The Dash developers
  // Copyright (c) 2015-2017 The PIVX developers
  // Copyright (c) 2019 The Privix Developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "rpcserver.h"
  
  #include "base58.h"
  #include "init.h"
  #include "main.h"
  #include "random.h"
  #include "sync.h"
  #include "ui_interface.h"
  #include "util.h"
  #include "utilstrencodings.h"
  
  #include <boost/bind.hpp>
  #include <boost/filesystem.hpp>
  #include <boost/foreach.hpp>
  #include <boost/iostreams/concepts.hpp>
  #include <boost/iostreams/stream.hpp>
  #include <boost/shared_ptr.hpp>
  #include <boost/signals2/signal.hpp>
  #include <boost/thread.hpp>
  #include <boost/algorithm/string/case_conv.hpp> // for to_upper()
  
  #include <univalue.h>
  
  using namespace RPCServer;
  using namespace std;
  
  static bool fRPCRunning = false;
  static bool fRPCInWarmup = true;
  static std::string rpcWarmupStatus("RPC server started");
  static CCriticalSection cs_rpcWarmup;
  
  /* Timer-creating functions */
  static std::vector<RPCTimerInterface*> timerInterfaces;
  /* Map of name to timer.
   * @note Can be changed to std::unique_ptr when C++11 */
  static std::map<std::string, boost::shared_ptr<RPCTimerBase> > deadlineTimers;
  
  static struct CRPCSignals
  {
      boost::signals2::signal<void ()> Started;
      boost::signals2::signal<void ()> Stopped;
      boost::signals2::signal<void (const CRPCCommand&)> PreCommand;
      boost::signals2::signal<void (const CRPCCommand&)> PostCommand;
  } g_rpcSignals;
  
  void RPCServer::OnStarted(boost::function<void ()> slot)
  {
      g_rpcSignals.Started.connect(slot);
  }
  
  void RPCServer::OnStopped(boost::function<void ()> slot)
  {
      g_rpcSignals.Stopped.connect(slot);
  }
  
  void RPCServer::OnPreCommand(boost::function<void (const CRPCCommand&)> slot)
  {
      g_rpcSignals.PreCommand.connect(boost::bind(slot, _1));
  }
  
  void RPCServer::OnPostCommand(boost::function<void (const CRPCCommand&)> slot)
  {
      g_rpcSignals.PostCommand.connect(boost::bind(slot, _1));
  }
  
  void RPCTypeCheck(const UniValue& params,
                    const list<UniValue::VType>& typesExpected,
                    bool fAllowNull)
  {
      unsigned int i = 0;
      BOOST_FOREACH(UniValue::VType t, typesExpected) {
          if (params.size() <= i)
              break;
  
          const UniValue& v = params[i];
          if (!((v.type() == t) || (fAllowNull && (v.isNull())))) {
              string err = strprintf("Expected type %s, got %s",
                                     uvTypeName(t), uvTypeName(v.type()));
              throw JSONRPCError(RPC_TYPE_ERROR, err);
          }
          i++;
      }
  }
  
  void RPCTypeCheckObj(const UniValue& o,
                    const map<string, UniValue::VType>& typesExpected,
                    bool fAllowNull)
  {
      BOOST_FOREACH(const PAIRTYPE(string, UniValue::VType)& t, typesExpected) {
          const UniValue& v = find_value(o, t.first);
          if (!fAllowNull && v.isNull())
              throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing %s", t.first));
  
          if (!((v.type() == t.second) || (fAllowNull && (v.isNull())))) {
              string err = strprintf("Expected type %s for %s, got %s",
                                     uvTypeName(t.second), t.first, uvTypeName(v.type()));
              throw JSONRPCError(RPC_TYPE_ERROR, err);
          }
      }
  }
  
  static inline int64_t roundint64(double d)
  {
      return (int64_t)(d > 0 ? d + 0.5 : d - 0.5);
  }
  
  CAmount AmountFromValue(const UniValue& value)
  {
      if (!value.isNum() && !value.isStr())
          throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string");
      CAmount amount;
      if (!ParseFixedPoint(value.getValStr(), 8, &amount))
          throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
      if (!MoneyRange(amount))
          throw JSONRPCError(RPC_TYPE_ERROR, "Amount out of range");
      return amount;
  }
  
  UniValue ValueFromAmount(const CAmount& amount)
  {
      bool sign = amount < 0;
      int64_t n_abs = (sign ? -amount : amount);
      int64_t quotient = n_abs / COIN;
      int64_t remainder = n_abs % COIN;
      return UniValue(UniValue::VNUM,
              strprintf("%s%d.%08d", sign ? "-" : "", quotient, remainder));
  }
  
  uint256 ParseHashV(const UniValue& v, string strName)
  {
      string strHex;
      if (v.isStr())
          strHex = v.get_str();
      if (!IsHex(strHex)) // Note: IsHex("") is false
          throw JSONRPCError(RPC_INVALID_PARAMETER, strName + " must be hexadecimal string (not '" + strHex + "')");
      uint256 result;
      result.SetHex(strHex);
      return result;
  }
  uint256 ParseHashO(const UniValue& o, string strKey)
  {
      return ParseHashV(find_value(o, strKey), strKey);
  }
  vector<unsigned char> ParseHexV(const UniValue& v, string strName)
  {
      string strHex;
      if (v.isStr())
          strHex = v.get_str();
      if (!IsHex(strHex))
          throw JSONRPCError(RPC_INVALID_PARAMETER, strName + " must be hexadecimal string (not '" + strHex + "')");
      return ParseHex(strHex);
  }
  vector<unsigned char> ParseHexO(const UniValue& o, string strKey)
  {
      return ParseHexV(find_value(o, strKey), strKey);
  }
  
  int ParseInt(const UniValue& o, string strKey)
  {
      const UniValue& v = find_value(o, strKey);
      if (v.isNum())
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, " + strKey + "is not an int");
  
      return v.get_int();
  }
  
  bool ParseBool(const UniValue& o, string strKey)
  {
      const UniValue& v = find_value(o, strKey);
      if (v.isBool())
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, " + strKey + "is not a bool");
  
      return v.get_bool();
  }
  
  
  /**
   * Note: This interface may still be subject to change.
   */
  
  string CRPCTable::help(string strCommand) const
  {
      string strRet;
      string category;
      set<rpcfn_type> setDone;
      vector<pair<string, const CRPCCommand*> > vCommands;
  
      for (map<string, const CRPCCommand*>::const_iterator mi = mapCommands.begin(); mi != mapCommands.end(); ++mi)
          vCommands.push_back(make_pair(mi->second->category + mi->first, mi->second));
      sort(vCommands.begin(), vCommands.end());
  
      BOOST_FOREACH (const PAIRTYPE(string, const CRPCCommand*) & command, vCommands) {
          const CRPCCommand* pcmd = command.second;
          string strMethod = pcmd->name;
          // We already filter duplicates, but these deprecated screw up the sort order
          if (strMethod.find("label") != string::npos)
              continue;
          if ((strCommand != "" || pcmd->category == "hidden") && strMethod != strCommand)
              continue;
  #ifdef ENABLE_WALLET
          if (pcmd->reqWallet && !pwalletMain)
              continue;
  #endif
  
          try {
              UniValue params;
              rpcfn_type pfn = pcmd->actor;
              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') != string::npos)
                      strHelp = strHelp.substr(0, strHelp.find('\n'));
  
                  if (category != pcmd->category) {
                      if (!category.empty())
                          strRet += "\n";
                      category = pcmd->category;
                      string firstLetter = category.substr(0, 1);
                      boost::to_upper(firstLetter);
                      strRet += "== " + firstLetter + category.substr(1) + " ==\n";
                  }
              }
              strRet += strHelp + "\n";
          }
      }
      if (strRet == "")
          strRet = strprintf("help: unknown command: %s\n", strCommand);
      strRet = strRet.substr(0, strRet.size() - 1);
      return strRet;
  }
  
  UniValue help(const UniValue& params, bool fHelp)
  {
      if (fHelp || params.size() > 1)
          throw runtime_error(
              "help ( \"command\" )\n"
              "\nList all commands, or get help for a specified command.\n"
              "\nArguments:\n"
              "1. \"command\"     (string, optional) The command to get help on\n"
              "\nResult:\n"
              "\"text\"     (string) The help text\n");
  
      string strCommand;
      if (params.size() > 0)
          strCommand = params[0].get_str();
  
      return tableRPC.help(strCommand);
  }
  
  
  UniValue stop(const UniValue& params, bool fHelp)
  {
      // Accept the deprecated and ignored 'detach' boolean argument
      if (fHelp || params.size() > 1)
          throw runtime_error(
              "stop\n"
              "\nStop Privix server.");
      // Shutdown will take long enough that the response should get back
      StartShutdown();
      return "Privix server stopping";
  }
  
  
  /**
   * Call Table
   */
  static const CRPCCommand vRPCCommands[] =
      {
          //  category              name                      actor (function)         okSafeMode threadSafe reqWallet
          //  --------------------- ------------------------  -----------------------  ---------- ---------- ---------
          /* Overall control/query calls */
          {"control", "getinfo", &getinfo, true, false, false}, /* uses wallet if enabled */
          {"control", "help", &help, true, true, false},
          {"control", "stop", &stop, true, true, false},
  
          /* P2P networking */
          {"network", "getnetworkinfo", &getnetworkinfo, true, false, false},
          {"network", "addnode", &addnode, true, true, false},
          {"network", "disconnectnode", &disconnectnode, true, true, false},
          {"network", "getaddednodeinfo", &getaddednodeinfo, true, true, false},
          {"network", "getconnectioncount", &getconnectioncount, true, false, false},
          {"network", "getnettotals", &getnettotals, true, true, false},
          {"network", "getpeerinfo", &getpeerinfo, true, false, false},
          {"network", "ping", &ping, true, false, false},
          {"network", "setban", &setban, true, false, false},
          {"network", "listbanned", &listbanned, true, false, false},
          {"network", "clearbanned", &clearbanned, true, false, false},
  
          /* Block chain and UTXO */
          {"blockchain", "findserial", &findserial, true, false, false},
          {"blockchain", "getblockchaininfo", &getblockchaininfo, true, false, false},
          {"blockchain", "getbestblockhash", &getbestblockhash, true, false, false},
          {"blockchain", "getblockcount", &getblockcount, true, false, false},
          {"blockchain", "getblock", &getblock, true, false, false},
          {"blockchain", "getblockhash", &getblockhash, true, false, false},
          {"blockchain", "getblockheader", &getblockheader, false, false, false},
          {"blockchain", "getchaintips", &getchaintips, true, false, false},
          {"blockchain", "getdifficulty", &getdifficulty, true, false, false},
          {"blockchain", "getmempoolinfo", &getmempoolinfo, true, true, false},
          {"blockchain", "getrawmempool", &getrawmempool, true, false, false},
          {"blockchain", "gettxout", &gettxout, true, false, false},
          {"blockchain", "gettxoutsetinfo", &gettxoutsetinfo, true, false, false},
          {"blockchain", "invalidateblock", &invalidateblock, true, true, false},
          {"blockchain", "reconsiderblock", &reconsiderblock, true, true, false},
          {"blockchain", "verifychain", &verifychain, true, false, false},
  
          /* Mining */
          {"mining", "getblocktemplate", &getblocktemplate, true, false, false},
          {"mining", "getmininginfo", &getmininginfo, true, false, false},
          {"mining", "getnetworkhashps", &getnetworkhashps, true, false, false},
          {"mining", "prioritisetransaction", &prioritisetransaction, true, false, false},
          {"mining", "submitblock", &submitblock, true, true, false},
          {"mining", "reservebalance", &reservebalance, true, true, false},
  
  #ifdef ENABLE_WALLET
          /* Coin generation */
          {"generating", "getgenerate", &getgenerate, true, false, false},
          {"generating", "gethashespersec", &gethashespersec, true, false, false},
          {"generating", "setgenerate", &setgenerate, true, true, false},
  #endif
  
          /* Raw transactions */
          {"rawtransactions", "createrawtransaction", &createrawtransaction, true, false, false},
          {"rawtransactions", "decoderawtransaction", &decoderawtransaction, true, false, false},
          {"rawtransactions", "decodescript", &decodescript, true, false, false},
          {"rawtransactions", "getrawtransaction", &getrawtransaction, true, false, false},
          {"rawtransactions", "searchrawtransactions", &searchrawtransactions, true, false, false},
          {"rawtransactions", "sendrawtransaction", &sendrawtransaction, false, false, false},
          {"rawtransactions", "signrawtransaction", &signrawtransaction, false, false, false}, /* uses wallet if enabled */
  
          /* Utility functions */
          {"util", "createmultisig", &createmultisig, true, true, false},
          {"util", "createwitnessaddress", &createwitnessaddress, true, true, false},
          {"util", "validateaddress", &validateaddress, true, false, false}, /* uses wallet if enabled */
          {"util", "verifymessage", &verifymessage, true, false, false},
          {"util", "estimatefee", &estimatefee, true, true, false},
          {"util", "estimatepriority", &estimatepriority, true, true, false},
  
          /* Not shown in help */
          {"hidden", "invalidateblock", &invalidateblock, true, true, false},
          {"hidden", "reconsiderblock", &reconsiderblock, true, true, false},
          {"hidden", "setmocktime", &setmocktime, true, false, false},
  
          /* Privix features */
          {"privix", "masternode", &masternode, true, true, false},
          {"privix", "listmasternodes", &listmasternodes, true, true, false},
          {"privix", "createmasternodebroadcast", &createmasternodebroadcast, true, true, false},
          {"privix", "decodemasternodebroadcast", &decodemasternodebroadcast, true, true, false},
          {"privix", "relaymasternodebroadcast", &relaymasternodebroadcast, true, true, false},
          {"privix", "getmasternodecount", &getmasternodecount, true, true, false},
          {"privix", "masternodeconnect", &masternodeconnect, true, true, false},
          {"privix", "masternodecurrent", &masternodecurrent, true, true, false},
          {"privix", "masternodedebug", &masternodedebug, true, true, false},
          {"privix", "startmasternode", &startmasternode, true, true, false},
          {"privix", "createmasternodekey", &createmasternodekey, true, true, false},
          {"privix", "getmasternodeoutputs", &getmasternodeoutputs, true, true, false},
          {"privix", "listmasternodeconf", &listmasternodeconf, true, true, false},
          {"privix", "getmasternodestatus", &getmasternodestatus, true, true, false},
          {"privix", "getmasternodewinners", &getmasternodewinners, true, true, false},
          {"privix", "getmasternodescores", &getmasternodescores, true, true, false},
          {"privix", "mnbudget", &mnbudget, true, true, false},
          {"privix", "preparebudget", &preparebudget, true, true, false},
          {"privix", "submitbudget", &submitbudget, true, true, false},
          {"privix", "mnbudgetvote", &mnbudgetvote, true, true, false},
          {"privix", "getbudgetvotes", &getbudgetvotes, true, true, false},
          {"privix", "getnextsuperblock", &getnextsuperblock, true, true, false},
          {"privix", "getbudgetprojection", &getbudgetprojection, true, true, false},
          {"privix", "getbudgetinfo", &getbudgetinfo, true, true, false},
          {"privix", "mnbudgetrawvote", &mnbudgetrawvote, true, true, false},
          {"privix", "mnfinalbudget", &mnfinalbudget, true, true, false},
          {"privix", "checkbudgets", &checkbudgets, true, true, false},
          {"privix", "mnsync", &mnsync, true, true, false},
          {"privix", "spork", &spork, true, true, false},
          {"privix", "getpoolinfo", &getpoolinfo, true, true, false},
          {"privix", "makekeypair", &makekeypair, true, true, false},
  #ifdef ENABLE_WALLET
          /* Wallet */
          {"wallet", "addmultisigaddress", &addmultisigaddress, true, false, true},
          {"wallet", "addwitnessaddress", &addwitnessaddress, true, false, true},
          {"wallet", "autocombinerewards", &autocombinerewards, false, false, true},
          {"wallet", "backupwallet", &backupwallet, true, false, true},
          {"wallet", "dumpprivkey", &dumpprivkey, true, false, true},
          {"wallet", "dumpwallet", &dumpwallet, true, false, true},
          {"wallet", "dumpallprivatekeys", &dumpallprivatekeys, true, false, true},
          {"wallet", "bip38encrypt", &bip38encrypt, true, false, true},
          {"wallet", "bip38decrypt", &bip38decrypt, true, false, true},
          {"wallet", "encryptwallet", &encryptwallet, true, false, true},
          {"wallet", "getaccountaddress", &getaccountaddress, true, false, true},
          {"wallet", "getaccount", &getaccount, true, false, true},
          {"wallet", "getaddressesbyaccount", &getaddressesbyaccount, true, false, true},
          {"wallet", "getbalance", &getbalance, false, false, true},
          {"wallet", "getnewaddress", &getnewaddress, true, false, true},
          {"wallet", "getrawchangeaddress", &getrawchangeaddress, true, false, true},
          {"wallet", "getreceivedbyaccount", &getreceivedbyaccount, false, false, true},
          {"wallet", "getreceivedbyaddress", &getreceivedbyaddress, false, false, true},
          {"wallet", "getstakingstatus", &getstakingstatus, false, false, true},
          {"wallet", "getstakesplitthreshold", &getstakesplitthreshold, false, false, true},
          {"wallet", "gettransaction", &gettransaction, false, false, true},
          {"wallet", "getunconfirmedbalance", &getunconfirmedbalance, false, false, true},
          {"wallet", "getwalletinfo", &getwalletinfo, false, false, true},
          {"wallet", "importprivkey", &importprivkey, true, false, true},
          {"wallet", "importpubkey", &importpubkey, true, false, true},
          {"wallet", "importwallet", &importwallet, true, false, true},
          {"wallet", "importaddress", &importaddress, true, false, true},
          {"wallet", "keypoolrefill", &keypoolrefill, true, false, true},
          {"wallet", "listaccounts", &listaccounts, false, false, true},
          {"wallet", "listaddressgroupings", &listaddressgroupings, false, false, true},
          {"wallet", "listlockunspent", &listlockunspent, false, false, true},
          {"wallet", "listreceivedbyaccount", &listreceivedbyaccount, false, false, true},
          {"wallet", "listreceivedbyaddress", &listreceivedbyaddress, false, false, true},
          {"wallet", "listsinceblock", &listsinceblock, false, false, true},
          {"wallet", "listtransactions", &listtransactions, false, false, true},
          {"wallet", "listunspent", &listunspent, false, false, true},
          {"wallet", "lockunspent", &lockunspent, true, false, true},
          {"wallet", "move", &movecmd, false, false, true},
          {"wallet", "multisend", &multisend, false, false, true},
          {"wallet", "sendfrom", &sendfrom, false, false, true},
          {"wallet", "sendmany", &sendmany, false, false, true},
          {"wallet", "sendtoaddress", &sendtoaddress, false, false, true},
          {"wallet", "sendtoaddressix", &sendtoaddressix, false, false, true},
          {"wallet", "setaccount", &setaccount, true, false, true},
          {"wallet", "setstakesplitthreshold", &setstakesplitthreshold, false, false, true},
          {"wallet", "settxfee", &settxfee, true, false, true},
          {"wallet", "signmessage", &signmessage, true, false, true},
          {"wallet", "walletlock", &walletlock, true, false, true},
          {"wallet", "walletpassphrasechange", &walletpassphrasechange, true, false, true},
          {"wallet", "walletpassphrase", &walletpassphrase, true, false, true},
  
          {"zerocoin", "getzerocoinbalance", &getzerocoinbalance, false, false, true},
          {"zerocoin", "listmintedzerocoins", &listmintedzerocoins, false, false, true},
          {"zerocoin", "listspentzerocoins", &listspentzerocoins, false, false, true},
          {"zerocoin", "listzerocoinamounts", &listzerocoinamounts, false, false, true},
          {"zerocoin", "mintzerocoin", &mintzerocoin, false, false, true},
          {"zerocoin", "spendzerocoin", &spendzerocoin, false, false, true},
          {"zerocoin", "resetmintzerocoin", &resetmintzerocoin, false, false, true},
          {"zerocoin", "resetspentzerocoin", &resetspentzerocoin, false, false, true},
          {"zerocoin", "getarchivedzerocoin", &getarchivedzerocoin, false, false, true},
          {"zerocoin", "importzerocoins", &importzerocoins, false, false, true},
          {"zerocoin", "exportzerocoins", &exportzerocoins, false, false, true},
          {"zerocoin", "reconsiderzerocoins", &reconsiderzerocoins, false, false, true},
          {"zerocoin", "getspentzerocoinamount", &getspentzerocoinamount, false, false, false},
          {"zerocoin", "getzvpxseed", &getzvpxseed, false, false, true},
          {"zerocoin", "setzvpxseed", &setzvpxseed, false, false, true}
  
  #endif // ENABLE_WALLET
  };
  
  CRPCTable::CRPCTable()
  {
      unsigned int vcidx;
      for (vcidx = 0; vcidx < (sizeof(vRPCCommands) / sizeof(vRPCCommands[0])); vcidx++) {
          const CRPCCommand* pcmd;
  
          pcmd = &vRPCCommands[vcidx];
          mapCommands[pcmd->name] = pcmd;
      }
  }
  
  const CRPCCommand *CRPCTable::operator[](const std::string &name) const
  {
      map<string, const CRPCCommand*>::const_iterator it = mapCommands.find(name);
      if (it == mapCommands.end())
          return NULL;
      return (*it).second;
  }
  
  bool StartRPC()
  {
      LogPrint("rpc", "Starting RPC\n");
      fRPCRunning = true;
      g_rpcSignals.Started();
      return true;
  }
  
  void InterruptRPC()
  {
      LogPrint("rpc", "Interrupting RPC\n");
      // Interrupt e.g. running longpolls
      fRPCRunning = false;
  }
  
  void StopRPC()
  {
      LogPrint("rpc", "Stopping RPC\n");
      deadlineTimers.clear();
      g_rpcSignals.Stopped();
  }
  
  bool IsRPCRunning()
  {
      return fRPCRunning;
  }
  
  void SetRPCWarmupStatus(const std::string& newStatus)
  {
      LOCK(cs_rpcWarmup);
      rpcWarmupStatus = newStatus;
  }
  
  void SetRPCWarmupFinished()
  {
      LOCK(cs_rpcWarmup);
      assert(fRPCInWarmup);
      fRPCInWarmup = false;
  }
  
  bool RPCIsInWarmup(std::string* outStatus)
  {
      LOCK(cs_rpcWarmup);
      if (outStatus)
          *outStatus = rpcWarmupStatus;
      return fRPCInWarmup;
  }
  
  void JSONRequest::parse(const UniValue& valRequest)
  {
      // Parse request
      if (!valRequest.isObject())
          throw JSONRPCError(RPC_INVALID_REQUEST, "Invalid Request object");
      const UniValue& request = valRequest.get_obj();
  
      // Parse id now so errors from here on will have the id
      id = find_value(request, "id");
  
      // Parse method
      UniValue valMethod = find_value(request, "method");
      if (valMethod.isNull())
          throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method");
      if (!valMethod.isStr())
          throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string");
      strMethod = valMethod.get_str();
      if (strMethod != "getblocktemplate")
          LogPrint("rpc", "ThreadRPCServer method=%s\n", SanitizeString(strMethod));
  
      // Parse params
      UniValue valParams = find_value(request, "params");
      if (valParams.isArray())
          params = valParams.get_array();
      else if (valParams.isNull())
          params = UniValue(UniValue::VARR);
      else
          throw JSONRPCError(RPC_INVALID_REQUEST, "Params must be an array");
  }
  
  
  static UniValue JSONRPCExecOne(const UniValue& req)
  {
      UniValue rpc_result(UniValue::VOBJ);
  
      JSONRequest jreq;
      try {
          jreq.parse(req);
  
          UniValue result = tableRPC.execute(jreq.strMethod, jreq.params);
          rpc_result = JSONRPCReplyObj(result, NullUniValue, jreq.id);
      } catch (const UniValue& objError) {
          rpc_result = JSONRPCReplyObj(NullUniValue, objError, jreq.id);
      } catch (std::exception& e) {
          rpc_result = JSONRPCReplyObj(NullUniValue,
              JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
      }
  
      return rpc_result;
  }
  
  std::string JSONRPCExecBatch(const UniValue& vReq)
  {
      UniValue ret(UniValue::VARR);
      for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++)
          ret.push_back(JSONRPCExecOne(vReq[reqIdx]));
  
      return ret.write() + "\n";
  }
  
  UniValue CRPCTable::execute(const std::string &strMethod, const UniValue &params) const
  {
      // Find method
      const CRPCCommand* pcmd = tableRPC[strMethod];
      if (!pcmd)
          throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
  
      g_rpcSignals.PreCommand(*pcmd);
  
      try {
          // Execute
          return pcmd->actor(params, false);
      } catch (std::exception& e) {
          throw JSONRPCError(RPC_MISC_ERROR, e.what());
      }
  
      g_rpcSignals.PostCommand(*pcmd);
  }
  
  std::vector<std::string> CRPCTable::listCommands() const
  {
      std::vector<std::string> commandList;
      typedef std::map<std::string, const CRPCCommand*> commandMap;
  
      std::transform( mapCommands.begin(), mapCommands.end(),
                     std::back_inserter(commandList),
                     boost::bind(&commandMap::value_type::first,_1) );
      return commandList;
  }
  
  std::string HelpExampleCli(string methodname, string args)
  {
      return "> privix-cli " + methodname + " " + args + "\n";
  }
  
  std::string HelpExampleRpc(string methodname, string args)
  {
      return "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\":\"curltest\", "
             "\"method\": \"" +
             methodname + "\", \"params\": [" + args + "] }' -H 'content-type: text/plain;' http://127.0.0.1:7789/\n";
  }
  
  void RPCRegisterTimerInterface(RPCTimerInterface *iface)
  {
      timerInterfaces.push_back(iface);
  }
  
  void RPCUnregisterTimerInterface(RPCTimerInterface *iface)
  {
      std::vector<RPCTimerInterface*>::iterator i = std::find(timerInterfaces.begin(), timerInterfaces.end(), iface);
      assert(i != timerInterfaces.end());
      timerInterfaces.erase(i);
  }
  
  void RPCRunLater(const std::string& name, boost::function<void(void)> func, int64_t nSeconds)
  {
      if (timerInterfaces.empty())
          throw JSONRPCError(RPC_INTERNAL_ERROR, "No timer handler registered for RPC");
      deadlineTimers.erase(name);
      RPCTimerInterface* timerInterface = timerInterfaces[0];
      LogPrint("rpc", "queue run of timer %s in %i seconds (using %s)\n", name, nSeconds, timerInterface->Name());
      deadlineTimers.insert(std::make_pair(name, boost::shared_ptr<RPCTimerBase>(timerInterface->NewTimer(func, nSeconds*1000))));
  }
  
  const CRPCTable tableRPC;
  