text: // Copyright (c) 2010 Satoshi Nakamoto
  // Copyright (c) 2009-2012 The Bitcoin developers
  // Distributed under the MIT/X11 software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "rpcserver.h"
  #include "chainparams.h"
  #include "main.h"
  #include "db.h"
  #include "txdb.h"
  #include "init.h"
  #include "miner.h"
  #include "kernel.h"
  
  #include <boost/assign/list_of.hpp>
  
  using namespace json_spirit;
  using namespace std;
  using namespace boost::assign;
  
  // Key used by getwork/getblocktemplate miners.
  // Allocated in InitRPCMining, free'd in ShutdownRPCMining
  static CReserveKey* pMiningKey = NULL;
  
  void InitRPCMining()
  {
      if (!pwalletMain)
          return;
  
      // getwork/getblocktemplate mining rewards paid here:
      pMiningKey = new CReserveKey(pwalletMain);
  }
  
  void ShutdownRPCMining()
  {
      if (!pMiningKey)
          return;
  
      delete pMiningKey; pMiningKey = NULL;
  }
  
  Value getgenerate(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() != 0)
          throw runtime_error(
              "getgenerate\n"
              "Returns true or false.");
  
      return GetBoolArg("-gen", false);
  }
  
  
  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();
  
      int nGenProcLimit = 1;
      if (params.size() > 1)
      {
          nGenProcLimit = params[1].get_int();
          mapArgs["-genproclimit"] = itostr(nGenProcLimit);
          if (nGenProcLimit == 0)
              fGenerate = false;
      }
      mapArgs["-gen"] = (fGenerate ? "1" : "0");
  
      GenerateBitcoins(fGenerate, pwalletMain, nGenProcLimit);
      return Value::null;
  }
  
  Value getsubsidy(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() > 1)
          throw runtime_error(
              "getsubsidy [nTarget]\n"
              "Returns proof-of-work subsidy value for the specified value of target.");
  
      return (uint64_t)GetProofOfWorkReward(0, pindexBest->nHeight);
  }
  
  Value getstakesubsidy(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() != 1)
          throw runtime_error(
              "getstakesubsidy <hex string>\n"
              "Returns proof-of-stake subsidy value for the specified coinstake.");
  
      RPCTypeCheck(params, list_of(str_type));
  
      vector<unsigned char> txData(ParseHex(params[0].get_str()));
      CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
      CTransaction tx;
      try {
          ssData >> tx;
      }
      catch (std::exception &e) {
          throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
      }
  
      uint64_t nCoinAge;
      CTxDB txdb("r");
      if (!tx.GetCoinAge(txdb, pindexBest, nCoinAge))
          throw JSONRPCError(RPC_MISC_ERROR, "GetCoinAge failed");
  
      return (uint64_t)GetProofOfStakeReward(nCoinAge, 0, pindexBest->nHeight + 1);
  }
  
  Value getmininginfo(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() != 0)
          throw runtime_error(
              "getmininginfo\n"
              "Returns an object containing mining-related information.");
  
      uint64_t nWeight = 0;
      if (pwalletMain)
          nWeight = pwalletMain->GetStakeWeight();
  
      Object obj, diff, weight;
      obj.push_back(Pair("blocks",        (int)nBestHeight));
      obj.push_back(Pair("currentblocksize",(uint64_t)nLastBlockSize));
      obj.push_back(Pair("currentblocktx",(uint64_t)nLastBlockTx));
  
      diff.push_back(Pair("proof-of-work",        GetDifficulty()));
      diff.push_back(Pair("proof-of-stake",       GetDifficulty(GetLastBlockIndex(pindexBest, true))));
      diff.push_back(Pair("search-interval",      (int)nLastCoinStakeSearchInterval));
      obj.push_back(Pair("difficulty",    diff));
  
      obj.push_back(Pair("blockvalue",    (uint64_t)GetProofOfWorkReward(0, pindexBest->nHeight)));
      obj.push_back(Pair("netmhashps",     GetPoWMHashPS()));
      obj.push_back(Pair("netstakeweight", GetPoSKernelPS()));
      obj.push_back(Pair("errors",        GetWarnings("statusbar")));
      obj.push_back(Pair("pooledtx",      (uint64_t)mempool.size()));
  
      weight.push_back(Pair("minimum",    (uint64_t)nWeight));
      weight.push_back(Pair("maximum",    (uint64_t)0));
      weight.push_back(Pair("combined",  (uint64_t)nWeight));
      obj.push_back(Pair("stakeweight", weight));
  
      obj.push_back(Pair("testnet",       TestNet()));
      return obj;
  }
  
  Value getstakinginfo(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() != 0)
          throw runtime_error(
              "getstakinginfo\n"
              "Returns an object containing staking-related information.");
  
      uint64_t nWeight = 0;
      if (pwalletMain)
          nWeight = pwalletMain->GetStakeWeight();
  
      uint64_t nNetworkWeight = GetPoSKernelPS();
      bool staking = nLastCoinStakeSearchInterval && nWeight;
      uint64_t nExpectedTime = staking ? (GetTargetSpacing(nBestHeight) * nNetworkWeight / nWeight) : 0;
  
      Object obj;
  
      obj.push_back(Pair("enabled", GetBoolArg("-staking", true)));
      obj.push_back(Pair("staking", staking));
      obj.push_back(Pair("errors", GetWarnings("statusbar")));
  
      obj.push_back(Pair("currentblocksize", (uint64_t)nLastBlockSize));
      obj.push_back(Pair("currentblocktx", (uint64_t)nLastBlockTx));
      obj.push_back(Pair("pooledtx", (uint64_t)mempool.size()));
  
      obj.push_back(Pair("difficulty", GetDifficulty(GetLastBlockIndex(pindexBest, true))));
      obj.push_back(Pair("search-interval", (int)nLastCoinStakeSearchInterval));
  
      obj.push_back(Pair("weight", (uint64_t)nWeight));
      obj.push_back(Pair("netstakeweight", (uint64_t)nNetworkWeight));
  
      obj.push_back(Pair("expectedtime", nExpectedTime));
  
      return obj;
  }
  
  Value checkkernel(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() < 1 || params.size() > 2)
          throw runtime_error(
              "checkkernel [{\"txid\":txid,\"vout\":n},...] [createblocktemplate=false]\n"
              "Check if one of given inputs is a kernel input at the moment.\n"
          );
  
      RPCTypeCheck(params, list_of(array_type)(bool_type));
  
      Array inputs = params[0].get_array();
      bool fCreateBlockTemplate = params.size() > 1 ? params[1].get_bool() : false;
  
      if (vNodes.empty())
          throw JSONRPCError(-9, "BlakeStar is not connected!");
  
      if (IsInitialBlockDownload())
          throw JSONRPCError(-10, "BlakeStar is downloading blocks...");
  
      COutPoint kernel;
      CBlockIndex* pindexPrev = pindexBest;
      unsigned int nBits = GetNextTargetRequired(pindexPrev, true);
      int64_t nTime = GetAdjustedTime();
      nTime &= ~STAKE_TIMESTAMP_MASK;
  
      BOOST_FOREACH(Value& input, inputs)
      {
          const Object& o = input.get_obj();
  
          const Value& txid_v = find_value(o, "txid");
          if (txid_v.type() != str_type)
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing txid key");
          string txid = txid_v.get_str();
          if (!IsHex(txid))
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
  
          const Value& vout_v = find_value(o, "vout");
          if (vout_v.type() != int_type)
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing vout key");
          int nOutput = vout_v.get_int();
          if (nOutput < 0)
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout must be positive");
  
          COutPoint cInput(uint256(txid), nOutput);
          if (CheckKernel(pindexPrev, nBits, nTime, cInput))
          {
              kernel = cInput;
              break;
          }
      }
  
      Object result;
      result.push_back(Pair("found", !kernel.IsNull()));
  
      if (kernel.IsNull())
          return result;
  
      Object oKernel;
      oKernel.push_back(Pair("txid", kernel.hash.GetHex()));
      oKernel.push_back(Pair("vout", (int64_t)kernel.n));
      oKernel.push_back(Pair("time", nTime));
      result.push_back(Pair("kernel", oKernel));
  
      if (!fCreateBlockTemplate)
          return result;
  
      int64_t nFees;
      auto_ptr<CBlock> pblock(CreateNewBlock(*pMiningKey, true, &nFees));
  
      pblock->nTime = pblock->vtx[0].nTime = nTime;
  
      CDataStream ss(SER_DISK, PROTOCOL_VERSION);
      ss << *pblock;
  
      result.push_back(Pair("blocktemplate", HexStr(ss.begin(), ss.end())));
      result.push_back(Pair("blocktemplatefees", nFees));
  
      CPubKey pubkey;
      if (!pMiningKey->GetReservedKey(pubkey))
          throw JSONRPCError(RPC_MISC_ERROR, "GetReservedKey failed");
  
      result.push_back(Pair("blocktemplatesignkey", HexStr(pubkey)));
  
      return result;
  }
  
  Value getworkex(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() > 2)
          throw runtime_error(
              "getworkex [data, coinbase]\n"
              "If [data, coinbase] is not specified, returns extended work data.\n"
          );
  
      if (vNodes.empty())
          throw JSONRPCError(-9, "BlakeStar is not connected!");
  
      //if (IsInitialBlockDownload())
      //    throw JSONRPCError(-10, "BlakeStar is downloading blocks...");
  
  //    if (pindexBest->nHeight >= Params().LastPOWBlock())
  //        throw JSONRPCError(RPC_MISC_ERROR, "No more PoW blocks");
  
      typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
      static mapNewBlock_t mapNewBlock;
      static vector<CBlock*> vNewBlock;
  
      if (params.size() == 0)
      {
          // Update block
          static unsigned int nTransactionsUpdatedLast;
          static CBlockIndex* pindexPrev;
          static int64_t nStart;
          static CBlock* pblock;
          if (pindexPrev != pindexBest ||
              (mempool.GetTransactionsUpdated() != 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 = mempool.GetTransactionsUpdated();
              pindexPrev = pindexBest;
              nStart = GetTime();
  
              // Create new block
              pblock = CreateNewBlock(*pMiningKey);
              if (!pblock)
                  throw JSONRPCError(-7, "Out of memory");
              vNewBlock.push_back(pblock);
          }
  
          // Update nTime
          pblock->nTime = max(pindexPrev->GetPastTimeLimit()+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();
  
          CTransaction coinbaseTx = pblock->vtx[0];
          std::vector<uint256> merkle = pblock->GetMerkleBranch(0);
  
          Object result;
          result.push_back(Pair("data",     HexStr(BEGIN(pdata), END(pdata))));
          result.push_back(Pair("target",   HexStr(BEGIN(hashTarget), END(hashTarget))));
  
          CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
          ssTx << coinbaseTx;
          result.push_back(Pair("coinbase", HexStr(ssTx.begin(), ssTx.end())));
  
          Array merkle_arr;
  
          BOOST_FOREACH(uint256 merkleh, merkle) {
              merkle_arr.push_back(HexStr(BEGIN(merkleh), END(merkleh)));
          }
  
          result.push_back(Pair("merkle", merkle_arr));
  
  
          return result;
      }
      else
      {
          // Parse parameters
          vector<unsigned char> vchData = ParseHex(params[0].get_str());
          vector<unsigned char> coinbase;
  
          if(params.size() == 2)
              coinbase = ParseHex(params[1].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;
  
          if(coinbase.size() == 0)
              pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second;
          else
              CDataStream(coinbase, SER_NETWORK, PROTOCOL_VERSION) >> pblock->vtx[0]; // FIXME - HACK!
  
          pblock->hashMerkleRoot = pblock->BuildMerkleTree();
  
          assert(pwalletMain != NULL);
          return CheckWork(pblock, *pwalletMain, *pMiningKey);
      }
  }
  
  
  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(RPC_CLIENT_NOT_CONNECTED, "BlakeStar is not connected!");
  
      //if (IsInitialBlockDownload())
      //    throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "BlakeStar is downloading blocks...");
  
  //    if (pindexBest->nHeight >= Params().LastPOWBlock())
  //        throw JSONRPCError(RPC_MISC_ERROR, "No more PoW blocks");
  
      typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
      static mapNewBlock_t mapNewBlock;    // FIXME: thread safety
      static vector<CBlock*> vNewBlock;
  
      if (params.size() == 0)
      {
          // Update block
          static unsigned int nTransactionsUpdatedLast;
          static CBlockIndex* pindexPrev;
          static int64_t nStart;
          static CBlock* pblock;
          if (pindexPrev != pindexBest ||
              (mempool.GetTransactionsUpdated() != 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();
              }
  
              // Clear pindexPrev so future getworks make a new block, despite any failures from here on
              pindexPrev = NULL;
  
              // Store the pindexBest used before CreateNewBlock, to avoid races
              nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
              CBlockIndex* pindexPrevNew = pindexBest;
              nStart = GetTime();
  
              // Create new block
              pblock = CreateNewBlock(*pMiningKey);
              if (!pblock)
                  throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
              vNewBlock.push_back(pblock);
  
              // Need to update only after we know CreateNewBlock succeeded
              pindexPrev = pindexPrevNew;
          }
  
          // Update nTime
          pblock->UpdateTime(pindexPrev);
          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);
  
          // Pre-build 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(RPC_INVALID_PARAMETER, "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();
  
          assert(pwalletMain != NULL);
          return CheckWork(pblock, *pwalletMain, *pMiningKey);
      }
  }
  
  
  Value getblocktemplate(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() > 1)
          throw runtime_error(
              "getblocktemplate [params]\n"
              "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"
              "  \"coinbaseaux\" : data that should be included in coinbase\n"
              "  \"coinbasevalue\" : maximum allowable input to coinbase transaction, including the generation award and transaction fees\n"
              "  \"target\" : hash target\n"
              "  \"mintime\" : minimum timestamp appropriate for next block\n"
              "  \"curtime\" : current timestamp\n"
              "  \"mutable\" : list of ways the block template may be changed\n"
              "  \"noncerange\" : range of valid nonces\n"
              "  \"sigoplimit\" : limit of sigops in blocks\n"
              "  \"sizelimit\" : limit of block size\n"
              "  \"bits\" : compressed target of next block\n"
              "  \"height\" : height of the next block\n"
              "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.");
  
      std::string strMode = "template";
      if (params.size() > 0)
      {
          const Object& oparam = params[0].get_obj();
          const Value& modeval = find_value(oparam, "mode");
          if (modeval.type() == str_type)
              strMode = modeval.get_str();
          else if (modeval.type() == null_type)
          {
              /* Do nothing */
          }
          else
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
      }
  
      if (strMode != "template")
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
  
      if (vNodes.empty())
          throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "BlakeStar is not connected!");
  
      //if (IsInitialBlockDownload())
      //    throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "BlakeStar is downloading blocks...");
  
  //    if (pindexBest->nHeight >= Params().LastPOWBlock())
  //        throw JSONRPCError(RPC_MISC_ERROR, "No more PoW blocks");
  
      // Update block
      static unsigned int nTransactionsUpdatedLast;
      static CBlockIndex* pindexPrev;
      static int64_t nStart;
      static CBlock* pblock;
      if (pindexPrev != pindexBest ||
          (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5))
      {
          // Clear pindexPrev so future calls make a new block, despite any failures from here on
          pindexPrev = NULL;
  
          // Store the pindexBest used before CreateNewBlock, to avoid races
          nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
          CBlockIndex* pindexPrevNew = pindexBest;
          nStart = GetTime();
  
          // Create new block
          if(pblock)
          {
              delete pblock;
              pblock = NULL;
          }
          pblock = CreateNewBlock(*pMiningKey);
          if (!pblock)
              throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
  
          // Need to update only after we know CreateNewBlock succeeded
          pindexPrev = pindexPrevNew;
      }
  
      // Update nTime
      pblock->UpdateTime(pindexPrev);
      pblock->nNonce = 0;
  
      Array transactions;
      map<uint256, int64_t> setTxIndex;
      int i = 0;
      CTxDB txdb("r");
      BOOST_FOREACH (CTransaction& tx, pblock->vtx)
      {
          uint256 txHash = tx.GetHash();
          setTxIndex[txHash] = i++;
  
          if (tx.IsCoinBase() || tx.IsCoinStake())
              continue;
  
          Object entry;
  
          CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
          ssTx << tx;
          entry.push_back(Pair("data", HexStr(ssTx.begin(), ssTx.end())));
  
          entry.push_back(Pair("hash", txHash.GetHex()));
  
          MapPrevTx mapInputs;
          map<uint256, CTxIndex> mapUnused;
          bool fInvalid = false;
          if (tx.FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid))
          {
              entry.push_back(Pair("fee", (int64_t)(tx.GetValueIn(mapInputs) - tx.GetValueOut())));
  
              Array deps;
              BOOST_FOREACH (MapPrevTx::value_type& inp, mapInputs)
              {
                  if (setTxIndex.count(inp.first))
                      deps.push_back(setTxIndex[inp.first]);
              }
              entry.push_back(Pair("depends", deps));
  
              int64_t nSigOps = GetLegacySigOpCount(tx);
              nSigOps += GetP2SHSigOpCount(tx, mapInputs);
              entry.push_back(Pair("sigops", nSigOps));
          }
  
          transactions.push_back(entry);
      }
  
      Object aux;
      aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end())));
  
      uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
  
      static Array aMutable;
      if (aMutable.empty())
      {
          aMutable.push_back("time");
          aMutable.push_back("transactions");
          aMutable.push_back("prevblock");
      }
  
      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("coinbaseaux", aux));
      result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0].vout[0].nValue));
      result.push_back(Pair("target", hashTarget.GetHex()));
      result.push_back(Pair("mintime", (int64_t)pindexPrev->GetPastTimeLimit()+1));
      result.push_back(Pair("mutable", aMutable));
      result.push_back(Pair("noncerange", "00000000ffffffff"));
      result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS));
      result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE));
      result.push_back(Pair("curtime", (int64_t)pblock->nTime));
      result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
      result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
  
      return result;
  }
  
  Value submitblock(const Array& params, bool fHelp)
  {
      if (fHelp || params.size() < 1 || params.size() > 2)
          throw runtime_error(
              "submitblock <hex data> [optional-params-obj]\n"
              "[optional-params-obj] parameter is currently ignored.\n"
              "Attempts to submit new block to network.\n"
              "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.");
  
      vector<unsigned char> blockData(ParseHex(params[0].get_str()));
      CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION);
      CBlock block;
      try {
          ssBlock >> block;
      }
      catch (std::exception &e) {
          throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
      }
  
      if (params.size() > 1)
      {
          const Object& oparam = params[1].get_obj();
  
          const Value& coinstake_v = find_value(oparam, "coinstake");
          if (coinstake_v.type() == str_type)
          {
              vector<unsigned char> txData(ParseHex(coinstake_v.get_str()));
              CDataStream ssTx(txData, SER_NETWORK, PROTOCOL_VERSION);
              CTransaction txCoinStake;
              try {
                  ssTx >> txCoinStake;
              }
              catch (std::exception &e) {
                  throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Coinstake decode failed");
              }
  
              block.vtx.insert(block.vtx.begin() + 1, txCoinStake);
              block.hashMerkleRoot = block.BuildMerkleTree();
  
              CPubKey pubkey;
              if (!pMiningKey->GetReservedKey(pubkey))
                  throw JSONRPCError(RPC_MISC_ERROR, "GetReservedKey failed");
  
              CKey key;
              if (!pwalletMain->GetKey(pubkey.GetID(), key))
                  throw JSONRPCError(RPC_MISC_ERROR, "GetKey failed");
  
              if (!key.Sign(block.GetHash(), block.vchBlockSig))
                  throw JSONRPCError(RPC_MISC_ERROR, "Sign failed");
          }
      }
  
      bool fAccepted = ProcessBlock(NULL, &block);
      if (!fAccepted)
          return "rejected";
  
      return Value::null;
  }
  