src/rpcmining.cpp

   1 // Copyright (c) 2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2012 The Bitcoin developers
   3 // Distributed under the MIT/X11 software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include "main.h"
   7 #include "db.h"
   8 #include "txdb.h"
   9 #include "init.h"
  10 #include "miner.h"
  11 #include "kernel.h"
  12 #include "bitcoinrpc.h"
  13
  14 #include <boost/format.hpp>
  15 #include <boost/assign/list_of.hpp>
  16 #include <boost/iterator/counting_iterator.hpp>
  17
  18 using namespace json_spirit;
  19 using namespace std;
  20
  21 extern uint256 nPoWBase;
  22 extern uint64_t nStakeInputsMapSize;
  23
  24 Value getsubsidy(const Array& params, bool fHelp)
  25 {
  26     if (fHelp || params.size() > 1)
  27         throw runtime_error(
  28             "getsubsidy [nTarget]\n"
  29             "Returns proof-of-work subsidy value for the specified value of target.");
  30
  31     unsigned int nBits = 0;
  32
  33     if (params.size() != 0)
  34     {
  35         CBigNum bnTarget(uint256(params[0].get_str()));
  36         nBits = bnTarget.GetCompact();
  37     }
  38     else
  39     {
  40         nBits = GetNextTargetRequired(pindexBest, false);
  41     }
  42
  43     return (uint64_t)GetProofOfWorkReward(nBits);
  44 }
  45
  46 Value getmininginfo(const Array& params, bool fHelp)
  47 {
  48     if (fHelp || params.size() != 0)
  49         throw runtime_error(
  50             "getmininginfo\n"
  51             "Returns an object containing mining-related information.");
  52
  53     Object obj, diff, weight;
  54     obj.push_back(Pair("blocks",        (int)nBestHeight));
  55     obj.push_back(Pair("currentblocksize",(uint64_t)nLastBlockSize));
  56     obj.push_back(Pair("currentblocktx",(uint64_t)nLastBlockTx));
  57
  58     diff.push_back(Pair("proof-of-work",        GetDifficulty()));
  59     diff.push_back(Pair("proof-of-stake",       GetDifficulty(GetLastBlockIndex(pindexBest, true))));
  60     diff.push_back(Pair("search-interval",      (int)nLastCoinStakeSearchInterval));
  61     obj.push_back(Pair("difficulty",    diff));
  62
  63     obj.push_back(Pair("blockvalue",    (uint64_t)GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits)));
  64     obj.push_back(Pair("netmhashps",    GetPoWMHashPS()));
  65     obj.push_back(Pair("netstakeweight",GetPoSKernelPS()));
  66     obj.push_back(Pair("errors",        GetWarnings("statusbar")));
  67     obj.push_back(Pair("pooledtx",      (uint64_t)mempool.size()));
  68
  69     obj.push_back(Pair("stakeinputs",   (uint64_t)nStakeInputsMapSize));
  70     obj.push_back(Pair("stakeinterest", GetProofOfStakeReward(0, GetLastBlockIndex(pindexBest, true)->nBits, GetLastBlockIndex(pindexBest, true)->nTime, true)));
  71
  72     obj.push_back(Pair("testnet",       fTestNet));
  73     return obj;
  74 }
  75
  76 // scaninput '{"txid":"95d640426fe66de866a8cf2d0601d2c8cf3ec598109b4d4ffa7fd03dad6d35ce","difficulty":0.01, "days":10}'
  77 Value scaninput(const Array& params, bool fHelp)
  78 {
  79     if (fHelp || params.size() != 1)
  80         throw runtime_error(
  81             "scaninput {\"txid\":txid, \"vout\":[vout1, vout2, ..., voutN], \"difficulty\":difficulty, \"days\":days}\n"
  82             "Scan specified transaction or input for suitable kernel solutions.\n"
  83             "    difficulty - upper limit for difficulty, current difficulty by default;\n"
  84             "    days - time window, 90 days by default.\n"
  85         );
  86
  87     RPCTypeCheck(params, boost::assign::list_of(obj_type));
  88
  89     Object scanParams = params[0].get_obj();
  90
  91     const Value& txid_v = find_value(scanParams, "txid");
  92     if (txid_v.type() != str_type)
  93         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing txid key");
  94
  95     string txid = txid_v.get_str();
  96     if (!IsHex(txid))
  97         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
  98
  99     uint256 hash(txid);
 100     int32_t nDays = 90;
 101     uint32_t nBits = GetNextTargetRequired(pindexBest, true);
 102
 103     const Value& diff_v = find_value(scanParams, "difficulty");
 104     if (diff_v.type() == real_type)
 105     {
 106         double dDiff = diff_v.get_real();
 107         if (dDiff <= 0)
 108             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, diff must be greater than zero");
 109
 110         CBigNum bnTarget(nPoWBase);
 111         bnTarget *= 1000;
 112         bnTarget /= (int) (dDiff * 1000);
 113         nBits = bnTarget.GetCompact();
 114     }
 115
 116     const Value& days_v = find_value(scanParams, "days");
 117     if (days_v.type() == int_type)
 118     {
 119         nDays = days_v.get_int();
 120         if (nDays <= 0)
 121             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, interval length must be greater than zero");
 122     }
 123
 124
 125     CTransaction tx;
 126     uint256 hashBlock = 0;
 127     if (GetTransaction(hash, tx, hashBlock))
 128     {
 129         if (hashBlock == 0)
 130             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Unable to find transaction in the blockchain");
 131
 132         vector<int> vInputs(0);
 133         const Value& inputs_v = find_value(scanParams, "vout");
 134         if (inputs_v.type() == array_type)
 135         {
 136             Array inputs = inputs_v.get_array();
 137             BOOST_FOREACH(const Value &v_out, inputs)
 138             {
 139                 int nOut = v_out.get_int();
 140                 if (nOut < 0 || nOut > (int)tx.vout.size() - 1)
 141                 {
 142                     stringstream strErrorMsg;
 143                     strErrorMsg << boost::format("Invalid parameter, input number %d is out of range") % nOut;
 144                     throw JSONRPCError(RPC_INVALID_PARAMETER, strErrorMsg.str());
 145                 }
 146
 147                 vInputs.push_back(nOut);
 148             }
 149         }
 150         else
 151         {
 152             vInputs = vector<int>(boost::counting_iterator<int>( 0 ), boost::counting_iterator<int>( tx.vout.size() ));
 153         }
 154
 155         CTxDB txdb("r");
 156
 157         CBlock block;
 158         CTxIndex txindex;
 159
 160         // Load transaction index item
 161         if (!txdb.ReadTxIndex(tx.GetHash(), txindex))
 162             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Unable to read block index item");
 163
 164         // Read block header
 165         if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
 166             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "CBlock::ReadFromDisk() failed");
 167
 168         uint64_t nStakeModifier = 0;
 169         if (!GetKernelStakeModifier(block.GetHash(), nStakeModifier))
 170             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No kernel stake modifier generated yet");
 171
 172         std::pair<uint32_t, uint32_t> interval;
 173         interval.first = GetTime();
 174         // Only count coins meeting min age requirement
 175         if (nStakeMinAge + block.nTime > interval.first)
 176             interval.first += (nStakeMinAge + block.nTime - interval.first);
 177         interval.second = interval.first + nDays * nOneDay;
 178
 179         Array results;
 180         BOOST_FOREACH(const int &nOut, vInputs)
 181         {
 182             // Check for spent flag
 183             // It doesn't make sense to scan spent inputs.
 184             if (!txindex.vSpent[nOut].IsNull())
 185                 continue;
 186
 187             // Skip zero value outputs
 188             if (tx.vout[nOut].nValue == 0)
 189                 continue;
 190
 191             // Build static part of kernel
 192             CDataStream ssKernel(SER_GETHASH, 0);
 193             ssKernel << nStakeModifier;
 194             ssKernel << block.nTime << (txindex.pos.nTxPos - txindex.pos.nBlockPos) << tx.nTime << nOut;
 195             CDataStream::const_iterator itK = ssKernel.begin();
 196
 197             std::vector<std::pair<uint256, uint32_t> > result;
 198             if (ScanKernelForward((unsigned char *)&itK[0], nBits, tx.nTime, tx.vout[nOut].nValue, interval, result))
 199             {
 200                 BOOST_FOREACH(const PAIRTYPE(uint256, uint32_t) solution, result)
 201                 {
 202                     Object item;
 203                     item.push_back(Pair("nout", nOut));
 204                     item.push_back(Pair("hash", solution.first.GetHex()));
 205                     item.push_back(Pair("time", DateTimeStrFormat(solution.second)));
 206
 207                     results.push_back(item);
 208                 }
 209             }
 210         }
 211
 212         if (results.size() == 0)
 213             return false;
 214
 215         return results;
 216     }
 217     else
 218         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No information available about transaction");
 219 }
 220
 221 Value getworkex(const Array& params, bool fHelp)
 222 {
 223     if (fHelp || params.size() > 2)
 224         throw runtime_error(
 225             "getworkex [data, coinbase]\n"
 226             "If [data, coinbase] is not specified, returns extended work data.\n"
 227         );
 228
 229     if (vNodes.empty())
 230         throw JSONRPCError(-9, "NovaCoin is not connected!");
 231
 232     if (IsInitialBlockDownload())
 233         throw JSONRPCError(-10, "NovaCoin is downloading blocks...");
 234
 235     typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
 236     static mapNewBlock_t mapNewBlock;
 237     static vector<CBlock*> vNewBlock;
 238     static CReserveKey reservekey(pwalletMain);
 239
 240     if (params.size() == 0)
 241     {
 242         // Update block
 243         static unsigned int nTransactionsUpdatedLast;
 244         static CBlockIndex* pindexPrev;
 245         static int64_t nStart;
 246         static CBlock* pblock;
 247         if (pindexPrev != pindexBest ||
 248             (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60))
 249         {
 250             if (pindexPrev != pindexBest)
 251             {
 252                 // Deallocate old blocks since they're obsolete now
 253                 mapNewBlock.clear();
 254                 BOOST_FOREACH(CBlock* pblock, vNewBlock)
 255                     delete pblock;
 256                 vNewBlock.clear();
 257             }
 258             nTransactionsUpdatedLast = nTransactionsUpdated;
 259             pindexPrev = pindexBest;
 260             nStart = GetTime();
 261
 262             // Create new block
 263             pblock = CreateNewBlock(pwalletMain);
 264             if (!pblock)
 265                 throw JSONRPCError(-7, "Out of memory");
 266             vNewBlock.push_back(pblock);
 267         }
 268
 269         // Update nTime
 270         pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
 271         pblock->nNonce = 0;
 272
 273         // Update nExtraNonce
 274         static unsigned int nExtraNonce = 0;
 275         IncrementExtraNonce(pblock, pindexPrev, nExtraNonce);
 276
 277         // Save
 278         mapNewBlock[pblock->hashMerkleRoot] = make_pair(pblock, pblock->vtx[0].vin[0].scriptSig);
 279
 280         // Prebuild hash buffers
 281         char pmidstate[32];
 282         char pdata[128];
 283         char phash1[64];
 284         FormatHashBuffers(pblock, pmidstate, pdata, phash1);
 285
 286         uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
 287
 288         CTransaction coinbaseTx = pblock->vtx[0];
 289         std::vector<uint256> merkle = pblock->GetMerkleBranch(0);
 290
 291         Object result;
 292         result.push_back(Pair("data",     HexStr(BEGIN(pdata), END(pdata))));
 293         result.push_back(Pair("target",   HexStr(BEGIN(hashTarget), END(hashTarget))));
 294
 295         CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
 296         ssTx << coinbaseTx;
 297         result.push_back(Pair("coinbase", HexStr(ssTx.begin(), ssTx.end())));
 298
 299         Array merkle_arr;
 300
 301         BOOST_FOREACH(uint256 merkleh, merkle) {
 302             merkle_arr.push_back(HexStr(BEGIN(merkleh), END(merkleh)));
 303         }
 304
 305         result.push_back(Pair("merkle", merkle_arr));
 306
 307
 308         return result;
 309     }
 310     else
 311     {
 312         // Parse parameters
 313         vector<unsigned char> vchData = ParseHex(params[0].get_str());
 314         vector<unsigned char> coinbase;
 315
 316         if(params.size() == 2)
 317             coinbase = ParseHex(params[1].get_str());
 318
 319         if (vchData.size() != 128)
 320             throw JSONRPCError(-8, "Invalid parameter");
 321
 322         CBlock* pdata = (CBlock*)&vchData[0];
 323
 324         // Byte reverse
 325         for (int i = 0; i < 128/4; i++)
 326             ((unsigned int*)pdata)[i] = ByteReverse(((unsigned int*)pdata)[i]);
 327
 328         // Get saved block
 329         if (!mapNewBlock.count(pdata->hashMerkleRoot))
 330             return false;
 331         CBlock* pblock = mapNewBlock[pdata->hashMerkleRoot].first;
 332
 333         pblock->nTime = pdata->nTime;
 334         pblock->nNonce = pdata->nNonce;
 335
 336         if(coinbase.size() == 0)
 337             pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second;
 338         else
 339             CDataStream(coinbase, SER_NETWORK, PROTOCOL_VERSION) >> pblock->vtx[0]; // FIXME - HACK!
 340
 341         pblock->hashMerkleRoot = pblock->BuildMerkleTree();
 342
 343         return CheckWork(pblock, *pwalletMain, reservekey);
 344     }
 345 }
 346
 347
 348 Value getwork(const Array& params, bool fHelp)
 349 {
 350     if (fHelp || params.size() > 1)
 351         throw runtime_error(
 352             "getwork [data]\n"
 353             "If [data] is not specified, returns formatted hash data to work on:\n"
 354             "  \"midstate\" : precomputed hash state after hashing the first half of the data (DEPRECATED)\n" // deprecated
 355             "  \"data\" : block data\n"
 356             "  \"hash1\" : formatted hash buffer for second hash (DEPRECATED)\n" // deprecated
 357             "  \"target\" : little endian hash target\n"
 358             "If [data] is specified, tries to solve the block and returns true if it was successful.");
 359
 360     if (vNodes.empty())
 361         throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "NovaCoin is not connected!");
 362
 363     if (IsInitialBlockDownload())
 364         throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "NovaCoin is downloading blocks...");
 365
 366     typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t;
 367     static mapNewBlock_t mapNewBlock;    // FIXME: thread safety
 368     static vector<CBlock*> vNewBlock;
 369     static CReserveKey reservekey(pwalletMain);
 370
 371     if (params.size() == 0)
 372     {
 373         // Update block
 374         static unsigned int nTransactionsUpdatedLast;
 375         static CBlockIndex* pindexPrev;
 376         static int64_t nStart;
 377         static CBlock* pblock;
 378         if (pindexPrev != pindexBest ||
 379             (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60))
 380         {
 381             if (pindexPrev != pindexBest)
 382             {
 383                 // Deallocate old blocks since they're obsolete now
 384                 mapNewBlock.clear();
 385                 BOOST_FOREACH(CBlock* pblock, vNewBlock)
 386                     delete pblock;
 387                 vNewBlock.clear();
 388             }
 389
 390             // Clear pindexPrev so future getworks make a new block, despite any failures from here on
 391             pindexPrev = NULL;
 392
 393             // Store the pindexBest used before CreateNewBlock, to avoid races
 394             nTransactionsUpdatedLast = nTransactionsUpdated;
 395             CBlockIndex* pindexPrevNew = pindexBest;
 396             nStart = GetTime();
 397
 398             // Create new block
 399             pblock = CreateNewBlock(pwalletMain);
 400             if (!pblock)
 401                 throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
 402             vNewBlock.push_back(pblock);
 403
 404             // Need to update only after we know CreateNewBlock succeeded
 405             pindexPrev = pindexPrevNew;
 406         }
 407
 408         // Update nTime
 409         pblock->UpdateTime(pindexPrev);
 410         pblock->nNonce = 0;
 411
 412         // Update nExtraNonce
 413         static unsigned int nExtraNonce = 0;
 414         IncrementExtraNonce(pblock, pindexPrev, nExtraNonce);
 415
 416         // Save
 417         mapNewBlock[pblock->hashMerkleRoot] = make_pair(pblock, pblock->vtx[0].vin[0].scriptSig);
 418
 419         // Pre-build hash buffers
 420         char pmidstate[32];
 421         char pdata[128];
 422         char phash1[64];
 423         FormatHashBuffers(pblock, pmidstate, pdata, phash1);
 424
 425         uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
 426
 427         Object result;
 428         result.push_back(Pair("midstate", HexStr(BEGIN(pmidstate), END(pmidstate)))); // deprecated
 429         result.push_back(Pair("data",     HexStr(BEGIN(pdata), END(pdata))));
 430         result.push_back(Pair("hash1",    HexStr(BEGIN(phash1), END(phash1)))); // deprecated
 431         result.push_back(Pair("target",   HexStr(BEGIN(hashTarget), END(hashTarget))));
 432         return result;
 433     }
 434     else
 435     {
 436         // Parse parameters
 437         vector<unsigned char> vchData = ParseHex(params[0].get_str());
 438         if (vchData.size() != 128)
 439             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter");
 440         CBlock* pdata = (CBlock*)&vchData[0];
 441
 442         // Byte reverse
 443         for (int i = 0; i < 128/4; i++)
 444             ((unsigned int*)pdata)[i] = ByteReverse(((unsigned int*)pdata)[i]);
 445
 446         // Get saved block
 447         if (!mapNewBlock.count(pdata->hashMerkleRoot))
 448             return false;
 449         CBlock* pblock = mapNewBlock[pdata->hashMerkleRoot].first;
 450
 451         pblock->nTime = pdata->nTime;
 452         pblock->nNonce = pdata->nNonce;
 453         pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second;
 454         pblock->hashMerkleRoot = pblock->BuildMerkleTree();
 455
 456         return CheckWork(pblock, *pwalletMain, reservekey);
 457     }
 458 }
 459
 460
 461 Value getblocktemplate(const Array& params, bool fHelp)
 462 {
 463     if (fHelp || params.size() > 1)
 464         throw runtime_error(
 465             "getblocktemplate [params]\n"
 466             "Returns data needed to construct a block to work on:\n"
 467             "  \"version\" : block version\n"
 468             "  \"previousblockhash\" : hash of current highest block\n"
 469             "  \"transactions\" : contents of non-coinbase transactions that should be included in the next block\n"
 470             "  \"coinbaseaux\" : data that should be included in coinbase\n"
 471             "  \"coinbasevalue\" : maximum allowable input to coinbase transaction, including the generation award and transaction fees\n"
 472             "  \"target\" : hash target\n"
 473             "  \"mintime\" : minimum timestamp appropriate for next block\n"
 474             "  \"curtime\" : current timestamp\n"
 475             "  \"mutable\" : list of ways the block template may be changed\n"
 476             "  \"noncerange\" : range of valid nonces\n"
 477             "  \"sigoplimit\" : limit of sigops in blocks\n"
 478             "  \"sizelimit\" : limit of block size\n"
 479             "  \"bits\" : compressed target of next block\n"
 480             "  \"height\" : height of the next block\n"
 481             "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.");
 482
 483     std::string strMode = "template";
 484     if (params.size() > 0)
 485     {
 486         const Object& oparam = params[0].get_obj();
 487         const Value& modeval = find_value(oparam, "mode");
 488         if (modeval.type() == str_type)
 489             strMode = modeval.get_str();
 490         else if (modeval.type() == null_type)
 491         {
 492             /* Do nothing */
 493         }
 494         else
 495             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
 496     }
 497
 498     if (strMode != "template")
 499         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
 500
 501     if (vNodes.empty())
 502         throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "NovaCoin is not connected!");
 503
 504     if (IsInitialBlockDownload())
 505         throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "NovaCoin is downloading blocks...");
 506
 507     static CReserveKey reservekey(pwalletMain);
 508
 509     // Update block
 510     static unsigned int nTransactionsUpdatedLast;
 511     static CBlockIndex* pindexPrev;
 512     static int64_t nStart;
 513     static CBlock* pblock;
 514     if (pindexPrev != pindexBest ||
 515         (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 5))
 516     {
 517         // Clear pindexPrev so future calls make a new block, despite any failures from here on
 518         pindexPrev = NULL;
 519
 520         // Store the pindexBest used before CreateNewBlock, to avoid races
 521         nTransactionsUpdatedLast = nTransactionsUpdated;
 522         CBlockIndex* pindexPrevNew = pindexBest;
 523         nStart = GetTime();
 524
 525         // Create new block
 526         if(pblock)
 527         {
 528             delete pblock;
 529             pblock = NULL;
 530         }
 531         pblock = CreateNewBlock(pwalletMain);
 532         if (!pblock)
 533             throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
 534
 535         // Need to update only after we know CreateNewBlock succeeded
 536         pindexPrev = pindexPrevNew;
 537     }
 538
 539     // Update nTime
 540     pblock->UpdateTime(pindexPrev);
 541     pblock->nNonce = 0;
 542
 543     Array transactions;
 544     map<uint256, int64_t> setTxIndex;
 545     int i = 0;
 546     CTxDB txdb("r");
 547     BOOST_FOREACH (CTransaction& tx, pblock->vtx)
 548     {
 549         uint256 txHash = tx.GetHash();
 550         setTxIndex[txHash] = i++;
 551
 552         if (tx.IsCoinBase() || tx.IsCoinStake())
 553             continue;
 554
 555         Object entry;
 556
 557         CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
 558         ssTx << tx;
 559         entry.push_back(Pair("data", HexStr(ssTx.begin(), ssTx.end())));
 560
 561         entry.push_back(Pair("hash", txHash.GetHex()));
 562
 563         MapPrevTx mapInputs;
 564         map<uint256, CTxIndex> mapUnused;
 565         bool fInvalid = false;
 566         if (tx.FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid))
 567         {
 568             entry.push_back(Pair("fee", (int64_t)(tx.GetValueIn(mapInputs) - tx.GetValueOut())));
 569
 570             Array deps;
 571             BOOST_FOREACH (MapPrevTx::value_type& inp, mapInputs)
 572             {
 573                 if (setTxIndex.count(inp.first))
 574                     deps.push_back(setTxIndex[inp.first]);
 575             }
 576             entry.push_back(Pair("depends", deps));
 577
 578             int64_t nSigOps = tx.GetLegacySigOpCount();
 579             nSigOps += tx.GetP2SHSigOpCount(mapInputs);
 580             entry.push_back(Pair("sigops", nSigOps));
 581         }
 582
 583         transactions.push_back(entry);
 584     }
 585
 586     Object aux;
 587     aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end())));
 588
 589     uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
 590
 591     static Array aMutable;
 592     if (aMutable.empty())
 593     {
 594         aMutable.push_back("time");
 595         aMutable.push_back("transactions");
 596         aMutable.push_back("prevblock");
 597     }
 598
 599     Object result;
 600     result.push_back(Pair("version", pblock->nVersion));
 601     result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
 602     result.push_back(Pair("transactions", transactions));
 603     result.push_back(Pair("coinbaseaux", aux));
 604     result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0].vout[0].nValue));
 605     result.push_back(Pair("target", hashTarget.GetHex()));
 606     result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1));
 607     result.push_back(Pair("mutable", aMutable));
 608     result.push_back(Pair("noncerange", "00000000ffffffff"));
 609     result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS));
 610     result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE));
 611     result.push_back(Pair("curtime", (int64_t)pblock->nTime));
 612     result.push_back(Pair("bits", HexBits(pblock->nBits)));
 613     result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
 614
 615     return result;
 616 }
 617
 618 Value submitblock(const Array& params, bool fHelp)
 619 {
 620     if (fHelp || params.size() < 1 || params.size() > 2)
 621         throw runtime_error(
 622             "submitblock <hex data> [optional-params-obj]\n"
 623             "[optional-params-obj] parameter is currently ignored.\n"
 624             "Attempts to submit new block to network.\n"
 625             "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.");
 626
 627     vector<unsigned char> blockData(ParseHex(params[0].get_str()));
 628     CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION);
 629     CBlock block;
 630     try {
 631         ssBlock >> block;
 632     }
 633     catch (const std::exception&) {
 634         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
 635     }
 636
 637     bool fAccepted = ProcessBlock(NULL, &block);
 638     if (!fAccepted)
 639         return "rejected";
 640
 641     return Value::null;
 642 }
 643