primeminer/src/rpcblockchain.cpp

365 lines
14 KiB
C++

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Copyright (c) 2013 Primecoin developers
// Distributed under conditional MIT/X11 software license,
// see the accompanying file COPYING
#include "main.h"
#include "bitcoinrpc.h"
#include "prime.h"
#include "wallet.h"
#include "init.h"
using namespace json_spirit;
using namespace std;
void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out);
// Primecoin: get prime difficulty value (chain length)
double GetDifficulty(const CBlockIndex* blockindex)
{
// Floating point number that is approximate log scale of prime target,
// minimum difficulty = 256, maximum difficulty = 2039
if (blockindex == NULL)
{
if (pindexBest == NULL)
return 256.0;
else
blockindex = pindexBest;
}
double dDiff = GetPrimeDifficulty(blockindex->nBits);
return dDiff;
}
Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
{
Object result;
result.push_back(Pair("hash", block.GetHash().GetHex()));
CMerkleTx txGen(block.vtx[0]);
txGen.SetMerkleBranch(&block);
result.push_back(Pair("confirmations", (int)txGen.GetDepthInMainChain()));
result.push_back(Pair("size", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION)));
result.push_back(Pair("height", blockindex->nHeight));
result.push_back(Pair("version", block.nVersion));
result.push_back(Pair("merkleroot", block.hashMerkleRoot.GetHex()));
Array txs;
BOOST_FOREACH(const CTransaction&tx, block.vtx)
txs.push_back(tx.GetHash().GetHex());
result.push_back(Pair("tx", txs));
result.push_back(Pair("time", (boost::int64_t)block.GetBlockTime()));
result.push_back(Pair("nonce", (boost::uint64_t)block.nNonce));
result.push_back(Pair("bits", HexBits(block.nBits)));
result.push_back(Pair("difficulty", GetPrimeDifficulty(block.nBits)));
result.push_back(Pair("transition", GetPrimeDifficulty(blockindex->nWorkTransition)));
CBigNum bnPrimeChainOrigin = CBigNum(block.GetHeaderHash()) * block.bnPrimeChainMultiplier;
result.push_back(Pair("primechain", GetPrimeChainName(blockindex->nPrimeChainType, blockindex->nPrimeChainLength).c_str()));
result.push_back(Pair("primeorigin", bnPrimeChainOrigin.ToString().c_str()));
if (blockindex->pprev)
result.push_back(Pair("previousblockhash", blockindex->pprev->GetBlockHash().GetHex()));
if (blockindex->pnext)
result.push_back(Pair("nextblockhash", blockindex->pnext->GetBlockHash().GetHex()));
return result;
}
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;
}
Value getdifficulty(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getdifficulty\n"
"Returns the proof-of-work difficulty in prime chain length.");
return GetDifficulty();
}
Value settxfee(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 1 || AmountFromValue(params[0]) < MIN_TX_FEE)
throw runtime_error(
"settxfee <amount>\n"
"<amount> is a real and is rounded to 0.01 (cent)\n"
"Minimum and default transaction fee per KB is 1 cent");
nTransactionFee = (AmountFromValue(params[0]) / CENT) * CENT; // round to cent
return true;
}
Value getrawmempool(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getrawmempool\n"
"Returns all transaction ids in memory pool.");
vector<uint256> vtxid;
mempool.queryHashes(vtxid);
Array a;
BOOST_FOREACH(const uint256& hash, vtxid)
a.push_back(hash.ToString());
return a;
}
Value getblockhash(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"getblockhash <index>\n"
"Returns hash of block in best-block-chain at <index>.");
int nHeight = params[0].get_int();
if (nHeight < 0 || nHeight > nBestHeight)
throw runtime_error("Block number out of range.");
CBlockIndex* pblockindex = FindBlockByHeight(nHeight);
return pblockindex->phashBlock->GetHex();
}
Value getblock(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 1)
throw runtime_error(
"getblock <hash>\n"
"Returns details of a block with given block-hash.");
std::string strHash = params[0].get_str();
uint256 hash(strHash);
if (mapBlockIndex.count(hash) == 0)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
CBlock block;
CBlockIndex* pblockindex = mapBlockIndex[hash];
block.ReadFromDisk(pblockindex);
return blockToJSON(block, pblockindex);
}
Value gettxoutsetinfo(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"gettxoutsetinfo\n"
"Returns statistics about the unspent transaction output set.");
Object ret;
CCoinsStats stats;
if (pcoinsTip->GetStats(stats)) {
ret.push_back(Pair("height", (boost::int64_t)stats.nHeight));
ret.push_back(Pair("bestblock", stats.hashBlock.GetHex()));
ret.push_back(Pair("transactions", (boost::int64_t)stats.nTransactions));
ret.push_back(Pair("txouts", (boost::int64_t)stats.nTransactionOutputs));
ret.push_back(Pair("bytes_serialized", (boost::int64_t)stats.nSerializedSize));
ret.push_back(Pair("hash_serialized", stats.hashSerialized.GetHex()));
ret.push_back(Pair("total_amount", ValueFromAmount(stats.nTotalAmount)));
}
return ret;
}
Value gettxout(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 2 || params.size() > 3)
throw runtime_error(
"gettxout <txid> <n> [includemempool=true]\n"
"Returns details about an unspent transaction output.");
Object ret;
std::string strHash = params[0].get_str();
uint256 hash(strHash);
int n = params[1].get_int();
bool fMempool = true;
if (params.size() > 2)
fMempool = params[2].get_bool();
CCoins coins;
if (fMempool) {
LOCK(mempool.cs);
CCoinsViewMemPool view(*pcoinsTip, mempool);
if (!view.GetCoins(hash, coins))
return Value::null;
mempool.pruneSpent(hash, coins); // TODO: this should be done by the CCoinsViewMemPool
} else {
if (!pcoinsTip->GetCoins(hash, coins))
return Value::null;
}
if (n<0 || (unsigned int)n>=coins.vout.size() || coins.vout[n].IsNull())
return Value::null;
ret.push_back(Pair("bestblock", pcoinsTip->GetBestBlock()->GetBlockHash().GetHex()));
if ((unsigned int)coins.nHeight == MEMPOOL_HEIGHT)
ret.push_back(Pair("confirmations", 0));
else
ret.push_back(Pair("confirmations", pcoinsTip->GetBestBlock()->nHeight - coins.nHeight + 1));
ret.push_back(Pair("value", ValueFromAmount(coins.vout[n].nValue)));
Object o;
ScriptPubKeyToJSON(coins.vout[n].scriptPubKey, o);
ret.push_back(Pair("scriptPubKey", o));
ret.push_back(Pair("version", coins.nVersion));
ret.push_back(Pair("coinbase", coins.fCoinBase));
return ret;
}
// Primecoin: list prime chain records within primecoin network
Value listprimerecords(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"listprimerecords <primechain length> [primechain type]\n"
"Returns the list of record prime chains in primecoin network.\n"
"<primechain length> is integer like 10, 11, 12 etc.\n"
"[primechain type] is optional type, among 1CC, 2CC and TWN");
int nPrimeChainLength = params[0].get_int();
unsigned int nPrimeChainType = 0;
if (params.size() > 1)
{
std::string strPrimeChainType = params[1].get_str();
if (strPrimeChainType.compare("1CC") == 0)
nPrimeChainType = PRIME_CHAIN_CUNNINGHAM1;
else if (strPrimeChainType.compare("2CC") == 0)
nPrimeChainType = PRIME_CHAIN_CUNNINGHAM2;
else if (strPrimeChainType.compare("TWN") == 0)
nPrimeChainType = PRIME_CHAIN_BI_TWIN;
else
throw runtime_error("Prime chain type must be 1CC, 2CC or TWN.");
}
Array ret;
CBigNum bnPrimeRecord = 0;
for (CBlockIndex* pindex = pindexGenesisBlock; pindex; pindex = pindex->pnext)
{
if (nPrimeChainLength != (int) TargetGetLength(pindex->nPrimeChainLength))
continue; // length not matching, next block
if (nPrimeChainType && nPrimeChainType != pindex->nPrimeChainType)
continue; // type not matching, next block
CBlock block;
block.ReadFromDisk(pindex); // read block
CBigNum bnPrimeChainOrigin = CBigNum(block.GetHeaderHash()) * block.bnPrimeChainMultiplier; // compute prime chain origin
if (bnPrimeChainOrigin > bnPrimeRecord)
{
bnPrimeRecord = bnPrimeChainOrigin; // new record in primecoin
Object entry;
entry.push_back(Pair("time", DateTimeStrFormat("%Y-%m-%d %H:%M:%S UTC", pindex->GetBlockTime()).c_str()));
entry.push_back(Pair("epoch", (boost::int64_t) pindex->GetBlockTime()));
entry.push_back(Pair("height", pindex->nHeight));
entry.push_back(Pair("ismine", pwalletMain->IsMine(block.vtx[0])));
entry.push_back(Pair("primedigit", (int) bnPrimeChainOrigin.ToString().length()));
entry.push_back(Pair("primechain", GetPrimeChainName(pindex->nPrimeChainType, pindex->nPrimeChainLength).c_str()));
entry.push_back(Pair("primeorigin", bnPrimeChainOrigin.ToString().c_str()));
entry.push_back(Pair("primorialform", GetPrimeOriginPrimorialForm(bnPrimeChainOrigin).c_str()));
ret.push_back(entry);
}
}
return ret;
}
// Primecoin: list top prime chain within primecoin network
Value listtopprimes(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"listtopprimes <primechain length> [primechain type]\n"
"Returns the list of top prime chains in primecoin network.\n"
"<primechain length> is integer like 10, 11, 12 etc.\n"
"[primechain type] is optional type, among 1CC, 2CC and TWN");
int nPrimeChainLength = params[0].get_int();
unsigned int nPrimeChainType = 0;
if (params.size() > 1)
{
std::string strPrimeChainType = params[1].get_str();
if (strPrimeChainType.compare("1CC") == 0)
nPrimeChainType = PRIME_CHAIN_CUNNINGHAM1;
else if (strPrimeChainType.compare("2CC") == 0)
nPrimeChainType = PRIME_CHAIN_CUNNINGHAM2;
else if (strPrimeChainType.compare("TWN") == 0)
nPrimeChainType = PRIME_CHAIN_BI_TWIN;
else
throw runtime_error("Prime chain type must be 1CC, 2CC or TWN.");
}
// Search for top prime chains
unsigned int nRankingSize = 10; // ranking list size
unsigned int nSortVectorSize = 64; // vector size for sort operation
CBigNum bnPrimeQualify = 0; // minimum qualify value for ranking list
vector<pair<CBigNum, uint256> > vSortedByOrigin;
for (CBlockIndex* pindex = pindexGenesisBlock; pindex; pindex = pindex->pnext)
{
if (nPrimeChainLength != (int) TargetGetLength(pindex->nPrimeChainLength))
continue; // length not matching, next block
if (nPrimeChainType && nPrimeChainType != pindex->nPrimeChainType)
continue; // type not matching, next block
CBlock block;
block.ReadFromDisk(pindex); // read block
CBigNum bnPrimeChainOrigin = CBigNum(block.GetHeaderHash()) * block.bnPrimeChainMultiplier; // compute prime chain origin
if (bnPrimeChainOrigin > bnPrimeQualify)
vSortedByOrigin.push_back(make_pair(bnPrimeChainOrigin, block.GetHash()));
if (vSortedByOrigin.size() >= nSortVectorSize)
{
// Sort prime chain candidates
sort(vSortedByOrigin.begin(), vSortedByOrigin.end());
reverse(vSortedByOrigin.begin(), vSortedByOrigin.end());
// Truncate candidate list
while (vSortedByOrigin.size() > nRankingSize)
vSortedByOrigin.pop_back();
// Update minimum qualify value for top prime chains
bnPrimeQualify = vSortedByOrigin.back().first;
}
}
// Final sort of prime chain candidates
sort(vSortedByOrigin.begin(), vSortedByOrigin.end());
reverse(vSortedByOrigin.begin(), vSortedByOrigin.end());
// Truncate candidate list
while (vSortedByOrigin.size() > nRankingSize)
vSortedByOrigin.pop_back();
// Output top prime chains
Array ret;
BOOST_FOREACH(const PAIRTYPE(CBigNum, uint256)& item, vSortedByOrigin)
{
CBigNum bnPrimeChainOrigin = item.first;
CBlockIndex* pindex = mapBlockIndex[item.second];
CBlock block;
block.ReadFromDisk(pindex); // read block
Object entry;
entry.push_back(Pair("time", DateTimeStrFormat("%Y-%m-%d %H:%M:%S UTC", pindex->GetBlockTime()).c_str()));
entry.push_back(Pair("epoch", (boost::int64_t) pindex->GetBlockTime()));
entry.push_back(Pair("height", pindex->nHeight));
entry.push_back(Pair("ismine", pwalletMain->IsMine(block.vtx[0])));
entry.push_back(Pair("primedigit", (int) bnPrimeChainOrigin.ToString().length()));
entry.push_back(Pair("primechain", GetPrimeChainName(pindex->nPrimeChainType, pindex->nPrimeChainLength).c_str()));
entry.push_back(Pair("primeorigin", bnPrimeChainOrigin.ToString().c_str()));
entry.push_back(Pair("primorialform", GetPrimeOriginPrimorialForm(bnPrimeChainOrigin).c_str()));
ret.push_back(entry);
}
return ret;
}