CurecoinSource/src/rpcblockchain.cpp

233 lines
7.7 KiB
C++

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2013 The curecoin developer
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "main.h"
#include "curecoinrpc.h"
using namespace json_spirit;
using namespace std;
extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, json_spirit::Object& entry);
double GetDifficulty(const CBlockIndex* blockindex)
{
// Floating point number that is a multiple of the minimum difficulty,
// minimum difficulty = 1.0.
if (blockindex == NULL)
{
if (pindexBest == NULL)
return 1.0;
else
blockindex = GetLastBlockIndex(pindexBest, false);
}
int nShift = (blockindex->nBits >> 24) & 0xff;
double dDiff =
(double)0x0000ffff / (double)(blockindex->nBits & 0x00ffffff);
while (nShift < 29)
{
dDiff *= 256.0;
nShift++;
}
while (nShift > 29)
{
dDiff /= 256.0;
nShift--;
}
return dDiff;
}
Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool fPrintTransactionDetail)
{
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()));
result.push_back(Pair("mint", ValueFromAmount(blockindex->nMint)));
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", GetDifficulty(blockindex)));
if (blockindex->pprev)
result.push_back(Pair("previousblockhash", blockindex->pprev->GetBlockHash().GetHex()));
if (blockindex->pnext)
result.push_back(Pair("nextblockhash", blockindex->pnext->GetBlockHash().GetHex()));
result.push_back(Pair("flags", strprintf("%s%s", blockindex->IsProofOfStake()? "proof-of-stake" : "proof-of-work", blockindex->GeneratedStakeModifier()? " stake-modifier": "")));
result.push_back(Pair("proofhash", blockindex->IsProofOfStake()? blockindex->hashProofOfStake.GetHex() : blockindex->GetBlockHash().GetHex()));
result.push_back(Pair("entropybit", (int)blockindex->GetStakeEntropyBit()));
result.push_back(Pair("modifier", strprintf("%016"PRI64x, blockindex->nStakeModifier)));
result.push_back(Pair("modifierchecksum", strprintf("%08x", blockindex->nStakeModifierChecksum)));
Array txinfo;
BOOST_FOREACH (const CTransaction& tx, block.vtx)
{
if (fPrintTransactionDetail)
{
Object entry;
entry.push_back(Pair("txid", tx.GetHash().GetHex()));
TxToJSON(tx, 0, entry);
txinfo.push_back(entry);
}
else
txinfo.push_back(tx.GetHash().GetHex());
}
result.push_back(Pair("tx", txinfo));
result.push_back(Pair("signature", HexStr(block.vchBlockSig.begin(), block.vchBlockSig.end())));
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 difficulty as a multiple of the minimum difficulty.");
Object obj;
obj.push_back(Pair("proof-of-work", GetDifficulty()));
obj.push_back(Pair("proof-of-stake", GetDifficulty(GetLastBlockIndex(pindexBest, true))));
obj.push_back(Pair("search-interval", (int)nLastCoinStakeSearchInterval));
return obj;
}
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 the nearest 0.01");
nTransactionFee = AmountFromValue(params[0]);
nTransactionFee = (nTransactionFee / 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 || params.size() > 2)
throw runtime_error(
"getblock <hash> [txinfo]\n"
"txinfo optional to print more detailed tx info\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, true);
return blockToJSON(block, pblockindex, params.size() > 1 ? params[1].get_bool() : false);
}
Value getblockbynumber(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"getblock <number> [txinfo]\n"
"txinfo optional to print more detailed tx info\n"
"Returns details of a block with given block-number.");
int nHeight = params[0].get_int();
if (nHeight < 0 || nHeight > nBestHeight)
throw runtime_error("Block number out of range.");
CBlock block;
CBlockIndex* pblockindex = mapBlockIndex[hashBestChain];
while (pblockindex->nHeight > nHeight)
pblockindex = pblockindex->pprev;
uint256 hash = *pblockindex->phashBlock;
pblockindex = mapBlockIndex[hash];
block.ReadFromDisk(pblockindex, true);
return blockToJSON(block, pblockindex, params.size() > 1 ? params[1].get_bool() : false);
}
// ppcoin: get information of sync-checkpoint
Value getcheckpoint(const Array& params, bool fHelp)
{
if (fHelp || params.size() != 0)
throw runtime_error(
"getcheckpoint\n"
"Show info of synchronized checkpoint.\n");
Object result;
CBlockIndex* pindexCheckpoint;
result.push_back(Pair("synccheckpoint", Checkpoints::hashSyncCheckpoint.ToString().c_str()));
pindexCheckpoint = mapBlockIndex[Checkpoints::hashSyncCheckpoint];
result.push_back(Pair("height", pindexCheckpoint->nHeight));
result.push_back(Pair("timestamp", DateTimeStrFormat(pindexCheckpoint->GetBlockTime()).c_str()));
if (mapArgs.count("-checkpointkey"))
result.push_back(Pair("checkpointmaster", true));
return result;
}