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// 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 "main.h"
#include "bitcoinrpc.h"
using namespace json_spirit;
using namespace std;
void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out);
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 = pindexBest;
}
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)
{
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", 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()));
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 as a multiple of the minimum difficulty.");
return GetDifficulty();
}
Value settxfee(const Array& params, bool fHelp)
{
if (fHelp || params.size() < 1 || params.size() > 1)
throw runtime_error(
"settxfee <amount>\n"
"<amount> is a real and is rounded to the nearest 0.00000001");
// Amount
int64 nAmount = 0;
if (params[0].get_real() != 0.0)
nAmount = AmountFromValue(params[0]); // rejects 0.0 amounts
nTransactionFee = nAmount;
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("bestblock", pcoinsTip->GetBestBlock()->GetBlockHash().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));
}
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;
}
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