#include "kernel.h"
#include "bitcoinrpc.h"
+#include <boost/format.hpp>
+#include <boost/assign/list_of.hpp>
+#include <boost/iterator/counting_iterator.hpp>
+
using namespace json_spirit;
using namespace std;
return obj;
}
+// scaninput '{"txid":"95d640426fe66de866a8cf2d0601d2c8cf3ec598109b4d4ffa7fd03dad6d35ce","difficulty":0.01, "days":10}'
Value scaninput(const Array& params, bool fHelp)
{
- if (fHelp || params.size() > 4 || params.size() < 2)
+ if (fHelp || params.size() != 1)
throw runtime_error(
- "scaninput <txid> <nout> [difficulty] [days]\n"
- "Scan specified input for suitable kernel solutions.\n"
- " [difficulty] - upper limit for difficulty, current difficulty by default;\n"
- " [days] - time window, 365 days by default.\n"
+ "scaninput {\"txid\":txid, \"vout\":[vout1, vout2, ..., voutN], \"difficulty\":difficulty, \"days\":days}\n"
+ "Scan specified transaction or input for suitable kernel solutions.\n"
+ " difficulty - upper limit for difficulty, current difficulty by default;\n"
+ " days - time window, 90 days by default.\n"
);
+ RPCTypeCheck(params, boost::assign::list_of(obj_type));
+
+ Object scanParams = params[0].get_obj();
+
+ const Value& txid_v = find_value(scanParams, "txid");
+ if (txid_v.type() != str_type)
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, missing txid key");
- uint256 hash;
- hash.SetHex(params[0].get_str());
+ string txid = txid_v.get_str();
+ if (!IsHex(txid))
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
- uint32_t nOut = params[1].get_int(), nBits = GetNextTargetRequired(pindexBest, true), nDays = 365;
+ uint256 hash(txid);
+ int32_t nDays = 90;
+ uint32_t nBits = GetNextTargetRequired(pindexBest, true);
- if (params.size() > 2)
+ const Value& diff_v = find_value(scanParams, "difficulty");
+ if (diff_v.type() == real_type)
{
+ double dDiff = diff_v.get_real();
+ if (dDiff <= 0)
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, diff must be greater than zero");
+
CBigNum bnTarget(nPoWBase);
bnTarget *= 1000;
- bnTarget /= (int) (params[2].get_real() * 1000);
+ bnTarget /= (int) (dDiff * 1000);
nBits = bnTarget.GetCompact();
}
- if (params.size() > 3)
+ const Value& days_v = find_value(scanParams, "days");
+ if (days_v.type() == int_type)
{
- nDays = params[3].get_int();
+ nDays = days_v.get_int();
+ if (nDays <= 0)
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, interval length must be greater than zero");
}
+
CTransaction tx;
uint256 hashBlock = 0;
if (GetTransaction(hash, tx, hashBlock))
{
- if (nOut > tx.vout.size())
- throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Incorrect output number");
-
if (hashBlock == 0)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Unable to find transaction in the blockchain");
+ vector<int> vInputs(0);
+ const Value& inputs_v = find_value(scanParams, "vout");
+ if (inputs_v.type() == array_type)
+ {
+ Array inputs = inputs_v.get_array();
+ BOOST_FOREACH(const Value &v_out, inputs)
+ {
+ int nOut = v_out.get_int();
+ if (nOut < 0 || nOut > (int)tx.vout.size() - 1)
+ {
+ stringstream strErrorMsg;
+ strErrorMsg << boost::format("Invalid parameter, input number %d is out of range") % nOut;
+ throw JSONRPCError(RPC_INVALID_PARAMETER, strErrorMsg.str());
+ }
+
+ vInputs.push_back(nOut);
+ }
+ }
+ else
+ {
+ vInputs = vector<int>(boost::counting_iterator<int>( 0 ), boost::counting_iterator<int>( tx.vout.size() ));
+ }
+
CTxDB txdb("r");
CBlock block;
// Only count coins meeting min age requirement
if (nStakeMinAge + block.nTime > interval.first)
interval.first += (nStakeMinAge + block.nTime - interval.first);
- interval.second = interval.first + nDays * 86400;
-
- // Build static part of kernel
- CDataStream ssKernel(SER_GETHASH, 0);
- ssKernel << nStakeModifier;
- ssKernel << block.nTime << (txindex.pos.nTxPos - txindex.pos.nBlockPos) << tx.nTime << nOut;
- CDataStream::const_iterator itK = ssKernel.begin();
+ interval.second = interval.first + nDays * nOneDay;
- std::vector<std::pair<uint256, uint32_t> > solutions;
- if (ScanKernelForward((unsigned char *)&itK[0], nBits, tx.nTime, tx.vout[nOut].nValue, interval, solutions))
+ Array results;
+ BOOST_FOREACH(const int &nOut, vInputs)
{
- Array results;
-
- BOOST_FOREACH(const PAIRTYPE(uint256, uint32_t) solution, solutions)
+ // Check for spent flag
+ // It doesn't make sense to scan spent inputs.
+ if (!txindex.vSpent[nOut].IsNull())
+ continue;
+
+ // Skip zero value outputs
+ if (tx.vout[nOut].nValue == 0)
+ continue;
+
+ // Build static part of kernel
+ CDataStream ssKernel(SER_GETHASH, 0);
+ ssKernel << nStakeModifier;
+ ssKernel << block.nTime << (txindex.pos.nTxPos - txindex.pos.nBlockPos) << tx.nTime << nOut;
+ CDataStream::const_iterator itK = ssKernel.begin();
+
+ std::vector<std::pair<uint256, uint32_t> > result;
+ if (ScanKernelForward((unsigned char *)&itK[0], nBits, tx.nTime, tx.vout[nOut].nValue, interval, result))
{
-
- Object item;
- item.push_back(Pair("hash", solution.first.GetHex()));
- item.push_back(Pair("time", DateTimeStrFormat(solution.second)));
-
- results.push_back(item);
+ BOOST_FOREACH(const PAIRTYPE(uint256, uint32_t) solution, result)
+ {
+ Object item;
+ item.push_back(Pair("nout", nOut));
+ item.push_back(Pair("hash", solution.first.GetHex()));
+ item.push_back(Pair("time", DateTimeStrFormat(solution.second)));
+
+ results.push_back(item);
+ }
}
-
- return results;
}
+
+ if (results.size() == 0)
+ return false;
+
+ return results;
}
else
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No information available about transaction");
-
- return Value::null;
}
Value getworkex(const Array& params, bool fHelp)
git://git.novaco.in / novacoin.git / commitdiff