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549 lines
22 KiB
549 lines
22 KiB
// Copyright (c) 2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2013 The Bitcoin developers |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#include "rpcserver.h" |
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#include "chainparams.h" |
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#include "init.h" |
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#include "net.h" |
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#include "main.h" |
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#include "miner.h" |
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#include "pow.h" |
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#ifdef ENABLE_WALLET |
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#include "db.h" |
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#include "wallet.h" |
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#endif |
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|
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#include <stdint.h> |
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|
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#include <boost/assign/list_of.hpp> |
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|
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#include "json/json_spirit_utils.h" |
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#include "json/json_spirit_value.h" |
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|
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using namespace json_spirit; |
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using namespace std; |
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// Return average network hashes per second based on the last 'lookup' blocks, |
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// or from the last difficulty change if 'lookup' is nonpositive. |
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// If 'height' is nonnegative, compute the estimate at the time when a given block was found. |
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Value GetNetworkHashPS(int lookup, int height) { |
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CBlockIndex *pb = chainActive.Tip(); |
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if (height >= 0 && height < chainActive.Height()) |
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pb = chainActive[height]; |
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if (pb == NULL || !pb->nHeight) |
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return 0; |
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// If lookup is -1, then use blocks since last difficulty change. |
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if (lookup <= 0) |
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lookup = pb->nHeight % 2016 + 1; |
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|
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// If lookup is larger than chain, then set it to chain length. |
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if (lookup > pb->nHeight) |
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lookup = pb->nHeight; |
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CBlockIndex *pb0 = pb; |
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int64_t minTime = pb0->GetBlockTime(); |
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int64_t maxTime = minTime; |
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for (int i = 0; i < lookup; i++) { |
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pb0 = pb0->pprev; |
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int64_t time = pb0->GetBlockTime(); |
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minTime = std::min(time, minTime); |
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maxTime = std::max(time, maxTime); |
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} |
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// In case there's a situation where minTime == maxTime, we don't want a divide by zero exception. |
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if (minTime == maxTime) |
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return 0; |
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uint256 workDiff = pb->nChainWork - pb0->nChainWork; |
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int64_t timeDiff = maxTime - minTime; |
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return (int64_t)(workDiff.getdouble() / timeDiff); |
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} |
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Value getnetworkhashps(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() > 2) |
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throw runtime_error( |
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"getnetworkhashps ( blocks height )\n" |
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"\nReturns the estimated network hashes per second based on the last n blocks.\n" |
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"Pass in [blocks] to override # of blocks, -1 specifies since last difficulty change.\n" |
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"Pass in [height] to estimate the network speed at the time when a certain block was found.\n" |
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"\nArguments:\n" |
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"1. blocks (numeric, optional, default=120) The number of blocks, or -1 for blocks since last difficulty change.\n" |
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"2. height (numeric, optional, default=-1) To estimate at the time of the given height.\n" |
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"\nResult:\n" |
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"x (numeric) Hashes per second estimated\n" |
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"\nExamples:\n" |
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+ HelpExampleCli("getnetworkhashps", "") |
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+ HelpExampleRpc("getnetworkhashps", "") |
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); |
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return GetNetworkHashPS(params.size() > 0 ? params[0].get_int() : 120, params.size() > 1 ? params[1].get_int() : -1); |
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} |
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#ifdef ENABLE_WALLET |
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Value getgenerate(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 0) |
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throw runtime_error( |
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"getgenerate\n" |
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"\nReturn if the server is set to generate coins or not. The default is false.\n" |
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"It is set with the command line argument -gen (or bitcoin.conf setting gen)\n" |
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"It can also be set with the setgenerate call.\n" |
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"\nResult\n" |
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"true|false (boolean) If the server is set to generate coins or not\n" |
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"\nExamples:\n" |
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+ HelpExampleCli("getgenerate", "") |
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+ HelpExampleRpc("getgenerate", "") |
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); |
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return GetBoolArg("-gen", false); |
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} |
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Value setgenerate(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() < 1 || params.size() > 2) |
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throw runtime_error( |
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"setgenerate generate ( genproclimit )\n" |
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"\nSet 'generate' true or false to turn generation on or off.\n" |
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"Generation is limited to 'genproclimit' processors, -1 is unlimited.\n" |
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"See the getgenerate call for the current setting.\n" |
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"\nArguments:\n" |
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"1. generate (boolean, required) Set to true to turn on generation, off to turn off.\n" |
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"2. genproclimit (numeric, optional) Set the processor limit for when generation is on. Can be -1 for unlimited.\n" |
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" Note: in -regtest mode, genproclimit controls how many blocks are generated immediately.\n" |
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"\nExamples:\n" |
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"\nSet the generation on with a limit of one processor\n" |
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+ HelpExampleCli("setgenerate", "true 1") + |
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"\nCheck the setting\n" |
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+ HelpExampleCli("getgenerate", "") + |
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"\nTurn off generation\n" |
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+ HelpExampleCli("setgenerate", "false") + |
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"\nUsing json rpc\n" |
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+ HelpExampleRpc("setgenerate", "true, 1") |
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); |
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if (pwalletMain == NULL) |
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throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)"); |
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bool fGenerate = true; |
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if (params.size() > 0) |
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fGenerate = params[0].get_bool(); |
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int nGenProcLimit = -1; |
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if (params.size() > 1) |
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{ |
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nGenProcLimit = params[1].get_int(); |
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if (nGenProcLimit == 0) |
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fGenerate = false; |
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} |
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// -regtest mode: don't return until nGenProcLimit blocks are generated |
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if (fGenerate && Params().MineBlocksOnDemand()) |
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{ |
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int nHeightStart = 0; |
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int nHeightEnd = 0; |
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int nHeight = 0; |
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int nGenerate = (nGenProcLimit > 0 ? nGenProcLimit : 1); |
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{ // Don't keep cs_main locked |
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LOCK(cs_main); |
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nHeightStart = chainActive.Height(); |
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nHeight = nHeightStart; |
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nHeightEnd = nHeightStart+nGenerate; |
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} |
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int nHeightLast = -1; |
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while (nHeight < nHeightEnd) |
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{ |
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if (nHeightLast != nHeight) |
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{ |
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nHeightLast = nHeight; |
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GenerateBitcoins(fGenerate, pwalletMain, 1); |
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} |
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MilliSleep(1); |
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{ // Don't keep cs_main locked |
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LOCK(cs_main); |
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nHeight = chainActive.Height(); |
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} |
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} |
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} |
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else // Not -regtest: start generate thread, return immediately |
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{ |
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mapArgs["-gen"] = (fGenerate ? "1" : "0"); |
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mapArgs ["-genproclimit"] = itostr(nGenProcLimit); |
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GenerateBitcoins(fGenerate, pwalletMain, nGenProcLimit); |
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} |
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return Value::null; |
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} |
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Value gethashespersec(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 0) |
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throw runtime_error( |
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"gethashespersec\n" |
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"\nReturns a recent hashes per second performance measurement while generating.\n" |
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"See the getgenerate and setgenerate calls to turn generation on and off.\n" |
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"\nResult:\n" |
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"n (numeric) The recent hashes per second when generation is on (will return 0 if generation is off)\n" |
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"\nExamples:\n" |
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+ HelpExampleCli("gethashespersec", "") |
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+ HelpExampleRpc("gethashespersec", "") |
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); |
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if (GetTimeMillis() - nHPSTimerStart > 8000) |
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return (int64_t)0; |
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return (int64_t)dHashesPerSec; |
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} |
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#endif |
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Value getmininginfo(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 0) |
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throw runtime_error( |
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"getmininginfo\n" |
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"\nReturns a json object containing mining-related information." |
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"\nResult:\n" |
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"{\n" |
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" \"blocks\": nnn, (numeric) The current block\n" |
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" \"currentblocksize\": nnn, (numeric) The last block size\n" |
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" \"currentblocktx\": nnn, (numeric) The last block transaction\n" |
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" \"difficulty\": xxx.xxxxx (numeric) The current difficulty\n" |
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" \"errors\": \"...\" (string) Current errors\n" |
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" \"generate\": true|false (boolean) If the generation is on or off (see getgenerate or setgenerate calls)\n" |
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" \"genproclimit\": n (numeric) The processor limit for generation. -1 if no generation. (see getgenerate or setgenerate calls)\n" |
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" \"hashespersec\": n (numeric) The hashes per second of the generation, or 0 if no generation.\n" |
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" \"pooledtx\": n (numeric) The size of the mem pool\n" |
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" \"testnet\": true|false (boolean) If using testnet or not\n" |
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" \"chain\": \"xxxx\", (string) current network name as defined in BIP70 (main, test, regtest)\n" |
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"}\n" |
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"\nExamples:\n" |
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+ HelpExampleCli("getmininginfo", "") |
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+ HelpExampleRpc("getmininginfo", "") |
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); |
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Object obj; |
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obj.push_back(Pair("blocks", (int)chainActive.Height())); |
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obj.push_back(Pair("currentblocksize", (uint64_t)nLastBlockSize)); |
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obj.push_back(Pair("currentblocktx", (uint64_t)nLastBlockTx)); |
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obj.push_back(Pair("difficulty", (double)GetDifficulty())); |
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obj.push_back(Pair("errors", GetWarnings("statusbar"))); |
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obj.push_back(Pair("genproclimit", (int)GetArg("-genproclimit", -1))); |
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obj.push_back(Pair("networkhashps", getnetworkhashps(params, false))); |
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obj.push_back(Pair("pooledtx", (uint64_t)mempool.size())); |
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obj.push_back(Pair("testnet", Params().NetworkID() == CBaseChainParams::TESTNET)); |
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obj.push_back(Pair("chain", Params().NetworkIDString())); |
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#ifdef ENABLE_WALLET |
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obj.push_back(Pair("generate", getgenerate(params, false))); |
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obj.push_back(Pair("hashespersec", gethashespersec(params, false))); |
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#endif |
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return obj; |
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} |
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Value prioritisetransaction(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 3) |
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throw runtime_error( |
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"prioritisetransaction <txid> <priority delta> <fee delta>\n" |
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"Accepts the transaction into mined blocks at a higher (or lower) priority"); |
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uint256 hash; |
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hash.SetHex(params[0].get_str()); |
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mempool.PrioritiseTransaction(hash, params[0].get_str(), params[1].get_real(), params[2].get_int64()); |
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return true; |
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} |
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Value getblocktemplate(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() > 1) |
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throw runtime_error( |
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"getblocktemplate ( \"jsonrequestobject\" )\n" |
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"\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n" |
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"It returns data needed to construct a block to work on.\n" |
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"See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n" |
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"\nArguments:\n" |
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"1. \"jsonrequestobject\" (string, optional) A json object in the following spec\n" |
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" {\n" |
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" \"mode\":\"template\" (string, optional) This must be set to \"template\" or omitted\n" |
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" \"capabilities\":[ (array, optional) A list of strings\n" |
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" \"support\" (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'\n" |
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" ,...\n" |
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" ]\n" |
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" }\n" |
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"\n" |
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"\nResult:\n" |
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"{\n" |
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" \"version\" : n, (numeric) The block version\n" |
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" \"previousblockhash\" : \"xxxx\", (string) The hash of current highest block\n" |
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" \"transactions\" : [ (array) contents of non-coinbase transactions that should be included in the next block\n" |
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" {\n" |
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" \"data\" : \"xxxx\", (string) transaction data encoded in hexadecimal (byte-for-byte)\n" |
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" \"hash\" : \"xxxx\", (string) hash/id encoded in little-endian hexadecimal\n" |
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" \"depends\" : [ (array) array of numbers \n" |
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" n (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is\n" |
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" ,...\n" |
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" ],\n" |
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" \"fee\": n, (numeric) difference in value between transaction inputs and outputs (in Satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one\n" |
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" \"sigops\" : n, (numeric) total number of SigOps, as counted for purposes of block limits; if key is not present, sigop count is unknown and clients MUST NOT assume there aren't any\n" |
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" \"required\" : true|false (boolean) if provided and true, this transaction must be in the final block\n" |
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" }\n" |
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" ,...\n" |
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" ],\n" |
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" \"coinbaseaux\" : { (json object) data that should be included in the coinbase's scriptSig content\n" |
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" \"flags\" : \"flags\" (string) \n" |
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" },\n" |
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" \"coinbasevalue\" : n, (numeric) maximum allowable input to coinbase transaction, including the generation award and transaction fees (in Satoshis)\n" |
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" \"coinbasetxn\" : { ... }, (json object) information for coinbase transaction\n" |
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" \"target\" : \"xxxx\", (string) The hash target\n" |
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" \"mintime\" : xxx, (numeric) The minimum timestamp appropriate for next block time in seconds since epoch (Jan 1 1970 GMT)\n" |
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" \"mutable\" : [ (array of string) list of ways the block template may be changed \n" |
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" \"value\" (string) A way the block template may be changed, e.g. 'time', 'transactions', 'prevblock'\n" |
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" ,...\n" |
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" ],\n" |
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" \"noncerange\" : \"00000000ffffffff\", (string) A range of valid nonces\n" |
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" \"sigoplimit\" : n, (numeric) limit of sigops in blocks\n" |
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" \"sizelimit\" : n, (numeric) limit of block size\n" |
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" \"curtime\" : ttt, (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)\n" |
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" \"bits\" : \"xxx\", (string) compressed target of next block\n" |
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" \"height\" : n (numeric) The height of the next block\n" |
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"}\n" |
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|
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"\nExamples:\n" |
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+ HelpExampleCli("getblocktemplate", "") |
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+ HelpExampleRpc("getblocktemplate", "") |
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); |
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std::string strMode = "template"; |
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if (params.size() > 0) |
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{ |
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const Object& oparam = params[0].get_obj(); |
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const Value& modeval = find_value(oparam, "mode"); |
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if (modeval.type() == str_type) |
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strMode = modeval.get_str(); |
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else if (modeval.type() == null_type) |
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{ |
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/* Do nothing */ |
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} |
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else |
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode"); |
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} |
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if (strMode != "template") |
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode"); |
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if (vNodes.empty()) |
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throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Bitcoin is not connected!"); |
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if (IsInitialBlockDownload()) |
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throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "Bitcoin is downloading blocks..."); |
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// Update block |
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static unsigned int nTransactionsUpdatedLast; |
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static CBlockIndex* pindexPrev; |
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static int64_t nStart; |
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static CBlockTemplate* pblocktemplate; |
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if (pindexPrev != chainActive.Tip() || |
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(mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5)) |
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{ |
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// Clear pindexPrev so future calls make a new block, despite any failures from here on |
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pindexPrev = NULL; |
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// Store the pindexBest used before CreateNewBlock, to avoid races |
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nTransactionsUpdatedLast = mempool.GetTransactionsUpdated(); |
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CBlockIndex* pindexPrevNew = chainActive.Tip(); |
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nStart = GetTime(); |
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// Create new block |
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if(pblocktemplate) |
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{ |
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delete pblocktemplate; |
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pblocktemplate = NULL; |
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} |
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CScript scriptDummy = CScript() << OP_TRUE; |
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pblocktemplate = CreateNewBlock(scriptDummy); |
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if (!pblocktemplate) |
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throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory"); |
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// Need to update only after we know CreateNewBlock succeeded |
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pindexPrev = pindexPrevNew; |
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} |
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CBlock* pblock = &pblocktemplate->block; // pointer for convenience |
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// Update nTime |
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UpdateTime(*pblock, pindexPrev); |
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pblock->nNonce = 0; |
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Array transactions; |
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map<uint256, int64_t> setTxIndex; |
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int i = 0; |
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BOOST_FOREACH (CTransaction& tx, pblock->vtx) |
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{ |
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uint256 txHash = tx.GetHash(); |
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setTxIndex[txHash] = i++; |
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if (tx.IsCoinBase()) |
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continue; |
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Object entry; |
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CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); |
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ssTx << tx; |
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entry.push_back(Pair("data", HexStr(ssTx.begin(), ssTx.end()))); |
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entry.push_back(Pair("hash", txHash.GetHex())); |
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Array deps; |
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BOOST_FOREACH (const CTxIn &in, tx.vin) |
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{ |
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if (setTxIndex.count(in.prevout.hash)) |
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deps.push_back(setTxIndex[in.prevout.hash]); |
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} |
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entry.push_back(Pair("depends", deps)); |
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int index_in_template = i - 1; |
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entry.push_back(Pair("fee", pblocktemplate->vTxFees[index_in_template])); |
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entry.push_back(Pair("sigops", pblocktemplate->vTxSigOps[index_in_template])); |
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transactions.push_back(entry); |
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} |
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Object aux; |
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aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end()))); |
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uint256 hashTarget = uint256().SetCompact(pblock->nBits); |
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static Array aMutable; |
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if (aMutable.empty()) |
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{ |
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aMutable.push_back("time"); |
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aMutable.push_back("transactions"); |
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aMutable.push_back("prevblock"); |
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} |
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Object result; |
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result.push_back(Pair("version", pblock->nVersion)); |
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result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex())); |
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result.push_back(Pair("transactions", transactions)); |
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result.push_back(Pair("coinbaseaux", aux)); |
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result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0].vout[0].nValue)); |
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result.push_back(Pair("target", hashTarget.GetHex())); |
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result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1)); |
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result.push_back(Pair("mutable", aMutable)); |
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result.push_back(Pair("noncerange", "00000000ffffffff")); |
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result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS)); |
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result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE)); |
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result.push_back(Pair("curtime", (int64_t)pblock->nTime)); |
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result.push_back(Pair("bits", strprintf("%08x", pblock->nBits))); |
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result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); |
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|
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return result; |
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} |
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|
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Value submitblock(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() < 1 || params.size() > 2) |
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throw runtime_error( |
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"submitblock \"hexdata\" ( \"jsonparametersobject\" )\n" |
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"\nAttempts to submit new block to network.\n" |
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"The 'jsonparametersobject' parameter is currently ignored.\n" |
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"See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n" |
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|
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"\nArguments\n" |
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"1. \"hexdata\" (string, required) the hex-encoded block data to submit\n" |
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"2. \"jsonparametersobject\" (string, optional) object of optional parameters\n" |
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" {\n" |
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" \"workid\" : \"id\" (string, optional) if the server provided a workid, it MUST be included with submissions\n" |
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" }\n" |
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"\nResult:\n" |
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"\nExamples:\n" |
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+ HelpExampleCli("submitblock", "\"mydata\"") |
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+ HelpExampleRpc("submitblock", "\"mydata\"") |
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); |
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|
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vector<unsigned char> blockData(ParseHex(params[0].get_str())); |
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CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION); |
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CBlock pblock; |
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try { |
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ssBlock >> pblock; |
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} |
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catch (std::exception &e) { |
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throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed"); |
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} |
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|
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CValidationState state; |
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bool fAccepted = ProcessBlock(state, NULL, &pblock); |
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if (!fAccepted) |
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return "rejected"; // TODO: report validation state |
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|
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return Value::null; |
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} |
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|
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Value estimatefee(const Array& params, bool fHelp) |
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{ |
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if (fHelp || params.size() != 1) |
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throw runtime_error( |
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"estimatefee nblocks\n" |
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"\nEstimates the approximate fee per kilobyte\n" |
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"needed for a transaction to get confirmed\n" |
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"within nblocks blocks.\n" |
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"\nArguments:\n" |
|
"1. nblocks (numeric)\n" |
|
"\nResult:\n" |
|
"n : (numeric) estimated fee-per-kilobyte\n" |
|
"\n" |
|
"-1.0 is returned if not enough transactions and\n" |
|
"blocks have been observed to make an estimate.\n" |
|
"\nExample:\n" |
|
+ HelpExampleCli("estimatefee", "6") |
|
); |
|
|
|
RPCTypeCheck(params, boost::assign::list_of(int_type)); |
|
|
|
int nBlocks = params[0].get_int(); |
|
if (nBlocks < 1) |
|
nBlocks = 1; |
|
|
|
CFeeRate feeRate = mempool.estimateFee(nBlocks); |
|
if (feeRate == CFeeRate(0)) |
|
return -1.0; |
|
|
|
return ValueFromAmount(feeRate.GetFeePerK()); |
|
} |
|
|
|
Value estimatepriority(const Array& params, bool fHelp) |
|
{ |
|
if (fHelp || params.size() != 1) |
|
throw runtime_error( |
|
"estimatepriority nblocks\n" |
|
"\nEstimates the approximate priority\n" |
|
"a zero-fee transaction needs to get confirmed\n" |
|
"within nblocks blocks.\n" |
|
"\nArguments:\n" |
|
"1. nblocks (numeric)\n" |
|
"\nResult:\n" |
|
"n : (numeric) estimated priority\n" |
|
"\n" |
|
"-1.0 is returned if not enough transactions and\n" |
|
"blocks have been observed to make an estimate.\n" |
|
"\nExample:\n" |
|
+ HelpExampleCli("estimatepriority", "6") |
|
); |
|
|
|
RPCTypeCheck(params, boost::assign::list_of(int_type)); |
|
|
|
int nBlocks = params[0].get_int(); |
|
if (nBlocks < 1) |
|
nBlocks = 1; |
|
|
|
return mempool.estimatePriority(nBlocks); |
|
}
|
|
|