chainparams.cpp

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "chainparams.h"

#include "random.h"
#include "util.h"
#include "utilstrencodings.h"

#include <assert.h>

#include <boost/assign/list_of.hpp>

using namespace std;
using namespace boost::assign;

struct SeedSpec6 {
    uint8_t addr[16];
    uint16_t port;
};

#include "chainparamsseeds.h"

/**
 * Main network
 */

//! Convert the pnSeeds6 array into usable address objects.
static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
{
    // It'll only connect to one or two seed nodes because once it connects,
    // it'll get a pile of addresses with newer timestamps.
    // Seed nodes are given a random 'last seen time' of between one and two
    // weeks ago.
    const int64_t nOneWeek = 7*24*60*60;
    for (unsigned int i = 0; i < count; i++)
    {
        struct in6_addr ip;
        memcpy(&ip, data[i].addr, sizeof(ip));
        CAddress addr(CService(ip, data[i].port));
        addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
        vSeedsOut.push_back(addr);
    }
}

/**
 * What makes a good checkpoint block?
 * + Is surrounded by blocks with reasonable timestamps
 *   (no blocks before with a timestamp after, none after with
 *    timestamp before)
 * + Contains no strange transactions
 */
static Checkpoints::MapCheckpoints mapCheckpoints =
        boost::assign::map_list_of
        ( 0, uint256("0x55a9b3b171a6dfc95d59e07fa23736f44cd745f896e86491982ad6d043c58ba6"))
        ( 800000, uint256("0x35d92e51ad6cf189662c332fcdd61c1d90fee7c2914b42fa29d22c271159c066"))
        ;
static const Checkpoints::CCheckpointData data = {
        &mapCheckpoints,
        1510084820, // * UNIX timestamp of last checkpoint block
        1141114,   // * total number of transactions between genesis and last checkpoint
                    //   (the tx=... number in the SetBestChain debug.log lines)
        3600.0     // * estimated number of transactions per day after checkpoint
    };

static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
        boost::assign::map_list_of
        ( 0, uint256("765d9ec322c494d36d36f300c209f13b787b6f67bf978c5b9ab09bc9e10f52b8"))
        ;
static const Checkpoints::CCheckpointData dataTestnet = {
        &mapCheckpointsTestnet,
        1397925814,
        1,
        300
    };

static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
        boost::assign::map_list_of
        ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
        ;
static const Checkpoints::CCheckpointData dataRegtest = {
        &mapCheckpointsRegtest,
        0,
        0,
        0
    };

class CMainParams : public CChainParams {
public:
    CMainParams() {
        networkID = CBaseChainParams::MAIN;
        strNetworkID = "main";
        /** 
         * The message start string is designed to be unlikely to occur in normal data.
         * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
         * a large 4-byte int at any alignment.
         */
        pchMessageStart[0] = 0xaa;
        pchMessageStart[1] = 0xc3;
        pchMessageStart[2] = 0xc6;
        pchMessageStart[3] = 0xab;
        vAlertPubKey = ParseHex("045a8927ef4e11ac24f4e65de016ae415fb3eb7ac0396b2dcf9f8451d96caf58908f8925811dea37f6c5b5789a2b4f78c7a1b5f56f019554061bbd01924612b4a0");
        checkpointPubKey = "04c1e0b0db27b846cd9b8f151904f7edfc2dfaf6f062471f8f86fc23418e0a23f2551e34b02642c79bfeb75755d23d5194243b73318ce35eace6e6042ec399b37c";
        nNeoScryptHeight = 120000;
        nNeoScryptFork = 1414482565;
        nBlockVersionChange = 840000;
        nDefaultPort = 42954;
        bnProofOfWorkLimit = ~uint256(0) >> 20;
        bnNeoScryptSwitch = ~uint256(0) >> 28;
        nEnforceBlockUpgradeMajority = 750;
        nRejectBlockOutdatedMajority = 950;
        nToCheckBlockUpgradeMajority = 1000;
        nMinerThreads = 0;
        nTargetTimespan = 2 * 60; // two weeks
        nTargetSpacing = 2 * 60;
        nMaxTipAge = 24 * 60 * 60;

        const char* pszTimestamp = "1May launch of guncoin";
        CMutableTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 50 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1397923502;
        genesis.nBits    = 0x1e0ffff0;
        genesis.nNonce   = 2085244361;

        hashGenesisBlock = genesis.GetHash();
        assert(hashGenesisBlock == uint256("0x55a9b3b171a6dfc95d59e07fa23736f44cd745f896e86491982ad6d043c58ba6"));
        assert(genesis.hashMerkleRoot == uint256("0x9279661f2031143951417ef97ea70bcd7172f1bff7831c339c97e0e8392a926a"));

        vSeeds.push_back(CDNSSeedData("guncoin.info", "seed.guncoin.info"));
        vSeeds.push_back(CDNSSeedData("guncoin.info", "seed2.guncoin.info"));

        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,39);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,167);
        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();

        convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fAllowMinDifficultyBlocks = false;
        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        fMineBlocksOnDemand = false;
        fSkipProofOfWorkCheck = false;
        fTestnetToBeDeprecatedFieldRPC = false;
    }

    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return data;
    }
};
static CMainParams mainParams;

/**
 * Testnet (v3)
 */
class CTestNetParams : public CMainParams {
public:
    CTestNetParams() {
        networkID = CBaseChainParams::TESTNET;
        strNetworkID = "test";
        pchMessageStart[0] = 0xdd;
        pchMessageStart[1] = 0xbb;
        pchMessageStart[2] = 0xcc;
        pchMessageStart[3] = 0xad;
        vAlertPubKey = ParseHex("04e4f58b6a870d4ac13b35ca00f390c674561fea1c161b0c28b34c22ebb34afa5c8d874d12106c34a06c06d20a32d863079a4162003961a88bae4655ebd6a0440f");
        checkpointPubKey = "04b0c74b4334f0fd96f09070fbc28dc61a7dc1fbe8988ac98321f45fdd8ce8fed848f04ecaa398bfadb51b5f5adf706e9507f403ab5dce3c57bccf6c3a7db7e7a9";
        nNeoScryptHeight = 1;
        nBlockVersionChange = 10;
        nDefaultPort = 52954;
        nEnforceBlockUpgradeMajority = 51;
        nRejectBlockOutdatedMajority = 75;
        nToCheckBlockUpgradeMajority = 100;
        nMinerThreads = 0;
        nTargetTimespan = 2 * 60; //! two weeks
        nTargetSpacing = 2 * 60;
        nMaxTipAge = 0x7fffffff;

        //! Modify the testnet genesis block so the timestamp is valid for a later start.
        genesis.nTime = 1397925814;
        genesis.nNonce = 385915966;
        hashGenesisBlock = genesis.GetHash();
        assert(hashGenesisBlock == uint256("0x765d9ec322c494d36d36f300c209f13b787b6f67bf978c5b9ab09bc9e10f52b8"));

        vFixedSeeds.clear();
        vSeeds.clear();
        vSeeds.push_back(CDNSSeedData("guncoin.info", "testnet-seed1.guncoin.info"));
        vSeeds.push_back(CDNSSeedData("guncoin.info", "testnet-seed2.guncoin.info"));

        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,128);
        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();

        convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fAllowMinDifficultyBlocks = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = false;
        fMineBlocksOnDemand = false;
        fTestnetToBeDeprecatedFieldRPC = true;
    }
    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return dataTestnet;
    }
};
static CTestNetParams testNetParams;

/**
 * Regression test
 */
class CRegTestParams : public CTestNetParams {
public:
    CRegTestParams() {
        networkID = CBaseChainParams::REGTEST;
        strNetworkID = "regtest";
        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0xbf;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0xda;
        nEnforceBlockUpgradeMajority = 750;
        nRejectBlockOutdatedMajority = 950;
        nToCheckBlockUpgradeMajority = 1000;
        nMinerThreads = 1;
        nTargetTimespan = 2 * 60; //! two weeks
        nTargetSpacing = 2 * 60;
        bnProofOfWorkLimit = ~uint256(0) >> 1;
        nMaxTipAge = 24 * 60 * 60;
        genesis.nTime = 1296688602;
        genesis.nBits = 0x207fffff;
        genesis.nNonce = 1;
        hashGenesisBlock = genesis.GetHash();
        nDefaultPort = 18444;
        assert(hashGenesisBlock == uint256("0x2d9964969932dde0b499c5c7c073c7c7df3435e31b00135f5c9088ac5d2e1035"));

        vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
        vSeeds.clear();  //! Regtest mode doesn't have any DNS seeds.

        fRequireRPCPassword = false;
        fMiningRequiresPeers = false;
        fAllowMinDifficultyBlocks = true;
        fDefaultConsistencyChecks = true;
        fRequireStandard = false;
        fMineBlocksOnDemand = true;
        fTestnetToBeDeprecatedFieldRPC = false;
    }
    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return dataRegtest;
    }
};
static CRegTestParams regTestParams;

/**
 * Unit test
 */
class CUnitTestParams : public CMainParams, public CModifiableParams {
public:
    CUnitTestParams() {
        networkID = CBaseChainParams::UNITTEST;
        strNetworkID = "unittest";
        nDefaultPort = 18445;
        vFixedSeeds.clear(); //! Unit test mode doesn't have any fixed seeds.
        vSeeds.clear();  //! Unit test mode doesn't have any DNS seeds.

        fRequireRPCPassword = false;
        fMiningRequiresPeers = false;
        fDefaultConsistencyChecks = true;
        fAllowMinDifficultyBlocks = false;
        fMineBlocksOnDemand = true;
    }

    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        // UnitTest share the same checkpoints as MAIN
        return data;
    }

    //! Published setters to allow changing values in unit test cases
    virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority)  { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; }
    virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority)  { nRejectBlockOutdatedMajority=anRejectBlockOutdatedMajority; }
    virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority)  { nToCheckBlockUpgradeMajority=anToCheckBlockUpgradeMajority; }
    virtual void setDefaultConsistencyChecks(bool afDefaultConsistencyChecks)  { fDefaultConsistencyChecks=afDefaultConsistencyChecks; }
    virtual void setAllowMinDifficultyBlocks(bool afAllowMinDifficultyBlocks) {  fAllowMinDifficultyBlocks=afAllowMinDifficultyBlocks; }
    virtual void setSkipProofOfWorkCheck(bool afSkipProofOfWorkCheck) { fSkipProofOfWorkCheck = afSkipProofOfWorkCheck; }
};
static CUnitTestParams unitTestParams;


static CChainParams *pCurrentParams = 0;

CModifiableParams *ModifiableParams()
{
   assert(pCurrentParams);
   assert(pCurrentParams==&unitTestParams);
   return (CModifiableParams*)&unitTestParams;
}

const CChainParams &Params() {
    assert(pCurrentParams);
    return *pCurrentParams;
}

CChainParams &Params(CBaseChainParams::Network network) {
    switch (network) {
        case CBaseChainParams::MAIN:
            return mainParams;
        case CBaseChainParams::TESTNET:
            return testNetParams;
        case CBaseChainParams::REGTEST:
            return regTestParams;
        case CBaseChainParams::UNITTEST:
            return unitTestParams;
        default:
            assert(false && "Unimplemented network");
            return mainParams;
    }
}

void SelectParams(CBaseChainParams::Network network) {
    SelectBaseParams(network);
    pCurrentParams = &Params(network);
}

bool SelectParamsFromCommandLine()
{
    CBaseChainParams::Network network = NetworkIdFromCommandLine();
    if (network == CBaseChainParams::MAX_NETWORK_TYPES)
        return false;

    SelectParams(network);
    return true;
}