src/rpcmisc.cpp

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 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 "base58.h"
#include "init.h"
#include "main.h"
#include "net.h"
#include "netbase.h"
#include "rpcserver.h"
#include "timedata.h"
#include "util.h"
#ifdef ENABLE_WALLET
#include "wallet.h"
#include "walletdb.h"
#endif

#include <stdint.h>

#include <boost/assign/list_of.hpp>
#include "json/json_spirit_utils.h"
#include "json/json_spirit_value.h"

using namespace boost;
using namespace boost::assign;
using namespace json_spirit;
using namespace std;

/**
 * @note Do not add or change anything in the information returned by this
 * method. `getinfo` exists for backwards-compatibilty only. It combines
 * information from wildly different sources in the program, which is a mess,
 * and is thus planned to be deprecated eventually.
 *
 * Based on the source of the information, new information should be added to:
 * - `getblockchaininfo`,
 * - `getnetworkinfo` or
 * - `getwalletinfo`
 *
 * Or alternatively, create a specific query method for the information.
 **/
Value getinfo(const Array& params, bool fHelp)
{
    if (fHelp || params.size() != 0)
        throw runtime_error(
            "getinfo\n"
            "Returns an object containing various state info.\n"
            "\nResult:\n"
            "{\n"
            "  \"version\": xxxxx,           (numeric) the server version\n"
            "  \"protocolversion\": xxxxx,   (numeric) the protocol version\n"
            "  \"walletversion\": xxxxx,     (numeric) the wallet version\n"
            "  \"balance\": xxxxxxx,         (numeric) the total bitcoin balance of the wallet\n"
            "  \"blocks\": xxxxxx,           (numeric) the current number of blocks processed in the server\n"
            "  \"timeoffset\": xxxxx,        (numeric) the time offset\n"
            "  \"connections\": xxxxx,       (numeric) the number of connections\n"
            "  \"proxy\": \"host:port\",     (string, optional) the proxy used by the server\n"
            "  \"difficulty\": xxxxxx,       (numeric) the current difficulty\n"
            "  \"testnet\": true|false,      (boolean) if the server is using testnet or not\n"
            "  \"keypoololdest\": xxxxxx,    (numeric) the timestamp (seconds since GMT epoch) of the oldest pre-generated key in the key pool\n"
            "  \"keypoolsize\": xxxx,        (numeric) how many new keys are pre-generated\n"
            "  \"unlocked_until\": ttt,      (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
            "  \"paytxfee\": x.xxxx,         (numeric) the transaction fee set in btc/kb\n"
            "  \"relayfee\": x.xxxx,         (numeric) minimum relay fee for non-free transactions in btc/kb\n"
            "  \"errors\": \"...\"           (string) any error messages\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("getinfo", "")
            + HelpExampleRpc("getinfo", "")
        );

    proxyType proxy;
    GetProxy(NET_IPV4, proxy);

    Object obj;
    obj.push_back(Pair("version",       (int)CLIENT_VERSION));
    obj.push_back(Pair("protocolversion",(int)PROTOCOL_VERSION));
#ifdef ENABLE_WALLET
    if (pwalletMain) {
        obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
        obj.push_back(Pair("balance",       ValueFromAmount(pwalletMain->GetBalance())));
    }
#endif
    obj.push_back(Pair("blocks",        (int)chainActive.Height()));
    obj.push_back(Pair("timeoffset",    GetTimeOffset()));
    obj.push_back(Pair("connections",   (int)vNodes.size()));
    obj.push_back(Pair("proxy",         (proxy.IsValid() ? proxy.ToStringIPPort() : string())));
    obj.push_back(Pair("difficulty",    (double)GetDifficulty()));
    obj.push_back(Pair("testnet",       Params().NetworkID() == CBaseChainParams::TESTNET));
#ifdef ENABLE_WALLET
    if (pwalletMain) {
        obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
        obj.push_back(Pair("keypoolsize",   (int)pwalletMain->GetKeyPoolSize()));
    }
    if (pwalletMain && pwalletMain->IsCrypted())
        obj.push_back(Pair("unlocked_until", nWalletUnlockTime));
    obj.push_back(Pair("paytxfee",      ValueFromAmount(payTxFee.GetFeePerK())));
#endif
    obj.push_back(Pair("relayfee",      ValueFromAmount(::minRelayTxFee.GetFeePerK())));
    obj.push_back(Pair("errors",        GetWarnings("statusbar")));
    return obj;
}

#ifdef ENABLE_WALLET
class DescribeAddressVisitor : public boost::static_visitor<Object>
{
private:
    isminetype mine;

public:
    DescribeAddressVisitor(isminetype mineIn) : mine(mineIn) {}

    Object operator()(const CNoDestination &dest) const { return Object(); }

    Object operator()(const CKeyID &keyID) const {
        Object obj;
        CPubKey vchPubKey;
        obj.push_back(Pair("isscript", false));
        if (mine == ISMINE_SPENDABLE) {
            pwalletMain->GetPubKey(keyID, vchPubKey);
            obj.push_back(Pair("pubkey", HexStr(vchPubKey)));
            obj.push_back(Pair("iscompressed", vchPubKey.IsCompressed()));
        }
        return obj;
    }

    Object operator()(const CScriptID &scriptID) const {
        Object obj;
        obj.push_back(Pair("isscript", true));
        if (mine != ISMINE_NO) {
            CScript subscript;
            pwalletMain->GetCScript(scriptID, subscript);
            std::vector<CTxDestination> addresses;
            txnouttype whichType;
            int nRequired;
            ExtractDestinations(subscript, whichType, addresses, nRequired);
            obj.push_back(Pair("script", GetTxnOutputType(whichType)));
            obj.push_back(Pair("hex", HexStr(subscript.begin(), subscript.end())));
            Array a;
            BOOST_FOREACH(const CTxDestination& addr, addresses)
                a.push_back(CBitcoinAddress(addr).ToString());
            obj.push_back(Pair("addresses", a));
            if (whichType == TX_MULTISIG)
                obj.push_back(Pair("sigsrequired", nRequired));
        }
        return obj;
    }
};
#endif

Value validateaddress(const Array& params, bool fHelp)
{
    if (fHelp || params.size() != 1)
        throw runtime_error(
            "validateaddress \"bitcoinaddress\"\n"
            "\nReturn information about the given bitcoin address.\n"
            "\nArguments:\n"
            "1. \"bitcoinaddress\"     (string, required) The bitcoin address to validate\n"
            "\nResult:\n"
            "{\n"
            "  \"isvalid\" : true|false,         (boolean) If the address is valid or not. If not, this is the only property returned.\n"
            "  \"address\" : \"bitcoinaddress\", (string) The bitcoin address validated\n"
            "  \"ismine\" : true|false,          (boolean) If the address is yours or not\n"
            "  \"isscript\" : true|false,        (boolean) If the key is a script\n"
            "  \"pubkey\" : \"publickeyhex\",    (string) The hex value of the raw public key\n"
            "  \"iscompressed\" : true|false,    (boolean) If the address is compressed\n"
            "  \"account\" : \"account\"         (string) The account associated with the address, \"\" is the default account\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
            + HelpExampleRpc("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
        );

    CBitcoinAddress address(params[0].get_str());
    bool isValid = address.IsValid();

    Object ret;
    ret.push_back(Pair("isvalid", isValid));
    if (isValid)
    {
        CTxDestination dest = address.Get();
        string currentAddress = address.ToString();
        ret.push_back(Pair("address", currentAddress));
#ifdef ENABLE_WALLET
        isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
        ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
        if (mine != ISMINE_NO) {
            ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
            Object detail = boost::apply_visitor(DescribeAddressVisitor(mine), dest);
            ret.insert(ret.end(), detail.begin(), detail.end());
        }
        if (pwalletMain && pwalletMain->mapAddressBook.count(dest))
            ret.push_back(Pair("account", pwalletMain->mapAddressBook[dest].name));
#endif
    }
    return ret;
}

//
// Used by addmultisigaddress / createmultisig:
//
CScript _createmultisig_redeemScript(const Array& params)
{
    int nRequired = params[0].get_int();
    const Array& keys = params[1].get_array();

    // Gather public keys
    if (nRequired < 1)
        throw runtime_error("a multisignature address must require at least one key to redeem");
    if ((int)keys.size() < nRequired)
        throw runtime_error(
            strprintf("not enough keys supplied "
                      "(got %u keys, but need at least %d to redeem)", keys.size(), nRequired));
    std::vector<CPubKey> pubkeys;
    pubkeys.resize(keys.size());
    for (unsigned int i = 0; i < keys.size(); i++)
    {
        const std::string& ks = keys[i].get_str();
#ifdef ENABLE_WALLET
        // Case 1: Bitcoin address and we have full public key:
        CBitcoinAddress address(ks);
        if (pwalletMain && address.IsValid())
        {
            CKeyID keyID;
            if (!address.GetKeyID(keyID))
                throw runtime_error(
                    strprintf("%s does not refer to a key",ks));
            CPubKey vchPubKey;
            if (!pwalletMain->GetPubKey(keyID, vchPubKey))
                throw runtime_error(
                    strprintf("no full public key for address %s",ks));
            if (!vchPubKey.IsFullyValid())
                throw runtime_error(" Invalid public key: "+ks);
            pubkeys[i] = vchPubKey;
        }

        // Case 2: hex public key
        else
#endif
        if (IsHex(ks))
        {
            CPubKey vchPubKey(ParseHex(ks));
            if (!vchPubKey.IsFullyValid())
                throw runtime_error(" Invalid public key: "+ks);
            pubkeys[i] = vchPubKey;
        }
        else
        {
            throw runtime_error(" Invalid public key: "+ks);
        }
    }
    CScript result;
    result.SetMultisig(nRequired, pubkeys);

    if (result.size() > MAX_SCRIPT_ELEMENT_SIZE)
        throw runtime_error(
                strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE));

    return result;
}

Value createmultisig(const Array& params, bool fHelp)
{
    if (fHelp || params.size() < 2 || params.size() > 2)
    {
        string msg = "createmultisig nrequired [\"key\",...]\n"
            "\nCreates a multi-signature address with n signature of m keys required.\n"
            "It returns a json object with the address and redeemScript.\n"

            "\nArguments:\n"
            "1. nrequired      (numeric, required) The number of required signatures out of the n keys or addresses.\n"
            "2. \"keys\"       (string, required) A json array of keys which are bitcoin addresses or hex-encoded public keys\n"
            "     [\n"
            "       \"key\"    (string) bitcoin address or hex-encoded public key\n"
            "       ,...\n"
            "     ]\n"

            "\nResult:\n"
            "{\n"
            "  \"address\":\"multisigaddress\",  (string) The value of the new multisig address.\n"
            "  \"redeemScript\":\"script\"       (string) The string value of the hex-encoded redemption script.\n"
            "}\n"

            "\nExamples:\n"
            "\nCreate a multisig address from 2 addresses\n"
            + HelpExampleCli("createmultisig", "2 \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("createmultisig", "2, \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")
        ;
        throw runtime_error(msg);
    }

    // Construct using pay-to-script-hash:
    CScript inner = _createmultisig_redeemScript(params);
    CScriptID innerID = inner.GetID();
    CBitcoinAddress address(innerID);

    Object result;
    result.push_back(Pair("address", address.ToString()));
    result.push_back(Pair("redeemScript", HexStr(inner.begin(), inner.end())));

    return result;
}

Value verifymessage(const Array& params, bool fHelp)
{
    if (fHelp || params.size() != 3)
        throw runtime_error(
            "verifymessage \"bitcoinaddress\" \"signature\" \"message\"\n"
            "\nVerify a signed message\n"
            "\nArguments:\n"
            "1. \"bitcoinaddress\"  (string, required) The bitcoin address to use for the signature.\n"
            "2. \"signature\"       (string, required) The signature provided by the signer in base 64 encoding (see signmessage).\n"
            "3. \"message\"         (string, required) The message that was signed.\n"
            "\nResult:\n"
            "true|false   (boolean) If the signature is verified or not.\n"
            "\nExamples:\n"
            "\nUnlock the wallet for 30 seconds\n"
            + HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
            "\nCreate the signature\n"
            + HelpExampleCli("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\" \"my message\"") +
            "\nVerify the signature\n"
            + HelpExampleCli("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\" \"signature\" \"my message\"") +
            "\nAs json rpc\n"
            + HelpExampleRpc("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", \"signature\", \"my message\"")
        );

    string strAddress  = params[0].get_str();
    string strSign     = params[1].get_str();
    string strMessage  = params[2].get_str();

    CBitcoinAddress addr(strAddress);
    if (!addr.IsValid())
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid address");

    CKeyID keyID;
    if (!addr.GetKeyID(keyID))
        throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");

    bool fInvalid = false;
    vector<unsigned char> vchSig = DecodeBase64(strSign.c_str(), &fInvalid);

    if (fInvalid)
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Malformed base64 encoding");

    CHashWriter ss(SER_GETHASH, 0);
    ss << strMessageMagic;
    ss << strMessage;

    CPubKey pubkey;
    if (!pubkey.RecoverCompact(ss.GetHash(), vchSig))
        return false;

    return (pubkey.GetID() == keyID);
}
Commit	Line	Data
	1	// Copyright (c) 2010 Satoshi Nakamoto
	2	// Copyright (c) 2009-2014 The Bitcoin developers
	3	// Distributed under the MIT/X11 software license, see the accompanying
	4	// file COPYING or http://www.opensource.org/licenses/mit-license.php.
	5
	6	#include "base58.h"
	7	#include "init.h"
	8	#include "main.h"
	9	#include "net.h"
	10	#include "netbase.h"
	11	#include "rpcserver.h"
	12	#include "timedata.h"
	13	#include "util.h"
	14	#ifdef ENABLE_WALLET
	15	#include "wallet.h"
	16	#include "walletdb.h"
	17	#endif
	18
	19	#include <stdint.h>
	20
	21	#include <boost/assign/list_of.hpp>
	22	#include "json/json_spirit_utils.h"
	23	#include "json/json_spirit_value.h"
	24
	25	using namespace boost;
	26	using namespace boost::assign;
	27	using namespace json_spirit;
	28	using namespace std;
	29
	30	/**
	31	* @note Do not add or change anything in the information returned by this
	32	* method. `getinfo` exists for backwards-compatibilty only. It combines
	33	* information from wildly different sources in the program, which is a mess,
	34	* and is thus planned to be deprecated eventually.
	35	*
	36	* Based on the source of the information, new information should be added to:
	37	* - `getblockchaininfo`,
	38	* - `getnetworkinfo` or
	39	* - `getwalletinfo`
	40	*
	41	* Or alternatively, create a specific query method for the information.
	42	**/
	43	Value getinfo(const Array& params, bool fHelp)
	44	{
	45	if (fHelp \|\| params.size() != 0)
	46	throw runtime_error(
	47	"getinfo\n"
	48	"Returns an object containing various state info.\n"
	49	"\nResult:\n"
	50	"{\n"
	51	" \"version\": xxxxx, (numeric) the server version\n"
	52	" \"protocolversion\": xxxxx, (numeric) the protocol version\n"
	53	" \"walletversion\": xxxxx, (numeric) the wallet version\n"
	54	" \"balance\": xxxxxxx, (numeric) the total bitcoin balance of the wallet\n"
	55	" \"blocks\": xxxxxx, (numeric) the current number of blocks processed in the server\n"
	56	" \"timeoffset\": xxxxx, (numeric) the time offset\n"
	57	" \"connections\": xxxxx, (numeric) the number of connections\n"
	58	" \"proxy\": \"host:port\", (string, optional) the proxy used by the server\n"
	59	" \"difficulty\": xxxxxx, (numeric) the current difficulty\n"
	60	" \"testnet\": true\|false, (boolean) if the server is using testnet or not\n"
	61	" \"keypoololdest\": xxxxxx, (numeric) the timestamp (seconds since GMT epoch) of the oldest pre-generated key in the key pool\n"
	62	" \"keypoolsize\": xxxx, (numeric) how many new keys are pre-generated\n"
	63	" \"unlocked_until\": ttt, (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
	64	" \"paytxfee\": x.xxxx, (numeric) the transaction fee set in btc/kb\n"
	65	" \"relayfee\": x.xxxx, (numeric) minimum relay fee for non-free transactions in btc/kb\n"
	66	" \"errors\": \"...\" (string) any error messages\n"
	67	"}\n"
	68	"\nExamples:\n"
	69	+ HelpExampleCli("getinfo", "")
	70	+ HelpExampleRpc("getinfo", "")
	71	);
	72
	73	proxyType proxy;
	74	GetProxy(NET_IPV4, proxy);
	75
	76	Object obj;
	77	obj.push_back(Pair("version", (int)CLIENT_VERSION));
	78	obj.push_back(Pair("protocolversion",(int)PROTOCOL_VERSION));
	79	#ifdef ENABLE_WALLET
	80	if (pwalletMain) {
	81	obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
	82	obj.push_back(Pair("balance", ValueFromAmount(pwalletMain->GetBalance())));
	83	}
	84	#endif
	85	obj.push_back(Pair("blocks", (int)chainActive.Height()));
	86	obj.push_back(Pair("timeoffset", GetTimeOffset()));
	87	obj.push_back(Pair("connections", (int)vNodes.size()));
	88	obj.push_back(Pair("proxy", (proxy.IsValid() ? proxy.ToStringIPPort() : string())));
	89	obj.push_back(Pair("difficulty", (double)GetDifficulty()));
	90	obj.push_back(Pair("testnet", Params().NetworkID() == CBaseChainParams::TESTNET));
	91	#ifdef ENABLE_WALLET
	92	if (pwalletMain) {
	93	obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
	94	obj.push_back(Pair("keypoolsize", (int)pwalletMain->GetKeyPoolSize()));
	95	}
	96	if (pwalletMain && pwalletMain->IsCrypted())
	97	obj.push_back(Pair("unlocked_until", nWalletUnlockTime));
	98	obj.push_back(Pair("paytxfee", ValueFromAmount(payTxFee.GetFeePerK())));
	99	#endif
	100	obj.push_back(Pair("relayfee", ValueFromAmount(::minRelayTxFee.GetFeePerK())));
	101	obj.push_back(Pair("errors", GetWarnings("statusbar")));
	102	return obj;
	103	}
	104
	105	#ifdef ENABLE_WALLET
	106	class DescribeAddressVisitor : public boost::static_visitor<Object>
	107	{
	108	private:
	109	isminetype mine;
	110
	111	public:
	112	DescribeAddressVisitor(isminetype mineIn) : mine(mineIn) {}
	113
	114	Object operator()(const CNoDestination &dest) const { return Object(); }
	115
	116	Object operator()(const CKeyID &keyID) const {
	117	Object obj;
	118	CPubKey vchPubKey;
	119	obj.push_back(Pair("isscript", false));
	120	if (mine == ISMINE_SPENDABLE) {
	121	pwalletMain->GetPubKey(keyID, vchPubKey);
	122	obj.push_back(Pair("pubkey", HexStr(vchPubKey)));
	123	obj.push_back(Pair("iscompressed", vchPubKey.IsCompressed()));
	124	}
	125	return obj;
	126	}
	127
	128	Object operator()(const CScriptID &scriptID) const {
	129	Object obj;
	130	obj.push_back(Pair("isscript", true));
	131	if (mine != ISMINE_NO) {
	132	CScript subscript;
	133	pwalletMain->GetCScript(scriptID, subscript);
	134	std::vector<CTxDestination> addresses;
	135	txnouttype whichType;
	136	int nRequired;
	137	ExtractDestinations(subscript, whichType, addresses, nRequired);
	138	obj.push_back(Pair("script", GetTxnOutputType(whichType)));
	139	obj.push_back(Pair("hex", HexStr(subscript.begin(), subscript.end())));
	140	Array a;
	141	BOOST_FOREACH(const CTxDestination& addr, addresses)
	142	a.push_back(CBitcoinAddress(addr).ToString());
	143	obj.push_back(Pair("addresses", a));
	144	if (whichType == TX_MULTISIG)
	145	obj.push_back(Pair("sigsrequired", nRequired));
	146	}
	147	return obj;
	148	}
	149	};
	150	#endif
	151
	152	Value validateaddress(const Array& params, bool fHelp)
	153	{
	154	if (fHelp \|\| params.size() != 1)
	155	throw runtime_error(
	156	"validateaddress \"bitcoinaddress\"\n"
	157	"\nReturn information about the given bitcoin address.\n"
	158	"\nArguments:\n"
	159	"1. \"bitcoinaddress\" (string, required) The bitcoin address to validate\n"
	160	"\nResult:\n"
	161	"{\n"
	162	" \"isvalid\" : true\|false, (boolean) If the address is valid or not. If not, this is the only property returned.\n"
	163	" \"address\" : \"bitcoinaddress\", (string) The bitcoin address validated\n"
	164	" \"ismine\" : true\|false, (boolean) If the address is yours or not\n"
	165	" \"isscript\" : true\|false, (boolean) If the key is a script\n"
	166	" \"pubkey\" : \"publickeyhex\", (string) The hex value of the raw public key\n"
	167	" \"iscompressed\" : true\|false, (boolean) If the address is compressed\n"
	168	" \"account\" : \"account\" (string) The account associated with the address, \"\" is the default account\n"
	169	"}\n"
	170	"\nExamples:\n"
	171	+ HelpExampleCli("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
	172	+ HelpExampleRpc("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
	173	);
	174
	175	CBitcoinAddress address(params[0].get_str());
	176	bool isValid = address.IsValid();
	177
	178	Object ret;
	179	ret.push_back(Pair("isvalid", isValid));
	180	if (isValid)
	181	{
	182	CTxDestination dest = address.Get();
	183	string currentAddress = address.ToString();
	184	ret.push_back(Pair("address", currentAddress));
	185	#ifdef ENABLE_WALLET
	186	isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
	187	ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
	188	if (mine != ISMINE_NO) {
	189	ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
	190	Object detail = boost::apply_visitor(DescribeAddressVisitor(mine), dest);
	191	ret.insert(ret.end(), detail.begin(), detail.end());
	192	}
	193	if (pwalletMain && pwalletMain->mapAddressBook.count(dest))
	194	ret.push_back(Pair("account", pwalletMain->mapAddressBook[dest].name));
	195	#endif
	196	}
	197	return ret;
	198	}
	199
	200	//
	201	// Used by addmultisigaddress / createmultisig:
	202	//
	203	CScript _createmultisig_redeemScript(const Array& params)
	204	{
	205	int nRequired = params[0].get_int();
	206	const Array& keys = params[1].get_array();
	207
	208	// Gather public keys
	209	if (nRequired < 1)
	210	throw runtime_error("a multisignature address must require at least one key to redeem");
	211	if ((int)keys.size() < nRequired)
	212	throw runtime_error(
	213	strprintf("not enough keys supplied "
	214	"(got %u keys, but need at least %d to redeem)", keys.size(), nRequired));
	215	std::vector<CPubKey> pubkeys;
	216	pubkeys.resize(keys.size());
	217	for (unsigned int i = 0; i < keys.size(); i++)
	218	{
	219	const std::string& ks = keys[i].get_str();
	220	#ifdef ENABLE_WALLET
	221	// Case 1: Bitcoin address and we have full public key:
	222	CBitcoinAddress address(ks);
	223	if (pwalletMain && address.IsValid())
	224	{
	225	CKeyID keyID;
	226	if (!address.GetKeyID(keyID))
	227	throw runtime_error(
	228	strprintf("%s does not refer to a key",ks));
	229	CPubKey vchPubKey;
	230	if (!pwalletMain->GetPubKey(keyID, vchPubKey))
	231	throw runtime_error(
	232	strprintf("no full public key for address %s",ks));
	233	if (!vchPubKey.IsFullyValid())
	234	throw runtime_error(" Invalid public key: "+ks);
	235	pubkeys[i] = vchPubKey;
	236	}
	237
	238	// Case 2: hex public key
	239	else
	240	#endif
	241	if (IsHex(ks))
	242	{
	243	CPubKey vchPubKey(ParseHex(ks));
	244	if (!vchPubKey.IsFullyValid())
	245	throw runtime_error(" Invalid public key: "+ks);
	246	pubkeys[i] = vchPubKey;
	247	}
	248	else
	249	{
	250	throw runtime_error(" Invalid public key: "+ks);
	251	}
	252	}
	253	CScript result;
	254	result.SetMultisig(nRequired, pubkeys);
	255
	256	if (result.size() > MAX_SCRIPT_ELEMENT_SIZE)
	257	throw runtime_error(
	258	strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE));
	259
	260	return result;
	261	}
	262
	263	Value createmultisig(const Array& params, bool fHelp)
	264	{
	265	if (fHelp \|\| params.size() < 2 \|\| params.size() > 2)
	266	{
	267	string msg = "createmultisig nrequired [\"key\",...]\n"
	268	"\nCreates a multi-signature address with n signature of m keys required.\n"
	269	"It returns a json object with the address and redeemScript.\n"
	270
	271	"\nArguments:\n"
	272	"1. nrequired (numeric, required) The number of required signatures out of the n keys or addresses.\n"
	273	"2. \"keys\" (string, required) A json array of keys which are bitcoin addresses or hex-encoded public keys\n"
	274	" [\n"
	275	" \"key\" (string) bitcoin address or hex-encoded public key\n"
	276	" ,...\n"
	277	" ]\n"
	278
	279	"\nResult:\n"
	280	"{\n"
	281	" \"address\":\"multisigaddress\", (string) The value of the new multisig address.\n"
	282	" \"redeemScript\":\"script\" (string) The string value of the hex-encoded redemption script.\n"
	283	"}\n"
	284
	285	"\nExamples:\n"
	286	"\nCreate a multisig address from 2 addresses\n"
	287	+ HelpExampleCli("createmultisig", "2 \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"") +
	288	"\nAs a json rpc call\n"
	289	+ HelpExampleRpc("createmultisig", "2, \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")
	290	;
	291	throw runtime_error(msg);
	292	}
	293
	294	// Construct using pay-to-script-hash:
	295	CScript inner = _createmultisig_redeemScript(params);
	296	CScriptID innerID = inner.GetID();
	297	CBitcoinAddress address(innerID);
	298
	299	Object result;
	300	result.push_back(Pair("address", address.ToString()));
	301	result.push_back(Pair("redeemScript", HexStr(inner.begin(), inner.end())));
	302
	303	return result;
	304	}
	305
	306	Value verifymessage(const Array& params, bool fHelp)
	307	{
	308	if (fHelp \|\| params.size() != 3)
	309	throw runtime_error(
	310	"verifymessage \"bitcoinaddress\" \"signature\" \"message\"\n"
	311	"\nVerify a signed message\n"
	312	"\nArguments:\n"
	313	"1. \"bitcoinaddress\" (string, required) The bitcoin address to use for the signature.\n"
	314	"2. \"signature\" (string, required) The signature provided by the signer in base 64 encoding (see signmessage).\n"
	315	"3. \"message\" (string, required) The message that was signed.\n"
	316	"\nResult:\n"
	317	"true\|false (boolean) If the signature is verified or not.\n"
	318	"\nExamples:\n"
	319	"\nUnlock the wallet for 30 seconds\n"
	320	+ HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
	321	"\nCreate the signature\n"
	322	+ HelpExampleCli("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\" \"my message\"") +
	323	"\nVerify the signature\n"
	324	+ HelpExampleCli("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\" \"signature\" \"my message\"") +
	325	"\nAs json rpc\n"
	326	+ HelpExampleRpc("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", \"signature\", \"my message\"")
	327	);
	328
	329	string strAddress = params[0].get_str();
	330	string strSign = params[1].get_str();
	331	string strMessage = params[2].get_str();
	332
	333	CBitcoinAddress addr(strAddress);
	334	if (!addr.IsValid())
	335	throw JSONRPCError(RPC_TYPE_ERROR, "Invalid address");
	336
	337	CKeyID keyID;
	338	if (!addr.GetKeyID(keyID))
	339	throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
	340
	341	bool fInvalid = false;
	342	vector<unsigned char> vchSig = DecodeBase64(strSign.c_str(), &fInvalid);
	343
	344	if (fInvalid)
	345	throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Malformed base64 encoding");
	346
	347	CHashWriter ss(SER_GETHASH, 0);
	348	ss << strMessageMagic;
	349	ss << strMessage;
	350
	351	CPubKey pubkey;
	352	if (!pubkey.RecoverCompact(ss.GetHash(), vchSig))
	353	return false;
	354
	355	return (pubkey.GetID() == keyID);
	356	}