be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
213 lines
8.5 KiB
C++
213 lines
8.5 KiB
C++
// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include "core_io.h"
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#include "key_io.h"
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#include "primitives/transaction.h"
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#include "script/script.h"
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#include "script/standard.h"
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#include "serialize.h"
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#include "streams.h"
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#include <univalue.h>
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#include "util.h"
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#include "utilmoneystr.h"
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#include "utilstrencodings.h"
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#include <boost/assign/list_of.hpp>
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#include <boost/foreach.hpp>
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using namespace std;
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string FormatScript(const CScript& script)
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{
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string ret;
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CScript::const_iterator it = script.begin();
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opcodetype op;
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while (it != script.end()) {
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CScript::const_iterator it2 = it;
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vector<unsigned char> vch;
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if (script.GetOp2(it, op, &vch)) {
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if (op == OP_0) {
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ret += "0 ";
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continue;
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} else if ((op >= OP_1 && op <= OP_16) || op == OP_1NEGATE) {
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ret += strprintf("%i ", op - OP_1NEGATE - 1);
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continue;
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} else if (op >= OP_NOP && op <= OP_CHECKMULTISIGVERIFY) {
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string str(GetOpName(op));
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if (str.substr(0, 3) == string("OP_")) {
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ret += str.substr(3, string::npos) + " ";
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continue;
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}
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}
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if (vch.size() > 0) {
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ret += strprintf("0x%x 0x%x ", HexStr(it2, it - vch.size()), HexStr(it - vch.size(), it));
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} else {
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ret += strprintf("0x%x", HexStr(it2, it));
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}
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continue;
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}
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ret += strprintf("0x%x ", HexStr(it2, script.end()));
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break;
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}
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return ret.substr(0, ret.size() - 1);
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}
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const map<unsigned char, string> mapSigHashTypes =
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boost::assign::map_list_of
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(static_cast<unsigned char>(SIGHASH_ALL), string("ALL"))
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(static_cast<unsigned char>(SIGHASH_ALL|SIGHASH_ANYONECANPAY), string("ALL|ANYONECANPAY"))
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(static_cast<unsigned char>(SIGHASH_NONE), string("NONE"))
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(static_cast<unsigned char>(SIGHASH_NONE|SIGHASH_ANYONECANPAY), string("NONE|ANYONECANPAY"))
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(static_cast<unsigned char>(SIGHASH_SINGLE), string("SINGLE"))
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(static_cast<unsigned char>(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY), string("SINGLE|ANYONECANPAY"))
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;
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/**
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* Create the assembly string representation of a CScript object.
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* @param[in] script CScript object to convert into the asm string representation.
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* @param[in] fAttemptSighashDecode Whether to attempt to decode sighash types on data within the script that matches the format
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* of a signature. Only pass true for scripts you believe could contain signatures. For example,
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* pass false, or omit the this argument (defaults to false), for scriptPubKeys.
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*/
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string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode)
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{
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string str;
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opcodetype opcode;
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vector<unsigned char> vch;
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CScript::const_iterator pc = script.begin();
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while (pc < script.end()) {
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if (!str.empty()) {
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str += " ";
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}
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if (!script.GetOp(pc, opcode, vch)) {
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str += "[error]";
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return str;
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}
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if (0 <= opcode && opcode <= OP_PUSHDATA4) {
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if (vch.size() <= static_cast<vector<unsigned char>::size_type>(4)) {
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str += strprintf("%d", CScriptNum(vch, false).getint());
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} else {
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// the IsUnspendable check makes sure not to try to decode OP_RETURN data that may match the format of a signature
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if (fAttemptSighashDecode && !script.IsUnspendable()) {
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string strSigHashDecode;
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// goal: only attempt to decode a defined sighash type from data that looks like a signature within a scriptSig.
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// this won't decode correctly formatted public keys in Pubkey or Multisig scripts due to
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// the restrictions on the pubkey formats (see IsCompressedOrUncompressedPubKey) being incongruous with the
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// checks in CheckSignatureEncoding.
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if (CheckSignatureEncoding(vch, SCRIPT_VERIFY_STRICTENC, NULL)) {
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const unsigned char chSigHashType = vch.back();
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if (mapSigHashTypes.count(chSigHashType)) {
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strSigHashDecode = "[" + mapSigHashTypes.find(chSigHashType)->second + "]";
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vch.pop_back(); // remove the sighash type byte. it will be replaced by the decode.
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}
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}
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str += HexStr(vch) + strSigHashDecode;
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} else {
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str += HexStr(vch);
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}
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}
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} else {
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str += GetOpName(opcode);
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}
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}
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return str;
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}
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string EncodeHexTx(const CTransaction& tx)
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{
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CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
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ssTx << tx;
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return HexStr(ssTx.begin(), ssTx.end());
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}
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void ScriptPubKeyToUniv(const CScript& scriptPubKey,
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UniValue& out, bool fIncludeHex)
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{
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txnouttype type;
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vector<CTxDestination> addresses;
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int nRequired;
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out.pushKV("asm", ScriptToAsmStr(scriptPubKey));
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if (fIncludeHex)
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out.pushKV("hex", HexStr(scriptPubKey.begin(), scriptPubKey.end()));
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if (!ExtractDestinations(scriptPubKey, type, addresses, nRequired)) {
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out.pushKV("type", GetTxnOutputType(type));
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return;
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}
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out.pushKV("reqSigs", nRequired);
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out.pushKV("type", GetTxnOutputType(type));
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UniValue a(UniValue::VARR);
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for (const CTxDestination& addr : addresses) {
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a.push_back(EncodeDestination(addr));
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}
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out.pushKV("addresses", a);
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}
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void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
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{
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entry.pushKV("txid", tx.GetHash().GetHex());
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entry.pushKV("version", tx.nVersion);
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entry.pushKV("locktime", (int64_t)tx.nLockTime);
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UniValue vin(UniValue::VARR);
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BOOST_FOREACH(const CTxIn& txin, tx.vin) {
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UniValue in(UniValue::VOBJ);
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if (tx.IsCoinBase())
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in.pushKV("coinbase", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
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else {
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in.pushKV("txid", txin.prevout.hash.GetHex());
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in.pushKV("vout", (int64_t)txin.prevout.n);
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UniValue o(UniValue::VOBJ);
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o.pushKV("asm", ScriptToAsmStr(txin.scriptSig, true));
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o.pushKV("hex", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
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in.pushKV("scriptSig", o);
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}
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in.pushKV("sequence", (int64_t)txin.nSequence);
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vin.push_back(in);
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}
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entry.pushKV("vin", vin);
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UniValue vout(UniValue::VARR);
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for (unsigned int i = 0; i < tx.vout.size(); i++) {
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const CTxOut& txout = tx.vout[i];
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UniValue out(UniValue::VOBJ);
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UniValue outValue(UniValue::VNUM, FormatMoney(txout.nValue));
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out.pushKV("value", outValue);
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out.pushKV("n", (int64_t)i);
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UniValue o(UniValue::VOBJ);
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ScriptPubKeyToUniv(txout.scriptPubKey, o, true);
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out.pushKV("scriptPubKey", o);
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vout.push_back(out);
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}
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entry.pushKV("vout", vout);
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if (!hashBlock.IsNull())
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entry.pushKV("blockhash", hashBlock.GetHex());
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entry.pushKV("hex", EncodeHexTx(tx)); // the hex-encoded transaction. used the name "hex" to be consistent with the verbose output of "getrawtransaction".
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}
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