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203 lines
7.9 KiB
203 lines
7.9 KiB
// Copyright (c) 2009-2016 The Bitcoin Core developers |
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// Distributed under the MIT 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 "core_io.h" |
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#include "base58.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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std::string FormatScript(const CScript& script) |
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{ |
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std::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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std::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_NOP10) { |
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std::string str(GetOpName(op)); |
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if (str.substr(0, 3) == std::string("OP_")) { |
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ret += str.substr(3, std::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 std::map<unsigned char, std::string> mapSigHashTypes = |
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boost::assign::map_list_of |
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(static_cast<unsigned char>(SIGHASH_ALL), std::string("ALL")) |
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(static_cast<unsigned char>(SIGHASH_ALL|SIGHASH_ANYONECANPAY), std::string("ALL|ANYONECANPAY")) |
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(static_cast<unsigned char>(SIGHASH_NONE), std::string("NONE")) |
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(static_cast<unsigned char>(SIGHASH_NONE|SIGHASH_ANYONECANPAY), std::string("NONE|ANYONECANPAY")) |
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(static_cast<unsigned char>(SIGHASH_SINGLE), std::string("SINGLE")) |
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(static_cast<unsigned char>(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY), std::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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std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode) |
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{ |
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std::string str; |
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opcodetype opcode; |
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std::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<std::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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std::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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std::string EncodeHexTx(const CTransaction& tx, const int serialFlags) |
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{ |
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CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION | serialFlags); |
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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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std::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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BOOST_FOREACH(const CTxDestination& addr, addresses) |
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a.push_back(CBitcoinAddress(addr).ToString()); |
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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("hash", tx.GetWitnessHash().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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for (unsigned int i = 0; i < tx.vin.size(); i++) { |
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const CTxIn& txin = tx.vin[i]; |
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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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if (!tx.vin[i].scriptWitness.IsNull()) { |
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UniValue txinwitness(UniValue::VARR); |
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for (const auto& item : tx.vin[i].scriptWitness.stack) { |
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txinwitness.push_back(HexStr(item.begin(), item.end())); |
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} |
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in.pushKV("txinwitness", txinwitness); |
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} |
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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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