Line data    Source code

       1             : // Copyright (c) 2009-2021 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <core_io.h>
       6             : 
       7             : #include <consensus/amount.h>
       8             : #include <consensus/validation.h>
       9             : #include <key_io.h>
      10             : #include <primitives/transaction.h>
      11             : #include <script/descriptor.h>
      12             : #include <script/script.h>
      13             : #include <script/standard.h>
      14             : #include <serialize.h>
      15             : #include <streams.h>
      16             : #include <undo.h>
      17             : #include <univalue.h>
      18             : #include <util/check.h>
      19             : #include <util/strencodings.h>
      20             : #include <util/system.h>
      21             : 
      22             : #include <index/spentindex.h>
      23             : 
      24             : #include <evo/assetlocktx.h>
      25             : #include <evo/cbtx.h>
      26             : #include <evo/mnhftx.h>
      27             : #include <evo/providertx.h>
      28             : #include <evo/specialtx.h>
      29             : #include <llmq/commitment.h>
      30             : 
      31             : #include <map>
      32             : #include <string>
      33             : #include <vector>
      34             : 
      35          65 : UniValue ValueFromAmount(const CAmount amount)
      36             : {
      37             :     static_assert(COIN > 1);
      38          65 :     int64_t quotient = amount / COIN;
      39          65 :     int64_t remainder = amount % COIN;
      40          65 :     if (amount < 0) {
      41           6 :         quotient = -quotient;
      42           6 :         remainder = -remainder;
      43           6 :     }
      44          65 :     return UniValue(UniValue::VNUM,
      45          65 :             strprintf("%s%d.%08d", amount < 0 ? "-" : "", quotient, remainder));
      46           0 : }
      47             : 
      48         212 : std::string FormatScript(const CScript& script)
      49             : {
      50         212 :     std::string ret;
      51         212 :     CScript::const_iterator it = script.begin();
      52             :     opcodetype op;
      53         664 :     while (it != script.end()) {
      54         876 :         CScript::const_iterator it2 = it;
      55         876 :         std::vector<unsigned char> vch;
      56         876 :         if (script.GetOp(it, op, vch)) {
      57         558 :             if (op == OP_0) {
      58          58 :                 ret += "0 ";
      59          58 :                 continue;
      60         500 :             } else if ((op >= OP_1 && op <= OP_16) || op == OP_1NEGATE) {
      61         394 :                 ret += strprintf("%i ", op - OP_1NEGATE - 1);
      62          76 :                 continue;
      63         424 :             } else if (op >= OP_NOP && op <= OP_NOP10) {
      64         135 :                 std::string str(GetOpName(op));
      65         135 :                 if (str.substr(0, 3) == std::string("OP_")) {
      66         135 :                     ret += str.substr(3, std::string::npos) + " ";
      67         135 :                     continue;
      68             :                 }
      69         135 :             }
      70         289 :             if (vch.size() > 0) {
      71         530 :                 ret += strprintf("0x%x 0x%x ", HexStr(std::vector<uint8_t>(it2, it - vch.size())),
      72         265 :                                                HexStr(std::vector<uint8_t>(it - vch.size(), it)));
      73         265 :             } else {
      74          24 :                 ret += strprintf("0x%x ", HexStr(std::vector<uint8_t>(it2, it)));
      75             :             }
      76         289 :             continue;
      77             :         }
      78           0 :         ret += strprintf("0x%x ", HexStr(std::vector<uint8_t>(it2, script.end())));
      79           0 :         break;
      80         558 :     }
      81         212 :     return ret.substr(0, ret.empty() ? ret.npos : ret.size() - 1);
      82         954 : }
      83             : 
      84         218 : const std::map<unsigned char, std::string> mapSigHashTypes = {
      85         218 :     {static_cast<unsigned char>(SIGHASH_ALL), std::string("ALL")},
      86         218 :     {static_cast<unsigned char>(SIGHASH_ALL|SIGHASH_ANYONECANPAY), std::string("ALL|ANYONECANPAY")},
      87         218 :     {static_cast<unsigned char>(SIGHASH_NONE), std::string("NONE")},
      88         218 :     {static_cast<unsigned char>(SIGHASH_NONE|SIGHASH_ANYONECANPAY), std::string("NONE|ANYONECANPAY")},
      89         218 :     {static_cast<unsigned char>(SIGHASH_SINGLE), std::string("SINGLE")},
      90         218 :     {static_cast<unsigned char>(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY), std::string("SINGLE|ANYONECANPAY")},
      91             : };
      92             : 
      93           0 : std::string SighashToStr(unsigned char sighash_type)
      94             : {
      95           0 :     const auto& it = mapSigHashTypes.find(sighash_type);
      96           0 :     if (it == mapSigHashTypes.end()) return "";
      97           0 :     return it->second;
      98           0 : }
      99             : 
     100             : /**
     101             :  * Create the assembly string representation of a CScript object.
     102             :  * @param[in] script    CScript object to convert into the asm string representation.
     103             :  * @param[in] fAttemptSighashDecode    Whether to attempt to decode sighash types on data within the script that matches the format
     104             :  *                                     of a signature. Only pass true for scripts you believe could contain signatures. For example,
     105             :  *                                     pass false, or omit the this argument (defaults to false), for scriptPubKeys.
     106             :  */
     107         114 : std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode)
     108             : {
     109         114 :     std::string str;
     110             :     opcodetype opcode;
     111         114 :     std::vector<unsigned char> vch;
     112         114 :     CScript::const_iterator pc = script.begin();
     113         362 :     while (pc < script.end()) {
     114         248 :         if (!str.empty()) {
     115         144 :             str += " ";
     116         144 :         }
     117         248 :         if (!script.GetOp(pc, opcode, vch)) {
     118           0 :             str += "[error]";
     119           0 :             return str;
     120             :         }
     121         248 :         if (0 <= opcode && opcode <= OP_PUSHDATA4) {
     122         181 :             if (vch.size() <= static_cast<std::vector<unsigned char>::size_type>(4)) {
     123           0 :                 str += strprintf("%d", CScriptNum(vch, false).getint());
     124           0 :             } else {
     125             :                 // the IsUnspendable check makes sure not to try to decode OP_RETURN data that may match the format of a signature
     126         181 :                 if (fAttemptSighashDecode && !script.IsUnspendable()) {
     127         144 :                     std::string strSigHashDecode;
     128             :                     // goal: only attempt to decode a defined sighash type from data that looks like a signature within a scriptSig.
     129             :                     // this won't decode correctly formatted public keys in Pubkey or Multisig scripts due to
     130             :                     // the restrictions on the pubkey formats (see IsCompressedOrUncompressedPubKey) being incongruous with the
     131             :                     // checks in CheckSignatureEncoding.
     132         144 :                     if (CheckSignatureEncoding(vch, SCRIPT_VERIFY_STRICTENC, nullptr)) {
     133          70 :                         const unsigned char chSigHashType = vch.back();
     134          70 :                         const auto it = mapSigHashTypes.find(chSigHashType);
     135          70 :                         if (it != mapSigHashTypes.end()) {
     136          70 :                             strSigHashDecode = "[" + it->second + "]";
     137          70 :                             vch.pop_back(); // remove the sighash type byte. it will be replaced by the decode.
     138          70 :                         }
     139          70 :                     }
     140         144 :                     str += HexStr(vch) + strSigHashDecode;
     141         144 :                 } else {
     142          37 :                     str += HexStr(vch);
     143             :                 }
     144             :             }
     145         181 :         } else {
     146          67 :             str += GetOpName(opcode);
     147             :         }
     148             :     }
     149         114 :     return str;
     150         114 : }
     151             : 
     152          47 : std::string EncodeHexTx(const CTransaction& tx)
     153             : {
     154          47 :     CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
     155          47 :     ssTx << tx;
     156          47 :     return HexStr(ssTx);
     157          47 : }
     158             : 
     159          22 : void ScriptToUniv(const CScript& script, UniValue& out, bool include_hex, bool include_address)
     160             : {
     161          22 :     CTxDestination address;
     162             : 
     163          22 :     out.pushKV("asm", ScriptToAsmStr(script));
     164          22 :     if (include_address) {
     165          22 :         out.pushKV("desc", InferDescriptor(script, DUMMY_SIGNING_PROVIDER)->ToString());
     166          22 :     }
     167          22 :     if (include_hex) {
     168          22 :         out.pushKV("hex", HexStr(script));
     169          22 :     }
     170             : 
     171          22 :     std::vector<std::vector<unsigned char>> solns;
     172          22 :     const TxoutType type{Solver(script, solns)};
     173             : 
     174          22 :     if (include_address && ExtractDestination(script, address) && type != TxoutType::PUBKEY) {
     175          15 :         out.pushKV("address", EncodeDestination(address));
     176          15 :     }
     177          22 :     out.pushKV("type", GetTxnOutputType(type));
     178          22 : }
     179             : 
     180          20 : void TxToUniv(const CTransaction& tx, const uint256& block_hash, UniValue& entry, bool include_hex, int serialize_flags, const CTxUndo* txundo, TxVerbosity verbosity, const CSpentIndexTxInfo* ptxSpentInfo)
     181             : {
     182          20 :     CHECK_NONFATAL(verbosity >= TxVerbosity::SHOW_DETAILS);
     183             : 
     184          20 :     uint256 txid = tx.GetHash();
     185          20 :     entry.pushKV("txid", txid.GetHex());
     186             :     // Transaction version is actually unsigned in consensus checks, just signed in memory,
     187             :     // so cast to unsigned before giving it to the user.
     188          20 :     entry.pushKV("version", static_cast<int64_t>(static_cast<uint16_t>(tx.nVersion)));
     189          20 :     entry.pushKV("type", tx.nType);
     190          20 :     entry.pushKV("size", (int)::GetSerializeSize(tx, PROTOCOL_VERSION));
     191          20 :     entry.pushKV("locktime", (int64_t)tx.nLockTime);
     192             : 
     193          20 :     UniValue vin(UniValue::VARR);
     194             : 
     195             :     // If available, use Undo data to calculate the fee. Note that txundo == nullptr
     196             :     // for coinbase transactions and for transactions where undo data is unavailable.
     197          20 :     const bool have_undo = txundo != nullptr;
     198          20 :     CAmount amt_total_in = 0;
     199          20 :     CAmount amt_total_out = 0;
     200             : 
     201          92 :     for (unsigned int i = 0; i < tx.vin.size(); i++) {
     202          72 :         const CTxIn& txin = tx.vin[i];
     203          72 :         UniValue in(UniValue::VOBJ);
     204          72 :         if (tx.IsCoinBase()) {
     205           0 :             in.pushKV("coinbase", HexStr(txin.scriptSig));
     206           0 :         } else {
     207          72 :             in.pushKV("txid", txin.prevout.hash.GetHex());
     208          72 :             in.pushKV("vout", (int64_t)txin.prevout.n);
     209          72 :             UniValue o(UniValue::VOBJ);
     210          72 :             o.pushKV("asm", ScriptToAsmStr(txin.scriptSig, true));
     211          72 :             o.pushKV("hex", HexStr(txin.scriptSig));
     212          72 :             in.pushKV("scriptSig", o);
     213             : 
     214             :             // Add address and value info if spentindex enabled
     215          72 :             if (ptxSpentInfo != nullptr) {
     216           0 :                 CSpentIndexKey spentKey(txin.prevout.hash, txin.prevout.n);
     217           0 :                 auto it = ptxSpentInfo->mSpentInfo.find(spentKey);
     218           0 :                 if (it != ptxSpentInfo->mSpentInfo.end()) {
     219           0 :                     auto spentInfo = it->second;
     220           0 :                     in.pushKV("value", ValueFromAmount(spentInfo.m_amount));
     221           0 :                     in.pushKV("valueSat", spentInfo.m_amount);
     222           0 :                     if (spentInfo.m_address_type == AddressType::P2PK_OR_P2PKH) {
     223           0 :                         in.pushKV("address", EncodeDestination(PKHash(spentInfo.m_address_bytes)));
     224           0 :                     } else if (spentInfo.m_address_type == AddressType::P2SH) {
     225           0 :                         in.pushKV("address", EncodeDestination(ScriptHash(spentInfo.m_address_bytes)));
     226           0 :                     }
     227           0 :                 }
     228           0 :             }
     229          72 :         }
     230          72 :         if (have_undo) {
     231           0 :             const Coin& prev_coin = txundo->vprevout[i];
     232           0 :             const CTxOut& prev_txout = prev_coin.out;
     233             : 
     234           0 :             amt_total_in += prev_txout.nValue;
     235             : 
     236           0 :             if (verbosity == TxVerbosity::SHOW_DETAILS_AND_PREVOUT) {
     237           0 :                 UniValue o_script_pub_key(UniValue::VOBJ);
     238           0 :                 ScriptToUniv(prev_txout.scriptPubKey, /*out=*/o_script_pub_key, /*include_hex=*/true, /*include_address=*/true);
     239             : 
     240           0 :                 UniValue p(UniValue::VOBJ);
     241           0 :                 p.pushKV("generated", bool(prev_coin.fCoinBase));
     242           0 :                 p.pushKV("height", uint64_t(prev_coin.nHeight));
     243           0 :                 p.pushKV("value", ValueFromAmount(prev_txout.nValue));
     244           0 :                 p.pushKV("scriptPubKey", o_script_pub_key);
     245           0 :                 in.pushKV("prevout", p);
     246           0 :             }
     247           0 :         }
     248          72 :         in.pushKV("sequence", (int64_t)txin.nSequence);
     249          72 :         vin.push_back(in);
     250          72 :     }
     251          20 :     entry.pushKV("vin", vin);
     252             : 
     253          20 :     UniValue vout(UniValue::VARR);
     254          42 :     for (unsigned int i = 0; i < tx.vout.size(); i++) {
     255          22 :         const CTxOut& txout = tx.vout[i];
     256             : 
     257          22 :         UniValue out(UniValue::VOBJ);
     258             : 
     259          22 :         out.pushKV("value", ValueFromAmount(txout.nValue));
     260          22 :         out.pushKV("valueSat", txout.nValue);
     261          22 :         out.pushKV("n", (int64_t)i);
     262             : 
     263          22 :         UniValue o(UniValue::VOBJ);
     264          22 :         ScriptToUniv(txout.scriptPubKey, /*out=*/o, /*include_hex=*/true, /*include_address=*/true);
     265          22 :         out.pushKV("scriptPubKey", o);
     266             : 
     267             :         // Add spent information if spentindex is enabled
     268          22 :         if (ptxSpentInfo != nullptr) {
     269           0 :             CSpentIndexKey spentKey(txid, i);
     270           0 :             auto it = ptxSpentInfo->mSpentInfo.find(spentKey);
     271           0 :             if (it != ptxSpentInfo->mSpentInfo.end()) {
     272           0 :                 auto spentInfo = it->second;
     273           0 :                 out.pushKV("spentTxId", spentInfo.m_tx_hash.GetHex());
     274           0 :                 out.pushKV("spentIndex", spentInfo.m_tx_index);
     275           0 :                 out.pushKV("spentHeight", spentInfo.m_block_height);
     276           0 :             }
     277           0 :         }
     278          22 :         vout.push_back(out);
     279             : 
     280          22 :         if (have_undo) {
     281           0 :             amt_total_out += txout.nValue;
     282           0 :         }
     283          22 :     }
     284          20 :     entry.pushKV("vout", vout);
     285             : 
     286          20 :     if (!tx.vExtraPayload.empty()) {
     287           0 :         entry.pushKV("extraPayloadSize", tx.vExtraPayload.size());
     288           0 :         entry.pushKV("extraPayload", HexStr(tx.vExtraPayload));
     289           0 :     }
     290             : 
     291          20 :     if (tx.nType == TRANSACTION_PROVIDER_REGISTER) {
     292           0 :         if (const auto opt_proTx = GetTxPayload<CProRegTx>(tx)) {
     293           0 :             entry.pushKV("proRegTx", opt_proTx->ToJson());
     294           0 :         }
     295          20 :     } else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_SERVICE) {
     296           0 :         if (const auto opt_proTx = GetTxPayload<CProUpServTx>(tx)) {
     297           0 :             entry.pushKV("proUpServTx", opt_proTx->ToJson());
     298           0 :         }
     299          20 :     } else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_REGISTRAR) {
     300           0 :         if (const auto opt_proTx = GetTxPayload<CProUpRegTx>(tx)) {
     301           0 :             entry.pushKV("proUpRegTx", opt_proTx->ToJson());
     302           0 :         }
     303          20 :     } else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_REVOKE) {
     304           0 :         if (const auto opt_proTx = GetTxPayload<CProUpRevTx>(tx)) {
     305           0 :             entry.pushKV("proUpRevTx", opt_proTx->ToJson());
     306           0 :         }
     307          20 :     } else if (tx.nType == TRANSACTION_COINBASE) {
     308           0 :         if (const auto opt_cbTx = GetTxPayload<CCbTx>(tx)) {
     309           0 :             entry.pushKV("cbTx", opt_cbTx->ToJson());
     310           0 :         }
     311          20 :     } else if (tx.nType == TRANSACTION_QUORUM_COMMITMENT) {
     312           0 :         if (const auto opt_qcTx = GetTxPayload<llmq::CFinalCommitmentTxPayload>(tx)) {
     313           0 :             entry.pushKV("qcTx", opt_qcTx->ToJson());
     314           0 :         }
     315          20 :     } else if (tx.nType == TRANSACTION_MNHF_SIGNAL) {
     316           0 :         if (const auto opt_mnhfTx = GetTxPayload<MNHFTxPayload>(tx)) {
     317           0 :             entry.pushKV("mnhfTx", opt_mnhfTx->ToJson());
     318           0 :         }
     319          20 :     } else if (tx.nType == TRANSACTION_ASSET_LOCK) {
     320           0 :         if (const auto opt_assetLockTx = GetTxPayload<CAssetLockPayload>(tx)) {
     321           0 :             entry.pushKV("assetLockTx", opt_assetLockTx->ToJson());
     322           0 :         }
     323          20 :     } else if (tx.nType == TRANSACTION_ASSET_UNLOCK) {
     324           0 :         if (const auto opt_assetUnlockTx = GetTxPayload<CAssetUnlockPayload>(tx)) {
     325           0 :             entry.pushKV("assetUnlockTx", opt_assetUnlockTx->ToJson());
     326           0 :         }
     327           0 :     }
     328             : 
     329          20 :     if (have_undo) {
     330           0 :         CAmount fee = amt_total_in - amt_total_out;
     331           0 :         if (tx.IsPlatformTransfer()) {
     332           0 :             auto payload = GetTxPayload<CAssetUnlockPayload>(tx);
     333           0 :             CHECK_NONFATAL(payload);
     334           0 :             fee = payload->getFee();
     335           0 :         }
     336           0 :         CHECK_NONFATAL(MoneyRange(fee));
     337           0 :         entry.pushKV("fee", ValueFromAmount(fee));
     338           0 :     }
     339             : 
     340          20 :     if (!block_hash.IsNull()) {
     341           0 :         entry.pushKV("blockhash", block_hash.GetHex());
     342           0 :     }
     343             : 
     344          20 :     if (include_hex) {
     345          19 :         entry.pushKV("hex", EncodeHexTx(tx)); // The hex-encoded transaction. Used the name "hex" to be consistent with the verbose output of "getrawtransaction".
     346          19 :     }
     347          20 : }