Line data Source code
1 : // Copyright (c) 2009-2014 The Bitcoin developers
2 : // Copyright (c) 2017-2021 The PIVX Core 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 "core_io.h"
7 :
8 : #include "key_io.h"
9 : #include "primitives/transaction.h"
10 : #include "script/script.h"
11 : #include "script/standard.h"
12 : #include "sapling/sapling_core_write.h"
13 : #include "serialize.h"
14 : #include "streams.h"
15 : #include <univalue.h>
16 : #include "util/system.h"
17 : #include "utilmoneystr.h"
18 : #include "utilstrencodings.h"
19 :
20 164 : std::string FormatScript(const CScript& script)
21 : {
22 164 : std::string ret;
23 328 : CScript::const_iterator it = script.begin();
24 610 : opcodetype op;
25 1220 : while (it != script.end()) {
26 446 : CScript::const_iterator it2 = it;
27 446 : std::vector<unsigned char> vch;
28 446 : if (script.GetOp2(it, op, &vch)) {
29 446 : if (op == OP_0) {
30 36 : ret += "0 ";
31 482 : continue;
32 410 : } else if ((op >= OP_1 && op <= OP_16) || op == OP_1NEGATE) {
33 120 : ret += strprintf("%i ", op - OP_1NEGATE - 1);
34 60 : continue;
35 350 : } else if (op >= OP_NOP && op <= OP_NOP10) {
36 131 : std::string str(GetOpName(op));
37 131 : if (str.substr(0, 3) == std::string("OP_")) {
38 262 : ret += str.substr(3, std::string::npos) + " ";
39 155 : continue;
40 : }
41 : }
42 219 : if (vch.size() > 0) {
43 876 : ret += strprintf("0x%x 0x%x ", HexStr(std::vector<uint8_t>(it2, it - vch.size())),
44 876 : HexStr(std::vector<uint8_t>(it - vch.size(), it)));
45 : } else {
46 0 : ret += strprintf("0x%x", HexStr(std::vector<uint8_t>(it2, it)));
47 : }
48 219 : continue;
49 : }
50 0 : ret += strprintf("0x%x ", HexStr(std::vector<uint8_t>(it2, script.end())));
51 0 : break;
52 : }
53 328 : return ret.substr(0, ret.size() - 1);
54 : }
55 :
56 : const std::map<unsigned char, std::string> mapSigHashTypes = {
57 : {static_cast<unsigned char>(SIGHASH_ALL), std::string("ALL")},
58 : {static_cast<unsigned char>(SIGHASH_ALL | SIGHASH_ANYONECANPAY), std::string("ALL|ANYONECANPAY")},
59 : {static_cast<unsigned char>(SIGHASH_NONE), std::string("NONE")},
60 : {static_cast<unsigned char>(SIGHASH_NONE | SIGHASH_ANYONECANPAY), std::string("NONE|ANYONECANPAY")},
61 : {static_cast<unsigned char>(SIGHASH_SINGLE), std::string("SINGLE")},
62 : {static_cast<unsigned char>(SIGHASH_SINGLE | SIGHASH_ANYONECANPAY), std::string("SINGLE|ANYONECANPAY")}
63 : };
64 :
65 : /**
66 : * Create the assembly string representation of a CScript object.
67 : * @param[in] script CScript object to convert into the asm string representation.
68 : * @param[in] fAttemptSighashDecode Whether to attempt to decode sighash types on data within the script that matches the format
69 : * of a signature. Only pass true for scripts you believe could contain signatures. For example,
70 : * pass false, or omit the this argument (defaults to false), for scriptPubKeys.
71 : */
72 2190 : std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode)
73 : {
74 2190 : std::string str;
75 2190 : opcodetype opcode;
76 4380 : std::vector<unsigned char> vch;
77 4380 : CScript::const_iterator pc = script.begin();
78 11419 : while (pc < script.end()) {
79 9229 : if (!str.empty()) {
80 7104 : str += " ";
81 : }
82 9229 : if (!script.GetOp(pc, opcode, vch)) {
83 2190 : str += "[error]";
84 : return str;
85 : }
86 9229 : if (0 <= opcode && opcode <= OP_PUSHDATA4) {
87 2749 : if (vch.size() <= static_cast<std::vector<unsigned char>::size_type>(4)) {
88 69 : str += strprintf("%d", CScriptNum(vch, false).getint());
89 : } else {
90 : // the IsUnspendable check makes sure not to try to decode OP_RETURN data that may match the format of a signature
91 2726 : if (fAttemptSighashDecode && !script.IsUnspendable()) {
92 2174 : std::string strSigHashDecode;
93 : // goal: only attempt to decode a defined sighash type from data that looks like a signature within a scriptSig.
94 : // this won't decode correctly formatted public keys in Pubkey or Multisig scripts due to
95 : // the restrictions on the pubkey formats (see IsCompressedOrUncompressedPubKey) being incongruous with the
96 : // checks in CheckSignatureEncoding.
97 1087 : if (CheckSignatureEncoding(vch, SCRIPT_VERIFY_STRICTENC, nullptr)) {
98 547 : const unsigned char chSigHashType = vch.back();
99 547 : if (mapSigHashTypes.count(chSigHashType)) {
100 547 : strSigHashDecode = "[" + mapSigHashTypes.find(chSigHashType)->second + "]";
101 547 : vch.pop_back(); // remove the sighash type byte. it will be replaced by the decode.
102 : }
103 : }
104 3261 : str += HexStr(vch) + strSigHashDecode;
105 : } else {
106 4917 : str += HexStr(vch);
107 : }
108 : }
109 : } else {
110 17899 : str += GetOpName(opcode);
111 : }
112 : }
113 : return str;
114 : }
115 :
116 106619 : std::string EncodeHexTx(const CTransaction& tx)
117 : {
118 106619 : CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
119 106619 : ssTx << tx;
120 106619 : return HexStr(ssTx);
121 : }
122 :
123 1596 : void ScriptPubKeyToUniv(const CScript& scriptPubKey,
124 : UniValue& out,
125 : bool fIncludeHex)
126 : {
127 1596 : txnouttype type;
128 3155 : std::vector<CTxDestination> addresses;
129 1596 : int nRequired;
130 :
131 3192 : out.pushKV("asm", ScriptToAsmStr(scriptPubKey));
132 1596 : if (fIncludeHex)
133 6314 : out.pushKV("hex", HexStr(scriptPubKey));
134 :
135 1596 : if (!ExtractDestinations(scriptPubKey, type, addresses, nRequired)) {
136 42 : if (!scriptPubKey.empty() && scriptPubKey.IsZerocoinMint()) {
137 0 : out.pushKV("type", "zerocoinmint"); // unsupported type.
138 : } else {
139 74 : out.pushKV("type", GetTxnOutputType(type));
140 : }
141 37 : return;
142 : }
143 :
144 1559 : out.pushKV("reqSigs", nRequired);
145 1559 : out.pushKV("type", GetTxnOutputType(type));
146 :
147 1559 : UniValue a(UniValue::VARR);
148 1559 : if (type == TX_COLDSTAKE && addresses.size() == 2) {
149 52 : a.push_back(EncodeDestination(addresses[0], CChainParams::STAKING_ADDRESS));
150 104 : a.push_back(EncodeDestination(addresses[1], CChainParams::PUBKEY_ADDRESS));
151 : } else {
152 3016 : for (const CTxDestination& addr : addresses)
153 3018 : a.push_back(EncodeDestination(addr));
154 : }
155 3118 : out.pushKV("addresses", a);
156 : }
157 :
158 1070 : static void SpecialTxToJSON(const CTransaction& tx, UniValue& entry)
159 : {
160 1070 : if (tx.IsSpecialTx()) {
161 77 : entry.pushKV("extraPayloadSize", (int)tx.extraPayload->size());
162 231 : entry.pushKV("extraPayload", HexStr(*(tx.extraPayload)));
163 : }
164 1070 : }
165 :
166 1070 : void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
167 : {
168 2140 : entry.pushKV("txid", tx.GetHash().GetHex());
169 1070 : entry.pushKV("version", tx.nVersion);
170 1070 : entry.pushKV("type", tx.nType);
171 1070 : entry.pushKV("size", (int)::GetSerializeSize(tx, PROTOCOL_VERSION));
172 1070 : entry.pushKV("locktime", (int64_t)tx.nLockTime);
173 :
174 2140 : UniValue vin(UniValue::VARR);
175 2311 : for (const CTxIn& txin : tx.vin) {
176 2482 : UniValue in(UniValue::VOBJ);
177 1241 : if (tx.IsCoinBase())
178 2001 : in.pushKV("coinbase", HexStr(txin.scriptSig));
179 : else {
180 1148 : in.pushKV("txid", txin.prevout.hash.GetHex());
181 574 : in.pushKV("vout", (int64_t)txin.prevout.n);
182 574 : UniValue o(UniValue::VOBJ);
183 1148 : o.pushKV("asm", ScriptToAsmStr(txin.scriptSig, true));
184 1722 : o.pushKV("hex", HexStr(txin.scriptSig));
185 1148 : in.pushKV("scriptSig", o);
186 : }
187 1241 : in.pushKV("sequence", (int64_t)txin.nSequence);
188 1241 : vin.push_back(in);
189 : }
190 1070 : entry.pushKV("vin", vin);
191 :
192 1070 : UniValue vout(UniValue::VARR);
193 2638 : for (unsigned int i = 0; i < tx.vout.size(); i++) {
194 1568 : const CTxOut& txout = tx.vout[i];
195 :
196 3136 : UniValue out(UniValue::VOBJ);
197 :
198 3136 : UniValue outValue(UniValue::VNUM, FormatMoney(txout.nValue));
199 1568 : out.pushKV("value", outValue);
200 1568 : out.pushKV("n", (int64_t)i);
201 :
202 3136 : UniValue o(UniValue::VOBJ);
203 1568 : ScriptPubKeyToUniv(txout.scriptPubKey, o, true);
204 1568 : out.pushKV("scriptPubKey", o);
205 1568 : vout.push_back(out);
206 : }
207 1070 : entry.pushKV("vout", vout);
208 :
209 : // Sapling
210 1070 : TxSaplingToJSON(tx, entry);
211 :
212 : // Special Txes
213 1070 : SpecialTxToJSON(tx, entry);
214 :
215 35310 : if (!hashBlock.IsNull())
216 0 : entry.pushKV("blockhash", hashBlock.GetHex());
217 :
218 3210 : entry.pushKV("hex", EncodeHexTx(tx)); // the hex-encoded transaction. used the name "hex" to be consistent with the verbose output of "getrawtransaction".
219 1070 : }
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