LCOV - code coverage report
Current view: top level - src/rpc - output_script.cpp (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 1 198 0.5 %
Date: 2024-01-03 14:57:27 Functions: 0 10 0.0 %
Branches: 0 732 0.0 %

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2010 Satoshi Nakamoto
       2                 :            : // Copyright (c) 2009-2022 The Bitcoin Core developers
       3                 :            : // Distributed under the MIT software license, see the accompanying
       4                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       5                 :            : 
       6                 :            : #include <key_io.h>
       7                 :            : #include <outputtype.h>
       8                 :            : #include <pubkey.h>
       9                 :            : #include <rpc/protocol.h>
      10                 :            : #include <rpc/request.h>
      11                 :            : #include <rpc/server.h>
      12                 :            : #include <rpc/util.h>
      13                 :            : #include <script/descriptor.h>
      14                 :            : #include <script/script.h>
      15                 :            : #include <script/signingprovider.h>
      16                 :            : #include <tinyformat.h>
      17                 :            : #include <univalue.h>
      18                 :            : #include <util/check.h>
      19                 :            : #include <util/strencodings.h>
      20                 :            : 
      21                 :            : #include <cstdint>
      22                 :            : #include <memory>
      23                 :            : #include <optional>
      24                 :            : #include <string>
      25                 :            : #include <tuple>
      26                 :            : #include <vector>
      27                 :          2 : 
      28                 :          0 : static RPCHelpMan validateaddress()
      29                 :            : {
      30 [ #  # ][ #  # ]:          0 :     return RPCHelpMan{
         [ #  # ][ #  # ]
      31         [ #  # ]:          0 :         "validateaddress",
      32         [ #  # ]:          0 :         "\nReturn information about the given bitcoin address.\n",
      33         [ #  # ]:          0 :         {
      34 [ #  # ][ #  # ]:          0 :             {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The bitcoin address to validate"},
                 [ #  # ]
      35                 :            :         },
      36 [ #  # ][ #  # ]:          0 :         RPCResult{
      37 [ #  # ][ #  # ]:          0 :             RPCResult::Type::OBJ, "", "",
      38         [ #  # ]:          0 :             {
      39 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "isvalid", "If the address is valid or not"},
                 [ #  # ]
      40 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "address", /*optional=*/true, "The bitcoin address validated"},
                 [ #  # ]
      41 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR_HEX, "scriptPubKey", /*optional=*/true, "The hex-encoded scriptPubKey generated by the address"},
                 [ #  # ]
      42 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "isscript", /*optional=*/true, "If the key is a script"},
                 [ #  # ]
      43 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "iswitness", /*optional=*/true, "If the address is a witness address"},
                 [ #  # ]
      44 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::NUM, "witness_version", /*optional=*/true, "The version number of the witness program"},
                 [ #  # ]
      45 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR_HEX, "witness_program", /*optional=*/true, "The hex value of the witness program"},
                 [ #  # ]
      46 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "error", /*optional=*/true, "Error message, if any"},
                 [ #  # ]
      47 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::ARR, "error_locations", /*optional=*/true, "Indices of likely error locations in address, if known (e.g. Bech32 errors)",
                 [ #  # ]
      48         [ #  # ]:          0 :                     {
      49 [ #  # ][ #  # ]:          0 :                         {RPCResult::Type::NUM, "index", "index of a potential error"},
                 [ #  # ]
      50                 :            :                     }},
      51                 :            :             }
      52                 :            :         },
      53         [ #  # ]:          0 :         RPCExamples{
      54 [ #  # ][ #  # ]:          0 :             HelpExampleCli("validateaddress", "\"" + EXAMPLE_ADDRESS[0] + "\"") +
         [ #  # ][ #  # ]
                 [ #  # ]
      55 [ #  # ][ #  # ]:          0 :             HelpExampleRpc("validateaddress", "\"" + EXAMPLE_ADDRESS[0] + "\"")
         [ #  # ][ #  # ]
      56                 :            :         },
      57                 :          0 :         [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
      58                 :            :         {
      59                 :          0 :             std::string error_msg;
      60                 :          0 :             std::vector<int> error_locations;
      61 [ #  # ][ #  # ]:          0 :             CTxDestination dest = DecodeDestination(request.params[0].get_str(), error_msg, &error_locations);
                 [ #  # ]
      62         [ #  # ]:          0 :             const bool isValid = IsValidDestination(dest);
      63         [ #  # ]:          0 :             CHECK_NONFATAL(isValid == error_msg.empty());
      64                 :            : 
      65         [ #  # ]:          0 :             UniValue ret(UniValue::VOBJ);
      66 [ #  # ][ #  # ]:          0 :             ret.pushKV("isvalid", isValid);
                 [ #  # ]
      67         [ #  # ]:          0 :             if (isValid) {
      68         [ #  # ]:          0 :                 std::string currentAddress = EncodeDestination(dest);
      69 [ #  # ][ #  # ]:          0 :                 ret.pushKV("address", currentAddress);
                 [ #  # ]
      70                 :            : 
      71         [ #  # ]:          0 :                 CScript scriptPubKey = GetScriptForDestination(dest);
      72 [ #  # ][ #  # ]:          0 :                 ret.pushKV("scriptPubKey", HexStr(scriptPubKey));
         [ #  # ][ #  # ]
                 [ #  # ]
      73                 :            : 
      74         [ #  # ]:          0 :                 UniValue detail = DescribeAddress(dest);
      75 [ #  # ][ #  # ]:          0 :                 ret.pushKVs(detail);
      76                 :          0 :             } else {
      77         [ #  # ]:          0 :                 UniValue error_indices(UniValue::VARR);
      78 [ #  # ][ #  # ]:          0 :                 for (int i : error_locations) error_indices.push_back(i);
                 [ #  # ]
      79 [ #  # ][ #  # ]:          0 :                 ret.pushKV("error_locations", error_indices);
                 [ #  # ]
      80 [ #  # ][ #  # ]:          0 :                 ret.pushKV("error", error_msg);
                 [ #  # ]
      81                 :          0 :             }
      82                 :            : 
      83                 :          0 :             return ret;
      84         [ #  # ]:          0 :         },
      85                 :            :     };
      86                 :          0 : }
      87                 :            : 
      88                 :          0 : static RPCHelpMan createmultisig()
      89                 :            : {
      90 [ #  # ][ #  # ]:          0 :     return RPCHelpMan{"createmultisig",
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
      91         [ #  # ]:          0 :         "\nCreates a multi-signature address with n signature of m keys required.\n"
      92                 :            :         "It returns a json object with the address and redeemScript.\n",
      93         [ #  # ]:          0 :         {
      94 [ #  # ][ #  # ]:          0 :             {"nrequired", RPCArg::Type::NUM, RPCArg::Optional::NO, "The number of required signatures out of the n keys."},
                 [ #  # ]
      95 [ #  # ][ #  # ]:          0 :             {"keys", RPCArg::Type::ARR, RPCArg::Optional::NO, "The hex-encoded public keys.",
                 [ #  # ]
      96         [ #  # ]:          0 :                 {
      97 [ #  # ][ #  # ]:          0 :                     {"key", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "The hex-encoded public key"},
                 [ #  # ]
      98                 :            :                 }},
      99 [ #  # ][ #  # ]:          0 :             {"address_type", RPCArg::Type::STR, RPCArg::Default{"legacy"}, "The address type to use. Options are \"legacy\", \"p2sh-segwit\", and \"bech32\"."},
         [ #  # ][ #  # ]
     100                 :            :         },
     101 [ #  # ][ #  # ]:          0 :         RPCResult{
     102 [ #  # ][ #  # ]:          0 :             RPCResult::Type::OBJ, "", "",
     103         [ #  # ]:          0 :             {
     104 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "address", "The value of the new multisig address."},
                 [ #  # ]
     105 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR_HEX, "redeemScript", "The string value of the hex-encoded redemption script."},
                 [ #  # ]
     106 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "descriptor", "The descriptor for this multisig"},
                 [ #  # ]
     107 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::ARR, "warnings", /*optional=*/true, "Any warnings resulting from the creation of this multisig",
                 [ #  # ]
     108         [ #  # ]:          0 :                 {
     109 [ #  # ][ #  # ]:          0 :                     {RPCResult::Type::STR, "", ""},
                 [ #  # ]
     110                 :            :                 }},
     111                 :            :             }
     112                 :            :         },
     113         [ #  # ]:          0 :         RPCExamples{
     114                 :            :             "\nCreate a multisig address from 2 public keys\n"
     115 [ #  # ][ #  # ]:          0 :             + HelpExampleCli("createmultisig", "2 \"[\\\"03789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd\\\",\\\"03dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a61626\\\"]\"") +
         [ #  # ][ #  # ]
                 [ #  # ]
     116                 :            :             "\nAs a JSON-RPC call\n"
     117 [ #  # ][ #  # ]:          0 :             + HelpExampleRpc("createmultisig", "2, [\"03789ed0bb717d88f7d321a368d905e7430207ebbd82bd342cf11ae157a7ace5fd\",\"03dbc6764b8884a92e871274b87583e6d5c2a58819473e17e107ef3f6aa5a61626\"]")
         [ #  # ][ #  # ]
     118                 :            :                 },
     119                 :          0 :         [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
     120                 :            :         {
     121                 :          0 :             int required = request.params[0].getInt<int>();
     122                 :            : 
     123                 :            :             // Get the public keys
     124                 :          0 :             const UniValue& keys = request.params[1].get_array();
     125                 :          0 :             std::vector<CPubKey> pubkeys;
     126 [ #  # ][ #  # ]:          0 :             for (unsigned int i = 0; i < keys.size(); ++i) {
     127 [ #  # ][ #  # ]:          0 :                 if (IsHex(keys[i].get_str()) && (keys[i].get_str().length() == 66 || keys[i].get_str().length() == 130)) {
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
                 [ #  # ]
     128 [ #  # ][ #  # ]:          0 :                     pubkeys.push_back(HexToPubKey(keys[i].get_str()));
         [ #  # ][ #  # ]
     129                 :          0 :                 } else {
     130 [ #  # ][ #  # ]:          0 :                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Invalid public key: %s\n.", keys[i].get_str()));
         [ #  # ][ #  # ]
                 [ #  # ]
     131                 :            :                 }
     132                 :          0 :             }
     133                 :            : 
     134                 :            :             // Get the output type
     135                 :          0 :             OutputType output_type = OutputType::LEGACY;
     136 [ #  # ][ #  # ]:          0 :             if (!request.params[2].isNull()) {
                 [ #  # ]
     137 [ #  # ][ #  # ]:          0 :                 std::optional<OutputType> parsed = ParseOutputType(request.params[2].get_str());
                 [ #  # ]
     138         [ #  # ]:          0 :                 if (!parsed) {
     139 [ #  # ][ #  # ]:          0 :                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Unknown address type '%s'", request.params[2].get_str()));
         [ #  # ][ #  # ]
                 [ #  # ]
     140 [ #  # ][ #  # ]:          0 :                 } else if (parsed.value() == OutputType::BECH32M) {
     141 [ #  # ][ #  # ]:          0 :                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "createmultisig cannot create bech32m multisig addresses");
                 [ #  # ]
     142                 :            :                 }
     143         [ #  # ]:          0 :                 output_type = parsed.value();
     144                 :          0 :             }
     145                 :            : 
     146                 :            :             // Construct using pay-to-script-hash:
     147                 :          0 :             FillableSigningProvider keystore;
     148         [ #  # ]:          0 :             CScript inner;
     149         [ #  # ]:          0 :             const CTxDestination dest = AddAndGetMultisigDestination(required, pubkeys, output_type, keystore, inner);
     150                 :            : 
     151                 :            :             // Make the descriptor
     152 [ #  # ][ #  # ]:          0 :             std::unique_ptr<Descriptor> descriptor = InferDescriptor(GetScriptForDestination(dest), keystore);
     153                 :            : 
     154         [ #  # ]:          0 :             UniValue result(UniValue::VOBJ);
     155 [ #  # ][ #  # ]:          0 :             result.pushKV("address", EncodeDestination(dest));
         [ #  # ][ #  # ]
     156 [ #  # ][ #  # ]:          0 :             result.pushKV("redeemScript", HexStr(inner));
         [ #  # ][ #  # ]
                 [ #  # ]
     157 [ #  # ][ #  # ]:          0 :             result.pushKV("descriptor", descriptor->ToString());
         [ #  # ][ #  # ]
     158                 :            : 
     159         [ #  # ]:          0 :             UniValue warnings(UniValue::VARR);
     160 [ #  # ][ #  # ]:          0 :             if (descriptor->GetOutputType() != output_type) {
                 [ #  # ]
     161                 :            :                 // Only warns if the user has explicitly chosen an address type we cannot generate
     162 [ #  # ][ #  # ]:          0 :                 warnings.push_back("Unable to make chosen address type, please ensure no uncompressed public keys are present.");
     163                 :          0 :             }
     164         [ #  # ]:          0 :             PushWarnings(warnings, result);
     165                 :            : 
     166                 :          0 :             return result;
     167         [ #  # ]:          0 :         },
     168                 :            :     };
     169                 :          0 : }
     170                 :            : 
     171                 :          0 : static RPCHelpMan getdescriptorinfo()
     172                 :            : {
     173         [ #  # ]:          0 :     const std::string EXAMPLE_DESCRIPTOR = "wpkh([d34db33f/84h/0h/0h]0279be667ef9dcbbac55a06295Ce870b07029Bfcdb2dce28d959f2815b16f81798)";
     174                 :            : 
     175 [ #  # ][ #  # ]:          0 :     return RPCHelpMan{"getdescriptorinfo",
         [ #  # ][ #  # ]
     176         [ #  # ]:          0 :         {"\nAnalyses a descriptor.\n"},
     177         [ #  # ]:          0 :         {
     178 [ #  # ][ #  # ]:          0 :             {"descriptor", RPCArg::Type::STR, RPCArg::Optional::NO, "The descriptor."},
                 [ #  # ]
     179                 :            :         },
     180 [ #  # ][ #  # ]:          0 :         RPCResult{
     181 [ #  # ][ #  # ]:          0 :             RPCResult::Type::OBJ, "", "",
     182         [ #  # ]:          0 :             {
     183 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "descriptor", "The descriptor in canonical form, without private keys"},
                 [ #  # ]
     184 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "checksum", "The checksum for the input descriptor"},
                 [ #  # ]
     185 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "isrange", "Whether the descriptor is ranged"},
                 [ #  # ]
     186 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "issolvable", "Whether the descriptor is solvable"},
                 [ #  # ]
     187 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::BOOL, "hasprivatekeys", "Whether the input descriptor contained at least one private key"},
                 [ #  # ]
     188                 :            :             }
     189                 :            :         },
     190         [ #  # ]:          0 :         RPCExamples{
     191         [ #  # ]:          0 :             "Analyse a descriptor\n" +
     192 [ #  # ][ #  # ]:          0 :             HelpExampleCli("getdescriptorinfo", "\"" + EXAMPLE_DESCRIPTOR + "\"") +
         [ #  # ][ #  # ]
                 [ #  # ]
     193 [ #  # ][ #  # ]:          0 :             HelpExampleRpc("getdescriptorinfo", "\"" + EXAMPLE_DESCRIPTOR + "\"")
         [ #  # ][ #  # ]
     194                 :            :         },
     195                 :          0 :         [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
     196                 :            :         {
     197                 :          0 :             FlatSigningProvider provider;
     198                 :          0 :             std::string error;
     199 [ #  # ][ #  # ]:          0 :             auto desc = Parse(request.params[0].get_str(), provider, error);
                 [ #  # ]
     200         [ #  # ]:          0 :             if (!desc) {
     201 [ #  # ][ #  # ]:          0 :                 throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, error);
     202                 :            :             }
     203                 :            : 
     204         [ #  # ]:          0 :             UniValue result(UniValue::VOBJ);
     205 [ #  # ][ #  # ]:          0 :             result.pushKV("descriptor", desc->ToString());
         [ #  # ][ #  # ]
     206 [ #  # ][ #  # ]:          0 :             result.pushKV("checksum", GetDescriptorChecksum(request.params[0].get_str()));
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
     207 [ #  # ][ #  # ]:          0 :             result.pushKV("isrange", desc->IsRange());
         [ #  # ][ #  # ]
     208 [ #  # ][ #  # ]:          0 :             result.pushKV("issolvable", desc->IsSolvable());
         [ #  # ][ #  # ]
     209 [ #  # ][ #  # ]:          0 :             result.pushKV("hasprivatekeys", provider.keys.size() > 0);
                 [ #  # ]
     210                 :          0 :             return result;
     211         [ #  # ]:          0 :         },
     212                 :            :     };
     213                 :          0 : }
     214                 :            : 
     215                 :          0 : static RPCHelpMan deriveaddresses()
     216                 :            : {
     217         [ #  # ]:          0 :     const std::string EXAMPLE_DESCRIPTOR = "wpkh([d34db33f/84h/0h/0h]xpub6DJ2dNUysrn5Vt36jH2KLBT2i1auw1tTSSomg8PhqNiUtx8QX2SvC9nrHu81fT41fvDUnhMjEzQgXnQjKEu3oaqMSzhSrHMxyyoEAmUHQbY/0/*)#cjjspncu";
     218                 :            : 
     219 [ #  # ][ #  # ]:          0 :     return RPCHelpMan{"deriveaddresses",
         [ #  # ][ #  # ]
     220         [ #  # ]:          0 :         {"\nDerives one or more addresses corresponding to an output descriptor.\n"
     221                 :            :          "Examples of output descriptors are:\n"
     222                 :            :          "    pkh(<pubkey>)                                     P2PKH outputs for the given pubkey\n"
     223                 :            :          "    wpkh(<pubkey>)                                    Native segwit P2PKH outputs for the given pubkey\n"
     224                 :            :          "    sh(multi(<n>,<pubkey>,<pubkey>,...))              P2SH-multisig outputs for the given threshold and pubkeys\n"
     225                 :            :          "    raw(<hex script>)                                 Outputs whose scriptPubKey equals the specified hex scripts\n"
     226                 :            :          "    tr(<pubkey>,multi_a(<n>,<pubkey>,<pubkey>,...))   P2TR-multisig outputs for the given threshold and pubkeys\n"
     227                 :            :          "\nIn the above, <pubkey> either refers to a fixed public key in hexadecimal notation, or to an xpub/xprv optionally followed by one\n"
     228                 :            :          "or more path elements separated by \"/\", where \"h\" represents a hardened child key.\n"
     229                 :            :          "For more information on output descriptors, see the documentation in the doc/descriptors.md file.\n"},
     230         [ #  # ]:          0 :         {
     231 [ #  # ][ #  # ]:          0 :             {"descriptor", RPCArg::Type::STR, RPCArg::Optional::NO, "The descriptor."},
                 [ #  # ]
     232 [ #  # ][ #  # ]:          0 :             {"range", RPCArg::Type::RANGE, RPCArg::Optional::OMITTED, "If a ranged descriptor is used, this specifies the end or the range (in [begin,end] notation) to derive."},
                 [ #  # ]
     233                 :            :         },
     234 [ #  # ][ #  # ]:          0 :         RPCResult{
     235 [ #  # ][ #  # ]:          0 :             RPCResult::Type::ARR, "", "",
     236         [ #  # ]:          0 :             {
     237 [ #  # ][ #  # ]:          0 :                 {RPCResult::Type::STR, "address", "the derived addresses"},
                 [ #  # ]
     238                 :            :             }
     239                 :            :         },
     240         [ #  # ]:          0 :         RPCExamples{
     241         [ #  # ]:          0 :             "First three native segwit receive addresses\n" +
     242 [ #  # ][ #  # ]:          0 :             HelpExampleCli("deriveaddresses", "\"" + EXAMPLE_DESCRIPTOR + "\" \"[0,2]\"") +
         [ #  # ][ #  # ]
                 [ #  # ]
     243 [ #  # ][ #  # ]:          0 :             HelpExampleRpc("deriveaddresses", "\"" + EXAMPLE_DESCRIPTOR + "\", \"[0,2]\"")
         [ #  # ][ #  # ]
     244                 :            :         },
     245                 :          0 :         [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
     246                 :            :         {
     247                 :          0 :             const std::string desc_str = request.params[0].get_str();
     248                 :            : 
     249                 :          0 :             int64_t range_begin = 0;
     250                 :          0 :             int64_t range_end = 0;
     251                 :            : 
     252 [ #  # ][ #  # ]:          0 :             if (request.params.size() >= 2 && !request.params[1].isNull()) {
                 [ #  # ]
     253 [ #  # ][ #  # ]:          0 :                 std::tie(range_begin, range_end) = ParseDescriptorRange(request.params[1]);
     254                 :          0 :             }
     255                 :            : 
     256                 :          0 :             FlatSigningProvider key_provider;
     257                 :          0 :             std::string error;
     258         [ #  # ]:          0 :             auto desc = Parse(desc_str, key_provider, error, /* require_checksum = */ true);
     259         [ #  # ]:          0 :             if (!desc) {
     260         [ #  # ]:          0 :                 throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, error);
     261                 :            :             }
     262                 :            : 
     263 [ #  # ][ #  # ]:          0 :             if (!desc->IsRange() && request.params.size() > 1) {
                 [ #  # ]
     264 [ #  # ][ #  # ]:          0 :                 throw JSONRPCError(RPC_INVALID_PARAMETER, "Range should not be specified for an un-ranged descriptor");
                 [ #  # ]
     265                 :            :             }
     266                 :            : 
     267 [ #  # ][ #  # ]:          0 :             if (desc->IsRange() && request.params.size() == 1) {
                 [ #  # ]
     268 [ #  # ][ #  # ]:          0 :                 throw JSONRPCError(RPC_INVALID_PARAMETER, "Range must be specified for a ranged descriptor");
                 [ #  # ]
     269                 :            :             }
     270                 :            : 
     271         [ #  # ]:          0 :             UniValue addresses(UniValue::VARR);
     272                 :            : 
     273         [ #  # ]:          0 :             for (int64_t i = range_begin; i <= range_end; ++i) {
     274                 :          0 :                 FlatSigningProvider provider;
     275                 :          0 :                 std::vector<CScript> scripts;
     276 [ #  # ][ #  # ]:          0 :                 if (!desc->Expand(i, key_provider, scripts, provider)) {
     277 [ #  # ][ #  # ]:          0 :                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Cannot derive script without private keys");
                 [ #  # ]
     278                 :            :                 }
     279                 :            : 
     280         [ #  # ]:          0 :                 for (const CScript& script : scripts) {
     281         [ #  # ]:          0 :                     CTxDestination dest;
     282 [ #  # ][ #  # ]:          0 :                     if (!ExtractDestination(script, dest)) {
     283                 :            :                         // ExtractDestination no longer returns true for P2PK since it doesn't have a corresponding address
     284                 :            :                         // However combo will output P2PK and should just ignore that script
     285         [ #  # ]:          0 :                         if (scripts.size() > 1 && std::get_if<PubKeyDestination>(&dest)) {
     286                 :          0 :                             continue;
     287                 :            :                         }
     288 [ #  # ][ #  # ]:          0 :                         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Descriptor does not have a corresponding address");
                 [ #  # ]
     289                 :            :                     }
     290                 :            : 
     291 [ #  # ][ #  # ]:          0 :                     addresses.push_back(EncodeDestination(dest));
                 [ #  # ]
     292         [ #  # ]:          0 :                 }
     293                 :          0 :             }
     294                 :            : 
     295                 :            :             // This should not be possible, but an assert seems overkill:
     296 [ #  # ][ #  # ]:          0 :             if (addresses.empty()) {
     297 [ #  # ][ #  # ]:          0 :                 throw JSONRPCError(RPC_MISC_ERROR, "Unexpected empty result");
                 [ #  # ]
     298                 :            :             }
     299                 :            : 
     300                 :          0 :             return addresses;
     301         [ #  # ]:          0 :         },
     302                 :            :     };
     303                 :          0 : }
     304                 :            : 
     305                 :          0 : void RegisterOutputScriptRPCCommands(CRPCTable& t)
     306                 :            : {
     307 [ #  # ][ #  # ]:          0 :     static const CRPCCommand commands[]{
                 [ #  # ]
     308 [ #  # ][ #  # ]:          0 :         {"util", &validateaddress},
     309 [ #  # ][ #  # ]:          0 :         {"util", &createmultisig},
     310 [ #  # ][ #  # ]:          0 :         {"util", &deriveaddresses},
     311 [ #  # ][ #  # ]:          0 :         {"util", &getdescriptorinfo},
     312                 :            :     };
     313         [ #  # ]:          0 :     for (const auto& c : commands) {
     314                 :          0 :         t.appendCommand(c.name, &c);
     315                 :            :     }
     316                 :          0 : }

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