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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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bitcoin / src / rest.cpp

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1001        [[fallthrough]];
1002    }
1003
1004    case RESTResponseFormat::BINARY: {
1005        try {
1006            //deserialize only if user sent a request
1007            if (strRequestMutable.size() > 0)
1008            {
1009                if (fInputParsed) //don't allow sending input over URI and HTTP RAW DATA
1010                    return RESTERR(req, HTTP_BAD_REQUEST, "Combination of URI scheme inputs and raw post data is not allowed");
1011
1012                DataStream oss{};
1013                oss << strRequestMutable;
1014                oss >> fCheckMemPool;
1015                oss >> vOutPoints;
1016            }
1017        } catch (const std::ios_base::failure&) {
1018            // abort in case of unreadable binary data
1019            return RESTERR(req, HTTP_BAD_REQUEST, "Parse error");
1020        }
1021        break;
1022    }
1023
1024    case RESTResponseFormat::JSON: {
1025        if (!fInputParsed)
1026            return RESTERR(req, HTTP_BAD_REQUEST, "Error: empty request");
1027        break;
1028    }
1029    default: {
1030        return RESTERR(req, HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
1031    }
1032    }
1033
1034    // limit max outpoints
1035    if (vOutPoints.size() > MAX_GETUTXOS_OUTPOINTS)
1036        return RESTERR(req, HTTP_BAD_REQUEST, strprintf("Error: max outpoints exceeded (max: %d, tried: %d)", MAX_GETUTXOS_OUTPOINTS, vOutPoints.size()));
1037
1038    // check spentness and form a bitmap (as well as a JSON capable human-readable string representation)
1039    std::vector<unsigned char> bitmap;
1040    std::vector<CCoin> outs;
1041    std::string bitmapStringRepresentation;
1042    std::vector<bool> hits;
1043    bitmap.resize(CeilDiv(vOutPoints.size(), 8u));
1044    ChainstateManager* maybe_chainman = GetChainman(context, req);
1045    if (!maybe_chainman) return false;
1046    ChainstateManager& chainman = *maybe_chainman;
1047    decltype(chainman.ActiveHeight()) active_height;
1048    uint256 active_hash;
1049    {
1050        auto process_utxos = [&vOutPoints, &outs, &hits, &active_height, &active_hash, &chainman](const CCoinsView& view, const CTxMemPool* mempool) EXCLUSIVE_LOCKS_REQUIRED(chainman.GetMutex()) {
1051            for (const COutPoint& vOutPoint : vOutPoints) {
1052                auto coin = !mempool || !mempool->isSpent(vOutPoint) ? view.GetCoin(vOutPoint) : std::nullopt;
1053                hits.push_back(coin.has_value());
1054                if (coin) outs.emplace_back(std::move(*coin));
1055            }
1056            active_height = chainman.ActiveHeight();
1057            active_hash = chainman.ActiveTip()->GetBlockHash();
1058        };
1059
1060        if (fCheckMemPool) {
1061            const CTxMemPool* mempool = GetMemPool(context, req);
1062            if (!mempool) return false;
1063            // use db+mempool as cache backend in case user likes to query mempool
1064            LOCK2(cs_main, mempool->cs);
1065            CCoinsViewCache& viewChain = chainman.ActiveChainstate().CoinsTip();
1066            CCoinsViewMemPool viewMempool(&viewChain, *mempool);
1067            process_utxos(viewMempool, mempool);
1068        } else {
1069            LOCK(cs_main);
1070            process_utxos(chainman.ActiveChainstate().CoinsTip(), nullptr);
1071        }
1072
1073        for (size_t i = 0; i < hits.size(); ++i) {
1074            const bool hit = hits[i];
1075            bitmapStringRepresentation.append(hit ? "1" : "0"); // form a binary string representation (human-readable for json output)
1076            bitmap[i / 8] |= ((uint8_t)hit) << (i % 8);
1077        }
1078    }
1079
1080    switch (rf) {
1081    case RESTResponseFormat::BINARY: {
1082        // serialize data
1083        // use exact same output as mentioned in Bip64
1084        DataStream ssGetUTXOResponse{};
1085        ssGetUTXOResponse << active_height << active_hash << bitmap << outs;
1086
1087        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1088        req->WriteHeader("Content-Type", "application/octet-stream");
1089        req->WriteReply(HTTP_OK, ssGetUTXOResponse);
1090        return true;
1091    }
1092
1093    case RESTResponseFormat::HEX: {
1094        DataStream ssGetUTXOResponse{};
1095        ssGetUTXOResponse << active_height << active_hash << bitmap << outs;
1096        std::string strHex = HexStr(ssGetUTXOResponse) + "\n";
1097
1098        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1099        req->WriteHeader("Content-Type", "text/plain");
1100        req->WriteReply(HTTP_OK, strHex);
1101        return true;
1102    }
1103
1104    case RESTResponseFormat::JSON: {
1105        UniValue objGetUTXOResponse(UniValue::VOBJ);
1106
1107        // pack in some essentials
1108        // use more or less the same output as mentioned in Bip64
1109        objGetUTXOResponse.pushKV("chainHeight", active_height);
1110        objGetUTXOResponse.pushKV("chaintipHash", active_hash.GetHex());
1111        objGetUTXOResponse.pushKV("bitmap", bitmapStringRepresentation);
1112
1113        UniValue utxos(UniValue::VARR);
1114        for (const CCoin& coin : outs) {
1115            UniValue utxo(UniValue::VOBJ);
1116            utxo.pushKV("height", coin.nHeight);
1117            utxo.pushKV("value", ValueFromAmount(coin.out.nValue));
1118
1119            // include the script in a json output
1120            UniValue o(UniValue::VOBJ);
1121            ScriptToUniv(coin.out.scriptPubKey, /*out=*/o, /*include_hex=*/true, /*include_address=*/true);
1122            utxo.pushKV("scriptPubKey", std::move(o));
1123            utxos.push_back(std::move(utxo));
1124        }
1125        objGetUTXOResponse.pushKV("utxos", std::move(utxos));
1126
1127        // return json string
1128        std::string strJSON = objGetUTXOResponse.write() + "\n";
1129        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1130        req->WriteHeader("Content-Type", "application/json");
1131        req->WriteReply(HTTP_OK, strJSON);
1132        return true;
1133    }
1134    default: {
1135        return RESTERR(req, HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
1136    }
1137    }
1138}
1139
1140static bool rest_blockhash_by_height(const std::any& context, HTTPRequest* req,
1141                       const std::string& str_uri_part)
1142{
1143    if (!CheckWarmup(req)) return false;
1144    std::string height_str;
1145    const RESTResponseFormat rf = ParseDataFormat(height_str, str_uri_part);
1146
1147    const auto blockheight{ToIntegral<int32_t>(height_str)};
1148    if (!blockheight || *blockheight < 0) {
1149        return RESTERR(req, HTTP_BAD_REQUEST, "Invalid height: " + SanitizeString(height_str, SAFE_CHARS_URI));
1150    }
1151
1152    CBlockIndex* pblockindex = nullptr;
1153    {
1154        ChainstateManager* maybe_chainman = GetChainman(context, req);
1155        if (!maybe_chainman) return false;
1156        ChainstateManager& chainman = *maybe_chainman;
1157        LOCK(cs_main);
1158        const CChain& active_chain = chainman.ActiveChain();
1159        if (*blockheight > active_chain.Height()) {
1160            return RESTERR(req, HTTP_NOT_FOUND, "Block height out of range");
1161        }
1162        pblockindex = active_chain[*blockheight];
1163    }
1164    switch (rf) {
1165    case RESTResponseFormat::BINARY: {
1166        DataStream ss_blockhash{};
1167        ss_blockhash << pblockindex->GetBlockHash();
1168        // Do not cache because reorgs can change the response.
1169        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1170        req->WriteHeader("Content-Type", "application/octet-stream");
1171        req->WriteReply(HTTP_OK, ss_blockhash);
1172        return true;
1173    }
1174    case RESTResponseFormat::HEX: {
1175        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1176        req->WriteHeader("Content-Type", "text/plain");
1177        req->WriteReply(HTTP_OK, pblockindex->GetBlockHash().GetHex() + "\n");
1178        return true;
1179    }
1180    case RESTResponseFormat::JSON: {
1181        req->WriteHeader("Cache-Control", REST_CACHE_NO_STORE);
1182        req->WriteHeader("Content-Type", "application/json");
1183        UniValue resp = UniValue(UniValue::VOBJ);
1184        resp.pushKV("blockhash", pblockindex->GetBlockHash().GetHex());
1185        req->WriteReply(HTTP_OK, resp.write() + "\n");
1186        return true;
1187    }
1188    default: {
1189        return RESTERR(req, HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
1190    }
1191    }
1192}
1193
1194static const struct {
1195    const char* prefix;
1196    bool (*handler)(const std::any& context, HTTPRequest* req, const std::string& strReq);
1197} uri_prefixes[] = {
1198    {"/rest/tx/", rest_tx},
1199    {"/rest/block/notxdetails/", rest_block_notxdetails},
1200    {"/rest/block/", rest_block_extended},
1201    {"/rest/blockpart/", rest_block_part},
1202    {"/rest/blockfilter/", rest_block_filter},
1203    {"/rest/blockfilterheaders/", rest_filter_header},
1204    {"/rest/chaininfo", rest_chaininfo},
1205    {"/rest/mempool/", rest_mempool},
1206    {"/rest/headers/", rest_headers},
1207    {"/rest/getutxos", rest_getutxos},
1208    {"/rest/deploymentinfo/", rest_deploymentinfo},
1209    {"/rest/deploymentinfo", rest_deploymentinfo},
1210    {"/rest/blockhashbyheight/", rest_blockhash_by_height},
1211    {"/rest/spenttxouts/", rest_spent_txouts},
1212};
1213
1214void StartREST(const std::any& context)
1215{
1216    for (const auto& up : uri_prefixes) {
1217        auto handler = [context, up](HTTPRequest* req, const std::string& prefix) { return up.handler(context, req, prefix); };
1218        RegisterHTTPHandler(up.prefix, false, handler);
1219    }
1220}
1221
1222void InterruptREST()
1223{
1224}
1225
1226void StopREST()
1227{
1228    for (const auto& up : uri_prefixes) {
1229        UnregisterHTTPHandler(up.prefix, false);
1230    }
1231}
1232

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 5

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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