mirror of
https://github.com/XRPLF/clio.git
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239 lines
9.0 KiB
C++
239 lines
9.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2023, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include "rpc/handlers/Ledger.hpp"
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#include "data/Types.hpp"
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#include "rpc/JS.hpp"
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#include "rpc/RPCHelpers.hpp"
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#include "rpc/common/Types.hpp"
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#include "util/Assert.hpp"
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#include "util/JsonUtils.hpp"
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#include <boost/json/array.hpp>
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#include <boost/json/conversion.hpp>
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#include <boost/json/kind.hpp>
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#include <boost/json/object.hpp>
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#include <boost/json/string.hpp>
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#include <boost/json/value.hpp>
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#include <boost/json/value_to.hpp>
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#include <xrpl/basics/chrono.h>
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#include <xrpl/basics/strHex.h>
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#include <xrpl/protocol/LedgerHeader.h>
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#include <xrpl/protocol/SField.h>
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#include <xrpl/protocol/STLedgerEntry.h>
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#include <xrpl/protocol/Serializer.h>
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#include <xrpl/protocol/TxFormats.h>
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#include <xrpl/protocol/jss.h>
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#include <algorithm>
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#include <cstdint>
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#include <iterator>
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#include <string>
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#include <utility>
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namespace rpc {
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LedgerHandler::Result
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LedgerHandler::process(LedgerHandler::Input const& input, Context const& ctx) const
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{
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auto const range = sharedPtrBackend_->fetchLedgerRange();
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ASSERT(range.has_value(), "LedgerHandler's ledger range must be available");
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auto const expectedLgrInfo = getLedgerHeaderFromHashOrSeq(
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*sharedPtrBackend_, ctx.yield, input.ledgerHash, input.ledgerIndex, range->maxSequence
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);
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if (!expectedLgrInfo.has_value())
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return Error{expectedLgrInfo.error()};
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auto const& lgrInfo = expectedLgrInfo.value();
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Output output;
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output.header = toJson(lgrInfo, input.binary, ctx.apiVersion);
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if (input.transactions) {
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output.header[JS(transactions)] = boost::json::value(boost::json::array_kind);
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boost::json::array& jsonTxs = output.header.at(JS(transactions)).as_array();
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if (input.expand) {
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auto txns = sharedPtrBackend_->fetchAllTransactionsInLedger(lgrInfo.seq, ctx.yield);
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auto const expandTxJsonV1 = [&](data::TransactionAndMetadata const& tx) {
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if (!input.binary) {
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auto [txn, meta] = toExpandedJson(tx, ctx.apiVersion);
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txn[JS(metaData)] = std::move(meta);
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return txn;
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}
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return toJsonWithBinaryTx(tx, ctx.apiVersion);
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};
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auto const isoTimeStr = ripple::to_string_iso(lgrInfo.closeTime);
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auto const expandTxJsonV2 = [&](data::TransactionAndMetadata const& tx) {
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auto [txn, meta] = toExpandedJson(tx, ctx.apiVersion);
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if (!input.binary) {
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boost::json::object entry;
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entry[JS(validated)] = true;
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if (ctx.apiVersion < 2u) {
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entry[JS(ledger_index)] = std::to_string(lgrInfo.seq);
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} else {
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entry[JS(ledger_index)] = lgrInfo.seq;
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}
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entry[JS(close_time_iso)] = isoTimeStr;
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entry[JS(ledger_hash)] = ripple::strHex(lgrInfo.hash);
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if (txn.contains(JS(hash))) {
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entry[JS(hash)] = txn.at(JS(hash));
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txn.erase(JS(hash));
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}
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entry[JS(tx_json)] = std::move(txn);
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entry[JS(meta)] = std::move(meta);
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return entry;
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}
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auto entry = toJsonWithBinaryTx(tx, ctx.apiVersion);
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if (txn.contains(JS(hash)))
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entry[JS(hash)] = txn.at(JS(hash));
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return entry;
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};
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std::transform(
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std::move_iterator(txns.begin()),
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std::move_iterator(txns.end()),
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std::back_inserter(jsonTxs),
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[&](auto obj) {
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boost::json::object entry = ctx.apiVersion < 2u ? expandTxJsonV1(obj) : expandTxJsonV2(obj);
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if (input.ownerFunds) {
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// check the type of tx
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auto const [tx, meta] = rpc::deserializeTxPlusMeta(obj);
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if (tx and tx->isFieldPresent(ripple::sfTransactionType) and
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tx->getTxnType() == ripple::ttOFFER_CREATE) {
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auto const account = tx->getAccountID(ripple::sfAccount);
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auto const amount = tx->getFieldAmount(ripple::sfTakerGets);
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// If the offer create is not self funded then add the
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// owner balance
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if (account != amount.getIssuer()) {
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auto const ownerFunds = accountHolds(
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*sharedPtrBackend_,
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*amendmentCenter_,
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lgrInfo.seq,
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account,
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amount.getCurrency(),
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amount.getIssuer(),
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false, // fhIGNORE_FREEZE from rippled
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ctx.yield
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);
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entry[JS(owner_funds)] = ownerFunds.getText();
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}
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}
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}
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return entry;
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}
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);
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} else {
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auto hashes = sharedPtrBackend_->fetchAllTransactionHashesInLedger(lgrInfo.seq, ctx.yield);
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std::transform(
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std::move_iterator(hashes.begin()),
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std::move_iterator(hashes.end()),
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std::back_inserter(jsonTxs),
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[](auto hash) { return boost::json::string(ripple::strHex(hash)); }
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);
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}
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}
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if (input.diff) {
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output.header["diff"] = boost::json::value(boost::json::array_kind);
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boost::json::array& jsonDiff = output.header.at("diff").as_array();
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auto diff = sharedPtrBackend_->fetchLedgerDiff(lgrInfo.seq, ctx.yield);
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for (auto const& obj : diff) {
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boost::json::object entry;
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entry["object_id"] = ripple::strHex(obj.key);
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if (input.binary) {
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entry["object"] = ripple::strHex(obj.blob);
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} else if (!obj.blob.empty()) {
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ripple::STLedgerEntry const sle{ripple::SerialIter{obj.blob.data(), obj.blob.size()}, obj.key};
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entry["object"] = toJson(sle);
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} else {
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entry["object"] = "";
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}
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jsonDiff.push_back(std::move(entry));
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}
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}
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output.ledgerHash = ripple::strHex(lgrInfo.hash);
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output.ledgerIndex = lgrInfo.seq;
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return output;
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}
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void
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tag_invoke(boost::json::value_from_tag, boost::json::value& jv, LedgerHandler::Output const& output)
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{
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jv = boost::json::object{
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{JS(ledger_hash), output.ledgerHash},
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{JS(ledger_index), output.ledgerIndex},
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{JS(validated), output.validated},
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{JS(ledger), output.header},
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};
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}
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LedgerHandler::Input
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tag_invoke(boost::json::value_to_tag<LedgerHandler::Input>, boost::json::value const& jv)
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{
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auto input = LedgerHandler::Input{};
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auto const& jsonObject = jv.as_object();
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if (jsonObject.contains(JS(ledger_hash)))
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input.ledgerHash = boost::json::value_to<std::string>(jv.at(JS(ledger_hash)));
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if (jsonObject.contains(JS(ledger_index))) {
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if (!jsonObject.at(JS(ledger_index)).is_string()) {
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input.ledgerIndex = util::integralValueAs<uint32_t>(jv.at(JS(ledger_index)));
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} else if (jsonObject.at(JS(ledger_index)).as_string() != "validated") {
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input.ledgerIndex = std::stoi(boost::json::value_to<std::string>(jv.at(JS(ledger_index))));
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}
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}
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if (jsonObject.contains(JS(transactions)))
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input.transactions = jv.at(JS(transactions)).as_bool();
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if (jsonObject.contains(JS(binary)))
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input.binary = jv.at(JS(binary)).as_bool();
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if (jsonObject.contains(JS(expand)))
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input.expand = jv.at(JS(expand)).as_bool();
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if (jsonObject.contains(JS(owner_funds)))
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input.ownerFunds = jv.at(JS(owner_funds)).as_bool();
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if (jsonObject.contains("diff"))
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input.diff = jv.at("diff").as_bool();
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return input;
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}
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} // namespace rpc
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