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CJ Cobb
2021-08-02 15:49:09 -04:00
parent 26530b0cfa
commit 56e81eb1d8
42 changed files with 382 additions and 666 deletions
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170
src/rpc/handlers/LedgerData.cpp Normal file
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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012-2014 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <ripple/app/ledger/LedgerToJson.h>
#include <ripple/protocol/STLedgerEntry.h>
#include <boost/json.hpp>
#include <rpc/RPCHelpers.h>
#include <backend/BackendInterface.h>
// Get state nodes from a ledger
// Inputs:
// limit: integer, maximum number of entries
// marker: opaque, resume point
// binary: boolean, format
// type: string // optional, defaults to all ledger node types
// Outputs:
// ledger_hash: chosen ledger's hash
// ledger_index: chosen ledger's index
// state: array of state nodes
// marker: resume point, if any
//
//
namespace RPC
{
Result
doLedgerData(Context const& context)
{
auto request = context.params;
boost::json::object response = {};
bool binary = false;
if(request.contains("binary"))
{
if(!request.at("binary").is_bool())
return Status{Error::rpcINVALID_PARAMS, "binaryFlagNotBool"};
binary = request.at("binary").as_bool();
}
std::size_t limit = binary ? 2048 : 256;
if(request.contains("limit"))
{
if(!request.at("limit").is_int64())
return Status{Error::rpcINVALID_PARAMS, "limitNotInteger"};
limit = value_to<int>(request.at("limit"));
}
std::optional<ripple::uint256> cursor;
if(request.contains("cursor"))
{
if(!request.at("cursor").is_string())
return Status{Error::rpcINVALID_PARAMS, "cursorNotString"};
BOOST_LOG_TRIVIAL(debug) << __func__ << " : parsing cursor";
cursor = ripple::uint256{};
if(!cursor->parseHex(request.at("cursor").as_string().c_str()))
return Status{Error::rpcINVALID_PARAMS, "cursorMalformed"};
}
auto v = ledgerInfoFromRequest(context);
if (auto status = std::get_if<Status>(&v))
return *status;
auto lgrInfo = std::get<ripple::LedgerInfo>(v);
Backend::LedgerPage page;
auto start = std::chrono::system_clock::now();
page = context.backend->fetchLedgerPage(cursor, lgrInfo.seq, limit);
auto end = std::chrono::system_clock::now();
auto time =
std::chrono::duration_cast<std::chrono::microseconds>(end - start)
.count();
boost::json::object header;
if(!cursor)
{
if (binary)
{
header["ledger_data"] = ripple::strHex(ledgerInfoToBlob(lgrInfo));
}
else
{
header["accepted"] = true;
header["account_hash"] = ripple::strHex(lgrInfo.accountHash);
header["close_flags"] = lgrInfo.closeFlags;
header["close_time"] = lgrInfo.closeTime.time_since_epoch().count();
header["close_time_human"] = ripple::to_string(lgrInfo.closeTime);;
header["close_time_resolution"] = lgrInfo.closeTimeResolution.count();
header["closed"] = true;
header["hash"] = ripple::strHex(lgrInfo.hash);
header["ledger_hash"] = ripple::strHex(lgrInfo.hash);
header["ledger_index"] = std::to_string(lgrInfo.seq);
header["parent_close_time"] =
lgrInfo.parentCloseTime.time_since_epoch().count();
header["parent_hash"] = ripple::strHex(lgrInfo.parentHash);
header["seqNum"] = std::to_string(lgrInfo.seq);
header["totalCoins"] = ripple::to_string(lgrInfo.drops);
header["total_coins"] = ripple::to_string(lgrInfo.drops);
header["transaction_hash"] = ripple::strHex(lgrInfo.txHash);
response["ledger"] = header;
}
}
response["ledger_hash"] = ripple::strHex(lgrInfo.hash);
response["ledger_index"] = lgrInfo.seq;
boost::json::array objects;
std::vector<Backend::LedgerObject>& results = page.objects;
std::optional<ripple::uint256> const& returnedCursor = page.cursor;
if(returnedCursor)
response["marker"] = ripple::strHex(*returnedCursor);
BOOST_LOG_TRIVIAL(debug)
<< __func__ << " number of results = " << results.size();
for (auto const& [key, object] : results)
{
ripple::STLedgerEntry sle{
ripple::SerialIter{object.data(), object.size()}, key};
if (binary)
{
boost::json::object entry;
entry["data"] = ripple::serializeHex(sle);
entry["index"] = ripple::to_string(sle.key());
objects.push_back(entry);
}
else
objects.push_back(toJson(sle));
}
response["state"] = objects;
if (cursor && page.warning)
{
response["warning"] =
"Periodic database update in progress. Data for this ledger may be "
"incomplete. Data should be complete "
"within a few minutes. Other RPC calls are not affected, "
"regardless of ledger. This "
"warning is only present on the first "
"page of the ledger";
}
return response;
}
} // namespace RPC