mirror of
https://github.com/Xahau/xahaud.git
synced 2025-12-06 17:27:52 +00:00
2f485672fa
All AccountID functionality is removed from RippleAddress and
replaced with free functions. The AccountID to string conversion
cache is factored out as an explicit type with an instance in
the Application object. New base58 conversion functions are used,
with no dependence on OpenSSL.
All types and free functions related to AccountID are consolidated
into one header file. Routines to operate on "tokens" are also
introduced and consolidated into a single header file.
A token one of the cryptographic primitives used in Ripple:
Secret Seed
Server Public Key
Server Secret Key
Account ID
Account Public Key
Account Private Key
and these deprecated primitives:
Account Family Seed
Account Family Generator
359 lines
12 KiB
C++
359 lines
12 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012-2014 Ripple Labs Inc.
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Permission to use, copy, modify, and/or 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 <BeastConfig.h>
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#include <ripple/rpc/impl/RipplePathFind.h>
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#include <ripple/app/main/Application.h>
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#include <ripple/app/paths/AccountCurrencies.h>
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#include <ripple/app/paths/FindPaths.h>
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#include <ripple/app/paths/RippleCalc.h>
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#include <ripple/core/LoadFeeTrack.h>
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#include <ripple/protocol/STParsedJSON.h>
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#include <ripple/protocol/types.h>
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#include <ripple/rpc/impl/LegacyPathFind.h>
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#include <ripple/server/Role.h>
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namespace ripple {
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// This interface is deprecated.
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Json::Value doRipplePathFind (RPC::Context& context)
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{
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RPC::LegacyPathFind lpf (context.role == Role::ADMIN);
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if (!lpf.isOk ())
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return rpcError (rpcTOO_BUSY);
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context.loadType = Resource::feeHighBurdenRPC;
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AccountID raSrc;
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AccountID raDst;
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STAmount saDstAmount;
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Ledger::pointer lpLedger;
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Json::Value jvResult;
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if (getConfig().RUN_STANDALONE ||
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context.params.isMember(jss::ledger) ||
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context.params.isMember(jss::ledger_index) ||
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context.params.isMember(jss::ledger_hash))
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{
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// The caller specified a ledger
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jvResult = RPC::lookupLedger (
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context.params, lpLedger, context.netOps);
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if (!lpLedger)
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return jvResult;
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}
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if (!context.params.isMember (jss::source_account))
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{
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jvResult = rpcError (rpcSRC_ACT_MISSING);
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}
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else if (! deprecatedParseBase58(raSrc,
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context.params[jss::source_account]))
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{
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jvResult = rpcError (rpcSRC_ACT_MALFORMED);
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}
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else if (!context.params.isMember (jss::destination_account))
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{
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jvResult = rpcError (rpcDST_ACT_MISSING);
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}
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else if (! deprecatedParseBase58 (raDst,
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context.params[jss::destination_account]))
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{
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jvResult = rpcError (rpcDST_ACT_MALFORMED);
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}
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else if (
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// Parse saDstAmount.
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!context.params.isMember (jss::destination_amount)
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|| ! amountFromJsonNoThrow(saDstAmount, context.params[jss::destination_amount])
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|| saDstAmount <= zero
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|| (!isXRP(saDstAmount.getCurrency ())
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&& (!saDstAmount.getIssuer () ||
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noAccount() == saDstAmount.getIssuer ())))
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{
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WriteLog (lsINFO, RPCHandler) << "Bad destination_amount.";
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jvResult = rpcError (rpcINVALID_PARAMS);
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}
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else if (
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// Checks on source_currencies.
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context.params.isMember (jss::source_currencies)
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&& (!context.params[jss::source_currencies].isArray ()
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|| !context.params[jss::source_currencies].size ())
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// Don't allow empty currencies.
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)
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{
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WriteLog (lsINFO, RPCHandler) << "Bad source_currencies.";
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jvResult = rpcError (rpcINVALID_PARAMS);
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}
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else
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{
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context.loadType = Resource::feeHighBurdenRPC;
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RippleLineCache::pointer cache;
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if (lpLedger)
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{
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// The caller specified a ledger
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lpLedger = std::make_shared<Ledger> (std::ref (*lpLedger), false);
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cache = std::make_shared<RippleLineCache>(lpLedger);
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}
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else
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{
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// The closed ledger is recent and any nodes made resident
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// have the best chance to persist
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lpLedger = context.netOps.getClosedLedger();
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cache = getApp().getPathRequests().getLineCache(lpLedger, false);
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}
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Json::Value jvSrcCurrencies;
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if (context.params.isMember (jss::source_currencies))
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{
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jvSrcCurrencies = context.params[jss::source_currencies];
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}
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else
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{
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jvSrcCurrencies = buildSrcCurrencies(raSrc, cache);
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}
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// Fill in currencies destination will accept
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Json::Value jvDestCur (Json::arrayValue);
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// TODO(tom): this could be optimized the same way that
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// PathRequest::doUpdate() is - if we don't obsolete this code first.
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auto usDestCurrID = accountDestCurrencies (raDst, cache, true);
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for (auto const& uCurrency: usDestCurrID)
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jvDestCur.append (to_string (uCurrency));
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jvResult[jss::destination_currencies] = jvDestCur;
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jvResult[jss::destination_account] = getApp().accountIDCache().toBase58(raDst);
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int level = getConfig().PATH_SEARCH_OLD;
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if ((getConfig().PATH_SEARCH_MAX > level)
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&& !getApp().getFeeTrack().isLoadedLocal())
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{
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++level;
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}
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if (context.params.isMember(jss::search_depth)
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&& context.params[jss::search_depth].isIntegral())
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{
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int rLev = context.params[jss::search_depth].asInt ();
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if ((rLev < level) || (context.role == Role::ADMIN))
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level = rLev;
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}
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auto contextPaths = context.params.isMember(jss::paths) ?
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boost::optional<Json::Value>(context.params[jss::paths]) :
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boost::optional<Json::Value>(boost::none);
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auto pathFindResult = ripplePathFind(cache, raSrc, raDst, saDstAmount,
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lpLedger, jvSrcCurrencies, contextPaths, level);
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if (!pathFindResult.first)
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return pathFindResult.second;
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// Each alternative differs by source currency.
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jvResult[jss::alternatives] = pathFindResult.second;
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}
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WriteLog (lsDEBUG, RPCHandler)
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<< boost::str (boost::format ("ripple_path_find< %s")
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% jvResult);
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return jvResult;
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}
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Json::Value
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buildSrcCurrencies(AccountID const& account, RippleLineCache::pointer const& cache)
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{
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auto currencies = accountSourceCurrencies(account, cache, true);
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auto jvSrcCurrencies = Json::Value(Json::arrayValue);
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for (auto const& uCurrency : currencies)
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{
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Json::Value jvCurrency(Json::objectValue);
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jvCurrency[jss::currency] = to_string(uCurrency);
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jvSrcCurrencies.append(jvCurrency);
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}
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return jvSrcCurrencies;
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}
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std::pair<bool, Json::Value>
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ripplePathFind (RippleLineCache::pointer const& cache,
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AccountID const& raSrc, AccountID const& raDst,
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STAmount const& saDstAmount, Ledger::pointer const& lpLedger,
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Json::Value const& jvSrcCurrencies,
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boost::optional<Json::Value> const& contextPaths, int const& level)
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{
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FindPaths fp(
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cache,
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raSrc,
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raDst,
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saDstAmount,
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level,
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4); // max paths
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Json::Value jvArray(Json::arrayValue);
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for (unsigned int i = 0; i != jvSrcCurrencies.size(); ++i)
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{
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Json::Value jvSource = jvSrcCurrencies[i];
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Currency uSrcCurrencyID;
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AccountID uSrcIssuerID;
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if (!jvSource.isObject())
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return std::make_pair(false, rpcError(rpcINVALID_PARAMS));
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// Parse mandatory currency.
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if (!jvSource.isMember(jss::currency)
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|| !to_currency(
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uSrcCurrencyID, jvSource[jss::currency].asString()))
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{
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WriteLog(lsINFO, RPCHandler) << "Bad currency.";
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return std::make_pair(false, rpcError(rpcSRC_CUR_MALFORMED));
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}
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if (uSrcCurrencyID.isNonZero())
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uSrcIssuerID = raSrc;
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// Parse optional issuer.
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if (jvSource.isMember(jss::issuer) &&
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((!jvSource[jss::issuer].isString() ||
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!to_issuer(uSrcIssuerID, jvSource[jss::issuer].asString())) ||
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(uSrcIssuerID.isZero() != uSrcCurrencyID.isZero()) ||
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(noAccount() == uSrcIssuerID)))
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{
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WriteLog(lsINFO, RPCHandler) << "Bad issuer.";
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return std::make_pair(false, rpcError(rpcSRC_ISR_MALFORMED));
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}
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STPathSet spsComputed;
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if (contextPaths)
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{
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Json::Value pathSet = Json::objectValue;
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pathSet[jss::Paths] = contextPaths.get();
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STParsedJSONObject paths("pathSet", pathSet);
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if (! paths.object)
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return std::make_pair(false, paths.error);
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else
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{
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spsComputed = paths.object->getFieldPathSet(sfPaths);
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WriteLog(lsTRACE, RPCHandler) << "ripple_path_find: Paths: " <<
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spsComputed.getJson(0);
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}
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}
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STPath fullLiquidityPath;
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auto valid = fp.findPathsForIssue(
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{ uSrcCurrencyID, uSrcIssuerID },
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spsComputed,
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fullLiquidityPath);
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if (!valid)
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{
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WriteLog(lsWARNING, RPCHandler)
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<< "ripple_path_find: No paths found.";
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}
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else
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{
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auto& issuer =
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isXRP(uSrcIssuerID) ?
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isXRP(uSrcCurrencyID) ? // Default to source account.
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xrpAccount() :
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(raSrc)
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: uSrcIssuerID; // Use specifed issuer.
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STAmount saMaxAmount({ uSrcCurrencyID, issuer }, 1);
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saMaxAmount.negate();
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MetaView sandbox(lpLedger, tapNONE);
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auto rc = path::RippleCalc::rippleCalculate(
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sandbox,
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saMaxAmount, // --> Amount to send is unlimited
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// to get an estimate.
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saDstAmount, // --> Amount to deliver.
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raDst, // --> Account to deliver to.
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raSrc, // --> Account sending from.
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spsComputed); // --> Path set.
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WriteLog(lsWARNING, RPCHandler)
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<< "ripple_path_find:"
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<< " saMaxAmount=" << saMaxAmount
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<< " saDstAmount=" << saDstAmount
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<< " saMaxAmountAct=" << rc.actualAmountIn
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<< " saDstAmountAct=" << rc.actualAmountOut;
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if (fullLiquidityPath.size() > 0 &&
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(rc.result() == terNO_LINE || rc.result() == tecPATH_PARTIAL))
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{
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WriteLog(lsDEBUG, PathRequest)
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<< "Trying with an extra path element";
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spsComputed.push_back(fullLiquidityPath);
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reconstruct(sandbox, lpLedger, tapNONE);
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rc = path::RippleCalc::rippleCalculate(
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sandbox,
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saMaxAmount, // --> Amount to send is unlimited
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// to get an estimate.
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saDstAmount, // --> Amount to deliver.
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raDst, // --> Account to deliver to.
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raSrc, // --> Account sending from.
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spsComputed); // --> Path set.
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WriteLog(lsDEBUG, PathRequest)
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<< "Extra path element gives "
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<< transHuman(rc.result());
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}
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if (rc.result() == tesSUCCESS)
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{
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Json::Value jvEntry(Json::objectValue);
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STPathSet spsCanonical;
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// Reuse the expanded as it would need to be calcuated
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// anyway to produce the canonical. (At least unless we
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// make a direct canonical.)
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jvEntry[jss::source_amount] = rc.actualAmountIn.getJson(0);
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jvEntry[jss::paths_canonical] = Json::arrayValue;
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jvEntry[jss::paths_computed] = spsComputed.getJson(0);
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jvArray.append(jvEntry);
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}
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else
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{
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std::string strToken;
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std::string strHuman;
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transResultInfo(rc.result(), strToken, strHuman);
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WriteLog(lsDEBUG, RPCHandler)
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<< "ripple_path_find: "
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<< strToken << " "
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<< strHuman << " "
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<< spsComputed.getJson(0);
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}
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}
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}
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return std::make_pair(true, jvArray);
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}
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} // ripple
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