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Fix RPC book_offers handling of negative balances and self-issued IOUs.

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This commit is contained in:
Arthur Britto
2013-03-03 20:52:28 -08:00
parent de5e6439c3
commit da184a97c4
1 changed files with 100 additions and 81 deletions
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41
src/cpp/ripple/NetworkOPs.cpp
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@@ -1784,7 +1784,16 @@ void NetworkOPs::getBookPage(Ledger::pointer lpLedger, const uint160& uTakerPays
STAmount saDirRate;
// unsigned int iLeft = iLimit;
SLE::pointer sleGetsIssuer = lesActive.entryCache(ltACCOUNT_ROOT, Ledger::getAccountRootIndex(uTakerGetsIssuerID));
if (!sleGetsIssuer)
{
// Order book can not exist if TakerGetsIssuer account does not exist.
nothing();
}
else
{
while (!bDone) {
if (bDirectAdvance) {
bDirectAdvance = false;
@@ -1814,27 +1823,36 @@ void NetworkOPs::getBookPage(Ledger::pointer lpLedger, const uint160& uTakerPays
{
SLE::pointer sleOffer = lesActive.entryCache(ltOFFER, uOfferIndex);
const uint160 uOfferOwnerID = sleOffer->getFieldAccount(sfAccount).getAccountID();
STAmount saTakerGets = sleOffer->getFieldAmount(sfTakerGets);
STAmount saTakerPays = sleOffer->getFieldAmount(sfTakerPays);
STAmount saOwnerFunds;
boost::unordered_map<uint160, STAmount>::const_iterator umBalanceEntry = umBalance.find(uOfferOwnerID);
if (umBalanceEntry == umBalance.end())
if (uTakerGetsIssuerID == uOfferOwnerID)
{
// Did not find balance in table.
STAmount saDefault(uTakerGetsCurrencyID, uTakerGetsIssuerID);
// cLog(lsINFO) << boost::str(boost::format("getBookPage: saDefault=%s") % saDefault.getFullText());
saOwnerFunds = lesActive.accountFunds(uOfferOwnerID, saDefault);
// cLog(lsINFO) << boost::str(boost::format("getBookPage: saOwnerFunds=%s (new)") % saOwnerFunds.getFullText());
// If offer is selling issuer's own IOUs, it is fully funded.
saOwnerFunds = saTakerGets;
}
else
{
boost::unordered_map<uint160, STAmount>::const_iterator umBalanceEntry = umBalance.find(uOfferOwnerID);
if (umBalanceEntry != umBalance.end())
{
// Found in running balance table.
saOwnerFunds = umBalanceEntry->second;
// cLog(lsINFO) << boost::str(boost::format("getBookPage: saOwnerFunds=%s (cached)") % saOwnerFunds.getFullText());
}
else
{
// Did not find balance in table.
STAmount saTakerGets = sleOffer->getFieldAmount(sfTakerGets);
STAmount saTakerPays = sleOffer->getFieldAmount(sfTakerPays);
saOwnerFunds = lesActive.accountHolds(uOfferOwnerID, uTakerGetsCurrencyID, uTakerGetsIssuerID);
// cLog(lsINFO) << boost::str(boost::format("getBookPage: saOwnerFunds=%s (new)") % saOwnerFunds.getFullText());
if (saOwnerFunds.isNegative())
saOwnerFunds.zero();
}
}
Json::Value jvOffer = sleOffer->getJson(0);
@@ -1883,6 +1901,7 @@ void NetworkOPs::getBookPage(Ledger::pointer lpLedger, const uint160& uTakerPays
}
}
}
}
jvResult["offers"] = jvOffers;
// jvResult["marker"] = Json::Value(Json::arrayValue);