TER Transactor::payFee()
{
STAmount saPaid = mTxn.getTransactionFee();
// Only check fee is sufficient when the ledger is open.
if (isSetBit(mParams, tapOPEN_LEDGER) && saPaid < mFeeDue)
{
cLog(lsINFO) << "applyTransaction: insufficient fee";
return telINSUF_FEE_P;
}
if (saPaid.isNegative() || !saPaid.isNative())
return temBAD_FEE;
if (!saPaid) return tesSUCCESS;
// Deduct the fee, so it's not available during the transaction.
// Will only write the account back, if the transaction succeeds.
if (mSourceBalance < saPaid)
{
cLog(lsINFO)
<< boost::str(boost::format("applyTransaction: Delay: insufficient balance: balance=%s paid=%s")
% mSourceBalance.getText()
% saPaid.getText());
return terINSUF_FEE_B;
}
mSourceBalance -= saPaid;
mTxnAccount->setFieldAmount(sfBalance, mSourceBalance);
return tesSUCCESS;
}
// check stuff before you bother to lock the ledger
TER Transactor::preCheck()
{
mTxnAccountID = mTxn.getSourceAccount().getAccountID();
if (!mTxnAccountID)
{
cLog(lsWARNING) << "applyTransaction: bad source id";
return temBAD_SRC_ACCOUNT;
}
// Extract signing key
// Transactions contain a signing key. This allows us to trivially verify a transaction has at least been properly signed
// without going to disk. Each transaction also notes a source account id. This is used to verify that the signing key is
// associated with the account.
// XXX This could be a lot cleaner to prevent unnecessary copying.
mSigningPubKey = RippleAddress::createAccountPublic(mTxn.getSigningPubKey());
// Consistency: really signed.
if ( !isSetBit(mParams, tapNO_CHECK_SIGN) && !mTxn.checkSign(mSigningPubKey))
{
cLog(lsWARNING) << "applyTransaction: Invalid transaction: bad signature";
return temINVALID;
}
return tesSUCCESS;
}
TER ChangeTransactor::preCheck ()
{
mTxnAccountID = mTxn.getSourceAccount ().getAccountID ();
if (mTxnAccountID.isNonZero ())
{
WriteLog (lsWARNING, ChangeTransactor) << "applyTransaction: bad source id";
return temBAD_SRC_ACCOUNT;
}
if (isSetBit (mParams, tapOPEN_LEDGER))
{
WriteLog (lsWARNING, ChangeTransactor) << "Change transaction against open ledger";
return temINVALID;
}
return tesSUCCESS;
}
// This is for debugging not end users. Output names can be changed without warning.
Json::Value PathState::Node::getJson () const
{
Json::Value jvNode (Json::objectValue);
Json::Value jvFlags (Json::arrayValue);
jvNode["type"] = uFlags;
if (isSetBit (uFlags, STPathElement::typeAccount) || !!uAccountID)
jvFlags.append (!!isSetBit (uFlags, STPathElement::typeAccount) == !!uAccountID ? "account" : "-account");
if (isSetBit (uFlags, STPathElement::typeCurrency) || !!uCurrencyID)
jvFlags.append (!!isSetBit (uFlags, STPathElement::typeCurrency) == !!uCurrencyID ? "currency" : "-currency");
if (isSetBit (uFlags, STPathElement::typeIssuer) || !!uIssuerID)
jvFlags.append (!!isSetBit (uFlags, STPathElement::typeIssuer) == !!uIssuerID ? "issuer" : "-issuer");
jvNode["flags"] = jvFlags;
if (!!uAccountID)
jvNode["account"] = RippleAddress::createHumanAccountID (uAccountID);
if (!!uCurrencyID)
jvNode["currency"] = STAmount::createHumanCurrency (uCurrencyID);
if (!!uIssuerID)
jvNode["issuer"] = RippleAddress::createHumanAccountID (uIssuerID);
if (saRevRedeem)
jvNode["rev_redeem"] = saRevRedeem.getFullText ();
if (saRevIssue)
jvNode["rev_issue"] = saRevIssue.getFullText ();
if (saRevDeliver)
jvNode["rev_deliver"] = saRevDeliver.getFullText ();
if (saFwdRedeem)
jvNode["fwd_redeem"] = saFwdRedeem.getFullText ();
if (saFwdIssue)
jvNode["fwd_issue"] = saFwdIssue.getFullText ();
if (saFwdDeliver)
jvNode["fwd_deliver"] = saFwdDeliver.getFullText ();
return jvNode;
}
TER AccountSetTransactor::doApply ()
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet>";
const uint32 uTxFlags = mTxn.getFlags ();
const uint32 uFlagsIn = mTxnAccount->getFieldU32 (sfFlags);
uint32 uFlagsOut = uFlagsIn;
const uint32 uSetFlag = mTxn.getFieldU32 (sfSetFlag);
const uint32 uClearFlag = mTxn.getFieldU32 (sfClearFlag);
// legacy AccountSet flags
bool bSetRequireDest = (uTxFlags & TxFlag::requireDestTag) || (uSetFlag == asfRequireDest);
bool bClearRequireDest = (uTxFlags & tfOptionalDestTag) || (uClearFlag == asfRequireDest);
bool bSetRequireAuth = (uTxFlags & tfRequireAuth) || (uSetFlag == asfRequireAuth);
bool bClearRequireAuth = (uTxFlags & tfOptionalAuth) || (uClearFlag == asfRequireAuth);
bool bSetDisallowXRP = (uTxFlags & tfDisallowXRP) || (uSetFlag == asfDisallowXRP);
bool bClearDisallowXRP = (uTxFlags & tfAllowXRP) || (uClearFlag == asfDisallowXRP);
if (uTxFlags & tfAccountSetMask)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Malformed transaction: Invalid flags set.";
return temINVALID_FLAG;
}
//
// RequireAuth
//
if (bSetRequireAuth && bClearRequireAuth)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (bSetRequireAuth && !isSetBit (uFlagsIn, lsfRequireAuth))
{
if (mTxnAccount->getFieldU32 (sfOwnerCount))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Retry: OwnerCount not zero.";
return isSetBit(mParams, tapRETRY) ? terOWNERS : tecOWNERS;
}
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Set RequireAuth.";
uFlagsOut |= lsfRequireAuth;
}
if (bClearRequireAuth && isSetBit (uFlagsIn, lsfRequireAuth))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Clear RequireAuth.";
uFlagsOut &= ~lsfRequireAuth;
}
//
// RequireDestTag
//
if (bSetRequireDest && bClearRequireDest)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (bSetRequireDest && !isSetBit (uFlagsIn, lsfRequireDestTag))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Set lsfRequireDestTag.";
uFlagsOut |= lsfRequireDestTag;
}
if (bClearRequireDest && isSetBit (uFlagsIn, lsfRequireDestTag))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Clear lsfRequireDestTag.";
uFlagsOut &= ~lsfRequireDestTag;
}
//
// DisallowXRP
//
if (bSetDisallowXRP && bClearDisallowXRP)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (bSetDisallowXRP && !isSetBit (uFlagsIn, lsfDisallowXRP))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Set lsfDisallowXRP.";
uFlagsOut |= lsfDisallowXRP;
}
if (bClearDisallowXRP && isSetBit (uFlagsIn, lsfDisallowXRP))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Clear lsfDisallowXRP.";
uFlagsOut &= ~lsfDisallowXRP;
}
//
// DisableMaster
//
if ((uSetFlag == asfDisableMaster) && (uClearFlag == asfDisableMaster))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if ((uSetFlag == asfDisableMaster) && !isSetBit (uFlagsIn, lsfDisableMaster))
{
if (!mTxnAccount->isFieldPresent (sfRegularKey))
return tecNO_REGULAR_KEY;
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Set lsfDisableMaster.";
uFlagsOut |= lsfDisableMaster;
}
if ((uClearFlag == asfDisableMaster) && isSetBit (uFlagsIn, lsfDisableMaster))
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: Clear lsfDisableMaster.";
uFlagsOut &= ~lsfDisableMaster;
}
//
// EmailHash
//
if (mTxn.isFieldPresent (sfEmailHash))
{
uint128 uHash = mTxn.getFieldH128 (sfEmailHash);
if (!uHash)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: unset email hash";
mTxnAccount->makeFieldAbsent (sfEmailHash);
}
else
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: set email hash";
mTxnAccount->setFieldH128 (sfEmailHash, uHash);
}
}
//
// WalletLocator
//
if (mTxn.isFieldPresent (sfWalletLocator))
{
uint256 uHash = mTxn.getFieldH256 (sfWalletLocator);
if (!uHash)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: unset wallet locator";
mTxnAccount->makeFieldAbsent (sfEmailHash);
}
else
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: set wallet locator";
mTxnAccount->setFieldH256 (sfWalletLocator, uHash);
}
}
//
// MessageKey
//
if (mTxn.isFieldPresent (sfMessageKey))
{
Blob vucPublic = mTxn.getFieldVL (sfMessageKey);
if (vucPublic.size () > PUBLIC_BYTES_MAX)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: message key too long";
return telBAD_PUBLIC_KEY;
}
else
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: set message key";
mTxnAccount->setFieldVL (sfMessageKey, vucPublic);
}
}
//
// Domain
//
if (mTxn.isFieldPresent (sfDomain))
{
Blob vucDomain = mTxn.getFieldVL (sfDomain);
if (vucDomain.empty ())
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: unset domain";
mTxnAccount->makeFieldAbsent (sfDomain);
}
else if (vucDomain.size () > DOMAIN_BYTES_MAX)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: domain too long";
return telBAD_DOMAIN;
}
else
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: set domain";
mTxnAccount->setFieldVL (sfDomain, vucDomain);
}
}
//
// TransferRate
//
if (mTxn.isFieldPresent (sfTransferRate))
{
uint32 uRate = mTxn.getFieldU32 (sfTransferRate);
if (!uRate || uRate == QUALITY_ONE)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: unset transfer rate";
mTxnAccount->makeFieldAbsent (sfTransferRate);
}
else if (uRate > QUALITY_ONE)
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: set transfer rate";
mTxnAccount->setFieldU32 (sfTransferRate, uRate);
}
else
{
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet: bad transfer rate";
return temBAD_TRANSFER_RATE;
}
}
if (uFlagsIn != uFlagsOut)
mTxnAccount->setFieldU32 (sfFlags, uFlagsOut);
WriteLog (lsINFO, AccountSetTransactor) << "AccountSet<";
return tesSUCCESS;
}
TER TrustSetTransactor::doApply ()
{
TER terResult = tesSUCCESS;
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet>";
const STAmount saLimitAmount = mTxn.getFieldAmount (sfLimitAmount);
const bool bQualityIn = mTxn.isFieldPresent (sfQualityIn);
const bool bQualityOut = mTxn.isFieldPresent (sfQualityOut);
const uint160 uCurrencyID = saLimitAmount.getCurrency ();
uint160 uDstAccountID = saLimitAmount.getIssuer ();
const bool bHigh = mTxnAccountID > uDstAccountID; // true, iff current is high account.
uint32 uQualityIn = bQualityIn ? mTxn.getFieldU32 (sfQualityIn) : 0;
uint32 uQualityOut = bQualityOut ? mTxn.getFieldU32 (sfQualityOut) : 0;
if (!saLimitAmount.isLegalNet ())
return temBAD_AMOUNT;
if (bQualityIn && QUALITY_ONE == uQualityIn)
uQualityIn = 0;
if (bQualityOut && QUALITY_ONE == uQualityOut)
uQualityOut = 0;
const uint32 uTxFlags = mTxn.getFlags ();
if (uTxFlags & tfTrustSetMask)
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Malformed transaction: Invalid flags set.";
return temINVALID_FLAG;
}
const bool bSetAuth = isSetBit (uTxFlags, tfSetfAuth);
const bool bSetNoRipple = isSetBit (uTxFlags, tfSetNoRipple);
const bool bClearNoRipple = isSetBit (uTxFlags, tfClearNoRipple);
if (bSetAuth && !isSetBit (mTxnAccount->getFieldU32 (sfFlags), lsfRequireAuth))
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Retry: Auth not required.";
return tefNO_AUTH_REQUIRED;
}
if (saLimitAmount.isNative ())
{
WriteLog (lsINFO, TrustSetTransactor) << boost::str (boost::format ("doTrustSet: Malformed transaction: Native credit limit: %s")
% saLimitAmount.getFullText ());
return temBAD_LIMIT;
}
if (saLimitAmount.isNegative ())
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Malformed transaction: Negative credit limit.";
return temBAD_LIMIT;
}
// Check if destination makes sense.
if (!uDstAccountID || uDstAccountID == ACCOUNT_ONE)
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Malformed transaction: Destination account not specified.";
return temDST_NEEDED;
}
if (mTxnAccountID == uDstAccountID)
{
SLE::pointer selDelete = mEngine->entryCache (ltRIPPLE_STATE, Ledger::getRippleStateIndex (mTxnAccountID, uDstAccountID, uCurrencyID));
if (selDelete)
{
WriteLog (lsWARNING, TrustSetTransactor) << "doTrustSet: Clearing redundant line.";
return mEngine->getNodes ().trustDelete (selDelete, mTxnAccountID, uDstAccountID);
}
else
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Malformed transaction: Can not extend credit to self.";
return temDST_IS_SRC;
}
}
SLE::pointer sleDst = mEngine->entryCache (ltACCOUNT_ROOT, Ledger::getAccountRootIndex (uDstAccountID));
if (!sleDst)
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Delay transaction: Destination account does not exist.";
return tecNO_DST;
}
const uint32 uOwnerCount = mTxnAccount->getFieldU32 (sfOwnerCount);
// The reserve required to create the line.
const uint64 uReserveCreate = (uOwnerCount < 2) ? 0 : mEngine->getLedger ()->getReserve (uOwnerCount + 1);
STAmount saLimitAllow = saLimitAmount;
saLimitAllow.setIssuer (mTxnAccountID);
SLE::pointer sleRippleState = mEngine->entryCache (ltRIPPLE_STATE, Ledger::getRippleStateIndex (mTxnAccountID, uDstAccountID, uCurrencyID));
if (sleRippleState)
{
STAmount saLowBalance;
STAmount saLowLimit;
STAmount saHighBalance;
STAmount saHighLimit;
uint32 uLowQualityIn;
uint32 uLowQualityOut;
uint32 uHighQualityIn;
uint32 uHighQualityOut;
const uint160& uLowAccountID = !bHigh ? mTxnAccountID : uDstAccountID;
const uint160& uHighAccountID = bHigh ? mTxnAccountID : uDstAccountID;
SLE::ref sleLowAccount = !bHigh ? mTxnAccount : sleDst;
SLE::ref sleHighAccount = bHigh ? mTxnAccount : sleDst;
//
// Balances
//
saLowBalance = sleRippleState->getFieldAmount (sfBalance);
saHighBalance = -saLowBalance;
//
// Limits
//
sleRippleState->setFieldAmount (!bHigh ? sfLowLimit : sfHighLimit, saLimitAllow);
saLowLimit = !bHigh ? saLimitAllow : sleRippleState->getFieldAmount (sfLowLimit);
saHighLimit = bHigh ? saLimitAllow : sleRippleState->getFieldAmount (sfHighLimit);
//
// Quality in
//
if (!bQualityIn)
{
// Not setting. Just get it.
uLowQualityIn = sleRippleState->getFieldU32 (sfLowQualityIn);
uHighQualityIn = sleRippleState->getFieldU32 (sfHighQualityIn);
}
else if (uQualityIn)
{
// Setting.
sleRippleState->setFieldU32 (!bHigh ? sfLowQualityIn : sfHighQualityIn, uQualityIn);
uLowQualityIn = !bHigh ? uQualityIn : sleRippleState->getFieldU32 (sfLowQualityIn);
uHighQualityIn = bHigh ? uQualityIn : sleRippleState->getFieldU32 (sfHighQualityIn);
}
else
{
// Clearing.
sleRippleState->makeFieldAbsent (!bHigh ? sfLowQualityIn : sfHighQualityIn);
uLowQualityIn = !bHigh ? 0 : sleRippleState->getFieldU32 (sfLowQualityIn);
uHighQualityIn = bHigh ? 0 : sleRippleState->getFieldU32 (sfHighQualityIn);
}
if (QUALITY_ONE == uLowQualityIn) uLowQualityIn = 0;
if (QUALITY_ONE == uHighQualityIn) uHighQualityIn = 0;
//
// Quality out
//
if (!bQualityOut)
{
// Not setting. Just get it.
uLowQualityOut = sleRippleState->getFieldU32 (sfLowQualityOut);
uHighQualityOut = sleRippleState->getFieldU32 (sfHighQualityOut);
}
else if (uQualityOut)
{
// Setting.
sleRippleState->setFieldU32 (!bHigh ? sfLowQualityOut : sfHighQualityOut, uQualityOut);
uLowQualityOut = !bHigh ? uQualityOut : sleRippleState->getFieldU32 (sfLowQualityOut);
uHighQualityOut = bHigh ? uQualityOut : sleRippleState->getFieldU32 (sfHighQualityOut);
}
else
{
// Clearing.
sleRippleState->makeFieldAbsent (!bHigh ? sfLowQualityOut : sfHighQualityOut);
uLowQualityOut = !bHigh ? 0 : sleRippleState->getFieldU32 (sfLowQualityOut);
uHighQualityOut = bHigh ? 0 : sleRippleState->getFieldU32 (sfHighQualityOut);
}
const uint32 uFlagsIn = sleRippleState->getFieldU32 (sfFlags);
uint32 uFlagsOut = uFlagsIn;
if (bSetNoRipple && !bClearNoRipple && (bHigh ? saHighBalance : saLowBalance).isGEZero())
{
uFlagsOut |= (bHigh ? lsfHighNoRipple : lsfLowNoRipple);
}
else if (bClearNoRipple && !bSetNoRipple)
{
uFlagsOut &= ~(bHigh ? lsfHighNoRipple : lsfLowNoRipple);
}
if (QUALITY_ONE == uLowQualityOut) uLowQualityOut = 0;
if (QUALITY_ONE == uHighQualityOut) uHighQualityOut = 0;
const bool bLowReserveSet = uLowQualityIn || uLowQualityOut ||
isSetBit (uFlagsOut, lsfLowNoRipple) ||
!!saLowLimit || saLowBalance.isPositive ();
const bool bLowReserveClear = !bLowReserveSet;
const bool bHighReserveSet = uHighQualityIn || uHighQualityOut ||
isSetBit (uFlagsOut, lsfHighNoRipple) ||
!!saHighLimit || saHighBalance.isPositive ();
const bool bHighReserveClear = !bHighReserveSet;
const bool bDefault = bLowReserveClear && bHighReserveClear;
const bool bLowReserved = isSetBit (uFlagsIn, lsfLowReserve);
const bool bHighReserved = isSetBit (uFlagsIn, lsfHighReserve);
bool bReserveIncrease = false;
if (bSetAuth)
{
uFlagsOut |= (bHigh ? lsfHighAuth : lsfLowAuth);
}
if (bLowReserveSet && !bLowReserved)
{
// Set reserve for low account.
mEngine->getNodes ().ownerCountAdjust (uLowAccountID, 1, sleLowAccount);
uFlagsOut |= lsfLowReserve;
if (!bHigh)
bReserveIncrease = true;
}
if (bLowReserveClear && bLowReserved)
{
// Clear reserve for low account.
mEngine->getNodes ().ownerCountAdjust (uLowAccountID, -1, sleLowAccount);
uFlagsOut &= ~lsfLowReserve;
}
if (bHighReserveSet && !bHighReserved)
{
// Set reserve for high account.
mEngine->getNodes ().ownerCountAdjust (uHighAccountID, 1, sleHighAccount);
uFlagsOut |= lsfHighReserve;
if (bHigh)
bReserveIncrease = true;
}
if (bHighReserveClear && bHighReserved)
{
// Clear reserve for high account.
mEngine->getNodes ().ownerCountAdjust (uHighAccountID, -1, sleHighAccount);
uFlagsOut &= ~lsfHighReserve;
}
if (uFlagsIn != uFlagsOut)
sleRippleState->setFieldU32 (sfFlags, uFlagsOut);
if (bDefault || CURRENCY_BAD == uCurrencyID)
{
// Delete.
terResult = mEngine->getNodes ().trustDelete (sleRippleState, uLowAccountID, uHighAccountID);
}
else if (bReserveIncrease
&& mPriorBalance.getNValue () < uReserveCreate) // Reserve is not scaled by load.
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Delay transaction: Insufficent reserve to add trust line.";
// Another transaction could provide XRP to the account and then this transaction would succeed.
terResult = tecINSUF_RESERVE_LINE;
}
else
{
mEngine->entryModify (sleRippleState);
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Modify ripple line";
}
}
// Line does not exist.
else if (!saLimitAmount // Setting default limit.
&& (!bQualityIn || !uQualityIn) // Not setting quality in or setting default quality in.
&& (!bQualityOut || !uQualityOut)) // Not setting quality out or setting default quality out.
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Redundant: Setting non-existent ripple line to defaults.";
return tecNO_LINE_REDUNDANT;
}
else if (mPriorBalance.getNValue () < uReserveCreate) // Reserve is not scaled by load.
{
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Delay transaction: Line does not exist. Insufficent reserve to create line.";
// Another transaction could create the account and then this transaction would succeed.
terResult = tecNO_LINE_INSUF_RESERVE;
}
else if (CURRENCY_BAD == uCurrencyID)
{
terResult = temBAD_CURRENCY;
}
else
{
STAmount saBalance = STAmount (uCurrencyID, ACCOUNT_ONE); // Zero balance in currency.
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet: Creating ripple line: "
<< Ledger::getRippleStateIndex (mTxnAccountID, uDstAccountID, uCurrencyID).ToString ();
// Create a new ripple line.
terResult = mEngine->getNodes ().trustCreate (
bHigh,
mTxnAccountID,
uDstAccountID,
Ledger::getRippleStateIndex (mTxnAccountID, uDstAccountID, uCurrencyID),
mTxnAccount,
bSetAuth,
bSetNoRipple && !bClearNoRipple,
saBalance,
saLimitAllow, // Limit for who is being charged.
uQualityIn,
uQualityOut);
}
WriteLog (lsINFO, TrustSetTransactor) << "doTrustSet<";
return terResult;
}
void Transactor::calculateFee ()
{
mFeeDue = STAmount (mEngine->getLedger ()->scaleFeeLoad (calculateBaseFee (), isSetBit (mParams, tapADMIN)));
}
// Set to a canonical path.
// - Remove extra elements
// - Assumes path is expanded.
//
// We do canonicalization to:
// - Prevent waste in the ledger.
// - Allow longer paths to be specified than would otherwise be allowed.
//
// Optimization theory:
// - Can omit elements that the expansion routine derives.
// - Can pack some elements into other elements.
//
// Rules:
// - SendMax if not specified, defaults currency to send and if not sending XRP defaults issuer to sender.
// - All paths start with the sender account.
// - Currency and issuer is from SendMax.
// - All paths end with the destination account.
//
// Optimization:
// - An XRP output implies an offer node or destination node is next.
// - A change in currency implies an offer node.
// - A change in issuer...
void PathState::setCanonical (
const PathState& psExpanded
)
{
assert (false);
saInAct = psExpanded.saInAct;
saOutAct = psExpanded.saOutAct;
const uint160 uMaxCurrencyID = saInAct.getCurrency ();
const uint160 uMaxIssuerID = saInAct.getIssuer ();
const uint160 uOutCurrencyID = saOutAct.getCurrency ();
const uint160 uOutIssuerID = saOutAct.getIssuer ();
unsigned int uNode = 0;
unsigned int uEnd = psExpanded.vpnNodes.size (); // The node, indexed by 0, not to include.
uint160 uDstAccountID = psExpanded.vpnNodes[uEnd].uAccountID; // FIXME: This can't be right
uint160 uAccountID = psExpanded.vpnNodes[0].uAccountID;
uint160 uCurrencyID = uMaxCurrencyID;
uint160 uIssuerID = uMaxIssuerID;
// Node 0 is a composite of the sending account and saInAct.
++uNode; // skip node 0
// Last node is implied: Always skip last node
--uEnd; // skip last node
// saInAct
// - currency is always the same as vpnNodes[0].
#if 1
if (uNode != uEnd && uMaxIssuerID != uAccountID)
{
// saInAct issuer is not the sender. This forces an implied node.
// WriteLog (lsDEBUG, RippleCalc) << boost::str(boost::format("setCanonical: in diff: uNode=%d uEnd=%d") % uNode % uEnd);
// skip node 1
uIssuerID = psExpanded.vpnNodes[uNode].uIssuerID;
++uNode;
}
#else
if (uNode != uEnd)
{
// Have another node
bool bKeep = false;
if (uMaxIssuerID != uAccountID)
{
}
if (uMaxCurrencyID) // Not sending XRP.
{
// Node 1 must be an account.
if (uMaxIssuerID != uAccountID)
{
// Node 1 is required to specify issuer.
bKeep = true;
}
else
{
// Node 1 must be an account
}
}
else
{
// Node 1 must be an order book.
bKeep = true;
}
if (bKeep)
{
uCurrencyID = psExpanded.vpnNodes[uNode].uCurrencyID;
uIssuerID = psExpanded.vpnNodes[uNode].uIssuerID;
++uNode; // Keep it.
}
}
#endif
if (uNode != uEnd && !!uOutCurrencyID && uOutIssuerID != uDstAccountID)
{
// WriteLog (lsDEBUG, RippleCalc) << boost::str(boost::format("setCanonical: out diff: uNode=%d uEnd=%d") % uNode % uEnd);
// The next to last node is saOutAct if an issuer different from receiver is supplied.
// The next to last node can be implied.
--uEnd;
}
const Node& pnEnd = psExpanded.vpnNodes[uEnd];
if (uNode != uEnd
&& !pnEnd.uAccountID && pnEnd.uCurrencyID == uOutCurrencyID && pnEnd.uIssuerID == uOutIssuerID)
{
// The current end node is an offer converting to saOutAct's currency and issuer and can be implied.
// WriteLog (lsDEBUG, RippleCalc) << boost::str(boost::format("setCanonical: out offer: uNode=%d uEnd=%d") % uNode % uEnd);
--uEnd;
}
// Do not include uEnd.
for (; uNode != uEnd; ++uNode)
{
// WriteLog (lsDEBUG, RippleCalc) << boost::str(boost::format("setCanonical: loop: uNode=%d uEnd=%d") % uNode % uEnd);
const Node& pnPrv = psExpanded.vpnNodes[uNode - 1];
const Node& pnCur = psExpanded.vpnNodes[uNode];
const Node& pnNxt = psExpanded.vpnNodes[uNode + 1];
const bool bCurAccount = isSetBit (pnCur.uFlags, STPathElement::typeAccount);
bool bSkip = false;
if (bCurAccount)
{
// Currently at an account.
// Output is non-XRP and issuer is account.
if (!!pnCur.uCurrencyID && pnCur.uIssuerID == pnCur.uAccountID)
{
// Account issues itself.
// XXX Not good enough. Previous account must mention it.
bSkip = true;
}
}
else
{
// Currently at an offer.
const bool bPrvAccount = isSetBit (pnPrv.uFlags, STPathElement::typeAccount);
const bool bNxtAccount = isSetBit (pnNxt.uFlags, STPathElement::typeAccount);
if (bPrvAccount && bNxtAccount // Offer surrounded by accounts.
&& pnPrv.uCurrencyID != pnNxt.uCurrencyID)
{
// Offer can be implied by currency change.
// XXX What about issuer?
bSkip = true;
}
}
if (!bSkip)
{
// Copy node
Node pnNew;
bool bSetAccount = bCurAccount;
bool bSetCurrency = uCurrencyID != pnCur.uCurrencyID;
// XXX What if we need the next account because we want to skip it?
bool bSetIssuer = !uCurrencyID && uIssuerID != pnCur.uIssuerID;
pnNew.uFlags = (bSetAccount ? STPathElement::typeAccount : 0)
| (bSetCurrency ? STPathElement::typeCurrency : 0)
| (bSetIssuer ? STPathElement::typeIssuer : 0);
if (bSetAccount)
pnNew.uAccountID = pnCur.uAccountID;
if (bSetCurrency)
{
pnNew.uCurrencyID = pnCur.uCurrencyID;
uCurrencyID = pnNew.uCurrencyID;
}
if (bSetIssuer)
pnNew.uIssuerID = pnCur.uIssuerID;
// XXX ^^^ What about setting uIssuerID?
if (bSetCurrency && !uCurrencyID)
uIssuerID.zero ();
vpnNodes.push_back (pnNew);
}
}
WriteLog (lsDEBUG, RippleCalc) << boost::str (boost::format ("setCanonical: in=%s/%s out=%s/%s %s")
% STAmount::createHumanCurrency (uMaxCurrencyID)
% RippleAddress::createHumanAccountID (uMaxIssuerID)
% STAmount::createHumanCurrency (uOutCurrencyID)
% RippleAddress::createHumanAccountID (uOutIssuerID)
% getJson ());
}
// Append a node and insert before it any implied nodes.
// Offers may go back to back.
// <-- terResult: tesSUCCESS, temBAD_PATH, terNO_ACCOUNT, terNO_AUTH, terNO_LINE, tecPATH_DRY
TER PathState::pushNode (
const int iType,
const uint160& uAccountID,
const uint160& uCurrencyID,
const uint160& uIssuerID)
{
Node pnCur;
const bool bFirst = vpnNodes.empty ();
const Node& pnPrv = bFirst ? Node () : vpnNodes.back ();
// true, iff node is a ripple account. false, iff node is an offer node.
const bool bAccount = isSetBit (iType, STPathElement::typeAccount);
// true, iff currency supplied.
// Currency is specified for the output of the current node.
const bool bCurrency = isSetBit (iType, STPathElement::typeCurrency);
// Issuer is specified for the output of the current node.
const bool bIssuer = isSetBit (iType, STPathElement::typeIssuer);
TER terResult = tesSUCCESS;
WriteLog (lsTRACE, RippleCalc) << "pushNode> "
<< iType
<< ": " << (bAccount ? RippleAddress::createHumanAccountID (uAccountID) : "-")
<< " " << (bCurrency ? STAmount::createHumanCurrency (uCurrencyID) : "-")
<< "/" << (bIssuer ? RippleAddress::createHumanAccountID (uIssuerID) : "-");
pnCur.uFlags = iType;
pnCur.uCurrencyID = bCurrency ? uCurrencyID : pnPrv.uCurrencyID;
if (iType & ~STPathElement::typeValidBits)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: bad bits.";
terResult = temBAD_PATH;
}
else if (bIssuer && !pnCur.uCurrencyID)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: issuer specified for XRP.";
terResult = temBAD_PATH;
}
else if (bIssuer && !uIssuerID)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: specified bad issuer.";
terResult = temBAD_PATH;
}
else if (!bAccount && !bCurrency && !bIssuer)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: offer must specify at least currency or issuer.";
terResult = temBAD_PATH;
}
else if (bAccount)
{
// Account link
pnCur.uAccountID = uAccountID;
pnCur.uIssuerID = bIssuer
? uIssuerID
: !!pnCur.uCurrencyID
? uAccountID
: ACCOUNT_XRP;
pnCur.saRevRedeem = STAmount (pnCur.uCurrencyID, uAccountID);
pnCur.saRevIssue = STAmount (pnCur.uCurrencyID, uAccountID);
pnCur.saRevDeliver = STAmount (pnCur.uCurrencyID, pnCur.uIssuerID);
pnCur.saFwdDeliver = pnCur.saRevDeliver;
if (bFirst)
{
// The first node is always correct as is.
nothing ();
}
else if (!uAccountID)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: specified bad account.";
terResult = temBAD_PATH;
}
else
{
// Add required intermediate nodes to deliver to current account.
WriteLog (lsTRACE, RippleCalc) << "pushNode: imply for account.";
terResult = pushImply (
pnCur.uAccountID, // Current account.
pnCur.uCurrencyID, // Wanted currency.
!!pnCur.uCurrencyID ? uAccountID : ACCOUNT_XRP); // Account as wanted issuer.
// Note: pnPrv may no longer be the immediately previous node.
}
if (tesSUCCESS == terResult && !vpnNodes.empty ())
{
const Node& pnBck = vpnNodes.back ();
bool bBckAccount = isSetBit (pnBck.uFlags, STPathElement::typeAccount);
if (bBckAccount)
{
SLE::pointer sleRippleState = lesEntries.entryCache (ltRIPPLE_STATE, Ledger::getRippleStateIndex (pnBck.uAccountID, pnCur.uAccountID, pnPrv.uCurrencyID));
if (!sleRippleState)
{
WriteLog (lsTRACE, RippleCalc) << "pushNode: No credit line between "
<< RippleAddress::createHumanAccountID (pnBck.uAccountID)
<< " and "
<< RippleAddress::createHumanAccountID (pnCur.uAccountID)
<< " for "
<< STAmount::createHumanCurrency (pnCur.uCurrencyID)
<< "." ;
WriteLog (lsTRACE, RippleCalc) << getJson ();
terResult = terNO_LINE;
}
else
{
WriteLog (lsTRACE, RippleCalc) << "pushNode: Credit line found between "
<< RippleAddress::createHumanAccountID (pnBck.uAccountID)
<< " and "
<< RippleAddress::createHumanAccountID (pnCur.uAccountID)
<< " for "
<< STAmount::createHumanCurrency (pnCur.uCurrencyID)
<< "." ;
SLE::pointer sleBck = lesEntries.entryCache (ltACCOUNT_ROOT, Ledger::getAccountRootIndex (pnBck.uAccountID));
bool bHigh = pnBck.uAccountID > pnCur.uAccountID;
if (!sleBck)
{
WriteLog (lsWARNING, RippleCalc) << "pushNode: delay: can't receive IOUs from non-existent issuer: " << RippleAddress::createHumanAccountID (pnBck.uAccountID);
terResult = terNO_ACCOUNT;
}
else if ((isSetBit (sleBck->getFieldU32 (sfFlags), lsfRequireAuth)
&& !isSetBit (sleRippleState->getFieldU32 (sfFlags), (bHigh ? lsfHighAuth : lsfLowAuth)))
&& sleRippleState->getFieldAmount(sfBalance).isZero()) // CHECKME
{
WriteLog (lsWARNING, RippleCalc) << "pushNode: delay: can't receive IOUs from issuer without auth.";
terResult = terNO_AUTH;
}
else if (isSetBit (sleRippleState->getFieldU32 (sfFlags), bHigh ? lsfHighNoRipple : lsfLowNoRipple) &&
(vpnNodes.size() > 1))
{ // If the link leaves the side that set no ripple, it must be the first link
WriteLog (lsWARNING, RippleCalc) << "pushNode: illegal use of noRipple link";
terResult = terNO_AUTH;
}
if (tesSUCCESS == terResult)
{
STAmount saOwed = lesEntries.rippleOwed (pnCur.uAccountID, pnBck.uAccountID, pnCur.uCurrencyID);
STAmount saLimit;
if (!saOwed.isPositive ()
&& -saOwed >= (saLimit = lesEntries.rippleLimit (pnCur.uAccountID, pnBck.uAccountID, pnCur.uCurrencyID)))
{
WriteLog (lsWARNING, RippleCalc) << boost::str (boost::format ("pushNode: dry: saOwed=%s saLimit=%s")
% saOwed
% saLimit);
terResult = tecPATH_DRY;
}
}
}
}
}
if (tesSUCCESS == terResult)
{
vpnNodes.push_back (pnCur);
}
}
else
{
// Offer link
// Offers bridge a change in currency & issuer or just a change in issuer.
pnCur.uIssuerID = bIssuer
? uIssuerID
: !!pnCur.uCurrencyID
? !!pnPrv.uIssuerID
? pnPrv.uIssuerID // Default to previous issuer
: pnPrv.uAccountID // Or previous account if no previous issuer.
: ACCOUNT_XRP;
pnCur.saRateMax = saZero;
pnCur.saRevDeliver = STAmount (pnCur.uCurrencyID, pnCur.uIssuerID);
pnCur.saFwdDeliver = pnCur.saRevDeliver;
if (!!pnCur.uCurrencyID != !!pnCur.uIssuerID)
{
WriteLog (lsDEBUG, RippleCalc) << "pushNode: currency is inconsistent with issuer.";
terResult = temBAD_PATH;
}
else if (!!pnPrv.uAccountID)
{
// Previous is an account.
WriteLog (lsTRACE, RippleCalc) << "pushNode: imply for offer.";
// Insert intermediary issuer account if needed.
terResult = pushImply (
ACCOUNT_XRP, // Rippling, but offers don't have an account.
pnPrv.uCurrencyID,
pnPrv.uIssuerID);
}
if (tesSUCCESS == terResult)
{
vpnNodes.push_back (pnCur);
}
}
WriteLog (lsTRACE, RippleCalc) << boost::str (boost::format ("pushNode< : %s") % transToken (terResult));
return terResult;
}
TER AccountSetTransactor::doApply()
{
cLog(lsINFO) << "AccountSet>";
const uint32 uTxFlags = mTxn.getFlags();
const uint32 uFlagsIn = mTxnAccount->getFieldU32(sfFlags);
uint32 uFlagsOut = uFlagsIn;
if (uTxFlags & tfAccountSetMask)
{
cLog(lsINFO) << "AccountSet: Malformed transaction: Invalid flags set.";
return temINVALID_FLAG;
}
//
// RequireAuth
//
if ((tfRequireAuth|tfOptionalAuth) == (uTxFlags & (tfRequireAuth|tfOptionalAuth)))
{
cLog(lsINFO) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if ((uTxFlags & tfRequireAuth) && !isSetBit(uFlagsIn, lsfRequireAuth))
{
if (mTxn.getFieldU32(sfOwnerCount))
{
cLog(lsINFO) << "AccountSet: Retry: OwnerCount not zero.";
return terOWNERS;
}
cLog(lsINFO) << "AccountSet: Set RequireAuth.";
uFlagsOut |= lsfRequireAuth;
}
if (uTxFlags & tfOptionalAuth)
{
cLog(lsINFO) << "AccountSet: Clear RequireAuth.";
uFlagsOut &= ~lsfRequireAuth;
}
//
// RequireDestTag
//
if ((tfRequireDestTag|tfOptionalDestTag) == (uTxFlags & (tfRequireDestTag|tfOptionalDestTag)))
{
cLog(lsINFO) << "AccountSet: Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (uTxFlags & tfRequireDestTag)
{
cLog(lsINFO) << "AccountSet: Set RequireDestTag.";
uFlagsOut |= lsfRequireDestTag;
}
if (uTxFlags & tfOptionalDestTag)
{
cLog(lsINFO) << "AccountSet: Clear RequireDestTag.";
uFlagsOut &= ~lsfRequireDestTag;
}
if (uFlagsIn != uFlagsOut)
mTxnAccount->setFieldU32(sfFlags, uFlagsOut);
//
// EmailHash
//
if (mTxn.isFieldPresent(sfEmailHash))
{
uint128 uHash = mTxn.getFieldH128(sfEmailHash);
if (!uHash)
{
cLog(lsINFO) << "AccountSet: unset email hash";
mTxnAccount->makeFieldAbsent(sfEmailHash);
}
else
{
cLog(lsINFO) << "AccountSet: set email hash";
mTxnAccount->setFieldH128(sfEmailHash, uHash);
}
}
//
// WalletLocator
//
if (mTxn.isFieldPresent(sfWalletLocator))
{
uint256 uHash = mTxn.getFieldH256(sfWalletLocator);
if (!uHash)
{
cLog(lsINFO) << "AccountSet: unset wallet locator";
mTxnAccount->makeFieldAbsent(sfEmailHash);
}
else
{
cLog(lsINFO) << "AccountSet: set wallet locator";
mTxnAccount->setFieldH256(sfWalletLocator, uHash);
}
}
//
// MessageKey
//
if (mTxn.isFieldPresent(sfMessageKey))
{
std::vector<unsigned char> vucPublic = mTxn.getFieldVL(sfMessageKey);
if (vucPublic.size() > PUBLIC_BYTES_MAX)
{
cLog(lsINFO) << "AccountSet: message key too long";
return telBAD_PUBLIC_KEY;
}
else
{
cLog(lsINFO) << "AccountSet: set message key";
mTxnAccount->setFieldVL(sfMessageKey, vucPublic);
}
}
//
// Domain
//
if (mTxn.isFieldPresent(sfDomain))
{
std::vector<unsigned char> vucDomain = mTxn.getFieldVL(sfDomain);
if (vucDomain.empty())
{
cLog(lsINFO) << "AccountSet: unset domain";
mTxnAccount->makeFieldAbsent(sfDomain);
}
else if (vucDomain.size() > DOMAIN_BYTES_MAX)
{
cLog(lsINFO) << "AccountSet: domain too long";
return telBAD_DOMAIN;
}
else
{
cLog(lsINFO) << "AccountSet: set domain";
mTxnAccount->setFieldVL(sfDomain, vucDomain);
}
}
//
// TransferRate
//
if (mTxn.isFieldPresent(sfTransferRate))
{
uint32 uRate = mTxn.getFieldU32(sfTransferRate);
if (!uRate || uRate == QUALITY_ONE)
{
cLog(lsINFO) << "AccountSet: unset transfer rate";
mTxnAccount->makeFieldAbsent(sfTransferRate);
}
else if (uRate > QUALITY_ONE)
{
cLog(lsINFO) << "AccountSet: set transfer rate";
mTxnAccount->setFieldU32(sfTransferRate, uRate);
}
else
{
cLog(lsINFO) << "AccountSet: bad transfer rate";
return temBAD_TRANSFER_RATE;
}
}
cLog(lsINFO) << "AccountSet<";
return tesSUCCESS;
}
