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Freeze enforcing: (RIPD-399)

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* Set enforce date: September 15, 2014
 * Enforce in stand alone mode
 * Enforce at source
 * Enforce intermediary nodes
 * Enforce global freeze in get paths out
 * Enforce global freeze in create offer
 * Don't consider frozen links a path out
 * Handle in getBookPage
 * Enforce in new offer transactors
This commit is contained in:
David Schwartz
2014-05-27 12:57:49 -07:00
committed by Nik Bougalis
parent 9eb34f542c
commit 7b936de32c
17 changed files with 258 additions and 51 deletions
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61
src/ripple/module/app/ledger/LedgerEntrySet.cpp
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@@ -1221,7 +1221,10 @@ LedgerEntrySet::rippleQualityIn (
// negative.
// <-- IOU's account has of issuer.
STAmount LedgerEntrySet::rippleHolds (
Account const& account, Currency const& currency, Account const& issuer)
Account const& account,
Currency const& currency,
Account const& issuer,
FreezeHandling zeroIfFrozen)
{
STAmount saBalance;
SLE::pointer sleRippleState = entryCache (ltRIPPLE_STATE,
@@ -1231,6 +1234,10 @@ STAmount LedgerEntrySet::rippleHolds (
{
saBalance.clear ({currency, issuer});
}
else if ((zeroIfFrozen == fhZERO_IF_FROZEN) && isFrozen (account, currency, issuer))
{
saBalance.clear (IssueRef (currency, issuer));
}
else if (account > issuer)
{
saBalance = sleRippleState->getFieldAmount (sfBalance);
@@ -1252,7 +1259,10 @@ STAmount LedgerEntrySet::rippleHolds (
//
// <-- saAmount: amount of currency held by account. May be negative.
STAmount LedgerEntrySet::accountHolds (
Account const& account, Currency const& currency, Account const& issuer)
Account const& account,
Currency const& currency,
Account const& issuer,
FreezeHandling zeroIfFrozen)
{
STAmount saAmount;
@@ -1282,7 +1292,7 @@ STAmount LedgerEntrySet::accountHolds (
}
else
{
saAmount = rippleHolds (account, currency, issuer);
saAmount = rippleHolds (account, currency, issuer, zeroIfFrozen);
WriteLog (lsTRACE, LedgerEntrySet) << "accountHolds:" <<
" account=" << to_string (account) <<
@@ -1292,6 +1302,46 @@ STAmount LedgerEntrySet::accountHolds (
return saAmount;
}
bool LedgerEntrySet::isGlobalFrozen (const Account& issuer)
{
if (!enforceFreeze () || isXRP (issuer))
return false;
SLE::pointer sle = entryCache (ltACCOUNT_ROOT, Ledger::getAccountRootIndex (issuer));
if (sle && sle->isFlag (lsfGlobalFreeze))
return true;
return false;
}
// Can the specified account spend the specified currency issued by
// the specified issuer or does the freeze flag prohibit it?
bool LedgerEntrySet::isFrozen(
Account const& account,
Currency const& currency,
Account const& issuer)
{
if (!enforceFreeze () || isXRP (currency))
return false;
SLE::pointer sle = entryCache (ltACCOUNT_ROOT, Ledger::getAccountRootIndex (issuer));
if (sle && sle->isFlag (lsfGlobalFreeze))
return true;
if (issuer != account)
{
// Check if the issuer froze the line
sle = entryCache (ltRIPPLE_STATE,
Ledger::getRippleStateIndex (account, issuer, currency));
if (sle && sle->isFlag ((issuer > account) ? lsfHighFreeze : lsfLowFreeze))
{
return true;
}
}
return false;
}
// Returns the funds available for account for a currency/issuer.
// Use when you need a default for rippling account's currency.
// XXX Should take into account quality?
@@ -1301,7 +1351,7 @@ STAmount LedgerEntrySet::accountHolds (
// If the issuer is the same as account, funds are unlimited, use result is
// saDefault.
STAmount LedgerEntrySet::accountFunds (
Account const& account, const STAmount& saDefault)
Account const& account, const STAmount& saDefault, FreezeHandling zeroIfFrozen)
{
STAmount saFunds;
@@ -1317,7 +1367,8 @@ STAmount LedgerEntrySet::accountFunds (
else
{
saFunds = accountHolds (
account, saDefault.getCurrency (), saDefault.getIssuer ());
account, saDefault.getCurrency (), saDefault.getIssuer (),
zeroIfFrozen);
WriteLog (lsTRACE, LedgerEntrySet) << "accountFunds:" <<
" account=" << to_string (account) <<