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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 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/tx/impl/CancelOffer.h>
#include <ripple/basics/Log.h>
#include <ripple/protocol/st.h>
#include <ripple/ledger/View.h>
namespace ripple {
TER
CancelOffer::preflight (PreflightContext const& ctx)
{
auto const ret = preflight1 (ctx);
if (!isTesSuccess (ret))
return ret;
auto const uTxFlags = ctx.tx.getFlags();
if (uTxFlags & tfUniversalMask)
{
JLOG(ctx.j.trace()) << "Malformed transaction: " <<
"Invalid flags set.";
return temINVALID_FLAG;
}
auto const seq = ctx.tx.getFieldU32 (sfOfferSequence);
if (! seq)
{
JLOG(ctx.j.trace()) <<
"CancelOffer::preflight: missing sequence";
return temBAD_SEQUENCE;
}
return preflight2(ctx);
}
//------------------------------------------------------------------------------
TER
CancelOffer::preclaim(PreclaimContext const& ctx)
{
auto const id = ctx.tx[sfAccount];
auto const offerSequence = ctx.tx[sfOfferSequence];
auto const sle = ctx.view.read(
keylet::account(id));
if ((*sle)[sfSequence] <= offerSequence)
{
JLOG(ctx.j.trace()) << "Malformed transaction: " <<
"Sequence " << offerSequence << " is invalid.";
return temBAD_SEQUENCE;
}
return tesSUCCESS;
}
//------------------------------------------------------------------------------
TER
CancelOffer::doApply ()
{
auto const offerSequence = ctx_.tx[sfOfferSequence];
auto const sle = view().read(
keylet::account(account_));
uint256 const offerIndex (getOfferIndex (account_, offerSequence));
auto sleOffer = view().peek (
keylet::offer(offerIndex));
if (sleOffer)
{
JLOG(j_.debug()) << "Trying to cancel offer #" << offerSequence;
return offerDelete (view(), sleOffer, ctx_.app.journal("View"));
}
JLOG(j_.debug()) << "Offer #" << offerSequence << " can't be found.";
return tesSUCCESS;
}
}