peerplays_migrated/libraries/chain/transfer_evaluator.cpp
2015-07-01 18:17:49 -04:00

92 lines
4 KiB
C++

/*
* Copyright (c) 2015, Cryptonomex, Inc.
* All rights reserved.
*
* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
* are permitted until September 8, 2015, provided that the following conditions are met:
*
* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <graphene/chain/transfer_evaluator.hpp>
#include <graphene/chain/account_object.hpp>
namespace graphene { namespace chain {
void_result transfer_evaluator::do_evaluate( const transfer_operation& op )
{ try {
database& d = db();
const account_object& from_account = op.from(d);
const account_object& to_account = op.to(d);
const asset_object& asset_type = op.amount.asset_id(d);
const asset_object& fee_asset_type = op.fee.asset_id(d);
if( asset_type.options.flags & white_list )
{
FC_ASSERT( to_account.is_authorized_asset( asset_type ) );
FC_ASSERT( from_account.is_authorized_asset( asset_type ) );
}
if( fee_asset_type.options.flags & white_list )
FC_ASSERT( from_account.is_authorized_asset( asset_type ) );
if( asset_type.is_transfer_restricted() )
FC_ASSERT( from_account.id == asset_type.issuer || to_account.id == asset_type.issuer );
FC_ASSERT( d.get_balance( from_account, asset_type ).amount >= op.amount.amount,
"", ("total_transfer",op.amount)("balance",d.get_balance(from_account, asset_type).amount) );
return void_result();
} FC_CAPTURE_AND_RETHROW( (op) ) }
void_result transfer_evaluator::do_apply( const transfer_operation& o )
{ try {
db().adjust_balance( o.from, -o.amount );
db().adjust_balance( o.to, o.amount );
return void_result();
} FC_CAPTURE_AND_RETHROW( (o) ) }
void_result override_transfer_evaluator::do_evaluate( const override_transfer_operation& op )
{ try {
database& d = db();
const asset_object& asset_type = op.amount.asset_id(d);
FC_ASSERT( asset_type.can_override() );
FC_ASSERT( asset_type.issuer == op.issuer );
const account_object& from_account = op.from(d);
const account_object& to_account = op.to(d);
const asset_object& fee_asset_type = op.fee.asset_id(d);
if( asset_type.options.flags & white_list )
{
FC_ASSERT( to_account.is_authorized_asset( asset_type ) );
FC_ASSERT( from_account.is_authorized_asset( asset_type ) );
}
if( fee_asset_type.options.flags & white_list )
FC_ASSERT( from_account.is_authorized_asset( asset_type ) );
FC_ASSERT( d.get_balance( from_account, asset_type ).amount >= op.amount.amount,
"", ("total_transfer",op.amount)("balance",d.get_balance(from_account, asset_type).amount) );
return void_result();
} FC_CAPTURE_AND_RETHROW( (op) ) }
void_result override_transfer_evaluator::do_apply( const override_transfer_operation& o )
{ try {
db().adjust_balance( o.from, -o.amount );
db().adjust_balance( o.to, o.amount );
return void_result();
} FC_CAPTURE_AND_RETHROW( (o) ) }
} } // graphene::chain