129 lines
5.5 KiB
C++
129 lines
5.5 KiB
C++
/*
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* Copyright (c) 2015, Cryptonomex, Inc.
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* All rights reserved.
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*
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* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
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* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
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* are permitted until September 8, 2015, provided that the following conditions are met:
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*
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* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <graphene/chain/database.hpp>
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#include <graphene/chain/evaluator.hpp>
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#include <graphene/chain/exceptions.hpp>
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#include <graphene/chain/transaction_evaluation_state.hpp>
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#include <graphene/chain/asset_object.hpp>
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#include <graphene/chain/account_object.hpp>
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#include <graphene/chain/committee_member_object.hpp>
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#include <graphene/chain/market_evaluator.hpp>
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#include <graphene/chain/protocol/fee_schedule.hpp>
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#include <fc/uint128.hpp>
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namespace graphene { namespace chain {
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database& generic_evaluator::db()const { return trx_state->db(); }
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operation_result generic_evaluator::start_evaluate( transaction_evaluation_state& eval_state, const operation& op, bool apply )
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{ try {
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trx_state = &eval_state;
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check_required_authorities(op);
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auto result = evaluate( op );
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if( apply ) result = this->apply( op );
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return result;
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} FC_CAPTURE_AND_RETHROW() }
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void generic_evaluator::prepare_fee(account_id_type account_id, asset fee)
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{
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fee_from_account = fee;
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FC_ASSERT( fee.amount >= 0 );
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fee_paying_account = &account_id(db());
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fee_paying_account_statistics = &fee_paying_account->statistics(db());
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fee_asset = &fee.asset_id(db());
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fee_asset_dyn_data = &fee_asset->dynamic_asset_data_id(db());
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if( fee_from_account.asset_id == asset_id_type() )
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core_fee_paid = fee_from_account.amount;
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else {
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asset fee_from_pool = fee_from_account * fee_asset->options.core_exchange_rate;
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FC_ASSERT( fee_from_pool.asset_id == asset_id_type() );
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core_fee_paid = fee_from_pool.amount;
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FC_ASSERT( core_fee_paid <= fee_asset_dyn_data->fee_pool, "Fee pool balance of '${b}' is less than the ${r} required to convert ${c}",
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("r", db().to_pretty_string( fee_from_pool))("b",db().to_pretty_string(fee_asset_dyn_data->fee_pool))("c",db().to_pretty_string(fee)) );
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}
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}
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void generic_evaluator::pay_fee()
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{ try {
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if( fee_asset->get_id() != asset_id_type() )
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db().modify(*fee_asset_dyn_data, [this](asset_dynamic_data_object& d) {
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d.accumulated_fees += fee_from_account.amount;
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d.fee_pool -= core_fee_paid;
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});
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db().modify(*fee_paying_account_statistics, [&](account_statistics_object& s) {
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if( core_fee_paid > db().get_global_properties().parameters.cashback_vesting_threshold )
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s.pending_fees += core_fee_paid;
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else
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s.pending_vested_fees += core_fee_paid;
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});
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} FC_CAPTURE_AND_RETHROW() }
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bool generic_evaluator::verify_authority( const account_object& a, authority::classification c )
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{ try {
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return trx_state->check_authority( a, c );
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} FC_CAPTURE_AND_RETHROW( (a)(c) ) }
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void generic_evaluator::check_required_authorities(const operation& op)
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{ try {
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flat_set<account_id_type> active_auths;
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flat_set<account_id_type> owner_auths;
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vector<authority> other_auths;
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operation_get_required_authorities( op, active_auths, owner_auths, other_auths );
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for( auto id : active_auths )
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{
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GRAPHENE_ASSERT(
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verify_authority(id(db()), authority::active) ||
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verify_authority(id(db()), authority::owner),
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tx_missing_active_auth,
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"missing required active authority ${id}", ("id", id));
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}
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for( auto id : owner_auths )
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{
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GRAPHENE_ASSERT(
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verify_authority(id(db()), authority::owner),
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tx_missing_owner_auth,
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"missing required owner authority ${id}", ("id", id));
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}
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for( const auto& auth : other_auths )
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{
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GRAPHENE_ASSERT(
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trx_state->check_authority(auth),
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tx_missing_other_auth,
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"missing required authority ${auth}",
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("auth",auth)("sigs",trx_state->_sigs));
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}
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} FC_CAPTURE_AND_RETHROW( (op) ) }
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void generic_evaluator::verify_authority_accounts( const authority& a )const
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{
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const auto& chain_params = db().get_global_properties().parameters;
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FC_ASSERT( a.num_auths() <= chain_params.maximum_authority_membership );
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for( const auto& acnt : a.account_auths )
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acnt.first(db());
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}
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} }
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