371 lines
13 KiB
C++
371 lines
13 KiB
C++
/*
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* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
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*
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* The MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <graphene/chain/database.hpp>
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#include <graphene/chain/asset_object.hpp>
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#include <graphene/chain/chain_property_object.hpp>
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#include <graphene/chain/global_property_object.hpp>
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#include <graphene/chain/custom_permission_object.hpp>
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#include <graphene/chain/custom_account_authority_object.hpp>
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#include <graphene/chain/offer_object.hpp>
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#include <graphene/chain/account_role_object.hpp>
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#include <graphene/chain/son_object.hpp>
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#include <graphene/chain/son_proposal_object.hpp>
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#include <ctime>
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#include <algorithm>
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namespace graphene { namespace chain {
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const asset_object& database::get_core_asset() const
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{
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return *_p_core_asset_obj;
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}
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const asset_dynamic_data_object& database::get_core_dynamic_data() const
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{
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return *_p_core_dynamic_data_obj;
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}
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const global_property_object& database::get_global_properties()const
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{
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return *_p_global_prop_obj;
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}
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const chain_property_object& database::get_chain_properties()const
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{
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return *_p_chain_property_obj;
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}
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const dynamic_global_property_object& database::get_dynamic_global_properties() const
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{
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return *_p_dyn_global_prop_obj;
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}
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const fee_schedule& database::current_fee_schedule()const
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{
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return std::ref( *get_global_properties().parameters.current_fees );
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}
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time_point_sec database::head_block_time()const
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{
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return get_dynamic_global_properties().time;
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}
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uint32_t database::head_block_num()const
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{
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return get_dynamic_global_properties().head_block_number;
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}
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block_id_type database::head_block_id()const
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{
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return get_dynamic_global_properties().head_block_id;
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}
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decltype( chain_parameters::block_interval ) database::block_interval( )const
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{
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return get_global_properties().parameters.block_interval;
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}
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const chain_id_type& database::get_chain_id( )const
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{
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return get_chain_properties().chain_id;
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}
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const node_property_object& database::get_node_properties()const
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{
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return _node_property_object;
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}
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node_property_object& database::node_properties()
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{
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return _node_property_object;
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}
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uint32_t database::last_non_undoable_block_num() const
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{
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return head_block_num() - _undo_db.size();
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}
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std::vector<uint32_t> database::get_seeds( asset_id_type for_asset, uint8_t count_winners ) const
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{
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FC_ASSERT( count_winners <= 64 );
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std::string salted_string = std::string(_random_number_generator._seed) + std::to_string(for_asset.instance.value);
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uint32_t* seeds = (uint32_t*)(fc::sha256::hash(salted_string)._hash);
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std::vector<uint32_t> result;
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result.reserve(64);
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for( int s = 0; s < 8; ++s ) {
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uint32_t* sub_seeds = ( uint32_t* ) fc::sha256::hash( std::to_string( seeds[s] ) + std::to_string( for_asset.instance.value ) )._hash;
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for( int ss = 0; ss < 8; ++ss ) {
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result.push_back(sub_seeds[ss]);
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}
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}
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return result;
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}
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const std::vector<uint32_t> database::get_winner_numbers( asset_id_type for_asset, uint32_t count_members, uint8_t count_winners ) const
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{
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std::vector<uint32_t> result;
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if( count_members < count_winners ) count_winners = count_members;
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if( count_winners == 0 ) return result;
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result.reserve(count_winners);
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auto seeds = get_seeds(for_asset, count_winners);
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for (auto current_seed = seeds.begin(); current_seed != seeds.end(); ++current_seed) {
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uint8_t winner_num = *current_seed % count_members;
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while( std::find(result.begin(), result.end(), winner_num) != result.end() ) {
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*current_seed = (*current_seed * 1103515245 + 12345) / 65536; //using gcc's consts for pseudorandom
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winner_num = *current_seed % count_members;
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}
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result.push_back(winner_num);
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if (result.size() >= count_winners) break;
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}
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FC_ASSERT(result.size() == count_winners);
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return result;
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}
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const account_statistics_object& database::get_account_stats_by_owner( account_id_type owner )const
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{
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auto& idx = get_index_type<account_stats_index>().indices().get<by_owner>();
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auto itr = idx.find( owner );
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FC_ASSERT( itr != idx.end(), "Can not find account statistics object for owner ${a}", ("a",owner) );
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return *itr;
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}
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const witness_schedule_object& database::get_witness_schedule_object()const
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{
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return *_p_witness_schedule_obj;
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}
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vector<authority> database::get_account_custom_authorities(account_id_type account, const operation& op)const
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{
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const auto& pindex = get_index_type<custom_permission_index>().indices().get<by_account_and_permission>();
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const auto& cindex = get_index_type<custom_account_authority_index>().indices().get<by_permission_and_op>();
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auto prange = pindex.equal_range(boost::make_tuple(account));
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time_point_sec now = head_block_time();
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vector<authority> custom_auths;
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for(const custom_permission_object& pobj : boost::make_iterator_range(prange.first, prange.second))
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{
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auto crange = cindex.equal_range(boost::make_tuple(pobj.id, op.which()));
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for(const custom_account_authority_object& cobj : boost::make_iterator_range(crange.first, crange.second))
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{
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if(now >= cobj.valid_from && now < cobj.valid_to)
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{
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custom_auths.push_back(pobj.auth);
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}
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}
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}
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return custom_auths;
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}
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bool database::item_locked(const nft_id_type &item) const
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{
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const auto &offer_idx = get_index_type<offer_index>();
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const auto &oidx = dynamic_cast<const base_primary_index &>(offer_idx);
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const auto &market_items = oidx.get_secondary_index<graphene::chain::offer_item_index>();
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auto items_itr = market_items._locked_items.find(item);
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return (items_itr != market_items._locked_items.end());
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}
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bool database::account_role_valid(const account_role_object &aro, account_id_type account, optional<int> op_type) const
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{
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return (aro.valid_to > head_block_time()) &&
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(aro.whitelisted_accounts.find(account) != aro.whitelisted_accounts.end()) &&
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(!op_type || (aro.allowed_operations.find(*op_type) != aro.allowed_operations.end()));
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}
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std::set<son_id_type> database::get_sons_being_deregistered()
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{
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std::set<son_id_type> ret;
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const auto& son_proposal_idx = get_index_type<son_proposal_index>().indices().get< by_id >();
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for( auto& son_proposal : son_proposal_idx )
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{
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if(son_proposal.proposal_type == son_proposal_type::son_deregister_proposal)
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{
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ret.insert(son_proposal.son_id);
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}
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}
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return ret;
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}
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std::set<son_id_type> database::get_sons_to_be_deregistered()
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{
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std::set<son_id_type> ret;
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const auto& son_idx = get_index_type<son_index>().indices().get< by_id >();
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for( auto& son : son_idx )
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{
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if(son.status == son_status::in_maintenance)
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{
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auto stats = son.statistics(*this);
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// TODO : We need to add a function that returns if we can deregister SON
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// i.e. with introduction of PW code, we have to make a decision if the SON
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// is needed for release of funds from the PW
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if(head_block_time() - stats.last_down_timestamp >= fc::seconds(get_global_properties().parameters.son_deregister_time()))
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{
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ret.insert(son.id);
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}
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}
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}
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return ret;
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}
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std::set<son_id_type> database::get_sons_being_reported_down()
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{
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std::set<son_id_type> ret;
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const auto& son_proposal_idx = get_index_type<son_proposal_index>().indices().get< by_id >();
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for( auto& son_proposal : son_proposal_idx )
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{
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if(son_proposal.proposal_type == son_proposal_type::son_report_down_proposal)
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{
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ret.insert(son_proposal.son_id);
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}
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}
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return ret;
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}
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fc::optional<operation> database::create_son_deregister_proposal( son_id_type son_id, account_id_type paying_son )
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{
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son_deregister_operation son_dereg_op;
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son_dereg_op.payer = get_global_properties().parameters.son_account();
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son_dereg_op.son_id = son_id;
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proposal_create_operation proposal_op;
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proposal_op.fee_paying_account = paying_son;
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proposal_op.proposed_ops.push_back( op_wrapper( son_dereg_op ) );
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uint32_t lifetime = ( get_global_properties().parameters.block_interval * get_global_properties().active_witnesses.size() ) * 3;
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proposal_op.expiration_time = time_point_sec( head_block_time().sec_since_epoch() + lifetime );
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return proposal_op;
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}
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signed_transaction database::create_signed_transaction( const fc::ecc::private_key& signing_private_key, const operation& op )
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{
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signed_transaction processed_trx;
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auto dyn_props = get_dynamic_global_properties();
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processed_trx.set_reference_block( dyn_props.head_block_id );
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processed_trx.set_expiration( head_block_time() + get_global_properties().parameters.maximum_time_until_expiration );
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processed_trx.operations.push_back( op );
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current_fee_schedule().set_fee( processed_trx.operations.back() );
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processed_trx.sign( signing_private_key, get_chain_id() );
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return processed_trx;
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}
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bool database::is_son_dereg_valid( son_id_type son_id )
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{
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const auto& son_idx = get_index_type<son_index>().indices().get< by_id >();
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auto son = son_idx.find( son_id );
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if(son == son_idx.end())
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{
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return false;
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}
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return (son->status == son_status::in_maintenance &&
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(head_block_time() - son->statistics(*this).last_down_timestamp >= fc::seconds(get_global_properties().parameters.son_deregister_time())));
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}
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bool database::is_son_active( son_id_type son_id )
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{
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const auto& son_idx = get_index_type<son_index>().indices().get< by_id >();
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auto son = son_idx.find( son_id );
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if(son == son_idx.end())
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{
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return false;
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}
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const global_property_object& gpo = get_global_properties();
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vector<son_id_type> active_son_ids;
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active_son_ids.reserve(gpo.active_sons.size());
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std::transform(gpo.active_sons.begin(), gpo.active_sons.end(),
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std::inserter(active_son_ids, active_son_ids.end()),
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[](const son_info& swi) {
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return swi.son_id;
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});
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auto it_son = std::find(active_son_ids.begin(), active_son_ids.end(), son_id);
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return (it_son != active_son_ids.end());
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}
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vector<uint64_t> database::get_random_numbers(uint64_t minimum, uint64_t maximum, uint64_t selections, bool duplicates)
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{
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FC_ASSERT( selections <= 100000 );
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if (duplicates == false) {
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FC_ASSERT( maximum - minimum >= selections );
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}
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vector<uint64_t> v;
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v.reserve(selections);
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if (duplicates) {
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for (uint64_t i = 0; i < selections; i++) {
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int64_t rnd = get_random_bits(maximum - minimum) + minimum;
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v.push_back(rnd);
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}
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} else {
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vector<uint64_t> tmpv;
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tmpv.reserve(selections);
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for (uint64_t i = minimum; i < maximum; i++) {
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tmpv.push_back(i);
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}
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for (uint64_t i = 0; (i < selections) && (tmpv.size() > 0); i++) {
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uint64_t idx = get_random_bits(tmpv.size());
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v.push_back(tmpv.at(idx));
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tmpv.erase(tmpv.begin() + idx);
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}
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}
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return v;
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}
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bool database::is_asset_creation_allowed(const string &symbol)
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{
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time_point_sec now = head_block_time();
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std::unordered_set<std::string> post_son_hf_symbols = {"ETH", "USDT", "BNB", "ADA", "DOGE", "XRP", "USDC", "DOT", "UNI", "BUSD", "BCH", "LTC", "SOL", "LINK", "MATIC", "THETA",
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"WBTC", "XLM", "ICP", "DAI", "VET", "ETC", "TRX", "FIL", "XMR", "EGR", "EOS", "SHIB", "AAVE", "CRO", "ALGO", "AMP", "BTCB",
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"BSV", "KLAY", "CAKE", "FTT", "LEO", "XTZ", "TFUEL", "MIOTA", "LUNA", "NEO", "ATOM", "MKR", "FEI", "WBNB", "UST", "AVAX",
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"STEEM", "HIVE", "HBD", "SBD", "BTS"};
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if (symbol == "BTC")
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{
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if (now < HARDFORK_SON_TIME)
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return false;
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}
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if (post_son_hf_symbols.find(symbol) != post_son_hf_symbols.end())
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{
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if (now >= HARDFORK_SON_TIME)
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return false;
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}
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return true;
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}
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} }
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