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database_api.cpp
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/*
* Copyright (c) 2017 Cryptonomex, Inc., and contributors.
*
* The MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <graphene/app/database_api.hpp>
#include <graphene/app/util.hpp>
#include <graphene/chain/get_config.hpp>
#include <fc/bloom_filter.hpp>
#include <fc/smart_ref_impl.hpp>
#include <fc/crypto/hex.hpp>
#include <fc/uint128.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/rational.hpp>
#include <boost/multiprecision/cpp_int.hpp>
#include <cctype>
#include <cfenv>
#include <iostream>
#define GET_REQUIRED_FEES_MAX_RECURSION 4
typedef std::map< std::pair<graphene::chain::asset_id_type, graphene::chain::asset_id_type>, std::vector<fc::variant> > market_queue_type;
namespace graphene { namespace app {
class database_api_impl : public std::enable_shared_from_this<database_api_impl>
{
public:
explicit database_api_impl( graphene::chain::database& db, const application_options* app_options );
~database_api_impl();
// Objects
fc::variants get_objects(const vector<object_id_type>& ids)const;
// Subscriptions
void set_subscribe_callback( std::function<void(const variant&)> cb, bool notify_remove_create );
void set_pending_transaction_callback( std::function<void(const variant&)> cb );
void set_block_applied_callback( std::function<void(const variant& block_id)> cb );
void cancel_all_subscriptions(bool reset_callback, bool reset_market_subscriptions);
// Blocks and transactions
optional<block_header> get_block_header(uint32_t block_num)const;
map<uint32_t, optional<block_header>> get_block_header_batch(const vector<uint32_t> block_nums)const;
optional<signed_block> get_block(uint32_t block_num)const;
processed_transaction get_transaction( uint32_t block_num, uint32_t trx_in_block )const;
// Globals
chain_property_object get_chain_properties()const;
global_property_object get_global_properties()const;
fc::variant_object get_config()const;
chain_id_type get_chain_id()const;
dynamic_global_property_object get_dynamic_global_properties()const;
// Keys
vector<vector<account_id_type>> get_key_references( vector<public_key_type> key )const;
bool is_public_key_registered(string public_key) const;
// Accounts
account_id_type get_account_id_from_string(const std::string& name_or_id)const;
vector<optional<account_object>> get_accounts(const vector<std::string>& account_names_or_ids)const;
std::map<string,full_account> get_full_accounts( const vector<string>& names_or_ids, bool subscribe );
optional<account_object> get_account_by_name( string name )const;
vector<account_id_type> get_account_references( const std::string account_id_or_name )const;
vector<optional<account_object>> lookup_account_names(const vector<string>& account_names)const;
map<string,account_id_type> lookup_accounts(const string& lower_bound_name, uint32_t limit)const;
uint64_t get_account_count()const;
// Balances
vector<asset> get_account_balances(const std::string& account_name_or_id, const flat_set<asset_id_type>& assets)const;
vector<asset> get_named_account_balances(const std::string& name, const flat_set<asset_id_type>& assets)const;
vector<balance_object> get_balance_objects( const vector<address>& addrs )const;
vector<asset> get_vested_balances( const vector<balance_id_type>& objs )const;
vector<vesting_balance_object> get_vesting_balances( const std::string account_id_or_name )const;
// Assets
vector<optional<asset_object>> get_assets(const vector<asset_id_type>& asset_ids)const;
vector<asset_object> list_assets(const string& lower_bound_symbol, uint32_t limit)const;
vector<optional<asset_object>> lookup_asset_symbols(const vector<string>& symbols_or_ids)const;
uint64_t get_asset_count()const;
// Markets / feeds
vector<limit_order_object> get_limit_orders(asset_id_type a, asset_id_type b, uint32_t limit)const;
vector<limit_order_object> get_account_limit_orders( const string& account_name_or_id,
const string &base,
const string "e, uint32_t limit,
optional<limit_order_id_type> ostart_id,
optional<price> ostart_price );
vector<call_order_object> get_call_orders(asset_id_type a, uint32_t limit)const;
vector<force_settlement_object> get_settle_orders(asset_id_type a, uint32_t limit)const;
vector<call_order_object> get_margin_positions( const std::string account_id_or_name )const;
vector<collateral_bid_object> get_collateral_bids(const asset_id_type asset, uint32_t limit, uint32_t start)const;
void subscribe_to_market(std::function<void(const variant&)> callback, asset_id_type a, asset_id_type b);
void unsubscribe_from_market(asset_id_type a, asset_id_type b);
market_ticker get_ticker( const string& base, const string& quote, bool skip_order_book = false )const;
market_volume get_24_volume( const string& base, const string& quote )const;
order_book get_order_book( const string& base, const string& quote, unsigned limit = 50 )const;
vector<market_ticker> get_top_markets( uint32_t limit )const;
vector<market_trade> get_trade_history( const string& base, const string& quote, fc::time_point_sec start, fc::time_point_sec stop, unsigned limit = 100 )const;
vector<market_trade> get_trade_history_by_sequence( const string& base, const string& quote, int64_t start, fc::time_point_sec stop, unsigned limit = 100 )const;
// Witnesses
vector<optional<witness_object>> get_witnesses(const vector<witness_id_type>& witness_ids)const;
fc::optional<witness_object> get_witness_by_account(const std::string account_id_or_name)const;
map<string, witness_id_type> lookup_witness_accounts(const string& lower_bound_name, uint32_t limit)const;
uint64_t get_witness_count()const;
// Committee members
vector<optional<committee_member_object>> get_committee_members(const vector<committee_member_id_type>& committee_member_ids)const;
fc::optional<committee_member_object> get_committee_member_by_account(const std::string account_id_or_name)const;
map<string, committee_member_id_type> lookup_committee_member_accounts(const string& lower_bound_name, uint32_t limit)const;
uint64_t get_committee_count()const;
// Workers
vector<worker_object> get_all_workers()const;
vector<optional<worker_object>> get_workers_by_account(const std::string account_id_or_name)const;
uint64_t get_worker_count()const;
// Votes
vector<variant> lookup_vote_ids( const vector<vote_id_type>& votes )const;
// Authority / validation
std::string get_transaction_hex(const signed_transaction& trx)const;
std::string get_transaction_hex_without_sig(const signed_transaction& trx)const;
set<public_key_type> get_required_signatures( const signed_transaction& trx, const flat_set<public_key_type>& available_keys )const;
set<public_key_type> get_potential_signatures( const signed_transaction& trx )const;
set<address> get_potential_address_signatures( const signed_transaction& trx )const;
bool verify_authority( const signed_transaction& trx )const;
bool verify_account_authority( const string& account_name_or_id, const flat_set<public_key_type>& signers )const;
processed_transaction validate_transaction( const signed_transaction& trx )const;
vector< fc::variant > get_required_fees( const vector<operation>& ops, asset_id_type id )const;
// Proposed transactions
vector<proposal_object> get_proposed_transactions( const std::string account_id_or_name )const;
// Blinded balances
vector<blinded_balance_object> get_blinded_balances( const flat_set<commitment_type>& commitments )const;
// Withdrawals
vector<withdraw_permission_object> get_withdraw_permissions_by_giver(const std::string account_id_or_name, withdraw_permission_id_type start, uint32_t limit)const;
vector<withdraw_permission_object> get_withdraw_permissions_by_recipient(const std::string account_id_or_name, withdraw_permission_id_type start, uint32_t limit)const;
//private:
static string price_to_string( const price& _price, const asset_object& _base, const asset_object& _quote );
template<typename T>
void subscribe_to_item( const T& i )const
{
auto vec = fc::raw::pack(i);
if( !_subscribe_callback )
return;
if( !is_subscribed_to_item(i) )
_subscribe_filter.insert( vec.data(), vec.size() );
}
template<typename T>
bool is_subscribed_to_item( const T& i )const
{
if( !_subscribe_callback )
return false;
return _subscribe_filter.contains( i );
}
bool is_impacted_account( const flat_set<account_id_type>& accounts)
{
if( !_subscribed_accounts.size() || !accounts.size() )
return false;
return std::any_of(accounts.begin(), accounts.end(), [this](const account_id_type& account) {
return _subscribed_accounts.find(account) != _subscribed_accounts.end();
});
}
const std::pair<asset_id_type,asset_id_type> get_order_market( const force_settlement_object& order )
{
// TODO cache the result to avoid repeatly fetching from db
asset_id_type backing_id = order.balance.asset_id( _db ).bitasset_data( _db ).options.short_backing_asset;
auto tmp = std::make_pair( order.balance.asset_id, backing_id );
if( tmp.first > tmp.second ) std::swap( tmp.first, tmp.second );
return tmp;
}
const account_object* get_account_from_string( const std::string& name_or_id ) const
{
// TODO cache the result to avoid repeatly fetching from db
FC_ASSERT( name_or_id.size() > 0);
const account_object* account = nullptr;
if (std::isdigit(name_or_id[0]))
account = _db.find(fc::variant(name_or_id, 1).as<account_id_type>(1));
else
{
const auto& idx = _db.get_index_type<account_index>().indices().get<by_name>();
auto itr = idx.find(name_or_id);
if (itr != idx.end())
account = &*itr;
}
FC_ASSERT( account, "no such account" );
return account;
}
template<typename T>
const std::pair<asset_id_type,asset_id_type> get_order_market( const T& order )
{
return order.get_market();
}
template<typename T>
void enqueue_if_subscribed_to_market(const object* obj, market_queue_type& queue, bool full_object=true)
{
const T* order = dynamic_cast<const T*>(obj);
FC_ASSERT( order != nullptr);
const auto& market = get_order_market( *order );
auto sub = _market_subscriptions.find( market );
if( sub != _market_subscriptions.end() ) {
queue[market].emplace_back( full_object ? obj->to_variant() : fc::variant(obj->id, 1) );
}
}
void broadcast_updates( const vector<variant>& updates );
void broadcast_market_updates( const market_queue_type& queue);
void handle_object_changed(bool force_notify, bool full_object, const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts, std::function<const object*(object_id_type id)> find_object);
/** called every time a block is applied to report the objects that were changed */
void on_objects_new(const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts);
void on_objects_changed(const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts);
void on_objects_removed(const vector<object_id_type>& ids, const vector<const object*>& objs, const flat_set<account_id_type>& impacted_accounts);
void on_applied_block();
bool _notify_remove_create = false;
mutable fc::bloom_filter _subscribe_filter;
std::set<account_id_type> _subscribed_accounts;
std::function<void(const fc::variant&)> _subscribe_callback;
std::function<void(const fc::variant&)> _pending_trx_callback;
std::function<void(const fc::variant&)> _block_applied_callback;
boost::signals2::scoped_connection _new_connection;
boost::signals2::scoped_connection _change_connection;
boost::signals2::scoped_connection _removed_connection;
boost::signals2::scoped_connection _applied_block_connection;
boost::signals2::scoped_connection _pending_trx_connection;
map< pair<asset_id_type,asset_id_type>, std::function<void(const variant&)> > _market_subscriptions;
graphene::chain::database& _db;
const application_options* _app_options = nullptr;
};
//////////////////////////////////////////////////////////////////////
// //
// Constructors //
// //
//////////////////////////////////////////////////////////////////////
database_api::database_api( graphene::chain::database& db, const application_options* app_options )
: my( new database_api_impl( db, app_options ) ) {}
database_api::~database_api() {}
database_api_impl::database_api_impl( graphene::chain::database& db, const application_options* app_options )
:_db(db), _app_options(app_options)
{
wlog("creating database api ${x}", ("x",int64_t(this)) );
_new_connection = _db.new_objects.connect([this](const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts) {
on_objects_new(ids, impacted_accounts);
});
_change_connection = _db.changed_objects.connect([this](const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts) {
on_objects_changed(ids, impacted_accounts);
});
_removed_connection = _db.removed_objects.connect([this](const vector<object_id_type>& ids, const vector<const object*>& objs, const flat_set<account_id_type>& impacted_accounts) {
on_objects_removed(ids, objs, impacted_accounts);
});
_applied_block_connection = _db.applied_block.connect([this](const signed_block&){ on_applied_block(); });
_pending_trx_connection = _db.on_pending_transaction.connect([this](const signed_transaction& trx ){
if( _pending_trx_callback ) _pending_trx_callback( fc::variant(trx, GRAPHENE_MAX_NESTED_OBJECTS) );
});
}
database_api_impl::~database_api_impl()
{
elog("freeing database api ${x}", ("x",int64_t(this)) );
}
//////////////////////////////////////////////////////////////////////
// //
// Market ticker constructor //
// //
//////////////////////////////////////////////////////////////////////
market_ticker::market_ticker(const market_ticker_object& mto,
const fc::time_point_sec& now,
const asset_object& asset_base,
const asset_object& asset_quote,
const order_book& orders)
{
time = now;
base = asset_base.symbol;
quote = asset_quote.symbol;
fc::uint128 bv;
fc::uint128 qv;
price latest_price = asset( mto.latest_base, mto.base ) / asset( mto.latest_quote, mto.quote );
if( mto.base != asset_base.id )
latest_price = ~latest_price;
latest = database_api_impl::price_to_string( latest_price, asset_base, asset_quote );
if( mto.last_day_base != 0 && mto.last_day_quote != 0 // has trade data before 24 hours
&& ( mto.last_day_base != mto.latest_base || mto.last_day_quote != mto.latest_quote ) ) // price changed
{
price last_day_price = asset( mto.last_day_base, mto.base ) / asset( mto.last_day_quote, mto.quote );
if( mto.base != asset_base.id )
last_day_price = ~last_day_price;
percent_change = price_diff_percent_string( last_day_price, latest_price );
}
if( asset_base.id == mto.base )
{
bv = mto.base_volume;
qv = mto.quote_volume;
}
else
{
bv = mto.quote_volume;
qv = mto.base_volume;
}
base_volume = uint128_amount_to_string( bv, asset_base.precision );
quote_volume = uint128_amount_to_string( qv, asset_quote.precision );
if(!orders.asks.empty())
lowest_ask = orders.asks[0].price;
if(!orders.bids.empty())
highest_bid = orders.bids[0].price;
}
//////////////////////////////////////////////////////////////////////
// //
// Objects //
// //
//////////////////////////////////////////////////////////////////////
fc::variants database_api::get_objects(const vector<object_id_type>& ids)const
{
return my->get_objects( ids );
}
fc::variants database_api_impl::get_objects(const vector<object_id_type>& ids)const
{
if( _subscribe_callback ) {
for( auto id : ids )
{
if( id.type() == operation_history_object_type && id.space() == protocol_ids ) continue;
if( id.type() == impl_account_transaction_history_object_type && id.space() == implementation_ids ) continue;
this->subscribe_to_item( id );
}
}
fc::variants result;
result.reserve(ids.size());
std::transform(ids.begin(), ids.end(), std::back_inserter(result),
[this](object_id_type id) -> fc::variant {
if(auto obj = _db.find_object(id))
return obj->to_variant();
return {};
});
return result;
}
//////////////////////////////////////////////////////////////////////
// //
// Subscriptions //
// //
//////////////////////////////////////////////////////////////////////
void database_api::set_subscribe_callback( std::function<void(const variant&)> cb, bool notify_remove_create )
{
my->set_subscribe_callback( cb, notify_remove_create );
}
void database_api_impl::set_subscribe_callback( std::function<void(const variant&)> cb, bool notify_remove_create )
{
if( notify_remove_create )
{
FC_ASSERT( _app_options && _app_options->enable_subscribe_to_all,
"Subscribing to universal object creation and removal is disallowed in this server." );
}
cancel_all_subscriptions(false, false);
_subscribe_callback = cb;
_notify_remove_create = notify_remove_create;
}
void database_api::set_pending_transaction_callback( std::function<void(const variant&)> cb )
{
my->set_pending_transaction_callback( cb );
}
void database_api_impl::set_pending_transaction_callback( std::function<void(const variant&)> cb )
{
_pending_trx_callback = cb;
}
void database_api::set_block_applied_callback( std::function<void(const variant& block_id)> cb )
{
my->set_block_applied_callback( cb );
}
void database_api_impl::set_block_applied_callback( std::function<void(const variant& block_id)> cb )
{
_block_applied_callback = cb;
}
void database_api::cancel_all_subscriptions()
{
my->cancel_all_subscriptions(true, true);
}
void database_api_impl::cancel_all_subscriptions( bool reset_callback, bool reset_market_subscriptions )
{
if ( reset_callback )
_subscribe_callback = std::function<void(const fc::variant&)>();
if ( reset_market_subscriptions )
_market_subscriptions.clear();
_notify_remove_create = false;
_subscribed_accounts.clear();
static fc::bloom_parameters param(10000, 1.0/100, 1024*8*8*2);
_subscribe_filter = fc::bloom_filter(param);
}
//////////////////////////////////////////////////////////////////////
// //
// Blocks and transactions //
// //
//////////////////////////////////////////////////////////////////////
optional<block_header> database_api::get_block_header(uint32_t block_num)const
{
return my->get_block_header( block_num );
}
optional<block_header> database_api_impl::get_block_header(uint32_t block_num) const
{
auto result = _db.fetch_block_by_number(block_num);
if(result)
return *result;
return {};
}
map<uint32_t, optional<block_header>> database_api::get_block_header_batch(const vector<uint32_t> block_nums)const
{
return my->get_block_header_batch( block_nums );
}
map<uint32_t, optional<block_header>> database_api_impl::get_block_header_batch(const vector<uint32_t> block_nums) const
{
map<uint32_t, optional<block_header>> results;
for (const uint32_t block_num : block_nums)
{
results[block_num] = get_block_header(block_num);
}
return results;
}
optional<signed_block> database_api::get_block(uint32_t block_num)const
{
return my->get_block( block_num );
}
optional<signed_block> database_api_impl::get_block(uint32_t block_num)const
{
return _db.fetch_block_by_number(block_num);
}
processed_transaction database_api::get_transaction( uint32_t block_num, uint32_t trx_in_block )const
{
return my->get_transaction( block_num, trx_in_block );
}
optional<signed_transaction> database_api::get_recent_transaction_by_id( const transaction_id_type& id )const
{
try {
return my->_db.get_recent_transaction( id );
} catch ( ... ) {
return optional<signed_transaction>();
}
}
processed_transaction database_api_impl::get_transaction(uint32_t block_num, uint32_t trx_num)const
{
auto opt_block = _db.fetch_block_by_number(block_num);
FC_ASSERT( opt_block );
FC_ASSERT( opt_block->transactions.size() > trx_num );
return opt_block->transactions[trx_num];
}
//////////////////////////////////////////////////////////////////////
// //
// Globals //
// //
//////////////////////////////////////////////////////////////////////
chain_property_object database_api::get_chain_properties()const
{
return my->get_chain_properties();
}
chain_property_object database_api_impl::get_chain_properties()const
{
return _db.get(chain_property_id_type());
}
global_property_object database_api::get_global_properties()const
{
return my->get_global_properties();
}
global_property_object database_api_impl::get_global_properties()const
{
return _db.get(global_property_id_type());
}
fc::variant_object database_api::get_config()const
{
return my->get_config();
}
fc::variant_object database_api_impl::get_config()const
{
return graphene::chain::get_config();
}
chain_id_type database_api::get_chain_id()const
{
return my->get_chain_id();
}
chain_id_type database_api_impl::get_chain_id()const
{
return _db.get_chain_id();
}
dynamic_global_property_object database_api::get_dynamic_global_properties()const
{
return my->get_dynamic_global_properties();
}
dynamic_global_property_object database_api_impl::get_dynamic_global_properties()const
{
return _db.get(dynamic_global_property_id_type());
}
//////////////////////////////////////////////////////////////////////
// //
// Keys //
// //
//////////////////////////////////////////////////////////////////////
vector<vector<account_id_type>> database_api::get_key_references( vector<public_key_type> key )const
{
FC_ASSERT(key.size() <= 100, "Number of keys must be 100 or less");
return my->get_key_references( key );
}
/**
* @return all accounts that referr to the key or account id in their owner or active authorities.
*/
vector<vector<account_id_type>> database_api_impl::get_key_references( vector<public_key_type> keys )const
{
const auto& idx = _db.get_index_type<account_index>();
const auto& aidx = dynamic_cast<const base_primary_index&>(idx);
const auto& refs = aidx.get_secondary_index<graphene::chain::account_member_index>();
vector< vector<account_id_type> > final_result;
final_result.reserve(keys.size());
for( auto& key : keys )
{
address a1( pts_address(key, false, 56) );
address a2( pts_address(key, true, 56) );
address a3( pts_address(key, false, 0) );
address a4( pts_address(key, true, 0) );
address a5( key );
subscribe_to_item( key );
subscribe_to_item( a1 );
subscribe_to_item( a2 );
subscribe_to_item( a3 );
subscribe_to_item( a4 );
subscribe_to_item( a5 );
vector<account_id_type> result;
for( auto& a : {a1,a2,a3,a4,a5} )
{
auto itr = refs.account_to_address_memberships.find(a);
if( itr != refs.account_to_address_memberships.end() )
{
result.reserve( result.size() + itr->second.size() );
for( auto item : itr->second )
{
result.push_back(item);
}
}
}
auto itr = refs.account_to_key_memberships.find(key);
if( itr != refs.account_to_key_memberships.end() )
{
result.reserve( result.size() + itr->second.size() );
for( auto item : itr->second ) result.push_back(item);
}
final_result.emplace_back( std::move(result) );
}
return final_result;
}
bool database_api::is_public_key_registered(string public_key) const
{
return my->is_public_key_registered(public_key);
}
bool database_api_impl::is_public_key_registered(string public_key) const
{
// Short-circuit
if (public_key.empty()) {
return false;
}
// Search among all keys using an existing map of *current* account keys
public_key_type key;
try {
key = public_key_type(public_key);
} catch ( ... ) {
// An invalid public key was detected
return false;
}
const auto& idx = _db.get_index_type<account_index>();
const auto& aidx = dynamic_cast<const base_primary_index&>(idx);
const auto& refs = aidx.get_secondary_index<graphene::chain::account_member_index>();
auto itr = refs.account_to_key_memberships.find(key);
bool is_known = itr != refs.account_to_key_memberships.end();
return is_known;
}
//////////////////////////////////////////////////////////////////////
// //
// Accounts //
// //
//////////////////////////////////////////////////////////////////////
account_id_type database_api::get_account_id_from_string(const std::string& name_or_id)const
{
return my->get_account_from_string( name_or_id )->id; // safe?
}
vector<optional<account_object>> database_api::get_accounts(const vector<std::string>& account_names_or_ids)const
{
return my->get_accounts( account_names_or_ids );
}
vector<optional<account_object>> database_api_impl::get_accounts(const vector<std::string>& account_names_or_ids)const
{
vector<optional<account_object>> result; result.reserve(account_names_or_ids.size());
std::transform(account_names_or_ids.begin(), account_names_or_ids.end(), std::back_inserter(result),
[this](std::string id_or_name) -> optional<account_object> {
const account_object* account = get_account_from_string(id_or_name);
account_id_type id = account->id;
if(auto o = _db.find(id))
{
subscribe_to_item( id );
return *o;
}
return {};
});
return result;
}
vector<limit_order_object> database_api::get_account_limit_orders( const string& account_name_or_id, const string &base,
const string "e, uint32_t limit, optional<limit_order_id_type> ostart_id, optional<price> ostart_price)
{
return my->get_account_limit_orders( account_name_or_id, base, quote, limit, ostart_id, ostart_price );
}
vector<limit_order_object> database_api_impl::get_account_limit_orders( const string& account_name_or_id, const string &base,
const string "e, uint32_t limit, optional<limit_order_id_type> ostart_id, optional<price> ostart_price)
{
FC_ASSERT( limit <= 101 );
vector<limit_order_object> results;
uint32_t count = 0;
const account_object* account = get_account_from_string(account_name_or_id);
if (account == nullptr)
return results;
auto assets = lookup_asset_symbols( {base, quote} );
FC_ASSERT( assets[0], "Invalid base asset symbol: ${s}", ("s",base) );
FC_ASSERT( assets[1], "Invalid quote asset symbol: ${s}", ("s",quote) );
auto base_id = assets[0]->id;
auto quote_id = assets[1]->id;
if (ostart_price.valid()) {
FC_ASSERT(ostart_price->base.asset_id == base_id, "Base asset inconsistent with start price");
FC_ASSERT(ostart_price->quote.asset_id == quote_id, "Quote asset inconsistent with start price");
}
const auto& index_by_account = _db.get_index_type<limit_order_index>().indices().get<by_account>();
limit_order_multi_index_type::index<by_account>::type::const_iterator lower_itr;
limit_order_multi_index_type::index<by_account>::type::const_iterator upper_itr;
// if both order_id and price are invalid, query the first page
if ( !ostart_id.valid() && !ostart_price.valid() )
{
lower_itr = index_by_account.lower_bound(std::make_tuple(account->id, price::max(base_id, quote_id)));
}
else if ( ostart_id.valid() )
{
// in case of the order been deleted during page querying
const limit_order_object *p_loo = _db.find(*ostart_id);
if ( !p_loo )
{
if ( ostart_price.valid() )
{
lower_itr = index_by_account.lower_bound(std::make_tuple(account->id, *ostart_price, *ostart_id));
}
else
{
// start order id been deleted, yet not provided price either
FC_THROW("Order id invalid (maybe just been canceled?), and start price not provided");
}
}
else
{
const limit_order_object &loo = *p_loo;
// in case of the order not belongs to specified account or market
FC_ASSERT(loo.sell_price.base.asset_id == base_id, "Order base asset inconsistent");
FC_ASSERT(loo.sell_price.quote.asset_id == quote_id, "Order quote asset inconsistent with order");
FC_ASSERT(loo.seller == account->get_id(), "Order not owned by specified account");
lower_itr = index_by_account.lower_bound(std::make_tuple(account->id, loo.sell_price, *ostart_id));
}
}
else
{
// if reach here start_price must be valid
lower_itr = index_by_account.lower_bound(std::make_tuple(account->id, *ostart_price));
}
upper_itr = index_by_account.upper_bound(std::make_tuple(account->id, price::min(base_id, quote_id)));
// Add the account's orders
for ( ; lower_itr != upper_itr && count < limit; ++lower_itr, ++count)
{
const limit_order_object &order = *lower_itr;
results.emplace_back(order);
}
return results;
}
std::map<string,full_account> database_api::get_full_accounts( const vector<string>& names_or_ids, bool subscribe )
{
return my->get_full_accounts( names_or_ids, subscribe );
}
std::map<std::string, full_account> database_api_impl::get_full_accounts( const vector<std::string>& names_or_ids, bool subscribe)
{
const auto& proposal_idx = _db.get_index_type<proposal_index>();
const auto& pidx = dynamic_cast<const base_primary_index&>(proposal_idx);
const auto& proposals_by_account = pidx.get_secondary_index<graphene::chain::required_approval_index>();
std::map<std::string, full_account> results;
for (const std::string& account_name_or_id : names_or_ids)
{
const account_object* account = get_account_from_string(account_name_or_id);
if (account == nullptr)
continue;
if( subscribe )
{
if(_subscribed_accounts.size() < 100) {
_subscribed_accounts.insert( account->get_id() );
subscribe_to_item( account->id );
}
}
full_account acnt;
acnt.account = *account;
acnt.statistics = account->statistics(_db);
acnt.registrar_name = account->registrar(_db).name;
acnt.referrer_name = account->referrer(_db).name;
acnt.lifetime_referrer_name = account->lifetime_referrer(_db).name;
acnt.votes = lookup_vote_ids( vector<vote_id_type>(account->options.votes.begin(),account->options.votes.end()) );
if (account->cashback_vb)
{
acnt.cashback_balance = account->cashback_balance(_db);
}
// Add the account's proposals
auto required_approvals_itr = proposals_by_account._account_to_proposals.find( account->id );
if( required_approvals_itr != proposals_by_account._account_to_proposals.end() )
{
acnt.proposals.reserve( required_approvals_itr->second.size() );
for( auto proposal_id : required_approvals_itr->second )
acnt.proposals.push_back( proposal_id(_db) );
}
// Add the account's balances
const auto& balances = _db.get_index_type< primary_index< account_balance_index > >().get_secondary_index< balances_by_account_index >().get_account_balances( account->id );
for( const auto balance : balances )
acnt.balances.emplace_back( *balance.second );
// Add the account's vesting balances
auto vesting_range = _db.get_index_type<vesting_balance_index>().indices().get<by_account>().equal_range(account->id);
std::for_each(vesting_range.first, vesting_range.second,
[&acnt](const vesting_balance_object& balance) {
acnt.vesting_balances.emplace_back(balance);
});
// Add the account's orders
auto order_range = _db.get_index_type<limit_order_index>().indices().get<by_account>().equal_range(account->id);
std::for_each(order_range.first, order_range.second,
[&acnt] (const limit_order_object& order) {
acnt.limit_orders.emplace_back(order);
});
auto call_range = _db.get_index_type<call_order_index>().indices().get<by_account>().equal_range(account->id);
std::for_each(call_range.first, call_range.second,
[&acnt] (const call_order_object& call) {
acnt.call_orders.emplace_back(call);
});
auto settle_range = _db.get_index_type<force_settlement_index>().indices().get<by_account>().equal_range(account->id);
std::for_each(settle_range.first, settle_range.second,
[&acnt] (const force_settlement_object& settle) {
acnt.settle_orders.emplace_back(settle);
});
// get assets issued by user
auto asset_range = _db.get_index_type<asset_index>().indices().get<by_issuer>().equal_range(account->id);
std::for_each(asset_range.first, asset_range.second,
[&acnt] (const asset_object& asset) {
acnt.assets.emplace_back(asset.id);
});
// get withdraws permissions
auto withdraw_range = _db.get_index_type<withdraw_permission_index>().indices().get<by_from>().equal_range(account->id);
std::for_each(withdraw_range.first, withdraw_range.second,
[&acnt] (const withdraw_permission_object& withdraw) {
acnt.withdraws.emplace_back(withdraw);
});
results[account_name_or_id] = acnt;
}
return results;
}
optional<account_object> database_api::get_account_by_name( string name )const
{
return my->get_account_by_name( name );
}
optional<account_object> database_api_impl::get_account_by_name( string name )const
{
const auto& idx = _db.get_index_type<account_index>().indices().get<by_name>();
auto itr = idx.find(name);
if (itr != idx.end())
return *itr;
return optional<account_object>();
}
vector<account_id_type> database_api::get_account_references( const std::string account_id_or_name )const
{
return my->get_account_references( account_id_or_name );
}
vector<account_id_type> database_api_impl::get_account_references( const std::string account_id_or_name )const
{
const auto& idx = _db.get_index_type<account_index>();
const auto& aidx = dynamic_cast<const base_primary_index&>(idx);
const auto& refs = aidx.get_secondary_index<graphene::chain::account_member_index>();
const account_id_type account_id = get_account_from_string(account_id_or_name)->id;
auto itr = refs.account_to_account_memberships.find(account_id);
vector<account_id_type> result;
if( itr != refs.account_to_account_memberships.end() )
{
result.reserve( itr->second.size() );
for( auto item : itr->second ) result.push_back(item);
}
return result;
}
vector<optional<account_object>> database_api::lookup_account_names(const vector<string>& account_names)const
{
return my->lookup_account_names( account_names );
}
vector<optional<account_object>> database_api_impl::lookup_account_names(const vector<string>& account_names)const
{
const auto& accounts_by_name = _db.get_index_type<account_index>().indices().get<by_name>();
vector<optional<account_object> > result;
result.reserve(account_names.size());
std::transform(account_names.begin(), account_names.end(), std::back_inserter(result),
[&accounts_by_name](const string& name) -> optional<account_object> {
auto itr = accounts_by_name.find(name);
return itr == accounts_by_name.end()? optional<account_object>() : *itr;
});
return result;
}
map<string,account_id_type> database_api::lookup_accounts(const string& lower_bound_name, uint32_t limit)const
{
return my->lookup_accounts( lower_bound_name, limit );
}
map<string,account_id_type> database_api_impl::lookup_accounts(const string& lower_bound_name, uint32_t limit)const
{
FC_ASSERT( limit <= 1000 );
const auto& accounts_by_name = _db.get_index_type<account_index>().indices().get<by_name>();
map<string,account_id_type> result;
for( auto itr = accounts_by_name.lower_bound(lower_bound_name);
limit-- && itr != accounts_by_name.end();
++itr )
{
result.insert(make_pair(itr->name, itr->get_id()));
if( limit == 1 )
subscribe_to_item( itr->get_id() );
}
return result;
}
uint64_t database_api::get_account_count()const
{
return my->get_account_count();
}
uint64_t database_api_impl::get_account_count()const
{
return _db.get_index_type<account_index>().indices().size();
}
//////////////////////////////////////////////////////////////////////
// //
// Balances //
// //
//////////////////////////////////////////////////////////////////////
vector<asset> database_api::get_account_balances(const std::string& account_name_or_id, const flat_set<asset_id_type>& assets)const
{
return my->get_account_balances( account_name_or_id, assets );
}
vector<asset> database_api_impl::get_account_balances(const std::string& account_name_or_id, const flat_set<asset_id_type>& assets)const
{
const account_object* account = get_account_from_string(account_name_or_id);
account_id_type acnt = account->id;
vector<asset> result;
if (assets.empty())
{
// if the caller passes in an empty list of assets, return balances for all assets the account owns