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database_api.cpp
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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 "database_api_impl.hxx"
#include <graphene/app/util.hpp>
#include <graphene/chain/get_config.hpp>
#include <graphene/chain/hardfork.hpp>
#include <graphene/protocol/pts_address.hpp>
#include <graphene/protocol/restriction_predicate.hpp>
#include <fc/crypto/hex.hpp>
#include <fc/rpc/api_connection.hpp>
#include <boost/range/iterator_range.hpp>
#include <cctype>
template class fc::api<graphene::app::database_api>;
namespace graphene { namespace app {
//////////////////////////////////////////////////////////////////////
// //
// Constructors //
// //
//////////////////////////////////////////////////////////////////////
database_api::database_api( graphene::chain::database& db, const application_options* app_options )
: my( std::make_shared<database_api_impl>( db, app_options ) )
{ // Nothing else to do
}
database_api::~database_api() = default;
database_api_helper::database_api_helper( graphene::chain::database& db, const application_options* app_options )
:_db(db), _app_options(app_options)
{ // Nothing else to do
}
database_api_helper::database_api_helper( const graphene::app::application& app )
:_db( *app.chain_database() ), _app_options( &app.get_options() )
{ // Nothing else to do
}
database_api_impl::database_api_impl( graphene::chain::database& db, const application_options* app_options )
:database_api_helper( db, app_options )
{
dlog("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) );
});
try
{
amount_in_collateral_index = &_db.get_index_type< primary_index< call_order_index > >()
.get_secondary_index<graphene::api_helper_indexes::amount_in_collateral_index>();
}
catch( const fc::assert_exception& )
{
amount_in_collateral_index = nullptr;
}
try
{
asset_in_liquidity_pools_index = &_db.get_index_type< primary_index< liquidity_pool_index > >()
.get_secondary_index<graphene::api_helper_indexes::asset_in_liquidity_pools_index>();
}
catch( const fc::assert_exception& )
{
asset_in_liquidity_pools_index = nullptr;
}
try
{
next_object_ids_index = &_db.get_index_type< primary_index< simple_index< chain_property_object > > >()
.get_secondary_index<graphene::api_helper_indexes::next_object_ids_index>();
}
catch( const fc::assert_exception& )
{
next_object_ids_index = nullptr;
}
}
database_api_impl::~database_api_impl()
{
dlog("freeing database api ${x}", ("x",int64_t(this)) );
}
//////////////////////////////////////////////////////////////////////
// //
// Objects //
// //
//////////////////////////////////////////////////////////////////////
fc::variants database_api::get_objects( const vector<object_id_type>& ids, optional<bool> subscribe )const
{
return my->get_objects( ids, subscribe );
}
fc::variants database_api_impl::get_objects( const vector<object_id_type>& ids, optional<bool> subscribe )const
{
bool to_subscribe = get_whether_to_subscribe( subscribe );
fc::variants result;
result.reserve(ids.size());
std::transform(ids.begin(), ids.end(), std::back_inserter(result),
[this,to_subscribe](object_id_type id) -> fc::variant {
if(auto obj = _db.find_object(id))
{
if( to_subscribe && !id.is<operation_history_id_type>() && !id.is<account_history_id_type>() )
this->subscribe_to_item( 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_auto_subscription( bool enable )
{
my->set_auto_subscription( enable );
}
void database_api_impl::set_auto_subscription( bool enable )
{
_enabled_auto_subscription = enable;
}
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<maybe_signed_block_header> database_api::get_block_header(
uint32_t block_num, const optional<bool>& with_witness_signature )const
{
bool with_signature = ( with_witness_signature.valid() && *with_witness_signature );
return my->get_block_header( block_num, with_signature );
}
optional<maybe_signed_block_header> database_api_impl::get_block_header(
uint32_t block_num, bool with_witness_signature )const
{
auto result = _db.fetch_block_by_number(block_num);
if(result)
return maybe_signed_block_header( *result, with_witness_signature );
return {};
}
map<uint32_t, optional<maybe_signed_block_header>> database_api::get_block_header_batch(
const vector<uint32_t>& block_nums, const optional<bool>& with_witness_signatures )const
{
bool with_signatures = ( with_witness_signatures.valid() && *with_witness_signatures );
return my->get_block_header_batch( block_nums, with_signatures );
}
map<uint32_t, optional<maybe_signed_block_header>> database_api_impl::get_block_header_batch(
const vector<uint32_t>& block_nums, bool with_witness_signatures )const
{
map<uint32_t, optional<maybe_signed_block_header>> results;
for (const uint32_t block_num : block_nums)
{
results[block_num] = get_block_header( block_num, with_witness_signatures );
}
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());
}
object_id_type database_api::get_next_object_id( uint8_t space_id, uint8_t type_id,
bool with_pending_transactions )const
{
return my->get_next_object_id( space_id, type_id, with_pending_transactions );
}
object_id_type database_api_impl::get_next_object_id( uint8_t space_id, uint8_t type_id,
bool with_pending_transactions )const
{
if( with_pending_transactions )
return _db.get_index( space_id, type_id ).get_next_id();
FC_ASSERT( next_object_ids_index, "api_helper_indexes plugin is not enabled on this server." );
return next_object_ids_index->get_next_id( space_id, type_id );
}
//////////////////////////////////////////////////////////////////////
// //
// Keys //
// //
//////////////////////////////////////////////////////////////////////
vector<flat_set<account_id_type>> database_api::get_key_references( vector<public_key_type> key )const
{
return my->get_key_references( key );
}
/**
* @return all accounts that referr to the key or account id in their owner or active authorities.
*/
vector<flat_set<account_id_type>> database_api_impl::get_key_references( vector<public_key_type> keys )const
{
// api_helper_indexes plugin is required for accessing the secondary index
FC_ASSERT( _app_options && _app_options->has_api_helper_indexes_plugin,
"api_helper_indexes plugin is not enabled on this server." );
const auto configured_limit = _app_options->api_limit_get_key_references;
FC_ASSERT( keys.size() <= configured_limit,
"Number of querying keys can not be greater than ${configured_limit}",
("configured_limit", configured_limit) );
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< flat_set<account_id_type> > final_result;
final_result.reserve(keys.size());
for( auto& key : keys )
{
address a1( pts_address(key, false) ); // version = 56 (default)
address a2( pts_address(key, true) ); // version = 56 (default)
address a3( pts_address(key, false, 0) );
address a4( pts_address(key, true, 0) );
address a5( key );
flat_set<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.insert(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.insert(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;
}
// api_helper_indexes plugin is required for accessing the secondary index
FC_ASSERT( _app_options && _app_options->has_api_helper_indexes_plugin,
"api_helper_indexes plugin is not enabled on this server." );
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 )->get_id();
}
vector<optional<account_object>> database_api::get_accounts( const vector<std::string>& account_names_or_ids,
optional<bool> subscribe )const
{
return my->get_accounts( account_names_or_ids, subscribe );
}
vector<optional<account_object>> database_api_impl::get_accounts( const vector<std::string>& account_names_or_ids,
optional<bool> subscribe )const
{
bool to_subscribe = get_whether_to_subscribe( subscribe );
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,to_subscribe](std::string id_or_name) -> optional<account_object> {
const account_object *account = get_account_from_string(id_or_name, false);
if(account == nullptr)
return {};
if( to_subscribe )
subscribe_to_item( account->id );
return *account;
});
return result;
}
std::map<string, full_account, std::less<>> database_api::get_full_accounts( const vector<string>& names_or_ids,
const optional<bool>& subscribe )const
{
return my->get_full_accounts( names_or_ids, subscribe );
}
std::map<std::string, full_account, std::less<>> database_api_impl::get_full_accounts(
const vector<std::string>& names_or_ids, const optional<bool>& subscribe )
{
FC_ASSERT( _app_options, "Internal error" );
const auto configured_limit = _app_options->api_limit_get_full_accounts;
FC_ASSERT( names_or_ids.size() <= configured_limit,
"Number of querying accounts can not be greater than ${configured_limit}",
("configured_limit", configured_limit) );
bool to_subscribe = get_whether_to_subscribe( subscribe );
std::map<std::string, full_account, std::less<>> results;
for (const std::string& account_name_or_id : names_or_ids)
{
const account_object* account = get_account_from_string(account_name_or_id, false);
if( !account )
continue;
if( to_subscribe && _subscribed_accounts.size() < _app_options->api_limit_get_full_accounts_subscribe )
{
_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);
}
size_t api_limit_get_full_accounts_lists = static_cast<size_t>(
_app_options->api_limit_get_full_accounts_lists );
// Add the account's proposals (if the data is available)
if( _app_options && _app_options->has_api_helper_indexes_plugin )
{
const auto& proposal_idx = _db.get_index_type< primary_index< proposal_index > >();
const auto& proposals_by_account = proposal_idx.get_secondary_index<
graphene::chain::required_approval_index>();
auto required_approvals_itr = proposals_by_account._account_to_proposals.find( account->get_id() );
if( required_approvals_itr != proposals_by_account._account_to_proposals.end() )
{
acnt.proposals.reserve( std::min(required_approvals_itr->second.size(),
api_limit_get_full_accounts_lists) );
for( auto proposal_id : required_approvals_itr->second )
{
if(acnt.proposals.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.proposals = true;
break;
}
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->get_id() );
for( const auto& balance : balances )
{
if(acnt.balances.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.balances = true;
break;
}
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->get_id());
for(auto itr = vesting_range.first; itr != vesting_range.second; ++itr)
{
if(acnt.vesting_balances.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.vesting_balances = true;
break;
}
acnt.vesting_balances.emplace_back(*itr);
}
// Add the account's orders
auto order_range = _db.get_index_type<limit_order_index>().indices().get<by_account>()
.equal_range(account->get_id());
for(auto itr = order_range.first; itr != order_range.second; ++itr)
{
if(acnt.limit_orders.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.limit_orders = true;
break;
}
acnt.limit_orders.emplace_back(*itr);
}
auto call_range = _db.get_index_type<call_order_index>().indices().get<by_account>()
.equal_range(account->get_id());
for(auto itr = call_range.first; itr != call_range.second; ++itr)
{
if(acnt.call_orders.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.call_orders = true;
break;
}
acnt.call_orders.emplace_back(*itr);
}
auto settle_range = _db.get_index_type<force_settlement_index>().indices().get<by_account>()
.equal_range(account->get_id());
for(auto itr = settle_range.first; itr != settle_range.second; ++itr)
{
if(acnt.settle_orders.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.settle_orders = true;
break;
}
acnt.settle_orders.emplace_back(*itr);
}
// get assets issued by user
auto asset_range = _db.get_index_type<asset_index>().indices().get<by_issuer>().equal_range(account->get_id());
for(auto itr = asset_range.first; itr != asset_range.second; ++itr)
{
if(acnt.assets.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.assets = true;
break;
}
acnt.assets.emplace_back(itr->get_id());
}
// get withdraws permissions
auto withdraw_indices = _db.get_index_type<withdraw_permission_index>().indices();
auto withdraw_from_range = withdraw_indices.get<by_from>().equal_range(account->get_id());
for(auto itr = withdraw_from_range.first; itr != withdraw_from_range.second; ++itr)
{
if(acnt.withdraws_from.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.withdraws_from = true;
break;
}
acnt.withdraws_from.emplace_back(*itr);
}
auto withdraw_authorized_range = withdraw_indices.get<by_authorized>().equal_range(account->get_id());
for(auto itr = withdraw_authorized_range.first; itr != withdraw_authorized_range.second; ++itr)
{
if(acnt.withdraws_to.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.withdraws_to = true;
break;
}
acnt.withdraws_to.emplace_back(*itr);
}
// get htlcs
auto htlc_from_range = _db.get_index_type<htlc_index>().indices().get<by_from_id>()
.equal_range(account->get_id());
for(auto itr = htlc_from_range.first; itr != htlc_from_range.second; ++itr)
{
if(acnt.htlcs_from.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.htlcs_from = true;
break;
}
acnt.htlcs_from.emplace_back(*itr);
}
auto htlc_to_range = _db.get_index_type<htlc_index>().indices().get<by_to_id>().equal_range(account->get_id());
for(auto itr = htlc_to_range.first; itr != htlc_to_range.second; ++itr)
{
if(acnt.htlcs_to.size() >= api_limit_get_full_accounts_lists) {
acnt.more_data_available.htlcs_to = true;
break;
}
acnt.htlcs_to.emplace_back(*itr);
}
results[account_name_or_id] = acnt;
}
return results;
}
vector<account_statistics_object> database_api::get_top_voters(uint32_t limit)const
{
return my->get_top_voters( limit );
}
vector<account_statistics_object> database_api_impl::get_top_voters(uint32_t limit)const
{
FC_ASSERT( _app_options, "Internal error" );
const auto configured_limit = _app_options->api_limit_get_top_voters;
FC_ASSERT( limit <= configured_limit,
"limit can not be greater than ${configured_limit}",
("configured_limit", configured_limit) );
vector<account_statistics_object> result;
auto last_vote_tally_time = _db.get_dynamic_global_properties().last_vote_tally_time;
const auto& idx = _db.get_index_type<account_stats_index>().indices().get<by_voting_power_active>();
for(auto itr = idx.begin(); result.size() < limit && itr != idx.end() && itr->vote_tally_time >= last_vote_tally_time; ++itr)
{
result.emplace_back(*itr);
}
return result;
}
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
{
// api_helper_indexes plugin is required for accessing the secondary index
FC_ASSERT( _app_options && _app_options->has_api_helper_indexes_plugin,
"api_helper_indexes plugin is not enabled on this server." );
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)->get_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
{
return get_accounts( account_names, false );
}
map<string, account_id_type, std::less<>> database_api::lookup_accounts( const string& lower_bound_name,
uint32_t limit,
const optional<bool>& subscribe )const
{
return my->lookup_accounts( lower_bound_name, limit, subscribe );
}
map<string, account_id_type, std::less<>> database_api_impl::lookup_accounts( const string& lower_bound_name,
uint32_t limit,
const optional<bool>& subscribe )const
{
FC_ASSERT( _app_options, "Internal error" );
const auto configured_limit = _app_options->api_limit_lookup_accounts;
FC_ASSERT( limit <= configured_limit,
"limit can not be greater than ${configured_limit}",
("configured_limit", configured_limit) );
const auto& accounts_by_name = _db.get_index_type<account_index>().indices().get<by_name>();
map<string, account_id_type, std::less<>> result;
if( limit == 0 ) // shortcut to save a database query
return result;
// In addition to the common auto-subscription rules, here we auto-subscribe if only look for one account
bool to_subscribe = (limit == 1 && get_whether_to_subscribe( subscribe ));
for( auto itr = accounts_by_name.lower_bound(lower_bound_name);
limit > 0 && itr != accounts_by_name.end();
++itr, --limit )
{
result.insert(make_pair(itr->name, itr->get_id()));
if( to_subscribe )
subscribe_to_item( itr->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->get_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
const auto& balance_index = _db.get_index_type< primary_index< account_balance_index > >();
const auto& balances = balance_index.get_secondary_index< balances_by_account_index >()
.get_account_balances( acnt );
for( const auto& balance : balances )
result.push_back( balance.second->get_balance() );
}
else
{
result.reserve(assets.size());
std::transform(assets.begin(), assets.end(), std::back_inserter(result),
[this, acnt](asset_id_type id) { return _db.get_balance(acnt, id); });
}
return result;
}
vector<asset> database_api::get_named_account_balances( const std::string& name,
const flat_set<asset_id_type>& assets )const
{
return my->get_account_balances( name, assets );
}
vector<balance_object> database_api::get_balance_objects( const vector<address>& addrs )const
{
return my->get_balance_objects( addrs );
}
vector<balance_object> database_api_impl::get_balance_objects( const vector<address>& addrs )const
{
try
{
const auto& bal_idx = _db.get_index_type<balance_index>();
const auto& by_owner_idx = bal_idx.indices().get<by_owner>();
vector<balance_object> result;
for( const auto& owner : addrs )
{
auto itr = by_owner_idx.lower_bound( boost::make_tuple( owner, asset_id_type(0) ) );
while( itr != by_owner_idx.end() && itr->owner == owner )
{
result.push_back( *itr );
++itr;
}
}
return result;
}
FC_CAPTURE_AND_RETHROW( (addrs) )
}
vector<asset> database_api::get_vested_balances( const vector<balance_id_type>& objs )const
{
return my->get_vested_balances( objs );
}
vector<asset> database_api_impl::get_vested_balances( const vector<balance_id_type>& objs )const
{
try
{
vector<asset> result;
result.reserve( objs.size() );
auto now = _db.head_block_time();
for( auto obj : objs )
result.push_back( obj(_db).available( now ) );
return result;
} FC_CAPTURE_AND_RETHROW( (objs) )
}
vector<vesting_balance_object> database_api::get_vesting_balances( const std::string account_id_or_name )const
{
return my->get_vesting_balances( account_id_or_name );
}
vector<vesting_balance_object> database_api_impl::get_vesting_balances( const std::string account_id_or_name )const
{
try
{
const account_id_type account_id = get_account_from_string(account_id_or_name)->get_id();
vector<vesting_balance_object> result;
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,
[&result](const vesting_balance_object& balance) {
result.emplace_back(balance);
});
return result;
}
FC_CAPTURE_AND_RETHROW( (account_id_or_name) );
}
//////////////////////////////////////////////////////////////////////
// //
// Assets //
// //
//////////////////////////////////////////////////////////////////////
asset_id_type database_api::get_asset_id_from_string(const std::string& symbol_or_id)const
{
return my->get_asset_from_string( symbol_or_id )->get_id();
}
vector<optional<extended_asset_object>> database_api::get_assets(
const vector<std::string>& asset_symbols_or_ids,
optional<bool> subscribe )const
{
return my->get_assets( asset_symbols_or_ids, subscribe );
}
vector<optional<extended_asset_object>> database_api_impl::get_assets(
const vector<std::string>& asset_symbols_or_ids,
optional<bool> subscribe )const
{
bool to_subscribe = get_whether_to_subscribe( subscribe );
vector<optional<extended_asset_object>> result; result.reserve(asset_symbols_or_ids.size());
std::transform(asset_symbols_or_ids.begin(), asset_symbols_or_ids.end(), std::back_inserter(result),
[this,to_subscribe](std::string id_or_name) -> optional<extended_asset_object> {
const asset_object* asset_obj = get_asset_from_string( id_or_name, false );
if( asset_obj == nullptr )
return {};
if( to_subscribe )
subscribe_to_item( asset_obj->id );
return extend_asset( *asset_obj );
});
return result;
}
vector<extended_asset_object> database_api::list_assets(const string& lower_bound_symbol, uint32_t limit)const
{
return my->list_assets( lower_bound_symbol, limit );
}
vector<extended_asset_object> database_api_impl::list_assets(const string& lower_bound_symbol, uint32_t limit)const
{
FC_ASSERT( _app_options, "Internal error" );
const auto configured_limit = _app_options->api_limit_get_assets;
FC_ASSERT( limit <= configured_limit,
"limit can not be greater than ${configured_limit}",
("configured_limit", configured_limit) );
const auto& assets_by_symbol = _db.get_index_type<asset_index>().indices().get<by_symbol>();
vector<extended_asset_object> result;
result.reserve(limit);
auto itr = assets_by_symbol.lower_bound(lower_bound_symbol);
auto end = assets_by_symbol.end();
for( ; limit > 0 && itr != end; ++itr, --limit )
result.emplace_back( extend_asset( *itr ) );
return result;
}
uint64_t database_api::get_asset_count()const
{
return my->get_asset_count();
}