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The method returned depth + 2 because: - push_back was executed before the condition. - > instead of >= causing one more iteration.
401 lines
14 KiB
C++
401 lines
14 KiB
C++
// Copyright (c) 2014-2016, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#pragma once
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#include <list>
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#include <set>
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#include <map>
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#include <boost/foreach.hpp>
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//#include <boost/bimap.hpp>
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//#include <boost/bimap/multiset_of.hpp>
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#include <boost/archive/binary_iarchive.hpp>
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#include <boost/archive/portable_binary_oarchive.hpp>
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#include <boost/archive/portable_binary_iarchive.hpp>
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#include <boost/serialization/version.hpp>
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#include <boost/multi_index_container.hpp>
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#include <boost/multi_index/ordered_index.hpp>
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#include <boost/multi_index/identity.hpp>
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#include <boost/multi_index/member.hpp>
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#include "syncobj.h"
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#include "net/local_ip.h"
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#include "p2p_protocol_defs.h"
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#include "cryptonote_config.h"
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#include "net_peerlist_boost_serialization.h"
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#define CURRENT_PEERLIST_STORAGE_ARCHIVE_VER 4
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namespace nodetool
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{
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/************************************************************************/
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/* */
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/************************************************************************/
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class peerlist_manager
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{
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public:
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bool init(bool allow_local_ip);
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bool deinit();
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size_t get_white_peers_count(){CRITICAL_REGION_LOCAL(m_peerlist_lock); return m_peers_white.size();}
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size_t get_gray_peers_count(){CRITICAL_REGION_LOCAL(m_peerlist_lock); return m_peers_gray.size();}
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bool merge_peerlist(const std::list<peerlist_entry>& outer_bs);
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bool get_peerlist_head(std::list<peerlist_entry>& bs_head, uint32_t depth = P2P_DEFAULT_PEERS_IN_HANDSHAKE);
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bool get_peerlist_full(std::list<peerlist_entry>& pl_gray, std::list<peerlist_entry>& pl_white);
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bool get_white_peer_by_index(peerlist_entry& p, size_t i);
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bool get_gray_peer_by_index(peerlist_entry& p, size_t i);
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bool append_with_peer_white(const peerlist_entry& pr);
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bool append_with_peer_gray(const peerlist_entry& pr);
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bool set_peer_just_seen(peerid_type peer, uint32_t ip, uint32_t port);
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bool set_peer_just_seen(peerid_type peer, const net_address& addr);
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bool set_peer_unreachable(const peerlist_entry& pr);
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bool is_ip_allowed(uint32_t ip);
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private:
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struct by_time{};
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struct by_id{};
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struct by_addr{};
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struct modify_all_but_id
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{
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modify_all_but_id(const peerlist_entry& ple):m_ple(ple){}
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void operator()(peerlist_entry& e)
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{
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e.id = m_ple.id;
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}
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private:
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const peerlist_entry& m_ple;
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};
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struct modify_all
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{
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modify_all(const peerlist_entry& ple):m_ple(ple){}
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void operator()(peerlist_entry& e)
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{
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e = m_ple;
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}
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private:
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const peerlist_entry& m_ple;
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};
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struct modify_last_seen
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{
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modify_last_seen(time_t last_seen):m_last_seen(last_seen){}
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void operator()(peerlist_entry& e)
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{
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e.last_seen = m_last_seen;
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}
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private:
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time_t m_last_seen;
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};
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typedef boost::multi_index_container<
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peerlist_entry,
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boost::multi_index::indexed_by<
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// access by peerlist_entry::net_adress
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boost::multi_index::ordered_unique<boost::multi_index::tag<by_addr>, boost::multi_index::member<peerlist_entry,net_address,&peerlist_entry::adr> >,
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// sort by peerlist_entry::last_seen<
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boost::multi_index::ordered_non_unique<boost::multi_index::tag<by_time>, boost::multi_index::member<peerlist_entry,int64_t,&peerlist_entry::last_seen> >
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>
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> peers_indexed;
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typedef boost::multi_index_container<
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peerlist_entry,
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boost::multi_index::indexed_by<
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// access by peerlist_entry::id<
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boost::multi_index::ordered_unique<boost::multi_index::tag<by_id>, boost::multi_index::member<peerlist_entry,uint64_t,&peerlist_entry::id> >,
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// access by peerlist_entry::net_adress
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boost::multi_index::ordered_unique<boost::multi_index::tag<by_addr>, boost::multi_index::member<peerlist_entry,net_address,&peerlist_entry::adr> >,
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// sort by peerlist_entry::last_seen<
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boost::multi_index::ordered_non_unique<boost::multi_index::tag<by_time>, boost::multi_index::member<peerlist_entry,int64_t,&peerlist_entry::last_seen> >
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>
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> peers_indexed_old;
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public:
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template <class Archive, class t_version_type>
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void serialize(Archive &a, const t_version_type ver)
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{
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if(ver < 3)
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return;
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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if(ver < 4)
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{
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//loading data from old storage
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peers_indexed_old pio;
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a & pio;
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peers_indexed_from_old(pio, m_peers_white);
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return;
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}
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a & m_peers_white;
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a & m_peers_gray;
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}
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private:
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bool peers_indexed_from_old(const peers_indexed_old& pio, peers_indexed& pi);
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void trim_white_peerlist();
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void trim_gray_peerlist();
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friend class boost::serialization::access;
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epee::critical_section m_peerlist_lock;
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std::string m_config_folder;
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bool m_allow_local_ip;
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peers_indexed m_peers_gray;
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peers_indexed m_peers_white;
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};
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::init(bool allow_local_ip)
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{
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m_allow_local_ip = allow_local_ip;
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::deinit()
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{
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::peers_indexed_from_old(const peers_indexed_old& pio, peers_indexed& pi)
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{
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for(auto x: pio)
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{
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auto by_addr_it = pi.get<by_addr>().find(x.adr);
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if(by_addr_it == pi.get<by_addr>().end())
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{
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pi.insert(x);
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}
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}
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline void peerlist_manager::trim_gray_peerlist()
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{
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while(m_peers_gray.size() > P2P_LOCAL_GRAY_PEERLIST_LIMIT)
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{
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peers_indexed::index<by_time>::type& sorted_index=m_peers_gray.get<by_time>();
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sorted_index.erase(sorted_index.begin());
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}
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}
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//--------------------------------------------------------------------------------------------------
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inline void peerlist_manager::trim_white_peerlist()
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{
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while(m_peers_white.size() > P2P_LOCAL_WHITE_PEERLIST_LIMIT)
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{
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peers_indexed::index<by_time>::type& sorted_index=m_peers_white.get<by_time>();
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sorted_index.erase(sorted_index.begin());
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}
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::merge_peerlist(const std::list<peerlist_entry>& outer_bs)
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{
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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BOOST_FOREACH(const peerlist_entry& be, outer_bs)
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{
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append_with_peer_gray(be);
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}
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// delete extra elements
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trim_gray_peerlist();
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_white_peer_by_index(peerlist_entry& p, size_t i)
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{
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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if(i >= m_peers_white.size())
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return false;
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peers_indexed::index<by_time>::type& by_time_index = m_peers_white.get<by_time>();
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p = *epee::misc_utils::move_it_backward(--by_time_index.end(), i);
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_gray_peer_by_index(peerlist_entry& p, size_t i)
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{
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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if(i >= m_peers_gray.size())
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return false;
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peers_indexed::index<by_time>::type& by_time_index = m_peers_gray.get<by_time>();
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p = *epee::misc_utils::move_it_backward(--by_time_index.end(), i);
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::is_ip_allowed(uint32_t ip)
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{
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//never allow loopback ip
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if(epee::net_utils::is_ip_loopback(ip))
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return false;
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if(!m_allow_local_ip && epee::net_utils::is_ip_local(ip))
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return false;
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_peerlist_head(std::list<peerlist_entry>& bs_head, uint32_t depth)
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{
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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peers_indexed::index<by_time>::type& by_time_index=m_peers_white.get<by_time>();
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uint32_t cnt = 0;
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BOOST_REVERSE_FOREACH(const peers_indexed::value_type& vl, by_time_index)
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{
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if(!vl.last_seen)
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continue;
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if(cnt++ >= depth)
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break;
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bs_head.push_back(vl);
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}
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_peerlist_full(std::list<peerlist_entry>& pl_gray, std::list<peerlist_entry>& pl_white)
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{
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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peers_indexed::index<by_time>::type& by_time_index_gr=m_peers_gray.get<by_time>();
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BOOST_REVERSE_FOREACH(const peers_indexed::value_type& vl, by_time_index_gr)
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{
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pl_gray.push_back(vl);
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}
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peers_indexed::index<by_time>::type& by_time_index_wt=m_peers_white.get<by_time>();
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BOOST_REVERSE_FOREACH(const peers_indexed::value_type& vl, by_time_index_wt)
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{
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pl_white.push_back(vl);
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}
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::set_peer_just_seen(peerid_type peer, uint32_t ip, uint32_t port)
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{
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net_address addr;
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addr.ip = ip;
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addr.port = port;
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return set_peer_just_seen(peer, addr);
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::set_peer_just_seen(peerid_type peer, const net_address& addr)
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{
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TRY_ENTRY();
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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//find in white list
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peerlist_entry ple;
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ple.adr = addr;
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ple.id = peer;
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ple.last_seen = time(NULL);
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return append_with_peer_white(ple);
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CATCH_ENTRY_L0("peerlist_manager::set_peer_just_seen()", false);
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::append_with_peer_white(const peerlist_entry& ple)
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{
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TRY_ENTRY();
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if(!is_ip_allowed(ple.adr.ip))
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return true;
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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//find in white list
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auto by_addr_it_wt = m_peers_white.get<by_addr>().find(ple.adr);
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if(by_addr_it_wt == m_peers_white.get<by_addr>().end())
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{
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//put new record into white list
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m_peers_white.insert(ple);
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trim_white_peerlist();
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}else
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{
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//update record in white list
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m_peers_white.replace(by_addr_it_wt, ple);
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}
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//remove from gray list, if need
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auto by_addr_it_gr = m_peers_gray.get<by_addr>().find(ple.adr);
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if(by_addr_it_gr != m_peers_gray.get<by_addr>().end())
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{
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m_peers_gray.erase(by_addr_it_gr);
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}
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return true;
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CATCH_ENTRY_L0("peerlist_manager::append_with_peer_white()", false);
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::append_with_peer_gray(const peerlist_entry& ple)
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{
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TRY_ENTRY();
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if(!is_ip_allowed(ple.adr.ip))
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return true;
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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//find in white list
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auto by_addr_it_wt = m_peers_white.get<by_addr>().find(ple.adr);
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if(by_addr_it_wt != m_peers_white.get<by_addr>().end())
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return true;
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//update gray list
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auto by_addr_it_gr = m_peers_gray.get<by_addr>().find(ple.adr);
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if(by_addr_it_gr == m_peers_gray.get<by_addr>().end())
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{
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//put new record into white list
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m_peers_gray.insert(ple);
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trim_gray_peerlist();
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}else
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{
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//update record in white list
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m_peers_gray.replace(by_addr_it_gr, ple);
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}
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return true;
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CATCH_ENTRY_L0("peerlist_manager::append_with_peer_gray()", false);
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return true;
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}
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//--------------------------------------------------------------------------------------------------
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}
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BOOST_CLASS_VERSION(nodetool::peerlist_manager, CURRENT_PEERLIST_STORAGE_ARCHIVE_VER)
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