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316 lines
12 KiB
316 lines
12 KiB
// Copyright (c) 2014-2020, 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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#include "checkpoints.h"
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#include "common/dns_utils.h"
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#include "string_tools.h"
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#include "storages/portable_storage_template_helper.h" // epee json include
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#include "serialization/keyvalue_serialization.h"
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#include <functional>
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#include <vector>
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using namespace epee;
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "checkpoints"
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namespace cryptonote
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{
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/**
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* @brief struct for loading a checkpoint from json
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*/
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struct t_hashline
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{
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uint64_t height; //!< the height of the checkpoint
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std::string hash; //!< the hash for the checkpoint
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(height)
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KV_SERIALIZE(hash)
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END_KV_SERIALIZE_MAP()
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};
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/**
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* @brief struct for loading many checkpoints from json
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*/
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struct t_hash_json {
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std::vector<t_hashline> hashlines; //!< the checkpoint lines from the file
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(hashlines)
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END_KV_SERIALIZE_MAP()
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};
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//---------------------------------------------------------------------------
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checkpoints::checkpoints()
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{
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}
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//---------------------------------------------------------------------------
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bool checkpoints::add_checkpoint(uint64_t height, const std::string& hash_str, const std::string& difficulty_str)
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{
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crypto::hash h = crypto::null_hash;
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bool r = epee::string_tools::hex_to_pod(hash_str, h);
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CHECK_AND_ASSERT_MES(r, false, "Failed to parse checkpoint hash string into binary representation!");
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// return false if adding at a height we already have AND the hash is different
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if (m_points.count(height))
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{
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CHECK_AND_ASSERT_MES(h == m_points[height], false, "Checkpoint at given height already exists, and hash for new checkpoint was different!");
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}
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m_points[height] = h;
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if (!difficulty_str.empty())
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{
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try
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{
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difficulty_type difficulty(difficulty_str);
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if (m_difficulty_points.count(height))
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{
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CHECK_AND_ASSERT_MES(difficulty == m_difficulty_points[height], false, "Difficulty checkpoint at given height already exists, and difficulty for new checkpoint was different!");
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}
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m_difficulty_points[height] = difficulty;
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}
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catch (...)
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{
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LOG_ERROR("Failed to parse difficulty checkpoint: " << difficulty_str);
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return false;
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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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bool checkpoints::is_in_checkpoint_zone(uint64_t height) const
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{
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return !m_points.empty() && (height <= (--m_points.end())->first);
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}
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//---------------------------------------------------------------------------
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bool checkpoints::check_block(uint64_t height, const crypto::hash& h, bool& is_a_checkpoint) const
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{
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auto it = m_points.find(height);
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is_a_checkpoint = it != m_points.end();
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if(!is_a_checkpoint)
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return true;
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if(it->second == h)
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{
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MINFO("CHECKPOINT PASSED FOR HEIGHT " << height << " " << h);
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return true;
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}else
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{
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MWARNING("CHECKPOINT FAILED FOR HEIGHT " << height << ". EXPECTED HASH: " << it->second << ", FETCHED HASH: " << h);
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return false;
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}
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}
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//---------------------------------------------------------------------------
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bool checkpoints::check_block(uint64_t height, const crypto::hash& h) const
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{
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bool ignored;
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return check_block(height, h, ignored);
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}
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//---------------------------------------------------------------------------
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//FIXME: is this the desired behavior?
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bool checkpoints::is_alternative_block_allowed(uint64_t blockchain_height, uint64_t block_height) const
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{
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if (0 == block_height)
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return false;
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auto it = m_points.upper_bound(blockchain_height);
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// Is blockchain_height before the first checkpoint?
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if (it == m_points.begin())
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return true;
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--it;
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uint64_t checkpoint_height = it->first;
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return checkpoint_height < block_height;
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}
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//---------------------------------------------------------------------------
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uint64_t checkpoints::get_max_height() const
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{
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if (m_points.empty())
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return 0;
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return m_points.rbegin()->first;
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}
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//---------------------------------------------------------------------------
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const std::map<uint64_t, crypto::hash>& checkpoints::get_points() const
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{
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return m_points;
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}
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//---------------------------------------------------------------------------
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const std::map<uint64_t, difficulty_type>& checkpoints::get_difficulty_points() const
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{
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return m_difficulty_points;
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}
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bool checkpoints::check_for_conflicts(const checkpoints& other) const
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{
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for (auto& pt : other.get_points())
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{
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if (m_points.count(pt.first))
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{
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CHECK_AND_ASSERT_MES(pt.second == m_points.at(pt.first), false, "Checkpoint at given height already exists, and hash for new checkpoint was different!");
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}
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}
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return true;
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}
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bool checkpoints::init_default_checkpoints(network_type nettype)
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{
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if (nettype == TESTNET)
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{
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ADD_CHECKPOINT2(1, "c47b8effcc84e22ddd1b876d059c8fbd3e26e4bdffb6bed8b8f4fe283104a7af", "0x2");
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ADD_CHECKPOINT2(5, "292add330f6cf5f3845dc4cd2f28ce8d211dd487ddcfe1b5d1d545d7b90ff7d1", "0x5df"); //Hard fork to v8
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ADD_CHECKPOINT2(10, "fbdf7d812aa6dd4c5915aadcbf023e722eab1d8ad47c24a230634e688d314798", "0xfa3"); //Hard fork to v9
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ADD_CHECKPOINT2(15, "9b86e40b959d7cfe75366686dfd2657699e85b8c658aa8c20b23f7bc01b38af0", "0x1967"); //Hard fork to v10
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ADD_CHECKPOINT2(20, "8f65c309ba3ed2bf25df2b7d91e1db40c864230aa3caaf823db81bc19e0bd6a3", "0x232b"); //Hard fork to v11
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ADD_CHECKPOINT2(25, "35f2957fdba45d5421561ba2f126a61ec0101b5c2eb79b9e296310acbbdbbe58", "0x2cef"); //Hard fork to v12
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ADD_CHECKPOINT2(30, "32cc5aacce8bea10ae869313e194ba51a30720810f3665433ffeea2818938429", "0x36b3"); //Hard fork to v13
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ADD_CHECKPOINT2(35, "7f1cdd2c4a6002772343ad9de6c5dba743a0be1d326a6f63924511f08b15863a", "0x4077"); //Hard fork to v14
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ADD_CHECKPOINT2(40, "63cf4f703489a881baf63bacd6a3af2b5bde79b558ce123e97313890be6f747f", "0x4a3b"); //Hard fork to v15
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ADD_CHECKPOINT2(45, "65da4c966ae02983c6c8b7ab9b959df612863c379c5e48669061cbbb1e02a3ab", "0x53ff"); //Hard fork to v16
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ADD_CHECKPOINT2(50, "8c68a444b6743a14152f130357be9751e42e82a84f69f25320eda532a830c7b0", "0x5dc3"); //Hard fork to v17
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return true;
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}
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if (nettype == STAGENET)
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{
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return true;
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}
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// make RPC call to daemon
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// curl http://127.0.0.1:34568/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_block","params":{"height":247600}}' -H 'Content-Type: application/json'
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// "wide_cumulative_difficulty": "0x14eb4d0131fe8",
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ADD_CHECKPOINT2(1, "97f4ce4d7879b3bea54dcec738cd2ebb7952b4e9bb9743262310cd5fec749340", "0x2");
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ADD_CHECKPOINT2(6969, "aa7b66e8c461065139b55c29538a39c33ceda93e587f84d490ed573d80511c87", "0x118eef693fd"); //Hard fork to v8
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ADD_CHECKPOINT2(53666, "3f43f56f66ef0c43cf2fd14d0d28fa2aae0ef8f40716773511345750770f1255", "0xb677d6405ae"); //Hard fork to v9
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ADD_CHECKPOINT2(63469, "4e33a9343fc5b86661ec0affaeb5b5a065290602c02d817337e4a979fe5747d8", "0xe7cd9819062"); //Hard fork to v10
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ADD_CHECKPOINT2(81769, "41db9fef8d0ccfa78b570ee9525d4f55de77b510c3ae4b08a1d51b9aec9ade1d", "0x150066455b88"); //Hard fork to v11
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ADD_CHECKPOINT2(82069, "fdea800d23d0b2eea19dec8af31e453e883e8315c97e25c8bb3e88ca164f8369", "0x15079b5fdaa8"); //Hard fork to v12
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ADD_CHECKPOINT2(114969, "b48245956b87f243048fd61021f4b3e5443e57eee7ff8ba4762d18926e80b80c", "0x1ca552b3ec68"); //Hard fork to v13
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ADD_CHECKPOINT2(115257, "338e056551087fe23d6c4b4280244bc5362b004716d85ec799a775f190f9fea9", "0x1cb25f5d4628"); //Hard fork to v14
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ADD_CHECKPOINT2(160777, "9496690579af21f38f00e67e11c2e85a15912fe4f412aad33d1162be1579e755", "0x5376eaa196a8"); //Hard fork to v15
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ADD_CHECKPOINT2(247600, "f5ecf7b9d2376d7b1d4ca7843c7d39c5854b8f94c968bf9bc2072fa2e0c92ef7", "0x14eb4d0131fe8");
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ADD_CHECKPOINT2(251200, "e2df45d2d9a176417a0731215420e775b4f445d888c8ec4d6bbeaabead751f52", "0x163e0e5f70068");
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return true;
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}
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bool checkpoints::load_checkpoints_from_json(const std::string &json_hashfile_fullpath)
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{
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boost::system::error_code errcode;
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if (! (boost::filesystem::exists(json_hashfile_fullpath, errcode)))
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{
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LOG_PRINT_L1("Blockchain checkpoints file not found");
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return true;
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}
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LOG_PRINT_L1("Adding checkpoints from blockchain hashfile");
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uint64_t prev_max_height = get_max_height();
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LOG_PRINT_L1("Hard-coded max checkpoint height is " << prev_max_height);
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t_hash_json hashes;
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if (!epee::serialization::load_t_from_json_file(hashes, json_hashfile_fullpath))
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{
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MERROR("Error loading checkpoints from " << json_hashfile_fullpath);
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return false;
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}
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for (std::vector<t_hashline>::const_iterator it = hashes.hashlines.begin(); it != hashes.hashlines.end(); )
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{
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uint64_t height;
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height = it->height;
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if (height <= prev_max_height) {
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LOG_PRINT_L1("ignoring checkpoint height " << height);
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} else {
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std::string blockhash = it->hash;
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LOG_PRINT_L1("Adding checkpoint height " << height << ", hash=" << blockhash);
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ADD_CHECKPOINT(height, blockhash);
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}
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++it;
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}
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return true;
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}
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bool checkpoints::load_checkpoints_from_dns(network_type nettype)
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{
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std::vector<std::string> records;
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// All four MoneroPulse domains have DNSSEC on and valid
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static const std::vector<std::string> dns_urls = {
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};
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static const std::vector<std::string> testnet_dns_urls = {
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};
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static const std::vector<std::string> stagenet_dns_urls = {
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};
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if (!tools::dns_utils::load_txt_records_from_dns(records, nettype == TESTNET ? testnet_dns_urls : nettype == STAGENET ? stagenet_dns_urls : dns_urls))
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return true; // why true ?
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for (const auto& record : records)
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{
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auto pos = record.find(":");
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if (pos != std::string::npos)
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{
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uint64_t height;
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crypto::hash hash;
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// parse the first part as uint64_t,
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// if this fails move on to the next record
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std::stringstream ss(record.substr(0, pos));
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if (!(ss >> height))
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{
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continue;
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}
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// parse the second part as crypto::hash,
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// if this fails move on to the next record
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std::string hashStr = record.substr(pos + 1);
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if (!epee::string_tools::hex_to_pod(hashStr, hash))
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{
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continue;
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}
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ADD_CHECKPOINT(height, hashStr);
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}
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}
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return true;
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}
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bool checkpoints::load_new_checkpoints(const std::string &json_hashfile_fullpath, network_type nettype, bool dns)
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{
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bool result;
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result = load_checkpoints_from_json(json_hashfile_fullpath);
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if (dns)
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{
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result &= load_checkpoints_from_dns(nettype);
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}
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return result;
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}
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}
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