74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
// Copyright (c) 2011-2016 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "Checkpoints.h"
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#include "Common/StringTools.h"
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using namespace Logging;
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namespace CryptoNote {
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//---------------------------------------------------------------------------
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Checkpoints::Checkpoints(Logging::ILogger &log) : logger(log, "checkpoints") {}
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//---------------------------------------------------------------------------
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bool Checkpoints::add_checkpoint(uint32_t height, const std::string &hash_str) {
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Crypto::Hash h = NULL_HASH;
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if (!Common::podFromHex(hash_str, h)) {
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logger(ERROR) << "WRONG HASH IN CHECKPOINTS!!!";
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return false;
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}
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if (!(0 == m_points.count(height))) {
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logger(ERROR) << "WRONG HASH IN CHECKPOINTS!!!";
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return false;
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}
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m_points[height] = h;
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return true;
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}
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//---------------------------------------------------------------------------
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bool Checkpoints::is_in_checkpoint_zone(uint32_t height) const {
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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(uint32_t height, const Crypto::Hash &h,
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bool &is_a_checkpoint) const {
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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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logger(Logging::INFO, Logging::GREEN)
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<< "CHECKPOINT PASSED FOR HEIGHT " << height << " " << h;
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return true;
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} else {
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logger(Logging::ERROR) << "CHECKPOINT FAILED FOR HEIGHT " << height
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<< ". EXPECTED HASH: " << it->second
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<< ", 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(uint32_t height, const Crypto::Hash &h) const {
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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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bool Checkpoints::is_alternative_block_allowed(uint32_t blockchain_height,
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uint32_t block_height) const {
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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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uint32_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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