danicoin/src/cryptonote_core/checkpoints_create.cpp
Thomas Winget b261d9207b DNS checkpoint updating added, and daemon flag to enforce them
The daemon should now check for updated checkpoints from
checkpoints.moneropulse.org as well as from the configured json file
every ~1hr (and on launch).

The daemon now has a flag to enable enforcing these checkpoints (rather
    than just printing a warning when they fail).

TODO: an easily configurable list of DNS servers to check for
checkpoints as opposed to the hard-coded "checkpoints.moneropulse.org"
2014-09-30 16:21:37 -04:00

161 lines
6.3 KiB
C++

// Copyright (c) 2014, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#include "checkpoints_create.h"
#include "common/dns_utils.h"
#include "include_base_utils.h"
#include <sstream>
#include "storages/portable_storage_template_helper.h" // epee json include
namespace cryptonote
{
struct t_hashline
{
uint64_t height;
std::string hash;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(height)
KV_SERIALIZE(hash)
END_KV_SERIALIZE_MAP()
};
struct t_hash_json {
std::vector<t_hashline> hashlines;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(hashlines)
END_KV_SERIALIZE_MAP()
};
bool create_checkpoints(cryptonote::checkpoints& checkpoints)
{
ADD_CHECKPOINT(1, "771fbcd656ec1464d3a02ead5e18644030007a0fc664c0a964d30922821a8148");
ADD_CHECKPOINT(10, "c0e3b387e47042f72d8ccdca88071ff96bff1ac7cde09ae113dbb7ad3fe92381");
ADD_CHECKPOINT(100, "ac3e11ca545e57c49fca2b4e8c48c03c23be047c43e471e1394528b1f9f80b2d");
ADD_CHECKPOINT(1000, "5acfc45acffd2b2e7345caf42fa02308c5793f15ec33946e969e829f40b03876");
ADD_CHECKPOINT(10000, "c758b7c81f928be3295d45e230646de8b852ec96a821eac3fea4daf3fcac0ca2");
ADD_CHECKPOINT(22231, "7cb10e29d67e1c069e6e11b17d30b809724255fee2f6868dc14cfc6ed44dfb25");
ADD_CHECKPOINT(29556, "53c484a8ed91e4da621bb2fa88106dbde426fe90d7ef07b9c1e5127fb6f3a7f6");
ADD_CHECKPOINT(50000, "0fe8758ab06a8b9cb35b7328fd4f757af530a5d37759f9d3e421023231f7b31c");
ADD_CHECKPOINT(80000, "a62dcd7b536f22e003ebae8726e9e7276f63d594e264b6f0cd7aab27b66e75e3");
ADD_CHECKPOINT(202612, "bbd604d2ba11ba27935e006ed39c9bfdd99b76bf4a50654bc1e1e61217962698");
ADD_CHECKPOINT(202613, "e2aa337e78df1f98f462b3b1e560c6b914dec47b610698b7b7d1e3e86b6197c2");
ADD_CHECKPOINT(202614, "c29e3dc37d8da3e72e506e31a213a58771b24450144305bcba9e70fa4d6ea6fb");
ADD_CHECKPOINT(205000, "5d3d7a26e6dc7535e34f03def711daa8c263785f73ec1fadef8a45880fde8063");
ADD_CHECKPOINT(220000, "9613f455933c00e3e33ac315cc6b455ee8aa0c567163836858c2d9caff111553");
ADD_CHECKPOINT(230300, "bae7a80c46859db355556e3a9204a337ae8f24309926a1312323fdecf1920e61");
ADD_CHECKPOINT(230700, "93e631240ceac831da1aebfc5dac8f722c430463024763ebafa888796ceaeedf");
ADD_CHECKPOINT(231350, "b5add137199b820e1ea26640e5c3e121fd85faa86a1e39cf7e6cc097bdeb1131");
ADD_CHECKPOINT(232150, "955de8e6b6508af2c24f7334f97beeea651d78e9ade3ab18fec3763be3201aa8");
return true;
}
bool load_checkpoints_from_json(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath)
{
boost::system::error_code errcode;
if (! (boost::filesystem::exists(json_hashfile_fullpath, errcode)))
{
LOG_PRINT_L0("Blockchain checkpoints file not found");
return true;
}
LOG_PRINT_L0("Adding checkpoints from blockchain hashfile");
uint64_t prev_max_height = checkpoints.get_max_height();
LOG_PRINT_L0("Hard-coded max checkpoint height is " << prev_max_height);
t_hash_json hashes;
epee::serialization::load_t_from_json_file(hashes, json_hashfile_fullpath);
for (std::vector<t_hashline>::const_iterator it = hashes.hashlines.begin(); it != hashes.hashlines.end(); )
{
uint64_t height;
height = it->height;
if (height <= prev_max_height) {
LOG_PRINT_L0("ignoring checkpoint height " << height);
} else {
std::string blockhash = it->hash;
LOG_PRINT_L0("Adding checkpoint height " << height << ", hash=" << blockhash);
ADD_CHECKPOINT(height, blockhash);
}
++it;
}
return true;
}
bool load_checkpoints_from_dns(cryptonote::checkpoints& checkpoints, const std::string& url)
{
bool avail, valid;
auto records = tools::DNSResolver::instance().get_txt_record(url, avail, valid);
if (avail && !valid)
{
LOG_ERROR("DNSSEC present and failed validation for query to" << url);
return false;
}
for (auto& record : records)
{
auto pos = record.find(":");
if (pos != std::string::npos)
{
uint64_t height;
crypto::hash hash;
// parse the first part as uint64_t,
// if this fails move on to the next record
std::stringstream ss(record.substr(0, pos));
if (!(ss >> height))
{
continue;
}
// parse the second part as crypto::hash,
// if this fails move on to the next record
std::string hashStr = record.substr(pos + 1);
if (!epee::string_tools::parse_tpod_from_hex_string(hashStr, hash))
{
continue;
}
ADD_CHECKPOINT(height, hashStr);
}
}
return true;
}
bool load_new_checkpoints(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath)
{
// TODO: replace hard-coded url with const string or #define
return (load_checkpoints_from_json(checkpoints, json_hashfile_fullpath) && load_checkpoints_from_dns(checkpoints, "checkpoints.moneropulse.org"));
}
} // namespace cryptonote