danicoin/src/common/updates.cpp

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// Copyright (c) 2017, 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.
#include "util.h"
#include "dns_utils.h"
#include "updates.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "updates"
namespace tools
{
bool check_updates(const std::string &software, const std::string &buildtag, bool testnet, std::string &version, std::string &hash)
{
std::vector<std::string> records;
bool found = false;
MDEBUG("Checking updates for " << buildtag << " " << software);
// All four MoneroPulse domains have DNSSEC on and valid
static const std::vector<std::string> dns_urls = {
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"updates.moneropulse.org",
"updates.moneropulse.net",
"updates.moneropulse.co",
"updates.moneropulse.se"
};
static const std::vector<std::string> testnet_dns_urls = { "testver.moneropulse.net"
};
if (!tools::dns_utils::load_txt_records_from_dns(records, testnet ? testnet_dns_urls : dns_urls))
return false;
for (const auto& record : records)
{
std::vector<std::string> fields;
boost::split(fields, record, boost::is_any_of(":"));
if (fields.size() != 4)
{
MWARNING("Updates record does not have 4 fields: " << record);
continue;
}
if (software != fields[0] || buildtag != fields[1])
continue;
bool alnum = true;
for (auto c: hash)
if (!isalnum(c))
alnum = false;
if (hash.size() != 64 && !alnum)
{
MWARNING("Invalid hash: " << hash);
continue;
}
// use highest version
if (found)
{
int cmp = vercmp(version.c_str(), fields[2].c_str());
if (cmp > 0)
continue;
if (cmp == 0 && hash != fields[3])
MWARNING("Two matches found for " << software << " version " << version << " on " << buildtag);
}
version = fields[2];
hash = fields[3];
MINFO("Found new version " << version << " with hash " << hash);
found = true;
}
return found;
}
std::string get_update_url(const std::string &software, const std::string &subdir, const std::string &buildtag, const std::string &version, bool user)
{
static const char *base = user ? "https://downloads.getmonero.org/" : "http://updates.getmonero.org/";
#ifdef _WIN32
static const char extension[] = ".zip";
#else
static const char extension[] = ".tar.bz2";
#endif
std::string url;
url = base;
if (!subdir.empty())
url += subdir + "/";
url = url + software + "-" + buildtag + "-v" + version + extension;
return url;
}
}