be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
83 lines
3.6 KiB
C++
83 lines
3.6 KiB
C++
// Copyright (c) 2014 The Bitcoin Core developers
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// Copyright (c) 2019-2020 The Hush developers
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// Copyright (c) 2020 The Zcash developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2020 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include "timedata.h"
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#include "netbase.h"
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#include "sync.h"
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#include "ui_interface.h"
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#include "util.h"
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#include "utilstrencodings.h"
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CTimeWarning timeWarning;
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/**
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* Warn if we have seen TIMEDATA_WARNING_SAMPLES peer times, in the version messages of the
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* first TIMEDATA_MAX_SAMPLES unique (by IP address) peers that connect, that are more than
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* TIMEDATA_WARNING_THRESHOLD seconds but less than TIMEDATA_IGNORE_THRESHOLD seconds away
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* from local time.
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*/
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int64_t CTimeWarning::AddTimeData(const CNetAddr& ip, int64_t nTime, int64_t now)
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{
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assert(now >= 0 && now <= INT64_MAX - TIMEDATA_IGNORE_THRESHOLD);
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if (nTime <= now - TIMEDATA_IGNORE_THRESHOLD || nTime >= now + TIMEDATA_IGNORE_THRESHOLD) {
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return 0;
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}
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int64_t nTimeOffset = nTime - now;
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LOCK(cs);
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// Ignore duplicate IPs.
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if (setKnown.size() == TIMEDATA_MAX_SAMPLES || !setKnown.insert(ip).second) {
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return nTimeOffset;
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}
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LogPrintf("Added time data, samples %d, offset %+d (%+d minutes)\n", setKnown.size(), nTimeOffset, nTimeOffset/60);
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if (nPeersBehind + nPeersAhead < TIMEDATA_WARNING_SAMPLES) {
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if (nTimeOffset < -TIMEDATA_WARNING_THRESHOLD) {
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nPeersBehind++;
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} else if (nTimeOffset > TIMEDATA_WARNING_THRESHOLD) {
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nPeersAhead++;
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}
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if (nPeersBehind + nPeersAhead == TIMEDATA_WARNING_SAMPLES) {
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Warn(nPeersAhead, nPeersBehind);
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}
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}
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return nTimeOffset;
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}
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void CTimeWarning::Warn(size_t peersAhead, size_t peersBehind)
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{
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std::string strMessage;
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if (peersBehind >= TIMEDATA_WARNING_MAJORITY) {
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strMessage = _("Warning: Your computer's date and time may be ahead of the rest of the network! If your clock is wrong Hush will not work properly.");
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} else if (peersAhead >= TIMEDATA_WARNING_MAJORITY) {
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strMessage = _("Warning: Your computer's date and time may be behind the rest of the network! If your clock is wrong Hush will not work properly.");
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} else {
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strMessage = _("Warning: Please check that your computer's date and time are correct! If your clock is wrong Hush will not work properly.");
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}
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LogPrintf("*** %s\n", strMessage);
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uiInterface.ThreadSafeMessageBox(strMessage, "", CClientUIInterface::MSG_WARNING);
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}
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