mirror of
https://github.com/ProtonMail/proton-bridge.git
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63 lines
2.5 KiB
C++
63 lines
2.5 KiB
C++
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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#include "LogUtils.h"
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#include <bridgepp/BridgeUtils.h>
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using namespace bridgepp;
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namespace {
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qsizetype const logFileTailMaxLength = 25 * 1024; ///< The maximum length of the portion of log returned by tailOfLatestBridgeLog()
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}
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//****************************************************************************************************************************************************
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/// \brief Return the path of the latest bridge log.
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/// \return The path of the latest bridge log file.
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/// \return An empty string if no bridge log file was found.
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//****************************************************************************************************************************************************
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QString latestBridgeLogPath() {
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QDir const logsDir(userLogsDir());
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if (logsDir.isEmpty()) {
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return QString();
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}
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QFileInfoList files = logsDir.entryInfoList({ "v*.log" }, QDir::Files); // could do sorting, but only by last modification time. we want to sort by creation time.
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std::sort(files.begin(), files.end(), [](QFileInfo const &lhs, QFileInfo const &rhs) -> bool {
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return lhs.birthTime() < rhs.birthTime();
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});
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return files.back().absoluteFilePath();
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}
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//****************************************************************************************************************************************************
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/// Return the maxSize last bytes of the latest bridge log.
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//****************************************************************************************************************************************************
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QByteArray tailOfLatestBridgeLog() {
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QString path = latestBridgeLogPath();
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if (path.isEmpty()) {
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return QByteArray();
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}
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QFile file(path);
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return file.open(QIODevice::Text | QIODevice::ReadOnly) ? file.readAll().right(logFileTailMaxLength) : QByteArray();
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}
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