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Add sharing of groups between databases
* Add source folder keeshare for sharing with corresponding define WITH_XC_KEESHARE * Move common crypto parts to src/crypto/ssh * Extended OpenSSHKey * Move filewatching to own file (currently in two related classes DelayedFileWatcher and BulkFileWatcher) * Small improvements for style and code in several classes * Sharing is secured using RSA-Keys which are generated on demand * Publisher signs the container using their private key * Client can verify the signed container and choose to decline an import, import only once or trust the publisher and automatically import all data of this source henceforth * Integration of settings into Group-Settings, Database-Settings and Application-Settings * Introduced dependency QuaZip as dependency to allow combined export of key container and the (custom format) certificate
This commit is contained in:
Christian Kieschnick
Jonathan White
parent
c1e9f45df9
commit
eca9c658f4
106 changed files with 5828 additions and 503 deletions
238
src/core/FileWatcher.cpp
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238
src/core/FileWatcher.cpp
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/*
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* Copyright (C) 2011 Felix Geyer <debfx@fobos.de>
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* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
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*
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* This program 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 2 or (at your option)
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* version 3 of the License.
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*
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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "FileWatcher.h"
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#include "core/Clock.h"
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#include <QFileInfo>
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#ifdef Q_OS_LINUX
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#include <sys/vfs.h>
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#endif
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namespace
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{
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const int FileChangeDelay = 500;
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const int TimerResolution = 100;
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}
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DelayingFileWatcher::DelayingFileWatcher(QObject* parent)
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: QObject(parent)
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, m_ignoreFileChange(false)
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{
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connect(&m_fileWatcher, SIGNAL(fileChanged(QString)), this, SLOT(onWatchedFileChanged()));
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connect(&m_fileUnblockTimer, SIGNAL(timeout()), this, SLOT(observeFileChanges()));
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connect(&m_fileChangeDelayTimer, SIGNAL(timeout()), SIGNAL(fileChanged()));
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m_fileChangeDelayTimer.setSingleShot(true);
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m_fileUnblockTimer.setSingleShot(true);
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}
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void DelayingFileWatcher::restart()
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{
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m_fileWatcher.addPath(m_filePath);
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}
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void DelayingFileWatcher::stop()
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{
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m_fileWatcher.removePath(m_filePath);
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}
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void DelayingFileWatcher::start(const QString& filePath)
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{
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if (!m_filePath.isEmpty()) {
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m_fileWatcher.removePath(m_filePath);
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}
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#if defined(Q_OS_LINUX)
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struct statfs statfsBuf;
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bool forcePolling = false;
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const auto NFS_SUPER_MAGIC = 0x6969;
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if (!statfs(filePath.toLocal8Bit().constData(), &statfsBuf)) {
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forcePolling = (statfsBuf.f_type == NFS_SUPER_MAGIC);
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} else {
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// if we can't get the fs type let's fall back to polling
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forcePolling = true;
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}
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auto objectName = forcePolling ? QLatin1String("_qt_autotest_force_engine_poller") : QLatin1String("");
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m_fileWatcher.setObjectName(objectName);
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#endif
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m_fileWatcher.addPath(filePath);
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if (!filePath.isEmpty()) {
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m_filePath = filePath;
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}
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}
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void DelayingFileWatcher::ignoreFileChanges()
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{
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m_ignoreFileChange = true;
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m_fileChangeDelayTimer.stop();
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}
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void DelayingFileWatcher::observeFileChanges(bool delayed)
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{
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int timeout = 0;
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if (delayed) {
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timeout = FileChangeDelay;
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} else {
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m_ignoreFileChange = false;
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start(m_filePath);
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}
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if (timeout > 0 && !m_fileUnblockTimer.isActive()) {
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m_fileUnblockTimer.start(timeout);
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}
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}
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void DelayingFileWatcher::onWatchedFileChanged()
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{
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if (m_ignoreFileChange) {
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// the client forcefully silenced us
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return;
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}
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if (m_fileChangeDelayTimer.isActive()) {
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// we are waiting to fire the delayed fileChanged event, so nothing
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// to do here
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return;
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}
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m_fileChangeDelayTimer.start(FileChangeDelay);
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}
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BulkFileWatcher::BulkFileWatcher(QObject* parent)
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: QObject(parent)
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{
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connect(&m_fileWatcher, SIGNAL(fileChanged(QString)), SLOT(handleFileChanged(QString)));
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connect(&m_fileWatcher, SIGNAL(directoryChanged(QString)), SLOT(handleDirectoryChanged(QString)));
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connect(&m_fileWatchUnblockTimer, SIGNAL(timeout()), this, SLOT(observeFileChanges()));
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m_fileWatchUnblockTimer.setSingleShot(true);
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}
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void BulkFileWatcher::clear()
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{
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for (const QString& path : m_fileWatcher.files() + m_fileWatcher.directories()) {
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const QFileInfo info(path);
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m_fileWatcher.removePath(info.absoluteFilePath());
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m_fileWatcher.removePath(info.absolutePath());
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}
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m_filePaths.clear();
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m_watchedFilesInDirectory.clear();
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m_ignoreFilesChangess.clear();
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}
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void BulkFileWatcher::removePath(const QString& path)
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{
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const QFileInfo info(path);
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m_fileWatcher.removePath(info.absoluteFilePath());
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m_fileWatcher.removePath(info.absolutePath());
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m_filePaths.remove(info.absoluteFilePath());
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m_filePaths.remove(info.absolutePath());
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m_watchedFilesInDirectory[info.absolutePath()].remove(info.absoluteFilePath());
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}
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void BulkFileWatcher::addPath(const QString& path)
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{
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const QFileInfo info(path);
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m_fileWatcher.addPath(info.absoluteFilePath());
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m_fileWatcher.addPath(info.absolutePath());
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m_filePaths.insert(info.absoluteFilePath());
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m_filePaths.insert(info.absolutePath());
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m_watchedFilesInDirectory[info.absolutePath()][info.absoluteFilePath()] = info.exists();
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}
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void BulkFileWatcher::restart(const QString& path)
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{
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const QFileInfo info(path);
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Q_ASSERT(m_filePaths.contains(info.absoluteFilePath()));
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Q_ASSERT(m_filePaths.contains(info.absolutePath()));
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m_fileWatcher.addPath(info.absoluteFilePath());
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m_fileWatcher.addPath(info.absolutePath());
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}
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void BulkFileWatcher::handleFileChanged(const QString& path)
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{
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addPath(path);
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const QFileInfo info(path);
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if (m_ignoreFilesChangess[info.canonicalFilePath()] > Clock::currentDateTimeUtc()) {
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// changes are blocked
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return;
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}
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emit fileChanged(path);
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}
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void BulkFileWatcher::handleDirectoryChanged(const QString& path)
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{
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qDebug("Directory changed %s", qPrintable(path));
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const QFileInfo directory(path);
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const QMap<QString, bool>& watchedFiles = m_watchedFilesInDirectory[directory.absolutePath()];
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for (const QString& file : watchedFiles.keys()) {
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const QFileInfo info(file);
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const bool existed = watchedFiles[info.absoluteFilePath()];
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if (!info.exists() && existed) {
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qDebug("Remove watch file %s", qPrintable(info.absoluteFilePath()));
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m_fileWatcher.removePath(info.absolutePath());
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emit fileRemoved(info.absoluteFilePath());
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}
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if (!existed && info.exists()) {
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qDebug("Add watch file %s", qPrintable(info.absoluteFilePath()));
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m_fileWatcher.addPath(info.absolutePath());
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emit fileCreated(info.absoluteFilePath());
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}
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if (existed && info.exists()) {
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qDebug("Refresh watch file %s", qPrintable(info.absoluteFilePath()));
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m_fileWatcher.removePath(info.absolutePath());
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m_fileWatcher.addPath(info.absolutePath());
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emit fileChanged(info.absoluteFilePath());
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}
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m_watchedFilesInDirectory[info.absolutePath()][info.absoluteFilePath()] = info.exists();
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}
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}
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void BulkFileWatcher::ignoreFileChanges(const QString& path)
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{
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const QFileInfo info(path);
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m_ignoreFilesChangess[info.canonicalFilePath()] = Clock::currentDateTimeUtc().addMSecs(FileChangeDelay);
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}
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void BulkFileWatcher::observeFileChanges(bool delayed)
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{
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int timeout = 0;
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if (delayed) {
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timeout = TimerResolution;
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} else {
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const QDateTime current = Clock::currentDateTimeUtc();
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for (const QString& key : m_ignoreFilesChangess.keys()) {
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if (m_ignoreFilesChangess[key] < current) {
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// We assume that there was no concurrent change of the database
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// during our block - so no need to reimport
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qDebug("Remove block from %s", qPrintable(key));
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m_ignoreFilesChangess.remove(key);
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continue;
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}
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qDebug("Keep block from %s", qPrintable(key));
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timeout = static_cast<int>(current.msecsTo(m_ignoreFilesChangess[key]));
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}
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}
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if (timeout > 0 && !m_fileWatchUnblockTimer.isActive()) {
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m_fileWatchUnblockTimer.start(timeout);
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}
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}
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