286 lines
11 KiB
C++
286 lines
11 KiB
C++
/*
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* Copyright (C) by Olivier Goffart <ogoffart@owncloud.com>
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* Copyright (C) by Klaas Freitag <freitag@owncloud.com>
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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 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "account.h"
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#include "propagatedownloadencrypted.h"
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#include "propagatorjobs.h"
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#include "owncloudpropagator.h"
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#include "owncloudpropagator_p.h"
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#include "propagateremotemove.h"
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#include "common/utility.h"
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#include "common/syncjournaldb.h"
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#include "common/syncjournalfilerecord.h"
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#include "filesystem.h"
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#include <qfile.h>
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#include <qdir.h>
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#include <qdiriterator.h>
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#include <qtemporaryfile.h>
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#include <qsavefile.h>
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#include <QDateTime>
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#include <qstack.h>
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#include <QCoreApplication>
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#include <ctime>
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namespace OCC {
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Q_LOGGING_CATEGORY(lcPropagateLocalRemove, "nextcloud.sync.propagator.localremove", QtInfoMsg)
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Q_LOGGING_CATEGORY(lcPropagateLocalMkdir, "nextcloud.sync.propagator.localmkdir", QtInfoMsg)
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Q_LOGGING_CATEGORY(lcPropagateLocalRename, "nextcloud.sync.propagator.localrename", QtInfoMsg)
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QByteArray localFileIdFromFullId(const QByteArray &id)
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{
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return id.left(8);
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}
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/**
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* The code will update the database in case of error.
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* If everything goes well (no error, returns true), the caller is responsible for removing the entries
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* in the database. But in case of error, we need to remove the entries from the database of the files
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* that were deleted.
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*
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* \a path is relative to propagator()->_localDir + _item->_file and should start with a slash
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*/
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bool PropagateLocalRemove::removeRecursively(const QString &path)
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{
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QString absolute = propagator()->fullLocalPath(_item->_file + path);
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QStringList errors;
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QList<QPair<QString, bool>> deleted;
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bool success = FileSystem::removeRecursively(
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absolute,
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[&deleted](const QString &path, bool isDir) {
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// by prepending, a folder deletion may be followed by content deletions
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deleted.prepend(qMakePair(path, isDir));
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},
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&errors);
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if (!success) {
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// We need to delete the entries from the database now from the deleted vector.
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// Do it while avoiding redundant delete calls to the journal.
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QString deletedDir;
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foreach (const auto &it, deleted) {
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if (!it.first.startsWith(propagator()->localPath()))
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continue;
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if (!deletedDir.isEmpty() && it.first.startsWith(deletedDir))
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continue;
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if (it.second) {
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deletedDir = it.first;
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}
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propagator()->_journal->deleteFileRecord(it.first.mid(propagator()->localPath().size()), it.second);
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}
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_error = errors.join(", ");
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}
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return success;
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}
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void PropagateLocalRemove::start()
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{
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qCInfo(lcPropagateLocalRemove) << "Start propagate local remove job";
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_moveToTrash = propagator()->syncOptions()._moveFilesToTrash;
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if (propagator()->_abortRequested)
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return;
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const QString filename = propagator()->fullLocalPath(_item->_file);
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qCInfo(lcPropagateLocalRemove) << "Going to delete:" << filename;
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if (propagator()->localFileNameClash(_item->_file)) {
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done(SyncFileItem::NormalError, tr("Could not remove %1 because of a local file name clash").arg(QDir::toNativeSeparators(filename)));
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return;
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}
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QString removeError;
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if (_moveToTrash) {
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if ((QDir(filename).exists() || FileSystem::fileExists(filename))
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&& !FileSystem::moveToTrash(filename, &removeError)) {
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done(SyncFileItem::NormalError, removeError);
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return;
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}
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} else {
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if (_item->isDirectory()) {
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if (QDir(filename).exists() && !removeRecursively(QString())) {
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done(SyncFileItem::NormalError, _error);
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return;
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}
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} else {
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if (FileSystem::fileExists(filename)
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&& !FileSystem::remove(filename, &removeError)) {
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done(SyncFileItem::NormalError, removeError);
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return;
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}
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}
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}
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propagator()->reportProgress(*_item, 0);
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propagator()->_journal->deleteFileRecord(_item->_originalFile, _item->isDirectory());
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propagator()->_journal->commit("Local remove");
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done(SyncFileItem::Success);
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}
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void PropagateLocalMkdir::start()
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{
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if (propagator()->_abortRequested)
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return;
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startLocalMkdir();
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}
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void PropagateLocalMkdir::setDeleteExistingFile(bool enabled)
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{
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_deleteExistingFile = enabled;
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}
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void PropagateLocalMkdir::startLocalMkdir()
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{
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QDir newDir(propagator()->fullLocalPath(_item->_file));
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QString newDirStr = QDir::toNativeSeparators(newDir.path());
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// When turning something that used to be a file into a directory
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// we need to delete the file first.
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QFileInfo fi(newDirStr);
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if (fi.exists() && fi.isFile()) {
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if (_deleteExistingFile) {
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QString removeError;
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if (!FileSystem::remove(newDirStr, &removeError)) {
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done(SyncFileItem::NormalError,
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tr("could not delete file %1, error: %2")
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.arg(newDirStr, removeError));
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return;
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}
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} else if (_item->_instruction == CSYNC_INSTRUCTION_CONFLICT) {
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QString error;
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if (!propagator()->createConflict(_item, _associatedComposite, &error)) {
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done(SyncFileItem::SoftError, error);
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return;
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}
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}
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}
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if (Utility::fsCasePreserving() && propagator()->localFileNameClash(_item->_file)) {
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qCWarning(lcPropagateLocalMkdir) << "New folder to create locally already exists with different case:" << _item->_file;
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done(SyncFileItem::NormalError, tr("Attention, possible case sensitivity clash with %1").arg(newDirStr));
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return;
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}
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emit propagator()->touchedFile(newDirStr);
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QDir localDir(propagator()->localPath());
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if (!localDir.mkpath(_item->_file)) {
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done(SyncFileItem::NormalError, tr("Could not create folder %1").arg(newDirStr));
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return;
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}
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// Insert the directory into the database. The correct etag will be set later,
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// once all contents have been propagated, because should_update_metadata is true.
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// Adding an entry with a dummy etag to the database still makes sense here
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// so the database is aware that this folder exists even if the sync is aborted
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// before the correct etag is stored.
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SyncFileItem newItem(*_item);
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newItem._etag = "_invalid_";
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const auto result = propagator()->updateMetadata(newItem);
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if (!result) {
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done(SyncFileItem::FatalError, tr("Error updating metadata: %1").arg(result.error()));
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return;
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} else if (*result == Vfs::ConvertToPlaceholderResult::Locked) {
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done(SyncFileItem::SoftError, tr("The file %1 is currently in use").arg(newItem._file));
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return;
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}
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propagator()->_journal->commit("localMkdir");
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auto resultStatus = _item->_instruction == CSYNC_INSTRUCTION_CONFLICT
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? SyncFileItem::Conflict
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: SyncFileItem::Success;
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done(resultStatus);
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}
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void PropagateLocalRename::start()
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{
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if (propagator()->_abortRequested)
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return;
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QString existingFile = propagator()->fullLocalPath(propagator()->adjustRenamedPath(_item->_file));
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QString targetFile = propagator()->fullLocalPath(_item->_renameTarget);
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// if the file is a file underneath a moved dir, the _item->file is equal
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// to _item->renameTarget and the file is not moved as a result.
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if (_item->_file != _item->_renameTarget) {
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propagator()->reportProgress(*_item, 0);
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qCDebug(lcPropagateLocalRename) << "MOVE " << existingFile << " => " << targetFile;
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if (QString::compare(_item->_file, _item->_renameTarget, Qt::CaseInsensitive) != 0
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&& propagator()->localFileNameClash(_item->_renameTarget)) {
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// Only use localFileNameClash for the destination if we know that the source was not
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// the one conflicting (renaming A.txt -> a.txt is OK)
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// Fixme: the file that is the reason for the clash could be named here,
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// it would have to come out the localFileNameClash function
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done(SyncFileItem::NormalError,
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tr("File %1 cannot be renamed to %2 because of a local file name clash")
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.arg(QDir::toNativeSeparators(_item->_file))
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.arg(QDir::toNativeSeparators(_item->_renameTarget)));
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return;
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}
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emit propagator()->touchedFile(existingFile);
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emit propagator()->touchedFile(targetFile);
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QString renameError;
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if (!FileSystem::rename(existingFile, targetFile, &renameError)) {
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done(SyncFileItem::NormalError, renameError);
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return;
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}
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}
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SyncJournalFileRecord oldRecord;
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propagator()->_journal->getFileRecord(_item->_originalFile, &oldRecord);
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propagator()->_journal->deleteFileRecord(_item->_originalFile);
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auto &vfs = propagator()->syncOptions()._vfs;
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auto pinState = vfs->pinState(_item->_originalFile);
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vfs->setPinState(_item->_originalFile, PinState::Inherited);
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const auto oldFile = _item->_file;
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if (!_item->isDirectory()) { // Directories are saved at the end
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SyncFileItem newItem(*_item);
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if (oldRecord.isValid()) {
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newItem._checksumHeader = oldRecord._checksumHeader;
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}
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const auto result = propagator()->updateMetadata(newItem);
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if (!result) {
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done(SyncFileItem::FatalError, tr("Error updating metadata: %1").arg(result.error()));
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return;
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} else if (*result == Vfs::ConvertToPlaceholderResult::Locked) {
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done(SyncFileItem::SoftError, tr("The file %1 is currently in use").arg(newItem._file));
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return;
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}
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} else {
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propagator()->_renamedDirectories.insert(oldFile, _item->_renameTarget);
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if (!PropagateRemoteMove::adjustSelectiveSync(propagator()->_journal, oldFile, _item->_renameTarget)) {
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done(SyncFileItem::FatalError, tr("Failed to rename file"));
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return;
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}
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}
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if (pinState && *pinState != PinState::Inherited
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&& !vfs->setPinState(_item->_renameTarget, *pinState)) {
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done(SyncFileItem::NormalError, tr("Error setting pin state"));
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return;
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}
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propagator()->_journal->commit("localRename");
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done(SyncFileItem::Success);
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}
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}
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