update CHANGELOG.md

Needs detection whether we have them available at some point, especially
since Ubuntu 24.04 blocks them with Apparmor. But for now, don't unshare
anything.

submodules: exile.h: Sync

CHANGELOG.md

@@ -1,4 +1,15 @@
 # looqs: Release notes
+## 2024-07-21 - v0.10
+CHANGES:
+ - Move to Qt6, drop Qt5 support.
+ - Index ToC of PDFs
+ - ToC can be searched with filter: toc:(query). (Basic, more to come).
+ - sqlite: Improvements so rare "database locked" errors don't occur.
+ - sandbox: Disable mechanisms based on namespaces (for now), as we no longer can assume them to be available
+ on some distros such as Ubuntu 24.04. Needs some clean solution.
+ - Minor fixes
+ - Add package for Ubuntu 24.04.
+ - Drop support for tarball with pre-built binaries. It may or may not return in future releases.
 
 ## 2023-05-07 - v0.9
 Highlights: Tag support. Also begin new index mode to only index metadata (currently only path + file size, more to come).

COPYING

@@ -0,0 +1,681 @@
+This file lists looqs license and the license of third-party libraries.
+
+
+Copyright (c) 2018-2024: Albert Schwarzkopf <looqs at quitesimple period org>
+
+looqs is made available under the following license: 
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -28,7 +28,7 @@ There is no need to write the long form of filters. There are also booleans avai
 The screenshots in this section may occasionally be slightly outdated, but they are usually recent enough to get an overall impression of the current state of the GUI.
 
 ## Current status
-Latest version: 2023-05-07, v0.9
+Latest version: 2024-07-21, v0.10
 
 Please keep in mind: looqs is still at an early stage and may exhibit some weirdness and contain bugs.
 
@@ -76,19 +76,8 @@ To build on Ubuntu and Debian, clone the repo and then run:
 ```
 git submodule init
 git submodule update
-sudo apt install build-essential qtbase5-dev libqt5sql5-sqlite libpoppler-qt5-dev libuchardet-dev libquazip5-dev
-qmake
-make
-```
-
-### Void
-```
-# as root
-xbps-install qt5-devel poppler-qt5-devel quazip-qt5-devel uchardet-devel gcc make
-# as user
-git submodule init
-git submodule update
-qmake
+sudo apt install build-essential qt6-base-dev libqt6sql6-sqlite libpoppler-qt6-dev libuchardet-dev libquazip1-qt6-dev
+qmake6
 make
 ```
 
@@ -99,7 +88,7 @@ At this point, looqs is not in any official distro package repo, but I maintain
 
 
 
-### Ubuntu 23.04, 22.10, 22.04
+### Ubuntu 24.04
 Latest release can be installed using apt from the repo.
 ```
 # First, obtain key, assume it's trusted.
@@ -113,29 +102,6 @@ sudo apt-get install looqs
 ### Gentoo (EXPERIMENTAL)
 Available in this overlay: https://github.com/quitesimpleorg/quitesimple-overlay
 
-### Prebuilt tarball (distro-agnostic) (EXPERIMENTAL)
-looqs is also distributed as a tarball containing prebuilt binaries and its library dependencies. The tarball is
-built using the Gentoo Hardened toolchain and the Qt version is smaller than what distributions usually
-include. It does not include libraries that should mess with fontrendering or the graphics stack. The binaries should run on any recent Linux distribution (requires glibc 2.34 or newer at least) and expects
-dependencies such as libGL to be provided by your distribution already (should be the case).
-
-It's considered experimental for two reasons. Firstly, looqs has no updater (yet). You will have to manually check for updates. Secondly, I can't guarantee that I'll be quick with updates of the tarball specifically if the library versions become outdated between looqs updates.
-
-You are therefore encouraged to use distro-native packages or to build it yourself if possible.
-
-The tarball can be obtained here: https://repo.quitesimple.org/tarball/looqs
-
-Quick start:
-
-```
-# Verify sig, see the end of this document: gpg --verify looqs-v0.4.tar.xz.sig
-tar xf looqs-v0.4.tar.xz # Replace with the actual version you have obtained
-cd looqs-v0.4
-./looqs-gui # or ./looqs for the CLI
-```
-
-An AppImage may accompany the tarball in the future.
-
 
 ### Other distros
 I appreciate help for others distros. If you create a package, let me know!

cli/cli.pro

@@ -37,15 +37,16 @@ win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../shared/release/ -ls
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../shared/debug/ -lshared
 else:unix: LIBS += -L$$OUT_PWD/../shared/ -lshared
 
-LIBS += -luchardet -lpoppler-qt5 -lquazip5
+LIBS += -luchardet -lpoppler-qt6
 
-packagesExist(quazip1-qt5) {
-	PKGCONFIG += quazip1-qt5
+packagesExist(quazip1-qt6) {
+	PKGCONFIG += quazip1-qt6
 	CONFIG += link_pkgconfig
-	LIBS -= -lquazip5
 }
 
 INCLUDEPATH += $$PWD/../shared
+INCLUDEPATH += /usr/include/poppler/qt6/
+
 DEPENDPATH += $$PWD/../shared
 
 win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../shared/release/libshared.a

gui/aboutdialog.cpp

@@ -19,7 +19,6 @@ AboutDialog::AboutDialog(QWidget *parent) : QDialog(parent)
 	closeButton->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
 	connect(closeButton, &QPushButton::clicked, this, &QDialog::close);
 
-	closeLayout->setMargin(10);
 	closeLayout->addStretch(10);
 	closeLayout->addWidget(closeButton);
 
@@ -32,7 +31,7 @@ AboutDialog::AboutDialog(QWidget *parent) : QDialog(parent)
 	QLabel *aboutLooqs = new QLabel(this);
 	QString html = "<h2>looqs</h2>";
 	html += "Full-text search with previews for your files<br><br>";
-	html += "Copyright (c) 2018-2022: Albert Schwarzkopf<br><br>";
+	html += "Copyright (c) 2018-2024: Albert Schwarzkopf<br><br>";
 	html += QString("Version: %1<br><br>").arg(Common::versionText());
 	html += "Contact: looqs at quitesimple dot org<br><br>";
 	html += "Website: <a href=\"https://quitesimple.org\">https://quitesimple.org</a><br><br>";

gui/gui.pro

@@ -71,8 +71,8 @@ HEADERS += \
 FORMS += \
         mainwindow.ui
 
-INCLUDEPATH += /usr/include/poppler/qt5/
-INCLUDEPATH += /usr/include/quazip5
+INCLUDEPATH += /usr/include/poppler/qt6/
+INCLUDEPATH += /usr/include/quazip6
 
 QT += widgets sql
 
@@ -80,12 +80,12 @@ win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../shared/release/ -ls
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../shared/debug/ -lshared
 else:unix: LIBS += -L$$OUT_PWD/../shared/ -lshared
 
-LIBS += -luchardet -lpoppler-qt5 -lquazip5
+LIBS += -luchardet -lpoppler-qt6 -lquazip6
 
-packagesExist(quazip1-qt5) {
-	PKGCONFIG += quazip1-qt5
+packagesExist(quazip1-qt6) {
+	PKGCONFIG += quazip1-qt6
 	CONFIG += link_pkgconfig
-	LIBS -= -lquazip5
+	LIBS -= -lquazip6
 }
 
 INCLUDEPATH += $$PWD/../shared

gui/ipcpreviewclient.cpp

@@ -68,22 +68,25 @@ void IPCPreviewClient::start(RenderConfig config, const QVector<RenderTarget> &t
 	if(socket->isOpen() && socket->isWritable())
 	{
 		QDataStream stream(socket);
+		stream.startTransaction();
 		stream << GeneratePreviews;
 		stream << config;
 		stream << targets;
+		stream.commitTransaction();
 		socket->flush();
 
-		int numTarget = 0;
+		qsizetype numTarget = 0;
 		if(socket->isOpen() && socket->isReadable() && socket->state() == QLocalSocket::ConnectedState)
 		{
 			do
 			{
-				socket->waitForReadyRead(100);
+				socket->waitForReadyRead(5000);
 				stream.startTransaction();
 				stream >> numTarget;
 			} while(!stream.commitTransaction() && socket->state() == QLocalSocket::ConnectedState);
 			if(numTarget != targets.count())
 			{
+				qDebug() << "Target count mismatch";
 				emit error("IPC Error: Server reports less targets than it should");
 				return;
 			}

gui/ipcserver.cpp

@@ -51,7 +51,9 @@ void IpcServer::spawnerNewConnection()
 			} while(!stream.commitTransaction() && socket->state() == QLocalSocket::ConnectedState);
 			if(socket->state() == QLocalSocket::ConnectedState)
 			{
+				stream.startTransaction();
 				stream << targets.count();
+				stream.commitTransaction();
 				socket->flush();
 				IPCPreviewWorker *previewWorker = new IPCPreviewWorker(socket);
 				connect(previewWorker, &IPCPreviewWorker::finished, this, [previewWorker] { delete previewWorker; });
@@ -59,6 +61,7 @@ void IpcServer::spawnerNewConnection()
 			}
 			else
 			{
+				qDebug() << "Deleting socket...";
 				delete socket;
 			}
 		}

gui/main.cpp

@@ -25,11 +25,10 @@ void enableIpcSandbox()
 		qCritical() << "Failed to init policy for sandbox";
 		exit(EXIT_FAILURE);
 	}
-	policy->namespace_options = EXILE_UNSHARE_USER | EXILE_UNSHARE_MOUNT | EXILE_UNSHARE_NETWORK;
+	policy->namespace_options = 0;
 	policy->no_new_privs = 1;
-	policy->drop_caps = 1;
+	policy->drop_caps = 0;
 	policy->vow_promises = exile_vows_from_str("thread cpath rpath wpath unix stdio proc error");
-	policy->mount_path_policies_to_chroot = 1;
 
 	QString ipcSocketPath = Common::ipcSocketPath();
 	QFileInfo info{ipcSocketPath};

gui/mainwindow.cpp

@@ -1,4 +1,4 @@
-#include <poppler-qt5.h>
+#include <poppler-qt6.h>
 #include <QLabel>
 #include <QtDebug>
 #include <QFileInfo>
@@ -15,10 +15,8 @@
 #include <QFileDialog>
 #include <QScreen>
 #include <QProgressDialog>
-#include <QDesktopWidget>
 #include <QWidgetAction>
 #include <QInputDialog>
-
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "clicklabel.h"
@@ -305,6 +303,7 @@ void MainWindow::startIndexing()
 	ui->txtPathScanAdd->setEnabled(false);
 	ui->btnAddPath->setEnabled(false);
 	ui->btnChoosePath->setEnabled(false);
+	ui->btnDeletePath->setEnabled(false);
 	ui->txtSearch->setEnabled(false);
 	ui->previewProcessBar->setValue(0);
 	ui->previewProcessBar->setVisible(true);
@@ -320,7 +319,9 @@ void MainWindow::startIndexing()
 	}
 	this->indexer->setTargetPaths(paths);
 	QString ignorePatterns = ui->txtIgnorePatterns->text();
-	this->indexer->setIgnorePattern(ignorePatterns.split(";"));
+	QStringList patterns = ignorePatterns.split(";");
+	patterns.removeAll(QString{});
+	this->indexer->setIgnorePattern(patterns);
 
 	FileSaverOptions options;
 	options.fillExistingContentless =
@@ -354,6 +355,7 @@ void MainWindow::finishIndexing()
 	ui->txtPathScanAdd->setEnabled(true);
 	ui->btnAddPath->setEnabled(true);
 	ui->btnChoosePath->setEnabled(true);
+	ui->btnDeletePath->setEnabled(true);
 	ui->txtSearch->setEnabled(true);
 	if(result.erroredPaths > 0)
 	{
@@ -632,6 +634,8 @@ void MainWindow::saveSettings()
 								  "Failed to remove old database. Settings not saved.");
 			return;
 		}
+		QFile::remove(Common::databasePath() + "-shm");
+		QFile::remove(Common::databasePath() + "-wal");
 	}
 
 	QSettings settings;
@@ -673,7 +677,7 @@ void MainWindow::previewReceived()
 		headerLabel->setText(QString("Path: ") + preview->getDocumentPath());
 
 		ClickLabel *label = dynamic_cast<ClickLabel *>(preview->createPreviewWidget());
-		label->setMaximumWidth(QApplication::desktop()->availableGeometry().width() - 200);
+		label->setMaximumWidth(QApplication::primaryScreen()->availableGeometry().width() - 200);
 
 		QVBoxLayout *previewLayout = new QVBoxLayout();
 
@@ -702,7 +706,7 @@ void MainWindow::previewReceived()
 
 		previewLayout->addWidget(headerLabel);
 
-		previewLayout->setMargin(0);
+		previewLayout->setContentsMargins(0, 0, 0, 0);
 		previewLayout->insertStretch(0, 1);
 		previewLayout->insertStretch(-1, 1);
 		previewLayout->setAlignment(Qt::AlignCenter);

gui/previewcoordinator.cpp

@@ -10,6 +10,7 @@ PreviewCoordinator::PreviewCoordinator()
 	connect(&ipcPreviewClient, &IPCPreviewClient::finished, this, [&] { emit completedGeneration(); });
 	connect(this, &PreviewCoordinator::ipcStartGeneration, &ipcPreviewClient, &IPCPreviewClient::startGeneration,
 			Qt::QueuedConnection);
+	connect(&ipcPreviewClient, &IPCPreviewClient::error, this, [&](QString err) { emit error(err); });
 
 	this->ipcClientThread.start();
 }

gui/previewgeneratorodt.cpp

@@ -24,7 +24,7 @@ QSharedPointer<PreviewResult> PreviewGeneratorOdt::generate(RenderConfig config,
 		throw LooqsGeneralException("Error while reading content.xml of " + documentPath);
 	}
 	TagStripperProcessor tsp;
-	QString content = tsp.process(entireContent).constFirst().content;
+	QString content = tsp.process(entireContent).pages.constFirst().content;
 
 	PreviewGeneratorPlainText plainTextGenerator;
 	result->setText(plainTextGenerator.generatePreviewText(content, config, info.fileName()));

gui/previewgeneratorpdf.cpp

@@ -13,20 +13,21 @@ Poppler::Document *PreviewGeneratorPdf::document(QString path)
 		return documentcache.value(path);
 	}
 	locker.unlock();
-	Poppler::Document *result = Poppler::Document::load(path);
-	if(result == nullptr)
+	auto result = Poppler::Document::load(path);
+	if(!result)
 	{
+		qDebug() << "Failed to load document: " << path;
 		// TODO: some kind of user feedback would be nice
 		return nullptr;
 	}
 	result->setRenderHint(Poppler::Document::TextAntialiasing);
 	result->setRenderHint(Poppler::Document::TextHinting);
 	result->setRenderHint(Poppler::Document::TextSlightHinting);
-
+	auto ptr = result.release();
 	locker.relock();
-	documentcache.insert(path, result);
+	documentcache.insert(path, ptr);
 	locker.unlock();
-	return result;
+	return ptr;
 }
 
 QSharedPointer<PreviewResult> PreviewGeneratorPdf::generate(RenderConfig config, QString documentPath,
@@ -36,10 +37,12 @@ QSharedPointer<PreviewResult> PreviewGeneratorPdf::generate(RenderConfig config,
 	Poppler::Document *doc = document(documentPath);
 	if(doc == nullptr)
 	{
+		qDebug() << "Failed to obtain document for: " << documentPath;
 		return QSharedPointer<PreviewResult>(result);
 	}
 	if(doc->isLocked())
 	{
+		qDebug() << "Failed to open document as its locked: " << documentPath;
 		return QSharedPointer<PreviewResult>(result);
 	}
 	int p = (int)page - 1;
@@ -47,7 +50,12 @@ QSharedPointer<PreviewResult> PreviewGeneratorPdf::generate(RenderConfig config,
 	{
 		p = 0;
 	}
-	Poppler::Page *pdfPage = doc->page(p);
+	auto pdfPage = doc->page(p);
+	if(!pdfPage)
+	{
+		qDebug() << "Failed to open page " << p << " for document" << documentPath;
+		return QSharedPointer<PreviewResult>(result);
+	}
 	QImage img = pdfPage->renderToImage(config.scaleX, config.scaleY);
 	for(QString &word : config.wordsToHighlight)
 	{

gui/previewgeneratorpdf.h

@@ -1,6 +1,6 @@
 #ifndef PREVIEWGENERATORPDF_H
 #define PREVIEWGENERATORPDF_H
-#include <poppler-qt5.h>
+#include <poppler-qt6.h>
 #include "previewgenerator.h"
 #include "previewresultpdf.h"
 

shared/databasefactory.cpp

@@ -1,4 +1,5 @@
 #include <QThread>
+#include <QSqlQuery>
 #include "databasefactory.h"
 #include "logger.h"
 #include "looqsgeneralexception.h"
@@ -31,11 +32,23 @@ QSqlDatabase DatabaseFactory::forCurrentThread()
 	QSqlDatabase db =
 		QSqlDatabase::addDatabase("QSQLITE", "LOOQS" + QString::number((quint64)QThread::currentThread(), 16));
 	db.setDatabaseName(this->connectionString);
+	db.setConnectOptions("QSQLITE_BUSY_TIMEOUT=30000");
 	if(!db.open())
 	{
 		Logger::error() << "Failed to open the database: " << this->connectionString << Qt::endl;
 		throw LooqsGeneralException("Failed to create open new connection");
 	}
+	QSqlQuery q(db);
+	if(!q.exec("PRAGMA journal_mode=WAL;"))
+	{
+		Logger::error() << "Failed to set WAL mode: " << this->connectionString << Qt::endl;
+		throw LooqsGeneralException("Failed to set WAL mode on sqlite database");
+	}
+	if(!q.exec("PRAGMA wal_autocheckpoint=250;"))
+	{
+		Logger::error() << "Failed to set WAL autocheckpoint: " << this->connectionString << Qt::endl;
+		throw LooqsGeneralException("Failed to set WAL autocheckpoint on sqlite database");
+	}
 	dbStore.setLocalData(db);
 	return db;
 }

shared/defaulttextprocessor.cpp

@@ -1,6 +1,6 @@
 #include <QFile>
 #include <QDataStream>
-#include <QTextCodec>
+#include <QStringDecoder>
 #include <QDebug>
 #include "defaulttextprocessor.h"
 
@@ -13,10 +13,10 @@ QString DefaultTextProcessor::processText(const QByteArray &data) const
 	QString encoding = encodingDetector.detectEncoding(data);
 	if(!encoding.isEmpty())
 	{
-		QTextCodec *codec = QTextCodec::codecForName(encoding.toUtf8());
-		if(codec != nullptr)
+		QStringDecoder decoder = QStringDecoder(encoding.toStdString().c_str());
+		if(decoder.isValid())
 		{
-			return codec->toUnicode(data);
+			return decoder(data);
 		}
 		qWarning() << "No codec found for " << encoding;
 		return QString(data);
@@ -24,7 +24,9 @@ QString DefaultTextProcessor::processText(const QByteArray &data) const
 	return {};
 }
 
-QVector<PageData> DefaultTextProcessor::process(const QByteArray &data) const
+DocumentProcessResult DefaultTextProcessor::process(const QByteArray &data) const
 {
-	return {{0, processText(data)}};
+	DocumentProcessResult result;
+	result.pages.append({0, processText(data)});
+	return result;
 }

shared/defaulttextprocessor.h

@@ -11,7 +11,7 @@ class DefaultTextProcessor : public Processor
   public:
 	DefaultTextProcessor();
 	QString processText(const QByteArray &data) const;
-	QVector<PageData> process(const QByteArray &data) const override;
+	DocumentProcessResult process(const QByteArray &data) const override;
 };
 
 #endif // DEFAULTTEXTPROCESSOR_H

shared/documentoutlineentry.cpp

@@ -0,0 +1,31 @@
+#include "documentoutlineentry.h"
+
+DocumentOutlineEntry::DocumentOutlineEntry()
+{
+}
+
+QDataStream &operator<<(QDataStream &out, const DocumentOutlineEntry &pd)
+{
+	out << pd.text << pd.type << pd.destinationPage;
+	out << pd.children.size();
+	for(const DocumentOutlineEntry &entry : pd.children)
+	{
+		out << entry;
+	}
+	return out;
+}
+
+QDataStream &operator>>(QDataStream &in, DocumentOutlineEntry &pd)
+{
+	in >> pd.text >> pd.type >> pd.destinationPage;
+
+	qsizetype numChildren;
+	in >> numChildren;
+	for(int i = 0; i < numChildren; i++)
+	{
+		DocumentOutlineEntry entry;
+		in >> entry;
+		pd.children.append(entry);
+	}
+	return in;
+}

shared/documentoutlineentry.h

@@ -0,0 +1,30 @@
+#ifndef DOCUMENTOUTLINEENTRY_H
+#define DOCUMENTOUTLINEENTRY_H
+#include <QMetaType>
+#include <QDataStream>
+#include <QString>
+#include <QVector>
+
+enum OutlineDestinationType
+{
+	OUTLINE_DESTINATION_TYPE_NONE,
+	OUTLINE_DESTINATION_TYPE_PAGE
+	/* In the future, links, or #anchors are possible */
+};
+
+class DocumentOutlineEntry
+{
+  public:
+	DocumentOutlineEntry();
+	QVector<DocumentOutlineEntry> children;
+	OutlineDestinationType type;
+	QString text;
+	unsigned int destinationPage;
+};
+
+Q_DECLARE_METATYPE(DocumentOutlineEntry);
+
+QDataStream &operator<<(QDataStream &out, const DocumentOutlineEntry &pd);
+QDataStream &operator>>(QDataStream &in, DocumentOutlineEntry &pd);
+
+#endif // DOCUMENTOUTLINEENTRY_H

shared/documentprocessresult.cpp

@@ -0,0 +1,39 @@
+#include "documentprocessresult.h"
+#include <QDebug>
+QDataStream &operator<<(QDataStream &out, const DocumentProcessResult &pd)
+{
+	out << pd.pages.size();
+	out << pd.outlines.size();
+	for(const PageData &pd : pd.pages)
+	{
+		out << pd;
+	}
+	for(const DocumentOutlineEntry &outline : pd.outlines)
+	{
+		out << outline;
+	}
+	return out;
+}
+
+QDataStream &operator>>(QDataStream &in, DocumentProcessResult &pd)
+{
+	qsizetype numPages, numOutlines;
+	in >> numPages;
+	in >> numOutlines;
+
+	for(int i = 0; i < numPages; i++)
+	{
+		PageData data;
+		in >> data;
+		pd.pages.append(data);
+	}
+
+	for(int i = 0; i < numOutlines; i++)
+	{
+		DocumentOutlineEntry outline;
+		in >> outline;
+		pd.outlines.append(outline);
+	}
+
+	return in;
+}

shared/documentprocessresult.h

@@ -0,0 +1,17 @@
+#ifndef DOCUMENTPROCESSRESULT_H
+#define DOCUMENTPROCESSRESULT_H
+#include <pagedata.h>
+#include <documentoutlineentry.h>
+
+class DocumentProcessResult
+{
+  public:
+	QVector<PageData> pages;
+	QVector<DocumentOutlineEntry> outlines;
+};
+Q_DECLARE_METATYPE(DocumentProcessResult);
+
+QDataStream &operator<<(QDataStream &out, const DocumentProcessResult &pd);
+QDataStream &operator>>(QDataStream &in, DocumentProcessResult &pd);
+
+#endif // DOCUMENTPROCESSRESULT_H

shared/filesaver.cpp

@@ -110,7 +110,7 @@ int FileSaver::processFiles(const QVector<QString> paths, std::function<SaveFile
 
 SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
 {
-	QVector<PageData> pageData;
+	DocumentProcessResult processResult;
 	QString canonicalPath = fileInfo.canonicalFilePath();
 
 	int processorReturnCode = -1;
@@ -169,11 +169,10 @@ SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
 			 * finishes.
 			 */
 			QDataStream in(process.readAllStandardOutput());
-			while(!in.atEnd())
+
+			if(!in.atEnd())
 			{
-				PageData pd;
-				in >> pd;
-				pageData.append(pd);
+				in >> processResult;
 			}
 			processorReturnCode = process.exitCode();
 			if(processorReturnCode != OK && processorReturnCode != OK_WASEMPTY)
@@ -185,7 +184,7 @@ SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
 			}
 		}
 	}
-	SaveFileResult result = this->dbService->saveFile(fileInfo, pageData, this->fileSaverOptions.metadataOnly);
+	SaveFileResult result = this->dbService->saveFile(fileInfo, processResult, this->fileSaverOptions.metadataOnly);
 	if(result == OK && processorReturnCode == OK_WASEMPTY)
 	{
 		return OK_WASEMPTY;

shared/indexer.cpp

@@ -30,7 +30,7 @@ void Indexer::beginIndexing()
 			pattern += "/";
 		}
 		pattern += "*";
-		ignoreList.append(excludedPath);
+		ignoreList.append(pattern);
 	}
 	ignoreList.append(this->ignorePattern);
 	wildcardMatcher.setPatterns(ignoreList);
@@ -163,6 +163,7 @@ void Indexer::processFinishedWorker()
 	--this->runningWorkers;
 	if(!isRunning())
 	{
+		this->db->runWalCheckpoint();
 		emit finished();
 	}
 }

shared/indexsyncer.cpp

@@ -110,7 +110,7 @@ void IndexSyncer::sync()
 			if(!this->fileSaverOptions.keepGoing)
 			{
 				QString errorMsg = QString("Failed to update all files selected for updating in this batch. Updated") +
-								   updatedFilesCount + "out of" + shouldHaveUpdatedCount + "selected for updating";
+								   QString::number(updatedFilesCount) + "out of" + QString::number(shouldHaveUpdatedCount) + "selected for updating";
 				emit error(errorMsg);
 				emit finished(totalUpdatesFilesCount, totalDeletedFilesCount, totalErroredFilesCount);
 			}

shared/looqsquery.cpp

@@ -29,6 +29,11 @@ bool LooqsQuery::hasContentSearch() const
 	return (this->getTokensMask() & FILTER_CONTENT) == FILTER_CONTENT;
 }
 
+bool LooqsQuery::hasOutlineSearch() const
+{
+	return (this->getTokensMask() & FILTER_OUTLINE_CONTAINS) == FILTER_OUTLINE_CONTAINS;
+}
+
 bool LooqsQuery::hasPathSearch() const
 {
 	return (this->getTokensMask() & FILTER_PATH) == FILTER_PATH;
@@ -289,6 +294,10 @@ LooqsQuery LooqsQuery::build(QString expression, TokenType loneWordsTokenType, b
 			{
 				tokenType = FILTER_TAG_ASSIGNED;
 			}
+			else if(filtername == "toc" || filtername == "outline")
+			{
+				tokenType = FILTER_OUTLINE_CONTAINS;
+			}
 			// TODO: given this is not really a "filter", this feels slightly misplaced here
 			else if(filtername == "sort")
 			{

shared/looqsquery.h

@@ -68,6 +68,7 @@ class LooqsQuery
 		this->limit = limit;
 	}
 	bool hasContentSearch() const;
+	bool hasOutlineSearch() const;
 	bool hasPathSearch() const;
 
 	void addSortCondition(SortCondition sc);

shared/migrations/6.sql

@@ -0,0 +1,2 @@
+CREATE TABLE outline(id INTEGER PRIMARY KEY, fileid INTEGER REFERENCES file (id) ON DELETE CASCADE, text varchar(1024), page integer);
+CREATE INDEX outline_fileid ON outline (fileid);

shared/migrations/migrations.qrc

@@ -5,5 +5,6 @@
         <file>3.sql</file>
         <file>4.sql</file>
         <file>5.sql</file>
+        <file>6.sql</file>
     </qresource>
 </RCC>

shared/nothingprocessor.h

@@ -10,7 +10,7 @@ class NothingProcessor : public Processor
 	NothingProcessor();
 
   public:
-	QVector<PageData> process(const QByteArray & /*data*/) const override
+	DocumentProcessResult process(const QByteArray & /*data*/) const override
 	{
 		return {};
 	}

shared/odtprocessor.cpp

@@ -3,12 +3,12 @@
 #include "odtprocessor.h"
 #include "tagstripperprocessor.h"
 
-QVector<PageData> OdtProcessor::process(const QByteArray & /*data*/) const
+DocumentProcessResult OdtProcessor::process(const QByteArray & /*data*/) const
 {
 	throw LooqsGeneralException("Not implemented yet");
 }
 
-QVector<PageData> OdtProcessor::process(QString path) const
+DocumentProcessResult OdtProcessor::process(QString path) const
 {
 	QuaZipFile zipFile(path);
 	zipFile.setFileName("content.xml");

shared/odtprocessor.h

@@ -8,9 +8,9 @@ class OdtProcessor : public Processor
 	{
 		this->PREFERED_DATA_SOURCE = FILEPATH;
 	}
-	QVector<PageData> process(const QByteArray &data) const override;
+	DocumentProcessResult process(const QByteArray &data) const override;
 
-	QVector<PageData> process(QString path) const override;
+	DocumentProcessResult process(QString path) const override;
 };
 
 #endif // ODTPROCESSOR_H

shared/pdfprocessor.cpp

@@ -1,15 +1,35 @@
 #include <QScopedPointer>
-#include <poppler-qt5.h>
 #include "pdfprocessor.h"
 PdfProcessor::PdfProcessor()
 {
 }
 
-QVector<PageData> PdfProcessor::process(const QByteArray &data) const
+QVector<DocumentOutlineEntry> PdfProcessor::createOutline(const QVector<Poppler::OutlineItem> &outlineItems) const
 {
-	QVector<PageData> result;
-	QScopedPointer<Poppler::Document> doc(Poppler::Document::loadFromData(data));
-	if(doc.isNull())
+	QVector<DocumentOutlineEntry> result;
+	for(const Poppler::OutlineItem &outlineItem : outlineItems)
+	{
+		DocumentOutlineEntry documentOutlineEntry;
+		documentOutlineEntry.text = outlineItem.name();
+		documentOutlineEntry.type = OUTLINE_DESTINATION_TYPE_PAGE;
+		if(!outlineItem.destination().isNull())
+		{
+			documentOutlineEntry.destinationPage = outlineItem.destination()->pageNumber();
+		}
+		if(outlineItem.hasChildren())
+		{
+			documentOutlineEntry.children = createOutline(outlineItem.children());
+		}
+		result.append(documentOutlineEntry);
+	}
+	return result;
+}
+
+DocumentProcessResult PdfProcessor::process(const QByteArray &data) const
+{
+	DocumentProcessResult result;
+	auto doc(Poppler::Document::loadFromData(data));
+	if(!doc)
 	{
 		throw LooqsGeneralException("Failed to process pdf data");
 	}
@@ -26,12 +46,13 @@ QVector<PageData> PdfProcessor::process(const QByteArray &data) const
 	for(auto i = 0; i < pagecount; i++)
 	{
 		QString text = doc->page(i)->text(entirePage);
-		result.append({static_cast<unsigned int>(i + 1), text});
+		result.pages.append({static_cast<unsigned int>(i + 1), text});
 		/*TODO: hack, so we can fts search several words over the whole document, not just pages.
 		 * this of course uses more space and should be solved differently.
 		 */
 		entire += text;
 	}
-	result.append({0, entire});
+	result.pages.append({0, entire});
+	result.outlines = createOutline(doc->outline());
 	return result;
 }

shared/pdfprocessor.h

@@ -1,5 +1,6 @@
 #ifndef PDFPROCESSOR_H
 #define PDFPROCESSOR_H
+#include <poppler-qt6.h>
 #include "processor.h"
 class PdfProcessor : public Processor
 {
@@ -7,7 +8,8 @@ class PdfProcessor : public Processor
 	PdfProcessor();
 
   public:
-	QVector<PageData> process(const QByteArray &data) const override;
+	QVector<DocumentOutlineEntry> createOutline(const QVector<Poppler::OutlineItem> &outlineItems) const;
+	DocumentProcessResult process(const QByteArray &data) const override;
 };
 
 #endif // PDFPROCESSOR_H

shared/processor.h

@@ -2,8 +2,8 @@
 #define PROCESSOR_H
 #include <QVector>
 #include <QFile>
-#include "pagedata.h"
 #include "utils.h"
+#include "documentprocessresult.h"
 enum DataSource
 {
 	FILEPATH,
@@ -18,8 +18,8 @@ class Processor
 	 * a single file */
 	DataSource PREFERED_DATA_SOURCE = ARRAY;
 	Processor();
-	virtual QVector<PageData> process(const QByteArray &data) const = 0;
-	virtual QVector<PageData> process(QString path) const
+	virtual DocumentProcessResult process(const QByteArray &data) const = 0;
+	virtual DocumentProcessResult process(QString path) const
 	{
 		return process(Utils::readFile(path));
 	}

shared/sandboxedprocessor.cpp

@@ -36,20 +36,18 @@ void SandboxedProcessor::enableSandbox(QString readablePath)
 	if(policy == NULL)
 	{
 		qCritical() << "Could not init exile" << Qt::endl;
-		exit(EXIT_FAILURE);
+		exit(PROCESSFAIL);
 	}
-	policy->namespace_options = EXILE_UNSHARE_NETWORK | EXILE_UNSHARE_USER;
+	policy->namespace_options = 0;
 
 	std::string readablePathLocation;
 	if(!readablePath.isEmpty())
 	{
-		policy->namespace_options |= EXILE_UNSHARE_MOUNT;
-		policy->mount_path_policies_to_chroot = 1;
 		readablePathLocation = readablePath.toStdString();
 		if(exile_append_path_policies(policy, EXILE_FS_ALLOW_ALL_READ, readablePathLocation.c_str()) != 0)
 		{
 			qCritical() << "Failed to add path policies";
-			exit(EXIT_FAILURE);
+			exit(PROCESSFAIL);
 		}
 	}
 	else
@@ -60,23 +58,17 @@ void SandboxedProcessor::enableSandbox(QString readablePath)
 	if(ret != 0)
 	{
 		qCritical() << "Failed to establish sandbox: " << ret;
-		exit(EXIT_FAILURE);
+		exit(PROCESSFAIL);
 	}
 	exile_free_policy(policy);
 }
 
-void SandboxedProcessor::printResults(const QVector<PageData> &pageData)
+void SandboxedProcessor::printResults(const DocumentProcessResult &result)
 {
 	QFile fsstdout;
 	fsstdout.open(stdout, QIODevice::WriteOnly);
 	QDataStream stream(&fsstdout);
-
-	for(const PageData &data : pageData)
-	{
-		stream << data;
-		// fsstdout.flush();
-	}
-
+	stream << result;
 	fsstdout.close();
 }
 
@@ -102,7 +94,7 @@ SaveFileResult SandboxedProcessor::process()
 		return OK;
 	}
 
-	QVector<PageData> pageData;
+	DocumentProcessResult processResult;
 	QString absPath = fileInfo.absoluteFilePath();
 
 	try
@@ -111,13 +103,13 @@ SaveFileResult SandboxedProcessor::process()
 		{
 			/* Read access to FS needed... doh..*/
 			enableSandbox(absPath);
-			pageData = processor->process(absPath);
+			processResult = processor->process(absPath);
 		}
 		else
 		{
 			QByteArray data = Utils::readFile(absPath);
 			enableSandbox();
-			pageData = processor->process(data);
+			processResult = processor->process(data);
 		}
 	}
 	catch(LooqsGeneralException &e)
@@ -126,6 +118,6 @@ SaveFileResult SandboxedProcessor::process()
 		return PROCESSFAIL;
 	}
 
-	printResults(pageData);
-	return pageData.isEmpty() ? OK_WASEMPTY : OK;
+	printResults(processResult);
+	return processResult.pages.isEmpty() ? OK_WASEMPTY : OK;
 }

shared/sandboxedprocessor.h

@@ -2,7 +2,7 @@
 #define SANDBOXEDPROCESSOR_H
 #include <QString>
 #include <QMimeDatabase>
-#include "pagedata.h"
+#include "documentprocessresult.h"
 #include "savefileresult.h"
 
 class SandboxedProcessor
@@ -12,7 +12,7 @@ class SandboxedProcessor
 	QMimeDatabase mimeDatabase;
 
 	void enableSandbox(QString readablePath = "");
-	void printResults(const QVector<PageData> &pageData);
+	void printResults(const DocumentProcessResult &pageData);
 
   public:
 	SandboxedProcessor(QString filepath)

shared/shared.pro

@@ -14,11 +14,11 @@ CONFIG += staticlib
 CONFIG += c++17
 
 INCLUDEPATH += $$PWD/../sandbox/exile.h/
-INCLUDEPATH += /usr/include/poppler/qt5/ /usr/include/quazip5
+INCLUDEPATH += /usr/include/poppler/qt6/ /usr/include/quazip5
 
 # Dirty, we only need the includes here but well this magic works, so...
-packagesExist(quazip1-qt5) {
-       PKGCONFIG += quazip1-qt5
+packagesExist(quazip1-qt6) {
+       PKGCONFIG += quazip1-qt6
        CONFIG += link_pkgconfig
 }
 
@@ -42,6 +42,8 @@ SOURCES += sqlitesearch.cpp \
     dbmigrator.cpp \
     defaulttextprocessor.cpp \
     dirscanworker.cpp \
+    documentoutlineentry.cpp \
+    documentprocessresult.cpp \
     encodingdetector.cpp \
     filesaver.cpp \
     filescanworker.cpp \
@@ -72,6 +74,8 @@ HEADERS += sqlitesearch.h \
     dbmigrator.h \
     defaulttextprocessor.h \
     dirscanworker.h \
+    documentoutlineentry.h \
+    documentprocessresult.h \
     encodingdetector.h \
     filedata.h \
     filesaver.h \

shared/sqlitedbservice.cpp

@@ -2,6 +2,7 @@
 #include <QFileInfo>
 #include <QDateTime>
 #include <QSqlError>
+#include <QRegularExpression>
 #include "looqsgeneralexception.h"
 #include "sqlitedbservice.h"
 #include "filedata.h"
@@ -81,16 +82,14 @@ unsigned int SqliteDbService::getFiles(QVector<FileData> &results, QString wildC
 		throw LooqsGeneralException("Error while trying to retrieve files from database: " + query.lastError().text());
 	}
 
-	// TODO: port this to QRegularExpression once >5.12 gets more widespread because of this bug
-	// https://bugreports.qt.io/browse/QTBUG-72539?focusedCommentId=439053&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel
 	bool usePattern = !wildCardPattern.isEmpty();
-	QRegExp regexPattern(wildCardPattern);
-	regexPattern.setPatternSyntax(QRegExp::PatternSyntax::WildcardUnix);
+	QString regex = QRegularExpression::wildcardToRegularExpression(wildCardPattern, QRegularExpression::UnanchoredWildcardConversion);
+	QRegularExpression regexPattern(regex);
 
 	while(query.next())
 	{
 		QString absPath = query.value(0).toString();
-		if(!usePattern || regexPattern.exactMatch(absPath))
+		if(!usePattern || regexPattern.match(absPath).hasMatch())
 		{
 			FileData current;
 			current.absPath = absPath;
@@ -166,7 +165,7 @@ QVector<QString> SqliteDbService::getPathsForTag(QString tag)
 bool SqliteDbService::setTags(QString path, const QSet<QString> &tags)
 {
 	QSqlDatabase db = dbFactory->forCurrentThread();
-	if(!db.transaction())
+	if(!this->beginTransaction(db))
 	{
 		Logger::error() << "Failed to open transaction for " << path << " : " << db.lastError() << Qt::endl;
 		return false;
@@ -182,6 +181,8 @@ bool SqliteDbService::setTags(QString path, const QSet<QString> &tags)
 		return false;
 	}
 
+	deletionQuery.finish();
+
 	for(const QString &tag : tags)
 	{
 		QSqlQuery tagQuery = QSqlQuery(db);
@@ -193,6 +194,7 @@ bool SqliteDbService::setTags(QString path, const QSet<QString> &tags)
 			Logger::error() << "Failed to insert tag " << tagQuery.lastError() << Qt::endl;
 			return false;
 		}
+		tagQuery.finish();
 		QSqlQuery fileTagQuery(db);
 		fileTagQuery.prepare(
 			"INSERT INTO filetag(fileid, tagid) VALUES((SELECT id FROM file WHERE path = ?), (SELECT id "
@@ -205,8 +207,9 @@ bool SqliteDbService::setTags(QString path, const QSet<QString> &tags)
 			Logger::error() << "Failed to assign tag to file" << Qt::endl;
 			return false;
 		}
+		fileTagQuery.finish();
 	}
-	if(!db.commit())
+	if(!this->commitTransaction(db))
 	{
 		db.rollback();
 		Logger::error() << "Failed to commit transaction when saving tags" << Qt::endl;
@@ -240,6 +243,7 @@ bool SqliteDbService::insertToFTS(bool useTrigrams, QSqlDatabase &db, int fileid
 			Logger::error() << "Failed fts insertion " << ftsQuery.lastError() << Qt::endl;
 			return false;
 		}
+		ftsQuery.finish();
 		QSqlQuery contentQuery(db);
 		contentQuery.prepare(contentInsertStatement);
 		contentQuery.addBindValue(fileid);
@@ -249,10 +253,47 @@ bool SqliteDbService::insertToFTS(bool useTrigrams, QSqlDatabase &db, int fileid
 			Logger::error() << "Failed content insertion " << contentQuery.lastError() << Qt::endl;
 			return false;
 		}
+		contentQuery.finish();
 	}
 	return true;
 }
 
+bool SqliteDbService::insertOutline(QSqlDatabase &db, int fileid, const QVector<DocumentOutlineEntry> &outlines)
+{
+	QSqlQuery outlineQuery(db);
+	outlineQuery.prepare("INSERT INTO outline(fileid, text, page) VALUES(?,?,?)");
+	outlineQuery.addBindValue(fileid);
+	for(const DocumentOutlineEntry &outline : outlines)
+	{
+		QString text = outline.text.trimmed();
+		if(text.length() > 0)
+		{
+			text = text.toLower();
+
+			outlineQuery.bindValue(1, text);
+			outlineQuery.bindValue(2, outline.destinationPage);
+			if(!outlineQuery.exec())
+			{
+				Logger::error() << "Failed outline insertion " << outlineQuery.lastError() << Qt::endl;
+				return false;
+			}
+			outlineQuery.finish();
+			if(!insertOutline(db, fileid, outline.children))
+			{
+				Logger::error() << "Failed outline insertion (children)) " << outlineQuery.lastError() << Qt::endl;
+				return false;
+			}
+		}
+	}
+	return true;
+}
+
+bool SqliteDbService::runWalCheckpoint()
+{
+	auto query = QSqlQuery(dbFactory->forCurrentThread());
+	return query.exec("PRAGMA wal_checkpoint(TRUNCATE);");
+}
+
 QSqlQuery SqliteDbService::exec(QString querystr, std::initializer_list<QVariant> args)
 {
 	auto query = QSqlQuery(dbFactory->forCurrentThread());
@@ -278,7 +319,33 @@ bool SqliteDbService::execBool(QString querystr, std::initializer_list<QVariant>
 	return query.value(0).toBool();
 }
 
-SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &pageData, bool pathsOnly)
+/*
+ *  The default only opens BEGIN TRANSACTION, but for multi-threaded, IMMEDIATE TRANSACTION is the more reasonable choice */
+bool SqliteDbService::beginTransaction(QSqlDatabase &db)
+{
+	QSqlQuery query(db);
+	if(!query.exec("BEGIN IMMEDIATE TRANSACTION"))
+	{
+		Logger::error() << "Immediate transaction could not be acquired" << query.lastError() << Qt::endl;
+		/* TODO: handle maybe the busy time out here */
+		return false;
+	}
+	return true;
+}
+
+bool SqliteDbService::commitTransaction(QSqlDatabase &db)
+{
+	QSqlQuery query(db);
+	if(!query.exec("COMMIT TRANSACTION"))
+	{
+		Logger::error() << "Transaction failed to commit" << Qt::endl;
+		/* TODO: handle maybe the busy time out here */
+		return false;
+	}
+	return true;
+}
+
+SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, DocumentProcessResult &processResult, bool pathsOnly)
 {
 	QString absPath = fileInfo.absoluteFilePath();
 	auto mtime = fileInfo.lastModified().toSecsSinceEpoch();
@@ -288,6 +355,11 @@ SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &
 		fileType = 'f';
 	}
 
+	/* Insertion can take a long time and other threads can be be busy... we are not guaranteed to get a lock for the transaction.
+	 *  Don't want to set the sqlite busy handler to eternity. */
+	QMutexLocker lock(&this->writeMutex);
+
+
 	QSqlDatabase db = dbFactory->forCurrentThread();
 	QSqlQuery delQuery(db);
 	delQuery.prepare("DELETE FROM file WHERE path = ?");
@@ -300,7 +372,7 @@ SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &
 	inserterQuery.addBindValue(fileInfo.size());
 	inserterQuery.addBindValue(fileType);
 
-	if(!db.transaction())
+	if(!this->beginTransaction(db))
 	{
 		Logger::error() << "Failed to open transaction for " << absPath << " : " << db.lastError() << Qt::endl;
 		return DBFAIL;
@@ -312,6 +384,7 @@ SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &
 		db.rollback();
 		return DBFAIL;
 	}
+	delQuery.finish();
 
 	if(!inserterQuery.exec())
 	{
@@ -319,25 +392,32 @@ SaveFileResult SqliteDbService::saveFile(QFileInfo fileInfo, QVector<PageData> &
 		db.rollback();
 		return DBFAIL;
 	}
+	int lastid = inserterQuery.lastInsertId().toInt();
+	inserterQuery.finish();
 
 	if(!pathsOnly)
 	{
-		int lastid = inserterQuery.lastInsertId().toInt();
-		if(!insertToFTS(false, db, lastid, pageData))
+		if(!insertToFTS(false, db, lastid, processResult.pages))
 		{
 			db.rollback();
 			Logger::error() << "Failed to insert data to FTS index " << Qt::endl;
 			return DBFAIL;
 		}
-		if(!insertToFTS(true, db, lastid, pageData))
+		if(!insertToFTS(true, db, lastid, processResult.pages))
 		{
 			db.rollback();
 			Logger::error() << "Failed to insert data to FTS index " << Qt::endl;
 			return DBFAIL;
 		}
+		if(!insertOutline(db, lastid, processResult.outlines))
+		{
+			db.rollback();
+			Logger::error() << "Failed to insert outline data " << Qt::endl;
+			return DBFAIL;
+		}
 	}
 
-	if(!db.commit())
+	if(!this->commitTransaction(db))
 	{
 		db.rollback();
 		Logger::error() << "Failed to commit transaction for " << absPath << " : " << db.lastError() << Qt::endl;
@@ -367,7 +447,7 @@ bool SqliteDbService::addTag(QString tag, const QVector<QString> &paths)
 	fileTagQuery.prepare("INSERT INTO filetag(fileid, tagid) VALUES((SELECT id FROM file WHERE path = ?), (SELECT id "
 						 "FROM tag WHERE name = ?))");
 	fileTagQuery.bindValue(1, tag);
-	if(!db.transaction())
+	if(!this->beginTransaction(db))
 	{
 		Logger::error() << "Failed to open transaction to add paths for tag " << tag << " : " << db.lastError()
 						<< Qt::endl;
@@ -379,6 +459,7 @@ bool SqliteDbService::addTag(QString tag, const QVector<QString> &paths)
 		Logger::error() << "Failed INSERT query" << tagQuery.lastError() << Qt::endl;
 		return false;
 	}
+	tagQuery.finish();
 
 	for(const QString &path : paths)
 	{
@@ -389,9 +470,9 @@ bool SqliteDbService::addTag(QString tag, const QVector<QString> &paths)
 			Logger::error() << "Failed to add paths to tag" << Qt::endl;
 			return false;
 		}
+		fileTagQuery.finish();
 	}
-
-	if(!db.commit())
+	if(!this->commitTransaction(db))
 	{
 		db.rollback();
 		Logger::error() << "Failed to commit tag insertion transaction" << db.lastError() << Qt::endl;
@@ -422,6 +503,7 @@ bool SqliteDbService::removePathsForTag(QString tag, const QVector<QString> &pat
 			Logger::error() << "An error occured while trying to remove paths from tag assignment" << Qt::endl;
 			return false;
 		}
+		fileTagQuery.finish();
 	}
 	return true;
 }
@@ -429,7 +511,7 @@ bool SqliteDbService::removePathsForTag(QString tag, const QVector<QString> &pat
 bool SqliteDbService::deleteTag(QString tag)
 {
 	QSqlDatabase db = dbFactory->forCurrentThread();
-	if(!db.transaction())
+	if(!this->beginTransaction(db))
 	{
 		Logger::error() << "Failed to open transaction while trying to delete tag " << tag << " : " << db.lastError()
 						<< Qt::endl;
@@ -446,6 +528,7 @@ bool SqliteDbService::deleteTag(QString tag)
 		Logger::error() << "Error while trying to delete tag: " << db.lastError() << Qt::endl;
 		return false;
 	}
+	assignmentDeleteQuery.finish();
 
 	QSqlQuery deleteTagQuery(db);
 	deleteTagQuery.prepare("DELETE FROM tag WHERE name = ?");
@@ -456,8 +539,9 @@ bool SqliteDbService::deleteTag(QString tag)
 		Logger::error() << "Error while trying to delete tag: " << db.lastError() << Qt::endl;
 		return false;
 	}
+	deleteTagQuery.finish();
 
-	if(!db.commit())
+	if(!this->commitTransaction(db))
 	{
 		db.rollback();
 		Logger::error() << "Error while trying to delete tag: " << db.lastError() << Qt::endl;

shared/sqlitedbservice.h

@@ -1,11 +1,12 @@
 #ifndef SQLITEDBSERVICE_H
 #define SQLITEDBSERVICE_H
 #include <QFileInfo>
+#include <QMutexLocker>
 #include <optional>
 
 #include "databasefactory.h"
 #include "utils.h"
-#include "pagedata.h"
+#include "documentprocessresult.h"
 #include "filedata.h"
 #include "../shared/sqlitesearch.h"
 #include "../shared/token.h"
@@ -20,9 +21,14 @@ class SqliteDbService
 	QSqlQuery exec(QString query, std::initializer_list<QVariant> args);
 	bool execBool(QString querystr, std::initializer_list<QVariant> args);
 
+	bool beginTransaction(QSqlDatabase &db);
+	bool commitTransaction(QSqlDatabase &db);
+
+	QMutex writeMutex;
+
   public:
 	SqliteDbService(DatabaseFactory &dbFactory);
-	SaveFileResult saveFile(QFileInfo fileInfo, QVector<PageData> &pageData, bool pathsOnly);
+	SaveFileResult saveFile(QFileInfo fileInfo, DocumentProcessResult &pageData, bool pathsOnly);
 
 	bool deleteFile(QString path);
 	bool fileExistsInDatabase(QString path);
@@ -42,6 +48,9 @@ class SqliteDbService
 	QVector<SearchResult> search(const LooqsQuery &query);
 
 	std::optional<QChar> queryFileType(QString absPath);
+	bool insertOutline(QSqlDatabase &db, int fileid, const QVector<DocumentOutlineEntry> &outlines);
+
+	bool runWalCheckpoint();
 };
 
 #endif // SQLITEDBSERVICE_H

shared/sqlitesearch.cpp

@@ -148,6 +148,11 @@ QPair<QString, QVector<QString>> SqliteSearch::createSql(const Token &token)
 		return {" file.id IN (SELECT fileid FROM filetag WHERE tagid = (SELECT id FROM tag WHERE name = ?)) ",
 				{value.toLower()}};
 	}
+	if(token.type == FILTER_OUTLINE_CONTAINS)
+	{
+		return {" outline.text LIKE '%' || ? || '%'  ", {value.toLower()}};
+	}
+
 	throw LooqsGeneralException("Unknown token passed (should not happen)");
 }
 
@@ -156,6 +161,7 @@ QSqlQuery SqliteSearch::makeSqlQuery(const LooqsQuery &query)
 	QString whereSql;
 	QVector<QString> bindValues;
 	bool isContentSearch = (query.getTokensMask() & FILTER_CONTENT) == FILTER_CONTENT;
+	bool isOutlineSearch = query.hasOutlineSearch();
 	if(query.getTokens().isEmpty())
 	{
 		throw LooqsGeneralException("Nothing to search for supplied");
@@ -200,15 +206,22 @@ QSqlQuery SqliteSearch::makeSqlQuery(const LooqsQuery &query)
 	}
 	else
 	{
+		QString pageColumn = "'0' as page";
+		QString joiners = "";
+		if(isOutlineSearch)
+		{
+			pageColumn = "outline.page as page";
+			joiners = " INNER JOIN outline ON outline.fileid = file.id ";
+		}
 		if(sortSql.isEmpty())
 		{
 			sortSql = "ORDER BY file.mtime DESC";
 		}
-		prepSql = "SELECT file.path AS path, '0' as page,  file.mtime AS mtime, file.size AS size, file.filetype AS "
-				  "filetype FROM file WHERE  1=1 AND " +
-				  whereSql + " " + sortSql;
+		prepSql = "SELECT DISTINCT file.path AS path, " + pageColumn +
+				  ",file.mtime AS mtime, file.size AS size, "
+				  "file.filetype AS filetype FROM file" +
+				  joiners + " WHERE  1=1 AND " + whereSql + " " + sortSql;
 	}
-
 	if(query.getLimit() > 0)
 	{
 		prepSql += " LIMIT " + QString::number(query.getLimit());
@@ -242,7 +255,7 @@ QVector<SearchResult> SqliteSearch::search(const LooqsQuery &query)
 		throw LooqsGeneralException("SQL Error: " + dbQuery.lastError().text());
 	}
 
-	bool contentSearch = query.hasContentSearch();
+	bool contentSearch = query.hasContentSearch() || query.hasOutlineSearch();
 	while(dbQuery.next())
 	{
 		SearchResult result;

shared/tagstripperprocessor.cpp

@@ -1,14 +1,14 @@
 #include "tagstripperprocessor.h"
-
+#include <QRegularExpression>
 TagStripperProcessor::TagStripperProcessor()
 {
 }
 
-QVector<PageData> TagStripperProcessor::process(const QByteArray &data) const
+DocumentProcessResult TagStripperProcessor::process(const QByteArray &data) const
 {
 	auto result = DefaultTextProcessor::process(data);
 	// TODO: does not work properly with <br> and does not deal with entities...
-
-	result[0].content.remove(QRegExp("<[^>]*>"));
+	Q_ASSERT(result.pages.size() > 0);
+	result.pages[0].content.remove(QRegularExpression("<[^>]*>"));
 	return result;
 }

shared/tagstripperprocessor.h

@@ -8,7 +8,7 @@ class TagStripperProcessor : public DefaultTextProcessor
 	TagStripperProcessor();
 
   public:
-	QVector<PageData> process(const QByteArray &data) const override;
+	DocumentProcessResult process(const QByteArray &data) const override;
 };
 
 #endif // XMLSTRIPPERPROCESSOR_H

shared/token.h

@@ -20,6 +20,7 @@ enum TokenType
 	FILTER_PATH_ENDS,
 	FILTER_PATH_STARTS,
 	FILTER_TAG_ASSIGNED,
+	FILTER_OUTLINE_CONTAINS,
 	FILTER_CONTENT = 512, /* Everything below here is content search (except LIMIT) */
 	FILTER_CONTENT_CONTAINS,
 	FILTER_CONTENT_PAGE,

shared/utils.cpp

@@ -14,7 +14,7 @@ QByteArray Utils::readFile(QString path)
 	QByteArray data = file.readAll();
 	if(data.isEmpty() && file.error() != QFileDevice::FileError::NoError)
 	{
-		throw LooqsGeneralException("Error reading file: " + path + ", Error: " + file.error());
+		throw LooqsGeneralException("Error reading file: " + path + ", Error: " + QString::number(file.error()));
 	}
 	return data;
 }

shared/wildcardmatcher.cpp

@@ -5,9 +5,8 @@ void WildcardMatcher::setPatterns(QStringList patterns)
 	this->regexes.clear();
 	for(QString &str : patterns)
 	{
-		QRegExp regexp;
-		regexp.setPattern(str);
-		regexp.setPatternSyntax(QRegExp::WildcardUnix);
+		QRegularExpression regexp;
+		regexp.setPattern(QRegularExpression::wildcardToRegularExpression(str, QRegularExpression::UnanchoredWildcardConversion));
 		this->regexes.append(regexp);
 	}
 }
@@ -18,9 +17,10 @@ WildcardMatcher::WildcardMatcher()
 
 bool WildcardMatcher::match(QString haystack) const
 {
-	for(const QRegExp &regexp : this->regexes)
+	for(const QRegularExpression &regexp : this->regexes)
 	{
-		if(regexp.exactMatch(haystack))
+		QRegularExpressionMatch match = regexp.match(haystack);
+		if(match.hasMatch())
 		{
 			return true;
 		}

shared/wildcardmatcher.h

@@ -1,11 +1,11 @@
 #ifndef WILDCARDMATCHER_H
 #define WILDCARDMATCHER_H
 #include <QStringList>
-#include <QRegExp>
+#include <QRegularExpression>
 class WildcardMatcher
 {
   private:
-	QVector<QRegExp> regexes;
+	QVector<QRegularExpression> regexes;
 	QStringList patterns;
 
   public:

submodules/exile.h

@@ -1 +1 @@
-Subproject commit 44b9a17becf6882e1b3728cbf885ae9e5a6717af
+Subproject commit 4cfdead5d0d2cb4ecee4e5e654e8e90dda683744