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/***************************************************************************
* Copyright (C) 2010 by Peter Penz <peter.penz19@gmail.com> *
* *
* 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 2 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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "kio_filenamesearch.h"
#include <KCoreDirLister>
#include <KFileItem>
#include <KIO/Job>
#include <QTemporaryFile>
#include <QScopedPointer>
#include <QCoreApplication>
#include <QRegularExpression>
#include <QUrl>
#include <QUrlQuery>
#include <QtDBus/QDBusInterface>
Q_LOGGING_CATEGORY(KIO_FILENAMESEARCH, "kio_filenamesearch")
FileNameSearchProtocol::FileNameSearchProtocol(const QByteArray &pool, const QByteArray &app)
: SlaveBase("search", pool, app)
{
QDBusInterface kded(QStringLiteral("org.kde.kded5"), QStringLiteral("/kded"), QStringLiteral("org.kde.kded5"));
kded.call(QStringLiteral("loadModule"), QStringLiteral("filenamesearchmodule"));
}
FileNameSearchProtocol::~FileNameSearchProtocol()
{
}
void FileNameSearchProtocol::listDir(const QUrl &url)
{
const QUrlQuery urlQuery(url);
const QString search = urlQuery.queryItemValue("search");
if (search.isEmpty()) {
finished();
return;
}
const QRegularExpression pattern(search, QRegularExpression::CaseInsensitiveOption);
std::function<bool(const KFileItem &)> validator;
if (urlQuery.queryItemValue("checkContent") == QStringLiteral("yes")) {
validator = [pattern](const KFileItem &item) -> bool {
return item.determineMimeType().inherits(QStringLiteral("text/plain")) &&
contentContainsPattern(item.url(), pattern);
};
} else {
validator = [pattern](const KFileItem &item) -> bool {
return item.text().contains(pattern);
};
}
QSet<QString> iteratedDirs;
const QUrl directory(urlQuery.queryItemValue("url"));
searchDirectory(directory, validator, iteratedDirs);
finished();
}
void FileNameSearchProtocol::searchDirectory(const QUrl &directory,
const std::function<bool(const KFileItem &)> &itemValidator,
QSet<QString> &iteratedDirs)
{
if (directory.path() == QStringLiteral("/proc")) {
// Don't try to iterate the /proc directory of Linux
return;
}
// Get all items of the directory
QScopedPointer<KCoreDirLister> dirLister(new KCoreDirLister);
dirLister->setDelayedMimeTypes(true);
dirLister->openUrl(directory);
QEventLoop eventLoop;
QObject::connect(dirLister.data(), static_cast<void(KCoreDirLister::*)()>(&KCoreDirLister::canceled),
&eventLoop, &QEventLoop::quit);
QObject::connect(dirLister.data(), static_cast<void(KCoreDirLister::*)()>(&KCoreDirLister::completed),
&eventLoop, &QEventLoop::quit);
eventLoop.exec();
// Visualize all items that match the search pattern
QList<QUrl> pendingDirs;
const KFileItemList items = dirLister->items();
foreach (const KFileItem &item, items) {
if (itemValidator(item)) {
KIO::UDSEntry entry = item.entry();
entry.insert(KIO::UDSEntry::UDS_URL, item.url().url());
listEntry(entry);
}
if (item.isDir()) {
if (item.isLink()) {
// Assure that no endless searching is done in directories that
// have already been iterated.
const QUrl linkDest = item.url().resolved(QUrl::fromLocalFile(item.linkDest()));
if (!iteratedDirs.contains(linkDest.path())) {
pendingDirs.append(linkDest);
}
} else {
pendingDirs.append(item.url());
}
}
}
iteratedDirs.insert(directory.path());
dirLister.reset();
// Recursively iterate all sub directories
foreach (const QUrl &pendingDir, pendingDirs) {
searchDirectory(pendingDir, itemValidator, iteratedDirs);
}
}
bool FileNameSearchProtocol::contentContainsPattern(const QUrl &fileName, const QRegularExpression &pattern)
{
auto fileContainsPattern = [&pattern](const QString &path) -> bool {
QFile file(path);
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
return false;
}
QTextStream in(&file);
while (!in.atEnd()) {
const QString line = in.readLine();
if (line.contains(pattern)) {
return true;
}
}
return false;
};
if (fileName.isLocalFile()) {
return fileContainsPattern(fileName.toLocalFile());
} else {
QTemporaryFile tempFile;
if (tempFile.open()) {
KIO::Job* getJob = KIO::file_copy(fileName,
QUrl::fromLocalFile(tempFile.fileName()),
-1,
KIO::Overwrite | KIO::HideProgressInfo);
if (getJob->exec()) {
// The non-local file was downloaded successfully.
return fileContainsPattern(tempFile.fileName());
}
}
}
return false;
}
extern "C" int Q_DECL_EXPORT kdemain(int argc, char **argv)
{
QCoreApplication app(argc, argv);
if (argc != 4) {
qCDebug(KIO_FILENAMESEARCH) << "Usage: kio_filenamesearch protocol domain-socket1 domain-socket2"
<< endl;
return -1;
}
FileNameSearchProtocol slave(argv[2], argv[3]);
slave.dispatchLoop();
return 0;
}
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