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diff --git a/src/crypto/autodecryptverifyfilescontroller.cpp b/src/crypto/autodecryptverifyfilescontroller.cpp
index 74c4945aa..8bc45a5b1 100644
--- a/src/crypto/autodecryptverifyfilescontroller.cpp
+++ b/src/crypto/autodecryptverifyfilescontroller.cpp
@@ -1,558 +1,558 @@
/* -*- mode: c++; c-basic-offset:4 -*-
autodecryptverifyfilescontroller.cpp
This file is part of Kleopatra, the KDE keymanager
SPDX-FileCopyrightText: 2008 Klarälvdalens Datakonsult AB
SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
SPDX-FileContributor: Intevation GmbH
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <config-kleopatra.h>
#include "autodecryptverifyfilescontroller.h"
#include "fileoperationspreferences.h"
#include <crypto/gui/decryptverifyoperationwidget.h>
#include <crypto/gui/decryptverifyfilesdialog.h>
#include <crypto/decryptverifytask.h>
#include <crypto/taskcollection.h>
#include "commands/decryptverifyfilescommand.h"
#include <Libkleo/GnuPG>
#include <utils/path-helper.h>
#include <utils/input.h>
#include <utils/output.h>
#include <utils/kleo_assert.h>
#include <utils/archivedefinition.h>
#include <Libkleo/Classify>
#include <KLocalizedString>
#include <KMessageBox>
#include "kleopatra_debug.h"
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QTimer>
#include <QFileDialog>
#include <QTemporaryDir>
#include <gpgme++/decryptionresult.h>
using namespace GpgME;
using namespace Kleo;
using namespace Kleo::Crypto;
using namespace Kleo::Crypto::Gui;
class AutoDecryptVerifyFilesController::Private
{
AutoDecryptVerifyFilesController *const q;
public:
explicit Private(AutoDecryptVerifyFilesController *qq);
void slotDialogCanceled();
void schedule();
QString getEmbeddedFileName(const QString &fileName) const;
void exec();
std::vector<std::shared_ptr<Task> > buildTasks(const QStringList &, QStringList &);
struct CryptoFile {
QString baseName;
QString fileName;
GpgME::Protocol protocol = GpgME::UnknownProtocol;
int classification = 0;
std::shared_ptr<Output> output;
};
QVector<CryptoFile> classifyAndSortFiles(const QStringList &files);
void reportError(int err, const QString &details)
{
q->setLastError(err, details);
q->emitDoneOrError();
}
void cancelAllTasks();
QStringList m_passedFiles, m_filesAfterPreparation;
std::vector<std::shared_ptr<const DecryptVerifyResult> > m_results;
std::vector<std::shared_ptr<Task> > m_runnableTasks, m_completedTasks;
std::shared_ptr<Task> m_runningTask;
bool m_errorDetected = false;
DecryptVerifyOperation m_operation = DecryptVerify;
DecryptVerifyFilesDialog *m_dialog = nullptr;
std::unique_ptr<QTemporaryDir> m_workDir;
};
AutoDecryptVerifyFilesController::Private::Private(AutoDecryptVerifyFilesController *qq) : q(qq)
{
qRegisterMetaType<VerificationResult>();
}
void AutoDecryptVerifyFilesController::Private::slotDialogCanceled()
{
qCDebug(KLEOPATRA_LOG);
}
void AutoDecryptVerifyFilesController::Private::schedule()
{
if (!m_runningTask && !m_runnableTasks.empty()) {
const std::shared_ptr<Task> t = m_runnableTasks.back();
m_runnableTasks.pop_back();
t->start();
m_runningTask = t;
}
if (!m_runningTask) {
kleo_assert(m_runnableTasks.empty());
for (const std::shared_ptr<const DecryptVerifyResult> &i : std::as_const(m_results)) {
Q_EMIT q->verificationResult(i->verificationResult());
}
}
}
QString AutoDecryptVerifyFilesController::Private::getEmbeddedFileName(const QString &fileName) const
{
auto it = std::find_if(m_results.cbegin(), m_results.cend(), [fileName](const auto &r) {
return r->fileName() == fileName;
});
if (it != m_results.cend()) {
const auto embeddedFilePath = QString::fromUtf8((*it)->decryptionResult().fileName());
if (embeddedFilePath.contains(QLatin1Char{'\\'})) {
// ignore embedded file names containing '\'
return {};
}
// strip the path from the embedded file name
return QFileInfo{embeddedFilePath}.fileName();
} else {
return {};
}
}
void AutoDecryptVerifyFilesController::Private::exec()
{
Q_ASSERT(!m_dialog);
QStringList undetected;
std::vector<std::shared_ptr<Task> > tasks = buildTasks(m_passedFiles, undetected);
if (!undetected.isEmpty()) {
// Since GpgME 1.7.0 Classification is supposed to be reliable
// so we really can't do anything with this data.
reportError(makeGnuPGError(GPG_ERR_GENERAL),
xi18n("Failed to find encrypted or signed data in one or more files.<nl/>"
"You can manually select what to do with the files now.<nl/>"
"If they contain signed or encrypted data please report a bug (see Help->Report Bug)."));
auto cmd = new Commands::DecryptVerifyFilesCommand(undetected, nullptr, true);
cmd->start();
}
if (tasks.empty()) {
q->emitDoneOrError();
return;
}
Q_ASSERT(m_runnableTasks.empty());
m_runnableTasks.swap(tasks);
std::shared_ptr<TaskCollection> coll(new TaskCollection);
for (const std::shared_ptr<Task> &i : std::as_const(m_runnableTasks)) {
q->connectTask(i);
}
coll->setTasks(m_runnableTasks);
m_dialog = new DecryptVerifyFilesDialog(coll);
m_dialog->setOutputLocation(heuristicBaseDirectory(m_passedFiles));
QTimer::singleShot(0, q, SLOT(schedule()));
if (m_dialog->exec() == QDialog::Accepted && m_workDir) {
// Without workdir there is nothing to move.
const QDir workdir(m_workDir->path());
const QDir outDir(m_dialog->outputLocation());
bool overWriteAll = false;
qCDebug(KLEOPATRA_LOG) << workdir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot);
for (const QFileInfo &fi: workdir.entryInfoList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot)) {
const auto inpath = fi.absoluteFilePath();
if (fi.isDir()) {
// A directory. Assume that the input was an archive
// and avoid directory merges by trying to find a non
// existing directory.
auto candidate = fi.baseName();
if (candidate.startsWith(QLatin1Char('-'))) {
// Bug in GpgTar Extracts stdout passed archives to a dir named -
candidate = QFileInfo(m_passedFiles.first()).baseName();
}
QString suffix;
QFileInfo ofi;
int i = 0;
do {
ofi = QFileInfo(outDir.absoluteFilePath(candidate + suffix));
if (!ofi.exists()) {
break;
}
suffix = QStringLiteral("_%1").arg(++i);
} while (i < 1000);
if (!moveDir(inpath, ofi.absoluteFilePath())) {
reportError(makeGnuPGError(GPG_ERR_GENERAL),
xi18n("Failed to move <filename>%1</filename> to <filename>%2</filename>.",
inpath, ofi.absoluteFilePath()));
}
continue;
}
const auto embeddedFileName = getEmbeddedFileName(inpath);
QString outFileName = fi.fileName();
if (!embeddedFileName.isEmpty() && embeddedFileName != fi.fileName()) {
// we switch "Yes" and "No" because Yes is default, but saving with embedded file name could be dangerous
const auto answer = KMessageBox::questionYesNoCancel(m_dialog,
xi18n("Shall the file be saved with the original file name <filename>%1</filename>?", embeddedFileName),
i18n("Use Original File Name?"),
KGuiItem(xi18n("No, Save As <filename>%1</filename>", fi.fileName())),
KGuiItem(xi18n("Yes, Save As <filename>%1</filename>", embeddedFileName)));
if (answer == KMessageBox::Cancel) {
qCDebug(KLEOPATRA_LOG) << "Saving canceled for:" << inpath;
continue;
} else if (answer == KMessageBox::No) {
outFileName = embeddedFileName;
}
}
const auto outpath = outDir.absoluteFilePath(outFileName);
qCDebug(KLEOPATRA_LOG) << "Moving " << inpath << " to " << outpath;
const QFileInfo ofi(outpath);
if (ofi.exists()) {
int sel = KMessageBox::No;
if (!overWriteAll) {
sel = KMessageBox::questionYesNoCancel(m_dialog, i18n("The file <b>%1</b> already exists.\n"
"Overwrite?", outpath),
i18n("Overwrite Existing File?"),
KStandardGuiItem::overwrite(),
KGuiItem(i18n("Overwrite All")),
KStandardGuiItem::cancel());
}
if (sel == KMessageBox::Cancel) {
qCDebug(KLEOPATRA_LOG) << "Overwriting canceled for: " << outpath;
continue;
}
if (sel == KMessageBox::No) { //Overwrite All
overWriteAll = true;
}
if (!QFile::remove(outpath)) {
reportError(makeGnuPGError(GPG_ERR_GENERAL),
xi18n("Failed to delete <filename>%1</filename>.",
outpath));
continue;
}
}
if (!QFile::rename(inpath, outpath)) {
reportError(makeGnuPGError(GPG_ERR_GENERAL),
xi18n("Failed to move <filename>%1</filename> to <filename>%2</filename>.",
inpath, outpath));
}
}
}
q->emitDoneOrError();
delete m_dialog;
m_dialog = nullptr;
}
QVector<AutoDecryptVerifyFilesController::Private::CryptoFile> AutoDecryptVerifyFilesController::Private::classifyAndSortFiles(const QStringList &files)
{
const auto isSignature = [](int classification) -> bool {
return mayBeDetachedSignature(classification)
|| mayBeOpaqueSignature(classification)
|| (classification & Class::TypeMask) == Class::ClearsignedMessage;
};
QVector<CryptoFile> out;
for (const auto &file : files) {
CryptoFile cFile;
cFile.fileName = file;
cFile.baseName = stripSuffix(file);
cFile.classification = classify(file);
cFile.protocol = findProtocol(cFile.classification);
auto it = std::find_if(out.begin(), out.end(),
[&cFile](const CryptoFile &other) {
return other.protocol == cFile.protocol
&& other.baseName == cFile.baseName;
});
if (it != out.end()) {
// If we found a file with the same basename, make sure that encrypted
// file is before the signature file, so that we first decrypt and then
// verify
if (isSignature(cFile.classification) && isCipherText(it->classification)) {
out.insert(it + 1, cFile);
} else if (isCipherText(cFile.classification) && isSignature(it->classification)) {
out.insert(it, cFile);
} else {
// both are signatures or both are encrypted files, in which
// case order does not matter
out.insert(it, cFile);
}
} else {
out.push_back(cFile);
}
}
return out;
}
std::vector< std::shared_ptr<Task> > AutoDecryptVerifyFilesController::Private::buildTasks(const QStringList &fileNames, QStringList &undetected)
{
// sort files so that we make sure we first decrypt and then verify
QVector<CryptoFile> cryptoFiles = classifyAndSortFiles(fileNames);
std::vector<std::shared_ptr<Task> > tasks;
for (auto it = cryptoFiles.begin(), end = cryptoFiles.end(); it != end; ++it) {
auto &cFile = (*it);
QFileInfo fi(cFile.fileName);
qCDebug(KLEOPATRA_LOG) << "classified" << cFile.fileName << "as" << printableClassification(cFile.classification);
if (!fi.isReadable()) {
reportError(makeGnuPGError(GPG_ERR_ASS_NO_INPUT),
xi18n("Cannot open <filename>%1</filename> for reading.", cFile.fileName));
continue;
}
if (mayBeAnyCertStoreType(cFile.classification)) {
// Trying to verify a certificate. Possible because extensions are often similar
// for PGP Keys.
reportError(makeGnuPGError(GPG_ERR_ASS_NO_INPUT),
xi18n("The file <filename>%1</filename> contains certificates and can't be decrypted or verified.", cFile.fileName));
qCDebug(KLEOPATRA_LOG) << "reported error";
continue;
}
// We can't reliably detect CMS detached signatures, so we will try to do
// our best to use the current file as a detached signature and fallback to
// opaque signature otherwise.
if (cFile.protocol == GpgME::CMS && mayBeDetachedSignature(cFile.classification)) {
// First, see if previous task was a decryption task for the same file
// and "pipe" it's output into our input
std::shared_ptr<Input> input;
bool prepend = false;
if (it != cryptoFiles.begin()) {
const auto prev = it - 1;
if (prev->protocol == cFile.protocol && prev->baseName == cFile.baseName) {
input = Input::createFromOutput(prev->output);
prepend = true;
}
}
if (!input) {
if (QFile::exists(cFile.baseName)) {
input = Input::createFromFile(cFile.baseName);
}
}
if (input) {
qCDebug(KLEOPATRA_LOG) << "Detached CMS verify: " << cFile.fileName;
std::shared_ptr<VerifyDetachedTask> t(new VerifyDetachedTask);
t->setInput(Input::createFromFile(cFile.fileName));
t->setSignedData(input);
t->setProtocol(cFile.protocol);
if (prepend) {
// Put the verify task BEFORE the decrypt task in the tasks queue,
// because the tasks are executed in reverse order!
tasks.insert(tasks.end() - 1, t);
} else {
tasks.push_back(t);
}
continue;
} else {
// No signed data, maybe not a detached signature
}
}
if (isDetachedSignature(cFile.classification)) {
// Detached signature, try to find data or ask the user.
QString signedDataFileName = cFile.baseName;
if (!QFile::exists(signedDataFileName)) {
signedDataFileName = QFileDialog::getOpenFileName(nullptr, xi18n("Select the file to verify with the signature <filename>%1</filename>", fi.fileName()),
- fi.dir().path());
+ fi.path());
}
if (signedDataFileName.isEmpty()) {
qCDebug(KLEOPATRA_LOG) << "No signed data selected. Verify aborted.";
} else {
qCDebug(KLEOPATRA_LOG) << "Detached verify: " << cFile.fileName << " Data: " << signedDataFileName;
std::shared_ptr<VerifyDetachedTask> t(new VerifyDetachedTask);
t->setInput(Input::createFromFile(cFile.fileName));
t->setSignedData(Input::createFromFile(signedDataFileName));
t->setProtocol(cFile.protocol);
tasks.push_back(t);
}
continue;
}
if (!mayBeAnyMessageType(cFile.classification)) {
// Not a Message? Maybe there is a signature for this file?
const auto signatures = findSignatures(cFile.fileName);
bool foundSig = false;
if (!signatures.empty()) {
for (const QString &sig : signatures) {
const auto classification = classify(sig);
qCDebug(KLEOPATRA_LOG) << "Guessing: " << sig << " is a signature for: " << cFile.fileName
<< "Classification: " << classification;
const auto proto = findProtocol(classification);
if (proto == GpgME::UnknownProtocol) {
qCDebug(KLEOPATRA_LOG) << "Could not determine protocol. Skipping guess.";
continue;
}
foundSig = true;
std::shared_ptr<VerifyDetachedTask> t(new VerifyDetachedTask);
t->setInput(Input::createFromFile(sig));
t->setSignedData(Input::createFromFile(cFile.fileName));
t->setProtocol(proto);
tasks.push_back(t);
}
}
if (!foundSig) {
undetected << cFile.fileName;
qCDebug(KLEOPATRA_LOG) << "Failed detection for: " << cFile.fileName << " adding to undetected.";
}
} else {
const FileOperationsPreferences fileOpSettings;
// Any Message type so we have input and output.
const auto input = Input::createFromFile(cFile.fileName);
std::shared_ptr<ArchiveDefinition> ad;
if (fileOpSettings.autoExtractArchives()) {
const auto archiveDefinitions = ArchiveDefinition::getArchiveDefinitions();
ad = q->pick_archive_definition(cFile.protocol, archiveDefinitions, cFile.fileName);
}
if (fileOpSettings.dontUseTmpDir()) {
if (!m_workDir) {
m_workDir = std::make_unique<QTemporaryDir>(heuristicBaseDirectory(fileNames) + QStringLiteral("/kleopatra-XXXXXX"));
}
if (!m_workDir->isValid()) {
qCDebug(KLEOPATRA_LOG) << m_workDir->path() << "not a valid temporary directory.";
m_workDir.reset();
}
}
if (!m_workDir) {
m_workDir = std::make_unique<QTemporaryDir>();
}
qCDebug(KLEOPATRA_LOG) << "Using:" << m_workDir->path() << "as temporary directory.";
const auto wd = QDir(m_workDir->path());
const auto output = ad ? ad->createOutputFromUnpackCommand(cFile.protocol, cFile.fileName, wd)
: Output::createFromFile(wd.absoluteFilePath(outputFileName(fi.fileName())), false);
// If this might be opaque CMS signature, then try that. We already handled
// detached CMS signature above
const auto isCMSOpaqueSignature = cFile.protocol == GpgME::CMS && mayBeOpaqueSignature(cFile.classification);
if (isOpaqueSignature(cFile.classification) || isCMSOpaqueSignature) {
qCDebug(KLEOPATRA_LOG) << "creating a VerifyOpaqueTask";
std::shared_ptr<VerifyOpaqueTask> t(new VerifyOpaqueTask);
t->setInput(input);
t->setOutput(output);
t->setProtocol(cFile.protocol);
tasks.push_back(t);
} else {
// Any message. That is not an opaque signature needs to be
// decrypted. Verify we always do because we can't know if
// an encrypted message is also signed.
qCDebug(KLEOPATRA_LOG) << "creating a DecryptVerifyTask";
std::shared_ptr<DecryptVerifyTask> t(new DecryptVerifyTask);
t->setInput(input);
t->setOutput(output);
t->setProtocol(cFile.protocol);
cFile.output = output;
tasks.push_back(t);
}
}
}
return tasks;
}
void AutoDecryptVerifyFilesController::setFiles(const QStringList &files)
{
d->m_passedFiles = files;
}
AutoDecryptVerifyFilesController::AutoDecryptVerifyFilesController(QObject *parent) :
DecryptVerifyFilesController(parent), d(new Private(this))
{
}
AutoDecryptVerifyFilesController::AutoDecryptVerifyFilesController(const std::shared_ptr<const ExecutionContext> &ctx, QObject *parent) :
DecryptVerifyFilesController(ctx, parent), d(new Private(this))
{
}
AutoDecryptVerifyFilesController::~AutoDecryptVerifyFilesController()
{
qCDebug(KLEOPATRA_LOG);
}
void AutoDecryptVerifyFilesController::start()
{
d->exec();
}
void AutoDecryptVerifyFilesController::setOperation(DecryptVerifyOperation op)
{
d->m_operation = op;
}
DecryptVerifyOperation AutoDecryptVerifyFilesController::operation() const
{
return d->m_operation;
}
void AutoDecryptVerifyFilesController::Private::cancelAllTasks()
{
// we just kill all runnable tasks - this will not result in
// signal emissions.
m_runnableTasks.clear();
// a cancel() will result in a call to
if (m_runningTask) {
m_runningTask->cancel();
}
}
void AutoDecryptVerifyFilesController::cancel()
{
qCDebug(KLEOPATRA_LOG);
try {
d->m_errorDetected = true;
if (d->m_dialog) {
d->m_dialog->close();
}
d->cancelAllTasks();
} catch (const std::exception &e) {
qCDebug(KLEOPATRA_LOG) << "Caught exception: " << e.what();
}
}
void AutoDecryptVerifyFilesController::doTaskDone(const Task *task, const std::shared_ptr<const Task::Result> &result)
{
Q_ASSERT(task);
Q_UNUSED(task)
// We could just delete the tasks here, but we can't use
// Qt::QueuedConnection here (we need sender()) and other slots
// might not yet have executed. Therefore, we push completed tasks
// into a burial container
d->m_completedTasks.push_back(d->m_runningTask);
d->m_runningTask.reset();
if (const std::shared_ptr<const DecryptVerifyResult> &dvr = std::dynamic_pointer_cast<const DecryptVerifyResult>(result)) {
d->m_results.push_back(dvr);
}
QTimer::singleShot(0, this, SLOT(schedule()));
}
#include "moc_autodecryptverifyfilescontroller.cpp"

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