qt: Support disabling and enabling of keys

* lang/qt/src/Makefile.am: Add new files.
* lang/qt/src/job.cpp (QuickJob): Move definition of constructor and
destructor and inclusion of the moc file to quickjob.cpp.
* lang/qt/src/qgpgmequickjob.cpp (class QGpgMEQuickJobPrivate): New.
(QGpgMEQuickJob::QGpgMEQuickJob): Instantiate private job class.
(set_key_enabled): New.
* lang/qt/src/quickjob.cpp: New.
* lang/qt/src/quickjob.h (class QuickJob): Add member function
startSetKeyEnabled.
* lang/qt/src/quickjob_p.h: New.

* lang/qt/tests/Makefile.am: Add new test for Qt 5 and Qt 6.
* lang/qt/tests/t-disablekey.cpp: New.
--

GnuPG-bug-id: 7239

9 files changed, 300 insertions, 7 deletions

diff --git a/NEWS b/NEWS
index 5a80a997..2f312569 100644
--- a/NEWS
+++ b/NEWS
@@ -38,6 +38,8 @@ Noteworthy changes in version 1.24.0 (unrelease)
 
  * qt: Allow appending a detached signature to an existing file.  [T6867]
 
+ * qt: Add support for enabling and disabling keys.  [T7239]
+
  * Interface changes relative to the 1.23.2 release:
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  GPGME_ENCRYPT_FILE                      NEW.
@@ -101,6 +103,7 @@ Noteworthy changes in version 1.24.0 (unrelease)
  qt: VerifyOpaqueJob::outputFile         NEW.
  qt: ImportJob::setImportOptions         NEW.
  qt: ImportJob::importOptions            NEW.
+ qt: QuickJob::startSetKeyEnabled        NEW.
 
 
 Noteworthy changes in version 1.23.2 (2023-11-28)
diff --git a/lang/qt/src/Makefile.am b/lang/qt/src/Makefile.am
index 74eca04d..1ba61fab 100644
--- a/lang/qt/src/Makefile.am
+++ b/lang/qt/src/Makefile.am
@@ -64,6 +64,7 @@ qgpgme_sources = \
     qgpgmetofupolicyjob.cpp qgpgmequickjob.cpp \
     defaultkeygenerationjob.cpp qgpgmewkspublishjob.cpp \
     qgpgmegpgcardjob.cpp changeexpiryjob.cpp encryptjob.cpp importjob.cpp \
+    quickjob.cpp \
     signarchivejob.cpp \
     signencryptjob.cpp \
     signencryptarchivejob.cpp \
@@ -229,6 +230,7 @@ private_qgpgme_headers = \
     qgpgmetofupolicyjob.h \
     qgpgmegpgcardjob.h \
     qgpgmequickjob.h \
+    quickjob_p.h \
     signarchivejob_p.h \
     signencryptjob_p.h \
     signencryptarchivejob_p.h \
diff --git a/lang/qt/src/job.cpp b/lang/qt/src/job.cpp
index 8150d9a3..bbbca293 100644
--- a/lang/qt/src/job.cpp
+++ b/lang/qt/src/job.cpp
@@ -63,7 +63,6 @@
 #include "wkspublishjob.h"
 #include "tofupolicyjob.h"
 #include "threadedjobmixin.h"
-#include "quickjob.h"
 #include "gpgcardjob.h"
 #include "receivekeysjob.h"
 #include "revokekeyjob.h"
@@ -179,7 +178,6 @@ make_job_subclass(KeyForMailboxJob)
 make_job_subclass(WKDLookupJob)
 make_job_subclass(WKSPublishJob)
 make_job_subclass(TofuPolicyJob)
-make_job_subclass(QuickJob)
 make_job_subclass(GpgCardJob)
 make_job_subclass(RevokeKeyJob)
 make_job_subclass(SetPrimaryUserIDJob)
@@ -210,7 +208,6 @@ make_job_subclass(SetPrimaryUserIDJob)
 #include "wkdlookupjob.moc"
 #include "wkspublishjob.moc"
 #include "tofupolicyjob.moc"
-#include "quickjob.moc"
 #include "gpgcardjob.moc"
 #include "receivekeysjob.moc"
 #include "revokekeyjob.moc"
diff --git a/lang/qt/src/qgpgmequickjob.cpp b/lang/qt/src/qgpgmequickjob.cpp
index 8da1f9a0..d65afd7d 100644
--- a/lang/qt/src/qgpgmequickjob.cpp
+++ b/lang/qt/src/qgpgmequickjob.cpp
@@ -37,23 +37,58 @@
 
 #include "qgpgmequickjob.h"
 
+#include "qgpgme_debug.h"
+#include "quickjob_p.h"
+#include "util.h"
+
 #include <gpgme++/context.h>
 #include <gpgme++/key.h>
 
-#include "util.h"
 
 using namespace QGpgME;
 using namespace GpgME;
 
+namespace
+{
+
+class QGpgMEQuickJobPrivate : public QuickJobPrivate
+{
+    QGpgMEQuickJob *q = nullptr;
+
+public:
+    QGpgMEQuickJobPrivate(QGpgMEQuickJob *qq)
+        : q{qq}
+    {
+    }
+
+    ~QGpgMEQuickJobPrivate() override = default;
+
+private:
+    GpgME::Error startIt() override
+    {
+        Q_ASSERT(!"Not supported by this Job class.");
+        return Error::fromCode(GPG_ERR_NOT_SUPPORTED);
+    }
+
+    void startNow() override
+    {
+        Q_ASSERT(!"Not supported by this Job class.");
+        q->run();
+    }
+
+    GpgME::Error startSetKeyEnabled(const GpgME::Key &key, bool enable) override;
+};
+
+}
+
 QGpgMEQuickJob::QGpgMEQuickJob(Context *context)
     : mixin_type(context)
 {
+    setJobPrivate(this, std::unique_ptr<QGpgMEQuickJobPrivate>{new QGpgMEQuickJobPrivate{this}});
     lateInitialization();
 }
 
-QGpgMEQuickJob::~QGpgMEQuickJob()
-{
-}
+QGpgMEQuickJob::~QGpgMEQuickJob() = default;
 
 static QGpgMEQuickJob::result_type createWorker(GpgME::Context *ctx,
                                                 const QString &uid,
@@ -154,4 +189,23 @@ void QGpgMEQuickJob::startAddAdsk(const GpgME::Key &key, const char *adsk)
     run(std::bind(&addAdskWorker, std::placeholders::_1, key, adsk));
 }
 
+static QGpgMEQuickJob::result_type set_key_enabled(Context *ctx, const Key &key, bool enabled)
+{
+    const auto err = ctx->setKeyEnabled(key, enabled);
+    return std::make_tuple(err, QString(), Error());
+}
+
+Error QGpgMEQuickJobPrivate::startSetKeyEnabled(const Key &key, bool enabled)
+{
+    if (key.isNull()) {
+        return Error::fromCode(GPG_ERR_INV_VALUE);
+    }
+
+    q->run([=](Context *ctx) {
+        return set_key_enabled(ctx, key, enabled);
+    });
+
+    return {};
+}
+
 #include "qgpgmequickjob.moc"
diff --git a/lang/qt/src/quickjob.cpp b/lang/qt/src/quickjob.cpp
new file mode 100644
index 00000000..1c9343da
--- /dev/null
+++ b/lang/qt/src/quickjob.cpp
@@ -0,0 +1,52 @@
+/*
+    quickjob.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2024 g10 Code GmbH
+    Software engineering by Ingo Klöcker <[email protected]>
+
+    QGpgME 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.
+
+    QGpgME 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
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#include "quickjob.h"
+#include "quickjob_p.h"
+
+using namespace QGpgME;
+
+QuickJob::QuickJob(QObject *parent)
+    : Job{parent}
+{
+}
+
+QuickJob::~QuickJob() = default;
+
+GpgME::Error QuickJob::startSetKeyEnabled(const GpgME::Key &key, bool enabled)
+{
+    auto d = jobPrivate<QuickJobPrivate>(this);
+    return d->startSetKeyEnabled(key, enabled);
+}
+
+#include "quickjob.moc"
diff --git a/lang/qt/src/quickjob.h b/lang/qt/src/quickjob.h
index 049438d6..df8ac2b5 100644
--- a/lang/qt/src/quickjob.h
+++ b/lang/qt/src/quickjob.h
@@ -84,6 +84,14 @@ public:
     /** Start --quick-add-adsk */
     virtual void startAddAdsk(const GpgME::Key &key, const char *adsk) = 0;
 
+    /**
+     * Starts the operation to enable or disable the OpenPGP key \a key.
+     * If \a enabled is \c true then the key is enabled. Otherwise, the key is disabled.
+     *
+     * \note Requires gpg 2.4.6.
+     */
+    GpgME::Error startSetKeyEnabled(const GpgME::Key &key, bool enabled);
+
 Q_SIGNALS:
     void result(const GpgME::Error &error,
                 const QString &auditLogAsHtml = QString(), const GpgME::Error &auditLogError = GpgME::Error());
diff --git a/lang/qt/src/quickjob_p.h b/lang/qt/src/quickjob_p.h
new file mode 100644
index 00000000..a8c993a2
--- /dev/null
+++ b/lang/qt/src/quickjob_p.h
@@ -0,0 +1,51 @@
+/*
+    quickjob_p.h
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2024 g10 Code GmbH
+    Software engineering by Ingo Klöcker <[email protected]>
+
+    QGpgME 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.
+
+    QGpgME 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
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifndef __QGPGME_QUICKJOB_P_H__
+#define __QGPGME_QUICKJOB_P_H__
+
+#include "job_p.h"
+
+#include "quickjob.h"
+
+namespace QGpgME
+{
+
+struct QuickJobPrivate : public JobPrivate
+{
+    virtual GpgME::Error startSetKeyEnabled(const GpgME::Key &key, bool enabled) = 0;
+};
+
+}
+
+#endif // __QGPGME_QUICKJOB_P_H__
diff --git a/lang/qt/tests/Makefile.am b/lang/qt/tests/Makefile.am
index 2747a63c..cf6dbd55 100644
--- a/lang/qt/tests/Makefile.am
+++ b/lang/qt/tests/Makefile.am
@@ -33,6 +33,7 @@ the_tests5 = \
 	t-changeexpiryjob5 \
 	t-config5 \
 	t-decryptverify5 \
+	t-disablekey5 \
 	t-encrypt5 \
 	t-import5 \
 	t-keylist5 \
@@ -69,6 +70,7 @@ the_tests6 = \
 	t-changeexpiryjob6 \
 	t-config6 \
 	t-decryptverify6 \
+	t-disablekey6 \
 	t-encrypt6 \
 	t-import6 \
 	t-keylist6 \
@@ -188,6 +190,9 @@ t_config5_CPPFLAGS = $(cppflags_qt5)
 t_decryptverify5_SOURCES = t-decryptverify.cpp $(support_src)
 t_decryptverify5_LDADD = $(ldadd_qt5)
 t_decryptverify5_CPPFLAGS = $(cppflags_qt5)
+t_disablekey5_SOURCES = t-disablekey.cpp $(support_src)
+t_disablekey5_LDADD = $(ldadd_qt5)
+t_disablekey5_CPPFLAGS = $(cppflags_qt5)
 t_encrypt5_SOURCES = t-encrypt.cpp $(support_src)
 t_encrypt5_LDADD = $(ldadd_qt5)
 t_encrypt5_CPPFLAGS = $(cppflags_qt5)
@@ -288,6 +293,9 @@ t_config6_CPPFLAGS = $(cppflags_qt6)
 t_decryptverify6_SOURCES = t-decryptverify.cpp $(support_src)
 t_decryptverify6_LDADD = $(ldadd_qt6)
 t_decryptverify6_CPPFLAGS = $(cppflags_qt6)
+t_disablekey6_SOURCES = t-disablekey.cpp $(support_src)
+t_disablekey6_LDADD = $(ldadd_qt6)
+t_disablekey6_CPPFLAGS = $(cppflags_qt6)
 t_encrypt6_SOURCES = t-encrypt.cpp $(support_src)
 t_encrypt6_LDADD = $(ldadd_qt6)
 t_encrypt6_CPPFLAGS = $(cppflags_qt6)
diff --git a/lang/qt/tests/t-disablekey.cpp b/lang/qt/tests/t-disablekey.cpp
new file mode 100644
index 00000000..40581719
--- /dev/null
+++ b/lang/qt/tests/t-disablekey.cpp
@@ -0,0 +1,118 @@
+/* t-disablekey.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2024 g10 Code GmbH
+    Software engineering by Ingo Klöcker <[email protected]>
+
+    QGpgME 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.
+
+    QGpgME 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
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include "t-support.h"
+
+#include "quickjob.h"
+#include "debug.h"
+#include "keylistjob.h"
+#include "protocol.h"
+
+#include <gpgme++/engineinfo.h>
+#include <gpgme++/keylistresult.h>
+
+#include <QDebug>
+#include <QSignalSpy>
+#include <QTest>
+
+using namespace QGpgME;
+using namespace GpgME;
+
+class DisableKeyTest: public QGpgMETest
+{
+    Q_OBJECT
+
+    Key getTestKey()
+    {
+        const std::unique_ptr<KeyListJob> job{openpgp()->keyListJob(false, true, true)};
+        std::vector<GpgME::Key> keys;
+        KeyListResult result = job->exec({QStringLiteral("[email protected]")}, false, keys);
+        VERIFY_OR_OBJECT(!result.error());
+        VERIFY_OR_OBJECT(keys.size() == 1);
+        return keys.front();
+    }
+
+private Q_SLOTS:
+
+    void testDisableAndEnableKey()
+    {
+        if (GpgME::engineInfo(GpgME::GpgEngine).engineVersion() < "2.4.6") {
+            QSKIP("gpg does not yet support the --quick-set-ownertrust command");
+        }
+
+        Key key = getTestKey();
+        QVERIFY(!key.isNull());
+        QVERIFY(!key.isDisabled());
+
+        {
+            const std::unique_ptr<QuickJob> job{openpgp()->quickJob()};
+            connect(job.get(), &QuickJob::result, this, [this](Error e) {
+                if (e) {
+                    qDebug() <<  "Error in result:" << e;
+                }
+                QVERIFY(!e);
+                Q_EMIT asyncDone();
+            });
+            job->startSetKeyEnabled(key, false);
+            QSignalSpy spy{this, SIGNAL(asyncDone())};
+            QVERIFY(spy.wait(QSIGNALSPY_TIMEOUT));
+        }
+        key = getTestKey();
+        QVERIFY(!key.isNull());
+        QVERIFY(key.isDisabled());
+
+        {
+            const std::unique_ptr<QuickJob> job{openpgp()->quickJob()};
+            connect(job.get(), &QuickJob::result, this, [this](Error e) {
+                if (e) {
+                    qDebug() <<  "Error in result:" << e;
+                }
+                QVERIFY(!e);
+                Q_EMIT asyncDone();
+            });
+            job->startSetKeyEnabled(key, true);
+            QSignalSpy spy{this, SIGNAL(asyncDone())};
+            QVERIFY(spy.wait(QSIGNALSPY_TIMEOUT));
+        }
+        key = getTestKey();
+        QVERIFY(!key.isNull());
+        QVERIFY(!key.isDisabled());
+    }
+};
+
+QTEST_MAIN(DisableKeyTest)
+
+#include "t-disablekey.moc"