qt: Support WKD lookup without implicit import

* lang/qt/src/Makefile.am (qgpgme_sources): Add qgpgmewkdlookupjob.cpp,
wkdlookupresult.cpp.
(qgpgme_headers): Add wkdlookupjob.h, wkdlookupresult.h.
(camelcase_headers): Add WKDLookupJob, WKDLookupResult.
(private_qgpgme_headers): Add qgpgmewkdlookupjob.h.
(qgpgme_moc_sources): Add qgpgmewkdlookupjob.moc, wkdlookupjob.moc.
* lang/qt/src/job.cpp: Define c'tor and d'tor of WKDLookupJob.
* lang/qt/src/protocol.h (Protocol::wkdLookupJob): New.
* lang/qt/src/protocol_p.h (Protocol::wkdLookupJob): New.
* lang/qt/src/qgpgmewkdlookupjob.cpp, lang/qt/src/qgpgmewkdlookupjob.h,
lang/qt/src/wkdlookupjob.h, lang/qt/src/wkdlookupresult.cpp,
lang/qt/src/wkdlookupresult.h: New.

* lang/qt/tests/Makefile.am (EXTRA_DIST): Add final.test.
(the_tests): New.
(TESTS): Remove all t-*. Add $(the_tests) and final.test.
(moc_files): Add t-wkdlookup.moc.
(t_wkdlookup_SOURCES): New.
(noinst_PROGRAMS): Add t-wkdlookup.
* lang/qt/tests/final.test: New.
* lang/qt/tests/t-support.h (QTest::toString): New template
specialization for std::string.
* lang/qt/tests/t-wkdlookup.cpp: New.
--

The new WKDLookupJob allows running a WKD lookup without implicit
import of the retrieved key. This makes it possible to do WKD lookups
similar to keyserver lookups (aka external keylistings).

The new final.test pseudo test stops a dirmngr that may have been
started by the tests. The toString() template specialization enables
printing of the actual and expected values in case of failed QCOMPARE.

GnuPG-bug-id: 5728

1 files changed, 111 insertions, 0 deletions

diff --git a/lang/qt/src/wkdlookupresult.cpp b/lang/qt/src/wkdlookupresult.cpp
new file mode 100644
index 00000000..71aa75cf
--- /dev/null
+++ b/lang/qt/src/wkdlookupresult.cpp
@@ -0,0 +1,111 @@
+/*
+    wkdlookupresult.cpp - wraps the result of a WKDLookupJob
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2021 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 "wkdlookupresult.h"
+
+#include <gpgme++/data.h>
+
+using namespace QGpgME;
+using namespace GpgME;
+
+class WKDLookupResult::Private
+{
+public:
+    GpgME::Data keyData;
+    std::string source;
+};
+
+WKDLookupResult::WKDLookupResult() = default;
+
+WKDLookupResult::~WKDLookupResult() = default;
+
+WKDLookupResult::WKDLookupResult(const Error &error)
+    : Result{error}
+    , d{}
+{
+}
+
+WKDLookupResult::WKDLookupResult(const Data &keyData, const std::string &source, const Error &error)
+    : Result{error}
+    , d{new Private{keyData, source}}
+{
+}
+
+WKDLookupResult::WKDLookupResult(const WKDLookupResult &other)
+    : Result{other}
+{
+    if (other.d) {
+        d.reset(new Private{*other.d});
+    }
+}
+
+WKDLookupResult &WKDLookupResult::operator=(const WKDLookupResult &other)
+{
+    auto tmp = other;
+    swap(tmp);
+    return *this;
+}
+
+WKDLookupResult::WKDLookupResult(WKDLookupResult &&other) = default;
+
+WKDLookupResult &WKDLookupResult::operator=(WKDLookupResult &&other) = default;
+
+void WKDLookupResult::swap(WKDLookupResult &other) noexcept
+{
+    Result::swap(other);
+    std::swap(this->d, other.d);
+}
+
+bool WKDLookupResult::isNull() const
+{
+    return !d && !bool(error());
+}
+
+Data WKDLookupResult::keyData() const
+{
+    return d ? d->keyData : Data{};
+}
+
+std::string WKDLookupResult::source() const
+{
+    return d ? d->source : std::string{};
+}
+
+void QGpgME::swap(WKDLookupResult &a, WKDLookupResult &b)
+{
+    a.swap(b);
+}