1 files changed, 114 insertions, 0 deletions

diff --git a/framework/src/domain/mimetreeparser/otp/multipartsigned.cpp b/framework/src/domain/mimetreeparser/otp/multipartsigned.cpp
new file mode 100644
index 00000000..cb0def6c
--- /dev/null
+++ b/framework/src/domain/mimetreeparser/otp/multipartsigned.cpp
@@ -0,0 +1,114 @@
+/*
+   Copyright (c) 2016 Sandro Knauß <sknauss@kde.org>
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   This library 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 Library General Public
+   License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
+*/
+
+#include "multipartsigned.h"
+
+#include "objecttreeparser.h"
+#include "messagepart.h"
+
+#include <KMime/Content>
+
+#include <QGpgME/Protocol>
+
+#include "mimetreeparser_debug.h"
+
+#include <QTextCodec>
+
+using namespace MimeTreeParser;
+
+const MultiPartSignedBodyPartFormatter *MultiPartSignedBodyPartFormatter::self;
+
+const Interface::BodyPartFormatter *MultiPartSignedBodyPartFormatter::create()
+{
+    if (!self) {
+        self = new MultiPartSignedBodyPartFormatter();
+    }
+    return self;
+}
+Interface::BodyPartFormatter::Result MultiPartSignedBodyPartFormatter::format(Interface::BodyPart *part, HtmlWriter *writer) const
+{
+    Q_UNUSED(writer)
+    const auto p = process(*part);
+    const auto mp = static_cast<MessagePart *>(p.data());
+    if (mp) {
+        mp->html(false);
+        return Ok;
+    }
+    return Failed;
+}
+
+Interface::MessagePart::Ptr MultiPartSignedBodyPartFormatter::process(Interface::BodyPart &part) const
+{
+    KMime::Content *node = part.content();
+    if (node->contents().size() != 2) {
+        qCDebug(MIMETREEPARSER_LOG) << "mulitpart/signed must have exactly two child parts!" << endl
+                                    << "processing as multipart/mixed";
+        if (!node->contents().isEmpty()) {
+            return MessagePart::Ptr(new MimeMessagePart(part.objectTreeParser(), node->contents().at(0), false));
+        } else {
+            return MessagePart::Ptr();
+        }
+    }
+
+    KMime::Content *signedData =  node->contents().at(0);
+    KMime::Content *signature = node->contents().at(1);
+    Q_ASSERT(signedData);
+    Q_ASSERT(signature);
+
+    QString protocolContentType = node->contentType()->parameter(QStringLiteral("protocol")).toLower();
+    const QString signatureContentType = QLatin1String(signature->contentType()->mimeType().toLower());
+    if (protocolContentType.isEmpty()) {
+        qCWarning(MIMETREEPARSER_LOG) << "Message doesn't set the protocol for the multipart/signed content-type, "
+                                      "using content-type of the signature:" << signatureContentType;
+        protocolContentType = signatureContentType;
+    }
+
+    const QGpgME::Protocol *protocol = nullptr;
+    if (protocolContentType == QLatin1String("application/pkcs7-signature") ||
+            protocolContentType == QLatin1String("application/x-pkcs7-signature")) {
+        protocol = QGpgME::smime();
+    } else if (protocolContentType == QLatin1String("application/pgp-signature") ||
+               protocolContentType == QLatin1String("application/x-pgp-signature")) {
+        protocol = QGpgME::openpgp();
+    }
+
+    if (!protocol) {
+        return MessagePart::Ptr(new MimeMessagePart(part.objectTreeParser(), signedData, false));
+    }
+
+    part.nodeHelper()->setNodeProcessed(signature, true);
+
+    part.nodeHelper()->setSignatureState(node, KMMsgFullySigned);
+
+    const QByteArray cleartext = KMime::LFtoCRLF(signedData->encodedContent());
+    const QTextCodec *aCodec(part.objectTreeParser()->codecFor(signedData));
+
+    SignedMessagePart::Ptr mp(new SignedMessagePart(part.objectTreeParser(),
+                              aCodec->toUnicode(cleartext), protocol,
+                              part.nodeHelper()->fromAsString(node), signature));
+    PartMetaData *messagePart(mp->partMetaData());
+
+    if (protocol) {
+        mp->startVerificationDetached(cleartext, signedData, signature->decodedContent());
+    } else {
+        messagePart->auditLogError = GpgME::Error(GPG_ERR_NOT_IMPLEMENTED);
+    }
+
+    return mp;
+}