File indexing completed on 2024-06-23 05:18:32

 /*
   SPDX-FileCopyrightText: 2009 Klaralvdalens Datakonsult AB, a KDAB Group company, info@kdab.net
   SPDX-FileCopyrightText: 2009 Leo Franchi <lfranchi@kde.org>
 
   SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include <config-messagelib.h>
 
 #include "job/encryptjob.h"
 
 #include "contentjobbase_p.h"
 #include "job/protectedheadersjob.h"
 #include "utils/util_p.h"
 
 #include <QGpgME/EncryptJob>
 #include <QGpgME/Protocol>
 
 #include "messagecomposer_debug.h"
 
 #include <gpgme++/encryptionresult.h>
 #include <gpgme++/global.h>
 #include <gpgme++/signingresult.h>
 #include <sstream>
 
 using namespace MessageComposer;
 
 class MessageComposer::EncryptJobPrivate : public ContentJobBasePrivate
 {
 public:
     EncryptJobPrivate(EncryptJob *qq)
         : ContentJobBasePrivate(qq)
     {
     }
 
     QString gnupgHome;
     QStringList recipients;
     std::vector<GpgME::Key> keys;
     Kleo::CryptoMessageFormat format;
     KMime::Content *content = nullptr;
     KMime::Message *skeletonMessage = nullptr;
 
     bool protectedHeaders = true;
     bool protectedHeadersObvoscate = false;
 
     // copied from messagecomposer.cpp
     bool binaryHint(Kleo::CryptoMessageFormat f)
     {
         switch (f) {
         case Kleo::SMIMEFormat:
         case Kleo::SMIMEOpaqueFormat:
             return true;
         default:
         case Kleo::OpenPGPMIMEFormat:
         case Kleo::InlineOpenPGPFormat:
             return false;
         }
     }
 
     GpgME::SignatureMode signingMode(Kleo::CryptoMessageFormat f)
     {
         switch (f) {
         case Kleo::SMIMEOpaqueFormat:
             return GpgME::NormalSignatureMode;
         case Kleo::InlineOpenPGPFormat:
             return GpgME::Clearsigned;
         default:
         case Kleo::SMIMEFormat:
         case Kleo::OpenPGPMIMEFormat:
             return GpgME::Detached;
         }
     }
 
     Q_DECLARE_PUBLIC(EncryptJob)
 };
 
 EncryptJob::EncryptJob(QObject *parent)
     : ContentJobBase(*new EncryptJobPrivate(this), parent)
 {
 }
 
 EncryptJob::~EncryptJob() = default;
 
 void EncryptJob::setContent(KMime::Content *content)
 {
     Q_D(EncryptJob);
 
     d->content = content;
     d->content->assemble();
 }
 
 void EncryptJob::setCryptoMessageFormat(Kleo::CryptoMessageFormat format)
 {
     Q_D(EncryptJob);
 
     d->format = format;
 }
 
 void EncryptJob::setEncryptionKeys(const std::vector<GpgME::Key> &keys)
 {
     Q_D(EncryptJob);
 
     d->keys = keys;
 }
 
 void EncryptJob::setRecipients(const QStringList &recipients)
 {
     Q_D(EncryptJob);
 
     d->recipients = recipients;
 }
 
 void EncryptJob::setSkeletonMessage(KMime::Message *skeletonMessage)
 {
     Q_D(EncryptJob);
 
     d->skeletonMessage = skeletonMessage;
 }
 
 void EncryptJob::setProtectedHeaders(bool protectedHeaders)
 {
     Q_D(EncryptJob);
 
     d->protectedHeaders = protectedHeaders;
 }
 
 void EncryptJob::setProtectedHeadersObvoscate(bool protectedHeadersObvoscate)
 {
     Q_D(EncryptJob);
 
     d->protectedHeadersObvoscate = protectedHeadersObvoscate;
 }
 
 void EncryptJob::setGnupgHome(const QString &path)
 {
     Q_D(EncryptJob);
 
     d->gnupgHome = path;
 }
 
 QStringList EncryptJob::recipients() const
 {
     Q_D(const EncryptJob);
 
     return d->recipients;
 }
 
 std::vector<GpgME::Key> EncryptJob::encryptionKeys() const
 {
     Q_D(const EncryptJob);
 
     return d->keys;
 }
 
 void EncryptJob::doStart()
 {
     Q_D(EncryptJob);
     Q_ASSERT(d->resultContent == nullptr); // Not processed before.
 
     if (d->keys.size() == 0) { // should not happen---resolver should have dealt with it earlier
         qCDebug(MESSAGECOMPOSER_LOG) << "HELP! Encrypt job but have no keys to encrypt with.";
         return;
     }
 
     // if setContent hasn't been called, we assume that a subjob was added
     // and we want to use that
     if (!d->content || !d->content->hasContent()) {
         if (d->subjobContents.size() == 1) {
             d->content = d->subjobContents.constFirst();
         }
     }
 
     if (d->protectedHeaders && d->skeletonMessage && d->format & Kleo::OpenPGPMIMEFormat) {
         auto pJob = new ProtectedHeadersJob;
         pJob->setContent(d->content);
         pJob->setSkeletonMessage(d->skeletonMessage);
         pJob->setObvoscate(d->protectedHeadersObvoscate);
         QObject::connect(pJob, &ProtectedHeadersJob::finished, this, [d, pJob](KJob *job) {
             if (job->error()) {
                 return;
             }
             d->content = pJob->content();
         });
         appendSubjob(pJob);
     }
 
     ContentJobBase::doStart();
 }
 
 void EncryptJob::slotResult(KJob *job)
 {
     // Q_D(EncryptJob);
     if (error() || job->error()) {
         ContentJobBase::slotResult(job);
         return;
     }
     if (subjobs().size() == 2) {
         auto pjob = static_cast<ProtectedHeadersJob *>(subjobs().last());
         if (pjob) {
             auto cjob = qobject_cast<ContentJobBase *>(job);
             Q_ASSERT(cjob);
             pjob->setContent(cjob->content());
         }
     }
 
     ContentJobBase::slotResult(job);
 }
 
 void EncryptJob::process()
 {
     Q_D(EncryptJob);
 
     // if setContent hasn't been called, we assume that a subjob was added
     // and we want to use that
     if (!d->content || !d->content->hasContent()) {
         Q_ASSERT(d->subjobContents.size() == 1);
         d->content = d->subjobContents.constFirst();
     }
 
     const QGpgME::Protocol *proto = nullptr;
     if (d->format & Kleo::AnyOpenPGP) {
         proto = QGpgME::openpgp();
     } else if (d->format & Kleo::AnySMIME) {
         proto = QGpgME::smime();
     } else {
         qCDebug(MESSAGECOMPOSER_LOG) << "HELP! Encrypt job but have protocol to encrypt with.";
         return;
     }
 
     Q_ASSERT(proto);
 
     // for now just do the main recipients
     QByteArray content;
     d->content->assemble();
     if (d->format & Kleo::InlineOpenPGPFormat) {
         content = d->content->body();
     } else {
         content = d->content->encodedContent();
     }
 
     qCDebug(MESSAGECOMPOSER_LOG) << "got backend, starting job";
     QGpgME::EncryptJob *eJob = proto->encryptJob(!d->binaryHint(d->format), d->format == Kleo::InlineOpenPGPFormat);
 #if QGPGME_SUPPORTS_ENCRYPTION_JOB_SET_INPUT_ENCODING
     if (!(d->format & Kleo::InlineOpenPGPFormat)) {
         eJob->setInputEncoding(GpgME::Data::MimeEncoding);
     }
 #endif
 
     if (!d->gnupgHome.isEmpty()) {
         QGpgME::Job::context(eJob)->setEngineHomeDirectory(d->gnupgHome.toUtf8().constData());
     }
 
     QObject::connect(
         eJob,
         &QGpgME::EncryptJob::result,
         this,
         [this, d](const GpgME::EncryptionResult &result, const QByteArray &cipherText, const QString &auditLogAsHtml, const GpgME::Error &auditLogError) {
             Q_UNUSED(auditLogAsHtml)
             Q_UNUSED(auditLogError)
             if (result.error()) {
                 setError(result.error().code());
                 setErrorText(QString::fromLocal8Bit(result.error().asString()));
                 emitResult();
                 return;
             }
             d->resultContent = MessageComposer::Util::composeHeadersAndBody(d->content, cipherText, d->format, false);
 
             emitResult();
         });
 
     const auto error = eJob->start(d->keys, content, true);
     if (error.code()) {
         eJob->deleteLater();
         setError(error.code());
         setErrorText(QString::fromLocal8Bit(error.asString()));
         emitResult();
     }
 }
 
 #include "moc_encryptjob.cpp"