Implement XEP-0448: Encryption for stateless file sharing parsing (#463)

https://xmpp.org/extensions/xep-0448.html

Co-authored-by: Jonah Brüchert <jbb@kaidan.im>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/base/QXmppEncryptedFileSource_p.h b/src/base/QXmppEncryptedFileSource_p.h
new file mode 100644
index 00000000..21270de2
--- /dev/null
+++ b/src/base/QXmppEncryptedFileSource_p.h
@@ -0,0 +1,59 @@
+// SPDX-FileCopyrightText: 2022 Linus Jahn <lnj@kaidan.im>
+// SPDX-FileCopyrightText: 2022 Jonah Brüchert <jbb@kaidan.im>
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#ifndef QXMPPENCRYPTEDFILESOURCE_H
+#define QXMPPENCRYPTEDFILESOURCE_H
+
+#include "QXmppGlobal.h"
+#include "QXmppHash.h"
+#include "QXmppHttpFileSource.h"
+
+#include <QSharedDataPointer>
+#include <QUrl>
+#include <QVector>
+
+class QXmppEncryptedFileSourcePrivate;
+
+// exported for tests
+class QXMPP_EXPORT QXmppEncryptedFileSource
+{
+public:
+    enum Cipher {
+        Aes128GcmNopadding,
+        Aes256GcmNopadding,
+        Aes256CbcPkcs7,
+    };
+
+    QXmppEncryptedFileSource();
+
+    Cipher cipher() const;
+    void setCipher(Cipher newCipher);
+
+    const QByteArray &key() const;
+    void setKey(const QByteArray &newKey);
+
+    const QByteArray &iv() const;
+    void setIv(const QByteArray &newIv);
+
+    const QVector<QXmppHash> &hashes() const;
+    void setHashes(const QVector<QXmppHash> &newHashes);
+
+    const QVector<QXmppHttpFileSource> &httpSources() const;
+    void setHttpSources(const QVector<QXmppHttpFileSource> &newHttpSources);
+
+    /// \cond
+    bool parse(const QDomElement &el);
+    void toXml(QXmlStreamWriter *writer) const;
+    /// \endcond
+
+private:
+    Cipher m_cipher = Aes128GcmNopadding;
+    QByteArray m_key;
+    QByteArray m_iv;
+    QVector<QXmppHash> m_hashes;
+    QVector<QXmppHttpFileSource> m_httpSources;
+};
+
+#endif  // QXMPPENCRYPTEDFILESOURCE_H