Implement XEP-0300: Use of Cryptographic Hash Functions in XMPP

Parsing and serialization for XEP-0300
https://xmpp.org/extensions/xep-0300.html in version 1.0.

1 files changed, 75 insertions, 0 deletions

diff --git a/src/base/QXmppHash.h b/src/base/QXmppHash.h
new file mode 100644
index 00000000..96293f80
--- /dev/null
+++ b/src/base/QXmppHash.h
@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: 2022 Linus Jahn <lnj@kaidan.im>
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#ifndef QXMPPHASH_H
+#define QXMPPHASH_H
+
+#include "QXmppGlobal.h"
+
+#include <QByteArray>
+
+class QDomElement;
+class QXmlStreamWriter;
+
+namespace QXmpp {
+
+enum class HashAlgorithm : uint32_t {
+    Unknown,
+    Md2,
+    Md5,
+    Shake128,
+    Shake256,
+    Sha1,
+    Sha224,
+    Sha256,
+    Sha384,
+    Sha512,
+    Sha3_256,
+    Sha3_512,
+    Blake2b_256,
+    Blake2b_512,
+};
+
+}
+
+class QXMPP_EXPORT QXmppHash
+{
+public:
+    QXmppHash();
+
+    /// \cond
+    bool parse(const QDomElement &el);
+    void toXml(QXmlStreamWriter *writer) const;
+    /// \endcond
+
+    QXmpp::HashAlgorithm algorithm() const;
+    void setAlgorithm(QXmpp::HashAlgorithm algorithm);
+
+    QByteArray hash() const;
+    void setHash(const QByteArray &data);
+
+private:
+    QXmpp::HashAlgorithm m_algorithm = QXmpp::HashAlgorithm::Unknown;
+    QByteArray m_hash;
+};
+
+class QXMPP_EXPORT QXmppHashUsed
+{
+public:
+    QXmppHashUsed();
+    QXmppHashUsed(QXmpp::HashAlgorithm algorithm);
+
+    /// \cond
+    bool parse(const QDomElement &el);
+    void toXml(QXmlStreamWriter *writer) const;
+    /// \endcond
+
+    QXmpp::HashAlgorithm algorithm() const;
+    void setAlgorithm(QXmpp::HashAlgorithm algorithm);
+
+private:
+    QXmpp::HashAlgorithm m_algorithm = QXmpp::HashAlgorithm::Unknown;
+};
+
+#endif  // QXMPPHASH_H