1 files changed, 69 insertions, 0 deletions
diff --git a/lib/events/encryptedevent.cpp b/lib/events/encryptedevent.cpp
new file mode 100644
index 00000000..540594d1
--- /dev/null
+++ b/lib/events/encryptedevent.cpp
@@ -0,0 +1,69 @@
+// SPDX-FileCopyrightText: 2019 Alexey Andreyev <aa13q@ya.ru>
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include "encryptedevent.h"
+#include "e2ee/e2ee.h"
+#include "logging.h"
+
+using namespace Quotient;
+
+EncryptedEvent::EncryptedEvent(const QJsonObject& ciphertexts,
+                               const QString& senderKey)
+    : RoomEvent(basicJson(TypeId, { { AlgorithmKeyL, OlmV1Curve25519AesSha2AlgoKey },
+                                    { CiphertextKeyL, ciphertexts },
+                                    { SenderKeyKeyL, senderKey } }))
+{}
+
+EncryptedEvent::EncryptedEvent(const QByteArray& ciphertext,
+                               const QString& senderKey,
+                               const QString& deviceId, const QString& sessionId)
+    : RoomEvent(basicJson(TypeId, { { AlgorithmKeyL, MegolmV1AesSha2AlgoKey },
+                                    { CiphertextKeyL, QString(ciphertext) },
+                                    { DeviceIdKeyL, deviceId },
+                                    { SenderKeyKeyL, senderKey },
+                                    { SessionIdKeyL, sessionId } }))
+{}
+
+EncryptedEvent::EncryptedEvent(const QJsonObject& obj)
+    : RoomEvent(obj)
+{
+    qCDebug(E2EE) << "Encrypted event from" << senderId();
+}
+
+QString EncryptedEvent::algorithm() const
+{
+    const auto algo = contentPart<QString>(AlgorithmKeyL);
+    if (!isSupportedAlgorithm(algo))
+        qWarning(MAIN) << "The EncryptedEvent's algorithm" << algo
+                       << "is not supported";
+
+    return algo;
+}
+
+RoomEventPtr EncryptedEvent::createDecrypted(const QString &decrypted) const
+{
+    auto eventObject = QJsonDocument::fromJson(decrypted.toUtf8()).object();
+    eventObject["event_id"] = id();
+    eventObject["sender"] = senderId();
+    eventObject["origin_server_ts"] = originTimestamp().toMSecsSinceEpoch();
+    if (const auto relatesToJson = contentPart<QJsonObject>("m.relates_to"_ls);
+        !relatesToJson.isEmpty()) {
+        auto content = eventObject["content"].toObject();
+        content["m.relates_to"] = relatesToJson;
+        eventObject["content"] = content;
+    }
+    if (const auto redactsJson = unsignedPart<QString>("redacts"_ls);
+        !redactsJson.isEmpty()) {
+        auto unsign = eventObject["unsigned"].toObject();
+        unsign["redacts"] = redactsJson;
+        eventObject["unsigned"] = unsign;
+    }
+    return loadEvent<RoomEvent>(eventObject);
+}
+
+void EncryptedEvent::setRelation(const QJsonObject& relation)
+{
+    auto content = contentJson();
+    content["m.relates_to"] = relation;
+    editJson()["content"] = content;
+}