Rate limit olm session creation

This commit is contained in:
Nicolas Werner 2021-07-30 03:31:29 +02:00
parent d955444dc1
commit 6409462a96
No known key found for this signature in database
GPG key ID: C8D75E610773F2D9

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@ -1138,9 +1138,23 @@ send_encrypted_to_device_messages(const std::map<std::string, std::vector<std::s
auto session = cache::getLatestOlmSession(device_curve);
if (!session || force_new_session) {
claims.one_time_keys[user][device] = mtx::crypto::SIGNED_CURVE25519;
pks[user][device].ed25519 = d.keys.at("ed25519:" + device);
pks[user][device].curve25519 = d.keys.at("curve25519:" + device);
static QMap<QPair<std::string, std::string>, qint64> rateLimit;
auto currentTime = QDateTime::currentSecsSinceEpoch();
if (rateLimit.value(QPair(user, device)) + 60 * 60 * 10 <
currentTime) {
claims.one_time_keys[user][device] =
mtx::crypto::SIGNED_CURVE25519;
pks[user][device].ed25519 = d.keys.at("ed25519:" + device);
pks[user][device].curve25519 =
d.keys.at("curve25519:" + device);
rateLimit.insert(QPair(user, device), currentTime);
} else {
nhlog::crypto()->warn("Not creating new session with {}:{} "
"because of rate limit",
user,
device);
}
continue;
}