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/*
* Copyright (C) 2021-2022 Igalia S.L. All rights reserved.
* Copyright (C) 2022 Metrological Group B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "GStreamerDtlsTransportBackend.h"
#if ENABLE(WEB_RTC) && USE(GSTREAMER_WEBRTC)
#include "GStreamerIceTransportBackend.h"
#include "GStreamerWebRTCUtils.h"
#include <JavaScriptCore/ArrayBuffer.h>
#include <wtf/glib/GUniquePtr.h>
namespace WebCore {
GStreamerDtlsTransportBackend::GStreamerDtlsTransportBackend(const GRefPtr<GstWebRTCDTLSTransport>& transport)
: m_backend(transport)
{
ASSERT(m_backend);
ASSERT(isMainThread());
}
GStreamerDtlsTransportBackend::~GStreamerDtlsTransportBackend()
{
unregisterClient();
}
UniqueRef<RTCIceTransportBackend> GStreamerDtlsTransportBackend::iceTransportBackend()
{
return makeUniqueRef<GStreamerIceTransportBackend>(m_backend);
}
void GStreamerDtlsTransportBackend::registerClient(Client& client)
{
ASSERT(!m_client);
m_client = client;
g_signal_connect_swapped(m_backend.get(), "notify::state", G_CALLBACK(+[](GStreamerDtlsTransportBackend* backend) {
backend->stateChanged();
}), this);
}
void GStreamerDtlsTransportBackend::unregisterClient()
{
g_signal_handlers_disconnect_by_data(m_backend.get(), this);
m_client.clear();
}
void GStreamerDtlsTransportBackend::stateChanged() const
{
callOnMainThreadAndWait([weakThis = WeakPtr { this }] {
if (!weakThis)
return;
if (!weakThis->m_client)
return;
GUniqueOutPtr<char> remoteCertificate;
GUniqueOutPtr<char> certificate;
GstWebRTCDTLSTransportState state;
g_object_get(weakThis->m_backend.get(), "state", &state, "remote-certificate", &remoteCertificate.outPtr(), "certificate", &certificate.outPtr(), nullptr);
Vector<Ref<JSC::ArrayBuffer>> certificates;
certificates.reserveInitialCapacity(2);
if (remoteCertificate) {
auto remoteCertificateString = makeString(remoteCertificate.get());
auto jsRemoteCertificate = JSC::ArrayBuffer::create(remoteCertificateString.characters8(), remoteCertificateString.sizeInBytes());
certificates.uncheckedAppend(WTFMove(jsRemoteCertificate));
auto certificateString = makeString(certificate.get());
auto jsCertificate = JSC::ArrayBuffer::create(certificateString.characters8(), certificateString.sizeInBytes());
certificates.uncheckedAppend(WTFMove(jsCertificate));
}
weakThis->m_client->onStateChanged(toRTCDtlsTransportState(state), WTFMove(certificates));
});
}
} // namespace WebCore
#endif // ENABLE(WEB_RTC) && USE(GSTREAMER_WEBRTC)
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