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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "LibWebRTCResolver.h"
#if USE(LIBWEBRTC)
#include "LibWebRTCNetwork.h"
#include "Logging.h"
#include "NetworkProcessConnection.h"
#include "NetworkRTCProviderMessages.h"
#include "WebProcess.h"
#include <wtf/MainThread.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
WTF_MAKE_TZONE_ALLOCATED_IMPL(LibWebRTCResolver);
void LibWebRTCResolver::sendOnMainThread(Function<void(IPC::Connection&)>&& callback)
{
callOnMainRunLoop([callback = WTFMove(callback)]() {
Ref networkProcessConnection = WebProcess::singleton().ensureNetworkProcessConnection().connection();
callback(networkProcessConnection);
});
}
LibWebRTCResolver::~LibWebRTCResolver()
{
WebProcess::singleton().libWebRTCNetwork().socketFactory().removeResolver(identifier());
sendOnMainThread([identifier = this->identifier()](IPC::Connection& connection) {
connection.send(Messages::NetworkRTCProvider::StopResolver(identifier), 0);
});
}
void LibWebRTCResolver::start(const rtc::SocketAddress& address, Function<void()>&& callback)
{
ASSERT(!m_callback);
m_callback = WTFMove(callback);
m_addressToResolve = address;
m_port = address.port();
auto addressString = address.HostAsURIString();
String name { std::span { addressString } };
if (name.endsWithIgnoringASCIICase(".local"_s) && !WTF::isVersion4UUID(StringView { name }.left(name.length() - 6))) {
RELEASE_LOG_ERROR(WebRTC, "mDNS candidate is not a Version 4 UUID");
setError(-1);
return;
}
sendOnMainThread([identifier = this->identifier(), name = WTFMove(name).isolatedCopy()](IPC::Connection& connection) {
connection.send(Messages::NetworkRTCProvider::CreateResolver(identifier, name), 0);
});
}
const webrtc::AsyncDnsResolverResult& LibWebRTCResolver::result() const
{
return *this;
}
bool LibWebRTCResolver::GetResolvedAddress(int family, rtc::SocketAddress* address) const
{
ASSERT(address);
if (m_error || !m_addresses.size())
return false;
*address = m_addressToResolve;
for (auto& ipAddress : m_addresses) {
if (family == ipAddress.family()) {
address->SetResolvedIP(ipAddress);
address->SetPort(m_port);
return true;
}
}
return false;
}
void LibWebRTCResolver::setResolvedAddress(Vector<rtc::IPAddress>&& addresses)
{
m_addresses = WTFMove(addresses);
m_callback();
}
void LibWebRTCResolver::setError(int error)
{
m_error = error;
m_callback();
}
} // namespace WebKit
#endif // USE(LIBWEBRTC)
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