1 files changed, 202 insertions, 0 deletions
diff --git a/Source/WebKit2/NetworkProcess/webrtc/NetworkRTCProvider.cpp b/Source/WebKit2/NetworkProcess/webrtc/NetworkRTCProvider.cpp
new file mode 100644
index 000000000..a64f0f2cd
--- /dev/null
+++ b/Source/WebKit2/NetworkProcess/webrtc/NetworkRTCProvider.cpp
@@ -0,0 +1,202 @@
+/*
+ * 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 "NetworkRTCProvider.h"
+
+#if USE(LIBWEBRTC)
+
+#include "NetworkConnectionToWebProcess.h"
+#include "NetworkProcess.h"
+#include "NetworkRTCSocket.h"
+#include "WebRTCResolverMessages.h"
+#include <WebCore/LibWebRTCMacros.h>
+#include <webrtc/base/asyncpacketsocket.h>
+#include <wtf/MainThread.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebKit {
+
+static inline std::unique_ptr<rtc::Thread> createThread()
+{
+    auto thread = rtc::Thread::CreateWithSocketServer();
+    auto result = thread->Start();
+    ASSERT_UNUSED(result, result);
+    // FIXME: Set thread name.
+    return thread;
+}
+
+NetworkRTCProvider::NetworkRTCProvider(NetworkConnectionToWebProcess& connection)
+    : m_connection(&connection)
+    , m_rtcMonitor(*this)
+    , m_rtcNetworkThread(createThread())
+    , m_packetSocketFactory(makeUniqueRef<rtc::BasicPacketSocketFactory>(m_rtcNetworkThread.get()))
+{
+}
+
+void NetworkRTCProvider::close()
+{
+    m_connection = nullptr;
+    m_resolvers.clear();
+    m_rtcMonitor.stopUpdating();
+
+    callOnRTCNetworkThread([this]() {
+        m_sockets.clear();
+    });
+}
+
+void NetworkRTCProvider::createUDPSocket(uint64_t identifier, const RTCNetwork::SocketAddress& address, uint16_t minPort, uint16_t maxPort)
+{
+    callOnRTCNetworkThread([this, identifier, address = RTCNetwork::isolatedCopy(address.value), minPort, maxPort]() {
+        std::unique_ptr<rtc::AsyncPacketSocket> socket(m_packetSocketFactory->CreateUdpSocket(address, minPort, maxPort));
+        addSocket(identifier, std::make_unique<LibWebRTCSocketClient>(identifier, *this, WTFMove(socket), LibWebRTCSocketClient::Type::UDP));
+    });
+}
+
+void NetworkRTCProvider::createServerTCPSocket(uint64_t identifier, const RTCNetwork::SocketAddress& address, uint16_t minPort, uint16_t maxPort, int options)
+{
+    callOnRTCNetworkThread([this, identifier, address = RTCNetwork::isolatedCopy(address.value), minPort, maxPort, options]() {
+        std::unique_ptr<rtc::AsyncPacketSocket> socket(m_packetSocketFactory->CreateServerTcpSocket(address, minPort, maxPort, options));
+        addSocket(identifier, std::make_unique<LibWebRTCSocketClient>(identifier, *this, WTFMove(socket), LibWebRTCSocketClient::Type::ServerTCP));
+    });
+}
+
+void NetworkRTCProvider::createClientTCPSocket(uint64_t identifier, const RTCNetwork::SocketAddress& localAddress, const RTCNetwork::SocketAddress& remoteAddress, int options)
+{
+    callOnRTCNetworkThread([this, identifier, localAddress = RTCNetwork::isolatedCopy(localAddress.value), remoteAddress = RTCNetwork::isolatedCopy(remoteAddress.value), options]() {
+        std::unique_ptr<rtc::AsyncPacketSocket> socket(m_packetSocketFactory->CreateClientTcpSocket(localAddress, remoteAddress, { }, { }, options));
+        addSocket(identifier, std::make_unique<LibWebRTCSocketClient>(identifier, *this, WTFMove(socket), LibWebRTCSocketClient::Type::ClientTCP));
+    });
+}
+
+void NetworkRTCProvider::addSocket(uint64_t identifier, std::unique_ptr<LibWebRTCSocketClient>&& socket)
+{
+    m_sockets.add(identifier, WTFMove(socket));
+}
+
+std::unique_ptr<LibWebRTCSocketClient> NetworkRTCProvider::takeSocket(uint64_t identifier)
+{
+    return m_sockets.take(identifier);
+}
+
+void NetworkRTCProvider::didReceiveNetworkRTCSocketMessage(IPC::Connection& connection, IPC::Decoder& decoder)
+{
+    NetworkRTCSocket(decoder.destinationID(), *this).didReceiveMessage(connection, decoder);
+}
+
+void NetworkRTCProvider::createResolver(uint64_t identifier, const String& address)
+{
+    CFHostRef host = CFHostCreateWithName(kCFAllocatorDefault, address.createCFString().get());
+    ASSERT(host);
+
+    auto resolver = std::make_unique<Resolver>(identifier, *this, host);
+
+    CFHostClientContext context = { 0, resolver.get(), nullptr, nullptr, nullptr };
+    CFHostSetClient(host, NetworkRTCProvider::resolvedName, &context);
+    CFHostScheduleWithRunLoop(host, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+    Boolean result = CFHostStartInfoResolution(host, kCFHostAddresses, nullptr);
+    ASSERT_UNUSED(result, result);
+
+    m_resolvers.add(identifier, WTFMove(resolver));
+}
+
+void NetworkRTCProvider::stopResolver(uint64_t identifier)
+{
+    auto resolver = m_resolvers.take(identifier);
+    if (resolver)
+        CFHostCancelInfoResolution(resolver->host, CFHostInfoType::kCFHostAddresses);
+}
+
+void NetworkRTCProvider::resolvedName(CFHostRef hostRef, CFHostInfoType typeInfo, const CFStreamError *error, void *info)
+{
+    ASSERT_UNUSED(typeInfo, !typeInfo);
+
+    if (error->domain) {
+        // FIXME: Need to handle failure, but info is not provided in the callback.
+        return;
+    }
+
+    ASSERT(info);
+    auto* resolverInfo = static_cast<Resolver*>(info);
+    auto resolver = resolverInfo->rtcProvider.m_resolvers.take(resolverInfo->identifier);
+    if (!resolver)
+        return;
+
+    Boolean result;
+    CFArrayRef resolvedAddresses = (CFArrayRef)CFHostGetAddressing(hostRef, &result);
+    ASSERT_UNUSED(result, result);
+
+    size_t count = CFArrayGetCount(resolvedAddresses);
+    Vector<RTCNetwork::IPAddress> addresses;
+    addresses.reserveInitialCapacity(count);
+
+    for (size_t index = 0; index < count; ++index) {
+        CFDataRef data = (CFDataRef)CFArrayGetValueAtIndex(resolvedAddresses, index);
+        auto* address = reinterpret_cast<const struct sockaddr_in*>(CFDataGetBytePtr(data));
+        addresses.uncheckedAppend(RTCNetwork::IPAddress(rtc::IPAddress(address->sin_addr)));
+    }
+    ASSERT(resolver->rtcProvider.m_connection);
+    resolver->rtcProvider.m_connection->connection().send(Messages::WebRTCResolver::SetResolvedAddress(addresses), resolver->identifier);
+}
+
+struct NetworkMessageData : public rtc::MessageData {
+    NetworkMessageData(Ref<NetworkRTCProvider>&& rtcProvider, Function<void()>&& callback)
+        : rtcProvider(WTFMove(rtcProvider))
+        , callback(WTFMove(callback))
+    { }
+    Ref<NetworkRTCProvider> rtcProvider;
+    Function<void()> callback;
+};
+
+void NetworkRTCProvider::OnMessage(rtc::Message* message)
+{
+    ASSERT(message->message_id == 1);
+    static_cast<NetworkMessageData*>(message->pdata)->callback();
+}
+
+void NetworkRTCProvider::callOnRTCNetworkThread(Function<void()>&& callback)
+{
+    m_rtcNetworkThread->Post(RTC_FROM_HERE, this, 1, new NetworkMessageData(*this, WTFMove(callback)));
+}
+
+void NetworkRTCProvider::callSocket(uint64_t identifier, Function<void(LibWebRTCSocketClient&)>&& callback)
+{
+    callOnRTCNetworkThread([this, identifier, callback = WTFMove(callback)]() {
+        if (auto* socket = m_sockets.get(identifier))
+            callback(*socket);
+    });
+}
+
+void NetworkRTCProvider::sendFromMainThread(Function<void(IPC::Connection&)>&& callback)
+{
+    callOnMainThread([provider = makeRef(*this), callback = WTFMove(callback)]() {
+        if (provider->m_connection)
+            callback(provider->m_connection->connection());
+    });
+}
+
+} // namespace WebKit
+
+#endif // USE(LIBWEBRTC)