| /* |
| * 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 "NetworkRTCResolverCocoa.h" |
| |
| #if USE(LIBWEBRTC) |
| |
| #include <wtf/Expected.h> |
| |
| namespace WebKit { |
| |
| static void resolvedName(CFHostRef hostRef, CFHostInfoType typeInfo, const CFStreamError *error, void *info) |
| { |
| ASSERT_UNUSED(typeInfo, !typeInfo); |
| |
| ASSERT(info); |
| auto* resolver = static_cast<NetworkRTCResolverCocoa*>(info); |
| |
| if (error->domain) { |
| // FIXME: Need to handle failure, but info is not provided in the callback. |
| resolver->completed(makeUnexpected(WebCore::DNSError::Unknown)); |
| return; |
| } |
| |
| Boolean result; |
| CFArrayRef resolvedAddresses = (CFArrayRef)CFHostGetAddressing(hostRef, &result); |
| ASSERT_UNUSED(result, result); |
| |
| size_t count = CFArrayGetCount(resolvedAddresses); |
| Vector<WebCore::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)); |
| if (address->sin_family == AF_INET) |
| addresses.uncheckedAppend(WebCore::IPAddress(*address)); |
| // FIXME: We should probably return AF_INET6 addresses as well. |
| } |
| if (addresses.isEmpty()) { |
| resolver->completed(makeUnexpected(WebCore::DNSError::CannotResolve)); |
| return; |
| } |
| resolver->completed(WTFMove(addresses)); |
| } |
| |
| std::unique_ptr<NetworkRTCResolver> NetworkRTCResolver::create(uint64_t identifier, WebCore::DNSCompletionHandler&& completionHandler) |
| { |
| return std::unique_ptr<NetworkRTCResolver>(new NetworkRTCResolverCocoa(identifier, WTFMove(completionHandler))); |
| } |
| |
| NetworkRTCResolverCocoa::NetworkRTCResolverCocoa(uint64_t identifier, WebCore::DNSCompletionHandler&& completionHandler) |
| : NetworkRTCResolver(identifier, WTFMove(completionHandler)) |
| { |
| } |
| |
| NetworkRTCResolverCocoa::~NetworkRTCResolverCocoa() |
| { |
| CFHostUnscheduleFromRunLoop(m_host.get(), CFRunLoopGetCurrent(), kCFRunLoopDefaultMode); |
| CFHostSetClient(m_host.get(), nullptr, nullptr); |
| } |
| |
| void NetworkRTCResolverCocoa::start(const String& address) |
| { |
| m_host = adoptCF(CFHostCreateWithName(kCFAllocatorDefault, address.createCFString().get())); |
| CFHostClientContext context = { 0, this, nullptr, nullptr, nullptr }; |
| CFHostSetClient(m_host.get(), resolvedName, &context); |
| CFHostScheduleWithRunLoop(m_host.get(), CFRunLoopGetCurrent(), kCFRunLoopDefaultMode); |
| Boolean result = CFHostStartInfoResolution(m_host.get(), kCFHostAddresses, nullptr); |
| ASSERT_UNUSED(result, result); |
| } |
| |
| void NetworkRTCResolverCocoa::stop() |
| { |
| CFHostCancelInfoResolution(m_host.get(), CFHostInfoType::kCFHostAddresses); |
| if (auto completionHandler = WTFMove(m_completionHandler)) |
| completionHandler(makeUnexpected(WebCore::DNSError::Cancelled)); |
| } |
| |
| void NetworkRTCResolverCocoa::completed(WebCore::DNSAddressesOrError&& addressesOrError) |
| { |
| if (auto completionHandler = WTFMove(m_completionHandler)) |
| completionHandler(WTFMove(addressesOrError)); |
| } |
| |
| } // namespace WebKit |
| |
| #endif // USE(LIBWEBRTC) |