mirror of
https://github.com/klzgrad/naiveproxy.git
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89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/dns/dns_client.h"
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#include <utility>
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#include "base/bind.h"
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#include "base/rand_util.h"
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#include "net/dns/address_sorter.h"
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#include "net/dns/dns_config_service.h"
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#include "net/dns/dns_session.h"
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#include "net/dns/dns_socket_pool.h"
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#include "net/dns/dns_transaction.h"
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#include "net/socket/client_socket_factory.h"
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namespace net {
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namespace {
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class DnsClientImpl : public DnsClient {
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public:
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DnsClientImpl(NetLog* net_log,
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ClientSocketFactory* socket_factory,
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const RandIntCallback& rand_int_callback)
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: address_sorter_(AddressSorter::CreateAddressSorter()),
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net_log_(net_log),
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socket_factory_(socket_factory),
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rand_int_callback_(rand_int_callback) {}
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void SetConfig(const DnsConfig& config) override {
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factory_.reset();
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session_ = nullptr;
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if (config.IsValid() && !config.unhandled_options) {
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std::unique_ptr<DnsSocketPool> socket_pool(
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config.randomize_ports
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? DnsSocketPool::CreateDefault(socket_factory_,
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rand_int_callback_)
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: DnsSocketPool::CreateNull(socket_factory_, rand_int_callback_));
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session_ = new DnsSession(config, std::move(socket_pool),
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rand_int_callback_, net_log_);
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factory_ = DnsTransactionFactory::CreateFactory(session_.get());
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}
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}
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const DnsConfig* GetConfig() const override {
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return session_.get() ? &session_->config() : NULL;
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}
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DnsTransactionFactory* GetTransactionFactory() override {
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return session_.get() ? factory_.get() : NULL;
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}
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AddressSorter* GetAddressSorter() override { return address_sorter_.get(); }
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private:
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scoped_refptr<DnsSession> session_;
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std::unique_ptr<DnsTransactionFactory> factory_;
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std::unique_ptr<AddressSorter> address_sorter_;
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NetLog* net_log_;
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ClientSocketFactory* socket_factory_;
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const RandIntCallback rand_int_callback_;
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DISALLOW_COPY_AND_ASSIGN(DnsClientImpl);
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};
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} // namespace
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// static
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std::unique_ptr<DnsClient> DnsClient::CreateClient(NetLog* net_log) {
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return std::make_unique<DnsClientImpl>(
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net_log, ClientSocketFactory::GetDefaultFactory(),
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base::Bind(&base::RandInt));
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}
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// static
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std::unique_ptr<DnsClient> DnsClient::CreateClientForTesting(
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NetLog* net_log,
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ClientSocketFactory* socket_factory,
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const RandIntCallback& rand_int_callback) {
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return std::make_unique<DnsClientImpl>(net_log, socket_factory,
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rand_int_callback);
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}
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} // namespace net
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