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system_network_context_manager.cc
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system_network_context_manager.cc
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// Copyright (c) 2018 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/net/system_network_context_manager.h"
#include <string>
#include <utility>
#include "atom/browser/atom_browser_client.h"
#include "atom/browser/io_thread.h"
#include "atom/common/application_info.h"
#include "atom/common/options_switches.h"
#include "base/command_line.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/net/chrome_mojo_proxy_resolver_factory.h"
#include "components/net_log/net_export_file_writer.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/common/content_features.h"
#include "content/public/common/service_names.mojom.h"
#include "mojo/public/cpp/bindings/associated_interface_ptr.h"
#include "net/net_buildflags.h"
#include "services/network/network_service.h"
#include "services/network/public/cpp/cross_thread_shared_url_loader_factory_info.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "url/gurl.h"
namespace {
// The global instance of the SystemNetworkContextmanager.
SystemNetworkContextManager* g_system_network_context_manager = nullptr;
network::mojom::HttpAuthStaticParamsPtr CreateHttpAuthStaticParams() {
network::mojom::HttpAuthStaticParamsPtr auth_static_params =
network::mojom::HttpAuthStaticParams::New();
auth_static_params->supported_schemes = {"basic", "digest", "ntlm",
"negotiate"};
return auth_static_params;
}
network::mojom::HttpAuthDynamicParamsPtr CreateHttpAuthDynamicParams() {
auto* command_line = base::CommandLine::ForCurrentProcess();
network::mojom::HttpAuthDynamicParamsPtr auth_dynamic_params =
network::mojom::HttpAuthDynamicParams::New();
auth_dynamic_params->server_whitelist =
command_line->GetSwitchValueASCII(atom::switches::kAuthServerWhitelist);
auth_dynamic_params->delegate_whitelist = command_line->GetSwitchValueASCII(
atom::switches::kAuthNegotiateDelegateWhitelist);
return auth_dynamic_params;
}
} // namespace
// SharedURLLoaderFactory backed by a SystemNetworkContextManager and its
// network context. Transparently handles crashes.
class SystemNetworkContextManager::URLLoaderFactoryForSystem
: public network::SharedURLLoaderFactory {
public:
explicit URLLoaderFactoryForSystem(SystemNetworkContextManager* manager)
: manager_(manager) {
DETACH_FROM_SEQUENCE(sequence_checker_);
}
// mojom::URLLoaderFactory implementation:
void CreateLoaderAndStart(network::mojom::URLLoaderRequest request,
int32_t routing_id,
int32_t request_id,
uint32_t options,
const network::ResourceRequest& url_request,
network::mojom::URLLoaderClientPtr client,
const net::MutableNetworkTrafficAnnotationTag&
traffic_annotation) override {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!manager_)
return;
manager_->GetURLLoaderFactory()->CreateLoaderAndStart(
std::move(request), routing_id, request_id, options, url_request,
std::move(client), traffic_annotation);
}
void Clone(network::mojom::URLLoaderFactoryRequest request) override {
if (!manager_)
return;
manager_->GetURLLoaderFactory()->Clone(std::move(request));
}
// SharedURLLoaderFactory implementation:
std::unique_ptr<network::SharedURLLoaderFactoryInfo> Clone() override {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
return std::make_unique<network::CrossThreadSharedURLLoaderFactoryInfo>(
this);
}
void Shutdown() { manager_ = nullptr; }
private:
friend class base::RefCounted<URLLoaderFactoryForSystem>;
~URLLoaderFactoryForSystem() override {}
SEQUENCE_CHECKER(sequence_checker_);
SystemNetworkContextManager* manager_;
DISALLOW_COPY_AND_ASSIGN(URLLoaderFactoryForSystem);
};
network::mojom::NetworkContext* SystemNetworkContextManager::GetContext() {
if (!base::FeatureList::IsEnabled(network::features::kNetworkService)) {
// SetUp should already have been called.
DCHECK(io_thread_network_context_);
return io_thread_network_context_.get();
}
if (!network_service_network_context_ ||
network_service_network_context_.encountered_error()) {
// This should call into OnNetworkServiceCreated(), which will re-create
// the network service, if needed. There's a chance that it won't be
// invoked, if the NetworkContext has encountered an error but the
// NetworkService has not yet noticed its pipe was closed. In that case,
// trying to create a new NetworkContext would fail, anyways, and hopefully
// a new NetworkContext will be created on the next GetContext() call.
content::GetNetworkService();
DCHECK(network_service_network_context_);
}
return network_service_network_context_.get();
}
network::mojom::URLLoaderFactory*
SystemNetworkContextManager::GetURLLoaderFactory() {
// Create the URLLoaderFactory as needed.
if (url_loader_factory_ && !url_loader_factory_.encountered_error()) {
return url_loader_factory_.get();
}
network::mojom::URLLoaderFactoryParamsPtr params =
network::mojom::URLLoaderFactoryParams::New();
params->process_id = network::mojom::kBrowserProcessId;
params->is_corb_enabled = false;
GetContext()->CreateURLLoaderFactory(mojo::MakeRequest(&url_loader_factory_),
std::move(params));
return url_loader_factory_.get();
}
scoped_refptr<network::SharedURLLoaderFactory>
SystemNetworkContextManager::GetSharedURLLoaderFactory() {
return shared_url_loader_factory_;
}
net_log::NetExportFileWriter*
SystemNetworkContextManager::GetNetExportFileWriter() {
if (!net_export_file_writer_) {
net_export_file_writer_ = std::make_unique<net_log::NetExportFileWriter>();
}
return net_export_file_writer_.get();
}
network::mojom::NetworkContextParamsPtr
SystemNetworkContextManager::CreateDefaultNetworkContextParams() {
network::mojom::NetworkContextParamsPtr network_context_params =
network::mojom::NetworkContextParams::New();
network_context_params->enable_brotli =
base::FeatureList::IsEnabled(features::kBrotliEncoding);
network_context_params->enable_referrers = true;
network_context_params->proxy_resolver_factory =
ChromeMojoProxyResolverFactory::CreateWithStrongBinding().PassInterface();
return network_context_params;
}
void SystemNetworkContextManager::SetUp(
network::mojom::NetworkContextRequest* network_context_request,
network::mojom::NetworkContextParamsPtr* network_context_params,
network::mojom::HttpAuthStaticParamsPtr* http_auth_static_params,
network::mojom::HttpAuthDynamicParamsPtr* http_auth_dynamic_params) {
if (!base::FeatureList::IsEnabled(network::features::kNetworkService)) {
*network_context_request = mojo::MakeRequest(&io_thread_network_context_);
*network_context_params = CreateNetworkContextParams();
} else {
// Just use defaults if the network service is enabled, since
// CreateNetworkContextParams() can only be called once.
*network_context_params = CreateDefaultNetworkContextParams();
}
*http_auth_static_params = CreateHttpAuthStaticParams();
*http_auth_dynamic_params = CreateHttpAuthDynamicParams();
}
// static
SystemNetworkContextManager* SystemNetworkContextManager::CreateInstance(
PrefService* pref_service) {
DCHECK(!g_system_network_context_manager);
g_system_network_context_manager =
new SystemNetworkContextManager(pref_service);
return g_system_network_context_manager;
}
// static
SystemNetworkContextManager* SystemNetworkContextManager::GetInstance() {
return g_system_network_context_manager;
}
// static
void SystemNetworkContextManager::DeleteInstance() {
DCHECK(g_system_network_context_manager);
delete g_system_network_context_manager;
}
SystemNetworkContextManager::SystemNetworkContextManager(
PrefService* pref_service)
: proxy_config_monitor_(pref_service) {
shared_url_loader_factory_ = new URLLoaderFactoryForSystem(this);
}
SystemNetworkContextManager::~SystemNetworkContextManager() {
shared_url_loader_factory_->Shutdown();
}
void SystemNetworkContextManager::OnNetworkServiceCreated(
network::mojom::NetworkService* network_service) {
if (!base::FeatureList::IsEnabled(network::features::kNetworkService))
return;
network_service->SetUpHttpAuth(CreateHttpAuthStaticParams());
network_service->ConfigureHttpAuthPrefs(CreateHttpAuthDynamicParams());
// The system NetworkContext must be created first, since it sets
// |primary_network_context| to true.
network_service->CreateNetworkContext(
MakeRequest(&network_service_network_context_),
CreateNetworkContextParams());
}
network::mojom::NetworkContextParamsPtr
SystemNetworkContextManager::CreateNetworkContextParams() {
// TODO(mmenke): Set up parameters here (in memory cookie store, etc).
network::mojom::NetworkContextParamsPtr network_context_params =
CreateDefaultNetworkContextParams();
network_context_params->context_name = std::string("system");
network_context_params->user_agent =
atom::AtomBrowserClient::Get()->GetUserAgent();
network_context_params->http_cache_enabled = false;
#if !BUILDFLAG(DISABLE_FTP_SUPPORT)
network_context_params->enable_ftp_url_support = true;
#endif
network_context_params->primary_network_context = true;
proxy_config_monitor_.AddToNetworkContextParams(network_context_params.get());
return network_context_params;
}