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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/net/chrome_mojo_proxy_resolver_factory.h"
#include <utility>
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/no_destructor.h"
#include "base/task/single_thread_task_runner.h"
#include "build/build_config.h"
#include "content/public/browser/child_process_host.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "services/proxy_resolver/public/mojom/proxy_resolver.mojom.h"
#if BUILDFLAG(IS_ANDROID)
#include "services/proxy_resolver/proxy_resolver_factory_impl.h" // nogncheck crbug.com/1125897
#else
#include "content/public/browser/service_process_host.h"
#include "services/strings/grit/services_strings.h"
#endif
namespace {
proxy_resolver::mojom::ProxyResolverFactory* GetProxyResolverFactory() {
static base::NoDestructor<
mojo::Remote<proxy_resolver::mojom::ProxyResolverFactory>>
remote;
if (!remote->is_bound()) {
#if BUILDFLAG(IS_ANDROID)
// For Android we just lazily initialize a single factory instance and keep
// it around forever.
static base::NoDestructor<proxy_resolver::ProxyResolverFactoryImpl> factory(
remote->BindNewPipeAndPassReceiver());
#else
// For other platforms we launch the resolver in its own sandboxed service
// process.
content::ServiceProcessHost::Launch(
remote->BindNewPipeAndPassReceiver(),
content::ServiceProcessHost::Options()
.WithDisplayName(IDS_PROXY_RESOLVER_DISPLAY_NAME)
.Pass());
// The service will report itself idle once there are no more bound
// ProxyResolver instances. We drop the Remote at that point to initiate
// service process termination. Any subsequent call to
// |GetProxyResolverFactory()| will launch a new process.
remote->reset_on_idle_timeout(base::TimeDelta());
// Also reset on disconnection in case, e.g., the service crashes.
remote->reset_on_disconnect();
#endif
}
return remote->get();
}
} // namespace
ChromeMojoProxyResolverFactory::ChromeMojoProxyResolverFactory() = default;
ChromeMojoProxyResolverFactory::~ChromeMojoProxyResolverFactory() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
mojo::PendingRemote<proxy_resolver::mojom::ProxyResolverFactory>
ChromeMojoProxyResolverFactory::CreateWithSelfOwnedReceiver() {
mojo::PendingRemote<proxy_resolver::mojom::ProxyResolverFactory> remote;
mojo::MakeSelfOwnedReceiver(
std::make_unique<ChromeMojoProxyResolverFactory>(),
remote.InitWithNewPipeAndPassReceiver());
return remote;
}
void ChromeMojoProxyResolverFactory::CreateResolver(
const std::string& pac_script,
mojo::PendingReceiver<proxy_resolver::mojom::ProxyResolver> receiver,
mojo::PendingRemote<
proxy_resolver::mojom::ProxyResolverFactoryRequestClient> client) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
GetProxyResolverFactory()->CreateResolver(pac_script, std::move(receiver),
std::move(client));
}
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