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// Copyright 2021 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_win.h"
#include "base/no_destructor.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/service_process_host.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "services/strings/grit/services_strings.h"
namespace {
using proxy_resolver_win::mojom::WindowsSystemProxyResolver;
WindowsSystemProxyResolver* GetProxyResolver(
const base::TimeDelta& idle_timeout) {
static base::NoDestructor<mojo::Remote<WindowsSystemProxyResolver>> remote;
if (!remote->is_bound()) {
content::ServiceProcessHost::Launch(
remote->BindNewPipeAndPassReceiver(),
content::ServiceProcessHost::Options()
.WithDisplayName(IDS_WINDOWS_SYSTEM_PROXY_RESOLVER_DISPLAY_NAME)
.Pass());
// The service will report itself idle once there are no more bound
// WindowsSystemProxyResolver instances. This will happen pretty frequently,
// so we wait for |idle_timeout| before dropping the Remote to initiate
// service process termination. Any subsequent call to GetProxyForUrl() will
// launch a new process.
remote->reset_on_idle_timeout(idle_timeout);
// Also reset on disconnect in case, e.g., the service crashes.
remote->reset_on_disconnect();
}
return remote->get();
}
} // namespace
ChromeMojoProxyResolverWin::ChromeMojoProxyResolverWin(
const base::TimeDelta& idle_timeout)
: idle_timeout_(idle_timeout) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
}
ChromeMojoProxyResolverWin::~ChromeMojoProxyResolverWin() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
}
mojo::PendingRemote<WindowsSystemProxyResolver>
ChromeMojoProxyResolverWin::CreateWithSelfOwnedReceiver() {
mojo::PendingRemote<WindowsSystemProxyResolver> remote;
mojo::MakeSelfOwnedReceiver(
std::make_unique<ChromeMojoProxyResolverWin>(base::Minutes(5)),
remote.InitWithNewPipeAndPassReceiver());
return remote;
}
mojo::PendingRemote<WindowsSystemProxyResolver>
ChromeMojoProxyResolverWin::CreateWithSelfOwnedReceiverForTesting(
const base::TimeDelta& idle_timeout) {
mojo::PendingRemote<WindowsSystemProxyResolver> remote;
mojo::MakeSelfOwnedReceiver(
std::make_unique<ChromeMojoProxyResolverWin>(idle_timeout),
remote.InitWithNewPipeAndPassReceiver());
return remote;
}
void ChromeMojoProxyResolverWin::GetProxyForUrl(
const GURL& url,
GetProxyForUrlCallback callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
GetProxyResolver(idle_timeout_)->GetProxyForUrl(url, std::move(callback));
}
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