blob: 3822705c70cb62203dab2037b38c659c091e4af5 [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/pepper/pepper_proxy_lookup_helper.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/sequenced_task_runner.h"
#include "base/task/post_task.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "mojo/public/cpp/bindings/interface_request.h"
#include "net/base/net_errors.h"
#include "url/gurl.h"
namespace content {
// Runs the proxy lookup on the UI thread. Created on the
// PepperProxyLookupHelper's thread, but then does all work on the UI thread,
// and is deleted there by a task posted by the PepperProxyLookupHelper.
class PepperProxyLookupHelper::UIThreadHelper
: public network::mojom::ProxyLookupClient {
public:
UIThreadHelper(const GURL& url,
LookUpProxyForURLCallback look_up_proxy_for_url_callback,
LookUpCompleteCallback look_up_complete_callback)
: binding_(this),
look_up_complete_callback_(std::move(look_up_complete_callback)),
callback_task_runner_(base::SequencedTaskRunnerHandle::Get()) {
base::PostTaskWithTraits(
FROM_HERE, {BrowserThread::UI},
base::BindOnce(&UIThreadHelper::StartLookup, base::Unretained(this),
url, std::move(look_up_proxy_for_url_callback)));
}
~UIThreadHelper() override { DCHECK_CURRENTLY_ON(BrowserThread::UI); }
private:
void StartLookup(const GURL& url,
LookUpProxyForURLCallback look_up_proxy_for_url_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
network::mojom::ProxyLookupClientPtr proxy_lookup_client;
binding_.Bind(mojo::MakeRequest(&proxy_lookup_client));
binding_.set_connection_error_handler(base::BindOnce(
&UIThreadHelper::OnProxyLookupComplete, base::Unretained(this),
net::ERR_ABORTED, base::nullopt));
if (!std::move(look_up_proxy_for_url_callback)
.Run(url, std::move(proxy_lookup_client))) {
OnProxyLookupComplete(net::ERR_FAILED, base::nullopt);
}
}
void OnProxyLookupComplete(
int32_t net_error,
const base::Optional<net::ProxyInfo>& proxy_info) override {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
binding_.Close();
callback_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(std::move(look_up_complete_callback_), proxy_info));
}
mojo::Binding<network::mojom::ProxyLookupClient> binding_;
LookUpCompleteCallback look_up_complete_callback_;
scoped_refptr<base::SequencedTaskRunner> callback_task_runner_;
DISALLOW_COPY_AND_ASSIGN(UIThreadHelper);
};
PepperProxyLookupHelper::PepperProxyLookupHelper() : weak_factory_(this) {}
PepperProxyLookupHelper::~PepperProxyLookupHelper() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE,
std::move(ui_thread_helper_));
}
void PepperProxyLookupHelper::Start(
const GURL& url,
LookUpProxyForURLCallback look_up_proxy_for_url_callback,
LookUpCompleteCallback look_up_complete_callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!look_up_complete_callback_);
DCHECK(!ui_thread_helper_);
look_up_complete_callback_ = std::move(look_up_complete_callback);
ui_thread_helper_ = std::make_unique<UIThreadHelper>(
url, std::move(look_up_proxy_for_url_callback),
base::BindOnce(&PepperProxyLookupHelper::OnProxyLookupComplete,
weak_factory_.GetWeakPtr()));
}
void PepperProxyLookupHelper::OnProxyLookupComplete(
base::Optional<net::ProxyInfo> proxy_info) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
std::move(look_up_complete_callback_).Run(std::move(proxy_info));
}
} // namespace content