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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_NETWORK_RESOURCE_LOADER_H_
#define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_NETWORK_RESOURCE_LOADER_H_
#include <memory>
#include <string_view>
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/simple_url_loader.h"
#include "services/network/public/cpp/simple_url_loader_stream_consumer.h"
#include "services/network/public/mojom/url_loader.mojom.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"
namespace content {
namespace protocol {
// The DevToolsNetworkResourceLoader loads a network resource for DevTools
// and passes it to the provided call-back once loading completed. Currently,
// the resource is provided as a string, but in the future this will use
// a DevToolsStreamPipe. This is why we don't just use DownloadToString.
class CONTENT_EXPORT DevToolsNetworkResourceLoader
: public network::SimpleURLLoaderStreamConsumer {
public:
using CompletionCallback =
base::OnceCallback<void(DevToolsNetworkResourceLoader*,
const net::HttpResponseHeaders* rh,
bool success,
int net_error,
std::string content)>;
enum class Caching { kBypass, kDefault };
enum class Credentials { kInclude, kSameSite };
// The |origin| and |site_for_cookies| parameters are supplied by the caller,
// and we trust the caller that these values are reasonable. They are usually
// taken from a renderer host / worker host that was identified by the
// DevTools front-end based on the inspected page.
static std::unique_ptr<DevToolsNetworkResourceLoader> Create(
mojo::Remote<network::mojom::URLLoaderFactory> url_loader_factory,
GURL gurl,
const url::Origin& origin,
net::SiteForCookies site_for_cookies,
Caching caching,
Credentials include_credentials,
CompletionCallback complete_callback);
~DevToolsNetworkResourceLoader() override;
// Disallow copy and assignment.
DevToolsNetworkResourceLoader(const DevToolsNetworkResourceLoader&) = delete;
DevToolsNetworkResourceLoader& operator=(
const DevToolsNetworkResourceLoader&) = delete;
private:
DevToolsNetworkResourceLoader(
network::ResourceRequest resource_request,
const net::NetworkTrafficAnnotationTag& traffic_annotation,
mojo::Remote<network::mojom::URLLoaderFactory> url_loader_factory,
CompletionCallback complete_callback);
void DownloadAsStream();
void OnDataReceived(std::string_view chunk,
base::OnceClosure resume) override;
void OnComplete(bool success) override;
void OnRetry(base::OnceClosure start_retry) override;
const network::ResourceRequest resource_request_;
const net::NetworkTrafficAnnotationTag traffic_annotation_;
std::unique_ptr<network::SimpleURLLoader> loader_;
mojo::Remote<network::mojom::URLLoaderFactory> url_loader_factory_;
CompletionCallback completion_callback_;
std::string content_;
};
} // namespace protocol
} // namespace content
#endif // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_NETWORK_RESOURCE_LOADER_H_
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