content/child/web_url_loader_impl.h

// Copyright 2014 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.

#ifndef CONTENT_CHILD_WEB_URL_LOADER_IMPL_H_
#define CONTENT_CHILD_WEB_URL_LOADER_IMPL_H_

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "content/public/common/resource_response.h"
#include "net/url_request/redirect_info.h"
#include "third_party/WebKit/public/platform/WebURLLoader.h"
#include "url/gurl.h"

namespace base {

class SingleThreadTaskRunner;

}  // namespace base

namespace content {

class ResourceDispatcher;
struct ResourceResponseInfo;

// PlzNavigate: Used to override parameters of the navigation request.
struct StreamOverrideParameters {
 public:
  // TODO(clamy): The browser should be made aware on destruction of this struct
  // that it can release its associated stream handle.
  GURL stream_url;
  ResourceResponseHead response;
};

class CONTENT_EXPORT WebURLLoaderImpl
    : public NON_EXPORTED_BASE(blink::WebURLLoader) {
 public:

  // Takes ownership of |web_task_runner|.
  WebURLLoaderImpl(ResourceDispatcher* resource_dispatcher,
                   scoped_ptr<blink::WebTaskRunner> web_task_runner);
  ~WebURLLoaderImpl() override;

  static void PopulateURLResponse(const GURL& url,
                                  const ResourceResponseInfo& info,
                                  blink::WebURLResponse* response,
                                  bool report_security_info);
  static void PopulateURLRequestForRedirect(
      const blink::WebURLRequest& request,
      const net::RedirectInfo& redirect_info,
      blink::WebReferrerPolicy referrer_policy,
      bool skip_service_worker,
      blink::WebURLRequest* new_request);

  // WebURLLoader methods:
  void loadSynchronously(
      const blink::WebURLRequest& request,
      blink::WebURLResponse& response,
      blink::WebURLError& error,
      blink::WebData& data) override;
  void loadAsynchronously(
      const blink::WebURLRequest& request,
      blink::WebURLLoaderClient* client) override;
  void cancel() override;
  void setDefersLoading(bool value) override;
  void didChangePriority(blink::WebURLRequest::Priority new_priority,
                         int intra_priority_value) override;
  void setLoadingTaskRunner(blink::WebTaskRunner* loading_task_runner) override;

  // This is a utility function for multipart image resources.
  static bool ParseMultipartHeadersFromBody(const char* bytes,
                                            size_t size,
                                            blink::WebURLResponse* response,
                                            size_t* end);

 private:
  class Context;
  class RequestPeerImpl;
  scoped_refptr<Context> context_;

  DISALLOW_COPY_AND_ASSIGN(WebURLLoaderImpl);
};

}  // namespace content

#endif  // CONTENT_CHILD_WEB_URL_LOADER_IMPL_H_