components/web_view/url_request_cloneable.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_WEB_VIEW_URL_REQUEST_CLONEABLE_H_
   6 #define COMPONENTS_WEB_VIEW_URL_REQUEST_CLONEABLE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
  13
  14 namespace web_view {
  15
  16 // This class caches data associated with a mojo::URLRequest and vends copies
  17 // of the request for the WebView system. Copies are used for repeated
  18 // navigations, but URLRequest structs are not copyable, as they contain
  19 // handles to transfer large amounts of data between processes, so we
  20 // immediately read the data from pipes and keep a copy here.
  21 class URLRequestCloneable {
  22  public:
  23   explicit URLRequestCloneable(mojo::URLRequestPtr original_request);
  24   ~URLRequestCloneable();
  25
  26   // Creates a new URLRequest.
  27   mojo::URLRequestPtr Clone() const;
  28
  29  private:
  30   // All of these are straight from mojo::URLRequest.
  31   mojo::String url_;
  32   mojo::String method_;
  33   mojo::Array<mojo::HttpHeaderPtr> headers_;
  34   uint32_t response_body_buffer_size_;
  35   bool auto_follow_redirects_;
  36   bool bypass_cache_;
  37
  38   // Whether the body mojo array in the |original_request| was null. We keep
  39   // track of this so we can differentiate between null arrays and empty
  40   // arrays.
  41   bool original_body_null_;
  42
  43   // This is a serialized version of the data from mojo::URLRequest. We copy
  44   // this data straight out of the data pipes, and then serve it any time that
  45   // AsURLRequest() is called.
  46   std::vector<std::string> body_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(URLRequestCloneable);
  49 };
  50
  51 }  // namespace web_view
  52
  53 #endif  // COMPONENTS_WEB_VIEW_URL_REQUEST_CLONEABLE_H_