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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_PLUGINS_PLUGIN_RESPONSE_INTERCEPTOR_URL_LOADER_THROTTLE_H_
#define CHROME_BROWSER_PLUGINS_PLUGIN_RESPONSE_INTERCEPTOR_URL_LOADER_THROTTLE_H_
#include "base/memory/weak_ptr.h"
#include "content/public/browser/frame_tree_node_id.h"
#include "services/network/public/mojom/fetch_api.mojom-shared.h"
#include "third_party/blink/public/common/loader/url_loader_throttle.h"
// Used to watch navigation responses to look for mime types that are handled by
// extensions. When it finds such a response, it will intercept it by extracting
// the URLLoader interface pointer. It will create a random string and send that
// to the extension which handles the mime type. It will also write that string
// into the object tag for the plugin, which will cause the pepper plugin to
// make a request for that URL. The renderer would have gotten a
// TransferrableURLLoader that allows it to map from that URL to the original
// URLLoader interface pointer.
class PluginResponseInterceptorURLLoaderThrottle
: public blink::URLLoaderThrottle {
public:
PluginResponseInterceptorURLLoaderThrottle(
network::mojom::RequestDestination request_destination,
content::FrameTreeNodeId frame_tree_node_id);
PluginResponseInterceptorURLLoaderThrottle(
const PluginResponseInterceptorURLLoaderThrottle&) = delete;
PluginResponseInterceptorURLLoaderThrottle& operator=(
const PluginResponseInterceptorURLLoaderThrottle&) = delete;
~PluginResponseInterceptorURLLoaderThrottle() override;
private:
// blink::URLLoaderThrottle overrides;
void WillProcessResponse(const GURL& response_url,
network::mojom::URLResponseHead* response_head,
bool* defer) override;
// Resumes loading for an intercepted response. This would give the extension
// layer chance to initialize its browser side state.
void ResumeLoad();
const network::mojom::RequestDestination request_destination_;
const content::FrameTreeNodeId frame_tree_node_id_;
base::WeakPtrFactory<PluginResponseInterceptorURLLoaderThrottle>
weak_factory_{this};
};
#endif // CHROME_BROWSER_PLUGINS_PLUGIN_RESPONSE_INTERCEPTOR_URL_LOADER_THROTTLE_H_
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