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// 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.
#ifndef EXTENSIONS_RENDERER_EXTENSION_URL_LOADER_THROTTLE_H_
#define EXTENSIONS_RENDERER_EXTENSION_URL_LOADER_THROTTLE_H_
#include <string>
#include <vector>
#include "base/macros.h"
#include "content/public/common/url_loader_throttle.h"
namespace extensions {
class ExtensionThrottleManager;
// This class monitors requests issued by extensions and throttles the request
// if there are too many requests made within a short time to urls with the same
// scheme, host, port and path. For the exact criteria for throttling, please
// also see extension_throttle_manager.cc.
class ExtensionURLLoaderThrottle : public content::URLLoaderThrottle {
public:
explicit ExtensionURLLoaderThrottle(ExtensionThrottleManager* manager);
~ExtensionURLLoaderThrottle() override;
// content::URLLoaderThrottle:
void WillStartRequest(network::ResourceRequest* request,
bool* defer) override;
void WillRedirectRequest(
const net::RedirectInfo& redirect_info,
const network::ResourceResponseHead& response_head,
bool* defer,
std::vector<std::string>* to_be_removed_request_headers) override;
void WillProcessResponse(const GURL& response_url,
const network::ResourceResponseHead& response_head,
bool* defer) override;
private:
// content::URLLoaderThrottle:
void DetachFromCurrentSequence() override;
ExtensionThrottleManager* manager_ = nullptr;
int request_load_flags_ = 0;
GURL start_request_url_;
DISALLOW_COPY_AND_ASSIGN(ExtensionURLLoaderThrottle);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_EXTENSION_URL_LOADER_THROTTLE_H_