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// Copyright (c) 2012 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 COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_THREAT_DETAILS_CACHE_H_
#define COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_THREAT_DETAILS_CACHE_H_
// A class that gets threat details from the HTTP Cache.
// An instance of this class is generated by ThreatDetails.
#include <string>
#include <unordered_map>
#include "base/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "components/safe_browsing/core/common/proto/csd.pb.h"
namespace network {
class SimpleURLLoader;
class SharedURLLoaderFactory;
}
class GURL;
namespace safe_browsing {
// Maps a URL to its Resource.
typedef std::unordered_map<
std::string,
std::unique_ptr<ClientSafeBrowsingReportRequest::Resource>>
ResourceMap;
class ThreatDetailsCacheCollector
: public base::RefCounted<ThreatDetailsCacheCollector> {
public:
ThreatDetailsCacheCollector();
// We use |request_context_getter|, we modify |resources| and
// |result|, and we call |callback|, so they must all remain alive
// for the lifetime of this object.
void StartCacheCollection(
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory,
ResourceMap* resources,
bool* result,
base::OnceClosure callback);
// Returns whether or not StartCacheCollection has been called.
bool HasStarted();
protected:
// Called after the request completes (either successfully or with failure).
void OnURLLoaderComplete(std::unique_ptr<std::string> response_body);
private:
friend class base::RefCounted<ThreatDetailsCacheCollector>;
~ThreatDetailsCacheCollector();
// Points to the url for which we are fetching the HTTP cache entry or
// redirect chain.
ResourceMap::iterator resources_it_;
// Points to the resources_ map in the ThreatDetails.
raw_ptr<ResourceMap> resources_;
// Points to the cache_result_ in the ThreatDetails.
raw_ptr<bool> result_;
// Method we call when we are done. The caller must be alive for the
// whole time, we are modifying its state (see above).
base::OnceClosure callback_;
// Set to true as soon as StartCacheCollection is called.
bool has_started_;
// Used to get a pointer to the current URLLoaderFactory.
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
// The current SimpleURLLoader.
std::unique_ptr<network::SimpleURLLoader> current_load_;
// Returns the resource from resources_ that corresponds to |url|
ClientSafeBrowsingReportRequest::Resource* GetResource(const GURL& url);
// Creates a new URLFetcher and starts it.
void OpenEntry();
// Read the HTTP response from |current_load_| and add it to |pb_resource|.
void ReadResponse(ClientSafeBrowsingReportRequest::Resource* pb_resource);
// Read the body |data| and add it to |pb_resource|.
void ReadData(ClientSafeBrowsingReportRequest::Resource* pb_resource,
const std::string& data);
// Called when we are done.
void AllDone(bool success);
// Advances to the next entry in resources_it_.
void AdvanceEntry();
};
} // namespace safe_browsing
#endif // COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_THREAT_DETAILS_CACHE_H_
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