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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 CHROME_BROWSER_SAFE_BROWSING_MALWARE_DETAILS_CACHE_H_
#define CHROME_BROWSER_SAFE_BROWSING_MALWARE_DETAILS_CACHE_H_
// A class that gets malware details from the HTTP Cache.
// An instance of this class is generated by MalwareDetails.
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/containers/hash_tables.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/safe_browsing/report.pb.h"
#include "net/base/completion_callback.h"
#include "net/url_request/url_fetcher_delegate.h"
namespace net {
class URLFetcher;
class URLRequestContext;
}
namespace safe_browsing {
// Maps a URL to its Resource.
typedef base::hash_map<
std::string,
linked_ptr<safe_browsing::ClientMalwareReportRequest::Resource> > ResourceMap;
}
class MalwareDetailsCacheCollector
: public base::RefCountedThreadSafe<MalwareDetailsCacheCollector>,
public net::URLFetcherDelegate {
public:
MalwareDetailsCacheCollector();
// 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(
net::URLRequestContextGetter* request_context_getter,
safe_browsing::ResourceMap* resources,
bool* result,
const base::Closure& callback);
// Returns whether or not StartCacheCollection has been called.
bool HasStarted();
protected:
// Implementation of URLFetcher::Delegate. Called after the request
// completes (either successfully or with failure).
virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
private:
friend class base::RefCountedThreadSafe<MalwareDetailsCacheCollector>;
virtual ~MalwareDetailsCacheCollector();
// Points to the url for which we are fetching the HTTP cache entry or
// redirect chain.
safe_browsing::ResourceMap::iterator resources_it_;
// Points to the resources_ map in the MalwareDetails.
safe_browsing::ResourceMap* resources_;
// Points to the cache_result_ in the MalwareDetails.
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::Closure callback_;
// Set to true as soon as StartCacheCollection is called.
bool has_started_;
// Used to get a pointer to the current request context.
scoped_refptr<net::URLRequestContextGetter> request_context_getter_;
// The current URLFetcher.
scoped_ptr<net::URLFetcher> current_fetch_;
// Returns the resource from resources_ that corresponds to |url|
safe_browsing::ClientMalwareReportRequest::Resource* GetResource(
const GURL& url);
// Creates a new URLFetcher and starts it.
void OpenEntry();
// Read the HTTP response from |source| and add it to |pb_resource|.
void ReadResponse(
safe_browsing::ClientMalwareReportRequest::Resource* pb_resource,
const net::URLFetcher* source);
// Read the body |data| and add it to |pb_resource|.
void ReadData(
safe_browsing::ClientMalwareReportRequest::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();
};
#endif // CHROME_BROWSER_SAFE_BROWSING_MALWARE_DETAILS_CACHE_H_
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