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// Copyright 2016 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_PERMISSION_REPORTER_H_
#define CHROME_BROWSER_SAFE_BROWSING_PERMISSION_REPORTER_H_
#include <queue>
#include <string>
#include <unordered_map>
#include "base/time/time.h"
#include "chrome/browser/permissions/permission_uma_util.h"
#include "url/gurl.h"
namespace base {
class Clock;
} // namespace base
namespace net {
class ReportSender;
class URLRequestContext;
} // namespace net
namespace safe_browsing {
struct PermissionAndOrigin {
bool operator==(const PermissionAndOrigin& other) const;
content::PermissionType permission;
GURL origin;
};
struct PermissionAndOriginHash {
std::size_t operator()(
const PermissionAndOrigin& permission_and_origin) const;
};
// Provides functionality for building and serializing reports about permissions
// to a report collection server.
class PermissionReporter {
public:
// Creates a permission reporter that will send permission reports to
// the SafeBrowsing permission action server, using |request_context| as the
// context for the reports.
explicit PermissionReporter(net::URLRequestContext* request_context);
~PermissionReporter();
// Sends a serialized permission report to the report collection server.
// The permission report includes the origin of the site requesting the
// permission and other information about the permission action included in
// |report_info|. The report will be serialized using protobuf defined in
// //src/chrome/common/safe_browsing/permission_report.proto
void SendReport(const PermissionReportInfo& report_info);
private:
friend class PermissionReporterBrowserTest;
friend class PermissionReporterTest;
// Used by tests. This constructor allows tests to have access to the
// ReportSender and use a test Clock.
PermissionReporter(std::unique_ptr<net::ReportSender> report_sender,
std::unique_ptr<base::Clock> clock);
// Builds and serializes a permission report with |report_info| included.
// The serialized report is written into |output|. Returns true if the
// serialization was successful and false otherwise.
static bool BuildReport(const PermissionReportInfo& report_info,
std::string* output);
// Returns false if the number of reports sent in the last one minute per
// origin per permission is under a threshold, otherwise true.
bool IsReportThresholdExceeded(content::PermissionType permission,
const GURL& origin);
std::unique_ptr<net::ReportSender> permission_report_sender_;
// TODO(stefanocs): This might introduce a memory issue since older entries
// are not removed until a new report with the corresponding key is added. We
// should address this issue if that becomes a problem in the future.
std::unordered_map<PermissionAndOrigin,
std::queue<base::Time>,
PermissionAndOriginHash>
report_logs_;
std::unique_ptr<base::Clock> clock_;
DISALLOW_COPY_AND_ASSIGN(PermissionReporter);
};
} // namespace safe_browsing
#endif // CHROME_BROWSER_SAFE_BROWSING_PERMISSION_REPORTER_H_
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