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// Copyright (c) 2014 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_INTERSTITIALS_SECURITY_INTERSTITIAL_METRICS_HELPER_H_
#define CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_METRICS_HELPER_H_
#include <string>
#include "base/task/cancelable_task_tracker.h"
#include "base/time/time.h"
#include "url/gurl.h"
namespace content {
class WebContents;
}
namespace extensions {
class ExperienceSamplingEvent;
}
// Most of the security interstitials share a common layout and set of
// choices. SecurityInterstitialMetricsHelper is intended to help the security
// interstitials record user choices in a common way via METRICS histograms
// and RAPPOR metrics.
class SecurityInterstitialMetricsHelper {
public:
// These enums are used for histograms. Don't reorder, delete, or insert
// elements. New elements should be added at the end (right before the max).
enum SecurityInterstitialDecision {
SHOW,
PROCEED,
DONT_PROCEED,
PROCEEDING_DISABLED,
MAX_DECISION
};
enum SecurityInterstitialInteraction {
TOTAL_VISITS,
SHOW_ADVANCED,
SHOW_PRIVACY_POLICY,
SHOW_DIAGNOSTIC,
SHOW_LEARN_MORE,
RELOAD,
OPEN_TIME_SETTINGS,
MAX_INTERACTION
};
enum RapporReporting {
REPORT_RAPPOR,
SKIP_RAPPOR,
};
// Args:
// url: URL of page that triggered the interstitial. Only origin is used.
// uma_prefix: Histogram prefix for UMA.
// examples: "phishing", "ssl_overridable"
// rappor_prefix: Metric prefix for Rappor.
// examples: "phishing", "ssl"
// rappor_reporting: Used to skip rappor rapporting if desired.
// sampling_event_name: Event name for Experience Sampling.
// e.g. "phishing_interstitial_"
SecurityInterstitialMetricsHelper(content::WebContents* web_contents,
const GURL& url,
const std::string& uma_prefix,
const std::string& rappor_prefix,
RapporReporting rappor_reporting,
const std::string& sampling_event_name);
~SecurityInterstitialMetricsHelper();
// Record a user decision or interaction to the appropriate UMA histogram
// and potentially in a RAPPOR metric.
void RecordUserDecision(SecurityInterstitialDecision decision);
void RecordUserInteraction(SecurityInterstitialInteraction interaction);
private:
// Used to query the HistoryService to see if the URL is in history.
void OnGotHistoryCount(bool success, int num_visits, base::Time first_visit);
content::WebContents* web_contents_;
const GURL request_url_;
const std::string uma_prefix_;
const std::string rappor_prefix_;
const RapporReporting rappor_reporting_;
const std::string sampling_event_name_;
int num_visits_;
base::CancelableTaskTracker request_tracker_;
#if defined(ENABLE_EXTENSIONS)
scoped_ptr<extensions::ExperienceSamplingEvent> sampling_event_;
#endif
DISALLOW_COPY_AND_ASSIGN(SecurityInterstitialMetricsHelper);
};
#endif // CHROME_BROWSER_INTERSTITIALS_SECURITY_INTERSTITIAL_METRICS_HELPER_H_
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