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// Copyright 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_SSL_SSL_ERROR_HANDLER_H_
#define CHROME_BROWSER_SSL_SSL_ERROR_HANDLER_H_
#include <string>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/timer/timer.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/ssl/ssl_cert_reporter.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "net/ssl/ssl_info.h"
#include "url/gurl.h"
namespace content {
class RenderViewHost;
class WebContents;
}
// This class is responsible for deciding whether to show an SSL warning or a
// captive portal error page. It makes this decision by delaying the display of
// SSL interstitial for a few seconds (2 by default), and waiting for a captive
// portal result to arrive during this window. If a captive portal detected
// result arrives in this window, a captive portal error page is shown.
// Otherwise, an SSL interstitial is shown.
//
// An SSLErrorHandler is associated with a particular WebContents, and is
// deleted if the WebContents is destroyed, or an interstitial is displayed.
// It should only be used on the UI thread because its implementation uses
// captive_portal::CaptivePortalService which can only be accessed on the UI
// thread.
class SSLErrorHandler : public content::WebContentsUserData<SSLErrorHandler>,
public content::WebContentsObserver,
public content::NotificationObserver {
public:
// Type of the delay to display the SSL interstitial.
enum InterstitialDelayType {
NORMAL, // Default interstitial timer delay used in production.
NONE, // No interstitial timer delay (i.e. zero), used in tests.
LONG // Very long interstitial timer delay (ie. an hour), used in tests.
};
static void HandleSSLError(content::WebContents* web_contents,
int cert_error,
const net::SSLInfo& ssl_info,
const GURL& request_url,
int options_mask,
scoped_ptr<SSLCertReporter> ssl_cert_reporter,
const base::Callback<void(bool)>& callback);
static void SetInterstitialDelayTypeForTest(InterstitialDelayType delay);
typedef base::Callback<void(content::WebContents*)> TimerStartedCallback;
static void SetInterstitialTimerStartedCallbackForTest(
TimerStartedCallback* callback);
protected:
SSLErrorHandler(content::WebContents* web_contents,
int cert_error,
const net::SSLInfo& ssl_info,
const GURL& request_url,
int options_mask,
scoped_ptr<SSLCertReporter> ssl_cert_reporter,
const base::Callback<void(bool)>& callback);
~SSLErrorHandler() override;
// Called when an SSL cert error is encountered. Triggers a captive portal
// check and fires a one shot timer to wait for a "captive portal detected"
// result to arrive.
void StartHandlingError();
const base::OneShotTimer<SSLErrorHandler>& get_timer() const {
return timer_;
}
private:
// Callback for the one-shot timer. When the timer expires, an SSL error is
// immediately displayed.
void OnTimerExpired();
// These are virtual for tests:
virtual void CheckForCaptivePortal();
virtual void ShowCaptivePortalInterstitial(const GURL& landing_url);
virtual void ShowSSLInterstitial();
// content::NotificationObserver:
void Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// content::WebContentsObserver:
void DidStartNavigationToPendingEntry(
const GURL& url,
content::NavigationController::ReloadType reload_type) override;
// content::WebContentsObserver:
void NavigationStopped() override;
// Deletes the SSLErrorHandler. This method is called when the page
// load stops or when there is a new navigation.
void DeleteSSLErrorHandler();
content::WebContents* web_contents_;
const int cert_error_;
const net::SSLInfo ssl_info_;
const GURL request_url_;
const int options_mask_;
base::Callback<void(bool)> callback_;
content::NotificationRegistrar registrar_;
base::OneShotTimer<SSLErrorHandler> timer_;
scoped_ptr<SSLCertReporter> ssl_cert_reporter_;
DISALLOW_COPY_AND_ASSIGN(SSLErrorHandler);
};
#endif // CHROME_BROWSER_SSL_SSL_ERROR_HANDLER_H_
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