chrome/browser/password_manager/password_manager_delegate_impl.cc

// 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.

#include "chrome/browser/password_manager/password_manager_delegate_impl.h"

#include "base/memory/singleton.h"
#include "base/metrics/histogram.h"
#include "base/strings/utf_string_conversions.h"
#include "base/timer/elapsed_timer.h"
#include "chrome/browser/infobars/confirm_infobar_delegate.h"
#include "chrome/browser/infobars/infobar.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/browser/password_manager/password_form_manager.h"
#include "chrome/browser/password_manager/password_manager.h"
#include "chrome/browser/password_manager/password_manager_metrics_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/sync/one_click_signin_helper.h"
#include "components/autofill/content/browser/autofill_driver_impl.h"
#include "components/autofill/core/browser/autofill_manager.h"
#include "components/autofill/core/common/autofill_messages.h"
#include "components/autofill/core/common/password_form.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/ssl_status.h"
#include "google_apis/gaia/gaia_urls.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "net/cert/cert_status_flags.h"
#include "ui/base/l10n/l10n_util.h"


// SavePasswordInfoBarDelegate ------------------------------------------------

// After a successful *new* login attempt, we take the PasswordFormManager in
// provisional_save_manager_ and move it to a SavePasswordInfoBarDelegate while
// the user makes up their mind with the "save password" infobar. Note if the
// login is one we already know about, the end of the line is
// provisional_save_manager_ because we just update it on success and so such
// forms never end up in an infobar.
class SavePasswordInfoBarDelegate : public ConfirmInfoBarDelegate {
 public:
  // If we won't be showing the one-click signin infobar, creates a save
  // password infobar and delegate and adds the infobar to the InfoBarService
  // for |web_contents|.  |uma_histogram_suffix| is empty, or one of the
  // "group_X" suffixes used in the histogram names for infobar usage reporting;
  // if empty, the usage is not reported, otherwise the suffix is used to choose
  // the right histogram.
  static void Create(content::WebContents* web_contents,
                     PasswordFormManager* form_to_save,
                     const std::string& uma_histogram_suffix);

 private:
  enum ResponseType {
    NO_RESPONSE = 0,
    REMEMBER_PASSWORD,
    NEVER_REMEMBER_PASSWORD,
    INFOBAR_DISMISSED,
    NUM_RESPONSE_TYPES,
  };

  SavePasswordInfoBarDelegate(PasswordFormManager* form_to_save,
                              const std::string& uma_histogram_suffix);
  virtual ~SavePasswordInfoBarDelegate();

  // ConfirmInfoBarDelegate
  virtual int GetIconID() const OVERRIDE;
  virtual Type GetInfoBarType() const OVERRIDE;
  virtual base::string16 GetMessageText() const OVERRIDE;
  virtual base::string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
  virtual bool Accept() OVERRIDE;
  virtual bool Cancel() OVERRIDE;
  virtual void InfoBarDismissed() OVERRIDE;

  virtual InfoBarAutomationType GetInfoBarAutomationType() const OVERRIDE;

  // The PasswordFormManager managing the form we're asking the user about,
  // and should update as per her decision.
  scoped_ptr<PasswordFormManager> form_to_save_;

  // Used to track the results we get from the info bar.
  ResponseType infobar_response_;

  // Measures the "Save password?" prompt lifetime. Used to report an UMA
  // signal.
  base::ElapsedTimer timer_;

  // The group name corresponding to the domain name of |form_to_save_| if the
  // form is on a monitored domain. Otherwise, an empty string.
  const std::string uma_histogram_suffix_;

  DISALLOW_COPY_AND_ASSIGN(SavePasswordInfoBarDelegate);
};

// static
void SavePasswordInfoBarDelegate::Create(
    content::WebContents* web_contents,
    PasswordFormManager* form_to_save,
    const std::string& uma_histogram_suffix) {
#if defined(ENABLE_ONE_CLICK_SIGNIN)
  // Don't show the password manager infobar if this form is for a google
  // account and we are going to show the one-click signin infobar.
  GURL realm(form_to_save->realm());
  // TODO(mathp): Checking only against associated_username() causes a bug
  // referenced here: crbug.com/133275
  if (((realm == GaiaUrls::GetInstance()->gaia_login_form_realm()) ||
       (realm == GURL("https://www.google.com/"))) &&
      OneClickSigninHelper::CanOffer(
          web_contents, OneClickSigninHelper::CAN_OFFER_FOR_INTERSTITAL_ONLY,
          UTF16ToUTF8(form_to_save->associated_username()), NULL))
    return;
#endif

  InfoBarService::FromWebContents(web_contents)->AddInfoBar(
      ConfirmInfoBarDelegate::CreateInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
          new SavePasswordInfoBarDelegate(form_to_save,
                                          uma_histogram_suffix))));
}

SavePasswordInfoBarDelegate::SavePasswordInfoBarDelegate(
    PasswordFormManager* form_to_save,
    const std::string& uma_histogram_suffix)
    : ConfirmInfoBarDelegate(),
      form_to_save_(form_to_save),
      infobar_response_(NO_RESPONSE),
      uma_histogram_suffix_(uma_histogram_suffix) {
  if (!uma_histogram_suffix_.empty()) {
    password_manager_metrics_util::LogUMAHistogramBoolean(
        "PasswordManager.SavePasswordPromptDisplayed_" + uma_histogram_suffix_,
        true);
  }
}

SavePasswordInfoBarDelegate::~SavePasswordInfoBarDelegate() {
  UMA_HISTOGRAM_ENUMERATION("PasswordManager.InfoBarResponse",
                            infobar_response_, NUM_RESPONSE_TYPES);

  // The shortest period for which the prompt needs to live, so that we don't
  // consider it killed prematurely, as might happen, e.g., if a pre-rendered
  // page gets swapped in (and the current WebContents is destroyed).
  const base::TimeDelta kMinimumPromptDisplayTime =
      base::TimeDelta::FromSeconds(1);

  if (!uma_histogram_suffix_.empty()) {
    password_manager_metrics_util::LogUMAHistogramEnumeration(
        "PasswordManager.SavePasswordPromptResponse_" + uma_histogram_suffix_,
        infobar_response_, NUM_RESPONSE_TYPES);
    password_manager_metrics_util::LogUMAHistogramBoolean(
        "PasswordManager.SavePasswordPromptDisappearedQuickly_" +
            uma_histogram_suffix_,
        timer_.Elapsed() < kMinimumPromptDisplayTime);
  }
}

int SavePasswordInfoBarDelegate::GetIconID() const {
  return IDR_INFOBAR_SAVE_PASSWORD;
}

InfoBarDelegate::Type SavePasswordInfoBarDelegate::GetInfoBarType() const {
  return PAGE_ACTION_TYPE;
}

string16 SavePasswordInfoBarDelegate::GetMessageText() const {
  return l10n_util::GetStringUTF16(IDS_PASSWORD_MANAGER_SAVE_PASSWORD_PROMPT);
}

string16 SavePasswordInfoBarDelegate::GetButtonLabel(
    InfoBarButton button) const {
  return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
      IDS_PASSWORD_MANAGER_SAVE_BUTTON : IDS_PASSWORD_MANAGER_BLACKLIST_BUTTON);
}

bool SavePasswordInfoBarDelegate::Accept() {
  DCHECK(form_to_save_.get());
  form_to_save_->Save();
  infobar_response_ = REMEMBER_PASSWORD;
  return true;
}

bool SavePasswordInfoBarDelegate::Cancel() {
  DCHECK(form_to_save_.get());
  form_to_save_->PermanentlyBlacklist();
  infobar_response_ = NEVER_REMEMBER_PASSWORD;
  return true;
}

void SavePasswordInfoBarDelegate::InfoBarDismissed() {
  DCHECK(form_to_save_.get());
  infobar_response_ = INFOBAR_DISMISSED;
}

InfoBarDelegate::InfoBarAutomationType
    SavePasswordInfoBarDelegate::GetInfoBarAutomationType() const {
  return PASSWORD_INFOBAR;
}


// PasswordManagerDelegateImpl ------------------------------------------------

DEFINE_WEB_CONTENTS_USER_DATA_KEY(PasswordManagerDelegateImpl);

PasswordManagerDelegateImpl::PasswordManagerDelegateImpl(
    content::WebContents* web_contents)
    : web_contents_(web_contents) {
}

PasswordManagerDelegateImpl::~PasswordManagerDelegateImpl() {
}

void PasswordManagerDelegateImpl::FillPasswordForm(
    const autofill::PasswordFormFillData& form_data) {
  web_contents_->GetRenderViewHost()->Send(
      new AutofillMsg_FillPasswordForm(
          web_contents_->GetRenderViewHost()->GetRoutingID(),
          form_data));
}

void PasswordManagerDelegateImpl::AddSavePasswordInfoBarIfPermitted(
    PasswordFormManager* form_to_save) {
  std::string uma_histogram_suffix(
      password_manager_metrics_util::GroupIdToString(
          password_manager_metrics_util::MonitoredDomainGroupId(
              form_to_save->realm(), GetProfile()->GetPrefs())));
  SavePasswordInfoBarDelegate::Create(
      web_contents_, form_to_save, uma_histogram_suffix);
}

Profile* PasswordManagerDelegateImpl::GetProfile() {
  return Profile::FromBrowserContext(web_contents_->GetBrowserContext());
}

bool PasswordManagerDelegateImpl::DidLastPageLoadEncounterSSLErrors() {
  content::NavigationEntry* entry =
      web_contents_->GetController().GetActiveEntry();
  if (!entry) {
    NOTREACHED();
    return false;
  }

  return net::IsCertStatusError(entry->GetSSL().cert_status);
}