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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/supervised_user/supervised_user_verification_page.h"
#include <utility>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "base/strings/string_number_conversions.h"
#include "chrome/browser/signin/signin_promo.h"
#include "components/grit/components_resources.h"
#include "components/security_interstitials/content/security_interstitial_controller_client.h"
#include "components/security_interstitials/core/common_string_util.h"
#include "components/strings/grit/components_strings.h"
#include "components/tabs/public/tab_interface.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/referrer.h"
#include "google_apis/gaia/gaia_urls.h"
#include "services/metrics/public/cpp/metrics_utils.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "ui/base/l10n/l10n_util.h"
// static
bool SupervisedUserVerificationPage::ShouldShowPage(
const supervised_user::ChildAccountService& child_account_service) {
switch (child_account_service.GetGoogleAuthState()) {
case supervised_user::ChildAccountService::AuthState::NOT_AUTHENTICATED:
case supervised_user::ChildAccountService::AuthState::AUTHENTICATED:
// The user is fully signed out or fully signed in. Don't show the
// interstitial.
return false;
case supervised_user::ChildAccountService::AuthState::PENDING:
case supervised_user::ChildAccountService::AuthState::
TRANSIENT_MOVING_TO_AUTHENTICATED:
// The user is in a stable pending state, or a transient state. Show the
// interstitial, as a parent approval request or YouTube visit would not
// be successful with the correct behavior.
//
// In the transient case, an update to AUTHENTICATED state may shortly
// follow, which will trigger this interstitial to be refreshed.
return true;
}
}
// static
FamilyLinkUserReauthenticationInterstitialState
SupervisedUserVerificationPage::GetReauthenticationInterstitialStateFromStatus(
Status status) {
switch (status) {
case Status::SHOWN:
return FamilyLinkUserReauthenticationInterstitialState::kInterstitialShown;
case Status::REAUTH_STARTED:
return FamilyLinkUserReauthenticationInterstitialState::kReauthenticationStarted;
case Status::REAUTH_COMPLETED:
return FamilyLinkUserReauthenticationInterstitialState::kReauthenticationCompleted;
default:
NOTREACHED();
}
}
SupervisedUserVerificationPage::SupervisedUserVerificationPage(
content::WebContents* web_contents,
const std::string& email_to_reauth,
const GURL& request_url,
supervised_user::ChildAccountService* child_account_service,
std::unique_ptr<
security_interstitials::SecurityInterstitialControllerClient>
controller_client)
: security_interstitials::SecurityInterstitialPage(
web_contents,
request_url,
std::move(controller_client)),
email_to_reauth_(email_to_reauth),
request_url_(request_url),
sign_in_continue_url_(GaiaUrls::GetInstance()->blank_page_url()),
reauth_url_(signin::GetChromeReauthURL(
{.email = email_to_reauth_, .continue_url = sign_in_continue_url_})),
child_account_service_(child_account_service) {
if (child_account_service_) {
// Reloads the interstitial to continue navigation once the supervised user
// is authenticated. Also closes the sign-in tabs opened by this
// interstitial.
google_auth_state_subscription_ =
child_account_service_->ObserveGoogleAuthState(base::BindRepeating(
&SupervisedUserVerificationPage::OnGoogleAuthStateUpdate,
weak_factory_.GetWeakPtr()));
}
}
SupervisedUserVerificationPage::~SupervisedUserVerificationPage() = default;
void SupervisedUserVerificationPage::CloseSignInTabs() {
if (signin_tabs_handle_list_.empty()) {
return;
}
while (!signin_tabs_handle_list_.empty()) {
const tabs::TabHandle tab_handle = signin_tabs_handle_list_.front();
signin_tabs_handle_list_.pop_front();
// Obtains the tab associated with the unique tab handle id. A tab pointer
// is only returned if the tab is still valid.
tabs::TabInterface* const tab_interface = tab_handle.Get();
if (!tab_interface) {
continue;
}
// Check both visible url and last committed url, as the last committed url
// can be empty (if the navigation of the sign-in tab has not yet
// committed).
// Only urls that are known to be part of the sign-in flow will be closed,
// the rest will be left open as the user might have navigated elsewhere.
if (!IsSignInUrl(tab_interface->GetContents()->GetLastCommittedURL()) &&
!IsSignInUrl(tab_interface->GetContents()->GetVisibleURL())) {
continue;
}
tab_interface->Close();
}
}
bool SupervisedUserVerificationPage::IsSignInUrl(const GURL& url) {
if (!url.is_valid()) {
return false;
}
return url.host_piece() == reauth_url_.host_piece() ||
url.host_piece() == sign_in_continue_url_.host_piece();
}
void SupervisedUserVerificationPage::OnGoogleAuthStateUpdate() {
// This callback doesn't guarantee that the state has changed, or that it has
// transitioned to fully signed in.
// If we're still in a state where we should be showing this interstitial,
// drop out.
CHECK(child_account_service_);
if (ShouldShowPage(*child_account_service_)) {
return;
}
// Re-authentication metrics will be recorded in the destructor, since this
// method could be invoked more than once.
is_reauth_completed_ = true;
CloseSignInTabs();
controller()->Reload();
}
void SupervisedUserVerificationPage::OnInterstitialClosing() {}
int SupervisedUserVerificationPage::GetHTMLTemplateId() {
return IDR_SECURITY_INTERSTITIAL_HTML;
}
void SupervisedUserVerificationPage::PopulateCommonStrings(
base::Value::Dict& load_time_data) {
load_time_data.Set("overridable", false);
load_time_data.Set("hide_primary_button", false);
load_time_data.Set("openDetails", "");
load_time_data.Set("explanationParagraph", "");
load_time_data.Set("finalParagraph", "");
load_time_data.Set("optInLink", l10n_util::GetStringUTF16(
IDS_SAFE_BROWSING_SCOUT_REPORTING_AGREE));
load_time_data.Set(
"enhancedProtectionMessage",
l10n_util::GetStringUTF16(IDS_SAFE_BROWSING_ENHANCED_PROTECTION_MESSAGE));
}
bool SupervisedUserVerificationPage::IsReauthCompleted() {
return is_reauth_completed_;
}
void SupervisedUserVerificationPage::CommandReceived(
const std::string& command) {
if (command == "\"pageLoadComplete\"") {
// content::WaitForRenderFrameReady sends this message when the page
// load completes. Ignore it.
return;
}
int cmd = 0;
bool retval = base::StringToInt(command, &cmd);
DCHECK(retval);
switch (cmd) {
case security_interstitials::CMD_OPEN_LOGIN: {
RecordReauthStatusMetrics(Status::REAUTH_STARTED);
content::OpenURLParams params(reauth_url_, content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_LINK, false);
auto* signin_web_contents =
SecurityInterstitialPage::web_contents()->OpenURL(
params, /*navigation_handle_callback=*/{});
if (signin_web_contents) {
tabs::TabInterface* tab_interface =
tabs::TabInterface::GetFromContents(signin_web_contents);
signin_tabs_handle_list_.emplace_back(tab_interface->GetHandle());
}
break;
}
case security_interstitials::CMD_DONT_PROCEED:
case security_interstitials::CMD_OPEN_HELP_CENTER:
case security_interstitials::CMD_PROCEED:
case security_interstitials::CMD_DO_REPORT:
case security_interstitials::CMD_DONT_REPORT:
case security_interstitials::CMD_SHOW_MORE_SECTION:
case security_interstitials::CMD_OPEN_DATE_SETTINGS:
case security_interstitials::CMD_OPEN_REPORTING_PRIVACY:
case security_interstitials::CMD_OPEN_WHITEPAPER:
case security_interstitials::CMD_RELOAD:
case security_interstitials::CMD_OPEN_DIAGNOSTIC:
case security_interstitials::CMD_REPORT_PHISHING_ERROR:
// Not supported by the verification page.
NOTREACHED() << "Unsupported command: " << command;
case security_interstitials::CMD_ERROR:
case security_interstitials::CMD_TEXT_FOUND:
case security_interstitials::CMD_TEXT_NOT_FOUND:
// Commands are for testing.
break;
default:
NOTREACHED();
}
}
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