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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/security_interstitials/content/security_interstitial_controller_client.h"
#include <utility>
#include "components/prefs/pref_service.h"
#include "components/safe_browsing/core/common/features.h"
#include "components/safe_browsing/core/common/safe_browsing_prefs.h"
#include "components/safe_browsing/core/common/safebrowsing_referral_methods.h"
#include "components/security_interstitials/content/security_interstitial_page.h"
#include "components/security_interstitials/content/security_interstitial_tab_helper.h"
#include "components/security_interstitials/content/settings_page_helper.h"
#include "components/security_interstitials/core/metrics_helper.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/referrer.h"
using content::Referrer;
namespace security_interstitials {
SecurityInterstitialControllerClient::SecurityInterstitialControllerClient(
content::WebContents* web_contents,
std::unique_ptr<MetricsHelper> metrics_helper,
PrefService* prefs,
const std::string& app_locale,
const GURL& default_safe_page,
std::unique_ptr<SettingsPageHelper> settings_page_helper)
: ControllerClient(std::move(metrics_helper)),
web_contents_(web_contents->GetWeakPtr()),
prefs_(prefs),
app_locale_(app_locale),
default_safe_page_(default_safe_page),
settings_page_helper_(std::move(settings_page_helper)) {}
SecurityInterstitialControllerClient::~SecurityInterstitialControllerClient() =
default;
void SecurityInterstitialControllerClient::GoBack() {
// TODO(crbug.com/40688528): This method is left so class can be non abstract
// since it is still instantiated in tests. This can be cleaned up by having
// tests use a subclass.
NOTREACHED();
}
bool SecurityInterstitialControllerClient::CanGoBack() {
return web_contents_->GetController().CanGoBack();
}
content::RenderFrameHost*
SecurityInterstitialControllerClient::InterstitialRenderFrameHost() const {
content::RenderFrameHost* render_frame_host =
web_contents_->GetPrimaryMainFrame();
security_interstitials::SecurityInterstitialTabHelper* helper =
security_interstitials::SecurityInterstitialTabHelper::FromWebContents(
web_contents_.get());
// Search to see if this SecurityInterstitialControllerClient is for a
// <webview> main frame. If it is, and it has a SecurityInterstitial matching
// this controller, use the NavigationController for the <webview>'s frame
// tree. Since, when kGuestViewMPArch is enabled, the <webview> isn't the
// primary main frame of a WebContents, we need to walk through the
// RenderFrameHosts to see if any of them (i) are for guests, and (ii) have an
// interstitial page showing whose controller matches this one. If no guest is
// found, then default to the WebContents' NavigationController.
web_contents_->ForEachRenderFrameHostWithAction(
[&render_frame_host, helper, this](content::RenderFrameHost* rfh) {
if (rfh->GetSiteInstance()->IsGuest()) {
// Only consider `rfh` if it's for a guest.
if (auto* blocking_page =
helper->GetBlockingPageForFrame(rfh->GetFrameTreeNodeId())) {
if (blocking_page->controller() == this) {
// Verify that `rfh` is a main frame for the guest.
CHECK_EQ(nullptr, rfh->GetParent());
// `this` corresponds to an interstitial page being shown in a
// guest frame, so return `rfh`.
render_frame_host = rfh;
return content::RenderFrameHost::FrameIterationAction::kStop;
}
}
}
return content::RenderFrameHost::FrameIterationAction::kContinue;
});
return render_frame_host;
}
void SecurityInterstitialControllerClient::GoBackAfterNavigationCommitted() {
// If the offending entry has committed, go back or to a safe page without
// closing the error page. This error page will be closed when the new page
// commits.
content::RenderFrameHost* render_frame_host = InterstitialRenderFrameHost();
auto& controller = render_frame_host->GetController();
if (controller.CanGoBack()) {
controller.GoBack();
} else {
// For <webview> tags (also known as guests), use about:blank as the
// default safe page. This is because unlike a normal WebContents, guests
// cannot load pages like WebUI, including the NTP, which is often used as
// the default safe page here.
GURL url_to_load = render_frame_host->GetSiteInstance()->IsGuest()
? GURL(url::kAboutBlankURL)
: default_safe_page_;
controller.LoadURL(url_to_load, content::Referrer(),
ui::PAGE_TRANSITION_AUTO_TOPLEVEL, std::string());
}
}
void SecurityInterstitialControllerClient::Proceed() {
// TODO(crbug.com/40688528): This method is left so class can be non abstract
// since it is still instantiated in tests. This can be cleaned up by having
// tests use a subclass.
NOTREACHED();
}
void SecurityInterstitialControllerClient::Reload() {
InterstitialRenderFrameHost()->GetController().Reload(
content::ReloadType::NORMAL, true);
}
void SecurityInterstitialControllerClient::OpenUrlInCurrentTab(
const GURL& url) {
content::OpenURLParams params(url, Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_LINK, false);
web_contents_->OpenURL(params, /*navigation_handle_callback=*/{});
}
void SecurityInterstitialControllerClient::OpenUrlInNewForegroundTab(
const GURL& url) {
content::OpenURLParams params(url, Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_LINK, false);
web_contents_->OpenURL(params, /*navigation_handle_callback=*/{});
}
void SecurityInterstitialControllerClient::OpenEnhancedProtectionSettings() {
#if BUILDFLAG(IS_ANDROID)
settings_page_helper_->OpenEnhancedProtectionSettings(&*web_contents_);
#else
settings_page_helper_->OpenEnhancedProtectionSettingsWithIph(
&*web_contents_,
safe_browsing::SafeBrowsingSettingReferralMethod::kSecurityInterstitial);
#endif
}
#if BUILDFLAG(IS_ANDROID)
void SecurityInterstitialControllerClient::OpenAdvancedProtectionSettings() {
settings_page_helper_->OpenAdvancedProtectionSettings(*web_contents_);
}
#endif
const std::string& SecurityInterstitialControllerClient::GetApplicationLocale()
const {
return app_locale_;
}
PrefService* SecurityInterstitialControllerClient::GetPrefService() {
return prefs_;
}
const std::string
SecurityInterstitialControllerClient::GetExtendedReportingPrefName() const {
return prefs::kSafeBrowsingScoutReportingEnabled;
}
bool SecurityInterstitialControllerClient::CanLaunchDateAndTimeSettings() {
NOTREACHED();
}
void SecurityInterstitialControllerClient::LaunchDateAndTimeSettings() {
NOTREACHED();
}
bool SecurityInterstitialControllerClient::CanGoBackBeforeNavigation() {
// If checking before navigating to the interstitial, back to safety is
// possible if the current entry is not the initial NavigationEtry. This
// preserves old behavior to when we return nullptr instead of the initial
// entry when no navigation has committed.
return !web_contents_->GetController()
.GetLastCommittedEntry()
->IsInitialEntry();
}
} // namespace security_interstitials
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