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// Copyright 2021 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 "components/accuracy_tips/accuracy_web_contents_observer.h"
#include "base/feature_list.h"
#include "base/metrics/histogram_macros.h"
#include "components/accuracy_tips/accuracy_service.h"
#include "components/accuracy_tips/accuracy_tip_status.h"
#include "components/safe_browsing/core/common/features.h"
#include "components/ukm/content/source_url_recorder.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/common/page_visibility_state.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "url/gurl.h"
namespace accuracy_tips {
// static
bool AccuracyWebContentsObserver::IsEnabled(
content::WebContents* web_contents) {
return base::FeatureList::IsEnabled(safe_browsing::kAccuracyTipsFeature) &&
!web_contents->GetBrowserContext()->IsOffTheRecord();
}
AccuracyWebContentsObserver::~AccuracyWebContentsObserver() = default;
AccuracyWebContentsObserver::AccuracyWebContentsObserver(
content::WebContents* web_contents,
AccuracyService* accuracy_service)
: WebContentsObserver(web_contents),
content::WebContentsUserData<AccuracyWebContentsObserver>(*web_contents),
accuracy_service_(accuracy_service) {
DCHECK(!web_contents->GetBrowserContext()->IsOffTheRecord());
DCHECK(accuracy_service);
}
void AccuracyWebContentsObserver::DidFinishNavigation(
content::NavigationHandle* navigation) {
if (!navigation->IsInPrimaryMainFrame() || navigation->IsSameDocument() ||
!navigation->HasCommitted() || navigation->IsErrorPage()) {
return;
}
if (web_contents()->GetMainFrame()->GetVisibilityState() !=
content::PageVisibilityState::kVisible) {
return;
}
const GURL& url = web_contents()->GetLastCommittedURL();
if (!url.SchemeIsHTTPOrHTTPS()) {
return;
}
accuracy_service_->CheckAccuracyStatus(
url,
base::BindOnce(&AccuracyWebContentsObserver::OnAccuracyStatusObtained,
weak_factory_.GetWeakPtr(), url));
}
void AccuracyWebContentsObserver::OnAccuracyStatusObtained(
const GURL& url,
AccuracyTipStatus result) {
// We are not on this site any more, so the result is invalid.
if (url != web_contents()->GetLastCommittedURL())
return;
// Don't show tip on insecure pages. This can't be checked in the
// AccuracyService because it requires a WebContents.
if (result == AccuracyTipStatus::kShowAccuracyTip &&
!accuracy_service_->IsSecureConnection(web_contents())) {
result = AccuracyTipStatus::kNotSecure;
}
UMA_HISTOGRAM_ENUMERATION("Privacy.AccuracyTip.PageStatus", result);
ukm::builders::AccuracyTipStatus(
ukm::GetSourceIdForWebContentsDocument(web_contents()))
.SetStatus(static_cast<int>(result))
.Record(ukm::UkmRecorder::Get());
if (result != AccuracyTipStatus::kShowAccuracyTip)
return;
accuracy_service_->MaybeShowAccuracyTip(web_contents());
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(AccuracyWebContentsObserver);
} // namespace accuracy_tips
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