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// Copyright 2012 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/safe_browsing/content/browser/safe_browsing_tab_observer.h"
#include "base/functional/bind.h"
#include "components/prefs/pref_service.h"
#include "components/safe_browsing/buildflags.h"
#include "components/safe_browsing/content/browser/client_side_detection_host.h"
#include "components/safe_browsing/content/browser/client_side_detection_service.h"
#include "content/public/browser/web_contents.h"
namespace safe_browsing {
SafeBrowsingTabObserver::SafeBrowsingTabObserver(
content::WebContents* web_contents,
std::unique_ptr<Delegate> delegate)
: content::WebContentsUserData<SafeBrowsingTabObserver>(*web_contents),
delegate_(std::move(delegate)) {
auto* browser_context = web_contents->GetBrowserContext();
PrefService* prefs = delegate_->GetPrefs(browser_context);
if (prefs) {
pref_change_registrar_.Init(prefs);
pref_change_registrar_.Add(
prefs::kSafeBrowsingEnabled,
base::BindRepeating(
&SafeBrowsingTabObserver::UpdateSafebrowsingDetectionHost,
base::Unretained(this)));
ClientSideDetectionService* csd_service =
delegate_->GetClientSideDetectionServiceIfExists(browser_context);
if (IsSafeBrowsingEnabled(*prefs) &&
delegate_->DoesSafeBrowsingServiceExist() && csd_service) {
safebrowsing_detection_host_ =
delegate_->CreateClientSideDetectionHost(web_contents);
}
}
}
SafeBrowsingTabObserver::~SafeBrowsingTabObserver() = default;
////////////////////////////////////////////////////////////////////////////////
// Internal helpers
void SafeBrowsingTabObserver::UpdateSafebrowsingDetectionHost() {
auto* browser_context = GetWebContents().GetBrowserContext();
PrefService* prefs = delegate_->GetPrefs(browser_context);
bool safe_browsing = IsSafeBrowsingEnabled(*prefs);
ClientSideDetectionService* csd_service =
delegate_->GetClientSideDetectionServiceIfExists(browser_context);
if (safe_browsing && csd_service) {
if (!safebrowsing_detection_host_.get()) {
safebrowsing_detection_host_ =
delegate_->CreateClientSideDetectionHost(&GetWebContents());
}
} else {
safebrowsing_detection_host_.reset();
}
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(SafeBrowsingTabObserver);
} // namespace safe_browsing
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