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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_POLICY_CONTENT_POLICY_BLOCKLIST_NAVIGATION_THROTTLE_H_
#define COMPONENTS_POLICY_CONTENT_POLICY_BLOCKLIST_NAVIGATION_THROTTLE_H_
#include "base/gtest_prod_util.h"
#include "base/time/time.h"
#include "content/public/browser/navigation_throttle.h"
class GURL;
class PolicyBlocklistService;
class PrefService;
namespace content {
class BrowserContext;
class NavigationThrottleRegistry;
} // namespace content
// PolicyBlocklistNavigationThrottle provides a simple way to block a navigation
// based on the URLBlocklistManager and Safe Search API. If the URL is on the
// blocklist or allowlist, the throttle will immediately block or allow the
// navigation. Otherwise, the URL will be checked against the Safe Search API if
// the SafeSitesFilterBehavior policy is enabled. This final check may be
// asynchronous if the result hasn't been cached yet.
class PolicyBlocklistNavigationThrottle : public content::NavigationThrottle {
public:
PolicyBlocklistNavigationThrottle(
content::NavigationThrottleRegistry& registry,
content::BrowserContext* context);
PolicyBlocklistNavigationThrottle(const PolicyBlocklistNavigationThrottle&) =
delete;
PolicyBlocklistNavigationThrottle& operator=(
const PolicyBlocklistNavigationThrottle&) = delete;
~PolicyBlocklistNavigationThrottle() override;
// NavigationThrottle overrides.
ThrottleCheckResult WillStartRequest() override;
ThrottleCheckResult WillRedirectRequest() override;
ThrottleCheckResult WillProcessResponse() override;
const char* GetNameForLogging() override;
private:
FRIEND_TEST_ALL_PREFIXES(PolicyBlocklistNavigationThrottleTest, Blocklist);
FRIEND_TEST_ALL_PREFIXES(PolicyBlocklistNavigationThrottleTest, Allowlist);
FRIEND_TEST_ALL_PREFIXES(PolicyBlocklistNavigationThrottleTest,
SafeSites_Safe);
FRIEND_TEST_ALL_PREFIXES(PolicyBlocklistNavigationThrottleTest,
SafeSites_Porn);
// Returns TRUE if this navigation is to view-source: and view-source is on
// the URLBlocklist.
bool IsBlockedViewSourceNavigation();
// To ensure both allow and block policies override Safe Sites,
// SafeSitesNavigationThrottle must be consulted as part of this throttle
// rather than added separately to the list of throttles.
ThrottleCheckResult CheckSafeSitesFilter(const GURL& url, bool is_redirect);
void OnDeferredSafeSitesResult(bool proceed,
std::optional<ThrottleCheckResult> result);
ThrottleCheckResult WillStartOrRedirectRequest(bool is_redirect);
std::unique_ptr<content::NavigationThrottle> safe_sites_navigation_throttle_;
raw_ptr<PolicyBlocklistService, DanglingUntriaged> blocklist_service_;
raw_ptr<PrefService> prefs_;
};
#endif // COMPONENTS_POLICY_CONTENT_POLICY_BLOCKLIST_NAVIGATION_THROTTLE_H_
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