chromium/components/policy/content/policy_blocklist_navigation_throttle.cc

// 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.

#include "components/policy/content/policy_blocklist_navigation_throttle.h"

#include "base/check_op.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "components/policy/content/policy_blocklist_service.h"
#include "components/policy/core/browser/url_blocklist_manager.h"
#include "components/policy/core/browser/url_blocklist_policy_handler.h"
#include "components/policy/core/common/policy_pref_names.h"
#include "components/prefs/pref_service.h"
#include "components/user_prefs/user_prefs.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/navigation_handle.h"
#include "url/gurl.h"

URLBlocklistState;
SafeSitesFilterBehavior;

// Passing an Unretained pointer for the safe_sites_navigation_throttle_
// callback is safe because this object owns safe_sites_navigation_throttle_,
// which runs the callback from within the object.
PolicyBlocklistNavigationThrottle::PolicyBlocklistNavigationThrottle(
    content::NavigationHandle* navigation_handle,
    content::BrowserContext* context)
    : … { … }

PolicyBlocklistNavigationThrottle::~PolicyBlocklistNavigationThrottle() { … }

bool PolicyBlocklistNavigationThrottle::IsBlockedViewSourceNavigation() { … }

content::NavigationThrottle::ThrottleCheckResult
PolicyBlocklistNavigationThrottle::WillStartRequest() { … }

// SafeSitesNavigationThrottle is unconditional and does not check PrefService
// because it is used outside //chrome. Therefore, the policy must be checked
// here to determine whether to use SafeSitesNavigationThrottle.
content::NavigationThrottle::ThrottleCheckResult
PolicyBlocklistNavigationThrottle::CheckSafeSitesFilter(const GURL& url) { … }

content::NavigationThrottle::ThrottleCheckResult
PolicyBlocklistNavigationThrottle::WillRedirectRequest() { … }

content::NavigationThrottle::ThrottleCheckResult
PolicyBlocklistNavigationThrottle::WillProcessResponse() { … }

const char* PolicyBlocklistNavigationThrottle::GetNameForLogging() { … }

void PolicyBlocklistNavigationThrottle::OnDeferredSafeSitesResult(
    bool is_safe,
    ThrottleCheckResult cancel_result) { … }

void PolicyBlocklistNavigationThrottle::UpdateRequestThrottleAction(
    content::NavigationThrottle::ThrottleAction action) { … }