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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/content_settings/generated_cookie_prefs.h"
#include "base/notreached.h"
#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/extensions/api/settings_private.h"
#include "components/content_settings/core/browser/cookie_settings.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/pref_names.h"
#include "components/prefs/pref_service.h"
namespace content_settings {
namespace {
namespace settings_api = ::extensions::api::settings_private;
namespace settings_private = ::extensions::settings_private;
using settings_api::ControlledBy;
using enum settings_api::Enforcement;
bool IsDefaultCookieContentSettingUserControlled(HostContentSettingsMap* map) {
content_settings::ProviderType content_setting_provider;
map->GetDefaultContentSetting(ContentSettingsType::COOKIES,
&content_setting_provider);
auto content_setting_source =
content_settings::GetSettingSourceFromProviderType(
content_setting_provider);
return content_setting_source == SettingSource::kUser;
}
settings_api::Enforcement GetEnforcement(
const PrefService::Preference* cookie_controls_mode_pref) {
if (cookie_controls_mode_pref->IsManaged() ||
cookie_controls_mode_pref->IsExtensionControlled()) {
return kEnforced;
}
if (cookie_controls_mode_pref->IsManagedByCustodian()) {
return kParentSupervised;
}
if (cookie_controls_mode_pref->IsRecommended()) {
return kRecommended;
}
return settings_api::Enforcement::kNone;
}
} // namespace
const char kCookieDefaultContentSetting[] =
"generated.cookie_default_content_setting";
const char kThirdPartyCookieBlockingSetting[] =
"generated.third_party_cookie_blocking_setting";
GeneratedCookieDefaultContentSettingPref::
GeneratedCookieDefaultContentSettingPref(Profile* profile)
: profile_(profile) {
host_content_settings_map_ =
HostContentSettingsMapFactory::GetForProfile(profile_);
content_settings_observation_.Observe(host_content_settings_map_.get());
}
GeneratedCookieDefaultContentSettingPref::
~GeneratedCookieDefaultContentSettingPref() = default;
void GeneratedCookieDefaultContentSettingPref::OnContentSettingChanged(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsTypeSet content_type_set) {
if (content_type_set.Contains(ContentSettingsType::COOKIES)) {
NotifyObservers(kCookieDefaultContentSetting);
}
}
extensions::settings_private::SetPrefResult
GeneratedCookieDefaultContentSettingPref::SetPref(const base::Value* value) {
if (!value->is_string()) {
return extensions::settings_private::SetPrefResult::PREF_TYPE_MISMATCH;
}
ContentSetting setting;
if (!content_settings::ContentSettingFromString(value->GetString(),
&setting)) {
return extensions::settings_private::SetPrefResult::PREF_TYPE_MISMATCH;
}
if (setting != CONTENT_SETTING_ALLOW &&
setting != CONTENT_SETTING_SESSION_ONLY &&
setting != CONTENT_SETTING_BLOCK) {
return extensions::settings_private::SetPrefResult::PREF_TYPE_MISMATCH;
}
if (!IsDefaultCookieContentSettingUserControlled(
host_content_settings_map_)) {
return extensions::settings_private::SetPrefResult::PREF_NOT_MODIFIABLE;
}
host_content_settings_map_->SetDefaultContentSetting(
ContentSettingsType::COOKIES, static_cast<ContentSetting>(setting));
return extensions::settings_private::SetPrefResult::SUCCESS;
}
settings_api::PrefObject
GeneratedCookieDefaultContentSettingPref::GetPrefObject() const {
settings_api::PrefObject pref_object;
pref_object.key = kCookieDefaultContentSetting;
pref_object.type = settings_api::PrefType::kString;
content_settings::ProviderType content_setting_provider;
auto content_setting = host_content_settings_map_->GetDefaultContentSetting(
ContentSettingsType::COOKIES, &content_setting_provider);
pref_object.value =
base::Value(content_settings::ContentSettingToString(content_setting));
// Cookies content setting can be managed via policy, extension or
// supervision, but cannot be recommended.
auto content_setting_source =
content_settings::GetSettingSourceFromProviderType(
content_setting_provider);
if (content_setting_source == SettingSource::kPolicy) {
pref_object.controlled_by = ControlledBy::kDevicePolicy;
pref_object.enforcement = kEnforced;
}
if (content_setting_source == SettingSource::kExtension) {
pref_object.controlled_by = ControlledBy::kExtension;
pref_object.enforcement = kEnforced;
}
if (content_setting_source == SettingSource::kSupervised) {
pref_object.controlled_by = ControlledBy::kChildRestriction;
pref_object.enforcement = kEnforced;
}
return pref_object;
}
GeneratedThirdPartyCookieBlockingSettingPref::
GeneratedThirdPartyCookieBlockingSettingPref(Profile* profile)
: profile_(profile) {
user_prefs_registrar_.Init(profile->GetPrefs());
user_prefs_registrar_.Add(
prefs::kCookieControlsMode,
base::BindRepeating(&GeneratedThirdPartyCookieBlockingSettingPref::
OnSourcePreferencesChanged,
base::Unretained(this)));
}
GeneratedThirdPartyCookieBlockingSettingPref::
~GeneratedThirdPartyCookieBlockingSettingPref() = default;
ThirdPartyCookieBlockingSetting
GeneratedThirdPartyCookieBlockingSettingPref::GetValue() const {
switch (static_cast<CookieControlsMode>(
profile_->GetPrefs()->GetInteger(prefs::kCookieControlsMode))) {
case CookieControlsMode::kBlockThirdParty:
return ThirdPartyCookieBlockingSetting::BLOCK_THIRD_PARTY;
default:
return ThirdPartyCookieBlockingSetting::INCOGNITO_ONLY;
}
}
extensions::settings_private::SetPrefResult
GeneratedThirdPartyCookieBlockingSettingPref::SetPrefResult(
CookieControlsMode value) {
profile_->GetPrefs()->SetInteger(prefs::kCookieControlsMode,
static_cast<int>(value));
return extensions::settings_private::SetPrefResult::SUCCESS;
}
extensions::settings_private::SetPrefResult
GeneratedThirdPartyCookieBlockingSettingPref::SetPref(
const base::Value* value) {
if (!value->is_int()) {
return extensions::settings_private::SetPrefResult::PREF_TYPE_MISMATCH;
}
if (!profile_->GetPrefs()
->FindPreference(prefs::kCookieControlsMode)
->IsUserModifiable()) {
return extensions::settings_private::SetPrefResult::PREF_NOT_MODIFIABLE;
}
switch (static_cast<ThirdPartyCookieBlockingSetting>(value->GetInt())) {
case ThirdPartyCookieBlockingSetting::INCOGNITO_ONLY:
return SetPrefResult(CookieControlsMode::kIncognitoOnly);
case ThirdPartyCookieBlockingSetting::BLOCK_THIRD_PARTY:
return SetPrefResult(CookieControlsMode::kBlockThirdParty);
default:
return extensions::settings_private::SetPrefResult::PREF_TYPE_MISMATCH;
}
}
settings_api::PrefObject
GeneratedThirdPartyCookieBlockingSettingPref::GetPrefObject() const {
settings_api::PrefObject pref_object;
const PrefService::Preference* cookie_controls_mode_pref =
profile_->GetPrefs()->FindPreference(prefs::kCookieControlsMode);
pref_object.key = kThirdPartyCookieBlockingSetting;
pref_object.type = settings_api::PrefType::kNumber;
pref_object.value = base::Value(static_cast<int>(GetValue()));
pref_object.enforcement = GetEnforcement(cookie_controls_mode_pref);
if (!cookie_controls_mode_pref->IsUserModifiable()) {
GeneratedPref::ApplyControlledByFromPref(&pref_object,
cookie_controls_mode_pref);
}
return pref_object;
}
void GeneratedThirdPartyCookieBlockingSettingPref::
OnSourcePreferencesChanged() {
NotifyObservers(kThirdPartyCookieBlockingSetting);
}
} // namespace content_settings
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