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// Copyright (c) 2015 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 "chrome/browser/content_settings/content_settings_supervised_provider.h"
#include <string>
#include <utility>
#include <vector>
#include "chrome/browser/supervised_user/supervised_user_constants.h"
#include "chrome/browser/supervised_user/supervised_user_settings_service.h"
namespace {
struct ContentSettingsFromSupervisedSettingsEntry {
const char* setting_name;
ContentSettingsType content_type;
};
const ContentSettingsFromSupervisedSettingsEntry
kContentSettingsFromSupervisedSettingsMap[] = {
{
supervised_users::kGeolocationDisabled,
CONTENT_SETTINGS_TYPE_GEOLOCATION,
}, {
supervised_users::kCameraMicDisabled,
CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
}, {
supervised_users::kCameraMicDisabled,
CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
}
};
} // namespace
namespace content_settings {
SupervisedProvider::SupervisedProvider(
SupervisedUserSettingsService* supervised_user_settings_service) {
// The SupervisedProvider is owned by the HostContentSettingsMap which
// DependsOn the SupervisedUserSettingsService (through their factories).
// This means this will get destroyed before the SUSS and will be
// unsubscribed from it.
user_settings_subscription_ = supervised_user_settings_service->Subscribe(
base::Bind(
&content_settings::SupervisedProvider::OnSupervisedSettingsAvailable,
base::Unretained(this)));
}
SupervisedProvider::~SupervisedProvider() {
}
scoped_ptr<RuleIterator> SupervisedProvider::GetRuleIterator(
ContentSettingsType content_type,
const ResourceIdentifier& resource_identifier,
bool incognito) const {
scoped_ptr<base::AutoLock> auto_lock(new base::AutoLock(lock_));
return value_map_.GetRuleIterator(content_type, resource_identifier,
std::move(auto_lock));
}
void SupervisedProvider::OnSupervisedSettingsAvailable(
const base::DictionaryValue* settings) {
std::vector<ContentSettingsType> to_notify;
// Entering locked scope to update content settings.
{
base::AutoLock auto_lock(lock_);
for (const auto& entry : kContentSettingsFromSupervisedSettingsMap) {
bool new_value = false;
if (settings && settings->HasKey(entry.setting_name)) {
bool is_bool = settings->GetBoolean(entry.setting_name, &new_value);
DCHECK(is_bool);
}
bool old_value = !value_map_.IsContentSettingEnabled(entry.content_type);
if (new_value != old_value) {
to_notify.push_back(entry.content_type);
value_map_.SetContentSettingDisabled(entry.content_type, new_value);
}
}
}
for (const auto& notification : to_notify) {
NotifyObservers(ContentSettingsPattern(), ContentSettingsPattern(),
notification, std::string());
}
}
// Since the SupervisedProvider is a read only content settings provider, all
// methods of the ProviderInterface that set or delete any settings do nothing.
bool SupervisedProvider::SetWebsiteSetting(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsType content_type,
const ResourceIdentifier& resource_identifier,
base::Value* value) {
return false;
}
void SupervisedProvider::ClearAllContentSettingsRules(
ContentSettingsType content_type) {
}
void SupervisedProvider::ShutdownOnUIThread() {
DCHECK(CalledOnValidThread());
RemoveAllObservers();
user_settings_subscription_.reset();
}
} // namespace content_settings
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