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// Copyright 2019 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/ash/printing/enterprise/calculators_policies_binder.h"
#include <list>
#include <map>
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ash/printing/enterprise/bulk_printers_calculator.h"
#include "chrome/browser/ash/printing/enterprise/bulk_printers_calculator_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
#include "chromeos/ash/components/settings/cros_settings.h"
#include "chromeos/ash/components/settings/cros_settings_names.h"
#include "components/prefs/pref_change_registrar.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/user_manager/user.h"
namespace ash {
namespace {
BulkPrintersCalculator::AccessMode ConvertToAccessMode(int mode_val) {
if (mode_val >= BulkPrintersCalculator::BLOCKLIST_ONLY &&
mode_val <= BulkPrintersCalculator::ALL_ACCESS) {
return static_cast<BulkPrintersCalculator::AccessMode>(mode_val);
}
// Error occurred, let's return the default value.
LOG(ERROR) << "Unrecognized access mode";
return BulkPrintersCalculator::ALL_ACCESS;
}
std::vector<std::string> ConvertToVector(const base::Value::List& list) {
std::vector<std::string> string_list;
for (const base::Value& value : list) {
if (value.is_string()) {
string_list.push_back(value.GetString());
}
}
return string_list;
}
class PrefBinder : public CalculatorsPoliciesBinder {
public:
PrefBinder(PrefService* pref_service,
base::WeakPtr<BulkPrintersCalculator> calculator)
: CalculatorsPoliciesBinder(prefs::kRecommendedPrintersAccessMode,
prefs::kRecommendedPrintersBlocklist,
prefs::kRecommendedPrintersAllowlist,
calculator),
prefs_(pref_service) {
pref_change_registrar_.Init(prefs_);
}
protected:
void Bind(const char* policy_name, base::RepeatingClosure closure) override {
DVLOG(1) << "Binding " << policy_name;
pref_change_registrar_.Add(policy_name, closure);
}
int GetAccessMode(const char* name) const override {
return prefs_->GetInteger(name);
}
std::vector<std::string> GetStringList(const char* name) const override {
return ConvertToVector(prefs_->GetList(name));
}
private:
raw_ptr<PrefService> prefs_;
PrefChangeRegistrar pref_change_registrar_;
};
class SettingsBinder : public CalculatorsPoliciesBinder {
public:
SettingsBinder(CrosSettings* settings,
base::WeakPtr<BulkPrintersCalculator> calculator)
: CalculatorsPoliciesBinder(kDevicePrintersAccessMode,
kDevicePrintersBlocklist,
kDevicePrintersAllowlist,
calculator),
settings_(settings) {}
protected:
void Bind(const char* policy_name, base::RepeatingClosure closure) override {
DVLOG(1) << "Bind device setting: " << policy_name;
subscriptions_.push_back(
settings_->AddSettingsObserver(policy_name, closure));
}
int GetAccessMode(const char* name) const override {
int mode_val;
if (!settings_->GetInteger(name, &mode_val)) {
mode_val = BulkPrintersCalculator::AccessMode::UNSET;
}
DVLOG(1) << "Device access mode: " << mode_val;
return mode_val;
}
std::vector<std::string> GetStringList(const char* name) const override {
const base::Value* pref = settings_->GetPref(name);
return pref && pref->is_list() ? ConvertToVector(pref->GetList())
: std::vector<std::string>();
}
private:
raw_ptr<CrosSettings> settings_;
std::list<base::CallbackListSubscription> subscriptions_;
};
} // namespace
// static
void CalculatorsPoliciesBinder::RegisterProfilePrefs(
PrefRegistrySimple* registry) {
// Default value for access mode is AllAccess.
registry->RegisterIntegerPref(prefs::kRecommendedPrintersAccessMode,
BulkPrintersCalculator::ALL_ACCESS);
registry->RegisterListPref(prefs::kRecommendedPrintersBlocklist);
registry->RegisterListPref(prefs::kRecommendedPrintersAllowlist);
}
// static
std::unique_ptr<CalculatorsPoliciesBinder>
CalculatorsPoliciesBinder::DeviceBinder(
CrosSettings* settings,
base::WeakPtr<BulkPrintersCalculator> calculator) {
auto binder = std::make_unique<SettingsBinder>(settings, calculator);
binder->Init();
return binder;
}
// static
std::unique_ptr<CalculatorsPoliciesBinder>
CalculatorsPoliciesBinder::UserBinder(
PrefService* prefs,
base::WeakPtr<BulkPrintersCalculator> calculator) {
auto binder = std::make_unique<PrefBinder>(prefs, calculator);
binder->Init();
return binder;
}
CalculatorsPoliciesBinder::CalculatorsPoliciesBinder(
const char* access_mode_name,
const char* blocklist_name,
const char* allowlist_name,
base::WeakPtr<BulkPrintersCalculator> calculator)
: access_mode_name_(access_mode_name),
blocklist_name_(blocklist_name),
allowlist_name_(allowlist_name),
calculator_(calculator) {
DCHECK(access_mode_name);
DCHECK(blocklist_name);
DCHECK(allowlist_name);
DCHECK(calculator);
}
CalculatorsPoliciesBinder::~CalculatorsPoliciesBinder() = default;
base::WeakPtr<CalculatorsPoliciesBinder>
CalculatorsPoliciesBinder::GetWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void CalculatorsPoliciesBinder::Init() {
// Register for future updates.
Bind(access_mode_name_,
base::BindRepeating(&CalculatorsPoliciesBinder::UpdateAccessMode,
GetWeakPtr()));
Bind(blocklist_name_,
base::BindRepeating(&CalculatorsPoliciesBinder::UpdateBlocklist,
GetWeakPtr()));
Bind(allowlist_name_,
base::BindRepeating(&CalculatorsPoliciesBinder::UpdateAllowlist,
GetWeakPtr()));
// Retrieve initial values for all policy fields.
UpdateAccessMode();
UpdateBlocklist();
UpdateAllowlist();
}
void CalculatorsPoliciesBinder::UpdateAccessMode() {
DVLOG(1) << "Update access mode";
if (calculator_) {
calculator_->SetAccessMode(
ConvertToAccessMode(GetAccessMode(access_mode_name_)));
}
}
void CalculatorsPoliciesBinder::UpdateAllowlist() {
if (calculator_) {
calculator_->SetAllowlist(GetStringList(allowlist_name_));
}
}
void CalculatorsPoliciesBinder::UpdateBlocklist() {
if (calculator_) {
calculator_->SetBlocklist(GetStringList(blocklist_name_));
}
}
} // namespace ash
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