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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.
#ifndef CHROME_BROWSER_DEVICE_API_MANAGED_CONFIGURATION_API_H_
#define CHROME_BROWSER_DEVICE_API_MANAGED_CONFIGURATION_API_H_
#include <optional>
#include "base/files/file_path.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/threading/sequence_bound.h"
#include "base/values.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/prefs/pref_change_registrar.h"
#include "services/data_decoder/public/cpp/data_decoder.h"
#include "url/origin.h"
class Profile;
class ManagedConfigurationStore;
namespace user_prefs {
class PrefRegistrySyncable;
}
// A keyed service responsible for the Managed Configuration API. It stores,
// synchronizes and parses JSON key-value configurations set by the device
// administration per origin and provides it to the callers.
class ManagedConfigurationAPI : public KeyedService {
public:
class Observer : public base::CheckedObserver {
public:
virtual void OnManagedConfigurationChanged() = 0;
virtual const url::Origin& GetOrigin() const = 0;
};
static const char kOriginKey[];
static const char kManagedConfigurationUrlKey[];
static const char kManagedConfigurationHashKey[];
explicit ManagedConfigurationAPI(Profile* profile);
~ManagedConfigurationAPI() override;
ManagedConfigurationAPI(const ManagedConfigurationAPI&) = delete;
ManagedConfigurationAPI& operator=(const ManagedConfigurationAPI&) = delete;
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
// Tries to retrieve the managed configuration for the |origin|, mapped by
// |keys|. Returns a dictionary, mapping each found key to a value.
void GetOriginPolicyConfiguration(
const url::Origin& origin,
const std::vector<std::string>& keys,
base::OnceCallback<void(std::optional<base::Value::Dict>)> callback);
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Whether this application can have managed configuration set. essentially,
// this checks whether the application is managed.
bool CanHaveManagedStore(const url::Origin& origin);
// Returns the list of all origins that have a managed configuration set.
const std::set<url::Origin>& GetManagedOrigins() const;
private:
class ManagedConfigurationDownloader;
// Tries to download the managed configuration stored at the url provided
// by policy.
void OnConfigurationPolicyChanged();
void UpdateStoredDataForOrigin(const url::Origin& origin,
const std::string& configuration_url,
const std::string& configuration_hash);
// Downloads the data from the data_url in a worker thread, and returns it in
// a callback.
void DecodeData(const url::Origin& origin,
const std::string& url_hash,
std::unique_ptr<std::string> data);
void ProcessDecodedConfiguration(
const url::Origin& origin,
const std::string& url_hash,
data_decoder::DataDecoder::ValueOrError result);
// Sends an operation to set the configured value on FILE thread.
void PostStoreConfiguration(const url::Origin& origin,
base::Value::Dict configuration);
void InformObserversIfConfigurationChanged(const url::Origin& origin,
bool changed);
void MaybeCreateStoreForOrigin(const url::Origin& origin);
base::FilePath GetStoreLocation(const url::Origin& origin);
// Assigns observers from |unmanaged_observers_| to a particular store if
// their origin has a configuration. There is no need to unassign those
// observers when the origin becomes unmanaged, since the managed data is
// cleared in the ManagedConfigurationStore, without destroying the actual
// store object.
void PromoteObservers();
const raw_ptr<Profile> profile_;
const base::FilePath stores_path_;
std::map<url::Origin, base::SequenceBound<ManagedConfigurationStore>>
store_map_;
// Stores current configuration downloading managers.
std::map<url::Origin, std::unique_ptr<ManagedConfigurationDownloader>>
downloaders_;
std::map<url::Origin, base::ObserverList<Observer>> observers_;
// Stores the list of orrigins which have a managed configuration(may not yet
// loaded).
std::set<url::Origin> managed_origins_;
std::set<raw_ptr<Observer, SetExperimental>> unmanaged_observers_;
// Observes changes to WebAppInstallForceList.
std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
base::WeakPtrFactory<ManagedConfigurationAPI> weak_ptr_factory_{this};
};
#endif // CHROME_BROWSER_DEVICE_API_MANAGED_CONFIGURATION_API_H_
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