blob: d2f7ca2d4b7e6d4aa68595e5a38c56dbc8f1c5a2 [file] [log] [blame]
// Copyright 2014 The Chromium OS 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 <set>
#include <string>
#include <vector>
#include <base/callback.h>
#include <base/files/file_path.h>
#include <base/macros.h>
#include <base/memory/weak_ptr.h>
#include "privetd/daemon_state.h"
#include "privetd/privet_types.h"
#include "privetd/wifi_delegate.h"
#include "privetd/wifi_ssid_generator.h"
namespace privetd {
class ApManagerClient;
class CloudDelegate;
class DeviceDelegate;
class ShillClient;
class WifiBootstrapManager : public WifiDelegate {
enum State {
using StateListener = base::Callback<void(State)>;
WifiBootstrapManager(DaemonState* state_store,
ShillClient* shill_client,
ApManagerClient* ap_manager_client,
const DeviceDelegate* device,
const CloudDelegate* gcd,
uint32_t connect_timeout_seconds,
uint32_t bootstrap_timeout_seconds,
uint32_t monitor_timeout_seconds);
~WifiBootstrapManager() override = default;
virtual void Init();
void RegisterStateListener(const StateListener& listener);
// Overrides from WifiDelegate.
const ConnectionState& GetConnectionState() const override;
const SetupState& GetSetupState() const override;
bool ConfigureCredentials(const std::string& ssid,
const std::string& passphrase,
chromeos::ErrorPtr* error) override;
std::string GetCurrentlyConnectedSsid() const override;
std::string GetHostedSsid() const override;
std::set<WifiType> GetTypes() const override;
// These Start* tasks:
// 1) Do state appropriate work for entering the indicated state.
// 2) Update the state variable to reflect that we're in a new state
// 3) Call StateListeners to notify that we've transitioned.
// These End* tasks perform cleanup on leaving indicated state.
void StartBootstrapping();
void EndBootstrapping();
void StartConnecting(const std::string& ssid, const std::string& passphrase);
void EndConnecting();
void StartMonitoring();
void EndMonitoring();
// Update the current state, post tasks to notify listeners accordingly to
// the MessageLoop.
void UpdateState(State new_state);
void NotifyStateListeners(State new_state) const;
// If we've been bootstrapped successfully before, and we're bootstrapping
// again because we slipped offline for a sufficiently longtime, we want
// to return to monitoring mode periodically in case our connectivity issues
// were temporary.
void OnBootstrapTimeout();
void OnConnectTimeout();
void OnConnectSuccess(const std::string& ssid);
void OnConnectivityChange(bool is_connected);
void OnMonitorTimeout();
void UpdateConnectionState();
State state_{kDisabled};
// Setup state is the temporal state of the most recent bootstrapping attempt.
// It is not persisted to disk.
SetupState setup_state_{SetupState::kNone};
ConnectionState connection_state_{ConnectionState::kDisabled};
DaemonState* state_store_;
ShillClient* shill_client_;
ApManagerClient* ap_manager_client_;
WifiSsidGenerator ssid_generator_;
uint32_t connect_timeout_seconds_;
uint32_t bootstrap_timeout_seconds_;
uint32_t monitor_timeout_seconds_;
std::vector<StateListener> state_listeners_;
bool have_ever_been_bootstrapped_{false};
bool currently_online_{false};
std::string last_configured_ssid_;
// Helps to reset irrelevant tasks switching state.
base::WeakPtrFactory<WifiBootstrapManager> tasks_weak_factory_{this};
base::WeakPtrFactory<WifiBootstrapManager> lifetime_weak_factory_{this};
} // namespace privetd