Esempio n. 1
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    def _ask_for_path(config_name):
        """
        Asks for Dropbox path.
        """

        conf = MaestralConfig(config_name)

        default = osp.join(get_home_dir(), conf.get("main",
                                                    "default_dir_name"))

        while True:
            msg = f"Please give Dropbox folder location or press enter for default ['{default}']:"
            res = input(msg).strip("'\" ")

            dropbox_path = osp.expanduser(res or default)
            old_path = osp.expanduser(conf.get("main", "path"))

            same_path = False
            try:
                if osp.samefile(old_path, dropbox_path):
                    same_path = True
            except FileNotFoundError:
                pass

            if osp.exists(dropbox_path) and not same_path:
                msg = f"Directory '{dropbox_path}' already exist. Do you want to overwrite it?"
                yes = click.confirm(msg)
                if yes:
                    return dropbox_path
                else:
                    pass
            else:
                return dropbox_path
Esempio n. 2
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    def pending_dropbox_folder(config_name):
        """
        Bool indicating if a local Dropbox directory has been set.

        :param str config_name: Name of user config to check.
        """
        conf = MaestralConfig(config_name)
        return not osp.isdir(conf.get("main", "path"))
Esempio n. 3
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def account_info(config_name: str):
    """Prints your Dropbox account information."""

    if _is_maestral_linked(config_name):
        from maestral.config.main import MaestralConfig

        conf = MaestralConfig(config_name)

        email = conf.get("account", "email")
        account_type = conf.get("account", "type").capitalize()
        usage = conf.get("account", "usage")
        path = conf.get("main", "path")

        click.echo("")
        click.echo("Email:             {}".format(email))
        click.echo("Account-type:      {}".format(account_type))
        click.echo("Usage:             {}".format(usage))
        click.echo("Dropbox location:  '{}'".format(path))
        click.echo("")
Esempio n. 4
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def _check_for_updates():
    """Checks if updates are available by reading the cached release number from the
    config file and notifies the user."""
    from maestral import __version__
    from maestral.config.main import MaestralConfig
    from maestral.sync.utils.updates import check_version

    CONF = MaestralConfig('maestral')
    latest_release = CONF.get("app", "latest_release")

    has_update = check_version(__version__, latest_release, '<')

    if has_update:
        click.secho("Maestral v{0} has been released, you have v{1}. Please use your "
                    "package manager to update.".format(latest_release, __version__),
                    fg="red")
Esempio n. 5
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def excluded_list(config_name: str):
    """Lists all excluded folders."""

    if _is_maestral_linked(config_name):

        from maestral.config.main import MaestralConfig

        conf = MaestralConfig(config_name)
        excluded_folders = conf.get("main", "excluded_folders")
        excluded_folders.sort()

        if len(excluded_folders) == 0:
            click.echo("No excluded folders.")
        else:
            for folder in excluded_folders:
                click.echo(folder)
Esempio n. 6
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def migrate_maestral_index(config_name):
    conf = MaestralConfig(config_name)

    old_rev_file_path = osp.join(conf.get('main', 'path'), '.maestral')
    new_rev_file_path = get_data_path('maestral', f'{config_name}.index')

    if osp.isfile(old_rev_file_path) and not osp.isfile(new_rev_file_path):
        try:
            os.rename(old_rev_file_path, new_rev_file_path)
            logger.info(f'Migrated maestral index for config "{config_name}"')
        except OSError:
            title = 'Could not move index after upgrade'
            msg = ('Please move your maestral index manually from '
                   f'"{old_rev_file_path}" to "{new_rev_file_path}".')

            sys.stderr.write(title + '\n' + msg)
            sys.exit(1)
Esempio n. 7
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def level(config_name: str, level_name: str):
    """Gets or sets the log level. Changes will take effect after restart."""
    if level_name:
        from maestral.sync.daemon import MaestralProxy

        level_num = logging._nameToLevel[level_name]
        with MaestralProxy(config_name, fallback=True) as m:
            m.set_log_level(level_num)
        click.echo("Log level set to {}.".format(level_name))
    else:
        os.environ["MAESTRAL_CONFIG"] = config_name
        from maestral.config.main import MaestralConfig

        conf = MaestralConfig(config_name)

        level_num = conf.get("app", "log_level")
        level_name = logging.getLevelName(level_num)
        click.echo("Log level:  {}".format(level_name))
Esempio n. 8
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def log_level(config_name: str, level_name: str):
    """Gets or sets the log level."""

    from maestral.daemon import MaestralProxy

    try:
        with MaestralProxy(config_name) as m:
            if level_name:
                m.log_level = logging._nameToLevel[level_name]
                click.echo(f'Log level set to {level_name}.')
            else:
                level_name = logging.getLevelName(m.log_level)
                click.echo(f'Log level:  {level_name}')
    except Pyro5.errors.CommunicationError:
        from maestral.config.main import MaestralConfig
        conf = MaestralConfig(config_name)
        if level_name:
            conf.set('app', 'log_level', logging._nameToLevel[level_name])
            click.echo(f'Log level set to {level_name}.')
        else:
            level_name = logging.getLevelName(conf.get('app', 'log_level'))
            click.echo(f'Log level:  {level_name}')
Esempio n. 9
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def migrate_maestral_index(config_name):
    """
    Migrates the maestral index from inside the user's Dropbox folder to the platforms
    data dir. This will be removed when we are out of beta.

    :param str config_name: Name of user config.
    """
    conf = MaestralConfig(config_name)

    old_rev_file_path = osp.join(conf.get('main', 'path'), '.maestral')
    new_rev_file_path = get_data_path('maestral', f'{config_name}.index')

    if osp.isfile(old_rev_file_path) and not osp.isfile(new_rev_file_path):
        try:
            os.rename(old_rev_file_path, new_rev_file_path)
            logger.info(f'Migrated maestral index for config "{config_name}"')
        except OSError:
            title = 'Could not move index after upgrade'
            msg = ('Please move your maestral index manually from '
                   f'"{old_rev_file_path}" to "{new_rev_file_path}".')

            sys.stderr.write(title + '\n' + msg)
            sys.exit(1)
Esempio n. 10
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def notify_level(config_name: str, level_name: str):
    """Gets or sets the level for desktop notifications."""
    from maestral.daemon import MaestralProxy
    from maestral.utils.notify import levelNameToNumber, levelNumberToName

    try:
        with MaestralProxy(config_name) as m:
            if level_name:
                m.notification_level = levelNameToNumber(level_name)
                click.echo(f'Notification level set to {level_name}.')
            else:
                level_name = levelNumberToName(m.notification_level)
                click.echo(f'Notification level: {level_name}.')
    except Pyro5.errors.CommunicationError:
        from maestral.config.main import MaestralConfig
        conf = MaestralConfig(config_name)
        if level_name:
            conf.set('app', 'notification_level',
                     levelNameToNumber(level_name))
            click.echo(f'Notification level set to {level_name}.')
        else:
            level_name = levelNumberToName(
                conf.get('app', 'notification_level'))
            click.echo(f'Notification level: {level_name}.')
Esempio n. 11
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class OAuth2Session(object):
    """
    OAuth2Session provides OAuth2 login and token store.
    """

    oAuth2FlowResult = None

    Success = 0
    InvalidToken = 1
    ConnectionFailed = 2

    def __init__(self, config_name='maestral'):

        self._conf = MaestralConfig(config_name)

        self.account_id = self._conf.get("account", "account_id")
        self.access_token = ""

        self.auth_flow = None

    def load_token(self):
        """
        Check if auth key has been saved.

        :raises: ``KeyringLocked`` if the system keyring cannot be accessed.
        """
        logger.debug("Using keyring: %s" % keyring.get_keyring())
        try:
            if self.account_id == "":
                self.access_token = None
            else:
                self.access_token = keyring.get_password("Maestral", self.account_id)
            return self.access_token
        except KeyringLocked:
            info = "Please make sure that your keyring is unlocked and restart Maestral."
            raise KeyringLocked(info)

    def get_auth_url(self):
        """Gets the auth URL to start the OAuth2 implicit grant flow."""

        self.auth_flow = DropboxOAuth2FlowImplicit(APP_KEY)
        authorize_url = self.auth_flow.start()
        return authorize_url

    def verify_auth_token(self, token):
        """
        Verify the provided authorization token with Dropbox servers.

        :return: OAuth2Session.Success, OAuth2Session.InvalidToken, or
            OAuth2Session.ConnectionFailed
        :rtype: int
        """

        if not self.auth_flow:
            raise RuntimeError('Auth flow not yet started. Please call \'get_auth_url\'.')

        try:
            self.oAuth2FlowResult = self.auth_flow.finish(token)
            self.access_token = self.oAuth2FlowResult.access_token
            self.account_id = self.oAuth2FlowResult.account_id
            return self.Success
        except DropboxAuthError:
            return self.InvalidToken
        except ConnectionError:
            return self.ConnectionFailed

    def link(self):
        """Command line flow to get an auth key from Dropbox and save it in the system
        keyring."""
        authorize_url = self.get_auth_url()
        print("1. Go to: " + authorize_url)
        print("2. Click \"Allow\" (you might have to log in first).")
        print("3. Copy the authorization token.")

        res = 1
        while res > 0:
            auth_code = input("Enter the authorization token here: ").strip()
            res = self.verify_auth_token(auth_code)

            if res == 1:
                print("Invalid token. Please try again.")
            elif res == 2:
                print("Could not connect to Dropbox. Please try again.")

        self.save_creds()

    def save_creds(self):
        """Saves auth key to system keyring."""
        self._conf.set("account", "account_id", self.account_id)
        try:
            keyring.set_password("Maestral", self.account_id, self.access_token)
            print(" > Credentials written.")
        except KeyringLocked:
            logger.error("Could not access the user keyring to save your authentication "
                         "token. Please make sure that the keyring is unlocked.")

    def delete_creds(self):
        """Deletes auth key from system keyring."""
        self._conf.set("account", "account_id", "")
        try:
            keyring.delete_password("Maestral", self.account_id)
            print(" > Credentials removed.")
        except KeyringLocked:
            logger.error("Could not access the user keyring to delete your authentication"
                         " token. Please make sure that the keyring is unlocked.")
Esempio n. 12
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class Maestral(object):
    """
    An open source Dropbox client for macOS and Linux to syncing a local folder
    with your Dropbox account. All functions and properties return objects or
    raise exceptions which can safely serialized, i.e., pure Python types. The only
    exception are MaestralApiErrors which have been registered explicitly with the Pyro5
    serializer.
    """

    _daemon_running = True  # for integration with Pyro

    def __init__(self, config_name='maestral', run=True):

        self._config_name = config_name
        self._conf = MaestralConfig(self._config_name)

        self._setup_logging()
        self.set_share_error_reports(self._conf.get("app", "analytics"))

        self.client = MaestralApiClient(config_name=self._config_name)
        self.monitor = MaestralMonitor(self.client,
                                       config_name=self._config_name)
        self.sync = self.monitor.sync

        # periodically check for updates and refresh account info
        self.update_thread = Thread(
            name="Maestral update check",
            target=self._periodic_refresh,
            daemon=True,
        )
        self.update_thread.start()

        if run:
            self.run()

    def run(self):

        if self.pending_dropbox_folder(self._config_name):
            self.create_dropbox_directory()
            self.set_excluded_folders()

            self.sync.last_cursor = ""
            self.sync.last_sync = 0

        # start syncing
        self.start_sync()

        if NOTIFY_SOCKET and system_notifier:  # notify systemd that we have started
            logger.debug("Running as systemd notify service")
            logger.debug(f"NOTIFY_SOCKET = {NOTIFY_SOCKET}")
            system_notifier.notify("READY=1")

        if IS_WATCHDOG and system_notifier:  # notify systemd periodically if alive
            logger.debug("Running as systemd watchdog service")
            logger.debug(f"WATCHDOG_USEC = {WATCHDOG_USEC}")
            logger.debug(f"WATCHDOG_PID = {WATCHDOG_PID}")

            self.watchdog_thread = Thread(
                name="Maestral watchdog",
                target=self._periodic_watchdog,
                daemon=True,
            )
            self.watchdog_thread.start()

    def _setup_logging(self):

        log_level = self._conf.get("app", "log_level")
        mdbx_logger = logging.getLogger("maestral")
        mdbx_logger.setLevel(logging.DEBUG)

        log_fmt_long = logging.Formatter(
            fmt="%(asctime)s %(name)s %(levelname)s: %(message)s",
            datefmt="%Y-%m-%d %H:%M:%S")
        log_fmt_short = logging.Formatter(fmt="%(message)s")

        # log to file
        rfh_log_file = get_log_path("maestral", self._config_name + ".log")
        self._log_handler_file = logging.handlers.RotatingFileHandler(
            rfh_log_file, maxBytes=10**7, backupCount=1)
        self._log_handler_file.setFormatter(log_fmt_long)
        self._log_handler_file.setLevel(log_level)
        mdbx_logger.addHandler(self._log_handler_file)

        # log to journal when launched from systemd
        if INVOCATION_ID and journal:
            self._log_handler_journal = journal.JournalHandler()
            self._log_handler_journal.setFormatter(log_fmt_short)
            mdbx_logger.addHandler(self._log_handler_journal)

        # log to stdout (disabled by default)
        self._log_handler_stream = logging.StreamHandler(sys.stdout)
        self._log_handler_stream.setFormatter(log_fmt_long)
        self._log_handler_stream.setLevel(100)
        mdbx_logger.addHandler(self._log_handler_stream)

        # log to cached handlers for GUI and CLI
        self._log_handler_info_cache = CachedHandler(maxlen=1)
        self._log_handler_info_cache.setLevel(logging.INFO)
        self._log_handler_info_cache.setFormatter(log_fmt_short)
        mdbx_logger.addHandler(self._log_handler_info_cache)

        self._log_handler_error_cache = CachedHandler()
        self._log_handler_error_cache.setLevel(logging.ERROR)
        self._log_handler_error_cache.setFormatter(log_fmt_short)
        mdbx_logger.addHandler(self._log_handler_error_cache)

        # log to bugsnag (disabled by default)
        self._log_handler_bugsnag = BugsnagHandler()
        self._log_handler_bugsnag.setLevel(100)
        mdbx_logger.addHandler(self._log_handler_bugsnag)

    @property
    def config_name(self):
        return self._config_name

    def set_conf(self, section, name, value):
        self._conf.set(section, name, value)

    def get_conf(self, section, name):
        return self._conf.get(section, name)

    def set_log_level(self, level_num):
        self._log_handler_file.setLevel(level_num)
        self._log_handler_stream.setLevel(level_num)
        self._conf.set("app", "log_level", level_num)

    def set_log_to_stdout(self, enabled=True):

        if enabled:
            log_level = self._conf.get("app", "log_level")
            self._log_handler_stream.setLevel(log_level)
        else:
            self._log_handler_stream.setLevel(100)

    def set_share_error_reports(self, enabled):

        bugsnag.configuration.auto_notify = enabled
        bugsnag.configuration.auto_capture_sessions = enabled
        self._log_handler_bugsnag.setLevel(logging.ERROR if enabled else 100)

        self._conf.set("app", "analytics", enabled)

    @staticmethod
    def pending_link(config_name):
        """
        Bool indicating if auth tokens are stored in the system's keychain. This may raise
        a KeyringLocked exception if the user's keychain cannot be accessed. This
        exception will not be deserialized by Pyro5. You should check if Maestral is
        linked before instantiating a daemon.

        :param str config_name: Name of user config to check.

        :raises: :class:`keyring.errors.KeyringLocked`
        """
        auth_session = OAuth2Session(config_name)
        return auth_session.load_token() is None

    @staticmethod
    def pending_dropbox_folder(config_name):
        """
        Bool indicating if a local Dropbox directory has been set.

        :param str config_name: Name of user config to check.
        """
        conf = MaestralConfig(config_name)
        return not osp.isdir(conf.get("main", "path"))

    def pending_first_download(self):
        """Bool indicating if the initial download has already occurred."""
        return (self._conf.get("internal", "lastsync") == 0
                or self._conf.get("internal", "cursor") == "")

    @property
    def syncing(self):
        """Bool indicating if Maestral is syncing. It will be ``True`` if syncing is
        not paused by the user *and* Maestral is connected to the internet."""
        return self.monitor.syncing.is_set()

    @property
    def paused(self):
        """Bool indicating if syncing is paused by the user. This is set by calling
        :meth:`pause`."""
        return not self.monitor._auto_resume_on_connect

    @property
    def stopped(self):
        """Bool indicating if syncing is stopped, for instance because of an exception."""
        return not self.monitor.running.is_set()

    @property
    def connected(self):
        """Bool indicating if Dropbox servers can be reached."""
        return self.monitor.connected.is_set()

    @property
    def status(self):
        """Returns a string with the last status message. This can be displayed as
        information to the user but should not be relied on otherwise."""
        return self._log_handler_info_cache.getLastMessage()

    @property
    def notify(self):
        """Bool indicating if notifications are enabled or disabled."""
        return self.sync.notify.enabled

    @notify.setter
    def notify(self, boolean):
        """Setter: Bool indicating if notifications are enabled."""
        self.sync.notify.enabled = boolean

    @property
    def dropbox_path(self):
        """Returns the path to the local Dropbox directory. Read only. Use
        :meth:`create_dropbox_directory` or :meth:`move_dropbox_directory` to set or
        change the Dropbox directory location instead. """
        return self.sync.dropbox_path

    @property
    def excluded_folders(self):
        """Returns a list of excluded folders (read only). Use :meth:`exclude_folder`,
        :meth:`include_folder` or :meth:`set_excluded_folders` change which folders are
        excluded from syncing."""
        return self.sync.excluded_folders

    @property
    def sync_errors(self):
        """Returns list containing the current sync errors as dicts."""
        sync_errors = list(self.sync.sync_errors.queue)
        sync_errors_dicts = [maestral_error_to_dict(e) for e in sync_errors]
        return sync_errors_dicts

    @property
    def maestral_errors(self):
        """Returns a list of Maestral's errors as dicts. This does not include lost
        internet connections or file sync errors which only emit warnings and are tracked
        and cleared separately. Errors listed here must be acted upon for Maestral to
        continue syncing.
        """

        maestral_errors = [
            r.exc_info[1] for r in self._log_handler_error_cache.cached_records
        ]
        maestral_errors_dicts = [
            maestral_error_to_dict(e) for e in maestral_errors
        ]
        return maestral_errors_dicts

    def clear_maestral_errors(self):
        """Manually clears all Maestral errors. This should be used after they have been
        resolved by the user through the GUI or CLI.
        """
        self._log_handler_error_cache.clear()

    @property
    def account_profile_pic_path(self):
        """Returns the path of the current account's profile picture. There may not be
        an actual file at that path, if the user did not set a profile picture or the
        picture has not yet been downloaded."""
        return get_cache_path("maestral",
                              self._config_name + "_profile_pic.jpeg")

    def get_file_status(self, local_path):
        """
        Returns the sync status of an individual file.

        :param local_path: Path to file on the local drive.
        :return: String indicating the sync status. Can be "uploading", "downloading",
            "up to date", "error", or "unwatched" (for files outside of the Dropbox
            directory).
        :rtype: str
        """
        if not self.syncing:
            return "unwatched"

        try:
            dbx_path = self.sync.to_dbx_path(local_path)
        except ValueError:
            return "unwatched"

        if local_path in self.monitor.queued_for_upload:
            return "uploading"
        elif local_path in self.monitor.queued_for_download:
            return "downloading"
        elif any(local_path == err["local_path"] for err in self.sync_errors):
            return "error"
        elif self.sync.get_local_rev(dbx_path):
            return "up to date"
        else:
            return "unwatched"

    def get_activity(self):
        """
        Returns a dictionary with lists of all file currently queued for or being synced.

        :rtype: dict(list, list)
        """
        PathItem = namedtuple("PathItem", "local_path status")
        uploading = []
        downloading = []

        for path in self.monitor.uploading:
            uploading.append(PathItem(path, "uploading"))

        for path in self.monitor.queued_for_upload:
            uploading.append(PathItem(path, "queued"))

        for path in self.monitor.downloading:
            downloading.append(PathItem(path, "downloading"))

        for path in self.monitor.queued_for_download:
            downloading.append(PathItem(path, "queued"))

        return dict(uploading=uploading, downloading=downloading)

    @handle_disconnect
    def get_account_info(self):
        """
        Gets account information from Dropbox and returns it as a dictionary.
        The entries will either be of type ``str`` or ``bool``.

        :returns: Dropbox account information.
        :rtype: dict[str, bool]
        :raises: :class:`MaestralApiError`
        """
        res = self.client.get_account_info()
        return dropbox_stone_to_dict(res)

    @handle_disconnect
    def get_space_usage(self):
        """
        Gets the space usage stored by Dropbox and returns it as a dictionary.
        The entries will either be of type ``str`` or ``bool``.

        :returns: Dropbox account information.
        :rtype: dict[str, bool]
        """
        res = self.client.get_space_usage()
        return dropbox_stone_to_dict(res)

    @handle_disconnect
    def get_profile_pic(self):
        """
        Attempts to download the user's profile picture from Dropbox. The picture saved in
        Maestral's cache directory for retrieval when there is no internet connection.
        This function will fail silently in case of :class:`MaestralApiError`s.

        :returns: Path to saved profile picture or None if no profile picture is set.
        """

        try:
            res = self.client.get_account_info()
        except MaestralApiError:
            pass
        else:
            if res.profile_photo_url:
                # download current profile pic
                res = requests.get(res.profile_photo_url)
                with open(self.account_profile_pic_path, "wb") as f:
                    f.write(res.content)
                return self.account_profile_pic_path
            else:
                # delete current profile pic
                self._delete_old_profile_pics()

    @handle_disconnect
    def list_folder(self, dbx_path, **kwargs):
        """
        List all items inside the folder given by :param:`dbx_path`.

        :param dbx_path: Path to folder on Dropbox.
        :return: List of Dropbox item metadata as dicts or ``False`` if listing failed
            due to connection issues.
        :rtype: list[dict]
        """
        dbx_path = "" if dbx_path == "/" else dbx_path
        res = self.client.list_folder(dbx_path, **kwargs)

        entries = [dropbox_stone_to_dict(e) for e in res.entries]

        return entries

    def _delete_old_profile_pics(self):
        # delete all old pictures
        for file in os.listdir(get_cache_path("maestral")):
            if file.startswith(self._config_name + "_profile_pic"):
                try:
                    os.unlink(osp.join(get_cache_path("maestral"), file))
                except OSError:
                    pass

    def rebuild_index(self):
        """
        Rebuilds the Maestral index and resumes syncing afterwards if it has been
        running.

        :raises: :class:`MaestralApiError`
        """

        self.monitor.rebuild_rev_file()

    def start_sync(self, overload=None):
        """
        Creates syncing threads and starts syncing.
        """
        self.monitor.start()

    def resume_sync(self, overload=None):
        """
        Resumes the syncing threads if paused.
        """
        self.monitor.resume()

    def pause_sync(self, overload=None):
        """
        Pauses the syncing threads if running.
        """
        self.monitor.pause()

    def stop_sync(self, overload=None):
        """
        Stops the syncing threads if running, destroys observer thread.
        """
        self.monitor.stop()

    def unlink(self):
        """
        Unlinks the configured Dropbox account but leaves all downloaded files
        in place. All syncing metadata will be removed as well. Connection and API errors
        will be handled silently but the Dropbox access key will always be removed from
        the user's PC.
        """
        self.stop_sync()
        try:
            self.client.unlink()
        except (ConnectionError, MaestralApiError):
            pass

        try:
            os.remove(self.sync.rev_file_path)
        except OSError:
            pass

        self.sync.dropbox_path = ""
        self.sync.last_cursor = ""
        self.sync.last_sync = 0.0

        self._conf.reset_to_defaults()

        logger.info("Unlinked Dropbox account.")

    def exclude_folder(self, dbx_path):
        """
        Excludes folder from sync and deletes local files. It is safe to call
        this method with folders which have already been excluded.

        :param str dbx_path: Dropbox folder to exclude.
        :raises: :class:`ValueError` if ``dbx_path`` is not on Dropbox.
        :raises: :class:`ConnectionError` if connection to Dropbox fails.
        """

        dbx_path = dbx_path.lower().rstrip(osp.sep)

        md = self.client.get_metadata(dbx_path)

        if not isinstance(md, files.FolderMetadata):
            raise ValueError(
                "No such folder on Dropbox: '{0}'".format(dbx_path))

        # add the path to excluded list
        excluded_folders = self.sync.excluded_folders
        if dbx_path not in excluded_folders:
            excluded_folders.append(dbx_path)
        else:
            logger.info("Folder was already excluded, nothing to do.")
            return

        self.sync.excluded_folders = excluded_folders
        self.sync.set_local_rev(dbx_path, None)

        # remove folder from local drive
        local_path = self.sync.to_local_path(dbx_path)
        local_path_cased = path_exists_case_insensitive(local_path)
        logger.info(f"Deleting folder '{local_path_cased}'.")
        if osp.isdir(local_path_cased):
            shutil.rmtree(local_path_cased)

    def include_folder(self, dbx_path):
        """
        Includes folder in sync and downloads in the background. It is safe to
        call this method with folders which have already been included, they
        will not be downloaded again.

        :param str dbx_path: Dropbox folder to include.
        :raises: :class:`ValueError` if ``dbx_path`` is not on Dropbox or lies inside
            another excluded folder.
        :raises: :class:`ConnectionError` if connection to Dropbox fails.
        """

        dbx_path = dbx_path.lower().rstrip(osp.sep)
        md = self.client.get_metadata(dbx_path)

        old_excluded_folders = self.sync.excluded_folders

        if not isinstance(md, files.FolderMetadata):
            raise ValueError(
                "No such folder on Dropbox: '{0}'".format(dbx_path))
        for folder in old_excluded_folders:
            if is_child(dbx_path, folder):
                raise ValueError(
                    "'{0}' lies inside the excluded folder '{1}'. "
                    "Please include '{1}' first.".format(dbx_path, folder))

        # Get folders which will need to be downloaded, do not attempt to download
        # subfolders of `dbx_path` which were already included.
        # `new_included_folders` will either be empty (`dbx_path` was already
        # included), just contain `dbx_path` itself (the whole folder was excluded) or
        # only contain subfolders of `dbx_path` (`dbx_path` was partially included).
        new_included_folders = tuple(x for x in old_excluded_folders
                                     if x == dbx_path or is_child(x, dbx_path))

        if new_included_folders:
            # remove `dbx_path` or all excluded children from the excluded list
            excluded_folders = list(
                set(old_excluded_folders) - set(new_included_folders))
        else:
            logger.info("Folder was already included, nothing to do.")
            return

        self.sync.excluded_folders = excluded_folders

        # download folder contents from Dropbox
        logger.info(f"Downloading added folder '{dbx_path}'.")
        for folder in new_included_folders:
            self.sync.queued_folder_downloads.put(folder)

    @handle_disconnect
    def _include_folder_without_subfolders(self, dbx_path):
        """Sets a folder to included without explicitly including its subfolders. This
        is to be used internally, when a folder has been removed from the excluded list,
        but some of its subfolders may have been added."""

        dbx_path = dbx_path.lower().rstrip(osp.sep)
        excluded_folders = self.sync.excluded_folders

        if dbx_path not in excluded_folders:
            return

        excluded_folders.remove(dbx_path)

        self.sync.excluded_folders = excluded_folders
        self.sync.queued_folder_downloads.put(dbx_path)

    @handle_disconnect
    def set_excluded_folders(self, folder_list=None):
        """
        Sets the list of excluded folders to `folder_list`. If not given, gets all top
        level folder paths from Dropbox and asks user to include or exclude. Folders
        which are no in `folder_list` but exist on Dropbox will be downloaded.

        On initial sync, this does not trigger any downloads.

        :param list folder_list: If given, list of excluded folder to set.
        :return: List of excluded folders.
        :rtype: list
        :raises: :class:`MaestralApiError`
        """

        if folder_list is None:

            excluded_folders = []

            # get all top-level Dropbox folders
            result = self.client.list_folder("", recursive=False)

            # paginate through top-level folders, ask to exclude
            for entry in result.entries:
                if isinstance(entry, files.FolderMetadata):
                    yes = click.confirm(
                        f"Exclude '{entry.path_display}' from sync?")
                    if yes:
                        excluded_folders.append(entry.path_lower)
        else:
            excluded_folders = self.sync.clean_excluded_folder_list(
                folder_list)

        old_excluded_folders = self.sync.excluded_folders

        added_excluded_folders = set(excluded_folders) - set(
            old_excluded_folders)
        added_included_folders = set(old_excluded_folders) - set(
            excluded_folders)

        if not self.pending_first_download():
            # apply changes
            for path in added_excluded_folders:
                self.exclude_folder(path)
            for path in added_included_folders:
                self._include_folder_without_subfolders(path)

        self.sync.excluded_folders = excluded_folders

        return excluded_folders

    def excluded_status(self, dbx_path):
        """
        Returns 'excluded', 'partially excluded' or 'included'. This function will not
        check if the item actually exists on Dropbox.

        :param str dbx_path: Path to item on Dropbox.
        :returns: Excluded status.
        :rtype: str
        """

        dbx_path = dbx_path.lower().rstrip(osp.sep)

        excluded_items = self._conf.get("main",
                                        "excluded_folders") + self._conf.get(
                                            "main", "excluded_files")

        if dbx_path in excluded_items:
            return "excluded"
        elif any(is_child(f, dbx_path) for f in excluded_items):
            return "partially excluded"
        else:
            return "included"

    @with_sync_paused
    def move_dropbox_directory(self, new_path=None):
        """
        Change or set local dropbox directory. This moves all local files to
        the new location. If a file or folder already exists at this location,
        it will be overwritten.

        :param str new_path: Full path to local Dropbox folder. If not given, the
            user will be prompted to input the path.
        """

        # get old and new paths
        old_path = self.sync.dropbox_path
        if new_path is None:
            new_path = self._ask_for_path(self._config_name)

        try:
            if osp.samefile(old_path, new_path):
                return
        except FileNotFoundError:
            pass

        # remove existing items at current location
        try:
            os.unlink(new_path)
        except IsADirectoryError:
            shutil.rmtree(new_path, ignore_errors=True)
        except FileNotFoundError:
            pass

        # move folder from old location or create a new one if no old folder exists
        if osp.isdir(old_path):
            shutil.move(old_path, new_path)
        else:
            os.makedirs(new_path)

        # update config file and client
        self.sync.dropbox_path = new_path

    @with_sync_paused
    def create_dropbox_directory(self, path=None, overwrite=True):
        """
        Set a new local dropbox directory.

        :param str path: Full path to local Dropbox folder. If not given, the user will be
            prompted to input the path.
        :param bool overwrite: If ``True``, any existing file or folder at ``new_path``
            will be replaced.
        """
        # ask for new path
        if path is None:
            path = self._ask_for_path(self._config_name)

        if overwrite:
            # remove any old items at the location
            try:
                shutil.rmtree(path)
            except NotADirectoryError:
                os.unlink(path)
            except FileNotFoundError:
                pass

        # create new folder
        os.makedirs(path, exist_ok=True)

        # update config file and client
        self.sync.dropbox_path = path

    @staticmethod
    def _ask_for_path(config_name):
        """
        Asks for Dropbox path.
        """

        conf = MaestralConfig(config_name)

        default = osp.join(get_home_dir(), conf.get("main",
                                                    "default_dir_name"))

        while True:
            msg = f"Please give Dropbox folder location or press enter for default ['{default}']:"
            res = input(msg).strip("'\" ")

            dropbox_path = osp.expanduser(res or default)
            old_path = osp.expanduser(conf.get("main", "path"))

            same_path = False
            try:
                if osp.samefile(old_path, dropbox_path):
                    same_path = True
            except FileNotFoundError:
                pass

            if osp.exists(dropbox_path) and not same_path:
                msg = f"Directory '{dropbox_path}' already exist. Do you want to overwrite it?"
                yes = click.confirm(msg)
                if yes:
                    return dropbox_path
                else:
                    pass
            else:
                return dropbox_path

    def to_local_path(self, dbx_path):
        return self.sync.to_local_path(dbx_path)

    @staticmethod
    def check_for_updates():
        return check_update_available()

    def _periodic_refresh(self):
        while True:
            # update account info
            self.get_account_info()
            self.get_space_usage()
            self.get_profile_pic()
            # check for maestral updates
            res = self.check_for_updates()
            if not res["error"]:
                self._conf.set("app", "latest_release", res["latest_release"])
            time.sleep(60 * 60)  # 60 min

    def _periodic_watchdog(self):
        while self.monitor._threads_alive():
            system_notifier.notify("WATCHDOG=1")
            time.sleep(int(WATCHDOG_USEC) / (2 * 10**6))

    def shutdown_pyro_daemon(self):
        """Does nothing except for setting the _daemon_running flag to ``False``. This
        will be checked by Pyro periodically to shut down the daemon when requested."""
        self._daemon_running = False
        if NOTIFY_SOCKET and system_notifier:
            # notify systemd that we are shutting down
            system_notifier.notify("STOPPING=1")

    def _loop_condition(self):
        return self._daemon_running

    def __del__(self):
        try:
            self.monitor.stop()
        except:
            pass

    def __repr__(self):
        email = self._conf.get("account", "email")
        account_type = self._conf.get("account", "type")

        return f"<{self.__class__}({email}, {account_type})>"
Esempio n. 13
0
class MaestralGuiApp(QtWidgets.QSystemTrayIcon):
    """A Qt GUI for the Maestral daemon."""

    mdbx = None
    _started = False

    _context_menu_visible = False

    PAUSE_TEXT = "Pause Syncing"
    RESUME_TEXT = "Resume Syncing"

    icon_mapping = {
        IDLE: "idle",
        SYNCING: "syncing",
        PAUSED: "paused",
        STOPPED: "error",
        DISCONNECTED: "disconnected",
        SYNC_ERROR: "info",
        ERROR: "error",
    }

    __slots__ = (
        "icons",
        "menu",
        "recentFilesMenu",
        "settings_window",
        "sync_issues_window",
        "rebuild_dialog",
        "_progress_dialog",
        "update_ui_timer",
        "check_for_updates_timer",
        "statusAction",
        "accountEmailAction",
        "accountUsageAction",
        "pauseAction",
        "syncIssuesAction",
        "autostart",
        "_current_icon",
        "_n_sync_errors",
        "_progress_dialog",
    )

    def __init__(self, config_name='maestral'):
        QtWidgets.QSystemTrayIcon.__init__(self)

        self._config_name = config_name
        self._conf = MaestralConfig(config_name)

        self._n_sync_errors = None
        self._current_icon = None

        self.settings_window = None
        self.sync_issues_window = None
        self.rebuild_dialog = None
        self._progress_dialog = None

        self.statusAction = None
        self.accountEmailAction = None
        self.accountUsageAction = None
        self.syncIssuesAction = None
        self.pauseAction = None
        self.recentFilesMenu = None

        self.autostart = AutoStart()

        self.icons = self.load_tray_icons()
        self.setIcon(DISCONNECTED)
        self.show_when_systray_available()

        self.menu = QtWidgets.QMenu()
        self.menu.aboutToShow.connect(self._onContextMenuAboutToShow)
        self.menu.aboutToHide.connect(self._onContextMenuAboutToHide)
        self.setContextMenu(self.menu)

        self.setup_ui_unlinked()

        self.update_ui_timer = QtCore.QTimer()
        self.update_ui_timer.timeout.connect(self.update_ui)
        self.update_ui_timer.start(500)  # every 500 ms

        self.check_for_updates_timer = QtCore.QTimer()
        self.check_for_updates_timer.timeout.connect(
            self.auto_check_for_updates)
        self.check_for_updates_timer.start(30 * 60 * 1000)  # every 30 min

    def setIcon(self, icon_name):
        icon = self.icons.get(icon_name, self.icons[SYNCING])
        self._current_icon = icon_name
        QtWidgets.QSystemTrayIcon.setIcon(self, icon)

    def update_ui(self):
        if self.mdbx:
            self.update_status()
            self.update_error()

    def show_when_systray_available(self):
        # If available, show icon, otherwise, set a timer to check back later.
        # This is a workaround for https://bugreports.qt.io/browse/QTBUG-61898
        if self.isSystemTrayAvailable():
            self.setIcon(self._current_icon)  # reload icon
            self.show()
        else:
            QtCore.QTimer.singleShot(1000, self.show_when_systray_available)

    def load_tray_icons(self, color=None):

        icons = dict()

        for key in self.icon_mapping:
            icons[key] = get_system_tray_icon(self.icon_mapping[key],
                                              color=color)

        return icons

    def load_maestral(self):

        pending_link = not _is_linked(self._conf)
        pending_dbx_folder = not os.path.isdir(self._conf.get("main", "path"))

        if pending_link or pending_dbx_folder:
            from maestral.gui.setup_dialog import SetupDialog
            logger.info("Setting up Maestral...")
            done = SetupDialog.configureMaestral(self._config_name,
                                                 pending_link)
            if done:
                logger.info("Successfully set up Maestral")
                self.restart()
            else:
                logger.info("Setup aborted.")
                self.quit()
        else:
            self.mdbx = self._get_or_start_maestral_daemon()
            self.setup_ui_linked()

    def _get_or_start_maestral_daemon(self):

        pid = get_maestral_pid(self._config_name)
        if pid:
            self._started = False
        else:
            if IS_MACOS_BUNDLE:
                res = start_maestral_daemon_thread(self._config_name)
            else:
                res = start_maestral_daemon_process(self._config_name)
            if res == Start.Failed:
                title = "Could not start Maestral"
                message = (
                    "Could not start or connect to sync daemon. Please try again "
                    "and contact the developer if this issue persists.")
                show_dialog(title, message, level="error")
                self.quit()
            elif res == Start.AlreadyRunning:
                self._started = False
            elif res == Start.Ok:
                self._started = True

        return get_maestral_proxy(self._config_name)

    def setup_ui_unlinked(self):

        self.setToolTip("Not linked.")
        self.menu.clear()

        # ------------- populate context menu -------------------
        openDropboxFolderAction = self.menu.addAction("Open Dropbox Folder")
        openDropboxFolderAction.setEnabled(False)
        openWebsiteAction = self.menu.addAction("Launch Dropbox Website")
        openWebsiteAction.triggered.connect(self.on_website_clicked)

        self.menu.addSeparator()

        statusAction = self.menu.addAction("Setting up...")
        statusAction.setEnabled(False)

        self.menu.addSeparator()

        autostartAction = self.menu.addAction("Start on login")
        autostartAction.setCheckable(True)
        autostartAction.setChecked(self.autostart.enabled)
        autostartAction.triggered.connect(self.autostart.toggle)
        helpAction = self.menu.addAction("Help Center")
        helpAction.triggered.connect(self.on_help_clicked)

        self.menu.addSeparator()

        quitAction = self.menu.addAction("Quit Maestral")
        quitAction.triggered.connect(self.quit)

    def setup_ui_linked(self):

        if not self.mdbx:
            return

        self.autostart = None
        self.settings_window = SettingsWindow(self, self.mdbx)

        self.setToolTip(IDLE)

        # ------------- populate context menu -------------------

        self.menu.clear()

        openDropboxFolderAction = self.menu.addAction("Open Dropbox Folder")
        openDropboxFolderAction.triggered.connect(
            lambda: click.launch(self.mdbx.dropbox_path))
        openWebsiteAction = self.menu.addAction("Launch Dropbox Website")
        openWebsiteAction.triggered.connect(self.on_website_clicked)

        self.menu.addSeparator()

        self.accountEmailAction = self.menu.addAction(
            self.mdbx.get_conf("account", "email"))
        self.accountEmailAction.setEnabled(False)

        self.accountUsageAction = self.menu.addAction(
            self.mdbx.get_conf("account", "usage"))
        self.accountUsageAction.setEnabled(False)

        self.menu.addSeparator()

        self.statusAction = self.menu.addAction(IDLE)
        self.statusAction.setEnabled(False)
        self.pauseAction = self.menu.addAction(
            self.PAUSE_TEXT if self.mdbx.syncing else self.RESUME_TEXT)
        self.pauseAction.triggered.connect(self.on_start_stop_clicked)
        self.recentFilesMenu = self.menu.addMenu("Recently Changed Files")
        if platform.system() == "Linux":
            # on linux, submenu.aboutToShow may not be emitted
            # (see https://bugreports.qt.io/browse/QTBUG-55911)
            # therefore, we update the recent files list when the main menu is about to show
            self.menu.aboutToShow.connect(self.update_recent_files)
        else:
            self.recentFilesMenu.aboutToShow.connect(self.update_recent_files)

        self.menu.addSeparator()

        preferencesAction = self.menu.addAction("Preferences...")
        preferencesAction.triggered.connect(self.on_settings_clicked)
        updatesAction = self.menu.addAction("Check for Updates...")
        updatesAction.triggered.connect(self.on_check_for_updates_clicked)
        helpAction = self.menu.addAction("Help Center")
        helpAction.triggered.connect(self.on_help_clicked)

        self.menu.addSeparator()

        self.syncIssuesAction = self.menu.addAction("Show Sync Issues...")
        self.syncIssuesAction.triggered.connect(self.on_sync_issues_clicked)
        rebuildAction = self.menu.addAction("Rebuild index...")
        rebuildAction.triggered.connect(self.on_rebuild_clicked)

        self.menu.addSeparator()

        if self._started:
            quitAction = self.menu.addAction("Quit Maestral")
        else:
            quitAction = self.menu.addAction("Quit Maestral GUI")
        quitAction.triggered.connect(self.quit)

        # --------------- switch to idle icon -------------------
        self.setIcon(IDLE)

    # callbacks for user interaction

    @QtCore.pyqtSlot()
    def auto_check_for_updates(self):

        last_update_check = self.mdbx.get_conf("app",
                                               "update_notification_last")
        interval = self.mdbx.get_conf("app", "update_notification_interval")
        if interval == 0:  # checks disabled
            return
        elif time.time() - last_update_check > interval:
            checker = MaestralBackgroundTask(self, self.mdbx.config_name,
                                             "check_for_updates")
            checker.sig_done.connect(self._notify_updates_auto)

    @QtCore.pyqtSlot()
    def on_check_for_updates_clicked(self):

        checker = MaestralBackgroundTask(self, self.mdbx.config_name,
                                         "check_for_updates")
        self._progress_dialog = BackgroundTaskProgressDialog(
            "Checking for Updates")
        self._progress_dialog.show()
        self._progress_dialog.rejected.connect(checker.sig_done.disconnect)

        checker.sig_done.connect(self._progress_dialog.accept)
        checker.sig_done.connect(self._notify_updates_user_requested)

    @QtCore.pyqtSlot(dict)
    def _notify_updates_user_requested(self, res):

        if res["error"]:
            show_dialog("Could not check for updates",
                        res["error"],
                        level="warning")
        elif res["update_available"]:
            show_update_dialog(res["latest_release"], res["release_notes"])
        elif not res["update_available"]:
            message = 'Maestral v{} is the newest version available.'.format(
                res["latest_release"])
            show_dialog("You’re up-to-date!", message, level="info")

    @QtCore.pyqtSlot(dict)
    def _notify_updates_auto(self, res):

        if res["update_available"]:
            self.mdbx.set_conf("app", "update_notification_last", time.time())
            show_update_dialog(res["latest_release"], res["release_notes"])

    @QtCore.pyqtSlot()
    def on_website_clicked(self):
        """Open the Dropbox website."""
        click.launch("https://www.dropbox.com/")

    @QtCore.pyqtSlot()
    def on_help_clicked(self):
        """Open the Dropbox help website."""
        click.launch("https://dropbox.com/help")

    @QtCore.pyqtSlot()
    def on_start_stop_clicked(self):
        """Pause / resume syncing on menu item clicked."""
        if self.pauseAction.text() == self.PAUSE_TEXT:
            self.mdbx.pause_sync()
            self.pauseAction.setText(self.RESUME_TEXT)
        elif self.pauseAction.text() == self.RESUME_TEXT:
            self.mdbx.resume_sync()
            self.pauseAction.setText(self.PAUSE_TEXT)
        elif self.pauseAction.text() == "Start Syncing":
            self.mdbx.start_sync()
            self.pauseAction.setText(self.PAUSE_TEXT)

    @QtCore.pyqtSlot()
    def on_settings_clicked(self):
        self.settings_window.show()
        self.settings_window.raise_()
        self.settings_window.activateWindow()

    @QtCore.pyqtSlot()
    def on_sync_issues_clicked(self):
        self.sync_issues_window = SyncIssueWindow(self.mdbx)
        self.sync_issues_window.show()
        self.sync_issues_window.raise_()
        self.sync_issues_window.activateWindow()
        self.sync_issues_window.setAttribute(QtCore.Qt.WA_DeleteOnClose)

    @QtCore.pyqtSlot()
    def on_rebuild_clicked(self):
        self.rebuild_dialog = RebuildIndexDialog(self.mdbx)
        self.rebuild_dialog.show()
        self.rebuild_dialog.activateWindow()
        self.rebuild_dialog.raise_()

    # callbacks to update GUI

    @QtCore.pyqtSlot()
    def update_recent_files(self):
        """Update menu with list of recently changed files."""

        # remove old actions
        self.recentFilesMenu.clear()

        # add new actions
        for dbx_path in reversed(
                self.mdbx.get_conf("internal", "recent_changes")):
            file_name = os.path.basename(dbx_path)
            truncated_name = elide_string(file_name,
                                          font=self.menu.font(),
                                          side="right")
            local_path = self.mdbx.to_local_path(dbx_path)
            action = self.recentFilesMenu.addAction(truncated_name)
            action.setData(local_path)
            action.triggered.connect(self.on_recent_file_clicked)
            del action

    @QtCore.pyqtSlot()
    def on_recent_file_clicked(self):
        sender = self.sender()
        local_path = sender.data()
        click.launch(local_path, locate=True)

    def update_status(self):
        """Change icon according to status."""

        n_sync_errors = len(self.mdbx.sync_errors)
        status = self.mdbx.status
        is_paused = self.mdbx.paused
        is_stopped = self.mdbx.stopped

        # update icon
        if is_paused:
            new_icon = PAUSED
        elif is_stopped:
            new_icon = ERROR
        elif n_sync_errors > 0 and status == IDLE:
            new_icon = SYNC_ERROR
        else:
            new_icon = status

        self.setIcon(new_icon)

        # update action texts
        if self.contextMenuVisible():
            if n_sync_errors > 0:
                self.syncIssuesAction.setText(
                    "Show Sync Issues ({0})...".format(n_sync_errors))
            else:
                self.syncIssuesAction.setText("Show Sync Issues...")

            self.pauseAction.setText(
                self.RESUME_TEXT if is_paused else self.PAUSE_TEXT)
            self.accountUsageAction.setText(
                self.mdbx.get_conf("account", "usage"))
            self.accountEmailAction.setText(
                self.mdbx.get_conf("account", "email"))

            status_short = elide_string(status)
            self.statusAction.setText(status_short)

        # update sync issues window
        if n_sync_errors != self._n_sync_errors and _is_pyqt_obj(
                self.sync_issues_window):
            self.sync_issues_window.reload()

        # update tooltip
        self.setToolTip(status)

        # cache _n_errors
        self._n_sync_errors = n_sync_errors

    def update_error(self):
        errs = self.mdbx.maestral_errors

        if not errs:
            return
        else:
            self.mdbx.clear_maestral_errors()

        self.setIcon(ERROR)
        self.pauseAction.setText(self.RESUME_TEXT)
        self.pauseAction.setEnabled(False)
        self.statusAction.setText(self.mdbx.status)

        err = errs[-1]

        if err["type"] in ("RevFileError", "BadInputError", "CursorResetError",
                           "InotifyError"):
            self.mdbx.stop_sync()
            show_dialog(err["title"], err["message"], level="error")
        elif err["type"] == "DropboxDeletedError":
            self.restart()  # will launch into setup dialog
        elif err["type"] == "DropboxAuthError":
            from maestral.gui.relink_dialog import RelinkDialog
            self._stop_and_exec_relink_dialog(RelinkDialog.REVOKED)
        elif err["type"] == "TokenExpiredError":
            from maestral.gui.relink_dialog import RelinkDialog
            self._stop_and_exec_relink_dialog(RelinkDialog.EXPIRED)
        else:
            self._stop_and_exec_error_dialog(err)

    def _stop_and_exec_relink_dialog(self, reason):

        self.mdbx.stop_sync()

        from maestral.gui.relink_dialog import RelinkDialog

        relink_dialog = RelinkDialog(self, reason)
        relink_dialog.exec_()  # will perform quit / restart as appropriate

    def _stop_and_exec_error_dialog(self, err):

        self.mdbx.stop_sync()

        share, auto_share = show_stacktrace_dialog(
            err["traceback"],
            ask_share=not self.mdbx.get_conf("app", "analytics"))

        if share:
            import bugsnag
            bugsnag.configure(
                api_key="081c05e2bf9730d5f55bc35dea15c833",
                app_version=__version__,
                auto_notify=False,
                auto_capture_sessions=False,
            )
            bugsnag.notify(RuntimeError(err["type"]),
                           meta_data={
                               "system": {
                                   "platform": platform.platform(),
                                   "python": platform.python_version(),
                                   "gui": QtCore.PYQT_VERSION_STR,
                                   "desktop": DESKTOP,
                               },
                               "error": err,
                           })

        if auto_share:
            self.mdbx.set_conf("app", "analytics", True)

    @QtCore.pyqtSlot()
    def _onContextMenuAboutToShow(self):
        self._context_menu_visible = True

        if IS_MACOS:
            self.icons = self.load_tray_icons("light")
            self.setIcon(self._current_icon)

    @QtCore.pyqtSlot()
    def _onContextMenuAboutToHide(self):
        self._context_menu_visible = False

        if IS_MACOS:
            self.icons = self.load_tray_icons()
            self.setIcon(self._current_icon)

    def contextMenuVisible(self):
        return self._context_menu_visible

    def setToolTip(self, text):
        if not IS_MACOS:
            # tray icons in macOS should not have tooltips
            QtWidgets.QSystemTrayIcon.setToolTip(self, text)

    def quit(self, *args, stop_daemon=None):
        """Quits Maestral.

        :param bool stop_daemon: If ``True``, the sync daemon will be stopped when
            quitting the GUI, if ``False``, it will be kept alive. If ``None``, the daemon
            will only be stopped if it was started by the GUI (default).
        """
        logger.info("Quitting...")

        if stop_daemon is None:
            stop_daemon = self._started

        # stop update timer to stop communication with daemon
        self.update_ui_timer.stop()

        # stop sync daemon if we started it or ``stop_daemon==True``
        if stop_daemon and self.mdbx and not IS_MACOS_BUNDLE:
            self.mdbx._pyroRelease()
            stop_maestral_daemon_process(self._config_name)

        # quit
        self.deleteLater()
        QtCore.QCoreApplication.quit()
        sys.exit(0)

    def restart(self):
        """Restarts the Maestral GUI and sync daemon."""

        logger.info("Restarting...")

        # schedule restart after current process has quit
        pid = os.getpid()  # get ID of current process
        if IS_MACOS_BUNDLE:
            # noinspection PyUnresolvedReferences
            launch_command = os.path.join(sys._MEIPASS, "main")
            Popen("lsof -p {0} +r 1 &>/dev/null; {0}".format(launch_command),
                  shell=True)
        elif IS_MACOS:
            Popen(
                "lsof -p {0} +r 1 &>/dev/null; maestral gui --config-name='{1}'"
                .format(pid, self._config_name),
                shell=True)
        elif platform.system() == "Linux":
            Popen(
                "tail --pid={0} -f /dev/null; maestral gui --config-name='{1}'"
                .format(pid, self._config_name),
                shell=True)

        # quit Maestral
        self.quit(stop_daemon=True)
class SetupDialog(QtWidgets.QDialog):
    """A dialog to link and set up a new Dropbox account."""

    auth_session = ""
    auth_url = ""

    accepted = False

    def __init__(self, config_name='maestral', pending_link=True, parent=None):
        super(self.__class__, self).__init__(parent=parent)
        # load user interface layout from .ui file
        uic.loadUi(SETUP_DIALOG_PATH, self)

        self._config_name = config_name
        self._conf = MaestralConfig(config_name)

        self.app_icon = QtGui.QIcon(APP_ICON_PATH)

        self.labelIcon_0.setPixmap(icon_to_pixmap(self.app_icon, 150))
        self.labelIcon_1.setPixmap(icon_to_pixmap(self.app_icon, 70))
        self.labelIcon_2.setPixmap(icon_to_pixmap(self.app_icon, 70))
        self.labelIcon_3.setPixmap(icon_to_pixmap(self.app_icon, 120))

        self.mdbx = None
        self.dbx_model = None
        self.excluded_folders = []

        # resize dialog buttons
        width = self.pushButtonAuthPageCancel.width() * 1.1
        for b in (self.pushButtonAuthPageLink,
                  self.pushButtonDropboxPathUnlink,
                  self.pushButtonDropboxPathSelect,
                  self.pushButtonFolderSelectionBack,
                  self.pushButtonFolderSelectionSelect,
                  self.pushButtonAuthPageCancel,
                  self.pushButtonDropboxPathCalcel, self.pushButtonClose):
            b.setMinimumWidth(width)
            b.setMaximumWidth(width)

        # set up combobox
        self.dropbox_location = osp.dirname(self._conf.get(
            "main", "path")) or get_home_dir()
        relative_path = self.rel_path(self.dropbox_location)

        folder_icon = get_native_item_icon(self.dropbox_location)
        self.comboBoxDropboxPath.addItem(folder_icon, relative_path)

        self.comboBoxDropboxPath.insertSeparator(1)
        self.comboBoxDropboxPath.addItem(QtGui.QIcon(), "Other...")
        self.comboBoxDropboxPath.currentIndexChanged.connect(self.on_combobox)
        self.dropbox_folder_dialog = QtWidgets.QFileDialog(self)
        self.dropbox_folder_dialog.setAcceptMode(
            QtWidgets.QFileDialog.AcceptOpen)
        self.dropbox_folder_dialog.setFileMode(QtWidgets.QFileDialog.Directory)
        self.dropbox_folder_dialog.setOption(
            QtWidgets.QFileDialog.ShowDirsOnly, True)
        self.dropbox_folder_dialog.fileSelected.connect(self.on_new_dbx_folder)
        self.dropbox_folder_dialog.rejected.connect(
            lambda: self.comboBoxDropboxPath.setCurrentIndex(0))

        # connect buttons to callbacks
        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
        self.pushButtonLink.clicked.connect(self.on_link)
        self.pushButtonAuthPageCancel.clicked.connect(self.on_reject_requested)
        self.pushButtonAuthPageLink.clicked.connect(self.on_auth_clicked)
        self.pushButtonDropboxPathCalcel.clicked.connect(
            self.on_reject_requested)
        self.pushButtonDropboxPathSelect.clicked.connect(
            self.on_dropbox_location_selected)
        self.pushButtonDropboxPathUnlink.clicked.connect(
            self.unlink_and_go_to_start)
        self.pushButtonFolderSelectionBack.clicked.connect(
            self.stackedWidget.slideInPrev)
        self.pushButtonFolderSelectionSelect.clicked.connect(
            self.on_folders_selected)
        self.pushButtonClose.clicked.connect(self.on_accept_requested)
        self.selectAllCheckBox.clicked.connect(self.on_select_all_clicked)

        default_dir_name = self._conf.get("main", "default_dir_name")

        self.labelDropboxPath.setText(
            self.labelDropboxPath.text().format(default_dir_name))

        # check if we are already authenticated, skip authentication if yes
        if not pending_link:
            self.mdbx = Maestral(self._config_name, run=False)
            self.mdbx.get_account_info()
            self.labelDropboxPath.setText("""
            <html><head/><body>
            <p align="left">
            Your Dropbox folder has been moved or deleted from its original location.
            Maestral will not work properly until you move it back. It used to be located
            at: </p><p align="left">{0}</p>
            <p align="left">
            To move it back, click "Quit" below, move the Dropbox folder back to its
            original location, and launch Maestral again.
            </p>
            <p align="left">
            To re-download your Dropbox, please select a location for your Dropbox
            folder below. Maestral will create a new folder named "{1}" in the
            selected location.</p>
            <p align="left">
            To unlink your Dropbox account from Maestral, click "Unlink" below.</p>
            </body></html>
            """.format(self._conf.get("main", "path"), default_dir_name))
            self.pushButtonDropboxPathCalcel.setText("Quit")
            self.stackedWidget.setCurrentIndex(2)
            self.stackedWidgetButtons.setCurrentIndex(2)
        else:
            self.stackedWidget.setCurrentIndex(0)
            self.stackedWidgetButtons.setCurrentIndex(0)

# =============================================================================
# Main callbacks
# =============================================================================

    def closeEvent(self, event):

        if self.stackedWidget.currentIndex == 4:
            self.on_accept_requested()
        else:
            self.on_reject_requested()

    @QtCore.pyqtSlot()
    def on_accept_requested(self):
        del self.mdbx

        self.accepted = True
        self.accept()

    @QtCore.pyqtSlot()
    def on_reject_requested(self):
        if self.mdbx:
            self.mdbx.set_conf("main", "path", "")

        del self.mdbx
        self.accepted = False
        self.reject()

    def unlink_and_go_to_start(self, b):
        self.mdbx.unlink()
        self.stackedWidget.slideInIdx(0)

    @QtCore.pyqtSlot()
    def on_link(self):
        self.auth_session = OAuth2Session(self._config_name)
        self.auth_url = self.auth_session.get_auth_url()
        prompt = self.labelAuthLink.text().format(self.auth_url)
        self.labelAuthLink.setText(prompt)

        self.stackedWidget.fadeInIdx(1)
        self.pushButtonAuthPageLink.setFocus()

    @QtCore.pyqtSlot()
    def on_auth_clicked(self):

        if self.lineEditAuthCode.text() == "":
            msg = "Please enter an authentication token."
            msg_box = UserDialog("Authentication failed.", msg, parent=self)
            msg_box.open()
        else:
            self.progressIndicator.startAnimation()
            self.pushButtonAuthPageLink.setEnabled(False)
            self.lineEditAuthCode.setEnabled(False)

            self.verify_token_async()

    def verify_token_async(self):

        token = self.lineEditAuthCode.text()

        self.auth_task = BackgroundTask(
            parent=self,
            target=self.auth_session.verify_auth_token,
            args=(token, ))
        self.auth_task.sig_done.connect(self.on_verify_token_finished)

    def on_verify_token_finished(self, res):

        if res == OAuth2Session.Success:
            self.auth_session.save_creds()

            # switch to next page
            self.stackedWidget.slideInIdx(2)
            self.pushButtonDropboxPathSelect.setFocus()
            self.lineEditAuthCode.clear(
            )  # clear since we might come back on unlink

            # start Maestral after linking to Dropbox account
            self.mdbx = Maestral(self._config_name, run=False)
            self.mdbx.get_account_info()
        elif res == OAuth2Session.InvalidToken:
            msg = "Please make sure that you entered the correct authentication token."
            msg_box = UserDialog("Authentication failed.", msg, parent=self)
            msg_box.open()
        elif res == OAuth2Session.ConnectionFailed:
            msg = "Please make sure that you are connected to the internet and try again."
            msg_box = UserDialog("Connection failed.", msg, parent=self)
            msg_box.open()

        self.progressIndicator.stopAnimation()
        self.pushButtonAuthPageLink.setEnabled(True)
        self.lineEditAuthCode.setEnabled(True)

    @QtCore.pyqtSlot()
    def on_dropbox_location_selected(self):

        # reset sync status, we are starting fresh!
        self.mdbx.sync.last_cursor = ""
        self.mdbx.sync.last_sync = 0
        self.mdbx.sync.dropbox_path = ""

        # apply dropbox path
        dropbox_path = osp.join(self.dropbox_location,
                                self.mdbx.get_conf("main", "default_dir_name"))
        if osp.isdir(dropbox_path):
            msg = ('The folder "{}" already exists. Would '
                   'you like to keep using it?').format(dropbox_path)
            msg_box = UserDialog("Folder already exists", msg, parent=self)
            msg_box.setAcceptButtonName("Keep")
            msg_box.addSecondAcceptButton("Replace", icon="edit-clear")
            msg_box.addCancelButton()
            res = msg_box.exec_()

            if res == 1:
                pass
            elif res == 2:
                shutil.rmtree(dropbox_path, ignore_errors=True)
            else:
                return

        elif osp.isfile(dropbox_path):
            msg = (
                'There already is a file named "{0}" at this location. Would '
                'you like to replace it?'.format(
                    self.mdbx.get_conf("main", "default_dir_name")))
            msg_box = UserDialog("File conflict", msg, parent=self)
            msg_box.setAcceptButtonName("Replace")
            msg_box.addCancelButton()
            res = msg_box.exec_()

            if res == 0:
                return
            else:
                delete_file_or_folder(dropbox_path)

        self.mdbx.create_dropbox_directory(path=dropbox_path, overwrite=False)

        # switch to next page
        self.mdbx.set_conf("main", "excluded_folders", [])
        self.stackedWidget.slideInIdx(3)
        self.treeViewFolders.setFocus()

        # populate folder list
        if not self.excluded_folders:  # don't repopulate
            self.populate_folders_list()

    @QtCore.pyqtSlot()
    def on_folders_selected(self):

        self.apply_selection()
        self.mdbx.set_conf("main", "excluded_folders", self.excluded_folders)

        # if any excluded folders are currently on the drive, delete them
        for folder in self.excluded_folders:
            local_folder = self.mdbx.to_local_path(folder)
            delete_file_or_folder(local_folder)

        # switch to next page
        self.stackedWidget.slideInIdx(4)

# =============================================================================
# Helper functions
# =============================================================================

    @QtCore.pyqtSlot(int)
    def on_combobox(self, idx):
        if idx == 2:
            self.dropbox_folder_dialog.open()

    @QtCore.pyqtSlot(str)
    def on_new_dbx_folder(self, new_location):
        self.comboBoxDropboxPath.setCurrentIndex(0)
        if not new_location == '':
            self.comboBoxDropboxPath.setItemText(0,
                                                 self.rel_path(new_location))
            self.comboBoxDropboxPath.setItemIcon(
                0, get_native_item_icon(new_location))

        self.dropbox_location = new_location

    @handle_disconnect
    def populate_folders_list(self, overload=None):
        self.async_loader = AsyncLoadFolders(self.mdbx, self)
        self.dbx_root = DropboxPathModel(self.mdbx, self.async_loader, "/")
        self.dbx_model = TreeModel(self.dbx_root)
        self.dbx_model.dataChanged.connect(self.update_select_all_checkbox)
        self.treeViewFolders.setModel(self.dbx_model)

        self.dbx_model.loading_done.connect(
            lambda: self.pushButtonFolderSelectionSelect.setEnabled(True))
        self.dbx_model.loading_failed.connect(
            lambda: self.pushButtonFolderSelectionSelect.setEnabled(False))

        self.dbx_model.loading_done.connect(
            lambda: self.selectAllCheckBox.setEnabled(True))
        self.dbx_model.loading_failed.connect(
            lambda: self.selectAllCheckBox.setEnabled(False))

    @QtCore.pyqtSlot()
    def update_select_all_checkbox(self):
        check_states = []
        for irow in range(self.dbx_model._root_item.child_count_loaded()):
            index = self.dbx_model.index(irow, 0, QModelIndex())
            check_states.append(self.dbx_model.data(index, Qt.CheckStateRole))
        if all(cs == 2 for cs in check_states):
            self.selectAllCheckBox.setChecked(True)
        else:
            self.selectAllCheckBox.setChecked(False)

    @QtCore.pyqtSlot(bool)
    def on_select_all_clicked(self, checked):
        checked_state = 2 if checked else 0
        for irow in range(self.dbx_model._root_item.child_count_loaded()):
            index = self.dbx_model.index(irow, 0, QModelIndex())
            self.dbx_model.setCheckState(index, checked_state)

    def apply_selection(self, index=QModelIndex()):

        if index.isValid():
            item = index.internalPointer()
            item_dbx_path = item._root.lower()

            # We have started with all folders included. Therefore just append excluded
            # folders here.
            if item.checkState == 0:
                self.excluded_folders.append(item_dbx_path)
        else:
            item = self.dbx_model._root_item

        for row in range(item.child_count_loaded()):
            index_child = self.dbx_model.index(row, 0, index)
            self.apply_selection(index=index_child)

    @staticmethod
    def rel_path(path):
        """
        Returns the path relative to the users directory, or the absolute
        path if not in a user directory.
        """
        usr = osp.abspath(osp.join(get_home_dir(), osp.pardir))
        if osp.commonprefix([path, usr]) == usr:
            return osp.relpath(path, usr)
        else:
            return path

    def changeEvent(self, QEvent):

        if QEvent.type() == QtCore.QEvent.PaletteChange:
            self.update_dark_mode()

    def update_dark_mode(self):
        if self.dbx_model:
            self.dbx_model.reloadData([Qt.DecorationRole
                                       ])  # reload folder icons

    # static method to create the dialog and return Maestral instance on success
    @staticmethod
    def configureMaestral(config_name='maestral',
                          pending_link=True,
                          parent=None):
        fsd = SetupDialog(config_name, pending_link, parent)
        fsd.exec_()

        return fsd.accepted