try:

                settings = [

                    ('show_public_icon', 'show_public_icon', 'bool'),

                    ('show_private_icon', 'show_private_icon', 'bool'),

                    ('stylify_metatags', 'stylify_metatags', 'bool'),

                    ('repository_fields', 'repository_fields', 'bool'),

                    ('dashboard_items', 'dashboard_items', 'int'),

                    ('admin_grid_items', 'admin_grid_items', 'int'),

                    ('show_version', 'show_version', 'bool'),

                    ('use_gravatar', 'use_gravatar', 'bool'),

                    ('gravatar_url', 'gravatar_url', 'unicode'),

                    ('clone_uri_tmpl', 'clone_uri_tmpl', 'unicode'),

                ]

                for setting, form_key, type_ in settings:

                    sett = Setting.create_or_update(setting,

                                        form_result[form_key], type_)

                    Session().add(sett)

                Session().commit()

                set_app_settings(config)

                h.flash(_('Updated visualisation settings'),

                        category='success')

            except Exception:

                log.error(traceback.format_exc())

                h.flash(_('Error occurred during updating '

                          'visualisation settings'),

                        category='error')

            return redirect(url('admin_settings_visual'))

        defaults = Setting.get_app_settings()

        defaults.update(self._get_hg_ui_settings())

        return htmlfill.render(

            render('admin/settings/settings.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    @HasPermissionAllDecorator('hg.admin')

    def settings_email(self):

        """GET /admin/settings/email: All items in the collection"""

        # url('admin_settings_email')

        c.active = 'email'

        if request.POST:

            test_email = request.POST.get('test_email')

            test_email_subj = 'Kallithea test email'

                               'Kallithea version: %s' % c.kallithea_version)

            if not test_email:

                h.flash(_('Please enter email address'), category='error')

                return redirect(url('admin_settings_email'))

            test_email_html_body = EmailNotificationModel()\

                .get_email_tmpl(EmailNotificationModel.TYPE_DEFAULT,

            recipients = [test_email] if test_email else None

            run_task(tasks.send_email, recipients, test_email_subj,

            h.flash(_('Send email task created'), category='success')

            return redirect(url('admin_settings_email'))

        defaults = Setting.get_app_settings()

        defaults.update(self._get_hg_ui_settings())

        import kallithea

        c.ini = kallithea.CONFIG

        return htmlfill.render(

            render('admin/settings/settings.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    @HasPermissionAllDecorator('hg.admin')

    def settings_hooks(self):

        """GET /admin/settings/hooks: All items in the collection"""

        # url('admin_settings_hooks')

        c.active = 'hooks'

        if request.POST:

            if c.visual.allow_custom_hooks_settings:

                ui_key = request.POST.get('new_hook_ui_key')

                ui_value = request.POST.get('new_hook_ui_value')

                hook_id = request.POST.get('hook_id')

                try:

                    ui_key = ui_key and ui_key.strip()

                    if ui_value and ui_key:

                        Ui.create_or_update_hook(ui_key, ui_value)

                        h.flash(_('Added new hook'), category='success')

                    elif hook_id:

                        Ui.delete(hook_id)

                        Session().commit()

                    # check for edits

                    update = False

                    _d = request.POST.dict_of_lists()

                    for k, v in zip(_d.get('hook_ui_key', []),

                                    _d.get('hook_ui_value_new', [])):

                        Ui.create_or_update_hook(k, v)

                        update = True

                    if update:

                        h.flash(_('Updated hooks'), category='success')

                    Session().commit()

        :param email_kwargs: additional dict to pass as args to email template

        """

        from kallithea.lib.celerylib import tasks, run_task

        if recipients and not getattr(recipients, '__iter__', False):

            raise Exception('recipients must be a list or iterable')

        created_by_obj = self._get_user(created_by)

        recipients_objs = []

        if recipients:

            for u in recipients:

                obj = self._get_user(u)

                if obj:

                    recipients_objs.append(obj)

                else:

                    # TODO: inform user that requested operation couldn't be completed

                    log.error('cannot email unknown user %r', u)

            recipients_objs = set(recipients_objs)

            log.debug('sending notifications %s to %s' % (

                type_, recipients_objs)

            )

        elif recipients is None:

            # empty recipients means to all admins

            recipients_objs = User.query().filter(User.admin == True).all()

            log.debug('sending notifications %s to admins: %s' % (

                type_, recipients_objs)

            )

        #else: silently skip notification mails?

        # TODO: inform user who are notified

        notif = Notification.create(

            created_by=created_by_obj, subject=subject,

            body=body, recipients=recipients_objs, type_=type_

        )

        if not with_email:

            return notif

        #don't send email to person who created this comment

        rec_objs = set(recipients_objs).difference(set([created_by_obj]))

        headers = None

        if 'threading' in email_kwargs:

            headers = {'References': ' '.join('<%s>' % x for x in email_kwargs['threading'])}

        # send email with notification to all other participants

        for rec in rec_objs:

            ## this is passed into template

            kwargs = {'subject': subject,

                      'body': h.rst_w_mentions(body),

                      'when': h.fmt_date(notif.created_on),

                      'user': notif.created_by_user.username,

                      }

            kwargs.update(email_kwargs)

            email_subject = EmailNotificationModel()\

                                .get_email_description(type_, **kwargs)

        return notif

    def delete(self, user, notification):

        # we don't want to remove actual notification just the assignment

        try:

            notification = self.__get_notification(notification)

            user = self._get_user(user)

            if notification and user:

                obj = UserNotification.query()\

                        .filter(UserNotification.user == user)\

                        .filter(UserNotification.notification

                                == notification)\

                        .one()

                Session().delete(obj)

                return True

        except Exception:

            log.error(traceback.format_exc())

            raise

    def get_for_user(self, user, filter_=None):

        """

        Get notifications for given user, filter them if filter dict is given

        :param user:

        :param filter:

        """

        user = self._get_user(user)

        q = UserNotification.query()\

            .filter(UserNotification.user == user)\

            .join((Notification, UserNotification.notification_id ==

                                 Notification.notification_id))

        if filter_:

            q = q.filter(Notification.type_.in_(filter_))

        return q.all()

    def mark_read(self, user, notification):

        try:

            notification = self.__get_notification(notification)

            user = self._get_user(user)

            if notification and user:

                obj = UserNotification.query()\

                        .filter(UserNotification.user == user)\

                        .filter(UserNotification.notification

                                == notification)\

        return UserNotification.query()\

            .filter(UserNotification.notification == notification)\

            .filter(UserNotification.user == user).scalar()

    def make_description(self, notification, show_age=True):

        """

        Creates a human readable description based on properties

        of notification object

        """

        #alias

        _n = notification

        _map = {

            _n.TYPE_CHANGESET_COMMENT: _('%(user)s commented on changeset at %(when)s'),

            _n.TYPE_MESSAGE: _('%(user)s sent message at %(when)s'),

            _n.TYPE_MENTION: _('%(user)s mentioned you at %(when)s'),

            _n.TYPE_REGISTRATION: _('%(user)s registered in Kallithea at %(when)s'),

            _n.TYPE_PULL_REQUEST: _('%(user)s opened new pull request at %(when)s'),

            _n.TYPE_PULL_REQUEST_COMMENT: _('%(user)s commented on pull request at %(when)s')

        }

        tmpl = _map[notification.type_]

        if show_age:

            when = h.age(notification.created_on)

        else:

            when = h.fmt_date(notification.created_on)

        return tmpl % dict(

            user=notification.created_by_user.username,

            when=when,

            )

class EmailNotificationModel(BaseModel):

    TYPE_CHANGESET_COMMENT = Notification.TYPE_CHANGESET_COMMENT

    TYPE_MESSAGE = Notification.TYPE_MESSAGE # only used for testing

    # Notification.TYPE_MENTION is not used

    TYPE_PASSWORD_RESET = 'password_link'

    TYPE_REGISTRATION = Notification.TYPE_REGISTRATION

    TYPE_PULL_REQUEST = Notification.TYPE_PULL_REQUEST

    TYPE_PULL_REQUEST_COMMENT = Notification.TYPE_PULL_REQUEST_COMMENT

    TYPE_DEFAULT = 'default'

    def __init__(self):

        super(EmailNotificationModel, self).__init__()

        self._template_root = kallithea.CONFIG['pylons.paths']['templates'][0]

        self._tmpl_lookup = kallithea.CONFIG['pylons.app_globals'].mako_lookup

        self.email_types = {

        }

        self._subj_map = {

            self.TYPE_CHANGESET_COMMENT: _('Comment on %(repo_name)s changeset %(short_id)s on %(branch)s by %(comment_username)s'),

            self.TYPE_MESSAGE: 'Test Message',

            # self.TYPE_PASSWORD_RESET

            self.TYPE_REGISTRATION: _('New user %(new_username)s registered'),

            # self.TYPE_DEFAULT

            self.TYPE_PULL_REQUEST: _('Review request on %(repo_name)s pull request #%(pr_id)s from %(ref)s by %(pr_username)s'),

            self.TYPE_PULL_REQUEST_COMMENT: _('Comment on %(repo_name)s pull request #%(pr_id)s from %(ref)s by %(comment_username)s'),

        }

    def get_email_description(self, type_, **kwargs):

        """

        return subject for email based on given type

        """

        tmpl = self._subj_map[type_]

        try:

            subj = tmpl % kwargs

        except KeyError, e:

            log.error('error generating email subject for %r from %s: %s', type_, ','.join(self._subj_map.keys()), e)

            raise

        l = [str(x) for x in [kwargs.get('status_change'), kwargs.get('closing_pr') and _('Closing')] if x]

        if l:

            subj += ' (%s)' % (', '.join(l))

        return subj

        """

        return generated template for email based on given type

        """

        email_template = self._tmpl_lookup.get_template(base)

        # translator and helpers inject

        _kwargs = {'_': _,

                   'h': h,

                   'c': c}

        _kwargs.update(kwargs)

        log.debug('rendering tmpl %s with kwargs %s' % (base, _kwargs))

        return email_template.render(**_kwargs)

                    v = get_crypt_password(v)

                setattr(user, k, v)

            self.sa.add(user)

            return user

        except Exception:

            log.error(traceback.format_exc())

            raise

    def delete(self, user, cur_user=None):

        if not cur_user:

            cur_user = getattr(get_current_authuser(), 'username', None)

        user = self._get_user(user)

        try:

            if user.username == User.DEFAULT_USER:

                raise DefaultUserException(

                    _(u"You can't remove this user since it's"

                      " crucial for entire application")

                )

            if user.repositories:

                repos = [x.repo_name for x in user.repositories]

                raise UserOwnsReposException(

                    _(u'user "%s" still owns %s repositories and cannot be '

                      'removed. Switch owners or remove those repositories. %s')

                    % (user.username, len(repos), ', '.join(repos))

                )

            self.sa.delete(user)

            from kallithea.lib.hooks import log_delete_user

            log_delete_user(user.get_dict(), cur_user)

        except Exception:

            log.error(traceback.format_exc())

            raise

    def reset_password_link(self, data):

        from kallithea.lib.celerylib import tasks, run_task

        from kallithea.model.notification import EmailNotificationModel

        import kallithea.lib.helpers as h

        user_email = data['email']

        try:

            user = User.get_by_email(user_email)

            if user:

                log.debug('password reset user found %s' % user)

                link = h.canonical_url('reset_password_confirmation', key=user.api_key)

                reg_type = EmailNotificationModel.TYPE_PASSWORD_RESET

                body = EmailNotificationModel().get_email_tmpl(reg_type,

                                                               user=user.short_contact,

                                                               reset_url=link)

                log.debug('sending email')

                run_task(tasks.send_email, [user_email],

                log.info('send new password mail to %s' % user_email)

            else:

                log.debug("password reset email %s not found" % user_email)

        except Exception:

            log.error(traceback.format_exc())

            return False

        return True

    def reset_password(self, data):

        from kallithea.lib.celerylib import tasks, run_task

        from kallithea.lib import auth

        user_email = data['email']

        pre_db = True

        try:

            user = User.get_by_email(user_email)

            new_passwd = auth.PasswordGenerator().gen_password(8,

                            auth.PasswordGenerator.ALPHABETS_BIG_SMALL)

            if user:

                user.password = auth.get_crypt_password(new_passwd)

                Session().add(user)

                Session().commit()

                log.info('change password for %s' % user_email)

            if new_passwd is None:

                raise Exception('unable to generate new password')

            pre_db = False

            run_task(tasks.send_email, [user_email],

                     _('Your new password'),

                     _('Your new Kallithea password:%s') % (new_passwd,))

            log.info('send new password mail to %s' % user_email)

        except Exception:

            log.error('Failed to update user password')

            log.error(traceback.format_exc())

            if pre_db:

                # we rollback only if local db stuff fails. If it goes into

                # run_task, we're pass rollback state this wouldn't work then

                Session().rollback()

        return True

    def fill_data(self, auth_user, user_id=None, api_key=None, username=None):

        """

        Fetches auth_user by user_id,or api_key if present.

        Fills auth_user attributes with those taken from database.

        Additionally sets is_authenitated if lookup fails

        present in database

## -*- coding: utf-8 -*-

%if is_mention:

%else:

%endif

%if status_change:

%endif

${h.shorter(message, 256)}

## -*- coding: utf-8 -*-

${body}

${self.body()}

<br/>

-- <br/>

${self.body()}

## -*- coding: utf-8 -*-

## -*- coding: utf-8 -*-

%if is_mention:

%else:

%endif

%for r,r_msg in pr_revisions:

${h.shorter(r_msg, 256)}

%endfor

## -*- coding: utf-8 -*-

%if status_change:

    %if closing_pr:

    %else:

    %endif

%endif

## -*- coding: utf-8 -*-

${body}