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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* An action that handles deauthorize callbacks from Facebook
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/*
* Action class for handling deauthorize callbacks from Facebook. If the user
* doesn't have a password let her know she'll need to contact the site
* admin to get back into her account (if possible).
*/
class FacebookdeauthorizeAction extends Action
{
private $facebook;
/**
* For initializing members of the class.
*
* @param array $args misc. arguments
*
* @return boolean true
*/
function prepare($args)
{
$this->facebook = Facebookclient::getFacebook();
return true;
}
/**
* Handler method
*
* @param array $args is ignored since it's now passed in in prepare()
*/
function handle($args)
{
parent::handle($args);
$data = $this->facebook->getSignedRequest();
if (isset($data['user_id'])) {
$fbuid = $data['user_id'];
$flink = Foreign_link::getByForeignID($fbuid, FACEBOOK_SERVICE);
$user = $flink->getUser();
// Remove the link to Facebook
$result = $flink->delete();
if (!$result) {
common_log_db_error($flink, 'DELETE', __FILE__);
common_log(
LOG_WARNING,
sprintf(
'Unable to delete Facebook foreign link '
. 'for %s (%d), fbuid %s',
$user->nickname,
$user->id,
$fbuid
),
__FILE__
);
return;
}
common_log(
LOG_INFO,
sprintf(
'Facebook callback: %s (%d), fbuid %s has deauthorized '
. 'the Facebook application.',
$user->nickname,
$user->id,
$fbuid
),
__FILE__
);
// Warn the user about being locked out of their account
// if we can.
if (empty($user->password) && !empty($user->email)) {
$this->emailWarn($user);
} else {
common_log(
LOG_WARNING,
sprintf(
'%s (%d), fbuid $s has deauthorized his/her Facebook '
. 'connection but hasn\'t set a password so s/he '
. 'is locked out.',
$user->nickname,
$user->id,
$fbuid
),
__FILE__
);
}
} else {
if (!empty($data)) {
common_log(
LOG_WARNING,
sprintf(
'Facebook called the deauthorize callback '
. ' but didn\'t provide a user ID.'
),
__FILE__
);
} else {
// It probably wasn't Facebook that hit this action,
// so redirect to the login page
common_redirect(common_local_url('login'), 303);
}
}
}
/*
* Send the user an email warning that their account has been
* disconnected and he/she has no way to login and must contact
* the site administrator for help.
*
* @param User $user the deauthorizing user
*
*/
function emailWarn($user)
{
$profile = $user->getProfile();
$siteName = common_config('site', 'name');
$siteEmail = common_config('site', 'email');
if (empty($siteEmail)) {
common_log(
LOG_WARNING,
"No site email address configured. Please set one."
);
}
common_switch_locale($user->language);
$subject = _m('Contact the %s administrator to retrieve your account');
$msg = <<<BODY
Hi %1$s,
We've noticed you have deauthorized the Facebook connection for your
%2$s account. You have not set a password for your %2$s account yet, so
you will not be able to login. If you wish to continue using your %2$s
account, please contact the site administrator (%3$s) to set a password.
Sincerely,
%2$s
BODY;
$body = sprintf(
_m($msg),
$user->nickname,
$siteName,
$siteEmail
);
common_switch_locale();
if (mail_to_user($user, $subject, $body)) {
common_log(
LOG_INFO,
sprintf(
'Sent account lockout warning to %s (%d)',
$user->nickname,
$user->id
),
__FILE__
);
} else {
common_log(
LOG_WARNING,
sprintf(
'Unable to send account lockout warning to %s (%d)',
$user->nickname,
$user->id
),
__FILE__
);
}
}
}
|
