diff options
Diffstat (limited to 'actions/finishremotesubscribe.php')
| -rw-r--r-- | actions/finishremotesubscribe.php | 316 |
1 files changed, 79 insertions, 237 deletions
diff --git a/actions/finishremotesubscribe.php b/actions/finishremotesubscribe.php index 5c764aeb0..13f367823 100644 --- a/actions/finishremotesubscribe.php +++ b/actions/finishremotesubscribe.php @@ -1,5 +1,16 @@ <?php -/* +/** + * Handler for remote subscription finish callback + * + * PHP version 5 + * + * @category Action + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Robin Millette <millette@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://laconi.ca/ + * * Laconica - a distributed open-source microblogging tool * Copyright (C) 2008, 2009, Control Yourself, Inc. * @@ -15,285 +26,116 @@ * * 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/>. - */ + **/ -if (!defined('LACONICA')) { exit(1); } +if (!defined('LACONICA')) { + exit(1); +} -require_once(INSTALLDIR.'/lib/omb.php'); +require_once INSTALLDIR.'/extlib/libomb/service_consumer.php'; +require_once INSTALLDIR.'/lib/omb.php'; +/** + * Handler for remote subscription finish callback + * + * When a remote user subscribes a local user, a redirect to this action is + * issued after the remote user authorized his service to subscribe. + * + * @category Action + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @author Robin Millette <millette@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://laconi.ca/ + */ class FinishremotesubscribeAction extends Action { + /** + * Class handler. + * + * @param array $args query arguments + * + * @return nothing + * + **/ function handle($args) { - parent::handle($args); - if (common_logged_in()) { - $this->clientError(_('You can use the local subscription!')); - return; - } - - $omb = $_SESSION['oauth_authorization_request']; + /* Restore session data. RemotesubscribeAction should have stored + this entry. */ + $service = unserialize($_SESSION['oauth_authorization_request']); - if (!$omb) { + if (!$service) { $this->clientError(_('Not expecting this response!')); return; } - common_debug('stored request: '.print_r($omb,true), __FILE__); - - common_remove_magic_from_request(); - $req = OAuthRequest::from_request('POST', common_local_url('finishuserauthorization')); + common_debug('stored request: '. print_r($service, true), __FILE__); - $token = $req->get_parameter('oauth_token'); - - # I think this is the success metric - - if ($token != $omb['token']) { - $this->clientError(_('Not authorized.')); - return; - } - - $version = $req->get_parameter('omb_version'); - - if ($version != OMB_VERSION_01) { - $this->clientError(_('Unknown version of OMB protocol.')); - return; - } - - $nickname = $req->get_parameter('omb_listener_nickname'); - - if (!$nickname) { - $this->clientError(_('No nickname provided by remote server.')); - return; - } - - $profile_url = $req->get_parameter('omb_listener_profile'); - - if (!$profile_url) { - $this->clientError(_('No profile URL returned by server.')); - return; - } - - if (!Validate::uri($profile_url, array('allowed_schemes' => array('http', 'https')))) { - $this->clientError(_('Invalid profile URL returned by server.')); - return; - } - - if ($profile_url == common_local_url('showstream', array('nickname' => $nickname))) { - $this->clientError(_('You can use the local subscription!')); - return; - } - - common_debug('listenee: "'.$omb['listenee'].'"', __FILE__); - - $user = User::staticGet('nickname', $omb['listenee']); + /* Create user objects for both users. Do it early for request + validation. */ + $listenee = $service->getListeneeURI(); + $user = User::staticGet('uri', $listenee); if (!$user) { $this->clientError(_('User being listened to doesn\'t exist.')); return; } - $other = User::staticGet('uri', $omb['listener']); + $other = User::staticGet('uri', $service->getListenerURI()); if ($other) { $this->clientError(_('You can use the local subscription!')); return; } - $fullname = $req->get_parameter('omb_listener_fullname'); - $homepage = $req->get_parameter('omb_listener_homepage'); - $bio = $req->get_parameter('omb_listener_bio'); - $location = $req->get_parameter('omb_listener_location'); - $avatar_url = $req->get_parameter('omb_listener_avatar'); - - list($newtok, $newsecret) = $this->access_token($omb); - - if (!$newtok || !$newsecret) { - $this->clientError(_('Couldn\'t convert request tokens to access tokens.')); - return; - } - - # XXX: possible attack point; subscribe and return someone else's profile URI - - $remote = Remote_profile::staticGet('uri', $omb['listener']); - - if ($remote) { - $exists = true; - $profile = Profile::staticGet($remote->id); - $orig_remote = clone($remote); - $orig_profile = clone($profile); - # XXX: compare current postNotice and updateProfile URLs to the ones - # stored in the DB to avoid (possibly...) above attack - } else { - $exists = false; - $remote = new Remote_profile(); - $remote->uri = $omb['listener']; - $profile = new Profile(); - } - - $profile->nickname = $nickname; - $profile->profileurl = $profile_url; - - if (!is_null($fullname)) { - $profile->fullname = $fullname; - } - if (!is_null($homepage)) { - $profile->homepage = $homepage; - } - if (!is_null($bio)) { - $profile->bio = $bio; - } - if (!is_null($location)) { - $profile->location = $location; - } - - if ($exists) { - $profile->update($orig_profile); - } else { - $profile->created = DB_DataObject_Cast::dateTime(); # current time - $id = $profile->insert(); - if (!$id) { - $this->serverError(_('Error inserting new profile')); - return; - } - $remote->id = $id; - } - - if ($avatar_url) { - if (!$this->add_avatar($profile, $avatar_url)) { - $this->serverError(_('Error inserting avatar')); - return; - } - } - - $remote->postnoticeurl = $omb['post_notice_url']; - $remote->updateprofileurl = $omb['update_profile_url']; - - if ($exists) { - if (!$remote->update($orig_remote)) { - $this->serverError(_('Error updating remote profile')); + /* Perform the handling itself via libomb. */ + try { + $service->finishAuthorization($listenee); + } catch (OAuthException $e) { + if ($e->getMessage() == 'The authorized token does not equal the ' . + 'submitted token.') { + $this->clientError(_('Not authorized.')); return; - } - } else { - $remote->created = DB_DataObject_Cast::dateTime(); # current time - if (!$remote->insert()) { - $this->serverError(_('Error inserting remote profile')); + } else { + $this->clientError(_('Couldn\'t convert request token to ' . + 'access token.')); return; } - } - - if ($user->hasBlocked($profile)) { - $this->clientError(_('That user has blocked you from subscribing.')); + } catch (OMB_RemoteServiceException $e) { + $this->clientError(_('Unknown version of OMB protocol.')); + return; + } catch (Exception $e) { + common_debug('Got exception ' . print_r($e, true), __FILE__); + $this->clientError($e->getMessage()); return; } - $sub = new Subscription(); + /* The service URLs are not accessible from datastore, so setting them + after insertion of the profile. */ + $remote = Remote_profile::staticGet('uri', $service->getListenerURI()); - $sub->subscriber = $remote->id; - $sub->subscribed = $user->id; + $orig_remote = clone($remote); - $sub_exists = false; + $remote->postnoticeurl = + $service->getServiceURI(OMB_ENDPOINT_POSTNOTICE); + $remote->updateprofileurl = + $service->getServiceURI(OMB_ENDPOINT_UPDATEPROFILE); - if ($sub->find(true)) { - $sub_exists = true; - $orig_sub = clone($sub); - } else { - $sub_exists = false; - $sub->created = DB_DataObject_Cast::dateTime(); # current time - } - - $sub->token = $newtok; - $sub->secret = $newsecret; - - if ($sub_exists) { - $result = $sub->update($orig_sub); - } else { - $result = $sub->insert(); - } - - if (!$result) { - common_log_db_error($sub, ($sub_exists) ? 'UPDATE' : 'INSERT', __FILE__); - $this->clientError(_('Couldn\'t insert new subscription.')); - return; + if (!$remote->update($orig_remote)) { + $this->serverError(_('Error updating remote profile')); + return; } - # Notify user, if necessary - - mail_subscribe_notify_profile($user, $profile); - - # Clear the data + /* Clear the session data. */ unset($_SESSION['oauth_authorization_request']); - # If we show subscriptions in reverse chron order, this should - # show up close to the top of the page - + /* If we show subscriptions in reverse chronological order, the new one + should show up close to the top of the page. */ common_redirect(common_local_url('subscribers', array('nickname' => $user->nickname)), 303); } - - function add_avatar($profile, $url) - { - $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar'); - copy($url, $temp_filename); - $imagefile = new ImageFile($profile->id, $temp_filename); - $filename = Avatar::filename($profile->id, - image_type_to_extension($imagefile->type), - null, - common_timestamp()); - rename($temp_filename, Avatar::path($filename)); - return $profile->setOriginal($filename); - } - - function access_token($omb) - { - - common_debug('starting request for access token', __FILE__); - - $con = omb_oauth_consumer(); - $tok = new OAuthToken($omb['token'], $omb['secret']); - - common_debug('using request token "'.$tok.'"', __FILE__); - - $url = $omb['access_token_url']; - - common_debug('using access token url "'.$url.'"', __FILE__); - - # XXX: Is this the right thing to do? Strip off GET params and make them - # POST params? Seems wrong to me. - - $parsed = parse_url($url); - $params = array(); - parse_str($parsed['query'], $params); - - $req = OAuthRequest::from_consumer_and_token($con, $tok, "POST", $url, $params); - - $req->set_parameter('omb_version', OMB_VERSION_01); - - # XXX: test to see if endpoint accepts this signature method - - $req->sign_request(omb_hmac_sha1(), $con, $tok); - - # We re-use this tool's fetcher, since it's pretty good - - common_debug('posting to access token url "'.$req->get_normalized_http_url().'"', __FILE__); - common_debug('posting request data "'.$req->to_postdata().'"', __FILE__); - - $fetcher = Auth_Yadis_Yadis::getHTTPFetcher(); - $result = $fetcher->post($req->get_normalized_http_url(), - $req->to_postdata(), - array('User-Agent: Laconica/' . LACONICA_VERSION)); - - common_debug('got result: "'.print_r($result,true).'"', __FILE__); - - if ($result->status != 200) { - return null; - } - - parse_str($result->body, $return); - - return array($return['oauth_token'], $return['oauth_token_secret']); - } } |