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<?php
/**
* Handler for remote subscription finish callback
*
* PHP version 5
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Robin Millette <millette@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* 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/>.
**/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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@status.net>
* @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);
/* Restore session data. RemotesubscribeAction should have stored
this entry. */
$service = unserialize($_SESSION['oauth_authorization_request']);
if (!$service) {
$this->clientError(_('Not expecting this response!'));
return;
}
common_debug('stored request: '. print_r($service, true), __FILE__);
/* Create user objects for both users. Do it early for request
validation. */
$user = User::staticGet('uri', $service->getListeneeURI());
if (!$user) {
$this->clientError(_('User being listened to does not exist.'));
return;
}
$other = User::staticGet('uri', $service->getListenerURI());
if ($other) {
$this->clientError(_('You can use the local subscription!'));
return;
}
$remote = Remote_profile::staticGet('uri', $service->getListenerURI());
$profile = Profile::staticGet($remote->id);
if ($user->hasBlocked($profile)) {
$this->clientError(_('That user has blocked you from subscribing.'));
return;
}
/* Perform the handling itself via libomb. */
try {
$service->finishAuthorization();
} catch (OAuthException $e) {
if ($e->getMessage() == 'The authorized token does not equal the ' .
'submitted token.') {
$this->clientError(_('You are not authorized.'));
return;
} else {
$this->clientError(_('Could not convert request token to ' .
'access token.'));
return;
}
} catch (OMB_RemoteServiceException $e) {
$this->clientError(_('Remote service uses unknown version of ' .
'OMB protocol.'));
return;
} catch (Exception $e) {
common_debug('Got exception ' . print_r($e, true), __FILE__);
$this->clientError($e->getMessage());
return;
}
/* The service URLs are not accessible from datastore, so setting them
after insertion of the profile. */
$orig_remote = clone($remote);
$remote->postnoticeurl =
$service->getServiceURI(OMB_ENDPOINT_POSTNOTICE);
$remote->updateprofileurl =
$service->getServiceURI(OMB_ENDPOINT_UPDATEPROFILE);
if (!$remote->update($orig_remote)) {
$this->serverError(_('Error updating remote profile'));
return;
}
/* Clear the session data. */
unset($_SESSION['oauth_authorization_request']);
/* 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(),
$req->to_postdata(),
array('User-Agent: StatusNet/' . STATUSNET_VERSION));
common_debug('got result: "'.print_r($result,true).'"', __FILE__);
if ($result->status != 200) {
return null;
}
parse_str($result->body, $return);
return array($return['oauth_token'], $return['oauth_token_secret']);
}
}
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