3 * Let the user authorize a remote subscription request
9 * @author Evan Prodromou <evan@status.net>
10 * @author Robin Millette <millette@status.net>
11 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
12 * @link http://status.net/
14 * StatusNet - the distributed open-source microblogging tool
15 * Copyright (C) 2008, 2009, StatusNet, Inc.
17 * This program is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU Affero General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU Affero General Public License for more details.
27 * You should have received a copy of the GNU Affero General Public License
28 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
33 require_once INSTALLDIR.'/lib/omb.php';
34 require_once INSTALLDIR.'/extlib/libomb/service_provider.php';
35 require_once INSTALLDIR.'/extlib/libomb/profile.php';
36 define('TIMESTAMP_THRESHOLD', 300);
38 // @todo FIXME: Missing documentation.
39 class UserauthorizationAction extends Action
44 function handle($args)
46 parent::handle($args);
48 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
49 /* Use a session token for CSRF protection. */
50 $token = $this->trimmed('token');
51 if (!$token || $token != common_session_token()) {
52 $srv = $this->getStoredParams();
53 $this->showForm($srv->getRemoteUser(), _('There was a problem ' .
54 'with your session token. Try again, ' .
58 /* We've shown the form, now post user's choice. */
59 $this->sendAuthorization();
61 if (!common_logged_in()) {
62 /* Go log in, and then come back. */
63 common_set_returnto($_SERVER['REQUEST_URI']);
65 common_redirect(common_local_url('login'));
69 $user = common_current_user();
70 $profile = $user->getProfile();
72 common_log_db_error($user, 'SELECT', __FILE__);
73 // TRANS: Server error displayed when trying to authorise a remote subscription request
74 // TRANS: while the user has no profile.
75 $this->serverError(_('User without matching profile.'));
79 /* TODO: If no token is passed the user should get a prompt to enter
80 it according to OAuth Core 1.0. */
83 $srv = new OMB_Service_Provider(
84 profile_to_omb_profile($user->uri, $profile),
85 omb_oauth_datastore());
87 $remote_user = $srv->handleUserAuth();
88 } catch (Exception $e) {
90 $this->clientError($e->getMessage());
94 $this->storeParams($srv);
95 $this->showForm($remote_user);
99 function showForm($params, $error=null)
101 $this->params = $params;
102 $this->error = $error;
108 // TRANS: Page title.
109 return _('Authorize subscription');
112 function showPageNotice()
114 // TRANS: Page notice on "Auhtorize subscription" page.
115 $this->element('p', null, _('Please check these details to make sure '.
116 'that you want to subscribe to this ' .
117 'user’s notices. If you didn’t just ask ' .
118 'to subscribe to someone’s notices, '.
122 function showContent()
124 $params = $this->params;
126 $nickname = $params->getNickname();
127 $profile = $params->getProfileURL();
128 $license = $params->getLicenseURL();
129 $fullname = $params->getFullname();
130 $homepage = $params->getHomepage();
131 $bio = $params->getBio();
132 $location = $params->getLocation();
133 $avatar = $params->getAvatarURL();
135 $this->elementStart('div', 'entity_profile vcard');
138 $this->element('img', array('src' => $avatar,
139 'class' => 'photo avatar entity_depiction',
140 'width' => AVATAR_PROFILE_SIZE,
141 'height' => AVATAR_PROFILE_SIZE,
142 'alt' => $nickname));
145 $this->element('div', 'entity_nickname', _('Nickname'));
147 $hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname';
149 // XXX: why are these raw() instead of escaped...?
151 $this->elementStart('a', array('href' => $profile,
152 'class' => 'url '.$hasFN));
153 $this->raw($nickname);
154 $this->elementEnd('a');
156 if (!is_null($fullname)) {
157 $this->elementStart('div', 'fn entity_fn');
158 $this->raw($fullname);
159 $this->elementEnd('div');
162 if (!is_null($location)) {
163 $this->elementStart('div', 'label entity_location');
164 $this->raw($location);
167 if (!is_null($homepage)) {
168 $this->elementStart('a', array('href' => $homepage,
169 'class' => 'url entity_url'));
170 $this->raw($homepage);
171 $this->elementEnd('a');
174 if (!is_null($bio)) {
175 $this->elementStart('div', 'note entity_note');
177 $this->elementEnd('dd');
180 if (!is_null($license)) {
181 $this->element('a', array('href' => $license,
182 'class' => 'license entity_license'),
186 $this->elementEnd('div');
188 $this->elementStart('div', 'entity_actions');
189 $this->elementStart('ul');
190 $this->elementStart('li', 'entity_subscribe');
191 $this->elementStart('form', array('method' => 'post',
192 'id' => 'userauthorization',
193 'class' => 'form_user_authorization',
194 'name' => 'userauthorization',
195 'action' => common_local_url(
196 'userauthorization')));
197 $this->hidden('token', common_session_token());
199 // TRANS: Button text on Authorise Subscription page.
200 $this->submit('accept', _m('BUTTON','Accept'), 'submit accept', null,
201 // TRANS: Title for button on Authorise Subscription page.
202 _('Subscribe to this user.'));
203 // TRANS: Button text on Authorise Subscription page.
204 $this->submit('reject', _m('BUTTON','Reject'), 'submit reject', null,
205 // TRANS: Title for button on Authorise Subscription page.
206 _('Reject this subscription.'));
207 $this->elementEnd('form');
208 $this->elementEnd('li');
209 $this->elementEnd('ul');
210 $this->elementEnd('div');
213 function sendAuthorization()
215 $srv = $this->getStoredParams();
218 // TRANS: Client error displayed for an empty authorisation request.
219 $this->clientError(_('No authorization request!'));
223 $accepted = $this->arg('accept');
225 list($val, $token) = $srv->continueUserAuth($accepted);
226 } catch (Exception $e) {
227 $this->clientError($e->getMessage());
230 if ($val !== false) {
231 common_redirect($val, 303);
232 } elseif ($accepted) {
233 $this->showAcceptMessage($token);
235 $this->showRejectMessage();
239 function showAcceptMessage($tok)
241 // TRANS: Accept message header from Authorise subscription page.
242 common_show_header(_('Subscription authorized'));
243 // TRANS: Accept message text from Authorise subscription page.
244 $this->element('p', null,
245 _('The subscription has been authorized, but no '.
246 'callback URL was passed. Check with the site’s ' .
247 'instructions for details on how to authorize the ' .
248 'subscription. Your subscription token is:'));
249 $this->element('blockquote', 'token', $tok);
250 common_show_footer();
253 function showRejectMessage()
255 // TRANS: Reject message header from Authorise subscription page.
256 common_show_header(_('Subscription rejected'));
257 // TRANS: Reject message from Authorise subscription page.
258 $this->element('p', null,
259 _('The subscription has been rejected, but no '.
260 'callback URL was passed. Check with the site’s ' .
261 'instructions for details on how to fully reject ' .
262 'the subscription.'));
263 common_show_footer();
266 function storeParams($params)
268 common_ensure_session();
269 $_SESSION['userauthorizationparams'] = serialize($params);
272 function clearParams()
274 common_ensure_session();
275 unset($_SESSION['userauthorizationparams']);
278 function getStoredParams()
280 common_ensure_session();
281 $params = unserialize($_SESSION['userauthorizationparams']);
285 function validateOmb()
287 $listener = $_GET['omb_listener'];
288 $listenee = $_GET['omb_listenee'];
289 $nickname = $_GET['omb_listenee_nickname'];
290 $profile = $_GET['omb_listenee_profile'];
292 $user = User::staticGet('uri', $listener);
294 // TRANS: Exception thrown when no valid user is found for an authorisation request.
295 // TRANS: %s is a listener URI.
296 throw new Exception(sprintf(_('Listener URI "%s" not found here.'),
300 if (strlen($listenee) > 255) {
301 // TRANS: Exception thrown when listenee URI is too long for an authorisation request.
302 // TRANS: %s is a listenee URI.
303 throw new Exception(sprintf(_('Listenee URI "%s" is too long.'),
307 $other = User::staticGet('uri', $listenee);
309 // TRANS: Exception thrown when listenee URI is a local user for an authorisation request.
310 // TRANS: %s is a listenee URI.
311 throw new Exception(sprintf(_('Listenee URI "%s" is a local user.'),
315 $remote = Remote_profile::staticGet('uri', $listenee);
317 $sub = new Subscription();
318 $sub->subscriber = $user->id;
319 $sub->subscribed = $remote->id;
320 if ($sub->find(true)) {
321 // TRANS: Exception thrown when already subscribed.
322 throw new Exception('You are already subscribed to this user.');
326 if ($profile == common_profile_url($nickname)) {
327 // TRANS: Exception thrown when profile URL is a local user for an authorisation request.
328 // TRANS: %s is a profile URL.
329 throw new Exception(sprintf(_('Profile URL "%s" is for a local user.'),
334 $license = $_GET['omb_listenee_license'];
335 $site_license = common_config('license', 'url');
336 if (!common_compatible_license($license, $site_license)) {
337 // TRANS: Exception thrown when licenses are not compatible for an authorisation request.
338 // TRANS: %1$s is the license for the listenee, %2$s is the license for "this" StatusNet site.
339 throw new Exception(sprintf(_('Listenee stream license "%1$s" is not ' .
340 'compatible with site license "%2$s".'),
341 $license, $site_license));
344 $avatar = $_GET['omb_listenee_avatar'];
346 if (!common_valid_http_url($avatar) || strlen($avatar) > 255) {
347 // TRANS: Exception thrown when avatar URL is invalid for an authorisation request.
348 // TRANS: %s is an avatar URL.
349 throw new Exception(sprintf(_('Avatar URL "%s" is not valid.'),
352 $size = @getimagesize($avatar);
354 // TRANS: Exception thrown when avatar URL could not be read for an authorisation request.
355 // TRANS: %s is an avatar URL.
356 throw new Exception(sprintf(_('Cannot read avatar URL "%s".'),
359 if (!in_array($size[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG,
361 // TRANS: Exception thrown when avatar URL return an invalid image type for an authorisation request.
362 // TRANS: %s is an avatar URL.
363 throw new Exception(sprintf(_('Wrong image type for avatar URL '.