forked from GNUsocial/gnu-social
372 lines
14 KiB
PHP
372 lines
14 KiB
PHP
<?php
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/**
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* Let the user authorize a remote subscription request
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*
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* PHP version 5
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*
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* @category Action
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @author Robin Millette <millette@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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require_once INSTALLDIR.'/lib/omb.php';
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require_once INSTALLDIR.'/extlib/libomb/service_provider.php';
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require_once INSTALLDIR.'/extlib/libomb/profile.php';
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define('TIMESTAMP_THRESHOLD', 300);
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// @todo FIXME: Missing documentation.
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class UserauthorizationAction extends Action
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{
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var $error;
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var $params;
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function handle($args)
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{
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parent::handle($args);
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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/* Use a session token for CSRF protection. */
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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$srv = $this->getStoredParams();
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$this->showForm($srv->getRemoteUser(), _('There was a problem ' .
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'with your session token. Try again, ' .
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'please.'));
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return;
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}
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/* We've shown the form, now post user's choice. */
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$this->sendAuthorization();
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} else {
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if (!common_logged_in()) {
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/* Go log in, and then come back. */
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common_set_returnto($_SERVER['REQUEST_URI']);
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common_redirect(common_local_url('login'));
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return;
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}
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$user = common_current_user();
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$profile = $user->getProfile();
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if (!$profile) {
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common_log_db_error($user, 'SELECT', __FILE__);
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// TRANS: Server error displayed when trying to authorise a remote subscription request
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// TRANS: while the user has no profile.
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$this->serverError(_('User without matching profile.'));
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return;
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}
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/* TODO: If no token is passed the user should get a prompt to enter
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it according to OAuth Core 1.0. */
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try {
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$this->validateOmb();
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$srv = new OMB_Service_Provider(
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profile_to_omb_profile($user->uri, $profile),
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omb_oauth_datastore());
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$remote_user = $srv->handleUserAuth();
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} catch (Exception $e) {
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$this->clearParams();
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$this->clientError($e->getMessage());
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return;
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}
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$this->storeParams($srv);
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$this->showForm($remote_user);
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}
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}
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function showForm($params, $error=null)
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{
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$this->params = $params;
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$this->error = $error;
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$this->showPage();
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}
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function title()
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{
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// TRANS: Page title.
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return _('Authorize subscription');
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}
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function showPageNotice()
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{
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// TRANS: Page notice on "Authorize subscription" page.
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$this->element('p', null, _('Please check these details to make sure '.
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'that you want to subscribe to this ' .
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'user’s notices. If you didn’t just ask ' .
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'to subscribe to someone’s notices, '.
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'click "Reject".'));
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}
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function showContent()
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{
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$params = $this->params;
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$nickname = $params->getNickname();
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$profile = $params->getProfileURL();
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$license = $params->getLicenseURL();
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$fullname = $params->getFullname();
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$homepage = $params->getHomepage();
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$bio = $params->getBio();
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$location = $params->getLocation();
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$avatar = $params->getAvatarURL();
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$this->elementStart('div', 'entity_profile vcard');
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if ($avatar) {
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$this->element('img', array('src' => $avatar,
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'class' => 'photo avatar entity_depiction',
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'width' => AVATAR_PROFILE_SIZE,
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'height' => AVATAR_PROFILE_SIZE,
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'alt' => $nickname));
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}
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// TRANS: Label for nickname on user authorisation page.
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$this->element('div', 'entity_nickname', _('Nickname'));
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$hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname';
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// XXX: why are these raw() instead of escaped...?
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$this->elementStart('a', array('href' => $profile,
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'class' => 'url '.$hasFN));
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$this->raw($nickname);
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$this->elementEnd('a');
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if (!is_null($fullname)) {
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$this->elementStart('div', 'fn entity_fn');
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$this->raw($fullname);
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$this->elementEnd('div');
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}
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if (!is_null($location)) {
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$this->elementStart('div', 'label entity_location');
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$this->raw($location);
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}
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if (!is_null($homepage)) {
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$this->elementStart('a', array('href' => $homepage,
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'class' => 'url entity_url'));
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$this->raw($homepage);
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$this->elementEnd('a');
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}
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if (!is_null($bio)) {
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$this->elementStart('div', 'note entity_note');
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$this->raw($bio);
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$this->elementEnd('dd');
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}
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if (!is_null($license)) {
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$this->element('a', array('href' => $license,
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'class' => 'license entity_license'),
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$license);
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}
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$this->elementEnd('div');
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$this->elementStart('div', 'entity_actions');
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$this->elementStart('ul');
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$this->elementStart('li', 'entity_subscribe');
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$this->elementStart('form', array('method' => 'post',
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'id' => 'userauthorization',
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'class' => 'form_user_authorization',
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'name' => 'userauthorization',
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'action' => common_local_url(
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'userauthorization')));
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$this->hidden('token', common_session_token());
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$this->submit('accept',
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// TRANS: Button text on Authorise Subscription page.
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_m('BUTTON','Accept'), 'submit accept', null,
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// TRANS: Title for button on Authorise Subscription page.
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_('Subscribe to this user.'));
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$this->submit('reject',
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// TRANS: Button text on Authorise Subscription page.
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_m('BUTTON','Reject'), 'submit reject', null,
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// TRANS: Title for button on Authorise Subscription page.
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_('Reject this subscription.'));
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$this->elementEnd('form');
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementEnd('div');
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}
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function sendAuthorization()
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{
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$srv = $this->getStoredParams();
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if (is_null($srv)) {
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// TRANS: Client error displayed for an empty authorisation request.
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$this->clientError(_('No authorization request!'));
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return;
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}
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$accepted = $this->arg('accept');
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try {
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list($val, $token) = $srv->continueUserAuth($accepted);
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} catch (Exception $e) {
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$this->clientError($e->getMessage());
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return;
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}
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if ($val !== false) {
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common_redirect($val, 303);
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} elseif ($accepted) {
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$this->showAcceptMessage($token);
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} else {
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$this->showRejectMessage();
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}
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}
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function showAcceptMessage($tok)
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{
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// TRANS: Accept message header from Authorise subscription page.
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common_show_header(_('Subscription authorized'));
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$this->element('p', null,
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// TRANS: Accept message text from Authorise subscription page.
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_('The subscription has been authorized, but no '.
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'callback URL was passed. Check with the site\'s ' .
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'instructions for details on how to authorize the ' .
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'subscription. Your subscription token is:'));
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$this->element('blockquote', 'token', $tok);
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common_show_footer();
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}
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function showRejectMessage()
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{
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// TRANS: Reject message header from Authorise subscription page.
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common_show_header(_('Subscription rejected'));
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$this->element('p', null,
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// TRANS: Reject message from Authorise subscription page.
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_('The subscription has been rejected, but no '.
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'callback URL was passed. Check with the site\'s ' .
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'instructions for details on how to fully reject ' .
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'the subscription.'));
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common_show_footer();
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}
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function storeParams($params)
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{
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common_ensure_session();
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$_SESSION['userauthorizationparams'] = serialize($params);
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}
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function clearParams()
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{
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common_ensure_session();
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unset($_SESSION['userauthorizationparams']);
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}
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function getStoredParams()
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{
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common_ensure_session();
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$params = unserialize($_SESSION['userauthorizationparams']);
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return $params;
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}
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function validateOmb()
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{
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$listener = $_GET['omb_listener'];
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$listenee = $_GET['omb_listenee'];
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$nickname = $_GET['omb_listenee_nickname'];
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$profile = $_GET['omb_listenee_profile'];
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$user = User::staticGet('uri', $listener);
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if (!$user) {
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// TRANS: Exception thrown when no valid user is found for an authorisation request.
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// TRANS: %s is a listener URI.
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throw new Exception(sprintf(_('Listener URI "%s" not found here.'),
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$listener));
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}
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if (strlen($listenee) > 255) {
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// TRANS: Exception thrown when listenee URI is too long for an authorisation request.
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// TRANS: %s is a listenee URI.
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throw new Exception(sprintf(_('Listenee URI "%s" is too long.'),
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$listenee));
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}
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$other = User::staticGet('uri', $listenee);
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if ($other) {
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// TRANS: Exception thrown when listenee URI is a local user for an authorisation request.
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// TRANS: %s is a listenee URI.
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throw new Exception(sprintf(_('Listenee URI "%s" is a local user.'),
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$listenee));
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}
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$remote = Remote_profile::staticGet('uri', $listenee);
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if ($remote) {
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$sub = new Subscription();
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$sub->subscriber = $user->id;
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$sub->subscribed = $remote->id;
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if ($sub->find(true)) {
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// TRANS: Exception thrown when already subscribed.
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throw new Exception('You are already subscribed to this user.');
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}
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}
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if ($profile == common_profile_url($nickname)) {
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// TRANS: Exception thrown when profile URL is a local user for an authorisation request.
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// TRANS: %s is a profile URL.
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throw new Exception(sprintf(_('Profile URL "%s" is for a local user.'),
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$profile));
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}
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$license = $_GET['omb_listenee_license'];
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$site_license = common_config('license', 'url');
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if (!common_compatible_license($license, $site_license)) {
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// TRANS: Exception thrown when licenses are not compatible for an authorisation request.
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// TRANS: %1$s is the license for the listenee, %2$s is the license for "this" StatusNet site.
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throw new Exception(sprintf(_('Listenee stream license "%1$s" is not ' .
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'compatible with site license "%2$s".'),
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$license, $site_license));
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}
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$avatar = $_GET['omb_listenee_avatar'];
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if ($avatar) {
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if (!common_valid_http_url($avatar) || strlen($avatar) > 255) {
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// TRANS: Exception thrown when avatar URL is invalid for an authorisation request.
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// TRANS: %s is an avatar URL.
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throw new Exception(sprintf(_('Avatar URL "%s" is not valid.'),
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$avatar));
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}
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$size = @getimagesize($avatar);
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if (!$size) {
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// TRANS: Exception thrown when avatar URL could not be read for an authorisation request.
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// TRANS: %s is an avatar URL.
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throw new Exception(sprintf(_('Cannot read avatar URL "%s".'),
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$avatar));
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}
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if (!in_array($size[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG,
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IMAGETYPE_PNG))) {
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// TRANS: Exception thrown when avatar URL return an invalid image type for an authorisation request.
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// TRANS: %s is an avatar URL.
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throw new Exception(sprintf(_('Wrong image type for avatar URL '.
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'"%s".'), $avatar));
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}
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}
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}
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}
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