gnu-social/actions/remotesubscribe.php
Evan Prodromou 59beff6b46 Revert "Added configuration option to only allow OpenID logins."
This reverts commit 14b46e2183.

This functionality will need to be rewritten to work with the new
OpenIDPlugin.

Conflicts:

	index.php
	lib/logingroupnav.php
2009-08-21 16:45:42 -04:00

210 lines
6.8 KiB
PHP
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<?php
/**
* Handler for remote subscription
*
* 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.
*
* 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('LACONICA')) {
exit(1);
}
require_once INSTALLDIR.'/lib/omb.php';
require_once INSTALLDIR.'/extlib/libomb/service_consumer.php';
require_once INSTALLDIR.'/extlib/libomb/profile.php';
/**
* Handler for remote subscription
*
* @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 RemotesubscribeAction extends Action
{
var $nickname;
var $profile_url;
var $err;
function prepare($args)
{
parent::prepare($args);
if (common_logged_in()) {
$this->clientError(_('You can use the local subscription!'));
return false;
}
$this->nickname = $this->trimmed('nickname');
$this->profile_url = $this->trimmed('profile_url');
return true;
}
function handle($args)
{
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
/* Use a session token for CSRF protection. */
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
$this->remoteSubscription();
} else {
$this->showForm();
}
}
function showForm($err=null)
{
$this->err = $err;
$this->showPage();
}
function showPageNotice()
{
if ($this->err) {
$this->element('div', 'error', $this->err);
} else {
$inst = _('To subscribe, you can [login](%%action.login%%),' .
' or [register](%%action.register%%) a new ' .
' account. If you already have an account ' .
' on a [compatible microblogging site](%%doc.openmublog%%), ' .
' enter your profile URL below.');
$output = common_markup_to_html($inst);
$this->elementStart('div', 'instructions');
$this->raw($output);
$this->elementEnd('div');
}
}
function title()
{
return _('Remote subscribe');
}
function showContent()
{
/* The id 'remotesubscribe' conflicts with the
button on profile page. */
$this->elementStart('form', array('id' => 'form_remote_subscribe',
'method' => 'post',
'class' => 'form_settings',
'action' => common_local_url('remotesubscribe')));
$this->elementStart('fieldset');
$this->element('legend', _('Subscribe to a remote user'));
$this->hidden('token', common_session_token());
$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->input('nickname', _('User nickname'), $this->nickname,
_('Nickname of the user you want to follow'));
$this->elementEnd('li');
$this->elementStart('li');
$this->input('profile_url', _('Profile URL'), $this->profile_url,
_('URL of your profile on another compatible microblogging service'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('submit', _('Subscribe'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
function remoteSubscription()
{
if (!$this->nickname) {
$this->showForm(_('No such user.'));
return;
}
$user = User::staticGet('nickname', $this->nickname);
$this->profile_url = $this->trimmed('profile_url');
if (!$this->profile_url) {
$this->showForm(_('No such user'));
return;
}
if (!common_valid_http_url($this->profile_url)) {
$this->showForm(_('Invalid profile URL (bad format)'));
return;
}
try {
$service = new OMB_Service_Consumer($this->profile_url,
common_root_url(),
omb_oauth_datastore());
} catch (OMB_InvalidYadisException $e) {
$this->showForm(_('Not a valid profile URL (no YADIS document or ' .
'no or invalid XRDS defined).'));
return;
}
if ($service->getServiceURI(OAUTH_ENDPOINT_REQUEST) ==
common_local_url('requesttoken') ||
User::staticGet('uri', $service->getRemoteUserURI())) {
$this->showForm(_('Thats a local profile! Login to subscribe.'));
return;
}
try {
$service->requestToken();
} catch (OMB_RemoteServiceException $e) {
$this->showForm(_('Couldnt get a request token.'));
return;
}
/* Create an OMB_Profile from $user. */
$profile = $user->getProfile();
if (!$profile) {
common_log_db_error($user, 'SELECT', __FILE__);
$this->serverError(_('User without matching profile'));
return;
}
$target_url = $service->requestAuthorization(
profile_to_omb_profile($user->uri, $profile),
common_local_url('finishremotesubscribe'));
common_ensure_session();
$_SESSION['oauth_authorization_request'] = serialize($service);
/* Redirect to the remote service for authorization. */
common_redirect($target_url, 303);
}
}
?>