549 lines
17 KiB
PHP
549 lines
17 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Register a local user and connect it to a Facebook account
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*
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* PHP version 5
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*
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* LICENCE: 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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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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class FacebookregisterAction extends Action
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{
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private $facebook = null; // Facebook client
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private $fbuid = null; // Facebook user ID
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private $fbuser = null; // Facebook user object (JSON)
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function prepare($args) {
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parent::prepare($args);
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$this->facebook = new Facebook(
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array(
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'appId' => common_config('facebook', 'appid'),
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'secret' => common_config('facebook', 'secret'),
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'cookie' => true,
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)
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);
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// Check for a Facebook user session
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$session = $this->facebook->getSession();
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$me = null;
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if ($session) {
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try {
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$this->fbuid = $this->facebook->getUser();
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$this->fbuser = $this->facebook->api('/me');
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} catch (FacebookApiException $e) {
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common_log(LOG_ERROR, $e, __FILE__);
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}
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}
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if (!empty($this->fbuser)) {
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// OKAY, all is well... proceed to register
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common_debug("Found a valid Facebook user.", __FILE__);
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} else {
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// This shouldn't happen in the regular course of things
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list($proxy, $ip) = common_client_ip();
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common_log(
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LOG_WARNING,
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sprintf(
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'Failed Facebook authentication attempt, proxy = %s, ip = %s.',
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$proxy,
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$ip
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),
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__FILE__
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);
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$this->clientError(
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_m('You must be logged into Facebook to register a local account using Facebook.')
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);
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}
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return true;
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}
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function handle($args)
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{
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parent::handle($args);
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if (common_is_real_login()) {
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// User is already logged in, are her accounts already linked?
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$flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_SERVICE);
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if (!empty($flink)) {
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// User already has a linked Facebook account and shouldn't be here!
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common_debug(
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sprintf(
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'There\'s already a local user %d linked with Facebook user %s.',
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$flink->user_id,
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$this->fbuid
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)
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);
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$this->clientError(
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_m('There is already a local account linked with that Facebook account.')
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);
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} else {
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// Possibly reconnect an existing account
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$this->connectUser();
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}
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} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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$this->showForm(
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_m('There was a problem with your session token. Try again, please.'));
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return;
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}
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if ($this->arg('create')) {
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if (!$this->boolean('license')) {
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$this->showForm(
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_m('You can\'t register if you don\'t agree to the license.'),
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$this->trimmed('newname')
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);
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return;
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}
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// We has a valid Facebook session and the Facebook user has
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// agreed to the SN license, so create a new user
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$this->createNewUser();
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} else if ($this->arg('connect')) {
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$this->connectNewUser();
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} else {
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$this->showForm(
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_m('An unknown error has occured.'),
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$this->trimmed('newname')
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);
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}
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} else {
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$this->tryLogin();
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}
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}
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function showPageNotice()
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{
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if ($this->error) {
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$this->element('div', array('class' => 'error'), $this->error);
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} else {
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$this->element(
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'div', 'instructions',
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// TRANS: %s is the site name.
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sprintf(
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_m('This is the first time you\'ve logged into %s so we must connect your Facebook to a local account. You can either create a new local account, or connect with an existing local account.'),
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common_config('site', 'name')
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)
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);
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}
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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 _m('Facebook Setup');
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}
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function showForm($error=null, $username=null)
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{
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$this->error = $error;
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$this->username = $username;
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$this->showPage();
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}
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function showPage()
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{
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parent::showPage();
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}
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/**
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* @fixme much of this duplicates core code, which is very fragile.
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* Should probably be replaced with an extensible mini version of
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* the core registration form.
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*/
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function showContent()
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{
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if (!empty($this->message_text)) {
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$this->element('p', null, $this->message);
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return;
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}
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_settings_facebook_connect',
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'class' => 'form_settings',
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'action' => common_local_url('facebookregister')));
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$this->elementStart('fieldset', array('id' => 'settings_facebook_connect_options'));
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// TRANS: Legend.
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$this->element('legend', null, _m('Connection options'));
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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$this->element('input', array('type' => 'checkbox',
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'id' => 'license',
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'class' => 'checkbox',
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'name' => 'license',
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'value' => 'true'));
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$this->elementStart('label', array('class' => 'checkbox', 'for' => 'license'));
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// TRANS: %s is the name of the license used by the user for their status updates.
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$message = _m('My text and files are available under %s ' .
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'except this private data: password, ' .
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'email address, IM address, and phone number.');
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$link = '<a href="' .
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htmlspecialchars(common_config('license', 'url')) .
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'">' .
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htmlspecialchars(common_config('license', 'title')) .
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'</a>';
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$this->raw(sprintf(htmlspecialchars($message), $link));
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$this->elementEnd('label');
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementStart('fieldset');
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$this->hidden('token', common_session_token());
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$this->element('legend', null,
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// TRANS: Legend.
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_m('Create new account'));
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$this->element('p', null,
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_m('Create a new user with this nickname.'));
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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// TRANS: Field label.
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$this->input('newname', _m('New nickname'),
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($this->username) ? $this->username : '',
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_m('1-64 lowercase letters or numbers, no punctuation or spaces'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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// TRANS: Submit button.
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$this->submit('create', _m('BUTTON','Create'));
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$this->elementEnd('fieldset');
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$this->elementStart('fieldset');
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// TRANS: Legend.
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$this->element('legend', null,
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_m('Connect existing account'));
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$this->element('p', null,
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_m('If you already have an account, login with your username and password to connect it to your Facebook.'));
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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// TRANS: Field label.
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$this->input('nickname', _m('Existing nickname'));
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$this->elementEnd('li');
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$this->elementStart('li');
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$this->password('password', _m('Password'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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// TRANS: Submit button.
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$this->submit('connect', _m('BUTTON','Connect'));
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$this->elementEnd('fieldset');
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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}
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function message($msg)
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{
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$this->message_text = $msg;
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$this->showPage();
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}
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function createNewUser()
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{
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if (common_config('site', 'closed')) {
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// TRANS: Client error trying to register with registrations not allowed.
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$this->clientError(_m('Registration not allowed.'));
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return;
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}
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$invite = null;
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if (common_config('site', 'inviteonly')) {
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$code = $_SESSION['invitecode'];
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if (empty($code)) {
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// TRANS: Client error trying to register with registrations 'invite only'.
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$this->clientError(_m('Registration not allowed.'));
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return;
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}
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$invite = Invitation::staticGet($code);
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if (empty($invite)) {
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// TRANS: Client error trying to register with an invalid invitation code.
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$this->clientError(_m('Not a valid invitation code.'));
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return;
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}
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}
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$nickname = $this->trimmed('newname');
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if (!Validate::string($nickname, array('min_length' => 1,
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'max_length' => 64,
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'format' => NICKNAME_FMT))) {
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$this->showForm(_m('Nickname must have only lowercase letters and numbers and no spaces.'));
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return;
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}
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if (!User::allowed_nickname($nickname)) {
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$this->showForm(_m('Nickname not allowed.'));
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return;
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}
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if (User::staticGet('nickname', $nickname)) {
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$this->showForm(_m('Nickname already in use. Try another one.'));
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return;
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}
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$args = array(
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'nickname' => $nickname,
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'fullname' => $this->fbuser['firstname'] . ' ' . $this->fbuser['lastname'],
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// XXX: Figure out how to get email
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'homepage' => $this->fbuser['link'],
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'bio' => $this->fbuser['about'],
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'location' => $this->fbuser['location']['name']
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);
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if (!empty($invite)) {
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$args['code'] = $invite->code;
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}
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$user = User::register($args);
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$result = $this->flinkUser($user->id, $this->fbuid);
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if (!$result) {
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$this->serverError(_m('Error connecting user to Facebook.'));
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return;
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}
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common_set_user($user);
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common_real_login(true);
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common_log(
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LOG_INFO,
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sprintf(
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'Registered new user %d from Facebook user %s',
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$user->id,
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$this->fbuid
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),
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__FILE__
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);
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common_redirect(
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common_local_url(
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'showstream',
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array('nickname' => $user->nickname)
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),
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303
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);
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}
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function connectNewUser()
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{
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$nickname = $this->trimmed('nickname');
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$password = $this->trimmed('password');
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if (!common_check_user($nickname, $password)) {
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$this->showForm(_m('Invalid username or password.'));
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return;
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}
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$user = User::staticGet('nickname', $nickname);
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if (!empty($user)) {
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common_debug('Facebook Connect Plugin - ' .
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"Legit user to connect to Facebook: $nickname");
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}
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$result = $this->flinkUser($user->id, $this->fbuid);
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if (!$result) {
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$this->serverError(_m('Error connecting user to Facebook.'));
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return;
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}
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common_debug('Facebook Connnect Plugin - ' .
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"Connected Facebook user $this->fbuid to local user $user->id");
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common_set_user($user);
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common_real_login(true);
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$this->goHome($user->nickname);
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}
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function connectUser()
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{
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$user = common_current_user();
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$result = $this->flinkUser($user->id, $this->fbuid);
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if (empty($result)) {
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$this->serverError(_m('Error connecting user to Facebook.'));
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return;
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}
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common_debug('Facebook Connect Plugin - ' .
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"Connected Facebook user $this->fbuid to local user $user->id");
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// Return to Facebook connection settings tab
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common_redirect(common_local_url('FBConnectSettings'), 303);
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}
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function tryLogin()
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{
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common_debug('Facebook Connect Plugin - ' .
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"Trying login for Facebook user $this->fbuid.");
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$flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_CONNECT_SERVICE);
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if (!empty($flink)) {
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$user = $flink->getUser();
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if (!empty($user)) {
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common_debug('Facebook Connect Plugin - ' .
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"Logged in Facebook user $flink->foreign_id as user $user->id ($user->nickname)");
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common_set_user($user);
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common_real_login(true);
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$this->goHome($user->nickname);
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}
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} else {
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common_debug('Facebook Connect Plugin - ' .
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"No flink found for fbuid: $this->fbuid - new user");
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$this->showForm(null, $this->bestNewNickname());
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}
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}
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function goHome($nickname)
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{
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$url = common_get_returnto();
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if ($url) {
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// We don't have to return to it again
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common_set_returnto(null);
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} else {
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$url = common_local_url('all',
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array('nickname' =>
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$nickname));
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}
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common_redirect($url, 303);
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}
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function flinkUser($user_id, $fbuid)
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{
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$flink = new Foreign_link();
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$flink->user_id = $user_id;
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$flink->foreign_id = $fbuid;
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$flink->service = FACEBOOK_SERVICE;
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// Pull the access token from the Facebook cookies
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$flink->credentials = $this->facebook->getAccessToken();
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$flink->created = common_sql_now();
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$flink_id = $flink->insert();
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return $flink_id;
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}
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function bestNewNickname()
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{
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if (!empty($this->fbuser['name'])) {
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$nickname = $this->nicknamize($this->fbuser['name']);
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if ($this->isNewNickname($nickname)) {
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return $nickname;
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}
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}
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// Try the full name
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$fullname = trim($this->fbuser['firstname'] .
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' ' . $this->fbuser['lastname']);
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if (!empty($fullname)) {
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$fullname = $this->nicknamize($fullname);
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if ($this->isNewNickname($fullname)) {
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return $fullname;
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}
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}
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return null;
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}
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/**
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* Given a string, try to make it work as a nickname
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*/
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function nicknamize($str)
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{
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$str = preg_replace('/\W/', '', $str);
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return strtolower($str);
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}
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function isNewNickname($str)
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{
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if (!Validate::string($str, array('min_length' => 1,
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'max_length' => 64,
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'format' => NICKNAME_FMT))) {
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return false;
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}
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if (!User::allowed_nickname($str)) {
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return false;
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}
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if (User::staticGet('nickname', $str)) {
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return false;
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}
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return true;
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}
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}
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