diff options
Diffstat (limited to 'plugins/FBConnect/FBConnectAuth.php')
| -rw-r--r-- | plugins/FBConnect/FBConnectAuth.php | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/plugins/FBConnect/FBConnectAuth.php b/plugins/FBConnect/FBConnectAuth.php new file mode 100644 index 000000000..4699ce636 --- /dev/null +++ b/plugins/FBConnect/FBConnectAuth.php @@ -0,0 +1,454 @@ +<?php +/** + * Laconica, the distributed open-source microblogging tool + * + * Plugin to enable Facebook Connect + * + * PHP version 5 + * + * LICENCE: 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/>. + * + * @category Plugin + * @package Laconica + * @author Zach Copley <zach@controlyourself.ca> + * @copyright 2009 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +require_once INSTALLDIR . '/plugins/FBConnect/FBConnectPlugin.php'; + +class FBConnectauthAction extends Action +{ + + var $fbuid = null; + var $fb_fields = null; + + function prepare($args) { + parent::prepare($args); + + try { + + $this->fbuid = getFacebook()->get_loggedin_user(); + + if ($this->fbuid > 0) { + $this->fb_fields = $this->getFacebookFields($this->fbuid, + array('first_name', 'last_name', 'name')); + } else { + common_debug("No Facebook User found."); + } + + } catch (Exception $e) { + common_log(LOG_WARNING, 'Problem getting Facebook uid: ' . + $e->getMessage()); + } + + return true; + } + + function handle($args) + { + parent::handle($args); + + if (common_is_real_login()) { + + // User is already logged in. Does she already have a linked Facebook acct? + $flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_CONNECT_SERVICE); + + if ($flink) { + + // User already has a linked Facebook account and shouldn't be here + common_debug('There is already a local user (' . $flink->user_id . + ') linked with this Facebook (' . $this->fbuid . ').'); + + // We don't want these cookies + getFacebook()->clear_cookie_state(); + + $this->clientError(_('There is already a local user linked with this Facebook.')); + + } else { + + // User came from the Facebook connect settings tab, and + // probably just wants to link/relink their Facebook account + $this->connectUser(); + } + + } else if ($_SERVER['REQUEST_METHOD'] == 'POST') { + + $token = $this->trimmed('token'); + if (!$token || $token != common_session_token()) { + $this->showForm(_('There was a problem with your session token. Try again, please.')); + return; + } + if ($this->arg('create')) { + if (!$this->boolean('license')) { + $this->showForm(_('You can\'t register if you don\'t agree to the license.'), + $this->trimmed('newname')); + return; + } + $this->createNewUser(); + } else if ($this->arg('connect')) { + $this->connectNewUser(); + } else { + common_debug(print_r($this->args, true), __FILE__); + $this->showForm(_('Something weird happened.'), + $this->trimmed('newname')); + } + } else { + $this->tryLogin(); + } + } + + function showPageNotice() + { + if ($this->error) { + $this->element('div', array('class' => 'error'), $this->error); + } else { + $this->element('div', 'instructions', + sprintf(_('This is the first time you\'ve logged into %s so we must connect your Facebook to a local account. You can either create a new account, or connect with your existing account, if you have one.'), common_config('site', 'name'))); + } + } + + function title() + { + return _('Facebook Account Setup'); + } + + function showForm($error=null, $username=null) + { + $this->error = $error; + $this->username = $username; + + $this->showPage(); + } + + function showPage() + { + parent::showPage(); + } + + function showContent() + { + if (!empty($this->message_text)) { + $this->element('p', null, $this->message); + return; + } + + $this->elementStart('form', array('method' => 'post', + 'id' => 'form_settings_facebook_connect', + 'class' => 'form_settings', + 'action' => common_local_url('FBConnectAuth'))); + $this->elementStart('fieldset', array('id' => 'settings_facebook_connect_options')); + $this->element('legend', null, _('Connection options')); + $this->elementStart('ul', 'form_data'); + $this->elementStart('li'); + $this->element('input', array('type' => 'checkbox', + 'id' => 'license', + 'class' => 'checkbox', + 'name' => 'license', + 'value' => 'true')); + $this->elementStart('label', array('class' => 'checkbox', 'for' => 'license')); + $this->text(_('My text and files are available under ')); + $this->element('a', array('href' => common_config('license', 'url')), + common_config('license', 'title')); + $this->text(_(' except this private data: password, email address, IM address, phone number.')); + $this->elementEnd('label'); + $this->elementEnd('li'); + $this->elementEnd('ul'); + + $this->elementStart('fieldset'); + $this->hidden('token', common_session_token()); + $this->element('legend', null, + _('Create new account')); + $this->element('p', null, + _('Create a new user with this nickname.')); + $this->elementStart('ul', 'form_data'); + $this->elementStart('li'); + $this->input('newname', _('New nickname'), + ($this->username) ? $this->username : '', + _('1-64 lowercase letters or numbers, no punctuation or spaces')); + $this->elementEnd('li'); + $this->elementEnd('ul'); + $this->submit('create', _('Create')); + $this->elementEnd('fieldset'); + + $this->elementStart('fieldset'); + $this->element('legend', null, + _('Connect existing account')); + $this->element('p', null, + _('If you already have an account, login with your username and password to connect it to your Facebook.')); + $this->elementStart('ul', 'form_data'); + $this->elementStart('li'); + $this->input('nickname', _('Existing nickname')); + $this->elementEnd('li'); + $this->elementStart('li'); + $this->password('password', _('Password')); + $this->elementEnd('li'); + $this->elementEnd('ul'); + $this->submit('connect', _('Connect')); + $this->elementEnd('fieldset'); + + $this->elementEnd('fieldset'); + $this->elementEnd('form'); + } + + function message($msg) + { + $this->message_text = $msg; + $this->showPage(); + } + + function createNewUser() + { + + if (common_config('site', 'closed')) { + $this->clientError(_('Registration not allowed.')); + return; + } + + $invite = null; + + if (common_config('site', 'inviteonly')) { + $code = $_SESSION['invitecode']; + if (empty($code)) { + $this->clientError(_('Registration not allowed.')); + return; + } + + $invite = Invitation::staticGet($code); + + if (empty($invite)) { + $this->clientError(_('Not a valid invitation code.')); + return; + } + } + + $nickname = $this->trimmed('newname'); + + if (!Validate::string($nickname, array('min_length' => 1, + 'max_length' => 64, + 'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) { + $this->showForm(_('Nickname must have only lowercase letters and numbers and no spaces.')); + return; + } + + if (!User::allowed_nickname($nickname)) { + $this->showForm(_('Nickname not allowed.')); + return; + } + + if (User::staticGet('nickname', $nickname)) { + $this->showForm(_('Nickname already in use. Try another one.')); + return; + } + + $fullname = trim($this->fb_fields['firstname'] . + ' ' . $this->fb_fields['lastname']); + + $args = array('nickname' => $nickname, 'fullname' => $fullname); + + if (!empty($invite)) { + $args['code'] = $invite->code; + } + + $user = User::register($args); + + $result = $this->flinkUser($user->id, $this->fbuid); + + if (!$result) { + $this->serverError(_('Error connecting user to Facebook.')); + return; + } + + common_set_user($user); + common_real_login(true); + + common_debug("Registered new user $user->id from Facebook user $this->fbuid"); + + common_redirect(common_local_url('showstream', array('nickname' => $user->nickname)), + 303); + } + + function connectNewUser() + { + $nickname = $this->trimmed('nickname'); + $password = $this->trimmed('password'); + + if (!common_check_user($nickname, $password)) { + $this->showForm(_('Invalid username or password.')); + return; + } + + $user = User::staticGet('nickname', $nickname); + + if ($user) { + common_debug("Legit user to connect to Facebook: $nickname"); + } + + $result = $this->flinkUser($user->id, $this->fbuid); + + if (!$result) { + $this->serverError(_('Error connecting user to Facebook.')); + return; + } + + common_debug("Connected Facebook user $this->fbuid to local user $user->id"); + + common_set_user($user); + common_real_login(true); + + $this->goHome($user->nickname); + } + + function connectUser() + { + $user = common_current_user(); + + $result = $this->flinkUser($user->id, $this->fbuid); + + if (!$result) { + $this->serverError(_('Error connecting user to Facebook.')); + return; + } + + common_debug("Connected Facebook user $this->fbuid to local user $user->id"); + + // Return to Facebook connection settings tab + common_redirect(common_local_url('FBConnectSettings'), 303); + } + + function tryLogin() + { + common_debug("Trying Facebook Login..."); + + $flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_CONNECT_SERVICE); + + if ($flink) { + $user = $flink->getUser(); + + if ($user) { + + common_debug("Logged in Facebook user $flink->foreign_id as user $user->id ($user->nickname)"); + + common_set_user($user); + common_real_login(true); + $this->goHome($user->nickname); + } + + } else { + + common_debug("No flink found for fbuid: $this->fbuid"); + + $this->showForm(null, $this->bestNewNickname()); + } + } + + function goHome($nickname) + { + $url = common_get_returnto(); + if ($url) { + // We don't have to return to it again + common_set_returnto(null); + } else { + $url = common_local_url('all', + array('nickname' => + $nickname)); + } + + common_redirect($url, 303); + } + + function flinkUser($user_id, $fbuid) + { + $flink = new Foreign_link(); + $flink->user_id = $user_id; + $flink->foreign_id = $fbuid; + $flink->service = FACEBOOK_CONNECT_SERVICE; + $flink->created = common_sql_now(); + + $flink_id = $flink->insert(); + + return $flink_id; + } + + function bestNewNickname() + { + if (!empty($this->fb_fields['name'])) { + $nickname = $this->nicknamize($this->fb_fields['name']); + if ($this->isNewNickname($nickname)) { + return $nickname; + } + } + + // Try the full name + + $fullname = trim($this->fb_fields['firstname'] . + ' ' . $this->fb_fields['lastname']); + + if (!empty($fullname)) { + $fullname = $this->nicknamize($fullname); + if ($this->isNewNickname($fullname)) { + return $fullname; + } + } + + return null; + } + + // Given a string, try to make it work as a nickname + + function nicknamize($str) + { + $str = preg_replace('/\W/', '', $str); + return strtolower($str); + } + + function isNewNickname($str) + { + if (!Validate::string($str, array('min_length' => 1, + 'max_length' => 64, + 'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) { + return false; + } + if (!User::allowed_nickname($str)) { + return false; + } + if (User::staticGet('nickname', $str)) { + return false; + } + return true; + } + + // XXX: Consider moving this to lib/facebookutil.php + function getFacebookFields($fb_uid, $fields) { + try { + + $facebook = getFacebook(); + + $infos = $facebook->api_client->users_getInfo($fb_uid, $fields); + + if (empty($infos)) { + return null; + } + return reset($infos); + + } catch (Exception $e) { + common_log(LOG_WARNING, "Facebook client failure when requesting " . + join(",", $fields) . " on uid " . $fb_uid . + " : ". $e->getMessage()); + return null; + } + } + +} |