597 lines
23 KiB
PHP
597 lines
23 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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* Class for doing OAuth authentication against Twitter
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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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* @author Julien C <chaumond@gmail.com>
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* @copyright 2009-2010 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('GNUSOCIAL')) { exit(1); }
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require_once dirname(__DIR__) . '/twitter.php';
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require_once INSTALLDIR . '/lib/util/oauthclient.php';
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/**
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* Class for doing OAuth authentication against Twitter
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*
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* Peforms the OAuth "dance" between StatusNet and Twitter -- requests a token,
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* authorizes it, and exchanges it for an access token. It also creates a link
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* (Foreign_link) between the StatusNet user and Twitter user and stores the
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* access token and secret in the link.
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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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* @author Julien C <chaumond@gmail.com>
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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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*/
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class TwitterauthorizationAction extends FormAction
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{
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var $twuid = null;
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var $tw_fields = null;
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var $access_token = null;
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var $verifier = null;
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protected $needLogin = false; // authorization page can also be used to create a new user
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protected function doPreparation()
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{
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$this->oauth_token = $this->arg('oauth_token');
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$this->verifier = $this->arg('oauth_verifier');
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if ($this->scoped instanceof Profile) {
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try {
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$flink = Foreign_link::getByUserID($this->scoped->getID(), TWITTER_SERVICE);
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$fuser = $flink->getForeignUser();
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// If there's already a foreign link record and a foreign user
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// (no exceptions were thrown when fetching either of them...)
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// it means the accounts are already linked, and this is unecessary.
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// So go back.
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common_redirect(common_local_url('twittersettings'));
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} catch (NoResultException $e) {
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// but if we don't have a foreign user linked, let's continue authorization procedure.
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}
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}
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}
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protected function doPost()
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{
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// User was not logged in to StatusNet before
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$this->twuid = $this->trimmed('twuid');
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$this->tw_fields = array('screen_name' => $this->trimmed('tw_fields_screen_name'),
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'fullname' => $this->trimmed('tw_fields_fullname'));
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$this->access_token = new OAuthToken($this->trimmed('access_token_key'), $this->trimmed('access_token_secret'));
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if ($this->arg('create')) {
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common_debug('TwitterBridgeDebug - POST with create');
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if (!$this->boolean('license')) {
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// TRANS: Form validation error displayed when the checkbox to agree to the license has not been checked.
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throw new ClientException(_m('You cannot register if you do not agree to the license.'));
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}
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return $this->createNewUser();
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} elseif ($this->arg('connect')) {
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common_debug('TwitterBridgeDebug - POST with connect');
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return $this->connectNewUser();
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}
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common_debug('TwitterBridgeDebug - ' . print_r($this->args, true));
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// TRANS: Form validation error displayed when an unhandled error occurs.
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throw new ClientException(_m('No known action for POST.'));
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}
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/**
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* Asks Twitter for a request token, and then redirects to Twitter
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* to authorize it.
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*/
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protected function authorizeRequestToken()
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{
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try {
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// Get a new request token and authorize it
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$client = new TwitterOAuthClient();
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$req_tok = $client->getTwitterRequestToken();
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// Sock the request token away in the session temporarily
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$_SESSION['twitter_request_token'] = $req_tok->key;
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$_SESSION['twitter_request_token_secret'] = $req_tok->secret;
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$auth_link = $client->getTwitterAuthorizeLink($req_tok, $this->boolean('signin'));
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} catch (OAuthClientException $e) {
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$msg = sprintf(
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'OAuth client error - code: %1s, msg: %2s',
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$e->getCode(),
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$e->getMessage()
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);
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common_log(LOG_INFO, 'Twitter bridge - ' . $msg);
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// TRANS: Server error displayed when linking to a Twitter account fails.
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throw new ServerException(_m('Could not link your Twitter account.'));
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}
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common_redirect($auth_link);
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}
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/**
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* Called when Twitter returns an authorized request token. Exchanges
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* it for an access token and stores it.
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*
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* @return nothing
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*/
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function saveAccessToken()
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{
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// Check to make sure Twitter returned the same request
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// token we sent them
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if ($_SESSION['twitter_request_token'] != $this->oauth_token) {
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// TRANS: Server error displayed when linking to a Twitter account fails because of an incorrect oauth_token.
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throw new ServerException(_m('Could not link your Twitter account: oauth_token mismatch.'));
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}
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$twitter_user = null;
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try {
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$client = new TwitterOAuthClient($_SESSION['twitter_request_token'], $_SESSION['twitter_request_token_secret']);
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// Exchange the request token for an access token
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$atok = $client->getTwitterAccessToken($this->verifier);
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// Test the access token and get the user's Twitter info
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$client = new TwitterOAuthClient($atok->key, $atok->secret);
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$twitter_user = $client->verifyCredentials();
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} catch (OAuthClientException $e) {
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$msg = sprintf(
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'OAuth client error - code: %1$s, msg: %2$s',
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$e->getCode(),
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$e->getMessage()
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);
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common_log(LOG_INFO, 'Twitter bridge - ' . $msg);
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// TRANS: Server error displayed when linking to a Twitter account fails.
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throw new ServerException(_m('Could not link your Twitter account.'));
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}
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if ($this->scoped instanceof Profile) {
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// Save the access token and Twitter user info
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$this->saveForeignLink($this->scoped->getID(), $twitter_user->id, $atok);
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save_twitter_user($twitter_user->id, $twitter_user->screen_name);
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} else {
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$this->twuid = $twitter_user->id;
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$this->tw_fields = array("screen_name" => $twitter_user->screen_name,
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"fullname" => $twitter_user->name);
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$this->access_token = $atok;
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return $this->tryLogin();
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}
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// Clean up the the mess we made in the session
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unset($_SESSION['twitter_request_token']);
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unset($_SESSION['twitter_request_token_secret']);
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if (common_logged_in()) {
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common_redirect(common_local_url('twittersettings'));
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}
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}
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/**
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* Saves a Foreign_link between Twitter user and local user,
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* which includes the access token and secret.
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*
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* @param int $user_id StatusNet user ID
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* @param int $twuid Twitter user ID
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* @param OAuthToken $token the access token to save
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*
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* @return nothing
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*/
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function saveForeignLink($user_id, $twuid, $access_token)
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{
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$flink = new Foreign_link();
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$flink->user_id = $user_id;
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$flink->service = TWITTER_SERVICE;
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// delete stale flink, if any
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$result = $flink->find(true);
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if (!empty($result)) {
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$flink->safeDelete();
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}
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$flink->user_id = $user_id;
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$flink->foreign_id = $twuid;
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$flink->service = TWITTER_SERVICE;
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$creds = TwitterOAuthClient::packToken($access_token);
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$flink->credentials = $creds;
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$flink->created = common_sql_now();
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// Defaults: noticesync on, everything else off
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$flink->set_flags(true, false, false, false, false);
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$flink_id = $flink->insert();
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// We want to make sure we got a numerical >0 value, not just failed the insert (which would be === false)
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if (empty($flink_id)) {
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common_log_db_error($flink, 'INSERT', __FILE__);
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// TRANS: Server error displayed when linking to a Twitter account fails.
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throw new ServerException(_m('Could not link your Twitter account.'));
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}
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return $flink_id;
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}
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function getInstructions()
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{
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// TRANS: Page instruction. %s is the StatusNet sitename.
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return sprintf(_m('This is the first time you have logged into %s so we must connect your Twitter account 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'));
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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('Twitter Account Setup');
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}
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public function showPage()
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{
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// $this->oauth_token is only populated once Twitter authorizes our
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// request token. If it's empty we're at the beginning of the auth
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// process
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if (empty($this->error)) {
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if (empty($this->oauth_token)) {
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// authorizeRequestToken either throws an exception or redirects
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$this->authorizeRequestToken();
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} else {
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$this->saveAccessToken();
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}
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}
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parent::showPage();
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}
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/**
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* @fixme much of this duplicates core code, which is very fragile.
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* Should probably be replaced with an extensible mini version of
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* the core registration form.
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*/
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function showContent()
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{
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_settings_twitter_connect',
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'class' => 'form_settings',
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'action' => common_local_url('twitterauthorization')));
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$this->elementStart('fieldset', array('id' => 'settings_twitter_connect_options'));
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// TRANS: Fieldset legend.
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$this->element('legend', null, _m('Connection options'));
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$this->hidden('access_token_key', $this->access_token->key);
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$this->hidden('access_token_secret', $this->access_token->secret);
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$this->hidden('twuid', $this->twuid);
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$this->hidden('tw_fields_screen_name', $this->tw_fields['screen_name']);
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$this->hidden('tw_fields_name', $this->tw_fields['fullname']);
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$this->hidden('token', common_session_token());
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// Only allow new account creation if site is not flagged invite-only
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if (!common_config('site', 'inviteonly')) {
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$this->elementStart('fieldset');
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$this->element('legend', null,
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// TRANS: Fieldset legend.
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_m('Create new account'));
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$this->element('p', null,
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// TRANS: Sub form introduction text.
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_m('Create a new user with this nickname.'));
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$this->elementStart('ul', 'form_data');
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// Hook point for captcha etc
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Event::handle('StartRegistrationFormData', array($this));
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$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 ?: '',
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// TRANS: Field title for nickname field.
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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->elementStart('li');
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// TRANS: Field label.
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$this->input('email', _m('LABEL','Email'), $this->getEmail(),
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// TRANS: Field title for e-mail address field.
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_m('Used only for updates, announcements, '.
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'and password recovery'));
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$this->elementEnd('li');
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// Hook point for captcha etc
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Event::handle('EndRegistrationFormData', array($this));
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$this->elementEnd('ul');
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// TRANS: Button text for creating a new StatusNet account in the Twitter connect page.
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$this->submit('create', _m('BUTTON','Create'));
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$this->elementEnd('fieldset');
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}
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$this->elementStart('fieldset');
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$this->element('legend', null,
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// TRANS: Fieldset legend.
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_m('Connect existing account'));
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$this->element('p', null,
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// TRANS: Sub form introduction text.
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_m('If you already have an account, login with your username and password to connect it to your Twitter account.'));
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$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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// TRANS: Field label.
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$this->password('password', _m('Password'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementEnd('fieldset');
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$this->elementStart('fieldset');
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$this->element('legend', null,
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// TRANS: Fieldset legend.
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_m('License'));
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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: Text for license agreement checkbox.
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// TRANS: %s is the license as configured for the StatusNet site.
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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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$this->elementEnd('fieldset');
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// TRANS: Button text for connecting an existing StatusNet account in the Twitter connect page..
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$this->submit('connect', _m('BUTTON','Connect'));
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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}
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/**
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* Get specified e-mail from the form, or the invite code.
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*
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* @return string
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*/
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function getEmail()
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{
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$email = $this->trimmed('email');
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if (!empty($email)) {
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return $email;
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}
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// Terrible hack for invites...
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if (common_config('site', 'inviteonly')) {
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$code = $_SESSION['invitecode'];
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if ($code) {
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$invite = Invitation::getKV($code);
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if ($invite && $invite->address_type == 'email') {
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return $invite->address;
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}
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}
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}
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return '';
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}
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protected function createNewUser()
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{
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common_debug('TwitterBridgeDebug - createNewUser');
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if (!Event::handle('StartRegistrationTry', array($this))) {
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common_debug('TwitterBridgeDebug - StartRegistrationTry failed');
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// TRANS: Client error displayed when trying to create a new user but a plugin aborted the process.
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throw new ClientException(_m('Registration of new user was aborted, maybe you failed a captcha?'));
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}
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if (common_config('site', 'closed')) {
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common_debug('TwitterBridgeDebug - site is closed for registrations');
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// TRANS: Client error displayed when trying to create a new user while creating new users is not allowed.
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throw new ClientException(_m('Registration not allowed.'));
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}
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$invite = null;
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if (common_config('site', 'inviteonly')) {
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common_debug('TwitterBridgeDebug - site is inviteonly');
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$code = $_SESSION['invitecode'];
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if (empty($code)) {
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// TRANS: Client error displayed when trying to create a new user while creating new users is not allowed.
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throw new ClientException(_m('Registration not allowed.'));
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}
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$invite = Invitation::getKV('code', $code);
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if (!$invite instanceof Invite) {
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common_debug('TwitterBridgeDebug - and we failed the invite code test');
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// TRANS: Client error displayed when trying to create a new user with an invalid invitation code.
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throw new ClientException(_m('Not a valid invitation code.'));
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}
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}
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common_debug('TwitterBridgeDebug - trying our nickname: '.$this->trimmed('newname'));
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// Nickname::normalize throws exception if the nickname is taken
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$nickname = Nickname::normalize($this->trimmed('newname'), true);
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$fullname = trim($this->tw_fields['fullname']);
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$args = array('nickname' => $nickname, 'fullname' => $fullname);
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if (!empty($invite)) {
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$args['code'] = $invite->code;
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}
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$email = $this->getEmail();
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if (!empty($email)) {
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$args['email'] = $email;
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}
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common_debug('TwitterBridgeDebug - registering user with args:'.var_export($args,true));
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$user = User::register($args);
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common_debug('TwitterBridgeDebug - registered the user and saving foreign link for '.$user->id);
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$this->saveForeignLink($user->id,
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$this->twuid,
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$this->access_token);
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common_debug('TwitterBridgeDebug - saving twitter user after creating new local user '.$user->id);
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save_twitter_user($this->twuid, $this->tw_fields['screen_name']);
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common_set_user($user);
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common_real_login(true);
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common_debug('TwitterBridge Plugin - ' .
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"Registered new user $user->id from Twitter user $this->twuid");
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Event::handle('EndRegistrationTry', array($this));
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common_redirect(common_local_url('showstream', array('nickname' => $user->nickname)), 303);
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}
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function connectNewUser()
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{
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$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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// TRANS: Form validation error displayed when connecting an existing user to a Twitter user fails because
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// TRANS: the provided username and/or password are incorrect.
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throw new ClientException(_m('Invalid username or password.'));
|
|
}
|
|
|
|
$user = User::getKV('nickname', $nickname);
|
|
|
|
if ($user instanceof User) {
|
|
common_debug('TwitterBridge Plugin - ' .
|
|
"Legit user to connect to Twitter: $nickname");
|
|
}
|
|
|
|
// throws exception on failure
|
|
$this->saveForeignLink($user->id,
|
|
$this->twuid,
|
|
$this->access_token);
|
|
|
|
save_twitter_user($this->twuid, $this->tw_fields['screen_name']);
|
|
|
|
common_debug('TwitterBridge Plugin - ' .
|
|
"Connected Twitter user $this->twuid 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, $this->twuid);
|
|
|
|
if (empty($result)) {
|
|
// TRANS: Server error displayed connecting a user to a Twitter user has failed.
|
|
$this->serverError(_m('Error connecting user to Twitter.'));
|
|
}
|
|
|
|
common_debug('TwitterBridge Plugin - ' .
|
|
"Connected Twitter user $this->twuid to local user $user->id");
|
|
|
|
// Return to Twitter connection settings tab
|
|
common_redirect(common_local_url('twittersettings'), 303);
|
|
}
|
|
|
|
protected function tryLogin()
|
|
{
|
|
common_debug('TwitterBridge Plugin - ' .
|
|
"Trying login for Twitter user $this->twuid.");
|
|
|
|
try {
|
|
$flink = Foreign_link::getByForeignID($this->twuid, TWITTER_SERVICE);
|
|
$user = $flink->getUser();
|
|
|
|
common_debug('TwitterBridge Plugin - ' .
|
|
"Logged in Twitter user $flink->foreign_id as user $user->id ($user->nickname)");
|
|
|
|
common_set_user($user);
|
|
common_real_login(true);
|
|
$this->goHome($user->nickname);
|
|
} catch (NoResultException $e) {
|
|
// Either no Foreign_link was found or not the user connected to it.
|
|
// Let's just continue to allow creating or logging in as a new user.
|
|
}
|
|
common_debug("TwitterBridge Plugin - No flink found for twuid: {$this->twuid} - new user");
|
|
|
|
// FIXME: what do we want to do here? I forgot
|
|
return;
|
|
throw new ServerException(_m('No foreign link found for Twitter user'));
|
|
}
|
|
|
|
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 bestNewNickname()
|
|
{
|
|
try {
|
|
return Nickname::normalize($this->tw_fields['fullname'], true);
|
|
} catch (NicknameException $e) {
|
|
return null;
|
|
}
|
|
}
|
|
}
|