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-rw-r--r--plugins/TwitterBridge/TwitterBridgePlugin.php101
-rw-r--r--plugins/TwitterBridge/twitterauthorization.php222
-rw-r--r--plugins/TwitterBridge/twitteroauthclient.php220
-rw-r--r--plugins/TwitterBridge/twittersettings.php272
4 files changed, 815 insertions, 0 deletions
diff --git a/plugins/TwitterBridge/TwitterBridgePlugin.php b/plugins/TwitterBridge/TwitterBridgePlugin.php
new file mode 100644
index 000000000..f7daa9a22
--- /dev/null
+++ b/plugins/TwitterBridge/TwitterBridgePlugin.php
@@ -0,0 +1,101 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * 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/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+/**
+ * Plugin for sending and importing Twitter statuses
+ *
+ * This class allows users to link their Twitter accounts
+ *
+ * @category Plugin
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ * @link http://twitter.com/
+ */
+
+class TwitterBridgePlugin extends Plugin
+{
+ /**
+ * Initializer for the plugin.
+ */
+
+ function __construct()
+ {
+ parent::__construct();
+ }
+
+ /**
+ * Add Twitter-related paths to the router table
+ *
+ * Hook for RouterInitialized event.
+ *
+ * @return boolean hook return
+ */
+
+ function onRouterInitialized(&$m)
+ {
+ $m->connect('twitter/authorization', array('action' => 'twitterauthorization'));
+ $m->connect('settings/twitter', array('action' => 'twittersettings'));
+
+ return true;
+ }
+
+ function onEndConnectSettingsNav(&$action)
+ {
+ $action_name = $action->trimmed('action');
+
+ $action->menuItem(common_local_url('twittersettings'),
+ _('Twitter'),
+ _('Twitter integration options'),
+ $action_name === 'twittersettings');
+
+ return true;
+ }
+
+ function onAutoload($cls)
+ {
+ switch ($cls)
+ {
+ case 'TwittersettingsAction':
+ case 'TwitterauthorizationAction':
+ require_once(INSTALLDIR.'/plugins/TwitterBridge/' . strtolower(mb_substr($cls, 0, -6)) . '.php');
+ return false;
+ case 'TwitterOAuthClient':
+ require_once(INSTALLDIR.'/plugins/TwitterBridge/twitteroAuthclient.php');
+ return false;
+ default:
+ return true;
+ }
+ }
+
+
+} \ No newline at end of file
diff --git a/plugins/TwitterBridge/twitterauthorization.php b/plugins/TwitterBridge/twitterauthorization.php
new file mode 100644
index 000000000..b04f35327
--- /dev/null
+++ b/plugins/TwitterBridge/twitterauthorization.php
@@ -0,0 +1,222 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Class for doing OAuth authentication against Twitter
+ *
+ * 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 Twitter
+ * @package Laconica
+ * @author Zach Copely <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/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+/**
+ * Class for doing OAuth authentication against Twitter
+ *
+ * Peforms the OAuth "dance" between Laconica and Twitter -- requests a token,
+ * authorizes it, and exchanges it for an access token. It also creates a link
+ * (Foreign_link) between the Laconica user and Twitter user and stores the
+ * access token and secret in the link.
+ *
+ * @category Twitter
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ *
+ */
+class TwitterauthorizationAction extends Action
+{
+ /**
+ * Initialize class members. Looks for 'oauth_token' parameter.
+ *
+ * @param array $args misc. arguments
+ *
+ * @return boolean true
+ */
+ function prepare($args)
+ {
+ parent::prepare($args);
+
+ $this->oauth_token = $this->arg('oauth_token');
+
+ return true;
+ }
+
+ /**
+ * Handler method
+ *
+ * @param array $args is ignored since it's now passed in in prepare()
+ *
+ * @return nothing
+ */
+ function handle($args)
+ {
+ parent::handle($args);
+
+ if (!common_logged_in()) {
+ $this->clientError(_('Not logged in.'), 403);
+ }
+
+ $user = common_current_user();
+ $flink = Foreign_link::getByUserID($user->id, TWITTER_SERVICE);
+
+ // If there's already a foreign link record, it means we already
+ // have an access token, and this is unecessary. So go back.
+
+ if (isset($flink)) {
+ common_redirect(common_local_url('twittersettings'));
+ }
+
+ // $this->oauth_token is only populated once Twitter authorizes our
+ // request token. If it's empty we're at the beginning of the auth
+ // process
+
+ if (empty($this->oauth_token)) {
+ $this->authorizeRequestToken();
+ } else {
+ $this->saveAccessToken();
+ }
+ }
+
+ /**
+ * Asks Twitter for a request token, and then redirects to Twitter
+ * to authorize it.
+ *
+ * @return nothing
+ */
+ function authorizeRequestToken()
+ {
+ try {
+
+ // Get a new request token and authorize it
+
+ $client = new TwitterOAuthClient();
+ $req_tok =
+ $client->getRequestToken(TwitterOAuthClient::$requestTokenURL);
+
+ // Sock the request token away in the session temporarily
+
+ $_SESSION['twitter_request_token'] = $req_tok->key;
+ $_SESSION['twitter_request_token_secret'] = $req_tok->secret;
+
+ $auth_link = $client->getAuthorizeLink($req_tok);
+
+ } catch (TwitterOAuthClientException $e) {
+ $msg = sprintf('OAuth client cURL error - code: %1s, msg: %2s',
+ $e->getCode(), $e->getMessage());
+ $this->serverError(_('Couldn\'t link your Twitter account.'));
+ }
+
+ common_redirect($auth_link);
+ }
+
+ /**
+ * Called when Twitter returns an authorized request token. Exchanges
+ * it for an access token and stores it.
+ *
+ * @return nothing
+ */
+ function saveAccessToken()
+ {
+
+ // Check to make sure Twitter returned the same request
+ // token we sent them
+
+ if ($_SESSION['twitter_request_token'] != $this->oauth_token) {
+ $this->serverError(_('Couldn\'t link your Twitter account.'));
+ }
+
+ try {
+
+ $client = new TwitterOAuthClient($_SESSION['twitter_request_token'],
+ $_SESSION['twitter_request_token_secret']);
+
+ // Exchange the request token for an access token
+
+ $atok = $client->getAccessToken(TwitterOAuthClient::$accessTokenURL);
+
+ // Test the access token and get the user's Twitter info
+
+ $client = new TwitterOAuthClient($atok->key, $atok->secret);
+ $twitter_user = $client->verifyCredentials();
+
+ } catch (OAuthClientException $e) {
+ $msg = sprintf('OAuth client cURL error - code: %1$s, msg: %2$s',
+ $e->getCode(), $e->getMessage());
+ $this->serverError(_('Couldn\'t link your Twitter account.'));
+ }
+
+ // Save the access token and Twitter user info
+
+ $this->saveForeignLink($atok, $twitter_user);
+
+ // Clean up the the mess we made in the session
+
+ unset($_SESSION['twitter_request_token']);
+ unset($_SESSION['twitter_request_token_secret']);
+
+ common_redirect(common_local_url('twittersettings'));
+ }
+
+ /**
+ * Saves a Foreign_link between Twitter user and local user,
+ * which includes the access token and secret.
+ *
+ * @param OAuthToken $access_token the access token to save
+ * @param mixed $twitter_user twitter API user object
+ *
+ * @return nothing
+ */
+ function saveForeignLink($access_token, $twitter_user)
+ {
+ $user = common_current_user();
+
+ $flink = new Foreign_link();
+
+ $flink->user_id = $user->id;
+ $flink->foreign_id = $twitter_user->id;
+ $flink->service = TWITTER_SERVICE;
+
+ $creds = TwitterOAuthClient::packToken($access_token);
+
+ $flink->credentials = $creds;
+ $flink->created = common_sql_now();
+
+ // Defaults: noticesync on, everything else off
+
+ $flink->set_flags(true, false, false, false);
+
+ $flink_id = $flink->insert();
+
+ if (empty($flink_id)) {
+ common_log_db_error($flink, 'INSERT', __FILE__);
+ $this->serverError(_('Couldn\'t link your Twitter account.'));
+ }
+
+ save_twitter_user($twitter_user->id, $twitter_user->screen_name);
+ }
+
+}
+
diff --git a/plugins/TwitterBridge/twitteroauthclient.php b/plugins/TwitterBridge/twitteroauthclient.php
new file mode 100644
index 000000000..b7dc4a80c
--- /dev/null
+++ b/plugins/TwitterBridge/twitteroauthclient.php
@@ -0,0 +1,220 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Class for doing OAuth calls against Twitter
+ *
+ * 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 Integration
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @copyright 2008 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/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+/**
+ * Class for talking to the Twitter API with OAuth.
+ *
+ * @category Integration
+ * @package Laconica
+ * @author Zach Copley <zach@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ *
+ */
+class TwitterOAuthClient extends OAuthClient
+{
+ public static $requestTokenURL = 'https://twitter.com/oauth/request_token';
+ public static $authorizeURL = 'https://twitter.com/oauth/authorize';
+ public static $accessTokenURL = 'https://twitter.com/oauth/access_token';
+
+ /**
+ * Constructor
+ *
+ * @param string $oauth_token the user's token
+ * @param string $oauth_token_secret the user's token secret
+ *
+ * @return nothing
+ */
+ function __construct($oauth_token = null, $oauth_token_secret = null)
+ {
+ $consumer_key = common_config('twitter', 'consumer_key');
+ $consumer_secret = common_config('twitter', 'consumer_secret');
+
+ parent::__construct($consumer_key, $consumer_secret,
+ $oauth_token, $oauth_token_secret);
+ }
+
+ // XXX: the following two functions are to support the horrible hack
+ // of using the credentils field in Foreign_link to store both
+ // the access token and token secret. This hack should go away with
+ // 0.9, in which we can make DB changes and add a new column for the
+ // token itself.
+
+ static function packToken($token)
+ {
+ return implode(chr(0), array($token->key, $token->secret));
+ }
+
+ static function unpackToken($str)
+ {
+ $vals = explode(chr(0), $str);
+ return new OAuthToken($vals[0], $vals[1]);
+ }
+
+ /**
+ * Builds a link to Twitter's endpoint for authorizing a request token
+ *
+ * @param OAuthToken $request_token token to authorize
+ *
+ * @return the link
+ */
+ function getAuthorizeLink($request_token)
+ {
+ return parent::getAuthorizeLink(self::$authorizeURL,
+ $request_token,
+ common_local_url('twitterauthorization'));
+ }
+
+ /**
+ * Calls Twitter's /account/verify_credentials API method
+ *
+ * @return mixed the Twitter user
+ */
+ function verifyCredentials()
+ {
+ $url = 'https://twitter.com/account/verify_credentials.json';
+ $response = $this->oAuthGet($url);
+ $twitter_user = json_decode($response);
+ return $twitter_user;
+ }
+
+ /**
+ * Calls Twitter's /stutuses/update API method
+ *
+ * @param string $status text of the status
+ * @param int $in_reply_to_status_id optional id of the status it's
+ * a reply to
+ *
+ * @return mixed the status
+ */
+ function statusesUpdate($status, $in_reply_to_status_id = null)
+ {
+ $url = 'https://twitter.com/statuses/update.json';
+ $params = array('status' => $status,
+ 'in_reply_to_status_id' => $in_reply_to_status_id);
+ $response = $this->oAuthPost($url, $params);
+ $status = json_decode($response);
+ return $status;
+ }
+
+ /**
+ * Calls Twitter's /stutuses/friends_timeline API method
+ *
+ * @param int $since_id show statuses after this id
+ * @param int $max_id show statuses before this id
+ * @param int $cnt number of statuses to show
+ * @param int $page page number
+ *
+ * @return mixed an array of statuses
+ */
+ function statusesFriendsTimeline($since_id = null, $max_id = null,
+ $cnt = null, $page = null)
+ {
+
+ $url = 'https://twitter.com/statuses/friends_timeline.json';
+ $params = array('since_id' => $since_id,
+ 'max_id' => $max_id,
+ 'count' => $cnt,
+ 'page' => $page);
+ $qry = http_build_query($params);
+
+ if (!empty($qry)) {
+ $url .= "?$qry";
+ }
+
+ $response = $this->oAuthGet($url);
+ $statuses = json_decode($response);
+ return $statuses;
+ }
+
+ /**
+ * Calls Twitter's /stutuses/friends API method
+ *
+ * @param int $id id of the user whom you wish to see friends of
+ * @param int $user_id numerical user id
+ * @param int $screen_name screen name
+ * @param int $page page number
+ *
+ * @return mixed an array of twitter users and their latest status
+ */
+ function statusesFriends($id = null, $user_id = null, $screen_name = null,
+ $page = null)
+ {
+ $url = "https://twitter.com/statuses/friends.json";
+
+ $params = array('id' => $id,
+ 'user_id' => $user_id,
+ 'screen_name' => $screen_name,
+ 'page' => $page);
+ $qry = http_build_query($params);
+
+ if (!empty($qry)) {
+ $url .= "?$qry";
+ }
+
+ $response = $this->oAuthGet($url);
+ $friends = json_decode($response);
+ return $friends;
+ }
+
+ /**
+ * Calls Twitter's /stutuses/friends/ids API method
+ *
+ * @param int $id id of the user whom you wish to see friends of
+ * @param int $user_id numerical user id
+ * @param int $screen_name screen name
+ * @param int $page page number
+ *
+ * @return mixed a list of ids, 100 per page
+ */
+ function friendsIds($id = null, $user_id = null, $screen_name = null,
+ $page = null)
+ {
+ $url = "https://twitter.com/friends/ids.json";
+
+ $params = array('id' => $id,
+ 'user_id' => $user_id,
+ 'screen_name' => $screen_name,
+ 'page' => $page);
+ $qry = http_build_query($params);
+
+ if (!empty($qry)) {
+ $url .= "?$qry";
+ }
+
+ $response = $this->oAuthGet($url);
+ $ids = json_decode($response);
+ return $ids;
+ }
+
+}
diff --git a/plugins/TwitterBridge/twittersettings.php b/plugins/TwitterBridge/twittersettings.php
new file mode 100644
index 000000000..a3e02e125
--- /dev/null
+++ b/plugins/TwitterBridge/twittersettings.php
@@ -0,0 +1,272 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Settings for Twitter integration
+ *
+ * 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 Settings
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @copyright 2008-2009 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/
+ */
+
+if (!defined('LACONICA')) {
+ exit(1);
+}
+
+require_once INSTALLDIR.'/lib/connectsettingsaction.php';
+require_once INSTALLDIR.'/lib/twitter.php';
+
+/**
+ * Settings for Twitter integration
+ *
+ * @category Settings
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ *
+ * @see SettingsAction
+ */
+
+class TwittersettingsAction extends ConnectSettingsAction
+{
+ /**
+ * Title of the page
+ *
+ * @return string Title of the page
+ */
+
+ function title()
+ {
+ return _('Twitter settings');
+ }
+
+ /**
+ * Instructions for use
+ *
+ * @return instructions for use
+ */
+
+ function getInstructions()
+ {
+ return _('Connect your Twitter account to share your updates ' .
+ 'with your Twitter friends and vice-versa.');
+ }
+
+ /**
+ * Content area of the page
+ *
+ * Shows a form for associating a Twitter account with this
+ * Laconica account. Also lets the user set preferences.
+ *
+ * @return void
+ */
+
+ function showContent()
+ {
+
+ $user = common_current_user();
+
+ $profile = $user->getProfile();
+
+ $fuser = null;
+
+ $flink = Foreign_link::getByUserID($user->id, TWITTER_SERVICE);
+
+ if (!empty($flink)) {
+ $fuser = $flink->getForeignUser();
+ }
+
+ $this->elementStart('form', array('method' => 'post',
+ 'id' => 'form_settings_twitter',
+ 'class' => 'form_settings',
+ 'action' =>
+ common_local_url('twittersettings')));
+
+ $this->hidden('token', common_session_token());
+
+ $this->elementStart('fieldset', array('id' => 'settings_twitter_account'));
+
+ if (empty($fuser)) {
+ $this->elementStart('ul', 'form_data');
+ $this->elementStart('li', array('id' => 'settings_twitter_login_button'));
+ $this->element('a', array('href' => common_local_url('twitterauthorization')),
+ 'Connect my Twitter account');
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+
+ $this->elementEnd('fieldset');
+ } else {
+ $this->element('legend', null, _('Twitter account'));
+ $this->elementStart('p', array('id' => 'form_confirmed'));
+ $this->element('a', array('href' => $fuser->uri), $fuser->nickname);
+ $this->elementEnd('p');
+ $this->element('p', 'form_note',
+ _('Connected Twitter account'));
+
+ $this->submit('remove', _('Remove'));
+
+ $this->elementEnd('fieldset');
+
+ $this->elementStart('fieldset', array('id' => 'settings_twitter_preferences'));
+
+ $this->element('legend', null, _('Preferences'));
+ $this->elementStart('ul', 'form_data');
+ $this->elementStart('li');
+ $this->checkbox('noticesend',
+ _('Automatically send my notices to Twitter.'),
+ ($flink) ?
+ ($flink->noticesync & FOREIGN_NOTICE_SEND) :
+ true);
+ $this->elementEnd('li');
+ $this->elementStart('li');
+ $this->checkbox('replysync',
+ _('Send local "@" replies to Twitter.'),
+ ($flink) ?
+ ($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY) :
+ true);
+ $this->elementEnd('li');
+ $this->elementStart('li');
+ $this->checkbox('friendsync',
+ _('Subscribe to my Twitter friends here.'),
+ ($flink) ?
+ ($flink->friendsync & FOREIGN_FRIEND_RECV) :
+ false);
+ $this->elementEnd('li');
+
+ if (common_config('twitterbridge','enabled')) {
+ $this->elementStart('li');
+ $this->checkbox('noticerecv',
+ _('Import my Friends Timeline.'),
+ ($flink) ?
+ ($flink->noticesync & FOREIGN_NOTICE_RECV) :
+ false);
+ $this->elementEnd('li');
+
+ // preserve setting even if bidrection bridge toggled off
+
+ if ($flink && ($flink->noticesync & FOREIGN_NOTICE_RECV)) {
+ $this->hidden('noticerecv', true, 'noticerecv');
+ }
+ }
+
+ $this->elementEnd('ul');
+
+ if ($flink) {
+ $this->submit('save', _('Save'));
+ } else {
+ $this->submit('add', _('Add'));
+ }
+
+ $this->elementEnd('fieldset');
+ }
+
+ $this->elementEnd('form');
+ }
+
+ /**
+ * Handle posts to this form
+ *
+ * Based on the button that was pressed, muxes out to other functions
+ * to do the actual task requested.
+ *
+ * All sub-functions reload the form with a message -- success or failure.
+ *
+ * @return void
+ */
+
+ function handlePost()
+ {
+ // CSRF protection
+ $token = $this->trimmed('token');
+ if (!$token || $token != common_session_token()) {
+ $this->showForm(_('There was a problem with your session token. '.
+ 'Try again, please.'));
+ return;
+ }
+
+ if ($this->arg('save')) {
+ $this->savePreferences();
+ } else if ($this->arg('remove')) {
+ $this->removeTwitterAccount();
+ } else {
+ $this->showForm(_('Unexpected form submission.'));
+ }
+ }
+
+ /**
+ * Disassociate an existing Twitter account from this account
+ *
+ * @return void
+ */
+
+ function removeTwitterAccount()
+ {
+ $user = common_current_user();
+ $flink = Foreign_link::getByUserID($user->id, TWITTER_SERVICE);
+
+ $result = $flink->delete();
+
+ if (empty($result)) {
+ common_log_db_error($flink, 'DELETE', __FILE__);
+ $this->serverError(_('Couldn\'t remove Twitter user.'));
+ return;
+ }
+
+ $this->showForm(_('Twitter account removed.'), true);
+ }
+
+ /**
+ * Save user's Twitter-bridging preferences
+ *
+ * @return void
+ */
+
+ function savePreferences()
+ {
+ $noticesend = $this->boolean('noticesend');
+ $noticerecv = $this->boolean('noticerecv');
+ $friendsync = $this->boolean('friendsync');
+ $replysync = $this->boolean('replysync');
+
+ $user = common_current_user();
+ $flink = Foreign_link::getByUserID($user->id, TWITTER_SERVICE);
+
+ if (empty($flink)) {
+ common_log_db_error($flink, 'SELECT', __FILE__);
+ $this->showForm(_('Couldn\'t save Twitter preferences.'));
+ return;
+ }
+
+ $original = clone($flink);
+ $flink->set_flags($noticesend, $noticerecv, $replysync, $friendsync);
+ $result = $flink->update($original);
+
+ if ($result === false) {
+ common_log_db_error($flink, 'UPDATE', __FILE__);
+ $this->showForm(_('Couldn\'t save Twitter preferences.'));
+ return;
+ }
+
+ $this->showForm(_('Twitter preferences saved.'), true);
+ }
+
+}