forked from GNUsocial/gnu-social
498 lines
15 KiB
PHP
498 lines
15 KiB
PHP
<?php
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/**
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* Laconica, the distributed open-source microblogging tool
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*
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* Settings for Twitter integration
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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 Settings
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @copyright 2008-2009 Control Yourself, 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://laconi.ca/
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*/
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if (!defined('LACONICA')) {
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exit(1);
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}
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require_once INSTALLDIR.'/lib/settingsaction.php';
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define('SUBSCRIPTIONS', 80);
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/**
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* Settings for Twitter integration
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*
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* @category Settings
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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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://laconi.ca/
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*
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* @see SettingsAction
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*/
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class TwittersettingsAction extends SettingsAction
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{
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/**
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* Title of the page
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*
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* @return string Title of the page
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*/
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function title()
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{
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_('Twitter settings');
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}
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/**
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* Instructions for use
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*
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* @return instructions for use
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*/
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function getInstructions()
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{
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return _('Add your Twitter account to automatically send '.
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' your notices to Twitter, ' .
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'and subscribe to Twitter friends already here.');
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}
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/**
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* Content area of the page
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*
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* Shows a form for associating a Twitter account with this
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* Laconica account. Also lets the user set preferences.
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*
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* @return void
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*/
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function showContent()
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{
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$user = common_current_user();
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$profile = $user->getProfile();
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$fuser = null;
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$flink = Foreign_link::getByUserID($user->id, 1); // 1 == Twitter
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if ($flink) {
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$fuser = $flink->getForeignUser();
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}
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_settings_twitter',
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'class' => 'form_settings',
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'action' =>
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common_local_url('twittersettings')));
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$this->elementStart('fieldset', array('id' => 'settings_twitter_account'));
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$this->element('legend', null, _('Twitter Account'));
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$this->hidden('token', common_session_token());
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$this->elementStart('ul', 'form_datas');
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if ($fuser) {
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$this->elementStart('li');
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$this->element('span', 'twitter_user', $fuser->nickname);
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$this->element('a', array('href' => $fuser->uri), $fuser->uri);
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$this->element('p', 'form_guide',
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_('Current verified Twitter account.'));
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$this->hidden('flink_foreign_id', $flink->foreign_id);
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$this->submit('remove', _('Remove'));
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$this->elementEnd('li');
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} else {
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$this->elementStart('li');
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$this->input('twitter_username', _('Twitter user name'),
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($this->arg('twitter_username')) ?
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$this->arg('twitter_username') :
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$profile->nickname,
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_('No spaces, please.')); // hey, it's what Twitter says
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$this->elementEnd('li');
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$this->elementStart('li');
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$this->password('twitter_password', _('Twitter password'));
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$this->elementend('li');
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}
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$this->elementEnd('ul');
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$this->elementEnd('fieldset');
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$this->elementStart('fieldset', array('id' => 'settings_twitter_preferences'));
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$this->element('legend', null, _('Preferences'));
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$this->elementStart('ul');
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$this->elementStart('li');
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$this->checkbox('noticesync',
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_('Automatically send my notices to Twitter.'),
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($flink) ?
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($flink->noticesync & FOREIGN_NOTICE_SEND) :
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true);
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$this->elementEnd('li');
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$this->elementStart('li');
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$this->checkbox('replysync',
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_('Send local "@" replies to Twitter.'),
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($flink) ?
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($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY) :
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true);
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$this->elementEnd('li');
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$this->elementStart('li');
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$this->checkbox('friendsync',
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_('Subscribe to my Twitter friends here.'),
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($flink) ?
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($flink->friendsync & FOREIGN_FRIEND_RECV) :
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false);
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$this->elementEnd('li');
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$this->elementEnd('ul');
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if ($flink) {
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$this->submit('save', _('Save'));
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} else {
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$this->submit('add', _('Add'));
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}
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$this->elementEnd('fieldset');
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$this->showTwitterSubscriptions();
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$this->elementEnd('form');
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}
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/**
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* Gets some of the user's Twitter friends
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*
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* Gets the number of Twitter friends that are on this
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* instance of Laconica.
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*
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* @return array array of User objects
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*/
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function subscribedTwitterUsers()
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{
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$current_user = common_current_user();
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$qry = 'SELECT user.* ' .
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'FROM subscription ' .
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'JOIN user ON subscription.subscribed = user.id ' .
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'JOIN foreign_link ON foreign_link.user_id = user.id ' .
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'WHERE subscriber = %d ' .
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'ORDER BY user.nickname';
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$user = new User();
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$user->query(sprintf($qry, $current_user->id));
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$users = array();
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while ($user->fetch()) {
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// Don't include the user's own self-subscription
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if ($user->id != $current_user->id) {
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$users[] = clone($user);
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}
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}
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return $users;
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}
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/**
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* Show user's Twitter friends
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*
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* Gets the number of Twitter friends that are on this
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* instance of Laconica, and shows their mini-avatars.
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*
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* @return void
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*/
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function showTwitterSubscriptions()
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{
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$friends = $this->subscribedTwitterUsers();
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$friends_count = count($friends);
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if ($friends_count > 0) {
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$this->element('h3', null, _('Twitter Friends'));
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$this->elementStart('div', array('id' => 'subscriptions'));
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$this->elementStart('ul', array('id' => 'subscriptions_avatars'));
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for ($i = 0; $i < min($friends_count, SUBSCRIPTIONS); $i++) {
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$other = Profile::staticGet($friends[$i]->id);
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if (!$other) {
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common_log_db_error($subs, 'SELECT', __FILE__);
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continue;
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}
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$this->elementStart('li');
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$this->elementStart('a', array('title' => ($other->fullname) ?
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$other->fullname :
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$other->nickname,
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'href' => $other->profileurl,
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'rel' => 'contact',
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'class' => 'subscription'));
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$avatar = $other->getAvatar(AVATAR_MINI_SIZE);
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$avatar_url = ($avatar) ?
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common_avatar_display_url($avatar) :
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common_default_avatar(AVATAR_MINI_SIZE);
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$this->element('img', array('src' => $avatar_url,
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'width' => AVATAR_MINI_SIZE,
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'height' => AVATAR_MINI_SIZE,
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'class' => 'avatar mini',
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'alt' => ($other->fullname) ?
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$other->fullname :
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$other->nickname));
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$this->elementEnd('a');
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$this->elementEnd('li');
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}
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$this->elementEnd('ul');
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$this->elementEnd('div');
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}
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}
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/**
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* Handle posts to this form
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*
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* Based on the button that was pressed, muxes out to other functions
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* to do the actual task requested.
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*
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* All sub-functions reload the form with a message -- success or failure.
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*
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* @return void
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*/
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function handlePost()
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{
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// CSRF protection
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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$this->showForm(_('There was a problem with your session token. '.
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'Try again, please.'));
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return;
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}
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if ($this->arg('save')) {
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$this->savePreferences();
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} else if ($this->arg('add')) {
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$this->addTwitterAccount();
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} else if ($this->arg('remove')) {
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$this->removeTwitterAccount();
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} else {
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$this->showForm(_('Unexpected form submission.'));
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}
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}
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/**
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* Associate a Twitter account with the user's account
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*
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* Validates post input; verifies it against Twitter; and if
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* successful stores in the database.
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*
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* @return void
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*/
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function addTwitterAccount()
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{
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$screen_name = $this->trimmed('twitter_username');
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$password = $this->trimmed('twitter_password');
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$noticesync = $this->boolean('noticesync');
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$replysync = $this->boolean('replysync');
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$friendsync = $this->boolean('friendsync');
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if (!Validate::string($screen_name,
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array('min_length' => 1,
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'max_length' => 15,
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'format' => VALIDATE_NUM.VALIDATE_ALPHA.'_'))) {
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$this->showForm(_('Username must have only numbers, '.
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'upper- and lowercase letters, '.
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'and underscore (_). 15 chars max.'));
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return;
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}
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if (!$this->verifyCredentials($screen_name, $password)) {
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$this->showForm(_('Could not verify your Twitter credentials!'));
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return;
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}
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$twit_user = twitter_user_info($screen_name, $password);
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if (!$twit_user) {
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$this->showForm(sprintf(_('Unable to retrieve account information '.
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'For "%s" from Twitter.'),
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$screen_name));
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return;
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}
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if (!save_twitter_user($twit_user->id, $screen_name)) {
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$this->showForm(_('Unable to save your Twitter settings!'));
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return;
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}
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$user = common_current_user();
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$flink = new Foreign_link();
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$flink->user_id = $user->id;
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$flink->foreign_id = $twit_user->id;
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$flink->service = 1; // Twitter
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$flink->credentials = $password;
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$flink->created = common_sql_now();
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$flink->set_flags($noticesync, $replysync, $friendsync);
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$flink_id = $flink->insert();
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if (!$flink_id) {
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common_log_db_error($flink, 'INSERT', __FILE__);
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$this->showForm(_('Unable to save your Twitter settings!'));
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return;
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}
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if ($friendsync) {
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save_twitter_friends($user, $twit_user->id, $screen_name, $password);
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}
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$this->showForm(_('Twitter settings saved.'), true);
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}
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/**
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* Disassociate an existing Twitter account from this account
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*
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* @return void
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*/
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function removeTwitterAccount()
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{
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$user = common_current_user();
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$flink = Foreign_link::getByUserID($user->id, 1);
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$flink_foreign_id = $this->arg('flink_foreign_id');
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// Maybe an old tab open...?
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if ($flink->foreign_id != $flink_foreign_id) {
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$this->showForm(_('That is not your Twitter account.'));
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return;
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}
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$result = $flink->delete();
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if (!$result) {
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common_log_db_error($flink, 'DELETE', __FILE__);
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$this->serverError(_('Couldn\'t remove Twitter user.'));
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return;
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}
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$this->showForm(_('Twitter account removed.'), true);
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}
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/**
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* Save user's Twitter-bridging preferences
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*
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* @return void
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*/
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function savePreferences()
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{
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$noticesync = $this->boolean('noticesync');
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$friendsync = $this->boolean('friendsync');
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$replysync = $this->boolean('replysync');
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$user = common_current_user();
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$flink = Foreign_link::getByUserID($user->id, 1);
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if (!$flink) {
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common_log_db_error($flink, 'SELECT', __FILE__);
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$this->showForm(_('Couldn\'t save Twitter preferences.'));
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return;
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}
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$twitter_id = $flink->foreign_id;
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$password = $flink->credentials;
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$fuser = $flink->getForeignUser();
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if (!$fuser) {
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common_log_db_error($fuser, 'SELECT', __FILE__);
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$this->showForm(_('Couldn\'t save Twitter preferences.'));
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return;
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}
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$screen_name = $fuser->nickname;
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$original = clone($flink);
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$flink->set_flags($noticesync, $replysync, $friendsync);
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$result = $flink->update($original);
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if ($result === false) {
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common_log_db_error($flink, 'UPDATE', __FILE__);
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$this->showForm(_('Couldn\'t save Twitter preferences.'));
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return;
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}
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if ($friendsync) {
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save_twitter_friends($user, $flink->foreign_id, $screen_name, $password);
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}
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$this->showForm(_('Twitter preferences saved.'), true);
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}
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/**
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* Verifies a username and password against Twitter's API
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*
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* @param string $screen_name Twitter user name
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* @param string $password Twitter password
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*
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* @return boolean success flag
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*/
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function verifyCredentials($screen_name, $password)
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{
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$uri = 'http://twitter.com/account/verifyCredentials.json';
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$data = get_twitter_data($uri, $screen_name, $password);
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if (!$data) {
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return false;
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}
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$user = json_decode($data);
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if (!$user) {
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return false;
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}
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$twitter_id = $user->id;
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if ($twitter_id) {
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return $twitter_id;
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}
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return false;
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}
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}
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