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<?php
/*
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2008, Controlez-Vous, Inc.
*
* 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/>.
*/
if (!defined('LACONICA')) { exit(1); }
require_once(INSTALLDIR.'/lib/settingsaction.php');
class TwittersettingsAction extends SettingsAction {
function get_instructions() {
return _('Enter your Twitter credentials to automatically send your notices to Twitter, ' .
'and subscribe to Twitter friends already here.');
}
function show_form($msg=NULL, $success=false) {
$user = common_current_user();
$profile = $user->getProfile();
$this->form_header(_('Twitter settings'), $msg, $success);
common_element_start('form', array('method' => 'post',
'id' => 'twittersettings',
'action' =>
common_local_url('twittersettings')));
common_input('twitter_username', _('Twitter Username'),
($this->arg('twitter_username')) ? $this->arg('twitter_username') : $profile->nickname,
_('No spaces, please.')); // hey, it's what Twitter says
common_password('twitter_password', _('Twitter Password'));
// these checkboxes don't do anything yet
common_checkbox('repost', _('Automatically send my notices to Twitter.'), true);
common_checkbox('subscribe_friends', _('Subscribe to my Twitter friends here.'), true);
common_submit('submit', _('Save'));
common_element_end('form');
common_show_footer();
}
function handle_post() {
$twitter_username = $this->trimmed('twitter_username');
$twitter_password = $this->trimmed('twitter_password');
if (!Validate::string($twitter_username, array('min_length' => 1,
'max_length' => 64,
'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
$this->show_form(_('Username must have only lowercase letters and numbers and no spaces.'));
return;
}
// Verify this is a real Twitter user.
if (!$this->verify_credentials($twitter_username, $twitter_password)) {
$this->show_form(_('Could not verify your Twitter credentials!'));
return;
}
// Now that we have a valid Twitter user, we have to make another api call to
// find its Twitter ID.
$twitter_id = $this->get_twitter_id($twitter_username);
if (!$twitter_id) {
$this->show_form(sprintf(_('Unable to retrieve account information for "%s" from Twitter.'), $twitter_username));
return;
}
$user = common_current_user();
$fuser = Foreign_user::save(
array(
'id' => $twitter_id,
'service' => '0', // Twitter
'uri' => "http://www.twitter.com/$twitter_username",
'nickname' => $twitter_username,
'user_id' => $user->id,
'credentials' => $twitter_password
));
if (!$fuser) {
$this->show_form(_('Unable to save your Twitter credentials!'));
}
$this->show_form(_('Twitter settings saved.'), true);
}
function get_twitter_id($twitter_username) {
$uri = "http://twitter.com/users/show/$twitter_username.json";
common_debug("uri; $uri");
$data = $this->get_twitter_data($uri);
if (!$data) {
return NULL;
}
$user = json_decode($data);
if (!$user) {
return NULL;
}
return $user->id;
}
function verify_credentials($user, $password) {
$uri = 'http://twitter.com/account/verify_credentials.json';
$data = $this->get_twitter_data($uri, $user, $password);
if (!$data) {
return false;
}
$creds = json_decode($data);
if (!$creds) {
return false;
}
if ($creds->authorized == 1) {
return true;
}
return false;
}
// PHP's cURL the best thing to use here? -- Zach
function get_twitter_data($uri, $user=NULL, $password=NULL) {
$options = array(
CURLOPT_USERPWD => "$user:$password",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FAILONERROR => true,
CURLOPT_HEADER => false,
CURLOPT_FOLLOWLOCATION => true,
// CURLOPT_USERAGENT => "identi.ca",
CURLOPT_CONNECTTIMEOUT => 120,
CURLOPT_TIMEOUT => 120
);
$ch = curl_init($uri);
curl_setopt_array($ch, $options);
$data = curl_exec($ch);
$errmsg = curl_error($ch);
if ($errmsg) {
common_debug("cURL error: $errmsg - trying to load: $uri with user $user.", __FILE__);
}
curl_close($ch);
return $data;
}
}
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