gnu-social/actions/profilecompletion.php

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2011-03-07 04:13:31 +09:00
<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008-2010, StatusNet, Inc.
*
* Subscription action.
*
* 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/>.
*
* PHP version 5
*
* @category Action
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
require_once INSTALLDIR . '/lib/peopletageditform.php';
/**
* Subscription action
*
* Subscribing to a profile. Does not work for OMB 0.1 remote subscriptions,
* but may work for other remote subscription protocols, like OStatus.
*
* Takes parameters:
*
* - subscribeto: a profile ID
* - token: session token to prevent CSRF attacks
* - ajax: boolean; whether to return Ajax or full-browser results
*
* Only works if the current user is logged in.
*
* @category Action
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
class ProfilecompletionAction extends Action
{
var $user;
var $peopletag;
var $field;
var $msg;
/**
* Check pre-requisites and instantiate attributes
*
* @param Array $args array of arguments (URL, GET, POST)
*
* @return boolean success flag
*/
function prepare($args)
{
parent::prepare($args);
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
// TRANS: Client error displayed when the session token does not match or is not given.
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$this->clientError(_('There was a problem with your session token.'.
' Try again, please.'));
return false;
}
// Only for logged-in users
$this->user = common_current_user();
if (empty($this->user)) {
// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
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$this->clientError(_('Not logged in.'));
return false;
}
$id = $this->arg('peopletag_id');
$this->peopletag = Profile_list::staticGet('id', $id);
if (empty($this->peopletag)) {
// TRANS: Client error displayed trying to reference a non-existing list.
$this->clientError(_('No such list.'));
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return false;
}
$field = $this->arg('field');
if (!in_array($field, array('fulltext', 'nickname', 'fullname', 'description', 'location', 'uri'))) {
// TRANS: Client error displayed when trying to add an unindentified field to profile.
// TRANS: %s is a field name.
$this->clientError(sprintf(_('Unidentified field %s.'), htmlspecialchars($field)), 404);
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return false;
}
$this->field = $field;
return true;
}
/**
* Handle request
*
* Does the subscription and returns results.
*
* @param Array $args unused.
*
* @return void
*/
function handle($args)
{
$this->msg = null;
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Page title.
$this->element('title', null, _m('TITLE','Search results'));
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$this->elementEnd('head');
$this->elementStart('body');
$profiles = $this->getResults();
if ($this->msg !== null) {
$this->element('p', 'error', $this->msg);
} else {
if (count($profiles) > 0) {
$this->elementStart('ul', array('id' => 'profile_search_results', 'class' => 'profile-lister'));
foreach ($profiles as $profile) {
$this->showProfileItem($profile);
}
$this->elementEnd('ul');
} else {
// TRANS: Output when there are no results for a search.
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$this->element('p', 'error', _('No results.'));
}
}
$this->elementEnd('body');
$this->elementEnd('html');
}
function getResults()
{
$profiles = array();
$q = $this->arg('q');
$q = strtolower($q);
if (strlen($q) < 3) {
// TRANS: Error message in case a search is shorter than three characters.
$this->msg = _('The search string must be at least 3 characters long.');
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}
$page = $this->arg('page');
$page = (int) (empty($page) ? 1 : $page);
$profile = new Profile();
$search_engine = $profile->getSearchEngine('profile');
if (Event::handle('StartProfileCompletionSearch', array($this, &$profile, $search_engine))) {
$search_engine->set_sort_mode('chron');
$search_engine->limit((($page-1)*PROFILES_PER_PAGE), PROFILES_PER_PAGE + 1);
if (false === $search_engine->query($q)) {
$cnt = 0;
}
else {
$cnt = $profile->find();
}
// @todo FIXME: Call-time pass-by-reference has been deprecated.
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Event::handle('EndProfileCompletionSearch', $this, &$profile, $search_engine);
}
while ($profile->fetch()) {
$profiles[] = clone($profile);
}
return $this->filter($profiles);
}
function filter($profiles)
{
$current = $this->user->getProfile();
$filtered_profiles = array();
foreach ($profiles as $profile) {
if ($current->canTag($profile)) {
$filtered_profiles[] = $profile;
}
}
return $filtered_profiles;
}
function showProfileItem($profile)
{
$this->elementStart('li', 'entity_removable_profile');
$item = new TaggedProfileItem($this, $profile);
$item->show();
$this->elementStart('span', 'entity_actions');
if ($profile->isTagged($this->peopletag)) {
$untag = new UntagButton($this, $profile, $this->peopletag);
$untag->show();
} else {
$tag = new TagButton($this, $profile, $this->peopletag);
$tag->show();
}
$this->elementEnd('span');
$this->elementEnd('li');
}
}