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<?php
/**
* Notice search action class.
*
* PHP version 5
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Robin Millette <millette@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, 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('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
require_once INSTALLDIR.'/lib/searchaction.php';
/**
* Notice search action class.
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Robin Millette <millette@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
* @todo common parent for people and content search?
*/
class NoticesearchAction extends SearchAction
{
function prepare($args)
{
parent::prepare($args);
common_set_returnto($this->selfUrl());
return true;
}
/**
* Get instructions
*
* @return string instruction text
*/
function getInstructions()
{
return _('Search for notices on %%site.name%% by their contents. Separate search terms by spaces; they must be 3 characters or more.');
}
/**
* Get title
*
* @return string title
*/
function title()
{
return _('Text search');
}
function getFeeds()
{
$q = $this->trimmed('q');
if (!$q) {
return null;
}
return array(new Feed(Feed::RSS1, common_local_url('noticesearchrss',
array('q' => $q)),
sprintf(_('Search results for "%s" on %s'),
$q, common_config('site', 'name'))));
}
/**
* Show results
*
* @param string $q search query
* @param integer $page page number
*
* @return void
*/
function showResults($q, $page)
{
$notice = new Notice();
$search_engine = $notice->getSearchEngine('notice');
$search_engine->set_sort_mode('chron');
// Ask for an extra to see if there's more.
$search_engine->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
if (false === $search_engine->query($q)) {
$cnt = 0;
} else {
$cnt = $notice->find();
}
if ($cnt === 0) {
$this->element('p', 'error', _('No results.'));
$this->searchSuggestions($q);
if (common_logged_in()) {
$message = sprintf(_('Be the first to [post on this topic](%%%%action.newnotice%%%%?status_textarea=%s)!'), urlencode($q));
}
else {
$message = sprintf(_('Why not [register an account](%%%%action.register%%%%) and be the first to [post on this topic](%%%%action.newnotice%%%%?status_textarea=%s)!'), urlencode($q));
}
$this->elementStart('div', 'guide');
$this->raw(common_markup_to_html($message));
$this->elementEnd('div');
return;
}
$terms = preg_split('/[\s,]+/', $q);
$nl = new SearchNoticeList($notice, $this, $terms);
$cnt = $nl->show();
$this->pagination($page > 1, $cnt > NOTICES_PER_PAGE,
$page, 'noticesearch', array('q' => $q));
}
function showScripts()
{
parent::showScripts();
$this->autofocus('q');
}
}
class SearchNoticeList extends NoticeList {
function __construct($notice, $out=null, $terms)
{
parent::__construct($notice, $out);
$this->terms = $terms;
}
function newListItem($notice)
{
return new SearchNoticeListItem($notice, $this->out, $this->terms);
}
}
class SearchNoticeListItem extends NoticeListItem {
function __construct($notice, $out=null, $terms)
{
parent::__construct($notice, $out);
$this->terms = $terms;
}
function showContent()
{
// FIXME: URL, image, video, audio
$this->out->elementStart('p', array('class' => 'entry-content'));
if ($this->notice->rendered) {
$this->out->raw($this->highlight($this->notice->rendered, $this->terms));
} else {
// XXX: may be some uncooked notices in the DB,
// we cook them right now. This should probably disappear in future
// versions (>> 0.4.x)
$this->out->raw($this->highlight(common_render_content($this->notice->content, $this->notice), $this->terms));
}
$this->out->elementEnd('p');
}
/**
* Highlist query terms
*
* @param string $text notice text
* @param array $terms terms to highlight
*
* @return void
*/
function highlight($text, $terms)
{
/* Highligh search terms */
$options = implode('|', array_map('preg_quote', array_map('htmlspecialchars', $terms),
array_fill(0, sizeof($terms), '/')));
$pattern = "/($options)/i";
$result = preg_replace($pattern, '<strong>\\1</strong>', $text);
/* Remove highlighting from inside links, loop incase multiple highlights in links */
$pattern = '/(\w+="[^"]*)<strong>('.$options.')<\/strong>([^"]*")/iU';
do {
$result = preg_replace($pattern, '\\1\\2\\3', $result, -1, $count);
} while ($count);
return $result;
}
}
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