<?php /** * Notice search action class. * * PHP version 5 * * @category Action * @package Laconica * @author Evan Prodromou <evan@controlyourself.ca> * @author Robin Millette <millette@controlyourself.ca> * @author Sarven Capadisli <csarven@controlyourself.ca> * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 * @link http://laconi.ca/ * * 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/searchaction.php'; /** * Notice search action class. * * @category Action * @package Laconica * @author Evan Prodromou <evan@controlyourself.ca> * @author Robin Millette <millette@controlyourself.ca> * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 * @link http://laconi.ca/ * @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('identica_notices'); $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')); 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' => $q)); } function isReadOnly() { return true; } } class SearchNoticeList extends NoticeList { function __construct($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 */ $pattern = '/('.implode('|', array_map('htmlspecialchars', $terms)).')/i'; $result = preg_replace($pattern, '<strong>\\1</strong>', $text); /* Remove highlighting from inside links, loop incase multiple highlights in links */ $pattern = '/(href="[^"]*)<strong>('.implode('|', array_map('htmlspecialchars', $terms)).')<\/strong>([^"]*")/iU'; do { $result = preg_replace($pattern, '\\1\\2\\3', $result, -1, $count); } while ($count); return $result; } }