gnu-social/actions/noticesearch.php

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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/searchaction.php');
define('NOTICES_PER_PAGE', 20);
# XXX common parent for people and content search?
class NoticesearchAction extends SearchAction {
function get_instructions() {
return _('Search for notices on %%site.name%% by their contents. Separate search terms by spaces; they must be 3 characters or more.');
}
function get_title() {
return _('Text search');
}
function show_results($q, $page) {
$notice = new Notice();
# lcase it for comparison
$q = strtolower($q);
if(common_config('db','type')=='mysql') {
$notice->whereAdd('MATCH(content) against (\''.addslashes($q).'\')');
} else {
$notice->whereAdd('to_tsvector(\'english\', content) @@ plainto_tsquery(\''.addslashes($q).'\')');
}
# Ask for an extra to see if there's more.
$notice->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
$cnt = $notice->find();
if ($cnt > 0) {
$terms = preg_split('/[\s,]+/', $q);
common_element_start('ul', array('id' => 'notices'));
for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
if ($notice->fetch()) {
$this->show_notice($notice, $terms);
} else {
// shouldn't happen!
break;
}
}
common_element_end('ul');
} else {
common_element('p', 'error', _('No results'));
}
common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
$page, 'noticesearch', array('q' => $q));
}
function show_header($arr) {
if ($arr) {
$q = $arr[0];
}
if ($q) {
common_element('link', array('rel' => 'alternate',
'href' => common_local_url('noticesearchrss',
array('q' => $q)),
'type' => 'application/rss+xml',
'title' => _('Search Stream Feed')));
}
}
# XXX: refactor and combine with StreamAction::show_notice()
function show_notice($notice, $terms) {
$profile = $notice->getProfile();
if (!$profile) {
common_log_db_error($notice, 'SELECT', __FILE__);
$this->server_error(_('Notice without matching profile'));
return;
}
# XXX: RDFa
common_element_start('li', array('class' => 'notice_single',
'id' => 'notice-' . $notice->id));
$avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
common_element_start('a', array('href' => $profile->profileurl));
common_element('img', array('src' => ($avatar) ? common_avatar_display_url($avatar) : common_default_avatar(AVATAR_STREAM_SIZE),
'class' => 'avatar stream',
'width' => AVATAR_STREAM_SIZE,
'height' => AVATAR_STREAM_SIZE,
'alt' =>
($profile->fullname) ? $profile->fullname :
$profile->nickname));
common_element_end('a');
common_element('a', array('href' => $profile->profileurl,
'class' => 'nickname'),
$profile->nickname);
# FIXME: URL, image, video, audio
common_element_start('p', array('class' => 'content'));
if ($notice->rendered) {
common_raw($this->highlight($notice->rendered, $terms));
} else {
# XXX: may be some uncooked notices in the DB,
# we cook them right now. This should probably disappear in future
# versions (>> 0.4.x)
common_raw($this->highlight(common_render_content($notice->content, $notice), $terms));
}
common_element_end('p');
$noticeurl = common_local_url('shownotice', array('notice' => $notice->id));
common_element_start('p', 'time');
common_element('a', array('class' => 'permalink',
'href' => $noticeurl,
'title' => common_exact_date($notice->created)),
common_date_string($notice->created));
if ($notice->reply_to) {
$replyurl = common_local_url('shownotice', array('notice' => $notice->reply_to));
common_text(' (');
common_element('a', array('class' => 'inreplyto',
'href' => $replyurl),
_('in reply to...'));
common_text(')');
}
common_element_start('a',
array('href' => common_local_url('newnotice',
array('replyto' => $profile->nickname)),
'onclick' => 'doreply("'.$profile->nickname.'"); return false',
'title' => _('reply'),
'class' => 'replybutton'));
common_raw('&rarr;');
common_element_end('a');
common_element_end('p');
common_element_end('li');
}
function highlight($text, $terms) {
/* Highligh serach 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;
}
}