actions/noticesearch.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 require_once(INSTALLDIR.'/lib/searchaction.php');
  23 define('NOTICES_PER_PAGE', 20);
  24
  25 # XXX common parent for people and content search?
  26
  27 class NoticesearchAction extends SearchAction {
  28
  29         function get_instructions() {
  30                 return _('Search for notices on %%site.name%% by their contents. Separate search terms by spaces; they must be 3 characters or more.');
  31         }
  32
  33         function get_title() {
  34                 return _('Text search');
  35         }
  36
  37         function show_results($q, $page) {
  38
  39                 $notice = new Notice();
  40
  41                 # lcase it for comparison
  42                 $q = strtolower($q);
  43
  44                 if(common_config('db','type')=='mysql') {
  45                         $notice->whereAdd('MATCH(content) against (\''.addslashes($q).'\')');
  46                 } else {
  47                         $notice->whereAdd('to_tsvector(\'english\', content) @@ plainto_tsquery(\''.addslashes($q).'\')');
  48                 }
  49
  50                 # Ask for an extra to see if there's more.
  51
  52                 $notice->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
  53
  54                 $cnt = $notice->find();
  55
  56                 if ($cnt > 0) {
  57                         $terms = preg_split('/[\s,]+/', $q);
  58                         common_element_start('ul', array('id' => 'notices'));
  59                         for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
  60                                 if ($notice->fetch()) {
  61                                         $this->show_notice($notice, $terms);
  62                                 } else {
  63                                         // shouldn't happen!
  64                                         break;
  65                                 }
  66                         }
  67                         common_element_end('ul');
  68                 } else {
  69                         common_element('p', 'error', _('No results'));
  70                 }
  71
  72                 common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
  73                                                   $page, 'noticesearch', array('q' => $q));
  74         }
  75
  76         function show_header($arr) {
  77                 if ($arr) {
  78                         $q = $arr[0];
  79                 }
  80                 if ($q) {
  81                         common_element('link', array('rel' => 'alternate',
  82                                                                                  'href' => common_local_url('noticesearchrss',
  83                                                                                                                                         array('q' => $q)),
  84                                                                                  'type' => 'application/rss+xml',
  85                                                                                  'title' => _('Search Stream Feed')));
  86                 }
  87         }
  88
  89         # XXX: refactor and combine with StreamAction::show_notice()
  90
  91         function show_notice($notice, $terms) {
  92                 $profile = $notice->getProfile();
  93                 if (!$profile) {
  94                         common_log_db_error($notice, 'SELECT', __FILE__);
  95                         $this->server_error(_('Notice without matching profile'));
  96                         return;
  97                 }
  98                 # XXX: RDFa
  99                 common_element_start('li', array('class' => 'notice_single',
 100                                                                                   'id' => 'notice-' . $notice->id));
 101                 $avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
 102                 common_element_start('a', array('href' => $profile->profileurl));
 103                 common_element('img', array('src' => ($avatar) ? common_avatar_display_url($avatar) : common_default_avatar(AVATAR_STREAM_SIZE),
 104                                                                         'class' => 'avatar stream',
 105                                                                         'width' => AVATAR_STREAM_SIZE,
 106                                                                         'height' => AVATAR_STREAM_SIZE,
 107                                                                         'alt' =>
 108                                                                         ($profile->fullname) ? $profile->fullname :
 109                                                                         $profile->nickname));
 110                 common_element_end('a');
 111                 common_element('a', array('href' => $profile->profileurl,
 112                                                                   'class' => 'nickname'),
 113                                            $profile->nickname);
 114                 # FIXME: URL, image, video, audio
 115                 common_element_start('p', array('class' => 'content'));
 116                 if ($notice->rendered) {
 117                         common_raw($this->highlight($notice->rendered, $terms));
 118                 } else {
 119                         # XXX: may be some uncooked notices in the DB,
 120                         # we cook them right now. This should probably disappear in future
 121                         # versions (>> 0.4.x)
 122                         common_raw($this->highlight(common_render_content($notice->content, $notice), $terms));
 123                 }
 124                 common_element_end('p');
 125                 $noticeurl = common_local_url('shownotice', array('notice' => $notice->id));
 126                 common_element_start('p', 'time');
 127                 common_element('a', array('class' => 'permalink',
 128                                                                   'href' => $noticeurl,
 129                                                                   'title' => common_exact_date($notice->created)),
 130                                            common_date_string($notice->created));
 131                 if ($notice->reply_to) {
 132                         $replyurl = common_local_url('shownotice', array('notice' => $notice->reply_to));
 133                         common_text(' (');
 134                         common_element('a', array('class' => 'inreplyto',
 135                                                                           'href' => $replyurl),
 136                                                    _('in reply to...'));
 137                         common_text(')');
 138                 }
 139                 common_element_start('a',
 140                                                          array('href' => common_local_url('newnotice',
 141                                                                                                                           array('replyto' => $profile->nickname)),
 142                                                                    'onclick' => 'doreply("'.$profile->nickname.'"); return false',
 143                                                                    'title' => _('reply'),
 144                                                                    'class' => 'replybutton'));
 145                 common_hidden('posttoken', common_session_token());
 146
 147                 common_raw('&rarr;');
 148                 common_element_end('a');
 149                 common_element_end('p');
 150                 common_element_end('li');
 151         }
 152
 153         function highlight($text, $terms) {
 154                 /* Highligh serach terms */
 155                 $pattern = '/('.implode('|',array_map('htmlspecialchars', $terms)).')/i';
 156                 $result = preg_replace($pattern, '<strong>\\1</strong>', $text);
 157
 158                 /* Remove highlighting from inside links, loop incase multiple highlights in links */
 159                 $pattern = '/(href="[^"]*)<strong>('.implode('|',array_map('htmlspecialchars', $terms)).')<\/strong>([^"]*")/iU';
 160                 do {
 161                         $result = preg_replace($pattern, '\\1\\2\\3', $result, -1, $count);
 162                 } while ($count);
 163                 return $result;
 164         }
 165 }