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
  24 # XXX common parent for people and content search?
  25
  26 class NoticesearchAction extends SearchAction {
  27
  28         function get_instructions() {
  29                 return _('Search for notices on %%site.name%% by their contents. Separate search terms by spaces; they must be 3 characters or more.');
  30         }
  31
  32         function get_title() {
  33                 return _('Text search');
  34         }
  35
  36         function show_results($q, $page) {
  37
  38                 $notice = new Notice();
  39
  40                 # lcase it for comparison
  41                 $q = strtolower($q);
  42
  43         $search_engine = $notice->getSearchEngine('identica_notices');
  44
  45         $search_engine->set_sort_mode('chron');
  46                 # Ask for an extra to see if there's more.
  47                 $search_engine->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
  48
  49         if (false === $search_engine->query($q)) {
  50             $cnt = 0;
  51         }
  52         else {
  53                 $cnt = $notice->find();
  54         }
  55                 if ($cnt > 0) {
  56                         $terms = preg_split('/[\s,]+/', $q);
  57                         common_element_start('ul', array('id' => 'notices'));
  58                         for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
  59                                 if ($notice->fetch()) {
  60                                         $this->show_notice($notice, $terms);
  61                                 } else {
  62                                         // shouldn't happen!
  63                                         break;
  64                                 }
  65                         }
  66                         common_element_end('ul');
  67                 } else {
  68                         common_element('p', 'error', _('No results'));
  69                 }
  70
  71                 common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
  72                                                   $page, 'noticesearch', array('q' => $q));
  73         }
  74
  75         function show_header($arr) {
  76                 if ($arr) {
  77                         $q = $arr[0];
  78                 }
  79                 if ($q) {
  80                         common_element('link', array('rel' => 'alternate',
  81                                                                                  'href' => common_local_url('noticesearchrss',
  82                                                                                                                                         array('q' => $q)),
  83                                                                                  'type' => 'application/rss+xml',
  84                                                                                  'title' => _('Search Stream Feed')));
  85                 }
  86         }
  87
  88         # XXX: refactor and combine with StreamAction::show_notice()
  89
  90         function show_notice($notice, $terms) {
  91                 $profile = $notice->getProfile();
  92                 if (!$profile) {
  93                         common_log_db_error($notice, 'SELECT', __FILE__);
  94                         $this->server_error(_('Notice without matching profile'));
  95                         return;
  96                 }
  97                 # XXX: RDFa
  98                 common_element_start('li', array('class' => 'notice_single',
  99                                                                                   'id' => 'notice-' . $notice->id));
 100                 $avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
 101                 common_element_start('a', array('href' => $profile->profileurl));
 102                 common_element('img', array('src' => ($avatar) ? common_avatar_display_url($avatar) : common_default_avatar(AVATAR_STREAM_SIZE),
 103                                                                         'class' => 'avatar stream',
 104                                                                         'width' => AVATAR_STREAM_SIZE,
 105                                                                         'height' => AVATAR_STREAM_SIZE,
 106                                                                         'alt' =>
 107                                                                         ($profile->fullname) ? $profile->fullname :
 108                                                                         $profile->nickname));
 109                 common_element_end('a');
 110                 common_element('a', array('href' => $profile->profileurl,
 111                                                                   'class' => 'nickname'),
 112                                            $profile->nickname);
 113                 # FIXME: URL, image, video, audio
 114                 common_element_start('p', array('class' => 'content'));
 115                 if ($notice->rendered) {
 116                         common_raw($this->highlight($notice->rendered, $terms));
 117                 } else {
 118                         # XXX: may be some uncooked notices in the DB,
 119                         # we cook them right now. This should probably disappear in future
 120                         # versions (>> 0.4.x)
 121                         common_raw($this->highlight(common_render_content($notice->content, $notice), $terms));
 122                 }
 123                 common_element_end('p');
 124                 $noticeurl = common_local_url('shownotice', array('notice' => $notice->id));
 125                 common_element_start('p', 'time');
 126                 common_element('a', array('class' => 'permalink',
 127                                                                   'href' => $noticeurl,
 128                                                                   'title' => common_exact_date($notice->created)),
 129                                            common_date_string($notice->created));
 130                 if ($notice->reply_to) {
 131                         $replyurl = common_local_url('shownotice', array('notice' => $notice->reply_to));
 132                         common_text(' (');
 133                         common_element('a', array('class' => 'inreplyto',
 134                                                                           'href' => $replyurl),
 135                                                    _('in reply to...'));
 136                         common_text(')');
 137                 }
 138                 common_element_start('a',
 139                                                          array('href' => common_local_url('newnotice',
 140                                                                                                                           array('replyto' => $profile->nickname)),
 141                                                                    'onclick' => 'doreply("'.$profile->nickname.'"); return false',
 142                                                                    'title' => _('reply'),
 143                                                                    'class' => 'replybutton'));
 144                 common_hidden('posttoken', common_session_token());
 145
 146                 common_raw('&rarr;');
 147                 common_element_end('a');
 148                 common_element_end('p');
 149                 common_element_end('li');
 150         }
 151
 152         function highlight($text, $terms) {
 153                 /* Highligh serach terms */
 154                 $pattern = '/('.implode('|',array_map('htmlspecialchars', $terms)).')/i';
 155                 $result = preg_replace($pattern, '<strong>\\1</strong>', $text);
 156
 157                 /* Remove highlighting from inside links, loop incase multiple highlights in links */
 158                 $pattern = '/(href="[^"]*)<strong>('.implode('|',array_map('htmlspecialchars', $terms)).')<\/strong>([^"]*")/iU';
 159                 do {
 160                         $result = preg_replace($pattern, '\\1\\2\\3', $result, -1, $count);
 161                 } while ($count);
 162                 return $result;
 163         }
 164 }