src/Module/Search/Index.php

   1 <?php
   2
   3 namespace Friendica\Module\Search;
   4
   5 use Friendica\Content\Nav;
   6 use Friendica\Content\Pager;
   7 use Friendica\Content\Text\HTML;
   8 use Friendica\Content\Widget;
   9 use Friendica\Core\Cache;
  10 use Friendica\Core\Cache\Cache as CacheClass;
  11 use Friendica\Core\Config;
  12 use Friendica\Core\L10n;
  13 use Friendica\Core\Logger;
  14 use Friendica\Core\Renderer;
  15 use Friendica\Core\Session;
  16 use Friendica\Database\DBA;
  17 use Friendica\Model\Item;
  18 use Friendica\Model\Term;
  19 use Friendica\Module\BaseSearchModule;
  20 use Friendica\Network\HTTPException;
  21 use Friendica\Util\Strings;
  22
  23 class Index extends BaseSearchModule
  24 {
  25         public static function content()
  26         {
  27                 $search = (!empty($_GET['q']) ? Strings::escapeTags(trim(rawurldecode($_GET['q']))) : '');
  28
  29                 if (Config::get('system', 'block_public') && !Session::isAuthenticated()) {
  30                         throw new HTTPException\ForbiddenException(L10n::t('Public access denied.'));
  31                 }
  32
  33                 if (Config::get('system', 'local_search') && !Session::isAuthenticated()) {
  34                         $e = new HTTPException\ForbiddenException(L10n::t('Only logged in users are permitted to perform a search.'));
  35                         $e->httpdesc = L10n::t('Public access denied.');
  36                         throw $e;
  37                 }
  38
  39                 if (Config::get('system', 'permit_crawling') && !Session::isAuthenticated()) {
  40                         // Default values:
  41                         // 10 requests are "free", after the 11th only a call per minute is allowed
  42
  43                         $free_crawls = intval(Config::get('system', 'free_crawls'));
  44                         if ($free_crawls == 0)
  45                                 $free_crawls = 10;
  46
  47                         $crawl_permit_period = intval(Config::get('system', 'crawl_permit_period'));
  48                         if ($crawl_permit_period == 0)
  49                                 $crawl_permit_period = 10;
  50
  51                         $remote = $_SERVER['REMOTE_ADDR'];
  52                         $result = Cache::get('remote_search:' . $remote);
  53                         if (!is_null($result)) {
  54                                 $resultdata = json_decode($result);
  55                                 if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
  56                                         throw new HTTPException\TooManyRequestsException(L10n::t('Only one search per minute is permitted for not logged in users.'));
  57                                 }
  58                                 Cache::set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => $resultdata->accesses + 1]), CacheClass::HOUR);
  59                         } else {
  60                                 Cache::set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => 1]), CacheClass::HOUR);
  61                         }
  62                 }
  63
  64                 if (local_user()) {
  65                         self::getApp()->page['aside'] .= Widget\SavedSearches::getHTML('search?q=' . $search, $search);
  66                 }
  67
  68                 Nav::setSelected('search');
  69
  70                 $tag = false;
  71                 if (!empty($_GET['tag'])) {
  72                         $tag = true;
  73                         $search = '#' . Strings::escapeTags(trim(rawurldecode($_GET['tag'])));
  74                 }
  75
  76                 // contruct a wrapper for the search header
  77                 $o = Renderer::replaceMacros(Renderer::getMarkupTemplate('content_wrapper.tpl'), [
  78                         'name' => 'search-header',
  79                         '$title' => L10n::t('Search'),
  80                         '$title_size' => 3,
  81                         '$content' => HTML::search($search, 'search-box', false)
  82                 ]);
  83
  84                 if (strpos($search, '#') === 0) {
  85                         $tag = true;
  86                         $search = substr($search, 1);
  87                 }
  88
  89                 if (strpos($search, '@') === 0 || strpos($search, '!') === 0) {
  90                         return self::performSearch($search);
  91                 }
  92
  93                 if (parse_url($search, PHP_URL_SCHEME) != '') {
  94                         $id = Item::fetchByLink($search);
  95                         if (!empty($id)) {
  96                                 $item = Item::selectFirst(['guid'], ['id' => $id]);
  97                                 if (DBA::isResult($item)) {
  98                                         self::getApp()->internalRedirect('display/' . $item['guid']);
  99                                 }
 100                         }
 101                 }
 102
 103                 if (!empty($_GET['search-option'])) {
 104                         switch ($_GET['search-option']) {
 105                                 case 'fulltext':
 106                                         break;
 107                                 case 'tags':
 108                                         $tag = true;
 109                                         break;
 110                                 case 'contacts':
 111                                         return self::performSearch($search, '@');
 112                                 case 'forums':
 113                                         return self::performSearch($search, '!');
 114                         }
 115                 }
 116
 117                 if (!$search) {
 118                         return $o;
 119                 }
 120
 121                 $tag = $tag || Config::get('system', 'only_tag_search');
 122
 123                 // Here is the way permissions work in the search module...
 124                 // Only public posts can be shown
 125                 // OR your own posts if you are a logged in member
 126                 // No items will be shown if the member has a blocked profile wall.
 127
 128                 $pager = new Pager(self::getArgs()->getQueryString());
 129
 130                 if ($tag) {
 131                         Logger::info('Start tag search for "' . $search . '"');
 132
 133                         $condition = [
 134                                 "(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 135                                 AND `otype` = ? AND `type` = ? AND `term` = ?",
 136                                 local_user(), Term::OBJECT_TYPE_POST, Term::HASHTAG, $search
 137                         ];
 138                         $params = [
 139                                 'order' => ['received' => true],
 140                                 'limit' => [$pager->getStart(), $pager->getItemsPerPage()]
 141                         ];
 142                         $terms = DBA::select('term', ['oid'], $condition, $params);
 143
 144                         $itemids = [];
 145                         while ($term = DBA::fetch($terms)) {
 146                                 $itemids[] = $term['oid'];
 147                         }
 148
 149                         DBA::close($terms);
 150
 151                         if (!empty($itemids)) {
 152                                 $params = ['order' => ['id' => true]];
 153                                 $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 154                                 $r = Item::inArray($items);
 155                         } else {
 156                                 $r = [];
 157                         }
 158                 } else {
 159                         Logger::info('Start fulltext search for "' . $search . '"');
 160
 161                         $condition = [
 162                                 "(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 163                                 AND `body` LIKE CONCAT('%',?,'%')",
 164                                 local_user(), $search
 165                         ];
 166                         $params = [
 167                                 'order' => ['id' => true],
 168                                 'limit' => [$pager->getStart(), $pager->getItemsPerPage()]
 169                         ];
 170                         $items = Item::selectForUser(local_user(), [], $condition, $params);
 171                         $r = Item::inArray($items);
 172                 }
 173
 174                 if (!DBA::isResult($r)) {
 175                         info(L10n::t('No results.'));
 176                         return $o;
 177                 }
 178
 179                 if ($tag) {
 180                         $title = L10n::t('Items tagged with: %s', $search);
 181                 } else {
 182                         $title = L10n::t('Results for: %s', $search);
 183                 }
 184
 185                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'), [
 186                         '$title' => $title
 187                 ]);
 188
 189                 Logger::info('Start Conversation for "' . $search . '"');
 190                 $o .= conversation(self::getApp(), $r, $pager, 'search', false, false, 'commented', local_user());
 191
 192                 $o .= $pager->renderMinimal(count($r));
 193
 194                 Logger::info('Done "'.$search.'"');
 195
 196                 return $o;
 197         }
 198 }