src/Module/Search/Index.php

   1 <?php
   2
   3 namespace Friendica\Module\Search;
   4
   5 use Friendica\App\Arguments;
   6 use Friendica\Content\Nav;
   7 use Friendica\Content\Pager;
   8 use Friendica\Content\Text\HTML;
   9 use Friendica\Content\Widget;
  10 use Friendica\Core\Cache;
  11 use Friendica\Core\Cache\Cache as CacheClass;
  12 use Friendica\Core\Config;
  13 use Friendica\Core\L10n;
  14 use Friendica\Core\Logger;
  15 use Friendica\Core\Renderer;
  16 use Friendica\Core\Session;
  17 use Friendica\Database\DBA;
  18 use Friendica\Model\Item;
  19 use Friendica\Model\Term;
  20 use Friendica\Module\BaseSearchModule;
  21 use Friendica\Network\HTTPException;
  22 use Friendica\Util\Strings;
  23
  24 class Index extends BaseSearchModule
  25 {
  26         public static function content(array $parameters = [])
  27         {
  28                 $search = (!empty($_GET['q']) ? Strings::escapeTags(trim(rawurldecode($_GET['q']))) : '');
  29
  30                 if (Config::get('system', 'block_public') && !Session::isAuthenticated()) {
  31                         throw new HTTPException\ForbiddenException(L10n::t('Public access denied.'));
  32                 }
  33
  34                 if (Config::get('system', 'local_search') && !Session::isAuthenticated()) {
  35                         $e = new HTTPException\ForbiddenException(L10n::t('Only logged in users are permitted to perform a search.'));
  36                         $e->httpdesc = L10n::t('Public access denied.');
  37                         throw $e;
  38                 }
  39
  40                 if (Config::get('system', 'permit_crawling') && !Session::isAuthenticated()) {
  41                         // Default values:
  42                         // 10 requests are "free", after the 11th only a call per minute is allowed
  43
  44                         $free_crawls = intval(Config::get('system', 'free_crawls'));
  45                         if ($free_crawls == 0)
  46                                 $free_crawls = 10;
  47
  48                         $crawl_permit_period = intval(Config::get('system', 'crawl_permit_period'));
  49                         if ($crawl_permit_period == 0)
  50                                 $crawl_permit_period = 10;
  51
  52                         $remote = $_SERVER['REMOTE_ADDR'];
  53                         $result = Cache::get('remote_search:' . $remote);
  54                         if (!is_null($result)) {
  55                                 $resultdata = json_decode($result);
  56                                 if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
  57                                         throw new HTTPException\TooManyRequestsException(L10n::t('Only one search per minute is permitted for not logged in users.'));
  58                                 }
  59                                 Cache::set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => $resultdata->accesses + 1]), CacheClass::HOUR);
  60                         } else {
  61                                 Cache::set('remote_search:' . $remote, json_encode(['time' => time(), 'accesses' => 1]), CacheClass::HOUR);
  62                         }
  63                 }
  64
  65                 if (local_user()) {
  66                         self::getApp()->page['aside'] .= Widget\SavedSearches::getHTML('search?q=' . urlencode($search), $search);
  67                 }
  68
  69                 Nav::setSelected('search');
  70
  71                 $tag = false;
  72                 if (!empty($_GET['tag'])) {
  73                         $tag = true;
  74                         $search = '#' . Strings::escapeTags(trim(rawurldecode($_GET['tag'])));
  75                 }
  76
  77                 // contruct a wrapper for the search header
  78                 $o = Renderer::replaceMacros(Renderer::getMarkupTemplate('content_wrapper.tpl'), [
  79                         'name' => 'search-header',
  80                         '$title' => L10n::t('Search'),
  81                         '$title_size' => 3,
  82                         '$content' => HTML::search($search, 'search-box', false)
  83                 ]);
  84
  85                 if (strpos($search, '#') === 0) {
  86                         $tag = true;
  87                         $search = substr($search, 1);
  88                 }
  89
  90                 if (strpos($search, '@') === 0 || strpos($search, '!') === 0) {
  91                         return self::performSearch($search);
  92                 }
  93
  94                 if (parse_url($search, PHP_URL_SCHEME) != '') {
  95                         $id = Item::fetchByLink($search);
  96                         if (!empty($id)) {
  97                                 $item = Item::selectFirst(['guid'], ['id' => $id]);
  98                                 if (DBA::isResult($item)) {
  99                                         self::getApp()->internalRedirect('display/' . $item['guid']);
 100                                 }
 101                         }
 102                 }
 103
 104                 if (!empty($_GET['search-option'])) {
 105                         switch ($_GET['search-option']) {
 106                                 case 'fulltext':
 107                                         break;
 108                                 case 'tags':
 109                                         $tag = true;
 110                                         break;
 111                                 case 'contacts':
 112                                         return self::performSearch($search, '@');
 113                                 case 'forums':
 114                                         return self::performSearch($search, '!');
 115                         }
 116                 }
 117
 118                 if (!$search) {
 119                         return $o;
 120                 }
 121
 122                 $tag = $tag || Config::get('system', 'only_tag_search');
 123
 124                 // Here is the way permissions work in the search module...
 125                 // Only public posts can be shown
 126                 // OR your own posts if you are a logged in member
 127                 // No items will be shown if the member has a blocked profile wall.
 128
 129                 /** @var Arguments $args */
 130                 $args = self::getClass(Arguments::class);
 131                 $pager = new Pager($args->getQueryString());
 132
 133                 if ($tag) {
 134                         Logger::info('Start tag search.', ['q' => $search]);
 135
 136                         $condition = [
 137                                 "(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 138                                 AND `otype` = ? AND `type` = ? AND `term` = ?",
 139                                 local_user(), Term::OBJECT_TYPE_POST, Term::HASHTAG, $search
 140                         ];
 141                         $params = [
 142                                 'order' => ['received' => true],
 143                                 'limit' => [$pager->getStart(), $pager->getItemsPerPage()]
 144                         ];
 145                         $terms = DBA::select('term', ['oid'], $condition, $params);
 146
 147                         $itemids = [];
 148                         while ($term = DBA::fetch($terms)) {
 149                                 $itemids[] = $term['oid'];
 150                         }
 151
 152                         DBA::close($terms);
 153
 154                         if (!empty($itemids)) {
 155                                 $params = ['order' => ['id' => true]];
 156                                 $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 157                                 $r = Item::inArray($items);
 158                         } else {
 159                                 $r = [];
 160                         }
 161                 } else {
 162                         Logger::info('Start fulltext search.', ['q' => $search]);
 163
 164                         $condition = [
 165                                 "(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 166                                 AND `body` LIKE CONCAT('%',?,'%')",
 167                                 local_user(), $search
 168                         ];
 169                         $params = [
 170                                 'order' => ['id' => true],
 171                                 'limit' => [$pager->getStart(), $pager->getItemsPerPage()]
 172                         ];
 173                         $items = Item::selectForUser(local_user(), [], $condition, $params);
 174                         $r = Item::inArray($items);
 175                 }
 176
 177                 if (!DBA::isResult($r)) {
 178                         info(L10n::t('No results.'));
 179                         return $o;
 180                 }
 181
 182                 if ($tag) {
 183                         $title = L10n::t('Items tagged with: %s', $search);
 184                 } else {
 185                         $title = L10n::t('Results for: %s', $search);
 186                 }
 187
 188                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'), [
 189                         '$title' => $title
 190                 ]);
 191
 192                 Logger::info('Start Conversation.', ['q' => $search]);
 193
 194                 $o .= conversation(self::getApp(), $r, $pager, 'search', false, false, 'commented', local_user());
 195
 196                 $o .= $pager->renderMinimal(count($r));
 197
 198                 return $o;
 199         }
 200 }