mod/search.php

   1 <?php
   2 /**
   3  * @file mod/search.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Content\Nav;
   8 use Friendica\Content\Pager;
   9 use Friendica\Content\Text\HTML;
  10 use Friendica\Core\Cache;
  11 use Friendica\Core\Config;
  12 use Friendica\Core\L10n;
  13 use Friendica\Core\Logger;
  14 use Friendica\Core\Renderer;
  15 use Friendica\Database\DBA;
  16 use Friendica\Model\Item;
  17 use Friendica\Module\BaseSearchModule;
  18 use Friendica\Util\Strings;
  19
  20 function search_saved_searches() {
  21         $o = '';
  22         $search = (!empty($_GET['search']) ? Strings::escapeTags(trim(rawurldecode($_GET['search']))) : '');
  23
  24         $r = q("SELECT `id`,`term` FROM `search` WHERE `uid` = %d",
  25                 intval(local_user())
  26         );
  27
  28         if (DBA::isResult($r)) {
  29                 $saved = [];
  30                 foreach ($r as $rr) {
  31                         $saved[] = [
  32                                 'id'            => $rr['id'],
  33                                 'term'          => $rr['term'],
  34                                 'encodedterm'   => urlencode($rr['term']),
  35                                 'delete'        => L10n::t('Remove term'),
  36                                 'selected'      => ($search==$rr['term']),
  37                         ];
  38                 }
  39
  40
  41                 $tpl = Renderer::getMarkupTemplate("saved_searches_aside.tpl");
  42
  43                 $o .= Renderer::replaceMacros($tpl, [
  44                         '$title'        => L10n::t('Saved Searches'),
  45                         '$add'          => '',
  46                         '$searchbox'    => '',
  47                         '$saved'        => $saved,
  48                 ]);
  49         }
  50
  51         return $o;
  52 }
  53
  54
  55 function search_init(App $a) {
  56         $search = (!empty($_GET['search']) ? Strings::escapeTags(trim(rawurldecode($_GET['search']))) : '');
  57
  58         if (local_user()) {
  59                 if (!empty($_GET['save']) && $search) {
  60                         $r = q("SELECT * FROM `search` WHERE `uid` = %d AND `term` = '%s' LIMIT 1",
  61                                 intval(local_user()),
  62                                 DBA::escape($search)
  63                         );
  64                         if (!DBA::isResult($r)) {
  65                                 DBA::insert('search', ['uid' => local_user(), 'term' => $search]);
  66                         }
  67                 }
  68                 if (!empty($_GET['remove']) && $search) {
  69                         DBA::delete('search', ['uid' => local_user(), 'term' => $search]);
  70                 }
  71
  72                 /// @todo Check if there is a case at all that "aside" is prefilled here
  73                 if (!isset($a->page['aside'])) {
  74                         $a->page['aside'] = '';
  75                 }
  76
  77                 $a->page['aside'] .= search_saved_searches();
  78
  79         } else {
  80                 unset($_SESSION['theme']);
  81                 unset($_SESSION['mobile-theme']);
  82         }
  83 }
  84
  85 function search_content(App $a) {
  86         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
  87                 notice(L10n::t('Public access denied.') . EOL);
  88                 return;
  89         }
  90
  91         if (Config::get('system','local_search') && !local_user() && !remote_user()) {
  92                 $e = new \Friendica\Network\HTTPException\ForbiddenException(L10n::t("Only logged in users are permitted to perform a search."));
  93                 $e->httpdesc = L10n::t("Public access denied.");
  94                 throw $e;
  95         }
  96
  97         if (Config::get('system','permit_crawling') && !local_user() && !remote_user()) {
  98                 // Default values:
  99                 // 10 requests are "free", after the 11th only a call per minute is allowed
 100
 101                 $free_crawls = intval(Config::get('system','free_crawls'));
 102                 if ($free_crawls == 0)
 103                         $free_crawls = 10;
 104
 105                 $crawl_permit_period = intval(Config::get('system','crawl_permit_period'));
 106                 if ($crawl_permit_period == 0)
 107                         $crawl_permit_period = 10;
 108
 109                 $remote = $_SERVER["REMOTE_ADDR"];
 110                 $result = Cache::get("remote_search:".$remote);
 111                 if (!is_null($result)) {
 112                         $resultdata = json_decode($result);
 113                         if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
 114                                 throw new \Friendica\Network\HTTPException\TooManyRequestsException(L10n::t("Only one search per minute is permitted for not logged in users."));
 115                         }
 116                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => $resultdata->accesses + 1]), Cache::HOUR);
 117                 } else
 118                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => 1]), Cache::HOUR);
 119         }
 120
 121         Nav::setSelected('search');
 122
 123         $search = (!empty($_REQUEST['search']) ? Strings::escapeTags(trim(rawurldecode($_REQUEST['search']))) : '');
 124
 125         $tag = false;
 126         if (!empty($_GET['tag'])) {
 127                 $tag = true;
 128                 $search = (!empty($_GET['tag']) ? '#' . Strings::escapeTags(trim(rawurldecode($_GET['tag']))) : '');
 129         }
 130
 131         // contruct a wrapper for the search header
 132         $o = Renderer::replaceMacros(Renderer::getMarkupTemplate("content_wrapper.tpl"),[
 133                 'name' => "search-header",
 134                 '$title' => L10n::t("Search"),
 135                 '$title_size' => 3,
 136                 '$content' => HTML::search($search,'search-box','search', false)
 137         ]);
 138
 139         if (strpos($search,'#') === 0) {
 140                 $tag = true;
 141                 $search = substr($search,1);
 142         }
 143         if (strpos($search,'@') === 0) {
 144                 return BaseSearchModule::performSearch();
 145         }
 146         if (strpos($search,'!') === 0) {
 147                 return BaseSearchModule::performSearch();
 148         }
 149
 150         if (parse_url($search, PHP_URL_SCHEME) != '') {
 151                 $id = Item::fetchByLink($search);
 152                 if (!empty($id)) {
 153                         $item = Item::selectFirst(['guid'], ['id' => $id]);
 154                         if (DBA::isResult($item)) {
 155                                 $a->internalRedirect('display/' . $item['guid']);
 156                         }
 157                 }
 158         }
 159
 160         if (!empty($_GET['search-option']))
 161                 switch($_GET['search-option']) {
 162                         case 'fulltext':
 163                                 break;
 164                         case 'tags':
 165                                 $tag = true;
 166                                 break;
 167                         case 'contacts':
 168                                 return BaseSearchModule::performSearch('@');
 169                         case 'forums':
 170                                 return BaseSearchModule::performSearch('!');
 171                 }
 172
 173         if (!$search)
 174                 return $o;
 175
 176         if (Config::get('system','only_tag_search'))
 177                 $tag = true;
 178
 179         // Here is the way permissions work in the search module...
 180         // Only public posts can be shown
 181         // OR your own posts if you are a logged in member
 182         // No items will be shown if the member has a blocked profile wall.
 183
 184         $pager = new Pager($a->query_string);
 185
 186         if ($tag) {
 187                 Logger::log("Start tag search for '".$search."'", Logger::DEBUG);
 188
 189                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 190                         AND `otype` = ? AND `type` = ? AND `term` = ?",
 191                         local_user(), TERM_OBJ_POST, TERM_HASHTAG, $search];
 192                 $params = ['order' => ['received' => true],
 193                         'limit' => [$pager->getStart(), $pager->getItemsPerPage()]];
 194                 $terms = DBA::select('term', ['oid'], $condition, $params);
 195
 196                 $itemids = [];
 197                 while ($term = DBA::fetch($terms)) {
 198                         $itemids[] = $term['oid'];
 199                 }
 200                 DBA::close($terms);
 201
 202                 if (!empty($itemids)) {
 203                         $params = ['order' => ['id' => true]];
 204                         $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 205                         $r = Item::inArray($items);
 206                 } else {
 207                         $r = [];
 208                 }
 209         } else {
 210                 Logger::log("Start fulltext search for '".$search."'", Logger::DEBUG);
 211
 212                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 213                         AND `body` LIKE CONCAT('%',?,'%')",
 214                         local_user(), $search];
 215                 $params = ['order' => ['id' => true],
 216                         'limit' => [$pager->getStart(), $pager->getItemsPerPage()]];
 217                 $items = Item::selectForUser(local_user(), [], $condition, $params);
 218                 $r = Item::inArray($items);
 219         }
 220
 221         if (!DBA::isResult($r)) {
 222                 info(L10n::t('No results.') . EOL);
 223                 return $o;
 224         }
 225
 226
 227         if ($tag) {
 228                 $title = L10n::t('Items tagged with: %s', $search);
 229         } else {
 230                 $title = L10n::t('Results for: %s', $search);
 231         }
 232
 233         $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate("section_title.tpl"),[
 234                 '$title' => $title
 235         ]);
 236
 237         Logger::log("Start Conversation for '".$search."'", Logger::DEBUG);
 238         $o .= conversation($a, $r, $pager, 'search', false, false, 'commented', local_user());
 239
 240         $o .= $pager->renderMinimal(count($r));
 241
 242         Logger::log("Done '".$search."'", Logger::DEBUG);
 243
 244         return $o;
 245 }