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