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_saved_searches() {
  22         $o = '';
  23         $search = (!empty($_GET['search']) ? Strings::escapeTags(trim(rawurldecode($_GET['search']))) : '');
  24
  25         $r = q("SELECT `id`,`term` FROM `search` WHERE `uid` = %d",
  26                 intval(local_user())
  27         );
  28
  29         if (DBA::isResult($r)) {
  30                 $saved = [];
  31                 foreach ($r as $rr) {
  32                         $saved[] = [
  33                                 'id'            => $rr['id'],
  34                                 'term'          => $rr['term'],
  35                                 'encodedterm'   => urlencode($rr['term']),
  36                                 'delete'        => L10n::t('Remove term'),
  37                                 'selected'      => ($search==$rr['term']),
  38                         ];
  39                 }
  40
  41
  42                 $tpl = Renderer::getMarkupTemplate("saved_searches_aside.tpl");
  43
  44                 $o .= Renderer::replaceMacros($tpl, [
  45                         '$title'        => L10n::t('Saved Searches'),
  46                         '$add'          => '',
  47                         '$searchbox'    => '',
  48                         '$saved'        => $saved,
  49                 ]);
  50         }
  51
  52         return $o;
  53 }
  54
  55
  56 function search_init(App $a) {
  57         $search = (!empty($_GET['search']) ? Strings::escapeTags(trim(rawurldecode($_GET['search']))) : '');
  58
  59         if (local_user()) {
  60                 if (!empty($_GET['save']) && $search) {
  61                         $r = q("SELECT * FROM `search` WHERE `uid` = %d AND `term` = '%s' LIMIT 1",
  62                                 intval(local_user()),
  63                                 DBA::escape($search)
  64                         );
  65                         if (!DBA::isResult($r)) {
  66                                 DBA::insert('search', ['uid' => local_user(), 'term' => $search]);
  67                         }
  68                 }
  69                 if (!empty($_GET['remove']) && $search) {
  70                         DBA::delete('search', ['uid' => local_user(), 'term' => $search]);
  71                 }
  72
  73                 /// @todo Check if there is a case at all that "aside" is prefilled here
  74                 if (!isset($a->page['aside'])) {
  75                         $a->page['aside'] = '';
  76                 }
  77
  78                 $a->page['aside'] .= search_saved_searches();
  79
  80         } else {
  81                 unset($_SESSION['theme']);
  82                 unset($_SESSION['mobile-theme']);
  83         }
  84 }
  85
  86 function search_content(App $a) {
  87         if (Config::get('system','block_public') && !Session::isAuthenticated()) {
  88                 notice(L10n::t('Public access denied.') . EOL);
  89                 return;
  90         }
  91
  92         if (Config::get('system','local_search') && !Session::isAuthenticated()) {
  93                 $e = new \Friendica\Network\HTTPException\ForbiddenException(L10n::t("Only logged in users are permitted to perform a search."));
  94                 $e->httpdesc = L10n::t("Public access denied.");
  95                 throw $e;
  96         }
  97
  98         if (Config::get('system','permit_crawling') && !Session::isAuthenticated()) {
  99                 // Default values:
 100                 // 10 requests are "free", after the 11th only a call per minute is allowed
 101
 102                 $free_crawls = intval(Config::get('system','free_crawls'));
 103                 if ($free_crawls == 0)
 104                         $free_crawls = 10;
 105
 106                 $crawl_permit_period = intval(Config::get('system','crawl_permit_period'));
 107                 if ($crawl_permit_period == 0)
 108                         $crawl_permit_period = 10;
 109
 110                 $remote = $_SERVER["REMOTE_ADDR"];
 111                 $result = Cache::get("remote_search:".$remote);
 112                 if (!is_null($result)) {
 113                         $resultdata = json_decode($result);
 114                         if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
 115                                 throw new \Friendica\Network\HTTPException\TooManyRequestsException(L10n::t("Only one search per minute is permitted for not logged in users."));
 116                         }
 117                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => $resultdata->accesses + 1]), Cache::HOUR);
 118                 } else
 119                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => 1]), Cache::HOUR);
 120         }
 121
 122         Nav::setSelected('search');
 123
 124         $search = (!empty($_REQUEST['search']) ? Strings::escapeTags(trim(rawurldecode($_REQUEST['search']))) : '');
 125
 126         $tag = false;
 127         if (!empty($_GET['tag'])) {
 128                 $tag = true;
 129                 $search = (!empty($_GET['tag']) ? '#' . Strings::escapeTags(trim(rawurldecode($_GET['tag']))) : '');
 130         }
 131
 132         // contruct a wrapper for the search header
 133         $o = Renderer::replaceMacros(Renderer::getMarkupTemplate("content_wrapper.tpl"),[
 134                 'name' => "search-header",
 135                 '$title' => L10n::t("Search"),
 136                 '$title_size' => 3,
 137                 '$content' => HTML::search($search,'search-box','search', false)
 138         ]);
 139
 140         if (strpos($search,'#') === 0) {
 141                 $tag = true;
 142                 $search = substr($search,1);
 143         }
 144         if (strpos($search,'@') === 0) {
 145                 return BaseSearchModule::performSearch();
 146         }
 147         if (strpos($search,'!') === 0) {
 148                 return BaseSearchModule::performSearch();
 149         }
 150
 151         if (parse_url($search, PHP_URL_SCHEME) != '') {
 152                 $id = Item::fetchByLink($search);
 153                 if (!empty($id)) {
 154                         $item = Item::selectFirst(['guid'], ['id' => $id]);
 155                         if (DBA::isResult($item)) {
 156                                 $a->internalRedirect('display/' . $item['guid']);
 157                         }
 158                 }
 159         }
 160
 161         if (!empty($_GET['search-option']))
 162                 switch($_GET['search-option']) {
 163                         case 'fulltext':
 164                                 break;
 165                         case 'tags':
 166                                 $tag = true;
 167                                 break;
 168                         case 'contacts':
 169                                 return BaseSearchModule::performSearch('@');
 170                         case 'forums':
 171                                 return BaseSearchModule::performSearch('!');
 172                 }
 173
 174         if (!$search)
 175                 return $o;
 176
 177         if (Config::get('system','only_tag_search'))
 178                 $tag = true;
 179
 180         // Here is the way permissions work in the search module...
 181         // Only public posts can be shown
 182         // OR your own posts if you are a logged in member
 183         // No items will be shown if the member has a blocked profile wall.
 184
 185         $pager = new Pager($a->query_string);
 186
 187         if ($tag) {
 188                 Logger::log("Start tag search for '".$search."'", Logger::DEBUG);
 189
 190                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 191                         AND `otype` = ? AND `type` = ? AND `term` = ?",
 192                         local_user(), TERM_OBJ_POST, TERM_HASHTAG, $search];
 193                 $params = ['order' => ['received' => true],
 194                         'limit' => [$pager->getStart(), $pager->getItemsPerPage()]];
 195                 $terms = DBA::select('term', ['oid'], $condition, $params);
 196
 197                 $itemids = [];
 198                 while ($term = DBA::fetch($terms)) {
 199                         $itemids[] = $term['oid'];
 200                 }
 201                 DBA::close($terms);
 202
 203                 if (!empty($itemids)) {
 204                         $params = ['order' => ['id' => true]];
 205                         $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 206                         $r = Item::inArray($items);
 207                 } else {
 208                         $r = [];
 209                 }
 210         } else {
 211                 Logger::log("Start fulltext search for '".$search."'", Logger::DEBUG);
 212
 213                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 214                         AND `body` LIKE CONCAT('%',?,'%')",
 215                         local_user(), $search];
 216                 $params = ['order' => ['id' => true],
 217                         'limit' => [$pager->getStart(), $pager->getItemsPerPage()]];
 218                 $items = Item::selectForUser(local_user(), [], $condition, $params);
 219                 $r = Item::inArray($items);
 220         }
 221
 222         if (!DBA::isResult($r)) {
 223                 info(L10n::t('No results.') . EOL);
 224                 return $o;
 225         }
 226
 227
 228         if ($tag) {
 229                 $title = L10n::t('Items tagged with: %s', $search);
 230         } else {
 231                 $title = L10n::t('Results for: %s', $search);
 232         }
 233
 234         $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate("section_title.tpl"),[
 235                 '$title' => $title
 236         ]);
 237
 238         Logger::log("Start Conversation for '".$search."'", Logger::DEBUG);
 239         $o .= conversation($a, $r, $pager, 'search', false, false, 'commented', local_user());
 240
 241         $o .= $pager->renderMinimal(count($r));
 242
 243         Logger::log("Done '".$search."'", Logger::DEBUG);
 244
 245         return $o;
 246 }