mod/search.php

   1 <?php
   2 /**
   3  * @file mod/search.php
   4  */
   5 use Friendica\App;
   6 use Friendica\Content\Feature;
   7 use Friendica\Content\Nav;
   8 use Friendica\Core\Cache;
   9 use Friendica\Core\Config;
  10 use Friendica\Core\L10n;
  11 use Friendica\Core\System;
  12 use Friendica\Database\DBM;
  13 use Friendica\Model\Item;
  14
  15 require_once 'include/security.php';
  16 require_once 'include/conversation.php';
  17 require_once 'mod/dirfind.php';
  18
  19 function search_saved_searches() {
  20
  21         $o = '';
  22         $search = ((x($_GET,'search')) ? notags(trim(rawurldecode($_GET['search']))) : '');
  23
  24         if (!Feature::isEnabled(local_user(),'savedsearch'))
  25                 return $o;
  26
  27         $r = q("SELECT `id`,`term` FROM `search` WHERE `uid` = %d",
  28                 intval(local_user())
  29         );
  30
  31         if (DBM::is_result($r)) {
  32                 $saved = [];
  33                 foreach ($r as $rr) {
  34                         $saved[] = [
  35                                 'id'            => $rr['id'],
  36                                 'term'          => $rr['term'],
  37                                 'encodedterm'   => urlencode($rr['term']),
  38                                 'delete'        => L10n::t('Remove term'),
  39                                 'selected'      => ($search==$rr['term']),
  40                         ];
  41                 }
  42
  43
  44                 $tpl = get_markup_template("saved_searches_aside.tpl");
  45
  46                 $o .= replace_macros($tpl, [
  47                         '$title'        => L10n::t('Saved Searches'),
  48                         '$add'          => '',
  49                         '$searchbox'    => '',
  50                         '$saved'        => $saved,
  51                 ]);
  52         }
  53
  54         return $o;
  55
  56 }
  57
  58
  59 function search_init(App $a) {
  60
  61         $search = ((x($_GET,'search')) ? notags(trim(rawurldecode($_GET['search']))) : '');
  62
  63         if (local_user()) {
  64                 if (x($_GET,'save') && $search) {
  65                         $r = q("SELECT * FROM `search` WHERE `uid` = %d AND `term` = '%s' LIMIT 1",
  66                                 intval(local_user()),
  67                                 dbesc($search)
  68                         );
  69                         if (!DBM::is_result($r)) {
  70                                 dba::insert('search', ['uid' => local_user(), 'term' => $search]);
  71                         }
  72                 }
  73                 if (x($_GET,'remove') && $search) {
  74                         dba::delete('search', ['uid' => local_user(), 'term' => $search]);
  75                 }
  76
  77                 /// @todo Check if there is a case at all that "aside" is prefilled here
  78                 if (!isset($a->page['aside'])) {
  79                         $a->page['aside'] = '';
  80                 }
  81
  82                 $a->page['aside'] .= search_saved_searches();
  83
  84         } else {
  85                 unset($_SESSION['theme']);
  86                 unset($_SESSION['mobile-theme']);
  87         }
  88
  89
  90
  91 }
  92
  93
  94
  95 function search_post(App $a) {
  96         if (x($_POST,'search'))
  97                 $a->data['search'] = $_POST['search'];
  98 }
  99
 100
 101 function search_content(App $a) {
 102
 103         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
 104                 notice(L10n::t('Public access denied.') . EOL);
 105                 return;
 106         }
 107
 108         if (Config::get('system','local_search') && !local_user() && !remote_user()) {
 109                 System::httpExit(403,
 110                                 ["title" => L10n::t("Public access denied."),
 111                                         "description" => L10n::t("Only logged in users are permitted to perform a search.")]);
 112                 killme();
 113                 //notice(L10n::t('Public access denied.').EOL);
 114                 //return;
 115         }
 116
 117         if (Config::get('system','permit_crawling') && !local_user() && !remote_user()) {
 118                 // Default values:
 119                 // 10 requests are "free", after the 11th only a call per minute is allowed
 120
 121                 $free_crawls = intval(Config::get('system','free_crawls'));
 122                 if ($free_crawls == 0)
 123                         $free_crawls = 10;
 124
 125                 $crawl_permit_period = intval(Config::get('system','crawl_permit_period'));
 126                 if ($crawl_permit_period == 0)
 127                         $crawl_permit_period = 10;
 128
 129                 $remote = $_SERVER["REMOTE_ADDR"];
 130                 $result = Cache::get("remote_search:".$remote);
 131                 if (!is_null($result)) {
 132                         $resultdata = json_decode($result);
 133                         if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
 134                                 System::httpExit(429,
 135                                                 ["title" => L10n::t("Too Many Requests"),
 136                                                         "description" => L10n::t("Only one search per minute is permitted for not logged in users.")]);
 137                                 killme();
 138                         }
 139                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => $resultdata->accesses + 1]), CACHE_HOUR);
 140                 } else
 141                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => 1]), CACHE_HOUR);
 142         }
 143
 144         Nav::setSelected('search');
 145
 146         $search = '';
 147         if (x($a->data,'search'))
 148                 $search = notags(trim($a->data['search']));
 149         else
 150                 $search = ((x($_GET,'search')) ? notags(trim(rawurldecode($_GET['search']))) : '');
 151
 152         $tag = false;
 153         if (x($_GET,'tag')) {
 154                 $tag = true;
 155                 $search = (x($_GET,'tag') ? '#' . notags(trim(rawurldecode($_GET['tag']))) : '');
 156         }
 157
 158         // contruct a wrapper for the search header
 159         $o = replace_macros(get_markup_template("content_wrapper.tpl"),[
 160                 'name' => "search-header",
 161                 '$title' => L10n::t("Search"),
 162                 '$title_size' => 3,
 163                 '$content' => search($search,'search-box','search',((local_user()) ? true : false), false)
 164         ]);
 165
 166         if (strpos($search,'#') === 0) {
 167                 $tag = true;
 168                 $search = substr($search,1);
 169         }
 170         if (strpos($search,'@') === 0) {
 171                 return dirfind_content($a);
 172         }
 173         if (strpos($search,'!') === 0) {
 174                 return dirfind_content($a);
 175         }
 176
 177         if (x($_GET,'search-option'))
 178                 switch($_GET['search-option']) {
 179                         case 'fulltext':
 180                                 break;
 181                         case 'tags':
 182                                 $tag = true;
 183                                 break;
 184                         case 'contacts':
 185                                 return dirfind_content($a, "@");
 186                                 break;
 187                         case 'forums':
 188                                 return dirfind_content($a, "!");
 189                                 break;
 190                 }
 191
 192         if (!$search)
 193                 return $o;
 194
 195         if (Config::get('system','only_tag_search'))
 196                 $tag = true;
 197
 198         // Here is the way permissions work in the search module...
 199         // Only public posts can be shown
 200         // OR your own posts if you are a logged in member
 201         // No items will be shown if the member has a blocked profile wall.
 202
 203         if ($tag) {
 204                 logger("Start tag search for '".$search."'", LOGGER_DEBUG);
 205
 206                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 207                         AND `otype` = ? AND `type` = ? AND `term` = ?",
 208                         local_user(), TERM_OBJ_POST, TERM_HASHTAG, $search];
 209                 $params = ['order' => ['created' => true],
 210                         'limit' => [$a->pager['start'], $a->pager['itemspage']]];
 211                 $terms = dba::select('term', ['oid'], $condition, $params);
 212
 213                 $itemids = [];
 214                 while ($term = dba::fetch($terms)) {
 215                         $itemids[] = $term['oid'];
 216                 }
 217                 dba::close($terms);
 218
 219                 if (!empty($itemids)) {
 220                         $params = ['order' => ['id' => true]];
 221                         $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 222                         $r = Item::inArray($items);
 223                 } else {
 224                         $r = [];
 225                 }
 226         } else {
 227                 logger("Start fulltext search for '".$search."'", LOGGER_DEBUG);
 228
 229                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 230                         AND `body` LIKE CONCAT('%',?,'%')",
 231                         local_user(), $search];
 232                 $params = ['order' => ['id' => true],
 233                         'limit' => [$a->pager['start'], $a->pager['itemspage']]];
 234                 $items = Item::selectForUser(local_user(), [], $condition, $params);
 235                 $r = Item::inArray($items);
 236         }
 237
 238         if (!DBM::is_result($r)) {
 239                 info(L10n::t('No results.') . EOL);
 240                 return $o;
 241         }
 242
 243
 244         if ($tag) {
 245                 $title = L10n::t('Items tagged with: %s', $search);
 246         } else {
 247                 $title = L10n::t('Results for: %s', $search);
 248         }
 249
 250         $o .= replace_macros(get_markup_template("section_title.tpl"),[
 251                 '$title' => $title
 252         ]);
 253
 254         logger("Start Conversation for '".$search."'", LOGGER_DEBUG);
 255         $o .= conversation($a, $r, 'search', false, false, 'commented', local_user());
 256
 257         $o .= alt_pager($a,count($r));
 258
 259         logger("Done '".$search."'", LOGGER_DEBUG);
 260
 261         return $o;
 262 }