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                 $a->page['aside'] .= search_saved_searches();
  78
  79         } else {
  80                 unset($_SESSION['theme']);
  81                 unset($_SESSION['mobile-theme']);
  82         }
  83
  84
  85
  86 }
  87
  88
  89
  90 function search_post(App $a) {
  91         if (x($_POST,'search'))
  92                 $a->data['search'] = $_POST['search'];
  93 }
  94
  95
  96 function search_content(App $a) {
  97
  98         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
  99                 notice(L10n::t('Public access denied.') . EOL);
 100                 return;
 101         }
 102
 103         if (Config::get('system','local_search') && !local_user() && !remote_user()) {
 104                 System::httpExit(403,
 105                                 ["title" => L10n::t("Public access denied."),
 106                                         "description" => L10n::t("Only logged in users are permitted to perform a search.")]);
 107                 killme();
 108                 //notice(L10n::t('Public access denied.').EOL);
 109                 //return;
 110         }
 111
 112         if (Config::get('system','permit_crawling') && !local_user() && !remote_user()) {
 113                 // Default values:
 114                 // 10 requests are "free", after the 11th only a call per minute is allowed
 115
 116                 $free_crawls = intval(Config::get('system','free_crawls'));
 117                 if ($free_crawls == 0)
 118                         $free_crawls = 10;
 119
 120                 $crawl_permit_period = intval(Config::get('system','crawl_permit_period'));
 121                 if ($crawl_permit_period == 0)
 122                         $crawl_permit_period = 10;
 123
 124                 $remote = $_SERVER["REMOTE_ADDR"];
 125                 $result = Cache::get("remote_search:".$remote);
 126                 if (!is_null($result)) {
 127                         $resultdata = json_decode($result);
 128                         if (($resultdata->time > (time() - $crawl_permit_period)) && ($resultdata->accesses > $free_crawls)) {
 129                                 System::httpExit(429,
 130                                                 ["title" => L10n::t("Too Many Requests"),
 131                                                         "description" => L10n::t("Only one search per minute is permitted for not logged in users.")]);
 132                                 killme();
 133                         }
 134                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => $resultdata->accesses + 1]), CACHE_HOUR);
 135                 } else
 136                         Cache::set("remote_search:".$remote, json_encode(["time" => time(), "accesses" => 1]), CACHE_HOUR);
 137         }
 138
 139         Nav::setSelected('search');
 140
 141         $search = '';
 142         if (x($a->data,'search'))
 143                 $search = notags(trim($a->data['search']));
 144         else
 145                 $search = ((x($_GET,'search')) ? notags(trim(rawurldecode($_GET['search']))) : '');
 146
 147         $tag = false;
 148         if (x($_GET,'tag')) {
 149                 $tag = true;
 150                 $search = (x($_GET,'tag') ? '#' . notags(trim(rawurldecode($_GET['tag']))) : '');
 151         }
 152
 153         // contruct a wrapper for the search header
 154         $o = replace_macros(get_markup_template("content_wrapper.tpl"),[
 155                 'name' => "search-header",
 156                 '$title' => L10n::t("Search"),
 157                 '$title_size' => 3,
 158                 '$content' => search($search,'search-box','search',((local_user()) ? true : false), false)
 159         ]);
 160
 161         if (strpos($search,'#') === 0) {
 162                 $tag = true;
 163                 $search = substr($search,1);
 164         }
 165         if (strpos($search,'@') === 0) {
 166                 return dirfind_content($a);
 167         }
 168         if (strpos($search,'!') === 0) {
 169                 return dirfind_content($a);
 170         }
 171
 172         if (x($_GET,'search-option'))
 173                 switch($_GET['search-option']) {
 174                         case 'fulltext':
 175                                 break;
 176                         case 'tags':
 177                                 $tag = true;
 178                                 break;
 179                         case 'contacts':
 180                                 return dirfind_content($a, "@");
 181                                 break;
 182                         case 'forums':
 183                                 return dirfind_content($a, "!");
 184                                 break;
 185                 }
 186
 187         if (!$search)
 188                 return $o;
 189
 190         if (Config::get('system','only_tag_search'))
 191                 $tag = true;
 192
 193         // Here is the way permissions work in the search module...
 194         // Only public posts can be shown
 195         // OR your own posts if you are a logged in member
 196         // No items will be shown if the member has a blocked profile wall.
 197
 198         if ($tag) {
 199                 logger("Start tag search for '".$search."'", LOGGER_DEBUG);
 200
 201                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 202                         AND `otype` = ? AND `type` = ? AND `term` = ?",
 203                         local_user(), TERM_OBJ_POST, TERM_HASHTAG, $search];
 204                 $params = ['order' => ['created' => true],
 205                         'limit' => [$a->pager['start'], $a->pager['itemspage']]];
 206                 $terms = dba::select('term', ['oid'], $condition, $params);
 207
 208                 $itemids = [];
 209                 while ($term = dba::fetch($terms)) {
 210                         $itemids[] = $term['oid'];
 211                 }
 212                 dba::close($terms);
 213
 214                 if (!empty($itemids)) {
 215                         $params = ['order' => ['id' => true]];
 216                         $items = Item::selectForUser(local_user(), [], ['id' => $itemids], $params);
 217                         $r = Item::inArray($items);
 218                 } else {
 219                         $r = [];
 220                 }
 221         } else {
 222                 logger("Start fulltext search for '".$search."'", LOGGER_DEBUG);
 223
 224                 $condition = ["(`uid` = 0 OR (`uid` = ? AND NOT `global`))
 225                         AND `body` LIKE CONCAT('%',?,'%')",
 226                         local_user(), $search];
 227                 $params = ['order' => ['id' => true],
 228                         'limit' => [$a->pager['start'], $a->pager['itemspage']]];
 229                 $items = Item::selectForUser(local_user(), [], $condition, $params);
 230                 $r = Item::inArray($items);
 231         }
 232
 233         if (!DBM::is_result($r)) {
 234                 info(L10n::t('No results.') . EOL);
 235                 return $o;
 236         }
 237
 238
 239         if ($tag) {
 240                 $title = L10n::t('Items tagged with: %s', $search);
 241         } else {
 242                 $title = L10n::t('Results for: %s', $search);
 243         }
 244
 245         $o .= replace_macros(get_markup_template("section_title.tpl"),[
 246                 '$title' => $title
 247         ]);
 248
 249         logger("Start Conversation for '".$search."'", LOGGER_DEBUG);
 250         $o .= conversation($a, $r, 'search', false, false, 'commented', local_user());
 251
 252         $o .= alt_pager($a,count($r));
 253
 254         logger("Done '".$search."'", LOGGER_DEBUG);
 255
 256         return $o;
 257 }