mod/search.php

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