includes/SpecialNewimages.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /** */
   9 require_once( 'ImageGallery.php' );
  10
  11 /**
  12  *
  13  */
  14 function wfSpecialNewimages( $par, $specialPage ) {
  15         global $wgUser, $wgOut, $wgLang, $wgContLang, $wgRequest,
  16                $wgGroupPermissions;
  17
  18         $wpIlMatch = $wgRequest->getText( 'wpIlMatch' );
  19         $dbr =& wfGetDB( DB_SLAVE );
  20         $sk = $wgUser->getSkin();
  21         $shownav = !$specialPage->including();
  22         $hidebots = $wgRequest->getBool('hidebots',1);
  23
  24         if($hidebots) {
  25
  26                 /** Make a list of group names which have the 'bot' flag
  27                     set.
  28                 */
  29                 $botconds=array();
  30                 foreach ($wgGroupPermissions as $groupname=>$perms) {
  31                         if(array_key_exists('bot',$perms) && $perms['bot']) {
  32                                 $botconds[]="ug_group='$groupname'";
  33                         }
  34                 }
  35                 $isbotmember=$dbr->makeList($botconds, LIST_OR);
  36
  37                 /** This join, in conjunction with WHERE ug_group
  38                     IS NULL, returns only those rows from IMAGE
  39                     where the uploading user is not a member of
  40                     a group which has the 'bot' permission set.
  41                 */
  42                 $ug = $dbr->tableName('user_groups');
  43                 $joinsql=" LEFT OUTER JOIN $ug ON img_user=ug_user AND ("
  44                   . $isbotmember.')';
  45         }
  46
  47         $image = $dbr->tableName('image');
  48
  49         $sql="SELECT img_timestamp from $image";
  50         if($hidebots) {
  51                 $sql.=$joinsql.' WHERE ug_group IS NULL';
  52         }
  53         $sql.=' ORDER BY img_timestamp DESC LIMIT 1';
  54         $res = $dbr->query($sql, 'wfSpecialNewImages');
  55         $row = $dbr->fetchRow($res);
  56         if($row!==false) {
  57                 $ts=$row[0];
  58         } else {
  59                 $ts=false;
  60         }
  61         $dbr->freeResult($res);
  62         $sql='';
  63
  64         /** If we were clever, we'd use this to cache. */
  65         $latestTimestamp = wfTimestamp( TS_MW, $ts);
  66
  67         /** Hardcode this for now. */
  68         $limit = 48;
  69
  70         if ( $parval = intval( $par ) )
  71                 if ( $parval <= $limit && $parval > 0 )
  72                         $limit = $parval;
  73
  74         $where = array();
  75         if ( $wpIlMatch != '' ) {
  76                 $nt = Title::newFromUrl( $wpIlMatch );
  77                 if($nt ) {
  78                         $m = $dbr->strencode( strtolower( $nt->getDBkey() ) );
  79                         $m = str_replace( '%', "\\%", $m );
  80                         $m = str_replace( '_', "\\_", $m );
  81                         $where[] = "LCASE(img_name) LIKE '%{$m}%'";
  82                 }
  83         }
  84
  85         $invertSort = false;
  86         if( $until = $wgRequest->getVal( 'until' ) ) {
  87                 $where[] = 'img_timestamp < ' . $dbr->timestamp( $until );
  88         }
  89         if( $from = $wgRequest->getVal( 'from' ) ) {
  90                 $where[] = 'img_timestamp >= ' . $dbr->timestamp( $from );
  91                 $invertSort = true;
  92         }
  93         $sql='SELECT img_size, img_name, img_user, img_user_text,'.
  94              "img_description,img_timestamp FROM $image";
  95
  96         if($hidebots) {
  97                 $sql.=$joinsql;
  98                 $where[]='ug_group IS NULL';
  99         }
 100         if(count($where)) {
 101                 $sql.=' WHERE '.$dbr->makeList($where, LIST_AND);
 102         }
 103         $sql.=' ORDER BY img_timestamp '. ( $invertSort ? '' : ' DESC' );
 104         $sql.=' LIMIT '.($limit+1);
 105         $res = $dbr->query($sql, 'wfSpecialNewImages');
 106
 107         /**
 108          * We have to flip things around to get the last N after a certain date
 109          */
 110         $images = array();
 111         while ( $s = $dbr->fetchObject( $res ) ) {
 112                 if( $invertSort ) {
 113                         array_unshift( $images, $s );
 114                 } else {
 115                         array_push( $images, $s );
 116                 }
 117         }
 118         $dbr->freeResult( $res );
 119
 120         $gallery = new ImageGallery();
 121         $firstTimestamp = null;
 122         $lastTimestamp = null;
 123         $shownImages = 0;
 124         foreach( $images as $s ) {
 125                 if( ++$shownImages > $limit ) {
 126                         # One extra just to test for whether to show a page link;
 127                         # don't actually show it.
 128                         break;
 129                 }
 130
 131                 $name = $s->img_name;
 132                 $ut = $s->img_user_text;
 133
 134                 $nt = Title::newFromText( $name, NS_IMAGE );
 135                 $img = Image::newFromTitle( $nt );
 136                 $ul = $sk->makeLinkObj( Title::makeTitle( NS_USER, $ut ), $ut );
 137
 138                 $gallery->add( $img, "$ul<br />\n<i>".$wgLang->timeanddate( $s->img_timestamp, true )."</i><br />\n" );
 139
 140                 $timestamp = wfTimestamp( TS_MW, $s->img_timestamp );
 141                 if( empty( $firstTimestamp ) ) {
 142                         $firstTimestamp = $timestamp;
 143                 }
 144                 $lastTimestamp = $timestamp;
 145         }
 146
 147         $bydate = wfMsg( 'bydate' );
 148         $lt = $wgLang->formatNum( min( $shownImages, $limit ) );
 149         if ($shownav) {
 150                 $text = wfMsg( 'imagelisttext', "<strong>{$lt}</strong>", "<strong>{$bydate}</strong>" );
 151                 $wgOut->addHTML( "<p>{$text}\n</p>" );
 152         }
 153
 154         $sub = wfMsg( 'ilsubmit' );
 155         $titleObj = Title::makeTitle( NS_SPECIAL, 'Newimages' );
 156         $action = $titleObj->escapeLocalURL(  "limit={$limit}" );
 157         if(!$hidebots) {
 158                 $action.='&hidebots=0';
 159         }
 160         if ($shownav) {
 161                 $wgOut->addHTML( "<form id=\"imagesearch\" method=\"post\" action=\"" .
 162                   "{$action}\">" .
 163                   "<input type='text' size='20' name=\"wpIlMatch\" value=\"" .
 164                   htmlspecialchars( $wpIlMatch ) . "\" /> " .
 165                   "<input type='submit' name=\"wpIlSubmit\" value=\"{$sub}\" /></form>" );
 166         }
 167         $here = $wgContLang->specialPage( 'Newimages' );
 168
 169         /**
 170          * Paging controls...
 171          */
 172
 173         # If we change bot visibility, this needs to be carried along.
 174         if(!$hidebots) {
 175                 $botpar='&hidebots=0';
 176         } else {
 177                 $botpar='';
 178         }
 179         $now = wfTimestampNow();
 180         $date = $wgLang->timeanddate( $now );
 181         $dateLink = $sk->makeKnownLinkObj( $titleObj, wfMsg( 'rclistfrom', $date ), 'from='.$now.$botpar );
 182
 183         $botLink = $sk->makeKnownLinkObj($titleObj, wfMsg( 'showhidebots', ($hidebots ? wfMsg('show') : wfMsg('hide'))),'hidebots='.($hidebots ? '0' : '1'));
 184
 185         $prevLink = wfMsg( 'prevn', $wgLang->formatNum( $limit ) );
 186         if( $firstTimestamp && $firstTimestamp != $latestTimestamp ) {
 187                 $prevLink = $sk->makeKnownLinkObj( $titleObj, $prevLink, 'from=' . $firstTimestamp . $botpar );
 188         }
 189
 190         $nextLink = wfMsg( 'nextn', $wgLang->formatNum( $limit ) );
 191         if( $shownImages > $limit && $lastTimestamp ) {
 192                 $nextLink = $sk->makeKnownLinkObj( $titleObj, $nextLink, 'until=' . $lastTimestamp.$botpar );
 193         }
 194
 195         $prevnext = '<p>' . $botLink . ' '. wfMsg( 'viewprevnext', $prevLink, $nextLink, $dateLink ) .'</p>';
 196
 197         if ($shownav)
 198                 $wgOut->addHTML( $prevnext );
 199
 200         if( count( $images ) ) {
 201                 $wgOut->addHTML( $gallery->toHTML() );
 202                 if ($shownav)
 203                         $wgOut->addHTML( $prevnext );
 204         } else {
 205                 $wgOut->addWikiText( wfMsg( 'noimages' ) );
 206         }
 207 }
 208
 209 ?>