includes/specials/SpecialNewimages.php

   1 <?php
   2 /**
   3  * Implements Special:Newimages
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * @todo FIXME: this code is crap, should use Pager and Database::select().
  26  */
  27 function wfSpecialNewimages( $par, $specialPage ) {
  28         global $wgUser, $wgOut, $wgLang, $wgRequest, $wgMiserMode;
  29
  30         $wpIlMatch = $wgRequest->getText( 'wpIlMatch' );
  31         $dbr = wfGetDB( DB_SLAVE );
  32         $sk = $wgUser->getSkin();
  33         $shownav = !$specialPage->including();
  34         $hidebots = $wgRequest->getBool( 'hidebots' , 1 );
  35
  36         $hidebotsql = '';
  37         if ( $hidebots ) {
  38                 # Make a list of group names which have the 'bot' flag set.
  39                 $botconds = array();
  40                 foreach ( User::getGroupsWithPermission('bot') as $groupname ) {
  41                         $botconds[] = 'ug_group = ' . $dbr->addQuotes( $groupname );
  42                 }
  43
  44                 # If not bot groups, do not set $hidebotsql
  45                 if ( $botconds ) {
  46                         $isbotmember = $dbr->makeList( $botconds, LIST_OR );
  47
  48                         # This join, in conjunction with WHERE ug_group IS NULL, returns
  49                         # only those rows from IMAGE where the uploading user is not a mem-
  50                         # ber of a group which has the 'bot' permission set.
  51                         $ug = $dbr->tableName( 'user_groups' );
  52                         $hidebotsql = " LEFT JOIN $ug ON img_user=ug_user AND ($isbotmember)";
  53                 }
  54         }
  55
  56         $image = $dbr->tableName( 'image' );
  57
  58         $sql = "SELECT img_timestamp from $image";
  59         if ($hidebotsql) {
  60                 $sql .= "$hidebotsql WHERE ug_group IS NULL";
  61         }
  62         $sql .= ' ORDER BY img_timestamp DESC';
  63         $sql = $dbr->limitResult($sql, 1, false);
  64         $res = $dbr->query( $sql, __FUNCTION__ );
  65         $row = $dbr->fetchRow( $res );
  66         if( $row !== false ) {
  67                 $ts = $row[0];
  68         } else {
  69                 $ts = false;
  70         }
  71
  72         # If we were clever, we'd use this to cache.
  73         $latestTimestamp = wfTimestamp( TS_MW, $ts );
  74
  75         # Hardcode this for now.
  76         $limit = 48;
  77
  78         if ( $parval = intval( $par ) ) {
  79                 if ( $parval <= $limit && $parval > 0 ) {
  80                         $limit = $parval;
  81                 }
  82         }
  83
  84         $where = array();
  85         $searchpar = array();
  86         if ( $wpIlMatch != '' && !$wgMiserMode) {
  87                 $nt = Title::newFromURL( $wpIlMatch );
  88                 if( $nt ) {
  89                         $where[] = 'LOWER(img_name) ' .  $dbr->buildLike( $dbr->anyString(), strtolower( $nt->getDBkey() ), $dbr->anyString() );
  90                         $searchpar['wpIlMatch'] = $wpIlMatch;
  91                 }
  92         }
  93
  94         $invertSort = false;
  95         if( $until = $wgRequest->getVal( 'until' ) ) {
  96                 $where[] = "img_timestamp < '" . $dbr->timestamp( $until ) . "'";
  97         }
  98         if( $from = $wgRequest->getVal( 'from' ) ) {
  99                 $where[] = "img_timestamp >= '" . $dbr->timestamp( $from ) . "'";
 100                 $invertSort = true;
 101         }
 102         $sql = 'SELECT img_size, img_name, img_user, img_user_text,'.
 103              "img_description,img_timestamp FROM $image";
 104
 105         if( $hidebotsql ) {
 106                 $sql .= $hidebotsql;
 107                 $where[] = 'ug_group IS NULL';
 108         }
 109         if( count( $where ) ) {
 110                 $sql .= ' WHERE ' . $dbr->makeList( $where, LIST_AND );
 111         }
 112         $sql.=' ORDER BY img_timestamp '. ( $invertSort ? '' : ' DESC' );
 113         $sql = $dbr->limitResult($sql, ( $limit + 1 ), false);
 114         $res = $dbr->query( $sql, __FUNCTION__ );
 115
 116         /**
 117          * We have to flip things around to get the last N after a certain date
 118          */
 119         $images = array();
 120         foreach ( $res as $s ) {
 121                 if( $invertSort ) {
 122                         array_unshift( $images, $s );
 123                 } else {
 124                         array_push( $images, $s );
 125                 }
 126         }
 127
 128         $gallery = new ImageGallery();
 129         $firstTimestamp = null;
 130         $lastTimestamp = null;
 131         $shownImages = 0;
 132         foreach( $images as $s ) {
 133                 $shownImages++;
 134                 if( $shownImages > $limit ) {
 135                         # One extra just to test for whether to show a page link;
 136                         # don't actually show it.
 137                         break;
 138                 }
 139
 140                 $name = $s->img_name;
 141                 $ut = $s->img_user_text;
 142
 143                 $nt = Title::newFromText( $name, NS_FILE );
 144                 $ul = $sk->link( Title::makeTitle( NS_USER, $ut ), $ut );
 145
 146                 $gallery->add( $nt, "$ul<br />\n<i>".htmlspecialchars($wgLang->timeanddate( $s->img_timestamp, true ))."</i><br />\n" );
 147
 148                 $timestamp = wfTimestamp( TS_MW, $s->img_timestamp );
 149                 if( empty( $firstTimestamp ) ) {
 150                         $firstTimestamp = $timestamp;
 151                 }
 152                 $lastTimestamp = $timestamp;
 153         }
 154
 155         $titleObj = SpecialPage::getTitleFor( 'Newimages' );
 156         $action = $titleObj->getLocalURL( $hidebots ? '' : 'hidebots=0' );
 157         if ( $shownav && !$wgMiserMode ) {
 158                 $wgOut->addHTML(
 159                         Xml::openElement( 'form', array( 'action' => $action, 'method' => 'post', 'id' => 'imagesearch' ) ) .
 160                         Xml::fieldset( wfMsg( 'newimages-legend' ) ) .
 161                         Xml::inputLabel( wfMsg( 'newimages-label' ), 'wpIlMatch', 'wpIlMatch', 20, $wpIlMatch ) . ' ' .
 162                         Xml::submitButton( wfMsg( 'ilsubmit' ), array( 'name' => 'wpIlSubmit' ) ) .
 163                         Xml::closeElement( 'fieldset' ) .
 164                         Xml::closeElement( 'form' )
 165                  );
 166         }
 167
 168         $bydate = wfMsg( 'bydate' );
 169         $lt = $wgLang->formatNum( min( $shownImages, $limit ) );
 170         if ( $shownav ) {
 171                 $text = wfMsgExt( 'imagelisttext', array('parse'), $lt, $bydate );
 172                 $wgOut->addHTML( $text . "\n" );
 173         }
 174
 175         /**
 176          * Paging controls...
 177          */
 178
 179         # If we change bot visibility, this needs to be carried along.
 180         if( !$hidebots ) {
 181                 $botpar = array( 'hidebots' => 0 );
 182         } else {
 183                 $botpar = array();
 184         }
 185         $now = wfTimestampNow();
 186         $d = $wgLang->date( $now, true );
 187         $t = $wgLang->time( $now, true );
 188         $query = array_merge(
 189                 array( 'from' => $now ),
 190                 $botpar,
 191                 $searchpar
 192         );
 193
 194         $dateLink = $sk->linkKnown(
 195                 $titleObj,
 196                 htmlspecialchars( wfMsg( 'sp-newimages-showfrom', $d, $t ) ),
 197                 array(),
 198                 $query
 199         );
 200
 201         $query = array_merge(
 202                 array( 'hidebots' => ( $hidebots ? 0 : 1 ) ),
 203                 $searchpar
 204         );
 205
 206         $showhide = $hidebots ? wfMsg( 'show' ) : wfMsg( 'hide' );
 207
 208         $botLink = $sk->linkKnown(
 209                 $titleObj,
 210                 htmlspecialchars( wfMsg( 'showhidebots', $showhide ) ),
 211                 array(),
 212                 $query
 213         );
 214
 215         $opts = array( 'parsemag', 'escapenoentities' );
 216         $prevLink = wfMsgExt( 'pager-newer-n', $opts, $wgLang->formatNum( $limit ) );
 217         if( $firstTimestamp && $firstTimestamp != $latestTimestamp ) {
 218                 $query = array_merge(
 219                         array( 'from' => $firstTimestamp ),
 220                         $botpar,
 221                         $searchpar
 222                 );
 223
 224                 $prevLink = $sk->linkKnown(
 225                         $titleObj,
 226                         $prevLink,
 227                         array(),
 228                         $query
 229                 );
 230         }
 231
 232         $nextLink = wfMsgExt( 'pager-older-n', $opts, $wgLang->formatNum( $limit ) );
 233         if( $invertSort || ( $shownImages > $limit && $lastTimestamp ) ) {
 234                 $query = array_merge(
 235                         array( 'until' => ( $lastTimestamp ? $lastTimestamp : "" ) ),
 236                         $botpar,
 237                         $searchpar
 238                 );
 239
 240                 $nextLink = $sk->linkKnown(
 241                         $titleObj,
 242                         $nextLink,
 243                         array(),
 244                         $query
 245                 );
 246
 247         }
 248
 249         $prevnext = '<p>' . $botLink . ' '. wfMsgHtml( 'viewprevnext', $prevLink, $nextLink, $dateLink ) .'</p>';
 250
 251         if ($shownav)
 252                 $wgOut->addHTML( $prevnext );
 253
 254         if( count( $images ) ) {
 255                 $wgOut->addHTML( $gallery->toHTML() );
 256                 if ($shownav)
 257                         $wgOut->addHTML( $prevnext );
 258         } else {
 259                 $wgOut->addWikiMsg( 'noimages' );
 260         }
 261 }