Index: includes/specials/SpecialListfiles.php
===================================================================
--- includes/specials/SpecialListfiles.php	(revision 63755)
+++ includes/specials/SpecialListfiles.php	(working copy)
@@ -41,7 +41,11 @@
 					strtolower( $nt->getDBkey() ), $dbr->anyString() ) );
 			}
 		}
-
+		$user = $wgRequest->getText( 'user', '' ); 
+		$user = Title::makeTitleSafe( NS_USER, $user );
+		if ( $user ) {
+			$this->mQueryConds['img_user_text'] = $user->getText();
+		}
 		parent::__construct();
 	}
 
@@ -158,11 +162,14 @@
 	function getForm() {
 		global $wgRequest, $wgScript, $wgMiserMode;
 		$search = $wgRequest->getText( 'ilsearch' );
+		$user = $wgRequest->getText( 'user' );
 
 		$s = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'id' => 'mw-listfiles-form' ) ) .
 			Xml::openElement( 'fieldset' ) .
 			Xml::element( 'legend', null, wfMsg( 'listfiles' ) ) .
-			Xml::tags( 'label', null, wfMsgHtml( 'table_pager_limit', $this->getLimitSelect() ) );
+			Xml::tags( 'label', null, wfMsgHtml( 'table_pager_limit', $this->getLimitSelect() ) ) .
+			Xml::element( 'br' ) .
+			Xml::inputLabel( wfMsg( 'listfiles_search_user' ), 'user', 'mw-iluser', 20, $user );
 
 		if ( !$wgMiserMode ) {
 			$s .= "<br />\n" .
@@ -170,7 +177,7 @@
 		}
 		$s .= ' ' .
 			Xml::submitButton( wfMsg( 'table_pager_limit_submit' ) ) ."\n" .
-			$this->getHiddenFields( array( 'limit', 'ilsearch' ) ) .
+			$this->getHiddenFields( array( 'limit', 'ilsearch', 'user' ) ) .
 			Xml::closeElement( 'fieldset' ) .
 			Xml::closeElement( 'form' ) . "\n";
 		return $s;
Index: includes/specials/SpecialNewimages.php
===================================================================
--- includes/specials/SpecialNewimages.php	(revision 63755)
+++ includes/specials/SpecialNewimages.php	(working copy)
@@ -13,7 +13,18 @@
 	$sk = $wgUser->getSkin();
 	$shownav = !$specialPage->including();
 	$hidebots = $wgRequest->getBool( 'hidebots' , 1 );
+	$user = $wgRequest->getText( 'user', '' );
 
+	$usersql = '';
+	if ( $user !== '' ) {
+		$user = Title::makeTitleSafe( NS_USER, $user );
+		if ( $user != null ) {
+			$user = $user->getText();
+			$usersql = ' img_user_text = ' . $dbr->addQuotes( $user );
+			# using img_user_text instead of img_user, as that has index
+		}
+	}
+
 	$hidebotsql = '';
 	if ( $hidebots ) {
 		# Make a list of group names which have the 'bot' flag set.
@@ -74,6 +85,11 @@
 		}
 	}
 
+	if ( $user ) {
+		$where[] = $usersql;
+		$searchpar['user'] = $user;
+	}
+
 	$invertSort = false;
 	if( $until = $wgRequest->getVal( 'until' ) ) {
 		$where[] = "img_timestamp < '" . $dbr->timestamp( $until ) . "'";
@@ -138,11 +154,18 @@
 
 	$titleObj = SpecialPage::getTitleFor( 'Newimages' );
 	$action = $titleObj->getLocalURL( $hidebots ? '' : 'hidebots=0' );
-	if ( $shownav && !$wgMiserMode ) {
+	if ( $shownav ) {
 		$wgOut->addHTML(
 			Xml::openElement( 'form', array( 'action' => $action, 'method' => 'post', 'id' => 'imagesearch' ) ) .
 			Xml::fieldset( wfMsg( 'newimages-legend' ) ) .
-			Xml::inputLabel( wfMsg( 'newimages-label' ), 'wpIlMatch', 'wpIlMatch', 20, $wpIlMatch ) . ' ' .
+			Xml::inputLabel( wfMsg( 'newimages-user' ), 'user', 'mw-niuser', 20, $user ) . ' '
+		);
+		if ( !$wgMiserMode ) {
+			$wgOut->addHTML(
+				Xml::inputLabel( wfMsg( 'newimages-label' ), 'wpIlMatch', 'wpIlMatch', 20, $wpIlMatch ) . ' ' 
+			);
+		}
+		$wgOut->addHTML(
 			Xml::submitButton( wfMsg( 'ilsubmit' ), array( 'name' => 'wpIlSubmit' ) ) .
 			Xml::closeElement( 'fieldset' ) .
 			Xml::closeElement( 'form' )
Index: languages/messages/MessagesEn.php
===================================================================
--- languages/messages/MessagesEn.php	(revision 63755)
+++ languages/messages/MessagesEn.php	(working copy)
@@ -2189,6 +2189,7 @@
 By default the last uploaded files are shown at top of the list.
 A click on a column header changes the sorting.',
 'listfiles_search_for'  => 'Search for media name:',
+'listfiles_search_user' => 'Username:',
 'imgfile'               => 'file',
 'listfiles'             => 'File list',
 'listfiles_date'        => 'Date',
@@ -3483,6 +3484,7 @@
 'newimages-summary'     => 'This special page shows the last uploaded files.',
 'newimages-legend'      => 'Filter',
 'newimages-label'       => 'Filename (or a part of it):',
+'newimages-user'        => 'Username:',
 'showhidebots'          => '($1 bots)',
 'noimages'              => 'Nothing to see.',
 'ilsubmit'              => 'Search',