diff --git a/apps/files_sharing/js/share.js b/apps/files_sharing/js/share.js
index c0fc91e92add34f59912976cd0e675afeabb9402..131571351c57cf282e59f384aa19a820a556c43f 100644
--- a/apps/files_sharing/js/share.js
+++ b/apps/files_sharing/js/share.js
@@ -10,7 +10,7 @@ $(document).ready(function() {
 				type: 'GET',
 				url: OC.linkTo('files_sharing', 'ajax/getitem.php'),
 				dataType: 'json',
-				data: 'source='+file,
+				data: {source: file},
 				async: false,
 				success: function(users) {
 					if (users) {
@@ -184,8 +184,8 @@ function createDropdown(filename, files) {
 	html += '<input id="link" style="display:none; width:90%;" />';
 	html += '</div>';
 	if (filename) {
-		$('tr[data-file="'+filename+'"]').addClass('mouseOver');
-		$(html).appendTo($('tr[data-file="'+filename+'"] td.filename'));
+		$('tr').filterAttr('data-file',filename).addClass('mouseOver');
+		$(html).appendTo($('tr').filterAttr('data-file',filename).find('td.filename'));
 	} else {
 		$(html).appendTo($('thead .share'));
 	}
diff --git a/core/js/js.js b/core/js/js.js
index 9e814ca07298d23fae5a176997c84ab065d67d80..440f504c8f7e408ec95497f59dd70c331ab779c3 100644
--- a/core/js/js.js
+++ b/core/js/js.js
@@ -401,3 +401,10 @@ if (!Array.prototype.map){
 	    return res;
 	};
 }
+
+/**
+ * Filter Jquery selector by attribute value
+ **/
+$.fn.filterAttr = function(attr_name, attr_value) {  
+   return this.filter(function() { return $(this).attr(attr_name) === attr_value; });
+};
diff --git a/files/js/fileactions.js b/files/js/fileactions.js
index f95c5e84dc1f79b4534632d1ae1df4957a07dbcf..9e2688e82c13596ced255d54538e896fd0364a95 100644
--- a/files/js/fileactions.js
+++ b/files/js/fileactions.js
@@ -56,7 +56,7 @@ FileActions={
 		$('#fileList .action').remove();
 		var actions=FileActions.get(FileActions.getCurrentMimeType(),FileActions.getCurrentType());
 		var file=FileActions.getCurrentFile();
-		if($('tr[data-file="'+file+'"]').data('renaming')){
+		if($('tr').filterAttr('data-file',file).data('renaming')){
 			return;
 		}
 		var defaultAction=FileActions.getDefault(FileActions.getCurrentMimeType(),FileActions.getCurrentType());
diff --git a/files/js/filelist.js b/files/js/filelist.js
index 863a3385d15b5529f797f2ce1f5ee93f20e0464d..5740ece9716cdf893645de68a9f74bc09f68a0f3 100644
--- a/files/js/filelist.js
+++ b/files/js/filelist.js
@@ -4,7 +4,7 @@ FileList={
 	},
 	addFile:function(name,size,lastModified,loading){
 		var img=(loading)?OC.imagePath('core', 'loading.gif'):OC.imagePath('core', 'filetypes/file.png');
-		var html='<tr data-file="'+name+'" data-type="file" data-size="'+size+'">';
+		var html='<tr data-type="file" data-size="'+size+'">';
 		if(name.indexOf('.')!=-1){
 			var basename=name.substr(0,name.lastIndexOf('.'));
 			var extention=name.substr(name.lastIndexOf('.'));
@@ -29,16 +29,21 @@ FileList={
 		html+='<td class="filesize" title="'+humanFileSize(size)+'" style="color:rgb('+sizeColor+','+sizeColor+','+sizeColor+')">'+simpleSize+'</td>';
 		html+='<td class="date"><span class="modified" title="'+formatDate(lastModified)+'" style="color:rgb('+modifiedColor+','+modifiedColor+','+modifiedColor+')">'+relative_modified_date(lastModified.getTime() / 1000)+'</span></td>';
 		html+='</tr>';
-		FileList.insertElement(name,'file',$(html));
+		FileList.insertElement(name,'file',$(html).attr('data-file',name));
 		if(loading){
-			$('tr[data-file="'+name+'"]').data('loading',true);
+			$('tr').filterAttr('data-file',name).data('loading',true);
 		}else{
-			$('tr[data-file="'+name+'"] td.filename').draggable(dragOptions);
+			$('tr').filterAttr('data-file',name).find('td.filename').draggable(dragOptions);
 		}
 	},
 	addDir:function(name,size,lastModified){
-		var html='<tr data-file="'+name+'" data-type="dir" data-size="'+size+'">';
-		html+='<td class="filename" style="background-image:url('+OC.imagePath('core', 'filetypes/folder.png')+')"><input type="checkbox" /><a class="name" href="index.php?dir='+$('#dir').val()+'/'+name+'">'+name+'</a></td>';
+		html = $('<tr></tr>').attr({ "data-type": "dir", "data-size": size, "data-file": name});
+		td = $('<td></td>').attr({"class": "filename", "style": 'background-image:url('+OC.imagePath('core', 'filetypes/folder.png')+')' });
+		td.append('<input type="checkbox" />');
+		var link_elem = $('<a></a>').attr({ "class": "name", "href": "index.php?dir="+ encodeURIComponent($('#dir').val()+'/'+name) });
+		link_elem.append($('<span></span>').addClass('nametext').text(name));
+		td.append(link_elem);
+		html.append(td);
 		if(size!='Pending'){
 			simpleSize=simpleFileSize(size);
 		}else{
@@ -47,13 +52,15 @@ FileList={
 		sizeColor = Math.round(200-Math.pow((size/(1024*1024)),2));
 		lastModifiedTime=Math.round(lastModified.getTime() / 1000);
 		modifiedColor=Math.round((Math.round((new Date()).getTime() / 1000)-lastModifiedTime)/60/60/24*5);
-		html+='<td class="filesize" title="'+humanFileSize(size)+'" style="color:rgb('+sizeColor+','+sizeColor+','+sizeColor+')">'+simpleSize+'</td>';
-		html+='<td class="date"><span class="modified" title="'+formatDate(lastModified)+'" style="color:rgb('+modifiedColor+','+modifiedColor+','+modifiedColor+')">'+relative_modified_date(lastModified.getTime() / 1000)+'</span></td>';
-		html+='</tr>';
+		td = $('<td></td>').attr({ "class": "filesize", "title": humanFileSize(size), "style": 'color:rgb('+sizeColor+','+sizeColor+','+sizeColor+')'}).text(simpleSize);
+		html.append(td);
 		
-		FileList.insertElement(name,'dir',$(html));
-		$('tr[data-file="'+name+'"] td.filename').draggable(dragOptions);
-		$('tr[data-file="'+name+'"] td.filename').droppable(folderDropOptions);
+		td = $('<td></td>').attr({ "class": "date" });
+		td.append($('<span></span>').attr({ "class": "modified", "title": formatDate(lastModified), "style": 'color:rgb('+modifiedColor+','+modifiedColor+','+modifiedColor+')' }).text( relative_modified_date(lastModified.getTime() / 1000) ));
+		html.append(td);
+		FileList.insertElement(name,'dir',html);
+		$('tr').filterAttr('data-file',name).find('td.filename').draggable(dragOptions);
+		$('tr').filterAttr('data-file',name).find('td.filename').droppable(folderDropOptions);
 	},
 	refresh:function(data) {
 		result = jQuery.parseJSON(data.responseText);
@@ -64,8 +71,8 @@ FileList={
 		resetFileActionPanel();
 	},
 	remove:function(name){
-		$('tr[data-file="'+name+'"] td.filename').draggable('destroy');
-		$('tr[data-file="'+name+'"]').remove();
+		$('tr').filterAttr('data-file',name).find('td.filename').draggable('destroy');
+		$('tr').filterAttr('data-file',name).remove();
 		if($('tr[data-file]').length==0){
 			$('#emptyfolder').show();
 			$('.file_upload_filename').addClass('highlight');
@@ -101,7 +108,7 @@ FileList={
 		$('.file_upload_filename').removeClass('highlight');
 	},
 	loadingDone:function(name){
-		var tr=$('tr[data-file="'+name+'"]');
+		var tr=$('tr').filterAttr('data-file',name);
 		tr.data('loading',false);
 		var mime=tr.data('mime');
 		tr.attr('data-mime',mime);
@@ -111,13 +118,13 @@ FileList={
 		tr.find('td.filename').draggable(dragOptions);
 	},
 	isLoading:function(name){
-		return $('tr[data-file="'+name+'"]').data('loading');
+		return $('tr').filterAttr('data-file',name).data('loading');
 	},
 	rename:function(name){
-		var tr=$('tr[data-file="'+name+'"]');
+		var tr=$('tr').filterAttr('data-file',name);
 		tr.data('renaming',true);
 		var td=tr.children('td.filename');
-		var input=$('<input value="'+name+'" class="filename"></input>');
+		var input=$('<input class="filename"></input>').val(name);
 		var form=$('<form action="#"></form>')
 		form.append(input);
 		td.children('a.name').text('');
@@ -143,7 +150,7 @@ FileList={
 			}
 			$.ajax({
 				url: 'ajax/rename.php',
-				data: "dir="+$('#dir').val()+"&newname="+encodeURIComponent(newname)+"&file="+encodeURIComponent(name)
+				data: { dir : $('#dir').val(), newname: newname, file: name }
 			});
 		});
 		form.click(function(event){
@@ -165,9 +172,10 @@ FileList={
 			files=[files];
 		}
 		$.each(files,function(index,file){
-			$('tr[data-file="'+file+'"]').hide();
-			$('tr[data-file="'+file+'"]').find('input[type="checkbox"]').removeAttr('checked');
-			$('tr[data-file="'+file+'"]').removeClass('selected');
+			var files = $('tr').filterAttr('data-file',file);
+			files.hide();
+			files.find('input[type="checkbox"]').removeAttr('checked');
+			files.removeClass('selected');
 		});
 		procesSelection();
 		FileList.deleteCanceled=false;
@@ -208,7 +216,7 @@ $(document).ready(function(){
 		if($('#notification').data('deletefile'))
 		{
 			$.each(FileList.deleteFiles,function(index,file){
-				$('tr[data-file="'+file+'"]').show();
+				$('tr').filterAttr('data-file',file).show();
 // 			alert(file);
 			});
 			FileList.deleteCanceled=true;
diff --git a/files/js/files.js b/files/js/files.js
index 902c5e54934faa45b4cdc4946c406ad3b5f9a067..593eeafde8576791df6acd0276f8a09d944fc718 100644
--- a/files/js/files.js
+++ b/files/js/files.js
@@ -1,4 +1,9 @@
 $(document).ready(function() {
+	$('#fileList tr').each(function(){
+		//little hack to set unescape filenames in attribute
+		$(this).attr('data-file',unescape($(this).data('file')));
+	});
+		
 	if($('tr[data-file]').length==0){
 		$('.file_upload_filename').addClass('highlight');
 	}
@@ -185,9 +190,9 @@ $(document).ready(function() {
 					if(response[0] != undefined && response[0].status == 'success'){
 						for(var i=0;i<response.length;i++){
 							var file=response[i];
-							$('tr[data-file="'+file.name+'"]').data('mime',file.mime);
+							$('tr').filterAttr('data-file',file.name).data('mime',file.mime);
 							if(size=='Pending'){
-								$('tr[data-file='+file.name+'] td.filesize').text(file.size);
+								$('tr').filterAttr('data-file',file.name).find('td.filesize').text(file.size);
 							}
 							FileList.loadingDone(file.name);
 						}
@@ -343,7 +348,7 @@ var folderDropOptions={
 			url: 'ajax/move.php',
 		data: "dir="+dir+"&file="+file+'&target='+dir+'/'+target,
 		complete: function(data){boolOperationFinished(data, function(){
-			var el=$('#fileList tr[data-file="'+file+'"] td.filename');
+			var el = $('#fileList tr').filterAttr('data-file',file).find('td.filename');
 			el.draggable('destroy');
 			FileList.remove(file);
 		});}
diff --git a/files/templates/part.list.php b/files/templates/part.list.php
index 6bf5efe2fb2c6c0101bba8e29704da64e5e4aa9c..b0ef73c40621a6453ee7050e9350cd6deef529f7 100644
--- a/files/templates/part.list.php
+++ b/files/templates/part.list.php
@@ -5,7 +5,7 @@
 			$relative_modified_date = relative_modified_date($file['mtime']);
 			$relative_date_color = round((time()-$file['mtime'])/60/60/24*14); // the older the file, the brighter the shade of grey; days*14
 			if($relative_date_color>200) $relative_date_color = 200; ?>
-			<tr data-file="<?php echo $file['name'];?>" data-type="<?php echo ($file['type'] == 'dir')?'dir':'file'?>" data-mime="<?php echo $file['mime']?>" data-size='<?php echo $file['size'];?>'>
+			<tr data-file="<?php echo urlencode($file['name']);?>" data-type="<?php echo ($file['type'] == 'dir')?'dir':'file'?>" data-mime="<?php echo $file['mime']?>" data-size='<?php echo $file['size'];?>'>
 				<td class="filename svg" style="background-image:url(<?php if($file['type'] == 'dir') echo mimetype_icon('dir'); else echo mimetype_icon($file['mime']); ?>)">
 					<?php if(!isset($_['readonly']) || !$_['readonly']) { ?><input type="checkbox" /><?php } ?>
 					<a class="name" href="<?php if($file['type'] == 'dir') echo $_['baseURL'].$file['directory'].'/'.$file['name']; else echo $_['downloadURL'].urlencode($file['directory']).'/'.urlencode($file['name']); ?>" title="">
diff --git a/lib/filestorage/local.php b/lib/filestorage/local.php
index 01523b6b0b3647a6f65fb46b5343623dd1ba0988..9e29f85071a22d815928eb4bcdb58f44e8ef789e 100644
--- a/lib/filestorage/local.php
+++ b/lib/filestorage/local.php
@@ -84,6 +84,11 @@ class OC_Filestorage_Local extends OC_Filestorage{
 		return $return;
 	}
 	public function rename($path1,$path2){
+		if(! $this->file_exists($path1)){
+			OC_Log::write('core','unable to rename, file does not exists : '.$path1,OC_Log::ERROR);
+			return false;
+		}
+
 		if($return=rename($this->datadir.$path1,$this->datadir.$path2)){
 			$this->clearFolderSizeCache($path1);
 			$this->clearFolderSizeCache($path2);