fix merge conflicts

31 files changed, 585 insertions, 1242 deletions

diff --git a/apps/contacts/ajax/importaddressbook.php b/apps/contacts/ajax/importaddressbook.php
new file mode 100644
index 00000000000..5776c801a76
--- /dev/null
+++ b/apps/contacts/ajax/importaddressbook.php
@@ -0,0 +1,24 @@
+<?php
+/**
+ * Copyright (c) 2012 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+require_once('../../../lib/base.php');
+OC_JSON::checkLoggedIn();
+OC_Util::checkAppEnabled('contacts');
+$upload_max_filesize = OC_Helper::computerFileSize(ini_get('upload_max_filesize'));
+$post_max_size = OC_Helper::computerFileSize(ini_get('post_max_size'));
+$maxUploadFilesize = min($upload_max_filesize, $post_max_size);
+
+$freeSpace=OC_Filesystem::free_space('/');
+$freeSpace=max($freeSpace,0);
+$maxUploadFilesize = min($maxUploadFilesize ,$freeSpace);
+
+$tmpl = new OC_Template('contacts', 'part.importaddressbook');
+$tmpl->assign('uploadMaxFilesize', $maxUploadFilesize);
+$tmpl->assign('uploadMaxHumanFilesize', OC_Helper::humanFileSize($maxUploadFilesize));
+$tmpl->printpage();
+?>
diff --git a/apps/contacts/ajax/uploadimport.php b/apps/contacts/ajax/uploadimport.php
new file mode 100644
index 00000000000..ab680c8823f
--- /dev/null
+++ b/apps/contacts/ajax/uploadimport.php
@@ -0,0 +1,50 @@
+<?php
+/**
+ * ownCloud - Addressbook
+ *
+ * @author Thomas Tanghus
+ * @copyright 2012 Thomas Tanghus <thomas@tanghus.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+// Init owncloud
+require_once('../../../lib/base.php');
+
+// Check if we are a user
+OC_JSON::checkLoggedIn();
+OC_JSON::checkAppEnabled('contacts');
+function bailOut($msg) {
+	OC_JSON::error(array('data' => array('message' => $msg)));
+	OC_Log::write('contacts','ajax/uploadimport.php: '.$msg, OC_Log::ERROR);
+	exit();
+}
+function debug($msg) {
+	OC_Log::write('contacts','ajax/uploadimport.php: '.$msg, OC_Log::DEBUG);
+}
+
+// If it is a Drag'n'Drop transfer it's handled here.
+$fn = (isset($_SERVER['HTTP_X_FILE_NAME']) ? $_SERVER['HTTP_X_FILE_NAME'] : false);
+if($fn) {
+	$view = OC_App::getStorage('contacts');
+	$tmpfile = md5(rand());
+	if($view->file_put_contents('/'.$tmpfile, file_get_contents('php://input'))) {
+		debug($fn.' uploaded');
+		OC_JSON::success(array('data' => array('path'=>'', 'file'=>$tmpfile)));
+	} else {
+		bailOut(OC_Contacts_App::$l10n->t('Error uploading contacts to storage.'));
+	}
+}
+
+?>
diff --git a/apps/contacts/css/contacts.css b/apps/contacts/css/contacts.css
index 15f98cffbfb..2ea99a56a7b 100644
--- a/apps/contacts/css/contacts.css
+++ b/apps/contacts/css/contacts.css
@@ -33,8 +33,9 @@ dl.form { width: 100%; float: left; clear: right; margin: 0; padding: 0; }
 .form dd { display: table-cell; clear: right; float: left; margin: 0; padding: 0px; white-space: nowrap; vertical-align: text-bottom; }
 #address.form dt { min-width: 5em; }
 #address.form dl { min-width: 10em; }
-
 .loading {/*cursor: progress; */ cursor: wait; }
+.droptarget { margin: 0.5em; padding: 0.5em; border: thin solid #ccc; -moz-border-radius:.3em; -webkit-border-radius:.3em; border-radius:.3em; }
+.droppable { margin: 0.5em; padding: 0.5em; border: thin dashed #333; -moz-border-radius:.3em; -webkit-border-radius:.3em; border-radius:.3em; }
 .float { float: left; }
 .listactions { height: 1em; width:60px; float: left; clear: right; }
 .add,.edit,.delete,.mail, .globe, .upload, .cloud { cursor: pointer; width: 20px; height: 20px; margin: 0; float: left; position:relative; opacity: 0.1; }
@@ -51,6 +52,7 @@ dl.form { width: 100%; float: left; clear: right; margin: 0; padding: 0; }
 #identityprops { /*position: absolute; top: 2.5em; left: 0px;*/ }
 /*#contact_photo { max-width: 250px; }*/
 #contact_identity { min-width: 30em; }
+#note { min-width: 200px; }
 .contactsection { position: relative; float: left; /*max-width: 40em;*/ padding: 0.5em; height: auto; border: thin solid lightgray;/* -webkit-border-radius: 0.5em; -moz-border-radius: 0.5em; border-radius: 0.5em; background-color: #f8f8f8;*/ }
 
 .contactpart legend { width:auto; padding:.3em; border:1px solid #ddd; font-weight:bold; cursor:pointer; background:#f8f8f8; color:#555; text-shadow:#fff 0 1px 0; -moz-box-shadow:0 1px 1px #fff, 0 1px 1px #fff inset; -webkit-box-shadow:0 1px 1px #fff, 0 1px 1px #fff inset; -moz-border-radius:.5em; -webkit-border-radius:.5em; border-radius:.5em; }
@@ -90,5 +92,4 @@ input[type="checkbox"] { width: 20px; height: 20px; vertical-align: bottom; }
 .propertylist li > input[type="checkbox"],input[type="radio"] { float: left; clear: left; width: 20px; height: 20px; vertical-align: middle; }
 .propertylist li > select { float: left; max-width: 8em; }
 .typelist { float: left; max-width: 10em; } /* for multiselect */
-.addresslist { clear: both; }
-
+.addresslist { clear: both; }
\ No newline at end of file
diff --git a/apps/contacts/import.php b/apps/contacts/import.php
index b80021e00ea..ca2c1e1605d 100644
--- a/apps/contacts/import.php
+++ b/apps/contacts/import.php
@@ -17,8 +17,14 @@ if(is_writable('import_tmp/')){
 	fwrite($progressfopen, '10');
 	fclose($progressfopen);
 }
-$file = OC_Filesystem::file_get_contents($_POST['path'] . '/' . $_POST['file']);
-if($_POST['method'] == 'new'){
+$view = $file = null;
+if(isset($_POST['fstype']) && $_POST['fstype'] == 'OC_FilesystemView') {
+	$view = OC_App::getStorage('contacts');
+	$file = $view->file_get_contents('/' . $_POST['file']);
+} else {
+	$file = OC_Filesystem::file_get_contents($_POST['path'] . '/' . $_POST['file']);
+}
+if(isset($_POST['method']) && $_POST['method'] == 'new'){
 	$id = OC_Contacts_Addressbook::add(OC_User::getUser(), $_POST['addressbookname']);
 	OC_Contacts_Addressbook::setActive($id, 1);
 }else{
@@ -99,12 +105,16 @@ if(is_writable('import_tmp/')){
 if(count($parts) == 1){
 	$importready = array($file);
 }
+$imported = 0;
+$failed = 0;
 foreach($importready as $import){
 	$card = OC_VObject::parse($import);
 	if (!$card) {
+		$failed += 1;
 		OC_Log::write('contacts','Import: skipping card. Error parsing VCard: '.$import, OC_Log::ERROR);
 		continue; // Ditch cards that can't be parsed by Sabre.
 	}
+	$imported += 1;
 	OC_Contacts_VCard::add($id, $card);
 }
 //done the import
@@ -117,4 +127,9 @@ sleep(3);
 if(is_writable('import_tmp/')){
 	unlink($progressfile);
 }
-OC_JSON::success();
+if(isset($_POST['fstype']) && $_POST['fstype'] == 'OC_FilesystemView') {
+	if(!$view->unlink('/' . $_POST['file'])) {
+		OC_Log::write('contacts','Import: Error unlinking OC_FilesystemView ' . '/' . $_POST['file'], OC_Log::ERROR);
+	}
+}
+OC_JSON::success(array('data' => array('imported'=>$imported, 'failed'=>$failed)));
diff --git a/apps/contacts/js/contacts.js b/apps/contacts/js/contacts.js
index f684576b787..b94bf77c5ec 100644
--- a/apps/contacts/js/contacts.js
+++ b/apps/contacts/js/contacts.js
@@ -1263,7 +1263,8 @@ Contacts={
 							for(ptype in this.data.TEL[phone]['parameters'][param]) {
 								var pt = this.data.TEL[phone]['parameters'][param][ptype];
 								$('#phonelist li:last-child').find('select option').each(function(){
-									if ($(this).val().toUpperCase() == pt.toUpperCase()) {
+									//if ($(this).val().toUpperCase() == pt.toUpperCase()) {
+									if ($.inArray($(this).val().toUpperCase(), pt.toUpperCase().split(',')) > -1) {
 										$(this).attr('selected', 'selected');
 									}
 								});
@@ -1285,6 +1286,7 @@ Contacts={
 			},
 		},
 		Addressbooks:{
+			droptarget:undefined,
 			overview:function(){
 				if($('#chooseaddressbook_dialog').dialog('isOpen') == true){
 					$('#chooseaddressbook_dialog').dialog('moveToTop');
@@ -1317,14 +1319,13 @@ Contacts={
 				var tr = $(document.createElement('tr'))
 					.load(OC.filePath('contacts', 'ajax', 'addbook.php'));
 				$(object).closest('tr').after(tr).hide();
-				/* TODO: Shouldn't there be some kinda error checking here? */
 			},
 			editAddressbook:function(object, bookid){
 				var tr = $(document.createElement('tr'))
 					.load(OC.filePath('contacts', 'ajax', 'editaddressbook.php') + "?bookid="+bookid);
 				$(object).closest('tr').after(tr).hide();
 			},
-			deleteAddressbook:function(bookid){
+			deleteAddressbook:function(obj, bookid){
 				var check = confirm("Do you really want to delete this address book?");
 				if(check == false){
 					return false;
@@ -1332,9 +1333,10 @@ Contacts={
 					$.post(OC.filePath('contacts', 'ajax', 'deletebook.php'), { id: bookid},
 					  function(jsondata) {
 						if (jsondata.status == 'success'){
-							$('#chooseaddressbook_dialog').dialog('destroy').remove();
+							$(obj).closest('tr').remove();
+							//$('#chooseaddressbook_dialog').dialog('destroy').remove();
 							Contacts.UI.Contacts.update();
-							Contacts.UI.Addressbooks.overview();
+							//Contacts.UI.Addressbooks.overview();
 						} else {
 							OC.dialogs.alert(jsondata.data.message, t('contacts', 'Error'));
 							//alert('Error: ' + data.message);
@@ -1342,8 +1344,95 @@ Contacts={
 					  });
 				}
 			},
-			doImport:function(){
-				Contacts.UI.notImplemented();
+			loadImportHandlers:function() {
+				this.droptarget = $('#import_drop_target');
+				console.log($('#import_drop_target').html());
+				$(this.droptarget).bind('dragover',function(event){
+					$(event.target).addClass('droppable');
+					event.stopPropagation();
+					event.preventDefault();  
+				});
+				$(this.droptarget).bind('dragleave',function(event){
+					$(event.target).removeClass('droppable');
+				});
+				$(this.droptarget).bind('drop',function(event){
+					event.stopPropagation();
+					event.preventDefault();
+					console.log('drop');
+					$(event.target).removeClass('droppable');
+					$(event.target).html(t('contacts', 'Uploading...'));
+					Contacts.UI.loading(event.target, true);
+					$.fileUpload(event.originalEvent.dataTransfer.files);
+				});
+
+				$.fileUpload = function(files){
+					console.log(files + ', ' + files.length);
+					var file = files[0];
+					console.log('size: '+file.size+', type: '+file.type);
+					if(file.size > $('#max_upload').val()){
+						OC.dialogs.alert(t('contacts','The file you are trying to upload exceed the maximum size for file uploads on this server.'), t('contacts','Upload too large'));
+						$(Contacts.UI.Addressbooks.droptarget).html(t('contacts', 'Drop a VCF file to import contacts.'));
+						Contacts.UI.loading(Contacts.UI.Addressbooks.droptarget, false);
+						return;
+					}
+					if(file.type.indexOf('text') != 0) {
+						OC.dialogs.alert(t('contacts','You have dropped a file type that cannot be imported: ') + file.type, t('contacts','Wrong file type'));
+						$(Contacts.UI.Addressbooks.droptarget).html(t('contacts', 'Drop a VCF file to import contacts.'));
+						Contacts.UI.loading(Contacts.UI.Addressbooks.droptarget, false);
+						return;
+					}
+					var xhr = new XMLHttpRequest();
+
+					if (!xhr.upload) {
+						OC.dialogs.alert(t('contacts', 'Your browser doesn\'t support AJAX upload. Please upload the contacts file to ownCloud and import that way.'), t('contacts', 'Error'))
+					}
+					fileUpload = xhr.upload,
+					xhr.onreadystatechange = function() {
+						if (xhr.readyState == 4){
+							response = $.parseJSON(xhr.responseText);
+							if(response.status == 'success') {
+								if(xhr.status == 200) {
+									$(Contacts.UI.Addressbooks.droptarget).html(t('contacts', 'Importing...'));
+									Contacts.UI.loading(Contacts.UI.Addressbooks.droptarget, true);
+									Contacts.UI.Addressbooks.doImport(response.data.path, response.data.file);
+								} else {
+									$(Contacts.UI.Addressbooks.droptarget).html(t('contacts', 'Drop a VCF file to import contacts.'));
+									Contacts.UI.loading(Contacts.UI.Addressbooks.droptarget, false);
+									OC.dialogs.alert(xhr.status + ': ' + xhr.responseText, t('contacts', 'Error'));
+								}
+							} else {
+								OC.dialogs.alert(response.data.message, t('contacts', 'Error'));
+							}
+						}
+					};
+					xhr.open("POST", 'ajax/uploadimport.php?file='+encodeURIComponent(file.name), true);
+					xhr.setRequestHeader('Cache-Control', 'no-cache');
+					xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
+					xhr.setRequestHeader('X_FILE_NAME', encodeURIComponent(file.name));
+					xhr.setRequestHeader('X-File-Size', file.size);
+					xhr.setRequestHeader('Content-Type', file.type);
+					xhr.send(file);
+				}
+			},
+			importAddressbook:function(object){
+				var tr = $(document.createElement('tr'))
+					.load(OC.filePath('contacts', 'ajax', 'importaddressbook.php'));
+				$(object).closest('tr').after(tr).hide();
+			},
+			doImport:function(path, file){
+				var id = $('#importaddressbook_dialog').find('#book').val();
+				console.log('Selected book: ' + id);
+				$.post(OC.filePath('contacts', '', 'import.php'), { id: id, path: path, file: file, fstype: 'OC_FilesystemView' },
+					function(jsondata){
+						if(jsondata.status == 'success'){
+							Contacts.UI.Addressbooks.droptarget.html(t('contacts', 'Import done. Success/Failure: ')+jsondata.data.imported+'/'+jsondata.data.failed);
+							$('#chooseaddressbook_dialog').find('#close_button').val(t('contacts', 'OK'));
+							Contacts.UI.Contacts.update();
+						} else {
+							OC.dialogs.alert(jsondata.data.message, t('contacts', 'Error'));
+						}
+				});
+				Contacts.UI.loading(Contacts.UI.Addressbooks.droptarget, false);
 			},
 			submit:function(button, bookid){
 				var displayname = $("#displayname_"+bookid).val().trim();
@@ -1368,7 +1457,7 @@ Contacts={
 						} else {
 							OC.dialogs.alert(jsondata.data.message, t('contacts', 'Error'));
 						}
-					});
+				});
 			},
 			cancel:function(button, bookid){
 				$(button).closest('tr').prev().show().next().remove();
@@ -1385,7 +1474,6 @@ Contacts={
 					}
 					else{
 						OC.dialogs.alert(jsondata.data.message, t('contacts', 'Error'));
-						//alert(jsondata.data.message);
 					}
 				});
 				setTimeout(Contacts.UI.Contacts.lazyupdate, 500);
@@ -1507,13 +1595,13 @@ $(document).ready(function(){
 	});
 	$('#contacts_details_photo_wrapper').bind('dragover',function(event){
 		console.log('dragover');
-		$(event.target).css('background-color','red');
+		$(event.target).addClass('droppable');
 		event.stopPropagation();
 		event.preventDefault();  
 	});
 	$('#contacts_details_photo_wrapper').bind('dragleave',function(event){
 		console.log('dragleave');
-		$(event.target).css('background-color','white');
+		$(event.target).removeClass('droppable');
 		//event.stopPropagation();
 		//event.preventDefault();  
 	});
@@ -1521,7 +1609,7 @@ $(document).ready(function(){
 		event.stopPropagation();
 		event.preventDefault();
 		console.log('drop');
-		$(event.target).css('background-color','white')
+		$(event.target).removeClass('droppable');
 		$.fileUpload(event.originalEvent.dataTransfer.files);
 	});
 
@@ -1618,4 +1706,4 @@ $(document).ready(function() {
 	$('.ui-autocomplete-loading').css('background', 'url('+OC.filePath('core', 'img', 'loading.gif')+' right center no-repeat');
 	$('#contacts_details_photo').css('background', 'url('+OC.filePath('core', 'img', 'loading.gif')+' no-repeat center center');
 	$('#contacts_propertymenu_button').css('background', 'url('+OC.filePath('core', 'img/actions', 'add.svg')+') no-repeat center');
-});
\ No newline at end of file
+});
diff --git a/apps/contacts/lib/app.php b/apps/contacts/lib/app.php
index 475d2c8dc2e..2c2cc331ed7 100644
--- a/apps/contacts/lib/app.php
+++ b/apps/contacts/lib/app.php
@@ -149,6 +149,7 @@ class OC_Contacts_App {
 				'WORK'  =>  $l->t('Work'),
 				'TEXT'  =>  $l->t('Text'),
 				'VOICE' =>  $l->t('Voice'),
+				'MSG'   =>  $l->t('Message'),
 				'FAX'   =>  $l->t('Fax'),
 				'VIDEO' =>  $l->t('Video'),
 				'PAGER' =>  $l->t('Pager'),
diff --git a/apps/contacts/lib/vcard.php b/apps/contacts/lib/vcard.php
index 90b037f76ee..96fc8cf7121 100644
--- a/apps/contacts/lib/vcard.php
+++ b/apps/contacts/lib/vcard.php
@@ -141,10 +141,38 @@ class OC_Contacts_VCard{
 	}
 
 	/**
-	* @brief Tries to update imported VCards to adhere to rfc2426 (VERSION: 3.0)
+	* @brief Checks if a contact with the same UID already exist in the address book.
+	* @param $aid Address book ID.
+	* @param $uid UID (passed by reference).
+	* @returns true if the UID has been changed.
+	*/
+	protected static function trueUID($aid, &$uid) {
+		$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_cards WHERE addressbookid = ? AND uri = ?' );
+		$uri = $uid.'.vcf';
+		$result = $stmt->execute(array($aid,$uri));
+		if($result->numRows() > 0){
+			while(true) {
+				$tmpuid = substr(md5(rand().time()),0,10);
+				$uri = $tmpuid.'.vcf';
+				$result = $stmt->execute(array($aid,$uri));
+				if($result->numRows() > 0){
+					continue;
+				} else {
+					$uid = $tmpuid;
+					return true;
+				}
+			}
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	* @brief Tries to update imported VCards to adhere to rfc2426 (VERSION: 3.0) and add mandatory fields if missing.
+	* @param aid Address book id.
 	* @param vcard An OC_VObject of type VCARD (passed by reference).
 	*/
-	protected static function updateValuesFromAdd(&$vcard) { // any suggestions for a better method name? ;-)
+	protected static function updateValuesFromAdd($aid, &$vcard) { // any suggestions for a better method name? ;-)
 		$stringprops = array('N', 'FN', 'ORG', 'NICK', 'ADR', 'NOTE');
 		$typeprops = array('ADR', 'TEL', 'EMAIL');
 		$upgrade = false;
@@ -207,14 +235,19 @@ class OC_Contacts_VCard{
 		}
 		if(!$uid) {
 			$vcard->setUID();
+			$uid = $vcard->getAsString('UID');
 			OC_Log::write('contacts','OC_Contacts_VCard::updateValuesFromAdd. Added missing \'UID\' field: '.$uid,OC_Log::DEBUG);
 		}
+		if(self::trueUID($aid, $uid)) {
+			$vcard->setString('UID', $uid);
+		}
 		$vcard->setString('VERSION','3.0');
 		// Add product ID is missing.
 		$prodid = trim($vcard->getAsString('PRODID'));
 		if(!$prodid) {
 			$appinfo = OC_App::getAppInfo('contacts');
-			$prodid = '-//ownCloud//NONSGML '.$appinfo['name'].' '.$appinfo['version'].'//EN';
+			$appversion = OC_App::getAppVersion('contacts');
+			$prodid = '-//ownCloud//NONSGML '.$appinfo['name'].' '.$appversion.'//EN';
 			$vcard->setString('PRODID', $prodid);
 		}
 		$now = new DateTime;
@@ -236,7 +269,7 @@ class OC_Contacts_VCard{
 
 		OC_Contacts_App::loadCategoriesFromVCard($card);
 
-		self::updateValuesFromAdd($card);
+		self::updateValuesFromAdd($aid, $card);
 
 		$fn = $card->getAsString('FN');
 		if (empty($fn)) {
diff --git a/apps/contacts/templates/part.chooseaddressbook.php b/apps/contacts/templates/part.chooseaddressbook.php
index 90894220ef8..adfc8c15161 100644
--- a/apps/contacts/templates/part.chooseaddressbook.php
+++ b/apps/contacts/templates/part.chooseaddressbook.php
@@ -1,4 +1,4 @@
-<div id="chooseaddressbook_dialog" title="<?php echo $l->t("Choose active Address Books"); ?>">
+<div id="chooseaddressbook_dialog" title="<?php echo $l->t("Configure Address Books"); ?>">
 <table width="100%" style="border: 0;">
 <?php
 $option_addressbooks = OC_Contacts_Addressbook::all(OC_User::getUser());
@@ -14,6 +14,7 @@ for($i = 0; $i < count($option_addressbooks); $i++){
 <tr>
 	<td colspan="5" style="padding: 0.5em;">
 		<a class="button" href="#" onclick="Contacts.UI.Addressbooks.newAddressbook(this);"><?php echo $l->t('New Address Book') ?></a>
+		<a class="button" href="#" onclick="Contacts.UI.Addressbooks.importAddressbook(this);"><?php echo $l->t('Import from VCF') ?></a>
 	</td>
 </tr>
 <tr>
diff --git a/apps/contacts/templates/part.chooseaddressbook.rowfields.php b/apps/contacts/templates/part.chooseaddressbook.rowfields.php
index 8518c1acd13..20b67a4161e 100644
--- a/apps/contacts/templates/part.chooseaddressbook.rowfields.php
+++ b/apps/contacts/templates/part.chooseaddressbook.rowfields.php
@@ -2,4 +2,4 @@
 	// FIXME: Make this readable.
 	echo "<td width=\"20px\"><input id=\"active_" . $_['addressbook']["id"] . "\" type=\"checkbox\" onClick=\"Contacts.UI.Addressbooks.activation(this, " . $_['addressbook']["id"] . ")\"" . (OC_Contacts_Addressbook::isActive($_['addressbook']["id"]) ? ' checked="checked"' : '') . "></td>";
 	echo "<td><label for=\"active_" . $_['addressbook']["id"] . "\">" . htmlspecialchars($_['addressbook']["displayname"]) . "</label></td>";
-	echo "<td width=\"20px\"><a href=\"#\" onclick=\"Contacts.UI.showCardDAVUrl('" . OC_User::getUser() . "', '" . rawurlencode($_['addressbook']["uri"]) . "');\" title=\"" . $l->t("CardDav Link") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/public.svg\"></a></td><td width=\"20px\"><a href=\"export.php?bookid=" . $_['addressbook']["id"] . "\" title=\"" . $l->t("Download") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/download.svg\"></a></td><td width=\"20px\"><a  href=\"#\" title=\"" . $l->t("Edit") . "\" class=\"action\" onclick=\"Contacts.UI.Addressbooks.editAddressbook(this, " . $_['addressbook']["id"] . ");\"><img class=\"svg action\" src=\"../../core/img/actions/rename.svg\"></a></td><td width=\"20px\"><a href=\"#\" onclick=\"Contacts.UI.Addressbooks.deleteAddressbook('" . $_['addressbook']["id"] . "');\" title=\"" . $l->t("Delete") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/delete.svg\"></a></td>";
+	echo "<td width=\"20px\"><a href=\"#\" onclick=\"Contacts.UI.showCardDAVUrl('" . OC_User::getUser() . "', '" . rawurlencode($_['addressbook']["uri"]) . "');\" title=\"" . $l->t("CardDav Link") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/public.svg\"></a></td><td width=\"20px\"><a href=\"export.php?bookid=" . $_['addressbook']["id"] . "\" title=\"" . $l->t("Download") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/download.svg\"></a></td><td width=\"20px\"><a  href=\"#\" title=\"" . $l->t("Edit") . "\" class=\"action\" onclick=\"Contacts.UI.Addressbooks.editAddressbook(this, " . $_['addressbook']["id"] . ");\"><img class=\"svg action\" src=\"../../core/img/actions/rename.svg\"></a></td><td width=\"20px\"><a href=\"#\" onclick=\"Contacts.UI.Addressbooks.deleteAddressbook(this, '" . $_['addressbook']["id"] . "');\" title=\"" . $l->t("Delete") . "\" class=\"action\"><img  class=\"svg action\" src=\"../../core/img/actions/delete.svg\"></a></td>";
diff --git a/apps/contacts/templates/part.contact.php b/apps/contacts/templates/part.contact.php
index b90fa92c2c5..dec081a9b89 100644
--- a/apps/contacts/templates/part.contact.php
+++ b/apps/contacts/templates/part.contact.php
@@ -112,7 +112,7 @@ $id = isset($_['id']) ? $_['id'] : '';
 	<div id="contact_note" class="contactsection">
 	<form class="float" method="post">
 	<fieldset id="note" class="formfloat propertycontainer contactpart" data-element="NOTE">
-	<textarea class="contacts_property note" name="value" cols="40" rows="10" required="required" placeholder="<?php echo $l->t('Add notes here.'); ?>"></textarea>
+	<textarea class="contacts_property note" name="value" cols="60" rows="15" required="required" placeholder="<?php echo $l->t('Add notes here.'); ?>"></textarea>
 	</fieldset>
 	</form>
 	</div> <!-- contact_note -->
diff --git a/apps/files_versioning/ajax/gethead.php b/apps/files_versioning/ajax/gethead.php
deleted file mode 100644
index a0bfe77db51..00000000000
--- a/apps/files_versioning/ajax/gethead.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Craig Roberts craig0990@googlemail.com
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- */
- 
-
-OC_JSON::checkLoggedIn();
-// Fetch current commit (or HEAD if not yet set)
-$head = OC_Preferences::getValue(OC_User::getUser(), 'files_versioning', 'head', 'HEAD');
-OC_JSON::encodedPrint(array("head" => $head));
diff --git a/apps/files_versioning/ajax/sethead.php b/apps/files_versioning/ajax/sethead.php
deleted file mode 100644
index dd8b924b118..00000000000
--- a/apps/files_versioning/ajax/sethead.php
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Craig Roberts craig0990@googlemail.com
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- */
- 
-OC_JSON::checkLoggedIn();
-if(isset($_POST["file_versioning_head"])){
-	OC_Preferences::setValue(OC_User::getUser(), 'files_versioning', 'head', $_POST["file_versioning_head"]);
-	OC_JSON::success();
-}else{
-	OC_JSON::error();
-}
diff --git a/apps/files_versioning/appinfo/app.php b/apps/files_versioning/appinfo/app.php
deleted file mode 100644
index 24a8701dbb0..00000000000
--- a/apps/files_versioning/appinfo/app.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-
-// Include required files
-require_once('apps/files_versioning/versionstorage.php');
-require_once('apps/files_versioning/versionwrapper.php');
-// Register streamwrapper for versioned:// paths
-stream_wrapper_register('versioned', 'OC_VersionStreamWrapper');
-
-// Add an entry in the app list for versioning and backup
-OC_App::register( array(
-  'order' => 10,
-  'id' => 'files_versioning',
-  'name' => 'Versioning and Backup' ));
-
-// Include stylesheets for the settings page
-OC_Util::addStyle( 'files_versioning', 'settings' );
-OC_Util::addScript('files_versioning','settings');
-
-// Register a settings section in the Admin > Personal page
-OC_APP::registerPersonal('files_versioning','settings');
diff --git a/apps/files_versioning/appinfo/info.xml b/apps/files_versioning/appinfo/info.xml
deleted file mode 100644
index b9f56f674a0..00000000000
--- a/apps/files_versioning/appinfo/info.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0"?>
-<info>
-    <id>files_versioning</id>
-    <name>Versioning and Backup</name>
-    <licence>GPLv2</licence>
-    <author>Craig Roberts</author>
-    <require>3</require>
-    <description>Versions files using Git repositories, providing a simple backup facility. Currently in *beta* and explicitly without warranty of any kind.</description>
-	<types>
-		<filesystem/>
-	</types>
-</info>
diff --git a/apps/files_versioning/css/settings.css b/apps/files_versioning/css/settings.css
deleted file mode 100644
index afe2cd5508f..00000000000
--- a/apps/files_versioning/css/settings.css
+++ /dev/null
@@ -1,3 +0,0 @@
-#file_versioning_commit_chzn {
-    width: 15em;
-}
diff --git a/apps/files_versioning/js/settings.js b/apps/files_versioning/js/settings.js
deleted file mode 100644
index 8dd13bac033..00000000000
--- a/apps/files_versioning/js/settings.js
+++ /dev/null
@@ -1,25 +0,0 @@
-$(document).ready(function(){
-    $('#file_versioning_head').chosen();
-
-    $.getJSON(OC.filePath('files_versioning', 'ajax', 'gethead.php'), function(jsondata, status) {
-
-        if (jsondata.head == 'HEAD') {
-            // Most recent commit, do nothing
-        } else {
-            $("#file_versioning_head").val(jsondata.head);
-            // Trigger the chosen update call
-            // See http://harvesthq.github.com/chosen/
-            $("#file_versioning_head").trigger("liszt:updated");
-        }
-    });
-
-    $('#file_versioning_head').change(function() {
-
-        var data = $(this).serialize();
-        $.post( OC.filePath('files_versioning', 'ajax', 'sethead.php'), data, function(data){
-	        if(data == 'error'){
-		        console.log('Saving new HEAD failed');
-	        }
-        });
-    });
-});
diff --git a/apps/files_versioning/lib_granite.php b/apps/files_versioning/lib_granite.php
deleted file mode 100644
index 571e5cea637..00000000000
--- a/apps/files_versioning/lib_granite.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-require_once('granite/git/blob.php');
-require_once('granite/git/commit.php');
-require_once('granite/git/repository.php');
-require_once('granite/git/tag.php');
-require_once('granite/git/tree.php');
-require_once('granite/git/tree/node.php');
-require_once('granite/git/object/index.php');
-require_once('granite/git/object/raw.php');
-require_once('granite/git/object/loose.php');
-require_once('granite/git/object/packed.php');
diff --git a/apps/files_versioning/settings.php b/apps/files_versioning/settings.php
deleted file mode 100644
index 94af587a215..00000000000
--- a/apps/files_versioning/settings.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-// Get the full path to the repository folder (FIXME: hard-coded to 'Backup')
-$path = OC_Config::getValue('datadirectory', OC::$SERVERROOT.'/data')
-        . DIRECTORY_SEPARATOR
-        . OC_User::getUser()
-        . DIRECTORY_SEPARATOR
-        . 'files'
-        . DIRECTORY_SEPARATOR
-        . 'Backup'
-        . DIRECTORY_SEPARATOR
-        . '.git'
-        . DIRECTORY_SEPARATOR;
-
-$repository = new Granite\Git\Repository($path);
-
-$commits = array();
-// Fetch most recent 50 commits (FIXME - haven't tested this much)
-$commit = $repository->head();
-for ($i = 0; $i < 50; $i++) {
-    $commits[] = $commit;
-    $parents = $commit->parents();
-    if (count($parents) > 0) {
-        $parent = $parents[0];
-    } else {
-        break;
-    }
-
-    $commit = $repository->factory('commit', $parent);
-}
-
-$tmpl = new OC_Template( 'files_versioning', 'settings');
-$tmpl->assign('commits', $commits);
-return $tmpl->fetchPage();
diff --git a/apps/files_versioning/templates/settings.php b/apps/files_versioning/templates/settings.php
deleted file mode 100644
index 17f4cc7f77f..00000000000
--- a/apps/files_versioning/templates/settings.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<fieldset id="status_list" class="personalblock">
-	<strong>Versioning and Backup</strong><br>
-	<p><em>Please note: Backing up large files (around 16MB+) will cause your backup history to grow very large, very quickly.</em></p>
-	<label class="bold">Backup Folder</label>
-	<select name="file_versioning_head" id="file_versioning_head">
-	<?php
-        foreach ($_['commits'] as $commit):
-            echo '<option value="' . $commit->sha() . '">' . $commit->message() . '</option>';
-        endforeach;
-	?>
-	</select>
-</fieldset>
diff --git a/apps/files_versioning/versionstorage.php b/apps/files_versioning/versionstorage.php
deleted file mode 100644
index d083e623df9..00000000000
--- a/apps/files_versioning/versionstorage.php
+++ /dev/null
@@ -1,386 +0,0 @@
-<?php
-/**
- * ownCloud file storage implementation for Git repositories
- * @author Craig Roberts
- * @copyright 2012 Craig Roberts craig0990@googlemail.com
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
- *
- * You should have received a copy of the GNU Affero General Public
- * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-// Include Granite
-require_once('lib_granite.php');
-
-// Create a top-level 'Backup' directory if it does not already exist
-$user = OC_User::getUser();
-if (OC_Filesystem::$loaded and !OC_Filesystem::is_dir('/Backup')) {
-    OC_Filesystem::mkdir('/Backup');
-    OC_Preferences::setValue(OC_User::getUser(), 'files_versioning', 'head', 'HEAD');
-}
-
-// Generate the repository path (currently using 'full' repositories, as opposed to bare ones)
-$repo_path = DIRECTORY_SEPARATOR
-    . OC_User::getUser()
-    . DIRECTORY_SEPARATOR
-    . 'files'
-    . DIRECTORY_SEPARATOR
-    . 'Backup';
-
-// Mount the 'Backup' folder using the versioned storage provider below
-OC_Filesystem::mount('OC_Filestorage_Versioned', array('repo'=>$repo_path), $repo_path . DIRECTORY_SEPARATOR);
-
-class OC_Filestorage_Versioned extends OC_Filestorage {
-
-    /**
-     * Holds an instance of Granite\Git\Repository
-     */
-    protected $repo;
-
-    /**
-     * Constructs a new OC_Filestorage_Versioned instance, expects an associative
-     * array with a `repo` key set to the path of the repository's `.git` folder
-     *
-     * @param array $parameters An array containing the key `repo` pointing to the
-     *                             repository path.
-     */
-    public function __construct($parameters) {
-        // Get the full path to the repository folder
-        $path = OC_Config::getValue('datadirectory', OC::$SERVERROOT.'/data')
-                . $parameters['repo']
-                . DIRECTORY_SEPARATOR
-                . '.git'
-                . DIRECTORY_SEPARATOR;
-
-        try {
-            // Attempt to load the repository
-            $this->repo = new Granite\Git\Repository($path);
-        } catch (InvalidArgumentException $e) {
-            // $path is not a valid Git repository, we must create one
-            Granite\Git\Repository::init($path);
-
-            // Load the newly-initialised repository
-            $this->repo = new Granite\Git\Repository($path);
-
-            /**
-             * Create an initial commit with a README file
-             * FIXME: This functionality should be transferred to the Granite library
-             */
-            $blob = new Granite\Git\Blob($this->repo->path());
-            $blob->content('Your Backup directory is now ready for use.');
-
-            // Create a new tree to hold the README file
-            $tree = $this->repo->factory('tree');
-            // Create a tree node to represent the README blob
-            $tree_node = new Granite\Git\Tree\Node('README', '100644', $blob->sha());
-            $tree->nodes(array($tree_node->name() => $tree_node));
-
-            // Create an initial commit
-            $commit = new Granite\Git\Commit($this->repo->path());
-            $user_string = OC_User::getUser() . ' ' . time() . ' +0000';
-            $commit->author($user_string);
-            $commit->committer($user_string);
-            $commit->message('Initial commit');
-            $commit->tree($tree);
-
-            // Write it all to disk
-            $blob->write();
-            $tree->write();
-            $commit->write();
-
-            // Update the HEAD for the 'master' branch
-            $this->repo->head('master', $commit->sha());
-        }
-
-        // Update the class pointer to the HEAD
-        $head = OC_Preferences::getValue(OC_User::getUser(), 'files_versioning', 'head', 'HEAD');
-
-        // Load the most recent commit if the preference is not set
-        if ($head == 'HEAD') {
-            $this->head = $this->repo->head()->sha();
-        } else {
-            $this->head = $head;
-        }
-    }
-
-    public function mkdir($path) {
-        if (mkdir("versioned:/{$this->repo->path()}$path#{$this->head}")) {
-            $this->head = $this->repo->head()->sha();
-            OC_Preferences::setValue(OC_User::getUser(), 'files_versioning', 'head', $head);
-            return true;
-        }
-
-        return false;
-    }
-
-    public function rmdir($path) {
-
-    }
-
-    /**
-     * Returns a directory handle to the requested path, or FALSE on failure
-     *
-     * @param string $path The directory path to open
-     *
-     * @return boolean|resource A directory handle, or FALSE on failure
-     */
-    public function opendir($path) {
-        return opendir("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    /**
-     * Returns TRUE if $path is a directory, or FALSE if not
-     *
-     * @param string $path The path to check
-     *
-     * @return boolean
-     */
-    public function is_dir($path) {
-        return $this->filetype($path) == 'dir';
-    }
-
-    /**
-     * Returns TRUE if $path is a file, or FALSE if not
-     *
-     * @param string $path The path to check
-     *
-     * @return boolean
-     */
-    public function is_file($path) {
-        return $this->filetype($path) == 'file';
-    }
-
-    public function stat($path)
-	{
-	    return stat("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    /**
-     * Returns the strings 'dir' or 'file', depending on the type of $path
-     *
-     * @param string $path The path to check
-     *
-     * @return string Returns 'dir' if a directory, 'file' otherwise
-     */
-    public function filetype($path) {
-	    if ($path == "" || $path == "/") {
-	        return 'dir';
-        } else {
-            if (substr($path, -1) == '/') {
-                $path = substr($path, 0, -1);
-            }
-
-            $node = $this->tree_search($this->repo, $this->repo->factory('commit', $this->head)->tree(), $path);
-
-            // Does it exist, or is it new?
-            if ($node == null) {
-                // New file
-                return 'file';
-            } else {
-                // Is it a tree?
-                try {
-                    $this->repo->factory('tree', $node);
-                    return 'dir';
-                } catch (InvalidArgumentException $e) {
-                    // Nope, must be a blob
-                    return 'file';
-                }
-            }
-        }
-    }
-
-    public function filesize($path) {
-        return filesize("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    /**
-     * Returns a boolean value representing whether $path is readable
-     *
-     * @param string $path The path to check
-     *(
-     * @return boolean Whether or not the path is readable
-     */
-    public function is_readable($path) {
-        return true;
-    }
-
-    /**
-     * Returns a boolean value representing whether $path is writable
-     *
-     * @param string $path The path to check
-     *(
-     * @return boolean Whether or not the path is writable
-     */
-    public function is_writable($path) {
-
-        $head = OC_Preferences::getValue(OC_User::getUser(), 'files_versioning', 'head', 'HEAD');
-        if ($head !== 'HEAD' && $head !== $this->repo->head()->sha()) {
-            // Cannot modify previous commits
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Returns a boolean value representing whether $path exists
-     *
-     * @param string $path The path to check
-     *(
-     * @return boolean Whether or not the path exists
-     */
-    public function file_exists($path) {
-        return file_exists("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    /**
-     * Returns an integer value representing the inode change time
-     * (NOT IMPLEMENTED)
-     *
-     * @param string $path The path to check
-     *(
-     * @return int Timestamp of the last inode change
-     */
-    public function filectime($path) {
-        return -1;
-    }
-
-    /**
-     * Returns an integer value representing the file modification time
-     *
-     * @param string $path The path to check
-     *(
-     * @return int Timestamp of the last file modification
-     */
-    public function filemtime($path) {
-        return filemtime("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    public function file_get_contents($path) {
-        return file_get_contents("versioned:/{$this->repo->path()}$path#{$this->head}");
-    }
-
-    public function file_put_contents($path, $data) {
-        $success = file_put_contents("versioned:/{$this->repo->path()}$path#{$this->head}", $data);
-        if ($success !== false) {
-            // Update the HEAD in the preferences
-            OC_Preferences::setValue(OC_User::getUser(), 'files_versioning', 'head', $this->repo->head()->sha());
-            return $success;
-        }
-
-        return false;
-    }
-
-    public function unlink($path) {
-
-    }
-
-    public function rename($path1, $path2) {
-
-    }
-
-    public function copy($path1, $path2) {
-
-    }
-
-    public function fopen($path, $mode) {
-	    return fopen("versioned:/{$this->repo->path()}$path#{$this->head}", $mode);
-    }
-
-    public function getMimeType($path) {
-        if ($this->filetype($path) == 'dir') {
-	        return 'httpd/unix-directory';
-	    } elseif ($this->filesize($path) == 0) {
-	        // File's empty, returning text/plain allows opening in the web editor
-	        return 'text/plain';
-	    } else {
-            $finfo = new finfo(FILEINFO_MIME_TYPE);
-            /**
-             * We need to represent the repository path, the file path, and the
-             * revision, which can be simply achieved with a convention of using
-             * `.git` in the repository directory (bare or not) and the '#part'
-             * segment of a URL to specify the revision. For example
-             *
-             * versioned://var/www/myrepo.git/docs/README.md#HEAD ('bare' repo)
-             * versioned://var/www/myrepo/.git/docs/README.md#HEAD ('full' repo)
-             * versioned://var/www/myrepo/.git/docs/README.md#6a8f...8a54 ('full' repo and SHA-1 commit ID)
-             */
-            $mime = $finfo->buffer(file_get_contents("versioned:/{$this->repo->path()}$path#{$this->head}"));
-            return $mime;
-	    }
-    }
-
-    /**
-     * Generates a hash based on the file contents
-     *
-     * @param string $type The hashing algorithm to use (e.g. 'md5', 'sha256', etc.)
-     * @param string $path The file to be hashed
-     * @param boolean $raw Outputs binary data if true, lowercase hex digits otherwise
-     *
-     * @return string Hashed string representing the file contents
-     */
-    public function hash($type, $path, $raw) {
-        return hash($type, file_get_contents($path), $raw);
-    }
-
-    public function free_space($path) {
-    }
-
-    public function search($query) {
-
-    }
-
-    public function touch($path, $mtime=null) {
-
-    }
-
-
-    public function getLocalFile($path) {
-    }
-
-    /**
-     * Recursively searches a tree for a path, returning FALSE if is not found
-     * or an SHA-1 id if it is found.
-     *
-     * @param string  $repo  The repository containing the tree object
-     * @param string  $tree  The tree object to search
-     * @param string  $path  The path to search for (relative to the tree)
-     * @param int     $depth The depth of the current search (for recursion)
-     *
-     * @return string|boolean The SHA-1 id of the sub-tree
-     */
-    private function tree_search($repo, $tree, $path, $depth = 0)
-    {
-        $paths = array_values(explode(DIRECTORY_SEPARATOR, $path));
-
-        $current_path = $paths[$depth];
-
-        $nodes = $tree->nodes();
-        foreach ($nodes as $node) {
-            if ($node->name() == $current_path) {
-
-                if (count($paths)-1 == $depth) {
-                    // Stop, found it
-                    return $node->sha();
-                }
-
-                // Recurse if necessary
-                if ($node->isDirectory()) {
-                    $tree = $this->repo->factory('tree', $node->sha());
-                    return $this->tree_search($repo, $tree, $path, $depth + 1);
-                }
-            }
-        }
-
-        return false;
-    }
-
-}
diff --git a/apps/files_versioning/versionwrapper.php b/apps/files_versioning/versionwrapper.php
deleted file mode 100644
index b83a4fd3b22..00000000000
--- a/apps/files_versioning/versionwrapper.php
+++ /dev/null
@@ -1,686 +0,0 @@
-<?php
-
-final class OC_VersionStreamWrapper {
-
-    /**
-     * Determines whether or not to log debug messages with `OC_Log::write()`
-     */
-    private $debug = true;
-
-    /**
-     * The name of the ".empty" files created in new directories
-     */
-    const EMPTYFILE = '.empty';
-
-    /**
-     * Stores the current position for `readdir()` etc. calls
-     */
-    private $dir_position = 0;
-
-    /**
-     * Stores the current position for `fread()`, `fseek()` etc. calls
-     */
-    private $file_position = 0;
-
-    /**
-     * Stores the current directory tree for `readdir()` etc. directory traversal
-     */
-    private $tree;
-
-    /**
-     * Stores the current file for `fread()`, `fseek()`, etc. calls
-     */
-    private $blob;
-
-    /**
-     * Stores the current commit for `fstat()`, `stat()`, etc. calls
-     */
-    private $commit;
-
-    /**
-     * Stores the current path for `fwrite()`, `file_put_contents()` etc. calls
-     */
-    private $path;
-
-    /**
-     * Close directory handle
-     */
-    public function dir_closedir() {
-        unset($this->tree);
-        return true;
-    }
-
-    /**
-     * Open directory handle
-     */
-    public function dir_opendir($path, $options) {
-        // Parse the URL into a repository directory, file path and commit ID
-        list($this->repo, $repo_file, $this->commit) = $this->parse_url($path);
-
-        if ($repo_file == '' || $repo_file == '/') {
-            // Set the tree property for the future `readdir()` etc. calls
-            $this->tree = array_values($this->commit->tree()->nodes());
-            return true;
-        } elseif ($this->tree_search($this->repo, $this->commit->tree(), $repo_file) !== false) {
-            // Something exists at this path, is it a directory though?
-            try {
-                $tree = $this->repo->factory(
-                    'tree',
-                    $this->tree_search($this->repo, $this->commit->tree(), $repo_file)
-                );
-                $this->tree = array_values($tree->nodes());
-                return true;
-            } catch (InvalidArgumentException $e) {
-                // Trying to call `opendir()` on a file, return false below
-            }
-        }
-
-        // Unable to find the directory, return false
-        return false;
-    }
-
-    /**
-     * Read entry from directory handle
-     */
-    public function dir_readdir() {
-        return isset($this->tree[$this->dir_position])
-               ? $this->tree[$this->dir_position++]->name()
-               : false;
-    }
-
-    /**
-     * Rewind directory handle
-     */
-    public function dir_rewinddir() {
-        $this->dir_position = 0;
-    }
-
-    /**
-     * Create a directory
-     * Git doesn't track empty directories, so a ".empty" file is added instead
-     */
-    public function mkdir($path, $mode, $options) {
-        // Parse the URL into a repository directory, file path and commit ID
-        list($this->repo, $repo_file, $this->commit) = $this->parse_url($path);
-
-        // Create an empty file for Git
-        $empty = new Granite\Git\Blob($this->repo->path());
-        $empty->content('');
-        $empty->write();
-
-        if (dirname($repo_file) == '.') {
-            // Adding a new directory to the root tree
-            $tree = $this->repo->head()->tree();
-        } else {
-            $tree = $this->repo->factory('tree', $this->tree_search(
-                    $this->repo, $this->repo->head()->tree(), dirname($repo_file)
-                )
-            );
-        }
-
-        // Create our new tree, with our empty file
-        $dir = $this->repo->factory('tree');
-        $nodes = array();
-        $nodes[self::EMPTYFILE] = new Granite\Git\Tree\Node(self::EMPTYFILE, '100644', $empty->sha());
-        $dir->nodes($nodes);
-        $dir->write();
-
-        // Add our new tree to its parent
-        $nodes = $tree->nodes();
-        $nodes[basename($repo_file)] = new Granite\Git\Tree\Node(basename($repo_file), '040000', $dir->sha());
-        $tree->nodes($nodes);
-        $tree->write();
-
-        // We need to recursively update each parent tree, since they are all
-        // hashed and the changes will cascade back up the chain
-
-        // So, we're currently at the bottom-most directory
-        $current_dir = dirname($repo_file);
-        $previous_tree = $tree;
-
-        if ($current_dir !== '.') {
-            do {
-                // Determine the parent directory
-                $previous_dir = $current_dir;
-                $current_dir = dirname($current_dir);
-
-                $current_tree = $current_dir !== '.'
-                                ? $this->repo->factory(
-                                      'tree', $this->tree_search(
-                                          $this->repo,
-                                          $this->repo->head()->tree(),
-                                          $current_dir
-                                      )
-                                  )
-                                : $this->repo->head()->tree();
-
-                $current_nodes = $current_tree->nodes();
-                $current_nodes[basename($previous_dir)] = new Granite\Git\Tree\Node(
-                    basename($previous_dir), '040000', $previous_tree->sha()
-                );
-                $current_tree->nodes($current_nodes);
-                $current_tree->write();
-
-                $previous_tree = $current_tree;
-            } while ($current_dir !== '.');
-
-            $tree = $previous_tree;
-        }
-
-        // Create a new commit to represent this write
-        $commit = $this->repo->factory('commit');
-        $username = OC_User::getUser();
-        $user_string = $username . ' ' . time() . ' +0000';
-        $commit->author($user_string);
-        $commit->committer($user_string);
-        $commit->message("$username created the `$repo_file` directory, " . date('d F Y H:i', time()) . '.');
-        $commit->parents(array($this->repo->head()->sha()));
-        $commit->tree($tree);
-
-        // Write it to disk
-        $commit->write();
-
-        // Update the HEAD for the 'master' branch
-        $this->repo->head('master', $commit->sha());
-
-        return true;
-    }
-
-    /**
-     * Renames a file or directory
-     */
-    public function rename($path_from, $path_to) {
-
-    }
-
-    /**
-     * Removes a directory
-     */
-    public function rmdir($path, $options) {
-
-    }
-
-    /**
-     * Retrieve the underlaying resource (NOT IMPLEMENTED)
-     */
-    public function stream_cast($cast_as) {
-        return false;
-    }
-
-    /**
-     * Close a resource
-     */
-    public function stream_close() {
-        unset($this->blob);
-        return true;
-    }
-
-    /**
-     * Tests for end-of-file on a file pointer
-     */
-    public function stream_eof() {
-        return !($this->file_position < strlen($this->blob));
-    }
-
-    /**
-     * Flushes the output (NOT IMPLEMENTED)
-     */
-    public function stream_flush() {
-        return false;
-    }
-
-    /**
-     * Advisory file locking (NOT IMPLEMENTED)
-     */
-    public function stream_lock($operation) {
-        return false;
-    }
-
-    /**
-     * Change stream options (NOT IMPLEMENTED)
-     * Called in response to `chgrp()`, `chown()`, `chmod()` and `touch()`
-     */
-    public function stream_metadata($path, $option, $var) {
-        return false;
-    }
-
-    /**
-     * Opens file or URL
-     */
-    public function stream_open($path, $mode, $options, &$opened_path) {
-        // Store the path, so we can use it later in `stream_write()` if necessary
-        $this->path = $path;
-        // Parse the URL into a repository directory, file path and commit ID
-        list($this->repo, $repo_file, $this->commit) = $this->parse_url($path);
-
-        $file = $this->tree_search($this->repo, $this->commit->tree(), $repo_file);
-        if ($file !== false) {
-            try {
-                $this->blob = $this->repo->factory('blob', $file)->content();
-                return true;
-            } catch (InvalidArgumentException $e) {
-                // Trying to open a directory, return false below
-            }
-        } elseif ($mode !== 'r') {
-            // All other modes allow opening for reading and writing, clearly
-            // some 'write' files may not exist yet...
-            return true;
-        }
-
-        // File could not be found or is not actually a file
-        return false;
-    }
-
-    /**
-     * Read from stream
-     */
-    public function stream_read($count) {
-        // Fetch the remaining set of bytes
-        $bytes = substr($this->blob, $this->file_position, $count);
-
-        // If EOF or empty string, return false
-        if ($bytes == '' || $bytes == false) {
-            return false;
-        }
-
-        // If $count does not extend past EOF, add $count to stream offset
-        if ($this->file_position + $count < strlen($this->blob)) {
-            $this->file_position += $count;
-        } else {
-            // Otherwise return all remaining bytes
-            $this->file_position = strlen($this->blob);
-        }
-
-        return $bytes;
-    }
-
-    /**
-     * Seeks to specific location in a stream
-     */
-    public function stream_seek($offset, $whence = SEEK_SET) {
-        $new_offset = false;
-
-        switch ($whence)
-        {
-            case SEEK_SET:
-                $new_offset = $offset;
-            break;
-            case SEEK_CUR:
-                $new_offset = $this->file_position += $offset;
-            break;
-            case SEEK_END:
-                $new_offset = strlen($this->blob) + $offset;
-            break;
-        }
-
-        $this->file_position = $offset;
-
-        return ($new_offset !== false);
-    }
-
-    /**
-     * Change stream options (NOT IMPLEMENTED)
-     */
-    public function stream_set_option($option, $arg1, $arg2) {
-        return false;
-    }
-
-    /**
-     * Retrieve information about a file resource (NOT IMPLEMENTED)
-     */
-    public function stream_stat() {
-
-    }
-
-    /**
-     * Retrieve the current position of a stream
-     */
-    public function stream_tell() {
-        return $this->file_position;
-    }
-
-    /**
-     * Truncate stream
-     */
-    public function stream_truncate($new_size) {
-
-    }
-
-    /**
-     * Write to stream
-     * FIXME: Could use heavy refactoring
-     */
-    public function stream_write($data) {
-        /**
-         * FIXME: This also needs to be added to Granite, in the form of `add()`,
-         * `rm()` and `commit()` calls
-         */
-
-        // Parse the URL into a repository directory, file path and commit ID
-        list($this->repo, $repo_file, $this->commit) = $this->parse_url($this->path);
-
-        $node = $this->tree_search($this->repo, $this->commit->tree(), $repo_file);
-
-        if ($node !== false) {
-            // File already exists, attempting modification of existing tree
-            try {
-                $this->repo->factory('blob', $node);
-
-                // Create our new blob with the provided $data
-                $blob = $this->repo->factory('blob');
-                $blob->content($data);
-                $blob->write();
-
-                // We know the tree exists, so strip the filename from the path and
-                // find it...
-
-                if (dirname($repo_file) == '.' || dirname($repo_file) == '') {
-                    // Root directory
-                    $tree = $this->repo->head()->tree();
-                } else {
-                    // Sub-directory
-                    $tree = $this->repo->factory('tree', $this->tree_search(
-                            $this->repo,
-                            $this->repo->head()->tree(),
-                            dirname($repo_file)
-                        )
-                    );
-                }
-
-                // Replace the old blob with our newly modified one
-                $tree_nodes = $tree->nodes();
-                $tree_nodes[basename($repo_file)] = new Granite\Git\Tree\Node(
-                    basename($repo_file), '100644', $blob->sha()
-                );
-                $tree->nodes($tree_nodes);
-                $tree->write();
-
-                // We need to recursively update each parent tree, since they are all
-                // hashed and the changes will cascade back up the chain
-
-                // So, we're currently at the bottom-most directory
-                $current_dir = dirname($repo_file);
-                $previous_tree = $tree;
-
-                if ($current_dir !== '.') {
-                    do {
-                        // Determine the parent directory
-                        $previous_dir = $current_dir;
-                        $current_dir = dirname($current_dir);
-
-                        $current_tree = $current_dir !== '.'
-                                        ? $this->repo->factory(
-                                              'tree', $this->tree_search(
-                                                  $this->repo,
-                                                  $this->repo->head()->tree(),
-                                                  $current_dir
-                                              )
-                                          )
-                                        : $this->repo->head()->tree();
-
-                        $current_nodes = $current_tree->nodes();
-                        $current_nodes[basename($previous_dir)] = new Granite\Git\Tree\Node(
-                            basename($previous_dir), '040000', $previous_tree->sha()
-                        );
-                        $current_tree->nodes($current_nodes);
-                        $current_tree->write();
-
-                        $previous_tree = $current_tree;
-                    } while ($current_dir !== '.');
-                }
-
-                // Create a new commit to represent this write
-                $commit = $this->repo->factory('commit');
-                $username = OC_User::getUser();
-                $user_string = $username . ' ' . time() . ' +0000';
-                $commit->author($user_string);
-                $commit->committer($user_string);
-                $commit->message("$username modified the `$repo_file` file, " . date('d F Y H:i', time()) . '.');
-                $commit->parents(array($this->repo->head()->sha()));
-                $commit->tree($previous_tree);
-
-                // Write it to disk
-                $commit->write();
-
-                // Update the HEAD for the 'master' branch
-                $this->repo->head('master', $commit->sha());
-
-                // If we made it this far, write was successful - update the stream
-                // position and return the number of bytes written
-                $this->file_position += strlen($data);
-                return strlen($data);
-
-            } catch (InvalidArgumentException $e) {
-                // Attempting to write to a directory or other error, fail
-                return 0;
-            }
-        } else {
-            // File does not exist, needs to be created
-
-            // Create our new blob with the provided $data
-            $blob = $this->repo->factory('blob');
-            $blob->content($data);
-            $blob->write();
-
-            if (dirname($repo_file) == '.') {
-                // Trying to add a new file to the root tree, nice and easy
-                $tree = $this->repo->head()->tree();
-                $tree_nodes = $tree->nodes();
-                $tree_nodes[basename($repo_file)] = new Granite\Git\Tree\Node(
-                    basename($repo_file), '100644', $blob->sha()
-                );
-                $tree->nodes($tree_nodes);
-                $tree->write();
-            } else {
-                // Trying to add a new file to a subdirectory, try and find it
-                $tree = $this->repo->factory('tree', $this->tree_search(
-                        $this->repo, $this->repo->head()->tree(), dirname($repo_file)
-                    )
-                );
-
-                // Add the blob to the tree
-                $nodes = $tree->nodes();
-                $nodes[basename($repo_file)] =  new Granite\Git\Tree\Node(
-                    basename($repo_file), '100644', $blob->sha()
-                );
-                $tree->nodes($nodes);
-                $tree->write();
-
-                // We need to recursively update each parent tree, since they are all
-                // hashed and the changes will cascade back up the chain
-
-                // So, we're currently at the bottom-most directory
-                $current_dir = dirname($repo_file);
-                $previous_tree = $tree;
-
-                if ($current_dir !== '.') {
-                    do {
-                        // Determine the parent directory
-                        $previous_dir = $current_dir;
-                        $current_dir = dirname($current_dir);
-
-                        $current_tree = $current_dir !== '.'
-                                        ? $this->repo->factory(
-                                              'tree', $this->tree_search(
-                                                  $this->repo,
-                                                  $this->repo->head()->tree(),
-                                                  $current_dir
-                                              )
-                                          )
-                                        : $this->repo->head()->tree();
-
-                        $current_nodes = $current_tree->nodes();
-                        $current_nodes[basename($previous_dir)] = new Granite\Git\Tree\Node(
-                            basename($previous_dir), '040000', $previous_tree->sha()
-                        );
-                        $current_tree->nodes($current_nodes);
-                        $current_tree->write();
-
-                        $previous_tree = $current_tree;
-                    } while ($current_dir !== '.');
-
-                    $tree = $previous_tree;
-                }
-            }
-
-            // Create a new commit to represent this write
-            $commit = $this->repo->factory('commit');
-            $username = OC_User::getUser();
-            $user_string = $username . ' ' . time() . ' +0000';
-            $commit->author($user_string);
-            $commit->committer($user_string);
-            $commit->message("$username created the `$repo_file` file, " . date('d F Y H:i', time()) . '.');
-            $commit->parents(array($this->repo->head()->sha()));
-            $commit->tree($tree); // Top-level tree (NOT the newly modified tree)
-
-            // Write it to disk
-            $commit->write();
-
-            // Update the HEAD for the 'master' branch
-            $this->repo->head('master', $commit->sha());
-
-            // If we made it this far, write was successful - update the stream
-            // position and return the number of bytes written
-            $this->file_position += strlen($data);
-            return strlen($data);
-        }
-
-        // Write failed
-        return 0;
-    }
-
-    /**
-     * Delete a file
-     */
-    public function unlink($path) {
-
-    }
-
-    /**
-     * Retrieve information about a file
-     */
-    public function url_stat($path, $flags) {
-        // Parse the URL into a repository directory, file path and commit ID
-        list($this->repo, $repo_file, $this->commit) = $this->parse_url($path);
-
-        $node = $this->tree_search($this->repo, $this->commit->tree(), $repo_file);
-
-        if ($node == false && $this->commit->sha() == $this->repo->head()->sha()) {
-            // A new file - no information available
-            $size = 0;
-            $mtime = -1;
-        } else {
-
-            // Is it a directory?
-            try {
-                $this->repo->factory('tree', $node);
-                $size = 4096; // FIXME
-            } catch (InvalidArgumentException $e) {
-                // Must be a file
-                $size = strlen(file_get_contents($path));
-            }
-
-            // Parse the timestamp from the commit message
-	        preg_match('/[0-9]{10}+/', $this->commit->committer(), $matches);
-	        $mtime = $matches[0];
-        }
-
-	    $stat["dev"] = "";
-	    $stat["ino"] = "";
-	    $stat["mode"] = "";
-	    $stat["nlink"] = "";
-	    $stat["uid"] = "";
-	    $stat["gid"] = "";
-	    $stat["rdev"] = "";
-	    $stat["size"] = $size;
-	    $stat["atime"] = $mtime;
-	    $stat["mtime"] = $mtime;
-	    $stat["ctime"] = $mtime;
-	    $stat["blksize"] = "";
-	    $stat["blocks"] = "";
-
-	    return $stat;
-    }
-
-    /**
-     * Debug function for development purposes
-     */
-    private function debug($message, $level = OC_Log::DEBUG)
-    {
-        if ($this->debug) {
-            OC_Log::write('files_versioning', $message, $level);
-        }
-    }
-
-    /**
-     * Parses a URL of the form:
-     * `versioned://path/to/git/repository/.git/path/to/file#SHA-1-commit-id`
-     * FIXME: Will throw an InvalidArgumentException if $path is invaid
-     *
-     * @param string $path The path to parse
-     *
-     * @return array An array containing an instance of Granite\Git\Repository,
-     *               the file path, and an instance of Granite\Git\Commit
-     * @throws InvalidArgumentException If the repository cannot be loaded
-     */
-    private function parse_url($path)
-    {
-        preg_match('/\/([A-Za-z0-9\/]+\.git\/)([A-Za-z0-9\/\.\/]*)(#([A-Fa-f0-9]+))*/', $path, $matches);
-
-        // Load up the repo
-        $repo = new \Granite\Git\Repository($matches[1]);
-        // Parse the filename (stripping any trailing slashes)
-        $repo_file = $matches[2];
-        if (substr($repo_file, -1) == '/') {
-            $repo_file = substr($repo_file, 0, -1);
-        }
-
-        // Default to HEAD if no commit is provided
-        $repo_commit = isset($matches[4])
-                       ? $matches[4]
-                       : $repo->head()->sha();
-
-        // Load the relevant commit
-        $commit = $repo->factory('commit', $repo_commit);
-
-        return array($repo, $repo_file, $commit);
-    }
-
-    /**
-     * Recursively searches a tree for a path, returning FALSE if is not found
-     * or an SHA-1 id if it is found.
-     *
-     * @param string  $repo  The repository containing the tree object
-     * @param string  $tree  The tree object to search
-     * @param string  $path  The path to search for (relative to the tree)
-     * @param int     $depth The depth of the current search (for recursion)
-     *
-     * @return string|boolean The SHA-1 id of the sub-tree
-     */
-    private function tree_search($repo, $tree, $path, $depth = 0)
-    {
-        $paths = array_values(explode(DIRECTORY_SEPARATOR, $path));
-
-        $current_path = $paths[$depth];
-
-        $nodes = $tree->nodes();
-        foreach ($nodes as $node) {
-            if ($node->name() == $current_path) {
-
-                if (count($paths)-1 == $depth) {
-                    // Stop, found it
-                    return $node->sha();
-                }
-
-                // Recurse if necessary
-                if ($node->isDirectory()) {
-                    $tree = $this->repo->factory('tree', $node->sha());
-                    return $this->tree_search($repo, $tree, $path, $depth + 1);
-                }
-            }
-        }
-
-        return false;
-    }
-
-}
diff --git a/apps/files_versions/appinfo/app.php b/apps/files_versions/appinfo/app.php
new file mode 100644
index 00000000000..6e7a803252e
--- /dev/null
+++ b/apps/files_versions/appinfo/app.php
@@ -0,0 +1,19 @@
+<?php
+
+require_once('apps/files_versions/versions.php');
+
+// Add an entry in the app list
+OC_App::register( array(
+  'order' => 10,
+  'id' => 'files_versions',
+  'name' => 'Versioning' ));
+
+OC_APP::registerAdmin('files_versions', 'settings');
+
+// Listen to write signals
+OC_Hook::connect(OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, "OCA_Versions\Storage", "write_hook");
+
+
+
+
+?>
diff --git a/apps/files_versions/appinfo/info.xml b/apps/files_versions/appinfo/info.xml
new file mode 100644
index 00000000000..9936a2ad8b2
--- /dev/null
+++ b/apps/files_versions/appinfo/info.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<info>
+    <id>files_versions</id>
+    <name>Versions</name>
+    <licence>AGPL</licence>
+    <author>Frank Karlitschek</author>
+    <require>3</require>
+    <description>Versioning of files</description>
+	<types>
+		<filesystem/>
+	</types>
+</info>
diff --git a/apps/files_versioning/appinfo/version b/apps/files_versions/appinfo/version
index afaf360d37f..afaf360d37f 100644
--- a/apps/files_versioning/appinfo/version
+++ b/apps/files_versions/appinfo/version
diff --git a/apps/files_versions/css/versions.css b/apps/files_versions/css/versions.css
new file mode 100644
index 00000000000..139597f9cb0
--- /dev/null
+++ b/apps/files_versions/css/versions.css
@@ -0,0 +1,2 @@
+
+
diff --git a/apps/files_versions/history.php b/apps/files_versions/history.php
new file mode 100644
index 00000000000..6c7626ca4ed
--- /dev/null
+++ b/apps/files_versions/history.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * ownCloud - History page of the Versions App
+ *
+ * @author Frank Karlitschek
+ * @copyright 2011 Frank Karlitschek karlitschek@kde.org
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either 
+ * version 3 of the License, or any later version.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *  
+ * You should have received a copy of the GNU Lesser General Public 
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+require_once('../../lib/base.php');
+
+OC_Util::checkLoggedIn();
+
+if (isset($_GET['path'])) {
+
+	$path = $_GET['path'];
+	$path = strip_tags($path);
+
+	// roll back to old version if button clicked
+        if(isset($_GET['revert'])) {
+        	\OCA_Versions\Storage::rollback($path,$_GET['revert']);
+	}
+
+	// show the history only if there is something to show
+        if(OCA_Versions\Storage::isversioned($path)) {
+
+		$count=5; //show the newest revisions
+	        $versions=OCA_Versions\Storage::getversions($path,$count);
+
+		$tmpl = new OC_Template('files_versions', 'history', 'user');
+		$tmpl->assign('path', $path);
+		$tmpl->assign('versions', array_reverse($versions));
+		$tmpl->printPage();
+	}else{
+		$tmpl = new OC_Template('files_versions', 'history', 'user');
+		$tmpl->assign('path', $path);
+		$tmpl->assign('message', 'No old versions available');
+		$tmpl->printPage();
+	}
+}else{
+	$tmpl = new OC_Template('files_versions', 'history', 'user');
+	$tmpl->assign('message', 'No path specified');
+	$tmpl->printPage();
+}
+
+
+?>
diff --git a/apps/files_versions/js/versions.js b/apps/files_versions/js/versions.js
new file mode 100644
index 00000000000..139597f9cb0
--- /dev/null
+++ b/apps/files_versions/js/versions.js
@@ -0,0 +1,2 @@
+
+
diff --git a/apps/files_versions/settings.php b/apps/files_versions/settings.php
new file mode 100644
index 00000000000..eb154d3edd3
--- /dev/null
+++ b/apps/files_versions/settings.php
@@ -0,0 +1,10 @@
+<?php
+
+OC_Util::checkAdminUser();
+
+OC_Util::addScript( 'files_versions', 'versions' );
+
+$tmpl = new OC_Template( 'files_versions', 'settings');
+
+return $tmpl->fetchPage();
+?>
diff --git a/apps/files_versions/templates/history.php b/apps/files_versions/templates/history.php
new file mode 100644
index 00000000000..1b3de9ce77c
--- /dev/null
+++ b/apps/files_versions/templates/history.php
@@ -0,0 +1,18 @@
+<?php
+	if(isset($_['message'])){
+
+
+	        if(isset($_['path'])) echo('<strong>File: '.$_['path']).'</strong><br>';
+	        echo('<strong>'.$_['message']).'</strong><br>';
+
+	}else{
+
+	        echo('<strong>Versions of '.$_['path']).'</strong><br>';
+	        echo('<p><em>You can click on the revert button to revert to the specific verson.</em></p><br />');
+	        foreach ($_['versions'] as $v){
+			echo(' '.OC_Util::formatDate($v).' <a href="history.php?path='.urlencode($_['path']).'&revert='.$v.'" class="button">revert</a><br /><br />');
+		}
+
+	}
+
+?>
diff --git a/apps/files_versions/templates/settings.php b/apps/files_versions/templates/settings.php
new file mode 100644
index 00000000000..8c8def94429
--- /dev/null
+++ b/apps/files_versions/templates/settings.php
@@ -0,0 +1,7 @@
+<form id="external">
+	<fieldset class="personalblock">
+		<strong>Versions</strong><br />
+
+		Configuration goes here...
+	</fieldset>
+</form>
diff --git a/apps/files_versions/versions.php b/apps/files_versions/versions.php
new file mode 100644
index 00000000000..156a4f59c73
--- /dev/null
+++ b/apps/files_versions/versions.php
@@ -0,0 +1,216 @@
+<?php
+/**
+ * Copyright (c) 2012 Frank Karlitschek <frank@owncloud.org>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+/**
+ * Versions
+ *
+ * A class to handle the versioning of files.
+ */
+
+namespace OCA_Versions;
+
+class Storage {
+
+
+	// config.php configuration:
+	//   - files_versions
+	//   - files_versionsfolder
+	//   - files_versionsblacklist
+	//   - files_versionsmaxfilesize
+	//   - files_versionsinterval 
+	//   - files_versionmaxversions 
+	//
+	// todo:
+	//   - port to oc_filesystem to enable network transparency
+	//   - check if it works well together with encryption
+	//   - do configuration web interface
+	//   - implement expire all function. And find a place to call it ;-)
+	//   - add transparent compression. first test if it´s worth it.
+
+	const DEFAULTENABLED=true; 
+	const DEFAULTFOLDER='versions'; 
+	const DEFAULTBLACKLIST='avi mp3 mpg mp4'; 
+	const DEFAULTMAXFILESIZE=1048576; // 10MB 
+	const DEFAULTMININTERVAL=300; // 5 min
+	const DEFAULTMAXVERSIONS=50; 
+
+	/**
+	 * init the versioning and create the versions folder.
+	 */
+	public static function init() {
+		if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			// create versions folder
+			$foldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+			if(!is_dir($foldername)){
+				mkdir($foldername);
+			}
+		}
+	}
+
+
+	/**
+	 * listen to write event.
+	 */
+	public static function write_hook($params) {
+		if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			$path = $params[\OC_Filesystem::signal_param_path];
+			if($path<>'') Storage::store($path);
+		}
+	}
+
+
+
+	/**
+	 * store a new version of a file.
+	 */
+	public static function store($filename) {
+		if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			$versionsfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+			$filesfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/files';
+			Storage::init();
+
+			// check if filename is a directory
+			if(is_dir($filesfoldername.$filename)){
+				return false;
+			}
+
+			// check filetype blacklist
+			$blacklist=explode(' ',\OC_Config::getValue('files_versionsblacklist', Storage::DEFAULTBLACKLIST));
+			foreach($blacklist as $bl) {
+				$parts=explode('.', $filename);
+				$ext=end($parts);
+				if(strtolower($ext)==$bl) {
+					return false;
+				}
+			}
+			
+			// check filesize
+			if(filesize($filesfoldername.$filename)>\OC_Config::getValue('files_versionsmaxfilesize', Storage::DEFAULTMAXFILESIZE)){
+				return false;
+			}
+
+
+			// check mininterval
+			$matches=glob($versionsfoldername.$filename.'.v*');
+			sort($matches);
+			$parts=explode('.v',end($matches));
+			if((end($parts)+Storage::DEFAULTMININTERVAL)>time()){
+				return false;
+			}
+			
+
+			// create all parent folders
+			$info=pathinfo($filename);	
+			@mkdir($versionsfoldername.$info['dirname'],0700,true);	
+
+
+			// store a new version of a file
+			copy($filesfoldername.$filename,$versionsfoldername.$filename.'.v'.time());
+        
+			// expire old revisions
+			Storage::expire($filename);
+		}
+	}
+
+
+	/**
+	 * rollback to an old version of a file.
+	 */
+	public static function rollback($filename,$revision) {
+		if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			$versionsfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+			$filesfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/files';
+			// rollback
+			@copy($versionsfoldername.$filename.'.v'.$revision,$filesfoldername.$filename);
+		}
+	}
+
+	/**
+	 * check if old versions of a file exist.
+	 */
+	public static function isversioned($filename) {
+		if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			$versionsfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+
+			// check for old versions
+			$matches=glob($versionsfoldername.$filename.'.v*');
+			if(count($matches)>1){
+				return true;
+			}else{
+				return false;
+			}
+		}else{
+			return(false);
+		}
+	}
+
+
+        
+        /**
+         * get a list of old versions of a file.
+         */
+        public static function getversions($filename,$count=0) {
+                if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+			$versionsfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+			$versions=array();         
+ 
+	              // fetch for old versions
+			$matches=glob($versionsfoldername.$filename.'.v*');
+			sort($matches);
+			foreach($matches as $ma) {
+				$parts=explode('.v',$ma);
+				$versions[]=(end($parts));
+			}
+			
+			// only show the newest commits
+			if($count<>0 and (count($versions)>$count)) {
+				$versions=array_slice($versions,count($versions)-$count);
+			}
+	
+			return($versions);
+
+
+                }else{
+                        return(array());
+                }
+        }	
+
+
+        
+        /**
+         * expire old versions of a file.
+         */
+        public static function expire($filename) {
+                if(\OC_Config::getValue('files_versions', Storage::DEFAULTENABLED)=='true') {
+
+			$versionsfoldername=\OC_Config::getValue('datadirectory').'/'. \OC_User::getUser() .'/'.\OC_Config::getValue('files_versionsfolder', Storage::DEFAULTFOLDER);
+
+			// check for old versions
+			$matches=glob($versionsfoldername.$filename.'.v*');
+			if(count($matches)>\OC_Config::getValue('files_versionmaxversions', Storage::DEFAULTMAXVERSIONS)){
+				$numbertodelete=count($matches-\OC_Config::getValue('files_versionmaxversions', Storage::DEFAULTMAXVERSIONS));
+
+				// delete old versions of a file
+				$deleteitems=array_slice($matches,0,$numbertodelete);
+				foreach($deleteitems as $de){
+					unlink($versionsfoldername.$filename.'.v'.$de);
+				}
+			}
+                }
+        }
+
+        /**
+         * expire all old versions.
+         */
+        public static function expireall($filename) {
+		// todo this should go through all the versions directories and delete all the not needed files and not needed directories.
+		// useful to be included in a cleanup cronjob.
+        }
+
+
+}