Merge branch 'master' into fix-7307

Conflicts:
	core/js/router.js
	settings/js/admin.js

47 files changed, 480 insertions, 229 deletions

diff --git a/.scrutinizer.yml b/.scrutinizer.yml
new file mode 100644
index 00000000000..4473cf9056d
--- /dev/null
+++ b/.scrutinizer.yml
@@ -0,0 +1,23 @@
+filter:
+    excluded_paths:
+        - '3rdparty/*'
+        - 'apps/*/3rdparty/*'
+        - 'l10n/*'
+        - 'core/l10n/*'
+        - 'apps/*/l10n/*'
+        - 'lib/l10n/*'
+        - 'core/js/tests/lib/*.js'
+        - 'core/js/jquery-1.10.0.min.js'
+        - 'core/js/jquery-migrate-1.2.1.min.js'
+        - 'core/js/jquery-showpassword.js'
+        - 'core/js/jquery-tipsy.js'
+        - 'core/js/jquery.infieldlabel.js'
+        - 'core/js/jquery-ui-1.10.0.custom.js'
+        - 'core/js/jquery.inview.js'  
+        - 'core/js/jquery.placeholder.js'
+
+        
+imports:
+    - javascript
+    - php
+
diff --git a/3rdparty b/3rdparty
-Subproject c77c4ddbd4ae86a307d073647e76d602eafd0c6
+Subproject 184f0a59f87c590ee7e89ced401205a87f21395
diff --git a/apps/files/ajax/move.php b/apps/files/ajax/move.php
index 93063e52eb0..04a260265c2 100644
--- a/apps/files/ajax/move.php
+++ b/apps/files/ajax/move.php
@@ -18,7 +18,7 @@ if(\OC\Files\Filesystem::file_exists($target . '/' . $file)) {
 	exit;
 }
 
-if ($dir != '' || $file != 'Shared') {
+if ($target != '' || strtolower($file) != 'shared') {
 	$targetFile = \OC\Files\Filesystem::normalizePath($target . '/' . $file);
 	$sourceFile = \OC\Files\Filesystem::normalizePath($dir . '/' . $file);
 	if(\OC\Files\Filesystem::rename($sourceFile, $targetFile)) {
diff --git a/apps/files/js/file-upload.js b/apps/files/js/file-upload.js
index f962a7044a8..aa85644cefb 100644
--- a/apps/files/js/file-upload.js
+++ b/apps/files/js/file-upload.js
@@ -82,7 +82,7 @@ OC.Upload = {
 	 */
 	isProcessing:function() {
 		var count = 0;
-		
+
 		jQuery.each(this._uploads,function(i, data) {
 			if (data.state() === 'pending') {
 				count++;
@@ -208,13 +208,13 @@ $(document).ready(function() {
 			add: function(e, data) {
 				OC.Upload.log('add', e, data);
 				var that = $(this);
-			
+
 				// we need to collect all data upload objects before starting the upload so we can check their existence
 				// and set individual conflict actions. unfortunately there is only one variable that we can use to identify
 				// the selection a data upload is part of, so we have to collect them in data.originalFiles
 				// turning singleFileUploads off is not an option because we want to gracefully handle server errors like
 				// already exists
-			
+
 				// create a container where we can store the data objects
 				if ( ! data.originalFiles.selection ) {
 					// initialize selection and remember number of files to upload
@@ -225,34 +225,34 @@ $(document).ready(function() {
 					};
 				}
 				var selection = data.originalFiles.selection;
-			
+
 				// add uploads
 				if ( selection.uploads.length < selection.filesToUpload ) {
 					// remember upload
 					selection.uploads.push(data);
 				}
-			
+
 				//examine file
 				var file = data.files[0];
 				try {
 					// FIXME: not so elegant... need to refactor that method to return a value
-					Files.isFileNameValid(file.name);
+					Files.isFileNameValid(file.name, FileList.getCurrentDirectory());
 				}
 				catch (errorMessage) {
 					data.textStatus = 'invalidcharacters';
 					data.errorThrown = errorMessage;
 				}
-			
+
 				if (file.type === '' && file.size === 4096) {
 					data.textStatus = 'dirorzero';
 					data.errorThrown = t('files', 'Unable to upload {filename} as it is a directory or has 0 bytes',
 						{filename: file.name}
 					);
 				}
-			
+
 				// add size
 				selection.totalBytes += file.size;
-			
+
 				// check PHP upload limit
 				if (selection.totalBytes > $('#upload_limit').val()) {
 					data.textStatus = 'sizeexceedlimit';
@@ -270,7 +270,7 @@ $(document).ready(function() {
 						'size2': humanFileSize($('#free_space').val())
 					});
 				}
-			
+
 				// end upload for whole selection on error
 				if (data.errorThrown) {
 					// trigger fileupload fail
@@ -281,12 +281,12 @@ $(document).ready(function() {
 
 				// check existing files when all is collected
 				if ( selection.uploads.length >= selection.filesToUpload ) {
-				
+
 					//remove our selection hack:
 					delete data.originalFiles.selection;
 
 					var callbacks = {
-					
+
 						onNoConflicts: function (selection) {
 							$.each(selection.uploads, function(i, upload) {
 								upload.submit();
@@ -309,7 +309,7 @@ $(document).ready(function() {
 					};
 
 					OC.Upload.checkExistingFiles(selection, callbacks);
-				
+
 				}
 
 				return true; // continue adding files
@@ -439,7 +439,7 @@ $(document).ready(function() {
 			});
 			fileupload.on('fileuploadstop', function(e, data) {
 				OC.Upload.log('progress handle fileuploadstop', e, data);
-				
+
 				$('#uploadprogresswrapper input.stop').fadeOut();
 				$('#uploadprogressbar').fadeOut();
 			    Files.updateStorageStatistics();
@@ -531,7 +531,7 @@ $(document).ready(function() {
 		if ($(this).children('p').length === 0) {
 			return;
 		}
-		
+
 		$('#new .error').tipsy('hide');
 
 		$('#new li').each(function(i,element) {
@@ -545,7 +545,7 @@ $(document).ready(function() {
 		var text=$(this).children('p').text();
 		$(this).data('text',text);
 		$(this).children('p').remove();
-		
+
 		// add input field
 		var form = $('<form></form>');
 		var input = $('<input type="text">');
@@ -562,7 +562,7 @@ $(document).ready(function() {
 				throw t('files', 'URL cannot be empty');
 			} else if (type !== 'web' && !Files.isFileNameValid(filename)) {
 				// Files.isFileNameValid(filename) throws an exception itself
-			} else if ($('#dir').val() === '/' && filename === 'Shared') {
+			} else if (FileList.getCurrentDirectory() === '/' && filename.toLowerCase() === 'shared') {
 				throw t('files', 'In the home folder \'Shared\' is a reserved filename');
 			} else if (FileList.inList(filename)) {
 				throw t('files', '{new_name} already exists', {new_name: filename});
diff --git a/apps/files/js/filelist.js b/apps/files/js/filelist.js
index d6a4ae99764..503bf681139 100644
--- a/apps/files/js/filelist.js
+++ b/apps/files/js/filelist.js
@@ -421,15 +421,12 @@ window.FileList={
 			len = input.val().length;
 		}
 		input.selectRange(0, len);
-
 		var checkInput = function () {
 			var filename = input.val();
 			if (filename !== oldname) {
-				if (!Files.isFileNameValid(filename)) {
-					// Files.isFileNameValid(filename) throws an exception itself
-				} else if($('#dir').val() === '/' && filename === 'Shared') {
-					throw t('files','In the home folder \'Shared\' is a reserved filename');
-				} else if (FileList.inList(filename)) {
+				// Files.isFileNameValid(filename) throws an exception itself
+				Files.isFileNameValid(filename, FileList.getCurrentDirectory());
+				if (FileList.inList(filename)) {
 					throw t('files', '{new_name} already exists', {new_name: filename});
 				}
 			}
@@ -1158,9 +1155,9 @@ $(document).ready(function() {
 			// need to initially switch the dir to the one from the hash (IE8)
 			FileList.changeDirectory(parseCurrentDirFromUrl(), false, true);
 		}
-	}
 
-	FileList.setCurrentDir(parseCurrentDirFromUrl(), false);
+		FileList.setCurrentDir(parseCurrentDirFromUrl(), false);
+	}
 
 	FileList.createFileSummary();
 });
diff --git a/apps/files/js/files.js b/apps/files/js/files.js
index c93862e85d8..1186a72a44f 100644
--- a/apps/files/js/files.js
+++ b/apps/files/js/files.js
@@ -87,9 +87,12 @@ var Files = {
 	 * Throws a string exception with an error message if
 	 * the file name is not valid
 	 */
-	isFileNameValid: function (name) {
+	isFileNameValid: function (name, root) {
 		var trimmedName = name.trim();
-		if (trimmedName === '.' || trimmedName === '..') {
+		if (trimmedName === '.'
+				|| trimmedName === '..'
+				|| (root === '/' &&  trimmedName.toLowerCase() === 'shared'))
+		{
 			throw t('files', '"{name}" is an invalid file name.', {name: name});
 		} else if (trimmedName.length === 0) {
 			throw t('files', 'File name cannot be empty.');
diff --git a/apps/files/templates/part.list.php b/apps/files/templates/part.list.php
index f4fb96a7a7c..8a7a1e370eb 100644
--- a/apps/files/templates/part.list.php
+++ b/apps/files/templates/part.list.php
@@ -17,7 +17,13 @@ $totalsize = 0; ?>
 		data-mime="<?php p($file['mimetype'])?>"
 		data-size="<?php p($file['size']);?>"
 		data-etag="<?php p($file['etag']);?>"
-		data-permissions="<?php p($file['permissions']); ?>">
+		data-permissions="<?php p($file['permissions']); ?>"
+
+		<?php if(isset($file['displayname_owner'])): ?>
+			data-share-owner="<?php p($file['displayname_owner']) ?>"
+		<?php endif; ?>
+		>
+
 		<?php if(isset($file['isPreviewAvailable']) and $file['isPreviewAvailable']): ?>
 		<td class="filename svg preview-icon"
 		<?php else: ?>
@@ -34,17 +40,15 @@ $totalsize = 0; ?>
 				<span class="nametext">
 					<?php print_unescaped(htmlspecialchars($file['name']));?>
 				</span>
+				<span class="uploadtext" currentUploads="0">
+				</span>
+			</a>
 		<?php else: ?>
 			<a class="name" href="<?php p(rtrim($_['downloadURL'],'/').'/'.trim($directory,'/').'/'.$name); ?>">
 				<label class="filetext" title="" for="select-<?php p($file['fileid']); ?>"></label>
 				<span class="nametext"><?php print_unescaped(htmlspecialchars($file['basename']));?><span class='extension'><?php p($file['extension']);?></span></span>
 			</a>
 		<?php endif; ?>
-			<?php if($file['type'] == 'dir'):?>
-				<span class="uploadtext" currentUploads="0">
-				</span>
-			<?php endif;?>
-			</a>
 		</td>
 		<td class="filesize"
 			style="color:rgb(<?php p($simple_size_color.','.$simple_size_color.','.$simple_size_color) ?>)">
diff --git a/apps/files/tests/js/filesSpec.js b/apps/files/tests/js/filesSpec.js
index 018c8ef0f3c..95bf87e03ec 100644
--- a/apps/files/tests/js/filesSpec.js
+++ b/apps/files/tests/js/filesSpec.js
@@ -48,6 +48,41 @@ describe('Files tests', function() {
 				expect(error).toEqual(false);
 			}
 		});
+		it('Validates correct file names do not create Shared folder in root', function() {
+			// create shared file in subfolder
+			var error = false;
+			try {
+				expect(Files.isFileNameValid('shared', '/foo')).toEqual(true);
+				expect(Files.isFileNameValid('Shared', '/foo')).toEqual(true);
+			}
+			catch (e) {
+				error = e;
+			}
+			expect(error).toEqual(false);
+
+			// create shared file in root
+			var threwException = false;
+			try {
+				Files.isFileNameValid('Shared', '/');
+				console.error('Invalid file name not detected');
+			}
+			catch (e) {
+				threwException = true;
+			}
+			expect(threwException).toEqual(true);
+
+			// create shared file in root
+			var threwException = false;
+			try {
+				Files.isFileNameValid('shared', '/');
+				console.error('Invalid file name not detected');
+			}
+			catch (e) {
+				threwException = true;
+			}
+			expect(threwException).toEqual(true);
+
+		});
 		it('Detects invalid file names', function() {
 			var fileNames = [
 				'',
diff --git a/apps/files_encryption/lib/util.php b/apps/files_encryption/lib/util.php
index 6bf69cd8ee1..3db5a423478 100644
--- a/apps/files_encryption/lib/util.php
+++ b/apps/files_encryption/lib/util.php
@@ -135,7 +135,6 @@ class Util {
 		// Set directories to check / create
 		$setUpDirs = array(
 			$this->userDir,
-			$this->userFilesDir,
 			$this->publicKeyDir,
 			$this->encryptionDir,
 			$this->keyfilesPath,
diff --git a/apps/files_external/js/settings.js b/apps/files_external/js/settings.js
index 895f97bd2c3..cd2a3103eb7 100644
--- a/apps/files_external/js/settings.js
+++ b/apps/files_external/js/settings.js
@@ -264,7 +264,7 @@ $(document).ready(function() {
 		OC.MountConfig.saveStorage($(this).parent().parent());
 	});
 
-    $('#sslCertificate').on('click', 'td.remove>img', function() {
+	$('#sslCertificate').on('click', 'td.remove>img', function() {
 		var $tr = $(this).parent().parent();
 		var row = this.parentNode.parentNode;
 		$.post(OC.filePath('files_external', 'ajax', 'removeRootCertificate.php'), {cert: row.id});
@@ -302,13 +302,23 @@ $(document).ready(function() {
 	});
 
 	$('#allowUserMounting').bind('change', function() {
+		OC.msg.startSaving('#userMountingMsg');
 		if (this.checked) {
 			OC.AppConfig.setValue('files_external', 'allow_user_mounting', 'yes');
+			$('#userMountingBackups').removeClass('hidden');
 		} else {
 			OC.AppConfig.setValue('files_external', 'allow_user_mounting', 'no');
+			$('#userMountingBackups').addClass('hidden');
 		}
+		OC.msg.finishedSaving('#userMountingMsg', {status: 'success', data: {message: t('settings', 'Saved')}});
 	});
 
+	$('input[name="allowUserMountingBackends\\[\\]"]').bind('change', function() {
+		OC.msg.startSaving('#userMountingMsg');
+		var user_mounting_backends = $('input[name="allowUserMountingBackends\\[\\]"]:checked').map(function(){return $(this).val();}).get();
+		OC.AppConfig.setValue('files_external', 'user_mounting_backends', user_mounting_backends.join());
+		OC.msg.finishedSaving('#userMountingMsg', {status: 'success', data: {message: t('settings', 'Saved')}});
+	});
 });
 
 })();
diff --git a/apps/files_external/lib/config.php b/apps/files_external/lib/config.php
index 43275d36c06..2767076eefa 100755
--- a/apps/files_external/lib/config.php
+++ b/apps/files_external/lib/config.php
@@ -45,7 +45,7 @@ class OC_Mount_Config {
 					'datadir' => 'Location'));
 
 		$backends['\OC\Files\Storage\AmazonS3']=array(
-			'backend' => 'Amazon S3',
+			'backend' => 'Amazon S3 and compliant',
 			'configuration' => array(
 				'key' => 'Access Key',
 				'secret' => '*Secret Key',
@@ -156,6 +156,35 @@ class OC_Mount_Config {
 	}
 
 	/**
+	* Get details on each of the external storage backends, used for the mount config UI
+	* Some backends are not available as a personal backend, f.e. Local and such that have
+	* been disabled by the admin.
+	*
+	* If a custom UI is needed, add the key 'custom' and a javascript file with that name will be loaded
+	* If the configuration parameter should be secret, add a '*' to the beginning of the value
+	* If the configuration parameter is a boolean, add a '!' to the beginning of the value
+	* If the configuration parameter is optional, add a '&' to the beginning of the value
+	* If the configuration parameter is hidden, add a '#' to the beginning of the value
+	* @return array
+	*/
+	public static function getPersonalBackends() {
+
+		$backends = self::getBackends();
+
+		// Remove local storage and other disabled storages
+		unset($backends['\OC\Files\Storage\Local']);
+
+		$allowed_backends = explode(',', OCP\Config::getAppValue('files_external', 'user_mounting_backends', ''));
+		foreach ($backends as $backend => $null) {
+			if (!in_array($backend, $allowed_backends)) {
+				unset($backends[$backend]);
+			}
+		}
+
+		return $backends;
+	}
+
+	/**
 	* Get the system mount points
 	* The returned array is not in the same format as getUserMountPoints()
 	* @return array
@@ -287,11 +316,12 @@ class OC_Mount_Config {
 		if (!isset($backends[$class])) {
 			// invalid backend
 			return false;
-		}	
+		}
 		if ($isPersonal) {
 			// Verify that the mount point applies for the current user
-			// Prevent non-admin users from mounting local storage
-			if ($applicable !== OCP\User::getUser() || strtolower($class) === '\oc\files\storage\local') {
+			// Prevent non-admin users from mounting local storage and other disabled backends
+			$allowed_backends = self::getPersonalBackends();
+			if ($applicable != OCP\User::getUser() || !in_array($class, $allowed_backends)) {
 				return false;
 			}
 			$mountPoint = '/'.$applicable.'/files/'.ltrim($mountPoint, '/');
@@ -446,7 +476,7 @@ class OC_Mount_Config {
 	 */
 	public static function checksmbclient() {
 		if(function_exists('shell_exec')) {
-			$output=shell_exec('which smbclient 2> /dev/null');
+			$output=shell_exec('command -v smbclient 2> /dev/null');
 			return !empty($output);
 		}else{
 			return false;
diff --git a/apps/files_external/personal.php b/apps/files_external/personal.php
index 90f5e159535..90d7afed28b 100755
--- a/apps/files_external/personal.php
+++ b/apps/files_external/personal.php
@@ -22,9 +22,8 @@
 
 OCP\Util::addScript('files_external', 'settings');
 OCP\Util::addStyle('files_external', 'settings');
-$backends = OC_Mount_Config::getBackends();
-// Remove local storage
-unset($backends['\OC\Files\Storage\Local']);
+$backends = OC_Mount_Config::getPersonalBackends();
+
 $tmpl = new OCP\Template('files_external', 'settings');
 $tmpl->assign('isAdminPage', false);
 $tmpl->assign('mounts', OC_Mount_Config::getPersonalMountPoints());
diff --git a/apps/files_external/settings.php b/apps/files_external/settings.php
index 31183409e39..5b62b542200 100644
--- a/apps/files_external/settings.php
+++ b/apps/files_external/settings.php
@@ -26,10 +26,26 @@ OCP\Util::addScript('files_external', 'settings');
 OCP\Util::addscript('3rdparty', 'chosen/chosen.jquery.min');
 OCP\Util::addStyle('files_external', 'settings');
 OCP\Util::addStyle('3rdparty', 'chosen/chosen');
+
+$backends = OC_Mount_Config::getBackends();
+$personal_backends = array();
+$enabled_backends = explode(',', OCP\Config::getAppValue('files_external', 'user_mounting_backends', ''));
+foreach ($backends as $class => $backend)
+{
+	if ($class != '\OC\Files\Storage\Local')
+	{
+		$personal_backends[$class] = array(
+			'backend'	=> $backend['backend'],
+			'enabled'	=> in_array($class, $enabled_backends),
+		);
+	}
+}
+
 $tmpl = new OCP\Template('files_external', 'settings');
 $tmpl->assign('isAdminPage', true);
 $tmpl->assign('mounts', OC_Mount_Config::getSystemMountPoints());
-$tmpl->assign('backends', OC_Mount_Config::getBackends());
+$tmpl->assign('backends', $backends);
+$tmpl->assign('personal_backends', $personal_backends);
 $tmpl->assign('groups', OC_Group::getGroups());
 $tmpl->assign('users', OCP\User::getUsers());
 $tmpl->assign('userDisplayNames', OC_User::getDisplayNames());
diff --git a/apps/files_external/templates/settings.php b/apps/files_external/templates/settings.php
index 3ca16c3c7a8..de44d3c8644 100644
--- a/apps/files_external/templates/settings.php
+++ b/apps/files_external/templates/settings.php
@@ -122,12 +122,18 @@
 
 		<?php if ($_['isAdminPage']): ?>
 			<br />
-			<input type="checkbox"
-				   name="allowUserMounting"
-				   id="allowUserMounting"
-				   value="1" <?php if ($_['allowUserMounting'] == 'yes') print_unescaped(' checked="checked"'); ?> />
-			<label for="allowUserMounting"><?php p($l->t('Enable User External Storage')); ?></label><br/>
-			<em><?php p($l->t('Allow users to mount their own external storage')); ?></em>
+			<input type="checkbox" name="allowUserMounting" id="allowUserMounting"
+				value="1" <?php if ($_['allowUserMounting'] == 'yes') print_unescaped(' checked="checked"'); ?> />
+			<label for="allowUserMounting"><?php p($l->t('Enable User External Storage')); ?></label> <span id="userMountingMsg" class="msg"></span>
+
+			<p id="userMountingBackups"<?php if ($_['allowUserMounting'] != 'yes'): ?> class="hidden"<?php endif; ?>>
+				<?php p($l->t('Allow users to mount the following external storage')); ?><br />
+				<?php $i = 0; foreach ($_['personal_backends'] as $class => $backend): ?>
+					<input type="checkbox" id="allowUserMountingBackends<?php p($i); ?>" name="allowUserMountingBackends[]" value="<?php p($class); ?>" <?php if ($backend['enabled']) print_unescaped(' checked="checked"'); ?> />
+					<label for="allowUserMountingBackends<?php p($i); ?>"><?php p($backend['backend']); ?></label> <br />
+					<?php $i++; ?>
+				<?php endforeach; ?>
+			</p>
 		<?php endif; ?>
 	</fieldset>
 </form>
diff --git a/apps/files_sharing/js/share.js b/apps/files_sharing/js/share.js
index 36de452a55e..9f0ed12f935 100644
--- a/apps/files_sharing/js/share.js
+++ b/apps/files_sharing/js/share.js
@@ -5,6 +5,14 @@ $(document).ready(function() {
 
 	if (typeof OC.Share !== 'undefined' && typeof FileActions !== 'undefined'  && !disableSharing) {
 		$('#fileList').on('fileActionsReady',function(){
+
+			var allShared = $('#fileList').find('[data-share-owner]').find('[data-Action="Share"]');
+			allShared.addClass('permanent');
+			allShared.find('span').text(function(){
+				$owner = $(this).closest('tr').attr('data-share-owner');
+				return ' ' + t('files_sharing', 'Shared by {owner}', {owner: $owner});
+			});
+
 			if (!sharesLoaded){
 				OC.Share.loadIcons('file');
 				// assume that we got all shares, so switching directories
@@ -17,16 +25,15 @@ $(document).ready(function() {
 		});
 
 		FileActions.register('all', 'Share', OC.PERMISSION_READ, OC.imagePath('core', 'actions/share'), function(filename) {
-			if ($('#dir').val() == '/') {
-				var item = $('#dir').val() + filename;
-			} else {
-				var item = $('#dir').val() + '/' + filename;
+			var dir = $('#dir').val();
+			var item = dir + '/' + filename;
+			if (dir == '/') {
+				item = dir + filename;
 			}
 			var tr = FileList.findFileEl(filename);
+			var itemType = 'file';
 			if ($(tr).data('type') == 'dir') {
-				var itemType = 'folder';
-			} else {
-				var itemType = 'file';
+				itemType = 'folder';
 			}
 			var possiblePermissions = $(tr).data('permissions');
 			var appendTo = $(tr).find('td.filename');
diff --git a/apps/files_sharing/lib/cache.php b/apps/files_sharing/lib/cache.php
index 4b0da0b002d..10f2182655f 100644
--- a/apps/files_sharing/lib/cache.php
+++ b/apps/files_sharing/lib/cache.php
@@ -137,9 +137,12 @@ class Shared_Cache extends Cache {
 		} else {
 			$cache = $this->getSourceCache($folder);
 			if ($cache) {
+				$parent = $this->storage->getFile($folder);
 				$sourceFolderContent = $cache->getFolderContents($this->files[$folder]);
 				foreach ($sourceFolderContent as $key => $c) {
 					$sourceFolderContent[$key]['usersPath'] = 'files/Shared/' . $folder . '/' . $c['name'];
+					$sourceFolderContent[$key]['uid_owner'] = $parent['uid_owner'];
+					$sourceFolderContent[$key]['displayname_owner'] = $parent['uid_owner'];
 				}
 
 				return $sourceFolderContent;
diff --git a/apps/files_sharing/lib/share/file.php b/apps/files_sharing/lib/share/file.php
index ec0f368386f..5e00050fe1e 100644
--- a/apps/files_sharing/lib/share/file.php
+++ b/apps/files_sharing/lib/share/file.php
@@ -94,6 +94,9 @@ class OC_Share_Backend_File implements OCP\Share_Backend_File_Dependent {
 				$file['mtime'] = $item['mtime'];
 				$file['encrypted'] = $item['encrypted'];
 				$file['etag'] = $item['etag'];
+				$file['uid_owner'] = $item['uid_owner'];
+				$file['displayname_owner'] = $item['displayname_owner'];
+
 				$storage = \OC\Files\Filesystem::getStorage('/');
 				$cache = $storage->getCache();
 				if ($item['encrypted'] or ($item['unencrypted_size'] > 0 and $cache->getMimetype($item['mimetype']) === 'httpd/unix-directory')) {
diff --git a/apps/user_ldap/lib/helper.php b/apps/user_ldap/lib/helper.php
index 7de7fe8667f..b5955cb2abb 100644
--- a/apps/user_ldap/lib/helper.php
+++ b/apps/user_ldap/lib/helper.php
@@ -120,7 +120,7 @@ class Helper {
 
 		$saveOtherConfigurations = '';
 		if(empty($prefix)) {
-			$saveOtherConfigurations = 'AND `Configkey` NOT LIKE \'s%\'';
+			$saveOtherConfigurations = 'AND `configkey` NOT LIKE \'s%\'';
 		}
 
 		$query = \OCP\DB::prepare('
diff --git a/apps/user_ldap/user_proxy.php b/apps/user_ldap/user_proxy.php
index 5ad127197f3..2cb3dfb2c60 100644
--- a/apps/user_ldap/user_proxy.php
+++ b/apps/user_ldap/user_proxy.php
@@ -54,11 +54,15 @@ class User_Proxy extends lib\Proxy implements \OCP\UserInterface {
 	protected  function walkBackends($uid, $method, $parameters) {
 		$cacheKey = $this->getUserCacheKey($uid);
 		foreach($this->backends as $configPrefix => $backend) {
-// 			print("walkBackend '$configPrefix'<br/>");
-		    if($result = call_user_func_array(array($backend, $method), $parameters)) {
+			$instance = $backend;
+			if(!method_exists($instance, $method)
+				&& method_exists($this->getAccess($configPrefix), $method)) {
+				$instance = $this->getAccess($configPrefix);
+			}
+			if($result = call_user_func_array(array($instance, $method), $parameters)) {
 				$this->writeToCache($cacheKey, $configPrefix);
 				return $result;
-		    }
+			}
 		}
 		return false;
 	}
@@ -77,7 +81,12 @@ class User_Proxy extends lib\Proxy implements \OCP\UserInterface {
 		//in case the uid has been found in the past, try this stored connection first
 		if(!is_null($prefix)) {
 			if(isset($this->backends[$prefix])) {
-				$result = call_user_func_array(array($this->backends[$prefix], $method), $parameters);
+				$instance = $this->backends[$prefix];
+				if(!method_exists($instance, $method)
+					&& method_exists($this->getAccess($prefix), $method)) {
+					$instance = $this->getAccess($prefix);
+				}
+				$result = call_user_func_array(array($instance, $method), $parameters);
 				if($result === $passOnWhen) {
 					//not found here, reset cache to null if user vanished
 					//because sometimes methods return false with a reason
diff --git a/config/config.sample.php b/config/config.sample.php
index 9c5eca8a5ec..987a866e49b 100755
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -178,6 +178,9 @@ $CONFIG = array(
 /* Enable or disable the logging of IP addresses in case of webform auth failures */
 "log_authfailip" => false,
 
+/* Whether http-basic username must equal username to login */
+"basic_auth" => true,
+
 /*
  * Configure the size in bytes log rotation should happen, 0 or false disables the rotation.
  * This rotates the current owncloud logfile to a new name, this way the total log usage
diff --git a/core/css/icons.css b/core/css/icons.css
index 027a3f8557f..b41c7338612 100644
--- a/core/css/icons.css
+++ b/core/css/icons.css
@@ -156,11 +156,15 @@
 	background-image: url('../img/actions/sound-off.svg');
 }
 
-.icon-star {
+.icon-star,
+.icon-starred:hover,
+.icon-starred:focus {
 	background-image: url('../img/actions/star.svg');
 }
 
-.icon-starred {
+.icon-starred,
+.icon-star:hover,
+.icon-star:focus {
 	background-image: url('../img/actions/starred.svg');
 }
 
diff --git a/core/css/styles.css b/core/css/styles.css
index 082d2c714cf..69cf6df07d0 100644
--- a/core/css/styles.css
+++ b/core/css/styles.css
@@ -175,6 +175,7 @@ button, .button,
 	border: 1px solid rgba(190,190,190,.9);
 	cursor: pointer;
 	border-radius: 3px;
+	outline: none;
 }
 input[type="submit"]:hover, input[type="submit"]:focus,
 input[type="button"]:hover, input[type="button"]:focus,
@@ -204,18 +205,18 @@ textarea:disabled {
 /* Primary action button, use sparingly */
 .primary, input[type="submit"].primary, input[type="button"].primary, button.primary, .button.primary {
 	border: 1px solid #1d2d44;
-	background: #35537a;
+	background-color: #35537a;
 	color: #ddd;
 }
 	.primary:hover, input[type="submit"].primary:hover, input[type="button"].primary:hover, button.primary:hover, .button.primary:hover,
 	.primary:focus, input[type="submit"].primary:focus, input[type="button"].primary:focus, button.primary:focus, .button.primary:focus {
 		border: 1px solid #1d2d44;
-		background: #304d76;
+		background-color: #304d76;
 		color: #fff;
 	}
 	.primary:active, input[type="submit"].primary:active, input[type="button"].primary:active, button.primary:active, .button.primary:active {
 		border: 1px solid #1d2d44;
-		background: #1d2d44;
+		background-color: #1d2d44;
 		color: #bbb;
 	}
 
@@ -233,7 +234,7 @@ textarea:disabled {
 }
 
 input[type="submit"].enabled {
-	background: #66f866;
+	background-color: #66f866;
 	border: 1px solid #5e5;
 }
 
diff --git a/core/img/logo-mail.gif b/core/img/logo-mail.gif
index 6a1caaa9188..f1dd108450e 100644
--- a/core/img/logo-mail.gif
+++ b/core/img/logo-mail.gif
diff --git a/core/js/setup.js b/core/js/setup.js
index 279b5fbebb9..96719540f96 100644
--- a/core/js/setup.js
+++ b/core/js/setup.js
@@ -36,6 +36,7 @@ $(document).ready(function() {
 
 	$('#showAdvanced').click(function() {
 		$('#datadirContent').slideToggle(250);
+		$('#databaseBackend').slideToggle(250);
 		$('#databaseField').slideToggle(250);
 	});
 	$("form").submit(function(){
@@ -73,6 +74,7 @@ $(document).ready(function() {
 
 	if (currentDbType === 'sqlite' || (dbtypes.sqlite && currentDbType === undefined)){
 		$('#datadirContent').hide(250);
+		$('#databaseBackend').hide(250);
 		$('#databaseField').hide(250);
 	}
 
diff --git a/core/js/share.js b/core/js/share.js
index 0939259b7da..129e50b22d5 100644
--- a/core/js/share.js
+++ b/core/js/share.js
@@ -584,8 +584,8 @@ $(document).ready(function() {
 				$(checkboxes).filter('input[name="edit"]').attr('checked', false);
 			// Check Edit if Create, Update, or Delete is checked
 			} else if (($(this).attr('name') == 'create'
-					 || $(this).attr('name') == 'update'
-					 || $(this).attr('name') == 'delete'))
+				|| $(this).attr('name') == 'update'
+				|| $(this).attr('name') == 'delete'))
 			{
 				$(checkboxes).filter('input[name="edit"]').attr('checked', true);
 			}
diff --git a/core/templates/installation.php b/core/templates/installation.php
index d9f3c38ab11..e2d296a713f 100644
--- a/core/templates/installation.php
+++ b/core/templates/installation.php
@@ -84,7 +84,7 @@
 	<?php endif; ?>
 
 	<?php if(!$_['dbIsSet'] OR count($_['errors']) > 0): ?>
-	<fieldset id='databaseField'>
+	<fieldset id='databaseBackend'>
 		<?php if($_['hasMySQL'] or $_['hasPostgreSQL'] or $_['hasOracle'] or $_['hasMSSQL'])
 			$hasOtherDB = true; else $hasOtherDB =false; //other than SQLite ?>
 		<legend><?php p($l->t( 'Configure the database' )); ?></legend>
@@ -100,8 +100,10 @@
 		<?php endif; ?>
 		<?php endforeach; ?>
 		</div>
+	</fieldset>
 
 		<?php if($hasOtherDB): ?>
+		<fieldset id='databaseField'>
 		<div id="use_other_db">
 			<p class="infield grouptop">
 				<label for="dbuser" class="infield"><?php p($l->t( 'Database user' )); ?></label>
@@ -141,8 +143,8 @@
 					autocomplete="off" autocapitalize="off" autocorrect="off" />
 			</p>
 		</div>
+		</fieldset>
 		<?php endif; ?>
-	</fieldset>
 	<?php endif; ?>
 
 	<div class="buttons"><input type="submit" class="primary" value="<?php p($l->t( 'Finish setup' )); ?>" data-finishing="<?php p($l->t( 'Finishing …' )); ?>" /></div>
diff --git a/core/templates/mail.php b/core/templates/mail.php
index b8b0a2bfe96..ae46eaca788 100644
--- a/core/templates/mail.php
+++ b/core/templates/mail.php
@@ -2,15 +2,15 @@
 <tr><td>
 <table cellspacing="0" cellpadding="0" border="0" width="600px">
 <tr>
-<td bgcolor="#1d2d44" width="20px">&nbsp;</td>
-<td bgcolor="#1d2d44">
-<img src="<?php print_unescaped(OC_Helper::makeURLAbsolute(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
+<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
+<img src="<?php p(OC_Helper::makeURLAbsolute(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
 </td>
 </tr>
-<tr><td bgcolor="#f8f8f8" colspan="2">&nbsp;</td></tr>
+<tr><td colspan="2">&nbsp;</td></tr>
 <tr>
-<td bgcolor="#f8f8f8" width="20px">&nbsp;</td>
-<td bgcolor="#f8f8f8" style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">
+<td width="20px">&nbsp;</td>
+<td style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">
 <?php
 print_unescaped($l->t('Hey there,<br><br>just letting you know that %s shared <strong>%s</strong> with you.<br><a href="%s">View it!</a><br><br>', array($_['user_displayname'], $_['filename'], $_['link'])));
 if ( isset($_['expiration']) ) {
@@ -21,17 +21,17 @@ p($l->t('Cheers!'));
 ?>
 </td>
 </tr>
-<tr><td bgcolor="#f8f8f8" colspan="2">&nbsp;</td></tr>
+<tr><td colspan="2">&nbsp;</td></tr>
 <tr>
-<td bgcolor="#f8f8f8" width="20px">&nbsp;</td>
-<td bgcolor="#f8f8f8" style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">--<br>
+<td width="20px">&nbsp;</td>
+<td style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">--<br>
 <?php p($theme->getName()); ?> -
 <?php p($theme->getSlogan()); ?>
-<br><a href="<?php print_unescaped($theme->getBaseUrl()); ?>"><?php print_unescaped($theme->getBaseUrl());?></a>
+<br><a href="<?php p($theme->getBaseUrl()); ?>"><?php p($theme->getBaseUrl());?></a>
 </td>
 </tr>
 <tr>
-<td bgcolor="#f8f8f8" colspan="2">&nbsp;</td>
+<td colspan="2">&nbsp;</td>
 </tr>
 </table>
 </td></tr>
diff --git a/lib/base.php b/lib/base.php
index 7703e83ec2e..a44db8fd4db 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -553,7 +553,8 @@ class OC {
 		OC_User::useBackend(new OC_User_Database());
 		OC_Group::useBackend(new OC_Group_Database());
 
-		if (isset($_SERVER['PHP_AUTH_USER']) && self::$session->exists('loginname')
+		$basic_auth = OC_Config::getValue('basic_auth', true);
+		if ($basic_auth && isset($_SERVER['PHP_AUTH_USER']) && self::$session->exists('loginname')
 			&& $_SERVER['PHP_AUTH_USER'] !== self::$session->get('loginname')) {
 			$sessionUser = self::$session->get('loginname');
 			$serverUser = $_SERVER['PHP_AUTH_USER'];
diff --git a/lib/private/app.php b/lib/private/app.php
index 048d4d4aeb1..58bf67c1d47 100644
--- a/lib/private/app.php
+++ b/lib/private/app.php
@@ -219,6 +219,8 @@ class OC_App{
 				$appdata=OC_OCSClient::getApplication($app);
 				$download=OC_OCSClient::getApplicationDownload($app, 1);
 				if(isset($download['downloadlink']) and $download['downloadlink']!='') {
+					// Replace spaces in download link without encoding entire URL
+					$download['downloadlink'] = str_replace(' ', '%20', $download['downloadlink']);
 					$info = array('source'=>'http', 'href'=>$download['downloadlink'], 'appdata'=>$appdata);
 					$app=OC_Installer::installApp($info);
 				}
diff --git a/lib/private/config.php b/lib/private/config.php
index 3649da84973..56f47256134 100644
--- a/lib/private/config.php
+++ b/lib/private/config.php
@@ -77,7 +77,7 @@ class Config {
 	/**
 	 * @brief Gets a value from config.php
 	 * @param string $key key
-	 * @param string|null $default = null default value
+	 * @param array|bool|string|null $default = null default value
 	 * @return string the value or $default
 	 *
 	 * This function gets the value from config.php. If it does not exist,
diff --git a/lib/private/connector/sabre/directory.php b/lib/private/connector/sabre/directory.php
index 02d1a9f4ba2..3ed9e94d69b 100644
--- a/lib/private/connector/sabre/directory.php
+++ b/lib/private/connector/sabre/directory.php
@@ -50,7 +50,7 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 	 */
 	public function createFile($name, $data = null) {
 
-		if ($name === 'Shared' && empty($this->path)) {
+		if (strtolower($name) === 'shared' && empty($this->path)) {
 			throw new \Sabre_DAV_Exception_Forbidden();
 		}
 
@@ -86,7 +86,7 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 	 */
 	public function createDirectory($name) {
 
-		if ($name === 'Shared' && empty($this->path)) {
+		if (strtolower($name) === 'shared' && empty($this->path)) {
 			throw new \Sabre_DAV_Exception_Forbidden();
 		}
 
diff --git a/lib/private/connector/sabre/objecttree.php b/lib/private/connector/sabre/objecttree.php
index d2fa425b22c..accf020daa2 100644
--- a/lib/private/connector/sabre/objecttree.php
+++ b/lib/private/connector/sabre/objecttree.php
@@ -94,6 +94,9 @@ class ObjectTree extends \Sabre_DAV_ObjectTree {
 		}
 		if ($sourceDir !== $destinationDir) {
 			// for a full move we need update privileges on sourcePath and sourceDir as well as destinationDir
+			if (ltrim($destinationDir, '/') === '' && strtolower($sourceNode->getName()) === 'shared') {
+				throw new \Sabre_DAV_Exception_Forbidden();
+			}
 			if (!$fs->isUpdatable($sourceDir)) {
 				throw new \Sabre_DAV_Exception_Forbidden();
 			}
diff --git a/lib/private/db/mdb2schemareader.php b/lib/private/db/mdb2schemareader.php
index f9a76786c3e..1c16d03eab2 100644
--- a/lib/private/db/mdb2schemareader.php
+++ b/lib/private/db/mdb2schemareader.php
@@ -41,7 +41,9 @@ class MDB2SchemaReader {
 	 */
 	public function loadSchemaFromFile($file) {
 		$schema = new \Doctrine\DBAL\Schema\Schema();
+		$loadEntities = libxml_disable_entity_loader(false);
 		$xml = simplexml_load_file($file);
+		libxml_disable_entity_loader($loadEntities);
 		foreach ($xml->children() as $child) {
 			/**
 			 * @var \SimpleXMLElement $child
diff --git a/lib/private/defaults.php b/lib/private/defaults.php
index 59630cda5c0..79be211b82f 100644
--- a/lib/private/defaults.php
+++ b/lib/private/defaults.php
@@ -21,6 +21,7 @@ class OC_Defaults {
 	private $defaultDocBaseUrl;
 	private $defaultSlogan;
 	private $defaultLogoClaim;
+	private $defaultMailHeaderColor;
 
 	function __construct() {
 		$this->l = OC_L10N::get('core');
@@ -33,6 +34,7 @@ class OC_Defaults {
 		$this->defaultDocBaseUrl = "http://doc.owncloud.org";
 		$this->defaultSlogan = $this->l->t("web services under your control");
 		$this->defaultLogoClaim = "";
+		$this->defaultMailHeaderColor = "#1d2d44"; /* header color of mail notifications */
 
 		if (class_exists("OC_Theme")) {
 			$this->theme = new OC_Theme();
@@ -181,4 +183,16 @@ class OC_Defaults {
 		return $this->getDocBaseUrl() . '/server/6.0/go.php?to=' . $key;
 	}
 
+	/**
+	 * Returns mail header color
+	 * @return mail header color
+	 */
+	public function getMailHeaderColor() {
+		if ($this->themeExist('getMailHeaderColor')) {
+			return $this->theme->getMailHeaderColor();
+		} else {
+			return $this->defaultMailHeaderColor;
+		}
+	}
+
 }
diff --git a/lib/private/installer.php b/lib/private/installer.php
index 11633a4d4a1..64e8e3a5e7a 100644
--- a/lib/private/installer.php
+++ b/lib/private/installer.php
@@ -464,7 +464,7 @@ class OC_Installer{
 		// is the code checker enabled?
 		if(OC_Config::getValue('appcodechecker', true)) {
 			// check if grep is installed
-			$grep = exec('which grep');
+			$grep = exec('command -v grep');
 			if($grep=='') {
 				OC_Log::write('core',
 					'grep not installed. So checking the code of the app "'.$appname.'" was not possible',
diff --git a/lib/private/l10n.php b/lib/private/l10n.php
index ad979a92870..197b2d6791b 100644
--- a/lib/private/l10n.php
+++ b/lib/private/l10n.php
@@ -73,8 +73,8 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * get an L10N instance
-	 * @param $app string
-	 * @param $lang string|null
+	 * @param string $app
+	 * @param string|null $lang
 	 * @return OC_L10N
 	 */
 	public static function get($app, $lang=null) {
@@ -87,8 +87,8 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief The constructor
-	 * @param $app string app requesting l10n
-	 * @param $lang string default: null Language
+	 * @param string $app app requesting l10n
+	 * @param string $lang default: null Language
 	 * @returns OC_L10N-Object
 	 *
 	 * If language is not set, the constructor tries to find the right
@@ -237,7 +237,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief Translating
-	 * @param $text String The text we need a translation for
+	 * @param string $text The text we need a translation for
 	 * @param array $parameters default:array() Parameters for sprintf
 	 * @return \OC_L10N_String Translation or the same text
 	 *
@@ -250,9 +250,9 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief Translating
-	 * @param $text_singular String the string to translate for exactly one object
-	 * @param $text_plural String the string to translate for n objects
-	 * @param $count Integer Number of objects
+	 * @param string $text_singular the string to translate for exactly one object
+	 * @param string $text_plural the string to translate for n objects
+	 * @param integer $count Number of objects
 	 * @param array $parameters default:array() Parameters for sprintf
 	 * @return \OC_L10N_String Translation or the same text
 	 *
@@ -351,7 +351,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief Localization
-	 * @param $type Type of localization
+	 * @param string $type Type of localization
 	 * @param $params parameters for this localization
 	 * @returns String or false
 	 *
@@ -406,7 +406,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief Choose a language
-	 * @param $texts Associative Array with possible strings
+	 * @param array $text Associative Array with possible strings
 	 * @returns String
 	 *
 	 * $text is an array 'de' => 'hallo welt', 'en' => 'hello world', ...
@@ -421,7 +421,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief find the best language
-	 * @param $app Array or string, details below
+	 * @param array|string $app details below
 	 * @returns string language
 	 *
 	 * If $app is an array, ownCloud assumes that these are the available
@@ -494,7 +494,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief find the l10n directory
-	 * @param $app App that needs to be translated
+	 * @param string $app App that needs to be translated
 	 * @returns directory
 	 */
 	protected static function findI18nDir($app) {
@@ -514,7 +514,7 @@ class OC_L10N implements \OCP\IL10N {
 
 	/**
 	 * @brief find all available languages for an app
-	 * @param $app App that needs to be translated
+	 * @param string $app App that needs to be translated
 	 * @returns array an array of available languages
 	 */
 	public static function findAvailableLanguages($app=null) {
@@ -533,7 +533,9 @@ class OC_L10N implements \OCP\IL10N {
 	}
 
 	/**
+	 * @param string $app
 	 * @param string $lang
+	 * @returns bool
 	 */
 	public static function languageExists($app, $lang) {
 		if ($lang == 'en') {//english is always available
diff --git a/lib/private/ocs/cloud.php b/lib/private/ocs/cloud.php
index cbbf3b626f5..06d6a8eb4b0 100644
--- a/lib/private/ocs/cloud.php
+++ b/lib/private/ocs/cloud.php
@@ -61,17 +61,29 @@ class OC_OCS_Cloud {
 	 *                           the user from whom the information will be returned
 	 */
 	public static function getUser($parameters) {
+		$return  = array();
 		// Check if they are viewing information on themselves
 		if($parameters['userid'] === OC_User::getUser()) {
 			// Self lookup
 			$storage = OC_Helper::getStorageInfo('/');
-			$quota = array(
+			$return['quota'] = array(
 				'free' =>  $storage['free'],
 				'used' =>  $storage['used'],
 				'total' =>  $storage['total'],
 				'relative' => $storage['relative'],
 				);
-			return new OC_OCS_Result(array('quota' => $quota));
+		}
+		if(OC_User::isAdminUser(OC_User::getUser()) 
+			|| OC_Subadmin::isUserAccessible(OC_User::getUser(), $parameters['userid'])) {
+			if(OC_User::userExists($parameters['userid'])) {
+				// Is an admin/subadmin so can see display name
+				$return['displayname'] = OC_User::getDisplayName($parameters['userid']);
+			} else {
+				return new OC_OCS_Result(null, 101);
+			}
+		}
+		if(count($return)) {
+			return new OC_OCS_Result($return);
 		} else {
 			// No permission to view this user data
 			return new OC_OCS_Result(null, 997);
diff --git a/lib/private/preview.php b/lib/private/preview.php
index 80fd003ed8d..74051fbc2a3 100755
--- a/lib/private/preview.php
+++ b/lib/private/preview.php
@@ -53,6 +53,11 @@ class Preview {
 	static private $registeredProviders = array();
 
 	/**
+	 * @var \OCP\Files\FileInfo
+	 */
+	protected $info;
+
+	/**
 	 * @brief check if thumbnail or bigger version of thumbnail of file is cached
 	 * @param string $user userid - if no user is given, OC_User::getUser will be used
 	 * @param string $root path of root
@@ -61,12 +66,12 @@ class Preview {
 	 * @param int $maxY The maximum Y size of the thumbnail. It can be smaller depending on the shape of the image
 	 * @param bool $scalingUp Disable/Enable upscaling of previews
 	 * @return mixed (bool / string)
-	 *					false if thumbnail does not exist
-	 *					path to thumbnail if thumbnail exists
-	*/
-	public function __construct($user='', $root='/', $file='', $maxX=1, $maxY=1, $scalingUp=true) {
+	 *                    false if thumbnail does not exist
+	 *                    path to thumbnail if thumbnail exists
+	 */
+	public function __construct($user = '', $root = '/', $file = '', $maxX = 1, $maxY = 1, $scalingUp = true) {
 		//init fileviews
-		if($user === ''){
+		if ($user === '') {
 			$user = \OC_User::getUser();
 		}
 		$this->fileView = new \OC\Files\View('/' . $user . '/' . $root);
@@ -86,11 +91,11 @@ class Preview {
 		$this->preview = null;
 
 		//check if there are preview backends
-		if(empty(self::$providers)) {
+		if (empty(self::$providers)) {
 			self::initProviders();
 		}
 
-		if(empty(self::$providers)) {
+		if (empty(self::$providers)) {
 			\OC_Log::write('core', 'No preview providers exist', \OC_Log::ERROR);
 			throw new \Exception('No preview providers');
 		}
@@ -99,15 +104,15 @@ class Preview {
 	/**
 	 * @brief returns the path of the file you want a thumbnail from
 	 * @return string
-	*/
-	public function	getFile() {
+	 */
+	public function    getFile() {
 		return $this->file;
 	}
 
 	/**
 	 * @brief returns the max width of the preview
 	 * @return integer
-	*/
+	 */
 	public function getMaxX() {
 		return $this->maxX;
 	}
@@ -115,7 +120,7 @@ class Preview {
 	/**
 	 * @brief returns the max height of the preview
 	 * @return integer
-	*/
+	 */
 	public function getMaxY() {
 		return $this->maxY;
 	}
@@ -123,7 +128,7 @@ class Preview {
 	/**
 	 * @brief returns whether or not scalingup is enabled
 	 * @return bool
-	*/
+	 */
 	public function getScalingUp() {
 		return $this->scalingup;
 	}
@@ -131,7 +136,7 @@ class Preview {
 	/**
 	 * @brief returns the name of the thumbnailfolder
 	 * @return string
-	*/
+	 */
 	public function getThumbnailsFolder() {
 		return self::THUMBNAILS_FOLDER;
 	}
@@ -139,7 +144,7 @@ class Preview {
 	/**
 	 * @brief returns the max scale factor
 	 * @return string
-	*/
+	 */
 	public function getMaxScaleFactor() {
 		return $this->maxScaleFactor;
 	}
@@ -147,7 +152,7 @@ class Preview {
 	/**
 	 * @brief returns the max width set in ownCloud's config
 	 * @return string
-	*/
+	 */
 	public function getConfigMaxX() {
 		return $this->configMaxX;
 	}
@@ -155,20 +160,28 @@ class Preview {
 	/**
 	 * @brief returns the max height set in ownCloud's config
 	 * @return string
-	*/
+	 */
 	public function getConfigMaxY() {
 		return $this->configMaxY;
 	}
 
+	protected function getFileInfo() {
+		if (!$this->info) {
+			$this->info = $this->fileView->getFileInfo($this->file);
+		}
+		return $this->info;
+	}
+
 	/**
 	 * @brief set the path of the file you want a thumbnail from
 	 * @param string $file
 	 * @return $this
-	*/
+	 */
 	public function setFile($file) {
 		$this->file = $file;
+		$this->info = null;
 		if ($file !== '') {
-			$this->mimetype = $this->fileView->getMimeType($this->file);
+			$this->mimetype = $this->getFileInfo()->getMimetype();
 		}
 		return $this;
 	}
@@ -185,14 +198,14 @@ class Preview {
 	 * @brief set the the max width of the preview
 	 * @param int $maxX
 	 * @return $this
-	*/
-	public function setMaxX($maxX=1) {
-		if($maxX <= 0) {
+	 */
+	public function setMaxX($maxX = 1) {
+		if ($maxX <= 0) {
 			throw new \Exception('Cannot set width of 0 or smaller!');
 		}
 		$configMaxX = $this->getConfigMaxX();
-		if(!is_null($configMaxX)) {
-			if($maxX > $configMaxX) {
+		if (!is_null($configMaxX)) {
+			if ($maxX > $configMaxX) {
 				\OC_Log::write('core', 'maxX reduced from ' . $maxX . ' to ' . $configMaxX, \OC_Log::DEBUG);
 				$maxX = $configMaxX;
 			}
@@ -205,14 +218,14 @@ class Preview {
 	 * @brief set the the max height of the preview
 	 * @param int $maxY
 	 * @return $this
-	*/
-	public function setMaxY($maxY=1) {
-		if($maxY <= 0) {
+	 */
+	public function setMaxY($maxY = 1) {
+		if ($maxY <= 0) {
 			throw new \Exception('Cannot set height of 0 or smaller!');
 		}
 		$configMaxY = $this->getConfigMaxY();
-		if(!is_null($configMaxY)) {
-			if($maxY > $configMaxY) {
+		if (!is_null($configMaxY)) {
+			if ($maxY > $configMaxY) {
 				\OC_Log::write('core', 'maxX reduced from ' . $maxY . ' to ' . $configMaxY, \OC_Log::DEBUG);
 				$maxY = $configMaxY;
 			}
@@ -225,9 +238,9 @@ class Preview {
 	 * @brief set whether or not scalingup is enabled
 	 * @param bool $scalingUp
 	 * @return $this
-	*/
+	 */
 	public function setScalingup($scalingUp) {
-		if($this->getMaxScaleFactor() === 1) {
+		if ($this->getMaxScaleFactor() === 1) {
 			$scalingUp = false;
 		}
 		$this->scalingup = $scalingUp;
@@ -237,15 +250,15 @@ class Preview {
 	/**
 	 * @brief check if all parameters are valid
 	 * @return bool
-	*/
+	 */
 	public function isFileValid() {
 		$file = $this->getFile();
-		if($file === '') {
+		if ($file === '') {
 			\OC_Log::write('core', 'No filename passed', \OC_Log::DEBUG);
 			return false;
 		}
 
-		if(!$this->fileView->file_exists($file)) {
+		if (!$this->fileView->file_exists($file)) {
 			\OC_Log::write('core', 'File:"' . $file . '" not found', \OC_Log::DEBUG);
 			return false;
 		}
@@ -256,40 +269,38 @@ class Preview {
 	/**
 	 * @brief deletes previews of a file with specific x and y
 	 * @return bool
-	*/
+	 */
 	public function deletePreview() {
 		$file = $this->getFile();
 
-		$fileInfo = $this->fileView->getFileInfo($file);
-		$fileId = $fileInfo['fileid'];
+		$fileInfo = $this->getFileInfo($file);
+		$fileId = $fileInfo->getId();
 
 		$previewPath = $this->getThumbnailsFolder() . '/' . $fileId . '/' . $this->getMaxX() . '-' . $this->getMaxY() . '.png';
-		$this->userView->unlink($previewPath);
-		return !$this->userView->file_exists($previewPath);
+		return $this->userView->unlink($previewPath);
 	}
 
 	/**
 	 * @brief deletes all previews of a file
 	 * @return bool
-	*/
+	 */
 	public function deleteAllPreviews() {
 		$file = $this->getFile();
 
-		$fileInfo = $this->fileView->getFileInfo($file);
-		$fileId = $fileInfo['fileid'];
+		$fileInfo = $this->getFileInfo($file);
+		$fileId = $fileInfo->getId();
 
 		$previewPath = $this->getThumbnailsFolder() . '/' . $fileId . '/';
 		$this->userView->deleteAll($previewPath);
-		$this->userView->rmdir($previewPath);
-		return !$this->userView->is_dir($previewPath);
+		return $this->userView->rmdir($previewPath);
 	}
 
 	/**
 	 * @brief check if thumbnail or bigger version of thumbnail of file is cached
 	 * @return mixed (bool / string)
-	 *				false if thumbnail does not exist
-	 *				path to thumbnail if thumbnail exists
-	*/
+	 *                false if thumbnail does not exist
+	 *                path to thumbnail if thumbnail exists
+	 */
 	private function isCached() {
 		$file = $this->getFile();
 		$maxX = $this->getMaxX();
@@ -297,75 +308,75 @@ class Preview {
 		$scalingUp = $this->getScalingUp();
 		$maxScaleFactor = $this->getMaxScaleFactor();
 
-		$fileInfo = $this->fileView->getFileInfo($file);
-		$fileId = $fileInfo['fileid'];
+		$fileInfo = $this->getFileInfo($file);
+		$fileId = $fileInfo->getId();
 
-		if(is_null($fileId)) {
+		if (is_null($fileId)) {
 			return false;
 		}
 
 		$previewPath = $this->getThumbnailsFolder() . '/' . $fileId . '/';
-		if(!$this->userView->is_dir($previewPath)) {
+		if (!$this->userView->is_dir($previewPath)) {
 			return false;
 		}
 
 		//does a preview with the wanted height and width already exist?
-		if($this->userView->file_exists($previewPath . $maxX . '-' . $maxY . '.png')) {
+		if ($this->userView->file_exists($previewPath . $maxX . '-' . $maxY . '.png')) {
 			return $previewPath . $maxX . '-' . $maxY . '.png';
 		}
 
-		$wantedAspectRatio = (float) ($maxX / $maxY);
+		$wantedAspectRatio = (float)($maxX / $maxY);
 
 		//array for usable cached thumbnails
 		$possibleThumbnails = array();
 
 		$allThumbnails = $this->userView->getDirectoryContent($previewPath);
-		foreach($allThumbnails as $thumbnail) {
+		foreach ($allThumbnails as $thumbnail) {
 			$name = rtrim($thumbnail['name'], '.png');
 			$size = explode('-', $name);
-			$x = (int) $size[0];
-			$y = (int) $size[1];
+			$x = (int)$size[0];
+			$y = (int)$size[1];
 
-			$aspectRatio = (float) ($x / $y);
-			if($aspectRatio !== $wantedAspectRatio) {
+			$aspectRatio = (float)($x / $y);
+			if ($aspectRatio !== $wantedAspectRatio) {
 				continue;
 			}
 
-			if($x < $maxX || $y < $maxY) {
-				if($scalingUp) {
+			if ($x < $maxX || $y < $maxY) {
+				if ($scalingUp) {
 					$scalefactor = $maxX / $x;
-					if($scalefactor > $maxScaleFactor) {
+					if ($scalefactor > $maxScaleFactor) {
 						continue;
 					}
-				}else{
+				} else {
 					continue;
 				}
 			}
 			$possibleThumbnails[$x] = $thumbnail['path'];
 		}
 
-		if(count($possibleThumbnails) === 0) {
+		if (count($possibleThumbnails) === 0) {
 			return false;
 		}
 
-		if(count($possibleThumbnails) === 1) {
+		if (count($possibleThumbnails) === 1) {
 			return current($possibleThumbnails);
 		}
 
 		ksort($possibleThumbnails);
 
-		if(key(reset($possibleThumbnails)) > $maxX) {
+		if (key(reset($possibleThumbnails)) > $maxX) {
 			return current(reset($possibleThumbnails));
 		}
 
-		if(key(end($possibleThumbnails)) < $maxX) {
+		if (key(end($possibleThumbnails)) < $maxX) {
 			return current(end($possibleThumbnails));
 		}
 
-		foreach($possibleThumbnails as $width => $path) {
-			if($width < $maxX) {
+		foreach ($possibleThumbnails as $width => $path) {
+			if ($width < $maxX) {
 				continue;
-			}else{
+			} else {
 				return $path;
 			}
 		}
@@ -374,9 +385,9 @@ class Preview {
 	/**
 	 * @brief return a preview of a file
 	 * @return \OC_Image
-	*/
+	 */
 	public function getPreview() {
-		if(!is_null($this->preview) && $this->preview->valid()){
+		if (!is_null($this->preview) && $this->preview->valid()) {
 			return $this->preview;
 		}
 
@@ -386,22 +397,25 @@ class Preview {
 		$maxY = $this->getMaxY();
 		$scalingUp = $this->getScalingUp();
 
-		$fileInfo = $this->fileView->getFileInfo($file);
-		$fileId = $fileInfo['fileid'];
+		$fileInfo = $this->getFileInfo($file);
+		$fileId = $fileInfo->getId();
 
 		$cached = $this->isCached();
 
-		if($cached) {
-			$image = new \OC_Image($this->userView->file_get_contents($cached, 'r'));
+		if ($cached) {
+			$stream = $this->userView->fopen($cached, 'r');
+			$image = new \OC_Image();
+			$image->loadFromFileHandle($stream);
 			$this->preview = $image->valid() ? $image : null;
 			$this->resizeAndCrop();
+			fclose($stream);
 		}
 
-		if(is_null($this->preview)) {
+		if (is_null($this->preview)) {
 			$preview = null;
 
-			foreach(self::$providers as $supportedMimetype => $provider) {
-				if(!preg_match($supportedMimetype, $this->mimetype)) {
+			foreach (self::$providers as $supportedMimetype => $provider) {
+				if (!preg_match($supportedMimetype, $this->mimetype)) {
 					continue;
 				}
 
@@ -409,7 +423,7 @@ class Preview {
 
 				$preview = $provider->getThumbnail($file, $maxX, $maxY, $scalingUp, $this->fileView);
 
-				if(!($preview instanceof \OC_Image)) {
+				if (!($preview instanceof \OC_Image)) {
 					continue;
 				}
 
@@ -419,11 +433,11 @@ class Preview {
 				$previewPath = $this->getThumbnailsFolder() . '/' . $fileId . '/';
 				$cachePath = $previewPath . $maxX . '-' . $maxY . '.png';
 
-				if($this->userView->is_dir($this->getThumbnailsFolder() . '/') === false) {
+				if ($this->userView->is_dir($this->getThumbnailsFolder() . '/') === false) {
 					$this->userView->mkdir($this->getThumbnailsFolder() . '/');
 				}
 
-				if($this->userView->is_dir($previewPath) === false) {
+				if ($this->userView->is_dir($previewPath) === false) {
 					$this->userView->mkdir($previewPath);
 				}
 
@@ -433,7 +447,7 @@ class Preview {
 			}
 		}
 
-		if(is_null($this->preview)) {
+		if (is_null($this->preview)) {
 			$this->preview = new \OC_Image();
 		}
 
@@ -443,10 +457,10 @@ class Preview {
 	/**
 	 * @brief show preview
 	 * @return void
-	*/
+	 */
 	public function showPreview() {
 		\OCP\Response::enableCaching(3600 * 24); // 24 hours
-		if(is_null($this->preview)) {
+		if (is_null($this->preview)) {
 			$this->getPreview();
 		}
 		$this->preview->show();
@@ -456,7 +470,7 @@ class Preview {
 	/**
 	 * @brief show preview
 	 * @return void
-	*/
+	 */
 	public function show() {
 		$this->showPreview();
 		return;
@@ -465,7 +479,7 @@ class Preview {
 	/**
 	 * @brief resize, crop and fix orientation
 	 * @return void
-	*/
+	 */
 	private function resizeAndCrop() {
 		$image = $this->preview;
 		$x = $this->getMaxX();
@@ -473,17 +487,17 @@ class Preview {
 		$scalingUp = $this->getScalingUp();
 		$maxscalefactor = $this->getMaxScaleFactor();
 
-		if(!($image instanceof \OC_Image)) {
+		if (!($image instanceof \OC_Image)) {
 			\OC_Log::write('core', '$this->preview is not an instance of OC_Image', \OC_Log::DEBUG);
 			return;
 		}
 
 		$image->fixOrientation();
 
-		$realx = (int) $image->width();
-		$realy = (int) $image->height();
+		$realx = (int)$image->width();
+		$realy = (int)$image->height();
 
-		if($x === $realx && $y === $realy) {
+		if ($x === $realx && $y === $realy) {
 			$this->preview = $image;
 			return;
 		}
@@ -491,36 +505,36 @@ class Preview {
 		$factorX = $x / $realx;
 		$factorY = $y / $realy;
 
-		if($factorX >= $factorY) {
+		if ($factorX >= $factorY) {
 			$factor = $factorX;
-		}else{
+		} else {
 			$factor = $factorY;
 		}
 
-		if($scalingUp === false) {
-			if($factor > 1) {
+		if ($scalingUp === false) {
+			if ($factor > 1) {
 				$factor = 1;
 			}
 		}
 
-		if(!is_null($maxscalefactor)) {
-			if($factor > $maxscalefactor) {
+		if (!is_null($maxscalefactor)) {
+			if ($factor > $maxscalefactor) {
 				\OC_Log::write('core', 'scalefactor reduced from ' . $factor . ' to ' . $maxscalefactor, \OC_Log::DEBUG);
 				$factor = $maxscalefactor;
 			}
 		}
 
-		$newXsize = (int) ($realx * $factor);
-		$newYsize = (int) ($realy * $factor);
+		$newXsize = (int)($realx * $factor);
+		$newYsize = (int)($realy * $factor);
 
 		$image->preciseResize($newXsize, $newYsize);
 
-		if($newXsize === $x && $newYsize === $y) {
+		if ($newXsize === $x && $newYsize === $y) {
 			$this->preview = $image;
 			return;
 		}
 
-		if($newXsize >= $x && $newYsize >= $y) {
+		if ($newXsize >= $x && $newYsize >= $y) {
 			$cropX = floor(abs($x - $newXsize) * 0.5);
 			//don't crop previews on the Y axis, this sucks if it's a document.
 			//$cropY = floor(abs($y - $newYsize) * 0.5);
@@ -532,19 +546,19 @@ class Preview {
 			return;
 		}
 
-		if($newXsize < $x || $newYsize < $y) {
-			if($newXsize > $x) {
+		if ($newXsize < $x || $newYsize < $y) {
+			if ($newXsize > $x) {
 				$cropX = floor(($newXsize - $x) * 0.5);
 				$image->crop($cropX, 0, $x, $newYsize);
 			}
 
-			if($newYsize > $y) {
+			if ($newYsize > $y) {
 				$cropY = floor(($newYsize - $y) * 0.5);
 				$image->crop(0, $cropY, $newXsize, $y);
 			}
 
-			$newXsize = (int) $image->width();
-			$newYsize = (int) $image->height();
+			$newXsize = (int)$image->width();
+			$newYsize = (int)$image->height();
 
 			//create transparent background layer
 			$backgroundlayer = imagecreatetruecolor($x, $y);
@@ -573,8 +587,8 @@ class Preview {
 	 * @param array $options
 	 * @return void
 	 */
-	public static function registerProvider($class, $options=array()) {
-		self::$registeredProviders[]=array('class'=>$class, 'options'=>$options);
+	public static function registerProvider($class, $options = array()) {
+		self::$registeredProviders[] = array('class' => $class, 'options' => $options);
 	}
 
 	/**
@@ -582,19 +596,19 @@ class Preview {
 	 * @return void
 	 */
 	private static function initProviders() {
-		if(!\OC_Config::getValue('enable_previews', true)) {
+		if (!\OC_Config::getValue('enable_previews', true)) {
 			$provider = new Preview\Unknown(array());
 			self::$providers = array($provider->getMimeType() => $provider);
 			return;
 		}
 
-		if(count(self::$providers)>0) {
+		if (count(self::$providers) > 0) {
 			return;
 		}
 
-		foreach(self::$registeredProviders as $provider) {
-			$class=$provider['class'];
-			$options=$provider['options'];
+		foreach (self::$registeredProviders as $provider) {
+			$class = $provider['class'];
+			$options = $provider['options'];
 
 			$object = new $class($options);
 
@@ -611,7 +625,7 @@ class Preview {
 
 	public static function post_delete($args) {
 		$path = $args['path'];
-		if(substr($path, 0, 1) === '/') {
+		if (substr($path, 0, 1) === '/') {
 			$path = substr($path, 1);
 		}
 		$preview = new Preview(\OC_User::getUser(), 'files/', $path);
@@ -622,19 +636,19 @@ class Preview {
 	 * @param string $mimetype
 	 */
 	public static function isMimeSupported($mimetype) {
-		if(!\OC_Config::getValue('enable_previews', true)) {
+		if (!\OC_Config::getValue('enable_previews', true)) {
 			return false;
 		}
 
 		//check if there are preview backends
-		if(empty(self::$providers)) {
+		if (empty(self::$providers)) {
 			self::initProviders();
 		}
 
 		//remove last element because it has the mimetype *
 		$providers = array_slice(self::$providers, 0, -1);
-		foreach($providers as $supportedMimetype => $provider) {
-			if(preg_match($supportedMimetype, $mimetype)) {
+		foreach ($providers as $supportedMimetype => $provider) {
+			if (preg_match($supportedMimetype, $mimetype)) {
 				return true;
 			}
 		}
diff --git a/lib/private/preview/movies.php b/lib/private/preview/movies.php
index 71cd3bae057..7e0ff51ad2e 100644
--- a/lib/private/preview/movies.php
+++ b/lib/private/preview/movies.php
@@ -9,7 +9,7 @@
 namespace OC\Preview;
 
 function findBinaryPath($program) {
-	exec('which ' . escapeshellarg($program) . ' 2> /dev/null', $output, $returnCode);
+	exec('command -v ' . escapeshellarg($program) . ' 2> /dev/null', $output, $returnCode);
 	if ($returnCode === 0 && count($output) > 0) {
 		return escapeshellcmd($output[0]);
 	}
diff --git a/lib/private/preview/office-cl.php b/lib/private/preview/office-cl.php
index b11fed13ba1..6e4d4321eb7 100644
--- a/lib/private/preview/office-cl.php
+++ b/lib/private/preview/office-cl.php
@@ -64,12 +64,12 @@ if (!\OC_Util::runningOnWindows()) {
 				$cmd = \OC_Config::getValue('preview_libreoffice_path', null);
 			}
 
-			$whichLibreOffice = shell_exec('which libreoffice');
+			$whichLibreOffice = shell_exec('command -v libreoffice');
 			if($cmd === '' && !empty($whichLibreOffice)) {
 				$cmd = 'libreoffice';
 			}
 
-			$whichOpenOffice = shell_exec('which openoffice');
+			$whichOpenOffice = shell_exec('command -v openoffice');
 			if($cmd === '' && !empty($whichOpenOffice)) {
 				$cmd = 'openoffice';
 			}
diff --git a/lib/private/preview/office.php b/lib/private/preview/office.php
index 02bb22e9b94..131bc9a0dc4 100644
--- a/lib/private/preview/office.php
+++ b/lib/private/preview/office.php
@@ -11,9 +11,9 @@ if (extension_loaded('imagick') && count(@\Imagick::queryFormats("PDF")) === 1)
 
 	// LibreOffice preview is currently not supported on Windows
 	if (!\OC_Util::runningOnWindows()) {
-		$whichLibreOffice = ($isShellExecEnabled ? shell_exec('which libreoffice') : '');
+		$whichLibreOffice = ($isShellExecEnabled ? shell_exec('command -v libreoffice') : '');
 		$isLibreOfficeAvailable = !empty($whichLibreOffice);
-		$whichOpenOffice = ($isShellExecEnabled ? shell_exec('which libreoffice') : '');
+		$whichOpenOffice = ($isShellExecEnabled ? shell_exec('command -v libreoffice') : '');
 		$isOpenOfficeAvailable = !empty($whichOpenOffice);
 		//let's see if there is libreoffice or openoffice on this machine
 		if($isShellExecEnabled && ($isLibreOfficeAvailable || $isOpenOfficeAvailable || is_string(\OC_Config::getValue('preview_libreoffice_path', null)))) {
diff --git a/lib/private/template/base.php b/lib/private/template/base.php
index 232a29939cc..7aa0cb4a956 100644
--- a/lib/private/template/base.php
+++ b/lib/private/template/base.php
@@ -61,7 +61,7 @@ class Base {
 	/**
 	 * @brief Assign variables
 	 * @param string $key key
-	 * @param string $value value
+	 * @param array|bool|integer|string $value value
 	 * @return bool
 	 *
 	 * This function assigns a variable. It can be accessed via $_[$key] in
diff --git a/settings/admin/controller.php b/settings/admin/controller.php
index a075d774361..7019f9a4d2a 100644
--- a/settings/admin/controller.php
+++ b/settings/admin/controller.php
@@ -74,6 +74,36 @@ class Controller {
 	}
 
 	/**
+	 * Send a mail to test the settings
+	 */
+	public static function sendTestMail() {
+		\OC_Util::checkAdminUser();
+		\OCP\JSON::callCheck();
+
+		$l = \OC_L10N::get('settings');
+		$email = \OC_Preferences::getValue(\OC_User::getUser(), 'settings', 'email', '');
+		if (!empty($email)) {
+			$defaults = new \OC_Defaults();
+
+			try {
+				\OC_Mail::send($email, $_POST['user'],
+					$l->t('test email settings'),
+					$l->t('If you received this email, the settings seem to be correct.'),
+					\OCP\Util::getDefaultEmailAddress('no-reply'), $defaults->getName());
+			} catch (\Exception $e) {
+				$message = $l->t('A problem occurred while sending the e-mail. Please revisit your settings.');
+				\OC_JSON::error( array( "data" => array( "message" => $message)) );
+				exit;
+			}
+
+			\OC_JSON::success(array("data" => array( "message" => $l->t("Email sent") )));
+		} else {
+			$message = $l->t('You need to set your user email before being able to send test emails.');
+			\OC_JSON::error( array( "data" => array( "message" => $message)) );
+		}
+	}
+
+	/**
 	 * Get the field name to use it in error messages
 	 *
 	 * @param $setting string
diff --git a/settings/js/admin.js b/settings/js/admin.js
index cfb1cb788d0..c04c0505deb 100644
--- a/settings/js/admin.js
+++ b/settings/js/admin.js
@@ -62,10 +62,18 @@ $(document).ready(function(){
 	});
 
 	$('#mail_settings').change(function(){
-		OC.msg.startSaving('#mail_settings .msg');
+		OC.msg.startSaving('#mail_settings_msg');
 		var post = $( "#mail_settings" ).serialize();
 		$.post(OC.generateUrl('/settings/admin/mailsettings'), post, function(data){
 			OC.msg.finishedSaving('#mail_settings .msg', data);
 		});
 	});
+
+	$('#sendtestemail').click(function(){
+		OC.msg.startAction('#sendtestmail_msg', t('settings', 'Sending...'));
+		var post = $( "#sendtestemail" ).serialize();
+		$.post(OC.generateUrl('/settings/admin/mailtest'), post, function(data){
+			OC.msg.finishedAction('#sendtestmail_msg', data);
+		});
+	});
 });
diff --git a/settings/routes.php b/settings/routes.php
index 7d94f130088..6954bd3823d 100644
--- a/settings/routes.php
+++ b/settings/routes.php
@@ -75,5 +75,8 @@ $this->create('settings_ajax_setloglevel', '/settings/ajax/setloglevel.php')
 $this->create('settings_mail_settings', '/settings/admin/mailsettings')
 	->post()
 	->action('OC\Settings\Admin\Controller', 'setMailSettings');
+$this->create('settings_admin_mail_test', '/settings/admin/mailtest')
+	->post()
+	->action('OC\Settings\Admin\Controller', 'sendTestMail');
 $this->create('settings_ajax_setsecurity', '/settings/ajax/setsecurity.php')
 	->actionInclude('settings/ajax/setsecurity.php');
diff --git a/settings/templates/admin.php b/settings/templates/admin.php
index 139a9dd076c..487da036e74 100644
--- a/settings/templates/admin.php
+++ b/settings/templates/admin.php
@@ -272,7 +272,7 @@ if (!$_['internetconnectionworking']) {
 </fieldset>
 
 <fieldset id="mail_settings" class="personalblock">
-	<h2><?php p($l->t('Email Server'));?> <span class="msg"></span></h2>
+	<h2><?php p($l->t('Email Server'));?> <span id="mail_settings_msg" class="msg"></span></h2>
 
 	<p><?php p($l->t('This is used for sending out notifications.')); ?></p>
 
@@ -347,6 +347,10 @@ if (!$_['internetconnectionworking']) {
 			   placeholder="<?php p($l->t('SMTP Password'))?>" value='<?php p($_['mail_smtppassword']) ?>' />
 	</p>
 
+	<br />
+	<em><?php p($l->t( 'Test email settings' )); ?></em>
+	<input type="submit" name="sendtestemail" id="sendtestemail" value="<?php p($l->t( 'Send email' )); ?>"/>
+	<span id="sendtestmail_msg" class="msg"></span>
 </fieldset>
 
 <fieldset class="personalblock">
diff --git a/settings/templates/personal.php b/settings/templates/personal.php
index 470b8180bcc..9024f435657 100644
--- a/settings/templates/personal.php
+++ b/settings/templates/personal.php
@@ -83,7 +83,7 @@ if($_['passwordChangeSupported']) {
 			placeholder="<?php p($l->t('Your email address'));?>"
 			autocomplete="on" autocapitalize="off" autocorrect="off" />
 		<span class="msg"></span><br />
-		<em><?php p($l->t('Fill in an email address to enable password recovery'));?></em>
+		<em><?php p($l->t('Fill in an email address to enable password recovery and receive notifications'));?></em>
 	</fieldset>
 </form>
 <?php