Merge branch 'master' into migration_unit_tests

48 files changed, 537 insertions, 228 deletions

diff --git a/lib/private/api.php b/lib/private/api.php
index 03d7b7382a5..c713368125c 100644
--- a/lib/private/api.php
+++ b/lib/private/api.php
@@ -33,7 +33,7 @@ class OC_API {
 	const USER_AUTH = 1;
 	const SUBADMIN_AUTH = 2;
 	const ADMIN_AUTH = 3;
-	
+
 	/**
 	 * API Response Codes
 	 */
@@ -41,13 +41,13 @@ class OC_API {
 	const RESPOND_SERVER_ERROR = 996;
 	const RESPOND_NOT_FOUND = 998;
 	const RESPOND_UNKNOWN_ERROR = 999;
-	
+
 	/**
 	 * api actions
 	 */
 	protected static $actions = array();
 	private static $logoutRequired = false;
-	
+
 	/**
 	 * registers an api call
 	 * @param string $method the http method
@@ -58,7 +58,7 @@ class OC_API {
 	 * @param array $defaults
 	 * @param array $requirements
 	 */
-	public static function register($method, $url, $action, $app, 
+	public static function register($method, $url, $action, $app,
 				$authLevel = OC_API::USER_AUTH,
 				$defaults = array(),
 				$requirements = array()) {
@@ -75,7 +75,7 @@ class OC_API {
 		}
 		self::$actions[$name][] = array('app' => $app, 'action' => $action, 'authlevel' => $authLevel);
 	}
-	
+
 	/**
 	 * handles an api call
 	 * @param array $parameters
@@ -125,7 +125,7 @@ class OC_API {
 
 		self::respond($response, $format);
 	}
-	
+
 	/**
 	 * merge the returned result objects into one response
 	 * @param array $responses
@@ -166,32 +166,31 @@ class OC_API {
 			// Maybe any that are not OC_API::RESPOND_SERVER_ERROR
 			// Merge failed responses if more than one
 			$data = array();
-			$meta = array();
 			foreach($shipped['failed'] as $failure) {
 				$data = array_merge_recursive($data, $failure['response']->getData());
 			}
 			$picked = reset($shipped['failed']);
 			$code = $picked['response']->getStatusCode();
-			$response = new OC_OCS_Result($data, $code);
+			$meta = $picked['response']->getMeta();
+			$response = new OC_OCS_Result($data, $code, $meta['message']);
 			return $response;
 		} elseif(!empty($shipped['succeeded'])) {
 			$responses = array_merge($shipped['succeeded'], $thirdparty['succeeded']);
 		} elseif(!empty($thirdparty['failed'])) {
 			// Merge failed responses if more than one
 			$data = array();
-			$meta = array();
 			foreach($thirdparty['failed'] as $failure) {
 				$data = array_merge_recursive($data, $failure['response']->getData());
 			}
 			$picked = reset($thirdparty['failed']);
 			$code = $picked['response']->getStatusCode();
-			$response = new OC_OCS_Result($data, $code);
+			$meta = $picked['response']->getMeta();
+			$response = new OC_OCS_Result($data, $code, $meta['message']);
 			return $response;
 		} else {
 			$responses = $thirdparty['succeeded'];
 		}
 		// Merge the successful responses
-		$meta = array();
 		$data = array();
 
 		foreach($responses as $app => $response) {
@@ -200,22 +199,25 @@ class OC_API {
 			} else {
 				$data = array_merge_recursive($data, $response['response']->getData());
 			}
-			$codes[] = $response['response']->getStatusCode();
+			$codes[] = array('code' => $response['response']->getStatusCode(),
+				'meta' => $response['response']->getMeta());
 		}
 
 		// Use any non 100 status codes
 		$statusCode = 100;
+		$statusMessage = null;
 		foreach($codes as $code) {
-			if($code != 100) {
-				$statusCode = $code;
+			if($code['code'] != 100) {
+				$statusCode = $code['code'];
+				$statusMessage = $code['meta']['message'];
 				break;
 			}
 		}
 
-		$result = new OC_OCS_Result($data, $statusCode);
+		$result = new OC_OCS_Result($data, $statusCode, $statusMessage);
 		return $result;
 	}
-	
+
 	/**
 	 * authenticate the api call
 	 * @param array $action the action details as supplied to OC_API::register()
@@ -261,8 +263,8 @@ class OC_API {
 				return false;
 				break;
 		}
-	} 
-	
+	}
+
 	/**
 	 * http basic auth
 	 * @return string|false (username, or false on failure)
@@ -294,7 +296,7 @@ class OC_API {
 
 		return false;
 	}
-	
+
 	/**
 	 * respond to a call
 	 * @param OC_OCS_Result $result
@@ -343,5 +345,5 @@ class OC_API {
 			}
 		}
 	}
-	
+
 }
diff --git a/lib/private/app.php b/lib/private/app.php
index 34c00e97fb9..da09021cf3f 100644
--- a/lib/private/app.php
+++ b/lib/private/app.php
@@ -63,8 +63,8 @@ class OC_App{
 		ob_start();
 		foreach( $apps as $app ) {
 			if((is_null($types) or self::isType($app, $types)) && !in_array($app, self::$loadedApps)) {
-				self::loadApp($app);
 				self::$loadedApps[] = $app;
+				self::loadApp($app);
 			}
 		}
 		ob_end_clean();
@@ -555,6 +555,10 @@ class OC_App{
 			}elseif($child->getName()=='description') {
 				$xml=(string)$child->asXML();
 				$data[$child->getName()]=substr($xml, 13, -14);//script <description> tags
+			}elseif($child->getName()=='documentation') {
+				foreach($child as $subchild) {
+					$data["documentation"][$subchild->getName()] = (string)$subchild;
+				}
 			}else{
 				$data[$child->getName()]=(string)$child;
 			}
diff --git a/lib/private/config.php b/lib/private/config.php
index caf7b1d7066..8a9d5ca6158 100644
--- a/lib/private/config.php
+++ b/lib/private/config.php
@@ -50,7 +50,7 @@ class Config {
 	protected $debugMode;
 
 	/**
-	 * @param $configDir path to the config dir, needs to end with '/'
+	 * @param string $configDir path to the config dir, needs to end with '/'
 	 */
 	public function __construct($configDir) {
 		$this->configDir = $configDir;
diff --git a/lib/private/connector/sabre/exceptionloggerplugin.php b/lib/private/connector/sabre/exceptionloggerplugin.php
new file mode 100644
index 00000000000..8e77afaf207
--- /dev/null
+++ b/lib/private/connector/sabre/exceptionloggerplugin.php
@@ -0,0 +1,50 @@
+<?php
+
+/**
+ * ownCloud
+ *
+ * @author Vincent Petry
+ * @copyright 2014 Vincent Petry <pvince81@owncloud.com>
+ *
+ * @license AGPL3
+ */
+
+class OC_Connector_Sabre_ExceptionLoggerPlugin extends Sabre_DAV_ServerPlugin
+{
+	private $appName;
+
+	/**
+	 * @param string $loggerAppName app name to use when logging
+	 */
+	public function __construct($loggerAppName = 'webdav') {
+		$this->appName = $loggerAppName;
+	}
+
+	/**
+	 * This initializes the plugin.
+	 *
+	 * This function is called by Sabre_DAV_Server, after
+	 * addPlugin is called.
+	 *
+	 * This method should set up the required event subscriptions.
+	 *
+	 * @param Sabre_DAV_Server $server
+	 * @return void
+	 */
+	public function initialize(Sabre_DAV_Server $server) {
+
+		$server->subscribeEvent('exception', array($this, 'logException'), 10);
+	}
+
+	/**
+	 * Log exception
+	 *
+	 * @internal param Exception $e exception
+	 */
+	public function logException($e) {
+		$exceptionClass = get_class($e);
+		if ($exceptionClass !== 'Sabre_DAV_Exception_NotAuthenticated') {
+			\OCP\Util::logException($this->appName, $e);
+		}
+	}
+}
diff --git a/lib/private/connector/sabre/file.php b/lib/private/connector/sabre/file.php
index 295575f0af6..ed27cef440d 100644
--- a/lib/private/connector/sabre/file.php
+++ b/lib/private/connector/sabre/file.php
@@ -64,7 +64,7 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 		}
 
 		// mark file as partial while uploading (ignored by the scanner)
-		$partpath = $this->path . '.part';
+		$partpath = $this->path . '.ocTransferId' . rand() . '.part';
 
 		// if file is located in /Shared we write the part file to the users
 		// root folder because we can't create new files in /shared
@@ -79,7 +79,7 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 				\OC_Log::write('webdav', '\OC\Files\Filesystem::file_put_contents() failed', \OC_Log::ERROR);
 				$fs->unlink($partpath);
 				// because we have no clue about the cause we can only throw back a 500/Internal Server Error
-				throw new Sabre_DAV_Exception();
+				throw new Sabre_DAV_Exception('Could not write file contents');
 			}
 		} catch (\OCP\Files\NotPermittedException $e) {
 			// a more general case - due to whatever reason the content could not be written
@@ -105,7 +105,7 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 		if ($renameOkay === false || $fileExists === false) {
 			\OC_Log::write('webdav', '\OC\Files\Filesystem::rename() failed', \OC_Log::ERROR);
 			$fs->unlink($partpath);
-			throw new Sabre_DAV_Exception();
+			throw new Sabre_DAV_Exception('Could not rename part file to final file');
 		}
 
 		// allow sync clients to send the mtime along in a header
@@ -242,8 +242,11 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 			$fileExists = $fs->file_exists($targetPath);
 			if ($renameOkay === false || $fileExists === false) {
 				\OC_Log::write('webdav', '\OC\Files\Filesystem::rename() failed', \OC_Log::ERROR);
-				$fs->unlink($targetPath);
-				throw new Sabre_DAV_Exception();
+				// only delete if an error occurred and the target file was already created
+				if ($fileExists) {
+					$fs->unlink($targetPath);
+				}
+				throw new Sabre_DAV_Exception('Could not rename part file assembled from chunks');
 			}
 
 			// allow sync clients to send the mtime along in a header
diff --git a/lib/private/connector/sabre/objecttree.php b/lib/private/connector/sabre/objecttree.php
index cd3f081f7cc..d1e179af2ec 100644
--- a/lib/private/connector/sabre/objecttree.php
+++ b/lib/private/connector/sabre/objecttree.php
@@ -38,7 +38,20 @@ class ObjectTree extends \Sabre_DAV_ObjectTree {
 			return $this->rootNode;
 		}
 
-		$info = $this->getFileView()->getFileInfo($path);
+		if (pathinfo($path, PATHINFO_EXTENSION) === 'part') {
+			// read from storage
+			$absPath = $this->getFileView()->getAbsolutePath($path);
+			list($storage, $internalPath) = Filesystem::resolvePath('/' . $absPath);
+			if ($storage) {
+				$scanner = $storage->getScanner($internalPath);
+				// get data directly
+				$info = $scanner->getData($internalPath);
+			}
+		}
+		else {
+			// read from cache
+			$info = $this->getFileView()->getFileInfo($path);
+		}
 
 		if (!$info) {
 			throw new \Sabre_DAV_Exception_NotFound('File with name ' . $path . ' could not be located');
diff --git a/lib/private/files.php b/lib/private/files.php
index 6ffa14c0d91..8ce632013cf 100644
--- a/lib/private/files.php
+++ b/lib/private/files.php
@@ -83,7 +83,7 @@ class OC_Files {
 			if ($basename) {
 				$name = $basename . '.zip';
 			} else {
-				$name = 'owncloud.zip';
+				$name = 'download.zip';
 			}
 			
 			set_time_limit($executionTime);
@@ -115,12 +115,7 @@ class OC_Files {
 		}
 		OC_Util::obEnd();
 		if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
-			if ( preg_match( "/MSIE/", $_SERVER["HTTP_USER_AGENT"] ) ) {
-				header( 'Content-Disposition: attachment; filename="' . rawurlencode($name) . '"' );
-			} else {
-				header( 'Content-Disposition: attachment; filename*=UTF-8\'\'' . rawurlencode($name)
-													 . '; filename="' . rawurlencode($name) . '"' );
-			}
+			OC_Response::setContentDispositionHeader($name, 'attachment');
 			header('Content-Transfer-Encoding: binary');
 			OC_Response::disableCaching();
 			if ($zip) {
diff --git a/lib/private/files/cache/cache.php b/lib/private/files/cache/cache.php
index 8e682a96b75..1e7936ca26d 100644
--- a/lib/private/files/cache/cache.php
+++ b/lib/private/files/cache/cache.php
@@ -178,7 +178,7 @@ class Cache {
 				if ($file['storage_mtime'] == 0) {
 					$file['storage_mtime'] = $file['mtime'];
 				}
-				if ($file['encrypted']) {
+				if ($file['encrypted'] or ($file['unencrypted_size'] > 0 and $file['mimetype'] === 'httpd/unix-directory')) {
 					$file['encrypted_size'] = $file['size'];
 					$file['size'] = $file['unencrypted_size'];
 				}
@@ -511,22 +511,34 @@ class Cache {
 		$entry = $this->get($path);
 		if ($entry && $entry['mimetype'] === 'httpd/unix-directory') {
 			$id = $entry['fileid'];
-			$sql = 'SELECT SUM(`size`) AS f1, MIN(`size`) AS f2 FROM `*PREFIX*filecache` '.
+			$sql = 'SELECT SUM(`size`) AS f1, MIN(`size`) AS f2, ' .
+				'SUM(`unencrypted_size`) AS f3 ' .
+				'FROM `*PREFIX*filecache` ' .
 				'WHERE `parent` = ? AND `storage` = ?';
 			$result = \OC_DB::executeAudited($sql, array($id, $this->getNumericStorageId()));
 			if ($row = $result->fetchRow()) {
-				list($sum, $min) = array_values($row);
+				list($sum, $min, $unencryptedSum) = array_values($row);
 				$sum = (int)$sum;
 				$min = (int)$min;
+				$unencryptedSum = (int)$unencryptedSum;
 				if ($min === -1) {
 					$totalSize = $min;
 				} else {
 					$totalSize = $sum;
 				}
+				$update = array();
 				if ($entry['size'] !== $totalSize) {
-					$this->update($id, array('size' => $totalSize));
+					$update['size'] = $totalSize;
+				}
+				if ($entry['unencrypted_size'] !== $unencryptedSum) {
+					$update['unencrypted_size'] = $unencryptedSum;
+				}
+				if (count($update) > 0) {
+					$this->update($id, $update);
+				}
+				if ($totalSize !== -1 and $unencryptedSum > 0) {
+					$totalSize = $unencryptedSum;
 				}
-				
 			}
 		}
 		return $totalSize;
diff --git a/lib/private/files/cache/homecache.php b/lib/private/files/cache/homecache.php
index 18dfbfe3191..71bb944da71 100644
--- a/lib/private/files/cache/homecache.php
+++ b/lib/private/files/cache/homecache.php
@@ -16,7 +16,7 @@ class HomeCache extends Cache {
 	 * @return int
 	 */
 	public function calculateFolderSize($path) {
-		if ($path !== '/' and $path !== '') {
+		if ($path !== '/' and $path !== '' and $path !== 'files') {
 			return parent::calculateFolderSize($path);
 		}
 
diff --git a/lib/private/files/cache/scanner.php b/lib/private/files/cache/scanner.php
index a8c069ee99f..92a4c01841b 100644
--- a/lib/private/files/cache/scanner.php
+++ b/lib/private/files/cache/scanner.php
@@ -122,7 +122,7 @@ class Scanner extends BasicEmitter {
 							$propagateETagChange = true;
 						}
 						// only reuse data if the file hasn't explicitly changed
-						if (isset($data['mtime']) && isset($cacheData['mtime']) && $data['mtime'] === $cacheData['mtime']) {
+						if (isset($data['storage_mtime']) && isset($cacheData['storage_mtime']) && $data['storage_mtime'] === $cacheData['storage_mtime']) {
 							if (($reuseExisting & self::REUSE_SIZE) && ($data['size'] === -1)) {
 								$data['size'] = $cacheData['size'];
 							}
diff --git a/lib/private/files/cache/storage.php b/lib/private/files/cache/storage.php
index 5657cf06e12..5b1b30176e8 100644
--- a/lib/private/files/cache/storage.php
+++ b/lib/private/files/cache/storage.php
@@ -70,4 +70,23 @@ class Storage {
 			return false;
 		}
 	}
+
+	/**
+	 * remove the entry for the storage
+	 *
+	 * @param string $storageId
+	 */
+	public static function remove($storageId) {
+		$storageCache = new Storage($storageId);
+		$numericId = $storageCache->getNumericId();
+
+		if (strlen($storageId) > 64) {
+			$storageId = md5($storageId);
+		}
+		$sql = 'DELETE FROM `*PREFIX*storages` WHERE `id` = ?';
+		\OC_DB::executeAudited($sql, array($storageId));
+
+		$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `storage` = ?';
+		\OC_DB::executeAudited($sql, array($numericId));
+	}
 }
diff --git a/lib/private/files/cache/watcher.php b/lib/private/files/cache/watcher.php
index 58f624c8990..251ecbe7071 100644
--- a/lib/private/files/cache/watcher.php
+++ b/lib/private/files/cache/watcher.php
@@ -40,7 +40,7 @@ class Watcher {
 	 * check $path for updates
 	 *
 	 * @param string $path
-	 * @return boolean true if path was updated, false otherwise
+	 * @return boolean | array true if path was updated, otherwise the cached data is returned
 	 */
 	public function checkUpdate($path) {
 		$cachedEntry = $this->cache->get($path);
@@ -56,7 +56,7 @@ class Watcher {
 			$this->cache->correctFolderSize($path);
 			return true;
 		}
-		return false;
+		return $cachedEntry;
 	}
 
 	/**
diff --git a/lib/private/files/storage/wrapper/quota.php b/lib/private/files/storage/wrapper/quota.php
index 43016e0892f..a430e3e4617 100644
--- a/lib/private/files/storage/wrapper/quota.php
+++ b/lib/private/files/storage/wrapper/quota.php
@@ -95,7 +95,7 @@ class Quota extends Wrapper {
 	public function fopen($path, $mode) {
 		$source = $this->storage->fopen($path, $mode);
 		$free = $this->free_space('');
-		if ($free >= 0 && $mode !== 'r') {
+		if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
 			return \OC\Files\Stream\Quota::wrap($source, $free);
 		} else {
 			return $source;
diff --git a/lib/private/files/type/detection.php b/lib/private/files/type/detection.php
index d7cc9ebbf4e..11e439032ce 100644
--- a/lib/private/files/type/detection.php
+++ b/lib/private/files/type/detection.php
@@ -72,11 +72,12 @@ class Detection {
 			and function_exists('finfo_file') and $finfo = finfo_open(FILEINFO_MIME)
 		) {
 			$info = @strtolower(finfo_file($finfo, $path));
+			finfo_close($finfo);
 			if ($info) {
 				$mimeType = substr($info, 0, strpos($info, ';'));
 				return empty($mimeType) ? 'application/octet-stream' : $mimeType;
 			}
-			finfo_close($finfo);
+
 		}
 		$isWrapped = (strpos($path, '://') !== false) and (substr($path, 0, 7) === 'file://');
 		if (!$isWrapped and $mimeType === 'application/octet-stream' && function_exists("mime_content_type")) {
diff --git a/lib/private/files/view.php b/lib/private/files/view.php
index ac45a881331..d97544b865e 100644
--- a/lib/private/files/view.php
+++ b/lib/private/files/view.php
@@ -336,6 +336,19 @@ class View {
 	}
 
 	public function unlink($path) {
+		if ($path === '' || $path === '/') {
+			// do not allow deleting the root
+			return false;
+		}
+		$postFix = (substr($path, -1, 1) === '/') ? '/' : '';
+		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
+		list($storage, $internalPath) = Filesystem::resolvePath($absolutePath . $postFix);
+		if (!$internalPath || $internalPath === '' || $internalPath === '/') {
+			// do not allow deleting the storage's root / the mount point
+			// because for some storages it might delete the whole contents
+			// but isn't supposed to work that way
+			return false;
+		}
 		return $this->basicOperation('unlink', $path, array('delete'));
 	}
 
@@ -788,6 +801,7 @@ class View {
 		 * @var string $internalPath
 		 */
 		list($storage, $internalPath) = Filesystem::resolvePath($path);
+		$data = null;
 		if ($storage) {
 			$cache = $storage->getCache($internalPath);
 			$permissionsCache = $storage->getPermissionsCache($internalPath);
@@ -798,10 +812,12 @@ class View {
 				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
 			} else {
 				$watcher = $storage->getWatcher($internalPath);
-				$watcher->checkUpdate($internalPath);
+				$data = $watcher->checkUpdate($internalPath);
 			}
 
-			$data = $cache->get($internalPath);
+			if (!is_array($data)) {
+				$data = $cache->get($internalPath);
+			}
 
 			if ($data and $data['fileid']) {
 				if ($includeMountPoints and $data['mimetype'] === 'httpd/unix-directory') {
diff --git a/lib/private/helper.php b/lib/private/helper.php
index 4fe3097af26..580f81acc62 100644
--- a/lib/private/helper.php
+++ b/lib/private/helper.php
@@ -161,6 +161,7 @@ class OC_Helper {
 			'application/vnd.oasis.opendocument.text-template' => 'x-office/document',
 			'application/vnd.oasis.opendocument.text-web' => 'x-office/document',
 			'application/vnd.oasis.opendocument.text-master' => 'x-office/document',
+			'application/mspowerpoint' => 'x-office/presentation',
 			'application/vnd.ms-powerpoint' => 'x-office/presentation',
 			'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'x-office/presentation',
 			'application/vnd.openxmlformats-officedocument.presentationml.template' => 'x-office/presentation',
@@ -171,6 +172,7 @@ class OC_Helper {
 			'application/vnd.ms-powerpoint.slideshow.macroEnabled.12' => 'x-office/presentation',
 			'application/vnd.oasis.opendocument.presentation' => 'x-office/presentation',
 			'application/vnd.oasis.opendocument.presentation-template' => 'x-office/presentation',
+			'application/msexcel' => 'x-office/spreadsheet',
 			'application/vnd.ms-excel' => 'x-office/spreadsheet',
 			'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'x-office/spreadsheet',
 			'application/vnd.openxmlformats-officedocument.spreadsheetml.template' => 'x-office/spreadsheet',
@@ -180,6 +182,7 @@ class OC_Helper {
 			'application/vnd.ms-excel.sheet.binary.macroEnabled.12' => 'x-office/spreadsheet',
 			'application/vnd.oasis.opendocument.spreadsheet' => 'x-office/spreadsheet',
 			'application/vnd.oasis.opendocument.spreadsheet-template' => 'x-office/spreadsheet',
+			'application/msaccess' => 'database',
 		);
 
 		if (isset($alias[$mimetype])) {
@@ -445,29 +448,6 @@ class OC_Helper {
 	 *
 	 */
 
-	//FIXME: should also check for value validation (i.e. the email is an email).
-	public static function init_var($s, $d = "") {
-		$r = $d;
-		if (isset($_REQUEST[$s]) && !empty($_REQUEST[$s])) {
-			$r = OC_Util::sanitizeHTML($_REQUEST[$s]);
-		}
-
-		return $r;
-	}
-
-	/**
-	 * returns "checked"-attribute if request contains selected radio element
-	 * OR if radio element is the default one -- maybe?
-	 *
-	 * @param string $s Name of radio-button element name
-	 * @param string $v Value of current radio-button element
-	 * @param string $d Value of default radio-button element
-	 */
-	public static function init_radio($s, $v, $d) {
-		if ((isset($_REQUEST[$s]) && $_REQUEST[$s] == $v) || (!isset($_REQUEST[$s]) && $v == $d))
-			print "checked=\"checked\" ";
-	}
-
 	/**
 	 * detect if a given program is found in the search PATH
 	 *
@@ -828,23 +808,39 @@ class OC_Helper {
 	 * @return number of bytes representing
 	 */
 	public static function maxUploadFilesize($dir) {
-		$upload_max_filesize = OCP\Util::computerFileSize(ini_get('upload_max_filesize'));
-		$post_max_size = OCP\Util::computerFileSize(ini_get('post_max_size'));
-		$freeSpace = \OC\Files\Filesystem::free_space($dir);
-		if ((int)$upload_max_filesize === 0 and (int)$post_max_size === 0) {
-			$maxUploadFilesize = \OC\Files\SPACE_UNLIMITED;
-		} elseif ((int)$upload_max_filesize === 0 or (int)$post_max_size === 0) {
-			$maxUploadFilesize = max($upload_max_filesize, $post_max_size); //only the non 0 value counts
-		} else {
-			$maxUploadFilesize = min($upload_max_filesize, $post_max_size);
-		}
+		return min(self::freeSpace($dir), self::uploadLimit());
+	}
 
+	/**
+	 * Calculate free space left within user quota
+	 * 
+	 * @param $dir the current folder where the user currently operates
+	 * @return number of bytes representing
+	 */
+	public static function freeSpace($dir) {
+		$freeSpace = \OC\Files\Filesystem::free_space($dir);
 		if ($freeSpace !== \OC\Files\SPACE_UNKNOWN) {
 			$freeSpace = max($freeSpace, 0);
+			return $freeSpace;
+		} else {
+			return INF;
+		}
+	}
 
-			return min($maxUploadFilesize, $freeSpace);
+	/**
+	 * Calculate PHP upload limit
+	 *
+	 * @return PHP upload file size limit
+	 */
+	public static function uploadLimit() {
+		$upload_max_filesize = OCP\Util::computerFileSize(ini_get('upload_max_filesize'));
+		$post_max_size = OCP\Util::computerFileSize(ini_get('post_max_size'));
+		if ((int)$upload_max_filesize === 0 and (int)$post_max_size === 0) {
+			return INF;
+		} elseif ((int)$upload_max_filesize === 0 or (int)$post_max_size === 0) {
+			return max($upload_max_filesize, $post_max_size); //only the non 0 value counts
 		} else {
-			return $maxUploadFilesize;
+			return min($upload_max_filesize, $post_max_size);
 		}
 	}
 
@@ -858,11 +854,13 @@ class OC_Helper {
 		if (!function_exists($function_name)) {
 			return false;
 		}
-		$disabled = explode(', ', ini_get('disable_functions'));
+		$disabled = explode(',', ini_get('disable_functions'));
+		$disabled = array_map('trim', $disabled);
 		if (in_array($function_name, $disabled)) {
 			return false;
 		}
-		$disabled = explode(', ', ini_get('suhosin.executor.func.blacklist'));
+		$disabled = explode(',', ini_get('suhosin.executor.func.blacklist'));
+		$disabled = array_map('trim', $disabled);
 		if (in_array($function_name, $disabled)) {
 			return false;
 		}
diff --git a/lib/private/image.php b/lib/private/image.php
index 7761a3c7737..91a9f91e1d6 100644
--- a/lib/private/image.php
+++ b/lib/private/image.php
@@ -409,14 +409,14 @@ class OC_Image {
 
 	/**
 	* @brief Loads an image from a local file.
-	* @param $imageref The path to a local file.
+	* @param $imagePath The path to a local file.
 	* @returns An image resource or false on error
 	*/
 	public function loadFromFile($imagePath=false) {
 		// exif_imagetype throws "read error!" if file is less than 12 byte
 		if(!@is_file($imagePath) || !file_exists($imagePath) || filesize($imagePath) < 12 || !is_readable($imagePath)) {
 			// Debug output disabled because this method is tried before loadFromBase64?
-			OC_Log::write('core', 'OC_Image->loadFromFile, couldn\'t load: '.$imagePath, OC_Log::DEBUG);
+			OC_Log::write('core', 'OC_Image->loadFromFile, couldn\'t load: ' . (string) urlencode($imagePath), OC_Log::DEBUG);
 			return false;
 		}
 		$iType = exif_imagetype($imagePath);
diff --git a/lib/private/installer.php b/lib/private/installer.php
index 8375b231e9b..835b6b4c01a 100644
--- a/lib/private/installer.php
+++ b/lib/private/installer.php
@@ -407,6 +407,9 @@ class OC_Installer{
 			include OC_App::getAppPath($app)."/appinfo/install.php";
 		}
 		$info=OC_App::getAppInfo($app);
+		if (is_null($info)) {
+			return false;
+		}
 		OC_Appconfig::setValue($app, 'installed_version', OC_App::getAppVersion($app));
 
 		//set remote/public handelers
diff --git a/lib/private/json.php b/lib/private/json.php
index 6a9e5a2df5e..5c5d7e3a3da 100644
--- a/lib/private/json.php
+++ b/lib/private/json.php
@@ -65,6 +65,20 @@ class OC_JSON{
 	}
 
 	/**
+	 * Check is a given user exists - send json error msg if not
+	 * @param string $user
+	 */
+	public static function checkUserExists($user) {
+		if (!OCP\User::userExists($user)) {
+			$l = OC_L10N::get('lib');
+			OCP\JSON::error(array('data' => array('message' => $l->t('Unknown user'))));
+			exit;
+		}
+	}
+
+
+
+	/**
 	* Check if the user is a subadmin, send json error msg if not
 	*/
 	public static function checkSubAdminUser() {
diff --git a/lib/private/l10n.php b/lib/private/l10n.php
index 98665c84c55..1aa1dc5ea28 100644
--- a/lib/private/l10n.php
+++ b/lib/private/l10n.php
@@ -132,10 +132,10 @@ class OC_L10N implements \OCP\IL10N {
 			$i18ndir = self::findI18nDir($app);
 			// Localization is in /l10n, Texts are in $i18ndir
 			// (Just no need to define date/time format etc. twice)
-			if((OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC_App::getAppPath($app).'/l10n/')
-				|| OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/core/l10n/')
+			if((OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/core/l10n/')
 				|| OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/lib/l10n/')
 				|| OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/settings')
+				|| OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC_App::getAppPath($app).'/l10n/')
 				)
 				&& file_exists($i18ndir.$lang.'.php')) {
 				// Include the file, save the data from $CONFIG
diff --git a/lib/private/legacy/config.php b/lib/private/legacy/config.php
index c457979113e..ab67c8d3020 100644
--- a/lib/private/legacy/config.php
+++ b/lib/private/legacy/config.php
@@ -38,7 +38,6 @@
  * This class is responsible for reading and writing config.php, the very basic
  * configuration file of ownCloud.
  */
-OC_Config::$object = new \OC\Config(OC::$SERVERROOT.'/config/');
 class OC_Config {
 
 	/**
diff --git a/lib/private/log/errorhandler.php b/lib/private/log/errorhandler.php
index 69cb960de91..1dde6b507fc 100644
--- a/lib/private/log/errorhandler.php
+++ b/lib/private/log/errorhandler.php
@@ -14,10 +14,23 @@ class ErrorHandler {
 	/** @var LoggerInterface */
 	private static $logger;
 
-	public static function register() {
+	/**
+	 * @brief remove password in URLs
+	 * @param string $msg
+	 * @return string
+	 */
+	protected static function removePassword($msg) {
+		return preg_replace('/\/\/(.*):(.*)@/', '//xxx:xxx@', $msg);
+	}
+
+	public static function register($debug=false) {
 		$handler = new ErrorHandler();
 
-		set_error_handler(array($handler, 'onError'));
+		if ($debug) {
+			set_error_handler(array($handler, 'onAll'), E_ALL);
+		} else {
+			set_error_handler(array($handler, 'onError'));
+		}
 		register_shutdown_function(array($handler, 'onShutdown'));
 		set_exception_handler(array($handler, 'onException'));
 	}
@@ -32,14 +45,14 @@ class ErrorHandler {
 		if($error && self::$logger) {
 			//ob_end_clean();
 			$msg = $error['message'] . ' at ' . $error['file'] . '#' . $error['line'];
-			self::$logger->critical($msg, array('app' => 'PHP'));
+			self::$logger->critical(self::removePassword($msg), array('app' => 'PHP'));
 		}
 	}
 
 	// Uncaught exception handler
 	public static function onException($exception) {
 		$msg = $exception->getMessage() . ' at ' . $exception->getFile() . '#' . $exception->getLine();
-		self::$logger->critical($msg, array('app' => 'PHP'));
+		self::$logger->critical(self::removePassword($msg), array('app' => 'PHP'));
 	}
 
 	//Recoverable errors handler
@@ -48,7 +61,15 @@ class ErrorHandler {
 			return;
 		}
 		$msg = $message . ' at ' . $file . '#' . $line;
-		self::$logger->warning($msg, array('app' => 'PHP'));
+		self::$logger->error(self::removePassword($msg), array('app' => 'PHP'));
+
+	}
+
+	//Recoverable handler which catch all errors, warnings and notices
+	public static function onAll($number, $message, $file, $line) {
+		$msg = $message . ' at ' . $file . '#' . $line;
+		self::$logger->debug(self::removePassword($msg), array('app' => 'PHP'));
 
 	}
+
 }
diff --git a/lib/private/log/owncloud.php b/lib/private/log/owncloud.php
index 4c86d0e45e0..3590bbd436d 100644
--- a/lib/private/log/owncloud.php
+++ b/lib/private/log/owncloud.php
@@ -69,7 +69,6 @@ class OC_Log_Owncloud {
 			}
 			$time = new DateTime(null, $timezone);
 			// remove username/passswords from URLs before writing the to the log file
-			$message = preg_replace('/\/\/(.*):(.*)@/', '//xxx:xxx@', $message);
 			$entry=array('app'=>$app, 'message'=>$message, 'level'=>$level, 'time'=> $time->format($format));
 			$entry = json_encode($entry);
 			$handle = @fopen(self::$logFile, 'a');
diff --git a/lib/private/memcache/apc.php b/lib/private/memcache/apc.php
index 575ee4427db..332bbfead00 100644
--- a/lib/private/memcache/apc.php
+++ b/lib/private/memcache/apc.php
@@ -9,15 +9,8 @@
 namespace OC\Memcache;
 
 class APC extends Cache {
-	/**
-	 * entries in APC gets namespaced to prevent collisions between owncloud instances and users
-	 */
-	protected function getNameSpace() {
-		return $this->prefix;
-	}
-
 	public function get($key) {
-		$result = apc_fetch($this->getNamespace() . $key, $success);
+		$result = apc_fetch($this->getPrefix() . $key, $success);
 		if (!$success) {
 			return null;
 		}
@@ -25,31 +18,29 @@ class APC extends Cache {
 	}
 
 	public function set($key, $value, $ttl = 0) {
-		return apc_store($this->getNamespace() . $key, $value, $ttl);
+		return apc_store($this->getPrefix() . $key, $value, $ttl);
 	}
 
 	public function hasKey($key) {
-		return apc_exists($this->getNamespace() . $key);
+		return apc_exists($this->getPrefix() . $key);
 	}
 
 	public function remove($key) {
-		return apc_delete($this->getNamespace() . $key);
+		return apc_delete($this->getPrefix() . $key);
 	}
 
 	public function clear($prefix = '') {
-		$ns = $this->getNamespace() . $prefix;
-		$cache = apc_cache_info('user');
-		foreach ($cache['cache_list'] as $entry) {
-			if (strpos($entry['info'], $ns) === 0) {
-				apc_delete($entry['info']);
-			}
-		}
-		return true;
+		$ns = $this->getPrefix() . $prefix;
+		$ns = preg_quote($ns, '/');
+		$iter = new \APCIterator('user', '/^' . $ns . '/');
+		return apc_delete($iter);
 	}
 
 	static public function isAvailable() {
 		if (!extension_loaded('apc')) {
 			return false;
+		} elseif (!ini_get('apc.enabled')) {
+			return false;
 		} elseif (!ini_get('apc.enable_cli') && \OC::$CLI) {
 			return false;
 		} else {
diff --git a/lib/private/memcache/apcu.php b/lib/private/memcache/apcu.php
index dac0f5f208a..7f780f32718 100644
--- a/lib/private/memcache/apcu.php
+++ b/lib/private/memcache/apcu.php
@@ -9,13 +9,6 @@
 namespace OC\Memcache;
 
 class APCu extends APC {
-	public function clear($prefix = '') {
-		$ns = $this->getNamespace() . $prefix;
-		$ns = preg_quote($ns, '/');
-		$iter = new \APCIterator('user', '/^'.$ns.'/');
-		return apc_delete($iter);
-	}
-
 	static public function isAvailable() {
 		if (!extension_loaded('apcu')) {
 			return false;
diff --git a/lib/private/memcache/cache.php b/lib/private/memcache/cache.php
index 0ad1cc7ec03..03671b3f240 100644
--- a/lib/private/memcache/cache.php
+++ b/lib/private/memcache/cache.php
@@ -18,7 +18,7 @@ abstract class Cache implements \ArrayAccess {
 	 * @param string $prefix
 	 */
 	public function __construct($prefix = '') {
-		$this->prefix = \OC_Util::getInstanceId() . '/' . $prefix;
+		$this->prefix = $prefix;
 	}
 
 	public function getPrefix() {
diff --git a/lib/private/memcache/factory.php b/lib/private/memcache/factory.php
index fde7d947567..334cf9a1f0e 100644
--- a/lib/private/memcache/factory.php
+++ b/lib/private/memcache/factory.php
@@ -8,7 +8,21 @@
 
 namespace OC\Memcache;
 
-class Factory {
+use \OCP\ICacheFactory;
+
+class Factory implements ICacheFactory {
+	/**
+	 * @var string $globalPrefix
+	 */
+	private $globalPrefix;
+
+	/**
+	 * @param string $globalPrefix
+	 */
+	public function __construct($globalPrefix) {
+		$this->globalPrefix = $globalPrefix;
+	}
+
 	/**
 	 * get a cache instance, will return null if no backend is available
 	 *
@@ -16,6 +30,7 @@ class Factory {
 	 * @return \OC\Memcache\Cache
 	 */
 	function create($prefix = '') {
+		$prefix = $this->globalPrefix . '/' . $prefix;
 		if (XCache::isAvailable()) {
 			return new XCache($prefix);
 		} elseif (APCu::isAvailable()) {
diff --git a/lib/private/memcache/memcached.php b/lib/private/memcache/memcached.php
index 978e6c2eff1..075828eebad 100644
--- a/lib/private/memcache/memcached.php
+++ b/lib/private/memcache/memcached.php
@@ -18,8 +18,16 @@ class Memcached extends Cache {
 		parent::__construct($prefix);
 		if (is_null(self::$cache)) {
 			self::$cache = new \Memcached();
-			list($host, $port) = \OC_Config::getValue('memcached_server', array('localhost', 11211));
-			self::$cache->addServer($host, $port);
+			$servers = \OC_Config::getValue('memcached_servers');
+			if (!$servers) {
+				$server = \OC_Config::getValue('memcached_server');
+				if ($server) {
+					$servers = array($server);
+				} else {
+					$servers = array(array('localhost', 11211));
+				}
+			}
+			self::$cache->addServers($servers);
 		}
 	}
 
diff --git a/lib/private/mimetypes.list.php b/lib/private/mimetypes.list.php
index 740982910e0..40fb1d2d97d 100644
--- a/lib/private/mimetypes.list.php
+++ b/lib/private/mimetypes.list.php
@@ -21,94 +21,91 @@
 */
 
 /**
- * list of mimetypes by extension
+ * Array mapping file extensions to mimetypes (in alphabetical order).
  */
-
 return array(
+	'accdb'=>'application/msaccess',
+	'ai' => 'application/illustrator',
+	'avi'=>'video/x-msvideo',
+	'bash' => 'text/x-shellscript',
+	'blend'=>'application/x-blender',
+	'cc' => 'text/x-c',
+	'cdr' => 'application/coreldraw',
+	'cpp' => 'text/x-c++src',
 	'css'=>'text/css',
+	'c' => 'text/x-c',
+	'c++' => 'text/x-c++src',
+	'doc'=>'application/msword',
+	'docx'=>'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+	'dot'=>'application/msword',
+	'dotx'=>'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
+	'dv'=>'video/dv',
+	'epub' => 'application/epub+zip',
+	'exe'=>'application/x-ms-dos-executable',
 	'flac'=>'audio/flac',
 	'gif'=>'image/gif',
-	'gzip'=>'application/x-gzip',
 	'gz'=>'application/x-gzip',
+	'gzip'=>'application/x-gzip',
 	'html'=>'text/html',
 	'htm'=>'text/html',
-	'ics'=>'text/calendar',
 	'ical'=>'text/calendar',
+	'ics'=>'text/calendar',
+	'impress' => 'text/impress',
 	'jpeg'=>'image/jpeg',
 	'jpg'=>'image/jpeg',
 	'js'=>'application/javascript',
+	'keynote'=>'application/x-iwork-keynote-sffkey',
+	'kra'=>'application/x-krita',
+	'm2t'=>'video/mp2t',
+	'm4v'=>'video/mp4',
+	'markdown' => 'text/markdown',
+	'mdown' => 'text/markdown',
+	'md' => 'text/markdown',
+	'mdb'=>'application/msaccess',
+	'mdwn' => 'text/markdown',
+	'mobi' => 'application/x-mobipocket-ebook',
+	'mov'=>'video/quicktime',
+	'mp3'=>'audio/mpeg',
+	'mp4'=>'video/mp4',
+	'mpeg'=>'video/mpeg',
+	'mpg'=>'video/mpeg',
+	'msi'=>'application/x-msi',
+	'numbers'=>'application/x-iwork-numbers-sffnumbers',
+	'odg'=>'application/vnd.oasis.opendocument.graphics',
+	'odp'=>'application/vnd.oasis.opendocument.presentation',
+	'ods'=>'application/vnd.oasis.opendocument.spreadsheet',
+	'odt'=>'application/vnd.oasis.opendocument.text',
 	'oga'=>'audio/ogg',
 	'ogg'=>'audio/ogg',
 	'ogv'=>'video/ogg',
+	'pages'=>'application/x-iwork-pages-sffpages',
 	'pdf'=>'application/pdf',
+	'php'=>'application/x-php',
+	'pl'=>'application/x-pearl',
 	'png'=>'image/png',
+	'ppt'=>'application/mspowerpoint',
+	'pptx'=>'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+	'psd'=>'application/x-photoshop',
+	'py'=>'text/x-script.python',
+	'reveal' => 'text/reveal',
+	'sgf' => 'application/sgf',
+	'sh-lib' => 'text/x-shellscript',
+	'sh' => 'text/x-shellscript',
 	'svg'=>'image/svg+xml',
 	'tar'=>'application/x-tar',
-	'tgz'=>'application/x-compressed',
 	'tar.gz'=>'application/x-compressed',
-	'tif'=>'image/tiff',
+	'tgz'=>'application/x-compressed',
 	'tiff'=>'image/tiff',
+	'tif'=>'image/tiff',
 	'txt'=>'text/plain',
-	'zip'=>'application/zip',
+	'vcard' => 'text/vcard',
+	'vcf' => 'text/vcard',
 	'wav'=>'audio/wav',
-	'odt'=>'application/vnd.oasis.opendocument.text',
-	'ods'=>'application/vnd.oasis.opendocument.spreadsheet',
-	'odg'=>'application/vnd.oasis.opendocument.graphics',
-	'odp'=>'application/vnd.oasis.opendocument.presentation',
-	'pages'=>'application/x-iwork-pages-sffpages',
-	'numbers'=>'application/x-iwork-numbers-sffnumbers',
-	'keynote'=>'application/x-iwork-keynote-sffkey',
-	'kra'=>'application/x-krita',
-	'mp3'=>'audio/mpeg',
-	'doc'=>'application/msword',
-	'docx'=>'application/msword',
-	'xls'=>'application/msexcel',
-	'xlsx'=>'application/msexcel',
-	'php'=>'application/x-php',
-	'exe'=>'application/x-ms-dos-executable',
-	'pl'=>'application/x-pearl',
-	'py'=>'application/x-python',
-	'blend'=>'application/x-blender',
-	'xcf'=>'application/x-gimp',
-	'psd'=>'application/x-photoshop',
-	'xml'=>'application/xml',
-	'avi'=>'video/x-msvideo',
-	'dv'=>'video/dv',
-	'm2t'=>'video/mp2t',
-	'mp4'=>'video/mp4',
-	'm4v'=>'video/mp4',
-	'mpg'=>'video/mpeg',
-	'mpeg'=>'video/mpeg',
-	'mov'=>'video/quicktime',
 	'webm'=>'video/webm',
 	'wmv'=>'video/x-ms-asf',
-	'py'=>'text/x-script.python',
-	'vcf' => 'text/vcard',
-	'vcard' => 'text/vcard',
-	'doc'=>'application/msword',
-	'docx'=>'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+	'xcf'=>'application/x-gimp',
 	'xls'=>'application/msexcel',
 	'xlsx'=>'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
-	'ppt'=>'application/mspowerpoint',
-	'pptx'=>'application/vnd.openxmlformats-officedocument.presentationml.presentation',
-	'sgf' => 'application/sgf',
-	'cdr' => 'application/coreldraw',
-	'impress' => 'text/impress',
-	'ai' => 'application/illustrator',
-	'epub' => 'application/epub+zip',
-	'mobi' => 'application/x-mobipocket-ebook',
-	'exe' => 'application',
-	'msi' => 'application',
-	'md' => 'text/markdown',
-	'markdown' => 'text/markdown',
-	'mdown' => 'text/markdown',
-	'mdwn' => 'text/markdown',
-	'reveal' => 'text/reveal',
-	'c' => 'text/x-c',
-	'cc' => 'text/x-c',
-	'cpp' => 'text/x-c++src',
-	'c++' => 'text/x-c++src',
-	'sh' => 'text/x-shellscript',
-	'bash' => 'text/x-shellscript',
-	'sh-lib' => 'text/x-shellscript',
+	'xml'=>'application/xml',
+	'zip'=>'application/zip',
 );
diff --git a/lib/private/ocs/result.php b/lib/private/ocs/result.php
index 84f06fa01c7..9f14e8da7e8 100644
--- a/lib/private/ocs/result.php
+++ b/lib/private/ocs/result.php
@@ -29,7 +29,13 @@ class OC_OCS_Result{
 	 * @param $data mixed the data to return
 	 */
 	public function __construct($data=null, $code=100, $message=null) {
-		$this->data = $data;
+		if ($data === null) {
+			$this->data = array();
+		} elseif (!is_array($data)) {
+			$this->data = array($this->data);
+		} else {
+			$this->data = $data;
+		}
 		$this->statusCode = $code;
 		$this->message = $message;
 	}
@@ -49,7 +55,7 @@ class OC_OCS_Result{
 	public function setItemsPerPage(int $items) {
 		$this->perPage = $items;
 	}
-	
+
 	/**
 	 * get the status code
 	 * @return int
@@ -57,7 +63,7 @@ class OC_OCS_Result{
 	public function getStatusCode() {
 		return $this->statusCode;
 	}
-	
+
 	/**
 	 * get the meta data for the result
 	 * @return array
@@ -76,15 +82,15 @@ class OC_OCS_Result{
 		return $meta;
 
 	}
-	
+
 	/**
 	 * get the result data
-	 * @return array|string|int 
+	 * @return array
 	 */
 	public function getData() {
 		return $this->data;
 	}
-	
+
 	/**
 	 * return bool if the method succedded
 	 * @return bool
diff --git a/lib/private/preview/movies.php b/lib/private/preview/movies.php
index ac771deb413..71cd3bae057 100644
--- a/lib/private/preview/movies.php
+++ b/lib/private/preview/movies.php
@@ -18,7 +18,7 @@ function findBinaryPath($program) {
 
 // movie preview is currently not supported on Windows
 if (!\OC_Util::runningOnWindows()) {
-	$isExecEnabled = !in_array('exec', explode(', ', ini_get('disable_functions')));
+	$isExecEnabled = \OC_Helper::is_function_enabled('exec');
 	$ffmpegBinary = null;
 	$avconvBinary = null;
 
diff --git a/lib/private/preview/office.php b/lib/private/preview/office.php
index 318ab51f851..884b6e7dc9b 100644
--- a/lib/private/preview/office.php
+++ b/lib/private/preview/office.php
@@ -6,8 +6,8 @@
  * See the COPYING-README file.
  */
 //both, libreoffice backend and php fallback, need imagick
-if (extension_loaded('imagick')) {
-	$isShellExecEnabled = !in_array('shell_exec', explode(', ', ini_get('disable_functions')));
+if (extension_loaded('imagick') && count(\Imagick::queryFormats("PDF")) === 1) {
+	$isShellExecEnabled = \OC_Helper::is_function_enabled('shell_exec');
 
 	// LibreOffice preview is currently not supported on Windows
 	if (!\OC_Util::runningOnWindows()) {
diff --git a/lib/private/preview/pdf.php b/lib/private/preview/pdf.php
index cc974b68818..572b8788ac9 100644
--- a/lib/private/preview/pdf.php
+++ b/lib/private/preview/pdf.php
@@ -7,7 +7,7 @@
  */
 namespace OC\Preview;
 
-if (extension_loaded('imagick')) {
+if (extension_loaded('imagick') && count(\Imagick::queryFormats("PDF")) === 1) {
 
 	class PDF extends Provider {
 
diff --git a/lib/private/preview/svg.php b/lib/private/preview/svg.php
index b49e51720fa..07a37e8f8c1 100644
--- a/lib/private/preview/svg.php
+++ b/lib/private/preview/svg.php
@@ -7,7 +7,7 @@
  */
 namespace OC\Preview;
 
-if (extension_loaded('imagick')) {
+if (extension_loaded('imagick') && count(\Imagick::queryFormats("SVG")) === 1) {
 
 	class SVG extends Provider {
 
diff --git a/lib/private/preview/unknown.php b/lib/private/preview/unknown.php
index 4747f9e25ed..8145c826149 100644
--- a/lib/private/preview/unknown.php
+++ b/lib/private/preview/unknown.php
@@ -22,7 +22,7 @@ class Unknown extends Provider {
 
 		$svgPath = substr_replace($path, 'svg', -3);
 
-		if (extension_loaded('imagick') && file_exists($svgPath)) {
+		if (extension_loaded('imagick') && file_exists($svgPath) && count(\Imagick::queryFormats("SVG")) === 1) {
 
 			// http://www.php.net/manual/de/imagick.setresolution.php#85284
 			$svg = new \Imagick();
diff --git a/lib/private/request.php b/lib/private/request.php
index b2afda35922..2c5b907846e 100755
--- a/lib/private/request.php
+++ b/lib/private/request.php
@@ -7,6 +7,12 @@
  */
 
 class OC_Request {
+
+	const USER_AGENT_IE = '/MSIE/';
+	// Android Chrome user agent: https://developers.google.com/chrome/mobile/docs/user-agent
+	const USER_AGENT_ANDROID_MOBILE_CHROME = '#Android.*Chrome/[.0-9]*#';
+	const USER_AGENT_FREEBOX = '#^Mozilla/5\.0$#';
+
 	/**
 	 * @brief Check overwrite condition
 	 * @param string $type
@@ -210,4 +216,22 @@ class OC_Request {
 			return false;
 		}
 	}
+
+	/**
+	 * Checks whether the user agent matches a given regex
+	 * @param string|array $agent agent name or array of agent names
+	 * @return boolean true if at least one of the given agent matches,
+	 * false otherwise
+	 */
+	static public function isUserAgent($agent) {
+		if (!is_array($agent)) {
+			$agent = array($agent);
+		}
+		foreach ($agent as $regex) {
+			if (preg_match($regex, $_SERVER['HTTP_USER_AGENT'])) {
+				return true;
+			}
+		}
+		return false;
+	}
 }
diff --git a/lib/private/response.php b/lib/private/response.php
index 674176d078b..52dbb9d90f8 100644
--- a/lib/private/response.php
+++ b/lib/private/response.php
@@ -148,6 +148,24 @@ class OC_Response {
 	}
 
 	/**
+	 * Sets the content disposition header (with possible workarounds)
+	 * @param string $filename file name
+	 * @param string $type disposition type, either 'attachment' or 'inline'
+	 */
+	static public function setContentDispositionHeader( $filename, $type = 'attachment' ) {
+		if (OC_Request::isUserAgent(array(
+				OC_Request::USER_AGENT_IE,
+				OC_Request::USER_AGENT_ANDROID_MOBILE_CHROME,
+				OC_Request::USER_AGENT_FREEBOX
+			))) {
+			header( 'Content-Disposition: ' . rawurlencode($type) . '; filename="' . rawurlencode( $filename ) . '"' );
+		} else {
+			header( 'Content-Disposition: ' . rawurlencode($type) . '; filename*=UTF-8\'\'' . rawurlencode( $filename )
+												 . '; filename="' . rawurlencode( $filename ) . '"' );
+		}
+	}
+
+	/**
 	* @brief Send file as response, checking and setting caching headers
 	* @param $filepath of file to send
 	*/
diff --git a/lib/private/server.php b/lib/private/server.php
index bee70dec2df..c9e593ec2ed 100644
--- a/lib/private/server.php
+++ b/lib/private/server.php
@@ -128,7 +128,9 @@ class Server extends SimpleContainer implements IServerContainer {
 			return new \OC\L10N\Factory();
 		});
 		$this->registerService('URLGenerator', function($c) {
-			return new \OC\URLGenerator();
+			/** @var $c SimpleContainer */
+			$config = $c->query('AllConfig');
+			return new \OC\URLGenerator($config);
 		});
 		$this->registerService('AppHelper', function($c) {
 			return new \OC\AppHelper();
@@ -136,6 +138,10 @@ class Server extends SimpleContainer implements IServerContainer {
 		$this->registerService('UserCache', function($c) {
 			return new UserCache();
 		});
+		$this->registerService('MemCacheFactory', function ($c) {
+			$instanceId = \OC_Util::getInstanceId();
+			return new \OC\Memcache\Factory($instanceId);
+		});
 		$this->registerService('ActivityManager', function($c) {
 			return new ActivityManager();
 		});
@@ -257,7 +263,7 @@ class Server extends SimpleContainer implements IServerContainer {
 	}
 
 	/**
-	 * @return \OC\Config
+	 * @return \OCP\IConfig
 	 */
 	function getConfig() {
 		return $this->query('AllConfig');
@@ -296,6 +302,15 @@ class Server extends SimpleContainer implements IServerContainer {
 	}
 
 	/**
+	 * Returns an \OCP\CacheFactory instance
+	 *
+	 * @return \OCP\CacheFactory
+	 */
+	function getMemCacheFactory() {
+		return $this->query('MemCacheFactory');
+	}
+
+	/**
 	 * Returns the current session
 	 *
 	 * @return \OCP\ISession
diff --git a/lib/private/setup.php b/lib/private/setup.php
index b5c530a091f..5232398d1d7 100644
--- a/lib/private/setup.php
+++ b/lib/private/setup.php
@@ -159,6 +159,9 @@ class OC_Setup {
 		$content.= "</IfModule>\n";
 		$content.= "AddDefaultCharset utf-8\n";
 		$content.= "Options -Indexes\n";
+		$content.= "<IfModule pagespeed_module>\n";
+		$content.= "ModPagespeed Off\n";
+		$content.= "</IfModule>\n";
 		@file_put_contents(OC::$SERVERROOT.'/.htaccess', $content); //supress errors in case we don't have permissions for it
 
 		self::protectDataDirectory();
diff --git a/lib/private/setup/mysql.php b/lib/private/setup/mysql.php
index d97b6d2602f..b2c28173b1c 100644
--- a/lib/private/setup/mysql.php
+++ b/lib/private/setup/mysql.php
@@ -3,13 +3,13 @@
 namespace OC\Setup;
 
 class MySQL extends AbstractDatabase {
-	public $dbprettyname = 'MySQL';
+	public $dbprettyname = 'MySQL/MariaDB';
 
 	public function setupDatabase($username) {
 		//check if the database user has admin right
 		$connection = @mysql_connect($this->dbhost, $this->dbuser, $this->dbpassword);
 		if(!$connection) {
-			throw new \DatabaseSetupException($this->trans->t('MySQL username and/or password not valid'),
+			throw new \DatabaseSetupException($this->trans->t('MySQL/MariaDB username and/or password not valid'),
 				$this->trans->t('You need to enter either an existing account or the administrator.'));
 		}
 		$oldUser=\OC_Config::getValue('dbuser', false);
@@ -82,14 +82,14 @@ class MySQL extends AbstractDatabase {
 		$query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
 		$result = mysql_query($query, $connection);
 		if (!$result) {
-			throw new \DatabaseSetupException($this->trans->t("MySQL user '%s'@'localhost' exists already.", array($name)),
-				$this->trans->t("Drop this user from MySQL", array($name)));
+			throw new \DatabaseSetupException($this->trans->t("MySQL/MariaDB user '%s'@'localhost' exists already.", array($name)),
+				$this->trans->t("Drop this user from MySQL/MariaDB", array($name)));
 		}
 		$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
 		$result = mysql_query($query, $connection);
 		if (!$result) {
-			throw new \DatabaseSetupException($this->trans->t("MySQL user '%s'@'%%' already exists", array($name)),
-				$this->trans->t("Drop this user from MySQL."));
+			throw new \DatabaseSetupException($this->trans->t("MySQL/MariaDB user '%s'@'%%' already exists", array($name)),
+				$this->trans->t("Drop this user from MySQL/MariaDB."));
 		}
 	}
 }
diff --git a/lib/private/urlgenerator.php b/lib/private/urlgenerator.php
index 7795011fd06..4e3c1109000 100644
--- a/lib/private/urlgenerator.php
+++ b/lib/private/urlgenerator.php
@@ -15,6 +15,19 @@ use RuntimeException;
  * Class to generate URLs
  */
 class URLGenerator implements IURLGenerator {
+
+	/**
+	 * @var \OCP\IConfig
+	 */
+	private $config;
+
+	/**
+	 * @param \OCP\IConfig $config
+	 */
+	public function __construct($config) {
+		$this->config = $config;
+	}
+
 	/**
 	 * @brief Creates an url using a defined route
 	 * @param $route
@@ -41,12 +54,18 @@ class URLGenerator implements IURLGenerator {
 	 * Returns a url to the given app and file.
 	 */
 	public function linkTo( $app, $file, $args = array() ) {
+		$frontControllerActive=($this->config->getSystemValue('front_controller_active', 'false') == 'true');
+
 		if( $app != '' ) {
 			$app_path = \OC_App::getAppPath($app);
 			// Check if the app is in the app folder
 			if ($app_path && file_exists($app_path . '/' . $file)) {
 				if (substr($file, -3) == 'php' || substr($file, -3) == 'css') {
+
 					$urlLinkTo = \OC::$WEBROOT . '/index.php/apps/' . $app;
+					if ($frontControllerActive) {
+						$urlLinkTo = \OC::$WEBROOT . '/apps/' . $app;
+					}
 					$urlLinkTo .= ($file != 'index.php') ? '/' . $file : '';
 				} else {
 					$urlLinkTo = \OC_App::getAppWebPath($app) . '/' . $file;
@@ -58,7 +77,11 @@ class URLGenerator implements IURLGenerator {
 			if (file_exists(\OC::$SERVERROOT . '/core/' . $file)) {
 				$urlLinkTo = \OC::$WEBROOT . '/core/' . $file;
 			} else {
-				$urlLinkTo = \OC::$WEBROOT . '/' . $file;
+				if ($frontControllerActive && $file === 'index.php') {
+					$urlLinkTo = \OC::$WEBROOT;
+				} else {
+					$urlLinkTo = \OC::$WEBROOT . '/' . $file;
+				}
 			}
 		}
 
diff --git a/lib/private/user.php b/lib/private/user.php
index e0d6b9f3f51..2519200d0f0 100644
--- a/lib/private/user.php
+++ b/lib/private/user.php
@@ -205,6 +205,9 @@ class OC_User {
 				// Delete user files in /data/
 				OC_Helper::rmdirr(\OC_User::getHome($uid));
 
+				// Delete the users entry in the storage table
+				\OC\Files\Cache\Storage::remove('home::' . $uid);
+
 				// Remove it from the Cache
 				self::getManager()->delete($uid);
 			}
@@ -246,6 +249,8 @@ class OC_User {
 			session_regenerate_id(true);
 			self::setUserId($uid);
 			self::setDisplayName($uid);
+			self::getUserSession()->setLoginName($uid);
+
 			OC_Hook::emit( "OC_User", "post_login", array( "uid" => $uid, 'password'=>'' ));
 			return true;
 		}
diff --git a/lib/private/user/backend.php b/lib/private/user/backend.php
index 02c93d13bdf..f4e5618e04a 100644
--- a/lib/private/user/backend.php
+++ b/lib/private/user/backend.php
@@ -31,13 +31,15 @@ define('OC_USER_BACKEND_NOT_IMPLEMENTED',   -501);
 /**
  * actions that user backends can define
  */
-define('OC_USER_BACKEND_CREATE_USER',       0x0000001);
-define('OC_USER_BACKEND_SET_PASSWORD',      0x0000010);
-define('OC_USER_BACKEND_CHECK_PASSWORD',    0x0000100);
-define('OC_USER_BACKEND_GET_HOME',			0x0001000);
-define('OC_USER_BACKEND_GET_DISPLAYNAME',	0x0010000);
-define('OC_USER_BACKEND_SET_DISPLAYNAME',	0x0100000);
-define('OC_USER_BACKEND_PROVIDE_AVATAR',	0x1000000);
+define('OC_USER_BACKEND_CREATE_USER',       0x00000001);
+define('OC_USER_BACKEND_SET_PASSWORD',      0x00000010);
+define('OC_USER_BACKEND_CHECK_PASSWORD',    0x00000100);
+define('OC_USER_BACKEND_GET_HOME',			0x00001000);
+define('OC_USER_BACKEND_GET_DISPLAYNAME',	0x00010000);
+define('OC_USER_BACKEND_SET_DISPLAYNAME',	0x00100000);
+define('OC_USER_BACKEND_PROVIDE_AVATAR',	0x01000000);
+define('OC_USER_BACKEND_COUNT_USERS',		0x10000000);
+//more actions cannot be defined without breaking 32bit platforms!
 
 /**
  * Abstract base class for user management. Provides methods for querying backend
@@ -55,6 +57,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 		OC_USER_BACKEND_GET_DISPLAYNAME => 'getDisplayName',
 		OC_USER_BACKEND_SET_DISPLAYNAME => 'setDisplayName',
 		OC_USER_BACKEND_PROVIDE_AVATAR => 'canChangeAvatar',
+		OC_USER_BACKEND_COUNT_USERS => 'countUsers',
 	);
 
 	/**
diff --git a/lib/private/user/database.php b/lib/private/user/database.php
index c99db3b27ca..1a63755b980 100644
--- a/lib/private/user/database.php
+++ b/lib/private/user/database.php
@@ -253,4 +253,19 @@ class OC_User_Database extends OC_User_Backend {
 		return true;
 	}
 
+	/**
+	 * counts the users in the database
+	 *
+	 * @return int | bool
+	 */
+	public function countUsers() {
+		$query = OC_DB::prepare('SELECT COUNT(*) FROM `*PREFIX*users`');
+		$result = $query->execute();
+		if (OC_DB::isError($result)) {
+			OC_Log::write('core', OC_DB::getErrorMessage($result), OC_Log::ERROR);
+			return false;
+		}
+		return $result->fetchOne();
+	}
+
 }
diff --git a/lib/private/user/dummy.php b/lib/private/user/dummy.php
index 52be7edfa75..fc15a630cf3 100644
--- a/lib/private/user/dummy.php
+++ b/lib/private/user/dummy.php
@@ -123,4 +123,13 @@ class OC_User_Dummy extends OC_User_Backend {
 	public function hasUserListings() {
 		return true;
 	}
+
+	/**
+	 * counts the users in the database
+	 *
+	 * @return int | bool
+	 */
+	public function countUsers() {
+		return 0;
+	}
 }
diff --git a/lib/private/user/manager.php b/lib/private/user/manager.php
index cf83a75ba25..90970ef9963 100644
--- a/lib/private/user/manager.php
+++ b/lib/private/user/manager.php
@@ -270,4 +270,26 @@ class Manager extends PublicEmitter {
 		}
 		return false;
 	}
+
+	/**
+	 * returns how many users per backend exist (if supported by backend)
+	 *
+	 * @return array with backend class as key and count number as value
+	 */
+	public function countUsers() {
+		$userCountStatistics = array();
+		foreach ($this->backends as $backend) {
+			if ($backend->implementsActions(\OC_USER_BACKEND_COUNT_USERS)) {
+				$backendusers = $backend->countUsers();
+				if($backendusers !== false) {
+					if(isset($userCountStatistics[get_class($backend)])) {
+						$userCountStatistics[get_class($backend)] += $backendusers;
+					} else {
+						$userCountStatistics[get_class($backend)] = $backendusers;
+					}
+				}
+			}
+		}
+		return $userCountStatistics;
+	}
 }
diff --git a/lib/private/user/session.php b/lib/private/user/session.php
index c2885d00413..1e299416fb3 100644
--- a/lib/private/user/session.php
+++ b/lib/private/user/session.php
@@ -115,13 +115,13 @@ class Session implements Emitter, \OCP\IUserSession {
 	/**
 	 * set the login name
 	 *
-	 * @param string login name for the logged in user
+	 * @param string $loginName for the logged in user
 	 */
-	public function setLoginname($loginname) {
-		if (is_null($loginname)) {
+	public function setLoginName($loginName) {
+		if (is_null($loginName)) {
 			$this->session->remove('loginname');
 		} else {
-			$this->session->set('loginname', $loginname);
+			$this->session->set('loginname', $loginName);
 		}
 	}
 
@@ -130,7 +130,7 @@ class Session implements Emitter, \OCP\IUserSession {
 	 *
 	 * @return string
 	 */
-	public function getLoginname() {
+	public function getLoginName() {
 		if ($this->activeUser) {
 			return $this->session->get('loginname');
 		} else {
@@ -158,7 +158,7 @@ class Session implements Emitter, \OCP\IUserSession {
 			if (!is_null($user)) {
 				if ($user->isEnabled()) {
 					$this->setUser($user);
-					$this->setLoginname($uid);
+					$this->setLoginName($uid);
 					$this->manager->emit('\OC\User', 'postLogin', array($user, $password));
 					return true;
 				} else {
@@ -176,7 +176,7 @@ class Session implements Emitter, \OCP\IUserSession {
 	public function logout() {
 		$this->manager->emit('\OC\User', 'logout');
 		$this->setUser(null);
-		$this->setLoginname(null);
+		$this->setLoginName(null);
 		$this->unsetMagicInCookie();
 	}
 
diff --git a/lib/private/util.php b/lib/private/util.php
index c0e618cc863..0585749d615 100755
--- a/lib/private/util.php
+++ b/lib/private/util.php
@@ -51,6 +51,10 @@ class OC_Util {
 			self::$rootMounted = true;
 		}
 
+		if ($user != '' && !OCP\User::userExists($user)) {
+			return false;
+		}
+
 		//if we aren't logged in, there is no use to set up the filesystem
 		if( $user != "" ) {
 			\OC\Files\Filesystem::addStorageWrapper(function($mountPoint, $storage){
@@ -312,7 +316,7 @@ class OC_Util {
 			.'" target="_blank">giving the webserver write access to the root directory</a>.';
 
 		// Check if config folder is writable.
-		if(!is_writable(OC::$SERVERROOT."/config/") or !is_readable(OC::$SERVERROOT."/config/")) {
+		if(!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
 			$errors[] = array(
 				'error' => "Can't write into config directory",
 				'hint' => 'This can usually be fixed by '
@@ -580,7 +584,7 @@ class OC_Util {
 		// Check if we are a user
 		if( !OC_User::isLoggedIn()) {
 			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php',
-				array('redirectUrl' => OC_Request::requestUri())
+				array('redirect_url' => OC_Request::requestUri())
 			));
 			exit();
 		}
@@ -784,8 +788,12 @@ class OC_Util {
 		}
 
 		$fp = @fopen($testFile, 'w');
-		@fwrite($fp, $testContent);
-		@fclose($fp);
+		if (!$fp) {
+			throw new OC\HintException('Can\'t create test file to check for working .htaccess file.',
+				'Make sure it is possible for the webserver to write to '.$testFile);
+		}
+		fwrite($fp, $testContent);
+		fclose($fp);
 
 		// accessing the file via http
 		$url = OC_Helper::makeURLAbsolute(OC::$WEBROOT.'/data'.$fileName);
@@ -892,6 +900,11 @@ class OC_Util {
 			return false;
 		}
 
+		// in case the connection is via proxy return true to avoid connecting to owncloud.org
+		if(OC_Config::getValue('proxy', '') != '') {
+			return true;
+		}
+
 		// try to connect to owncloud.org to see if http connections to the internet are possible.
 		$connected = @fsockopen("www.owncloud.org", 80);
 		if ($connected) {