13 files changed, 412 insertions, 328 deletions

diff --git a/lib/base.php b/lib/base.php
index 342bdc6768e..85afaa62258 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -303,13 +303,15 @@ if(!function_exists('get_temp_dir')) {
 			unlink($temp);
 			return dirname($temp);
 		}
+		if( $temp=sys_get_temp_dir())    return $temp;
+		
 		return null;
 	}
 }
 
 OC::init();
 
-require_once('fakedirstream.php');
+require_once('streamwrappers.php');
 
 
 
diff --git a/lib/connector/sabre/auth.php b/lib/connector/sabre/auth.php
index 1e87c7cee08..8964ef7d0de 100644
--- a/lib/connector/sabre/auth.php
+++ b/lib/connector/sabre/auth.php
@@ -23,6 +23,7 @@ class OC_Connector_Sabre_Auth extends Sabre_DAV_Auth_Backend_AbstractBasic {
 	 * @return bool
 	 */
 	protected function validateUserPass($username, $password){
+		OC_Util::setUpFS();//login hooks may need early access to the filesystem
 		if(OC_User::login($username,$password)){
 			OC_Util::setUpFS();
 			return true;
diff --git a/lib/crypt.php b/lib/crypt.php
deleted file mode 100644
index 60020679480..00000000000
--- a/lib/crypt.php
+++ /dev/null
@@ -1,165 +0,0 @@
-<?php
-/**
- * ownCloud
- *
- * @author Frank Karlitschek
- * @copyright 2010 Frank Karlitschek karlitschek@kde.org
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
- *
- * You should have received a copy of the GNU Affero General Public
- * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-
-
-// Todo:
-//  - Crypt/decrypt button in the userinterface
-//  - Setting if crypto should be on by default
-//  - Add a setting "Don´t encrypt files larger than xx because of performance reasons"
-//  - Transparent decrypt/encrpt in filesystem.php. Autodetect if a file is encrypted (.encrypted extensio)
-//  - Don't use a password directly as encryption key. but a key which is stored on the server and encrypted with the user password. -> password change faster
-//  - IMPORTANT! Check if the block lenght of the encrypted data stays the same
-
-
-require_once('Crypt_Blowfish/Blowfish.php');
-
-/**
- * This class is for crypting and decrypting
- */
-class OC_Crypt {
-
-        static $encription_extension='.encrypted';
-
-	public static function init($login,$password) {
-		$_SESSION['user_password'] = $password;  // save the password as passcode for the encryption
-		if(OC_User::isLoggedIn()){
-			// does key exist?
-			if(!file_exists(OC_Config::getValue( "datadirectory").'/'.$login.'/encryption.key')){
-				OC_Crypt::createkey($_SESSION['user_password']);
-			}
-		}
-	}
-
-
-
-	public static function createkey($passcode) {
-		if(OC_User::isLoggedIn()){
-			// generate a random key
-			$key=mt_rand(10000,99999).mt_rand(10000,99999).mt_rand(10000,99999).mt_rand(10000,99999);
-
-			// encrypt the key with the passcode of the user
-			$enckey=OC_Crypt::encrypt($key,$passcode);
-
-			// Write the file
-		        $username=OC_USER::getUser();
-			@file_put_contents(OC_Config::getValue( "datadirectory").'/'.$username.'/encryption.key', $enckey );
-		}
-	}
-
-	public static function changekeypasscode( $newpasscode) {
-		if(OC_User::isLoggedIn()){
-		        $username=OC_USER::getUser();
-
-			// read old key
-			$key=file_get_contents(OC_Config::getValue( "datadirectory").'/'.$username.'/encryption.key');
-
-			// decrypt key with old passcode
-			$key=OC_Crypt::decrypt($key, $_SESSION['user_password']);
-
-			// encrypt again with new passcode
-			$key=OC_Crypt::encrypt($key,$newpassword);
-
-			// store the new key
-			file_put_contents(OC_Config::getValue( "datadirectory").'/'.$username.'/encryption.key', $key );
-
-			 $_SESSION['user_password']=$newpasscode;
-		}
-	}
-
-	/**
-	 * @brief encrypts an content
-	 * @param $content the cleartext message you want to encrypt
-	 * @param $key the encryption key
-	 * @returns encrypted content
-	 *
-	 * This function encrypts an content
-	 */
-	public static function encrypt( $content, $key) {
-		$bf = new Crypt_Blowfish($key);
-		return($bf->encrypt($content));
-	}
-
-
-        /**
-         * @brief decryption of an content
-         * @param $content the cleartext message you want to decrypt
-         * @param $key the encryption key
-         * @returns cleartext content
-         *
-         * This function decrypts an content
-         */
-        public static function decrypt( $content, $key) {
-		$bf = new Crypt_Blowfish($key);
-		return($bf->encrypt($contents));
-        }       
-
-
-        /**
-         * @brief encryption of a file
-         * @param $filename
-         * @param $key the encryption key
-         *
-         * This function encrypts a file
-         */
-	public static function encryptfile( $filename, $key) {
-		$handleread  = fopen($filename, "rb");
-		if($handleread<>FALSE) {
-			$handlewrite = fopen($filename.OC_Crypt::$encription_extension, "wb");
-			while (!feof($handleread)) {
-				$content = fread($handleread, 8192);
-				$enccontent=OC_CRYPT::encrypt( $content, $key);
-				fwrite($handlewrite, $enccontent);
-			}
-			fclose($handlewrite);
-			unlink($filename);
-		}
-		fclose($handleread);
-	}
-
-
-        /**
-         * @brief decryption of a file
-         * @param $filename
-         * @param $key the decryption key
-         *
-         * This function decrypts a file
-         */
-	public static function decryptfile( $filename, $key) {
-		$handleread  = fopen($filename.OC_Crypt::$encription_extension, "rb");
-		if($handleread<>FALSE) {
-			$handlewrite = fopen($filename, "wb");
-			while (!feof($handleread)) {
-				$content = fread($handleread, 8192);
-				$enccontent=OC_CRYPT::decrypt( $content, $key);
-				fwrite($handlewrite, $enccontent);
-			}
-			fclose($handlewrite);
-			unlink($filename.OC_Crypt::$encription_extension);
-		}
-		fclose($handleread);
-	}
-
-
-
-
-}
diff --git a/lib/fakedirstream.php b/lib/fakedirstream.php
deleted file mode 100644
index fa3e64da62c..00000000000
--- a/lib/fakedirstream.php
+++ /dev/null
@@ -1,45 +0,0 @@
-<?php
-global $FAKEDIRS;
-$FAKEDIRS=array();
-
-class fakeDirStream{
-	private $name;
-	private $data;
-	private $index;
-
-	public function dir_opendir($path,$options){
-		global $FAKEDIRS;
-		$url=parse_url($path);
-		$this->name=substr($path,strlen('fakedir://'));
-		$this->index=0;
-		if(isset($FAKEDIRS[$this->name])){
-			$this->data=$FAKEDIRS[$this->name];
-		}else{
-			$this->data=array();
-		}
-		return true;
-	}
-
-	public function dir_readdir(){
-		if($this->index>=count($this->data)){
-			return false;
-		}
-		$filename=$this->data[$this->index];
-		$this->index++;
-		return $filename;
-	}
-
-	public function dir_closedir() {
-		$this->data=false;
-		$this->name='';
-		return true;
-	}
-
-	public function dir_rewinddir() {
-		$this->index=0;
-		return true;
-	}
-}
- 
-stream_wrapper_register("fakedir", "fakeDirStream");
-
diff --git a/lib/filecache.php b/lib/filecache.php
index faadddfb37e..6ccb0d90ef1 100644
--- a/lib/filecache.php
+++ b/lib/filecache.php
@@ -28,6 +28,8 @@
  * It will try to keep the data up to date but changes from outside ownCloud can invalidate the cache
  */
 class OC_FileCache{
+	private static $savedData=array();
+	
 	/**
 	 * get the filesystem info from the cache
 	 * @param string path
@@ -93,6 +95,14 @@ class OC_FileCache{
 			self::update($id,$data);
 			return;
 		}
+		if(isset(self::$savedData[$path])){
+			$data=array_merge($data,self::$savedData[$path]);
+			unset(self::$savedData[$path]);
+		}
+		if(!isset($data['size']) or !isset($data['mtime'])){//save incomplete data for the next time we write it
+			self::$savedData[$path]=$data;
+			return;
+		}
 		if(!isset($data['encrypted'])){
 			$data['encrypted']=false;
 		}
@@ -101,9 +111,8 @@ class OC_FileCache{
 		}
 		$mimePart=dirname($data['mimetype']);
 		$user=OC_User::getUser();
-		$query=OC_DB::prepare('INSERT INTO *PREFIX*fscache(parent, name, path, size, mtime, ctime, mimetype, mimepart,user,writable) VALUES(?,?,?,?,?,?,?,?,?,?)');
-		$query->execute(array($parent,basename($path),$path,$data['size'],$data['mtime'],$data['ctime'],$data['mimetype'],$mimePart,$user,$data['writable']));
-		
+		$query=OC_DB::prepare('INSERT INTO *PREFIX*fscache(parent, name, path, size, mtime, ctime, mimetype, mimepart,user,writable,encrypted,versioned) VALUES(?,?,?,?,?,?,?,?,?,?,?,?)');
+		$query->execute(array($parent,basename($path),$path,$data['size'],$data['mtime'],$data['ctime'],$data['mimetype'],$mimePart,$user,$data['writable'],$data['encrypted'],$data['versioned']));
 	}
 
 	/**
@@ -323,7 +332,29 @@ class OC_FileCache{
 		}
 		self::increaseSize(dirname($fullPath),$size-$cachedSize);
 	}
-
+	
+	public static function getCached($path,$root=''){
+		if(!$root){
+			$root=OC_Filesystem::getRoot();
+		}else{
+			if($root=='/'){
+				$root='';
+			}
+		}
+		$path=$root.$path;
+		$query=OC_DB::prepare('SELECT ctime,mtime,mimetype,size,encrypted,versioned,writable FROM *PREFIX*fscache WHERE path=?');
+		$result=$query->execute(array($path))->fetchRow();
+		if(is_array($result)){
+			if(isset(self::$savedData[$path])){
+				$result=array_merge($result,self::$savedData[$path]);
+			}
+			return $result;
+		}else{
+			OC_Log::write('get(): file not found in cache ('.$path.')','core',OC_Log::DEBUG);
+			return false;
+		}
+	}
+	
 	private static function getCachedSize($path,$root){
 		if(!$root){
 			$root=OC_Filesystem::getRoot();
@@ -332,6 +363,7 @@ class OC_FileCache{
 				$root='';
 			}
 		}
+		$path=$root.$path;
 		$query=OC_DB::prepare('SELECT size FROM *PREFIX*fscache WHERE path=?');
 		$result=$query->execute(array($path));
 		if($row=$result->fetchRow()){
@@ -515,6 +547,9 @@ class OC_FileCache{
 			}
 			$view=new OC_FilesystemView($root);
 		}
+		if(!$view->file_exists($path)){
+			return false;
+		}
 		$mtime=$view->filemtime($path);
 		$isDir=$view->is_dir($path);
 		$path=$root.$path;
diff --git a/lib/fileproxy.php b/lib/fileproxy.php
index 235fc8bf284..46fc2f49c50 100644
--- a/lib/fileproxy.php
+++ b/lib/fileproxy.php
@@ -34,11 +34,12 @@
  * A post-proxy recieves 2 arguments, the filepath and the result of the operation.
  * The return calue of the post-proxy will be used as the new result of the operation
  * The operations that have a post-proxy are
- *      file_get_contents, is_file, is_dir, file_exists, stat, is_readable, is_writable, filemtime, filectime, file_get_contents, getMimeType, hash, free_space and search
+ * file_get_contents, is_file, is_dir, file_exists, stat, is_readable, is_writable, fileatime, filemtime, filectime, file_get_contents, getMimeType, hash, fopen, free_space and search
  */
 
 class OC_FileProxy{
 	private static $proxies=array();
+	public static $enabled=true;
 	
 	/**
 	 * check if this proxy implments a specific proxy operation
@@ -83,16 +84,19 @@ class OC_FileProxy{
 		return $proxies;
 	}
 
-	public static function runPreProxies($operation,$filepath,$filepath2=null){
+	public static function runPreProxies($operation,&$filepath,&$filepath2=null){
+		if(!self::$enabled){
+			return true;
+		}
 		$proxies=self::getProxies($operation,false);
 		$operation='pre'.$operation;
 		foreach($proxies as $proxy){
-			if($filepath2){
-				if(!$proxy->$operation($filepath,$filepath2)){
+			if(!is_null($filepath2)){
+				if($proxy->$operation($filepath,$filepath2)===false){
 					return false;
 				}
 			}else{
-				if(!$proxy->$operation($filepath)){
+				if($proxy->$operation($filepath)===false){
 					return false;
 				}
 			}
@@ -101,6 +105,9 @@ class OC_FileProxy{
 	}
 
 	public static function runPostProxies($operation,$path,$result){
+		if(!self::$enabled){
+			return $result;
+		}
 		$proxies=self::getProxies($operation,true);
 		$operation='post'.$operation;
 		foreach($proxies as $proxy){
diff --git a/lib/filestorage.php b/lib/filestorage.php
index 4523144f6f4..d420427225b 100644
--- a/lib/filestorage.php
+++ b/lib/filestorage.php
@@ -45,8 +45,6 @@ class OC_Filestorage{
 	public function rename($path1,$path2){}
 	public function copy($path1,$path2){}
 	public function fopen($path,$mode){}
-	public function toTmpFile($path){}//copy the file to a temporary file, used for cross-storage file actions
-	public function fromTmpFile($tmpPath,$path){}//copy a file from a temporary file, used for cross-storage file actions
 	public function getMimeType($path){}
 	public function hash($type,$path,$raw){}
 	public function free_space($path){}
diff --git a/lib/filestorage/local.php b/lib/filestorage/local.php
index dcb516a3afb..6f4f68c503d 100644
--- a/lib/filestorage/local.php
+++ b/lib/filestorage/local.php
@@ -74,7 +74,7 @@ class OC_Filestorage_Local extends OC_Filestorage{
 	public function file_get_contents($path){
 		return file_get_contents($this->datadir.$path);
 	}
-	public function file_put_contents($path,$data){
+	public function file_put_contents($path,$data=null){
 		if($return=file_put_contents($this->datadir.$path,$data)){
 		}
 	}
@@ -122,72 +122,9 @@ class OC_Filestorage_Local extends OC_Filestorage{
 		return $return;
 	}
 
-	public function getMimeType($fspath){
-		if($this->is_readable($fspath)){
-			$mimeType='application/octet-stream';
-			if ($mimeType=='application/octet-stream') {
-				self::$mimetypes = include('mimetypes.fixlist.php');
-				$extention=strtolower(strrchr(basename($fspath), "."));
-				$extention=substr($extention,1);//remove leading .
-				$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
-				
-			}
-			if (@is_dir($this->datadir.$fspath)) {
-				// directories are easy
-				return "httpd/unix-directory";
-			}
-			if($mimeType=='application/octet-stream' and function_exists('finfo_open') and function_exists('finfo_file') and $finfo=finfo_open(FILEINFO_MIME)){
-				$mimeType =strtolower(finfo_file($finfo,$this->datadir.$fspath));
-				$mimeType=substr($mimeType,0,strpos($mimeType,';'));
-				finfo_close($finfo);
-			}
-			if ($mimeType=='application/octet-stream' && function_exists("mime_content_type")) {
-				// use mime magic extension if available
-				$mimeType = mime_content_type($this->datadir.$fspath);
-			}
-			if ($mimeType=='application/octet-stream' && OC_Helper::canExecute("file")) {
-				// it looks like we have a 'file' command,
-				// lets see it it does have mime support
-				$fspath=str_replace("'","\'",$fspath);
-				$fp = popen("file -i -b '{$this->datadir}$fspath' 2>/dev/null", "r");
-				$reply = fgets($fp);
-				pclose($fp);
-
-				//trim the character set from the end of the response
-				$mimeType=substr($reply,0,strrpos($reply,' '));
-			}
-			if ($mimeType=='application/octet-stream') {
-				// Fallback solution: (try to guess the type by the file extension
-				if(!self::$mimetypes || self::$mimetypes != include('mimetypes.list.php')){
-					self::$mimetypes=include('mimetypes.list.php');
-				}
-				$extention=strtolower(strrchr(basename($fspath), "."));
-				$extention=substr($extention,1);//remove leading .
-				$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
-			}
-			return $mimeType;
-		}else{
-			return false;
-		}
-	}
-
-	public function toTmpFile($path){
-		$tmpFolder=get_temp_dir();
-		$filename=tempnam($tmpFolder,'OC_TEMP_FILE_'.substr($path,strrpos($path,'.')));
-		$fileStats = stat($this->datadir.$path);
-		if(copy($this->datadir.$path,$filename)){
-			touch($filename, $fileStats['mtime'], $fileStats['atime']);
-			return $filename;
-		}else{
-			return false;
-		}
-	}
-
-	public function fromTmpFile($tmpFile,$path){
-		$fileStats = stat($tmpFile);
-		if(rename($tmpFile,$this->datadir.$path)){
-			touch($this->datadir.$path, $fileStats['mtime'], $fileStats['atime']);
-			return true;
+	public function getMimeType($path){
+		if($this->is_readable($path)){
+			return OC_Helper::getMimeType($this->datadir.$path);
 		}else{
 			return false;
 		}
diff --git a/lib/filesystemview.php b/lib/filesystemview.php
index 91c6cd17720..c4d5ff35142 100644
--- a/lib/filesystemview.php
+++ b/lib/filesystemview.php
@@ -163,7 +163,22 @@ class OC_FilesystemView {
 		return $this->basicOperation('file_get_contents',$path,array('read'));
 	}
 	public function file_put_contents($path,$data){
-		return $this->basicOperation('file_put_contents',$path,array('create','write'),$data);
+		if(is_resource($data)){//not having to deal with streams in file_put_contents makes life easier
+			$target=$this->fopen($path,'w');
+			if($target){
+				while(!feof($data)){
+					fwrite($target,fread($data,8192));
+				}
+				fclose($target);
+				fclose($data);
+				OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, array( OC_Filesystem::signal_param_path => $path));
+				return true;
+			}else{
+				return false;
+			}
+		}else{
+			return $this->basicOperation('file_put_contents',$path,array('create','write'),$data);
+		}
 	}
 	public function unlink($path){
 		return $this->basicOperation('unlink',$path,array('delete'));
@@ -179,9 +194,13 @@ class OC_FilesystemView {
 					if($storage=$this->getStorage($path1)){
 						$result=$storage->rename($this->getInternalPath($path1),$this->getInternalPath($path2));
 					}
-				}elseif($storage1=$this->getStorage($path1) and $storage2=$this->getStorage($path2)){
-					$tmpFile=$storage1->toTmpFile($this->getInternalPath($path1));
-					$result=$storage2->fromTmpFile($tmpFile,$this->getInternalPath($path2));
+				}else{
+					$source=$this->fopen($path1,'r');
+					$target=$this->fopen($path2,'w');
+					while (!feof($source)){
+						fwrite($target,fread($source,8192));
+					}
+					$storage1=$this->getStorage($path1);
 					$storage1->unlink($this->getInternalPath($path1));
 				}
 				OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_rename, array( OC_Filesystem::signal_param_oldpath => $path1, OC_Filesystem::signal_param_newpath=>$path2));
@@ -207,9 +226,14 @@ class OC_FilesystemView {
 					if($storage=$this->getStorage($path1)){
 						$result=$storage->copy($this->getInternalPath($path1),$this->getInternalPath($path2));
 					}
-				}elseif($storage1=$this->getStorage($path1) and $storage2=$this->getStorage($path2)){
-					$tmpFile=$storage1->toTmpFile($this->getInternalPath($path1));
-					$result=$storage2->fromTmpFile($tmpFile,$this->getInternalPath($path2));
+				}else{
+					$source=$this->fopen($path1,'r');
+					$target=$this->fopen($path2,'w');
+					if($target and $source){
+						while (!feof($source)){
+							fwrite($target,fread($source,8192));
+						}
+					}
 				}
         OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_copy, array( OC_Filesystem::signal_param_oldpath => $path1 , OC_Filesystem::signal_param_newpath=>$path2));
 				if(!$exists){
@@ -245,29 +269,28 @@ class OC_FilesystemView {
 		return $this->basicOperation('fopen',$path,$hooks,$mode);
 	}
 	public function toTmpFile($path){
-		if(OC_FileProxy::runPreProxies('toTmpFile',$path) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){
-			OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_read, array( OC_Filesystem::signal_param_path => $path));
-			return $storage->toTmpFile($this->getInternalPath($path));
+		if(OC_Filesystem::isValidPath($path)){
+			$source=$this->fopen($path,'r');
+			$tmpFile=tempnam(get_temp_dir(),'OC_TMP_').substr($path,strrpos($path,'.'));
+			if($source){
+				return file_put_contents($tmpFile,$source);
+			}
 		}
 	}
 	public function fromTmpFile($tmpFile,$path){
-		if(OC_FileProxy::runPreProxies('copy',$tmpFile,$path) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){
-			$run=true;
-			$exists=$this->file_exists($path);
-			if(!$exists){
-				OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_create, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run));
-			}
-			if($run){
-				OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_write, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run));
+		if(OC_Filesystem::isValidPath($path)){
+			if(!$tmpFile){
+				debug_print_backtrace();
 			}
-			if($run){
-				$result=$storage->fromTmpFile($tmpFile,$this->getInternalPath($path));
-				if(!$exists){
-					OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_create, array( OC_Filesystem::signal_param_path => $path));
-				}
-				OC_Hook::emit( OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, array( OC_Filesystem::signal_param_path => $path));
-				return $result;
+			$source=fopen($tmpFile,'r');
+			if($source){
+				$this->file_put_contents($path,$source);
+				unlink($tmpFile);
+				return true;
+			}else{
 			}
+		}else{
+			return false;
 		}
 	}
 
@@ -294,23 +317,29 @@ class OC_FilesystemView {
 		if(OC_FileProxy::runPreProxies($operation,$path, $extraParam) and OC_Filesystem::isValidPath($path) and $storage=$this->getStorage($path)){
 			$interalPath=$this->getInternalPath($path);
 			$run=true;
-			foreach($hooks as $hook){
-				if($hook!='read'){
-					OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run));
-				}else{
-					OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path));
+			if(OC_Filesystem::$loaded and $this->fakeRoot==OC_Filesystem::getRoot()){
+				foreach($hooks as $hook){
+					if($hook!='read'){
+						OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path, OC_Filesystem::signal_param_run => &$run));
+					}else{
+						OC_Hook::emit( OC_Filesystem::CLASSNAME, $hook, array( OC_Filesystem::signal_param_path => $path));
+					}
 				}
 			}
 			if($run){
-				if($extraParam){
+				if(!is_null($extraParam)){
 					$result=$storage->$operation($interalPath,$extraParam);
 				}else{
 					$result=$storage->$operation($interalPath);
 				}
 				$result=OC_FileProxy::runPostProxies($operation,$path,$result);
-				foreach($hooks as $hook){
-					if($hook!='read'){
-						OC_Hook::emit( OC_Filesystem::CLASSNAME, 'post_'.$hook, array( OC_Filesystem::signal_param_path => $path));
+				if(OC_Filesystem::$loaded and $this->fakeRoot==OC_Filesystem::getRoot()){
+					if($operation!='fopen'){//no post hooks for fopen, the file stream is still open
+						foreach($hooks as $hook){
+							if($hook!='read'){
+								OC_Hook::emit( OC_Filesystem::CLASSNAME, 'post_'.$hook, array( OC_Filesystem::signal_param_path => $path));
+							}
+						}
 					}
 				}
 				return $result;
diff --git a/lib/helper.php b/lib/helper.php
index 2f71bdad2dc..6dea4a6a8cd 100644
--- a/lib/helper.php
+++ b/lib/helper.php
@@ -25,6 +25,8 @@
  * Collection of useful functions
  */
 class OC_Helper {
+	private static $mimetypes=array();
+	
 	/**
 	 * @brief Creates an url
 	 * @param $app app
@@ -267,6 +269,62 @@ class OC_Helper {
 			unlink($dir);
 		}
 	}
+
+	/**
+	 * get the mimetype form a local file
+	 * @param string path
+	 * @return string
+	 * does NOT work for ownClouds filesystem, use OC_FileSystem::getMimeType instead
+	 */
+	static function getMimeType($path){
+		$isWrapped=(strpos($path,'://')!==false) and (substr($path,0,7)=='file://');
+		$mimeType='application/octet-stream';
+		if ($mimeType=='application/octet-stream') {
+			if(count(self::$mimetypes)>0){
+				self::$mimetypes = include('mimetypes.fixlist.php');
+			}
+			$extention=strtolower(strrchr(basename($path), "."));
+			$extention=substr($extention,1);//remove leading .
+			$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
+
+		}
+		if (@is_dir($path)) {
+			// directories are easy
+			return "httpd/unix-directory";
+		}
+		if($mimeType=='application/octet-stream' and function_exists('finfo_open') and function_exists('finfo_file') and $finfo=finfo_open(FILEINFO_MIME)){
+			$info = @strtolower(finfo_file($finfo,$path));
+			if($info){
+				$mimeType=substr($info,0,strpos($info,';'));
+			}
+			finfo_close($finfo);
+		}
+		if (!$isWrapped and $mimeType=='application/octet-stream' && function_exists("mime_content_type")) {
+			// use mime magic extension if available
+			$mimeType = mime_content_type($path);
+		}
+		if (!$isWrapped and $mimeType=='application/octet-stream' && OC_Helper::canExecute("file")) {
+			// it looks like we have a 'file' command,
+			// lets see it it does have mime support
+			$path=str_replace("'","\'",$path);
+			$fp = popen("file -i -b '$path' 2>/dev/null", "r");
+			$reply = fgets($fp);
+			pclose($fp);
+
+			//trim the character set from the end of the response
+			$mimeType=substr($reply,0,strrpos($reply,' '));
+		}
+		if ($mimeType=='application/octet-stream') {
+			// Fallback solution: (try to guess the type by the file extension
+			if(!self::$mimetypes || self::$mimetypes != include('mimetypes.list.php')){
+				self::$mimetypes=include('mimetypes.list.php');
+			}
+			$extention=strtolower(strrchr(basename($path), "."));
+			$extention=substr($extention,1);//remove leading .
+			$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
+		}
+		return $mimeType;
+	}
 	
 	/**
 	 * @brief Checks $_REQUEST contains a var for the $s key. If so, returns the html-escaped value of this var; otherwise returns the default value provided by $d.
diff --git a/lib/streamwrappers.php b/lib/streamwrappers.php
new file mode 100644
index 00000000000..1454a99e8d5
--- /dev/null
+++ b/lib/streamwrappers.php
@@ -0,0 +1,223 @@
+<?php
+global $FAKEDIRS;
+$FAKEDIRS=array();
+
+class OC_FakeDirStream{
+	public static $dirs=array();
+	private $name;
+	private $index;
+
+	public function dir_opendir($path,$options){
+		global $FAKEDIRS;
+		$url=parse_url($path);
+		$this->name=substr($path,strlen('fakedir://'));
+		$this->index=0;
+		if(!isset(self::$dirs[$this->name])){
+			self::$dirs[$this->name]=array();
+		}
+		return true;
+	}
+
+	public function dir_readdir(){
+		if($this->index>=count(self::$dirs[$this->name])){
+			return false;
+		}
+		$filename=self::$dirs[$this->name][$this->index];
+		$this->index++;
+		return $filename;
+	}
+
+	public function dir_closedir() {
+		$this->name='';
+		return true;
+	}
+
+	public function dir_rewinddir() {
+		$this->index=0;
+		return true;
+	}
+}
+
+class OC_StaticStreamWrapper {
+	public $context;
+	protected static $data = array();
+
+	protected $path    = '';
+	protected $pointer = 0;
+	protected $writable = false;
+
+	public function stream_close() {}
+
+	public function stream_eof() {
+		return $this->pointer >= strlen(self::$data[$this->path]);
+	}
+
+	public function stream_flush() {}
+
+	public function stream_open($path, $mode, $options, &$opened_path) {
+		switch ($mode[0]) {
+			case 'r':
+				if (!isset(self::$data[$path])) return false;
+				$this->path = $path;
+				$this->writable = isset($mode[1]) && $mode[1] == '+';
+				break;
+			case 'w':
+				self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			case 'a':
+				if (!isset(self::$data[$path])) self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				$this->pointer = strlen(self::$data[$path]);
+				break;
+			case 'x':
+				if (isset(self::$data[$path])) return false;
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			case 'c':
+				if (!isset(self::$data[$path])) self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			default:
+				return false;
+		}
+		$opened_path = $this->path;
+		return true;
+	}
+
+	public function stream_read($count) {
+		$bytes = min(strlen(self::$data[$this->path]) - $this->pointer, $count);
+		$data = substr(self::$data[$this->path], $this->pointer, $bytes);
+		$this->pointer += $bytes;
+		return $data;
+	}
+
+	public function stream_seek($offset, $whence = SEEK_SET) {
+		$len = strlen(self::$data[$this->path]);
+		switch ($whence) {
+			case SEEK_SET:
+				if ($offset <= $len) {
+					$this->pointer = $offset;
+					return true;
+				}
+				break;
+			case SEEK_CUR:
+				if ($this->pointer + $offset <= $len) {
+					$this->pointer += $offset;
+					return true;
+				}
+				break;
+			case SEEK_END:
+				if ($len + $offset <= $len) {
+					$this->pointer = $len + $offset;
+					return true;
+				}
+				break;
+		}
+		return false;
+	}
+
+	public function stream_stat() {
+		$size = strlen(self::$data[$this->path]);
+		$time = time();
+		return array(
+			0 => 0,
+			'dev' => 0,
+			1 => 0,
+			'ino' => 0,
+			2 => 0777,
+			'mode' => 0777,
+			3 => 1,
+			'nlink' => 1,
+			4 => 0,
+			'uid' => 0,
+			5 => 0,
+			'gid' => 0,
+			6 => '',
+			'rdev' => '',
+			7 => $size,
+			'size' => $size,
+			8 => $time,
+			'atime' => $time,
+			9 => $time,
+			'mtime' => $time,
+			10 => $time,
+			'ctime' => $time,
+			11 => -1,
+			'blksize' => -1,
+			12 => -1,
+			'blocks' => -1,
+		);
+	}
+
+	public function stream_tell() {
+		return $this->pointer;
+	}
+
+	public function stream_write($data) {
+		if (!$this->writable) return 0;
+		$size = strlen($data);
+		$len = strlen(self::$data[$this->path]);
+		if ($this->stream_eof()) {
+			self::$data[$this->path] .= $data;
+		} else {
+			self::$data[$this->path] = substr_replace(
+				self::$data[$this->path],
+				$data,
+				$this->pointer
+			);
+		}
+		$this->pointer += $size;
+		return $size;
+	}
+
+	public function unlink($path) {
+		if (isset(self::$data[$path])) {
+			unset(self::$data[$path]);
+		}
+		return true;
+	}
+
+	public function url_stat($path) {
+		if (isset(self::$data[$path])) {
+			$size = strlen(self::$data[$path]);
+			$time = time();
+			return array(
+				0 => 0,
+				'dev' => 0,
+				1 => 0,
+				'ino' => 0,
+				2 => 0777,
+				'mode' => 0777,
+				3 => 1,
+				'nlink' => 1,
+				4 => 0,
+				'uid' => 0,
+				5 => 0,
+				'gid' => 0,
+				6 => '',
+				'rdev' => '',
+				7 => $size,
+				'size' => $size,
+				8 => $time,
+				'atime' => $time,
+				9 => $time,
+				'mtime' => $time,
+				10 => $time,
+				'ctime' => $time,
+				11 => -1,
+				'blksize' => -1,
+				12 => -1,
+				'blocks' => -1,
+			);
+		}
+		return false;
+	}
+}
+
+stream_wrapper_register("fakedir", "OC_FakeDirStream");
+stream_wrapper_register('static', 'OC_StaticStreamWrapper');
diff --git a/lib/user.php b/lib/user.php
index 0746fcc6eb4..fda19a33154 100644
--- a/lib/user.php
+++ b/lib/user.php
@@ -195,8 +195,9 @@ class OC_User {
 		if( $run ){
 			$uid=self::checkPassword( $uid, $password );
 			if($uid){
-				OC_Crypt::init($uid,$password);
-				return self::setUserId($uid);
+				self::setUserId($uid);
+				OC_Hook::emit( "OC_User", "post_login", array( "uid" => $uid, 'password'=>$password ));
+				return true;
 			}
 		}
 		return false;
@@ -209,7 +210,6 @@ class OC_User {
 	 */
 	public static function setUserId($uid) {
 		$_SESSION['user_id'] = $uid;
-		OC_Hook::emit( "OC_User", "post_login", array( "uid" => $uid ));
 		return true;
 	}
 
diff --git a/lib/util.php b/lib/util.php
index 05caeca0e3e..2fd1dd543d6 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -8,6 +8,7 @@ class OC_Util {
 	public static $scripts=array();
 	public static $styles=array();
 	public static $headers=array();
+	private static $rootMounted=false;
 	private static $fsSetup=false;
 
 	// Can be set up
@@ -35,9 +36,12 @@ class OC_Util {
 			$user = OC_User::getUser();
 		}
 
-		if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
-			//first set up the local "root" storage
+		//first set up the local "root" storage
+		if(!self::$rootMounted){
 			OC_Filesystem::mount('OC_Filestorage_Local',array('datadir'=>$CONFIG_DATADIRECTORY_ROOT),'/');
+			self::$rootMounted=true;
+		}
+		if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
 
 			OC::$CONFIG_DATADIRECTORY = $CONFIG_DATADIRECTORY_ROOT."/$user/$root";
 			if( !is_dir( OC::$CONFIG_DATADIRECTORY )){