From f87229ddafff57980bfc93f52d6aff3427e9a0e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Schie=C3=9Fle?= <schiessle@owncloud.com>
Date: Fri, 12 Apr 2013 14:13:38 +0200
Subject: [PATCH] fix stream wrapper to make initial encryption work

---
 apps/files_encryption/lib/keymanager.php | 18 ++++++++++--------
 apps/files_encryption/lib/stream.php     | 19 ++++++++++---------
 apps/files_encryption/lib/util.php       | 11 +++++++----
 3 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/apps/files_encryption/lib/keymanager.php b/apps/files_encryption/lib/keymanager.php
index 9bb062d0fd..3e26e6bb69 100755
--- a/apps/files_encryption/lib/keymanager.php
+++ b/apps/files_encryption/lib/keymanager.php
@@ -113,17 +113,19 @@ class Keymanager {
 		
 		$targetPath = self::keySetPreparation( $view, $path, $basePath, $userId );
 		
-		if ( $view->is_dir( $basePath . '/' . $targetPath ) ) {
-		
-			// FIXME: write me
-		
-		} else {
+		if ( !$view->is_dir( $basePath . '/' . $targetPath ) ) {
 
-			// Save the keyfile in parallel directory
-			$result = $view->file_put_contents( $basePath . '/' . $targetPath . '.key', $catfile );
-		
+			// create all parent folders
+			$info=pathinfo($basePath . '/' . $targetPath);
+			$keyfileFolderName=$view->getLocalFolder($info['dirname']);
+			if(!file_exists($keyfileFolderName)) {
+				mkdir($keyfileFolderName, 0750, true);
+			}
 		}
 		
+		$result = $view->file_put_contents( $basePath . '/' . $targetPath . '.key', $catfile );
+		
+		
 		\OC_FileProxy::$enabled = true;
 		
 		return $result;
diff --git a/apps/files_encryption/lib/stream.php b/apps/files_encryption/lib/stream.php
index 8bacb98126..3bad43de2e 100644
--- a/apps/files_encryption/lib/stream.php
+++ b/apps/files_encryption/lib/stream.php
@@ -52,7 +52,7 @@ class Stream {
 	// TODO: make all below properties private again once unit testing is 
 	// configured correctly
 	public $rawPath; // The raw path received by stream_open
-	public $path_f; // The raw path formatted to include username and data dir
+	public $relPath; // rel path to users file dir
 	private $userId;
 	private $handle; // Resource returned by fopen
 	private $path;
@@ -80,8 +80,9 @@ class Stream {
 		// Strip identifier text from path
 		$this->rawPath = str_replace( 'crypt://', '', $path );
 		
-		// Set file path relative to user files dir
-		$this->relPath = $this->userId . '/files/' . $this->rawPath;
+		// Set file path relative to user files dir (7 = string length of '/files/')
+		$this->relPath = substr($this->rawPath, strlen($this->userId)+7);
+		//$this->relPath = $this->userId . '/files/' . $this->rawPath;
 		
 		if ( 
 		dirname( $this->rawPath ) == 'streams' 
@@ -110,7 +111,7 @@ class Stream {
 
 			} else {
 				
-				$this->size = $this->rootView->filesize( $this->relPath, $mode );
+				$this->size = $this->rootView->filesize( $this->rawPath, $mode );
 				
 				//$this->size = filesize( $this->rawPath );
 				
@@ -121,13 +122,13 @@ class Stream {
 
 			//$this->handle = fopen( $this->rawPath, $mode );
 			
-			$this->handle = $this->rootView->fopen( $this->relPath, $mode );
+			$this->handle = $this->rootView->fopen( $this->rawPath, $mode );
 			
 			\OC_FileProxy::$enabled = true;
 
 			if ( ! is_resource( $this->handle ) ) {
 
-				\OCP\Util::writeLog( 'files_encryption', 'failed to open file "' . $this->relPath . '"', \OCP\Util::ERROR );
+				\OCP\Util::writeLog( 'files_encryption', 'failed to open file "' . $this->rawPath . '"', \OCP\Util::ERROR );
 
 			} else {
 			
@@ -226,13 +227,13 @@ class Stream {
 		
 		// If a keyfile already exists for a file named identically to 
 		// file to be written
-		if ( $this->rootView->file_exists( $this->userId . '/'. 'files_encryption' . '/' . 'keyfiles' . '/' . $this->rawPath . '.key' ) ) {
+		if ( $this->rootView->file_exists( $this->userId . '/'. 'files_encryption' . '/' . 'keyfiles' . '/' . $this->relPath . '.key' ) ) {
 		
 			// TODO: add error handling for when file exists but no 
 			// keyfile
 			
 			// Fetch existing keyfile
-			$this->encKeyfile = Keymanager::getFileKey( $this->rootView, $this->userId, $this->rawPath );
+			$this->encKeyfile = Keymanager::getFileKey( $this->rootView, $this->userId, $this->relPath );
 			
 			$this->getUser();
 			
@@ -317,7 +318,7 @@ class Stream {
 			$userId = \OCP\User::getUser();
 			
 			// Save the new encrypted file key
-			Keymanager::setFileKey( $view, $this->rawPath, $userId, $this->encKeyfile );
+			Keymanager::setFileKey( $view, $this->relPath, $userId, $this->encKeyfile );
 			
 		}
 
diff --git a/apps/files_encryption/lib/util.php b/apps/files_encryption/lib/util.php
index 815f2594ce..4605c0f597 100644
--- a/apps/files_encryption/lib/util.php
+++ b/apps/files_encryption/lib/util.php
@@ -511,17 +511,20 @@ class Util {
 				// Open handle with for binary reading
 				$plainHandle = $this->view->fopen( $plainFile['path'], 'rb' );
 				// Open handle with for binary writing
-				$encHandle = fopen( 'crypt://' . 'var/www/oc6/data/' . $plainFile['path'] . '.tmp', 'ab' );
+
+				$encHandle = fopen( 'crypt://' . $plainFile['path'] . '.tmp', 'wb' );
 				
 				// Overwrite the existing file with the encrypted one
 				//$this->view->file_put_contents( $plainFile['path'], $encrypted['data'] );
 				$size = stream_copy_to_stream( $plainHandle, $encHandle );
-				
+
+				$this->view->rename($plainFile['path'] . '.tmp', $plainFile['path']);
+
 				// Fetch the key that has just been set/updated by the stream
-				$encKey = Keymanager::getFileKey( $this->view, $this->userId, $relPath );
+				//$encKey = Keymanager::getFileKey( $this->view, $this->userId, $relPath );
 				
 				// Save keyfile
-				Keymanager::setFileKey( $this->view, $relPath, $this->userId, $encKey );
+				//Keymanager::setFileKey( $this->view, $relPath, $this->userId, $encKey );
 				
 				// Add the file to the cache
 				\OC\Files\Filesystem::putFileInfo( $plainFile['path'], array( 'encrypted'=>true, 'size' => $size ), '' );