From 2c8e5ec84ff98088fb9e3b275735098beaa5e27f Mon Sep 17 00:00:00 2001
From: Björn Schießle <schiessle@owncloud.com>
Date: Mon, 10 Jun 2013 11:03:07 +0200
Subject: user interface to allow user to decrypt all his files once the
 encryption app was disabled

Conflicts:
	settings/templates/personal.php
---
 apps/files_encryption/lib/helper.php | 27 +++++++++++++++++++++++++++
 apps/files_encryption/lib/proxy.php  |  6 +++---
 apps/files_encryption/lib/stream.php | 14 +++++++++-----
 3 files changed, 39 insertions(+), 8 deletions(-)

(limited to 'apps/files_encryption')

diff --git a/apps/files_encryption/lib/helper.php b/apps/files_encryption/lib/helper.php
index 6eee8fed6a6..f5a5d269a69 100755
--- a/apps/files_encryption/lib/helper.php
+++ b/apps/files_encryption/lib/helper.php
@@ -199,12 +199,39 @@ class Helper {
 	public static function stripUserFilesPath($path) {
 		$trimmed = ltrim($path, '/');
 		$split = explode('/', $trimmed);
+		
+		// it is not a file relative to data/user/files
+		if ($split[1] !== 'files') {
+			return false;
+		}
+		
 		$sliced = array_slice($split, 2);
 		$relPath = implode('/', $sliced);
 
 		return $relPath;
 	}
 
+	/**
+	 * @brief get path to the correspondig file in data/user/files
+	 * @param string $path path to a version or a file in the trash
+	 * @return string path to correspondig file relative to data/user/files
+	 */
+	public static function getPathToRealFile($path) {
+		$trimmed = ltrim($path, '/');
+		$split = explode('/', $trimmed);
+		
+		if ($split[1] !== "files_versions") {
+			return false;
+		}
+		
+		$sliced = array_slice($split, 2);
+		$realPath = implode('/', $sliced);
+		//remove the last .v
+		$realPath = substr($realPath, 0, strrpos($realPath, '.v'));
+
+		return $realPath;
+	}	
+	
 	/**
 	 * @brief redirect to a error page
 	 */
diff --git a/apps/files_encryption/lib/proxy.php b/apps/files_encryption/lib/proxy.php
index 735eba911a9..12fee750a6a 100644
--- a/apps/files_encryption/lib/proxy.php
+++ b/apps/files_encryption/lib/proxy.php
@@ -116,7 +116,7 @@ class Proxy extends \OC_FileProxy {
 					return true;
 				}
 
-				$handle = fopen('crypt://' . $relativePath . '.etmp', 'w');
+				$handle = fopen('crypt://' . $path . '.etmp', 'w');
 				if (is_resource($handle)) {
 
 					// write data to stream
@@ -296,14 +296,14 @@ class Proxy extends \OC_FileProxy {
 
 			// Open the file using the crypto stream wrapper 
 			// protocol and let it do the decryption work instead
-			$result = fopen('crypt://' . $relativePath, $meta['mode']);
+			$result = fopen('crypt://' . $path, $meta['mode']);
 
 		} elseif (
 			self::shouldEncrypt($path)
 			and $meta ['mode'] !== 'r'
 				and $meta['mode'] !== 'rb'
 		) {
-			$result = fopen('crypt://' . $relativePath, $meta['mode']);
+			$result = fopen('crypt://' . $path, $meta['mode']);
 		}
 
 		// Re-enable the proxy
diff --git a/apps/files_encryption/lib/stream.php b/apps/files_encryption/lib/stream.php
index 3c1eb2c5f5e..2f7af1410b9 100644
--- a/apps/files_encryption/lib/stream.php
+++ b/apps/files_encryption/lib/stream.php
@@ -73,7 +73,7 @@ class Stream {
 	private $privateKey;
 
 	/**
-	 * @param $path
+	 * @param $path raw path relative to data/
 	 * @param $mode
 	 * @param $options
 	 * @param $opened_path
@@ -93,12 +93,16 @@ class Stream {
 
 		$this->userId = $util->getUserId();
 
-		// Strip identifier text from path, this gives us the path relative to data/<user>/files
-		$this->relPath = \OC\Files\Filesystem::normalizePath(str_replace('crypt://', '', $path));
-
 		// rawPath is relative to the data directory
-		$this->rawPath = $util->getUserFilesDir() . $this->relPath;
+		$this->rawPath = \OC\Files\Filesystem::normalizePath(str_replace('crypt://', '', $path));
 
+		// Strip identifier text from path, this gives us the path relative to data/<user>/files
+		$this->relPath = Helper::stripUserFilesPath($this->rawPath);
+		// if raw path doesn't point to a real file, check if it is a version or a file in the trash bin
+		if ($this->relPath === false) {
+			$this->relPath = Helper::getPathToRealFile($this->rawPath);
+		}
+		
 		// Disable fileproxies so we can get the file size and open the source file without recursive encryption
 		$proxyStatus = \OC_FileProxy::$enabled;
 		\OC_FileProxy::$enabled = false;
-- 
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