From a1f200c1e5a4814d63561e581b7917270444e463 Mon Sep 17 00:00:00 2001
From: Sam Tuke <samtuke@owncloud.com>
Date: Tue, 5 Feb 2013 15:59:28 +0000
Subject: [PATCH] Cleaned up path formatting with new method
 stripUserFilesPath()

---
 apps/files_encryption/lib/crypt.php | 13 ++++---------
 apps/files_encryption/lib/util.php  | 29 ++++++++++++++++++-----------
 2 files changed, 22 insertions(+), 20 deletions(-)

diff --git a/apps/files_encryption/lib/crypt.php b/apps/files_encryption/lib/crypt.php
index 7f96702b76..ff7d6dfb1f 100755
--- a/apps/files_encryption/lib/crypt.php
+++ b/apps/files_encryption/lib/crypt.php
@@ -182,16 +182,11 @@ class Crypt {
 	
         /**
          * @brief Check if a file is encrypted via legacy system
+         * @param string $relPath The path of the file, relative to user/data;
+         *        e.g. filename or /Docs/filename, NOT admin/files/filename
          * @return true / false
          */
-	public static function isLegacyEncryptedContent( $data, $path ) {
-	
-		$trimmed = ltrim( $path, '/' );
-		
-		// Path must not include user/files
-		$split = explode( '/', $trimmed );
-		$sliced = array_slice( $split, 2 );
-		$relPath = implode( '/', $sliced );
+	public static function isLegacyEncryptedContent( $data, $relPath ) {
 		
 // 		trigger_error("REL PATH = ".var_export($relPath, 1));
 		
@@ -200,7 +195,7 @@ class Crypt {
 		// Fetch all file metadata from DB
 		$metadata = \OC\Files\Filesystem::getFileInfo( $relPath, '' );
 		
-		trigger_error("PATH = ". var_export($trimmed, 1)."   METADATA = ".var_export($metadata['encrypted'], 1));
+		trigger_error("PATH = ". var_export($relPath, 1)."   METADATA = ".var_export($metadata['encrypted'], 1));
 		
 		// If a file is flagged with encryption in DB, but isn't a 
 		// valid content + IV combination, it's probably using the 
diff --git a/apps/files_encryption/lib/util.php b/apps/files_encryption/lib/util.php
index 89fe79b6ff..a16bf94160 100644
--- a/apps/files_encryption/lib/util.php
+++ b/apps/files_encryption/lib/util.php
@@ -251,6 +251,7 @@ class Util {
 				) {
 					
 					$filePath = $directory . '/' . $this->view->getRelativePath( '/' . $file );
+					$relPath = $this->stripUserFilesPath( $filePath );
 					
 					// If the path is a directory, search 
 					// its contents
@@ -286,7 +287,7 @@ class Util {
 						
 						// If the file uses old 
 						// encryption system
-						} elseif (  Crypt::isLegacyEncryptedContent( $this->view->file_get_contents( $filePath ), $filePath ) ) {
+						} elseif (  Crypt::isLegacyEncryptedContent( $this->view->file_get_contents( $filePath ), $relPath ) ) {
 							
 							$found['legacy'][] = array( 'name' => $file, 'path' => $filePath );
 							
@@ -341,6 +342,20 @@ class Util {
 	
 	}
 	
+	/**
+	 * @brief Format a path to be relative to the /user/files/ directory
+	 */
+	public function stripUserFilesPath( $path ) {
+	
+		$trimmed = ltrim( $path, '/' );
+		$split = explode( '/', $trimmed );
+		$sliced = array_slice( $split, 2 );
+		$relPath = implode( '/', $sliced );
+		
+		return $relPath;
+	
+	}
+	
 	/**
 	 * @brief Encrypt all files in a directory
 	 * @param string $publicKey the public key to encrypt files with
@@ -365,11 +380,7 @@ class Util {
 				// Encrypt data, generate catfile
 				$encrypted = Crypt::keyEncryptKeyfile( $plainData, $publicKey );
 				
-				// Format path to be relative to user files dir
-				$trimmed = ltrim( $plainFile['path'], '/' );
-				$split = explode( '/', $trimmed );
-				$sliced = array_slice( $split, 2 );
-				$relPath = implode( '/', $sliced );
+				$relPath = $this->stripUserFilesPath( $plainFile['path'] );
 				
 				// Save keyfile
 				Keymanager::setFileKey( $this->view, $relPath, $this->userId, $encrypted['key'] );
@@ -401,11 +412,7 @@ class Util {
 					// Recrypt data, generate catfile
 					$recrypted = Crypt::legacyKeyRecryptKeyfile( $legacyData, $legacyPassphrase, $publicKey, $newPassphrase );
 					
-					// Format path to be relative to user files dir
-					$trimmed = ltrim( $legacyFile['path'], '/' );
-					$split = explode( '/', $trimmed );
-					$sliced = array_slice( $split, 2 );
-					$relPath = implode( '/', $sliced );
+					$relPath = $this->stripUserFilesPath( $legacyFile['path'] );
 					
 					// Save keyfile
 					Keymanager::setFileKey( $this->view, $relPath, $this->userId, $recrypted['key'] );