From 584d882c65b2edefc6314c40394f4c00195a432e Mon Sep 17 00:00:00 2001
From: Victor Dubiniuk <victor.dubiniuk@gmail.com>
Date: Fri, 20 Sep 2013 12:41:37 +0300
Subject: [PATCH] Resolve path to shared items for current user

---
 ajax/sessionController.php |  4 ++--
 lib/storage.php            | 28 +++++++++++++++++++---------
 lib/view.php               | 13 ++++++-------
 3 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/ajax/sessionController.php b/ajax/sessionController.php
index e20ce937..04f90b3a 100644
--- a/ajax/sessionController.php
+++ b/ajax/sessionController.php
@@ -75,11 +75,11 @@ class SessionController extends Controller{
 			}
 			
 			$path = Storage::getFilePath($session['file_id']);
-			$view = new \OC\Files\View('/' . $session['owner']);
+			$view = new \OC\Files\View('/' . $uid);
 
 			$isWritable = ($view->file_exists($path) && $view->isUpdatable($path)) || $view->isCreatable($path);
 			if (!$isWritable){
-				throw new \Exception('Document does not exist or is not writable for this user');
+				throw new \Exception($path . ' does not exist or is not writable for user ' . $uid);
 			}
 			
 			if ($view->file_exists($path)){
diff --git a/lib/storage.php b/lib/storage.php
index 27d7fcf0..cd1dbf4f 100755
--- a/lib/storage.php
+++ b/lib/storage.php
@@ -55,20 +55,30 @@ class Storage {
 		$path = @$fileInfo[1];
 
 		if (!$path){
-			throw new \Exception('File not found in cache');
+			throw new \Exception($fileId . ' can not be resolved');
 		}
 		
-		// Strip /files infront of the path
-		$normalizedPath = preg_replace('/^\/?files/', '', $path);
-		if (!\OC\Files\Filesystem::file_exists($path)
-				&& \OC\Files\Filesystem::file_exists('/Shared' . $normalizedPath)
-				&& \OC\Files\Filesystem::is_file('/Shared' . $normalizedPath)
-		){
+		$internalPath = preg_replace('/^\/?files/', '', $path);
+		if (!\OC\Files\Filesystem::file_exists($internalPath)){
+			$sharedInfo = \OCP\Share::getItemSharedWithBySource(
+						'file', 
+						$fileId,
+						\OCP\Share::FORMAT_NONE,
+						null,
+						true
+					);
+			if (!$sharedInfo){
+				throw new \Exception($path . ' can not be resolved in shared cache');
+			}
 			// this file is shared
-			$normalizedPath = '/Shared' . $normalizedPath;
+			$internalPath = 'Shared' . $sharedInfo['file_target'];
 		}
 		
-		return $normalizedPath;
+		if (!\OC\Files\Filesystem::file_exists($internalPath)){
+			throw new \Exception($path . ' doesn\'t exist');
+		}
+		
+		return 'files/' . $internalPath;
 	}	
 
 	/**
diff --git a/lib/view.php b/lib/view.php
index 78074a36..90e61fed 100644
--- a/lib/view.php
+++ b/lib/view.php
@@ -36,18 +36,17 @@ class View extends \OC\Files\View{
 		
 		$view = new \OC\Files\View('/' . $uid);
 		
-		$relPath = '/files' . $filePath;
-		if (!$view->file_exists($relPath)){
-			throw new \Exception('Original document doesn\'t exist any more');
+		if (!$view->file_exists($filePath)){
+			throw new \Exception($filePath . ' doesn\'t exist');
 		}
 		
-		if (!$view->is_file($relPath)){
-			throw new \Exception('Object ' . $relPath . ' is not a file.');
+		if (!$view->is_file($filePath)){
+			throw new \Exception('Object ' . $filePath . ' is not a file.');
 		}
 		
-		$newName = '/' . sha1($view->file_get_contents($relPath)) . '.odt';
+		$newName = '/' . sha1($view->file_get_contents($filePath)) . '.odt';
 
-		$view->copy($relPath, self::DOCUMENTS_DIRNAME . $newName);
+		$view->copy($filePath, self::DOCUMENTS_DIRNAME . $newName);
 		\OC_FileProxy::$enabled = $proxyStatus;
 		return $newName;
 	}