fix: rework UploadFolder implementation

Signed-off-by: Robin Appelman <robin@icewind.nl>

[skip ci]

Author: icewind1991

apps/dav/lib/Upload/RootCollection.php

@@ -26,6 +26,8 @@
  */
 namespace OCA\DAV\Upload;
 
+use OCP\Files\IRootFolder;
+use OCP\IUserSession;
 use Sabre\DAVACL\AbstractPrincipalCollection;
 use Sabre\DAVACL\PrincipalBackend;
 
@@ -45,7 +47,7 @@ public function __construct(PrincipalBackend\BackendInterface $principalBackend,
 	 * @inheritdoc
 	 */
 	public function getChildForPrincipal(array $principalInfo): UploadHome {
-		return new UploadHome($principalInfo, $this->cleanupService);
+		return new UploadHome($principalInfo, $this->cleanupService, $this->rootFolder, $this->userSession);
 	}
 
 	/**

apps/dav/lib/Upload/UploadHome.php

@@ -25,7 +25,6 @@
  */
 namespace OCA\DAV\Upload;
 
-use OC\Files\Filesystem;
 use OC\Files\View;
 use OCA\DAV\Connector\Sabre\Directory;
 use Sabre\DAV\Exception\Forbidden;
@@ -84,13 +83,24 @@ public function getLastModified() {
 		return $this->impl()->getLastModified();
 	}
 
-	/**
-	 * @return Directory
-	 */
-	private function impl() {
-		$view = $this->getView();
-		$rootInfo = $view->getFileInfo('');
-		return new Directory($view, $rootInfo);
+	private function getUploadFolder(): Folder {
+		if ($this->uploadFolder === null) {
+			$user = $this->userSession->getUser();
+			if (!$user) {
+				throw new Forbidden('Not logged in');
+			}
+			$path = '/' . $user->getUID() . '/uploads';
+			try {
+				$folder = $this->rootFolder->get($path);
+				if (!$folder instanceof Folder) {
+					throw new \Exception('Upload folder is a file');
+				}
+				$this->uploadFolder = $folder;
+			} catch (NotFoundException $e) {
+				$this->uploadFolder = $this->rootFolder->newFolder($path);
+			}
+		}
+		return $this->uploadFolder;
 	}
 
 	private function getView() {
@@ -104,8 +114,6 @@ private function getView() {
 	}
 
 	private function getStorage() {
-		$view = $this->getView();
-		$storage = $view->getFileInfo('')->getStorage();
-		return $storage;
+		return $this->getUploadFolder()->getStorage();
 	}
 }