CHeck if file already exists during file creation

Signed-off-by: Julius Härtl <jus@bitgrid.net>
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

lib/private/DirectEditing/Manager.php

@@ -123,6 +123,10 @@ class Manager implements IManager {
 
 	public function create(string $path, string $editorId, string $creatorId, $templateId = null): string {
 		$userFolder = $this->rootFolder->getUserFolder($this->userId);
+		try {
+			$file = $userFolder->get($path);
+			throw new \RuntimeException('File already exists');
+		} catch (\OCP\Files\NotFoundException $e) {
 			$file = $userFolder->newFile($path);
 			$editor = $this->getEditor($editorId);
 			$creators = $editor->getCreators();
@@ -132,6 +136,8 @@ class Manager implements IManager {
 					return $this->createToken($editorId, $file, $path);
 				}
 			}
+		}
+
 		throw new \RuntimeException('No creator found');
 	}
 

tests/lib/DirectEditing/ManagerTest.php

@@ -12,6 +12,7 @@ use OCP\DirectEditing\IEditor;
 use OCP\DirectEditing\IToken;
 use OCP\Files\Folder;
 use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
 use OCP\IDBConnection;
 use OCP\IL10N;
 use OCP\IUserSession;
@@ -151,6 +152,10 @@ class ManagerTest extends TestCase {
 		$this->random->expects($this->once())
 			->method('generate')
 			->willReturn($expectedToken);
+		$this->userFolder
+			->method('get')
+			->with('/File.txt')
+			->willThrowException(new NotFoundException());
 		$this->userFolder->expects($this->once())
 			->method('newFile')
 			->willReturn($file);
@@ -167,6 +172,10 @@ class ManagerTest extends TestCase {
 		$this->random->expects($this->once())
 			->method('generate')
 			->willReturn($expectedToken);
+		$this->userFolder
+			->method('get')
+			->with('/File.txt')
+			->willThrowException(new NotFoundException());
 		$this->userFolder->expects($this->once())
 			->method('newFile')
 			->willReturn($file);
@@ -177,4 +186,10 @@ class ManagerTest extends TestCase {
 		$this->assertInstanceOf(NotFoundResponse::class, $secondResult);
 	}
 
+	public function testCreateFileAlreadyExists() {
+		$this->expectException(\RuntimeException::class);
+
+		$this->manager->create('/File.txt', 'testeditor', 'createEmpty');
+	}
+
 }