From 2f213eea9f6376dd9efb92da4e957a16354da7b8 Mon Sep 17 00:00:00 2001
From: Vitor Mattos <vitor@php.rio>
Date: Tue, 26 Nov 2024 18:39:50 -0300
Subject: [PATCH] fix: prevent don't delete file when folder is deleted

When we delete the LibreSign folder and remove from trash, is necessary
to delete LibreSign files too

Signed-off-by: Vitor Mattos <vitor@php.rio>
---
 lib/AppInfo/Application.php                   |  2 +
 lib/Listener/BeforeNodeDeletedListener.php    | 47 ++++++++++---------
 src/Components/Request/VisibleElements.vue    |  5 +-
 .../AEnvironmentPageAwareControllerTest.php   |  5 +-
 4 files changed, 32 insertions(+), 27 deletions(-)

diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 5a64908f61..a12a3b9f96 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -29,6 +29,7 @@
 use OCP\AppFramework\Bootstrap\IBootstrap;
 use OCP\AppFramework\Bootstrap\IRegistrationContext;
 use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Files\Cache\CacheEntryRemovedEvent;
 use OCP\Files\Events\Node\BeforeNodeDeletedEvent;
 use OCP\User\Events\UserDeletedEvent;
 
@@ -59,6 +60,7 @@ public function register(IRegistrationContext $context): void {
 
 		$context->registerEventListener(LoadSidebar::class, LoadSidebarListener::class);
 		$context->registerEventListener(BeforeNodeDeletedEvent::class, BeforeNodeDeletedListener::class);
+		$context->registerEventListener(CacheEntryRemovedEvent::class, BeforeNodeDeletedListener::class);
 		$context->registerEventListener(SignedEvent::class, SignedListener::class);
 
 		// Files newFile listener
diff --git a/lib/Listener/BeforeNodeDeletedListener.php b/lib/Listener/BeforeNodeDeletedListener.php
index ca303f8839..fc242e2cf4 100644
--- a/lib/Listener/BeforeNodeDeletedListener.php
+++ b/lib/Listener/BeforeNodeDeletedListener.php
@@ -14,12 +14,13 @@
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventListener;
+use OCP\Files\Cache\CacheEntryRemovedEvent;
 use OCP\Files\Events\Node\BeforeNodeDeletedEvent;
 use OCP\Files\File;
 use OCP\IDBConnection;
 
 /**
- * @template-implements IEventListener<Event|BeforeNodeDeletedEvent>
+ * @template-implements IEventListener<Event|BeforeNodeDeletedEvent|CacheEntryRemovedEvent>
  */
 class BeforeNodeDeletedListener implements IEventListener {
 	public function __construct(
@@ -30,17 +31,25 @@ public function __construct(
 	}
 
 	public function handle(Event $event): void {
-		if (!$event instanceof BeforeNodeDeletedEvent) {
+		if ($event instanceof BeforeNodeDeletedEvent) {
+			$node = $event->getNode();
+			if (!$node instanceof File) {
+				return;
+			}
+			if (!in_array($node->getMimeType(), ValidateHelper::VALID_MIMETIPE)) {
+				return;
+			}
+			$nodeId = $node->getId();
+			$this->delete($nodeId);
 			return;
 		}
-		$node = $event->getNode();
-		if (!$node instanceof File) {
-			return;
-		}
-		if (!in_array($node->getMimeType(), ValidateHelper::VALID_MIMETIPE)) {
-			return;
+		if ($event instanceof CacheEntryRemovedEvent) {
+			$this->delete($event->getFileId());
 		}
-		$nodeId = $node->getId();
+		return;
+	}
+
+	private function delete(int $nodeId): void {
 		$type = $this->fileMapper->getFileType($nodeId);
 		if ($type === 'not_libresign_file') {
 			return;
@@ -53,24 +62,16 @@ public function handle(Event $event): void {
 				break;
 			case 'file':
 				$libresignFile = $this->fileMapper->getByFileId($nodeId);
-				if ($libresignFile->getStatus() === $libresignFile::STATUS_SIGNED) {
-					$libresignFile->setNodeId(null);
-					$this->fileMapper->update($libresignFile);
-					break;
-				}
 				$this->requestSignatureService->deleteRequestSignature(['file' => ['fileId' => $nodeId]]);
+				$this->fileMapper->delete($libresignFile);
 				break;
 			case 'user_element':
 			case 'file_element':
-				$this->deleteByType($nodeId, $type);
+				$field = $type === 'file' ? 'node_id' : 'file_id';
+				$qb = $this->db->getQueryBuilder();
+				$qb->delete('libresign_' . $type)
+					->where($qb->expr()->eq($field, $qb->createNamedParameter($nodeId, IQueryBuilder::PARAM_INT)))
+					->executeStatement();
 		}
 	}
-
-	private function deleteByType(int $nodeId, string $type): void {
-		$field = $type === 'file' ? 'node_id' : 'file_id';
-		$qb = $this->db->getQueryBuilder();
-		$qb->delete('libresign_' . $type)
-			->where($qb->expr()->eq($field, $qb->createNamedParameter($nodeId, IQueryBuilder::PARAM_INT)))
-			->executeStatement();
-	}
 }
diff --git a/src/Components/Request/VisibleElements.vue b/src/Components/Request/VisibleElements.vue
index dad044cd58..1a35eb654d 100644
--- a/src/Components/Request/VisibleElements.vue
+++ b/src/Components/Request/VisibleElements.vue
@@ -260,8 +260,11 @@ export default {
 			}))
 		},
 		async goToSign() {
+			// after save, the document is no more acessible by this way,
+			// this is the reason to retain the UUID before save action
+			const uuid = this.document.settings.signerFileUuid
 			if (await this.save()) {
-				const route = this.$router.resolve({ name: 'SignPDF', params: { uuid: this.document.settings.signerFileUuid } })
+				const route = this.$router.resolve({ name: 'SignPDF', params: { uuid } })
 				window.location.href = route.href
 			}
 		},
diff --git a/tests/Unit/Controller/AEnvironmentPageAwareControllerTest.php b/tests/Unit/Controller/AEnvironmentPageAwareControllerTest.php
index 8aa8a33a3c..a56f8a16c8 100644
--- a/tests/Unit/Controller/AEnvironmentPageAwareControllerTest.php
+++ b/tests/Unit/Controller/AEnvironmentPageAwareControllerTest.php
@@ -97,10 +97,9 @@ public function testLoadFileUuidWhenFileNotFound(): void {
 		$this->expectExceptionCode(404);
 		$this->expectExceptionMessage(json_encode([
 			'action' => 2000,
-			'errors' => ['File not found'],
+			'errors' => ['Invalid UUID'],
 		]));
 
-		$signers = $this->getSignersFromFileId($file->getId());
-		$this->controller->loadNextcloudFileFromSignRequestUuid($signers[0]->getUuid());
+		$this->controller->validateSignRequestUuid($file->getUuid());
 	}
 }