fix: Use proper path for quota fetching

Signed-off-by: Julius Härtl <jus@bitgrid.net>

apps/dav/lib/Connector/Sabre/Directory.php

@@ -325,8 +325,14 @@ class Directory extends \OCA\DAV\Connector\Sabre\Node implements \Sabre\DAV\ICol
 		if ($this->quotaInfo) {
 			return $this->quotaInfo;
 		}
+		$relativePath = $this->fileView->getRelativePath($this->info->getPath());
+		if ($relativePath === null) {
+			$logger->warning("error while getting quota as the relative path cannot be found");
+			return [0, 0];
+		}
+
 		try {
-			$storageInfo = \OC_Helper::getStorageInfo($this->info->getPath(), $this->info, false);
+			$storageInfo = \OC_Helper::getStorageInfo($relativePath, $this->info, false);
 			if ($storageInfo['quota'] === \OCP\Files\FileInfo::SPACE_UNLIMITED) {
 				$free = \OCP\Files\FileInfo::SPACE_UNLIMITED;
 			} else {

apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php

@@ -304,6 +304,10 @@ class DirectoryTest extends \Test\TestCase {
 			->method('free_space')
 			->willReturn(800);
 
+		$this->info->expects($this->any())
+			->method('getPath')
+			->willReturn('/admin/files/foo');
+
 		$this->info->expects($this->once())
 			->method('getSize')
 			->willReturn(200);
@@ -312,6 +316,10 @@ class DirectoryTest extends \Test\TestCase {
 			->method('getMountPoint')
 			->willReturn($mountPoint);
 
+		$this->view->expects($this->any())
+			->method('getRelativePath')
+			->willReturn('/foo');
+
 		$mountPoint->method('getMountPoint')
 			->willReturn('/user/files/mymountpoint');
 
@@ -359,6 +367,10 @@ class DirectoryTest extends \Test\TestCase {
 		$mountPoint->method('getMountPoint')
 			->willReturn('/user/files/mymountpoint');
 
+		$this->view->expects($this->any())
+			->method('getRelativePath')
+			->willReturn('/foo');
+
 		$dir = new Directory($this->view, $this->info);
 		$this->assertEquals([200, 800], $dir->getQuotaInfo()); //200 used, 800 free
 	}

lib/private/Files/View.php

@@ -164,7 +164,7 @@ class View {
 	 * get path relative to the root of the view
 	 *
 	 * @param string $path
-	 * @return string
+	 * @return ?string
 	 */
 	public function getRelativePath($path) {
 		$this->assertPathLength($path);
@@ -1241,7 +1241,7 @@ class View {
 	 * get the path relative to the default root for hook usage
 	 *
 	 * @param string $path
-	 * @return string
+	 * @return ?string
 	 */
 	private function getHookPath($path) {
 		if (!Filesystem::getView()) {

lib/private/legacy/OC_Helper.php

@@ -473,7 +473,7 @@ class OC_Helper {
 		if (!$view) {
 			throw new \OCP\Files\NotFoundException();
 		}
-		$fullPath = $view->getAbsolutePath($path);
+		$fullPath = Filesystem::normalizePath($view->getAbsolutePath($path));
 
 		$cacheKey = $fullPath. '::' . ($includeMountPoints ? 'include' : 'exclude');
 		if ($useCache) {
@@ -624,9 +624,9 @@ class OC_Helper {
 		/** @var ICacheFactory $cacheFactory */
 		$cacheFactory = \OC::$server->get(ICacheFactory::class);
 		$memcache = $cacheFactory->createLocal('storage_info');
-		$cacheKey = Filesystem::normalizePath($absolutePath) . '::';
-		$memcache->remove($cacheKey . 'include');
-		$memcache->remove($cacheKey . 'exclude');
+		$cacheKeyPrefix = Filesystem::normalizePath($absolutePath) . '::';
+		$memcache->remove($cacheKeyPrefix . 'include');
+		$memcache->remove($cacheKeyPrefix . 'exclude');
 	}
 
 	/**