Merge pull request #3304 from owncloud/fix_bypass_fo_file_blacklist

Properly check file blacklist

lib/files/cache/scanner.php

@@ -62,7 +62,9 @@ class Scanner {
 	 * @return array with metadata of the scanned file
 	 */
 	public function scanFile($file, $checkExisting = false) {
-		if (!self::isIgnoredFile($file)) {
+		if ( ! self::isPartialFile($file)
+			and ! \OC\Files\Filesystem::isFileBlacklisted($file)
+		) {
 			\OC_Hook::emit('\OC\Files\Cache\Scanner', 'scan_file', array('path' => $file, 'storage' => $this->storageId));
 			$data = $this->getData($file);
 			if ($data) {
@@ -166,10 +168,8 @@ class Scanner {
 	 * @param String $file
 	 * @return boolean
 	 */
-	public static function isIgnoredFile($file) {
-		if (pathinfo($file, PATHINFO_EXTENSION) === 'part'
-			|| \OC\Files\Filesystem::isFileBlacklisted($file)
-		) {
+	public static function isPartialFile($file) {
+		if (pathinfo($file, PATHINFO_EXTENSION) === 'part') {
 			return true;
 		}
 		return false;

lib/files/view.php

@@ -263,12 +263,13 @@ class View {
 		if (is_resource($data)) { //not having to deal with streams in file_put_contents makes life easier
 			$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
 			if (\OC_FileProxy::runPreProxies('file_put_contents', $absolutePath, $data)
-				&& Filesystem::isValidPath($path)
+				and Filesystem::isValidPath($path)
+				and ! Filesystem::isFileBlacklisted($path)
 			) {
 				$path = $this->getRelativePath($absolutePath);
 				$exists = $this->file_exists($path);
 				$run = true;
-				if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isIgnoredFile($path)) {
+				if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isPartialFile($path)) {
 					if (!$exists) {
 						\OC_Hook::emit(
 							Filesystem::CLASSNAME,
@@ -296,7 +297,7 @@ class View {
 					list ($count, $result) = \OC_Helper::streamCopy($data, $target);
 					fclose($target);
 					fclose($data);
-					if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isIgnoredFile($path)) {
+					if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isPartialFile($path)) {
 						if (!$exists) {
 							\OC_Hook::emit(
 								Filesystem::CLASSNAME,
@@ -340,6 +341,7 @@ class View {
 			\OC_FileProxy::runPreProxies('rename', $absolutePath1, $absolutePath2)
 			and Filesystem::isValidPath($path2)
 			and Filesystem::isValidPath($path1)
+			and ! Filesystem::isFileBlacklisted($path2)
 		) {
 			$path1 = $this->getRelativePath($absolutePath1);
 			$path2 = $this->getRelativePath($absolutePath2);
@@ -348,7 +350,7 @@ class View {
 				return false;
 			}
 			$run = true;
-			if ($this->fakeRoot == Filesystem::getRoot()) {
+			if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isPartialFile($path1)) {
 				\OC_Hook::emit(
 					Filesystem::CLASSNAME, Filesystem::signal_rename,
 					array(
@@ -376,7 +378,7 @@ class View {
 					list($storage1, $internalPath1) = Filesystem::resolvePath($absolutePath1 . $postFix1);
 					$storage1->unlink($internalPath1);
 				}
-				if ($this->fakeRoot == Filesystem::getRoot()) {
+				if ($this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isPartialFile($path1)) {
 					\OC_Hook::emit(
 						Filesystem::CLASSNAME,
 						Filesystem::signal_post_rename,
@@ -404,6 +406,7 @@ class View {
 			\OC_FileProxy::runPreProxies('copy', $absolutePath1, $absolutePath2)
 			and Filesystem::isValidPath($path2)
 			and Filesystem::isValidPath($path1)
+			and ! Filesystem::isFileBlacklisted($path2)
 		) {
 			$path1 = $this->getRelativePath($absolutePath1);
 			$path2 = $this->getRelativePath($absolutePath2);
@@ -606,7 +609,10 @@ class View {
 	private function basicOperation($operation, $path, $hooks = array(), $extraParam = null) {
 		$postFix = (substr($path, -1, 1) === '/') ? '/' : '';
 		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		if (\OC_FileProxy::runPreProxies($operation, $absolutePath, $extraParam) and Filesystem::isValidPath($path)) {
+		if (\OC_FileProxy::runPreProxies($operation, $absolutePath, $extraParam)
+			and Filesystem::isValidPath($path)
+			and ! Filesystem::isFileBlacklisted($path)
+		) {
 			$path = $this->getRelativePath($absolutePath);
 			if ($path == null) {
 				return false;
@@ -635,7 +641,7 @@ class View {
 	private function runHooks($hooks, $path, $post = false) {
 		$prefix = ($post) ? 'post_' : '';
 		$run = true;
-		if (Filesystem::$loaded and $this->fakeRoot == Filesystem::getRoot() && !Cache\Scanner::isIgnoredFile($path)) {
+		if (Filesystem::$loaded and $this->fakeRoot == Filesystem::getRoot()) {
 			foreach ($hooks as $hook) {
 				if ($hook != 'read') {
 					\OC_Hook::emit(