use strict equals in readdir loops to prevent issues with '0' files

apps/files_external/lib/amazons3.php

@@ -183,7 +183,7 @@ class AmazonS3 extends \OC\Files\Storage\Common {
 		}
 
 		$dh = $this->opendir($path);
-		while ($file = readdir($dh)) {
+		while (($file = readdir($dh)) !== false) {
 			if ($file === '.' || $file === '..') {
 				continue;
 			}
@@ -464,7 +464,7 @@ class AmazonS3 extends \OC\Files\Storage\Common {
 			}
 
 			$dh = $this->opendir($path1);
-			while ($file = readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if ($file === '.' || $file === '..') {
 					continue;
 				}

apps/files_external/lib/google.php

@@ -206,7 +206,7 @@ class Google extends \OC\Files\Storage\Common {
 	public function rmdir($path) {
 		if (trim($path, '/') === '') {
 			$dir = $this->opendir($path);
-			while ($file = readdir($dir)) {
+			while (($file = readdir($dh)) !== false) {
 				if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
 					if (!$this->unlink($path.'/'.$file)) {
 						return false;

apps/files_external/lib/irods.php

@@ -137,7 +137,7 @@ class iRODS extends \OC\Files\Storage\StreamWrapper{
 	private function collectionMTime($path) {
 		$dh = $this->opendir($path);
 		$lastCTime = $this->filemtime($path);
-		while ($file = readdir($dh)) {
+		while (($file = readdir($dh)) !== false) {
 			if ($file != '.' and $file != '..') {
 				$time = $this->filemtime($file);
 				if ($time > $lastCTime) {

apps/files_external/lib/smb.php

@@ -99,7 +99,7 @@ class SMB extends \OC\Files\Storage\StreamWrapper{
 	private function shareMTime() {
 		$dh=$this->opendir('');
 		$lastCtime=0;
-		while($file=readdir($dh)) {
+		while (($file = readdir($dh)) !== false) {
 			if ($file!='.' and $file!='..') {
 				$ctime=$this->filemtime($file);
 				if ($ctime>$lastCtime) {

apps/files_trashbin/index.php

@@ -23,7 +23,7 @@ if ($dir) {
 	$dirlisting = true;
 	$dirContent = $view->opendir($dir);
 	$i = 0;
-	while($entryName = readdir($dirContent)) {
+	while(($entryName = readdir($dirContent)) !== false) {
 		if (!\OC\Files\Filesystem::isIgnoredDir($entryName)) {
 			$pos = strpos($dir.'/', '/', 1);
 			$tmp = substr($dir, 0, $pos);

lib/app.php

@@ -666,7 +666,7 @@ class OC_App{
 			}
 			$dh = opendir( $apps_dir['path'] );
 
-			while( $file = readdir( $dh ) ) {
+			while (($file = readdir($dh)) !== false) {
 
 				if ($file[0] != '.' and is_file($apps_dir['path'].'/'.$file.'/appinfo/app.php')) {
 

lib/archive.php

@@ -121,7 +121,7 @@ abstract class OC_Archive{
 	function addRecursive($path, $source) {
 		if($dh=opendir($source)) {
 			$this->addFolder($path);
-			while($file=readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if($file=='.' or $file=='..') {
 					continue;
 				}

lib/cache/file.php

@@ -80,7 +80,7 @@ class OC_Cache_File{
 		$storage = $this->getStorage();
 		if($storage and $storage->is_dir('/')) {
 			$dh=$storage->opendir('/');
-			while($file=readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
 					$storage->unlink('/'.$file);
 				}
@@ -94,7 +94,7 @@ class OC_Cache_File{
 		if($storage and $storage->is_dir('/')) {
 			$now = time();
 			$dh=$storage->opendir('/');
-			while($file=readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if($file!='.' and $file!='..') {
 					$mtime = $storage->filemtime('/'.$file);
 					if ($mtime < $now) {

lib/cache/fileglobal.php

@@ -69,7 +69,7 @@ class OC_Cache_FileGlobal{
 		$prefix = $this->fixKey($prefix);
 		if($cache_dir and is_dir($cache_dir)) {
 			$dh=opendir($cache_dir);
-			while($file=readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
 					unlink($cache_dir.$file);
 				}
@@ -88,7 +88,7 @@ class OC_Cache_FileGlobal{
 		$cache_dir = self::getCacheDir();
 		if($cache_dir and is_dir($cache_dir)) {
 			$dh=opendir($cache_dir);
-			while($file=readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if($file!='.' and $file!='..') {
 					$mtime = filemtime($cache_dir.$file);
 					if ($mtime < $now) {

lib/connector/sabre/objecttree.php

@@ -88,7 +88,7 @@ class ObjectTree extends \Sabre_DAV_ObjectTree {
 		} else {
 			Filesystem::mkdir($destination);
 			$dh = Filesystem::opendir($source);
-			while ($subnode = readdir($dh)) {
+			while (($subnode = readdir($dh)) !== false) {
 
 				if ($subnode == '.' || $subnode == '..') continue;
 				$this->copy($source . '/' . $subnode, $destination . '/' . $subnode);

lib/files/cache/scanner.php

@@ -159,7 +159,7 @@ class Scanner extends BasicEmitter {
 		$newChildren = array();
 		if ($this->storage->is_dir($path) && ($dh = $this->storage->opendir($path))) {
 			\OC_DB::beginTransaction();
-			while ($file = readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				$child = ($path) ? $path . '/' . $file : $file;
 				if (!Filesystem::isIgnoredDir($file)) {
 					$newChildren[] = $file;

lib/files/storage/common.php

@@ -142,7 +142,7 @@ abstract class Common implements \OC\Files\Storage\Storage {
 			return false;
 		} else {
 			$directoryHandle = $this->opendir($directory);
-			while ($contents = readdir($directoryHandle)) {
+			while (($contents = readdir($directoryHandle)) !== false) {
 				if (!\OC\Files\Filesystem::isIgnoredDir($contents)) {
 					$path = $directory . '/' . $contents;
 					if ($this->is_dir($path)) {
@@ -225,7 +225,7 @@ abstract class Common implements \OC\Files\Storage\Storage {
 
 	private function addLocalFolder($path, $target) {
 		if ($dh = $this->opendir($path)) {
-			while ($file = readdir($dh)) {
+			while (($file = readdir($dh)) !== false) {
 				if ($file !== '.' and $file !== '..') {
 					if ($this->is_dir($path . '/' . $file)) {
 						mkdir($target . '/' . $file);
@@ -243,7 +243,7 @@ abstract class Common implements \OC\Files\Storage\Storage {
 		$files = array();
 		$dh = $this->opendir($dir);
 		if ($dh) {
-			while ($item = readdir($dh)) {
+			while (($item = readdir($dh)) !== false) {
 				if ($item == '.' || $item == '..') continue;
 				if (strstr(strtolower($item), strtolower($query)) !== false) {
 					$files[] = $dir . '/' . $item;

lib/files/view.php

@@ -499,7 +499,7 @@ class View {
 				} else {
 					if ($this->is_dir($path1) && ($dh = $this->opendir($path1))) {
 						$result = $this->mkdir($path2);
-						while ($file = readdir($dh)) {
+						while (($file = readdir($dh)) !== false) {
 							if (!Filesystem::isIgnoredDir($file)) {
 								$result = $this->copy($path1 . '/' . $file, $path2 . '/' . $file);
 							}

lib/installer.php

@@ -109,7 +109,7 @@ class OC_Installer{
 		if(!is_file($extractDir.'/appinfo/info.xml')) {
 			//try to find it in a subdir
 			$dh=opendir($extractDir);
-			while($folder=readdir($dh)) {
+			while (($folder = readdir($dh)) !== false) {
 				if($folder[0]!='.' and is_dir($extractDir.'/'.$folder)) {
 					if(is_file($extractDir.'/'.$folder.'/appinfo/info.xml')) {
 						$extractDir.='/'.$folder;