[ticket/15342] Check if is resource before close it

PHPBB3-15342

phpBB/includes/acp/acp_database.php

@@ -187,7 +187,10 @@ class acp_database
 
 								$storage->write_stream($file, $fp);
 
-								fclose($fp);
+								if (is_resource($fp))
+								{
+									fclose($fp);
+								}
 
 								$storage->track_file($file);
 

phpBB/phpbb/attachment/upload.php

@@ -246,8 +246,14 @@ class upload
 			{
 				// Move the thumbnail from temp folder to the storage
 				$fp = fopen($destination, 'rb');
+
 				$this->storage->write_stream($destination_name, $fp);
-				fclose($fp);
+
+				if (is_resource($fp))
+				{
+					fclose($fp);
+				}
+
 				$this->storage->track_file($destination_name);
 			}
 			else

phpBB/phpbb/files/filespec_storage.php

@@ -445,8 +445,14 @@ class filespec_storage
 		try
 		{
 			$fp = fopen($this->filename, 'rb');
+
 			$storage->write_stream($this->destination_file, $fp);
-			fclose($fp);
+
+			if (is_resource($fp))
+			{
+				fclose($fp);
+			}
+
 			$storage->track_file($this->destination_file);
 		}
 		catch (\phpbb\storage\exception\exception $e)