guard against invoking a method of an undefined attribute, resulting in a memory puddle

5 years ago · af59f4c2c2
parent 294fb5acb5
commit af59f4c2c2
1 changed files with 3 additions and 1 deletions
--- a/storage/file.js
+++ b/storage/file.js
@ -102,7 +102,9 @@ var getMetadataAtPath = function (Env, path, _cb) {
 var closeChannel = function (env, channelName, cb) {
    if (!env.channels[channelName]) { return void cb(); }
    try {
-        env.channels[channelName].writeStream.close();
+        if (typeof(Util.find(env, [ 'channels', channelName, 'writeStream', 'close'])) === 'function') {
+            env.channels[channelName].writeStream.close();
+        }
        delete env.channels[channelName];
        env.openFiles--;
        cb();