From: shugo@...
Date: 2015-07-30T14:33:09+00:00
Subject: [ruby-core:70191] [Ruby trunk - Bug #11407] [Feedback] Net::FTP nlst method return wrong data and don't raise Error when path is wrong

Issue #11407 has been updated by Shugo Maeda.

Status changed from Open to Feedback

Damian Giebas wrote:
> I found bug in nlst function. When we have situatiuon on ftp like this
> 
> /
>   my_folder/
>     some_file.txt
>   some_another_file.txt
> 
> and we go to "my_folder"
> 
> ftp_handler.chdir("my_folder")
> and use nlst from this folder on file "some_another_file.txt"
> 
> ftp_handler.nlst("../some_another_file.txt") it return
> 
> ['../some_another_file.txt/some_another_file.txt']
> 
> I think this is bug. In this case function should return ['../some_another_file.txt']

I couldn't reproduce the problem....

```ruby
require "net/ftp"

ftp = Net::FTP.new("ftp.ruby-lang.org")
ftp.passive = true
ftp.login
ftp.chdir("pub/ruby/2.2")
p ftp.nlst("..")
p ftp.nlst("../ruby-2.2.2.zip") #=> ["../ruby-2.2.2.zip"]
```

Does the nlist command of /usr/bin/ftp works well with that server?


----------------------------------------
Bug #11407: Net::FTP nlst method return wrong data and don't raise Error when path is wrong
https://bugs.ruby-lang.org/issues/11407#change-53618

* Author: Damian Giebas
* Status: Feedback
* Priority: Normal
* Assignee: Shugo Maeda
* ruby -v: 2.3.0
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
I found bug in nlst function. When we have situatiuon on ftp like this

/
  my_folder/
    some_file.txt
  some_another_file.txt

and we go to "my_folder"

ftp_handler.chdir("my_folder")
and use nlst from this folder on file "some_another_file.txt"

ftp_handler.nlst("../some_another_file.txt") it return

['../some_another_file.txt/some_another_file.txt']

I think this is bug. In this case function should return ['../some_another_file.txt']

It still "working" when my path is worong. When I'm still in "my_folder" and I use nlst with weird path

ftp_handler.nlst("../../../../../../some_another_file.txt")

it return ["../../../../../../some_another_file.txt/some_another_file.txt"]. I think it should raise FTPPermError with code 550. This path does not exist.

I found this bug in ruby version 1.9.3 and it still exist in ruby 2.3.0dev.

Can someone confirm me this is bug?

Best regards.

---Files--------------------------------
net_ftp_bug.png (141 KB)


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