Issue #13171 has been updated by Yui NARUSE.


Eric Barendt wrote:
> I disagree that it's correct. But it's also inconsistent with HTTP. Further, where does the "/" come from anyway?

> ~~~ ruby
> >> URI.parse("http://example.com").path
> => ""
> >> URI.parse("ftp://example.com").path
> => ""
> ~~~

About instance variables, 

```ruby
irb(main):005:0> URI.parse("ftp://example.com").instance_variable_get(:@path)
=> "/"
irb(main):006:0> URI.parse("http://example.com").instance_variable_get(:@path)
=> ""
```

Maybe they should be
* @path should be "" or nil
* uri.path should be '/'
* uri.to_s should be without trailing '/'

Though such inconsistency can be acceptable because the semantics of path is much different between HTTP and FTP.

----------------------------------------
Bug #13171: URI::FTP path has a trailing slash when just hostname and scheme provided
https://bugs.ruby-lang.org/issues/13171#change-62802

* Author: Milo Price
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
As with HTTP uris, the trailing slash on a FTP uri should be optional, per RFC 1738 (ftp://ftp.funet.fi/pub/doc/rfc/rfc1738.txt). However, under the current implementation, URI::FTP#to_s always has a trailing slash when only a hostname is provided (i.e., no path):

~~~ ruby
URI.parse("http://example.com").to_s
=> "http://example.com"
URI.parse("ftp://example.com").to_s
=> "ftp://example.com/"
~~~








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