From: cardoso_tiago@...
Date: 2017-10-14T23:15:28+00:00
Subject: [ruby-core:83285] [Ruby trunk Bug#14016] URI IPv6 address can't be	used to open socket

Issue #14016 has been updated by chucke (Tiago Cardoso).


Another notable inconsistency (when compared with the second example above):

```ruby
uri.host = "::1"  #=> URI::InvalidComponentError: bad component(expected host component): ::1
```

----------------------------------------
Bug #14016: URI IPv6 address can't be used to open socket
https://bugs.ruby-lang.org/issues/14016#change-67243

* Author: chucke (Tiago Cardoso)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.4.2
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
The example occurred when trying to use IPv6 to establish communication between HTTP client and server.

I first created an URI, passed it to Net::HTTP.get, and it blew with the following message:

```
SocketError: Failed to open TCP connection to [::1]:9292 (getaddrinfo: nodename nor servname provided, or not known)
```

It seems to me that the URI and the Socket classes don't play well with its expected representation of an IPv6 address:

```ruby
URI::HTTP.build(host: "[::1]").host #=> "[::1]"
URI::HTTP.build(host: "::1").host #=> ���[::1]���
TCPSocket.new("::1", 9292) #=> #<TCPSocket fd:15>
TCPSocket.new("[::1]", 9292) #=> #<TCPSocket fd:15>
 ```



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