From: anuraguniyal@...
Date: 2017-06-05T21:32:04+00:00
Subject: [ruby-core:81583] [Ruby trunk Bug#12642] Net::HTTP populates host header incorrectly when using an IPv6 Address

Issue #12642 has been updated by anuraguniyal (anurag uniyal).


Below monkey patching code works for me. Is there a better way?

~~~ ruby
module MonkeyPatch
  module Net
    module HTTP
    end
  end
end

module MonkeyPatch::Net::HTTP
  # workaround for https://bugs.ruby-lang.org/issues/12642
  # Ruby does not pass Host header with brackets if host is ipv6 address
  def addr_port
    addr = address()
    # if it is ipv6 add brackets around it
    if addr =~ Resolv::IPv6::Regex
      addr = "[#{addr}]"
    end
    if use_ssl?
      addr + (port == Net::HTTP.https_default_port ? '' : ":#{port()}")
    else
      addr + (port == Net::HTTP.http_default_port ? '' : ":#{port()}")
    end
  end
end

Net::HTTP.prepend(MonkeyPatch::Net::HTTP)
~~~


----------------------------------------
Bug #12642: Net::HTTP populates host header incorrectly when using an IPv6 Address
https://bugs.ruby-lang.org/issues/12642#change-65287

* Author: dcorbin (David Corbin)
* Status: Assigned
* Priority: Normal
* Assignee: naruse (Yui NARUSE)
* Target version: 
* ruby -v: 
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
When sending a request, the client code adds a "Host" header.  It does the by taking the given address, appending a colon, and then appending the port.  This creates a fragment of a URL such as "google.com:80".  However, when instead of "google.com", the address is an IPv6 address is given (such as 8383:3223::1333:DE12), simply appending a colon is not adequate.   It yields 8383:3223::1333:DE12:80, which is hard to parse mess. 

RFC3986 stipulates that the host should be surrounded by square brackets, which would have the Host header as: [8383:3223::1333:DE12]:80.

---Files--------------------------------
ipv6_test.rb (1.17 KB)


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