[Bug 2013545] [NEW] /usr/sbin/apt-add-repository will not function with IPv6 proxies called by address

Matt Clauson 2013545 at bugs.launchpad.net
Fri Mar 31 12:42:56 UTC 2023 

Public bug reported:

It appears that if one has an HTTP or HTTPS proxy called out
specifically by IPv6 address rather than hostname, it will fail.
Placing an entry in /etc/hosts, or the proxy into DNS (and calling by
hostname) will function.

failure steps:

1) set proxy environment variables
  export http_proxy="http://[2001:db8:f00::2]:3128/"
  export https_proxy="http://[2001:db8:f00::2]:3128/"

2) Attempt to add repository (in this case, a PPA):
  apt-add-repository ppa:ansible/ansible

3) Enjoy the resulting stack trace:
Traceback (most recent call last):
  File "/usr/bin/apt-add-repository", line 364, in <module>
    sys.exit(0 if addaptrepo.main() else 1)
  File "/usr/bin/apt-add-repository", line 347, in main
    shortcut = handler(source, **shortcut_params)
  File "/usr/lib/python3/dist-packages/softwareproperties/shortcuts.py", line 40, in shortcut_handler
    return handler(shortcut, **kwargs)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 82, in __init__
    if self.lpppa.publish_debug_symbols:
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 120, in lpppa
    self._lpppa = self.lpteam.getPPAByName(name=self.ppaname)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 107, in lpteam
    self._lpteam = self.lp.people(self.teamname)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 98, in lp
    self._lp = login_func("%s.%s" % (self.__module__, self.__class__.__name__),
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 494, in login_anonymously
    return cls(
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 230, in __init__
    super(Launchpad, self).__init__(
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py", line 472, in __init__
    self._wadl = self._browser.get_wadl_application(self._root_uri)
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 447, in get_wadl_application
    response, content = self._request(url, media_type=wadl_type)
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 389, in _request
    response, content = self._request_and_retry(
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 359, in _request_and_retry
    response, content = self._connection.request(
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1578, in request
    conn = self.connections[conn_key] = connection_type(
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1095, in __init__
    self.proxy_info = proxy_info("https")
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 926, in proxy_info_from_environment
    return proxy_info_from_url(url, method, noproxy=None)
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 950, in proxy_info_from_url
    port = int(port)
ValueError: invalid literal for int() with base 10: 'db8:f00::2]:3128'

Ubuntu Release:
# lsb_release -rd
Description:	Ubuntu 22.04.2 LTS
Release:	22.04

Package version:
# apt-cache policy software-properties-common
software-properties-common:
  Installed: 0.99.22.6
  Candidate: 0.99.22.6
  Version table:
 *** 0.99.22.6 500
        500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     0.99.22 500
        500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

** Affects: software-properties (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: ipv6 proxy

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https://bugs.launchpad.net/bugs/2013545

Title:
  /usr/sbin/apt-add-repository will not function with IPv6 proxies
  called by address

Status in software-properties package in Ubuntu:
  New

Bug description:
  It appears that if one has an HTTP or HTTPS proxy called out
  specifically by IPv6 address rather than hostname, it will fail.
  Placing an entry in /etc/hosts, or the proxy into DNS (and calling by
  hostname) will function.

  failure steps:

  1) set proxy environment variables
    export http_proxy="http://[2001:db8:f00::2]:3128/"
    export https_proxy="http://[2001:db8:f00::2]:3128/"

  2) Attempt to add repository (in this case, a PPA):
    apt-add-repository ppa:ansible/ansible

  3) Enjoy the resulting stack trace:
  Traceback (most recent call last):
    File "/usr/bin/apt-add-repository", line 364, in <module>
      sys.exit(0 if addaptrepo.main() else 1)
    File "/usr/bin/apt-add-repository", line 347, in main
      shortcut = handler(source, **shortcut_params)
    File "/usr/lib/python3/dist-packages/softwareproperties/shortcuts.py", line 40, in shortcut_handler
      return handler(shortcut, **kwargs)
    File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 82, in __init__
      if self.lpppa.publish_debug_symbols:
    File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 120, in lpppa
      self._lpppa = self.lpteam.getPPAByName(name=self.ppaname)
    File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 107, in lpteam
      self._lpteam = self.lp.people(self.teamname)
    File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 98, in lp
      self._lp = login_func("%s.%s" % (self.__module__, self.__class__.__name__),
    File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 494, in login_anonymously
      return cls(
    File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 230, in __init__
      super(Launchpad, self).__init__(
    File "/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py", line 472, in __init__
      self._wadl = self._browser.get_wadl_application(self._root_uri)
    File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 447, in get_wadl_application
      response, content = self._request(url, media_type=wadl_type)
    File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 389, in _request
      response, content = self._request_and_retry(
    File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 359, in _request_and_retry
      response, content = self._connection.request(
    File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1578, in request
      conn = self.connections[conn_key] = connection_type(
    File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1095, in __init__
      self.proxy_info = proxy_info("https")
    File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 926, in proxy_info_from_environment
      return proxy_info_from_url(url, method, noproxy=None)
    File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 950, in proxy_info_from_url
      port = int(port)
  ValueError: invalid literal for int() with base 10: 'db8:f00::2]:3128'

  Ubuntu Release:
  # lsb_release -rd
  Description:	Ubuntu 22.04.2 LTS
  Release:	22.04

  Package version:
  # apt-cache policy software-properties-common
  software-properties-common:
    Installed: 0.99.22.6
    Candidate: 0.99.22.6
    Version table:
   *** 0.99.22.6 500
          500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       0.99.22 500
          500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

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