Find a solution for bundled cryptography pkg that works for Ubuntu 14.04 (Trusty)

Observed behavior

I’m not able to import channel from browser or command line. When importing from browser, it shows that transfer failed.

Expected behavior

Importing channels successfully.

User-facing consequences

Users will not able to import a channel when their Python version is not the latest (or probably some other reasons that cause this problem).

Errors and logs

Relevant errors and tracebacks from:

• the command line

WARNING:py.warnings:/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
  SNIMissingWarning

WARNING:py.warnings:/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

Traceback (most recent call last):
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 365, in execute
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 293, in _wrap_coverage
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 325, in _wrap_profiling
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 408, in _execute
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 466, in execute_entry
  File "/home/osboxes/share/kolibri-0.7.dev020171030053720-git.pex/.bootstrap/_pex/pex.py", line 471, in execute_module
  File "/usr/lib/python2.7/runpy.py", line 180, in run_module
    fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/__main__.py", line 8, in <module>
    main(args=sys.argv[1:])
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/utils/cli.py", line 629, in main
    manage(command, args=django_args)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/utils/cli.py", line 460, in manage
    execute_from_command_line(argv=argv)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/django/core/management/__init__.py", line 345, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/django/core/management/base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/django/core/management/base.py", line 399, in execute
    output = self.handle(*args, **options)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/tasks/management/commands/base.py", line 99, in handle
    return self.handle_async(*args, **options)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/content/management/commands/importchannel.py", line 89, in handle_async
    self.download_channel(options["channel_id"])
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/content/management/commands/importchannel.py", line 42, in download_channel
    self._transfer(DOWNLOAD_METHOD, channel_id)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/content/management/commands/importchannel.py", line 67, in _transfer
    with filetransfer:
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/content/utils/transfer.py", line 98, in __enter__
    self.start()
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/content/utils/transfer.py", line 153, in start
    self.source, stream=True, timeout=self.timeout)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/sessions.py", line 487, in get
    return self.request('GET', url, **kwargs)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/sessions.py", line 475, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/sessions.py", line 606, in send
    history = [resp for resp in gen] if allow_redirects else []
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/sessions.py", line 179, in resolve_redirects
    **adapter_kwargs
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/sessions.py", line 585, in send
    r = adapter.send(request, **kwargs)
  File "/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/adapters.py", line 477, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: [Errno 1] _ssl.c:510: error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure

• ~/.kolibri/kolibri.log

No errors shown here.

• the browser console

  Same as above

server logs

 WARNING:py.warnings:/home/osboxes/.pex/install/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl.f6b31bfd2a0b1e7de7753e26a8255f5d5f146d78/kolibri-0.7.dev020171030053720_git-py2.py3-none-any.whl/kolibri/dist/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

Steps to reproduce

1. Set up a Ubuntu 14.04 32-bit VM with python 2.7.6 installed (this python version comes with the VM)
2. Use the latest 0.7 pex to start the server
3. From command line or browser, try to import a channel

Context

• Kolibri version: 0.7
• Operating system: Ubuntu 14.04
• Browser: Firefox

[benjaoming]

Also we don’t seem to support Trusty anymore really? I know that it isn’t stated in the latest docs, it was intentionally removed after Trusty reached end of life 9 days ago.

Trusty is still the default VM on Travis CI, so in reality, we might keep supporting it for a bit 😃

[indirectlylit]

thank you!