[Bug 1821034] Re: release-upgrade-motd can't update message

[Brian Murray]

While you've identified a legitimate bug, the lack of https support, in
url_downloadable that function isn't actually used to get the meta-
release file. (Wacky I know!) This can be seen by reading
UpdateManager/Core/MetaRelease.py's download function.

Please try running do-release-upgrade with the DEBUG_UPDATE_MANAGER
environmental variable set e.g. DEBUG_UPDATE_MANAGER=1 do-release-
upgrade -c.

Thanks again for your help!

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https://bugs.launchpad.net/bugs/1821034

Title:
  release-upgrade-motd can't update message

Status in update-manager package in Ubuntu:
  Incomplete

Bug description:
  This is a similar bug to the one regarding using a proxy, but I'm NOT
  using a proxy.

  $ lsb_release -rd
  Description:	Ubuntu 18.04.2 LTS
  Release:	18.04

  $ do-release-upgrade -c
  Checking for a new Ubuntu release
  Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings

  And yet:

  $ curl https://changelogs.ubuntu.com/meta-release-lts
  Dist: dapper
  Name: Dapper Drake
  Version: 6.06 LTS
  .
  .
  .
  Dist: bionic
  Name: Bionic Beaver
  Version: 18.04.2 LTS
  Date: Thu, 26 April 2018 18:04:00 UTC
  Supported: 1
  Description: This is the 18.04.2 LTS release
  ...

  
  A thing I note: python3-update-manager (Version: 1:18.04.11.9) utils.py url_downloadable doesn't seem to know about https.

  >>> import UpdateManager.Core.utils as umut
  >>> umut.url_downloadable("https://changelogs.ubuntu.com/meta-release-lts", lambda x: print(x))
  url_downloadable: https://changelogs.ubuntu.com/meta-release-lts
  s='https' n='changelogs.ubuntu.com' p='/meta-release-lts' q='' f=''
  False

  
  If I change the line to """ if scheme == "http" or scheme == "https" """:

  >>> import UpdateManager.Core.utils as umut
  >>> umut.url_downloadable("https://changelogs.ubuntu.com/meta-release-lts", lambda x: print(x))
  url_downloadable: https://changelogs.ubuntu.com/meta-release-lts
  s='https' n='changelogs.ubuntu.com' p='/meta-release-lts' q='' f=''
  error from httplib: '<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:847)>'
  False

  
  Dunno if that's helpful at all, but there it is.

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