[Bug 820383] Re: package-data-downloader fails if apt is configured to use an http proxy that only supports package downloading

[Josep Pujadas-Jubany]

/usr/lib/update-notifier/package-data-downloader from update-notifier
uses python urllib

It seems to be problems when using proxies. In addition, urllib doesn't
supports https protocol.

https://docs.python.org/2/library/urllib.html#urllib-restrictions

Using a http proxy, adobe-flashplugin updates will work but not allways:

urllib.urlretrieve("http://archive.canonical.com/pool/partner/a/adobe-
flashplugin/adobe-flashplugin_11.2.202.425.orig.tar.gz", "adobe-
flashplugin.tar.gz")

Using a https proxy, pepflashpluguin updates will never work:

urllib.urlretrieve("https://dl-
ssl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-
chrome-stable_39.0.2171.95-1_i386.deb", "google-chrome.deb")

So, scripts must be something like:

export http_proxy=http://192.168.0.1:3128
export https_proxy=https://192.168.0.1:3128
apt-get install -y flashplugin-installer
apt-get install -y pepflashplugin-installer
echo "" >> /etc/chromium-browser/default
echo ". /usr/lib/pepflashplugin-installer/pepflashplayer.sh" >> /etc/chromium-browser/default
echo "" >> /etc/chromium-browser/default
unset http_proxy
unset https_proxy
apt-get --reinstall install -y flashplugin-installer
apt-get --reinstall install -y pepflashplugin-installer

Of course, if yo do this, your corporative firewall/proxy must allow
direct connections to archive.canonical.com (http) and dl-ssl.google.com
(https).

In my opinion, update-notifier (and other applications using urllib)
should avoid python urllib

There are many bugs related (in fact, they are duplicated):

https://bugs.launchpad.net/ubuntu/+source/anacron/+bug/1209146
https://bugs.launchpad.net/ubuntu/+source/flashplugin-nonfree/+bug/1098233
https://bugs.launchpad.net/ubuntu/+source/flashplugin-nonfree/+bug/1037662
https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1005837
https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/983559
https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/820383
https://bugs.launchpad.net/zc.buildout/+bug/484735

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https://bugs.launchpad.net/bugs/820383

Title:
  package-data-downloader fails if apt is configured to use an http
  proxy that only supports package downloading

Status in update-notifier package in Ubuntu:
  Triaged

Bug description:
  Description:	Ubuntu oneiric (development branch)
  Release:	11.10

  ttf-mscorefonts-installer:
    Installato: 3.3ubuntu3
    Candidato:  3.3ubuntu3
    Tabella versione:
   *** 3.3ubuntu3 0
          500 http://archive.ubuntu.com/ubuntu/ oneiric/multiverse i386 Packages
          100 /var/lib/dpkg/status

  I have ONLY an apt-proxy defined here

  cat /etc/apt/apt.conf.d/proxy
  Acquire::http::proxy "http://192.168.100.58:3142/";

  i must temporary move the /etc/apt/apt.conf.d/proxy then do a

  sudo dpkg-reconfigure ttf-mscorefonts-installer

  to get the font installer ignore the DEB proxy... and can get the
  fonts via web...

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ttf-mscorefonts-installer 3.3ubuntu3
  ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
  Uname: Linux 3.0.0-7-generic i686
  Architecture: i386
  Date: Wed Aug  3 11:06:15 2011
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=it_IT:en
   PATH=(custom, user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  SourcePackage: msttcorefonts
  UpgradeStatus: Upgraded to oneiric on 2011-06-07 (56 days ago)

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