** Description changed:
- In connection with the recent update-notifier changes
- (https://wiki.ubuntu.com/Specs/UpdateNotifierPackageDataDownloader),
- some users who were previously able to download the flashplugin via the
- apt proxy settings are now unable to download it when running, e.g.,
- 'sudo apt-get install'.
+ [Impact]
+ In connection with the recent update-notifier changes
(https://wiki.ubuntu.com/Specs/UpdateNotifierPackageDataDownloader), some users
who were previously able to download the flashplugin via the apt proxy settings
are now unable to download it when running, e.g., 'sudo apt-get install'.
The reason for this is that, even though a global proxy may be
configured in /etc/environment, sudo does not allow $http_proxy to be
inherited by default and does not reapply the environment from
/etc/environment (and from /etc/default/locale) via pam_env.
The first part is reasonable, but I question the second part. Since
these are global config files, I believe it's safe for sudo to apply the
environment settings by default just as 'su' does; and the settings are
intended to apply globally, which would include to sudo sessions.
This would make update-notifier work more reliably for users with
proxies, and would probably help with a variety of other cases where
global variables are currently not being set as expected for sudo.
+ [Test Case]
+ 1. Set 'http_proxy=invalid' in /etc/environment
+ 2. Run 'sudo wget http://www.ubuntu.com/', 'pkexec wget
http://www.ubuntu.com/'
+ 3. Verify that the commands return successfully
+ 4. Install updated sudo, policykit-1 packages from precise-proposed
+ 5. Repeat the commands from step 2
+ 6. Verify that the commands now fail with an error about invalid proxies
+ 7. Remove the http_proxy line from /etc/environment
+
+ [Regression potential]
+ Some users may consider it a feature that global settings from
/etc/environment are not applied to sudo and/or pkexec. However, this is not
by design; the cost of not being able to correctly support proxies for users is
greater than the cost of changing this behavior in an SRU and breaking
expectations of users regarding undocumented behavior.
+
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: sudo 1.8.3p1-1ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
ApportVersion: 2.0.1-0ubuntu3
Architecture: amd64
CheckboxSubmission: 017452a27eca3c8b498abbfa5ef91db9
CheckboxSystem: ecaaad6fa1e0799a0aa1126bf620f39e
Date: Sun Apr 15 16:41:17 2012
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64
(20100816.1)
ProcEnviron:
- TERM=xterm
- PATH=(custom, user)
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=xterm
+ PATH=(custom, user)
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
SourcePackage: sudo
UpgradeStatus: Upgraded to precise on 2011-11-08 (159 days ago)
** Changed in: policykit-1 (Ubuntu Precise)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/982684
Title:
sudo, pkexec don't apply global environment settings from
/etc/environment
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