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Using a different user for calling methods is intended to protect us
from methods running amok (via remotely exploited bugs) by limiting what
can be done by them. By using root:root for the final directories and
just have the files in partial writeable by the methods we enhance this
in sofar as a method can't modify already verified data in its parent
directory anymore.
As a side effect, this also clears most of the problems you could have
if the final directories are shared without user-sharing or if these
directories disappear as they are now again root owned and only the
partial directories contain _apt owned files (usually none if apt isn't
running) and the directory itself is autocreated with the right
permissions.
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Reworks the API involved in creating and setting up the fetcher to be a
bit more pleasent to look at and work with as e.g. an empty string for
no lock isn't very nice. With the lock we can also stop creating all our
partial directories "just in case". This way we can also be a bit more
aggressive with the partial directory itself as with a lock, we know we
will gone need it.
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Move common code out but do not use subclassing for ::Done
to make it easier to understand what each class is doing when
its done
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The configuration key Acquire::AllowInsecureRepositories controls if
apt allows loading of unsigned repositories at all.
The configuration Acquire::AllowDowngradeToInsecureRepositories
controls if a signed repository can ever become unsigned. This
should really never be needed but we provide it to avoid having
to mess around in /var/lib/apt/lists if there is a use-case for
this (which I can't think of right now).
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This prevents a failure in mktemp -d - it will blindly trust
TMPDIR and not use something else if the dir is not there.
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feature/acq-trans
Conflicts:
apt-pkg/acquire-item.cc
apt-pkg/acquire-item.h
methods/gpgv.cc
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Conflicts:
apt-pkg/acquire-item.cc
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Not really the intended usecase for apt-get clean, but users expect it
to help them in recovery and it can't really hurt as this directory
should be empty if everything was fine and proper anyway.
Closes: #762889
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apt-get download and changelog as well as apt-helper reuse the acquire
system for their own proposes without requiring the directories the
fetcher wants to create, which is a problem if you run them as non-root
and the directories do not exist as it greets you with:
E: Archives directory /var/cache/apt/archives/partial is missing. -
Acquire (13: Permission denied)
Closes: 762898
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apt can work with both, so it has an or-dependency on them,
but the tests want to play with both of them.
Git-Dch: Ignore
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The original patch does not apply against the rewritten apt-key,
but an additional test doesn't hurt.
Closes: 754436
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Some advanced commands can be executed without the keyring being
modified like --verify, so this adds an option to disable the mergeback
and uses it for our gpg calling code.
Git-Dch: Ignore
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We were down to at most two keyrings before, but gnupg upstream plans
dropping support for multiple keyrings in the longrun, so with a
single keyring we hope to be future proof – and 'apt-key adv' isn't a
problem anymore as every change to the keys is merged back, so we have
now the same behavior as before, but support an unlimited amount of
trusted.gpg.d keyrings.
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For some advanced usecases it might be handy to specify the secret
keyring to be used (e.g. as it is used in the testcases), but specifying
it via a normal option for gnupg might not be available forever:
http://lists.gnupg.org/pipermail/gnupg-users/2013-August/047180.html
Git-Dch: Ignore
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Git-Dch: Ignore
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beside testing apt-key a bit it also avoids duplicating gpghome setup
code in apt-key and the test framework
Git-Dch: Ignore
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If both are available APT will still prefer gpg over gpg2 as it is a bit
more lightweight, but it shouldn't be a problem to use one or the other
(at least at the moment, who knows what will happen in the future).
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apt-key does the keyring merge as we need it, so we just call it instead
of reimplementing it to do the merging before gpgv. This means we don't
use gpgv anymore (we never depended on it explicitly - bad style), but
it also means that the message in apt-cdrom add is a bit less friendly
as it says loudly "untrusted key", but for a one-time command its okay.
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Previously, we had a start and a done of the calculation printed by
higher-level code, but this got intermixed by progress reporting from an
external solver or the output of autoremove code…
The higherlevel code is now only responsible for instantiating a
progress object of its choosing (if it wants progress after all) and the
rest will be handled by the upgrade code. Either it is used to show the
progress of the external solver or the internal solver will give some
hints about its overall progress. The later isn't really a proper
progress as it will jump forward after each substep, but that is at
least a bit better than before without any progress indication.
Fixes also the 'strange' non-display of this progress line in -q=1, while
all others are shown, which is reflected by all testcase changes.
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Also rework the way we load the Release file, so it only after
Release.gpg verified the Release file. The rational is that we
never want to load untrusted data into our parsers. Only stuff
verified with gpg or by its hashes get loaded. To load untrusted
data you now need to use apt-get update --allow-unauthenticated.
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Git-Dch: Ignore
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feature/acq-trans
Conflicts:
apt-pkg/acquire-item.cc
apt-pkg/acquire-item.h
methods/copy.cc
test/integration/test-hashsum-verification
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Conflicts:
apt-pkg/acquire-item.cc
apt-pkg/acquire-item.h
apt-pkg/cachefilter.h
configure.ac
debian/changelog
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Git-Dch: Ignore
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When we do a ReverifyAfterIMS() we use the copy: method to
verify the hashes again. If the user uses -o Dir=./something/relative
this fails because we use the URI class in copy.cc that strips
away the leading relative part. By not using URI this is fixed.
Closes: #762160
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Do not run ReverifyAfterIMS() for local file URIs as this will
causes apt to mess around in the file:/// uri space. This is
wrong in itself, but it will also cause a incorrect verification
failure when the archive and the lists directory are on different
partitions as rename().
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incorrect invalidating of unauthenticated data (CVE-2014-0488)
incorect verification of 304 reply (CVE-2014-0487)
incorrect verification of Acquire::Gzip indexes (CVE-2014-0489)
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Most pagers are nice and default to running non-interactively if they
aren't connected to a terminal and we relied on that. On ci.debian.net
the configured pager is printing a header out of nowhere though, so if
we are printing to a non-terminal we call "cat" instead.
In the rework we also "remove" the dependency on sensible-utils in sofar
as we call some alternatives if calling the utils fail.
This seems to be the last problem preventing a "PASS" status on
ci.debian.net, so we close the associated bugreport.
Closes: 755040
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