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It is perfectly valid behavior for a server to respond with
Connection: close eventually, even when pipelining. Turning
off pipelining due to that is wrong. For example, some Ubuntu
mirrors close the connection after 101 requests. If I have
more packages to install, only the first 101 would benefit
from pipelining.
This commit introduces a new check to only turn of pipelining
for future connections if the pipeline for this connection did
not have 3 successful fetches before, that should work quite well to
detect broken server/proxy combinations like in bug 832113.
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The Fail method for acquire methods has a boolean parameter indicating
the transient-nature of a reported error. The problem with this is that
Fail is called very late at a point where it is no longer easily
identifiable if an error is indeed transient or not, so some calls were
and some weren't and the acquire system would later mostly ignore the
transient flag and guess by using the FailReason instead.
Introducing a tri-state enum we can pass the information about fatal or
transient errors through the callstack to generate the correct fails.
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Opening the file before we drop privileges in the methods allows us to
avoid chowning in the acquire main process which can apply to the wrong
file (imagine Binary scoped settings) and surprises users as their
permission setup is overridden.
There are no security benefits as the file is open, so an evil method
could as before read the contents of the file, but it isn't worse than
before and we avoid permission problems in this setup.
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We have support for an netrc-like auth.conf file since 0.7.25 (closing
518473), but it was never documented in apt that it even exists and
netrc seems to have fallen out of usage as a manpage for it no longer
exists making the feature even more arcane.
On top of that the code was a bit of a mess (as it is written in c-style)
and as a result the matching of machine tokens to URIs also a bit
strange by checking for less specific matches (= without path) first.
We now do a single pass over the stanzas.
In practice early adopters of the undocumented implementation will not
really notice the differences and the 'new' behaviour is simpler to
document and more usual for an apt user.
Closes: #811181
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This makes it easier to see which headers includes what.
The changes were done by running
git grep -l '#\s*include' \
| grep -E '.(cc|h)$' \
| xargs sed -i -E 's/(^\s*)#(\s*)include/\1#\2 include/'
To modify all include lines by adding a space, and then running
./git-clang-format.sh.
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This 'method' is the abstract base for http and https and should as such
be called out like this rather using an easily confused name.
Gbp-Dch: Ignore
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