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This commit moves the creation of the fetcher and with it the
calculation of the filenames before the code generation the various
lists detailing the solution. This means that simulation comes even so
slightly closer to a real run as it will require and parse the package
indexes for filenames and queuing of URIs, so that a simulation "using"
an unavailable download method actually fails now.
The real benefit of this change is through that the rather special but
nontheless handy --no-download --fix-missing mode now actually shows
what the solution is it will apply to the system rather than the
solution it would if it could download all not-downloaded packages.
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Errors cause a kind of automatic no already, but warnings and notices
are only displayed at the end of the apt execution even through they
could effect the choice of saying yes/no to questions: E.g. if a
configuration (file) was ignored you wanted to have an effect or if an
external solver you used generated warnings suggesting that the solution
might be valid, but bogus non-the-less and similar things.
Note that this only moves those messages up to the question if the
answer is interactive – not if e.g. -y is used or no question is asked at
all so this has an effect only on interactive usage of apt(-get), not
script who might be parsing apt output.
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This fixes comparisons where either the stored or the input string
have a trailing comma.
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Unexpected are for examples removal requests for versions which aren't
installed, installations of already installed versions & requests to
install and remove a package at the same time.
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Failures can happen and APT regardless will do a partial cache
update anyway. Because APT ensures that the list directory is
in a sane state, it makes sense to also call success hooks if
success was only partial - otherwise it loses sync with APT.
Most importantly, this causes the appstream cache to be empty,
see launchpad bug #1562733.
This is somewhat overly optimistic though: As soon as any repository
has nonexisting optional files, the missing optional files are also
treated as success, which means a single broken repository without an
InRelease file still runs Success hooks, even though it really should
not.
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This prevented some sources.list entries from working, an example
of which can be found in the test.
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Versions which are only available in dpkg/status aren't installable and
apt doesn't pick them as candidate for this reason – for the same reason
such packages shouldn't be sent to an external solver via EDSP. The
packages are pinned to -1, but if the solver has strict pinning disabled
it could end up picking this version anyhow – which is a request apt can
not satisfy.
Reported-By: Maximiliano Curia <maxy@debian.org> on IRC
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gpg doesn't give use a UID on NODATA, which we were "expecting" (but not
using for anything), but just an error number. Instead of collecting
these as badsigners which will trigger a "invald signature" error with
remarks like "NODATA 1" we instead adapt a message similar to the NODATA
error of a clearsigned file (which is actually not reached anymore as we
split them up, which fails with a NOSPLIT error, which uses the same
general error message).
In other words: Not a security relevant change, just a user experience
improvement as we now point them to the most likely cause of the
problem instead of saying "invalid signature" which would point them in
the direction of the archive being broken (for everyone) instead.
Closes: 823746
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A frontend like apt-file is only interested in a specific set of files
and selects those easily via "Created-By". If it supports two locations
for those files through it would need to select both and a user would
need to know that implementation detail for sources.list configuration.
The "Identifier" field is hence introduced which by default has the same
value as "Created-By", but can be freely configured – especially it can
be used to give two indexes the same identifier.
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Sometimes index files are in different locations in a repository as it
is currently the case for Contents files which are per-component in
Debian, but aren't in Ubuntu. This has historic reasons and is perhaps
changed soon, but such cases of transitions can always happen in the
future again, so we should prepare:
Introduced is a new field declaring that the current item should only be
downloaded if the mentioned item wasn't allowing for transitions without
a flagday in clients and archives.
This isn't implemented 'simpler' with multiple MetaKeys as items (could)
change their descriptions and perhaps also other configuration bits with
their location.
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It looks a bit strange on the outside to have multiple "native
architecture", but all is considered an implementation detail and e.g.
packages of arch:all are in dependency resolution equal to native
packages.
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Commit 9b8034a9fd40b4d05075fda719e61f6eb4c45678 just deals with
InRelease properly and generates broken URIs in case the mirror (or the
achieve really) has no InRelease file.
[As this was in no released version no need to clutter changelog with a
fix notice.]
Git-Dch: Ignore
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Most tests just need a signed repository and don't care if it signed by
an InRelease file or a Release.gpg file, so we can save some time by
just generating one of them by default.
Sounds like not much, but quickly adds up to a few seconds with the
amount of tests we have accumulated by now.
Git-Dch: Ignore
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If the test just signs release files to throw away one of them to test
the other, we can just as well save the time and not create it.
Git-Dch: Ignore
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Always those silly mistakes. Do what I mean, not what I said…
Reported-By: Travis
Git-Dch: Ignore
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Broken in a4b8112b19763cbd2c12b81d55bc7d43a591d610.
If an item has a description which includes no space and is redirected
to another mirror the code which wants to rewrite the description
expects a space in there, but can't find it and the unguarded substr
command on the string will fail with an exception thrown…
Guarding it properly and everything is fine.
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We want to stop hard-depending on gnupg and for this it is essential
that apt-key isn't used in any critical execution path, which
maintainerscript are. Especially as it is likely that these script call
apt-key either only for (potentially now outdated cleanup) or still not
use the much simpler trusted.gpg.d infrastructure.
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Users have the option since apt >= 1.1 to enforce that a Release file is
signed with specific key(s) either via keyring filename or fingerprints.
This commit adds an entry with the same name and value (except that it
doesn't accept filenames for obvious reasons) to the Release file so
that the repository owner can set a default value for this setting
effecting the *next* Release file, not the current one, which provides a
functionality similar "HTTP Public Key Pinning". The pinning is in
effect as long as the (then old) Release file is considered valid, but
it is also ignored if the Release file has no Valid-Until at all.
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A keyring file can include multiple keys, so its only fair for
transitions and such to support multiple fingerprints as well.
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We parse the messages we receive into two big categories: Most of the
messages have a keyid as well as a userid and as they are errors we want
to show the userids as well. The other category is also errors, but have
no userid (like NO_PUBKEY). Explicitly expressing this in code should
make it a bit easier to look at and it also help in dropping additional
fields or just the newline at the end consistently.
Git-Dch: Ignore
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Daniel Kahn Gillmor highlights in the bugreport that security isn't
improving by having the user import additional keys – especially as
importing keys securely is hard.
The bugreport was initially about dropping the warning to a notice, but
in given the previously mentioned observation and the fact that we
weren't printing a warning (or a notice) for expired or revoked keys
providing a signature we drop it completely as the code to display a
message if this was the only key is in another path – and is considered
critical.
Closes: 618445
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Signatures on data can have an expiration date, too, which we hadn't
handled previously explicitly (no problem – gpg still has a non-zero
exit code so apt notices the invalid signature) so the error message
wasn't as helpful as it could be (aka mentioning the key signing it).
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The upstream documentation says about KEYEXPIRED:
"This status line is not very useful". Indeed, it doesn't mention which
key is expired, and suggests to use the other message which does.
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This basically introduces ~33 flags in the output, but a package can
have only ~11 of them displayed at the same time. There is quiet a bit
of duplication also (an uninstalled package is by definition a
newinstall if its getting installed), but as this is debug output we are
better of showing them all in case one of them isn't set in a way it is
supposed to be set.
Git-Dch: Ignore
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Redesign of multivalue options in 463c8d801595ce5ac94d7c032264820be7434232
caused the parser to look for <multivalue>{Add,Remove} (no hyphen)
instead of the expected <multivalue>-{Add,Remove}.
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Using Pkg.CandVersion() here is wrong as its implementation will return
a candidate based just on the default policy settings ignoring user
preferences and otherwise set candidates (aka: it sidesteps the
pkgDepCache).
This causes M-A:same libraries to be detected as screwed even through
they aren't, so that they end up being kept back.
Reported-By: Felipe Sateler on IRC
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Broken in the previous commit (69cea1ef2cfda3c4da79fd756a8edaf2be26998e).
Adding a test and a comment to avoid future embarrassment.
Git-Dch: Ignore
Reported-By: Julian Andres Klode on IRC
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Redirection services like httpredir.debian.org tend to use a set of
mirrors from which they pick a mirror at "random" for each requested
file, which is usually benefitial for the download of debs, but for the
index files this can quickly cause problems (aka hashsum mismatches) if
the two (or more) mirrors involved are only slightly out-of-sync.
This commit "resolves" this issue by using the mirror we ended up using
to get the (signed) Release file directly to get the index files
belonging to this Release file instead of asking the redirection
service which eliminates the risk of hitting out-of-sync mirrors.
As an obvious downside the redirection service can't serve partial
mirrors anymore for indexes and the download of indexes indexed in the
same Release file can't be done in parallel (from different mirrors).
This does not effect the download of non-index files like deb-files as
out-of-sync mirrors aren't a huge problem there, so the parallel
download outweights a potentially 404 error (also because this causes no
errenous downloads while hashsum mismatches download the entire file
before finding out that it was pointless).
The rational for this is that indexes are relative to the Release file.
If we would be talking about a HTML page including images, such a
behaviour is obvious and intended – not doing it means in the best case
a bunch of "useless" requests which will all be answered with a
redirect.
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They are the small brothers of the hashsum mismatch, so they deserve a
similar treatment even through we have for architectual reasons not a
much to display as for hashsum mismatches for now.
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Users tend to report these errors with just this error message… not very
actionable and hard to figure out if this is a temporary or 'permanent'
mirror-sync issue or even the occasional apt bug.
Showing the involved hashsums and modification times should help in
triaging these kind of bugs – and eventually we will have less of them
via by-hash.
The subheaders aren't marked for translation for now as they are
technical glibberish and probably easier to deal with if not translated.
After all, our iconic "Hash Sum mismatch" is translated at least.
These additions were proposed in #817240 by Peter Palfrader.
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This is a duplicate of sorts of 0efb29eb36184bbe6de7b1013d1898796d94b171
which is the a lot more frequent case of this error – and also a
duplicate of this error message, just without the \n at the end.
Git-Dch: Ignore
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We have this situation in cases were parts of the transaction are
refused (e.g. in a hashsum mismatch) and rerun the update (e.g. in the
hope that we get a mirror which is synced this time).
Previously we would ask the server with an if-range and in the best case
recieve a 416 in response (less featureful server might end up giving us
the entire file again or we get the wrong file this time giving us a
hashsum mismatch…), which is a waste of time if we know already by
checking the hashsums that we got the complete and correct file.
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Queues feeding workers like rred are created in a random pattern to get
a few of them to run in parallel – but if we already have an idling queue
we don't need to assign it to a (potentially new) random queue as that
saves us the (agruably small) overhead of starting up a new queue,
avoids adding jobs to an already busy queue while others idle and as
a bonus reduces the size of debug logs a bit.
We also keep starting new queues now until we reach our limit before
we assign work at random to them, which should give us a more effective
utilisation overall compared to potentially adding work to busy queues
while we haven't reached our queue limit yet.
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Tested via (newly) empty index files, but effects also files dropped
from the repository or an otherwise changed repository config.
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There is just no point in taking the time to acquire empty files –
especially as it will be tiny non-empty compressed files usually.
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With the previous fix for file applied we can again hit repositories
which contain uncompressed empty files, which since the introduction of
the central store: method wasn't accounted for anymore as we forbid
empty compressed files.
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A silly of-by-one error in the stripping of the extension to check for
the uncompressed filename broken in an attempt to support all
compressions in commit a09f6eb8fc67cd2d836019f448f18580396185e5.
Fixing this highlights also mistakes in the handling of the Alt-Filename
in libapt which would cause apt to remove the file from the repository
(if root has the needed rights – aka the disk isn't readonly or similar)
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Breaking here lets our handler die which a client will fix by
reconnecting… but that eats time needlessly and is simple the wrong
handling, too.
Git-Dch: Ignore
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With the previous commit we track the state of transactions, so we can
now use our knowledge to avoid processing data for a transaction which
was already closed (via an abort in this case).
This is needed as multiple independent processes are interacting in the
process, so there isn't a simple immediate full-engine stop and it would
also be bad to teach each and every item how to check if its manager
has failed subordinate and what to do in that case.
In the pdiff case, which deals (potentially) with many items during its
lifetime e.g. a hashsum mismatch in another file can abort the
transaction the file we try to patch via pdiff belongs to. This causes
some of the items (which are already done) to be aborted with it, but
items still in the process of acquisition continue in the processing and
will later try to use all the items together failing in strange ways as
cleanup already happened.
The chosen solution is to dry up the communication channels instead by
ignoring new requests for data acquisition, canceling requests which are
not assigned to a queue and not calling Done/Failed on items anymore.
This means that e.g. already started or pending (e.g. pipelined)
downloads aren't stopped and continue as normal for now, but they remain
in partial/ and aren't processed further so the next update command will
pick them up and put them to good use while the current process fails
updating (for this transaction group) in an orderly fashion.
Closes: 817240
Thanks: Barr Detwix & Vincent Lefevre for log files
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Introduces APT::Hashes::<NAME> with entries Untrusted and Weak
which can be set to true to cause the hash to be treated as
untrusted and/or weak.
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Use msgtest and testsuccess with a function instead of failing
with a simple exit 1. This looks nicer.
Gbp-Dch: ignore
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This gets rid of byte-range requests and 416 responses.
Gbp-Dch: ignore
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This should make the test less flaky, as with a small file,
we might have already received all the data before trying
to apply rate limits which is a constant source of failure
on the i386 Ubuntu autopkgtest.
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If the package is marked for removal, keep it marked for
removal and do not mark it for keep. If we mark it for keep,
we some how later get to a different stage where it is marked
for unpack instead of removal.
In the example in the bug report, we would get a:
SmartUnPack maas-region-controller-min:amd64 (replace version 2.0.0~alpha3+bzr4810-0ubuntu1 with Segmentation fault
maas-region-controller-min:amd64 was marked for removal, but
we changed it to keep and somehow it thinks that this is to
be replaced now instead of removed (probably because the
InstallVer != CandidateVer [with InstallVer = 0]).
This fixes a regression introduced in release 1.2.7, commit:
0390edd5452b081f8efcf412f96d535a1d959457
Reported-by: LaMont Jones on IRC
LP: #1562402
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Our own gpgv method can declare a digest algorithm as untrusted and
handles these as worthless signatures. If gpgv comes with inbuilt
untrusted (which is called weak in official terminology) which it e.g.
does for MD5 in recent versions we should handle it in the same way.
To check this we use the most uncommon still fully trusted hash as a
configureable one via a hidden config option to toggle through all of
the three states a hash can be in.
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Using erase(pos) is invalid in our case here as pos must be a valid and
derefenceable iterator, which isn't the case for an end-iterator (like
if we had no good signature).
The problem runs deeper still through as VALIDSIG is a keyid while
GOODSIG is just a longid so comparing them will always fail.
Closes: 818910
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On launchpad #1558484 a user reports that @ in the authentication tokens
parsing of sources.list isn't working in an older (precise) version. It
isn't the recommended way of specifying passwords and co (auth.conf is),
but we can at least test for regressions (and in this case test at all…
who was that "clever" boy disabling a test with exit……… oh, nevermind.
Git-Dch: Ignore
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Otherwise, things will just start failing later down the stack,
because (a) the lazy getters do not check if building was successful
and (b) any further getter call would return the invalid object
anyway.
Also initialize VS in pkgCache to nullptr by default.
Closes: #818628
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