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2016-11-14avoid std::get_time usage to sidestep libstdc++6 bugDavid Kalnischkies
As reported upstream in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71556 the implementation of std::get_time is currently not as accepting as strptime is, especially in how hours should be formatted. Just reverting 9febc2b238e1e322dce1f94ecbed46d595893b52 would be possible, but then we would reopen the problems fixed by it, so instead I opted here for a rewrite of the parsing logic which makes this method a lot longer, but at least it provides the same benefits as the rewrite in std::get_time was intended to give us and decouples us from the fix of the issue in the standard library implementation of GCC. LP: 1593583 (cherry picked from commit 1d742e01470bba27715a8191c50adde4b39c2f19)
2016-11-14accept only the expected UTC timezones in date parsingDavid Kalnischkies
HTTP/1.1 hardcodes GMT (RFC 7231 §7.1.1.1) and what is good enough for the internet must be good enough for us™ as we reuse the implementation internally to parse (most) dates we encounter in various places like the Release files with their Date and Valid-Until header fields. Implementing a fully timezone aware parser just feels too hard for no effective benefit as it would take 5+ years (= until LTS's are out of fashion) until a repository could use non-UTC dates and expect it to work. Not counting non-apt implementations which might or might not only want to encounter UTC here as well. As a bonus, this eliminates the use of an instance of setlocale in libapt. Closes: 819697 (cherry picked from commit 9febc2b238e1e322dce1f94ecbed46d595893b52)
2016-10-05Do not read stderr from proxy autodetection scriptsJulian Andres Klode
This fixes a regression introduced in commit 8f858d560e3b7b475c623c4e242d1edce246025a don't leak FD in AutoProxyDetect command return parsing which accidentally made the proxy autodetection code also read the scripts output on stderr, not only on stdout when it switched the code from popen() to Popen(). Reported-By: Tim Small <tim@seoss.co.uk> (cherry picked from commit 0ecceb5bb9cc8727c117195945b7116aceb984fe)
2016-10-05VersionHash: Do not skip too long dependency linesJulian Andres Klode
If the dependency line does not contain spaces in the repository but does in the dpkg status file (because dpkg normalized the dependency list), the dpkg line might be longer than the line in the repository. If it now happens to be longer than 1024 characters, it would be skipped, causing the hashes to be out of date. Note that we have to bump the minor cache version again as this changes the format slightly, and we might get mismatches with an older src cache otherwise. Fixes Debian/apt#23 (cherry picked from commit 708e2f1fe99e6f067292bc909f03f12c181e4798)
2016-10-05test/integration/test-srcrecord: Make executableJulian Andres Klode
I actually tried to amend the previous commit, but apparently I forgot to add the file mode change. Gbp-Dch: ignore (cherry picked from commit 832f95f4d018f18ff7b3d0381206f25b5a4373a6)
2016-10-05Fix segfault and out-of-bounds read in Binary fieldsJulian Andres Klode
If a Binary field contains one or more spaces before a comma, the code produced a segmentation fault, as it accidentally set a pointer to 0 instead of the value of the pointer. If the comma is at the beginning of the field, the code would create a binStartNext that points one element before the start of the string, which is undefined behavior. We also need to check that we do not exit the string during the replacement of spaces before commas: A string of the form " ," would normally exit the boundary of the Buffer: binStartNext = offset 1 ',' binEnd = offset 0 ' ' isspace_ascii(*binEnd) = true => --binEnd => binEnd = - 1 We get rid of the problem by only allowing spaces to be eliminated if they are not the first character of the buffer: binStartNext = offset 1 ',' binEnd = offset 0 ' ' binEnd > buffer = false, isspace_ascii(*binEnd) = true => exit loop => binEnd remains 0 (cherry picked from commit ce6cd75dc367b92f65e4fb539dd166d0f3361f8c)
2016-10-05don't loop on pinning pkgs from absolute debs by regexDavid Kalnischkies
An absolute filename for a *.deb file starts with a /. A package with the name of the file is inserted in the cache which is provided by the "real" package for internal reasons. The pinning code detects a regex based wildcard by having the regex start with /. That is no problem as a / can not be included in a package name… expect that our virtual filename package can and does. We fix this two ways actually: First, a regex is only being considered a regex if it also ends with / (we don't support flags). That stops our problem with the virtual filename packages already, but to be sure we also do not enter the loop if matcher and package name are equal. It has to be noted that the creation of pins for virtual packages like the here effected filename packages is pointless as only versions can be pinned, but checking that a package is really purely virtual is too costly compared to just creating an unused pin. Closes: 835818 (cherry picked from commit e950b7e2f89b5e48192cd469c963a44fff9f1450)
2016-10-05changelog: Respect Dir setting for local changelog gettingJulian Andres Klode
This fixes issues with chroots, but the goal here was to get the test suite working on systems without dpkg. (cherry picked from commit 2ed62ba6abcad809d1898a40950f86217af73812)
2016-10-05http(s): allow empty values for header fieldsDavid Kalnischkies
It seems completely pointless from a server-POV to sent empty header fields, so most of them don't do it (simply proven by this limitation existing since day one) – but it is technically allowed by the RFC as the surounding whitespaces are optional and Github seems to like sending "X-Geo-Block-List:\r\n" since recently (bug reports in other http clients indicate July) at least sometimes as the reporter claims to have seen it on https only even through it can happen with both. Closes: 834048 (cherry picked from commit 148c049150cc39f2e40894c1684dc2aefea1117e)
2016-10-05allow user@host (aka: no password) in URI parsingDavid Kalnischkies
If the URI had no password the username was ignored (cherry picked from commit a1f3ac8aba0675321dd46d074af8abcbb10c19fd)
2016-10-05pass --force-remove-essential to dpkg only if neededDavid Kalnischkies
APT (usually) knows which package is essential or not, so we can avoid passing this force flag to dpkg unconditionally if the user hasn't chosen a non-default essential handling obscuring the information. (cherry picked from commit d3930f8716f439c229cd3d11813823d847a2ecff)
2016-10-05(error) va_list 'args' was opened but not closed by va_end()David Kalnischkies
Reported-By: cppcheck Gbp-Dch: Ignore (cherry picked from commit 196d590a99e309764e07c9dc23ea98897eebf53a)
2016-08-31rred: truncate result file before writing to itDavid Kalnischkies
If another file in the transaction fails and hence dooms the transaction we can end in a situation in which a -patched file (= rred writes the result of the patching to it) remains in the partial/ directory. The next apt call will perform the rred patching again and write its result again to the -patched file, but instead of starting with an empty file as intended it will override the content previously in the file which has the same result if the new content happens to be longer than the old content, but if it isn't parts of the old content remain in the file which will pass verification as the new content written to it matches the hashes and if the entire transaction passes the file will be moved the lists/ directory where it might or might not trigger errors depending on if the old content which remained forms a valid file together with the new content. This has no real security implications as no untrusted data is involved: The old content consists of a base file which passed verification and a bunch of patches which all passed multiple verifications as well, so the old content isn't controllable by an attacker and the new one isn't either (as the new content alone passes verification). So the best an attacker can do is letting the user run into the same issue as in the report. Closes: #831762 (cherry picked from commit 0e071dfe205ad21d8b929b4bb8164b008dc7c474)
2016-08-31Add kernels with "+" in the package name to APT::NeverAutoRemoveAndrew Patterson
Escape "+" in kernel package names when generating APT::NeverAutoRemove list so it is not treated as a regular expression meta-character. [Changed by David Kalnischkies: let test actually test the change] Closes: #830159 (cherry picked from commit 130176bcb6ce65c98d5692196c55cc18b4c210e0)
2016-08-31don't change owner/perms/times through file:// symlinksDavid Kalnischkies
If we have files in partial/ from a previous invocation or similar such those could be symlinks created by file:// sources. The code is expecting only real files through and happily changes owner, modification times and permission on the file the symlink points to which tend to be files we have no business in touching in this way. Permissions of symlinks shouldn't be changed, changing owner is usually pointless to, but just to be sure we pick the easy way out and use lchown, check for symlinks before chmod/utimes. Reported-By: Mattia Rizzolo on IRC (cherry picked from commit 3465138575e1fd0d5892d9b6be1ae232eb873460)
2016-08-31Make the test case executableJulian Andres Klode
Gbp-Dch: ignore (cherry picked from commit 2a90aa7a064047fb1c8783b31720cd345018ca4a)
2016-08-31indextargets: Check that cache could be built before using itJulian Andres Klode
This caused a crash because the cache was a nullptr. Closes: #829651 (cherry picked from commit 8823972649b0d3049c9c0d34b5f1d31160234fb4)
2016-08-31do not treat same-version local debs as downgradeDavid Kalnischkies
As the volatile sources are parsed last they were sorted behind the dpkg/status file and hence are treated as a downgrade, which isn't really what you want to happen as from a user POV its an upgrade. (cherry picked from commit cb9ac09bd6a36e73c2dce1d529acde6e4d15e32d)
2016-08-31reinstalling local deb file is no downgradeDavid Kalnischkies
If we have a (e.g. locally built) deb file installed and do try to install it again apt complained about this being a downgrade, but it wasn't as it is the very same version… it was just confused into not merging the versions together which looks like a downgrade then. The same size assumption is usually good, but given that volatile files are parsed last (even after the status file) the base assumption no longer holds, but is easy to adept without actually changing anything in practice. (cherry picked from commit e7edb2fef8370d54a4b8e5a01266e6eda81ef84e)
2016-08-31protect only the latest same-source providers from autoremoveDavid Kalnischkies
Traditionally all providers are protected providing something as apt can't know which of them is actually really providing the functionality for the user ensuring that we don't propose the removal of used stuff, but that is of course also keeping stuff around which could be removed. That can cause the collection of multiple old providers until the provided package is itself no longer needed (e.g. out-of-tree kernel modules). We combat this by marking providers only from the newest source package version so that old providers built by older versions of the same source package can be garbage collected. (cherry picked from commit a0ed43f7323b9d7976ed0ba8d437a42e24af9eaf)
2016-08-31don't do atomic overrides with failed filesDavid Kalnischkies
We deploy atomic renames for some files, but these renames also happen if something about the file failed which isn't really the point of the exercise… Closes: 828908 (cherry picked from commit fc5db01bb7d1546944200d197866b0b5c378f100)
2016-06-20do not error if auto-detect-proxy cmd has no outputDavid Kalnischkies
Regression introduced in 8f858d560e3b7b475c623c4e242d1edce246025a. Commands are probably better of always having output through as the fall through to the generic proxy settings is likely not intended. As documenting and implementing this more consistently is kind of a regression through, it is split off into the next commit. Closes: 827713 (cherry picked from commit cad1877559f3e1703c3fea4d081978e1b4bb4a0e)
2016-06-10don't leak an FD in lz4 (de)compressionDavid Kalnischkies
Seen first in #826783, but as this buglog also shows leaked uncompressed files as well we don't close it just yet. (cherry picked from commit 6f35be91c9e86e463bca7df6eadf05412c7b732c)
2016-06-10do not hang on piped input in PipedFileFdPrivateDavid Kalnischkies
This effects only compressors configured on the fly (rather then the inbuilt ones as they use a library). (cherry picked from commit bdc42211700ef0f6f40e4ef3f362e52d684d70fb)
2016-06-01prevent C++ locale number formatting in text APIsDavid Kalnischkies
Setting the C++ locale via std::locale::global(std::locale("")); which would otherwise default to the default C locale (aka: unaffected by setlocale) effects the formatting of numeric types in IO streams, which for output for humans is perfectly sensible, but breaks our many text interfaces used and parsed by us and others without expecting the numbers to be formatted. Closes: #825396 (cherry picked from commit b58e2c7c56b1416a343e81f9f80cb1f02c128e25)
2016-05-20fail instead of segfault on unreadable config filesDavid Kalnischkies
The report mentions "apt list --upgradable", but there are others which have inconsistent behavior ranging from segfaulting to doing something with the partial (and hence incomplete) data. We had a recent report about sources.list (#818628), this one mentions prefences, the obvious next step is conf files… so the testcase is adapted to check for all three in file and directory versions and run a bunch of commands each time which should all have more or less the same behavior in such a case (aka error out). Closes: 824503 (cherry picked from commit fdf9eef4d96a18d0167708499c993e1174251e88)
2016-05-11respect user pinning in M-A:same version (un)screwingDavid Kalnischkies
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
2016-05-10test: fix permission issue if run as rootDavid Kalnischkies
Always those silly mistakes. Do what I mean, not what I said… Reported-By: Travis Git-Dch: Ignore (cherry picked from commit 737ce3135d332e3b6165ac1fac5c68e21ba1bdba)
2016-05-10update: Run Post-Invoke-Success if not all sources failedJulian Andres Klode
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. (cherry picked from commit 35664152e47a1d4d712fd52e0f0a2dc8ed359d32)
2016-05-10don't sent uninstallable rc-only versions via EDSPDavid Kalnischkies
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 (cherry picked from commit 33190fe3d3c200dcd417cd336f9db11f5f4408d5)
2016-05-10allow redirection for items without a space in the desc againDavid Kalnischkies
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. (cherry picked from commit 84ac6edfabe1c92d67e8d441e04216ad33c89165)
2016-05-10don't show NO_PUBKEY warning if repo is signed by another keyDavid Kalnischkies
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 (Backported from commit fb7b11ebb852fa255053ecab605bc9cfe9de0603)
2016-05-10deb822: Restore support for <multivalue>-{Add,Remove}James McCoy
Redesign of multivalue options in 463c8d801595ce5ac94d7c032264820be7434232 caused the parser to look for <multivalue>{Add,Remove} (no hyphen) instead of the expected <multivalue>-{Add,Remove}. (cherry picked from commit f5585106d61b381c9dcf8f1dd48c742dc68f6c81)
2016-04-14ensure outdated files are dropped without lists-cleanupDavid Kalnischkies
Tested via (newly) empty index files, but effects also files dropped from the repository or an otherwise changed repository config.
2016-04-14silently skip acquire of empty index filesDavid Kalnischkies
There is just no point in taking the time to acquire empty files – especially as it will be tiny non-empty compressed files usually.
2016-04-14allow uncompressed files to be empty in store againDavid Kalnischkies
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.
2016-04-14fix Alt-Filename handling of file methodDavid Kalnischkies
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)
2016-04-13webserver: 416 errors aren't closing connectionsDavid Kalnischkies
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
2016-04-07stop handling items in doomed transactionsDavid Kalnischkies
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
2016-03-28Allow lowering trust level of a hash via configJulian Andres Klode
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.
2016-03-27test-apt-update-reporting: Make more use of frameworkJulian Andres Klode
Use msgtest and testsuccess with a function instead of failing with a simple exit 1. This looks nicer. Gbp-Dch: ignore
2016-03-27test-acquire-same-file-multiple-times: Delete files before retryingJulian Andres Klode
This gets rid of byte-range requests and 416 responses. Gbp-Dch: ignore
2016-03-27test-apt-download-progress: Use a larger file for testingJulian Andres Klode
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.
2016-03-27Do not mark packages for keep that we want to removeJulian Andres Klode
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
2016-03-25drop confusing comma from no strong hash messageDavid Kalnischkies
2016-03-22handle gpgv's weak-digests ERRSIGDavid Kalnischkies
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.
2016-03-21properly check for "all good sigs are weak"David Kalnischkies
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
2016-03-19tests: reenable basic auth test and add @ in usernameDavid Kalnischkies
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
2016-03-19cachefile: Only set members that were initialized successfullyJulian Andres Klode
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
2016-03-17test framework: Pass -n to lsof to speed up finding the https portJulian Andres Klode
There is no point in resolving all addresses to their names, this just seriously slows the setup phase down. So just pass -n to not resolve names anymore. Gbp-Dch: ignore