X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0340069cc4709a18ba117090763d9f263de999a9..8e99b22c31eb47d0422e9a69e83dc99bb315ded8:/apt-pkg/acquire-item.cc?ds=sidebyside diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index aeadbcfc7..5ae9229d9 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -175,41 +175,101 @@ static void ReportMirrorFailureToCentral(pkgAcquire::Item const &I, std::string } /*}}}*/ -static bool MessageInsecureRepository(bool const isError, std::string const &msg)/*{{{*/ +static APT_NONNULL(2) bool MessageInsecureRepository(bool const isError, char const * const msg, std::string const &repo)/*{{{*/ { + std::string m; + strprintf(m, msg, repo.c_str()); if (isError) { - _error->Error("%s", msg.c_str()); + _error->Error("%s", m.c_str()); _error->Notice("%s", _("Updating from such a repository can't be done securely, and is therefore disabled by default.")); } else { - _error->Warning("%s", msg.c_str()); + _error->Warning("%s", m.c_str()); _error->Notice("%s", _("Data from such a repository can't be authenticated and is therefore potentially dangerous to use.")); } _error->Notice("%s", _("See apt-secure(8) manpage for repository creation and user configuration details.")); return false; } -static bool MessageInsecureRepository(bool const isError, char const * const msg, std::string const &repo) + /*}}}*/ +// AllowInsecureRepositories /*{{{*/ +enum class InsecureType { UNSIGNED, WEAK, NORELEASE }; +static bool TargetIsAllowedToBe(IndexTarget const &Target, InsecureType const type) { - std::string m; - strprintf(m, msg, repo.c_str()); - return MessageInsecureRepository(isError, m); + if (_config->FindB("Acquire::AllowInsecureRepositories")) + return true; + + if (Target.OptionBool(IndexTarget::ALLOW_INSECURE)) + return true; + + switch (type) + { + case InsecureType::UNSIGNED: break; + case InsecureType::NORELEASE: break; + case InsecureType::WEAK: + if (_config->FindB("Acquire::AllowWeakRepositories")) + return true; + if (Target.OptionBool(IndexTarget::ALLOW_WEAK)) + return true; + break; + } + return false; } - /*}}}*/ -static bool AllowInsecureRepositories(char const * const msg, std::string const &repo,/*{{{*/ +static bool APT_NONNULL(3, 4, 5) AllowInsecureRepositories(InsecureType const msg, std::string const &repo, metaIndex const * const MetaIndexParser, pkgAcqMetaClearSig * const TransactionManager, pkgAcquire::Item * const I) { + // we skip weak downgrades as its unlikely that a repository gets really weaker – + // its more realistic that apt got pickier in a newer version + if (msg != InsecureType::WEAK) + { + std::string const FinalInRelease = TransactionManager->GetFinalFilename(); + std::string const FinalReleasegpg = FinalInRelease.substr(0, FinalInRelease.length() - strlen("InRelease")) + "Release.gpg"; + if (RealFileExists(FinalReleasegpg) || RealFileExists(FinalInRelease)) + { + char const * msgstr = nullptr; + switch (msg) + { + case InsecureType::UNSIGNED: msgstr = _("The repository '%s' is no longer signed."); break; + case InsecureType::NORELEASE: msgstr = _("The repository '%s' does no longer have a Release file."); break; + case InsecureType::WEAK: /* unreachable */ break; + } + if (_config->FindB("Acquire::AllowDowngradeToInsecureRepositories") || + TransactionManager->Target.OptionBool(IndexTarget::ALLOW_DOWNGRADE_TO_INSECURE)) + { + // meh, the users wants to take risks (we still mark the packages + // from this repository as unauthenticated) + _error->Warning(msgstr, repo.c_str()); + _error->Warning(_("This is normally not allowed, but the option " + "Acquire::AllowDowngradeToInsecureRepositories was " + "given to override it.")); + } else { + MessageInsecureRepository(true, msgstr, repo); + TransactionManager->AbortTransaction(); + I->Status = pkgAcquire::Item::StatError; + return false; + } + } + } + if(MetaIndexParser->GetTrusted() == metaIndex::TRI_YES) return true; - if (_config->FindB("Acquire::AllowInsecureRepositories") == true) + char const * msgstr = nullptr; + switch (msg) { - MessageInsecureRepository(false, msg, repo); + case InsecureType::UNSIGNED: msgstr = _("The repository '%s' is not signed."); break; + case InsecureType::NORELEASE: msgstr = _("The repository '%s' does not have a Release file."); break; + case InsecureType::WEAK: msgstr = _("The repository '%s' provides only weak security information."); break; + } + + if (TargetIsAllowedToBe(TransactionManager->Target, msg) == true) + { + MessageInsecureRepository(false, msgstr, repo); return true; } - MessageInsecureRepository(true, msg, repo); + MessageInsecureRepository(true, msgstr, repo); TransactionManager->AbortTransaction(); I->Status = pkgAcquire::Item::StatError; return false; @@ -239,8 +299,20 @@ APT_CONST bool pkgAcqTransactionItem::HashesRequired() const we can at least trust them for integrity of the download itself. Only repositories without a Release file can (obviously) not have hashes – and they are very uncommon and strongly discouraged */ - return TransactionManager->MetaIndexParser != NULL && - TransactionManager->MetaIndexParser->GetLoadedSuccessfully() == metaIndex::TRI_YES; + if (TransactionManager->MetaIndexParser->GetLoadedSuccessfully() != metaIndex::TRI_YES) + return false; + if (TargetIsAllowedToBe(Target, InsecureType::WEAK)) + { + /* If we allow weak hashes, we check that we have some (weak) and then + declare hashes not needed. That will tip us in the right direction + as if hashes exist, they will be used, even if not required */ + auto const hsl = GetExpectedHashes(); + if (hsl.usable()) + return true; + if (hsl.empty() == false) + return false; + } + return true; } HashStringList pkgAcqTransactionItem::GetExpectedHashes() const { @@ -331,13 +403,27 @@ bool pkgAcqTransactionItem::QueueURI(pkgAcquire::ItemDesc &Item) return false; } std::string const FinalFile = GetFinalFilename(); - if (TransactionManager != NULL && TransactionManager->IMSHit == true && - FileExists(FinalFile) == true) + if (TransactionManager->IMSHit == true && FileExists(FinalFile) == true) { PartialFile = DestFile = FinalFile; Status = StatDone; return false; } + // If we got the InRelease file via a mirror, pick all indexes directly from this mirror, too + if (TransactionManager->BaseURI.empty() == false && + URI::SiteOnly(Item.URI) != URI::SiteOnly(TransactionManager->BaseURI)) + { + // this ensures we rewrite only once and only the first step + auto const OldBaseURI = Target.Option(IndexTarget::BASE_URI); + if (OldBaseURI.empty() == false && APT::String::Startswith(Item.URI, OldBaseURI)) + { + auto const ExtraPath = Item.URI.substr(OldBaseURI.length()); + Item.URI = flCombine(TransactionManager->BaseURI, ExtraPath); + UsedMirror = TransactionManager->UsedMirror; + if (Item.Description.find(" ") != string::npos) + Item.Description.replace(0, Item.Description.find(" "), UsedMirror); + } + } return pkgAcquire::Item::QueueURI(Item); } /* The transition manager InRelease itself (or its older sisters-in-law @@ -679,35 +765,76 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con Dequeue(); } + string const FailReason = LookupTag(Message, "FailReason"); + enum { MAXIMUM_SIZE_EXCEEDED, HASHSUM_MISMATCH, WEAK_HASHSUMS, OTHER } failreason = OTHER; + if ( FailReason == "MaximumSizeExceeded") + failreason = MAXIMUM_SIZE_EXCEEDED; + else if ( FailReason == "WeakHashSums") + failreason = WEAK_HASHSUMS; + else if (Status == StatAuthError) + failreason = HASHSUM_MISMATCH; + if(ErrorText.empty()) { if (Status == StatAuthError) { std::ostringstream out; - out << _("Hash Sum mismatch") << std::endl; - out << "Hashes of expected file:" << std::endl; - for (auto const &hs: GetExpectedHashes()) - out << " - " << hs.toStr() << std::endl; - out << "Hashes of received file:" << std::endl; - for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) + switch (failreason) { - std::string const tagname = std::string(*type) + "-Hash"; - std::string const hashsum = LookupTag(Message, tagname.c_str()); - if (hashsum.empty() == false) - out << " - " << HashString(*type, hashsum).toStr() << std::endl; + case HASHSUM_MISMATCH: + out << _("Hash Sum mismatch") << std::endl; + break; + case WEAK_HASHSUMS: + out << _("Insufficient information available to perform this download securely") << std::endl; + break; + case MAXIMUM_SIZE_EXCEEDED: + case OTHER: + out << LookupTag(Message, "Message") << std::endl; + break; + } + auto const ExpectedHashes = GetExpectedHashes(); + if (ExpectedHashes.empty() == false) + { + out << "Hashes of expected file:" << std::endl; + for (auto const &hs: ExpectedHashes) + { + out << " - " << hs.toStr(); + if (hs.usable() == false) + out << " [weak]"; + out << std::endl; + } + } + if (failreason == HASHSUM_MISMATCH) + { + out << "Hashes of received file:" << std::endl; + for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) + { + std::string const tagname = std::string(*type) + "-Hash"; + std::string const hashsum = LookupTag(Message, tagname.c_str()); + if (hashsum.empty() == false) + { + auto const hs = HashString(*type, hashsum); + out << " - " << hs.toStr(); + if (hs.usable() == false) + out << " [weak]"; + out << std::endl; + } + } + out << "Last modification reported: " << LookupTag(Message, "Last-Modified", "") << std::endl; } - out << "Last modification reported: " << LookupTag(Message, "Last-Modified", "") << std::endl; ErrorText = out.str(); } else ErrorText = LookupTag(Message,"Message"); } - string const FailReason = LookupTag(Message, "FailReason"); - if (FailReason == "MaximumSizeExceeded") - RenameOnError(MaximumSizeExceeded); - else if (Status == StatAuthError) - RenameOnError(HashSumMismatch); + switch (failreason) + { + case MAXIMUM_SIZE_EXCEEDED: RenameOnError(MaximumSizeExceeded); break; + case HASHSUM_MISMATCH: RenameOnError(HashSumMismatch); break; + case WEAK_HASHSUMS: break; + case OTHER: break; + } if (FailReason.empty() == false) ReportMirrorFailureToCentral(*this, FailReason, ErrorText); @@ -800,7 +927,6 @@ bool pkgAcquire::Item::RenameOnError(pkgAcquire::Item::RenameOnErrorState const { case HashSumMismatch: errtext = _("Hash Sum mismatch"); - Status = StatAuthError; break; case SizeMismatch: errtext = _("Size mismatch"); @@ -821,7 +947,6 @@ bool pkgAcquire::Item::RenameOnError(pkgAcquire::Item::RenameOnErrorState const break; case MaximumSizeExceeded: // the method is expected to report a good error for this - Status = StatError; break; case PDiffError: // no handling here, done by callers @@ -899,10 +1024,8 @@ static void LoadLastMetaIndexParser(pkgAcqMetaClearSig * const TransactionManage // AcqMetaBase - Constructor /*{{{*/ pkgAcqMetaBase::pkgAcqMetaBase(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager, - std::vector const &IndexTargets, IndexTarget const &DataTarget) : pkgAcqTransactionItem(Owner, TransactionManager, DataTarget), d(NULL), - IndexTargets(IndexTargets), AuthPass(false), IMSHit(false), State(TransactionStarted) { } @@ -923,7 +1046,7 @@ void pkgAcqMetaBase::AbortTransaction() { case TransactionStarted: break; case TransactionAbort: _error->Fatal("Transaction %s was already aborted and is aborted again", TransactionManager->Target.URI.c_str()); return; - case TransactionCommit: _error->Fatal("Transaction %s was already aborted and is now commited", TransactionManager->Target.URI.c_str()); return; + case TransactionCommit: _error->Fatal("Transaction %s was already aborted and is now committed", TransactionManager->Target.URI.c_str()); return; } TransactionManager->State = TransactionAbort; @@ -965,8 +1088,8 @@ void pkgAcqMetaBase::CommitTransaction() switch (TransactionManager->State) { case TransactionStarted: break; - case TransactionAbort: _error->Fatal("Transaction %s was already commited and is now aborted", TransactionManager->Target.URI.c_str()); return; - case TransactionCommit: _error->Fatal("Transaction %s was already commited and is again commited", TransactionManager->Target.URI.c_str()); return; + case TransactionAbort: _error->Fatal("Transaction %s was already committed and is now aborted", TransactionManager->Target.URI.c_str()); return; + case TransactionCommit: _error->Fatal("Transaction %s was already committed and is again committed", TransactionManager->Target.URI.c_str()); return; } TransactionManager->State = TransactionCommit; @@ -1065,6 +1188,15 @@ bool pkgAcqMetaBase::CheckDownloadDone(pkgAcqTransactionItem * const I, const st // We have just finished downloading a Release file (it is not // verified yet) + // Save the final base URI we got this Release file from + if (I->UsedMirror.empty() == false && _config->FindB("Acquire::SameMirrorForAllIndexes", true)) + { + if (APT::String::Endswith(I->Desc.URI, "InRelease")) + TransactionManager->BaseURI = I->Desc.URI.substr(0, I->Desc.URI.length() - strlen("InRelease")); + else if (APT::String::Endswith(I->Desc.URI, "Release")) + TransactionManager->BaseURI = I->Desc.URI.substr(0, I->Desc.URI.length() - strlen("Release")); + } + std::string const FileName = LookupTag(Message,"Filename"); if (FileName != I->DestFile && RealFileExists(I->DestFile) == false) { @@ -1091,8 +1223,7 @@ bool pkgAcqMetaBase::CheckDownloadDone(pkgAcqTransactionItem * const I, const st { // for simplicity, the transaction manager is always InRelease // even if it doesn't exist. - if (TransactionManager != NULL) - TransactionManager->IMSHit = true; + TransactionManager->IMSHit = true; I->PartialFile = I->DestFile = I->GetFinalFilename(); } @@ -1108,6 +1239,8 @@ bool pkgAcqMetaBase::CheckAuthDone(string const &Message) /*{{{*/ // valid signature from a key in the trusted keyring. We // perform additional verification of its contents, and use them // to verify the indexes we are about to download + if (_config->FindB("Debug::pkgAcquire::Auth", false)) + std::cerr << "Signature verification succeeded: " << DestFile << std::endl; if (TransactionManager->IMSHit == false) { @@ -1128,7 +1261,8 @@ bool pkgAcqMetaBase::CheckAuthDone(string const &Message) /*{{{*/ LoadLastMetaIndexParser(TransactionManager, FinalRelease, FinalInRelease); } - if (TransactionManager->MetaIndexParser->Load(DestFile, &ErrorText) == false) + bool const GoodAuth = TransactionManager->MetaIndexParser->Load(DestFile, &ErrorText); + if (GoodAuth == false && AllowInsecureRepositories(InsecureType::WEAK, Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == false) { Status = StatAuthError; return false; @@ -1140,115 +1274,130 @@ bool pkgAcqMetaBase::CheckAuthDone(string const &Message) /*{{{*/ return false; } - if (_config->FindB("Debug::pkgAcquire::Auth", false)) - std::cerr << "Signature verification succeeded: " - << DestFile << std::endl; - // Download further indexes with verification - QueueIndexes(true); + TransactionManager->QueueIndexes(GoodAuth); - return true; + return GoodAuth; } /*}}}*/ -void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/ +void pkgAcqMetaClearSig::QueueIndexes(bool const verify) /*{{{*/ { // at this point the real Items are loaded in the fetcher ExpectedAdditionalItems = 0; - bool metaBaseSupportsByHash = false; - if (TransactionManager != NULL && TransactionManager->MetaIndexParser != NULL) - metaBaseSupportsByHash = TransactionManager->MetaIndexParser->GetSupportsAcquireByHash(); - - for (std::vector ::iterator Target = IndexTargets.begin(); - Target != IndexTargets.end(); - ++Target) - { + std::set targetsSeen; + bool const hasReleaseFile = TransactionManager->MetaIndexParser != NULL; + bool const metaBaseSupportsByHash = hasReleaseFile && TransactionManager->MetaIndexParser->GetSupportsAcquireByHash(); + bool hasHashes = true; + auto IndexTargets = TransactionManager->MetaIndexParser->GetIndexTargets(); + if (hasReleaseFile && verify == false) + hasHashes = std::any_of(IndexTargets.begin(), IndexTargets.end(), + [&](IndexTarget const &Target) { return TransactionManager->MetaIndexParser->Exists(Target.MetaKey); }); + for (auto&& Target: IndexTargets) + { + // if we have seen a target which is created-by a target this one here is declared a + // fallback to, we skip acquiring the fallback (but we make sure we clean up) + if (targetsSeen.find(Target.Option(IndexTarget::FALLBACK_OF)) != targetsSeen.end()) + { + targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY)); + new CleanupItem(Owner, TransactionManager, Target); + continue; + } // all is an implementation detail. Users shouldn't use this as arch // We need this support trickery here as e.g. Debian has binary-all files already, // but arch:all packages are still in the arch:any files, so we would waste precious // download time, bandwidth and diskspace for nothing, BUT Debian doesn't feature all // in the set of supported architectures, so we can filter based on this property rather // than invent an entirely new flag we would need to carry for all of eternity. - if (Target->Option(IndexTarget::ARCHITECTURE) == "all") + if (hasReleaseFile && Target.Option(IndexTarget::ARCHITECTURE) == "all") { if (TransactionManager->MetaIndexParser->IsArchitectureSupported("all") == false || - TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(*Target) == false) + TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(Target) == false) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); continue; } } - bool trypdiff = Target->OptionBool(IndexTarget::PDIFFS); - if (verify == true) + bool trypdiff = Target.OptionBool(IndexTarget::PDIFFS); + if (hasReleaseFile == true) { - if (TransactionManager->MetaIndexParser->Exists(Target->MetaKey) == false) + if (TransactionManager->MetaIndexParser->Exists(Target.MetaKey) == false) { // optional targets that we do not have in the Release file are skipped - if (Target->IsOptional) + if (hasHashes == true && Target.IsOptional) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); continue; } - std::string const &arch = Target->Option(IndexTarget::ARCHITECTURE); + std::string const &arch = Target.Option(IndexTarget::ARCHITECTURE); if (arch.empty() == false) { if (TransactionManager->MetaIndexParser->IsArchitectureSupported(arch) == false) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); _error->Notice(_("Skipping acquire of configured file '%s' as repository '%s' doesn't support architecture '%s'"), - Target->MetaKey.c_str(), TransactionManager->Target.Description.c_str(), arch.c_str()); + Target.MetaKey.c_str(), TransactionManager->Target.Description.c_str(), arch.c_str()); continue; } // if the architecture is officially supported but currently no packages for it available, // ignore silently as this is pretty much the same as just shipping an empty file. // if we don't know which architectures are supported, we do NOT ignore it to notify user about this - if (TransactionManager->MetaIndexParser->IsArchitectureSupported("*undefined*") == false) + if (hasHashes == true && TransactionManager->MetaIndexParser->IsArchitectureSupported("*undefined*") == false) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); continue; } } - Status = StatAuthError; - strprintf(ErrorText, _("Unable to find expected entry '%s' in Release file (Wrong sources.list entry or malformed file)"), Target->MetaKey.c_str()); - return; + if (hasHashes == true) + { + Status = StatAuthError; + strprintf(ErrorText, _("Unable to find expected entry '%s' in Release file (Wrong sources.list entry or malformed file)"), Target.MetaKey.c_str()); + return; + } + else + { + new pkgAcqIndex(Owner, TransactionManager, Target); + continue; + } } - else + else if (verify) { - auto const hashes = GetExpectedHashesFor(Target->MetaKey); + auto const hashes = GetExpectedHashesFor(Target.MetaKey); if (hashes.empty() == false) { - if (hashes.usable() == false) + if (hashes.usable() == false && TargetIsAllowedToBe(TransactionManager->Target, InsecureType::WEAK) == false) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); _error->Warning(_("Skipping acquire of configured file '%s' as repository '%s' provides only weak security information for it"), - Target->MetaKey.c_str(), TransactionManager->Target.Description.c_str()); + Target.MetaKey.c_str(), TransactionManager->Target.Description.c_str()); continue; } // empty files are skipped as acquiring the very small compressed files is a waste of time else if (hashes.FileSize() == 0) { - new CleanupItem(Owner, TransactionManager, *Target); + new CleanupItem(Owner, TransactionManager, Target); + targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY)); continue; } } } // autoselect the compression method - std::vector types = VectorizeString(Target->Option(IndexTarget::COMPRESSIONTYPES), ' '); + std::vector types = VectorizeString(Target.Option(IndexTarget::COMPRESSIONTYPES), ' '); types.erase(std::remove_if(types.begin(), types.end(), [&](std::string const &t) { if (t == "uncompressed") - return TransactionManager->MetaIndexParser->Exists(Target->MetaKey) == false; - std::string const MetaKey = Target->MetaKey + "." + t; + return TransactionManager->MetaIndexParser->Exists(Target.MetaKey) == false; + std::string const MetaKey = Target.MetaKey + "." + t; return TransactionManager->MetaIndexParser->Exists(MetaKey) == false; }), types.end()); if (types.empty() == false) { std::ostringstream os; // add the special compressiontype byhash first if supported - std::string const useByHashConf = Target->Option(IndexTarget::BY_HASH); + std::string const useByHashConf = Target.Option(IndexTarget::BY_HASH); bool useByHash = false; if(useByHashConf == "force") useByHash = true; @@ -1258,12 +1407,12 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/ os << "by-hash "; std::copy(types.begin(), types.end()-1, std::ostream_iterator(os, " ")); os << *types.rbegin(); - Target->Options["COMPRESSIONTYPES"] = os.str(); + Target.Options["COMPRESSIONTYPES"] = os.str(); } else - Target->Options["COMPRESSIONTYPES"].clear(); + Target.Options["COMPRESSIONTYPES"].clear(); - std::string filename = GetExistingFilename(GetFinalFileNameFromURI(Target->URI)); + std::string filename = GetExistingFilename(GetFinalFileNameFromURI(Target.URI)); if (filename.empty() == false) { // if the Release file is a hit and we have an index it must be the current one @@ -1274,8 +1423,8 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/ // see if the file changed since the last Release file // we use the uncompressed files as we might compress differently compared to the server, // so the hashes might not match, even if they contain the same data. - HashStringList const newFile = GetExpectedHashesFromFor(TransactionManager->MetaIndexParser, Target->MetaKey); - HashStringList const oldFile = GetExpectedHashesFromFor(TransactionManager->LastMetaIndexParser, Target->MetaKey); + HashStringList const newFile = GetExpectedHashesFromFor(TransactionManager->MetaIndexParser, Target.MetaKey); + HashStringList const oldFile = GetExpectedHashesFromFor(TransactionManager->LastMetaIndexParser, Target.MetaKey); if (newFile != oldFile) filename.clear(); } @@ -1287,57 +1436,42 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/ if (filename.empty() == false) { - new NoActionItem(Owner, *Target, filename); - std::string const idxfilename = GetFinalFileNameFromURI(GetDiffIndexURI(*Target)); + new NoActionItem(Owner, Target, filename); + std::string const idxfilename = GetFinalFileNameFromURI(GetDiffIndexURI(Target)); if (FileExists(idxfilename)) - new NoActionItem(Owner, *Target, idxfilename); + new NoActionItem(Owner, Target, idxfilename); + targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY)); continue; } // check if we have patches available - trypdiff &= TransactionManager->MetaIndexParser->Exists(GetDiffIndexFileName(Target->MetaKey)); + trypdiff &= TransactionManager->MetaIndexParser->Exists(GetDiffIndexFileName(Target.MetaKey)); } else { // if we have no file to patch, no point in trying - trypdiff &= (GetExistingFilename(GetFinalFileNameFromURI(Target->URI)).empty() == false); + trypdiff &= (GetExistingFilename(GetFinalFileNameFromURI(Target.URI)).empty() == false); } // no point in patching from local sources if (trypdiff) { - std::string const proto = Target->URI.substr(0, strlen("file:/")); + std::string const proto = Target.URI.substr(0, strlen("file:/")); if (proto == "file:/" || proto == "copy:/" || proto == "cdrom:") trypdiff = false; } // Queue the Index file (Packages, Sources, Translation-$foo, …) + targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY)); if (trypdiff) - new pkgAcqDiffIndex(Owner, TransactionManager, *Target); + new pkgAcqDiffIndex(Owner, TransactionManager, Target); else - new pkgAcqIndex(Owner, TransactionManager, *Target); + new pkgAcqIndex(Owner, TransactionManager, Target); } } /*}}}*/ -bool pkgAcqMetaBase::VerifyVendor(string const &Message) /*{{{*/ +bool pkgAcqMetaBase::VerifyVendor(string const &) /*{{{*/ { - string::size_type pos; - - // check for missing sigs (that where not fatal because otherwise we had - // bombed earlier) - string missingkeys; - string msg = _("There is no public key available for the " - "following key IDs:\n"); - pos = Message.find("NO_PUBKEY "); - if (pos != std::string::npos) - { - string::size_type start = pos+strlen("NO_PUBKEY "); - string Fingerprint = Message.substr(start, Message.find("\n")-start); - missingkeys += (Fingerprint); - } - if(!missingkeys.empty()) - _error->Warning("%s", (msg + missingkeys).c_str()); - string Transformed = TransactionManager->MetaIndexParser->GetExpectedDist(); if (Transformed == "../project/experimental") @@ -1345,7 +1479,7 @@ bool pkgAcqMetaBase::VerifyVendor(string const &Message) /*{{{*/ Transformed = "experimental"; } - pos = Transformed.rfind('/'); + auto pos = Transformed.rfind('/'); if (pos != string::npos) { Transformed = Transformed.substr(0, pos); @@ -1424,15 +1558,13 @@ pkgAcqMetaBase::~pkgAcqMetaBase() pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire * const Owner, /*{{{*/ IndexTarget const &ClearsignedTarget, IndexTarget const &DetachedDataTarget, IndexTarget const &DetachedSigTarget, - std::vector const &IndexTargets, metaIndex * const MetaIndexParser) : - pkgAcqMetaIndex(Owner, this, ClearsignedTarget, DetachedSigTarget, IndexTargets), - d(NULL), ClearsignedTarget(ClearsignedTarget), - DetachedDataTarget(DetachedDataTarget), + pkgAcqMetaIndex(Owner, this, ClearsignedTarget, DetachedSigTarget), + d(NULL), DetachedDataTarget(DetachedDataTarget), MetaIndexParser(MetaIndexParser), LastMetaIndexParser(NULL) { // index targets + (worst case:) Release/Release.gpg - ExpectedAdditionalItems = IndexTargets.size() + 2; + ExpectedAdditionalItems = std::numeric_limits::max(); TransactionManager->Add(this); } /*}}}*/ @@ -1458,7 +1590,7 @@ void pkgAcqMetaClearSig::Finished() /*{{{*/ { if(_config->FindB("Debug::Acquire::Transaction", false) == true) std::clog << "Finished: " << DestFile <State == TransactionStarted && + if(TransactionManager->State == TransactionStarted && TransactionManager->TransactionHasError() == false) TransactionManager->CommitTransaction(); } @@ -1500,15 +1632,23 @@ void pkgAcqMetaClearSig::Done(std::string const &Message, new NoActionItem(Owner, DetachedSigTarget); } } + else if (Status != StatAuthError) + { + string const FinalFile = GetFinalFileNameFromURI(DetachedDataTarget.URI); + string const OldFile = GetFinalFilename(); + if (TransactionManager->IMSHit == false) + TransactionManager->TransactionStageCopy(this, DestFile, FinalFile); + else if (RealFileExists(OldFile) == false) + new NoActionItem(Owner, DetachedDataTarget); + else + TransactionManager->TransactionStageCopy(this, OldFile, FinalFile); + } } /*}}}*/ void pkgAcqMetaClearSig::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf) /*{{{*/ { Item::Failed(Message, Cnf); - // we failed, we will not get additional items from this method - ExpectedAdditionalItems = 0; - if (AuthPass == false) { if (Status == StatAuthError || Status == StatTransientNetworkError) @@ -1527,17 +1667,14 @@ void pkgAcqMetaClearSig::Failed(string const &Message,pkgAcquire::MethodConfig c TransactionManager->TransactionStageRemoval(this, GetFinalFilename()); Status = StatDone; - new pkgAcqMetaIndex(Owner, TransactionManager, DetachedDataTarget, DetachedSigTarget, IndexTargets); + new pkgAcqMetaIndex(Owner, TransactionManager, DetachedDataTarget, DetachedSigTarget); } else { if(CheckStopAuthentication(this, Message)) return; - // No Release file was present, or verification failed, so fall - // back to queueing Packages files without verification - // only allow going further if the user explicitly wants it - if(AllowInsecureRepositories(_("The repository '%s' is not signed."), ClearsignedTarget.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) + if(AllowInsecureRepositories(InsecureType::UNSIGNED, Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) { Status = StatDone; @@ -1556,7 +1693,7 @@ void pkgAcqMetaClearSig::Failed(string const &Message,pkgAcquire::MethodConfig c if (TransactionManager->MetaIndexParser->Load(PartialRelease, &ErrorText) == false || VerifyVendor(Message) == false) /* expired Release files are still a problem you need extra force for */; else - QueueIndexes(true); + TransactionManager->QueueIndexes(true); } } } @@ -1565,9 +1702,8 @@ void pkgAcqMetaClearSig::Failed(string const &Message,pkgAcquire::MethodConfig c pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire * const Owner, /*{{{*/ pkgAcqMetaClearSig * const TransactionManager, IndexTarget const &DataTarget, - IndexTarget const &DetachedSigTarget, - vector const &IndexTargets) : - pkgAcqMetaBase(Owner, TransactionManager, IndexTargets, DataTarget), d(NULL), + IndexTarget const &DetachedSigTarget) : + pkgAcqMetaBase(Owner, TransactionManager, DataTarget), d(NULL), DetachedSigTarget(DetachedSigTarget) { if(_config->FindB("Debug::Acquire::Transaction", false) == true) @@ -1581,9 +1717,6 @@ pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire * const Owner, /*{{{*/ Desc.Owner = this; Desc.ShortDesc = DataTarget.ShortDesc; Desc.URI = DataTarget.URI; - - // we expect more item - ExpectedAdditionalItems = IndexTargets.size(); QueueURI(Desc); } /*}}}*/ @@ -1612,13 +1745,13 @@ void pkgAcqMetaIndex::Failed(string const &Message, // No Release file was present so fall // back to queueing Packages files without verification // only allow going further if the user explicitly wants it - if(AllowInsecureRepositories(_("The repository '%s' does not have a Release file."), Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) + if(AllowInsecureRepositories(InsecureType::NORELEASE, Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) { // ensure old Release files are removed TransactionManager->TransactionStageRemoval(this, GetFinalFilename()); // queue without any kind of hashsum support - QueueIndexes(false); + TransactionManager->QueueIndexes(false); } } /*}}}*/ @@ -1712,6 +1845,14 @@ void pkgAcqMetaSig::Done(string const &Message, HashStringList const &Hashes, TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, MetaIndex->GetFinalFilename()); } } + else if (MetaIndex->Status != StatAuthError) + { + std::string const FinalFile = MetaIndex->GetFinalFilename(); + if (TransactionManager->IMSHit == false) + TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, FinalFile); + else + TransactionManager->TransactionStageCopy(MetaIndex, FinalFile, FinalFile); + } } /*}}}*/ void pkgAcqMetaSig::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/ @@ -1722,40 +1863,14 @@ void pkgAcqMetaSig::Failed(string const &Message,pkgAcquire::MethodConfig const if (MetaIndex->AuthPass == true && MetaIndex->CheckStopAuthentication(this, Message)) return; - string const FinalRelease = MetaIndex->GetFinalFilename(); - string const FinalReleasegpg = GetFinalFilename(); - string const FinalInRelease = TransactionManager->GetFinalFilename(); - - if (RealFileExists(FinalReleasegpg) || RealFileExists(FinalInRelease)) - { - std::string downgrade_msg; - strprintf(downgrade_msg, _("The repository '%s' is no longer signed."), - MetaIndex->Target.Description.c_str()); - if(_config->FindB("Acquire::AllowDowngradeToInsecureRepositories")) - { - // meh, the users wants to take risks (we still mark the packages - // from this repository as unauthenticated) - _error->Warning("%s", downgrade_msg.c_str()); - _error->Warning(_("This is normally not allowed, but the option " - "Acquire::AllowDowngradeToInsecureRepositories was " - "given to override it.")); - Status = StatDone; - } else { - MessageInsecureRepository(true, downgrade_msg); - if (TransactionManager->IMSHit == false) - Rename(MetaIndex->DestFile, MetaIndex->DestFile + ".FAILED"); - Item::Failed("Message: " + downgrade_msg, Cnf); - TransactionManager->AbortTransaction(); - return; - } - } - // ensures that a Release.gpg file in the lists/ is removed by the transaction TransactionManager->TransactionStageRemoval(this, DestFile); // only allow going further if the user explicitly wants it - if (AllowInsecureRepositories(_("The repository '%s' is not signed."), MetaIndex->Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) + if (AllowInsecureRepositories(InsecureType::UNSIGNED, MetaIndex->Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true) { + string const FinalRelease = MetaIndex->GetFinalFilename(); + string const FinalInRelease = TransactionManager->GetFinalFilename(); LoadLastMetaIndexParser(TransactionManager, FinalRelease, FinalInRelease); // we parse the indexes here because at this point the user wanted @@ -1764,10 +1879,12 @@ void pkgAcqMetaSig::Failed(string const &Message,pkgAcquire::MethodConfig const if (MetaIndex->VerifyVendor(Message) == false) /* expired Release files are still a problem you need extra force for */; else - MetaIndex->QueueIndexes(GoodLoad); + TransactionManager->QueueIndexes(GoodLoad); - TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, MetaIndex->GetFinalFilename()); + TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, FinalRelease); } + else if (TransactionManager->IMSHit == false) + Rename(MetaIndex->DestFile, MetaIndex->DestFile + ".FAILED"); // FIXME: this is used often (e.g. in pkgAcqIndexTrans) so refactor if (Cnf->LocalOnly == true || @@ -1791,9 +1908,7 @@ pkgAcqBaseIndex::pkgAcqBaseIndex(pkgAcquire * const Owner, void pkgAcqBaseIndex::Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/ { pkgAcquire::Item::Failed(Message, Cnf); - if (TransactionManager == nullptr || ErrorText.empty() || - TransactionManager->MetaIndexParser == nullptr || - LookupTag(Message, "FailReason") != "HashSumMismatch") + if (Status != StatAuthError) return; ErrorText.append("Release file created at: "); @@ -1819,6 +1934,9 @@ pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire * const Owner, IndexTarget const &Target) : pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL), diffs(NULL) { + // FIXME: Magic number as an upper bound on pdiffs we will reasonably acquire + ExpectedAdditionalItems = 40; + Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); Desc.Owner = this; @@ -1863,6 +1981,7 @@ void pkgAcqDiffIndex::QueueOnIMSHit() const /*{{{*/ /*}}}*/ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ { + ExpectedAdditionalItems = 0; // failing here is fine: our caller will take care of trying to // get the complete file if patching fails if(Debug) @@ -1881,6 +2000,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ HashStringList ServerHashes; unsigned long long ServerSize = 0; + auto const &posix = std::locale("C.UTF-8"); for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) { std::string tagname = *type; @@ -1892,6 +2012,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ string hash; unsigned long long size; std::stringstream ss(tmp); + ss.imbue(posix); ss >> hash >> size; if (unlikely(hash.empty() == true)) continue; @@ -1970,6 +2091,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ string hash, filename; unsigned long long size; std::stringstream ss(tmp); + ss.imbue(posix); while (ss >> hash >> size >> filename) { @@ -2028,6 +2150,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ string hash, filename; unsigned long long size; std::stringstream ss(tmp); + ss.imbue(posix); while (ss >> hash >> size >> filename) { @@ -2065,6 +2188,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ string hash, filename; unsigned long long size; std::stringstream ss(tmp); + ss.imbue(posix); // FIXME: all of pdiff supports only .gz compressed patches while (ss >> hash >> size >> filename) @@ -2139,7 +2263,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/ // calculate the size of all patches we have to get unsigned short const sizeLimitPercent = _config->FindI("Acquire::PDiffs::SizeLimit", 100); - if (sizeLimitPercent > 0 && TransactionManager->MetaIndexParser != nullptr) + if (sizeLimitPercent > 0) { unsigned long long downloadSize = std::accumulate(available_patches.begin(), available_patches.end(), 0llu, [](unsigned long long const T, DiffInfo const &I) { @@ -2246,6 +2370,7 @@ void pkgAcqDiffIndex::Failed(string const &Message,pkgAcquire::MethodConfig cons { pkgAcqBaseIndex::Failed(Message,Cnf); Status = StatDone; + ExpectedAdditionalItems = 0; if(Debug) std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << " with " << Message << std::endl @@ -2705,7 +2830,7 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc, else if (CurrentCompressionExtension == "by-hash") { NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, true); - if(unlikely(TransactionManager->MetaIndexParser == NULL || CurrentCompressionExtension.empty())) + if(unlikely(CurrentCompressionExtension.empty())) return; if (CurrentCompressionExtension != "uncompressed") {