#include <apt-pkg/pkgrecords.h>
#include <apt-pkg/gpgv.h>
+#include <algorithm>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctime>
#include <sstream>
+#include <numeric>
#include <apti18n.h>
/*}}}*/
using namespace std;
-static void printHashSumComparision(std::string const &URI, HashStringList const &Expected, HashStringList const &Actual) /*{{{*/
+static void printHashSumComparison(std::string const &URI, HashStringList const &Expected, HashStringList const &Actual) /*{{{*/
{
if (_config->FindB("Debug::Acquire::HashSumMismatch", false) == false)
return;
return _config->FindDir("Dir::State::lists") + URItoFileName(uri);
}
/*}}}*/
-static std::string GetCompressedFileName(IndexTarget const &Target, std::string const &Name, std::string const &Ext) /*{{{*/
+static std::string GetKeepCompressedFileName(std::string file, IndexTarget const &Target)/*{{{*/
{
- if (Ext.empty() || Ext == "uncompressed")
- return Name;
+ if (Target.KeepCompressed == false)
+ return file;
- // do not reverify cdrom sources as apt-cdrom may rewrite the Packages
- // file when its doing the indexcopy
- if (Target.URI.substr(0,6) == "cdrom:")
- return Name;
-
- // adjust DestFile if its compressed on disk
- if (Target.KeepCompressed == true)
- return Name + '.' + Ext;
- return Name;
+ std::string const KeepCompressedAs = Target.Option(IndexTarget::KEEPCOMPRESSEDAS);
+ if (KeepCompressedAs.empty() == false)
+ {
+ std::string const ext = KeepCompressedAs.substr(0, KeepCompressedAs.find(' '));
+ if (ext != "uncompressed")
+ file.append(".").append(ext);
+ }
+ return file;
}
/*}}}*/
static std::string GetMergeDiffsPatchFileName(std::string const &Final, std::string const &Patch)/*{{{*/
return Final + ".ed";
}
/*}}}*/
+static std::string GetExistingFilename(std::string const &File) /*{{{*/
+{
+ if (RealFileExists(File))
+ return File;
+ for (auto const &type : APT::Configuration::getCompressorExtensions())
+ {
+ std::string const Final = File + type;
+ if (RealFileExists(Final))
+ return Final;
+ }
+ return "";
+}
+ /*}}}*/
+static std::string GetDiffIndexFileName(std::string const &Name) /*{{{*/
+{
+ return Name + ".diff/Index";
+}
+ /*}}}*/
+static std::string GetDiffIndexURI(IndexTarget const &Target) /*{{{*/
+{
+ return Target.URI + ".diff/Index";
+}
+ /*}}}*/
+
+static void ReportMirrorFailureToCentral(pkgAcquire::Item const &I, std::string const &FailCode, std::string const &Details)/*{{{*/
+{
+ // we only act if a mirror was used at all
+ if(I.UsedMirror.empty())
+ return;
+#if 0
+ std::cerr << "\nReportMirrorFailure: "
+ << UsedMirror
+ << " Uri: " << DescURI()
+ << " FailCode: "
+ << FailCode << std::endl;
+#endif
+ string const report = _config->Find("Methods::Mirror::ProblemReporting",
+ "/usr/lib/apt/apt-report-mirror-failure");
+ if(!FileExists(report))
+ return;
+
+ std::vector<char const*> const Args = {
+ report.c_str(),
+ I.UsedMirror.c_str(),
+ I.DescURI().c_str(),
+ FailCode.c_str(),
+ Details.c_str(),
+ NULL
+ };
+
+ pid_t pid = ExecFork();
+ if(pid < 0)
+ {
+ _error->Error("ReportMirrorFailure Fork failed");
+ return;
+ }
+ else if(pid == 0)
+ {
+ execvp(Args[0], (char**)Args.data());
+ std::cerr << "Could not exec " << Args[0] << std::endl;
+ _exit(100);
+ }
+ if(!ExecWait(pid, "report-mirror-failure"))
+ _error->Warning("Couldn't report problem to '%s'", report.c_str());
+}
+ /*}}}*/
+
+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", 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", 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;
+}
+ /*}}}*/
+// AllowInsecureRepositories /*{{{*/
+enum class InsecureType { UNSIGNED, WEAK, NORELEASE };
+static bool TargetIsAllowedToBe(IndexTarget const &Target, InsecureType const type)
+{
+ if (_config->FindB("Acquire::AllowInsecureRepositories"))
+ return true;
-static bool AllowInsecureRepositories(metaIndex const * const MetaIndexParser, pkgAcqMetaClearSig * const TransactionManager, pkgAcquire::Item * const I) /*{{{*/
+ 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 APT_NONNULL(3, 4, 5) AllowInsecureRepositories(InsecureType const msg, std::string const &repo,
+ metaIndex const * const MetaIndexParser, pkgAcqMetaClearSig * const TransactionManager, pkgAcquire::Item * const I)
{
- if(MetaIndexParser->GetTrusted() == metaIndex::TRI_YES || _config->FindB("Acquire::AllowInsecureRepositories") == true)
+ // 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;
- _error->Error(_("Use --allow-insecure-repositories to force the update"));
+ char const * msgstr = nullptr;
+ switch (msg)
+ {
+ 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, msgstr, repo);
TransactionManager->AbortTransaction();
I->Status = pkgAcquire::Item::StatError;
return false;
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_UNSET;
+ 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
{
APT_CONST bool pkgAcqIndexDiffs::HashesRequired() const
{
- /* We don't always have the diff of the downloaded pdiff file.
- What we have for sure is hashes for the uncompressed file,
- but rred uncompresses them on the fly while parsing, so not handled here.
- Hashes are (also) checked while searching for (next) patch to apply. */
+ /* We can't check hashes of rred result as we don't know what the
+ hash of the file will be. We just know the hash of the patch(es),
+ the hash of the file they will apply on and the hash of the resulting
+ file. */
if (State == StateFetchDiff)
- return available_patches[0].download_hashes.empty() == false;
+ return true;
return false;
}
HashStringList pkgAcqIndexDiffs::GetExpectedHashes() const
we can check the rred result after all patches are applied as
we know the expected result rather than potentially apply more patches */
if (State == StateFetchDiff)
- return patch.download_hashes.empty() == false;
+ return true;
return State == StateApplyDiff;
}
HashStringList pkgAcqIndexMergeDiffs::GetExpectedHashes() const
for a hashsum mismatch to happen which helps nobody) */
bool pkgAcqTransactionItem::QueueURI(pkgAcquire::ItemDesc &Item)
{
+ if (TransactionManager->State != TransactionStarted)
+ {
+ if (_config->FindB("Debug::Acquire::Transaction", false))
+ std::clog << "Skip " << Target.URI << " as transaction was already dealt with!" << std::endl;
+ 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 && UsedMirror.empty() &&
+ 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
// Acquire::Item::GetFinalFilename and specialisations for child classes /*{{{*/
std::string pkgAcquire::Item::GetFinalFilename() const
{
+ // Beware: Desc.URI is modified by redirections
return GetFinalFileNameFromURI(Desc.URI);
}
std::string pkgAcqDiffIndex::GetFinalFilename() const
{
- // the logic we inherent from pkgAcqBaseIndex isn't what we need here
- return pkgAcquire::Item::GetFinalFilename();
+ std::string const FinalFile = GetFinalFileNameFromURI(GetDiffIndexURI(Target));
+ // we don't want recompress, so lets keep whatever we got
+ if (CurrentCompressionExtension == "uncompressed")
+ return FinalFile;
+ return FinalFile + "." + CurrentCompressionExtension;
}
std::string pkgAcqIndex::GetFinalFilename() const
{
std::string const FinalFile = GetFinalFileNameFromURI(Target.URI);
- return GetCompressedFileName(Target, FinalFile, CurrentCompressionExtension);
+ return GetKeepCompressedFileName(FinalFile, Target);
}
std::string pkgAcqMetaSig::GetFinalFilename() const
{
}
std::string pkgAcqDiffIndex::GetMetaKey() const
{
- return Target.MetaKey + ".diff/Index";
+ auto const metakey = GetDiffIndexFileName(Target.MetaKey);
+ if (CurrentCompressionExtension == "uncompressed")
+ return metakey;
+ return metakey + "." + CurrentCompressionExtension;
}
/*}}}*/
//pkgAcqTransactionItem::TransactionState and specialisations for child classes /*{{{*/
bool const Debug = _config->FindB("Debug::Acquire::Transaction", false);
switch(state)
{
+ case TransactionStarted: _error->Fatal("Item %s changed to invalid transaction start state!", Target.URI.c_str()); break;
case TransactionAbort:
if(Debug == true)
std::clog << " Cancel: " << DestFile << std::endl;
}
break;
case TransactionCommit:
- if(PartialFile != "")
+ if(PartialFile.empty() == false)
{
- if(Debug == true)
- std::clog << "mv " << PartialFile << " -> "<< DestFile << " # " << DescURI() << std::endl;
+ bool sameFile = (PartialFile == DestFile);
+ // we use symlinks on IMS-Hit to avoid copies
+ if (RealFileExists(DestFile))
+ {
+ struct stat Buf;
+ if (lstat(PartialFile.c_str(), &Buf) != -1)
+ {
+ if (S_ISLNK(Buf.st_mode) && Buf.st_size > 0)
+ {
+ char partial[Buf.st_size + 1];
+ ssize_t const sp = readlink(PartialFile.c_str(), partial, Buf.st_size);
+ if (sp == -1)
+ _error->Errno("pkgAcqTransactionItem::TransactionState-sp", _("Failed to readlink %s"), PartialFile.c_str());
+ else
+ {
+ partial[sp] = '\0';
+ sameFile = (DestFile == partial);
+ }
+ }
+ }
+ else
+ _error->Errno("pkgAcqTransactionItem::TransactionState-stat", _("Failed to stat %s"), PartialFile.c_str());
+ }
+ if (sameFile == false)
+ {
+ // ensure that even without lists-cleanup all compressions are nuked
+ std::string FinalFile = GetFinalFileNameFromURI(Target.URI);
+ if (FileExists(FinalFile))
+ {
+ if(Debug == true)
+ std::clog << "rm " << FinalFile << " # " << DescURI() << std::endl;
+ if (RemoveFile("TransactionStates-Cleanup", FinalFile) == false)
+ return false;
+ }
+ for (auto const &ext: APT::Configuration::getCompressorExtensions())
+ {
+ auto const Final = FinalFile + ext;
+ if (FileExists(Final))
+ {
+ if(Debug == true)
+ std::clog << "rm " << Final << " # " << DescURI() << std::endl;
+ if (RemoveFile("TransactionStates-Cleanup", Final) == false)
+ return false;
+ }
+ }
+ if(Debug == true)
+ std::clog << "mv " << PartialFile << " -> "<< DestFile << " # " << DescURI() << std::endl;
+ if (Rename(PartialFile, DestFile) == false)
+ return false;
+ }
+ else if(Debug == true)
+ std::clog << "keep " << PartialFile << " # " << DescURI() << std::endl;
- Rename(PartialFile, DestFile);
} else {
if(Debug == true)
std::clog << "rm " << DestFile << " # " << DescURI() << std::endl;
- unlink(DestFile.c_str());
+ if (RemoveFile("TransItem::TransactionCommit", DestFile) == false)
+ return false;
}
break;
}
switch (state)
{
+ case TransactionStarted: _error->Fatal("AcqIndex %s changed to invalid transaction start state!", Target.URI.c_str()); break;
case TransactionAbort:
if (Stage == STAGE_DECOMPRESS_AND_VERIFY)
{
// keep the compressed file, but drop the decompressed
EraseFileName.clear();
- if (PartialFile.empty() == false && flExtension(PartialFile) == "decomp")
- unlink(PartialFile.c_str());
+ if (PartialFile.empty() == false && flExtension(PartialFile) != CurrentCompressionExtension)
+ RemoveFile("TransactionAbort", PartialFile);
}
break;
case TransactionCommit:
if (EraseFileName.empty() == false)
- unlink(EraseFileName.c_str());
+ RemoveFile("AcqIndex::TransactionCommit", EraseFileName);
break;
}
return true;
switch (state)
{
+ case TransactionStarted: _error->Fatal("Item %s changed to invalid transaction start state!", Target.URI.c_str()); break;
case TransactionCommit:
break;
case TransactionAbort:
std::string const Partial = GetPartialFileNameFromURI(Target.URI);
- unlink(Partial.c_str());
+ RemoveFile("TransactionAbort", Partial);
break;
}
Status = StatDone;
DestFile = GetFinalFileNameFromURI(Target.URI);
}
+ NoActionItem(pkgAcquire * const Owner, IndexTarget const &Target, std::string const &FinalFile) :
+ pkgAcquire::Item(Owner), Target(Target)
+ {
+ Status = StatDone;
+ DestFile = FinalFile;
+ }
+};
+ /*}}}*/
+class APT_HIDDEN CleanupItem : public pkgAcqTransactionItem /*{{{*/
+/* This class ensures that a file which was configured but isn't downloaded
+ for various reasons isn't kept in an old version in the lists directory.
+ In a way its the reverse of NoActionItem as it helps with removing files
+ even if the lists-cleanup is deactivated. */
+{
+ public:
+ virtual std::string DescURI() const APT_OVERRIDE {return Target.URI;};
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE {return HashStringList();};
+
+ CleanupItem(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager, IndexTarget const &Target) :
+ pkgAcqTransactionItem(Owner, TransactionManager, Target)
+ {
+ Status = StatDone;
+ DestFile = GetFinalFileNameFromURI(Target.URI);
+ }
+ bool TransactionState(TransactionStates const state) APT_OVERRIDE
+ {
+ switch (state)
+ {
+ case TransactionStarted:
+ break;
+ case TransactionAbort:
+ break;
+ case TransactionCommit:
+ if (_config->FindB("Debug::Acquire::Transaction", false) == true)
+ std::clog << "rm " << DestFile << " # " << DescURI() << std::endl;
+ if (RemoveFile("TransItem::TransactionCommit", DestFile) == false)
+ return false;
+ break;
+ }
+ return true;
+ }
};
/*}}}*/
// Acquire::Item::Item - Constructor /*{{{*/
+class pkgAcquire::Item::Private
+{
+public:
+ std::vector<std::string> PastRedirections;
+};
APT_IGNORE_DEPRECATED_PUSH
pkgAcquire::Item::Item(pkgAcquire * const owner) :
FileSize(0), PartialSize(0), Mode(0), ID(0), Complete(false), Local(false),
- QueueCounter(0), ExpectedAdditionalItems(0), Owner(owner), d(NULL)
+ QueueCounter(0), ExpectedAdditionalItems(0), Owner(owner), d(new Private())
{
Owner->Add(this);
Status = StatIdle;
pkgAcquire::Item::~Item()
{
Owner->Remove(this);
+ delete d;
}
/*}}}*/
std::string pkgAcquire::Item::Custom600Headers() const /*{{{*/
fetch this object */
void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)
{
- if(ErrorText.empty())
- ErrorText = LookupTag(Message,"Message");
if (QueueCounter <= 1)
{
/* This indicates that the file is not available right now but might
}
string const FailReason = LookupTag(Message, "FailReason");
- if (FailReason == "MaximumSizeExceeded")
- RenameOnError(MaximumSizeExceeded);
+ enum { MAXIMUM_SIZE_EXCEEDED, HASHSUM_MISMATCH, WEAK_HASHSUMS, REDIRECTION_LOOP, OTHER } failreason = OTHER;
+ if ( FailReason == "MaximumSizeExceeded")
+ failreason = MAXIMUM_SIZE_EXCEEDED;
+ else if ( FailReason == "WeakHashSums")
+ failreason = WEAK_HASHSUMS;
+ else if (FailReason == "RedirectionLoop")
+ failreason = REDIRECTION_LOOP;
else if (Status == StatAuthError)
- RenameOnError(HashSumMismatch);
+ failreason = HASHSUM_MISMATCH;
+
+ if(ErrorText.empty())
+ {
+ std::ostringstream out;
+ switch (failreason)
+ {
+ 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 REDIRECTION_LOOP:
+ out << "Redirection loop encountered" << std::endl;
+ break;
+ case MAXIMUM_SIZE_EXCEEDED:
+ out << LookupTag(Message, "Message") << std::endl;
+ break;
+ case OTHER:
+ out << LookupTag(Message, "Message");
+ break;
+ }
+
+ if (Status == StatAuthError)
+ {
+ 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", "<none>") << std::endl;
+ }
+ }
+ ErrorText = out.str();
+ }
+
+ switch (failreason)
+ {
+ case MAXIMUM_SIZE_EXCEEDED: RenameOnError(MaximumSizeExceeded); break;
+ case HASHSUM_MISMATCH: RenameOnError(HashSumMismatch); break;
+ case WEAK_HASHSUMS: break;
+ case REDIRECTION_LOOP: break;
+ case OTHER: break;
+ }
- // report mirror failure back to LP if we actually use a mirror
if (FailReason.empty() == false)
- ReportMirrorFailure(FailReason);
+ ReportMirrorFailureToCentral(*this, FailReason, ErrorText);
else
- ReportMirrorFailure(ErrorText);
+ ReportMirrorFailureToCentral(*this, ErrorText, ErrorText);
if (QueueCounter > 1)
Status = StatIdle;
{
case HashSumMismatch:
errtext = _("Hash Sum mismatch");
- Status = StatAuthError;
- ReportMirrorFailure("HashChecksumFailure");
break;
case SizeMismatch:
errtext = _("Size mismatch");
Status = StatAuthError;
- ReportMirrorFailure("SizeFailure");
break;
case InvalidFormat:
errtext = _("Invalid file format");
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
}
/*}}}*/
// Acquire::Item::ReportMirrorFailure /*{{{*/
-void pkgAcquire::Item::ReportMirrorFailure(string const &FailCode)
+void pkgAcquire::Item::ReportMirrorFailure(std::string const &FailCode)
{
- // we only act if a mirror was used at all
- if(UsedMirror.empty())
- return;
-#if 0
- std::cerr << "\nReportMirrorFailure: "
- << UsedMirror
- << " Uri: " << DescURI()
- << " FailCode: "
- << FailCode << std::endl;
-#endif
- string report = _config->Find("Methods::Mirror::ProblemReporting",
- "/usr/lib/apt/apt-report-mirror-failure");
- if(!FileExists(report))
- return;
-
- std::vector<char const*> Args;
- Args.push_back(report.c_str());
- Args.push_back(UsedMirror.c_str());
- Args.push_back(DescURI().c_str());
- Args.push_back(FailCode.c_str());
- Args.push_back(NULL);
-
- pid_t pid = ExecFork();
- if(pid < 0)
- {
- _error->Error("ReportMirrorFailure Fork failed");
- return;
- }
- else if(pid == 0)
- {
- execvp(Args[0], (char**)Args.data());
- std::cerr << "Could not exec " << Args[0] << std::endl;
- _exit(100);
- }
- if(!ExecWait(pid, "report-mirror-failure"))
- {
- _error->Warning("Couldn't report problem to '%s'",
- _config->Find("Methods::Mirror::ProblemReporting").c_str());
- }
+ ReportMirrorFailureToCentral(*this, FailCode, FailCode);
}
/*}}}*/
std::string pkgAcquire::Item::HashSum() const /*{{{*/
return hs != NULL ? hs->toStr() : "";
}
/*}}}*/
+bool pkgAcquire::Item::IsRedirectionLoop(std::string const &NewURI) /*{{{*/
+{
+ // store can fail due to permission errors and the item will "loop" then
+ if (APT::String::Startswith(NewURI, "store:"))
+ return false;
+ if (d->PastRedirections.empty())
+ {
+ d->PastRedirections.push_back(NewURI);
+ return false;
+ }
+ auto const LastURI = std::prev(d->PastRedirections.end());
+ // redirections to the same file are a way of restarting/resheduling,
+ // individual methods will have to make sure that they aren't looping this way
+ if (*LastURI == NewURI)
+ return false;
+ if (std::find(d->PastRedirections.begin(), LastURI, NewURI) != LastURI)
+ return true;
+ d->PastRedirections.push_back(NewURI);
+ return false;
+}
+ /*}}}*/
pkgAcqTransactionItem::pkgAcqTransactionItem(pkgAcquire * const Owner, /*{{{*/
pkgAcqMetaClearSig * const transactionManager, IndexTarget const &target) :
}
/*}}}*/
+static void LoadLastMetaIndexParser(pkgAcqMetaClearSig * const TransactionManager, std::string const &FinalRelease, std::string const &FinalInRelease)/*{{{*/
+{
+ if (TransactionManager->IMSHit == true)
+ return;
+ if (RealFileExists(FinalInRelease) || RealFileExists(FinalRelease))
+ {
+ TransactionManager->LastMetaIndexParser = TransactionManager->MetaIndexParser->UnloadedClone();
+ if (TransactionManager->LastMetaIndexParser != NULL)
+ {
+ _error->PushToStack();
+ if (RealFileExists(FinalInRelease))
+ TransactionManager->LastMetaIndexParser->Load(FinalInRelease, NULL);
+ else
+ TransactionManager->LastMetaIndexParser->Load(FinalRelease, NULL);
+ // its unlikely to happen, but if what we have is bad ignore it
+ if (_error->PendingError())
+ {
+ delete TransactionManager->LastMetaIndexParser;
+ TransactionManager->LastMetaIndexParser = NULL;
+ }
+ _error->RevertToStack();
+ }
+ }
+}
+ /*}}}*/
+
// AcqMetaBase - Constructor /*{{{*/
pkgAcqMetaBase::pkgAcqMetaBase(pkgAcquire * const Owner,
pkgAcqMetaClearSig * const TransactionManager,
- std::vector<IndexTarget> const &IndexTargets,
IndexTarget const &DataTarget)
: pkgAcqTransactionItem(Owner, TransactionManager, DataTarget), d(NULL),
- IndexTargets(IndexTargets),
- AuthPass(false), IMSHit(false)
+ AuthPass(false), IMSHit(false), State(TransactionStarted)
{
}
/*}}}*/
if(_config->FindB("Debug::Acquire::Transaction", false) == true)
std::clog << "AbortTransaction: " << TransactionManager << std::endl;
+ switch (TransactionManager->State)
+ {
+ 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 committed", TransactionManager->Target.URI.c_str()); return;
+ }
+ TransactionManager->State = TransactionAbort;
+
// ensure the toplevel is in error state too
for (std::vector<pkgAcqTransactionItem*>::iterator I = Transaction.begin();
I != Transaction.end(); ++I)
{
+ if ((*I)->Status != pkgAcquire::Item::StatFetching)
+ Owner->Dequeue(*I);
(*I)->TransactionState(TransactionAbort);
}
Transaction.clear();
if(_config->FindB("Debug::Acquire::Transaction", false) == true)
std::clog << "CommitTransaction: " << this << std::endl;
+ switch (TransactionManager->State)
+ {
+ case TransactionStarted: break;
+ 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;
+
// move new files into place *and* remove files that are not
// part of the transaction but are still on disk
for (std::vector<pkgAcqTransactionItem*>::iterator I = Transaction.begin();
}
/*}}}*/
// AcqMetaBase::GenerateAuthWarning - Check gpg authentication error /*{{{*/
+/* This method is called from ::Failed handlers. If it returns true,
+ no fallback to other files or modi is performed */
bool pkgAcqMetaBase::CheckStopAuthentication(pkgAcquire::Item * const I, const std::string &Message)
{
- // FIXME: this entire function can do now that we disallow going to
- // a unauthenticated state and can cleanly rollback
-
string const Final = I->GetFinalFilename();
- if(FileExists(Final))
+ std::string const GPGError = LookupTag(Message, "Message");
+ if (FileExists(Final))
{
I->Status = StatTransientNetworkError;
- _error->Warning(_("An error occurred during the signature "
- "verification. The repository is not updated "
- "and the previous index files will be used. "
- "GPG error: %s: %s"),
- Desc.Description.c_str(),
- LookupTag(Message,"Message").c_str());
+ _error->Warning(_("An error occurred during the signature verification. "
+ "The repository is not updated and the previous index files will be used. "
+ "GPG error: %s: %s"),
+ Desc.Description.c_str(),
+ GPGError.c_str());
RunScripts("APT::Update::Auth-Failure");
return true;
} else if (LookupTag(Message,"Message").find("NODATA") != string::npos) {
/* Invalid signature file, reject (LP: #346386) (Closes: #627642) */
_error->Error(_("GPG error: %s: %s"),
- Desc.Description.c_str(),
- LookupTag(Message,"Message").c_str());
+ Desc.Description.c_str(),
+ GPGError.c_str());
I->Status = StatAuthError;
return true;
} else {
_error->Warning(_("GPG error: %s: %s"),
- Desc.Description.c_str(),
- LookupTag(Message,"Message").c_str());
+ Desc.Description.c_str(),
+ GPGError.c_str());
}
// gpgv method failed
- ReportMirrorFailure("GPGFailure");
+ ReportMirrorFailureToCentral(*this, "GPGFailure", GPGError);
return false;
}
/*}}}*/
string const FinalFile = GetFinalFilename();
struct stat Buf;
if (stat(FinalFile.c_str(),&Buf) == 0)
- Header += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+ Header += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime, false);
return Header;
}
// 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"));
+ TransactionManager->UsedMirror = I->UsedMirror;
+ }
+ else if (APT::String::Endswith(I->Desc.URI, "Release"))
+ {
+ TransactionManager->BaseURI = I->Desc.URI.substr(0, I->Desc.URI.length() - strlen("Release"));
+ TransactionManager->UsedMirror = I->UsedMirror;
+ }
+ }
+
std::string const FileName = LookupTag(Message,"Filename");
if (FileName != I->DestFile && RealFileExists(I->DestFile) == false)
{
if (RealFileExists(FinalFile) && Hashes.VerifyFile(FinalFile) == true)
{
IMSHit = true;
- unlink(I->DestFile.c_str());
+ RemoveFile("CheckDownloadDone", I->DestFile);
}
}
{
// 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();
}
// 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)
{
FinalInRelease = FinalFile.substr(0, FinalFile.length() - strlen("Release")) + "InRelease";
FinalRelease = FinalFile;
}
- if (RealFileExists(FinalInRelease) || RealFileExists(FinalRelease))
- {
- TransactionManager->LastMetaIndexParser = TransactionManager->MetaIndexParser->UnloadedClone();
- if (TransactionManager->LastMetaIndexParser != NULL)
- {
- _error->PushToStack();
- if (RealFileExists(FinalInRelease))
- TransactionManager->LastMetaIndexParser->Load(FinalInRelease, NULL);
- else
- TransactionManager->LastMetaIndexParser->Load(FinalRelease, NULL);
- // its unlikely to happen, but if what we have is bad ignore it
- if (_error->PendingError())
- {
- delete TransactionManager->LastMetaIndexParser;
- TransactionManager->LastMetaIndexParser = NULL;
- }
- _error->RevertToStack();
- }
- }
+ 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;
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;
- for (std::vector <IndexTarget>::const_iterator Target = IndexTargets.begin();
- Target != IndexTargets.end();
- ++Target)
- {
- bool trypdiff = _config->FindB("Acquire::PDiffs", true);
- if (verify == true)
+ std::set<std::string> 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())
{
- if (TransactionManager->MetaIndexParser->Exists(Target->MetaKey) == false)
+ 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 (hasReleaseFile && Target.Option(IndexTarget::ARCHITECTURE) == "all")
+ {
+ if (TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(Target) == false)
+ {
+ new CleanupItem(Owner, TransactionManager, Target);
+ continue;
+ }
+ }
+
+ bool trypdiff = Target.OptionBool(IndexTarget::PDIFFS);
+ if (hasReleaseFile == true)
+ {
+ 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);
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;
- }
+ std::string const &arch = Target.Option(IndexTarget::ARCHITECTURE);
+ if (arch.empty() == false)
+ {
+ if (TransactionManager->MetaIndexParser->IsArchitectureSupported(arch) == false)
+ {
+ 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());
+ 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 (hasHashes == true && TransactionManager->MetaIndexParser->IsArchitectureSupported("*undefined*") == false)
+ {
+ new CleanupItem(Owner, TransactionManager, Target);
+ continue;
+ }
+ }
- if (RealFileExists(GetFinalFileNameFromURI(Target->URI)))
+ 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 if (verify)
{
- if (TransactionManager->LastMetaIndexParser != NULL)
+ auto const hashes = GetExpectedHashesFor(Target.MetaKey);
+ if (hashes.empty() == false)
{
- HashStringList const newFile = GetExpectedHashesFromFor(TransactionManager->MetaIndexParser, Target->MetaKey);
- HashStringList const oldFile = GetExpectedHashesFromFor(TransactionManager->LastMetaIndexParser, Target->MetaKey);
- if (newFile == oldFile)
+ if (hashes.usable() == false && TargetIsAllowedToBe(TransactionManager->Target, InsecureType::WEAK) == false)
{
- // we have the file already, no point in trying to acquire it again
- new NoActionItem(Owner, *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());
+ 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);
+ targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY));
continue;
}
}
- else if (TransactionManager->IMSHit == true)
+ }
+
+ // autoselect the compression method
+ std::vector<std::string> 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(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);
+ bool useByHash = false;
+ if(useByHashConf == "force")
+ useByHash = true;
+ else
+ useByHash = StringToBool(useByHashConf) == true && metaBaseSupportsByHash;
+ if (useByHash == true)
+ os << "by-hash ";
+ std::copy(types.begin(), types.end()-1, std::ostream_iterator<std::string>(os, " "));
+ os << *types.rbegin();
+ Target.Options["COMPRESSIONTYPES"] = os.str();
+ }
+ else
+ Target.Options["COMPRESSIONTYPES"].clear();
+
+ 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
+ if (TransactionManager->IMSHit == true)
+ ;
+ else if (TransactionManager->LastMetaIndexParser != NULL)
{
- // we have the file already, no point in trying to acquire it again
- new NoActionItem(Owner, *Target);
- continue;
+ // 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);
+ if (newFile != oldFile)
+ filename.clear();
}
+ else
+ filename.clear();
}
else
trypdiff = false; // no file to patch
+ if (filename.empty() == false)
+ {
+ new NoActionItem(Owner, Target, filename);
+ std::string const idxfilename = GetFinalFileNameFromURI(GetDiffIndexURI(Target));
+ if (FileExists(idxfilename))
+ new NoActionItem(Owner, Target, idxfilename);
+ targetsSeen.emplace(Target.Option(IndexTarget::CREATED_BY));
+ continue;
+ }
+
// check if we have patches available
- trypdiff &= TransactionManager->MetaIndexParser->Exists(Target->MetaKey + ".diff/Index");
+ 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);
}
- // if we have no file to patch, no point in trying
- trypdiff &= RealFileExists(GetFinalFileNameFromURI(Target->URI));
// 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")
Transformed = "experimental";
}
- pos = Transformed.rfind('/');
+ auto pos = Transformed.rfind('/');
if (pos != string::npos)
{
Transformed = Transformed.substr(0, pos);
TransactionManager->LastMetaIndexParser->GetDate() > TransactionManager->MetaIndexParser->GetDate())
{
TransactionManager->IMSHit = true;
- unlink(DestFile.c_str());
+ RemoveFile("VerifyVendor", DestFile);
PartialFile = DestFile = GetFinalFilename();
// load the 'old' file in the 'new' one instead of flipping pointers as
// the new one isn't owned by us, while the old one is so cleanup would be confused.
pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire * const Owner, /*{{{*/
IndexTarget const &ClearsignedTarget,
IndexTarget const &DetachedDataTarget, IndexTarget const &DetachedSigTarget,
- std::vector<IndexTarget> 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<decltype(ExpectedAdditionalItems)>::max();
TransactionManager->Add(this);
}
/*}}}*/
return Header;
}
/*}}}*/
-bool pkgAcqMetaClearSig::VerifyDone(std::string const &Message,
+void pkgAcqMetaClearSig::Finished() /*{{{*/
+{
+ if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+ std::clog << "Finished: " << DestFile <<std::endl;
+ if(TransactionManager->State == TransactionStarted &&
+ TransactionManager->TransactionHasError() == false)
+ TransactionManager->CommitTransaction();
+}
+ /*}}}*/
+bool pkgAcqMetaClearSig::VerifyDone(std::string const &Message, /*{{{*/
pkgAcquire::MethodConfig const * const Cnf)
{
Item::VerifyDone(Message, Cnf);
return true;
}
+ /*}}}*/
// pkgAcqMetaClearSig::Done - We got a file /*{{{*/
void pkgAcqMetaClearSig::Done(std::string const &Message,
HashStringList const &Hashes,
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)
+ if (Status == StatAuthError || Status == StatTransientNetworkError)
{
- // if we expected a ClearTextSignature (InRelease) and got a file,
- // but it wasn't valid we end up here (see VerifyDone).
+ // if we expected a ClearTextSignature (InRelease) but got a network
+ // error or got a file, but it wasn't valid, we end up here (see VerifyDone).
// As these is usually called by web-portals we do not try Release/Release.gpg
// as this is gonna fail anyway and instead abort our try (LP#346386)
TransactionManager->AbortTransaction();
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;
- _error->Warning(_("The data from '%s' is not signed. Packages "
- "from that repository can not be authenticated."),
- ClearsignedTarget.Description.c_str());
-
- // No Release file was present, or verification failed, so fall
- // back to queueing Packages files without verification
- // only allow going further if the users explicitely wants it
- if(AllowInsecureRepositories(TransactionManager->MetaIndexParser, TransactionManager, this) == true)
+ if(AllowInsecureRepositories(InsecureType::UNSIGNED, Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true)
{
Status = StatDone;
string const FinalInRelease = GetFinalFilename();
Rename(DestFile, PartialRelease);
TransactionManager->TransactionStageCopy(this, PartialRelease, FinalRelease);
-
- if (RealFileExists(FinalReleasegpg) || RealFileExists(FinalInRelease))
- {
- // open the last Release if we have it
- if (TransactionManager->IMSHit == false)
- {
- TransactionManager->LastMetaIndexParser = TransactionManager->MetaIndexParser->UnloadedClone();
- if (TransactionManager->LastMetaIndexParser != NULL)
- {
- _error->PushToStack();
- if (RealFileExists(FinalInRelease))
- TransactionManager->LastMetaIndexParser->Load(FinalInRelease, NULL);
- else
- TransactionManager->LastMetaIndexParser->Load(FinalRelease, NULL);
- // its unlikely to happen, but if what we have is bad ignore it
- if (_error->PendingError())
- {
- delete TransactionManager->LastMetaIndexParser;
- TransactionManager->LastMetaIndexParser = NULL;
- }
- _error->RevertToStack();
- }
- }
- }
+ LoadLastMetaIndexParser(TransactionManager, FinalRelease, FinalInRelease);
// we parse the indexes here because at this point the user wanted
// a repository that may potentially harm him
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);
}
}
}
pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire * const Owner, /*{{{*/
pkgAcqMetaClearSig * const TransactionManager,
IndexTarget const &DataTarget,
- IndexTarget const &DetachedSigTarget,
- vector<IndexTarget> 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)
Desc.Owner = this;
Desc.ShortDesc = DataTarget.ShortDesc;
Desc.URI = DataTarget.URI;
-
- // we expect more item
- ExpectedAdditionalItems = IndexTargets.size();
QueueURI(Desc);
}
/*}}}*/
pkgAcquire::Item::Failed(Message, Cnf);
Status = StatDone;
- _error->Warning(_("The repository '%s' does not have a Release file. "
- "This is deprecated, please contact the owner of the "
- "repository."), Target.Description.c_str());
-
// No Release file was present so fall
// back to queueing Packages files without verification
- // only allow going further if the users explicitely wants it
- if(AllowInsecureRepositories(TransactionManager->MetaIndexParser, TransactionManager, this) == true)
+ // only allow going further if the user explicitly wants it
+ 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);
}
}
/*}}}*/
-void pkgAcqMetaIndex::Finished() /*{{{*/
-{
- if(_config->FindB("Debug::Acquire::Transaction", false) == true)
- std::clog << "Finished: " << DestFile <<std::endl;
- if(TransactionManager != NULL &&
- TransactionManager->TransactionHasError() == false)
- TransactionManager->CommitTransaction();
-}
- /*}}}*/
std::string pkgAcqMetaIndex::DescURI() const /*{{{*/
{
return Target.URI;
// remove any partial downloaded sig-file in partial/.
// it may confuse proxies and is too small to warrant a
// partial download anyway
- unlink(DestFile.c_str());
+ RemoveFile("pkgAcqMetaSig", DestFile);
// set the TransactionManager
if(_config->FindB("Debug::Acquire::Transaction", false) == true)
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)/*{{{*/
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 {
- _error->Error("%s", downgrade_msg.c_str());
- if (TransactionManager->IMSHit == false)
- Rename(MetaIndex->DestFile, MetaIndex->DestFile + ".FAILED");
- Item::Failed("Message: " + downgrade_msg, Cnf);
- TransactionManager->AbortTransaction();
- return;
- }
- }
- else
- _error->Warning(_("The data from '%s' is not signed. Packages "
- "from that repository can not be authenticated."),
- MetaIndex->Target.Description.c_str());
-
// ensures that a Release.gpg file in the lists/ is removed by the transaction
TransactionManager->TransactionStageRemoval(this, DestFile);
- // only allow going further if the users explicitely wants it
- if(AllowInsecureRepositories(TransactionManager->MetaIndexParser, TransactionManager, this) == true)
+ // only allow going further if the user explicitly wants it
+ if (AllowInsecureRepositories(InsecureType::UNSIGNED, MetaIndex->Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true)
{
- if (RealFileExists(FinalReleasegpg) || RealFileExists(FinalInRelease))
- {
- // open the last Release if we have it
- if (TransactionManager->IMSHit == false)
- {
- TransactionManager->LastMetaIndexParser = TransactionManager->MetaIndexParser->UnloadedClone();
- if (TransactionManager->LastMetaIndexParser != NULL)
- {
- _error->PushToStack();
- if (RealFileExists(FinalInRelease))
- TransactionManager->LastMetaIndexParser->Load(FinalInRelease, NULL);
- else
- TransactionManager->LastMetaIndexParser->Load(FinalRelease, NULL);
- // its unlikely to happen, but if what we have is bad ignore it
- if (_error->PendingError())
- {
- delete TransactionManager->LastMetaIndexParser;
- TransactionManager->LastMetaIndexParser = NULL;
- }
- _error->RevertToStack();
- }
- }
- }
+ 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
// a repository that may potentially harm him
- if (TransactionManager->MetaIndexParser->Load(MetaIndex->DestFile, &ErrorText) == false || MetaIndex->VerifyVendor(Message) == false)
+ bool const GoodLoad = TransactionManager->MetaIndexParser->Load(MetaIndex->DestFile, &ErrorText);
+ if (MetaIndex->VerifyVendor(Message) == false)
/* expired Release files are still a problem you need extra force for */;
else
- MetaIndex->QueueIndexes(true);
+ 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 ||
IndexTarget const &Target)
: pkgAcqTransactionItem(Owner, TransactionManager, Target), d(NULL)
{
+}
+ /*}}}*/
+void pkgAcqBaseIndex::Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/
+{
+ pkgAcquire::Item::Failed(Message, Cnf);
+ if (Status != StatAuthError)
+ return;
+
+ ErrorText.append("Release file created at: ");
+ auto const timespec = TransactionManager->MetaIndexParser->GetDate();
+ if (timespec == 0)
+ ErrorText.append("<unknown>");
+ else
+ ErrorText.append(TimeRFC1123(timespec, true));
+ ErrorText.append("\n");
}
/*}}}*/
pkgAcqBaseIndex::~pkgAcqBaseIndex() {}
pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire * const Owner,
pkgAcqMetaClearSig * const TransactionManager,
IndexTarget const &Target)
- : pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL), diffs(NULL)
+ : pkgAcqIndex(Owner, TransactionManager, Target, true), 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;
- Desc.Description = Target.Description + ".diff/Index";
- Desc.ShortDesc = Target.ShortDesc;
- Desc.URI = Target.URI + ".diff/Index";
-
- DestFile = GetPartialFileNameFromURI(Desc.URI);
+ CompressionExtensions.clear();
+ {
+ std::vector<std::string> types = APT::Configuration::getCompressionTypes();
+ if (types.empty() == false)
+ {
+ std::ostringstream os;
+ std::copy_if(types.begin(), types.end()-1, std::ostream_iterator<std::string>(os, " "), [&](std::string const type) {
+ if (type == "uncompressed")
+ return true;
+ return TransactionManager->MetaIndexParser->Exists(GetDiffIndexFileName(Target.MetaKey) + '.' + type);
+ });
+ os << *types.rbegin();
+ CompressionExtensions = os.str();
+ }
+ }
+ if (Target.Option(IndexTarget::COMPRESSIONTYPES).find("by-hash") != std::string::npos)
+ CompressionExtensions = "by-hash " + CompressionExtensions;
+ Init(GetDiffIndexURI(Target), GetDiffIndexFileName(Target.Description), Target.ShortDesc);
if(Debug)
std::clog << "pkgAcqDiffIndex: " << Desc.URI << std::endl;
-
- QueueURI(Desc);
-}
- /*}}}*/
-// AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
-// ---------------------------------------------------------------------
-/* The only header we use is the last-modified header. */
-string pkgAcqDiffIndex::Custom600Headers() const
-{
- string const Final = GetFinalFilename();
-
- if(Debug)
- std::clog << "Custom600Header-IMS: " << Final << std::endl;
-
- struct stat Buf;
- if (stat(Final.c_str(),&Buf) != 0)
- return "\nIndex-File: true";
-
- return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
}
/*}}}*/
void pkgAcqDiffIndex::QueueOnIMSHit() const /*{{{*/
new pkgAcqIndexDiffs(Owner, TransactionManager, Target);
}
/*}}}*/
+static bool RemoveFileForBootstrapLinking(bool const Debug, std::string const &For, std::string const &Boot)/*{{{*/
+{
+ if (FileExists(Boot) && RemoveFile("Bootstrap-linking", Boot) == false)
+ {
+ if (Debug)
+ std::clog << "Bootstrap-linking for patching " << For
+ << " by removing stale " << Boot << " failed!" << std::endl;
+ return false;
+ }
+ return true;
+}
+ /*}}}*/
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)
std::clog << "pkgAcqDiffIndex::ParseIndexDiff() " << IndexDiffFile
<< std::endl;
- FileFd Fd(IndexDiffFile,FileFd::ReadOnly);
+ FileFd Fd(IndexDiffFile, FileFd::ReadOnly, FileFd::Extension);
pkgTagFile TF(&Fd);
- if (_error->PendingError() == true)
+ if (Fd.IsOpen() == false || Fd.Failed())
return false;
pkgTagSection Tags;
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;
string hash;
unsigned long long size;
std::stringstream ss(tmp);
+ ss.imbue(posix);
ss >> hash >> size;
if (unlikely(hash.empty() == true))
continue;
if (Debug == true)
{
std::clog << "pkgAcqDiffIndex: " << IndexDiffFile << ": Index has different hashes than parser, probably older, so fail pdiffing" << std::endl;
- printHashSumComparision(CurrentPackagesFile, ServerHashes, TargetFileHashes);
+ printHashSumComparison(CurrentPackagesFile, ServerHashes, TargetFileHashes);
}
return false;
}
LocalHashes = GetExpectedHashesFromFor(TransactionManager->LastMetaIndexParser, Target.MetaKey);
if (LocalHashes.usable() == false)
{
- FileFd fd(CurrentPackagesFile, FileFd::ReadOnly);
+ FileFd fd(CurrentPackagesFile, FileFd::ReadOnly, FileFd::Auto);
Hashes LocalHashesCalc(ServerHashes);
LocalHashesCalc.AddFD(fd);
LocalHashes = LocalHashesCalc.GetHashStringList();
std::clog << "Server-Current: " << ServerHashes.find(NULL)->toStr() << " and we start at "
<< CurrentPackagesFile << " " << LocalHashes.FileSize() << " " << LocalHashes.find(NULL)->toStr() << std::endl;
+ // historically, older hashes have more info than newer ones, so start
+ // collecting with older ones first to avoid implementing complicated
+ // information merging techniques… a failure is after all always
+ // recoverable with a complete file and hashes aren't changed that often.
+ std::vector<char const *> types;
+ for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+ types.push_back(*type);
+
// parse all of (provided) history
vector<DiffInfo> available_patches;
bool firstAcceptedHashes = true;
- for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+ for (auto type = types.crbegin(); type != types.crend(); ++type)
{
if (LocalHashes.find(*type) == NULL)
continue;
string hash, filename;
unsigned long long size;
std::stringstream ss(tmp);
+ ss.imbue(posix);
while (ss >> hash >> size >> filename)
{
return false;
}
- for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+ for (auto type = types.crbegin(); type != types.crend(); ++type)
{
if (LocalHashes.find(*type) == NULL)
continue;
string hash, filename;
unsigned long long size;
std::stringstream ss(tmp);
+ ss.imbue(posix);
while (ss >> hash >> size >> filename)
{
}
}
- for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+ for (auto type = types.crbegin(); type != types.crend(); ++type)
{
std::string tagname = *type;
tagname.append("-Download");
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)
return false;
}
+ for (auto const &patch: available_patches)
+ if (patch.result_hashes.usable() == false ||
+ patch.patch_hashes.usable() == false ||
+ patch.download_hashes.usable() == false)
+ {
+ if (Debug)
+ std::clog << "pkgAcqDiffIndex: " << IndexDiffFile << ": provides no usable hashes for " << patch.file
+ << " so fallback to complete download" << std::endl;
+ return false;
+ }
+
// patching with too many files is rather slow compared to a fast download
unsigned long const fileLimit = _config->FindI("Acquire::PDiffs::FileLimit", 0);
if (fileLimit != 0 && fileLimit < available_patches.size())
}
// calculate the size of all patches we have to get
- // note that all sizes are uncompressed, while we download compressed files
- unsigned long long patchesSize = 0;
- for (std::vector<DiffInfo>::const_iterator cur = available_patches.begin();
- cur != available_patches.end(); ++cur)
- patchesSize += cur->patch_hashes.FileSize();
- unsigned long long const sizeLimit = ServerSize * _config->FindI("Acquire::PDiffs::SizeLimit", 100);
- if (sizeLimit > 0 && (sizeLimit/100) < patchesSize)
- {
- if (Debug)
- std::clog << "Need " << patchesSize << " bytes (Limit is " << sizeLimit/100
- << ") so fallback to complete download" << std::endl;
- return false;
+ unsigned short const sizeLimitPercent = _config->FindI("Acquire::PDiffs::SizeLimit", 100);
+ if (sizeLimitPercent > 0)
+ {
+ unsigned long long downloadSize = std::accumulate(available_patches.begin(),
+ available_patches.end(), 0llu, [](unsigned long long const T, DiffInfo const &I) {
+ return T + I.download_hashes.FileSize();
+ });
+ if (downloadSize != 0)
+ {
+ unsigned long long downloadSizeIdx = 0;
+ auto const types = VectorizeString(Target.Option(IndexTarget::COMPRESSIONTYPES), ' ');
+ for (auto const &t : types)
+ {
+ std::string MetaKey = Target.MetaKey;
+ if (t != "uncompressed")
+ MetaKey += '.' + t;
+ HashStringList const hsl = GetExpectedHashesFor(MetaKey);
+ if (unlikely(hsl.usable() == false))
+ continue;
+ downloadSizeIdx = hsl.FileSize();
+ break;
+ }
+ unsigned long long const sizeLimit = downloadSizeIdx * sizeLimitPercent;
+ if ((sizeLimit/100) < downloadSize)
+ {
+ if (Debug)
+ std::clog << "Need " << downloadSize << " compressed bytes (Limit is " << (sizeLimit/100) << ", "
+ << "original is " << downloadSizeIdx << ") so fallback to complete download" << std::endl;
+ return false;
+ }
+ }
}
// we have something, queue the diffs
pdiff_merge = (precedence != "merged");
}
+ // clean the plate
+ {
+ std::string const Final = GetExistingFilename(CurrentPackagesFile);
+ if (unlikely(Final.empty())) // because we wouldn't be called in such a case
+ return false;
+ std::string const PartialFile = GetPartialFileNameFromURI(Target.URI);
+ std::string const PatchedFile = GetKeepCompressedFileName(PartialFile + "-patched", Target);
+ if (RemoveFileForBootstrapLinking(Debug, CurrentPackagesFile, PartialFile) == false ||
+ RemoveFileForBootstrapLinking(Debug, CurrentPackagesFile, PatchedFile) == false)
+ return false;
+ for (auto const &ext : APT::Configuration::getCompressorExtensions())
+ {
+ if (RemoveFileForBootstrapLinking(Debug, CurrentPackagesFile, PartialFile + ext) == false ||
+ RemoveFileForBootstrapLinking(Debug, CurrentPackagesFile, PatchedFile + ext) == false)
+ return false;
+ }
+ std::string const Ext = Final.substr(CurrentPackagesFile.length());
+ std::string const Partial = PartialFile + Ext;
+ if (symlink(Final.c_str(), Partial.c_str()) != 0)
+ {
+ if (Debug)
+ std::clog << "Bootstrap-linking for patching " << CurrentPackagesFile
+ << " by linking " << Final << " to " << Partial << " failed!" << std::endl;
+ return false;
+ }
+ }
+
if (pdiff_merge == false)
new pkgAcqIndexDiffs(Owner, TransactionManager, Target, available_patches);
else
/*}}}*/
void pkgAcqDiffIndex::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/
{
- Item::Failed(Message,Cnf);
+ if (CommonFailed(GetDiffIndexURI(Target), GetDiffIndexFileName(Target.Description), Message, Cnf))
+ return;
+
Status = StatDone;
+ ExpectedAdditionalItems = 0;
if(Debug)
std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << " with " << Message << std::endl
: pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL),
available_patches(diffs)
{
- DestFile = GetPartialFileNameFromURI(Target.URI);
+ DestFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI), Target);
Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
if(available_patches.empty() == true)
{
// we are done (yeah!), check hashes against the final file
- DestFile = GetFinalFileNameFromURI(Target.URI);
+ DestFile = GetKeepCompressedFileName(GetFinalFileNameFromURI(Target.URI), Target);
Finish(true);
}
else
{
- // patching needs to be bootstrapped with the 'old' version
- std::string const PartialFile = GetPartialFileNameFromURI(Target.URI);
- if (RealFileExists(PartialFile) == false)
- {
- if (symlink(GetFinalFilename().c_str(), PartialFile.c_str()) != 0)
- {
- Failed("Link creation of " + PartialFile + " to " + GetFinalFilename() + " failed", NULL);
- return;
- }
- }
-
- // get the next diff
State = StateFetchDiff;
QueueNextDiff();
}
/*}}}*/
void pkgAcqIndexDiffs::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/
{
- Item::Failed(Message,Cnf);
+ pkgAcqBaseIndex::Failed(Message,Cnf);
Status = StatDone;
+ DestFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI), Target);
if(Debug)
std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << " with " << Message << std::endl
- << "Falling back to normal index file acquire" << std::endl;
- DestFile = GetPartialFileNameFromURI(Target.URI);
+ << "Falling back to normal index file acquire " << std::endl;
RenameOnError(PDiffError);
std::string const patchname = GetDiffsPatchFileName(DestFile);
if (RealFileExists(patchname))
- rename(patchname.c_str(), std::string(patchname + ".FAILED").c_str());
+ Rename(patchname, patchname + ".FAILED");
+ std::string const UnpatchedFile = GetExistingFilename(GetPartialFileNameFromURI(Target.URI));
+ if (UnpatchedFile.empty() == false && FileExists(UnpatchedFile))
+ Rename(UnpatchedFile, UnpatchedFile + ".FAILED");
new pkgAcqIndex(Owner, TransactionManager, Target);
Finish();
}
// the file will be cleaned
if(allDone)
{
- TransactionManager->TransactionStageCopy(this, DestFile, GetFinalFilename());
+ std::string const Final = GetKeepCompressedFileName(GetFinalFilename(), Target);
+ TransactionManager->TransactionStageCopy(this, DestFile, Final);
// this is for the "real" finish
Complete = true;
std::clog << "\n\nallDone: " << DestFile << "\n" << std::endl;
return;
}
+ else
+ DestFile.clear();
if(Debug)
std::clog << "Finishing: " << Desc.URI << std::endl;
bool pkgAcqIndexDiffs::QueueNextDiff() /*{{{*/
{
// calc sha1 of the just patched file
- std::string const FinalFile = GetPartialFileNameFromURI(Target.URI);
-
- if(!FileExists(FinalFile))
+ std::string const PartialFile = GetExistingFilename(GetPartialFileNameFromURI(Target.URI));
+ if(unlikely(PartialFile.empty()))
{
- Failed("Message: No FinalFile " + FinalFile + " available", NULL);
+ Failed("Message: The file " + GetPartialFileNameFromURI(Target.URI) + " isn't available", NULL);
return false;
}
- FileFd fd(FinalFile, FileFd::ReadOnly);
+ FileFd fd(PartialFile, FileFd::ReadOnly, FileFd::Extension);
Hashes LocalHashesCalc;
LocalHashesCalc.AddFD(fd);
HashStringList const LocalHashes = LocalHashesCalc.GetHashStringList();
if(Debug)
- std::clog << "QueueNextDiff: " << FinalFile << " (" << LocalHashes.find(NULL)->toStr() << ")" << std::endl;
+ std::clog << "QueueNextDiff: " << PartialFile << " (" << LocalHashes.find(NULL)->toStr() << ")" << std::endl;
HashStringList const TargetFileHashes = GetExpectedHashesFor(Target.MetaKey);
if (unlikely(LocalHashes.usable() == false || TargetFileHashes.usable() == false))
{
- Failed("Local/Expected hashes are not usable", NULL);
+ Failed("Local/Expected hashes are not usable for " + PartialFile, NULL);
return false;
}
-
// final file reached before all patches are applied
if(LocalHashes == TargetFileHashes)
{
// remove all patches until the next matching patch is found
// this requires the Index file to be ordered
- for(vector<DiffInfo>::iterator I = available_patches.begin();
- available_patches.empty() == false &&
- I != available_patches.end() &&
- I->result_hashes != LocalHashes;
- ++I)
- {
- available_patches.erase(I);
- }
+ available_patches.erase(available_patches.begin(),
+ std::find_if(available_patches.begin(), available_patches.end(), [&](DiffInfo const &I) {
+ return I.result_hashes == LocalHashes;
+ }));
// error checking and falling back if no patch was found
if(available_patches.empty() == true)
{
- Failed("No patches left to reach target", NULL);
+ Failed("No patches left to reach target for " + PartialFile, NULL);
return false;
}
// queue the right diff
Desc.URI = Target.URI + ".diff/" + available_patches[0].file + ".gz";
Desc.Description = Description + " " + available_patches[0].file + string(".pdiff");
- DestFile = GetPartialFileNameFromURI(Target.URI + ".diff/" + available_patches[0].file);
+ DestFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI + ".diff/" + available_patches[0].file), Target);
if(Debug)
std::clog << "pkgAcqIndexDiffs::QueueNextDiff(): " << Desc.URI << std::endl;
void pkgAcqIndexDiffs::Done(string const &Message, HashStringList const &Hashes, /*{{{*/
pkgAcquire::MethodConfig const * const Cnf)
{
- if(Debug)
+ if (Debug)
std::clog << "pkgAcqIndexDiffs::Done(): " << Desc.URI << std::endl;
Item::Done(Message, Hashes, Cnf);
- std::string const FinalFile = GetPartialFileNameFromURI(Target.URI);
- std::string const PatchFile = GetDiffsPatchFileName(FinalFile);
-
- // success in downloading a diff, enter ApplyDiff state
- if(State == StateFetchDiff)
- {
- Rename(DestFile, PatchFile);
-
- if(Debug)
- std::clog << "Sending to rred method: " << FinalFile << std::endl;
-
- State = StateApplyDiff;
- Local = true;
- Desc.URI = "rred:" + FinalFile;
- QueueURI(Desc);
- SetActiveSubprocess("rred");
- return;
- }
+ std::string const UncompressedUnpatchedFile = GetPartialFileNameFromURI(Target.URI);
+ std::string const UnpatchedFile = GetExistingFilename(UncompressedUnpatchedFile);
+ std::string const PatchFile = GetDiffsPatchFileName(UnpatchedFile);
+ std::string const PatchedFile = GetKeepCompressedFileName(UncompressedUnpatchedFile, Target);
- // success in download/apply a diff, queue next (if needed)
- if(State == StateApplyDiff)
+ switch (State)
{
- // remove the just applied patch
- available_patches.erase(available_patches.begin());
- unlink(PatchFile.c_str());
-
- // move into place
- if(Debug)
- {
- std::clog << "Moving patched file in place: " << std::endl
- << DestFile << " -> " << FinalFile << std::endl;
- }
- Rename(DestFile,FinalFile);
- chmod(FinalFile.c_str(),0644);
-
- // see if there is more to download
- if(available_patches.empty() == false) {
- new pkgAcqIndexDiffs(Owner, TransactionManager, Target,
- available_patches);
- return Finish();
- } else
- // update
- DestFile = FinalFile;
- return Finish(true);
+ // success in downloading a diff, enter ApplyDiff state
+ case StateFetchDiff:
+ Rename(DestFile, PatchFile);
+ DestFile = GetKeepCompressedFileName(UncompressedUnpatchedFile + "-patched", Target);
+ if(Debug)
+ std::clog << "Sending to rred method: " << UnpatchedFile << std::endl;
+ State = StateApplyDiff;
+ Local = true;
+ Desc.URI = "rred:" + UnpatchedFile;
+ QueueURI(Desc);
+ SetActiveSubprocess("rred");
+ return;
+ // success in download/apply a diff, queue next (if needed)
+ case StateApplyDiff:
+ // remove the just applied patch and base file
+ available_patches.erase(available_patches.begin());
+ RemoveFile("pkgAcqIndexDiffs::Done", PatchFile);
+ RemoveFile("pkgAcqIndexDiffs::Done", UnpatchedFile);
+ if(Debug)
+ std::clog << "Moving patched file in place: " << std::endl
+ << DestFile << " -> " << PatchedFile << std::endl;
+ Rename(DestFile, PatchedFile);
+
+ // see if there is more to download
+ if(available_patches.empty() == false)
+ {
+ new pkgAcqIndexDiffs(Owner, TransactionManager, Target, available_patches);
+ Finish();
+ } else {
+ DestFile = PatchedFile;
+ Finish(true);
+ }
+ return;
}
}
/*}}}*/
if(State != StateApplyDiff)
return pkgAcqBaseIndex::Custom600Headers();
std::ostringstream patchhashes;
- HashStringList const ExpectedHashes = available_patches[0].patch_hashes;
- for (HashStringList::const_iterator hs = ExpectedHashes.begin(); hs != ExpectedHashes.end(); ++hs)
- patchhashes << "\nPatch-0-" << hs->HashType() << "-Hash: " << hs->HashValue();
+ for (auto && hs : available_patches[0].result_hashes)
+ patchhashes << "\nStart-" << hs.HashType() << "-Hash: " << hs.HashValue();
+ for (auto && hs : available_patches[0].patch_hashes)
+ patchhashes << "\nPatch-0-" << hs.HashType() << "-Hash: " << hs.HashValue();
patchhashes << pkgAcqBaseIndex::Custom600Headers();
return patchhashes.str();
}
Desc.Owner = this;
Description = Target.Description;
Desc.ShortDesc = Target.ShortDesc;
-
Desc.URI = Target.URI + ".diff/" + patch.file + ".gz";
- Desc.Description = Description + " " + patch.file + string(".pdiff");
-
- DestFile = GetPartialFileNameFromURI(Target.URI + ".diff/" + patch.file);
+ Desc.Description = Description + " " + patch.file + ".pdiff";
+ DestFile = GetPartialFileNameFromURI(Desc.URI);
if(Debug)
std::clog << "pkgAcqIndexMergeDiffs: " << Desc.URI << std::endl;
if(Debug)
std::clog << "pkgAcqIndexMergeDiffs failed: " << Desc.URI << " with " << Message << std::endl;
- Item::Failed(Message,Cnf);
+ pkgAcqBaseIndex::Failed(Message,Cnf);
Status = StatDone;
// check if we are the first to fail, otherwise we are done here
for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
I != allPatches->end(); ++I)
if ((*I)->State == StateErrorDiff)
+ {
+ State = StateErrorDiff;
return;
+ }
// first failure means we should fallback
State = StateErrorDiff;
if (Debug)
std::clog << "Falling back to normal index file acquire" << std::endl;
- DestFile = GetPartialFileNameFromURI(Target.URI);
RenameOnError(PDiffError);
- std::string const patchname = GetMergeDiffsPatchFileName(DestFile, patch.file);
- if (RealFileExists(patchname))
- rename(patchname.c_str(), std::string(patchname + ".FAILED").c_str());
+ if (RealFileExists(DestFile))
+ Rename(DestFile, DestFile + ".FAILED");
+ std::string const UnpatchedFile = GetExistingFilename(GetPartialFileNameFromURI(Target.URI));
+ if (UnpatchedFile.empty() == false && FileExists(UnpatchedFile))
+ Rename(UnpatchedFile, UnpatchedFile + ".FAILED");
+ DestFile.clear();
new pkgAcqIndex(Owner, TransactionManager, Target);
}
/*}}}*/
Item::Done(Message, Hashes, Cnf);
- string const FinalFile = GetPartialFileNameFromURI(Target.URI);
- if (State == StateFetchDiff)
+ if (std::any_of(allPatches->begin(), allPatches->end(),
+ [](pkgAcqIndexMergeDiffs const * const P) { return P->State == StateErrorDiff; }))
{
- Rename(DestFile, GetMergeDiffsPatchFileName(FinalFile, patch.file));
-
- // check if this is the last completed diff
- State = StateDoneDiff;
- for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
- I != allPatches->end(); ++I)
- if ((*I)->State != StateDoneDiff)
- {
- if(Debug)
- std::clog << "Not the last done diff in the batch: " << Desc.URI << std::endl;
- return;
- }
-
- // this is the last completed diff, so we are ready to apply now
- State = StateApplyDiff;
-
- // patching needs to be bootstrapped with the 'old' version
- if (symlink(GetFinalFilename().c_str(), FinalFile.c_str()) != 0)
- {
- Failed("Link creation of " + FinalFile + " to " + GetFinalFilename() + " failed", NULL);
- return;
- }
-
if(Debug)
- std::clog << "Sending to rred method: " << FinalFile << std::endl;
-
- Local = true;
- Desc.URI = "rred:" + FinalFile;
- QueueURI(Desc);
- SetActiveSubprocess("rred");
+ std::clog << "Another patch failed already, no point in processing this one." << std::endl;
+ State = StateErrorDiff;
return;
}
- // success in download/apply all diffs, clean up
- else if (State == StateApplyDiff)
- {
- // move the result into place
- std::string const Final = GetFinalFilename();
- if(Debug)
- std::clog << "Queue patched file in place: " << std::endl
- << DestFile << " -> " << Final << std::endl;
- // queue for copy by the transaction manager
- TransactionManager->TransactionStageCopy(this, DestFile, Final);
+ std::string const UncompressedUnpatchedFile = GetPartialFileNameFromURI(Target.URI);
+ std::string const UnpatchedFile = GetExistingFilename(UncompressedUnpatchedFile);
+ if (UnpatchedFile.empty())
+ {
+ _error->Fatal("Unpatched file %s doesn't exist (anymore)!", UncompressedUnpatchedFile.c_str());
+ State = StateErrorDiff;
+ return;
+ }
+ std::string const PatchFile = GetMergeDiffsPatchFileName(UnpatchedFile, patch.file);
+ std::string const PatchedFile = GetKeepCompressedFileName(UncompressedUnpatchedFile, Target);
- // ensure the ed's are gone regardless of list-cleanup
- for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
- I != allPatches->end(); ++I)
- {
- std::string const PartialFile = GetPartialFileNameFromURI(Target.URI);
- std::string const patch = GetMergeDiffsPatchFileName(PartialFile, (*I)->patch.file);
- unlink(patch.c_str());
- }
- unlink(FinalFile.c_str());
+ switch (State)
+ {
+ case StateFetchDiff:
+ Rename(DestFile, PatchFile);
- // all set and done
- Complete = true;
- if(Debug)
- std::clog << "allDone: " << DestFile << "\n" << std::endl;
+ // check if this is the last completed diff
+ State = StateDoneDiff;
+ for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
+ I != allPatches->end(); ++I)
+ if ((*I)->State != StateDoneDiff)
+ {
+ if(Debug)
+ std::clog << "Not the last done diff in the batch: " << Desc.URI << std::endl;
+ return;
+ }
+ // this is the last completed diff, so we are ready to apply now
+ DestFile = GetKeepCompressedFileName(UncompressedUnpatchedFile + "-patched", Target);
+ if(Debug)
+ std::clog << "Sending to rred method: " << UnpatchedFile << std::endl;
+ State = StateApplyDiff;
+ Local = true;
+ Desc.URI = "rred:" + UnpatchedFile;
+ QueueURI(Desc);
+ SetActiveSubprocess("rred");
+ return;
+ case StateApplyDiff:
+ // success in download & apply all diffs, finialize and clean up
+ if(Debug)
+ std::clog << "Queue patched file in place: " << std::endl
+ << DestFile << " -> " << PatchedFile << std::endl;
+
+ // queue for copy by the transaction manager
+ TransactionManager->TransactionStageCopy(this, DestFile, GetKeepCompressedFileName(GetFinalFilename(), Target));
+
+ // ensure the ed's are gone regardless of list-cleanup
+ for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
+ I != allPatches->end(); ++I)
+ RemoveFile("pkgAcqIndexMergeDiffs::Done", GetMergeDiffsPatchFileName(UnpatchedFile, (*I)->patch.file));
+ RemoveFile("pkgAcqIndexMergeDiffs::Done", UnpatchedFile);
+
+ // all set and done
+ Complete = true;
+ if(Debug)
+ std::clog << "allDone: " << DestFile << "\n" << std::endl;
+ return;
+ case StateDoneDiff: _error->Fatal("Done called for %s which is in an invalid Done state", PatchFile.c_str()); break;
+ case StateErrorDiff: _error->Fatal("Done called for %s which is in an invalid Error state", PatchFile.c_str()); break;
}
}
/*}}}*/
return pkgAcqBaseIndex::Custom600Headers();
std::ostringstream patchhashes;
unsigned int seen_patches = 0;
+ for (auto && hs : (*allPatches)[0]->patch.result_hashes)
+ patchhashes << "\nStart-" << hs.HashType() << "-Hash: " << hs.HashValue();
for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
I != allPatches->end(); ++I)
{
HashStringList const ExpectedHashes = (*I)->patch.patch_hashes;
for (HashStringList::const_iterator hs = ExpectedHashes.begin(); hs != ExpectedHashes.end(); ++hs)
- patchhashes << "\nPatch-" << seen_patches << "-" << hs->HashType() << "-Hash: " << hs->HashValue();
+ patchhashes << "\nPatch-" << std::to_string(seen_patches) << "-" << hs->HashType() << "-Hash: " << hs->HashValue();
++seen_patches;
}
patchhashes << pkgAcqBaseIndex::Custom600Headers();
// AcqIndex::AcqIndex - Constructor /*{{{*/
pkgAcqIndex::pkgAcqIndex(pkgAcquire * const Owner,
pkgAcqMetaClearSig * const TransactionManager,
- IndexTarget const &Target)
- : pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL), Stage(STAGE_DOWNLOAD)
+ IndexTarget const &Target, bool const Derived)
+ : pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL), Stage(STAGE_DOWNLOAD),
+ CompressionExtensions(Target.Option(IndexTarget::COMPRESSIONTYPES))
{
- // autoselect the compression method
- AutoSelectCompression();
+ if (Derived)
+ return;
Init(Target.URI, Target.Description, Target.ShortDesc);
if(_config->FindB("Debug::Acquire::Transaction", false) == true)
<< TransactionManager << std::endl;
}
/*}}}*/
-// AcqIndex::AutoSelectCompression - Select compression /*{{{*/
-void pkgAcqIndex::AutoSelectCompression()
+// AcqIndex::Init - defered Constructor /*{{{*/
+static void NextCompressionExtension(std::string &CurrentCompressionExtension, std::string &CompressionExtensions, bool const preview)
{
- std::vector<std::string> types = APT::Configuration::getCompressionTypes();
- CompressionExtensions = "";
- if (TransactionManager->MetaIndexParser != NULL && TransactionManager->MetaIndexParser->Exists(Target.MetaKey))
+ size_t const nextExt = CompressionExtensions.find(' ');
+ if (nextExt == std::string::npos)
{
- for (std::vector<std::string>::const_iterator t = types.begin();
- t != types.end(); ++t)
- {
- std::string CompressedMetaKey = string(Target.MetaKey).append(".").append(*t);
- if (*t == "uncompressed" ||
- TransactionManager->MetaIndexParser->Exists(CompressedMetaKey) == true)
- CompressionExtensions.append(*t).append(" ");
- }
+ CurrentCompressionExtension = CompressionExtensions;
+ if (preview == false)
+ CompressionExtensions.clear();
}
else
{
- for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
- CompressionExtensions.append(*t).append(" ");
+ CurrentCompressionExtension = CompressionExtensions.substr(0, nextExt);
+ if (preview == false)
+ CompressionExtensions = CompressionExtensions.substr(nextExt+1);
}
- if (CompressionExtensions.empty() == false)
- CompressionExtensions.erase(CompressionExtensions.end()-1);
}
- /*}}}*/
-// AcqIndex::Init - defered Constructor /*{{{*/
void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
string const &ShortDesc)
{
Stage = STAGE_DOWNLOAD;
DestFile = GetPartialFileNameFromURI(URI);
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, false);
- size_t const nextExt = CompressionExtensions.find(' ');
- if (nextExt == std::string::npos)
+ if (CurrentCompressionExtension == "uncompressed")
{
- CurrentCompressionExtension = CompressionExtensions;
- CompressionExtensions.clear();
+ Desc.URI = URI;
}
- else
+ else if (CurrentCompressionExtension == "by-hash")
{
- CurrentCompressionExtension = CompressionExtensions.substr(0, nextExt);
- CompressionExtensions = CompressionExtensions.substr(nextExt+1);
- }
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, true);
+ if(unlikely(CurrentCompressionExtension.empty()))
+ return;
+ if (CurrentCompressionExtension != "uncompressed")
+ {
+ Desc.URI = URI + '.' + CurrentCompressionExtension;
+ DestFile = DestFile + '.' + CurrentCompressionExtension;
+ }
+ else
+ Desc.URI = URI;
- if (CurrentCompressionExtension == "uncompressed")
- {
- Desc.URI = URI;
+ HashStringList const Hashes = GetExpectedHashes();
+ HashString const * const TargetHash = Hashes.find(NULL);
+ if (unlikely(TargetHash == nullptr))
+ return;
+ std::string const ByHash = "/by-hash/" + TargetHash->HashType() + "/" + TargetHash->HashValue();
+ size_t const trailing_slash = Desc.URI.find_last_of("/");
+ if (unlikely(trailing_slash == std::string::npos))
+ return;
+ Desc.URI = Desc.URI.replace(
+ trailing_slash,
+ Desc.URI.substr(trailing_slash+1).size()+1,
+ ByHash);
}
else if (unlikely(CurrentCompressionExtension.empty()))
return;
DestFile = DestFile + '.' + CurrentCompressionExtension;
}
- if(TransactionManager->MetaIndexParser != NULL)
- InitByHashIfNeeded();
+ // store file size of the download to ensure the fetcher gives
+ // accurate progress reporting
+ FileSize = GetExpectedHashes().FileSize();
Desc.Description = URIDesc;
Desc.Owner = this;
QueueURI(Desc);
}
/*}}}*/
-// AcqIndex::AdjustForByHash - modify URI for by-hash support /*{{{*/
-void pkgAcqIndex::InitByHashIfNeeded()
-{
- // TODO:
- // - (maybe?) add support for by-hash into the sources.list as flag
- // - make apt-ftparchive generate the hashes (and expire?)
- std::string HostKnob = "APT::Acquire::" + ::URI(Desc.URI).Host + "::By-Hash";
- if(_config->FindB("APT::Acquire::By-Hash", false) == true ||
- _config->FindB(HostKnob, false) == true ||
- TransactionManager->MetaIndexParser->GetSupportsAcquireByHash())
- {
- HashStringList const Hashes = GetExpectedHashes();
- if(Hashes.usable())
- {
- // FIXME: should we really use the best hash here? or a fixed one?
- HashString const * const TargetHash = Hashes.find("");
- std::string const ByHash = "/by-hash/" + TargetHash->HashType() + "/" + TargetHash->HashValue();
- size_t const trailing_slash = Desc.URI.find_last_of("/");
- Desc.URI = Desc.URI.replace(
- trailing_slash,
- Desc.URI.substr(trailing_slash+1).size()+1,
- ByHash);
- } else {
- _error->Warning(
- "Fetching ByHash requested but can not find record for %s",
- GetMetaKey().c_str());
- }
- }
-}
- /*}}}*/
// AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
// ---------------------------------------------------------------------
/* The only header we use is the last-modified header. */
string pkgAcqIndex::Custom600Headers() const
{
- string Final = GetFinalFilename();
string msg = "\nIndex-File: true";
- struct stat Buf;
- if (stat(Final.c_str(),&Buf) == 0)
- msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+
+ if (TransactionManager->LastMetaIndexParser == NULL)
+ {
+ std::string const Final = GetFinalFilename();
+
+ struct stat Buf;
+ if (stat(Final.c_str(),&Buf) == 0)
+ msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime, false);
+ }
if(Target.IsOptional)
msg += "\nFail-Ignore: true";
}
/*}}}*/
// AcqIndex::Failed - getting the indexfile failed /*{{{*/
-void pkgAcqIndex::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)
+bool pkgAcqIndex::CommonFailed(std::string const &TargetURI, std::string const TargetDesc,
+ std::string const &Message, pkgAcquire::MethodConfig const * const Cnf)
{
- Item::Failed(Message,Cnf);
+ pkgAcqBaseIndex::Failed(Message,Cnf);
+
+ if (UsedMirror.empty() == false && UsedMirror != "DIRECT" &&
+ LookupTag(Message, "FailReason") == "HttpError404")
+ {
+ UsedMirror = "DIRECT";
+ if (Desc.URI.find("/by-hash/") != std::string::npos)
+ CompressionExtensions = "by-hash " + CompressionExtensions;
+ else
+ CompressionExtensions = CurrentCompressionExtension + ' ' + CompressionExtensions;
+ Init(TargetURI, TargetDesc, Desc.ShortDesc);
+ Status = StatIdle;
+ return true;
+ }
// authorisation matches will not be fixed by other compression types
if (Status != StatAuthError)
{
if (CompressionExtensions.empty() == false)
{
- Init(Target.URI, Desc.Description, Desc.ShortDesc);
+ Init(TargetURI, Desc.Description, Desc.ShortDesc);
Status = StatIdle;
- return;
+ return true;
}
}
+ return false;
+}
+void pkgAcqIndex::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)
+{
+ if (CommonFailed(Target.URI, Target.Description, Message, Cnf))
+ return;
if(Target.IsOptional && GetExpectedHashes().empty() && Stage == STAGE_DOWNLOAD)
Status = StatDone;
TransactionManager->AbortTransaction();
}
/*}}}*/
-// AcqIndex::ReverifyAfterIMS - Reverify index after an ims-hit /*{{{*/
-void pkgAcqIndex::ReverifyAfterIMS()
-{
- // update destfile to *not* include the compression extension when doing
- // a reverify (as its uncompressed on disk already)
- DestFile = GetCompressedFileName(Target, GetPartialFileNameFromURI(Target.URI), CurrentCompressionExtension);
-
- // copy FinalFile into partial/ so that we check the hash again
- string FinalFile = GetFinalFilename();
- Stage = STAGE_DECOMPRESS_AND_VERIFY;
- Desc.URI = "copy:" + FinalFile;
- QueueURI(Desc);
-}
- /*}}}*/
// AcqIndex::Done - Finished a fetch /*{{{*/
// ---------------------------------------------------------------------
/* This goes through a number of states.. On the initial fetch the
switch(Stage)
{
case STAGE_DOWNLOAD:
- StageDownloadDone(Message, Hashes, Cfg);
+ StageDownloadDone(Message);
break;
case STAGE_DECOMPRESS_AND_VERIFY:
- StageDecompressDone(Message, Hashes, Cfg);
+ StageDecompressDone();
break;
}
}
/*}}}*/
// AcqIndex::StageDownloadDone - Queue for decompress and verify /*{{{*/
-void pkgAcqIndex::StageDownloadDone(string const &Message, HashStringList const &,
- pkgAcquire::MethodConfig const * const)
+void pkgAcqIndex::StageDownloadDone(string const &Message)
{
+ Local = true;
Complete = true;
- // Handle the unzipd case
- std::string FileName = LookupTag(Message,"Alt-Filename");
- if (FileName.empty() == false)
+ std::string const AltFilename = LookupTag(Message,"Alt-Filename");
+ std::string Filename = LookupTag(Message,"Filename");
+
+ // we need to verify the file against the current Release file again
+ // on if-modfied-since hit to avoid a stale attack against us
+ if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
{
+ // copy FinalFile into partial/ so that we check the hash again
+ string const FinalFile = GetExistingFilename(GetFinalFileNameFromURI(Target.URI));
+ if (symlink(FinalFile.c_str(), DestFile.c_str()) != 0)
+ _error->WarningE("pkgAcqIndex::StageDownloadDone", "Symlinking final file %s back to %s failed", FinalFile.c_str(), DestFile.c_str());
+ else
+ {
+ EraseFileName = DestFile;
+ Filename = DestFile;
+ }
Stage = STAGE_DECOMPRESS_AND_VERIFY;
- Local = true;
- DestFile += ".decomp";
- Desc.URI = "copy:" + FileName;
+ Desc.URI = "store:" + Filename;
QueueURI(Desc);
- SetActiveSubprocess("copy");
+ SetActiveSubprocess(::URI(Desc.URI).Access);
return;
}
- FileName = LookupTag(Message,"Filename");
-
+ // methods like file:// give us an alternative (uncompressed) file
+ else if (Target.KeepCompressed == false && AltFilename.empty() == false)
+ {
+ Filename = AltFilename;
+ EraseFileName.clear();
+ }
// Methods like e.g. "file:" will give us a (compressed) FileName that is
// not the "DestFile" we set, in this case we uncompress from the local file
- if (FileName != DestFile && RealFileExists(DestFile) == false)
- Local = true;
- else
- EraseFileName = FileName;
-
- // we need to verify the file against the current Release file again
- // on if-modfied-since hit to avoid a stale attack against us
- if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
+ else if (Filename != DestFile && RealFileExists(DestFile) == false)
{
- // The files timestamp matches, reverify by copy into partial/
- EraseFileName = "";
- ReverifyAfterIMS();
- return;
+ // symlinking ensures that the filename can be used for compression detection
+ // that is e.g. needed for by-hash which has no extension over file
+ if (symlink(Filename.c_str(),DestFile.c_str()) != 0)
+ _error->WarningE("pkgAcqIndex::StageDownloadDone", "Symlinking file %s to %s failed", Filename.c_str(), DestFile.c_str());
+ else
+ {
+ EraseFileName = DestFile;
+ Filename = DestFile;
+ }
}
- // If we want compressed indexes, just copy in place for hash verification
- if (Target.KeepCompressed == true)
- {
- DestFile = GetPartialFileNameFromURI(Target.URI + '.' + CurrentCompressionExtension);
- EraseFileName = "";
- Stage = STAGE_DECOMPRESS_AND_VERIFY;
- Desc.URI = "copy:" + FileName;
- QueueURI(Desc);
- SetActiveSubprocess("copy");
- return;
- }
-
- // get the binary name for your used compression type
- string decompProg;
- if(CurrentCompressionExtension == "uncompressed")
- decompProg = "copy";
+ Stage = STAGE_DECOMPRESS_AND_VERIFY;
+ DestFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI), Target);
+ if (Filename != DestFile && flExtension(Filename) == flExtension(DestFile))
+ Desc.URI = "copy:" + Filename;
else
- decompProg = _config->Find(string("Acquire::CompressionTypes::").append(CurrentCompressionExtension),"");
- if(decompProg.empty() == true)
+ Desc.URI = "store:" + Filename;
+ if (DestFile == Filename)
{
- _error->Error("Unsupported extension: %s", CurrentCompressionExtension.c_str());
- return;
+ if (CurrentCompressionExtension == "uncompressed")
+ return StageDecompressDone();
+ DestFile = "/dev/null";
}
+ if (EraseFileName.empty() && Filename != AltFilename)
+ EraseFileName = Filename;
+
// queue uri for the next stage
- Stage = STAGE_DECOMPRESS_AND_VERIFY;
- DestFile += ".decomp";
- Desc.URI = decompProg + ":" + FileName;
QueueURI(Desc);
- SetActiveSubprocess(decompProg);
+ SetActiveSubprocess(::URI(Desc.URI).Access);
}
/*}}}*/
// AcqIndex::StageDecompressDone - Final verification /*{{{*/
-void pkgAcqIndex::StageDecompressDone(string const &,
- HashStringList const &,
- pkgAcquire::MethodConfig const * const)
+void pkgAcqIndex::StageDecompressDone()
{
+ if (DestFile == "/dev/null")
+ DestFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI), Target);
+
// Done, queue for rename on transaction finished
TransactionManager->TransactionStageCopy(this, DestFile, GetFinalFilename());
- return;
}
/*}}}*/
pkgAcqIndex::~pkgAcqIndex() {}
/* Hmm, we have a file and its size does not match, this means it is
an old style mismatched arch */
- unlink(FinalFile.c_str());
+ RemoveFile("pkgAcqArchive::QueueNext", FinalFile);
}
// Check it again using the new style output filenames
/* Hmm, we have a file and its size does not match, this shouldn't
happen.. */
- unlink(FinalFile.c_str());
+ RemoveFile("pkgAcqArchive::QueueNext", FinalFile);
}
DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename);
{
// Hmm, the partial file is too big, erase it
if ((unsigned long long)Buf.st_size > Version->Size)
- unlink(DestFile.c_str());
+ RemoveFile("pkgAcqArchive::QueueNext", DestFile);
else
PartialSize = Buf.st_size;
}
pkgAcqArchive::~pkgAcqArchive() {}
// AcqChangelog::pkgAcqChangelog - Constructors /*{{{*/
+class pkgAcqChangelog::Private
+{
+ public:
+ std::string FinalFile;
+};
pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::VerIterator const &Ver,
std::string const &DestDir, std::string const &DestFilename) :
- pkgAcquire::Item(Owner), d(NULL), SrcName(Ver.SourcePkgName()), SrcVersion(Ver.SourceVerStr())
+ pkgAcquire::Item(Owner), d(new pkgAcqChangelog::Private()), SrcName(Ver.SourcePkgName()), SrcVersion(Ver.SourceVerStr())
{
Desc.URI = URI(Ver);
Init(DestDir, DestFilename);
pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::RlsFileIterator const &RlsFile,
char const * const Component, char const * const SrcName, char const * const SrcVersion,
const string &DestDir, const string &DestFilename) :
- pkgAcquire::Item(Owner), d(NULL), SrcName(SrcName), SrcVersion(SrcVersion)
+ pkgAcquire::Item(Owner), d(new pkgAcqChangelog::Private()), SrcName(SrcName), SrcVersion(SrcVersion)
{
Desc.URI = URI(RlsFile, Component, SrcName, SrcVersion);
Init(DestDir, DestFilename);
pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner,
std::string const &URI, char const * const SrcName, char const * const SrcVersion,
const string &DestDir, const string &DestFilename) :
- pkgAcquire::Item(Owner), d(NULL), SrcName(SrcName), SrcVersion(SrcVersion)
+ pkgAcquire::Item(Owner), d(new pkgAcqChangelog::Private()), SrcName(SrcName), SrcVersion(SrcVersion)
{
Desc.URI = URI;
Init(DestDir, DestFilename);
return;
}
- if (DestDir.empty())
+ std::string DestFileName;
+ if (DestFilename.empty())
+ DestFileName = flCombine(DestFile, SrcName + ".changelog");
+ else
+ DestFileName = flCombine(DestFile, DestFilename);
+
+ std::string const SandboxUser = _config->Find("APT::Sandbox::User");
+ std::string const systemTemp = GetTempDir(SandboxUser);
+ char tmpname[1000];
+ snprintf(tmpname, sizeof(tmpname), "%s/apt-changelog-XXXXXX", systemTemp.c_str());
+ if (NULL == mkdtemp(tmpname))
+ {
+ _error->Errno("mkdtemp", "mkdtemp failed in changelog acquire of %s %s", SrcName.c_str(), SrcVersion.c_str());
+ Status = StatError;
+ return;
+ }
+ TemporaryDirectory = tmpname;
+
+ ChangeOwnerAndPermissionOfFile("Item::QueueURI", TemporaryDirectory.c_str(),
+ SandboxUser.c_str(), "root", 0700);
+
+ DestFile = flCombine(TemporaryDirectory, DestFileName);
+ if (DestDir.empty() == false)
{
- std::string const systemTemp = GetTempDir();
- char tmpname[100];
- snprintf(tmpname, sizeof(tmpname), "%s/apt-changelog-XXXXXX", systemTemp.c_str());
- if (NULL == mkdtemp(tmpname))
+ d->FinalFile = flCombine(DestDir, DestFileName);
+ if (RealFileExists(d->FinalFile))
{
- _error->Errno("mkdtemp", "mkdtemp failed in changelog acquire of %s %s", SrcName.c_str(), SrcVersion.c_str());
- Status = StatError;
- return;
+ FileFd file1, file2;
+ if (file1.Open(DestFile, FileFd::WriteOnly | FileFd::Create | FileFd::Exclusive) &&
+ file2.Open(d->FinalFile, FileFd::ReadOnly) && CopyFile(file2, file1))
+ {
+ struct timeval times[2];
+ times[0].tv_sec = times[1].tv_sec = file2.ModificationTime();
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(DestFile.c_str(), times);
+ }
}
- DestFile = TemporaryDirectory = tmpname;
}
- else
- DestFile = DestDir;
-
- if (DestFilename.empty())
- DestFile = flCombine(DestFile, SrcName + ".changelog");
- else
- DestFile = flCombine(DestFile, DestFilename);
Desc.ShortDesc = "Changelog";
strprintf(Desc.Description, "%s %s %s Changelog", URI::SiteOnly(Desc.URI).c_str(), SrcName.c_str(), SrcVersion.c_str());
/*}}}*/
std::string pkgAcqChangelog::URI(pkgCache::VerIterator const &Ver) /*{{{*/
{
+ std::string const confOnline = "Acquire::Changelogs::AlwaysOnline";
+ bool AlwaysOnline = _config->FindB(confOnline, false);
+ if (AlwaysOnline == false)
+ for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; ++VF)
+ {
+ pkgCache::PkgFileIterator const PF = VF.File();
+ if (PF.Flagged(pkgCache::Flag::NotSource) || PF->Release == 0)
+ continue;
+ pkgCache::RlsFileIterator const RF = PF.ReleaseFile();
+ if (RF->Origin != 0 && _config->FindB(confOnline + "::Origin::" + RF.Origin(), false))
+ {
+ AlwaysOnline = true;
+ break;
+ }
+ }
+ if (AlwaysOnline == false)
+ {
+ pkgCache::PkgIterator const Pkg = Ver.ParentPkg();
+ if (Pkg->CurrentVer != 0 && Pkg.CurrentVer() == Ver)
+ {
+ std::string const basename = std::string("/usr/share/doc/") + Pkg.Name() + "/changelog";
+ std::string const debianname = basename + ".Debian";
+ if (FileExists(debianname))
+ return "copy://" + debianname;
+ else if (FileExists(debianname + ".gz"))
+ return "gzip://" + debianname + ".gz";
+ else if (FileExists(basename))
+ return "copy://" + basename;
+ else if (FileExists(basename + ".gz"))
+ return "gzip://" + basename + ".gz";
+ }
+ }
+
char const * const SrcName = Ver.SourcePkgName();
char const * const SrcVersion = Ver.SourceVerStr();
- pkgCache::PkgFileIterator PkgFile;
// find the first source for this version which promises a changelog
for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; ++VF)
{
pkgCache::PkgFileIterator const PF = VF.File();
if (PF.Flagged(pkgCache::Flag::NotSource) || PF->Release == 0)
continue;
- PkgFile = PF;
pkgCache::RlsFileIterator const RF = PF.ReleaseFile();
std::string const uri = URI(RF, PF.Component(), SrcName, SrcVersion);
if (uri.empty())
char const * const Component, char const * const SrcName,
char const * const SrcVersion)
{
- if (Template.find("CHANGEPATH") == std::string::npos)
+ if (Template.find("@CHANGEPATH@") == std::string::npos)
return "";
// the path is: COMPONENT/SRC/SRCNAME/SRCNAME_SRCVER, e.g. main/a/apt/1.1 or contrib/liba/libapt/2.0
if (Component != NULL && strlen(Component) != 0)
path = std::string(Component) + "/" + path;
- return SubstVar(Template, "CHANGEPATH", path);
+ return SubstVar(Template, "@CHANGEPATH@", path);
}
/*}}}*/
// AcqChangelog::Failed - Failure handler /*{{{*/
ErrorText = errText;
else
ErrorText = errText + " (" + ErrorText + ")";
- return;
}
/*}}}*/
// AcqChangelog::Done - Item downloaded OK /*{{{*/
pkgAcquire::MethodConfig const * const Cnf)
{
Item::Done(Message,CalcHashes,Cnf);
+ if (d->FinalFile.empty() == false)
+ {
+ if (RemoveFile("pkgAcqChangelog::Done", d->FinalFile) == false ||
+ Rename(DestFile, d->FinalFile) == false)
+ Status = StatError;
+ }
Complete = true;
}
{
if (TemporaryDirectory.empty() == false)
{
- unlink(DestFile.c_str());
+ RemoveFile("~pkgAcqChangelog", DestFile);
rmdir(TemporaryDirectory.c_str());
}
+ delete d;
}
/*}}}*/
{
// Hmm, the partial file is too big, erase it
if ((Size > 0) && (unsigned long long)Buf.st_size > Size)
- unlink(DestFile.c_str());
+ RemoveFile("pkgAcqFile", DestFile);
else
PartialSize = Buf.st_size;
}
if (lstat(DestFile.c_str(),&St) == 0)
{
if (S_ISLNK(St.st_mode) != 0)
- unlink(DestFile.c_str());
+ RemoveFile("pkgAcqFile::Done", DestFile);
}
// Symlink the file
_error->PushToStack();
_error->Errno("pkgAcqFile::Done", "Symlinking file %s failed", DestFile.c_str());
std::stringstream msg;
- _error->DumpErrors(msg);
+ _error->DumpErrors(msg, GlobalError::DEBUG, false);
_error->RevertToStack();
ErrorText = msg.str();
Status = StatError;
projects / apt.git / blobdiff