}
/*}}}*/
-static bool AllowInsecureRepositories(metaIndex const * const MetaIndexParser, pkgAcqMetaClearSig * const TransactionManager, pkgAcquire::Item * const I) /*{{{*/
+static bool MessageInsecureRepository(bool const isError, std::string const &msg)/*{{{*/
{
- if(MetaIndexParser->GetTrusted() == metaIndex::TRI_YES || _config->FindB("Acquire::AllowInsecureRepositories") == true)
+ if (isError)
+ {
+ _error->Error("%s", msg.c_str());
+ _error->Notice("%s", _("Updating from such a repository can't be done securely, and is therefore disabled by default."));
+ }
+ else
+ {
+ _error->Warning("%s", msg.c_str());
+ _error->Notice("%s", _("Data from such a repository can't be authenticated and is therefore potentially dangerous to use."));
+ }
+ _error->Notice("%s", _("See apt-secure(8) manpage for repository creation and user configuration details."));
+ return false;
+}
+static bool MessageInsecureRepository(bool const isError, char const * const msg, std::string const &repo)
+{
+ std::string m;
+ strprintf(m, msg, repo.c_str());
+ return MessageInsecureRepository(isError, m);
+}
+ /*}}}*/
+static bool AllowInsecureRepositories(char const * const msg, std::string const &repo,/*{{{*/
+ metaIndex const * const MetaIndexParser, pkgAcqMetaClearSig * const TransactionManager, pkgAcquire::Item * const I)
+{
+ if(MetaIndexParser->GetTrusted() == metaIndex::TRI_YES)
return true;
- _error->Error(_("Use --allow-insecure-repositories to force the update"));
+ if (_config->FindB("Acquire::AllowInsecureRepositories") == true)
+ {
+ MessageInsecureRepository(false, msg, repo);
+ return true;
+ }
+
+ MessageInsecureRepository(true, msg, repo);
TransactionManager->AbortTransaction();
I->Status = pkgAcquire::Item::StatError;
return false;
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;
+ TransactionManager->MetaIndexParser->GetLoadedSuccessfully() == metaIndex::TRI_YES;
}
HashStringList pkgAcqTransactionItem::GetExpectedHashes() const
{
} else {
if(Debug == true)
std::clog << "rm " << DestFile << " # " << DescURI() << std::endl;
- unlink(DestFile.c_str());
+ RemoveFile("TransactionCommit", DestFile);
}
break;
}
// keep the compressed file, but drop the decompressed
EraseFileName.clear();
if (PartialFile.empty() == false && flExtension(PartialFile) == "decomp")
- unlink(PartialFile.c_str());
+ RemoveFile("TransactionAbort", PartialFile);
}
break;
case TransactionCommit:
if (EraseFileName.empty() == false)
- unlink(EraseFileName.c_str());
+ RemoveFile("TransactionCommit", EraseFileName);
break;
}
return true;
break;
case TransactionAbort:
std::string const Partial = GetPartialFileNameFromURI(Target.URI);
- unlink(Partial.c_str());
+ RemoveFile("TransactionAbort", Partial);
break;
}
if (RealFileExists(FinalFile) && Hashes.VerifyFile(FinalFile) == true)
{
IMSHit = true;
- unlink(I->DestFile.c_str());
+ RemoveFile("CheckDownloadDone", I->DestFile);
}
}
// at this point the real Items are loaded in the fetcher
ExpectedAdditionalItems = 0;
+ bool metaBaseSupportsByHash = false;
+ if (TransactionManager != NULL && TransactionManager->MetaIndexParser != NULL)
+ metaBaseSupportsByHash = TransactionManager->MetaIndexParser->GetSupportsAcquireByHash();
+
for (std::vector <IndexTarget>::iterator Target = IndexTargets.begin();
Target != IndexTargets.end();
++Target)
{
+ // all is an implementation detail. Users shouldn't use this as arch
+ // We need this support trickery here as e.g. Debian has binary-all files already,
+ // but arch:all packages are still in the arch:any files, so we would waste precious
+ // download time, bandwidth and diskspace for nothing, BUT Debian doesn't feature all
+ // in the set of supported architectures, so we can filter based on this property rather
+ // than invent an entirely new flag we would need to carry for all of eternity.
+ if (Target->Option(IndexTarget::ARCHITECTURE) == "all" &&
+ TransactionManager->MetaIndexParser->IsArchitectureSupported("all") == false)
+ continue;
+
bool trypdiff = Target->OptionBool(IndexTarget::PDIFFS);
if (verify == true)
{
if (Target->IsOptional)
continue;
+ std::string const &arch = Target->Option(IndexTarget::ARCHITECTURE);
+ if (arch.empty() == false)
+ {
+ if (TransactionManager->MetaIndexParser->IsArchitectureSupported(arch) == false)
+ {
+ _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 (TransactionManager->MetaIndexParser->IsArchitectureSupported("*undefined*") == false)
+ 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;
}
+ else
+ {
+ auto const hashes = GetExpectedHashesFor(Target->MetaKey);
+ if (hashes.usable() == false && hashes.empty() == false)
+ {
+ _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;
+ }
+ }
// autoselect the compression method
std::vector<std::string> types = VectorizeString(Target->Option(IndexTarget::COMPRESSIONTYPES), ' ');
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();
if (filename.empty() == false)
{
new NoActionItem(Owner, *Target, filename);
+ std::string const idxfilename = GetFinalFileNameFromURI(Target->URI + ".diff/Index");
+ if (FileExists(idxfilename))
+ new NoActionItem(Owner, *Target, idxfilename);
continue;
}
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.
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();
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)
+ // only allow going further if the user explicitly wants it
+ if(AllowInsecureRepositories(_("The repository '%s' is not signed."), ClearsignedTarget.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true)
{
Status = StatDone;
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(_("The repository '%s' does not have a Release file."), Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true)
{
// ensure old Release files are removed
TransactionManager->TransactionStageRemoval(this, GetFinalFilename());
// 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)
"given to override it."));
Status = StatDone;
} else {
- _error->Error("%s", downgrade_msg.c_str());
+ MessageInsecureRepository(true, downgrade_msg);
if (TransactionManager->IMSHit == false)
Rename(MetaIndex->DestFile, MetaIndex->DestFile + ".FAILED");
Item::Failed("Message: " + downgrade_msg, Cnf);
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(_("The repository '%s' is not signed."), MetaIndex->Target.Description, TransactionManager->MetaIndexParser, TransactionManager, this) == true)
{
if (RealFileExists(FinalReleasegpg) || RealFileExists(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);
+ MetaIndex->QueueIndexes(GoodLoad);
TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, MetaIndex->GetFinalFilename());
}
/* The only header we use is the last-modified header. */
string pkgAcqDiffIndex::Custom600Headers() const
{
+ if (TransactionManager->LastMetaIndexParser != NULL)
+ return "\nIndex-File: true";
+
string const Final = GetFinalFilename();
if(Debug)
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;
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;
}
}
- 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");
// 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)
{
// remove the just applied patch
available_patches.erase(available_patches.begin());
- unlink(PatchFile.c_str());
+ RemoveFile("pkgAcqIndexDiffs::Done", PatchFile);
// move into place
if(Debug)
{
std::string const PartialFile = GetKeepCompressedFileName(GetPartialFileNameFromURI(Target.URI), Target);
std::string const patch = GetMergeDiffsPatchFileName(PartialFile, (*I)->patch.file);
- unlink(patch.c_str());
+ RemoveFile("pkgAcqIndexMergeDiffs::Done", patch);
}
- unlink(FinalFile.c_str());
+ RemoveFile("pkgAcqIndexMergeDiffs::Done", FinalFile);
// all set and done
Complete = true;
}
/*}}}*/
// AcqIndex::Init - defered Constructor /*{{{*/
-void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
- string const &ShortDesc)
+static void NextCompressionExtension(std::string &CurrentCompressionExtension, std::string &CompressionExtensions, bool const preview)
{
- Stage = STAGE_DOWNLOAD;
-
- DestFile = GetPartialFileNameFromURI(URI);
-
size_t const nextExt = CompressionExtensions.find(' ');
if (nextExt == std::string::npos)
{
CurrentCompressionExtension = CompressionExtensions;
- CompressionExtensions.clear();
+ if (preview == false)
+ CompressionExtensions.clear();
}
else
{
CurrentCompressionExtension = CompressionExtensions.substr(0, nextExt);
- CompressionExtensions = CompressionExtensions.substr(nextExt+1);
+ if (preview == false)
+ CompressionExtensions = CompressionExtensions.substr(nextExt+1);
}
+}
+void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
+ string const &ShortDesc)
+{
+ Stage = STAGE_DOWNLOAD;
+
+ DestFile = GetPartialFileNameFromURI(URI);
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, false);
if (CurrentCompressionExtension == "uncompressed")
{
Desc.URI = URI;
}
+ else if (CurrentCompressionExtension == "by-hash")
+ {
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, true);
+ if(unlikely(TransactionManager->MetaIndexParser == NULL || CurrentCompressionExtension.empty()))
+ return;
+ if (CurrentCompressionExtension != "uncompressed")
+ {
+ Desc.URI = URI + '.' + CurrentCompressionExtension;
+ DestFile = DestFile + '.' + CurrentCompressionExtension;
+ }
+
+ 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;
else
DestFile = DestFile + '.' + CurrentCompressionExtension;
}
- if(TransactionManager->MetaIndexParser != NULL)
- InitByHashIfNeeded();
Desc.Description = URIDesc;
Desc.Owner = this;
QueueURI(Desc);
}
/*}}}*/
-// AcqIndex::AdjustForByHash - modify URI for by-hash support /*{{{*/
-void pkgAcqIndex::InitByHashIfNeeded()
-{
- std::string const useByHash = Target.Option(IndexTarget::BY_HASH);
- if(useByHash == "force" || (StringToBool(useByHash) == 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);
+ }
if(Target.IsOptional)
msg += "\nFail-Ignore: true";
// 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;
+ if (Target.KeepCompressed == true)
+ {
+ // but if we don't keep the uncompress we copy the compressed file first
+ Stage = STAGE_DOWNLOAD;
+ Desc.URI = "copy:" + FileName;
+ QueueURI(Desc);
+ SetActiveSubprocess("copy");
+ return;
+ }
+ }
else
EraseFileName = FileName;
return;
}
- // 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")
return;
}
+ if (Target.KeepCompressed == true)
+ {
+ DestFile = "/dev/null";
+ EraseFileName.clear();
+ }
+ else
+ DestFile += ".decomp";
+
// queue uri for the next stage
Stage = STAGE_DECOMPRESS_AND_VERIFY;
- DestFile += ".decomp";
Desc.URI = decompProg + ":" + FileName;
QueueURI(Desc);
SetActiveSubprocess(decompProg);
HashStringList const &,
pkgAcquire::MethodConfig const * const)
{
+ if (Target.KeepCompressed == true && DestFile == "/dev/null")
+ DestFile = GetPartialFileNameFromURI(Target.URI + '.' + CurrentCompressionExtension);
+
// Done, queue for rename on transaction finished
TransactionManager->TransactionStageCopy(this, DestFile, GetFinalFilename());
return;
/* 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;
}
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 /*{{{*/
{
if (TemporaryDirectory.empty() == false)
{
- unlink(DestFile.c_str());
+ RemoveFile("~pkgAcqChangelog", DestFile);
rmdir(TemporaryDirectory.c_str());
}
}
{
// 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
projects / apt.git / blobdiff