]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/acquire-item.cc
CMake: Do not use -lresolv if res_init exists in libc
[apt.git] / apt-pkg / acquire-item.cc
index a4b1d489736670c0622828a2bfc091e4910e0f7e..7abb7b206a6156a5d347fa8f247e43cef261749e 100644 (file)
@@ -410,7 +410,7 @@ bool pkgAcqTransactionItem::QueueURI(pkgAcquire::ItemDesc &Item)
       return false;
    }
    // If we got the InRelease file via a mirror, pick all indexes directly from this mirror, too
-   if (TransactionManager->BaseURI.empty() == false &&
+   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
@@ -451,7 +451,11 @@ std::string pkgAcquire::Item::GetFinalFilename() const
 }
 std::string pkgAcqDiffIndex::GetFinalFilename() const
 {
-   return GetFinalFileNameFromURI(GetDiffIndexURI(Target));
+   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
 {
@@ -488,7 +492,10 @@ std::string pkgAcqIndex::GetMetaKey() const
 }
 std::string pkgAcqDiffIndex::GetMetaKey() const
 {
-   return GetDiffIndexFileName(Target.MetaKey);
+   auto const metakey = GetDiffIndexFileName(Target.MetaKey);
+   if (CurrentCompressionExtension == "uncompressed")
+      return metakey;
+   return metakey + "." + CurrentCompressionExtension;
 }
                                                                        /*}}}*/
 //pkgAcqTransactionItem::TransactionState and specialisations for child classes        /*{{{*/
@@ -685,10 +692,15 @@ class APT_HIDDEN CleanupItem : public pkgAcqTransactionItem               /*{{{*/
                                                                        /*}}}*/
 
 // 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;
@@ -699,6 +711,7 @@ APT_IGNORE_DEPRECATED_POP
 pkgAcquire::Item::~Item()
 {
    Owner->Remove(this);
+   delete d;
 }
                                                                        /*}}}*/
 std::string pkgAcquire::Item::Custom600Headers() const                 /*{{{*/
@@ -766,32 +779,40 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
    }
 
    string const FailReason = LookupTag(Message, "FailReason");
-   enum { MAXIMUM_SIZE_EXCEEDED, HASHSUM_MISMATCH, WEAK_HASHSUMS, OTHER } failreason = OTHER;
+   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)
       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)
       {
-        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 MAXIMUM_SIZE_EXCEEDED:
-           case OTHER:
-              out << LookupTag(Message, "Message") << std::endl;
-              break;
-        }
         auto const ExpectedHashes = GetExpectedHashes();
         if (ExpectedHashes.empty() == false)
         {
@@ -822,10 +843,8 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
            }
            out << "Last modification reported: " << LookupTag(Message, "Last-Modified", "<none>") << std::endl;
         }
-        ErrorText = out.str();
       }
-      else
-        ErrorText = LookupTag(Message,"Message");
+      ErrorText = out.str();
    }
 
    switch (failreason)
@@ -833,6 +852,7 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
       case MAXIMUM_SIZE_EXCEEDED: RenameOnError(MaximumSizeExceeded); break;
       case HASHSUM_MISMATCH: RenameOnError(HashSumMismatch); break;
       case WEAK_HASHSUMS: break;
+      case REDIRECTION_LOOP: break;
       case OTHER: break;
    }
 
@@ -976,6 +996,27 @@ 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) :
@@ -1167,7 +1208,7 @@ string pkgAcqMetaBase::Custom600Headers() const
    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;
 }
@@ -1192,9 +1233,15 @@ bool pkgAcqMetaBase::CheckDownloadDone(pkgAcqTransactionItem * const I, const st
    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");
@@ -1311,8 +1358,7 @@ void pkgAcqMetaClearSig::QueueIndexes(bool const verify)                  /*{{{*/
       // 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->IsArchitectureSupported("all") == false ||
-              TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(Target) == false)
+        if (TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(Target) == false)
         {
            new CleanupItem(Owner, TransactionManager, Target);
            continue;
@@ -1916,7 +1962,7 @@ void pkgAcqBaseIndex::Failed(std::string const &Message,pkgAcquire::MethodConfig
    if (timespec == 0)
       ErrorText.append("<unknown>");
    else
-      ErrorText.append(TimeRFC1123(timespec));
+      ErrorText.append(TimeRFC1123(timespec, true));
    ErrorText.append("\n");
 }
                                                                        /*}}}*/
@@ -1932,44 +1978,33 @@ 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 = GetDiffIndexFileName(Target.Description);
-   Desc.ShortDesc = Target.ShortDesc;
-   Desc.URI = GetDiffIndexURI(Target);
-
-   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
-{
-   if (TransactionManager->LastMetaIndexParser != NULL)
-      return "\nIndex-File: true";
-
-   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                            /*{{{*/
@@ -1979,6 +2014,18 @@ 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;
@@ -1988,7 +2035,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
       std::clog << "pkgAcqDiffIndex::ParseIndexDiff() " << IndexDiffFile
         << std::endl;
 
-   FileFd Fd(IndexDiffFile,FileFd::ReadOnly);
+   FileFd Fd(IndexDiffFile, FileFd::ReadOnly, FileFd::Extension);
    pkgTagFile TF(&Fd);
    if (Fd.IsOpen() == false || Fd.Failed())
       return false;
@@ -2000,6 +2047,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
    HashStringList ServerHashes;
    unsigned long long ServerSize = 0;
 
+   auto const &posix = std::locale("C.UTF-8");
    for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
    {
       std::string tagname = *type;
@@ -2011,6 +2059,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
       string hash;
       unsigned long long size;
       std::stringstream ss(tmp);
+      ss.imbue(posix);
       ss >> hash >> size;
       if (unlikely(hash.empty() == true))
         continue;
@@ -2089,6 +2138,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
       string hash, filename;
       unsigned long long size;
       std::stringstream ss(tmp);
+      ss.imbue(posix);
 
       while (ss >> hash >> size >> filename)
       {
@@ -2147,6 +2197,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
       string hash, filename;
       unsigned long long size;
       std::stringstream ss(tmp);
+      ss.imbue(posix);
 
       while (ss >> hash >> size >> filename)
       {
@@ -2184,6 +2235,7 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
       string hash, filename;
       unsigned long long size;
       std::stringstream ss(tmp);
+      ss.imbue(posix);
 
       // FIXME: all of pdiff supports only .gz compressed patches
       while (ss >> hash >> size >> filename)
@@ -2314,23 +2366,15 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile)       /*{{{*/
       if (unlikely(Final.empty())) // because we wouldn't be called in such a case
         return false;
       std::string const PartialFile = GetPartialFileNameFromURI(Target.URI);
-      if (FileExists(PartialFile) && RemoveFile("Bootstrap-linking", PartialFile) == false)
-      {
-        if (Debug)
-           std::clog << "Bootstrap-linking for patching " << CurrentPackagesFile
-              << " by removing stale " << PartialFile << " failed!" << std::endl;
+      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())
       {
-        std::string const Partial = PartialFile + ext;
-        if (FileExists(Partial) && RemoveFile("Bootstrap-linking", Partial) == false)
-        {
-           if (Debug)
-              std::clog << "Bootstrap-linking for patching " << CurrentPackagesFile
-                 << " by removing stale " << Partial << " failed!" << std::endl;
+        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;
@@ -2363,7 +2407,9 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string const &IndexDiffFile) /*{{{*/
                                                                        /*}}}*/
 void pkgAcqDiffIndex::Failed(string const &Message,pkgAcquire::MethodConfig const * const Cnf)/*{{{*/
 {
-   pkgAcqBaseIndex::Failed(Message,Cnf);
+   if (CommonFailed(GetDiffIndexURI(Target), GetDiffIndexFileName(Target.Description), Message, Cnf))
+      return;
+
    Status = StatDone;
    ExpectedAdditionalItems = 0;
 
@@ -2612,9 +2658,10 @@ std::string pkgAcqIndexDiffs::Custom600Headers() const                   /*{{{*/
    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();
 }
@@ -2761,12 +2808,14 @@ std::string pkgAcqIndexMergeDiffs::Custom600Headers() const             /*{{{*/
       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();
@@ -2778,10 +2827,12 @@ pkgAcqIndexMergeDiffs::~pkgAcqIndexMergeDiffs() {}
 // AcqIndex::AcqIndex - Constructor                                    /*{{{*/
 pkgAcqIndex::pkgAcqIndex(pkgAcquire * const Owner,
                          pkgAcqMetaClearSig * const TransactionManager,
-                         IndexTarget const &Target)
+                         IndexTarget const &Target, bool const Derived)
    : pkgAcqBaseIndex(Owner, TransactionManager, Target), d(NULL), Stage(STAGE_DOWNLOAD),
    CompressionExtensions(Target.Option(IndexTarget::COMPRESSIONTYPES))
 {
+   if (Derived)
+      return;
    Init(Target.URI, Target.Description, Target.ShortDesc);
 
    if(_config->FindB("Debug::Acquire::Transaction", false) == true)
@@ -2814,10 +2865,6 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
    DestFile = GetPartialFileNameFromURI(URI);
    NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, false);
 
-   // store file size of the download to ensure the fetcher gives
-   // accurate progress reporting
-   FileSize = GetExpectedHashes().FileSize();
-
    if (CurrentCompressionExtension == "uncompressed")
    {
       Desc.URI = URI;
@@ -2832,6 +2879,8 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
         Desc.URI = URI + '.' + CurrentCompressionExtension;
         DestFile = DestFile + '.' + CurrentCompressionExtension;
       }
+      else
+        Desc.URI = URI;
 
       HashStringList const Hashes = GetExpectedHashes();
       HashString const * const TargetHash = Hashes.find(NULL);
@@ -2854,6 +2903,9 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
       DestFile = DestFile + '.' + CurrentCompressionExtension;
    }
 
+   // store file size of the download to ensure the fetcher gives
+   // accurate progress reporting
+   FileSize = GetExpectedHashes().FileSize();
 
    Desc.Description = URIDesc;
    Desc.Owner = this;
@@ -2876,7 +2928,7 @@ string pkgAcqIndex::Custom600Headers() const
 
       struct stat Buf;
       if (stat(Final.c_str(),&Buf) == 0)
-        msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+        msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime, false);
    }
 
    if(Target.IsOptional)
@@ -2886,20 +2938,40 @@ string pkgAcqIndex::Custom600Headers() const
 }
                                                                        /*}}}*/
 // 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)
 {
    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;