]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/acquire-item.cc
add ims check verify
[apt.git] / apt-pkg / acquire-item.cc
index de03011bffaac409d0f3da988141a44d8e759a2d..e98eaa445f85188b81f1f476d3612b170b089d47 100644 (file)
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
-#include <apt-pkg/md5.h>
 #include <apt-pkg/sha1.h>
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/indexrecords.h>
-#include <apt-pkg/metaindex.h>
-
+#include <apt-pkg/acquire.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/indexfile.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/pkgrecords.h>
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <iostream>
+#include <vector>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <errno.h>
 
 using namespace std;
 
+static void printHashSumComparision(std::string const &URI, HashStringList const &Expected, HashStringList const &Actual) /*{{{*/
+{
+   if (_config->FindB("Debug::Acquire::HashSumMismatch", false) == false)
+      return;
+   std::cerr << std::endl << URI << ":" << std::endl << " Expected Hash: " << std::endl;
+   for (HashStringList::const_iterator hs = Expected.begin(); hs != Expected.end(); ++hs)
+      std::cerr <<  "\t- " << hs->toStr() << std::endl;
+   std::cerr << " Actual Hash: " << std::endl;
+   for (HashStringList::const_iterator hs = Actual.begin(); hs != Actual.end(); ++hs)
+      std::cerr <<  "\t- " << hs->toStr() << std::endl;
+}
+                                                                       /*}}}*/
+
 // Acquire::Item::Item - Constructor                                   /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0),
-                       PartialSize(0), Mode(0), ID(0), Complete(false), 
-                       Local(false), QueueCounter(0)
+pkgAcquire::Item::Item(pkgAcquire *Owner,
+                       HashStringList const &ExpectedHashes,
+                       unsigned long TransactionID)
+   : Owner(Owner), FileSize(0), PartialSize(0), Mode(0), ID(0), Complete(false),
+     Local(false), QueueCounter(0), TransactionID(TransactionID),
+     ExpectedAdditionalItems(0), ExpectedHashes(ExpectedHashes)
 {
    Owner->Add(this);
    Status = StatIdle;
@@ -67,7 +90,8 @@ pkgAcquire::Item::~Item()
 void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
 {
    Status = StatIdle;
-   ErrorText = LookupTag(Message,"Message");
+   if(ErrorText == "")
+      ErrorText = LookupTag(Message,"Message");
    UsedMirror =  LookupTag(Message,"UsedMirror");
    if (QueueCounter <= 1)
    {
@@ -108,12 +132,12 @@ void pkgAcquire::Item::Start(string /*Message*/,unsigned long long Size)
 // Acquire::Item::Done - Item downloaded OK                            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void pkgAcquire::Item::Done(string Message,unsigned long long Size,string Hash,
-                           pkgAcquire::MethodConfig *Cnf)
+void pkgAcquire::Item::Done(string Message,unsigned long long Size,HashStringList const &/*Hash*/,
+                           pkgAcquire::MethodConfig * /*Cnf*/)
 {
    // We just downloaded something..
    string FileName = LookupTag(Message,"Filename");
-   UsedMirror =  LookupTag(Message,"UsedMirror");
+   UsedMirror = LookupTag(Message,"UsedMirror");
    if (Complete == false && !Local && FileName == DestFile)
    {
       if (Owner->Log != 0)
@@ -217,10 +241,12 @@ void pkgAcquire::Item::ReportMirrorFailure(string FailCode)
 // ---------------------------------------------------------------------
 /* Get a sub-index file based on checksums from a 'master' file and
    possibly query additional files */
-pkgAcqSubIndex::pkgAcqSubIndex(pkgAcquire *Owner, string const &URI,
-                                string const &URIDesc, string const &ShortDesc,
-                                HashString const &ExpectedHash)
-   : Item(Owner), ExpectedHash(ExpectedHash)
+pkgAcqSubIndex::pkgAcqSubIndex(pkgAcquire *Owner, 
+                               unsigned long TransactionID,
+                               string const &URI,
+                               string const &URIDesc, string const &ShortDesc,
+                               HashStringList const &ExpectedHashes)
+   : Item(Owner, ExpectedHashes, TransactionID)
 {
    /* XXX: Beware: Currently this class does nothing (of value) anymore ! */
    Debug = _config->FindB("Debug::pkgAcquire::SubIndex",false);
@@ -242,7 +268,7 @@ pkgAcqSubIndex::pkgAcqSubIndex(pkgAcquire *Owner, string const &URI,
 // AcqSubIndex::Custom600Headers - Insert custom request headers       /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqSubIndex::Custom600Headers()
+string pkgAcqSubIndex::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(Desc.URI);
@@ -253,10 +279,10 @@ string pkgAcqSubIndex::Custom600Headers()
    return "\nIndex-File: true\nFail-Ignore: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
 }
                                                                        /*}}}*/
-void pkgAcqSubIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)      /*{{{*/
+void pkgAcqSubIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/
 {
    if(Debug)
-      std::clog << "pkgAcqSubIndex failed: " << Desc.URI << std::endl;
+      std::clog << "pkgAcqSubIndex failed: " << Desc.URI << " with " << Message << std::endl;
 
    Complete = false;
    Status = StatDone;
@@ -265,7 +291,7 @@ void pkgAcqSubIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)   /*{{{*
    // No good Index is provided
 }
                                                                        /*}}}*/
-void pkgAcqSubIndex::Done(string Message,unsigned long long Size,string Md5Hash,       /*{{{*/
+void pkgAcqSubIndex::Done(string Message,unsigned long long Size,HashStringList const &Hashes, /*{{{*/
                           pkgAcquire::MethodConfig *Cnf)
 {
    if(Debug)
@@ -287,7 +313,7 @@ void pkgAcqSubIndex::Done(string Message,unsigned long long Size,string Md5Hash,
       return;
    }
 
-   Item::Done(Message,Size,Md5Hash,Cnf);
+   Item::Done(Message, Size, Hashes, Cnf);
 
    string FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(Desc.URI);
 
@@ -333,21 +359,24 @@ bool pkgAcqSubIndex::ParseIndex(string const &IndexFile)          /*{{{*/
  * the original packages file
  */
 pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner,
-                                string URI,string URIDesc,string ShortDesc,
-                                HashString ExpectedHash)
-   : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash),
-     Description(URIDesc)
+                                 unsigned long TransactionID,
+                                 IndexTarget const * const Target,
+                                HashStringList const &ExpectedHashes,
+                                 indexRecords *MetaIndexParser)
+   : pkgAcqBaseIndex(Owner, TransactionID, Target, ExpectedHashes, 
+                     MetaIndexParser)
 {
    
    Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
 
-   Desc.Description = URIDesc + "/DiffIndex";
+   RealURI = Target->URI;
    Desc.Owner = this;
-   Desc.ShortDesc = ShortDesc;
-   Desc.URI = URI + ".diff/Index";
+   Desc.Description = Target->Description + "/DiffIndex";
+   Desc.ShortDesc = Target->ShortDesc;
+   Desc.URI = Target->URI + ".diff/Index";
 
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(URI) + string(".DiffIndex");
+   DestFile += URItoFileName(Target->URI) + string(".DiffIndex");
 
    if(Debug)
       std::clog << "pkgAcqDiffIndex: " << Desc.URI << std::endl;
@@ -380,7 +409,7 @@ pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner,
 // AcqIndex::Custom600Headers - Insert custom request headers          /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqDiffIndex::Custom600Headers()
+string pkgAcqDiffIndex::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(RealURI) + string(".IndexDiff");
@@ -433,8 +462,9 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile)          /*{{{*/
            std::clog << "Package file is up-to-date" << std::endl;
         // list cleanup needs to know that this file as well as the already
         // present index is ours, so we create an empty diff to save it for us
-        new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc,
-              ExpectedHash, ServerSha1, available_patches);
+        new pkgAcqIndexDiffs(Owner, TransactionID, Target, 
+                              ExpectedHashes, MetaIndexParser, 
+                              ServerSha1, available_patches);
         return true;
       }
       else
@@ -519,14 +549,22 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile)                /*{{{*/
         }
 
         if (pdiff_merge == false)
-           new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc,
-                 ExpectedHash, ServerSha1, available_patches);
-        else
+         {
+           new pkgAcqIndexDiffs(Owner, TransactionID, Target, ExpectedHashes, 
+                                 MetaIndexParser,
+                                 ServerSha1, available_patches);
+         }
+         else
         {
            std::vector<pkgAcqIndexMergeDiffs*> *diffs = new std::vector<pkgAcqIndexMergeDiffs*>(available_patches.size());
            for(size_t i = 0; i < available_patches.size(); ++i)
-              (*diffs)[i] = new pkgAcqIndexMergeDiffs(Owner, RealURI, Description, Desc.ShortDesc, ExpectedHash,
-                    available_patches[i], diffs);
+              (*diffs)[i] = new pkgAcqIndexMergeDiffs(Owner,
+                                                       TransactionID,
+                                                       Target,
+                                                       ExpectedHashes,
+                                                       MetaIndexParser,
+                                                       available_patches[i],
+                                                       diffs);
         }
 
         Complete = false;
@@ -544,27 +582,26 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile)                /*{{{*/
    return false;
 }
                                                                        /*}}}*/
-void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)     /*{{{*/
+void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/
 {
    if(Debug)
-      std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << std::endl
+      std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << " with " << Message << std::endl
                << "Falling back to normal index file acquire" << std::endl;
 
-   new pkgAcqIndex(Owner, RealURI, Description, Desc.ShortDesc, 
-                  ExpectedHash);
+   new pkgAcqIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser);
 
    Complete = false;
    Status = StatDone;
    Dequeue();
 }
                                                                        /*}}}*/
-void pkgAcqDiffIndex::Done(string Message,unsigned long long Size,string Md5Hash,      /*{{{*/
+void pkgAcqDiffIndex::Done(string Message,unsigned long long Size,HashStringList const &Hashes,        /*{{{*/
                           pkgAcquire::MethodConfig *Cnf)
 {
    if(Debug)
       std::clog << "pkgAcqDiffIndex::Done(): " << Desc.URI << std::endl;
 
-   Item::Done(Message,Size,Md5Hash,Cnf);
+   Item::Done(Message, Size, Hashes, Cnf);
 
    string FinalFile;
    FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI);
@@ -594,22 +631,25 @@ void pkgAcqDiffIndex::Done(string Message,unsigned long long Size,string Md5Hash
  * for each diff and the index
  */
 pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner,
-                                  string URI,string URIDesc,string ShortDesc,
-                                  HashString ExpectedHash, 
+                                   unsigned long TransactionID,
+                                   struct IndexTarget const * const Target,
+                                   HashStringList const &ExpectedHashes,
+                                   indexRecords *MetaIndexParser,
                                   string ServerSha1,
                                   vector<DiffInfo> diffs)
-   : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), 
+   : pkgAcqBaseIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser),
      available_patches(diffs), ServerSha1(ServerSha1)
 {
    
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(URI);
+   DestFile += URItoFileName(Target->URI);
 
    Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
 
-   Description = URIDesc;
+   RealURI = Target->URI;
    Desc.Owner = this;
-   Desc.ShortDesc = ShortDesc;
+   Description = Target->Description;
+   Desc.ShortDesc = Target->ShortDesc;
 
    if(available_patches.empty() == true)
    {
@@ -624,13 +664,12 @@ pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner,
    }
 }
                                                                        /*}}}*/
-void pkgAcqIndexDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf)    /*{{{*/
+void pkgAcqIndexDiffs::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/
 {
    if(Debug)
-      std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << std::endl
+      std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << " with " << Message << std::endl
                << "Falling back to normal index file acquire" << std::endl;
-   new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, 
-                  ExpectedHash);
+   new pkgAcqIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser);
    Finish();
 }
                                                                        /*}}}*/
@@ -644,7 +683,7 @@ void pkgAcqIndexDiffs::Finish(bool allDone)
       DestFile = _config->FindDir("Dir::State::lists");
       DestFile += URItoFileName(RealURI);
 
-      if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile))
+      if(HashSums().usable() && !HashSums().VerifyFile(DestFile))
       {
         RenameOnError(HashSumMismatch);
         Dequeue();
@@ -709,7 +748,7 @@ bool pkgAcqIndexDiffs::QueueNextDiff()                                      /*{{{*/
    }
 
    // queue the right diff
-   Desc.URI = string(RealURI) + ".diff/" + available_patches[0].file + ".gz";
+   Desc.URI = RealURI + ".diff/" + available_patches[0].file + ".gz";
    Desc.Description = Description + " " + available_patches[0].file + string(".pdiff");
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(RealURI + ".diff/" + available_patches[0].file);
@@ -722,13 +761,13 @@ bool pkgAcqIndexDiffs::QueueNextDiff()                                    /*{{{*/
    return true;
 }
                                                                        /*}}}*/
-void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size,string Md5Hash,     /*{{{*/
+void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size, HashStringList const &Hashes,      /*{{{*/
                            pkgAcquire::MethodConfig *Cnf)
 {
    if(Debug)
       std::clog << "pkgAcqIndexDiffs::Done(): " << Desc.URI << std::endl;
 
-   Item::Done(Message,Size,Md5Hash,Cnf);
+   Item::Done(Message, Size, Hashes, Cnf);
 
    string FinalFile;
    FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI);
@@ -770,8 +809,9 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size,string Md5Has
 
       // see if there is more to download
       if(available_patches.empty() == false) {
-        new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc,
-                             ExpectedHash, ServerSha1, available_patches);
+        new pkgAcqIndexDiffs(Owner, TransactionID, Target,
+                             ExpectedHashes, MetaIndexParser,
+                              ServerSha1, available_patches);
         return Finish();
       } else 
         return Finish(true);
@@ -780,24 +820,27 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size,string Md5Has
                                                                        /*}}}*/
 // AcqIndexMergeDiffs::AcqIndexMergeDiffs - Constructor                        /*{{{*/
 pkgAcqIndexMergeDiffs::pkgAcqIndexMergeDiffs(pkgAcquire *Owner,
-                                  string const &URI, string const &URIDesc,
-                                  string const &ShortDesc, HashString const &ExpectedHash,
-                                  DiffInfo const &patch,
-                                  std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches)
-   : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash),
-     patch(patch),allPatches(allPatches), State(StateFetchDiff)
+                                             unsigned long TransactionID,
+                                             struct IndexTarget const * const Target,
+                                             HashStringList const &ExpectedHashes,
+                                             indexRecords *MetaIndexParser,
+                                             DiffInfo const &patch,
+                                             std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches)
+  : pkgAcqBaseIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser),
+     patch(patch), allPatches(allPatches), State(StateFetchDiff)
 {
 
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(URI);
+   DestFile += URItoFileName(Target->URI);
 
    Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
 
-   Description = URIDesc;
+   RealURI = Target->URI;
    Desc.Owner = this;
-   Desc.ShortDesc = ShortDesc;
+   Description = Target->Description;
+   Desc.ShortDesc = Target->ShortDesc;
 
-   Desc.URI = string(RealURI) + ".diff/" + patch.file + ".gz";
+   Desc.URI = RealURI + ".diff/" + patch.file + ".gz";
    Desc.Description = Description + " " + patch.file + string(".pdiff");
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(RealURI + ".diff/" + patch.file);
@@ -808,7 +851,7 @@ pkgAcqIndexMergeDiffs::pkgAcqIndexMergeDiffs(pkgAcquire *Owner,
    QueueURI(Desc);
 }
                                                                        /*}}}*/
-void pkgAcqIndexMergeDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/
+void pkgAcqIndexMergeDiffs::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/
 {
    if(Debug)
       std::clog << "pkgAcqIndexMergeDiffs failed: " << Desc.URI << " with " << Message << std::endl;
@@ -826,17 +869,16 @@ void pkgAcqIndexMergeDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
    // first failure means we should fallback
    State = StateErrorDiff;
    std::clog << "Falling back to normal index file acquire" << std::endl;
-   new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc,
-                  ExpectedHash);
+   new pkgAcqIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser);
 }
                                                                        /*}}}*/
-void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string Md5Hash,        /*{{{*/
+void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,HashStringList const &Hashes,  /*{{{*/
                            pkgAcquire::MethodConfig *Cnf)
 {
    if(Debug)
       std::clog << "pkgAcqIndexMergeDiffs::Done(): " << Desc.URI << std::endl;
 
-   Item::Done(Message,Size,Md5Hash,Cnf);
+   Item::Done(Message,Size,Hashes,Cnf);
 
    string const FinalFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
 
@@ -872,7 +914,7 @@ void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string M
    else if (State == StateApplyDiff)
    {
       // see if we really got the expected file
-      if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile))
+      if(ExpectedHashes.usable() && !ExpectedHashes.VerifyFile(DestFile))
       {
         RenameOnError(HashSumMismatch);
         return;
@@ -909,30 +951,43 @@ void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string M
    instantiated to fetch the revision file */   
 pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,
                         string URI,string URIDesc,string ShortDesc,
-                        HashString ExpectedHash, string comprExt)
-   : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash)
+                        HashStringList const  &ExpectedHash, string comprExt)
+   : pkgAcqBaseIndex(Owner, 0, NULL, ExpectedHash, NULL), RealURI(URI)
 {
-   if(comprExt.empty() == true)
-   {
-      // autoselect the compression method
-      std::vector<std::string> types = APT::Configuration::getCompressionTypes();
-      for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
-        comprExt.append(*t).append(" ");
-      if (comprExt.empty() == false)
-        comprExt.erase(comprExt.end()-1);
-   }
-   CompressionExtension = comprExt;
-
+   AutoSelectCompression();
    Init(URI, URIDesc, ShortDesc);
+
+   if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+      std::clog << "New pkgIndex with TransactionID "
+                << TransactionID << std::endl;
 }
-pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target,
-                        HashString const &ExpectedHash, indexRecords const *MetaIndexParser)
-   : Item(Owner), RealURI(Target->URI), ExpectedHash(ExpectedHash)
+                                                                       /*}}}*/
+// AcqIndex::AcqIndex - Constructor                                    /*{{{*/
+// ---------------------------------------------------------------------
+pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,
+                         unsigned long TransactionID,
+                         IndexTarget const *Target,
+                        HashStringList const &ExpectedHash, 
+                         indexRecords *MetaIndexParser)
+   : pkgAcqBaseIndex(Owner, TransactionID, Target, ExpectedHash, 
+                     MetaIndexParser), RealURI(Target->URI)
 {
    // autoselect the compression method
+   AutoSelectCompression();
+   Init(Target->URI, Target->Description, Target->ShortDesc);
+
+   if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+      std::clog << "New pkgIndex with TransactionID "
+                << TransactionID << std::endl;
+}
+                                                                       /*}}}*/
+// AcqIndex::AutoSelectCompression - Select compression                        /*{{{*/
+// ---------------------------------------------------------------------
+void pkgAcqIndex::AutoSelectCompression()
+{
    std::vector<std::string> types = APT::Configuration::getCompressionTypes();
    CompressionExtension = "";
-   if (ExpectedHash.empty() == false)
+   if (ExpectedHashes.usable())
    {
       for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
         if (*t == "uncompressed" || MetaIndexParser->Exists(string(Target->MetaKey).append(".").append(*t)) == true)
@@ -945,17 +1000,7 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target,
    }
    if (CompressionExtension.empty() == false)
       CompressionExtension.erase(CompressionExtension.end()-1);
-
-   // only verify non-optional targets, see acquire-item.h for a FIXME
-   // to make this more flexible
-   if (Target->IsOptional())
-     Verify = false;
-   else
-     Verify = true;
-
-   Init(Target->URI, Target->Description, Target->ShortDesc);
 }
-                                                                       /*}}}*/
 // AcqIndex::Init - defered Constructor                                        /*{{{*/
 void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &ShortDesc) {
    Decompression = false;
@@ -966,9 +1011,27 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &S
 
    std::string const comprExt = CompressionExtension.substr(0, CompressionExtension.find(' '));
    if (comprExt == "uncompressed")
+   {
       Desc.URI = URI;
+      if(Target)
+         MetaKey = string(Target->MetaKey);
+   }
    else
+   {
       Desc.URI = URI + '.' + comprExt;
+      if(Target)
+         MetaKey = string(Target->MetaKey) + '.' + comprExt;
+   }
+
+   // load the filesize
+   if(MetaIndexParser)
+   {
+      indexRecords::checkSum *Record = MetaIndexParser->Lookup(MetaKey);
+      if(Record)
+         FileSize = Record->Size;
+      
+      InitByHashIfNeeded(MetaKey);
+   }
 
    Desc.Description = URIDesc;
    Desc.Owner = this;
@@ -977,10 +1040,42 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &S
    QueueURI(Desc);
 }
                                                                        /*}}}*/
+// AcqIndex::AdjustForByHash - modify URI for by-hash support          /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqIndex::InitByHashIfNeeded(const std::string MetaKey)
+{
+   // 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 ||
+      MetaIndexParser->GetSupportsAcquireByHash())
+   {
+      indexRecords::checkSum *Record = MetaIndexParser->Lookup(MetaKey);
+      if(Record)
+      {
+         // FIXME: should we really use the best hash here? or a fixed one?
+         const HashString *TargetHash = Record->Hashes.find("");
+         std::string ByHash = "/by-hash/" + TargetHash->HashType() + "/" + TargetHash->HashValue();
+         size_t 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",
+            MetaKey.c_str());
+      }
+   }
+}
+                                                                       /*}}}*/
 // AcqIndex::Custom600Headers - Insert custom request headers          /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqIndex::Custom600Headers()
+string pkgAcqIndex::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(RealURI);
@@ -999,6 +1094,9 @@ string pkgAcqIndex::Custom600Headers()
    return msg;
 }
                                                                        /*}}}*/
+// pkgAcqIndex::Failed - getting the indexfile failed                  /*{{{*/
+// ---------------------------------------------------------------------
+/* */
 void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/
 {
    size_t const nextExt = CompressionExtension.find(' ');
@@ -1017,8 +1115,40 @@ void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)   /*{{{*/
    }
 
    Item::Failed(Message,Cnf);
+
+   /// cancel the entire transaction
+   Owner->AbortTransaction(TransactionID);
 }
                                                                        /*}}}*/
+// pkgAcqIndex::GetFinalFilename - Return the full final file path      /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::string pkgAcqIndex::GetFinalFilename(std::string const &URI,
+                                          std::string const &compExt)
+{
+   std::string FinalFile = _config->FindDir("Dir::State::lists");
+   FinalFile += URItoFileName(URI);
+   if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz")
+      FinalFile += ".gz";
+   return FinalFile;
+}
+                                                                       /*}}}*/
+// AcqIndex::ReverifyAfterIMS - Reverify index after an ims-hit        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqIndex::ReverifyAfterIMS(std::string const &FileName)
+{
+   std::string const compExt = CompressionExtension.substr(0, CompressionExtension.find(' '));
+   if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz")
+      DestFile += ".gz";
+
+   // copy FinalFile into partial/ so that we check the hash again
+   string FinalFile = GetFinalFilename(RealURI, compExt);
+   Decompression = true;
+   Desc.URI = "copy:" + FinalFile;
+   QueueURI(Desc);
+}
+                                                                       /*}}}*/
 // AcqIndex::Done - Finished a fetch                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* This goes through a number of states.. On the initial fetch the
@@ -1026,51 +1156,49 @@ void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)  /*{{{*/
    to the uncompressed version of the file. If this is so the file
    is copied into the partial directory. In all other cases the file
    is decompressed with a gzip uri. */
-void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
+void pkgAcqIndex::Done(string Message,unsigned long long Size,HashStringList const &Hashes,
                       pkgAcquire::MethodConfig *Cfg)
 {
-   Item::Done(Message,Size,Hash,Cfg);
+   Item::Done(Message,Size,Hashes,Cfg);
+   std::string const compExt = CompressionExtension.substr(0, CompressionExtension.find(' '));
+
 
    if (Decompression == true)
    {
-      if (_config->FindB("Debug::pkgAcquire::Auth", false))
-      {
-         std::cerr << std::endl << RealURI << ": Computed Hash: " << Hash;
-         std::cerr << "  Expected Hash: " << ExpectedHash.toStr() << std::endl;
-      }
-
-      if (!ExpectedHash.empty() && ExpectedHash.toStr() != Hash)
+      if (ExpectedHashes.usable() && ExpectedHashes != Hashes)
       {
         RenameOnError(HashSumMismatch);
+        printHashSumComparision(RealURI, ExpectedHashes, Hashes);
+         Failed(Message, Cfg);
          return;
       }
 
-      /* Verify the index file for correctness (all indexes must
-       * have a Package field) (LP: #346386) (Closes: #627642) */
-      if (Verify == true)
+      // FIXME: this can go away once we only ever download stuff that
+      //        has a valid hash and we never do GET based probing
+      //
+      /* Always verify the index file for correctness (all indexes must
+       * have a Package field) (LP: #346386) (Closes: #627642) 
+       */
+      FileFd fd(DestFile, FileFd::ReadOnly);
+      // Only test for correctness if the file is not empty (empty is ok)
+      if (fd.FileSize() > 0)
       {
-        FileFd fd(DestFile, FileFd::ReadOnly);
-        // Only test for correctness if the file is not empty (empty is ok)
-        if (fd.FileSize() > 0)
-        {
-           pkgTagSection sec;
-           pkgTagFile tag(&fd);
-
-           // all our current indexes have a field 'Package' in each section
-           if (_error->PendingError() == true || tag.Step(sec) == false || sec.Exists("Package") == false)
-           {
-              RenameOnError(InvalidFormat);
-              return;
-           }
+         pkgTagSection sec;
+         pkgTagFile tag(&fd);
+         
+         // all our current indexes have a field 'Package' in each section
+         if (_error->PendingError() == true || tag.Step(sec) == false || sec.Exists("Package") == false)
+         {
+            RenameOnError(InvalidFormat);
+            Failed(Message, Cfg);
+            return;
          }
       }
        
-      // Done, move it into position
-      string FinalFile = _config->FindDir("Dir::State::lists");
-      FinalFile += URItoFileName(RealURI);
-      Rename(DestFile,FinalFile);
-      chmod(FinalFile.c_str(),0644);
-      
+      // Done, queue for rename on transaction finished
+      PartialFile = DestFile;
+
+#if 1 // FIXME: waaaay too complicated
       /* We restore the original name to DestFile so that the clean operation
          will work OK */
       DestFile = _config->FindDir("Dir::State::lists") + "partial/";
@@ -1079,7 +1207,26 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
       // Remove the compressed version.
       if (Erase == true)
         unlink(DestFile.c_str());
+#endif
+
+      // Done, queue for rename on transaction finished
+      DestFile = GetFinalFilename(RealURI, compExt);
+
       return;
+   } else {
+      // FIXME: use the same method to find 
+      // check the compressed hash too
+      if(MetaKey != "" && Hashes.size() > 0)
+      {
+         indexRecords::checkSum *Record = MetaIndexParser->Lookup(MetaKey);
+         if(Record && Record->Hashes.usable() && Hashes != Record->Hashes)
+         {
+            RenameOnError(HashSumMismatch);
+            printHashSumComparision(RealURI, Record->Hashes, Hashes);
+            Failed(Message, Cfg);
+            return;
+         }
+      }
    }
 
    Erase = false;
@@ -1091,7 +1238,10 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
    {
       // The files timestamp matches
       if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true)
+      {
+         ReverifyAfterIMS(FileName);
         return;
+      }
       Decompression = true;
       Local = true;
       DestFile += ".decomp";
@@ -1108,13 +1258,10 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
       ErrorText = "Method gave a blank filename";
    }
 
-   std::string const compExt = CompressionExtension.substr(0, CompressionExtension.find(' '));
-
    // The files timestamp matches
-   if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) {
-       if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz")
-         // Update DestFile for .gz suffix so that the clean operation keeps it
-         DestFile += ".gz";
+   if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
+   {
+      ReverifyAfterIMS(FileName);
       return;
     }
 
@@ -1162,18 +1309,26 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
 /* The Translation file is added to the queue */
 pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner,
                            string URI,string URIDesc,string ShortDesc) 
-  : pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, HashString(), "")
+  : pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, HashStringList(), "")
 {
 }
-pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, IndexTarget const *Target,
-                        HashString const &ExpectedHash, indexRecords const *MetaIndexParser)
-  : pkgAcqIndex(Owner, Target, ExpectedHash, MetaIndexParser)
+                                                                       /*}}}*/
+pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, 
+                                   unsigned long TransactionID, 
+                                   IndexTarget const * const Target,
+                                   HashStringList const &ExpectedHashes, 
+                                   indexRecords *MetaIndexParser)
+   : pkgAcqIndex(Owner, TransactionID, Target, ExpectedHashes, MetaIndexParser)
 {
+   // load the filesize
+   indexRecords::checkSum *Record = MetaIndexParser->Lookup(string(Target->MetaKey));
+   if(Record)
+      FileSize = Record->Size;
 }
                                                                        /*}}}*/
 // AcqIndexTrans::Custom600Headers - Insert custom request headers     /*{{{*/
 // ---------------------------------------------------------------------
-string pkgAcqIndexTrans::Custom600Headers()
+string pkgAcqIndexTrans::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(RealURI);
@@ -1198,6 +1353,7 @@ void pkgAcqIndexTrans::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
       return;
    }
 
+   // FIXME: this is used often (e.g. in pkgAcqIndexTrans) so refactor
    if (Cnf->LocalOnly == true || 
        StringToBool(LookupTag(Message,"Transient-Failure"),false) == false)
    {      
@@ -1211,15 +1367,15 @@ void pkgAcqIndexTrans::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
    Item::Failed(Message,Cnf);
 }
                                                                        /*}}}*/
-pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner,                                /*{{{*/
+pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner,                        /*{{{*/
+                             unsigned long TransactionID,
                             string URI,string URIDesc,string ShortDesc,
-                            string MetaIndexURI, string MetaIndexURIDesc,
-                            string MetaIndexShortDesc,
+                             string MetaIndexFile,
                             const vector<IndexTarget*>* IndexTargets,
                             indexRecords* MetaIndexParser) :
-   Item(Owner), RealURI(URI), MetaIndexURI(MetaIndexURI),
-   MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc),
-   MetaIndexParser(MetaIndexParser), IndexTargets(IndexTargets)
+   Item(Owner, HashStringList(), TransactionID), RealURI(URI), 
+   MetaIndexParser(MetaIndexParser), MetaIndexFile(MetaIndexFile),
+   IndexTargets(IndexTargets), AuthPass(false), IMSHit(false)
 {
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(URI);
@@ -1229,57 +1385,43 @@ pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner,                         /*{{{*/
    // partial download anyway
    unlink(DestFile.c_str());
 
+   // set the TransactionID
+   if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+      std::clog << "New pkgAcqMetaSig with TransactionID "
+                << TransactionID << std::endl;
+
    // Create the item
    Desc.Description = URIDesc;
    Desc.Owner = this;
    Desc.ShortDesc = ShortDesc;
    Desc.URI = URI;
-      
-   string Final = _config->FindDir("Dir::State::lists");
-   Final += URItoFileName(RealURI);
-   if (RealFileExists(Final) == true)
-   {
-      // File was already in place.  It needs to be re-downloaded/verified
-      // because Release might have changed, we do give it a different
-      // name than DestFile because otherwise the http method will
-      // send If-Range requests and there are too many broken servers
-      // out there that do not understand them
-      LastGoodSig = DestFile+".reverify";
-      Rename(Final,LastGoodSig);
-   }
 
    QueueURI(Desc);
 }
                                                                        /*}}}*/
 pkgAcqMetaSig::~pkgAcqMetaSig()                                                /*{{{*/
 {
-   // if the file was never queued undo file-changes done in the constructor
-   if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false &&
-        LastGoodSig.empty() == false)
-   {
-      string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
-      if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true)
-        Rename(LastGoodSig, Final);
-   }
-
 }
                                                                        /*}}}*/
 // pkgAcqMetaSig::Custom600Headers - Insert custom request headers     /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqMetaSig::Custom600Headers()
+string pkgAcqMetaSig::Custom600Headers() const
 {
+   string FinalFile = _config->FindDir("Dir::State::lists");
+   FinalFile += URItoFileName(RealURI);
+
    struct stat Buf;
-   if (stat(LastGoodSig.c_str(),&Buf) != 0)
+   if (stat(FinalFile.c_str(),&Buf) != 0)
       return "\nIndex-File: true";
 
    return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
 }
 
-void pkgAcqMetaSig::Done(string Message,unsigned long long Size,string MD5,
+void pkgAcqMetaSig::Done(string Message,unsigned long long Size, HashStringList const &Hashes,
                         pkgAcquire::MethodConfig *Cfg)
 {
-   Item::Done(Message,Size,MD5,Cfg);
+   Item::Done(Message, Size, Hashes, Cfg);
 
    string FileName = LookupTag(Message,"Filename");
    if (FileName.empty() == true)
@@ -1298,18 +1440,40 @@ void pkgAcqMetaSig::Done(string Message,unsigned long long Size,string MD5,
       return;
    }
 
-   Complete = true;
-
-   // put the last known good file back on i-m-s hit (it will
-   // be re-verified again)
-   // Else do nothing, we have the new file in DestFile then
    if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
-      Rename(LastGoodSig, DestFile);
+      IMSHit = true;
+
+   // adjust paths if its a ims-hit
+   if(IMSHit)
+   {
+      string FinalFile = _config->FindDir("Dir::State::lists");
+      FinalFile += URItoFileName(RealURI);
+         
+      DestFile = PartialFile = FinalFile;
+   }
+
+   // queue for verify
+   if(AuthPass == false)
+   {
+      AuthPass = true;
+      Desc.URI = "gpgv:" + DestFile;
+      DestFile = MetaIndexFile;
+      QueueURI(Desc);
+      return;
+   }
 
-   // queue a pkgAcqMetaIndex to be verified against the sig we just retrieved
-   new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, 
-                      MetaIndexShortDesc,  DestFile, IndexTargets, 
-                      MetaIndexParser);
+   // queue to copy the file in place if it was not a ims hit, on ims
+   // hit the file is already at the right place
+   if(IMSHit == false)
+   {
+      PartialFile = _config->FindDir("Dir::State::lists") + "partial/";
+      PartialFile += URItoFileName(RealURI);
+      
+      DestFile = _config->FindDir("Dir::State::lists");
+      DestFile += URItoFileName(RealURI);
+   }
+
+   Complete = true;
 
 }
                                                                        /*}}}*/
@@ -1317,26 +1481,13 @@ void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/
 {
    string Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
 
-   // if we get a network error we fail gracefully
-   if(Status == StatTransientNetworkError)
-   {
-      Item::Failed(Message,Cnf);
-      // move the sigfile back on transient network failures 
-      if(FileExists(LastGoodSig))
-        Rename(LastGoodSig,Final);
-
-      // set the status back to , Item::Failed likes to reset it
-      Status = pkgAcquire::Item::StatTransientNetworkError;
-      return;
-   }
-
-   // Delete any existing sigfile when the acquire failed
-   unlink(Final.c_str());
-
-   // queue a pkgAcqMetaIndex with no sigfile
-   new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc,
-                      "", IndexTargets, MetaIndexParser);
+   // this ensures that any file in the lists/ dir is removed by the
+   // transaction
+   DestFile =  _config->FindDir("Dir::State::lists") + "partial/";
+   DestFile += URItoFileName(RealURI);
+   PartialFile = "";
 
+   // FIXME: this is used often (e.g. in pkgAcqIndexTrans) so refactor
    if (Cnf->LocalOnly == true || 
        StringToBool(LookupTag(Message,"Transient-Failure"),false) == false)
    {      
@@ -1346,34 +1497,50 @@ void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/
       Dequeue();
       return;
    }
-   
    Item::Failed(Message,Cnf);
 }
                                                                        /*}}}*/
 pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire *Owner,                    /*{{{*/
+                                 unsigned long TransactionID,
                                 string URI,string URIDesc,string ShortDesc,
-                                string SigFile,
-                                const vector<struct IndexTarget*>* IndexTargets,
+                                 string MetaIndexSigURI,string MetaIndexSigURIDesc, string MetaIndexSigShortDesc,
+                                const vector<IndexTarget*>* IndexTargets,
                                 indexRecords* MetaIndexParser) :
-   Item(Owner), RealURI(URI), SigFile(SigFile), IndexTargets(IndexTargets),
-   MetaIndexParser(MetaIndexParser), AuthPass(false), IMSHit(false)
+   Item(Owner, HashStringList(), TransactionID), RealURI(URI), IndexTargets(IndexTargets),
+   MetaIndexParser(MetaIndexParser), AuthPass(false), IMSHit(false),
+   MetaIndexSigURI(MetaIndexSigURI), MetaIndexSigURIDesc(MetaIndexSigURIDesc),
+   MetaIndexSigShortDesc(MetaIndexSigShortDesc)
+{
+   if(TransactionID == 0)
+      this->TransactionID = (unsigned long)this;
+
+   if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+      std::clog << "New pkgAcqMetaIndex with TransactionID "
+                << TransactionID << std::endl;
+
+   Init(URIDesc, ShortDesc);
+}
+                                                                       /*}}}*/
+// pkgAcqMetaIndex::Init - Delayed constructor                         /*{{{*/
+void pkgAcqMetaIndex::Init(std::string URIDesc, std::string ShortDesc)
 {
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(URI);
+   DestFile += URItoFileName(RealURI);
 
    // Create the item
    Desc.Description = URIDesc;
    Desc.Owner = this;
    Desc.ShortDesc = ShortDesc;
-   Desc.URI = URI;
+   Desc.URI = RealURI;
 
+   // we expect more item
+   ExpectedAdditionalItems = IndexTargets->size();
    QueueURI(Desc);
 }
-                                                                       /*}}}*/
 // pkgAcqMetaIndex::Custom600Headers - Insert custom request headers   /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqMetaIndex::Custom600Headers()
+string pkgAcqMetaIndex::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(RealURI);
@@ -1385,10 +1552,10 @@ string pkgAcqMetaIndex::Custom600Headers()
    return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
 }
                                                                        /*}}}*/
-void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash, /*{{{*/
+void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,HashStringList const &Hashes,        /*{{{*/
                           pkgAcquire::MethodConfig *Cfg)
 {
-   Item::Done(Message,Size,Hash,Cfg);
+   Item::Done(Message,Size,Hashes,Cfg);
 
    // MetaIndexes are done in two passes: one to download the
    // metaindex with an appropriate method, and a second to verify it
@@ -1410,16 +1577,14 @@ void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash,  /
 
       if (SigFile == "")
       {
-         // There was no signature file, so we are finished.  Download
-         // the indexes and do only hashsum verification if possible
+         // load indexes, the signature will downloaded afterwards
          MetaIndexParser->Load(DestFile);
-         QueueIndexes(false);
+         QueueIndexes(true);
       }
       else
       {
          // There was a signature file, so pass it to gpgv for
          // verification
-
          if (_config->FindB("Debug::pkgAcquire::Auth", false))
             std::cerr << "Metaindex acquired, queueing gpg verification ("
                       << SigFile << "," << DestFile << ")\n";
@@ -1437,8 +1602,8 @@ void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash,    /
       FinalFile += URItoFileName(RealURI);
       if (SigFile == DestFile)
         SigFile = FinalFile;
-      Rename(DestFile,FinalFile);
-      chmod(FinalFile.c_str(),0644);
+      // queue for copy in place
+      PartialFile = DestFile;
       DestFile = FinalFile;
    }
 }
@@ -1473,14 +1638,24 @@ void pkgAcqMetaIndex::RetrievalDone(string Message)                     /*{{{*/
       if (SigFile == DestFile)
       {
         SigFile = FinalFile;
+#if 0
         // constructor of pkgAcqMetaClearSig moved it out of the way,
         // now move it back in on IMS hit for the 'old' file
         string const OldClearSig = DestFile + ".reverify";
         if (RealFileExists(OldClearSig) == true)
            Rename(OldClearSig, FinalFile);
+#endif
       }
       DestFile = FinalFile;
    }
+
+   // queue a signature
+   if(SigFile != DestFile)
+      new pkgAcqMetaSig(Owner, TransactionID, 
+                        MetaIndexSigURI, MetaIndexSigURIDesc,
+                        MetaIndexSigShortDesc, DestFile, IndexTargets, 
+                        MetaIndexParser);
+
    Complete = true;
 }
                                                                        /*}}}*/
@@ -1510,6 +1685,7 @@ void pkgAcqMetaIndex::AuthDone(string Message)                            /*{{{*/
    // Download further indexes with verification
    QueueIndexes(true);
 
+#if 0
    // is it a clearsigned MetaIndex file?
    if (DestFile == SigFile)
       return;
@@ -1519,20 +1695,11 @@ void pkgAcqMetaIndex::AuthDone(string Message)                          /*{{{*/
       URItoFileName(RealURI) + ".gpg";
    Rename(SigFile,VerifiedSigFile);
    chmod(VerifiedSigFile.c_str(),0644);
+#endif
 }
                                                                        /*}}}*/
 void pkgAcqMetaIndex::QueueIndexes(bool verify)                                /*{{{*/
 {
-#if 0
-   /* Reject invalid, existing Release files (LP: #346386) (Closes: #627642)
-    * FIXME: Disabled; it breaks unsigned repositories without hashes */
-   if (!verify && FileExists(DestFile) && !MetaIndexParser->Load(DestFile))
-   {
-      Status = StatError;
-      ErrorText = MetaIndexParser->ErrorText;
-      return;
-   }
-#endif
    bool transInRelease = false;
    {
       std::vector<std::string> const keys = MetaIndexParser->MetaKeys();
@@ -1545,11 +1712,13 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify)                         /*{{{*/
         }
    }
 
-   for (vector <struct IndexTarget*>::const_iterator Target = IndexTargets->begin();
+   // at this point the real Items are loaded in the fetcher
+   ExpectedAdditionalItems = 0;
+   for (vector <IndexTarget*>::const_iterator Target = IndexTargets->begin();
         Target != IndexTargets->end();
         ++Target)
    {
-      HashString ExpectedIndexHash;
+      HashStringList ExpectedIndexHashes;
       const indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey);
       bool compressedAvailable = false;
       if (Record == NULL)
@@ -1558,7 +1727,7 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify)                           /*{{{*/
         {
            std::vector<std::string> types = APT::Configuration::getCompressionTypes();
            for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
-              if (MetaIndexParser->Exists(string((*Target)->MetaKey).append(".").append(*t)) == true)
+              if (MetaIndexParser->Exists((*Target)->MetaKey + "." + *t) == true)
               {
                  compressedAvailable = true;
                  break;
@@ -1573,14 +1742,16 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify)                         /*{{{*/
       }
       else
       {
-        ExpectedIndexHash = Record->Hash;
+        ExpectedIndexHashes = Record->Hashes;
         if (_config->FindB("Debug::pkgAcquire::Auth", false))
         {
-           std::cerr << "Queueing: " << (*Target)->URI << std::endl;
-           std::cerr << "Expected Hash: " << ExpectedIndexHash.toStr() << std::endl;
+           std::cerr << "Queueing: " << (*Target)->URI << std::endl
+              << "Expected Hash:" << std::endl;
+           for (HashStringList::const_iterator hs = ExpectedIndexHashes.begin(); hs != ExpectedIndexHashes.end(); ++hs)
+              std::cerr <<  "\t- " << hs->toStr() << std::endl;
            std::cerr << "For: " << Record->MetaKeyFilename << std::endl;
         }
-        if (verify == true && ExpectedIndexHash.empty() == true && (*Target)->IsOptional() == false)
+        if (verify == true && ExpectedIndexHashes.empty() == true && (*Target)->IsOptional() == false)
         {
            Status = StatAuthError;
            strprintf(ErrorText, _("Unable to find hash sum for '%s' in Release file"), (*Target)->MetaKey.c_str());
@@ -1591,16 +1762,16 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify)                         /*{{{*/
       if ((*Target)->IsOptional() == true)
       {
         if ((*Target)->IsSubIndex() == true)
-           new pkgAcqSubIndex(Owner, (*Target)->URI, (*Target)->Description,
-                               (*Target)->ShortDesc, ExpectedIndexHash);
+           new pkgAcqSubIndex(Owner, TransactionID, 
+                               (*Target)->URI, (*Target)->Description,
+                               (*Target)->ShortDesc, ExpectedIndexHashes);
         else if (transInRelease == false || Record != NULL || compressedAvailable == true)
         {
            if (_config->FindB("Acquire::PDiffs",true) == true && transInRelease == true &&
-               MetaIndexParser->Exists(string((*Target)->MetaKey).append(".diff/Index")) == true)
-              new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description,
-                                  (*Target)->ShortDesc, ExpectedIndexHash);
+               MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true)
+              new pkgAcqDiffIndex(Owner, TransactionID, *Target, ExpectedIndexHashes, MetaIndexParser);
            else
-              new pkgAcqIndexTrans(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
+              new pkgAcqIndexTrans(Owner, TransactionID, *Target, ExpectedIndexHashes, MetaIndexParser);
         }
         continue;
       }
@@ -1610,11 +1781,10 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify)                         /*{{{*/
          in the Meta-Index file. Ideal would be if pkgAcqDiffIndex would test this
          instead, but passing the required info to it is to much hassle */
       if(_config->FindB("Acquire::PDiffs",true) == true && (verify == false ||
-         MetaIndexParser->Exists(string((*Target)->MetaKey).append(".diff/Index")) == true))
-        new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description,
-                            (*Target)->ShortDesc, ExpectedIndexHash);
+         MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true))
+        new pkgAcqDiffIndex(Owner, TransactionID, *Target, ExpectedIndexHashes, MetaIndexParser);
       else
-        new pkgAcqIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
+        new pkgAcqIndex(Owner, TransactionID, *Target, ExpectedIndexHashes, MetaIndexParser);
    }
 }
                                                                        /*}}}*/
@@ -1635,7 +1805,7 @@ bool pkgAcqMetaIndex::VerifyVendor(string Message)                        /*{{{*/
       missingkeys += (Fingerprint);
    }
    if(!missingkeys.empty())
-      _error->Warning("%s", string(msg+missingkeys).c_str());
+      _error->Warning("%s", (msg + missingkeys).c_str());
 
    string Transformed = MetaIndexParser->GetExpectedDist();
 
@@ -1698,22 +1868,19 @@ bool pkgAcqMetaIndex::VerifyVendor(string Message)                      /*{{{*/
 // pkgAcqMetaIndex::Failed - no Release file present or no signature file present      /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+void pkgAcqMetaIndex::Failed(string Message,
+                             pkgAcquire::MethodConfig * /*Cnf*/)
 {
    if (AuthPass == true)
    {
       // gpgv method failed, if we have a good signature 
-      string LastGoodSigFile = _config->FindDir("Dir::State::lists").append("partial/").append(URItoFileName(RealURI));
+      string LastGoodSigFile = _config->FindDir("Dir::State::lists");
+      LastGoodSigFile += URItoFileName(RealURI);
       if (DestFile != SigFile)
         LastGoodSigFile.append(".gpg");
-      LastGoodSigFile.append(".reverify");
 
       if(FileExists(LastGoodSigFile))
       {
-        string VerifiedSigFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
-        if (DestFile != SigFile)
-           VerifiedSigFile.append(".gpg");
-        Rename(LastGoodSigFile, VerifiedSigFile);
         Status = StatTransientNetworkError;
         _error->Warning(_("An error occurred during the signature "
                           "verification. The repository is not updated "
@@ -1728,6 +1895,7 @@ void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
         _error->Error(_("GPG error: %s: %s"),
                         Desc.Description.c_str(),
                         LookupTag(Message,"Message").c_str());
+         Status = StatError;
         return;
       } else {
         _error->Warning(_("GPG error: %s: %s"),
@@ -1752,9 +1920,9 @@ void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
                                       "Release");
         SigFile = FinalFile;
       }
-      Rename(DestFile,FinalFile);
-      chmod(FinalFile.c_str(),0644);
 
+      // Done, queue for rename on transaction finished
+      PartialFile = DestFile;
       DestFile = FinalFile;
    }
 
@@ -1763,18 +1931,33 @@ void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
    QueueIndexes(false);
 }
                                                                        /*}}}*/
+
+void pkgAcqMetaIndex::Finished()
+{
+   if(_config->FindB("Debug::Acquire::Transaction", false) == true)
+      std::clog << "Finished: " << DestFile <<std::endl;
+   if(Owner->TransactionHasError(TransactionID) == false && 
+      TransactionID > 0)
+      Owner->CommitTransaction(TransactionID);
+}
+
+
 pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner,              /*{{{*/
                string const &URI, string const &URIDesc, string const &ShortDesc,
                string const &MetaIndexURI, string const &MetaIndexURIDesc, string const &MetaIndexShortDesc,
                string const &MetaSigURI, string const &MetaSigURIDesc, string const &MetaSigShortDesc,
-               const vector<struct IndexTarget*>* IndexTargets,
+               const vector<IndexTarget*>* IndexTargets,
                indexRecords* MetaIndexParser) :
-       pkgAcqMetaIndex(Owner, URI, URIDesc, ShortDesc, "", IndexTargets, MetaIndexParser),
-       MetaIndexURI(MetaIndexURI), MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc),
-       MetaSigURI(MetaSigURI), MetaSigURIDesc(MetaSigURIDesc), MetaSigShortDesc(MetaSigShortDesc)
+   pkgAcqMetaIndex(Owner, (unsigned long)this, URI, URIDesc, ShortDesc, MetaSigURI, MetaSigURIDesc,MetaSigShortDesc, IndexTargets, MetaIndexParser),
+       MetaIndexURI(MetaIndexURI), MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc),
+       MetaSigURI(MetaSigURI), MetaSigURIDesc(MetaSigURIDesc), MetaSigShortDesc(MetaSigShortDesc)
 {
    SigFile = DestFile;
 
+   // index targets + (worst case:) Release/Release.gpg
+   ExpectedAdditionalItems = IndexTargets->size() + 2;
+
+#if 0
    // keep the old InRelease around in case of transistent network errors
    string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
    if (RealFileExists(Final) == true)
@@ -1782,10 +1965,12 @@ pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner,               /*{{{*/
       string const LastGoodSig = DestFile + ".reverify";
       Rename(Final,LastGoodSig);
    }
+#endif
 }
                                                                        /*}}}*/
 pkgAcqMetaClearSig::~pkgAcqMetaClearSig()                              /*{{{*/
 {
+#if 0
    // if the file was never queued undo file-changes done in the constructor
    if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false)
    {
@@ -1794,12 +1979,13 @@ pkgAcqMetaClearSig::~pkgAcqMetaClearSig()                               /*{{{*/
       if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true)
         Rename(LastGoodSig, Final);
    }
+#endif
 }
                                                                        /*}}}*/
 // pkgAcqMetaClearSig::Custom600Headers - Insert custom request headers        /*{{{*/
 // ---------------------------------------------------------------------
 // FIXME: this can go away once the InRelease file is used widely
-string pkgAcqMetaClearSig::Custom600Headers()
+string pkgAcqMetaClearSig::Custom600Headers() const
 {
    string Final = _config->FindDir("Dir::State::lists");
    Final += URItoFileName(RealURI);
@@ -1807,7 +1993,6 @@ string pkgAcqMetaClearSig::Custom600Headers()
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
    {
-      Final = DestFile + ".reverify";
       if (stat(Final.c_str(),&Buf) != 0)
         return "\nIndex-File: true\nFail-Ignore: true\n";
    }
@@ -1817,18 +2002,33 @@ string pkgAcqMetaClearSig::Custom600Headers()
                                                                        /*}}}*/
 void pkgAcqMetaClearSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/
 {
+   // we failed, we will not get additional items from this method
+   ExpectedAdditionalItems = 0;
+
+   // if we expect a ClearTextSignature (InRelase), ensure that
+   // this is what we get and if not fail to queue a 
+   // Release/Release.gpg, see #346386
+   if (!StartsWithGPGClearTextSignature(DestFile))
+   {
+      //_error->Error(_("Does not start with a clear sign signature"));
+      pkgAcquire::Item::Failed(Message, Cnf);
+      return;
+   }
+
+
    if (AuthPass == false)
    {
-      // Remove the 'old' InRelease file if we try Release.gpg now as otherwise
-      // the file will stay around and gives a false-auth impression (CVE-2012-0214)
+      // Queue the 'old' InRelease file for removal if we try Release.gpg
+      // as otherwise the file will stay around and gives a false-auth
+      // impression (CVE-2012-0214)
       string FinalFile = _config->FindDir("Dir::State::lists");
       FinalFile.append(URItoFileName(RealURI));
-      if (FileExists(FinalFile))
-        unlink(FinalFile.c_str());
+      PartialFile = "";
+      DestFile = FinalFile;
 
-      new pkgAcqMetaSig(Owner,
-                       MetaSigURI, MetaSigURIDesc, MetaSigShortDesc,
+      new pkgAcqMetaIndex(Owner, TransactionID,
                        MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc,
+                       MetaSigURI, MetaSigURIDesc, MetaSigShortDesc,
                        IndexTargets, MetaIndexParser);
       if (Cnf->LocalOnly == true ||
          StringToBool(LookupTag(Message, "Transient-Failure"), false) == false)
@@ -1845,7 +2045,7 @@ void pkgAcqMetaClearSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*
 pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
                             pkgRecords *Recs,pkgCache::VerIterator const &Version,
                             string &StoreFilename) :
-               Item(Owner), Version(Version), Sources(Sources), Recs(Recs), 
+               Item(Owner, HashStringList()), Version(Version), Sources(Sources), Recs(Recs), 
                StoreFilename(StoreFilename), Vf(Version.FileList()), 
               Trusted(false)
 {
@@ -1856,7 +2056,7 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
       _error->Error(_("I wasn't able to locate a file for the %s package. "
                      "This might mean you need to manually fix this package. "
                      "(due to missing arch)"),
-                   Version.ParentPkg().Name());
+                   Version.ParentPkg().FullName().c_str());
       return;
    }
    
@@ -1930,7 +2130,6 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
    checking later. */
 bool pkgAcqArchive::QueueNext()
 {
-   string const ForceHash = _config->Find("Acquire::ForceHash");
    for (; Vf.end() == false; ++Vf)
    {
       // Ignore not source sources
@@ -1951,31 +2150,10 @@ bool pkgAcqArchive::QueueNext()
       pkgRecords::Parser &Parse = Recs->Lookup(Vf);
       if (_error->PendingError() == true)
         return false;
-      
+
       string PkgFile = Parse.FileName();
-      if (ForceHash.empty() == false)
-      {
-        if(stringcasecmp(ForceHash, "sha512") == 0)
-           ExpectedHash = HashString("SHA512", Parse.SHA512Hash());
-        else if(stringcasecmp(ForceHash, "sha256") == 0)
-           ExpectedHash = HashString("SHA256", Parse.SHA256Hash());
-        else if (stringcasecmp(ForceHash, "sha1") == 0)
-           ExpectedHash = HashString("SHA1", Parse.SHA1Hash());
-        else
-           ExpectedHash = HashString("MD5Sum", Parse.MD5Hash());
-      }
-      else
-      {
-        string Hash;
-        if ((Hash = Parse.SHA512Hash()).empty() == false)
-           ExpectedHash = HashString("SHA512", Hash);
-        else if ((Hash = Parse.SHA256Hash()).empty() == false)
-           ExpectedHash = HashString("SHA256", Hash);
-        else if ((Hash = Parse.SHA1Hash()).empty() == false)
-           ExpectedHash = HashString("SHA1", Hash);
-        else
-           ExpectedHash = HashString("MD5Sum", Parse.MD5Hash());
-      }
+      ExpectedHashes = Parse.Hashes();
+
       if (PkgFile.empty() == true)
         return _error->Error(_("The package index files are corrupted. No Filename: "
                              "field for package %s."),
@@ -1984,7 +2162,7 @@ bool pkgAcqArchive::QueueNext()
       Desc.URI = Index->ArchiveURI(PkgFile);
       Desc.Description = Index->ArchiveInfo(Version);
       Desc.Owner = this;
-      Desc.ShortDesc = Version.ParentPkg().Name();
+      Desc.ShortDesc = Version.ParentPkg().FullName(true);
 
       // See if we already have the file. (Legacy filenames)
       FileSize = Version->Size;
@@ -2051,10 +2229,6 @@ bool pkgAcqArchive::QueueNext()
 
       // Create the item
       Local = false;
-      Desc.URI = Index->ArchiveURI(PkgFile);
-      Desc.Description = Index->ArchiveInfo(Version);
-      Desc.Owner = this;
-      Desc.ShortDesc = Version.ParentPkg().Name();
       QueueURI(Desc);
 
       ++Vf;
@@ -2066,10 +2240,10 @@ bool pkgAcqArchive::QueueNext()
 // AcqArchive::Done - Finished fetching                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash,
+void pkgAcqArchive::Done(string Message,unsigned long long Size, HashStringList const &CalcHashes,
                         pkgAcquire::MethodConfig *Cfg)
 {
-   Item::Done(Message,Size,CalcHash,Cfg);
+   Item::Done(Message, Size, CalcHashes, Cfg);
    
    // Check the size
    if (Size != Version->Size)
@@ -2077,11 +2251,12 @@ void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash,
       RenameOnError(SizeMismatch);
       return;
    }
-   
-   // Check the hash
-   if(ExpectedHash.toStr() != CalcHash)
+
+   // FIXME: could this empty() check impose *any* sort of security issue?
+   if(ExpectedHashes.usable() && ExpectedHashes != CalcHashes)
    {
       RenameOnError(HashSumMismatch);
+      printHashSumComparision(DestFile, ExpectedHashes, CalcHashes);
       return;
    }
 
@@ -2153,7 +2328,7 @@ void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
                                                                        /*}}}*/
 // AcqArchive::IsTrusted - Determine whether this archive comes from a trusted source /*{{{*/
 // ---------------------------------------------------------------------
-bool pkgAcqArchive::IsTrusted()
+APT_PURE bool pkgAcqArchive::IsTrusted() const
 {
    return Trusted;
 }
@@ -2172,11 +2347,11 @@ void pkgAcqArchive::Finished()
 // AcqFile::pkgAcqFile - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* The file is added to the queue */
-pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string Hash,
+pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI, HashStringList const &Hashes,
                       unsigned long long Size,string Dsc,string ShortDesc,
                       const string &DestDir, const string &DestFilename,
                        bool IsIndexFile) :
-                       Item(Owner), ExpectedHash(Hash), IsIndexFile(IsIndexFile)
+                       Item(Owner, Hashes), IsIndexFile(IsIndexFile)
 {
    Retries = _config->FindI("Acquire::Retries",0);
    
@@ -2213,15 +2388,16 @@ pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string Hash,
 // AcqFile::Done - Item downloaded OK                                  /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-void pkgAcqFile::Done(string Message,unsigned long long Size,string CalcHash,
+void pkgAcqFile::Done(string Message,unsigned long long Size,HashStringList const &CalcHashes,
                      pkgAcquire::MethodConfig *Cnf)
 {
-   Item::Done(Message,Size,CalcHash,Cnf);
+   Item::Done(Message,Size,CalcHashes,Cnf);
 
    // Check the hash
-   if(!ExpectedHash.empty() && ExpectedHash.toStr() != CalcHash)
+   if(ExpectedHashes.usable() && ExpectedHashes != CalcHashes)
    {
       RenameOnError(HashSumMismatch);
+      printHashSumComparision(DestFile, ExpectedHashes, CalcHashes);
       return;
    }
    
@@ -2292,7 +2468,7 @@ void pkgAcqFile::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
 // AcqIndex::Custom600Headers - Insert custom request headers          /*{{{*/
 // ---------------------------------------------------------------------
 /* The only header we use is the last-modified header. */
-string pkgAcqFile::Custom600Headers()
+string pkgAcqFile::Custom600Headers() const
 {
    if (IsIndexFile)
       return "\nIndex-File: true";