]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/acquire-item.cc
* imported changes from apt--main
[apt.git] / apt-pkg / acquire-item.cc
index e1049dde9efc589a412f4e06eac234c60d8c2d25..6227888b6a933e71f2ba0c539ed7e63ef7a034d6 100644 (file)
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: acquire-item.cc,v 1.3 1998/10/22 04:56:38 jgg Exp $
+// $Id: acquire-item.cc,v 1.46 2003/02/02 22:19:17 jgg Exp $
 /* ######################################################################
 
    Acquire Item - Item to acquire
@@ -9,7 +9,7 @@
    cannot create an item that fetches two uri's to two files at the same 
    time. The pkgAcqIndex class creates a second class upon instantiation
    to fetch the other index files because of this.
-   
+
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
 #endif
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
-#include <strutl.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>
 
+#include <apti18n.h>
+    
 #include <sys/stat.h>
 #include <unistd.h>
+#include <errno.h>
+#include <string>
+#include <stdio.h>
                                                                        /*}}}*/
 
+using std::string;
+
 // Acquire::Item::Item - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* */
-pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), QueueCounter(0)
+pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0),
+                       PartialSize(0), Mode(0), ID(0), Complete(false), 
+                       Local(false), QueueCounter(0)
 {
    Owner->Add(this);
+   Status = StatIdle;
 }
                                                                        /*}}}*/
 // Acquire::Item::~Item - Destructor                                   /*{{{*/
@@ -40,21 +53,106 @@ pkgAcquire::Item::~Item()
    Owner->Remove(this);
 }
                                                                        /*}}}*/
+// Acquire::Item::Failed - Item failed to download                     /*{{{*/
+// ---------------------------------------------------------------------
+/* We return to an idle state if there are still other queues that could
+   fetch this object */
+void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   Status = StatIdle;
+   ErrorText = LookupTag(Message,"Message");
+   if (QueueCounter <= 1)
+   {
+      /* This indicates that the file is not available right now but might
+         be sometime later. If we do a retry cycle then this should be
+        retried [CDROMs] */
+      if (Cnf->LocalOnly == true &&
+         StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+      {
+        Status = StatIdle;
+        Dequeue();
+        return;
+      }
+      
+      Status = StatError;
+      Dequeue();
+   }   
+}
+                                                                       /*}}}*/
+// Acquire::Item::Start - Item has begun to download                   /*{{{*/
+// ---------------------------------------------------------------------
+/* Stash status and the file size. Note that setting Complete means 
+   sub-phases of the acquire process such as decompresion are operating */
+void pkgAcquire::Item::Start(string /*Message*/,unsigned long Size)
+{
+   Status = StatFetching;
+   if (FileSize == 0 && Complete == false)
+      FileSize = Size;
+}
+                                                                       /*}}}*/
+// Acquire::Item::Done - Item downloaded OK                            /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcquire::Item::Done(string Message,unsigned long Size,string,
+                           pkgAcquire::MethodConfig *Cnf)
+{
+   // We just downloaded something..
+   string FileName = LookupTag(Message,"Filename");
+   if (Complete == false && FileName == DestFile)
+   {
+      if (Owner->Log != 0)
+        Owner->Log->Fetched(Size,atoi(LookupTag(Message,"Resume-Point","0").c_str()));
+   }
+
+   if (FileSize == 0)
+      FileSize= Size;
+   
+   Status = StatDone;
+   ErrorText = string();
+   Owner->Dequeue(this);
+}
+                                                                       /*}}}*/
+// Acquire::Item::Rename - Rename a file                               /*{{{*/
+// ---------------------------------------------------------------------
+/* This helper function is used by alot of item methods as thier final
+   step */
+void pkgAcquire::Item::Rename(string From,string To)
+{
+   if (rename(From.c_str(),To.c_str()) != 0)
+   {
+      char S[300];
+      snprintf(S,sizeof(S),_("rename failed, %s (%s -> %s)."),strerror(errno),
+             From.c_str(),To.c_str());
+      Status = StatError;
+      ErrorText = S;
+   }   
+}
+                                                                       /*}}}*/
 
 // AcqIndex::AcqIndex - Constructor                                    /*{{{*/
 // ---------------------------------------------------------------------
 /* The package file is added to the queue and a second class is 
-   instantiated to fetch the revision file */
-pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location) :
-             Item(Owner), Location(Location)
+   instantiated to fetch the revision file */   
+pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,
+                        string URI,string URIDesc,string ShortDesc) :
+                      Item(Owner), RealURI(URI)
 {
-   DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(Location->PackagesURI());
-   
-   QueueURI(Location->PackagesURI() + ".gz",Location->PackagesInfo());
+   Decompression = false;
+   Erase = false;
    
-   // Create the Release fetch class
-   new pkgAcqIndexRel(Owner,Location);
+   DestFile = _config->FindDir("Dir::State::lists") + "partial/";
+   DestFile += URItoFileName(URI);
+
+   // Create the item
+   if(FileExists("/usr/bin/bzip2"))
+      Desc.URI = URI + ".bz2"; 
+   else
+      Desc.URI = URI + ".gz"; 
+   Desc.Description = URIDesc;
+   Desc.Owner = this;
+   Desc.ShortDesc = ShortDesc;
+      
+   QueueURI(Desc);
 }
                                                                        /*}}}*/
 // AcqIndex::Custom600Headers - Insert custom request headers          /*{{{*/
@@ -63,26 +161,133 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location)
 string pkgAcqIndex::Custom600Headers()
 {
    string Final = _config->FindDir("Dir::State::lists");
-   Final += URItoFileName(Location->PackagesURI());
+   Final += URItoFileName(RealURI);
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
-      return string();
+      return "\nIndex-File: true";
+   
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+}
+                                                                       /*}}}*/
+
+void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   // no .bz2 found, retry with .gz
+   if(Desc.URI.substr(Desc.URI.size()-3,Desc.URI.size()-1) == "bz2") {
+      Desc.URI = Desc.URI.substr(0,Desc.URI.size()-3) + "gz"; 
+      QueueURI(Desc);
+      return;
+   }
+
    
-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   Item::Failed(Message,Cnf);
+}
+
+
+// AcqIndex::Done - Finished a fetch                                   /*{{{*/
+// ---------------------------------------------------------------------
+/* This goes through a number of states.. On the initial fetch the
+   method could possibly return an alternate filename which points
+   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 Size,string MD5,
+                      pkgAcquire::MethodConfig *Cfg)
+{
+   Item::Done(Message,Size,MD5,Cfg);
+
+   if (Decompression == true)
+   {
+      // Done, move it into position
+      string FinalFile = _config->FindDir("Dir::State::lists");
+      FinalFile += URItoFileName(RealURI);
+      Rename(DestFile,FinalFile);
+      chmod(FinalFile.c_str(),0644);
+      
+      /* We restore the original name to DestFile so that the clean operation
+         will work OK */
+      DestFile = _config->FindDir("Dir::State::lists") + "partial/";
+      DestFile += URItoFileName(RealURI);
+      
+      // Remove the compressed version.
+      if (Erase == true)
+        unlink(DestFile.c_str());
+      return;
+   }
+
+   Erase = false;
+   Complete = true;
+   
+   // Handle the unzipd case
+   string FileName = LookupTag(Message,"Alt-Filename");
+   if (FileName.empty() == false)
+   {
+      // The files timestamp matches
+      if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true)
+        return;
+      
+      Decompression = true;
+      Local = true;
+      DestFile += ".decomp";
+      Desc.URI = "copy:" + FileName;
+      QueueURI(Desc);
+      Mode = "copy";
+      return;
+   }
+
+   FileName = LookupTag(Message,"Filename");
+   if (FileName.empty() == true)
+   {
+      Status = StatError;
+      ErrorText = "Method gave a blank filename";
+   }
+   
+   // The files timestamp matches
+   if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
+      return;
+
+   if (FileName == DestFile)
+      Erase = true;
+   else
+      Local = true;
+   
+   string compExt = Desc.URI.substr(Desc.URI.size()-3,Desc.URI.size()-1);
+   char *decompProg;
+   if(compExt == "bz2") 
+      decompProg = "bzip2";
+   else if(compExt == ".gz") 
+      decompProg = "gzip";
+   else {
+      _error->Error("Unsupported extension: %s", compExt.c_str());
+      return;
+   }
+
+   Decompression = true;
+   DestFile += ".decomp";
+   Desc.URI = string(decompProg) + ":" + FileName;
+   QueueURI(Desc);
+   Mode = decompProg;
 }
                                                                        /*}}}*/
+
 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
 /* The Release file is added to the queue */
 pkgAcqIndexRel::pkgAcqIndexRel(pkgAcquire *Owner,
-                              const pkgSourceList::Item *Location) :
-                Item(Owner), Location(Location)
+                           string URI,string URIDesc,string ShortDesc) :
+                      Item(Owner), RealURI(URI)
 {
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
-   DestFile += URItoFileName(Location->ReleaseURI());
+   DestFile += URItoFileName(URI);
    
-   QueueURI(Location->ReleaseURI(),Location->ReleaseInfo());
+   // Create the item
+   Desc.URI = URI;
+   Desc.Description = URIDesc;
+   Desc.ShortDesc = ShortDesc;
+   Desc.Owner = this;
+
+   QueueURI(Desc);
 }
                                                                        /*}}}*/
 // AcqIndexRel::Custom600Headers - Insert custom request headers       /*{{{*/
@@ -91,12 +296,446 @@ pkgAcqIndexRel::pkgAcqIndexRel(pkgAcquire *Owner,
 string pkgAcqIndexRel::Custom600Headers()
 {
    string Final = _config->FindDir("Dir::State::lists");
-   Final += URItoFileName(Location->ReleaseURI());
+   Final += URItoFileName(RealURI);
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
-      return string();
+      return "\nIndex-File: true";
+   
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+}
+                                                                       /*}}}*/
+// AcqIndexRel::Done - Item downloaded OK                              /*{{{*/
+// ---------------------------------------------------------------------
+/* The release file was not placed into the download directory then
+   a copy URI is generated and it is copied there otherwise the file
+   in the partial directory is moved into .. and the URI is finished. */
+void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5,
+                         pkgAcquire::MethodConfig *Cfg)
+{
+   Item::Done(Message,Size,MD5,Cfg);
+
+   string FileName = LookupTag(Message,"Filename");
+   if (FileName.empty() == true)
+   {
+      Status = StatError;
+      ErrorText = "Method gave a blank filename";
+      return;
+   }
+
+   Complete = true;
+   
+   // The files timestamp matches
+   if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
+      return;
+   
+   // We have to copy it into place
+   if (FileName != DestFile)
+   {
+      Local = true;
+      Desc.URI = "copy:" + FileName;
+      QueueURI(Desc);
+      return;
+   }
+   
+   // Done, move it into position
+   string FinalFile = _config->FindDir("Dir::State::lists");
+   FinalFile += URItoFileName(RealURI);
+   Rename(DestFile,FinalFile);
+   
+   chmod(FinalFile.c_str(),0644);
+}
+                                                                       /*}}}*/
+// AcqIndexRel::Failed - Silence failure messages for missing rel files        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqIndexRel::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   if (Cnf->LocalOnly == true || 
+       StringToBool(LookupTag(Message,"Transient-Failure"),false) == false)
+   {      
+      // Ignore this
+      Status = StatDone;
+      Complete = false;
+      Dequeue();
+      return;
+   }
+   
+   Item::Failed(Message,Cnf);
+}
+                                                                       /*}}}*/
+
+// AcqArchive::AcqArchive - Constructor                                        /*{{{*/
+// ---------------------------------------------------------------------
+/* This just sets up the initial fetch environment and queues the first
+   possibilitiy */
+pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
+                            pkgRecords *Recs,pkgCache::VerIterator const &Version,
+                            string &StoreFilename) :
+               Item(Owner), Version(Version), Sources(Sources), Recs(Recs), 
+               StoreFilename(StoreFilename), Vf(Version.FileList())
+{
+   Retries = _config->FindI("Acquire::Retries",0);
+
+   if (Version.Arch() == 0)
+   {
+      _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());
+      return;
+   }
+   
+   /* We need to find a filename to determine the extension. We make the
+      assumption here that all the available sources for this version share
+      the same extension.. */
+   // Skip not source sources, they do not have file fields.
+   for (; Vf.end() == false; Vf++)
+   {
+      if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0)
+        continue;
+      break;
+   }
+   
+   // Does not really matter here.. we are going to fail out below
+   if (Vf.end() != true)
+   {     
+      // If this fails to get a file name we will bomb out below.
+      pkgRecords::Parser &Parse = Recs->Lookup(Vf);
+      if (_error->PendingError() == true)
+        return;
+            
+      // Generate the final file name as: package_version_arch.foo
+      StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' +
+                     QuoteString(Version.VerStr(),"_:") + '_' +
+                     QuoteString(Version.Arch(),"_:.") + 
+                     "." + flExtension(Parse.FileName());
+   }
+      
+   // Select a source
+   if (QueueNext() == false && _error->PendingError() == false)
+      _error->Error(_("I wasn't able to locate file for the %s package. "
+                   "This might mean you need to manually fix this package."),
+                   Version.ParentPkg().Name());
+}
+                                                                       /*}}}*/
+// AcqArchive::QueueNext - Queue the next file source                  /*{{{*/
+// ---------------------------------------------------------------------
+/* This queues the next available file version for download. It checks if
+   the archive is already available in the cache and stashs the MD5 for
+   checking later. */
+bool pkgAcqArchive::QueueNext()
+{   
+   for (; Vf.end() == false; Vf++)
+   {
+      // Ignore not source sources
+      if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0)
+        continue;
+
+      // Try to cross match against the source list
+      pkgIndexFile *Index;
+      if (Sources->FindIndex(Vf.File(),Index) == false)
+           continue;
+      
+      // Grab the text package record
+      pkgRecords::Parser &Parse = Recs->Lookup(Vf);
+      if (_error->PendingError() == true)
+        return false;
+      
+      string PkgFile = Parse.FileName();
+      MD5 = Parse.MD5Hash();
+      if (PkgFile.empty() == true)
+        return _error->Error(_("The package index files are corrupted. No Filename: "
+                             "field for package %s."),
+                             Version.ParentPkg().Name());
+
+      // See if we already have the file. (Legacy filenames)
+      FileSize = Version->Size;
+      string FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile);
+      struct stat Buf;
+      if (stat(FinalFile.c_str(),&Buf) == 0)
+      {
+        // Make sure the size matches
+        if ((unsigned)Buf.st_size == Version->Size)
+        {
+           Complete = true;
+           Local = true;
+           Status = StatDone;
+           StoreFilename = DestFile = FinalFile;
+           return true;
+        }
+        
+        /* Hmm, we have a file and its size does not match, this means it is
+           an old style mismatched arch */
+        unlink(FinalFile.c_str());
+      }
+
+      // Check it again using the new style output filenames
+      FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename);
+      if (stat(FinalFile.c_str(),&Buf) == 0)
+      {
+        // Make sure the size matches
+        if ((unsigned)Buf.st_size == Version->Size)
+        {
+           Complete = true;
+           Local = true;
+           Status = StatDone;
+           StoreFilename = DestFile = FinalFile;
+           return true;
+        }
+        
+        /* Hmm, we have a file and its size does not match, this shouldnt
+           happen.. */
+        unlink(FinalFile.c_str());
+      }
+
+      DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename);
+      
+      // Check the destination file
+      if (stat(DestFile.c_str(),&Buf) == 0)
+      {
+        // Hmm, the partial file is too big, erase it
+        if ((unsigned)Buf.st_size > Version->Size)
+           unlink(DestFile.c_str());
+        else
+           PartialSize = Buf.st_size;
+      }
+      
+      // 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++;
+      return true;
+   }
+   return false;
+}   
+                                                                       /*}}}*/
+// AcqArchive::Done - Finished fetching                                        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash,
+                        pkgAcquire::MethodConfig *Cfg)
+{
+   Item::Done(Message,Size,Md5Hash,Cfg);
+   
+   // Check the size
+   if (Size != Version->Size)
+   {
+      Status = StatError;
+      ErrorText = _("Size mismatch");
+      return;
+   }
+   
+   // Check the md5
+   if (Md5Hash.empty() == false && MD5.empty() == false)
+   {
+      if (Md5Hash != MD5)
+      {
+        Status = StatError;
+        ErrorText = _("MD5Sum mismatch");
+        Rename(DestFile,DestFile + ".FAILED");
+        return;
+      }
+   }
+
+   // Grab the output filename
+   string FileName = LookupTag(Message,"Filename");
+   if (FileName.empty() == true)
+   {
+      Status = StatError;
+      ErrorText = "Method gave a blank filename";
+      return;
+   }
+
+   Complete = true;
+
+   // Reference filename
+   if (FileName != DestFile)
+   {
+      StoreFilename = DestFile = FileName;
+      Local = true;
+      return;
+   }
+   
+   // Done, move it into position
+   string FinalFile = _config->FindDir("Dir::Cache::Archives");
+   FinalFile += flNotDir(StoreFilename);
+   Rename(DestFile,FinalFile);
+   
+   StoreFilename = DestFile = FinalFile;
+   Complete = true;
+}
+                                                                       /*}}}*/
+// AcqArchive::Failed - Failure handler                                        /*{{{*/
+// ---------------------------------------------------------------------
+/* Here we try other sources */
+void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   ErrorText = LookupTag(Message,"Message");
+   
+   /* We don't really want to retry on failed media swaps, this prevents 
+      that. An interesting observation is that permanent failures are not
+      recorded. */
+   if (Cnf->Removable == true && 
+       StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+   {
+      // Vf = Version.FileList();
+      while (Vf.end() == false) Vf++;
+      StoreFilename = string();
+      Item::Failed(Message,Cnf);
+      return;
+   }
+   
+   if (QueueNext() == false)
+   {
+      // This is the retry counter
+      if (Retries != 0 &&
+         Cnf->LocalOnly == false &&
+         StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+      {
+        Retries--;
+        Vf = Version.FileList();
+        if (QueueNext() == true)
+           return;
+      }
+      
+      StoreFilename = string();
+      Item::Failed(Message,Cnf);
+   }
+}
+                                                                       /*}}}*/
+// AcqArchive::Finished - Fetching has finished, tidy up               /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqArchive::Finished()
+{
+   if (Status == pkgAcquire::Item::StatDone &&
+       Complete == true)
+      return;
+   StoreFilename = string();
+}
+                                                                       /*}}}*/
+
+// AcqFile::pkgAcqFile - Constructor                                   /*{{{*/
+// ---------------------------------------------------------------------
+/* The file is added to the queue */
+pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string MD5,
+                      unsigned long Size,string Dsc,string ShortDesc) :
+                       Item(Owner), Md5Hash(MD5)
+{
+   Retries = _config->FindI("Acquire::Retries",0);
+   
+   DestFile = flNotDir(URI);
+   
+   // Create the item
+   Desc.URI = URI;
+   Desc.Description = Dsc;
+   Desc.Owner = this;
+
+   // Set the short description to the archive component
+   Desc.ShortDesc = ShortDesc;
+      
+   // Get the transfer sizes
+   FileSize = Size;
+   struct stat Buf;
+   if (stat(DestFile.c_str(),&Buf) == 0)
+   {
+      // Hmm, the partial file is too big, erase it
+      if ((unsigned)Buf.st_size > Size)
+        unlink(DestFile.c_str());
+      else
+        PartialSize = Buf.st_size;
+   }
+   
+   QueueURI(Desc);
+}
+                                                                       /*}}}*/
+// AcqFile::Done - Item downloaded OK                                  /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqFile::Done(string Message,unsigned long Size,string MD5,
+                     pkgAcquire::MethodConfig *Cnf)
+{
+   // Check the md5
+   if (Md5Hash.empty() == false && MD5.empty() == false)
+   {
+      if (Md5Hash != MD5)
+      {
+        Status = StatError;
+        ErrorText = "MD5Sum mismatch";
+        Rename(DestFile,DestFile + ".FAILED");
+        return;
+      }
+   }
+   
+   Item::Done(Message,Size,MD5,Cnf);
+
+   string FileName = LookupTag(Message,"Filename");
+   if (FileName.empty() == true)
+   {
+      Status = StatError;
+      ErrorText = "Method gave a blank filename";
+      return;
+   }
+
+   Complete = true;
+   
+   // The files timestamp matches
+   if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true)
+      return;
+   
+   // We have to copy it into place
+   if (FileName != DestFile)
+   {
+      Local = true;
+      if (_config->FindB("Acquire::Source-Symlinks",true) == false ||
+         Cnf->Removable == true)
+      {
+        Desc.URI = "copy:" + FileName;
+        QueueURI(Desc);
+        return;
+      }
+      
+      // Erase the file if it is a symlink so we can overwrite it
+      struct stat St;
+      if (lstat(DestFile.c_str(),&St) == 0)
+      {
+        if (S_ISLNK(St.st_mode) != 0)
+           unlink(DestFile.c_str());
+      }
+      
+      // Symlink the file
+      if (symlink(FileName.c_str(),DestFile.c_str()) != 0)
+      {
+        ErrorText = "Link to " + DestFile + " failure ";
+        Status = StatError;
+        Complete = false;
+      }      
+   }
+}
+                                                                       /*}}}*/
+// AcqFile::Failed - Failure handler                                   /*{{{*/
+// ---------------------------------------------------------------------
+/* Here we try other sources */
+void pkgAcqFile::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   ErrorText = LookupTag(Message,"Message");
+   
+   // This is the retry counter
+   if (Retries != 0 &&
+       Cnf->LocalOnly == false &&
+       StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+   {
+      Retries--;
+      QueueURI(Desc);
+      return;
+   }
    
-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   Item::Failed(Message,Cnf);
 }
                                                                        /*}}}*/