failure code if package files could not be downloaded

[apt.git] / apt-pkg / acquire-item.cc

diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index e6eee197bffebd59858a49229e336d61ef6f3d43..25839f85c3990648c826465ecb4e01160826848c 100644 (file)
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: acquire-item.cc,v 1.4 1998/10/24 04:57:56 jgg Exp $
+// $Id: acquire-item.cc,v 1.33 1999/07/10 05:32:25 jgg Exp $

 /* ######################################################################
 
    Acquire Item - Item to acquire
 /* ######################################################################
 
    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.
    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                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/


@@ -18,7 +18,9 @@
 #endif
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
 #endif
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>

-#include <strutl.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>

 
 #include <sys/stat.h>
 #include <unistd.h>
 
 #include <sys/stat.h>
 #include <unistd.h>


@@ -30,7 +32,9 @@
 // Acquire::Item::Item - Constructor                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // 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;
 {
    Owner->Add(this);
    Status = StatIdle;


@@ -46,25 +50,78 @@ pkgAcquire::Item::~Item()
                                                                        /*}}}*/
 // Acquire::Item::Failed - Item failed to download                     /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // Acquire::Item::Failed - Item failed to download                     /*{{{*/
 // ---------------------------------------------------------------------

-/* */
-void pkgAcquire::Item::Failed(string Message)
+/* 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 = StatError;
+   Status = StatIdle;

    ErrorText = LookupTag(Message,"Message");
    if (QueueCounter <= 1)
    ErrorText = LookupTag(Message,"Message");
    if (QueueCounter <= 1)

-      Owner->Dequeue(this);
+   {
+      /* 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                            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // Acquire::Item::Done - Item downloaded OK                            /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgAcquire::Item::Done(string,unsigned long,string)
+void pkgAcquire::Item::Done(string Message,unsigned long Size,string)

 {
 {

+   // 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);
 }
                                                                        /*}}}*/
    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];
+      sprintf(S,"rename failed, %s (%s -> %s).",strerror(errno),
+             From.c_str(),To.c_str());
+      Status = StatError;
+      ErrorText = S;
+   }      
+}
+                                                                       /*}}}*/

 
 // AcqIndex::AcqIndex - Constructor                                    /*{{{*/
 // ---------------------------------------------------------------------
 
 // AcqIndex::AcqIndex - Constructor                                    /*{{{*/
 // ---------------------------------------------------------------------


@@ -73,10 +130,24 @@ void pkgAcquire::Item::Done(string,unsigned long,string)
 pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location) :
              Item(Owner), Location(Location)
 {
 pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location) :
              Item(Owner), Location(Location)
 {

+   Decompression = false;
+   Erase = false;
+   

    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(Location->PackagesURI());
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(Location->PackagesURI());

-   
-   QueueURI(Location->PackagesURI() + ".gz",Location->PackagesInfo());
+
+   // Create the item 
+   Desc.URI = Location->PackagesURI() + ".gz";
+   Desc.Description = Location->PackagesInfo();
+   Desc.Owner = this;
+
+   // Set the short description to the archive component
+   if (Location->Dist[Location->Dist.size() - 1] == '/')
+      Desc.ShortDesc = Location->Dist;
+   else
+      Desc.ShortDesc = Location->Dist + '/' + Location->Section;  
+      
+   QueueURI(Desc);

    
    // Create the Release fetch class
    new pkgAcqIndexRel(Owner,Location);
    
    // Create the Release fetch class
    new pkgAcqIndexRel(Owner,Location);


@@ -92,11 +163,84 @@ string pkgAcqIndex::Custom600Headers()
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
    
    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);
+}
+                                                                       /*}}}*/
+// 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)
+{
+   Item::Done(Message,Size,MD5);
+
+   if (Decompression == true)
+   {
+      // Done, move it into position
+      string FinalFile = _config->FindDir("Dir::State::lists");
+      FinalFile += URItoFileName(Location->PackagesURI());
+      Rename(DestFile,FinalFile);
+      
+      /* We restore the original name to DestFile so that the clean operation
+         will work OK */
+      DestFile = _config->FindDir("Dir::State::lists") + "partial/";
+      DestFile += URItoFileName(Location->PackagesURI());
+      
+      // 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;

    
    

-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   Decompression = true;
+   DestFile += ".decomp";
+   Desc.URI = "gzip:" + FileName,Location->PackagesInfo();
+   QueueURI(Desc);
+   Mode = "gzip";

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

+

 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
 /* The Release file is added to the queue */
 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
 /* The Release file is added to the queue */


@@ -107,7 +251,18 @@ pkgAcqIndexRel::pkgAcqIndexRel(pkgAcquire *Owner,
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(Location->ReleaseURI());
    
    DestFile = _config->FindDir("Dir::State::lists") + "partial/";
    DestFile += URItoFileName(Location->ReleaseURI());
    

-   QueueURI(Location->ReleaseURI(),Location->ReleaseInfo());
+   // Create the item
+   Desc.URI = Location->ReleaseURI();
+   Desc.Description = Location->ReleaseInfo();
+   Desc.Owner = this;
+
+   // Set the short description to the archive component
+   if (Location->Dist[Location->Dist.size() - 1] == '/')
+      Desc.ShortDesc = Location->Dist;
+   else
+      Desc.ShortDesc = Location->Dist + '/' + Location->Section;  
+      
+   QueueURI(Desc);

 }
                                                                        /*}}}*/
 // AcqIndexRel::Custom600Headers - Insert custom request headers       /*{{{*/
 }
                                                                        /*}}}*/
 // AcqIndexRel::Custom600Headers - Insert custom request headers       /*{{{*/


@@ -120,9 +275,9 @@ string pkgAcqIndexRel::Custom600Headers()
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)

-      return string();
+      return "\nIndex-File: true";

    
    

-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);

 }
                                                                        /*}}}*/
 // AcqIndexRel::Done - Item downloaded OK                              /*{{{*/
 }
                                                                        /*}}}*/
 // AcqIndexRel::Done - Item downloaded OK                              /*{{{*/


@@ -139,26 +294,327 @@ void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5)
    {
       Status = StatError;
       ErrorText = "Method gave a blank filename";
    {
       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)
    {
    
    // We have to copy it into place
    if (FileName != DestFile)
    {

-      QueueURI("copy:" + FileName,string());
+      Local = true;
+      Desc.URI = "copy:" + FileName;
+      QueueURI(Desc);

       return;
    }
    
    // Done, move it into position
    string FinalFile = _config->FindDir("Dir::State::lists");
    FinalFile += URItoFileName(Location->ReleaseURI());
       return;
    }
    
    // Done, move it into position
    string FinalFile = _config->FindDir("Dir::State::lists");
    FinalFile += URItoFileName(Location->ReleaseURI());

+   Rename(DestFile,FinalFile);
+}
+                                                                       /*}}}*/
+// 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 file for the %s package. "
+                   "This might mean you need to manually fix this package. (due to missing arch)",
+                   Version.ParentPkg().Name());
+   
+   // Generate the final file name as: package_version_arch.deb
+   StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' +
+                   QuoteString(Version.VerStr(),"_:") + '_' +
+                   QuoteString(Version.Arch(),"_:.") + ".deb";

    
    

-   if (rename(DestFile.c_str(),FinalFile.c_str()) != 0)
+   // 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
+      string PkgFile = flNotDir(Vf.File().FileName());
+      pkgSourceList::const_iterator Location;
+      for (Location = Sources->begin(); Location != Sources->end(); Location++)
+        if (PkgFile == URItoFileName(Location->PackagesURI()))
+           break;
+
+      if (Location == Sources->end())
+        continue;
+      
+      // Grab the text package record
+      pkgRecords::Parser &Parse = Recs->Lookup(Vf);
+      if (_error->PendingError() == true)
+        return false;
+      
+      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
+      Desc.URI = Location->ArchiveURI(PkgFile);
+      Desc.Description = Location->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)
+{
+   Item::Done(Message,Size,Md5Hash);
+   
+   // Check the size
+   if (Size != Version->Size)
+   {
+      _error->Error("Size mismatch for package %s",Version.ParentPkg().Name());
+      return;
+   }
+   
+   // Check the md5
+   if (Md5Hash.empty() == false && MD5.empty() == false)
+   {
+      if (Md5Hash != MD5)
+      {
+        _error->Error("MD5Sum mismatch for package %s",Version.ParentPkg().Name());
+        Rename(DestFile,DestFile + ".FAILED");
+        return;
+      }
+   }
+
+   // Grab the output filename
+   string FileName = LookupTag(Message,"Filename");
+   if (FileName.empty() == true)

    {
    {

-      char S[300];
-      sprintf(S,"rename failed, %s (%s -> %s).",strerror(errno),
-             DestFile.c_str(),FinalFile.c_str());

       Status = StatError;
       Status = StatError;

-      ErrorText = S;
+      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");
+   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), MD5(MD5)
+{
+   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)
+{
+   Item::Done(Message,Size,MD5);
+
+   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;

    }
 }
                                                                        /*}}}*/
    }
 }
                                                                        /*}}}*/