Fixed protect bug

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

diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index ef58636463b0c1ad59ff000f9c07d06ce8813304..ebef611d83e28bde1c75ad37ee0363d92ec13a21 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 1.11 1998/11/13 04:23:26 jgg Exp $
+// $Id: acquire-item.cc,v 1.23 1999/02/01 08:11:57 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                                                       /*{{{*/


@@ -19,7 +19,7 @@
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/error.h>

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

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


@@ -32,7 +32,8 @@
 // ---------------------------------------------------------------------
 /* */
 pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0),
 // ---------------------------------------------------------------------
 /* */
 pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0),

-                       Mode(0), ID(0), Complete(false), QueueCounter(0)
+                       Mode(0), ID(0), Complete(false), Local(false), 
+                       QueueCounter(0)

 {
    Owner->Add(this);
    Status = StatIdle;
 {
    Owner->Add(this);
    Status = StatIdle;


@@ -50,20 +51,32 @@ pkgAcquire::Item::~Item()
 // ---------------------------------------------------------------------
 /* We return to an idle state if there are still other queues that could
    fetch this object */
 // ---------------------------------------------------------------------
 /* We return to an idle state if there are still other queues that could
    fetch this object */

-void pkgAcquire::Item::Failed(string Message)
+void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf)

 {
    Status = StatIdle;
 {
    Status = StatIdle;

+   ErrorText = LookupTag(Message,"Message");

    if (QueueCounter <= 1)
    {
    if (QueueCounter <= 1)
    {

-      ErrorText = LookupTag(Message,"Message");
+      /* 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;
       Status = StatError;

-      Owner->Dequeue(this);
+      Dequeue();

    }   
 }
                                                                        /*}}}*/
 // Acquire::Item::Start - Item has begun to download                   /*{{{*/
 // ---------------------------------------------------------------------
    }   
 }
                                                                        /*}}}*/
 // 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;
 void pkgAcquire::Item::Start(string Message,unsigned long Size)
 {
    Status = StatFetching;


@@ -146,9 +159,9 @@ 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 "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);

 }
                                                                        /*}}}*/
 // AcqIndex::Done - Finished a fetch                                   /*{{{*/
 }
                                                                        /*}}}*/
 // AcqIndex::Done - Finished a fetch                                   /*{{{*/


@@ -192,7 +205,7 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5)
         return;
       
       Decompression = true;
         return;
       
       Decompression = true;

-      FileSize = 0;
+      Local = true;

       DestFile += ".decomp";
       Desc.URI = "copy:" + FileName;
       QueueURI(Desc);
       DestFile += ".decomp";
       Desc.URI = "copy:" + FileName;
       QueueURI(Desc);


@@ -214,7 +227,7 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5)
    if (FileName == DestFile)
       Erase = true;
    else
    if (FileName == DestFile)
       Erase = true;
    else

-      FileSize = 0;
+      Local = true;

    
    Decompression = true;
    DestFile += ".decomp";
    
    Decompression = true;
    DestFile += ".decomp";


@@ -223,6 +236,14 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5)
    Mode = "gzip";
 }
                                                                        /*}}}*/
    Mode = "gzip";
 }
                                                                        /*}}}*/

+// AcqIndex::Describe - Describe the Item                              /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqIndex::Describe()
+{
+   return Location->PackagesURI();
+}
+                                                                       /*}}}*/

 
 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
 
 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------


@@ -258,9 +279,9 @@ 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                              /*{{{*/


@@ -289,7 +310,7 @@ void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5)
    // We have to copy it into place
    if (FileName != DestFile)
    {
    // We have to copy it into place
    if (FileName != DestFile)
    {

-      FileSize = 0;
+      Local = true;

       Desc.URI = "copy:" + FileName;
       QueueURI(Desc);
       return;
       Desc.URI = "copy:" + FileName;
       QueueURI(Desc);
       return;


@@ -301,16 +322,63 @@ void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5)
    Rename(DestFile,FinalFile);
 }
                                                                        /*}}}*/
    Rename(DestFile,FinalFile);
 }
                                                                        /*}}}*/

+// AcqIndexRel::Describe - Describe the Item                           /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqIndexRel::Describe()
+{
+   return Location->ReleaseURI();
+}
+                                                                       /*}}}*/
+// AcqIndexRel::Failed - Silence failure messages for missing rel files        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqIndexRel::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   // This is the retry counter
+   if (Cnf->LocalOnly == true || 
+       StringToBool(LookupTag(Message,"Transient-Failure"),false) == false)
+   {      
+      Status = StatIdle;
+      Dequeue();
+      return;
+   }
+   
+   Item::Failed(Message,Cnf);
+}
+                                                                       /*}}}*/

 
 // AcqArchive::AcqArchive - Constructor                                        /*{{{*/
 // ---------------------------------------------------------------------
 
 // AcqArchive::AcqArchive - Constructor                                        /*{{{*/
 // ---------------------------------------------------------------------

-/* */
+/* This just sets up the initial fetch environment and queues the first
+   possibilitiy */

 pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
 pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,

-                            pkgRecords *Recs,pkgCache::VerIterator const &Version) :
-               Item(Owner), Version(Version), Sources(Sources), Recs(Recs)
+                            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);
+      
+   // Generate the final file name as: package_version_arch.deb
+   StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' +
+                   QuoteString(Version.VerStr(),"_:") + '_' +
+                   QuoteString(Version.Arch(),"_:.") + ".deb";
+   

    // Select a source
    // Select a source

-   pkgCache::VerFileIterator Vf = Version.FileList();
+   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
    for (; Vf.end() == false; Vf++)
    {
       // Ignore not source sources


@@ -330,17 +398,56 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
       // Grab the text package record
       pkgRecords::Parser &Parse = Recs->Lookup(Vf);
       if (_error->PendingError() == true)
       // Grab the text package record
       pkgRecords::Parser &Parse = Recs->Lookup(Vf);
       if (_error->PendingError() == true)

-        return;
+        return false;

       
       PkgFile = Parse.FileName();
       MD5 = Parse.MD5Hash();
       if (PkgFile.empty() == true)
       
       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)

       {
       {

-        _error->Error("Unable to locate a file name for package %s, "
-                      "perhaps the package files are corrupted.",
-                      Version.ParentPkg().Name());
-        return;
+        // 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());

       }
       }

+
+      // 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);

       
       // Create the item
       Desc.URI = Location->ArchiveURI(PkgFile);
       
       // Create the item
       Desc.URI = Location->ArchiveURI(PkgFile);


@@ -348,22 +455,19 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
       Desc.Owner = this;
       Desc.ShortDesc = Version.ParentPkg().Name();
       QueueURI(Desc);
       Desc.Owner = this;
       Desc.ShortDesc = Version.ParentPkg().Name();
       QueueURI(Desc);

-      
-      DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(PkgFile);
-      return;
+
+      Vf++;
+      return true;

    }
    }

-   
-  _error->Error("I wasn't able to locate file for the %s package. "
-               "This probably means you need to rerun update.",
-               Version.ParentPkg().Name());
-}
+   return false;
+}   

                                                                        /*}}}*/
 // AcqArchive::Done - Finished fetching                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
 {
                                                                        /*}}}*/
 // AcqArchive::Done - Finished fetching                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
 {

-   Item::Done(Message,Size,MD5);
+   Item::Done(Message,Size,Md5Hash);

    
    // Check the size
    if (Size != Version->Size)
    
    // Check the size
    if (Size != Version->Size)


@@ -381,8 +485,8 @@ void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
         return;
       }
    }
         return;
       }
    }

-   
-   // Store the destination filename
+
+   // Grab the output filename

    string FileName = LookupTag(Message,"Filename");
    if (FileName.empty() == true)
    {
    string FileName = LookupTag(Message,"Filename");
    if (FileName.empty() == true)
    {


@@ -390,8 +494,54 @@ void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
       ErrorText = "Method gave a blank filename";
       return;
    }
       ErrorText = "Method gave a blank filename";
       return;
    }

+
+   Complete = true;
+
+   // Reference filename
+   if (FileName != DestFile)
+   {
+      StoreFilename = DestFile = FileName;
+      Local = true;
+      return;
+   }

    
    

-   DestFile = FileName;
+   // Done, move it into position
+   string FinalFile = _config->FindDir("Dir::Cache::Archives");
+   FinalFile += flNotDir(StoreFilename);
+   Rename(DestFile,FinalFile);
+   
+   StoreFilename = DestFile = FinalFile;

    Complete = true;
 }
                                                                        /*}}}*/
    Complete = true;
 }
                                                                        /*}}}*/

+// AcqArchive::Describe - Describe the Item                            /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqArchive::Describe()
+{
+   return Desc.URI;
+}
+                                                                       /*}}}*/
+// 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;
+      }
+      
+      Item::Failed(Message,Cnf);
+   }
+}
+                                                                       /*}}}*/