merge from trunk

[apt.git] / apt-pkg / indexcopy.cc

diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc
index c9dded1347a2d3d9bfbb3a930f2c187fa06ed86c..f88d51fc54d31efcdb380763fc9386bfe9e1b83a 100644 (file)
--- a/apt-pkg/indexcopy.cc
+++ b/apt-pkg/indexcopy.cc
@@ -27,6 +27,8 @@
 #include <sstream>
 #include <unistd.h>
 #include <sys/stat.h>
 #include <sstream>
 #include <unistd.h>
 #include <sys/stat.h>

+#include <sys/types.h>
+#include <fcntl.h>

 #include <stdio.h>
                                                                        /*}}}*/
 
 #include <stdio.h>
                                                                        /*}}}*/
 


@@ -130,9 +132,14 @@ bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
               (*I).c_str() + CDROM.length(),GetFileName());
       string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
       TargetF += URItoFileName(S);
               (*I).c_str() + CDROM.length(),GetFileName());
       string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
       TargetF += URItoFileName(S);

+      FileFd Target;

       if (_config->FindB("APT::CDROM::NoAct",false) == true)
       if (_config->FindB("APT::CDROM::NoAct",false) == true)

+      {

         TargetF = "/dev/null";
         TargetF = "/dev/null";

-      FileFd Target(TargetF,FileFd::WriteEmpty);
+         Target.Open(TargetF,FileFd::WriteExists);
+      } else {
+         Target.Open(TargetF,FileFd::WriteAtomic);
+      }

       FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
       if (_error->PendingError() == true)
         return false;
       FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
       if (_error->PendingError() == true)
         return false;


@@ -275,7 +282,7 @@ bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
       _error->Warning("No valid records were found.");
 
    if (NotFound + WrongSize > 10)
       _error->Warning("No valid records were found.");
 
    if (NotFound + WrongSize > 10)

-      _error->Warning("Alot of entries were discarded, something may be wrong.\n");
+      _error->Warning("A lot of entries were discarded, something may be wrong.\n");

    
 
    return true;
    
 
    return true;


@@ -522,35 +529,37 @@ bool SigVerify::Verify(string prefix, string file, indexRecords *MetaIndex)
 {
    const indexRecords::checkSum *Record = MetaIndex->Lookup(file);
 
 {
    const indexRecords::checkSum *Record = MetaIndex->Lookup(file);
 

+   // we skip non-existing files in the verifcation to support a cdrom
+   // with no Packages file (just a Package.gz), see LP: #255545
+   // (non-existing files are not considered a error)
+   if(!FileExists(prefix+file))
+   {
+      _error->Warning(_("Skipping nonexistent file %s"), string(prefix+file).c_str());
+      return true;
+   }
+

    if (!Record) 
    {
    if (!Record) 
    {

-      _error->Warning("Can't find authentication record for: %s",file.c_str());
+      _error->Warning(_("Can't find authentication record for: %s"), file.c_str());

       return false;
    }
 
       return false;
    }
 

-   MD5Summation sum;
-   FileFd Fd(prefix+file, FileFd::ReadOnly);
-   sum.AddFD(Fd.Fd(), Fd.Size());
-   Fd.Close();
-   string MD5 = (string)sum.Result();
-   
-   if (Record->MD5Hash != MD5)
+   if (!Record->Hash.VerifyFile(prefix+file))

    {
    {

-      _error->Warning("MD5 mismatch for: %s",file.c_str());
+      _error->Warning(_("Hash mismatch for: %s"),file.c_str());

       return false;
    }
 
    if(_config->FindB("Debug::aptcdrom",false)) 
    {
       cout << "File: " << prefix+file << endl;
       return false;
    }
 
    if(_config->FindB("Debug::aptcdrom",false)) 
    {
       cout << "File: " << prefix+file << endl;

-      cout << "Expected MD5sum: " << Record->MD5Hash << endl;
-      cout << "got: " << MD5 << endl << endl;
+      cout << "Expected Hash " << Record->Hash.toStr() << endl;

    }
 
    return true;
 }
    }
 
    return true;
 }

-
-bool SigVerify::CopyMetaIndex(string CDROM, string CDName, 
+                                                                       /*}}}*/
+bool SigVerify::CopyMetaIndex(string CDROM, string CDName,             /*{{{*/

                              string prefix, string file)
 {
       char S[400];
                              string prefix, string file)
 {
       char S[400];


@@ -561,7 +570,7 @@ bool SigVerify::CopyMetaIndex(string CDROM, string CDName,
 
       FileFd Target;
       FileFd Rel;
 
       FileFd Target;
       FileFd Rel;

-      Target.Open(TargetF,FileFd::WriteEmpty);
+      Target.Open(TargetF,FileFd::WriteAtomic);

       Rel.Open(prefix + file,FileFd::ReadOnly);
       if (_error->PendingError() == true)
         return false;
       Rel.Open(prefix + file,FileFd::ReadOnly);
       if (_error->PendingError() == true)
         return false;


@@ -570,8 +579,8 @@ bool SigVerify::CopyMetaIndex(string CDROM, string CDName,
    
       return true;
 }
    
       return true;
 }

-
-bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
+                                                                       /*}}}*/
+bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,        /*{{{*/

                              vector<string> PkgList,vector<string> SrcList)
 {
    if (SigList.size() == 0)
                              vector<string> PkgList,vector<string> SrcList)
 {
    if (SigList.size() == 0)


@@ -588,65 +597,36 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
       indexRecords *MetaIndex = new indexRecords;
       string prefix = *I; 
 
       indexRecords *MetaIndex = new indexRecords;
       string prefix = *I; 
 

-      // a Release.gpg without a Release should never happen
-      if(!FileExists(*I+"Release"))
-        continue;
-
+      string const releasegpg = *I+"Release.gpg";
+      string const release = *I+"Release";

 
 

-      // verify the gpg signature of "Release"
-      // gpg --verify "*I+Release.gpg", "*I+Release"
-      const char *Args[400];
-      unsigned int i = 0;
-
-      string gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
-      string pubringpath = _config->Find("Apt::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg");
-      string releasegpg = *I+"Release.gpg";
-      string release = *I+"Release";
-
-      Args[i++] = gpgvpath.c_str();
-      Args[i++] = "--keyring";
-      Args[i++] = pubringpath.c_str();
-      Configuration::Item const *Opts;
-      Opts = _config->Tree("Acquire::gpgv::Options");
-      if (Opts != 0)
+      // a Release.gpg without a Release should never happen
+      if(FileExists(release) == false)

       {
       {

-         Opts = Opts->Child;
-        for (; Opts != 0; Opts = Opts->Next)
-         {
-            if (Opts->Value.empty() == true)
-               continue;
-            Args[i++] = Opts->Value.c_str();
-           if(i >= 390) { 
-              _error->Error("Argument list from Acquire::gpgv::Options too long. Exiting.");
-              return false;
-           }
-         }
+        delete MetaIndex;
+        continue;

       }
       }

-      
-      Args[i++] = releasegpg.c_str();
-      Args[i++] = release.c_str();
-      Args[i++] = NULL;
-      
+

       pid_t pid = ExecFork();
       if(pid < 0) {
         _error->Error("Fork failed");
         return false;
       }
       pid_t pid = ExecFork();
       if(pid < 0) {
         _error->Error("Fork failed");
         return false;
       }

-      if(pid == 0) {
-        execvp(gpgvpath.c_str(), (char**)Args);
-      }
+      if(pid == 0)
+        RunGPGV(release, releasegpg);
+

       if(!ExecWait(pid, "gpgv")) {
         _error->Warning("Signature verification failed for: %s",
       if(!ExecWait(pid, "gpgv")) {
         _error->Warning("Signature verification failed for: %s",

-                        string(*I+"Release.gpg").c_str());
+                        releasegpg.c_str());

         // something went wrong, don't copy the Release.gpg
         // FIXME: delete any existing gpg file?
         continue;
       }
 
       // Open the Release file and add it to the MetaIndex
         // something went wrong, don't copy the Release.gpg
         // FIXME: delete any existing gpg file?
         continue;
       }
 
       // Open the Release file and add it to the MetaIndex

-      if(!MetaIndex->Load(*I+"Release"))
+      if(!MetaIndex->Load(release))

       {
       {

-        _error->Error(MetaIndex->ErrorText.c_str());
+        _error->Error("%s",MetaIndex->ErrorText.c_str());

         return false;
       }
       
         return false;
       }
       


@@ -658,6 +638,7 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
         if(!Verify(prefix,*I, MetaIndex)) {
            // something went wrong, don't copy the Release.gpg
            // FIXME: delete any existing gpg file?
         if(!Verify(prefix,*I, MetaIndex)) {
            // something went wrong, don't copy the Release.gpg
            // FIXME: delete any existing gpg file?

+           _error->Discard();

            continue;    
         }
       }
            continue;    
         }
       }


@@ -672,10 +653,107 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
 
    return true;
 }
 
    return true;
 }

+                                                                       /*}}}*/
+// SigVerify::RunGPGV - returns the command needed for verify          /*{{{*/
+// ---------------------------------------------------------------------
+/* Generating the commandline for calling gpgv is somehow complicated as
+   we need to add multiple keyrings and user supplied options. Also, as
+   the cdrom code currently can not use the gpgv method we have two places
+   these need to be done - so the place for this method is wrong but better
+   than code duplication… */
+bool SigVerify::RunGPGV(std::string const &File, std::string const &FileGPG,
+                       int const &statusfd, int fd[2])
+{
+   string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
+   // FIXME: remove support for deprecated APT::GPGV setting
+   string const trustedFile = _config->Find("APT::GPGV::TrustedKeyring", _config->FindFile("Dir::Etc::Trusted"));
+   string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts");

 
 

+   bool const Debug = _config->FindB("Debug::Acquire::gpgv", false);

 
 

-bool TranslationsCopy::CopyTranslations(string CDROM,string Name,vector<string> &List,
-                            pkgCdromStatus *log)
+   if (Debug == true)
+   {
+      std::clog << "gpgv path: " << gpgvpath << std::endl;
+      std::clog << "Keyring file: " << trustedFile << std::endl;
+      std::clog << "Keyring path: " << trustedPath << std::endl;
+   }
+
+   std::vector<string> keyrings;
+   if (DirectoryExists(trustedPath))
+     keyrings = GetListOfFilesInDir(trustedPath, "gpg", false, true);
+   if (FileExists(trustedFile) == true)
+     keyrings.push_back(trustedFile);
+
+   std::vector<const char *> Args;
+   Args.reserve(30);
+
+   if (keyrings.empty() == true)
+      return false;
+
+   Args.push_back(gpgvpath.c_str());
+   Args.push_back("--ignore-time-conflict");
+
+   if (statusfd != -1)
+   {
+      Args.push_back("--status-fd");
+      char fd[10];
+      snprintf(fd, sizeof(fd), "%i", statusfd);
+      Args.push_back(fd);
+   }
+
+   for (vector<string>::const_iterator K = keyrings.begin();
+       K != keyrings.end(); ++K)
+   {
+      Args.push_back("--keyring");
+      Args.push_back(K->c_str());
+   }
+
+   Configuration::Item const *Opts;
+   Opts = _config->Tree("Acquire::gpgv::Options");
+   if (Opts != 0)
+   {
+      Opts = Opts->Child;
+      for (; Opts != 0; Opts = Opts->Next)
+      {
+        if (Opts->Value.empty() == true)
+           continue;
+        Args.push_back(Opts->Value.c_str());
+      }
+   }
+
+   Args.push_back(FileGPG.c_str());
+   Args.push_back(File.c_str());
+   Args.push_back(NULL);
+
+   if (Debug == true)
+   {
+      std::clog << "Preparing to exec: " << gpgvpath;
+      for (std::vector<const char *>::const_iterator a = Args.begin(); *a != NULL; ++a)
+        std::clog << " " << *a;
+      std::clog << std::endl;
+   }
+
+   if (statusfd != -1)
+   {
+      int const nullfd = open("/dev/null", O_RDONLY);
+      close(fd[0]);
+      // Redirect output to /dev/null; we read from the status fd
+      dup2(nullfd, STDOUT_FILENO);
+      dup2(nullfd, STDERR_FILENO);
+      // Redirect the pipe to the status fd (3)
+      dup2(fd[1], statusfd);
+
+      putenv((char *)"LANG=");
+      putenv((char *)"LC_ALL=");
+      putenv((char *)"LC_MESSAGES=");
+   }
+
+   execvp(gpgvpath.c_str(), (char **) &Args[0]);
+   return true;
+}
+                                                                       /*}}}*/
+bool TranslationsCopy::CopyTranslations(string CDROM,string Name,      /*{{{*/
+                               vector<string> &List, pkgCdromStatus *log)

 {
    OpProgress *Progress = NULL;
    if (List.size() == 0)
 {
    OpProgress *Progress = NULL;
    if (List.size() == 0)


@@ -768,7 +846,7 @@ bool TranslationsCopy::CopyTranslations(string CDROM,string Name,vector<string>
       TargetF += URItoFileName(S);
       if (_config->FindB("APT::CDROM::NoAct",false) == true)
         TargetF = "/dev/null";
       TargetF += URItoFileName(S);
       if (_config->FindB("APT::CDROM::NoAct",false) == true)
         TargetF = "/dev/null";

-      FileFd Target(TargetF,FileFd::WriteEmpty);
+      FileFd Target(TargetF,FileFd::WriteAtomic);

       FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
       if (_error->PendingError() == true)
         return false;
       FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
       if (_error->PendingError() == true)
         return false;


@@ -842,8 +920,9 @@ bool TranslationsCopy::CopyTranslations(string CDROM,string Name,vector<string>
       _error->Warning("No valid records were found.");
 
    if (NotFound + WrongSize > 10)
       _error->Warning("No valid records were found.");
 
    if (NotFound + WrongSize > 10)

-      _error->Warning("Alot of entries were discarded, something may be wrong.\n");
+      _error->Warning("A lot of entries were discarded, something may be wrong.\n");

    
 
    return true;
 }
    
 
    return true;
 }

+                                                                       /*}}}*/