Adding upstream version 2.7.12.upstream/2.7.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 387 insertions, 0 deletions

diff --git a/apt-pkg/indexfile.cc b/apt-pkg/indexfile.cc
new file mode 100644
index 0000000..1176903
--- /dev/null
+++ b/apt-pkg/indexfile.cc
@@ -0,0 +1,387 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   Index File - Abstraction for an index of archive/source file.
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/acquire.h>
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/deblistparser.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/indexfile.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/pkgcachegen.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/strutl.h>
+
+#include <apt-pkg/debindexfile.h>
+
+#include <sys/stat.h>
+
+#include <clocale>
+#include <cstring>
+#include <memory>
+#include <string>
+#include <vector>
+									/*}}}*/
+
+// Global list of Item supported
+static  pkgIndexFile::Type *ItmList[10];
+pkgIndexFile::Type **pkgIndexFile::Type::GlobalList = ItmList;
+unsigned long pkgIndexFile::Type::GlobalListLen = 0;
+
+// Type::Type - Constructor						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgIndexFile::Type::Type()
+{
+   ItmList[GlobalListLen] = this;
+   GlobalListLen++;
+   Label = NULL;
+}
+									/*}}}*/
+// Type::GetType - Locate the type by name				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgIndexFile::Type *pkgIndexFile::Type::GetType(const char *Type)
+{
+   for (unsigned I = 0; I != GlobalListLen; I++)
+      if (strcmp(GlobalList[I]->Label,Type) == 0)
+	 return GlobalList[I];
+   return 0;
+}
+									/*}}}*/
+pkgIndexFile::pkgIndexFile(bool const Trusted) :			/*{{{*/
+   d(NULL), Trusted(Trusted)
+{
+}
+									/*}}}*/
+// IndexFile::ArchiveInfo - Stub					/*{{{*/
+std::string pkgIndexFile::ArchiveInfo(pkgCache::VerIterator const &) const
+{
+   return std::string();
+}
+									/*}}}*/
+// IndexFile::FindInCache - Stub					/*{{{*/
+pkgCache::PkgFileIterator pkgIndexFile::FindInCache(pkgCache &Cache) const
+{
+   return pkgCache::PkgFileIterator(Cache);
+}
+									/*}}}*/
+// IndexFile::SourceIndex - Stub					/*{{{*/
+std::string pkgIndexFile::SourceInfo(pkgSrcRecords::Parser const &/*Record*/,
+				pkgSrcRecords::File const &/*File*/) const
+{
+   return std::string();
+}
+									/*}}}*/
+
+// IndexTarget - Constructor						/*{{{*/
+IndexTarget::IndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
+      std::string const &LongDesc, std::string const &URI, bool const IsOptional,
+      bool const KeepCompressed, std::map<std::string, std::string> const &Options) :
+   URI(URI), Description(LongDesc), ShortDesc(ShortDesc), MetaKey(MetaKey),
+   IsOptional(IsOptional), KeepCompressed(KeepCompressed), Options(Options)
+{
+}
+									/*}}}*/
+std::string IndexTarget::Option(OptionKeys const EnumKey) const		/*{{{*/
+{
+   std::string Key;
+   switch (EnumKey)
+   {
+#define APT_CASE(X) case X: Key = #X; break
+      APT_CASE(SITE);
+      APT_CASE(RELEASE);
+      APT_CASE(COMPONENT);
+      APT_CASE(LANGUAGE);
+      APT_CASE(ARCHITECTURE);
+      APT_CASE(BASE_URI);
+      APT_CASE(REPO_URI);
+      APT_CASE(IDENTIFIER);
+      APT_CASE(TARGET_OF);
+      APT_CASE(CREATED_BY);
+      APT_CASE(FALLBACK_OF);
+      APT_CASE(PDIFFS);
+      APT_CASE(DEFAULTENABLED);
+      APT_CASE(COMPRESSIONTYPES);
+      APT_CASE(SOURCESENTRY);
+      APT_CASE(BY_HASH);
+      APT_CASE(KEEPCOMPRESSEDAS);
+      APT_CASE(ALLOW_INSECURE);
+      APT_CASE(ALLOW_WEAK);
+      APT_CASE(ALLOW_DOWNGRADE_TO_INSECURE);
+      APT_CASE(INRELEASE_PATH);
+      APT_CASE(SHADOWED);
+#undef APT_CASE
+      case FILENAME:
+      {
+	 auto const M = Options.find("FILENAME");
+	 if (M == Options.end())
+	    return _config->FindDir("Dir::State::lists") + URItoFileName(URI);
+	 return M->second;
+      }
+      case EXISTING_FILENAME:
+	 std::string const filename = Option(FILENAME);
+	 std::vector<std::string> const types = VectorizeString(Option(COMPRESSIONTYPES), ' ');
+	 for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
+	 {
+	    if (t->empty())
+	       continue;
+	    std::string const file = (*t == "uncompressed") ? filename : (filename + "." + *t);
+	    if (FileExists(file))
+	       return file;
+	 }
+	 return "";
+   }
+   std::map<std::string,std::string>::const_iterator const M = Options.find(Key);
+   if (M == Options.end())
+      return "";
+   return M->second;
+}
+									/*}}}*/
+bool IndexTarget::OptionBool(OptionKeys const EnumKey) const		/*{{{*/
+{
+   return StringToBool(Option(EnumKey), false);
+}
+									/*}}}*/
+std::string IndexTarget::Format(std::string format) const		/*{{{*/
+{
+   for (std::map<std::string, std::string>::const_iterator O = Options.begin(); O != Options.end(); ++O)
+   {
+      format = SubstVar(format, std::string("$(") + O->first + ")", O->second);
+   }
+   format = SubstVar(format, "$(METAKEY)", MetaKey);
+   format = SubstVar(format, "$(SHORTDESC)", ShortDesc);
+   format = SubstVar(format, "$(DESCRIPTION)", Description);
+   format = SubstVar(format, "$(URI)", URI);
+   format = SubstVar(format, "$(FILENAME)", Option(IndexTarget::FILENAME));
+   return format;
+}
+									/*}}}*/
+
+pkgDebianIndexTargetFile::pkgDebianIndexTargetFile(IndexTarget const &Target, bool const Trusted) :/*{{{*/
+   pkgDebianIndexFile(Trusted), d(NULL), Target(Target)
+{
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::ArchiveURI(std::string const &File) const/*{{{*/
+{
+   return Target.Option(IndexTarget::REPO_URI) + pkgAcquire::URIEncode(File);
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::Describe(bool const Short) const	/*{{{*/
+{
+   if (Short)
+      return Target.Description;
+   return Target.Description + " (" + IndexFileName() + ")";
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::IndexFileName() const			/*{{{*/
+{
+   std::string const s = Target.Option(IndexTarget::FILENAME);
+   if (FileExists(s))
+      return s;
+
+   std::vector<std::string> const types = VectorizeString(Target.Option(IndexTarget::COMPRESSIONTYPES), ' ');
+   for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
+   {
+      std::string p = s + '.' + *t;
+      if (FileExists(p))
+         return p;
+   }
+   return s;
+}
+									/*}}}*/
+unsigned long pkgDebianIndexTargetFile::Size() const				/*{{{*/
+{
+   unsigned long size = 0;
+
+   /* we need to ignore errors here; if the lists are absent, just return 0 */
+   _error->PushToStack();
+
+   FileFd f(IndexFileName(), FileFd::ReadOnly, FileFd::Extension);
+   if (!f.Failed())
+      size = f.Size();
+
+   if (_error->PendingError() == true)
+       size = 0;
+   _error->RevertToStack();
+
+   return size;
+}
+									/*}}}*/
+bool pkgDebianIndexTargetFile::Exists() const					/*{{{*/
+{
+   if (Target.OptionBool(IndexTarget::SHADOWED))
+      return false;
+   return FileExists(IndexFileName());
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::GetArchitecture() const			/*{{{*/
+{
+   return Target.Option(IndexTarget::ARCHITECTURE);
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::GetComponent() const			/*{{{*/
+{
+   return Target.Option(IndexTarget::COMPONENT);
+}
+									/*}}}*/
+bool pkgDebianIndexTargetFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/*{{{*/
+{
+   if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::Extension) == false)
+      return _error->Error("Problem opening %s",FileName.c_str());
+   return true;
+}
+									/*}}}*/
+std::string pkgDebianIndexTargetFile::GetProgressDescription() const
+{
+   return Target.Description;
+}
+IndexTarget pkgDebianIndexTargetFile::GetIndexTarget() const
+{
+   return Target;
+}
+
+pkgDebianIndexRealFile::pkgDebianIndexRealFile(std::string const &pFile, bool const Trusted) :/*{{{*/
+   pkgDebianIndexFile(Trusted), d(NULL)
+{
+   if (pFile.empty())
+      ;
+   else if (pFile == "/nonexistent/stdin")
+      File = pFile;
+   else
+      File = flAbsPath(pFile);
+}
+									/*}}}*/
+// IndexRealFile::Size - Return the size of the index			/*{{{*/
+unsigned long pkgDebianIndexRealFile::Size() const
+{
+   struct stat S;
+   if (stat(File.c_str(),&S) != 0)
+      return 0;
+   return S.st_size;
+}
+									/*}}}*/
+bool pkgDebianIndexRealFile::Exists() const					/*{{{*/
+{
+   return FileExists(File);
+}
+									/*}}}*/
+std::string pkgDebianIndexRealFile::Describe(bool const /*Short*/) const/*{{{*/
+{
+   return File;
+}
+									/*}}}*/
+std::string pkgDebianIndexRealFile::ArchiveURI(std::string const &/*File*/) const/*{{{*/
+{
+   return "file:" + pkgAcquire::URIEncode(File);
+}
+									/*}}}*/
+std::string pkgDebianIndexRealFile::IndexFileName() const			/*{{{*/
+{
+   return File;
+}
+									/*}}}*/
+std::string pkgDebianIndexRealFile::GetProgressDescription() const
+{
+   return File;
+}
+bool pkgDebianIndexRealFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/*{{{*/
+{
+   if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::Extension) == false)
+      return _error->Error("Problem opening %s",FileName.c_str());
+   return true;
+}
+									/*}}}*/
+
+pkgDebianIndexFile::pkgDebianIndexFile(bool const Trusted) : pkgIndexFile(Trusted)
+{
+}
+pkgDebianIndexFile::~pkgDebianIndexFile()
+{
+}
+pkgCacheListParser * pkgDebianIndexFile::CreateListParser(FileFd &Pkg)
+{
+   if (Pkg.IsOpen() == false)
+      return nullptr;
+   _error->PushToStack();
+   std::unique_ptr<pkgCacheListParser> Parser(new debListParser(&Pkg));
+   bool const newError = _error->PendingError();
+   _error->MergeWithStack();
+   return newError ? nullptr : Parser.release();
+}
+bool pkgDebianIndexFile::Merge(pkgCacheGenerator &Gen,OpProgress * const Prog)
+{
+   std::string const PackageFile = IndexFileName();
+   FileFd Pkg;
+   if (OpenListFile(Pkg, PackageFile) == false)
+      return false;
+   _error->PushToStack();
+   std::unique_ptr<pkgCacheListParser> Parser(CreateListParser(Pkg));
+   bool const newError = _error->PendingError();
+   _error->MergeWithStack();
+   if (newError == false && Parser == nullptr)
+      return true;
+   if (Parser == NULL)
+      return false;
+
+   if (Prog != NULL)
+      Prog->SubProgress(0, GetProgressDescription());
+
+   if (Gen.SelectFile(PackageFile, *this, GetArchitecture(), GetComponent(), GetIndexFlags()) == false)
+      return _error->Error("Problem with SelectFile %s",PackageFile.c_str());
+
+   // Store the IMS information
+   pkgCache::PkgFileIterator File = Gen.GetCurFile();
+   pkgCacheGenerator::Dynamic<pkgCache::PkgFileIterator> DynFile(File);
+   File->Size = Pkg.FileSize();
+   File->mtime = Pkg.ModificationTime();
+
+   if (Gen.MergeList(*Parser) == false)
+      return _error->Error("Problem with MergeList %s",PackageFile.c_str());
+   return true;
+}
+pkgCache::PkgFileIterator pkgDebianIndexFile::FindInCache(pkgCache &Cache) const
+{
+   std::string const FileName = IndexFileName();
+   pkgCache::PkgFileIterator File = Cache.FileBegin();
+   for (; File.end() == false; ++File)
+   {
+       if (File.FileName() == NULL || FileName != File.FileName())
+	 continue;
+
+      struct stat St;
+      if (stat(File.FileName(),&St) != 0)
+      {
+         if (_config->FindB("Debug::pkgCacheGen", false))
+	    std::clog << "DebianIndexFile::FindInCache - stat failed on " << File.FileName() << std::endl;
+	 return pkgCache::PkgFileIterator(Cache);
+      }
+      if ((map_filesize_t)St.st_size != File->Size || St.st_mtime != File->mtime)
+      {
+         if (_config->FindB("Debug::pkgCacheGen", false))
+	    std::clog << "DebianIndexFile::FindInCache - size (" << St.st_size << " <> " << File->Size
+			<< ") or mtime (" << St.st_mtime << " <> " << File->mtime
+			<< ") doesn't match for " << File.FileName() << std::endl;
+	 return pkgCache::PkgFileIterator(Cache);
+      }
+      return File;
+   }
+
+   return File;
+}
+
+pkgIndexFile::~pkgIndexFile() {}
+pkgDebianIndexTargetFile::~pkgDebianIndexTargetFile() {}
+pkgDebianIndexRealFile::~pkgDebianIndexRealFile() {}