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-rw-r--r--apt-pkg/indexfile.cc384
1 files changed, 384 insertions, 0 deletions
diff --git a/apt-pkg/indexfile.cc b/apt-pkg/indexfile.cc
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+// -*- 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);
+#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 /*{{{*/
+{
+ 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() {}