diff options
Diffstat (limited to 'apt-pkg/indexfile.cc')
| -rw-r--r-- | apt-pkg/indexfile.cc | 387 |
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() {} |