// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ // $Id: sourcelist.cc,v 1.3 2002/08/15 20:51:37 niemeyer Exp $ /* ###################################################################### List of Sources ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include<config.h> #include <apt-pkg/sourcelist.h> #include <apt-pkg/cmndline.h> #include <apt-pkg/error.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/strutl.h> #include <apt-pkg/configuration.h> #include <apt-pkg/metaindex.h> #include <apt-pkg/indexfile.h> #include <apt-pkg/tagfile.h> #include <apt-pkg/pkgcache.h> #include <apt-pkg/cacheiterators.h> #include <apt-pkg/debindexfile.h> #include <ctype.h> #include <stddef.h> #include <time.h> #include <cstring> #include <map> #include <string> #include <vector> #include <fstream> #include <algorithm> #include <apti18n.h> /*}}}*/ using namespace std; // Global list of Items supported static pkgSourceList::Type *ItmList[10]; pkgSourceList::Type **pkgSourceList::Type::GlobalList = ItmList; unsigned long pkgSourceList::Type::GlobalListLen = 0; // Type::Type - Constructor /*{{{*/ // --------------------------------------------------------------------- /* Link this to the global list of items*/ pkgSourceList::Type::Type(char const * const pName, char const * const pLabel) : Name(pName), Label(pLabel) { ItmList[GlobalListLen] = this; ++GlobalListLen; } pkgSourceList::Type::~Type() {} /*}}}*/ // Type::GetType - Get a specific meta for a given type /*{{{*/ // --------------------------------------------------------------------- /* */ pkgSourceList::Type *pkgSourceList::Type::GetType(const char *Type) { for (unsigned I = 0; I != GlobalListLen; ++I) if (strcmp(GlobalList[I]->Name,Type) == 0) return GlobalList[I]; return 0; } /*}}}*/ // Type::FixupURI - Normalize the URI and check it.. /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::Type::FixupURI(string &URI) const { if (URI.empty() == true) return false; if (URI.find(':') == string::npos) return false; URI = SubstVar(URI,"$(ARCH)",_config->Find("APT::Architecture")); // Make sure that the URI is / postfixed if (URI[URI.size() - 1] != '/') URI += '/'; return true; } /*}}}*/ bool pkgSourceList::Type::ParseStanza(vector<metaIndex *> &List, /*{{{*/ pkgTagSection &Tags, unsigned int const i, FileFd &Fd) { map<string, string> Options; string Enabled = Tags.FindS("Enabled"); if (Enabled.empty() == false && StringToBool(Enabled) == false) return true; std::map<char const * const, std::pair<char const * const, bool> > mapping; #define APT_PLUSMINUS(X, Y) \ mapping.insert(std::make_pair(X, std::make_pair(Y, true))); \ mapping.insert(std::make_pair(X "Add", std::make_pair(Y "+", true))); \ mapping.insert(std::make_pair(X "Remove", std::make_pair(Y "-", true))) APT_PLUSMINUS("Architectures", "arch"); APT_PLUSMINUS("Languages", "lang"); APT_PLUSMINUS("Targets", "target"); #undef APT_PLUSMINUS mapping.insert(std::make_pair("Trusted", std::make_pair("trusted", false))); mapping.insert(std::make_pair("Check-Valid-Until", std::make_pair("check-valid-until", false))); mapping.insert(std::make_pair("Valid-Until-Min", std::make_pair("valid-until-min", false))); mapping.insert(std::make_pair("Valid-Until-Max", std::make_pair("valid-until-max", false))); mapping.insert(std::make_pair("Signed-By", std::make_pair("signed-by", false))); mapping.insert(std::make_pair("PDiffs", std::make_pair("pdiffs", false))); mapping.insert(std::make_pair("By-Hash", std::make_pair("by-hash", false))); for (std::map<char const * const, std::pair<char const * const, bool> >::const_iterator m = mapping.begin(); m != mapping.end(); ++m) if (Tags.Exists(m->first)) { std::string option = Tags.FindS(m->first); // for deb822 the " " is the delimiter, but the backend expects "," if (m->second.second == true) std::replace(option.begin(), option.end(), ' ', ','); Options[m->second.first] = option; } { std::string entry; strprintf(entry, "%s:%i", Fd.Name().c_str(), i); Options["sourceslist-entry"] = entry; } // now create one item per suite/section string Suite = Tags.FindS("Suites"); Suite = SubstVar(Suite,"$(ARCH)",_config->Find("APT::Architecture")); string const Component = Tags.FindS("Components"); string const URIS = Tags.FindS("URIs"); std::vector<std::string> const list_uris = VectorizeString(URIS, ' '); std::vector<std::string> const list_suite = VectorizeString(Suite, ' '); std::vector<std::string> const list_comp = VectorizeString(Component, ' '); if (list_uris.empty()) // TRANSLATOR: %u is a line number, the first %s is a filename of a file with the extension "second %s" and the third %s is a unique identifier for bugreports return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "URI"); for (std::vector<std::string>::const_iterator U = list_uris.begin(); U != list_uris.end(); ++U) { std::string URI = *U; if (U->empty() || FixupURI(URI) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "URI parse"); if (list_suite.empty()) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "Suite"); for (std::vector<std::string>::const_iterator S = list_suite.begin(); S != list_suite.end(); ++S) { if (S->empty() == false && (*S)[S->size() - 1] == '/') { if (list_comp.empty() == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "absolute Suite Component"); if (CreateItem(List, URI, *S, "", Options) == false) return false; } else { if (list_comp.empty()) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "Component"); for (std::vector<std::string>::const_iterator C = list_comp.begin(); C != list_comp.end(); ++C) { if (CreateItem(List, URI, *S, *C, Options) == false) { return false; } } } } } return true; } /*}}}*/ // Type::ParseLine - Parse a single line /*{{{*/ // --------------------------------------------------------------------- /* This is a generic one that is the 'usual' format for sources.list Weird types may override this. */ bool pkgSourceList::Type::ParseLine(vector<metaIndex *> &List, const char *Buffer, unsigned int const CurLine, string const &File) const { for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces // Parse option field if it exists // e.g.: [ option1=value1 option2=value2 ] map<string, string> Options; { std::string entry; strprintf(entry, "%s:%i", File.c_str(), CurLine); Options["sourceslist-entry"] = entry; } if (Buffer != 0 && Buffer[0] == '[') { ++Buffer; // ignore the [ for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces while (*Buffer != ']') { // get one option, e.g. option1=value1 string option; if (ParseQuoteWord(Buffer,option) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] unparseable"); if (option.length() < 3) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] too short"); // accept options even if the last has no space before the ]-end marker if (option.at(option.length()-1) == ']') { for (; *Buffer != ']'; --Buffer); option.resize(option.length()-1); } size_t const needle = option.find('='); if (needle == string::npos) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] not assignment"); string const key = string(option, 0, needle); string const value = string(option, needle + 1, option.length()); if (key.empty() == true) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] no key"); if (value.empty() == true) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] no value"); Options[key] = value; } ++Buffer; // ignore the ] for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces } string URI; string Dist; string Section; if (ParseQuoteWord(Buffer,URI) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "URI"); if (ParseQuoteWord(Buffer,Dist) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "Suite"); if (FixupURI(URI) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "URI parse"); // Check for an absolute dists specification. if (Dist.empty() == false && Dist[Dist.size() - 1] == '/') { if (ParseQuoteWord(Buffer,Section) == true) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "absolute Suite Component"); Dist = SubstVar(Dist,"$(ARCH)",_config->Find("APT::Architecture")); return CreateItem(List, URI, Dist, Section, Options); } // Grab the rest of the dists if (ParseQuoteWord(Buffer,Section) == false) return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "Component"); do { if (CreateItem(List, URI, Dist, Section, Options) == false) return false; } while (ParseQuoteWord(Buffer,Section) == true); return true; } /*}}}*/ // SourceList::pkgSourceList - Constructors /*{{{*/ // --------------------------------------------------------------------- /* */ pkgSourceList::pkgSourceList() : d(NULL) { } /*}}}*/ // SourceList::~pkgSourceList - Destructor /*{{{*/ // --------------------------------------------------------------------- /* */ pkgSourceList::~pkgSourceList() { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) delete *I; SrcList.clear(); for (auto F = VolatileFiles.begin(); F != VolatileFiles.end(); ++F) delete (*F); VolatileFiles.clear(); } /*}}}*/ // SourceList::ReadMainList - Read the main source list from etc /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ReadMainList() { // CNC:2003-03-03 - Multiple sources list support. bool Res = true; #if 0 Res = ReadVendors(); if (Res == false) return false; #endif Reset(); // CNC:2003-11-28 - Entries in sources.list have priority over // entries in sources.list.d. string Main = _config->FindFile("Dir::Etc::sourcelist"); string Parts = _config->FindDir("Dir::Etc::sourceparts"); if (RealFileExists(Main) == true) Res &= ReadAppend(Main); else if (DirectoryExists(Parts) == false) // Only warn if there are no sources.list.d. _error->WarningE("DirectoryExists", _("Unable to read %s"), Parts.c_str()); if (DirectoryExists(Parts) == true) Res &= ReadSourceDir(Parts); else if (RealFileExists(Main) == false) // Only warn if there is no sources.list file. _error->WarningE("RealFileExists", _("Unable to read %s"), Main.c_str()); return Res; } /*}}}*/ // SourceList::Reset - Clear the sourcelist contents /*{{{*/ // --------------------------------------------------------------------- /* */ void pkgSourceList::Reset() { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) delete *I; SrcList.clear(); } /*}}}*/ // SourceList::Read - Parse the sourcelist file /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::Read(string const &File) { Reset(); return ReadAppend(File); } /*}}}*/ // SourceList::ReadAppend - Parse a sourcelist file /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ReadAppend(string const &File) { if (flExtension(File) == "sources") return ParseFileDeb822(File); else return ParseFileOldStyle(File); } /*}}}*/ // SourceList::ReadFileOldStyle - Read Traditional style sources.list /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ParseFileOldStyle(std::string const &File) { // Open the stream for reading ifstream F(File.c_str(),ios::in /*| ios::nocreate*/); if (F.fail() == true) return _error->Errno("ifstream::ifstream",_("Opening %s"),File.c_str()); std::string Buffer; for (unsigned int CurLine = 1; std::getline(F, Buffer); ++CurLine) { // remove comments size_t curpos = 0; while ((curpos = Buffer.find('#', curpos)) != std::string::npos) { size_t const openbrackets = std::count(Buffer.begin(), Buffer.begin() + curpos, '['); size_t const closedbrackets = std::count(Buffer.begin(), Buffer.begin() + curpos, ']'); if (openbrackets > closedbrackets) { // a # in an option, unlikely, but oh well, it was supported so stick to it ++curpos; continue; } Buffer.erase(curpos); break; } // remove spaces before/after curpos = Buffer.find_first_not_of(" \t\r"); if (curpos != 0) Buffer.erase(0, curpos); curpos = Buffer.find_last_not_of(" \t\r"); if (curpos != std::string::npos) Buffer.erase(curpos + 1); if (Buffer.empty()) continue; // Grok it std::string const LineType = Buffer.substr(0, Buffer.find_first_of(" \t\v")); if (LineType.empty() || LineType == Buffer) return _error->Error(_("Malformed line %u in source list %s (type)"),CurLine,File.c_str()); Type *Parse = Type::GetType(LineType.c_str()); if (Parse == 0) return _error->Error(_("Type '%s' is not known on line %u in source list %s"),LineType.c_str(),CurLine,File.c_str()); if (Parse->ParseLine(SrcList, Buffer.c_str() + LineType.length(), CurLine, File) == false) return false; } return true; } /*}}}*/ // SourceList::ParseFileDeb822 - Parse deb822 style sources.list /*{{{*/ // --------------------------------------------------------------------- /* Returns: the number of stanzas parsed*/ bool pkgSourceList::ParseFileDeb822(string const &File) { unsigned int i = 1; // see if we can read the file FileFd Fd(File, FileFd::ReadOnly); pkgTagFile Sources(&Fd, pkgTagFile::SUPPORT_COMMENTS); if (Fd.IsOpen() == false || Fd.Failed()) return _error->Error(_("Malformed stanza %u in source list %s (type)"),i,File.c_str()); // read step by step pkgTagSection Tags; while (Sources.Step(Tags) == true) { if(Tags.Exists("Types") == false) return _error->Error(_("Malformed stanza %u in source list %s (type)"),i,File.c_str()); string const types = Tags.FindS("Types"); std::vector<std::string> const list_types = VectorizeString(types, ' '); for (std::vector<std::string>::const_iterator I = list_types.begin(); I != list_types.end(); ++I) { Type *Parse = Type::GetType((*I).c_str()); if (Parse == 0) { _error->Error(_("Type '%s' is not known on stanza %u in source list %s"), (*I).c_str(),i,Fd.Name().c_str()); return false; } if (!Parse->ParseStanza(SrcList, Tags, i, Fd)) return false; ++i; } } return true; } /*}}}*/ // SourceList::FindIndex - Get the index associated with a file /*{{{*/ static bool FindInIndexFileContainer(std::vector<pkgIndexFile *> const &Cont, pkgCache::PkgFileIterator const &File, pkgIndexFile *&Found) { auto const J = std::find_if(Cont.begin(), Cont.end(), [&File](pkgIndexFile const * const J) { return J->FindInCache(*File.Cache()) == File; }); if (J != Cont.end()) { Found = (*J); return true; } return false; } bool pkgSourceList::FindIndex(pkgCache::PkgFileIterator File, pkgIndexFile *&Found) const { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) if (FindInIndexFileContainer(*(*I)->GetIndexFiles(), File, Found)) return true; return FindInIndexFileContainer(VolatileFiles, File, Found); } /*}}}*/ // SourceList::GetIndexes - Load the index files into the downloader /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::GetIndexes(pkgAcquire *Owner, bool GetAll) const { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) if ((*I)->GetIndexes(Owner,GetAll) == false) return false; return true; } /*}}}*/ // CNC:2003-03-03 - By Anton V. Denisov <avd@altlinux.org>. // SourceList::ReadSourceDir - Read a directory with sources files // Based on ReadConfigDir() /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ReadSourceDir(string const &Dir) { std::vector<std::string> ext; ext.push_back("list"); ext.push_back("sources"); std::vector<std::string> const List = GetListOfFilesInDir(Dir, ext, true); // Read the files for (vector<string>::const_iterator I = List.begin(); I != List.end(); ++I) if (ReadAppend(*I) == false) return false; return true; } /*}}}*/ // GetLastModified() /*{{{*/ // --------------------------------------------------------------------- /* */ time_t pkgSourceList::GetLastModifiedTime() { vector<string> List; string Main = _config->FindFile("Dir::Etc::sourcelist"); string Parts = _config->FindDir("Dir::Etc::sourceparts"); // go over the parts if (DirectoryExists(Parts) == true) List = GetListOfFilesInDir(Parts, "list", true); // calculate the time std::vector<time_t> modtimes; modtimes.reserve(1 + List.size()); modtimes.push_back(GetModificationTime(Main)); std::transform(List.begin(), List.end(), std::back_inserter(modtimes), GetModificationTime); auto const maxmtime = std::max_element(modtimes.begin(), modtimes.end()); return *maxmtime; } /*}}}*/ std::vector<pkgIndexFile*> pkgSourceList::GetVolatileFiles() const /*{{{*/ { return VolatileFiles; } /*}}}*/ void pkgSourceList::AddVolatileFile(pkgIndexFile * const File) /*{{{*/ { if (File != nullptr) VolatileFiles.push_back(File); } /*}}}*/ bool pkgSourceList::AddVolatileFile(std::string const &File) /*{{{*/ { // Note: FileExists matches directories and links, too! if (File.empty() || FileExists(File) == false) return false; std::string const ext = flExtension(File); if (ext == "deb") AddVolatileFile(new debDebPkgFileIndex(File)); else if (ext == "dsc") AddVolatileFile(new debDscFileIndex(File)); else if (FileExists(flCombine(File, "debian/control"))) AddVolatileFile(new debDscFileIndex(flCombine(File, "debian/control"))); else return false; return true; } /*}}}*/ void pkgSourceList::AddVolatileFiles(CommandLine &CmdL, std::vector<const char*> * const VolatileCmdL)/*{{{*/ { std::remove_if(CmdL.FileList + 1, CmdL.FileList + 1 + CmdL.FileSize(), [&](char const * const I) { if (I != nullptr && (I[0] == '/' || (I[0] == '.' && ((I[1] == '.' && I[2] == '/') || I[1] == '/')))) { if (AddVolatileFile(I)) { if (VolatileCmdL != nullptr) VolatileCmdL->push_back(I); } else _error->Error(_("Unsupported file %s given on commandline"), I); return true; } return false; }); } /*}}}*/