// -*- 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/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 <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() : Name(NULL), Label(NULL) { ItmList[GlobalListLen] = this; GlobalListLen++; } /*}}}*/ // 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,"$(ARCH)",_config->Find("APT::Architecture")); // Make sure that the URI is / postfixed if (URI[URI.size() - 1] != '/') URI += '/'; return true; } /*}}}*/ bool pkgSourceList::Type::ParseStanza(vector<metaIndex *> &List, pkgTagSection &Tags, int i, FileFd &Fd) { map<string, string> Options; string Enabled = Tags.FindS("Enabled"); if (Enabled.size() > 0 && StringToBool(Enabled) == false) return true; // Define external/internal options const char* option_deb822[] = { "Architectures", "Architectures-Add", "Architectures-Remove", "Trusted", }; const char* option_internal[] = { "arch", "arch+", "arch-", "trusted", }; for (unsigned int j=0; j < sizeof(option_deb822)/sizeof(char*); j++) if (Tags.Exists(option_deb822[j])) { // for deb822 the " " is the delimiter, but the backend expects "," std::string option = Tags.FindS(option_deb822[j]); std::replace(option.begin(), option.end(), ' ', ','); Options[option_internal[j]] = option; } // now create one item per suite/section string Suite = Tags.FindS("Suites"); Suite = SubstVar(Suite,"$(ARCH)",_config->Find("APT::Architecture")); string const Section = Tags.FindS("Sections"); string URIS = Tags.FindS("URIs"); std::vector<std::string> list_uris = StringSplit(URIS, " "); std::vector<std::string> list_dist = StringSplit(Suite, " "); std::vector<std::string> list_section = StringSplit(Section, " "); for (std::vector<std::string>::const_iterator U = list_uris.begin(); U != list_uris.end(); ++U) { std::string URI = (*U); if (!FixupURI(URI)) { _error->Error(_("Malformed stanza %u in source list %s (URI parse)"),i,Fd.Name().c_str()); return false; } for (std::vector<std::string>::const_iterator I = list_dist.begin(); I != list_dist.end(); ++I) { for (std::vector<std::string>::const_iterator J = list_section.begin(); J != list_section.end(); ++J) { if (CreateItem(List, URI, (*I), (*J), 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 long 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; 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 line %lu in source list %s ([option] unparseable)"),CurLine,File.c_str()); if (option.length() < 3) return _error->Error(_("Malformed line %lu in source list %s ([option] too short)"),CurLine,File.c_str()); // 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 line %lu in source list %s ([%s] is not an assignment)"),CurLine,File.c_str(), option.c_str()); string const key = string(option, 0, needle); string const value = string(option, needle + 1, option.length()); if (key.empty() == true) return _error->Error(_("Malformed line %lu in source list %s ([%s] has no key)"),CurLine,File.c_str(), option.c_str()); if (value.empty() == true) return _error->Error(_("Malformed line %lu in source list %s ([%s] key %s has no value)"),CurLine,File.c_str(),option.c_str(),key.c_str()); 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 line %lu in source list %s (URI)"),CurLine,File.c_str()); if (ParseQuoteWord(Buffer,Dist) == false) return _error->Error(_("Malformed line %lu in source list %s (dist)"),CurLine,File.c_str()); if (FixupURI(URI) == false) return _error->Error(_("Malformed line %lu in source list %s (URI parse)"),CurLine,File.c_str()); // Check for an absolute dists specification. if (Dist.empty() == false && Dist[Dist.size() - 1] == '/') { if (ParseQuoteWord(Buffer,Section) == true) return _error->Error(_("Malformed line %lu in source list %s (absolute dist)"),CurLine,File.c_str()); 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 line %lu in source list %s (dist parse)"),CurLine,File.c_str()); do { if (CreateItem(List, URI, Dist, Section, Options) == false) return false; } while (ParseQuoteWord(Buffer,Section) == true); return true; } /*}}}*/ // SourceList::pkgSourceList - Constructors /*{{{*/ // --------------------------------------------------------------------- /* */ pkgSourceList::pkgSourceList() { } pkgSourceList::pkgSourceList(string File) { Read(File); } /*}}}*/ // SourceList::~pkgSourceList - Destructor /*{{{*/ // --------------------------------------------------------------------- /* */ pkgSourceList::~pkgSourceList() { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) delete *I; } /*}}}*/ // 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.erase(SrcList.begin(),SrcList.end()); } /*}}}*/ // SourceList::Read - Parse the sourcelist file /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::Read(string File) { Reset(); return ReadAppend(File); } /*}}}*/ // SourceList::ReadAppend - Parse a sourcelist file /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ReadAppend(string File) { if (_config->FindB("APT::Sources::Use-Deb822", false) == true) { int lines_parsed =ParseFileDeb822(File); if (lines_parsed < 0) return false; else if (lines_parsed > 0) return true; // no lines parsed ... fall through and use old style parser } return ParseFileOldStyle(File); } // SourceList::ReadFileOldStyle - Read Traditional style sources.list /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::ParseFileOldStyle(string 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()); // CNC:2003-12-10 - 300 is too short. char Buffer[1024]; int CurLine = 0; while (F.eof() == false) { F.getline(Buffer,sizeof(Buffer)); CurLine++; _strtabexpand(Buffer,sizeof(Buffer)); if (F.fail() && !F.eof()) return _error->Error(_("Line %u too long in source list %s."), CurLine,File.c_str()); char *I; // CNC:2003-02-20 - Do not break if '#' is inside []. for (I = Buffer; *I != 0 && *I != '#'; I++) if (*I == '[') { char *b_end = strchr(I + 1, ']'); if (b_end != NULL) I = b_end; } *I = 0; const char *C = _strstrip(Buffer); // Comment or blank if (C[0] == '#' || C[0] == 0) continue; // Grok it string LineType; if (ParseQuoteWord(C,LineType) == false) 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, C, CurLine, File) == false) return false; } return true; } /*}}}*/ // SourceList::ParseFileDeb822 - Parse deb822 style sources.list /*{{{*/ // --------------------------------------------------------------------- /* Returns: the number of stanzas parsed*/ int pkgSourceList::ParseFileDeb822(string File) { pkgTagSection Tags; unsigned int i=0; // see if we can read the file _error->PushToStack(); FileFd Fd(File, FileFd::ReadOnly); pkgTagFile Sources(&Fd); if (_error->PendingError() == true) { _error->RevertToStack(); return 0; } _error->MergeWithStack(); // read step by step while (Sources.Step(Tags) == true) { if(!Tags.Exists("Types")) continue; string const types = Tags.FindS("Types"); std::vector<std::string> list_types = StringSplit(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 -1; } if (!Parse->ParseStanza(SrcList, Tags, i, Fd)) return -1; i++; } } // we are done, return the number of stanzas read return i; } /*}}}*/ // SourceList::FindIndex - Get the index associated with a file /*{{{*/ // --------------------------------------------------------------------- /* */ bool pkgSourceList::FindIndex(pkgCache::PkgFileIterator File, pkgIndexFile *&Found) const { for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I) { vector<pkgIndexFile *> *Indexes = (*I)->GetIndexFiles(); for (vector<pkgIndexFile *>::const_iterator J = Indexes->begin(); J != Indexes->end(); ++J) { if ((*J)->FindInCache(*File.Cache()) == File) { Found = (*J); return true; } } } return false; } /*}}}*/ // 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 Dir) { vector<string> const List = GetListOfFilesInDir(Dir, "list", 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 time_t mtime_sources = GetModificationTime(Main); for (vector<string>::const_iterator I = List.begin(); I != List.end(); ++I) mtime_sources = std::max(mtime_sources, GetModificationTime(*I)); return mtime_sources; } /*}}}*/