// Include Files /*{{{*/ #include <config.h> #include <apt-pkg/acquire.h> #include <apt-pkg/acquire-item.h> #include <apt-pkg/cacheset.h> #include <apt-pkg/cmndline.h> #include <apt-pkg/clean.h> #include <apt-pkg/configuration.h> #include <apt-pkg/error.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/strutl.h> #include <apt-private/private-cachefile.h> #include <apt-private/private-download.h> #include <apt-private/private-output.h> #include <apt-private/private-utils.h> #include <apt-private/acqprogress.h> #include <fstream> #include <string> #include <vector> #include <unistd.h> #include <sys/types.h> #include <pwd.h> #include <fcntl.h> #include <sys/vfs.h> #include <sys/statvfs.h> #include <sys/stat.h> #include <errno.h> #include <apti18n.h> /*}}}*/ // CheckAuth - check if each download comes form a trusted source /*{{{*/ bool CheckAuth(pkgAcquire& Fetcher, bool const PromptUser) { std::vector<std::string> UntrustedList; for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd(); ++I) if (!(*I)->IsTrusted()) UntrustedList.push_back((*I)->ShortDesc()); if (UntrustedList.empty()) return true; return AuthPrompt(UntrustedList, PromptUser); } /*}}}*/ bool AuthPrompt(std::vector<std::string> const &UntrustedList, bool const PromptUser)/*{{{*/ { ShowList(c2out,_("WARNING: The following packages cannot be authenticated!"), UntrustedList, [](std::string const&) { return true; }, [](std::string const&str) { return str; }, [](std::string const&) { return ""; }); if (_config->FindB("APT::Get::AllowUnauthenticated",false) == true) { c2out << _("Authentication warning overridden.\n"); return true; } if (PromptUser == false) return _error->Error(_("Some packages could not be authenticated")); if (_config->FindI("quiet",0) < 2 && _config->FindB("APT::Get::Assume-Yes",false) == false) { c2out << _("Install these packages without verification?") << std::flush; if (!YnPrompt(false)) return _error->Error(_("Some packages could not be authenticated")); return true; } else if (_config->FindB("APT::Get::Force-Yes",false) == true) { _error->Warning(_("--force-yes is deprecated, use one of the options starting with --allow instead.")); return true; } return _error->Error(_("There were unauthenticated packages and -y was used without --allow-unauthenticated")); } /*}}}*/ bool AcquireRun(pkgAcquire &Fetcher, int const PulseInterval, bool * const Failure, bool * const TransientNetworkFailure)/*{{{*/ { pkgAcquire::RunResult res; if(PulseInterval > 0) res = Fetcher.Run(PulseInterval); else res = Fetcher.Run(); if (res == pkgAcquire::Failed) return false; for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I) { if ((*I)->Status == pkgAcquire::Item::StatDone && (*I)->Complete == true) continue; if (TransientNetworkFailure != NULL && (*I)->Status == pkgAcquire::Item::StatIdle) { *TransientNetworkFailure = true; continue; } ::URI uri((*I)->DescURI()); uri.User.clear(); uri.Password.clear(); std::string descUri = std::string(uri); _error->Error(_("Failed to fetch %s %s\n"), descUri.c_str(), (*I)->ErrorText.c_str()); if (Failure != NULL) *Failure = true; } return true; } /*}}}*/ bool CheckFreeSpaceBeforeDownload(std::string const &Dir, unsigned long long FetchBytes)/*{{{*/ { uint32_t const RAMFS_MAGIC = 0x858458f6; /* Check for enough free space, but only if we are actually going to download */ if (_config->FindB("APT::Get::Print-URIs", false) == true || _config->FindB("APT::Get::Download", true) == false) return true; struct statvfs Buf; if (statvfs(Dir.c_str(),&Buf) != 0) { if (errno == EOVERFLOW) return _error->WarningE("statvfs",_("Couldn't determine free space in %s"), Dir.c_str()); else return _error->Errno("statvfs",_("Couldn't determine free space in %s"), Dir.c_str()); } else { unsigned long long const FreeBlocks = _config->Find("APT::Sandbox::User").empty() ? Buf.f_bfree : Buf.f_bavail; if (FreeBlocks < (FetchBytes / Buf.f_bsize)) { struct statfs Stat; if (statfs(Dir.c_str(),&Stat) != 0 #if HAVE_STRUCT_STATFS_F_TYPE || Stat.f_type != RAMFS_MAGIC #endif ) return _error->Error(_("You don't have enough free space in %s."), Dir.c_str()); } } return true; } /*}}}*/ aptAcquireWithTextStatus::aptAcquireWithTextStatus() : pkgAcquire::pkgAcquire(), Stat(std::cout, ScreenWidth, _config->FindI("quiet",0)) { SetLog(&Stat); } // DoDownload - download a binary /*{{{*/ bool DoDownload(CommandLine &CmdL) { CacheFile Cache; if (Cache.ReadOnlyOpen() == false) return false; APT::CacheSetHelper helper; APT::VersionSet verset = APT::VersionSet::FromCommandLine(Cache, CmdL.FileList + 1, APT::CacheSetHelper::CANDIDATE, helper); if (verset.empty() == true) return false; pkgRecords Recs(Cache); pkgSourceList *SrcList = Cache.GetSourceList(); // reuse the usual acquire methods for deb files, but don't drop them into // the usual directories - keep everything in the current directory aptAcquireWithTextStatus Fetcher; std::vector<std::string> storefile(verset.size()); std::string const cwd = SafeGetCWD(); _config->Set("Dir::Cache::Archives", cwd); int i = 0; for (APT::VersionSet::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver, ++i) { pkgAcquire::Item *I = new pkgAcqArchive(&Fetcher, SrcList, &Recs, *Ver, storefile[i]); if (storefile[i].empty()) continue; std::string const filename = cwd + flNotDir(storefile[i]); storefile[i].assign(filename); I->DestFile.assign(filename); } // Just print out the uris and exit if the --print-uris flag was used if (_config->FindB("APT::Get::Print-URIs") == true) { pkgAcquire::UriIterator I = Fetcher.UriBegin(); for (; I != Fetcher.UriEnd(); ++I) std::cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << I->Owner->FileSize << ' ' << I->Owner->HashSum() << std::endl; return true; } if (_error->PendingError() == true || CheckAuth(Fetcher, false) == false) return false; bool Failed = false; if (AcquireRun(Fetcher, 0, &Failed, NULL) == false) return false; // copy files in local sources to the current directory for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I) { std::string const filename = cwd + flNotDir((*I)->DestFile); if ((*I)->Local == true && filename != (*I)->DestFile && (*I)->Status == pkgAcquire::Item::StatDone) { std::ifstream src((*I)->DestFile.c_str(), std::ios::binary); std::ofstream dst(filename.c_str(), std::ios::binary); dst << src.rdbuf(); chmod(filename.c_str(), 0644); } } return Failed == false; } /*}}}*/ // DoChangelog - Get changelog from the command line /*{{{*/ bool DoChangelog(CommandLine &CmdL) { CacheFile Cache; if (Cache.ReadOnlyOpen() == false) return false; APT::CacheSetHelper helper; APT::VersionList verset = APT::VersionList::FromCommandLine(Cache, CmdL.FileList + 1, APT::CacheSetHelper::CANDIDATE, helper); if (verset.empty() == true) return false; bool const downOnly = _config->FindB("APT::Get::Download-Only", false); bool const printOnly = _config->FindB("APT::Get::Print-URIs", false); if (printOnly) _config->CndSet("Acquire::Changelogs::AlwaysOnline", true); aptAcquireWithTextStatus Fetcher; for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver) { if (printOnly) new pkgAcqChangelog(&Fetcher, Ver, "/dev/null"); else if (downOnly) new pkgAcqChangelog(&Fetcher, Ver, "."); else new pkgAcqChangelog(&Fetcher, Ver); } if (printOnly == false) { bool Failed = false; if (AcquireRun(Fetcher, 0, &Failed, NULL) == false || Failed == true) return false; } if (downOnly == false || printOnly == true) { bool Failed = false; for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I) { if (printOnly) { if ((*I)->ErrorText.empty() == false) { Failed = true; _error->Error("%s", (*I)->ErrorText.c_str()); } else std::cout << '\'' << (*I)->DescURI() << "' " << flNotDir((*I)->DestFile) << std::endl; } else DisplayFileInPager((*I)->DestFile); } return Failed == false; } return true; } /*}}}*/ // DoClean - Remove download archives /*{{{*/ bool DoClean(CommandLine &) { std::string const archivedir = _config->FindDir("Dir::Cache::archives"); std::string const listsdir = _config->FindDir("Dir::state::lists"); if (_config->FindB("APT::Get::Simulate") == true) { std::string const pkgcache = _config->FindFile("Dir::cache::pkgcache"); std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache"); std::cout << "Del " << archivedir << "* " << archivedir << "partial/*"<< std::endl << "Del " << listsdir << "partial/*" << std::endl << "Del " << pkgcache << " " << srcpkgcache << std::endl; return true; } pkgAcquire Fetcher; if (archivedir.empty() == false && FileExists(archivedir) == true && Fetcher.GetLock(archivedir) == true) { Fetcher.Clean(archivedir); Fetcher.Clean(archivedir + "partial/"); } if (listsdir.empty() == false && FileExists(listsdir) == true && Fetcher.GetLock(listsdir) == true) { Fetcher.Clean(listsdir + "partial/"); } pkgCacheFile::RemoveCaches(); return true; } /*}}}*/ // DoAutoClean - Smartly remove downloaded archives /*{{{*/ // --------------------------------------------------------------------- /* This is similar to clean but it only purges things that cannot be downloaded, that is old versions of cached packages. */ class LogCleaner : public pkgArchiveCleaner { protected: virtual void Erase(const char *File, std::string Pkg, std::string Ver,struct stat &St) APT_OVERRIDE { c1out << "Del " << Pkg << " " << Ver << " [" << SizeToStr(St.st_size) << "B]" << std::endl; if (_config->FindB("APT::Get::Simulate") == false) RemoveFile("Cleaner::Erase", File); }; }; bool DoAutoClean(CommandLine &) { std::string const archivedir = _config->FindDir("Dir::Cache::Archives"); if (FileExists(archivedir) == false) return true; // Lock the archive directory FileFd Lock; if (_config->FindB("Debug::NoLocking",false) == false) { int lock_fd = GetLock(flCombine(archivedir, "lock")); if (lock_fd < 0) return _error->Error(_("Unable to lock the download directory")); Lock.Fd(lock_fd); } CacheFile Cache; if (Cache.Open(false) == false) return false; LogCleaner Cleaner; return Cleaner.Go(archivedir, *Cache) && Cleaner.Go(flCombine(archivedir, "partial/"), *Cache); } /*}}}*/