apt-pkg/deb/debmetaindex.cc

   1 #include <config.h>
   2
   3 #include <apt-pkg/error.h>
   4 #include <apt-pkg/debmetaindex.h>
   5 #include <apt-pkg/debindexfile.h>
   6 #include <apt-pkg/strutl.h>
   7 #include <apt-pkg/fileutl.h>
   8 #include <apt-pkg/acquire-item.h>
   9 #include <apt-pkg/configuration.h>
  10 #include <apt-pkg/aptconfiguration.h>
  11 #include <apt-pkg/sourcelist.h>
  12 #include <apt-pkg/hashes.h>
  13 #include <apt-pkg/metaindex.h>
  14 #include <apt-pkg/pkgcachegen.h>
  15 #include <apt-pkg/tagfile.h>
  16 #include <apt-pkg/gpgv.h>
  17 #include <apt-pkg/macros.h>
  18
  19 #include <map>
  20 #include <string>
  21 #include <utility>
  22 #include <vector>
  23 #include <set>
  24 #include <algorithm>
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30
  31 #include <apti18n.h>
  32
  33 class APT_HIDDEN debReleaseIndexPrivate                                 /*{{{*/
  34 {
  35    public:
  36    struct APT_HIDDEN debSectionEntry
  37    {
  38       std::string Name;
  39       std::vector<std::string> Targets;
  40       std::vector<std::string> Architectures;
  41       std::vector<std::string> Languages;
  42    };
  43
  44    std::vector<debSectionEntry> DebEntries;
  45    std::vector<debSectionEntry> DebSrcEntries;
  46
  47    metaIndex::TriState CheckValidUntil;
  48    time_t ValidUntilMin;
  49    time_t ValidUntilMax;
  50
  51    debReleaseIndexPrivate() : CheckValidUntil(metaIndex::TRI_UNSET), ValidUntilMin(0), ValidUntilMax(0) {}
  52 };
  53                                                                         /*}}}*/
  54 // ReleaseIndex::MetaIndex* - display helpers                           /*{{{*/
  55 std::string debReleaseIndex::MetaIndexInfo(const char *Type) const
  56 {
  57    std::string Info = ::URI::ArchiveOnly(URI) + ' ';
  58    if (Dist[Dist.size() - 1] == '/')
  59    {
  60       if (Dist != "/")
  61          Info += Dist;
  62    }
  63    else
  64       Info += Dist;
  65    Info += " ";
  66    Info += Type;
  67    return Info;
  68 }
  69 std::string debReleaseIndex::Describe() const
  70 {
  71    return MetaIndexInfo("Release");
  72 }
  73
  74 std::string debReleaseIndex::MetaIndexFile(const char *Type) const
  75 {
  76    return _config->FindDir("Dir::State::lists") +
  77       URItoFileName(MetaIndexURI(Type));
  78 }
  79
  80 std::string debReleaseIndex::MetaIndexURI(const char *Type) const
  81 {
  82    std::string Res;
  83
  84    if (Dist == "/")
  85       Res = URI;
  86    else if (Dist[Dist.size()-1] == '/')
  87       Res = URI + Dist;
  88    else
  89       Res = URI + "dists/" + Dist + "/";
  90
  91    Res += Type;
  92    return Res;
  93 }
  94                                                                         /*}}}*/
  95 // ReleaseIndex Con- and Destructors                                    /*{{{*/
  96 debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist) :
  97                                         metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate())
  98 {}
  99 debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist, bool const pTrusted) :
 100                                         metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate())
 101 {
 102    Trusted = pTrusted ? TRI_YES : TRI_NO;
 103 }
 104 debReleaseIndex::~debReleaseIndex() {
 105    if (d != NULL)
 106       delete d;
 107 }
 108                                                                         /*}}}*/
 109 // ReleaseIndex::GetIndexTargets                                        /*{{{*/
 110 static void GetIndexTargetsFor(char const * const Type, std::string const &URI, std::string const &Dist,
 111       std::vector<debReleaseIndexPrivate::debSectionEntry> const &entries,
 112       std::vector<IndexTarget> &IndexTargets)
 113 {
 114    bool const flatArchive = (Dist[Dist.length() - 1] == '/');
 115    std::string baseURI = URI;
 116    if (flatArchive)
 117    {
 118       if (Dist != "/")
 119          baseURI += Dist;
 120    }
 121    else
 122       baseURI += "dists/" + Dist + "/";
 123    std::string const Release = (Dist == "/") ? "" : Dist;
 124    std::string const Site = ::URI::ArchiveOnly(URI);
 125
 126    for (std::vector<debReleaseIndexPrivate::debSectionEntry>::const_iterator E = entries.begin(); E != entries.end(); ++E)
 127    {
 128       for (std::vector<std::string>::const_iterator T = E->Targets.begin(); T != E->Targets.end(); ++T)
 129       {
 130 #define APT_T_CONFIG(X) _config->Find(std::string("APT::Acquire::Targets::") + Type  + "::" + *T + "::" + (X))
 131          std::string const tplMetaKey = APT_T_CONFIG(flatArchive ? "flatMetaKey" : "MetaKey");
 132          std::string const tplShortDesc = APT_T_CONFIG("ShortDescription");
 133          std::string const tplLongDesc = APT_T_CONFIG(flatArchive ? "flatDescription" : "Description");
 134          bool const IsOptional = _config->FindB(std::string("APT::Acquire::Targets::deb-src::") + *T + "::Optional", true);
 135 #undef APT_T_CONFIG
 136          if (tplMetaKey.empty())
 137             continue;
 138
 139          for (std::vector<std::string>::const_iterator L = E->Languages.begin(); L != E->Languages.end(); ++L)
 140          {
 141             if (*L == "none" && tplMetaKey.find("$(LANGUAGE)") != std::string::npos)
 142                continue;
 143
 144             for (std::vector<std::string>::const_iterator A = E->Architectures.begin(); A != E->Architectures.end(); ++A)
 145             {
 146
 147                std::map<std::string, std::string> Options;
 148                Options.insert(std::make_pair("SITE", Site));
 149                Options.insert(std::make_pair("RELEASE", Release));
 150                if (tplMetaKey.find("$(COMPONENT)") != std::string::npos)
 151                   Options.insert(std::make_pair("COMPONENT", E->Name));
 152                if (tplMetaKey.find("$(LANGUAGE)") != std::string::npos)
 153                   Options.insert(std::make_pair("LANGUAGE", *L));
 154                if (tplMetaKey.find("$(ARCHITECTURE)") != std::string::npos)
 155                   Options.insert(std::make_pair("ARCHITECTURE", *A));
 156                Options.insert(std::make_pair("BASE_URI", baseURI));
 157                Options.insert(std::make_pair("REPO_URI", URI));
 158                Options.insert(std::make_pair("TARGET_OF", "deb-src"));
 159                Options.insert(std::make_pair("CREATED_BY", *T));
 160
 161                std::string MetaKey = tplMetaKey;
 162                std::string ShortDesc = tplShortDesc;
 163                std::string LongDesc = tplLongDesc;
 164                for (std::map<std::string, std::string>::const_iterator O = Options.begin(); O != Options.end(); ++O)
 165                {
 166                   MetaKey = SubstVar(MetaKey, std::string("$(") + O->first + ")", O->second);
 167                   ShortDesc = SubstVar(ShortDesc, std::string("$(") + O->first + ")", O->second);
 168                   LongDesc = SubstVar(LongDesc, std::string("$(") + O->first + ")", O->second);
 169                }
 170                IndexTarget Target(
 171                      MetaKey,
 172                      ShortDesc,
 173                      LongDesc,
 174                      Options.find("BASE_URI")->second + MetaKey,
 175                      IsOptional,
 176                      Options
 177                      );
 178                IndexTargets.push_back(Target);
 179
 180                if (tplMetaKey.find("$(ARCHITECTURE)") == std::string::npos)
 181                   break;
 182
 183             }
 184
 185             if (tplMetaKey.find("$(LANGUAGE)") == std::string::npos)
 186                break;
 187
 188          }
 189
 190       }
 191    }
 192 }
 193 std::vector<IndexTarget> debReleaseIndex::GetIndexTargets() const
 194 {
 195    std::vector<IndexTarget> IndexTargets;
 196    GetIndexTargetsFor("deb-src", URI, Dist, d->DebSrcEntries, IndexTargets);
 197    GetIndexTargetsFor("deb", URI, Dist, d->DebEntries, IndexTargets);
 198    return IndexTargets;
 199 }
 200                                                                         /*}}}*/
 201 void debReleaseIndex::AddComponent(bool const isSrc, std::string const &Name,/*{{{*/
 202          std::vector<std::string> const &Targets,
 203          std::vector<std::string> const &Architectures,
 204          std::vector<std::string> Languages)
 205 {
 206    if (Languages.empty() == true)
 207       Languages.push_back("none");
 208    debReleaseIndexPrivate::debSectionEntry const entry = {
 209       Name, Targets, Architectures, Languages
 210    };
 211    if (isSrc)
 212       d->DebSrcEntries.push_back(entry);
 213    else
 214       d->DebEntries.push_back(entry);
 215 }
 216                                                                         /*}}}*/
 217
 218 bool debReleaseIndex::Load(std::string const &Filename, std::string * const ErrorText)/*{{{*/
 219 {
 220    LoadedSuccessfully = TRI_NO;
 221    FileFd Fd;
 222    if (OpenMaybeClearSignedFile(Filename, Fd) == false)
 223       return false;
 224
 225    pkgTagFile TagFile(&Fd, Fd.Size());
 226    if (_error->PendingError() == true)
 227    {
 228       if (ErrorText != NULL)
 229          strprintf(*ErrorText, _("Unable to parse Release file %s"),Filename.c_str());
 230       return false;
 231    }
 232
 233    pkgTagSection Section;
 234    const char *Start, *End;
 235    if (TagFile.Step(Section) == false)
 236    {
 237       if (ErrorText != NULL)
 238          strprintf(*ErrorText, _("No sections in Release file %s"), Filename.c_str());
 239       return false;
 240    }
 241    // FIXME: find better tag name
 242    SupportsAcquireByHash = Section.FindB("Acquire-By-Hash", false);
 243
 244    Suite = Section.FindS("Suite");
 245    Codename = Section.FindS("Codename");
 246
 247    bool FoundHashSum = false;
 248    for (int i=0;HashString::SupportedHashes()[i] != NULL; i++)
 249    {
 250       if (!Section.Find(HashString::SupportedHashes()[i], Start, End))
 251          continue;
 252
 253       std::string Name;
 254       std::string Hash;
 255       unsigned long long Size;
 256       while (Start < End)
 257       {
 258          if (!parseSumData(Start, End, Name, Hash, Size))
 259             return false;
 260
 261          if (Entries.find(Name) == Entries.end())
 262          {
 263             metaIndex::checkSum *Sum = new metaIndex::checkSum;
 264             Sum->MetaKeyFilename = Name;
 265             Sum->Size = Size;
 266             Sum->Hashes.FileSize(Size);
 267             APT_IGNORE_DEPRECATED(Sum->Hash = HashString(HashString::SupportedHashes()[i],Hash);)
 268             Entries[Name] = Sum;
 269          }
 270          Entries[Name]->Hashes.push_back(HashString(HashString::SupportedHashes()[i],Hash));
 271          FoundHashSum = true;
 272       }
 273    }
 274
 275    if(FoundHashSum == false)
 276    {
 277       if (ErrorText != NULL)
 278          strprintf(*ErrorText, _("No Hash entry in Release file %s"), Filename.c_str());
 279       return false;
 280    }
 281
 282    std::string const StrDate = Section.FindS("Date");
 283    if (RFC1123StrToTime(StrDate.c_str(), Date) == false)
 284    {
 285       if (ErrorText != NULL)
 286          strprintf(*ErrorText, _("Invalid 'Date' entry in Release file %s"), Filename.c_str());
 287       return false;
 288    }
 289
 290    bool CheckValidUntil = _config->FindB("Acquire::Check-Valid-Until", true);
 291    if (d->CheckValidUntil == metaIndex::TRI_NO)
 292       CheckValidUntil = false;
 293    else if (d->CheckValidUntil == metaIndex::TRI_YES)
 294       CheckValidUntil = true;
 295
 296    if (CheckValidUntil == true)
 297    {
 298       std::string const Label = Section.FindS("Label");
 299       std::string const StrValidUntil = Section.FindS("Valid-Until");
 300
 301       // if we have a Valid-Until header in the Release file, use it as default
 302       if (StrValidUntil.empty() == false)
 303       {
 304          if(RFC1123StrToTime(StrValidUntil.c_str(), ValidUntil) == false)
 305          {
 306             if (ErrorText != NULL)
 307                strprintf(*ErrorText, _("Invalid 'Valid-Until' entry in Release file %s"), Filename.c_str());
 308             return false;
 309          }
 310       }
 311       // get the user settings for this archive and use what expires earlier
 312       time_t MaxAge = d->ValidUntilMax;
 313       if (MaxAge == 0)
 314       {
 315          MaxAge = _config->FindI("Acquire::Max-ValidTime", 0);
 316          if (Label.empty() == false)
 317             MaxAge = _config->FindI(("Acquire::Max-ValidTime::" + Label).c_str(), MaxAge);
 318       }
 319       time_t MinAge = d->ValidUntilMin;
 320       if (MinAge == 0)
 321       {
 322          MinAge = _config->FindI("Acquire::Min-ValidTime", 0);
 323          if (Label.empty() == false)
 324             MinAge = _config->FindI(("Acquire::Min-ValidTime::" + Label).c_str(), MinAge);
 325       }
 326
 327       if (MinAge != 0 && ValidUntil != 0) {
 328          time_t const min_date = Date + MinAge;
 329          if (ValidUntil < min_date)
 330             ValidUntil = min_date;
 331       }
 332       if (MaxAge != 0) {
 333          time_t const max_date = Date + MaxAge;
 334          if (ValidUntil == 0 || ValidUntil > max_date)
 335             ValidUntil = max_date;
 336       }
 337    }
 338
 339    LoadedSuccessfully = TRI_YES;
 340    return true;
 341 }
 342                                                                         /*}}}*/
 343 metaIndex * debReleaseIndex::UnloadedClone() const                      /*{{{*/
 344 {
 345    if (Trusted == TRI_NO)
 346       return new debReleaseIndex(URI, Dist, false);
 347    else if (Trusted == TRI_YES)
 348       return new debReleaseIndex(URI, Dist, true);
 349    else
 350       return new debReleaseIndex(URI, Dist);
 351 }
 352                                                                         /*}}}*/
 353 bool debReleaseIndex::parseSumData(const char *&Start, const char *End, /*{{{*/
 354                                    std::string &Name, std::string &Hash, unsigned long long &Size)
 355 {
 356    Name = "";
 357    Hash = "";
 358    Size = 0;
 359    /* Skip over the first blank */
 360    while ((*Start == '\t' || *Start == ' ' || *Start == '\n' || *Start == '\r')
 361           && Start < End)
 362       Start++;
 363    if (Start >= End)
 364       return false;
 365
 366    /* Move EntryEnd to the end of the first entry (the hash) */
 367    const char *EntryEnd = Start;
 368    while ((*EntryEnd != '\t' && *EntryEnd != ' ')
 369           && EntryEnd < End)
 370       EntryEnd++;
 371    if (EntryEnd == End)
 372       return false;
 373
 374    Hash.append(Start, EntryEnd-Start);
 375
 376    /* Skip over intermediate blanks */
 377    Start = EntryEnd;
 378    while (*Start == '\t' || *Start == ' ')
 379       Start++;
 380    if (Start >= End)
 381       return false;
 382
 383    EntryEnd = Start;
 384    /* Find the end of the second entry (the size) */
 385    while ((*EntryEnd != '\t' && *EntryEnd != ' ' )
 386           && EntryEnd < End)
 387       EntryEnd++;
 388    if (EntryEnd == End)
 389       return false;
 390
 391    Size = strtoull (Start, NULL, 10);
 392
 393    /* Skip over intermediate blanks */
 394    Start = EntryEnd;
 395    while (*Start == '\t' || *Start == ' ')
 396       Start++;
 397    if (Start >= End)
 398       return false;
 399
 400    EntryEnd = Start;
 401    /* Find the end of the third entry (the filename) */
 402    while ((*EntryEnd != '\t' && *EntryEnd != ' ' &&
 403            *EntryEnd != '\n' && *EntryEnd != '\r')
 404           && EntryEnd < End)
 405       EntryEnd++;
 406
 407    Name.append(Start, EntryEnd-Start);
 408    Start = EntryEnd; //prepare for the next round
 409    return true;
 410 }
 411                                                                         /*}}}*/
 412
 413 bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll)/*{{{*/
 414 {
 415    std::vector<IndexTarget> const targets = GetIndexTargets();
 416 #define APT_TARGET(X) IndexTarget("", X, MetaIndexInfo(X), MetaIndexURI(X), false, std::map<std::string,std::string>())
 417    pkgAcqMetaClearSig * const TransactionManager = new pkgAcqMetaClearSig(Owner,
 418          APT_TARGET("InRelease"), APT_TARGET("Release"), APT_TARGET("Release.gpg"),
 419          targets, this);
 420 #undef APT_TARGET
 421    // special case for --print-uris
 422    if (GetAll)
 423    {
 424       for (std::vector<IndexTarget>::const_iterator Target = targets.begin(); Target != targets.end(); ++Target)
 425          new pkgAcqIndex(Owner, TransactionManager, *Target);
 426    }
 427
 428    return true;
 429 }
 430                                                                         /*}}}*/
 431 // ReleaseIndex::Set* TriState options                                  /*{{{*/
 432 bool debReleaseIndex::SetTrusted(TriState const pTrusted)
 433 {
 434    if (Trusted == TRI_UNSET)
 435       Trusted = pTrusted;
 436    else if (Trusted != pTrusted)
 437       // TRANSLATOR: The first is an option name from sources.list manpage, the other two URI and Suite
 438       return _error->Error(_("Conflicting values set for option %s concerning source %s %s"), "Trusted", URI.c_str(), Dist.c_str());
 439    return true;
 440 }
 441 bool debReleaseIndex::SetCheckValidUntil(TriState const pCheckValidUntil)
 442 {
 443    if (d->CheckValidUntil == TRI_UNSET)
 444       d->CheckValidUntil = pCheckValidUntil;
 445    else if (d->CheckValidUntil != pCheckValidUntil)
 446       return _error->Error(_("Conflicting values set for option %s concerning source %s %s"), "Check-Valid-Until", URI.c_str(), Dist.c_str());
 447    return true;
 448 }
 449 bool debReleaseIndex::SetValidUntilMin(time_t const Valid)
 450 {
 451    if (d->ValidUntilMin == 0)
 452       d->ValidUntilMin = Valid;
 453    else if (d->ValidUntilMin != Valid)
 454       return _error->Error(_("Conflicting values set for option %s concerning source %s %s"), "Min-ValidTime", URI.c_str(), Dist.c_str());
 455    return true;
 456 }
 457 bool debReleaseIndex::SetValidUntilMax(time_t const Valid)
 458 {
 459    if (d->ValidUntilMax == 0)
 460       d->ValidUntilMax = Valid;
 461    else if (d->ValidUntilMax != Valid)
 462       return _error->Error(_("Conflicting values set for option %s concerning source %s %s"), "Max-ValidTime", URI.c_str(), Dist.c_str());
 463    return true;
 464 }
 465                                                                         /*}}}*/
 466 // ReleaseIndex::IsTrusted                                              /*{{{*/
 467 bool debReleaseIndex::IsTrusted() const
 468 {
 469    if (Trusted == TRI_YES)
 470       return true;
 471    else if (Trusted == TRI_NO)
 472       return false;
 473
 474
 475    if(_config->FindB("APT::Authentication::TrustCDROM", false))
 476       if(URI.substr(0,strlen("cdrom:")) == "cdrom:")
 477          return true;
 478
 479    if (FileExists(MetaIndexFile("Release.gpg")))
 480       return true;
 481
 482    return FileExists(MetaIndexFile("InRelease"));
 483 }
 484                                                                         /*}}}*/
 485 std::vector <pkgIndexFile *> *debReleaseIndex::GetIndexFiles()          /*{{{*/
 486 {
 487    if (Indexes != NULL)
 488       return Indexes;
 489
 490    Indexes = new std::vector<pkgIndexFile*>();
 491    std::vector<IndexTarget> const Targets = GetIndexTargets();
 492    bool const istrusted = IsTrusted();
 493    for (std::vector<IndexTarget>::const_iterator T = Targets.begin(); T != Targets.end(); ++T)
 494    {
 495       std::string const TargetName = T->Option(IndexTarget::CREATED_BY);
 496       if (TargetName == "Packages")
 497          Indexes->push_back(new debPackagesIndex(*T, istrusted));
 498       else if (TargetName == "Sources")
 499          Indexes->push_back(new debSourcesIndex(*T, istrusted));
 500       else if (TargetName == "Translations")
 501          Indexes->push_back(new debTranslationsIndex(*T));
 502    }
 503    return Indexes;
 504 }
 505                                                                         /*}}}*/
 506
 507 static bool ReleaseFileName(debReleaseIndex const * const That, std::string &ReleaseFile)/*{{{*/
 508 {
 509    ReleaseFile = That->MetaIndexFile("InRelease");
 510    bool releaseExists = false;
 511    if (FileExists(ReleaseFile) == true)
 512       releaseExists = true;
 513    else
 514    {
 515       ReleaseFile = That->MetaIndexFile("Release");
 516       if (FileExists(ReleaseFile))
 517          releaseExists = true;
 518    }
 519    return releaseExists;
 520 }
 521                                                                         /*}}}*/
 522 bool debReleaseIndex::Merge(pkgCacheGenerator &Gen,OpProgress * /*Prog*/) const/*{{{*/
 523 {
 524    std::string ReleaseFile;
 525    bool const releaseExists = ReleaseFileName(this, ReleaseFile);
 526
 527    ::URI Tmp(URI);
 528    if (Gen.SelectReleaseFile(ReleaseFile, Tmp.Host) == false)
 529       return _error->Error("Problem with SelectReleaseFile %s", ReleaseFile.c_str());
 530
 531    if (releaseExists == false)
 532       return true;
 533
 534    FileFd Rel;
 535    // Beware: The 'Release' file might be clearsigned in case the
 536    // signature for an 'InRelease' file couldn't be checked
 537    if (OpenMaybeClearSignedFile(ReleaseFile, Rel) == false)
 538       return false;
 539    if (_error->PendingError() == true)
 540       return false;
 541
 542    // Store the IMS information
 543    pkgCache::RlsFileIterator File = Gen.GetCurRlsFile();
 544    pkgCacheGenerator::Dynamic<pkgCache::RlsFileIterator> DynFile(File);
 545    // Rel can't be used as this is potentially a temporary file
 546    struct stat Buf;
 547    if (stat(ReleaseFile.c_str(), &Buf) != 0)
 548       return _error->Errno("fstat", "Unable to stat file %s", ReleaseFile.c_str());
 549    File->Size = Buf.st_size;
 550    File->mtime = Buf.st_mtime;
 551
 552    pkgTagFile TagFile(&Rel, Rel.Size());
 553    pkgTagSection Section;
 554    if (_error->PendingError() == true || TagFile.Step(Section) == false)
 555       return false;
 556
 557    std::string data;
 558    #define APT_INRELEASE(TYPE, TAG, STORE) \
 559    data = Section.FindS(TAG); \
 560    if (data.empty() == false) \
 561    { \
 562       map_stringitem_t const storage = Gen.StoreString(pkgCacheGenerator::TYPE, data); \
 563       STORE = storage; \
 564    }
 565    APT_INRELEASE(MIXED, "Suite", File->Archive)
 566    APT_INRELEASE(VERSIONNUMBER, "Version", File->Version)
 567    APT_INRELEASE(MIXED, "Origin", File->Origin)
 568    APT_INRELEASE(MIXED, "Codename", File->Codename)
 569    APT_INRELEASE(MIXED, "Label", File->Label)
 570    #undef APT_INRELEASE
 571    Section.FindFlag("NotAutomatic", File->Flags, pkgCache::Flag::NotAutomatic);
 572    Section.FindFlag("ButAutomaticUpgrades", File->Flags, pkgCache::Flag::ButAutomaticUpgrades);
 573
 574    return !_error->PendingError();
 575 }
 576                                                                         /*}}}*/
 577 // ReleaseIndex::FindInCache - Find this index                          /*{{{*/
 578 pkgCache::RlsFileIterator debReleaseIndex::FindInCache(pkgCache &Cache, bool const ModifyCheck) const
 579 {
 580    std::string ReleaseFile;
 581    bool const releaseExists = ReleaseFileName(this, ReleaseFile);
 582
 583    pkgCache::RlsFileIterator File = Cache.RlsFileBegin();
 584    for (; File.end() == false; ++File)
 585    {
 586        if (File->FileName == 0 || ReleaseFile != File.FileName())
 587          continue;
 588
 589        // empty means the file does not exist by "design"
 590        if (ModifyCheck == false || (releaseExists == false && File->Size == 0))
 591           return File;
 592
 593       struct stat St;
 594       if (stat(File.FileName(),&St) != 0)
 595       {
 596          if (_config->FindB("Debug::pkgCacheGen", false))
 597             std::clog << "ReleaseIndex::FindInCache - stat failed on " << File.FileName() << std::endl;
 598          return pkgCache::RlsFileIterator(Cache);
 599       }
 600       if ((unsigned)St.st_size != File->Size || St.st_mtime != File->mtime)
 601       {
 602          if (_config->FindB("Debug::pkgCacheGen", false))
 603             std::clog << "ReleaseIndex::FindInCache - size (" << St.st_size << " <> " << File->Size
 604                         << ") or mtime (" << St.st_mtime << " <> " << File->mtime
 605                         << ") doesn't match for " << File.FileName() << std::endl;
 606          return pkgCache::RlsFileIterator(Cache);
 607       }
 608       return File;
 609    }
 610
 611    return File;
 612 }
 613                                                                         /*}}}*/
 614
 615 static std::vector<std::string> parsePlusMinusOptions(std::string const &Name, /*{{{*/
 616       std::map<std::string, std::string> const &Options, std::vector<std::string> const &defaultValues)
 617 {
 618    std::map<std::string, std::string>::const_iterator val = Options.find(Name);
 619    std::vector<std::string> Values;
 620    if (val != Options.end())
 621       Values = VectorizeString(val->second, ',');
 622    else
 623       Values = defaultValues;
 624
 625    if ((val = Options.find(Name + "+")) != Options.end())
 626    {
 627       std::vector<std::string> const plusArch = VectorizeString(val->second, ',');
 628       for (std::vector<std::string>::const_iterator plus = plusArch.begin(); plus != plusArch.end(); ++plus)
 629          if (std::find(Values.begin(), Values.end(), *plus) == Values.end())
 630             Values.push_back(*plus);
 631    }
 632    if ((val = Options.find(Name + "-")) != Options.end())
 633    {
 634       std::vector<std::string> const minusArch = VectorizeString(val->second, ',');
 635       for (std::vector<std::string>::const_iterator minus = minusArch.begin(); minus != minusArch.end(); ++minus)
 636       {
 637          std::vector<std::string>::iterator kill = std::find(Values.begin(), Values.end(), *minus);
 638          if (kill != Values.end())
 639             Values.erase(kill);
 640       }
 641    }
 642    return Values;
 643 }
 644                                                                         /*}}}*/
 645 class APT_HIDDEN debSLTypeDebian : public pkgSourceList::Type           /*{{{*/
 646 {
 647    metaIndex::TriState GetTriStateOption(std::map<std::string, std::string>const &Options, char const * const name) const
 648    {
 649       std::map<std::string, std::string>::const_iterator const opt = Options.find(name);
 650       if (opt != Options.end())
 651          return StringToBool(opt->second, false) ? metaIndex::TRI_YES : metaIndex::TRI_NO;
 652       return metaIndex::TRI_DONTCARE;
 653    }
 654
 655    time_t GetTimeOption(std::map<std::string, std::string>const &Options, char const * const name) const
 656    {
 657       std::map<std::string, std::string>::const_iterator const opt = Options.find(name);
 658       if (opt == Options.end())
 659          return 0;
 660       return strtoull(opt->second.c_str(), NULL, 10);
 661    }
 662
 663    protected:
 664
 665    bool CreateItemInternal(std::vector<metaIndex *> &List, std::string const &URI,
 666                            std::string const &Dist, std::string const &Section,
 667                            bool const &IsSrc, std::map<std::string, std::string> const &Options) const
 668    {
 669       debReleaseIndex *Deb = NULL;
 670       for (std::vector<metaIndex *>::const_iterator I = List.begin();
 671            I != List.end(); ++I)
 672       {
 673          // We only worry about debian entries here
 674          if (strcmp((*I)->GetType(), "deb") != 0)
 675             continue;
 676
 677          /* This check insures that there will be only one Release file
 678             queued for all the Packages files and Sources files it
 679             corresponds to. */
 680          if ((*I)->GetURI() == URI && (*I)->GetDist() == Dist)
 681          {
 682             Deb = dynamic_cast<debReleaseIndex*>(*I);
 683             if (Deb != NULL)
 684                break;
 685          }
 686       }
 687
 688       // No currently created Release file indexes this entry, so we create a new one.
 689       if (Deb == NULL)
 690       {
 691          Deb = new debReleaseIndex(URI, Dist);
 692          List.push_back(Deb);
 693       }
 694
 695       Deb->AddComponent(
 696             IsSrc,
 697             Section,
 698             parsePlusMinusOptions("target", Options, _config->FindVector(std::string("APT::Acquire::Targets::") + Name, "", true)),
 699             parsePlusMinusOptions("arch", Options, APT::Configuration::getArchitectures()),
 700             parsePlusMinusOptions("lang", Options, APT::Configuration::getLanguages(true))
 701             );
 702
 703       if (Deb->SetTrusted(GetTriStateOption(Options, "trusted")) == false ||
 704          Deb->SetCheckValidUntil(GetTriStateOption(Options, "check-valid-until")) == false ||
 705          Deb->SetValidUntilMax(GetTimeOption(Options, "valid-until-max")) == false ||
 706          Deb->SetValidUntilMin(GetTimeOption(Options, "valid-until-min")) == false)
 707          return false;
 708
 709       return true;
 710    }
 711
 712    debSLTypeDebian(char const * const Name, char const * const Label) : Type(Name, Label)
 713    {
 714    }
 715 };
 716                                                                         /*}}}*/
 717 class APT_HIDDEN debSLTypeDeb : public debSLTypeDebian                  /*{{{*/
 718 {
 719    public:
 720
 721    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 722                    std::string const &Dist, std::string const &Section,
 723                    std::map<std::string, std::string> const &Options) const
 724    {
 725       return CreateItemInternal(List, URI, Dist, Section, false, Options);
 726    }
 727
 728    debSLTypeDeb() : debSLTypeDebian("deb", "Debian binary tree")
 729    {
 730    }
 731 };
 732                                                                         /*}}}*/
 733 class APT_HIDDEN debSLTypeDebSrc : public debSLTypeDebian               /*{{{*/
 734 {
 735    public:
 736
 737    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 738                    std::string const &Dist, std::string const &Section,
 739                    std::map<std::string, std::string> const &Options) const
 740    {
 741       return CreateItemInternal(List, URI, Dist, Section, true, Options);
 742    }
 743
 744    debSLTypeDebSrc() : debSLTypeDebian("deb-src", "Debian source tree")
 745    {
 746    }
 747 };
 748                                                                         /*}}}*/
 749
 750 debDebFileMetaIndex::debDebFileMetaIndex(std::string const &DebFile)    /*{{{*/
 751    : metaIndex(DebFile, "local-uri", "deb-dist"), d(NULL), DebFile(DebFile)
 752 {
 753    DebIndex = new debDebPkgFileIndex(DebFile);
 754    Indexes = new std::vector<pkgIndexFile *>();
 755    Indexes->push_back(DebIndex);
 756 }
 757 debDebFileMetaIndex::~debDebFileMetaIndex() {}
 758                                                                         /*}}}*/
 759 class APT_HIDDEN debSLTypeDebFile : public pkgSourceList::Type          /*{{{*/
 760 {
 761    public:
 762
 763    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 764                    std::string const &/*Dist*/, std::string const &/*Section*/,
 765                    std::map<std::string, std::string> const &/*Options*/) const
 766    {
 767       metaIndex *mi = new debDebFileMetaIndex(URI);
 768       List.push_back(mi);
 769       return true;
 770    }
 771
 772    debSLTypeDebFile() : Type("deb-file", "Debian local deb file")
 773    {
 774    }
 775 };
 776                                                                         /*}}}*/
 777
 778 APT_HIDDEN debSLTypeDeb _apt_DebType;
 779 APT_HIDDEN debSLTypeDebSrc _apt_DebSrcType;
 780 APT_HIDDEN debSLTypeDebFile _apt_DebFileType;