apt-pkg/deb/debindexfile.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: debindexfile.cc,v 1.5.2.3 2004/01/04 19:11:00 mdz Exp $
   4 /* ######################################################################
   5
   6    Debian Specific sources.list types and the three sorts of Debian
   7    index files.
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Include Files                                                        /*{{{*/
  12 #include <config.h>
  13
  14 #include <apt-pkg/debindexfile.h>
  15 #include <apt-pkg/debsrcrecords.h>
  16 #include <apt-pkg/deblistparser.h>
  17 #include <apt-pkg/debrecords.h>
  18 #include <apt-pkg/configuration.h>
  19 #include <apt-pkg/error.h>
  20 #include <apt-pkg/fileutl.h>
  21 #include <apt-pkg/indexfile.h>
  22 #include <apt-pkg/pkgcache.h>
  23 #include <apt-pkg/cacheiterators.h>
  24 #include <apt-pkg/pkgrecords.h>
  25 #include <apt-pkg/srcrecords.h>
  26
  27 #include <stdio.h>
  28 #include <iostream>
  29 #include <string>
  30 #include <sstream>
  31
  32 #include <sys/stat.h>
  33                                                                         /*}}}*/
  34
  35 // Sources Index                                                        /*{{{*/
  36 debSourcesIndex::debSourcesIndex(IndexTarget const &Target,bool const Trusted) :
  37      pkgDebianIndexTargetFile(Target, Trusted), d(NULL)
  38 {
  39 }
  40 std::string debSourcesIndex::SourceInfo(pkgSrcRecords::Parser const &Record,
  41                                    pkgSrcRecords::File const &File) const
  42 {
  43    // The result looks like: http://foo/debian/ stable/main src 1.1.1 (dsc)
  44    std::string Res = Target.Description;
  45    Res.erase(Target.Description.rfind(' '));
  46
  47    Res += " ";
  48    Res += Record.Package();
  49    Res += " ";
  50    Res += Record.Version();
  51    if (File.Type.empty() == false)
  52       Res += " (" + File.Type + ")";
  53    return Res;
  54 }
  55 pkgSrcRecords::Parser *debSourcesIndex::CreateSrcParser() const
  56 {
  57    std::string const SourcesURI = IndexFileName();
  58    if (FileExists(SourcesURI))
  59       return new debSrcRecordParser(SourcesURI, this);
  60    return NULL;
  61 }
  62 bool debSourcesIndex::OpenListFile(FileFd &, std::string const &)
  63 {
  64    return true;
  65 }
  66 pkgCacheListParser * debSourcesIndex::CreateListParser(FileFd &)
  67 {
  68    return NULL;
  69 }
  70 uint8_t debSourcesIndex::GetIndexFlags() const
  71 {
  72    return 0;
  73 }
  74                                                                         /*}}}*/
  75 // Packages Index                                                       /*{{{*/
  76 debPackagesIndex::debPackagesIndex(IndexTarget const &Target, bool const Trusted) :
  77                   pkgDebianIndexTargetFile(Target, Trusted), d(NULL)
  78 {
  79 }
  80 std::string debPackagesIndex::ArchiveInfo(pkgCache::VerIterator const &Ver) const
  81 {
  82    std::string Res = Target.Description;
  83    Res.erase(Target.Description.rfind(' '));
  84
  85    Res += " ";
  86    Res += Ver.ParentPkg().Name();
  87    Res += " ";
  88    std::string const Dist = Target.Option(IndexTarget::RELEASE);
  89    if (Dist.empty() == false && Dist[Dist.size() - 1] != '/')
  90       Res.append(Ver.Arch()).append(" ");
  91    Res += Ver.VerStr();
  92    return Res;
  93 }
  94 uint8_t debPackagesIndex::GetIndexFlags() const
  95 {
  96    return 0;
  97 }
  98                                                                         /*}}}*/
  99 // Translation-* Index                                                  /*{{{*/
 100 debTranslationsIndex::debTranslationsIndex(IndexTarget const &Target) :
 101                         pkgDebianIndexTargetFile(Target, true), d(NULL)
 102 {}
 103 bool debTranslationsIndex::HasPackages() const
 104 {
 105    return Exists();
 106 }
 107 bool debTranslationsIndex::OpenListFile(FileFd &Pkg, std::string const &FileName)
 108 {
 109    if (FileExists(FileName))
 110       return pkgDebianIndexTargetFile::OpenListFile(Pkg, FileName);
 111    return true;
 112 }
 113 uint8_t debTranslationsIndex::GetIndexFlags() const
 114 {
 115    return pkgCache::Flag::NotSource | pkgCache::Flag::NoPackages;
 116 }
 117 std::string debTranslationsIndex::GetArchitecture() const
 118 {
 119    return std::string();
 120 }
 121 pkgCacheListParser * debTranslationsIndex::CreateListParser(FileFd &Pkg)
 122 {
 123    if (Pkg.IsOpen() == false)
 124       return nullptr;
 125    _error->PushToStack();
 126    pkgCacheListParser * const Parser = new debTranslationsParser(&Pkg);
 127    bool const newError = _error->PendingError();
 128    _error->MergeWithStack();
 129    if (newError)
 130    {
 131       delete Parser;
 132       return nullptr;
 133    }
 134    else
 135       return Parser;
 136 }
 137                                                                         /*}}}*/
 138 // dpkg/status Index                                                    /*{{{*/
 139 debStatusIndex::debStatusIndex(std::string const &File) : pkgDebianIndexRealFile(File, true), d(NULL)
 140 {
 141 }
 142 std::string debStatusIndex::GetArchitecture() const
 143 {
 144    return std::string();
 145 }
 146 std::string debStatusIndex::GetComponent() const
 147 {
 148    return "now";
 149 }
 150 uint8_t debStatusIndex::GetIndexFlags() const
 151 {
 152    return pkgCache::Flag::NotSource;
 153 }
 154
 155 pkgCacheListParser * debStatusIndex::CreateListParser(FileFd &Pkg)
 156 {
 157    if (Pkg.IsOpen() == false)
 158       return nullptr;
 159    _error->PushToStack();
 160    pkgCacheListParser * const Parser = new debStatusListParser(&Pkg);
 161    bool const newError = _error->PendingError();
 162    _error->MergeWithStack();
 163    if (newError)
 164    {
 165       delete Parser;
 166       return nullptr;
 167    }
 168    else
 169       return Parser;
 170 }
 171                                                                         /*}}}*/
 172 // DebPkgFile Index - a single .deb file as an index                    /*{{{*/
 173 debDebPkgFileIndex::debDebPkgFileIndex(std::string const &DebFile)
 174    : pkgDebianIndexRealFile(DebFile, true), d(NULL), DebFile(DebFile)
 175 {
 176 }
 177 bool debDebPkgFileIndex::GetContent(std::ostream &content, std::string const &debfile)
 178 {
 179    struct stat Buf;
 180    if (stat(debfile.c_str(), &Buf) != 0)
 181       return false;
 182
 183    // get the control data out of the deb file via dpkg-deb -I
 184    std::string dpkg = _config->Find("Dir::Bin::dpkg","dpkg-deb");
 185    std::vector<const char *> Args;
 186    Args.push_back(dpkg.c_str());
 187    Args.push_back("-I");
 188    Args.push_back(debfile.c_str());
 189    Args.push_back("control");
 190    Args.push_back(NULL);
 191    FileFd PipeFd;
 192    pid_t Child;
 193    if(Popen((const char**)&Args[0], PipeFd, Child, FileFd::ReadOnly) == false)
 194       return _error->Error("Popen failed");
 195
 196    content << "Filename: " << debfile << "\n";
 197    content << "Size: " << std::to_string(Buf.st_size) << "\n";
 198    bool first_line_seen = false;
 199    char buffer[1024];
 200    do {
 201       unsigned long long actual = 0;
 202       if (PipeFd.Read(buffer, sizeof(buffer)-1, &actual) == false)
 203          return _error->Errno("read", "Failed to read dpkg pipe");
 204       if (actual == 0)
 205          break;
 206       buffer[actual] = '\0';
 207       char const * b = buffer;
 208       if (first_line_seen == false)
 209       {
 210          for (; *b != '\0' && (*b == '\n' || *b == '\r'); ++b)
 211             /* skip over leading newlines */;
 212          if (*b == '\0')
 213             continue;
 214          first_line_seen = true;
 215       }
 216       content << b;
 217    } while(true);
 218    ExecWait(Child, "Popen");
 219
 220    return true;
 221 }
 222 bool debDebPkgFileIndex::OpenListFile(FileFd &Pkg, std::string const &FileName)
 223 {
 224    // write the control data to a tempfile
 225    if (GetTempFile("deb-file-" + flNotDir(FileName), true, &Pkg) == NULL)
 226       return false;
 227    std::ostringstream content;
 228    if (GetContent(content, FileName) == false)
 229       return false;
 230    std::string const contentstr = content.str();
 231    if (contentstr.empty())
 232       return true;
 233    if (Pkg.Write(contentstr.c_str(), contentstr.length()) == false || Pkg.Seek(0) == false)
 234       return false;
 235    return true;
 236 }
 237 pkgCacheListParser * debDebPkgFileIndex::CreateListParser(FileFd &Pkg)
 238 {
 239    if (Pkg.IsOpen() == false)
 240       return nullptr;
 241    _error->PushToStack();
 242    pkgCacheListParser * const Parser = new debDebFileParser(&Pkg, DebFile);
 243    bool const newError = _error->PendingError();
 244    _error->MergeWithStack();
 245    if (newError)
 246    {
 247       delete Parser;
 248       return nullptr;
 249    }
 250    else
 251       return Parser;
 252 }
 253 uint8_t debDebPkgFileIndex::GetIndexFlags() const
 254 {
 255    return pkgCache::Flag::LocalSource;
 256 }
 257 std::string debDebPkgFileIndex::GetArchitecture() const
 258 {
 259    return std::string();
 260 }
 261 std::string debDebPkgFileIndex::GetComponent() const
 262 {
 263    return "local-deb";
 264 }
 265 pkgCache::PkgFileIterator debDebPkgFileIndex::FindInCache(pkgCache &Cache) const
 266 {
 267    std::string const FileName = IndexFileName();
 268    pkgCache::PkgFileIterator File = Cache.FileBegin();
 269    for (; File.end() == false; ++File)
 270    {
 271        if (File.FileName() == NULL || FileName != File.FileName())
 272          continue;
 273       // we can't do size checks here as file size != content size
 274       return File;
 275    }
 276
 277    return File;
 278 }
 279 std::string debDebPkgFileIndex::ArchiveInfo_impl(pkgCache::VerIterator const &Ver) const
 280 {
 281    std::string Res = IndexFileName() + " ";
 282    Res.append(Ver.ParentPkg().Name()).append(" ");
 283    Res.append(Ver.Arch()).append(" ");
 284    Res.append(Ver.VerStr());
 285    return Res;
 286 }
 287                                                                         /*}}}*/
 288 // DscFile Index - a single .dsc file as an index                       /*{{{*/
 289 debDscFileIndex::debDscFileIndex(std::string const &DscFile)
 290    : pkgDebianIndexRealFile(DscFile, true), d(NULL)
 291 {
 292 }
 293 pkgSrcRecords::Parser *debDscFileIndex::CreateSrcParser() const
 294 {
 295    if (Exists() == false)
 296       return NULL;
 297    return new debDscRecordParser(File, this);
 298 }
 299 std::string debDscFileIndex::GetComponent() const
 300 {
 301    return "local-dsc";
 302 }
 303 std::string debDscFileIndex::GetArchitecture() const
 304 {
 305    return "source";
 306 }
 307 uint8_t debDscFileIndex::GetIndexFlags() const
 308 {
 309    return pkgCache::Flag::LocalSource;
 310 }
 311                                                                         /*}}}*/
 312 // ControlFile Index - a directory with a debian/control file           /*{{{*/
 313 std::string debDebianSourceDirIndex::GetComponent() const
 314 {
 315    return "local-control";
 316 }
 317                                                                         /*}}}*/
 318 // String Package Index - a string of Packages file content             /*{{{*/
 319 std::string debStringPackageIndex::GetArchitecture() const
 320 {
 321    return std::string();
 322 }
 323 std::string debStringPackageIndex::GetComponent() const
 324 {
 325    return "apt-tmp-index";
 326 }
 327 uint8_t debStringPackageIndex::GetIndexFlags() const
 328 {
 329    return pkgCache::Flag::NotSource;
 330 }
 331 const pkgIndexFile::Type *debStringPackageIndex::GetType() const
 332 {
 333    return pkgIndexFile::Type::GetType("Debian Package Index");
 334 }
 335 debStringPackageIndex::debStringPackageIndex(std::string const &content) :
 336    pkgDebianIndexRealFile("", false), d(NULL)
 337 {
 338    char fn[1024];
 339    std::string const tempdir = GetTempDir();
 340    snprintf(fn, sizeof(fn), "%s/%s.XXXXXX", tempdir.c_str(), "apt-tmp-index");
 341    int const fd = mkstemp(fn);
 342    File = fn;
 343    FileFd::Write(fd, content.data(), content.length());
 344    close(fd);
 345 }
 346 debStringPackageIndex::~debStringPackageIndex()
 347 {
 348    RemoveFile("~debStringPackageIndex", File);
 349 }
 350                                                                         /*}}}*/
 351
 352 // Index File types for Debian                                          /*{{{*/
 353 class APT_HIDDEN debIFTypeSrc : public pkgIndexFile::Type
 354 {
 355    public:
 356    debIFTypeSrc() {Label = "Debian Source Index";};
 357 };
 358 class APT_HIDDEN debIFTypePkg : public pkgIndexFile::Type
 359 {
 360    public:
 361    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 362    {
 363       return new debRecordParser(File.FileName(),*File.Cache());
 364    };
 365    debIFTypePkg() {Label = "Debian Package Index";};
 366 };
 367 class APT_HIDDEN debIFTypeTrans : public debIFTypePkg
 368 {
 369    public:
 370    debIFTypeTrans() {Label = "Debian Translation Index";};
 371 };
 372 class APT_HIDDEN debIFTypeStatus : public pkgIndexFile::Type
 373 {
 374    public:
 375    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 376    {
 377       return new debRecordParser(File.FileName(),*File.Cache());
 378    };
 379    debIFTypeStatus() {Label = "Debian dpkg status file";};
 380 };
 381 class APT_HIDDEN debIFTypeDebPkgFile : public pkgIndexFile::Type
 382 {
 383    public:
 384    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 385    {
 386       return new debDebFileRecordParser(File.FileName());
 387    };
 388    debIFTypeDebPkgFile() {Label = "Debian deb file";};
 389 };
 390 class APT_HIDDEN debIFTypeDscFile : public pkgIndexFile::Type
 391 {
 392    public:
 393    virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string const &DscFile) const APT_OVERRIDE
 394    {
 395       return new debDscRecordParser(DscFile, NULL);
 396    };
 397    debIFTypeDscFile() {Label = "Debian dsc file";};
 398 };
 399 class APT_HIDDEN debIFTypeDebianSourceDir : public pkgIndexFile::Type
 400 {
 401    public:
 402    virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string const &SourceDir) const APT_OVERRIDE
 403    {
 404       return new debDscRecordParser(SourceDir + std::string("/debian/control"), NULL);
 405    };
 406    debIFTypeDebianSourceDir() {Label = "Debian control file";};
 407 };
 408
 409 APT_HIDDEN debIFTypeSrc _apt_Src;
 410 APT_HIDDEN debIFTypePkg _apt_Pkg;
 411 APT_HIDDEN debIFTypeTrans _apt_Trans;
 412 APT_HIDDEN debIFTypeStatus _apt_Status;
 413 APT_HIDDEN debIFTypeDebPkgFile _apt_DebPkgFile;
 414 // file based pseudo indexes
 415 APT_HIDDEN debIFTypeDscFile _apt_DscFile;
 416 APT_HIDDEN debIFTypeDebianSourceDir _apt_DebianSourceDir;
 417
 418 const pkgIndexFile::Type *debSourcesIndex::GetType() const
 419 {
 420    return &_apt_Src;
 421 }
 422 const pkgIndexFile::Type *debPackagesIndex::GetType() const
 423 {
 424    return &_apt_Pkg;
 425 }
 426 const pkgIndexFile::Type *debTranslationsIndex::GetType() const
 427 {
 428    return &_apt_Trans;
 429 }
 430 const pkgIndexFile::Type *debStatusIndex::GetType() const
 431 {
 432    return &_apt_Status;
 433 }
 434 const pkgIndexFile::Type *debDebPkgFileIndex::GetType() const
 435 {
 436    return &_apt_DebPkgFile;
 437 }
 438 const pkgIndexFile::Type *debDscFileIndex::GetType() const
 439 {
 440    return &_apt_DscFile;
 441 }
 442 const pkgIndexFile::Type *debDebianSourceDirIndex::GetType() const
 443 {
 444    return &_apt_DebianSourceDir;
 445 }
 446                                                                         /*}}}*/
 447
 448 debStatusIndex::~debStatusIndex() {}
 449 debPackagesIndex::~debPackagesIndex() {}
 450 debTranslationsIndex::~debTranslationsIndex() {}
 451 debSourcesIndex::~debSourcesIndex() {}
 452
 453 debDebPkgFileIndex::~debDebPkgFileIndex() {}
 454 debDscFileIndex::~debDscFileIndex() {}