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 NULL;
 125    _error->PushToStack();
 126    pkgCacheListParser * const Parser = new debTranslationsParser(&Pkg);
 127    bool const newError = _error->PendingError();
 128    _error->MergeWithStack();
 129    return newError ? NULL : Parser;
 130 }
 131                                                                         /*}}}*/
 132 // dpkg/status Index                                                    /*{{{*/
 133 debStatusIndex::debStatusIndex(std::string const &File) : pkgDebianIndexRealFile(File, true), d(NULL)
 134 {
 135 }
 136 std::string debStatusIndex::GetArchitecture() const
 137 {
 138    return std::string();
 139 }
 140 std::string debStatusIndex::GetComponent() const
 141 {
 142    return "now";
 143 }
 144 uint8_t debStatusIndex::GetIndexFlags() const
 145 {
 146    return pkgCache::Flag::NotSource;
 147 }
 148
 149 pkgCacheListParser * debStatusIndex::CreateListParser(FileFd &Pkg)
 150 {
 151    if (Pkg.IsOpen() == false)
 152       return NULL;
 153    _error->PushToStack();
 154    pkgCacheListParser * const Parser = new debStatusListParser(&Pkg);
 155    bool const newError = _error->PendingError();
 156    _error->MergeWithStack();
 157    return newError ? NULL : Parser;
 158 }
 159                                                                         /*}}}*/
 160 // DebPkgFile Index - a single .deb file as an index                    /*{{{*/
 161 debDebPkgFileIndex::debDebPkgFileIndex(std::string const &DebFile)
 162    : pkgDebianIndexRealFile(DebFile, true), d(NULL), DebFile(DebFile)
 163 {
 164 }
 165 bool debDebPkgFileIndex::GetContent(std::ostream &content, std::string const &debfile)
 166 {
 167    struct stat Buf;
 168    if (stat(debfile.c_str(), &Buf) != 0)
 169       return false;
 170
 171    // get the control data out of the deb file via dpkg-deb -I
 172    std::string dpkg = _config->Find("Dir::Bin::dpkg","dpkg-deb");
 173    std::vector<const char *> Args;
 174    Args.push_back(dpkg.c_str());
 175    Args.push_back("-I");
 176    Args.push_back(debfile.c_str());
 177    Args.push_back("control");
 178    Args.push_back(NULL);
 179    FileFd PipeFd;
 180    pid_t Child;
 181    if(Popen((const char**)&Args[0], PipeFd, Child, FileFd::ReadOnly) == false)
 182       return _error->Error("Popen failed");
 183
 184    content << "Filename: " << debfile << "\n";
 185    content << "Size: " << Buf.st_size << "\n";
 186    bool first_line_seen = false;
 187    char buffer[1024];
 188    do {
 189       unsigned long long actual = 0;
 190       if (PipeFd.Read(buffer, sizeof(buffer)-1, &actual) == false)
 191          return _error->Errno("read", "Failed to read dpkg pipe");
 192       if (actual == 0)
 193          break;
 194       buffer[actual] = '\0';
 195       char const * b = buffer;
 196       if (first_line_seen == false)
 197       {
 198          for (; *b != '\0' && (*b == '\n' || *b == '\r'); ++b)
 199             /* skip over leading newlines */;
 200          if (*b == '\0')
 201             continue;
 202          first_line_seen = true;
 203       }
 204       content << b;
 205    } while(true);
 206    ExecWait(Child, "Popen");
 207
 208    return true;
 209 }
 210 bool debDebPkgFileIndex::OpenListFile(FileFd &Pkg, std::string const &FileName)
 211 {
 212    // write the control data to a tempfile
 213    if (GetTempFile("deb-file-" + flNotDir(FileName), true, &Pkg) == NULL)
 214       return false;
 215    std::ostringstream content;
 216    if (GetContent(content, FileName) == false)
 217       return false;
 218    std::string const contentstr = content.str();
 219    if (contentstr.empty())
 220       return true;
 221    if (Pkg.Write(contentstr.c_str(), contentstr.length()) == false || Pkg.Seek(0) == false)
 222       return false;
 223    return true;
 224 }
 225 pkgCacheListParser * debDebPkgFileIndex::CreateListParser(FileFd &Pkg)
 226 {
 227    if (Pkg.IsOpen() == false)
 228       return NULL;
 229    _error->PushToStack();
 230    pkgCacheListParser * const Parser = new debDebFileParser(&Pkg, DebFile);
 231    bool const newError = _error->PendingError();
 232    _error->MergeWithStack();
 233    return newError ? NULL : Parser;
 234 }
 235 uint8_t debDebPkgFileIndex::GetIndexFlags() const
 236 {
 237    return pkgCache::Flag::LocalSource;
 238 }
 239 std::string debDebPkgFileIndex::GetArchitecture() const
 240 {
 241    return std::string();
 242 }
 243 std::string debDebPkgFileIndex::GetComponent() const
 244 {
 245    return "local-deb";
 246 }
 247 pkgCache::PkgFileIterator debDebPkgFileIndex::FindInCache(pkgCache &Cache) const
 248 {
 249    std::string const FileName = IndexFileName();
 250    pkgCache::PkgFileIterator File = Cache.FileBegin();
 251    for (; File.end() == false; ++File)
 252    {
 253        if (File.FileName() == NULL || FileName != File.FileName())
 254          continue;
 255       // we can't do size checks here as file size != content size
 256       return File;
 257    }
 258
 259    return File;
 260 }
 261 std::string debDebPkgFileIndex::ArchiveInfo_impl(pkgCache::VerIterator const &Ver) const
 262 {
 263    std::string Res = IndexFileName() + " ";
 264    Res.append(Ver.ParentPkg().Name()).append(" ");
 265    Res.append(Ver.Arch()).append(" ");
 266    Res.append(Ver.VerStr());
 267    return Res;
 268 }
 269                                                                         /*}}}*/
 270 // DscFile Index - a single .dsc file as an index                       /*{{{*/
 271 debDscFileIndex::debDscFileIndex(std::string const &DscFile)
 272    : pkgDebianIndexRealFile(DscFile, true), d(NULL)
 273 {
 274 }
 275 pkgSrcRecords::Parser *debDscFileIndex::CreateSrcParser() const
 276 {
 277    if (Exists() == false)
 278       return NULL;
 279    return new debDscRecordParser(File, this);
 280 }
 281                                                                         /*}}}*/
 282
 283 // Index File types for Debian                                          /*{{{*/
 284 class APT_HIDDEN debIFTypeSrc : public pkgIndexFile::Type
 285 {
 286    public:
 287    debIFTypeSrc() {Label = "Debian Source Index";};
 288 };
 289 class APT_HIDDEN debIFTypePkg : public pkgIndexFile::Type
 290 {
 291    public:
 292    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 293    {
 294       return new debRecordParser(File.FileName(),*File.Cache());
 295    };
 296    debIFTypePkg() {Label = "Debian Package Index";};
 297 };
 298 class APT_HIDDEN debIFTypeTrans : public debIFTypePkg
 299 {
 300    public:
 301    debIFTypeTrans() {Label = "Debian Translation Index";};
 302 };
 303 class APT_HIDDEN debIFTypeStatus : public pkgIndexFile::Type
 304 {
 305    public:
 306    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 307    {
 308       return new debRecordParser(File.FileName(),*File.Cache());
 309    };
 310    debIFTypeStatus() {Label = "Debian dpkg status file";};
 311 };
 312 class APT_HIDDEN debIFTypeDebPkgFile : public pkgIndexFile::Type
 313 {
 314    public:
 315    virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator const &File) const APT_OVERRIDE
 316    {
 317       return new debDebFileRecordParser(File.FileName());
 318    };
 319    debIFTypeDebPkgFile() {Label = "Debian deb file";};
 320 };
 321 class APT_HIDDEN debIFTypeDscFile : public pkgIndexFile::Type
 322 {
 323    public:
 324    virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string const &DscFile) const APT_OVERRIDE
 325    {
 326       return new debDscRecordParser(DscFile, NULL);
 327    };
 328    debIFTypeDscFile() {Label = "Debian dsc file";};
 329 };
 330 class APT_HIDDEN debIFTypeDebianSourceDir : public pkgIndexFile::Type
 331 {
 332    public:
 333    virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string const &SourceDir) const APT_OVERRIDE
 334    {
 335       return new debDscRecordParser(SourceDir + std::string("/debian/control"), NULL);
 336    };
 337    debIFTypeDebianSourceDir() {Label = "Debian control file";};
 338 };
 339
 340 APT_HIDDEN debIFTypeSrc _apt_Src;
 341 APT_HIDDEN debIFTypePkg _apt_Pkg;
 342 APT_HIDDEN debIFTypeTrans _apt_Trans;
 343 APT_HIDDEN debIFTypeStatus _apt_Status;
 344 APT_HIDDEN debIFTypeDebPkgFile _apt_DebPkgFile;
 345 // file based pseudo indexes
 346 APT_HIDDEN debIFTypeDscFile _apt_DscFile;
 347 APT_HIDDEN debIFTypeDebianSourceDir _apt_DebianSourceDir;
 348
 349 const pkgIndexFile::Type *debSourcesIndex::GetType() const
 350 {
 351    return &_apt_Src;
 352 }
 353 const pkgIndexFile::Type *debPackagesIndex::GetType() const
 354 {
 355    return &_apt_Pkg;
 356 }
 357 const pkgIndexFile::Type *debTranslationsIndex::GetType() const
 358 {
 359    return &_apt_Trans;
 360 }
 361 const pkgIndexFile::Type *debStatusIndex::GetType() const
 362 {
 363    return &_apt_Status;
 364 }
 365 const pkgIndexFile::Type *debDebPkgFileIndex::GetType() const
 366 {
 367    return &_apt_DebPkgFile;
 368 }
 369 const pkgIndexFile::Type *debDscFileIndex::GetType() const
 370 {
 371    return &_apt_DscFile;
 372 }
 373 const pkgIndexFile::Type *debDebianSourceDirIndex::GetType() const
 374 {
 375    return &_apt_DebianSourceDir;
 376 }
 377                                                                         /*}}}*/
 378
 379 debStatusIndex::~debStatusIndex() {}
 380 debPackagesIndex::~debPackagesIndex() {}
 381 debTranslationsIndex::~debTranslationsIndex() {}
 382 debSourcesIndex::~debSourcesIndex() {}
 383
 384 debDebPkgFileIndex::~debDebPkgFileIndex() {}
 385 debDscFileIndex::~debDscFileIndex() {}