apt-pkg/metaindex.h

   1 #ifndef PKGLIB_METAINDEX_H
   2 #define PKGLIB_METAINDEX_H
   3
   4 #include <apt-pkg/indexfile.h>
   5 #include <apt-pkg/init.h>
   6
   7 #include <stddef.h>
   8
   9 #include <string>
  10 #include <vector>
  11
  12 #ifndef APT_10_CLEANER_HEADERS
  13 #include <apt-pkg/pkgcache.h>
  14 class pkgCacheGenerator;
  15 class OpProgress;
  16 #endif
  17 #ifndef APT_8_CLEANER_HEADERS
  18 #include <apt-pkg/srcrecords.h>
  19 #include <apt-pkg/pkgrecords.h>
  20 using std::string;
  21 #endif
  22
  23 class pkgAcquire;
  24 class IndexTarget;
  25 class pkgCacheGenerator;
  26 class OpProgress;
  27
  28 class metaIndex
  29 {
  30 public:
  31    APT_IGNORE_DEPRECATED_PUSH
  32    struct checkSum
  33    {
  34       std::string MetaKeyFilename;
  35       HashStringList Hashes;
  36       unsigned long long Size;
  37
  38       APT_DEPRECATED HashString Hash;
  39    };
  40    APT_IGNORE_DEPRECATED_POP
  41
  42    enum APT_HIDDEN TriState {
  43       TRI_YES, TRI_DONTCARE, TRI_NO, TRI_UNSET
  44    };
  45 private:
  46    void * const d;
  47 protected:
  48    std::vector <pkgIndexFile *> *Indexes;
  49    // parsed from the sources.list
  50    const char *Type;
  51    std::string URI;
  52    std::string Dist;
  53    TriState Trusted;
  54    std::string SignedBy;
  55
  56    // parsed from a file
  57    std::string Suite;
  58    std::string Codename;
  59    time_t Date;
  60    time_t ValidUntil;
  61    bool SupportsAcquireByHash;
  62    std::map<std::string, checkSum *> Entries;
  63    TriState LoadedSuccessfully;
  64
  65 public:
  66    // Various accessors
  67    std::string GetURI() const;
  68    std::string GetDist() const;
  69    const char* GetType() const;
  70    TriState GetTrusted() const;
  71    std::string GetSignedBy() const;
  72
  73    std::string GetCodename() const;
  74    std::string GetSuite() const;
  75    bool GetSupportsAcquireByHash() const;
  76    time_t GetValidUntil() const;
  77    time_t GetDate() const;
  78
  79    std::string GetExpectedDist() const;
  80    bool CheckDist(std::string const &MaybeDist) const;
  81
  82    // Interface for acquire
  83    virtual std::string Describe() const;
  84    virtual std::string ArchiveURI(std::string const& File) const = 0;
  85    virtual bool GetIndexes(pkgAcquire *Owner, bool const &GetAll=false) = 0;
  86    virtual std::vector<IndexTarget> GetIndexTargets() const = 0;
  87    virtual std::vector<pkgIndexFile *> *GetIndexFiles() = 0;
  88    virtual bool IsTrusted() const = 0;
  89    virtual bool Load(std::string const &Filename, std::string * const ErrorText) = 0;
  90    /** @return a new metaIndex object based on this one, but without information from #Load */
  91    virtual metaIndex * UnloadedClone() const = 0;
  92    // the given metaIndex is potentially invalid after this call and should be deleted
  93    void swapLoad(metaIndex * const OldMetaIndex);
  94
  95    // Lookup functions for parsed Hashes
  96    checkSum *Lookup(std::string const &MetaKey) const;
  97    /** \brief tests if a checksum for this file is available */
  98    bool Exists(std::string const &MetaKey) const;
  99    std::vector<std::string> MetaKeys() const;
 100    TriState GetLoadedSuccessfully() const;
 101
 102    // Interfaces for pkgCacheGen
 103    virtual pkgCache::RlsFileIterator FindInCache(pkgCache &Cache, bool const ModifyCheck) const;
 104    virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
 105
 106
 107    metaIndex(std::string const &URI, std::string const &Dist,
 108              char const * const Type);
 109    virtual ~metaIndex();
 110 };
 111
 112 #endif