zypp/CheckSum.h

   1 /*---------------------------------------------------------------------\
   2 |                          ____ _   __ __ ___                          |
   3 |                         |__  / \ / / . \ . \                         |
   4 |                           / / \ V /|  _/  _/                         |
   5 |                          / /__ | | | | | |                           |
   6 |                         /_____||_| |_| |_|                           |
   7 |                                                                      |
   8 \---------------------------------------------------------------------*/
   9 /** \file       zypp/CheckSum.h
  10  *
  11 */
  12 #ifndef ZYPP_CHECKSUM_H
  13 #define ZYPP_CHECKSUM_H
  14
  15 #include <iosfwd>
  16 #include <string>
  17
  18 #include "zypp/Pathname.h"
  19
  20 ///////////////////////////////////////////////////////////////////
  21 namespace zypp
  22 { /////////////////////////////////////////////////////////////////
  23
  24
  25   class CheckSum
  26   {
  27   public:
  28     /**
  29      * Creates a checksum for algorithm \param type
  30      * \throws if the checksum is invalid and can't be constructed
  31      */
  32     CheckSum( const std::string & type, const std::string & checksum);
  33     CheckSum( const std::string & type, std::istream & input_r );
  34     CheckSum();
  35
  36   public:
  37     static const std::string & md5Type();
  38     static const std::string & shaType();
  39     static const std::string & sha1Type();
  40     static const std::string & sha256Type();
  41
  42     static CheckSum md5( const std::string & checksum )
  43     { return  CheckSum( md5Type(), checksum); }
  44     static CheckSum sha( const std::string & checksum )
  45     { return  CheckSum( shaType(), checksum); }
  46     static CheckSum sha1( const std::string & checksum )
  47     { return  CheckSum( sha1Type(), checksum); }
  48     static CheckSum sha256( const std::string & checksum )
  49     { return  CheckSum( sha256Type(), checksum); }
  50
  51     static CheckSum md5( std::istream & input_r )
  52     { return  CheckSum( md5Type(), input_r ); }
  53     static CheckSum sha( std::istream & input_r )
  54     { return  CheckSum( sha1Type(), input_r ); }
  55     static CheckSum sha1( std::istream & input_r )
  56     { return  CheckSum( sha1Type(), input_r ); }
  57     static CheckSum sha256( std::istream & input_r )
  58     { return  CheckSum( sha256Type(), input_r ); }
  59
  60   public:
  61     std::string type() const;
  62     std::string checksum() const;
  63     bool empty() const;
  64
  65   private:
  66     std::string _type;
  67     std::string _checksum;
  68   };
  69
  70   /** \relates CheckSum Stream output. */
  71   std::ostream & operator<<( std::ostream & str, const CheckSum & obj );
  72
  73   /** \relates CheckSum */
  74   bool operator==( const CheckSum & lhs, const CheckSum & rhs );
  75
  76   /** \relates CheckSum */
  77   bool operator!=( const CheckSum & lhs, const CheckSum & rhs );
  78
  79 } // namespace zypp
  80 ///////////////////////////////////////////////////////////////////
  81 #endif // ZYPP_CHECKSUM_H