FileChecker.h

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#ifndef ZYPP_FILECHECKER_H
#define ZYPP_FILECHECKER_H
 
#include <iosfwd>
#include <list>
#include <zypp/base/DefaultIntegral.h>
#include <zypp/base/Exception.h>
#include <zypp/base/Function.h>
#include <zypp/PathInfo.h>
#include <zypp/CheckSum.h>
#include <zypp/KeyContext.h>
 
namespace zypp
{ 
 
  class PublicKey;
 
  typedef function<void ( const Pathname &file )> FileChecker;
 
  class FileCheckException : public Exception
  {
  public:
    FileCheckException(const std::string &msg)
      : Exception(msg)
    {}
  };
 
  class CheckSumCheckException : public FileCheckException
  {
  public:
    CheckSumCheckException(const std::string &msg)
      : FileCheckException(msg)
    {}
  };
 
  class SignatureCheckException : public FileCheckException
  {
  public:
    SignatureCheckException(const std::string &msg)
      : FileCheckException(msg)
    {}
  };
 
   class ChecksumFileChecker
   {
   public:
     typedef CheckSumCheckException ExceptionType;
     ChecksumFileChecker( const CheckSum &checksum );
     void operator()( const Pathname &file ) const;
   private:
     CheckSum _checksum;
   };
 
   class SignatureFileChecker
   {
     public:
       typedef SignatureCheckException ExceptionType;
 
     public:
      SignatureFileChecker( const Pathname &signature );
 
      SignatureFileChecker();
 
      void setKeyContext(const KeyContext & keycontext);
 
      const KeyContext & keyContext() const
      { return _context; }
 
      bool fileAccepted() const
      { return _fileAccepted; }
 
      bool fileValidated() const
      { return _fileValidated; }
 
      void addPublicKey( const PublicKey & publickey, const KeyContext & keycontext = KeyContext());
      void addPublicKey( const Pathname & publickey, const KeyContext & keycontext = KeyContext());
 
      void operator()( const Pathname &file ) const;
 
     protected:
      Pathname _signature;
      KeyContext _context;
      mutable DefaultIntegral<bool,false> _fileAccepted;
      mutable DefaultIntegral<bool,false> _fileValidated;
   };
 
   class NullFileChecker
   {
   public:
     void operator()( const Pathname &file )  const;
   };
 
   class CompositeFileChecker
   {
   public:
     void add( const FileChecker &checker );
     void operator()( const Pathname &file ) const;
 
     int checkersSize() const { return _checkers.size(); }
   private:
     std::list<FileChecker> _checkers;
   };
 
  std::ostream & operator<<( std::ostream & str, const FileChecker & obj );
 
} // namespace zypp
#endif // ZYPP_FILECHECKER_H