MediaDIR.cc

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#include <iostream>

#include "zypp/base/Logger.h"
#include "zypp/media/MediaDIR.h"

#include <sys/mount.h>
#include <errno.h>

using namespace std;

namespace zypp {
  namespace media {

    //
    //  CLASS NAME : MediaDIR
    //

    //
    //
    //  METHOD NAME : MediaDIR::MediaDIR
    //  METHOD TYPE : Constructor
    //
    //  DESCRIPTION : Attach point is always url_r.getPathName(),
    //                as files are not copied.
    //                Thus attach_point_hint_r is ignored.
    //
    MediaDIR::MediaDIR( const Url &      url_r,
                        const Pathname & /*attach_point_hint_r*/ )
        : MediaHandler( url_r, url_r.getPathName(),
                    "/",    // urlpath below attachpoint
                    false ) // does_download
    {
        MIL << "MediaDIR::MediaDIR(" << url_r << ")" << endl;
        if( !url_r.getHost().empty())
        {
          ZYPP_THROW(MediaBadUrlException(url_r,
            "Hostname not allowed in the Url"
          ));
        }
    }

    //
    //
    //  METHOD NAME : MediaDIR::attachTo
    //  METHOD TYPE : PMError
    //
    //  DESCRIPTION : Asserted that not already attached, and attachPoint is a directory.
    //
    void MediaDIR::attachTo(bool next)
    {
      if(next)
        ZYPP_THROW(MediaNotSupportedException(url()));

      // fetch attach point from url again if needed ...
      // it may happen that attachPointHint (and attachPoint())
      // does not contain any path, because the directory has
      // not existed while the handler was constructed.
      if( attachPoint().empty() && !url().getPathName().empty())
      {
        Pathname real( getRealPath(url().getPathName()));

        PathInfo adir( real);
        if( adir.isDir())
        {
          // set attachpoint only if the dir exists
          setAttachPoint( real, false);
        }
        else
        {
          ZYPP_THROW(MediaBadUrlException(url(),
            "Specified path '" + url().getPathName() + "' is not a directory"
          ));
        }
      }

      // attach point is same as source path... we do not mount here
      if(attachPoint().empty())
      {
        ZYPP_THROW(MediaBadUrlException(url(),
          "The media URL does not provide any useable directory path"
        ));
      }
      else
      if(!PathInfo(attachPoint()).isDir())
      {
        ZYPP_THROW(MediaBadUrlException(url(),
          "Specified path '" + attachPoint().asString() + "' is not a directory"
        ));
      }

      MediaSourceRef media(new MediaSource("dir", attachPoint().asString()));
      setMediaSource(media);
    }


    //
    //
    //  METHOD NAME : MediaDIR::releaseFrom
    //  METHOD TYPE : void
    //
    //  DESCRIPTION : Asserted that media is attached.
    //
    void MediaDIR::releaseFrom( const std::string & ejectDev )
    {
      return;
    }

    //
    //
    //  METHOD NAME : MediaDIR::getFile
    //  METHOD TYPE : PMError
    //
    //  DESCRIPTION : Asserted that media is attached.
    //
    void MediaDIR::getFile( const Pathname & filename ) const
    {
      MediaHandler::getFile( filename );
    }

    //
    //  METHOD NAME : MediaDIR::getDir
    //  METHOD TYPE : PMError
    //
    //  DESCRIPTION : Asserted that media is attached.
    //
    void MediaDIR::getDir( const Pathname & dirname, bool recurse_r ) const
    {
      MediaHandler::getDir( dirname, recurse_r );
    }

    //
    //
    //  METHOD NAME : MediaDIR::getDirInfo
    //  METHOD TYPE : PMError
    //
    //  DESCRIPTION : Asserted that media is attached and retlist is empty.
    //
    void MediaDIR::getDirInfo( std::list<std::string> & retlist,
                               const Pathname & dirname, bool dots ) const
    {
      MediaHandler::getDirInfo( retlist, dirname, dots );
    }

    //
    //
    //  METHOD NAME : MediaDIR::getDirInfo
    //  METHOD TYPE : PMError
    //
    //  DESCRIPTION : Asserted that media is attached and retlist is empty.
    //
    void MediaDIR::getDirInfo( filesystem::DirContent & retlist,
                               const Pathname & dirname, bool dots ) const
    {
      MediaHandler::getDirInfo( retlist, dirname, dots );
    }

    bool MediaDIR::getDoesFileExist( const Pathname & filename ) const
    {
      return MediaHandler::getDoesFileExist( filename );
    }

  } // namespace media
} // namespace zypp