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Revision 947

Added by Jing Tao almost 23 years ago

The feature of check permission before Metacat handle a "read" action. If user doesn't have permission, its request will be rejected.
After creating a DocumentImpl object. A method named hasReadPermission in that class will be called to make sure the user has permission to read it.

View differences:

src/edu/ucsb/nceas/metacat/MetaCatServlet.java
276 276 
        }
277 277 
      }
278 278
279 
      // Now that we know the session is valid, we can delegate the request
279 
       // Now that we know the session is valid, we can delegate the request
280 280 
      // to a particular action handler
281 281 
      if(action.equals("query")) {
282 282 
        handleQuery(response.getWriter(),params,response,username,groupnames);
......
288 288 
          out.println("Illegal action squery without \"query\" parameter");
289 289 
        }
290 290 
      } else if (action.equals("export")) {
291 
        //username and groupname have to continue using though they are
292 
        //not standard
291 
        //"username" and "groupname" have to continue using though they are
292 
        //not standard variable name
293 293 
        handleExportAction(params, response, username, groupnames);
294 294 
      } else if (action.equals("read")) {
295 295 
        handleReadAction(params, response, username, groupnames);
......
777 777 
            // get only docid, eliminate the rest
778 778 
            docid = (String)murlQueryStr.get("docid");
779 779 
            if ( zip ) {
780 
              addDocToZip(docid, zout);
780 
              addDocToZip(docid, zout, user, groups);
781 781 
            } else {
782 782 
              readFromMetacat(response, docid, qformat, abstrpath,
783 783 
                              user, groups, zip, zout);
......
787 787 
          } else {
788 788 
            docid = docs[i];
789 789 
            if ( zip ) {
790 
              addDocToZip(docid, zout);
790 
              addDocToZip(docid, zout, user, groups);
791 791 
            } else {
792 792 
              readFromURLConnection(response, docid);
793 793 
            }
......
797 797 
        } catch (MalformedURLException mue) {
798 798 
          docid = docs[i];
799 799 
          if ( zip ) {
800 
            addDocToZip(docid, zout);
800 
            addDocToZip(docid, zout, user, groups);
801 801 
          } else {
802 802 
            readFromMetacat(response, docid, qformat, abstrpath,
803 803 
                            user, groups, zip, zout);
......
811 811 
        zout.close();  //close the zip stream
812 812 
      }
813 813
814 
        /*
815 
    } catch (ClassNotFoundException cnfe) {
816 
    } catch (IOException ioe1) {
817 
    } catch (SQLException se) {
818 
    } catch (McdbException mcdbe) {
814
819 815 
    } catch (Exception e) {
820 
      */
821 
    } catch (Exception e) {
822 816 
      try {
823 817 
        response.setContentType("text/xml"); //MIME type
824 818 
        //PrintWriter pw = response.getWriter();
......
859 853 
      conn = util.getConnection();
860 854 
      DocumentImpl doc = new DocumentImpl(conn, docid);
861 855
856 
      //check the permission for read
857 
      if (!doc.hasReadPermission(conn, user, groups, docid))
858 
      {
859 
        Exception e = new Exception("User " + user + " does not have permission"
860 
                       +" to read the document with the docid " + docid);
861 
        util.returnConnection(conn);
862 
        throw e;
863 
      }
864
862 865 
      if ( doc.getRootNodeID() == 0 ) {
863 866 
        // this is data file
864 867 
        ServletOutputStream out = response.getOutputStream();
......
978 981 
  }
979 982
980 983 
  // read file/doc and write to ZipOutputStream
981 
  private void addDocToZip(String docid, ZipOutputStream zout)
984 
  private void addDocToZip(String docid, ZipOutputStream zout,
985 
                              String user, String[] groups)
982 986 
               throws ClassNotFoundException, IOException, SQLException,
983 987 
                      McdbException, Exception
984 988 
  {
......
1012 1016 
      try {
1013 1017 
        conn = util.getConnection();
1014 1018 
        DocumentImpl doc = new DocumentImpl(conn, docid);
1015
1019
1020 
        //check the permission for read
1021 
        if (!doc.hasReadPermission(conn, user, groups, docid))
1022 
        {
1023 
          Exception e = new Exception("User " + user + " does not have "
1024 
                    +"permission to read the document with the docid " + docid);
1025 
          util.returnConnection(conn);
1026 
          throw e;
1027 
        }
1028
1016 1029 
        if ( doc.getRootNodeID() == 0 ) {
1017 1030 
          // this is data file; add file to zip
1018 1031 
          String filepath = util.getOption("datafilepath");

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