<?vsp 
--  
--  $Id: nn_s_1_sample_1.vsp,v 1.2.2.1 2012/03/08 12:55:13 source Exp $
--  
--  This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
--  project.
--  
--  Copyright (C) 1998-2012 OpenLink Software
--  
--  This project is free software; you can redistribute it and/or modify it
--  under the terms of the GNU General Public License as published by the
--  Free Software Foundation; only version 2 of the License, dated June 1991.
--  
--  This program is distributed in the hope that it will be useful, but
--  WITHOUT ANY WARRANTY; without even the implied warranty of
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
--  General Public License for more details.
--  
--  You should have received a copy of the GNU General Public License along
--  with this program; if not, write to the Free Software Foundation, Inc.,
--  51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--  
--  

  declare step integer;
  declare idx integer;
  declare len integer;
  declare server varchar;
  declare glen, gstart, gend varchar;
  declare group_name varchar;
  declare getmethod varchar;
  declare err varchar;
  declare list any;
  declare _gr any;

  err := '';
  step := get_keyword ('step', params, '1');
  glen := get_keyword ('glen', params, '');
  gstart := get_keyword ('gstart', params, '0');
  gend := get_keyword ('gend', params, '0');
  server := get_keyword ('server_name', params, 'news.openlinksw.co.uk:119');
  group_name := {?'group_name'};
  getmethod := get_keyword ('getmethod', params, 'nntp_id_get');

  declare exit handler for sqlstate '*' { err := __SQL_MESSAGE; };
    {
       if (step = '2')
	    list :=  nntp_get (server, 'list');

       if (step = '3')
	 {
	    _gr :=  nntp_get (server, 'group', group_name);

	    glen := _gr [0];
	    gstart := _gr [1];
	    gend := _gr [2];
	 }

       if (step = '4')
	 {
	    declare gbegin integer;
	    gbegin := atoi(gstart);
	    if (atoi(glen) > 20)
	      gbegin := atoi(gend) - 19;
	    _gr :=  nntp_get (server, 'xover', group_name, gbegin, atoi(gend));
	 }
    }
?>
<HTML>
<head><link rel="stylesheet" type="text/css" href="../demo.css">
<SCRIPT LANGUAGE="JavaScript">
<!--
function setstep(n)
{
  document.nntp_get.step.value=n;
  return true;
}
-->
</script>
</head>
<BODY>
<FORM method="POST"  name="nntp_get" action="nn_s_1_sample_1.vsp">
<INPUT type="hidden" name="step" value="<?=step?>">
<p style="color: red"><?=err?></p>
<table class="tableentry" width="96%">
  <tr>
    <td>1. Enter NNTP server:</td>
    <td><INPUT type="text" name="server_name" value="<?=server?>" size="35"></td>
    <td><INPUT type="submit" name="get_gr1", value="Get group list" onclick="setstep(2)"></td>
  </tr>
  <tr>
    <td>2. Select group:</td>
<?vsp
    if (step = '1')
      http('<td>&nbsp;</td>');
    if (step = '2')
    {
        http('<td><SELECT NAME="group_name">');
        idx := 0;
	len := length (list);
	while (idx < len)
	{
	  group_name := aref (list [idx], 0);
	  http (sprintf ('<OPTION VALUE="%s">%s</OPTION>', group_name, group_name));
          idx := idx + 1;
	}
	http('</SELECT></td>');
    }
    if (step > '2')
    {	?> <td><INPUT type="hidden" name="group_name" value="<?=group_name?>">
    <INPUT type="hidden" name="glen" value="<?=glen?>">
    <INPUT type="hidden" name="gstart" value="<?=gstart?>">
    <INPUT type="hidden" name="gend" value="<?=gend?>">
    <?=group_name?><br />Has <?=glen?> messages.</td>
	<?vsp
    }
    if (step > '1')
      http('<td><INPUT type="submit" name="get_gr2", value="Select Group" onclick="setstep(3)"></td></tr>');
    else
      http('<td>&nbsp;</td></tr>');

    http('<tr><td nowrap>3. Message fetch method:</td>');
    if (step > '2')
    {
      http('<td nowrap><INPUT TYPE=RADIO NAME=getmethod VALUE="nntp_id_get" ');
      if (getmethod='nntp_id_get')
        http(' checked');
      http('>nntp_id_get()&nbsp;&nbsp;&nbsp;<INPUT TYPE=RADIO NAME=getmethod VALUE="nntp_get" ');
      if (getmethod='nntp_get')
        http(' checked');
      http('>nntp_get()</td><td><INPUT type="submit" name="get_head", value="Get headers" onclick="setstep(4)"></td></tr>');
    }
    else
      http('<td>&nbsp;</td><td>&nbsp;</td></tr>');


    if (step = '4')
    {
?>
    <tr><td colspan=3>4. Pick message from group: <?=group_name?> (Last 20 messages shown)</td></tr>
    <tr><td colspan=3><TABLE width="100%" border="1">
    <TR><TD><b>Subject</b></TD><TD><b>From</b></TD><TD><b>Date</b></TD></TR>
<?vsp
        idx := 0;
	len := length (_gr);

	while (idx < len)
	  {
	     list := _gr [idx];
	     http (sprintf ('<TR><TD><a href="nn_s_1_sample_1.vsp?getmethod=%U&group_name=%U&server_name=%U&step=5&glen=%U&gstart=%U&gend=%U',
		getmethod, group_name, server, glen, gstart, gend));
	     if (getmethod = 'nntp_id_get')
	     {
	       http (sprintf ('&id=%U">', list[4]));
	     }
	     else
	     {
	       http (sprintf ('&id=%d">', list[0]));
	     }
	     http (sprintf ('%s</a></TD><TD>%s</TD><TD>%s</TD></TR>',list[1], list[2], list[3]));
             idx := idx + 1;
	  }
	http('</table>');
    }
    http('</table>');

    if (step = '5')
    {
       declare id varchar;
       declare message any;

       id := get_keyword ('id', params, '0');

       http('<table class="tableresult" width="96%"><tr><td>');

       if (getmethod = 'nntp_id_get')
	 {
	    http (sprintf ('nntp_id_get (\'%s\', \'article\', \'%V\') <BR />', server, id));
            message := nntp_id_get (server, 'article', id);
	 }
       else
         {
	    idx := atoi (id);
	    http (sprintf ('nntp_get (\'%s\', \'article\', \'%s\', %i) <BR />',
		  server, group_name, idx));
	    message := nntp_get (server, 'article', group_name, idx);
	 }

       http ('<TEXTAREA COLS="80" ROWS="17">');
       http (aref (message [0], 1));
       http ('</TEXTAREA></TD></TR></TABLE>');
    }
?>
</FORM>
</BODY>
</HTML>
