<?

/*
      +----------------------------------------------------------------------+
      | e-Class version 1.2                                                  |
      | based on CLAROLINE version 1.3.0 $Revision: 1.50 $                   |
      +----------------------------------------------------------------------+
      | Copyright (c) 2001, 2002 Universite catholique de Louvain (UCL)      |
      | Copyright (c) 2003 GUNet                                             |
      +----------------------------------------------------------------------+
      |   This program 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; either version 2     |
      |   of the License, or (at your option) any later version.             |
      |                                                                      |
      |   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., 59 Temple Place - Suite 330, Boston, MA          |
      |   02111-1307, USA. The GNU GPL license is also available through     |
      |   the world-wide-web at http://www.gnu.org/copyleft/gpl.html         |
      +----------------------------------------------------------------------+
      | e-Class Authors:    Costas Tsibanis <costas@noc.uoa.gr>              |       
      |                     Yannis Exidaridis <jexi@noc.uoa.gr>              |
      |                     Alexandros Diamantidis <adia@noc.uoa.gr>         |
      |                                                                      |
      | Claroline Authors:  Thomas Depraetere <depraetere@ipm.ucl.ac.be>     |           
      |                     Hugues Peeters    <peeters@ipm.ucl.ac.be>        |           
      |                     Christophe Geschι <gesche@ipm.ucl.ac.be>         |           
      |                                                                      |
      +----------------------------------------------------------------------+
*/


include('../claroline/include/config.php');

function file_to_get()
{
	$fileprefix = '/d2/downloads/eclass-1.2';
	if (p('type') == 'tgz' or $_GET['get'] == 'tgz') {
		return "$fileprefix.tar.gz";
	} else {
		return "$fileprefix.zip";
	}
}

$idiotites = array(
	0 => ' - επιλέξτε - ',
	1 => 'Καθηγητής',
	2 => 'Επιστημονικός συνεργάτης',
	3 => 'Μεταπτυχιακός φοιτητής',
	99 => 'Άλλο'
);

if (isset($_POST['download'])) {
	if (fields_missing()) {
		begin_page();
		show_missing_fields();
		show_form();
	} else {
		$id = insert_values();
		begin_page($id);
		show_download($id);
	}
	end_page();
} elseif (!empty($_GET['get']) and download_ok($_GET['id'])) {
		send_file(file_to_get());
} else {
	begin_page();
	show_intro();
	show_form();
	end_page();
}


function do_query($q)
{
        $res = mysql_query($q) or die("Query failed");
        return $res;
}

function db_connect()
{
	global $mysqlServer, $mysqlUser, $mysqlPassword, $mysqlMainDb;
	mysql_connect($mysqlServer, $mysqlUser, $mysqlPassword)
		or die("Could not connect");
	mysql_select_db($mysqlMainDb)
		or die("Could not select database");
}

function send_file($f)
{
	header("Content-Type: application/octet-stream");
	header("Content-Disposition: attachment; filename=".basename($f));
	readfile($f);
}

function download_ok($id)
{
	global $REMOTE_ADDR;
	db_connect();
	$r = do_query("SELECT id FROM eclass_download 
		WHERE ip = '" . mysql_escape_string($REMOTE_ADDR) .
		"' AND id = '" . mysql_escape_string($id) . "'");
	if (mysql_num_rows($r) > 0) {
		return TRUE;
	} else {
		return FALSE;
	}
}

function fields_missing()
{
	$empty = FALSE;
	foreach (array('name', 'surname', 'phone', 'email', 'idiotita', 'idryma') 
		as $i) {
		if (!$_POST[$i]) {
			$empty = TRUE;
		}
	}
	return $empty;
}

function p($v)
{
	if (isset($_POST[$v])) {
		return $_POST[$v];
	} else {
		return '';
	}
}

function show_idiotites_select()
{
	global $idiotites;
	if (!isset($_POST['idiotita'])) {
		$_POST['idiotita'] = 0;
	}
	foreach ($idiotites as $n => $s) {
		echo "<option value=\"$n\"";
		if ($_POST['idiotita'] == $n) {
			echo ' selected="1"';
		}
		echo ">$s</option>\n";
	}
}

function show_missing_fields()
{
?>
<tr><td>&nbsp;<br>Αφήσατε ένα ή περισσότερα από τα υποχρεωτικά πεδία κενά.
Παρακαλούμε συμπληρώστε όλα τα πεδία που είναι σημειωμένα με (*).</tr></td>
<?
}

function show_form()
{
	global $REQUEST_URI;
	if (!isset($_POST['type'])) {
		$_POST['type'] = 'tgz';
	}
?>
<tr><td>
<form method="post" action="">
<input type="hidden" name="download" value="1">
<table border="0">
<tr><td>Όνομα:</td><td><input type="text" name="name"
value="