Location: PHPKode > projects > ACollab > library/delete_file.php
<?php
/****************************************************************************************/
/* ACollab                                                                              */
/****************************************************************************************/
/* Copyright (c) 2002-2004  Adaptive Technology Resource Centre / University of Toronto */
/*                                                                                      */
/* http://atutor.ca/acollab                                                             */
/*                                                                                      */
/* This program is free software. You may 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 may access the GNU General Public License at:                                    */
/* http://www.opensource.org/licenses/gpl-license.php                                   */
/*                                                                                      */
/* You may contact the Adaptive Technology Resource Centre at                           */
/* Robarts Library, University of Toronto                                               */
/* 130 St. George Street, Toronto, Ontario, Canada M5S 1A5                              */
/* Further contact information is available at http://www.utoronto.ca/atrc/             */
/****************************************************************************************/
/* Programmer:                                                                          */
/* Joel Kronenberg - ATRC                                                               */
/****************************************************************************************/
// $Id: delete_file.php 234 2004-06-07 19:43:50Z boonhau $

define('AC_INCLUDE_PATH', '../include/');

require(AC_INCLUDE_PATH.'vitals.inc.php');
authenticate(USER_CLIENT, USER_GROUP_ADMIN);

	if (isset($_POST['cancel'])) {
		Header('Location: index.php');
		exit;
	}

$id = intval($_REQUEST['id']);
$cid = intval($_REQUEST['cid']);

if (isset($_POST['submit'])) {
	$code = md5($_SESSION['member_id'] . '+' . $id);
	if ($code != $_POST['code']) {
		header('Location: index.php?f='.F_FILE_DELETED);
		exit;
	}

	$sql	= "SELECT file_id FROM ".TABLE_PREFIX."files_revisions WHERE parent_file_id=$id";
	$result = mysql_query($sql, $db);
	if ($row = mysql_fetch_assoc($result)) {
		/* make the child the new parent */
		$sql	= "UPDATE ".TABLE_PREFIX."files_revisions SET parent_file_id=0 WHERE file_id=$row[file_id]";
		$result = mysql_query($sql, $db);

		$sql	= "UPDATE ".TABLE_PREFIX."events_files SET file_id=$row[file_id] WHERE file_id=$id";
		$result = mysql_query($sql, $db);
		
		$sql	= "UPDATE ".TABLE_PREFIX."categories_files SET file_id=$row[file_id] WHERE file_id=$id";
		$result = mysql_query($sql, $db);
	}

	$sql = "DELETE FROM ".TABLE_PREFIX."files_revisions WHERE file_id=$id AND group_id=$_SESSION[group_id]";
	mysql_query($sql, $db);
	
	$char = substr($id, 0, 1).'/';
	@unlink(UPLOAD_DIR.$char.$id);

	/* unlink the events */
	$sql = "DELETE FROM ".TABLE_PREFIX."events_files WHERE file_id=$id";
	mysql_query($sql, $db);
	
	/* unlink the categories */
	$sql = "DELETE FROM ".TABLE_PREFIX."categories_files WHERE file_id=$id";
	mysql_query($sql, $db);
	
	header('Location: cat_files.php?f='.F_FILE_DELETED.SEP.'cid='.$cid);
	exit;
}

$_SECTION[0][0] = _AC('home');
$_SECTION[0][1] = 'home.php';
$_SECTION[1][0] = _AC('library');
$_SECTION[1][1] = 'library/';
$_SECTION[2][0] = _AC('delete_file');
$_SECTION[2][1] = 'library/delete_file.php';

require(AC_INCLUDE_PATH.'header.inc.php');

	$sql = "SELECT * FROM ".TABLE_PREFIX."files_revisions WHERE file_id=$id AND group_id=$_SESSION[group_id]";
	$result = mysql_query($sql,$db);
	if (!($row = mysql_fetch_array($result))) {
		$errors[] = E_FILE_NOT_FOUND;
		print_errors($errors);
		require (AC_INCLUDE_PATH.'footer.inc.php');
		exit;
	} else if (($row['member_id'] != $_SESSION['member_id'])  && !authenticate(USER_GROUP_ADMIN, USER_RETURN_CHECK)){
		/* actually permission is denied, but for security we fake a "FNF" */
		$errors[] = E_FILE_NOT_FOUND;
		print_errors($errors);
		require (AC_INCLUDE_PATH.'footer.inc.php');
		exit;
	}
	$code = md5($_SESSION['member_id'] . '+' . $id);

?>
<br />
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
	<input type="hidden" name="id" value="<?php echo $id; ?>">
	<input type="hidden" name="cid" value="<?php echo $cid; ?>">
	<input type="hidden" name="code" value="<?php echo $code; ?>">
	<table border="0" cellspacing="0" cellpadding="2" align="center" class="box2">
	<tr>
		<th colspan="3" class="box"><h3><?php echo _AC('delete_file'); ?></h3></th>
	</tr>
	<tr bgcolor="white">
		<td>&nbsp;</td>
		<td><b><?php echo _AC('title'); ?>:</b> <?php echo $row['title']; ?></td>
		<td>&nbsp;</td>
	</tr>
	<tr>
		<td class="row1">&nbsp;</td>
		<td class="row1"><img src="images/clr.gif" height="1" width="1" alt="" /><br /><?php echo _AC('confirm_delete_file'); ?><br /></td>
		<td class="row1">&nbsp;</td>
	</tr>
	<tr bgcolor="white">
		<td class="row1">&nbsp;</td>
		<td class="row1" align="right"><br /><input type="submit" name="submit" value="<?php echo _AC('delete'); ?>" class="submitY" onfocus="this.className='submitY highlight'" onblur="this.className='submitY'" /> &nbsp; <input type="submit" name="cancel" value="<?php echo _AC('cancel'); ?>" class="submitN" onfocus="this.className='submitN highlight'" onblur="this.className='submitN'" /><br /><br /></td>
		<td class="row1">&nbsp;</td>
	</tr>
	</table>
</form>

<?php
	require(AC_INCLUDE_PATH.'footer.inc.php');
?>
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