Your IP : 216.73.216.63
| Current Path : /proc/self/cwd/ |
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| Current File : //proc/self/cwd/wfu_file_downloader.php |
<?php
include_once( dirname(__FILE__).'/lib/wfu_functions.php' );
include_once( dirname(__FILE__).'/lib/wfu_security.php' );
$handler = (isset($_POST['handler']) ? $_POST['handler'] : (isset($_GET['handler']) ? $_GET['handler'] : '-1'));
$session_legacy = (isset($_POST['session_legacy']) ? $_POST['session_legacy'] : (isset($_GET['session_legacy']) ? $_GET['session_legacy'] : ''));
$dboption_base = (isset($_POST['dboption_base']) ? $_POST['dboption_base'] : (isset($_GET['dboption_base']) ? $_GET['dboption_base'] : '-1'));
$dboption_useold = (isset($_POST['dboption_useold']) ? $_POST['dboption_useold'] : (isset($_GET['dboption_useold']) ? $_GET['dboption_useold'] : ''));
$wfu_cookie = (isset($_POST['wfu_cookie']) ? $_POST['wfu_cookie'] : (isset($_GET['wfu_cookie']) ? $_GET['wfu_cookie'] : ''));
if ( $handler == '-1' || $session_legacy == '' || $dboption_base == '-1' || $dboption_useold == '' || $wfu_cookie == '' ) die();
else {
$GLOBALS["wfu_user_state_handler"] = wfu_sanitize_code($handler);
$GLOBALS["WFU_GLOBALS"]["WFU_US_SESSION_LEGACY"] = array( "", "", "", ( $session_legacy == '1' ? 'true' : 'false' ), "", true );
$GLOBALS["WFU_GLOBALS"]["WFU_US_DBOPTION_BASE"] = array( "", "", "", wfu_sanitize_code($dboption_base), "", true );
$GLOBALS["WFU_GLOBALS"]["WFU_US_DBOPTION_USEOLD"] = array( "", "", "", ( $dboption_useold == '1' ? 'true' : 'false' ), "", true );
if ( !defined("WPFILEUPLOAD_COOKIE") ) DEFINE("WPFILEUPLOAD_COOKIE", wfu_sanitize_tag($wfu_cookie));
wfu_download_file();
}
function wfu_download_file() {
global $wfu_user_state_handler;
$file_code = (isset($_POST['file']) ? $_POST['file'] : (isset($_GET['file']) ? $_GET['file'] : ''));
$ticket = (isset($_POST['ticket']) ? $_POST['ticket'] : (isset($_GET['ticket']) ? $_GET['ticket'] : ''));
if ( $file_code == '' || $ticket == '' ) die();
wfu_initialize_user_state();
$ticket = wfu_sanitize_code($ticket);
$file_code = wfu_sanitize_code($file_code);
//if download ticket does not exist or is expired die
if ( !WFU_USVAR_exists_downloader('wfu_download_ticket_'.$ticket) || time() > WFU_USVAR_downloader('wfu_download_ticket_'.$ticket) ) {
WFU_USVAR_unset_downloader('wfu_download_ticket_'.$ticket);
WFU_USVAR_unset_downloader('wfu_storage_'.$file_code);
wfu_update_download_status($ticket, 'failed');
die();
}
//destroy ticket so it cannot be used again
WFU_USVAR_unset_downloader('wfu_download_ticket_'.$ticket);
//if file_code starts with exportdata, then this is a request for export of
//uploaded file data, so disposition_name will not be the filename of the file
//but wfu_export.csv; also set flag to delete file after download operation
if ( substr($file_code, 0, 10) == "exportdata" ) {
$file_code = substr($file_code, 10);
//$filepath = wfu_get_filepath_from_safe($file_code);
$filepath = WFU_USVAR_downloader('wfu_storage_'.$file_code);
$disposition_name = "wfu_export.csv";
$delete_file = true;
}
else {
//$filepath = wfu_get_filepath_from_safe($file_code);
$filepath = WFU_USVAR_downloader('wfu_storage_'.$file_code);
if ( $filepath === false ) {
WFU_USVAR_unset_downloader('wfu_storage_'.$file_code);
wfu_update_download_status($ticket, 'failed');
die();
}
$filepath = wfu_flatten_path($filepath);
if ( substr($filepath, 0, 1) == "/" ) $filepath = substr($filepath, 1);
$filepath = ( substr($filepath, 0, 6) == 'ftp://' || substr($filepath, 0, 7) == 'ftps://' || substr($filepath, 0, 7) == 'sftp://' ? $filepath : WFU_USVAR_downloader('wfu_ABSPATH').$filepath );
$disposition_name = wfu_basename($filepath);
$delete_file = false;
}
//destroy file code as it is no longer needed
WFU_USVAR_unset_downloader('wfu_storage_'.$file_code);
//check that file exists
if ( !file_exists($filepath) ) {
wfu_update_download_status($ticket, 'failed');
die('<script language="javascript">alert("'.( WFU_USVAR_exists_downloader('wfu_browser_downloadfile_notexist') ? WFU_USVAR_downloader('wfu_browser_downloadfile_notexist') : 'File does not exist!' ).'");</script>');
}
$open_session = false;
@set_time_limit(0); // disable the time limit for this script
$fsize = filesize($filepath);
if ( $fd = @fopen ($filepath, "rb") ) {
$open_session = ( ( $wfu_user_state_handler == "session" || $wfu_user_state_handler == "" ) && ( function_exists("session_status") ? ( PHP_SESSION_ACTIVE !== session_status() ) : ( empty(session_id()) ) ) );
if ( $open_session ) session_start();
header('Content-Type: application/octet-stream');
header("Content-Disposition: attachment; filename=\"".$disposition_name."\"");
header('Content-Transfer-Encoding: binary');
header('Connection: Keep-Alive');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header("Content-length: $fsize");
$failed = false;
while( !feof($fd) ) {
$buffer = @fread($fd, 1024*8);
echo $buffer;
ob_flush();
flush();
if ( connection_status() != 0 ) {
$failed = true;
break;
}
}
fclose ($fd);
}
else $failed = true;
if ( $delete_file ) unlink($filepath);
if ( !$failed ) {
wfu_update_download_status($ticket, 'downloaded');
if ( $open_session ) session_write_close();
die();
}
else {
wfu_update_download_status($ticket, 'failed');
if ( $open_session ) session_write_close();
die('<script type="text/javascript">alert("'.( WFU_USVAR_exists_downloader('wfu_browser_downloadfile_failed') ? WFU_USVAR_downloader('wfu_browser_downloadfile_failed') : 'Could not download file!' ).'");</script>');
}
}
function wfu_update_download_status($ticket, $new_status) {
require_once WFU_USVAR_downloader('wfu_ABSPATH').'wp-load.php';
WFU_USVAR_store('wfu_download_status_'.$ticket, $new_status);
}
function WFU_USVAR_exists_downloader($var) {
global $wfu_user_state_handler;
if ( $wfu_user_state_handler == "dboption" && WFU_VAR("WFU_US_DBOPTION_BASE") == "cookies" ) return isset($_COOKIE[$var]);
else return WFU_USVAR_exists_session($var);
}
function WFU_USVAR_downloader($var) {
global $wfu_user_state_handler;
if ( $wfu_user_state_handler == "dboption" && WFU_VAR("WFU_US_DBOPTION_BASE") == "cookies" ) return $_COOKIE[$var];
else return WFU_USVAR_session($var);
}
function WFU_USVAR_unset_downloader($var) {
global $wfu_user_state_handler;
if ( $wfu_user_state_handler == "session" || $wfu_user_state_handler == "" ) WFU_USVAR_unset_session($var);
}