function __construct()
{
wpfb_loadclass('Download', 'Admin');
$dir = WPFB_Core::UploadDir() . '/.tmp/';
WPFB_Admin::Mkdir($dir);
$test_files = array('banner.png' => 'https://wpfilebase.com/wp-content/blogs.dir/2/files/2015/03/banner_023.png', 'small.txt' => 'https://wpfilebase.com/robots.txt');
$this->local_files = array();
foreach ($test_files as $f => $u) {
$fn = $dir . $f;
$this->local_files[$f] = $fn;
if (file_exists($fn)) {
continue;
}
echo "Downloading test file {$u}\n";
WPFB_Download::SideloadFile($u, $fn);
}
}
static function SendFile($file_path, $args = array())
{
global $wpdb;
$defaults = array('bandwidth' => 0, 'etag' => null, 'force_download' => WPFB_Core::$settings->force_download, 'cache_max_age' => 0, 'md5_hash' => null, 'filename' => null);
extract(wp_parse_args($args, $defaults), EXTR_SKIP);
@ini_set('max_execution_time', '0');
@set_time_limit(0);
@error_reporting(0);
while (@ob_end_clean()) {
}
$no_cache = WPFB_Core::$settings->http_nocache && $cache_max_age != 0;
@ini_set("zlib.output_compression", "Off");
// remove some headers
if (function_exists('header_remove')) {
header_remove();
} else {
header("Expires: ");
header("X-Pingback: ");
}
if (!@file_exists($file_path) || !is_file($file_path)) {
header('HTTP/1.x 404 Not Found');
wp_die('File ' . basename($file_path) . ' not found!');
}
wpfb_loadclass('FileUtils');
$size = WPFB_FileUtils::GetFileSize($file_path);
$time = filemtime($file_path);
$file_type = WPFB_Download::GetFileType($file_path);
if (empty($etag)) {
$etag = md5("{$size}|{$time}|{$file_type}");
} else {
$etag = trim($etag, '"');
}
// set basic headers
if ($no_cache) {
header("Cache-Control: no-cache, must-revalidate, max-age=0");
header("Pragma: no-cache");
header("Expires: Wed, 11 Jan 1984 05:00:00 GMT");
} elseif ($cache_max_age > 0) {
header("Cache-Control: must-revalidate, max-age={$cache_max_age}");
} elseif ($cache_max_age == -1) {
header("Cache-Control: public");
}
//header("Connection: close");
//header("Keep-Alive: timeout=5, max=100");
//header("Connection: Keep-Alive");
header("Content-Type: " . $file_type . (strpos($file_type, 'text/') !== false ? '; charset=' : ''));
// charset fix
header("Last-Modified: " . gmdate("D, d M Y H:i:s", $no_cache ? time() : $time) . " GMT");
if (!empty($md5_hash) && $md5_hash[0] != '#') {
// check if fake md5
$pmd5 = @pack('H32', $md5_hash);
if (!empty($pmd5)) {
header("Content-MD5: " . @base64_encode($pmd5));
}
}
if (!$no_cache) {
header("ETag: \"{$etag}\"");
$if_mod_since = !empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false;
$if_none_match = !empty($_SERVER['HTTP_IF_NONE_MATCH']) ? $etag == trim($_SERVER['HTTP_IF_NONE_MATCH'], '"') : false;
if ($if_mod_since || $if_none_match) {
$not_modified = true;
if ($not_modified && $if_mod_since) {
$not_modified = @strtotime($if_mod_since) >= $time;
}
if ($not_modified && $if_none_match) {
$not_modified = $if_none_match == $etag;
}
if ($not_modified) {
header("Content-Length: " . $size);
header("HTTP/1.x 304 Not Modified");
exit;
}
}
}
if (!($fh = @fopen($file_path, 'rb'))) {
wp_die(__('Could not read file!', 'wp-filebase'));
}
list($begin, $end) = self::ParseRangeHeader($size);
if ($begin > 0 || $end < $size - 1) {
header('HTTP/1.0 206 Partial Content');
header("Content-Range: bytes {$begin}-{$end}/{$size}");
} else {
header('HTTP/1.0 200 OK');
}
$length = $end - $begin + 1;
WPFB_Download::AddTraffic($length);
if (self::ShouldSendRangeHeader($file_path, $file_type)) {
header("Accept-Ranges: bytes");
}
$request_file_name = basename(urldecode(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)));
$filename_set = !empty($filename);
if (!$filename_set) {
$filename = basename($file_path);
}
// content headers
if ($force_download) {
header("Content-Disposition: attachment; filename=\"{$filename}\"");
header("Content-Description: File Transfer");
} elseif ($filename != $request_file_name) {
header("Content-Disposition: inline; filename=\"{$filename}\"");
}
header("Content-Length: " . $length);
// clean up things that are not needed for download
@session_write_close();
// disable blocking of multiple downloads at the same time
// close db connection
if (method_exists($wpdb, 'close')) {
$wpdb->close();
} elseif (function_exists('mysql_close')) {
if (!empty($wpdb->dbh) && is_resource($wpdb->dbh)) {
@mysql_close($wpdb->dbh);
} else {
@mysql_close();
}
}
@ob_flush();
@flush();
// ready to send the file!
if ($begin > 0) {
fseek($fh, $begin, 0);
}
if (WPFB_Core::$settings->use_fpassthru) {
fpassthru($fh);
} else {
$bandwidth = empty($bandwidth) ? 0 : (double) $bandwidth;
if ($bandwidth <= 0) {
$bandwidth = 1024 * 1024;
}
$buffer_size = (int) (1024 * min($bandwidth, 64));
// convert kib/s => bytes/ms
$bandwidth *= 1024 / 1000;
$cur = $begin;
while (!@feof($fh) && $cur <= $end && @connection_status() == 0) {
$nbytes = min($buffer_size, $end - $cur + 1);
$ts = microtime(true);
print @fread($fh, $nbytes);
@ob_flush();
@flush();
$dt = (microtime(true) - $ts) * 1000;
// dt = time delta in ms
$st = $nbytes / $bandwidth - $dt;
if ($st > 0) {
usleep($st * 1000);
}
$cur += $nbytes;
}
}
@fclose($fh);
return true;
}
public static function SideloadFile($url, $dest_file = null, $size_for_progress = 0)
{
//WARNING: The file is not automatically deleted, The script must unlink() the file.
@ini_set('max_execution_time', '0');
@set_time_limit(0);
require_once ABSPATH . 'wp-admin/includes/file.php';
if (!$url) {
return array('error' => __('Invalid URL Provided.'));
}
if (empty($dest_file)) {
// if no dest file set, create temp file
$fi = self::GetRemoteFileInfo($url);
if (empty($fi)) {
return array('error' => sprintf(__('Could not get file information from %s!', WPFB), $url));
}
if (!($dest_file = self::GetTmpFile($fi['name']))) {
return array('error' => __('Could not create Temporary file.'));
}
}
if ($size_for_progress >= self::$MIN_SIZE_FOR_PROGRESSBAR) {
if (!class_exists('progressbar')) {
include_once WPFB_PLUGIN_ROOT . 'extras/progressbar.class.php';
}
$progress_bar = new progressbar(0, $size_for_progress, 300, 30, '#aaa');
echo "<p><code>" . esc_html($url) . "</code> ...</p>";
$progress_bar->print_code();
} else {
$progress_bar = null;
}
wpfb_loadclass('Download');
$result = WPFB_Download::SideloadFile($url, $dest_file, $progress_bar);
if (is_array($result) && !empty($result['error'])) {
return $result;
}
return array('error' => false, 'file' => $dest_file);
}
function Download()
{
global $wpdb, $current_user, $user_ID;
@error_reporting(0);
wpfb_loadclass('Category', 'Download');
$downloader_ip = preg_replace('/[^0-9a-fA-F:., ]/', '', $_SERVER['REMOTE_ADDR']);
get_currentuserinfo();
$logged_in = !empty($user_ID);
$user_role = $logged_in ? reset($current_user->roles) : null;
// get user's highest role (like in user-eidt.php)
$is_admin = current_user_can('manage_options');
// check user level
if (!$this->CurUserCanAccess()) {
$this->DownloadDenied('inaccessible_msg');
}
// check offline
if ($this->file_offline && !$is_admin) {
wp_die(WPFB_Core::$settings->file_offline_msg);
}
// check referrer
if ($this->file_direct_linking != 1) {
// if referer check failed, redirect to the file post
if (!WPFB_Download::RefererCheck()) {
$url = WPFB_Core::GetPostUrl($this->file_post_id);
if (empty($url)) {
$url = home_url();
}
wp_redirect($url);
exit;
}
}
// check traffic
if ($this->IsLocal() && !WPFB_Download::CheckTraffic($this->file_size)) {
header('HTTP/1.x 503 Service Unavailable');
wp_die(WPFB_Core::$settings->traffic_exceeded_msg);
}
// check daily user limit
if (!$is_admin && WPFB_Core::$settings->daily_user_limits) {
if (!$logged_in) {
$this->DownloadDenied('inaccessible_msg');
}
$today = intval(date('z'));
$usr_dls_today = intval(get_user_option(WPFB_OPT_NAME . '_dls_today'));
$usr_last_dl_day = intval(date('z', intval(get_user_option(WPFB_OPT_NAME . '_last_dl'))));
if ($today != $usr_last_dl_day) {
$usr_dls_today = 0;
}
// check for limit
$dl_limit = intval(WPFB_Core::GetOpt('daily_limit_' . $user_role));
if ($dl_limit > 0 && $usr_dls_today >= $dl_limit) {
$this->DownloadDenied(sprintf(WPFB_Core::$settings->daily_limit_exceeded_msg, $dl_limit));
}
$usr_dls_today++;
update_user_option($user_ID, WPFB_OPT_NAME . '_dls_today', $usr_dls_today);
update_user_option($user_ID, WPFB_OPT_NAME . '_last_dl', time());
}
// count download
if (!$is_admin || !WPFB_Core::$settings->ignore_admin_dls) {
$last_dl_time = mysql2date('U', $this->file_last_dl_time, false);
if (empty($this->file_last_dl_ip) || $this->file_last_dl_ip != $downloader_ip || time() - $last_dl_time > 86400) {
$wpdb->query("UPDATE " . $wpdb->wpfilebase_files . " SET file_hits = file_hits + 1, file_last_dl_ip = '" . $downloader_ip . "', file_last_dl_time = '" . current_time('mysql') . "' WHERE file_id = " . (int) $this->file_id);
}
}
// external hooks
do_action('wpfilebase_file_downloaded', $this->file_id);
$url = $this->GetRemoteUri();
$is_local_remote = !empty($url) && parse_url($url, PHP_URL_SCHEME) === 'file' && is_readable($url);
// download or redirect
if ($this->IsLocal() || $is_local_remote) {
$bw = 'bitrate_' . ($logged_in ? 'registered' : 'unregistered');
WPFB_Download::SendFile($is_local_remote ? $url : $this->GetLocalPath(), array('bandwidth' => WPFB_Core::$settings->{$bw}, 'etag' => $this->file_hash, 'md5_hash' => WPFB_Core::$settings->fake_md5 ? null : $this->file_hash, 'force_download' => WPFB_Core::$settings->force_download || $this->file_force_download, 'cache_max_age' => 10, 'filename' => empty($this->file_name_original) ? $this->file_name : $this->file_name_original));
} else {
//header('HTTP/1.1 301 Moved Permanently');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Expires: Thu, 01 Jan 1970 00:00:00 GMT');
header('Location: ' . $url);
}
exit;
}
<?php
define('FASTLOAD', true);
require_once 'wpfb-load.php';
wpfb_loadclass('Core', 'File', 'Category', 'Download');
$item = null;
if (isset($_GET['fid'])) {
$fid = intval($_GET['fid']);
if ($fid == 0) {
$img_path = ABSPATH . WPINC . '/images/';
if (file_exists($img = $img_path . 'crystal/default.png') || file_exists($img = $img_path . 'default.png') || file_exists($img = $img_path . 'blank.gif')) {
WPFB_Download::SendFile($img, array('cache_max_age' => -1));
}
//was 3600 * 12
exit;
}
$item = WPFB_File::GetFile($fid);
} elseif (isset($_GET['cid'])) {
$item = WPFB_Category::GetCat(intval($_GET['cid']));
}
if ($item == null || !$item->CurUserCanAccess(true)) {
exit;
}
// if no thumbnail, redirect
if (empty($item->file_thumbnail) && empty($item->cat_icon)) {
header('Location: ' . $item->GetIconUrl());
exit;
}
// send thumbnail
WPFB_Download::SendFile($item->GetThumbPath(), array('cache_max_age' => -1));
// was 3600 * 12
