/**
* Handles Download Access permissions.
*
* @package optimizeMember\Files
* @since 3.5
*
* @attaches-to ``add_action("init");``
* @also-called-by API Function {@link optimizeMember\API_Functions\optimizemember_file_download_url()}, w/ ``$create_file_download_url`` param.
*
* @param array $create_file_download_url Optional. If this function is called directly, we can pass arguments through this array.
* Possible array elements: `file_download` *(required)*, `file_download_key`, `file_stream`, `file_inline`, `file_storage`, `file_remote`, `file_ssl`, `file_rewrite`, `file_rewrite_base`, `skip_confirmation`, `url_to_storage_source`, `count_against_user`, `check_user`.
* @return null|str If called directly with ``$create_file_download_url``, returns a string with the URL, based on configuration.
* Else, this function may exit script execution after serving a File Download.
*/
public static function check_file_download_access($create_file_download_url = FALSE)
{
eval('foreach(array_keys(get_defined_vars())as$__v)$__refs[$__v]=&$$__v;');
do_action("ws_plugin__optimizemember_before_file_download_access", get_defined_vars());
unset($__refs, $__v);
/* Unset defined __refs, __v. */
/**/
$_g = !empty($_GET) ? $_GET : array();
$_g = c_ws_plugin__optimizemember_utils_strings::trim_deep(stripslashes_deep($_g));
/**/
$creating = is_array($create = $create_file_download_url) ? true : false;
$serving = !$creating ? true : false;
$serving_range = $range = false;
if ($serving) {
$range = (string) @$_SERVER["HTTP_RANGE"];
if (!$range && function_exists("apache_request_headers")) {
/* Note: ``apache_request_headers()`` works in FastCGI too, starting w/ PHP v5.4. */
foreach ((array) apache_request_headers() as $_header => $_value) {
if (is_string($_header) && strcasecmp($_header, "range") === 0) {
$range = $_value;
}
}
}
if ($range) {
$serving_range = true;
}
unset($_header, $_value);
}
/**/
$req["file_download"] = $creating ? @$create["file_download"] : @$_g["optimizemember_file_download"];
$req["file_download_key"] = $creating ? @$create["file_download_key"] : @$_g["optimizemember_file_download_key"];
/**/
$req["file_stream"] = $creating ? @$create["file_stream"] : @$_g["optimizemember_file_stream"];
$req["file_inline"] = $creating ? @$create["file_inline"] : @$_g["optimizemember_file_inline"];
$req["file_storage"] = $creating ? @$create["file_storage"] : @$_g["optimizemember_file_storage"];
$req["file_remote"] = $creating ? @$create["file_remote"] : @$_g["optimizemember_file_remote"];
$req["file_ssl"] = $creating ? @$create["file_ssl"] : @$_g["optimizemember_file_ssl"];
/**/
$req["file_rewrite"] = $creating ? @$create["file_rewrite"] : null;
$req["file_rewrite_base"] = $creating ? @$create["file_rewrite_base"] : null;
/**/
$req["skip_confirmation"] = $creating ? @$create["skip_confirmation"] : null;
$req["url_to_storage_source"] = $creating ? @$create["url_to_storage_source"] : null;
$req["count_against_user"] = $creating ? @$create["count_against_user"] : null;
$req["check_user"] = $creating ? @$create["check_user"] : null;
/**/
if ($req["file_download"] && is_string($req["file_download"]) && ($req["file_download"] = trim($req["file_download"], "/"))) {
if (strpos($req["file_download"], "..") === false && strpos(basename($req["file_download"]), ".") !== 0) {
$using_amazon_cf_storage = (!$req["file_storage"] || strcasecmp((string) $req["file_storage"], "cf") === 0) && c_ws_plugin__optimizemember_utils_conds::using_amazon_cf_storage() ? true : false;
$using_amazon_s3_storage = (!$req["file_storage"] || strcasecmp((string) $req["file_storage"], "s3") === 0) && c_ws_plugin__optimizemember_utils_conds::using_amazon_s3_storage() ? true : false;
$using_amazon_storage = $using_amazon_cf_storage || $using_amazon_s3_storage ? true : false;
/**/
$excluded = apply_filters("ws_plugin__optimizemember_check_file_download_access_excluded", false, get_defined_vars());
$valid_file_download_key = $req["file_download_key"] && is_string($req["file_download_key"]) && $creating && (!isset($req["check_user"]) || !filter_var($req["check_user"], FILTER_VALIDATE_BOOLEAN)) && (!isset($req["count_against_user"]) || !filter_var($req["count_against_user"], FILTER_VALIDATE_BOOLEAN)) ? true : false;
$valid_file_download_key = !$valid_file_download_key && $req["file_download_key"] && is_string($req["file_download_key"]) ? c_ws_plugin__optimizemember_files_in::check_file_download_key($req["file_download"], $req["file_download_key"]) : false;
$checking_user = $excluded || $valid_file_download_key || $creating && (!isset($req["check_user"]) || !filter_var($req["check_user"], FILTER_VALIDATE_BOOLEAN)) && (!isset($req["count_against_user"]) || !filter_var($req["count_against_user"], FILTER_VALIDATE_BOOLEAN)) ? false : true;
$updating_user_counter = $serving_range || !$checking_user || $creating && (!isset($req["count_against_user"]) || !filter_var($req["count_against_user"], FILTER_VALIDATE_BOOLEAN)) ? false : true;
/**/
if (($serving || $creating) && $checking_user) {
if (!$using_amazon_storage && !file_exists($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["files_dir"] . "/" . $req["file_download"])) {
if ($serving) {
status_header(404) . header("Content-Type: text/html; charset=utf-8") . eval('while (@ob_end_clean ());') . exit(_x('<strong>404: Sorry, file not found.</strong> Please contact Support for assistance.', "s2member-front", "s2member"));
} else {
/* Else return false. */
return false;
}
} else {
if ($req["file_download_key"] && is_string($req["file_download_key"]) && !$valid_file_download_key) {
if ($serving) {
status_header(503) . header("Content-Type: text/html; charset=utf-8") . eval('while (@ob_end_clean ());') . exit(_x('<strong>503 ( Invalid Key ):</strong> Sorry, your access to this file has expired. Please contact Support for assistance.', "s2member-front", "s2member"));
} else {
/* Else return false. */
return false;
}
} else {
if ($GLOBALS["WS_PLUGIN__"]["optimizemember"]["o"]["membership_options_page"] || ($file_downloads_enabled_by_site_owner = $min_level_4_downloads = c_ws_plugin__optimizemember_files::min_level_4_downloads()) === false) {
if ($serving) {
if (!has_filter("ws_plugin__optimizemember_check_file_download_access_user", "c_ws_plugin__optimizemember_files_in::check_file_remote_authorization")) {
add_filter("ws_plugin__optimizemember_check_file_download_access_user", "c_ws_plugin__optimizemember_files_in::check_file_remote_authorization", 10, 2);
}
}
/**/
if ($creating) {
if (has_filter("ws_plugin__optimizemember_check_file_download_access_user", "c_ws_plugin__optimizemember_files_in::check_file_remote_authorization")) {
remove_filter("ws_plugin__optimizemember_check_file_download_access_user", "c_ws_plugin__optimizemember_files_in::check_file_remote_authorization", 10, 2);
}
}
/**/
if (isset($file_downloads_enabled_by_site_owner, $min_level_4_downloads) && $file_downloads_enabled_by_site_owner === false || ($file_downloads_enabled_by_site_owner = $min_level_4_downloads = c_ws_plugin__optimizemember_files::min_level_4_downloads()) === false) {
if ($serving) {
status_header(503) . header("Content-Type: text/html; charset=utf-8") . eval('while (@ob_end_clean ());') . exit(_x('<strong>503: Basic File Downloads are NOT enabled yet.</strong> Please contact Support for assistance. If you are the site owner, please configure: <code>optimizeMember -> Download Options -> Basic Download Restrictions</code>.', "s2member-front", "s2member"));
} else {
/* Else return false. */
return false;
}
} else {
if (!is_object($user = apply_filters("ws_plugin__optimizemember_check_file_download_access_user", is_user_logged_in() ? wp_get_current_user() : false, get_defined_vars())) || empty($user->ID) || !($user_id = $user->ID) || !is_array($user_file_downloads = c_ws_plugin__optimizemember_files::user_downloads($user)) || !$user->has_cap("administrator") && (!$user_file_downloads["allowed"] || !$user_file_downloads["allowed_days"])) {
if (preg_match("/(?:^|\\/)access[_\\-]optimizemember[_\\-]level([0-9]+)\\//", $req["file_download"], $m) && strlen($req_level = $m[1]) && (!is_object($user) || empty($user->ID) || !$user->has_cap("access_optimizemember_level" . $req_level))) {
if ($serving) {
c_ws_plugin__optimizemember_mo_page::wp_redirect_w_mop_vars("file", $req["file_download"], "level", $req_level, $_SERVER["REQUEST_URI"]) . exit;
} else {
/* Else return false. */
return false;
}
} else {
if (preg_match("/(?:^|\\/)access[_\\-]optimizemember[_\\-]ccap[_\\-](.+?)\\//", $req["file_download"], $m) && strlen($req_ccap = preg_replace("/-/", "_", $m[1])) && (!is_object($user) || empty($user->ID) || !$user->has_cap("access_optimizemember_ccap_" . $req_ccap))) {
if ($serving) {
c_ws_plugin__optimizemember_mo_page::wp_redirect_w_mop_vars("file", $req["file_download"], "ccap", $req_ccap, $_SERVER["REQUEST_URI"]) . exit;
} else {
/* Else return false. */
return false;
}
} else {
if ($serving) {
c_ws_plugin__optimizemember_mo_page::wp_redirect_w_mop_vars("file", $req["file_download"], "level", $min_level_4_downloads, $_SERVER["REQUEST_URI"]) . exit;
} else {
/* Else return false. */
return false;
}
}
}
} else {
if (preg_match("/(?:^|\\/)access[_\\-]optimizemember[_\\-]level([0-9]+)\\//", $req["file_download"], $m) && strlen($req_level = $m[1]) && !$user->has_cap("access_optimizemember_level" . $req_level)) {
if ($serving) {
c_ws_plugin__optimizemember_mo_page::wp_redirect_w_mop_vars("file", $req["file_download"], "level", $req_level, $_SERVER["REQUEST_URI"]) . exit;
} else {
/* Else return false. */
return false;
}
} else {
if (preg_match("/(?:^|\\/)access[_\\-]optimizemember[_\\-]ccap[_\\-](.+?)\\//", $req["file_download"], $m) && strlen($req_ccap = preg_replace("/-/", "_", $m[1])) && !$user->has_cap("access_optimizemember_ccap_" . $req_ccap)) {
if ($serving) {
c_ws_plugin__optimizemember_mo_page::wp_redirect_w_mop_vars("file", $req["file_download"], "ccap", $req_ccap, $_SERVER["REQUEST_URI"]) . exit;
} else {
/* Else return false. */
return false;
}
} else {
if ($serving || $creating) {
$user_previous_file_downloads = 0;
$user_already_downloaded_this_file = $user_already_downloaded_a_streaming_variation_of_this_file = false;
/**/
$user_file_download_access_log = is_array($user_file_download_access_log = get_user_option("optimizemember_file_download_access_log", $user_id)) ? $user_file_download_access_log : array();
$user_file_download_access_arc = is_array($user_file_download_access_arc = get_user_option("optimizemember_file_download_access_arc", $user_id)) ? $user_file_download_access_arc : array();
/**/
$streaming_file_extns = c_ws_plugin__optimizemember_utils_strings::preg_quote_deep($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["streaming_file_extns"], "/");
$streaming_variations = "/\\.(" . implode("|", $streaming_file_extns) . ")\$/i";
/**/
foreach ($user_file_download_access_log as $user_file_download_access_log_entry_key => $user_file_download_access_log_entry) {
if (isset($user_file_download_access_log_entry["date"], $user_file_download_access_log_entry["file"])) {
if (strtotime($user_file_download_access_log_entry["date"]) < strtotime("-" . $user_file_downloads["allowed_days"] . " days")) {
unset($user_file_download_access_log[$user_file_download_access_log_entry_key]);
$user_file_download_access_arc[] = $user_file_download_access_log_entry;
} else {
if (strtotime($user_file_download_access_log_entry["date"]) >= strtotime("-" . $user_file_downloads["allowed_days"] . " days")) {
$user_previous_file_downloads++;
/* Previous files always count against this User/Member. */
/**/
$_user_file_download_access_log_entry =& $user_file_download_access_log[$user_file_download_access_log_entry_key];
$_user_already_downloaded_this_file = $_user_already_downloaded_a_streaming_variation_of_this_file = false;
/**/
if ($user_file_download_access_log_entry["file"] === $req["file_download"]) {
$user_already_downloaded_this_file = $_user_already_downloaded_this_file = true;
} else {
if (preg_replace($streaming_variations, "", $user_file_download_access_log_entry["file"]) === preg_replace($streaming_variations, "", $req["file_download"])) {
$user_already_downloaded_this_file = $_user_already_downloaded_this_file = $user_already_downloaded_a_streaming_variation_of_this_file = $_user_already_downloaded_a_streaming_variation_of_this_file = true;
}
}
/**/
if ($updating_user_counter && ($_user_already_downloaded_this_file || $_user_already_downloaded_a_streaming_variation_of_this_file)) {
$_user_file_download_access_log_entry["ltime"] = time();
/**/
if (!empty($user_file_download_access_log_entry["counter"])) {
$_user_file_download_access_log_entry["counter"] = (int) $user_file_download_access_log_entry["counter"] + 1;
} else {
/* Backward compatiility here. Default value to `1`, if this is NOT even set yet. */
$_user_file_download_access_log_entry["counter"] = 1 + 1;
}
}
}
}
} else {
/* Weed out empty log entries. Some older versions of optimizeMember may have corrupt/empty log entries. */
unset($user_file_download_access_log[$user_file_download_access_log_entry_key]);
}
/* Remove. */
}
if ($updating_user_counter && !$user_already_downloaded_this_file && !$user_already_downloaded_a_streaming_variation_of_this_file) {
$user_file_download_access_log[] = array("date" => date("Y-m-d"), "time" => time(), "ltime" => time(), "file" => $req["file_download"], "counter" => 1);
}
/**/
if ($user_previous_file_downloads >= $user_file_downloads["allowed"] && !$user_already_downloaded_this_file && !$user_already_downloaded_a_streaming_variation_of_this_file && !$user->has_cap("administrator")) {
if ($serving) {
wp_redirect(add_query_arg(urlencode_deep(array("_optimizemember_seeking" => array("type" => "file", "file" => $req["file_download"], "_uri" => base64_encode($_SERVER["REQUEST_URI"])), "optimizemember_seeking" => "file-" . $req["file_download"])), get_page_link($GLOBALS["WS_PLUGIN__"]["optimizemember"]["o"]["file_download_limit_exceeded_page"])), apply_filters("ws_plugin__optimizemember_content_redirect_status", 301, get_defined_vars())) . exit;
} else {
/* Else return false. */
return false;
}
} else {
if ($updating_user_counter) {
update_user_option($user_id, "optimizemember_file_download_access_log", c_ws_plugin__optimizemember_utils_arrays::array_unique($user_file_download_access_log)) . update_user_option($user_id, "optimizemember_file_download_access_arc", c_ws_plugin__optimizemember_utils_arrays::array_unique($user_file_download_access_arc));
}
}
}
}
}
}
}
}
}
}
} else {
if (!$using_amazon_storage && !file_exists($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["files_dir"] . "/" . $req["file_download"])) {
if ($serving) {
status_header(404) . header("Content-Type: text/html; charset=utf-8") . eval('while (@ob_end_clean ());') . exit(_x('<strong>404: Sorry, file not found.</strong> Please contact Support for assistance.', "s2member-front", "s2member"));
} else {
/* Else return false. */
return false;
}
}
}
/**/
if ($serving || $creating) {
$basename = basename($req["file_download"]);
$mimetypes = parse_ini_file(dirname(dirname(dirname(__FILE__))) . "/includes/mime-types.ini");
$extension = strtolower(substr($req["file_download"], strrpos($req["file_download"], ".") + 1));
/**/
$key = $req["file_download_key"] && is_string($req["file_download_key"]) ? $req["file_download_key"] : false;
/**/
$stream = isset($req["file_stream"]) ? filter_var($req["file_stream"], FILTER_VALIDATE_BOOLEAN) : (in_array($extension, preg_split("/[\r\n\t\\s;,]+/", $GLOBALS["WS_PLUGIN__"]["optimizemember"]["o"]["file_download_stream_extensions"])) ? true : false);
$inline = !$stream && isset($req["file_inline"]) ? filter_var($req["file_inline"], FILTER_VALIDATE_BOOLEAN) : ($stream || in_array($extension, preg_split("/[\r\n\t\\s;,]+/", $GLOBALS["WS_PLUGIN__"]["optimizemember"]["o"]["file_download_inline_extensions"])) ? true : false);
$ssl = isset($req["file_ssl"]) ? filter_var($req["file_ssl"], FILTER_VALIDATE_BOOLEAN) : (is_ssl() ? true : false);
$storage = $req["file_storage"] && is_string($req["file_storage"]) ? strtolower($req["file_storage"]) : false;
$remote = isset($req["file_remote"]) ? filter_var($req["file_remote"], FILTER_VALIDATE_BOOLEAN) : false;
/**/
$_basename_dir_app_data = c_ws_plugin__optimizemember_utils_dirs::basename_dir_app_data($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["files_dir"]);
$rewrite_base_guess = is_dir(dirname($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["dir"]) . "/" . $_basename_dir_app_data) ? dirname($GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["dir_url"]) . "/" . $_basename_dir_app_data : content_url("/" . $_basename_dir_app_data);
$rewrite_base = $req["file_rewrite_base"] && is_string($req["file_rewrite_base"]) ? $req["file_rewrite_base"] : false;
$rewrite = $rewriting = !$rewrite_base && isset($req["file_rewrite"]) ? filter_var($req["file_rewrite"], FILTER_VALIDATE_BOOLEAN) : ($rewrite_base ? true : false);
unset($_basename_dir_app_data);
/**/
$skip_confirmation = isset($req["skip_confirmation"]) ? filter_var($req["skip_confirmation"], FILTER_VALIDATE_BOOLEAN) : false;
$url_to_storage_source = isset($req["url_to_storage_source"]) ? filter_var($req["url_to_storage_source"], FILTER_VALIDATE_BOOLEAN) : false;
/**/
$pathinfo = !$using_amazon_storage ? pathinfo($file = $GLOBALS["WS_PLUGIN__"]["optimizemember"]["c"]["files_dir"] . "/" . $req["file_download"]) : array();
$mimetype = $mimetypes[$extension] ? $mimetypes[$extension] : "application/octet-stream";
$disposition = ($inline ? "inline" : "attachment") . "; filename=\"" . c_ws_plugin__optimizemember_utils_strings::esc_dq($basename) . "\"; filename*=UTF-8''" . rawurlencode($basename);
$length = !$using_amazon_storage && $file ? filesize($file) : -1;
/**/
eval('foreach(array_keys(get_defined_vars())as$__v)$__refs[$__v]=&$$__v;');
do_action("ws_plugin__optimizemember_during_file_download_access", get_defined_vars());
unset($__refs, $__v);
/* Unset defined __refs, __v. */
/**/
if ($using_amazon_storage && $using_amazon_cf_storage && ($serving || $creating && $url_to_storage_source)) {
if ($serving) {
wp_redirect(c_ws_plugin__optimizemember_files_in::amazon_cf_url($req["file_download"], $stream, $inline, $ssl, $basename, $mimetype)) . exit;
} else {
/* Else return File Download URL. */
return apply_filters("ws_plugin__optimizemember_file_download_access_url", c_ws_plugin__optimizemember_files_in::amazon_cf_url($req["file_download"], $stream, $inline, $ssl, $basename, $mimetype), get_defined_vars());
}
} else {
if ($using_amazon_storage && $using_amazon_s3_storage && ($serving || $creating && $url_to_storage_source)) {
if ($serving) {
wp_redirect(c_ws_plugin__optimizemember_files_in::amazon_s3_url($req["file_download"], $stream, $inline, $ssl, $basename, $mimetype)) . exit;
} else {
/* Else return File Download URL. */
return apply_filters("ws_plugin__optimizemember_file_download_access_url", c_ws_plugin__optimizemember_files_in::amazon_s3_url($req["file_download"], $stream, $inline, $ssl, $basename, $mimetype), get_defined_vars());
}
} else {
if ($creating && $rewriting) {
/* Note: we don't URL encode unreserved chars. Improves media player compatibility. */
$_url_e_key = $key ? c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($key)) : "";
$_url_e_storage = $storage ? c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($storage)) : "";
$_url_e_file = c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($req["file_download"]));
/**/
$url = $rewrite_base ? rtrim($rewrite_base, "/") : rtrim($rewrite_base_guess, "/");
$url .= isset($req["file_download_key"]) ? $key && $_url_e_key ? "/optimizemember-file-download-key-" . $_url_e_key : "" : "";
$url .= isset($req["file_stream"]) ? $stream ? "/optimizemember-file-stream" : "/optimizemember-file-stream-no" : "";
$url .= isset($req["file_inline"]) ? $inline ? "/optimizemember-file-inline" : "/optimizemember-file-inline-no" : "";
$url .= isset($req["file_storage"]) ? $storage && $_url_e_storage ? "/optimizemember-file-storage-" . $_url_e_storage : "" : "";
$url .= isset($req["file_remote"]) ? $remote ? "/optimizemember-file-remote" : "/optimizemember-file-remote-no" : "";
$url .= isset($req["skip_confirmation"]) ? $skip_confirmation ? "/s2member-skip-confirmation" : "/s2member-skip-confirmation-no" : "";
/**/
$url = $url . "/" . $_url_e_file;
$url = $ssl ? preg_replace("/^https?/", "https", $url) : preg_replace("/^https?/", "http", $url);
/**/
return apply_filters("ws_plugin__optimizemember_file_download_access_url", $url, get_defined_vars());
} else {
if ($creating) {
/* Note: we don't URL encode unreserved chars. Improves media player compatibility. */
$_url_e_key = $key ? c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($key)) : "";
$_url_e_storage = $storage ? c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($storage)) : "";
$_url_e_file = c_ws_plugin__optimizemember_utils_strings::urldecode_ur_chars_deep(urlencode($req["file_download"]));
/**/
$url = isset($req["file_download_key"]) ? $key && $_url_e_key ? "&optimizemember_file_download_key=" . $_url_e_key : "" : "";
$url .= isset($req["file_stream"]) ? $stream ? "&optimizemember_file_stream=yes" : "&optimizemember_file_stream=no" : "";
$url .= isset($req["file_inline"]) ? $inline ? "&optimizemember_file_inline=yes" : "&optimizemember_file_inline=no" : "";
$url .= isset($req["file_storage"]) ? $storage && $_url_e_storage ? "&optimizemember_file_storage=" . $_url_e_storage : "" : "";
$url .= isset($req["file_remote"]) ? $remote ? "&optimizemember_file_remote=yes" : "&optimizemember_file_remote=no" : "";
$url .= isset($req["skip_confirmation"]) ? $skip_confirmation ? "&optimizemember_skip_confirmation=yes" : "&optimizemember_skip_confirmation=no" : "";
/**/
$url = site_url("/?" . ltrim($url . "&optimizemember_file_download=/" . $_url_e_file, "&"));
$url = $ssl ? preg_replace("/^https?/", "https", $url) : preg_replace("/^https?/", "http", $url);
/**/
return apply_filters("ws_plugin__optimizemember_file_download_access_url", $url, get_defined_vars());
} else {
if ($serving) {
@set_time_limit(0);
/**/
@ini_set("zlib.output_compression", 0);
if (function_exists("apache_setenv")) {
@apache_setenv("no-gzip", "1");
}
while (@ob_end_clean()) {
}
/**/
if ($range) {
if (strpos($range, "=") === FALSE) {
status_header(416);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Length: " . $length);
header("Content-Disposition: " . $disposition);
exit;
}
list($range_type, $byte_range) = preg_split("/\\s*\\=\\s*/", $range, 2);
/**/
$range_type = strtolower(trim($range_type));
$byte_range = trim($byte_range);
/**/
if ($range_type !== "bytes") {
status_header(416);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Length: " . $length);
header("Content-Disposition: " . $disposition);
exit;
}
$byte_ranges = preg_split("/\\s*,\\s*/", $byte_range);
/**/
if (strpos($byte_ranges[0], "-") === FALSE) {
status_header(416);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Length: " . $length);
header("Content-Disposition: " . $disposition);
exit;
}
/* Only dealing with the first byte range. Others are simply ignored here. */
list($byte_range_start, $byte_range_stops) = preg_split("/\\s*\\-\\s*/", $byte_ranges[0], 2);
/**/
$byte_range_start = trim($byte_range_start);
$byte_range_stops = trim($byte_range_stops);
/**/
$byte_range_start = $byte_range_start === "" ? NULL : (int) $byte_range_start;
$byte_range_stops = $byte_range_stops === "" ? NULL : (int) $byte_range_stops;
/**/
if (!isset($byte_range_start) && $byte_range_stops > 0 && $byte_range_stops <= $length) {
$byte_range_start = $length - $byte_range_stops;
$byte_range_stops = $length - 1;
} else {
if (!isset($byte_range_stops) && $byte_range_start >= 0 && $byte_range_start < $length - 1) {
$byte_range_stops = $length - 1;
} else {
if (isset($byte_range_start, $byte_range_stops) && $byte_range_start >= 0 && $byte_range_start < $length - 1 && $byte_range_stops > $byte_range_start && $byte_range_stops <= $length - 1) {
/* Nothing to do in this case, starts/stops already defined properly. */
} else {
status_header(416);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Length: " . $length);
header("Content-Disposition: " . $disposition);
exit;
}
}
}
/* Range. */
status_header(206);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Range: bytes " . $byte_range_start . "-" . $byte_range_stops . "/" . $length);
$byte_range_size = $byte_range_stops - $byte_range_start + 1;
header("Content-Length: " . $byte_range_size);
header("Content-Disposition: " . $disposition);
} else {
status_header(200);
nocache_headers();
header("Content-Encoding:");
header("Accept-Ranges: bytes");
header("Content-Type: " . $mimetype);
header("Content-Length: " . $length);
header("Content-Disposition: " . $disposition);
}
if (is_resource($resource = fopen($file, "rb"))) {
if ($range) {
$_bytes_to_read = $byte_range_size;
fseek($resource, $byte_range_start);
} else {
/* Entire file. */
$_bytes_to_read = $length;
}
/**/
$chunk_size = apply_filters("ws_plugin__optimizemember_file_downloads_chunk_size", 2097152, get_defined_vars());
/**/
while ($_bytes_to_read) {
$_bytes_to_read -= $_reading = $_bytes_to_read > $chunk_size ? $chunk_size : $_bytes_to_read;
echo fread($resource, $_reading);
flush();
}
fclose($resource);
unset($_bytes_to_read, $_reading);
}
exit;
}
}
}
}
}
}
} else {
if ($serving && $req["file_download"]) {
status_header(503) . header("Content-Type: text/html; charset=utf-8") . eval('while (@ob_end_clean ());') . exit(_x('<strong>503: Access denied.</strong> Invalid File Download specs.', "s2member-front", "s2member"));
} else {
if ($creating) {
return false;
}
}
}
}
/**/
do_action("ws_plugin__optimizemember_after_file_download_access", get_defined_vars());
/**/
return $creating ? false : null;
}
