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<?php
if (!defined('ABSPATH')) exit;
if (!class_exists('BVCallbackRequest')) :
class BVCallbackRequest {
public $params;
public $method;
public $wing;
public $is_afterload;
public $is_admin_ajax;
public $is_debug;
public $account;
public $calculated_mac;
public $sig;
public $time;
public $version;
public $is_sha1;
public $bvb64stream;
public $bvb64cksize;
public $checksum;
public function __construct($account, $in_params) {
$this->params = array();
$this->account = $account;
$this->wing = $in_params['wing'];
$this->method = $in_params['bvMethod'];
$this->is_afterload = array_key_exists('afterload', $in_params);
$this->is_admin_ajax = array_key_exists('adajx', $in_params);
$this->is_debug = array_key_exists('bvdbg', $in_params);
$this->sig = $in_params['sig'];
$this->time = intval($in_params['bvTime']);
$this->version = $in_params['bvVersion'];
$this->is_sha1 = array_key_exists('sha1', $in_params);
$this->bvb64stream = isset($in_params['bvb64stream']);
$this->bvb64cksize = array_key_exists('bvb64cksize', $in_params) ? intval($in_params['bvb64cksize']) : false;
$this->checksum = array_key_exists('checksum', $in_params) ? $in_params['checksum'] : false;
}
public function isAPICall() {
return array_key_exists('apicall', $this->params);
}
public function info() {
$info = array(
"requestedsig" => $this->sig,
"requestedtime" => $this->time,
"requestedversion" => $this->version
);
if ($this->is_debug) {
$info["inreq"] = $this->params;
}
if ($this->is_admin_ajax) {
$info["adajx"] = true;
}
if ($this->is_afterload) {
$info["afterload"] = true;
}
if ($this->calculated_mac) {
$info["calculated_mac"] = $this->calculated_mac;
}
return $info;
}
public function processParams($in_params) {
$params = array();
if (array_key_exists('obend', $in_params) && function_exists('ob_end_clean'))
@ob_end_clean();
if (array_key_exists('op_reset', $in_params) && function_exists('output_reset_rewrite_vars'))
@output_reset_rewrite_vars();
if (array_key_exists('binhead', $in_params)) {
header("Content-type: application/binary");
header('Content-Transfer-Encoding: binary');
}
if (array_key_exists('concat', $in_params)) {
foreach ($in_params['concat'] as $key) {
$concated = '';
$count = intval($in_params[$key]);
for ($i = 1; $i <= $count; $i++) {
$concated .= $in_params[$key."_bv_".$i];
}
$in_params[$key] = $concated;
}
}
if (array_key_exists('bvprms', $in_params) && isset($in_params['bvprms']) &&
array_key_exists('bvprmsmac', $in_params) && isset($in_params['bvprmsmac'])) {
$digest_algo = 'SHA1';
$sent_mac = MCAccount::sanitizeKey($in_params['bvprmsmac']);
if (array_key_exists('bvprmshshalgo', $in_params) && isset($in_params['bvprmshshalgo'])) {
$digest_algo = $in_params['bvprmshshalgo'];
}
$calculated_mac = hash_hmac($digest_algo, $in_params['bvprms'], $this->account->secret);
$this->calculated_mac = substr($calculated_mac, 0, 6);
if ($this->compare_mac($sent_mac, $calculated_mac) === true) {
if (array_key_exists('b64', $in_params)) {
foreach ($in_params['b64'] as $key) {
if (is_array($in_params[$key])) {
$in_params[$key] = array_map('base64_decode', $in_params[$key]);
} else {
$in_params[$key] = base64_decode($in_params[$key]);
}
}
}
if (array_key_exists('unser', $in_params)) {
foreach ($in_params['unser'] as $key) {
$in_params[$key] = json_decode($in_params[$key], TRUE);
}
}
if (array_key_exists('sersafe', $in_params)) {
$key = $in_params['sersafe'];
$in_params[$key] = BVCallbackRequest::serialization_safe_decode($in_params[$key]);
}
if (array_key_exists('bvprms', $in_params) && isset($in_params['bvprms'])) {
$params = $in_params['bvprms'];
}
if (array_key_exists('clacts', $in_params)) {
foreach ($in_params['clacts'] as $action) {
remove_all_actions($action);
}
}
if (array_key_exists('clallacts', $in_params)) {
global $wp_filter;
foreach ( $wp_filter as $filter => $val ){
remove_all_actions($filter);
}
}
if (array_key_exists('memset', $in_params)) {
$val = intval(urldecode($in_params['memset']));
@ini_set('memory_limit', $val.'M');
}
return $params;
}
}
return false;
}
private function compare_mac($l_hash, $r_hash) {
if (!is_string($l_hash) || !is_string($r_hash)) {
return false;
}
if (strlen($l_hash) !== strlen($r_hash)) {
return false;
}
if (function_exists('hash_equals')) {
return hash_equals($l_hash, $r_hash);
} else {
return $l_hash === $r_hash;
}
}
public static function serialization_safe_decode($data) {
if (is_array($data)) {
$data = array_map(array('BVCallbackRequest', 'serialization_safe_decode'), $data);
} elseif (is_string($data)) {
$data = base64_decode($data);
}
return $data;
}
}
endif;
|