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<?php class vRequest { public static function getUword($field, $default='', $custom=''){ $source = self::getVar($field,$default); return self::filterUword($source,$custom); } //static $filters = array( '' =>); public static function uword($field, $default='', $custom=''){ $source = self::getVar($field,$default); return self::filterUword($source,$custom); } public static function filterUword($source, $custom,$replace=''){ if(function_exists('mb_ereg_replace')){ //$source is string that will be filtered, $custom is string that contains custom characters return mb_ereg_replace('[^\w'.preg_quote($custom).']', $replace, $source); } else { return preg_replace("~[^\w".preg_quote($custom,'~')."]~", $replace, $source); //We use Tilde as separator, and give the preq_quote function the used separator } } public static function getBool($name, $default = 0){ $tmp = self::get($name, $default, FILTER_SANITIZE_NUMBER_INT); if($tmp){ $tmp = true; } else { $tmp = false; } return $tmp; } public static function getInt($name, $default = 0){ return self::get($name, $default, FILTER_SANITIZE_NUMBER_INT); } public static function getFloat($name,$default=0.0){ return self::get($name,$default,FILTER_SANITIZE_NUMBER_FLOAT,FILTER_FLAG_ALLOW_SCIENTIFIC|FILTER_FLAG_ALLOW_FRACTION); } /** * - Strips all characters that has a numerical value <32. * - Strips all html. * * @param $name * @param null $default * @return mixed|null */ public static function getVar($name, $default = null){ return self::get($name, $default, FILTER_SANITIZE_STRING,FILTER_FLAG_STRIP_LOW ); } /** * - Strips all characters that has a numerical value <32. * - encodes html * * @param $name * @param string $default * @return mixed|null */ public static function getString($name, $default = ''){ return self::get($name, $default, FILTER_SANITIZE_SPECIAL_CHARS,FILTER_FLAG_STRIP_LOW); } public static function getHtml($name, $default = ''){ $tmp = self::get($name, $default); return JComponentHelper::filterText($tmp); } /** * Gets a filtered request value * - Strips all characters that has a numerical value <32 and >127. * - strips html * @author Max Milbers * @param $name * @param string $default * @return mixed|null */ public static function getCmd($name, $default = ''){ return self::get($name, $default, FILTER_SANITIZE_STRING,FILTER_FLAG_STRIP_LOW|FILTER_FLAG_STRIP_HIGH); } /** * Main filter function, called by the others with set Parameters * The standard filter is non restrictiv. * * @author Max Milbers * @param $name * @param null $default * @param int $filter * @param int $flags * @return mixed|null */ public static function get($name, $default = null, $filter = FILTER_UNSAFE_RAW, $flags = FILTER_FLAG_STRIP_LOW){ //vmSetStartTime(); if(!empty($name)){ if(!isset($_REQUEST[$name])) return $default; //if(strpos($name,'[]'!==FALSE)){ if(is_array($_REQUEST[$name])){ return filter_var_array($_REQUEST[$name], $filter ); } else { return filter_var($_REQUEST[$name], $filter, $flags); } } else { vmTrace('empty name in vRequest::get'); return $default; } } /** * Gets the request and filters it directly. It uses the standard php function filter_var_array, * The standard filter allows all chars, also the special ones. But removes dangerous html tags. * * @author Max Milbers * @param array $filter * @return mixed cleaned $_REQUEST */ public static function getRequest( ){ return filter_var_array($_REQUEST, FILTER_SANITIZE_STRING); } public static function getPost( ){ return filter_var_array($_POST, FILTER_SANITIZE_STRING); } public static function getGet( ){ return filter_var_array($_GET, FILTER_SANITIZE_STRING); } public static function getFiles($name){ return filter_var_array($_FILES[$name], FILTER_SANITIZE_STRING); } public static function setVar($name, $value = null){ if(isset($_REQUEST[$name])){ $tmp = $_REQUEST[$name]; $_REQUEST[$name] = $value; return $tmp; } else { $_REQUEST[$name] = $value; return null; } } /** * Checks for a form token in the request. * * @return boolean True if token valid * */ public static function vmCheckToken($redirectMsg=0){ $token = self::getFormToken(); if (!self::uword($token, false)){ if ($rToken = self::uword('token', false)){ if($rToken == $token){ return true; } } $session = JFactory::getSession(); if ($session->isNew()){ // Redirect to login screen. $app = JFactory::getApplication(); $app->redirect(JRoute::_('index.php'), vmText::_('JLIB_ENVIRONMENT_SESSION_EXPIRED')); $app->close(); } else { if($redirectMsg===0){ $redirectMsg = 'Invalid Token, in ' . vRequest::getCmd('options') .' view='.vRequest::getCmd('view'). ' task='.vRequest::getCmd('task'); //jexit('Invalid Token, in ' . vRequest::getCmd('options') .' view='.vRequest::getCmd('view'). ' task='.vRequest::getCmd('task')); } else { $redirectMsg = vmText::_($redirectMsg); } // Redirect to login screen. $app = JFactory::getApplication(); $session->close(); $app->redirect(JRoute::_('index.php'), $redirectMsg); $app->close(); return false; } } else { return false; } } public static function getFormToken($fNew = false){ $user = JFactory::getUser(); $session = JFactory::getSession(); if(empty($user->id)) $user->id = 0; $hash = JApplication::getHash($user->id . $session->getToken($fNew)); return $hash; } }