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<?php
namespace Core;
/**
* Request class
*
* @package core
* @author Frederic Guillot
*/
class Request
{
/**
* Get URL string parameter
*
* @access public
* @param string $name Parameter name
* @param string $default_value Default value
* @return string
*/
public function getStringParam($name, $default_value = '')
{
return isset($_GET[$name]) ? $_GET[$name] : $default_value;
}
/**
* Get URL integer parameter
*
* @access public
* @param string $name Parameter name
* @param integer $default_value Default value
* @return integer
*/
public function getIntegerParam($name, $default_value = 0)
{
return isset($_GET[$name]) && ctype_digit($_GET[$name]) ? (int) $_GET[$name] : $default_value;
}
/**
* Get a form value
*
* @access public
* @param string $name Form field name
* @return string|null
*/
public function getValue($name)
{
$values = $this->getValues();
return isset($values[$name]) ? $values[$name] : null;
}
/**
* Get form values and check for CSRF token
*
* @access public
* @return array
*/
public function getValues()
{
if (! empty($_POST) && Security::validateCSRFFormToken($_POST)) {
return $_POST;
}
return array();
}
/**
* Get the raw body of the HTTP request
*
* @access public
* @return string
*/
public function getBody()
{
return file_get_contents('php://input');
}
/**
* Get the Json request body
*
* @access public
* @return array
*/
public function getJson()
{
return json_decode($this->getBody(), true) ?: array();
}
/**
* Get the content of an uploaded file
*
* @access public
* @param string $name Form file name
* @return string
*/
public function getFileContent($name)
{
if (isset($_FILES[$name])) {
return file_get_contents($_FILES[$name]['tmp_name']);
}
return '';
}
/**
* Return true if the HTTP request is sent with the POST method
*
* @access public
* @return bool
*/
public function isPost()
{
return isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'POST';
}
/**
* Return true if the HTTP request is an Ajax request
*
* @access public
* @return bool
*/
public function isAjax()
{
return $this->getHeader('X-Requested-With') === 'XMLHttpRequest';
}
/**
* Check if the page is requested through HTTPS
*
* Note: IIS return the value 'off' and other web servers an empty value when it's not HTTPS
*
* @static
* @access public
* @return boolean
*/
public static function isHTTPS()
{
return isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== '' && $_SERVER['HTTPS'] !== 'off';
}
/**
* Return a HTTP header value
*
* @access public
* @param string $name Header name
* @return string
*/
public function getHeader($name)
{
$name = 'HTTP_'.str_replace('-', '_', strtoupper($name));
return isset($_SERVER[$name]) ? $_SERVER[$name] : '';
}
/**
* Returns current request's query string, useful for redirecting
*
* @access public
* @return string
*/
public function getQueryString()
{
return isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : '';
}
/**
* Returns uri
*
* @access public
* @return string
*/
public function getUri()
{
return isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
}
/**
* Get the user agent
*
* @static
* @access public
* @return string
*/
public static function getUserAgent()
{
return empty($_SERVER['HTTP_USER_AGENT']) ? t('Unknown') : $_SERVER['HTTP_USER_AGENT'];
}
/**
* Get the real IP address of the user
*
* @static
* @access public
* @param bool $only_public Return only public IP address
* @return string
*/
public static function getIpAddress($only_public = false)
{
$keys = array(
'HTTP_CLIENT_IP',
'HTTP_X_FORWARDED_FOR',
'HTTP_X_FORWARDED',
'HTTP_X_CLUSTER_CLIENT_IP',
'HTTP_FORWARDED_FOR',
'HTTP_FORWARDED',
'REMOTE_ADDR'
);
foreach ($keys as $key) {
if (isset($_SERVER[$key])) {
foreach (explode(',', $_SERVER[$key]) as $ip_address) {
$ip_address = trim($ip_address);
if ($only_public) {
// Return only public IP address
if (filter_var($ip_address, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) !== false) {
return $ip_address;
}
}
else {
return $ip_address;
}
}
}
}
return t('Unknown');
}
}
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