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<?php |
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namespace PHPTools\PHPClientAddr; |
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/** |
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* Clas eque permite obtener la Ip y HostName del cliente |
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*/ |
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class PHPClientAddr |
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{ |
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/** |
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* Arreglod e expreciones regulres para validar una IP privada. |
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* @var array |
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*/ |
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private $privateIp = array( |
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'/^0\./','/^127\.0\.0\.1/', |
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'/^192\.168\..*/','/^172\.((1[6-9])|(2[0-9])|(3[0-1]))\..*/', |
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'/^10\..*/' |
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); |
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/** |
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* Ip del cliente. |
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* @var string |
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*/ |
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public $ip; |
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/** |
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* Hostname del Cliente. |
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* @var string |
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*/ |
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public $hostname; |
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/** |
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* Arreglo de parametros del servidor. |
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* @var array |
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*/ |
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private $server; |
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/** |
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* Arreglo de parametros del entorno. |
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* @var array |
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*/ |
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private $env; |
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/** |
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* Thr constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->server = $_SERVER; |
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$this->env = $_ENV; |
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$this->ip = $this->getRemodeAddr(); |
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$this->getIpForwarded(); |
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$this->hostname = $this->getRemoteHostname(); |
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} |
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/** |
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* Permite obtener el hostname de la IP |
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* @return string |
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*/ |
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private function getRemoteHostname() |
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{ |
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$hostname = NULL; |
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if(!is_null($this->ip)) { |
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$hostname = gethostbyaddr($this->ip); |
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} |
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return $hostname; |
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} |
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/** |
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* Permite obtener la IP proveniente de un servidor proxy |
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* @return void |
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*/ |
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private function getIpForwarded() |
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{ |
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if(!!$this->isHttpXForwardedFor()) { |
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$entries = $this->getHttpXForwardedForEntities(); |
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$this->ip = $this->getXForwardedIp($entries); |
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} |
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} |
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/** |
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* Permite saber si la peticion proviene de un servidor proxy. |
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* @return boolean |
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*/ |
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private function isHttpXForwardedFor() |
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{ |
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return !!isset($this->server['HTTP_X_FORWARDED_FOR'])&&$this->server['HTTP_X_FORWARDED_FOR']!=''; |
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} |
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/** |
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* Permite obtener todas las entidades enviadas por un servidor proxy. |
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* @return array |
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*/ |
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private function getHttpXForwardedForEntities() |
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{ |
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$entries = preg_split('[, ]', $this->server['HTTP_X_FORWARDED_FOR']); |
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reset($entries); |
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return $entries; |
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} |
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/** |
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* Permite obtener la IP real proveniente de un servidor proxy. |
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* @param array $entries Arreglo de entidades enviadas por un servidor proxy |
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* @return string |
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*/ |
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private function getXForwardedIp($entries) |
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{ |
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$ip = $this->ip; |
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while (list(, $entry) = each($entries)) { |
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$entry = trim($entry); |
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if ( preg_match("/^([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)/", $entry, $ip_list)) { |
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$found_ip = preg_replace( $this->privateIp, $ip, $ip_list[1]); |
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if ($ip != $found_ip) { |
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$ip = $found_ip; |
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break; |
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} |
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} |
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} |
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return $ip; |
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} |
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/** |
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* Permite obtener la IP real del cliente. |
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* @return string |
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*/ |
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private function getRemodeAddr() |
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{ |
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$ip = NULL; |
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if(PHP_SAPI=='cli') { |
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$ip = gethostbyname(gethostname()); |
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} elseif($this->hasServerRemoteAddr()) { |
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$ip = $this->server['REMOTE_ADDR']; |
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} elseif($this->hasEnvRemoteAddr()) { |
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$ip = $this->env['REMOTE_ADDR']; |
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} |
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return $ip; |
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} |
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/** |
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* Check if the remote Ip is in the glocal variable $_SERVER |
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* @return boolean |
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*/ |
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private function hasServerRemoteAddr() |
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{ |
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return !!isset($this->server['REMOTE_ADDR']) |
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&&!empty($this->server['REMOTE_ADDR']) |
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; |
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} |
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/** |
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* Check if the remote Ip is in the glocal variable $_ENV |
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* @return boolean |
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*/ |
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private function hasEnvRemoteAddr() |
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{ |
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return !!isset($this->env['REMOTE_ADDR']) |
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&&!empty($this->env['REMOTE_ADDR']) |
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; |
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} |
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161
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} |
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162
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ElMijo /
php-cliente-addr
