(PECL event >= 1.2.6-beta)
EventBufferEvent::sslFilter — Crea un nuevo evento búfer SSL búfer para enviar sus datos a otro evento búfer
$base
,$underlying
,$ctx
,$state
,$options
= 0
Crea un nuevo evento búfer SSL búfer para enviar sus datos a otro evento búfer
Nota:
Esta función está disponible solo si
Eventes compilado con suporte para OpenSSL.
base
Evento base asociado.
underlying
El socket evento búfer para usar en esta SSL.
ctx
Objecto de la clase EventSslContext.
state
El estado actual de la conexión SSL:
EventBufferEvent::SSL_OPEN
,
EventBufferEvent::SSL_ACCEPTING
o
EventBufferEvent::SSL_CONNECTING
.
options
Una o más opciones del evento búfer.
Devuelve un nuevo objecto SSL EventBufferEvent.
Ejemplo #1 Ejemplo de servidor SMTP
<?php
/*
* Autor: Andrew Rose <hello at andrewrose dot co dot uk>
*
* Uso:
* 1) Prepare el certificado cert.pem y la clave privada privkey.pem.
* 2) Inicie el script del servidor
* 3) Abra la conexión TLS, i.e. :
* $ openssl s_client -connect localhost:25 -starttls smtp -crlf
* 4) Comience a probar los comandos listados en el método `cmd` a continuación.
*/
class Handler {
public $domainName = FALSE;
public $connections = [];
public $buffers = [];
public $maxRead = 256000;
public function __construct() {
$this->ctx = new EventSslContext(EventSslContext::SSLv3_SERVER_METHOD, [
EventSslContext::OPT_LOCAL_CERT => 'cert.pem',
EventSslContext::OPT_LOCAL_PK => 'privkey.pem',
//EventSslContext::OPT_PASSPHRASE => '',
EventSslContext::OPT_VERIFY_PEER => false, // cambiar a TRUE con certificados auténticos
EventSslContext::OPT_ALLOW_SELF_SIGNED => true // cambiar a FALSE con certificados auténticos
]);
$this->base = new EventBase();
if (!$this->base) {
exit("Imposible abrir la base del evento\n");
}
if (!$this->listener = new EventListener($this->base,
[$this, 'ev_accept'],
$this->ctx,
EventListener::OPT_CLOSE_ON_FREE | EventListener::OPT_REUSEABLE,
-1,
'0.0.0.0:25'))
{
exit("Imposible crear el oyente\n");
}
$this->listener->setErrorCallback([$this, 'ev_error']);
$this->base->dispatch();
}
public function ev_accept($listener, $fd, $address, $ctx) {
static $id = 0;
$id += 1;
$this->connections[$id]['clientData'] = '';
$this->connections[$id]['cnx'] = new EventBufferEvent($this->base, $fd,
EventBufferEvent::OPT_CLOSE_ON_FREE);
if (!$this->connections[$id]['cnx']) {
echo "Fallo en la creación del buffer\n";
$this->base->exit(NULL);
exit(1);
}
$this->connections[$id]['cnx']->setCallbacks([$this, "ev_read"], NULL,
[$this, 'ev_error'], $id);
$this->connections[$id]['cnx']->enable(Event::READ | Event::WRITE);
$this->ev_write($id, '220 '.$this->domainName." wazzzap?\r\n");
}
function ev_error($listener, $ctx) {
$errno = EventUtil::getLastSocketErrno();
fprintf(STDERR, "Se recibe el error %d (%s) en el oyente. Detención.\n",
$errno, EventUtil::getLastSocketError());
if ($errno != 0) {
$this->base->exit(NULL);
exit();
}
}
public function ev_close($id) {
$this->connections[$id]['cnx']->disable(Event::READ | Event::WRITE);
unset($this->connections[$id]);
}
protected function ev_write($id, $string) {
echo 'S('.$id.'): '.$string;
$this->connections[$id]['cnx']->write($string);
}
public function ev_read($buffer, $id) {
while($buffer->input->length > 0) {
$this->connections[$id]['clientData'] .= $buffer->input->read($this->maxRead);
$clientDataLen = strlen($this->connections[$id]['clientData']);
if($this->connections[$id]['clientData'][$clientDataLen-1] == "\n"
&& $this->connections[$id]['clientData'][$clientDataLen-2] == "\r")
{
// Elimina los caracteres \r\n al final
$line = substr($this->connections[$id]['clientData'], 0,
strlen($this->connections[$id]['clientData']) - 2);
$this->connections[$id]['clientData'] = '';
$this->cmd($buffer, $id, $line);
}
}
}
protected function cmd($buffer, $id, $line) {
switch ($line) {
case strncmp('EHLO ', $line, 4):
$this->ev_write($id, "250-STARTTLS\r\n");
$this->ev_write($id, "250 OK ehlo\r\n");
break;
case strncmp('HELO ', $line, 4):
$this->ev_write($id, "250-STARTTLS\r\n");
$this->ev_write($id, "250 OK helo\r\n");
break;
case strncmp('QUIT', $line, 3):
$this->ev_write($id, "250 OK quit\r\n");
$this->ev_close($id);
break;
case strncmp('STARTTLS', $line, 3):
$this->ev_write($id, "220 Ready to start TLS\r\n");
$this->connections[$id]['cnx'] = EventBufferEvent::sslFilter($this->base,
$this->connections[$id]['cnx'], $this->ctx,
EventBufferEvent::SSL_ACCEPTING,
EventBufferEvent::OPT_CLOSE_ON_FREE);
$this->connections[$id]['cnx']->setCallbacks([$this, "ev_read"], NULL, [$this, 'ev_error'], $id);
$this->connections[$id]['cnx']->enable(Event::READ | Event::WRITE);
break;
default:
echo 'Comando desconocido : '.$line."\n";
break;
}
}
}
new Handler();