(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 Simple SMTP server
<?php
/*
* Author: Andrew Rose <hello at andrewrose dot co dot uk>
*
* Usage:
* 1) Prepare cert.pem certificate and privkey.pem private key files.
* 2) Launch the server script
* 3) Open TLS connection, e.g.:
* $ openssl s_client -connect localhost:25 -starttls smtp -crlf
* 4) Start testing the commands listed in `cmd` method below.
*/
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, // change to true with authentic cert
EventSslContext::OPT_ALLOW_SELF_SIGNED => true // change to false with authentic cert
]);
$this->base = new EventBase();
if (!$this->base) {
exit("Couldn't open event base\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("Couldn't create listener\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 "Failed creating 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, "Got an error %d (%s) on the listener. Shutting down.\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")
{
// remove the trailing \r\n
$line = substr($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 'unknown command: '.$line."\n";
break;
}
}
}
new Handler();