PHP 5.5.16 is released

EventBufferEvent::sslFilter

(PECL event >= 1.2.6-beta)

EventBufferEvent::sslFilterCreate a new SSL buffer event to send its data over another buffer event

Descrição

public static EventBufferEvent EventBufferEvent::sslFilter ( EventBase $base , EventBufferEvent $underlying , EventSslContext $ctx , int $state [, int $options = 0 ] )

Create a new SSL buffer event to send its data over another buffer event

Nota:

This function is available only if Event is compiled with OpenSSL support.

Parâmetros

base

Associated event base.

underlying

A socket buffer event to use for this SSL.

ctx

Object of EventSslContext class.

state

The current state of SSL connection: EventBufferEvent::SSL_OPEN , EventBufferEvent::SSL_ACCEPTING or EventBufferEvent::SSL_CONNECTING .

options

One or more buffer event options.

Valor Retornado

Returns a new SSL EventBufferEvent object.

Exemplos

Exemplo #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",
            
$errnoEventUtil::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 (
$line) {
            case 
strncmp('EHLO '$line4):
                
$this->ev_write($id"250-STARTTLS\r\n");
                
$this->ev_write($id"250 OK ehlo\r\n");
                break;

            case 
strncmp('HELO '$line4):
                
$this->ev_write($id"250-STARTTLS\r\n");
                
$this->ev_write($id"250 OK helo\r\n");
                break;

            case 
strncmp('QUIT'$line3):
                
$this->ev_write($id"250 OK quit\r\n");
                
$this->ev_close($id);
                break;

            case 
strncmp('STARTTLS'$line3):
                
$this->ev_write($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();

Veja Também

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top