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<?php
namespace callnotifier;
class Source_Remote
{
protected $socket;
public function __construct($config, $handler)
{
$this->config = $config;
$this->handler = $handler;
}
public function run()
{
do {
try {
$tryAgain = false;
$this->connect($this->config->host, $this->config->port);
$this->init();
$this->loop();
} catch (Exception_ConnectionReset $e) {
$tryAgain = true;
//connection is refused directly after a connection reset
//hopefully waiting a bit will help
sleep(10);
}
} while ($tryAgain);
$this->disconnect();
}
public function connect($ip, $port)
{
if ($ip == '') {
throw new \Exception('No remote IP or hostname given.');
}
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if ($socket === false) {
throw new \Exception(
'socket_create() failed: reason: '
. socket_strerror(socket_last_error())
);
}
//echo "Attempting to connect to '$ip' on port '$port'...";
$result = socket_connect($socket, $ip, $port);
if ($result === false) {
throw new \Exception(
"socket_connect() failed. Reason: "
. socket_strerror(socket_last_error($socket))
);
}
$this->socket = $socket;
}
function init()
{
$msg = "\x00\x01DecoderV=1\n";
socket_write($this->socket, $msg, strlen($msg));
$res = $this->read_response();
socket_write($this->socket, "\x00\x02", 2);
}
function loop()
{
while (true) {
$dbgmsg = $this->read_response();
//echo $dbgmsg . "\n";
$this->handler->handle($dbgmsg);
}
}
function read_response()
{
$res = socket_read($this->socket, 2048, PHP_NORMAL_READ);
if ($res === false) {
//handle "Connection reset by peer" that appears nightly since
// version 4.0N
throw new Exception_ConnectionReset();
}
return substr($res, 2, -1);
}
function disconnect()
{
socket_write($this->socket, "\x00\x03", 2);
socket_close($this->socket);
}
}
?>
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