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NetworkHandler.php
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NetworkHandler.php
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<?php
class NetworkHandler
{
function __construct()
{
}
function checkInternet($site = _NET_DEFAULT_SITE)
{
if ($this->ping($site))
{
return true;
}
else
{
// site is down, try 3 more times
for($i = 0; $i < 2; $i++)
{
if ($this->ping($this->getRandomSite(), 3))
{
return true;
}
}
}
return false;
}
function getStatusText()
{
$message = "Internet Status\n";
if($this->routerIsUp())
{
$message .= "Router: Up\n";
if ($this->checkInternet())
{
$message .= "Internet: Up\n";
}
else
{
$message .= "Internet: Down\n";
}
}
else
{
$message .= "Router: Down\n";
}
return $message;
}
function getRandomSite()
{
$sites = array('vg.no', 'db.no', 'microsoft.com', 'apple.com', 'stackoverflow.com', 'php.net', 'facebook.com', 'yahoo.com', 'google.com', 'digg.com', 'digi.no');
return $sites[mt_rand(0,count($sites)-1)];
}
function routerIsUp()
{
return $this->ping(_NET_ROUTER, 5);
}
function restartRouter()
{
$sshConnection = ssh2_connect(_NET_ROUTER, _NET_ROUTER_SSH_PORT);
if (ssh2_auth_pubkey_file($sshConnection, _NET_ROUTER_USERNAME, _NET_ROUTER_PUBLIC_KEY_PATH, _NET_ROUTER_PRIVATE_KEY_PATH, null))
{
ssh2_exec($sshConnection, 'reboot');
$sshConnection = null;
return 'Reboot command sent to router.';
}
else
{
return 'Connection to router rejected.';
}
}
function ping($address, $timeout = 1)
{
if (!is_numeric($timeout) || $timeout < 1 || $timeout > 10)
return false;
// address, port, error code, error string, timeout in sec
$status = @fsockopen($address,80,$errCode,$errStr,$timeout);
if(!$status)
{
return false;
}
else
{
fclose($status);
return true;
}
}
}