/**
* @expectedException \Exception
* @expectedExceptionMessage Unable to create from distributions: NonExistant, AnotherOne
*/
public function testFromDistributionsNoMatch()
{
$expected = new \Datasift\IfconfigParser\Parser\Ubuntu();
$actual = \Datasift\IfconfigParser::fromDistributions(array("NonExistant", "AnotherOne"));
$this->assertEquals($expected, $actual);
}
protected function getHostIpAddress()
{
// step 1 - how many adapters do we have on this box?
// @todo Maybe we want to move this somewhere more central later?
try {
$os = Os::getOs();
} catch (Exception $e) {
return "127.0.0.1";
}
$parser = IfconfigParser::fromDistributions($os->getPossibleClassNames());
$netifaces = new netifaces($os, $parser);
$adapters = $netifaces->listAdapters();
if (empty($adapters)) {
throw new Exception("unable to parse host machine network adapters list");
}
// step 2 - find an adapter that is most likely to have the IP address
// that we want
//
// our algorithm is simple:
//
// * we return the first non-loopback adapter that has an IP address
// * if that fails, we return the first loopback adapter that has
// an IP address
//
// and if that fails, we give up
try {
// special case - when loopback is our only adapter
$loopback = null;
// loop over the adapters
foreach ($adapters as $adapterToTest) {
// does the adapter have an IP address?
try {
$ipAddress = $netifaces->getIpAddress($adapterToTest);
} catch (NetifacesException $e) {
// We couldn't get an IP address
$ipAddress = null;
}
// did we get back a valid IP address?
$parts = explode('.', $ipAddress);
if (count($parts) == 4) {
// success!
//
// but wait - is it actually the loopback interface?
if (in_array($adapterToTest, ['lo0', 'lo']) && $loopback === null) {
$loopback = $ipAddress;
} else {
return $ipAddress;
}
}
}
// we didn't find any adapters with an IP address
//
// but is the loopback up and running?
if ($loopback !== null) {
// this is better than throwing an error
return $loopback;
}
// if we get here, we could not determine the IP address of our
// host :(
//
// this sucks
throw new NetifacesException("Unable to determine IP address");
} catch (NetifacesException $e) {
throw new Exception("could not determine IP address of host machine");
}
}
