TrustProxy.php
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TrustProxy.php
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	<?php namespace AuthGrove\Http\Middleware;

	use Illuminate\Http\Request;

	use AuthGrove\Enums\TrustProxyConfigurationMode;

	use Config;
	use Closure;

	/**
	* Allow the application to work behind a load balancer or a reverse proxy
	*
	* See http://symfony.com/doc/current/cookbook/request/load_balancer_reverse_proxy.html
	*/
	class TrustProxy {
	/**
	* Handle an incoming request.
	*
	* @param \Illuminate\Http\Request $request
	* @param \Closure $next
	* @return mixed
	*/
	public function handle(Request $request, Closure $next)
	{
	$proxy = Config::get('app.proxy');

	switch ($mode = self::getConfigurationMode($proxy)) {
	case TrustProxyConfigurationMode::TRUST_NONE:
	break;

	case TrustProxyConfigurationMode::TRUST_SOME:
	$request->setTrustedProxies($proxy);
	break;

	case TrustProxyConfigurationMode::TRUST_ALL:
	$remoteAddr = $request->server->get('REMOTE_ADDR');
	$request->setTrustedProxies([ '127.0.0.1', $remoteAddr ]);
	break;

	default:
	throw new \ArgumentException("Unhandled configuration mode: $mode");
	}

	return $next($request);
	}

	/**
	* Gets trust proxies configuration mode
	*/
	public static function getConfigurationMode ($configValue) {
	if (!is_array($configValue) \|\| !count($configValue)) {
	return TrustProxyConfigurationMode::TRUST_NONE;
	}

	if (in_array('*', $configValue)) {
	return TrustProxyConfigurationMode::TRUST_ALL;
	}

	return TrustProxyConfigurationMode::TRUST_SOME;
	}
	}