<?php

	header( "Content-Type: text/html" );

	$key       = "(aipo.conf のAuthMemHmac_Keyと同じ値)";
	$loginTime = time();
	$ip        = getip();

	// HMAC生成
	$hmac = hash_hmac('sha1', $loginTime . $ip, base64_decode($key));

	// クッキー発行
	$cookie = $loginTime . chr(9) . $ip . chr(9) . $hmac;
	setcookie('aipo_access_token', $cookie, 0, '/aipo', '(ドメイン名)', true);

	// memcached への書込み
	$userName    ="user";
	$expiry      = 180;  // （秒) aipo.conf のAuthMemHmac_Timeoutと一致させる

	$memcache = new Memcache;

	// memcachedサーバへ接続
	$memcache->connect('localhost', 11211) or die ("Could not connect");

	// セッションキー生成
	$key=md5(uniqid(rand(), true).$ip.time());

	// セッションキーのデータ生成
	$value="UserName=".$userName."\r\n";
	$value.="RemoteIP=".$ip."\r\n";

	// store value for the key in memcache deamon
	$memcache->set($key,$value,false,$expiry);

	// set cookie session
	setcookie("AuthSessionKey",$key,0,"/aipo","(ドメイン名)",true);

	header("location: https://(ドメイン名)/aipo/");

	exit;

function validip($ip) 
{
	if (!empty($ip) && ip2long($ip)!=-1)
	 {
	$reserved_ips = array (
array('0.0.0.0','2.255.255.255'),
array('10.0.0.0','10.255.255.255'),
array('127.0.0.0','127.255.255.255'),
array('169.254.0.0','169.254.255.255'),
array('172.16.0.0','172.31.255.255'),
array('192.0.2.0','192.0.2.255'),
array('192.168.0.0','192.168.255.255'),
array('255.255.255.0','255.255.255.255')
);
 
		foreach ($reserved_ips as $r)
		{
			$min = ip2long($r[0]);
			$max = ip2long($r[1]);
			if ((ip2long($ip) >= $min) && (ip2long($ip) <= $max)) 
				return false;
		}
	 
		return true;
 
	}

	return false;
	
}
 
function getip()
{
	if (validip($_SERVER["HTTP_CLIENT_IP"]))
 	{
 	return $_SERVER["HTTP_CLIENT_IP"];
 	}

	if (validip($_SERVER["HTTP_FORWARDED_FOR"])) 
	{
 		return $_SERVER["HTTP_FORWARDED_FOR"];
	} 
	elseif (validip($_SERVER["HTTP_FORWARDED"]))
	{
		return $_SERVER["HTTP_FORWARDED"];
	}

	return $_SERVER["REMOTE_ADDR"];
}

?>