<?
	require $_SERVER['DOCUMENT_ROOT'].'/lib/global.php';

	require_once $_SERVER['DOCUMENT_ROOT']."/facebook/php-graph-sdk/src/Facebook/autoload.php";

	if(!session_id())
	{
		session_start();
	}


	$fb = new Facebook\Facebook([
		'app_id' => '576528099627663',
		'app_secret' => '6e172106be71f5b175149566e6a9fb44',
		'default_graph_version' => 'v2.11',
		'cookie' => true
	]);
	$helper = $fb->getRedirectLoginHelper();
	//$permissions = ['email'];	//optional

	try 
	{
		if (isset($_SESSION['facebook_access_token'])) 
		{
			$accessToken = $_SESSION['facebook_access_token'];
		} else {
			$accessToken = $helper->getAccessToken();
		}
	} catch(Facebook\Exceptions\FacebookResponseException $e)
	{ // When Graph returns an error
		echo 'Graph returned an error: ' . $e->getMessage();
		exit;
	} catch(Facebook\Exceptions\FacebookSDKException $e) { // When validation fails or other local issues 
		echo 'Facebook SDK returned an error: ' . $e->getMessage();
		exit;
	}


	if (isset($accessToken)) 
	{
		//var_dump($accessToken->getValue());
		//$oAuth2Client = $fb->getOAuth2Client();

		//$tokenMetadata = $oAuth2Client->debugToken($accessToken);

		//var_dump($tokenMetadata);

		//$tokenMetadata->validateAppId('576528099627663');
		//$tokenMetadata->validateExpiration();

		//var_dump($accessToken->getValue());
		//$array[] = $accessToken->getValue();
		//print_r($tokenMetadata->user_id);
		/*
		if(!$accessToken->isLongLived())
		{
			try {
				$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
			}catch (Facebook\Exceptions\FacebookSDKException $e){
				echo $helper->getMessage();
				exit;
			}
			//var_dump($accessToken->getValue());
			//print_r($accessToken->getValue());
			//$m_id = $accessToken->getValue();
		}
		*/



		if (isset($_SESSION['facebook_access_token'])) {
			$fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
		} else { // getting short-lived access token 
			$_SESSION['facebook_access_token'] = (string) $accessToken; // OAuth 2.0 client handler 
			$oAuth2Client = $fb->getOAuth2Client(); // Exchanges a short-lived access token for a long-lived one 
			$longLivedAccessToken = $oAuth2Client->getLongLivedAccessToken($_SESSION['facebook_access_token']);
			$_SESSION['facebook_access_token'] = (string) $longLivedAccessToken; // setting default access token to be used in script 
			$fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
		} // redirect the user back to the same page if it has "code" GET variable 

		if (isset($_GET['code'])) { 
			//header('Location: ./index.siso');
			$locationUrl = "index.siso";
		} // getting basic info about user 
		try {
			$profile_request = $fb->get('/me?fields=name,first_name,last_name,email');
			$profile = $profile_request->getGraphNode()->asArray();
		} catch(Facebook\Exceptions\FacebookResponseException $e) { // When Graph returns an error 
			echo 'Graph returned an error: ' . $e->getMessage(); session_destroy(); // redirecting user back to app login page 
			//header("Location: ./");
			exit;
		} catch(Facebook\Exceptions\FacebookSDKException $e) { // When validation fails or other local issues 
			echo 'Facebook SDK returned an error: ' . $e->getMessage();
			exit;
		} // printing $profile array on the screen which holds the basic info about user 
		//print_r($profile); // Now you can redirect to another page and use the access token from $_SESSION['facebook_access_token']


		$m_id = $profile["id"];
		$chkProfile = getValue("_MEMBER"," where m_id='".$m_id."' and m_logintype='facebook'","ar","*");
		if($chkProfile)
		{
			$MEMIDX = $chkProfile["m_idx"];
			if($chkProfile["m_level"]=="user")
			{
				$_SET_LEVEL = "1";
				$locationUrl = "index.siso";
			}else{
				$_SET_LEVEL = "0";
				$locationUrl = "reg_profile.siso?idx=".$MEMIDX;
			}

		}else{			//ППППП ППП ППП.

			$isql = "insert into _MEMBER set m_id='".$m_id."', m_pass='".$m_id."'";
			if($profile["email"])
			{
				$isql .= ", m_email='".$profile["email"]."'";
			}
			$isql .= ", regdate = now(), m_ip = '".$_SERVER["REMOTE_ADDR"]."', m_agent = '".$_SERVER["HTTP_USER_AGENT"]."', m_expire_date = '0000-00-00', m_expire_time	= '00:00:00', m_use = 'Y', m_level = 'user', m_lastlogindate = now(), m_logintype='facebook' ";
			$irs = query($isql);
			if($irs)
			{
				$MEMIDX = insert_id();
				$SET_LEVEL = "0";
				$locationUrl = "reg_profile.siso?idx=".$MEMIDX;
				if($profile["email"])
				{
					$maillink = "https://lifeadvisor.ncue.net/mailaccept.php?midx=".$MEMIDX."&memail=".$profile["email"];
					$mailcontents = "ПП ППП ППП ПППП ППППП ППП.<br/><a href='".$maillink."'>ПП ПП</a>";
					//1. ППП ПП ПП ПП
                                	//$sendMail     =       sendMail('yds5004@naver.com', 'ППП', 'ППП ППП ПП' ,$mailcontents, $m_id, "ППП ПППП", true);
				}
			}else{
				echo ("
					<script>
						alert('ПП ПП ПП ППП ППППППП. ');
						location.href='/login.siso';
					</script>
				");
				exit;
			}
		}
		//echo $locationUrl;
		//exit;
		//ППП ПППППППП ПППП ПП ППП ПППППП ППП.
		setSession('_IDX', $MEMIDX);
		setSession('_LEVEL', $_SET_LEVEL);
		setSession('ltype', "facebook");
		setCookie('_LEVEL', $_SET_LEVEL, time()+2678400, '/', '.'._HOST);
		setCookie('_PW_NPLACE_SAVE',$m_id, time()+2678400,'/', _HOST);
		echo ("
			<script>
				location.href='".$locationUrl."';
			</script>
		");
		exit;
	} else {
		// replace your website URL same as added in the developers.facebook.com/apps e.g. if you used http instead of https and you used non-www version or www version of your website then you must add the same here

		//$loginUrl = $helper->getLoginUrl('http://localhost/fb_oauth.php', $permissions);

		//echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';

		if($helper->getError()){
			header('HTTP/1.0 401 Unauthorized');
			echo "Error : ".$helper->getError()."\n";
			echo "Error Code: ".$helper->getErrorCode()."\n";
			echo "Error Reason: ".$helper->getErrorReason()."\n";
			echo "Error Description: ".$helper->getErrorDescription()."\n";
		}else{
			header('HTTP/1.0 400 Bad Request');
			echo "Bad request";
		}
		exit;
	}






	

	
	
	/*
	if(!isset($accessToken))
	{
		if($helper->getError()){
			header('HTTP/1.0 401 Unauthorized');
			echo "Error : ".$helper->getError()."\n";
			echo "Error Code: ".$helper->getErrorCode()."\n";
			echo "Error Reason: ".$helper->getErrorReason()."\n";
			echo "Error Description: ".$helper->getErrorDescription()."\n";
		}else{
			header('HTTP/1.0 400 Bad Request');
			echo "Bad request";
		}
		exit;
	} else {
		//var_dump($accessToken->getValue());

		$oAuth2Client = $fb->getOAuth2Client();

		$tokenMetadata = $oAuth2Client->debugToken($accessToken);

		//var_dump($tokenMetadata);

		$tokenMetadata->validateAppId('576528099627663');
		$tokenMetadata->validateExpiration();

		//var_dump($accessToken->getValue());
		//$array[] = $accessToken->getValue();
		print_r($tokenMetadata->user_id);
		if(!$accessToken->isLongLived())
		{
			try {
				$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
			}catch (Facebook\Exceptions\FacebookSDKException $e){
				echo $helper->getMessage();
				exit;
			}
			//var_dump($accessToken->getValue());
			//print_r($accessToken->getValue());
			//$m_id = $accessToken->getValue();
		}
	}
	*/
?>