Added "[labs] imap_show_login_alert" setting

Small fixes

rainloop/v/0.0.0/app/libraries/RainLoop/Providers/TwoFactorAuth.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace RainLoop\Providers;
+
+class TwoFactorAuth extends \RainLoop\Providers\AbstractProvider
+{
+	/**
+	 * @var \RainLoop\Providers\TwoFactorAuth\TwoFactorAuthInterface
+	 */
+	private $oDriver;
+
+	/**
+	 * @param \RainLoop\Providers\TwoFactorAuth\TwoFactorAuthInterface|null $oDriver = null
+	 *
+	 * @return void
+	 */
+	public function __construct($oDriver = null)
+	{
+		$this->oDriver = $oDriver;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function IsActive()
+	{
+		return $this->oDriver instanceof \RainLoop\Providers\TwoFactorAuth\TwoFactorAuthInterface;
+	}
+
+	/**
+	 * @param string $sName
+	 * @param string $sSecret
+	 * @param string $sTitle = ''
+	 *
+	 * @return string
+	 */
+	public function GetQRCodeGoogleUrl($sName, $sSecret, $sTitle = '')
+	{
+		$sUrl = sprintf('otpauth://%s/%s?secret=%s&issuer=%s', 'totp', urlencode($sName), $sSecret, urlencode($sTitle));
+		return 'https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl='.\urlencode($sUrl);
+	}
+
+	/**
+	 * @return string
+	 */
+	public function CreateSecret()
+	{
+		$sResult = '';
+		if ($this->IsActive())
+		{
+			$sResult = $this->oDriver->CreateSecret();
+		}
+
+		return $sResult;
+	}
+	
+	/**
+	 * @param string $sSecret
+	 * @param string $sCode
+	 * 
+	 * @return bool
+	 */
+	public function VerifyCode($sSecret, $sCode)
+	{
+		$bResult = false;
+		if ($this->IsActive())
+		{
+			$bResult = $this->oDriver->VerifyCode($sSecret, $sCode);
+		}
+
+		return $bResult;
+	}
+}