thinkphp6后台添加google登录验证

• 基础环境
  • 系统环境：Windows10 x64
  • PHP集成环境：phpstudy
  • PHP依赖管理工具：Composer
  • 手册：Thinkphp6

（一）下载 GoogleAuthenticator 类

（1）代码亲测有效
（2）代码是在tp6环境下，生成的路径可根据当前Tp版本自行修改

/** * PHP Class for handling Google Authenticator 2-factor authentication. * * @author Michael Kliewe * @copyright 2012 Michael Kliewe * @license http://www.opensource.org/licenses/bsd-license.php BSD License * * @link http://www.phpgangsta.de/ */class GoogleAuthenticator{    protected $_codeLength = 6;    /**     * Create new secret.     * 16 characters, randomly chosen from the allowed base32 characters.     *     * @param int $secretLength     *     * @return string     */    public function createSecret($secretLength = 16)    {        $validChars = $this->_getBase32LookupTable();        // Valid secret lengths are 80 to 640 bits        if ($secretLength < 16 || $secretLength > 128) {            throw new Exception('Bad secret length');        }        $secret = '';        $rnd = false;        if (function_exists('random_bytes')) {            $rnd = random_bytes($secretLength);        } elseif (function_exists('mcrypt_create_iv')) {            $rnd = mcrypt_create_iv($secretLength, MCRYPT_DEV_URANDOM);        } elseif (function_exists('openssl_random_pseudo_bytes')) {            $rnd = openssl_random_pseudo_bytes($secretLength, $cryptoStrong);            if (!$cryptoStrong) {                $rnd = false;            }        }        if ($rnd !== false) {            for ($i = 0; $i < $secretLength; ++$i) {                $secret .= $validChars[ord($rnd[$i]) & 31];            }        } else {            throw new Exception('No source of secure random');        }        return $secret;    }    /**     * Calculate the code, with given secret and point in time.     *     * @param string   $secret     * @param int|null $timeSlice     *     * @return string     */    public function getCode($secret, $timeSlice = null)    {        if ($timeSlice === null) {            $timeSlice = floor(time() / 30);        }        $secretkey = $this->_base32Decode($secret);        // Pack time into binary string        $time = chr(0).chr(0).chr(0).chr(0).pack('N*', $timeSlice);        // Hash it with users secret key        $hm = hash_hmac('SHA1', $time, $secretkey, true);        // Use last nipple of result as index/offset        $offset = ord(substr($hm, -1)) & 0x0F;        // grab 4 bytes of the result        $hashpart = substr($hm, $offset, 4);        // Unpak binary value        $value = unpack('N', $hashpart);        $value = $value[1];        // Only 32 bits        $value = $value & 0x7FFFFFFF;        $modulo = pow(10, $this->_codeLength);        return str_pad($value % $modulo, $this->_codeLength, '0', STR_PAD_LEFT);    }    /**     * Get QR-Code URL for image, from google charts.     *     * @param string $name     * @param string $secret     * @param string $title     * @param array  $params     *     * @return string     */    public function getQRCodeGoogleUrl($name, $secret, $title = null, $params = array())    {        $width = !empty($params['width']) && (int) $params['width'] > 0 ? (int) $params['width'] : 200;        $height = !empty($params['height']) && (int) $params['height'] > 0 ? (int) $params['height'] : 200;        $level = !empty($params['level']) && array_search($params['level'], array('L', 'M', 'Q', 'H')) !== false ? $params['level'] : 'M';        $urlencoded = urlencode('otpauth://totp/'.$name.'?secret='.$secret.'');        if (isset($title)) {            $urlencoded .= urlencode('&issuer='.urlencode($title));        }        return "https://api.qrserver.com/v1/create-qr-code/?data=$urlencoded&size=${width}x${height}&ecc=$level";    }    /**     * Check if the code is correct. This will accept codes starting from $discrepancy*30sec ago to $discrepancy*30sec from now.     *     * @param string   $secret     * @param string   $code     * @param int      $discrepancy      This is the allowed time drift in 30 second units (8 means 4 minutes before or after)     * @param int|null $currentTimeSlice time slice if we want use other that time()     *     * @return bool     */    public function verifyCode($secret, $code, $discrepancy = 1, $currentTimeSlice = null)    {        if ($currentTimeSlice === null) {            $currentTimeSlice = floor(time() / 30);        }        if (strlen($code) != 6) {            return false;        }        for ($i = -$discrepancy; $i <= $discrepancy; ++$i) {            $calculatedCode = $this->getCode($secret, $currentTimeSlice + $i);            if ($this->timingSafeEquals($calculatedCode, $code)) {                return true;            }        }        return false;    }    /**     * Set the code length, should be >=6.     *     * @param int $length     *     * @return PHPGangsta_GoogleAuthenticator     */    public function setCodeLength($length)    {        $this->_codeLength = $length;        return $this;    }    /**     * Helper class to decode base32.     *     * @param $secret     *     * @return bool|string     */    protected function _base32Decode($secret)    {        if (empty($secret)) {            return '';        }        $base32chars = $this->_getBase32LookupTable();        $base32charsFlipped = array_flip($base32chars);        $paddingCharCount = substr_count($secret, $base32chars[32]);        $allowedValues = array(6, 4, 3, 1, 0);        if (!in_array($paddingCharCount, $allowedValues)) {            return false;        }        for ($i = 0; $i < 4; ++$i) {            if ($paddingCharCount == $allowedValues[$i] &&                substr($secret, -($allowedValues[$i])) != str_repeat($base32chars[32], $allowedValues[$i])) {                return false;            }        }        $secret = str_replace('=', '', $secret);        $secret = str_split($secret);        $binaryString = '';        for ($i = 0; $i < count($secret); $i = $i + 8) {            $x = '';            if (!in_array($secret[$i], $base32chars)) {                return false;            }            for ($j = 0; $j < 8; ++$j) {                $x .= str_pad(base_convert(@$base32charsFlipped[@$secret[$i + $j]], 10, 2), 5, '0', STR_PAD_LEFT);            }            $eightBits = str_split($x, 8);            for ($z = 0; $z < count($eightBits); ++$z) {                $binaryString .= (($y = chr(base_convert($eightBits[$z], 2, 10))) || ord($y) == 48) ? $y : '';            }        }        return $binaryString;    }    /**     * Get array with all 32 characters for decoding from/encoding to base32.     *     * @return array     */    protected function _getBase32LookupTable()    {        return array(            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', //  7            'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', // 15            'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', // 23            'Y', 'Z', '2', '3', '4', '5', '6', '7', // 31            '=',  // padding char        );    }    /**     * A timing safe equals comparison     * more info here: http://blog.ircmaxell.com/2014/11/its-all-about-time.html.     *     * @param string $safeString The internal (safe) value to be checked     * @param string $userString The user submitted (unsafe) value     *     * @return bool True if the two strings are identical     */    private function timingSafeEquals($safeString, $userString)    {        if (function_exists('hash_equals')) {            return hash_equals($safeString, $userString);        }        $safeLen = strlen($safeString);        $userLen = strlen($userString);        if ($userLen != $safeLen) {            return false;        }        $result = 0;        for ($i = 0; $i < $userLen; ++$i) {            $result |= (ord($safeString[$i]) ^ ord($userString[$i]));        }        // They are only identical strings if $result is exactly 0...        return $result === 0;    }}

（二）使用

（1）生成 谷歌秘钥和验证二维码
（2）将谷歌秘钥和验证二维码保存到数据库

 //谷歌验证码$google=new GoogleAuthenticator();//生成验证秘钥$secret=$google->createSecret();//生成验证二维码 $username 需要绑定的用户名$qrCodeUrl = $google->getQRCodeGoogleUrl($username, $secret);//存入数据库.....省略代码

（3）谷歌验证

$google=new GoogleAuthenticator();//$google_secret 存入的谷歌秘钥  ，$code 谷歌动态验证码$checkResult = $google->verifyCode($google_secret, $code, 4);  if (!$checkResult){      $this->error('谷歌验证码错误');  }

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