C:/xampp/htdocs/moodle/lib/zend/Zend/Gdata/ClientLogin.php

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<?php

require_once 'Zend/Gdata/HttpClient.php';

require_once 'Zend/Version.php';

class Zend_Gdata_ClientLogin
{

    const CLIENTLOGIN_URI = 'https://www.google.com/accounts/ClientLogin';

    const DEFAULT_SOURCE = 'Zend-ZendFramework';

    public static function getHttpClient($email, $password, $service = 'xapi',
        $client = null,
        $source = self::DEFAULT_SOURCE,
        $loginToken = null,
        $loginCaptcha = null,
        $loginUri = self::CLIENTLOGIN_URI,
        $accountType = 'HOSTED_OR_GOOGLE')
    {
        if (! ($email && $password)) {
            require_once 'Zend/Gdata/App/AuthException.php';
            throw new Zend_Gdata_App_AuthException(
                   'Please set your Google credentials before trying to ' .
                   'authenticate');
        }

        if ($client == null) {
            $client = new Zend_Gdata_HttpClient();
        }
        if (!$client instanceof Zend_Http_Client) {
            require_once 'Zend/Gdata/App/HttpException.php';
            throw new Zend_Gdata_App_HttpException(
                    'Client is not an instance of Zend_Http_Client.');
        }

        // Build the HTTP client for authentication
        $client->setUri($loginUri);
        $useragent = $source . ' Zend_Framework_Gdata/' . Zend_Version::VERSION;
        $client->setConfig(array(
                'maxredirects'    => 0,
                'strictredirects' => true,
                'useragent' => $useragent
            )
        );
        $client->setParameterPost('accountType', $accountType);
        $client->setParameterPost('Email', (string) $email);
        $client->setParameterPost('Passwd', (string) $password);
        $client->setParameterPost('service', (string) $service);
        $client->setParameterPost('source', (string) $source);
        if ($loginToken || $loginCaptcha) {
            if($loginToken && $loginCaptcha) {
                $client->setParameterPost('logintoken', (string) $loginToken);
                $client->setParameterPost('logincaptcha',
                        (string) $loginCaptcha);
            }
            else {
                require_once 'Zend/Gdata/App/AuthException.php';
                throw new Zend_Gdata_App_AuthException(
                    'Please provide both a token ID and a user\'s response ' .
                    'to the CAPTCHA challenge.');
            }
        }

        // Send the authentication request
        // For some reason Google's server causes an SSL error. We use the
        // output buffer to supress an error from being shown. Ugly - but works!
        ob_start();
        try {
            $response = $client->request('POST');
        } catch (Zend_Http_Client_Exception $e) {
            require_once 'Zend/Gdata/App/HttpException.php';
            throw new Zend_Gdata_App_HttpException($e->getMessage(), $e);
        }
        ob_end_clean();

        // Parse Google's response
        $goog_resp = array();
        foreach (explode("\n", $response->getBody()) as $l) {
            $l = chop($l);
            if ($l) {
                list($key, $val) = explode('=', chop($l), 2);
                $goog_resp[$key] = $val;
            }
        }

        if ($response->getStatus() == 200) {
            $client->setClientLoginToken($goog_resp['Auth']);
            $useragent = $source . ' Zend_Framework_Gdata/' . Zend_Version::VERSION;
            $client->setConfig(array(
                    'strictredirects' => true,
                    'useragent' => $useragent
                )
            );
            return $client;

        } elseif ($response->getStatus() == 403) {
            // Check if the server asked for a CAPTCHA
            if (array_key_exists('Error', $goog_resp) &&
                $goog_resp['Error'] == 'CaptchaRequired') {
                require_once 'Zend/Gdata/App/CaptchaRequiredException.php';
                throw new Zend_Gdata_App_CaptchaRequiredException(
                    $goog_resp['CaptchaToken'], $goog_resp['CaptchaUrl']);
            }
            else {
                require_once 'Zend/Gdata/App/AuthException.php';
                throw new Zend_Gdata_App_AuthException('Authentication with Google failed. Reason: ' .
                    (isset($goog_resp['Error']) ? $goog_resp['Error'] : 'Unspecified.'));
            }
        }
    }

}