/**
* Set Google authentication credentials.
* Must be done before trying to do any Google Data operations that
* require authentication.
* For example, viewing private data, or posting or deleting entries.
*
* @param string $email
* @param string $password
* @param string $service
* @param Zend_Gdata_HttpClient $client
* @param string $source
* @param string $loginToken The token identifier as provided by the server.
* @param string $loginCaptcha The user's response to the CAPTCHA challenge.
* @param string $accountType An optional string to identify whether the
* account to be authenticated is a google or a hosted account. Defaults to
* 'HOSTED_OR_GOOGLE'. See: http://code.google.com/apis/accounts/docs/AuthForInstalledApps.html#Request
* @throws Zend_Gdata_App_AuthException
* @throws Zend_Gdata_App_HttpException
* @throws Zend_Gdata_App_CaptchaRequiredException
* @return Zend_Gdata_HttpClient
*/
public static function getHttpClient($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.'));
}
}
}
/**
* Retrieve a HTTP client object with AuthSub credentials attached
* as the Authorization header
*
* @param string $token The token to retrieve information about
* @param Zend_Gdata_HttpClient $client (optional) HTTP client to use to make the request
*/
public static function getHttpClient($token, $client = null)
{
if ($client == null) {
$client = new Zend_Gdata_HttpClient();
}
if (!$client instanceof Zend_Gdata_HttpClient) {
// require_once 'Zend/Gdata/App/HttpException.php';
throw new Zend_Gdata_App_HttpException('Client is not an instance of Zend_Gdata_HttpClient.');
}
$useragent = 'Zend_Framework_Gdata/' . Zend_Version::VERSION;
$client->setConfig(array('strictredirects' => true, 'useragent' => $useragent));
$client->setAuthSubToken($token);
return $client;
}
