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<?php
/**
* Authenticate using LiveID.
*
* @author Brook Schofield, TERENA.
* @package simpleSAMLphp
*/
class sspmod_authwindowslive_Auth_Source_LiveID extends SimpleSAML_Auth_Source {
/**
* The string used to identify our states.
*/
const STAGE_INIT = 'authwindowslive:init';
/**
* The key of the AuthId field in the state.
*/
const AUTHID = 'authwindowslive:AuthId';
private $key;
private $secret;
/**
* Constructor for this authentication source.
*
* @param array $info Information about this authentication source.
* @param array $config Configuration.
*/
public function __construct($info, $config) {
assert('is_array($info)');
assert('is_array($config)');
/* Call the parent constructor first, as required by the interface. */
parent::__construct($info, $config);
if (!array_key_exists('key', $config))
throw new Exception('LiveID authentication source is not properly configured: missing [key]');
$this->key = $config['key'];
if (!array_key_exists('secret', $config))
throw new Exception('LiveID authentication source is not properly configured: missing [secret]');
$this->secret = $config['secret'];
}
/**
* Log-in using LiveID platform
*
* @param array &$state Information about the current authentication.
*/
public function authenticate(&$state) {
assert('is_array($state)');
/* We are going to need the authId in order to retrieve this authentication source later. */
$state[self::AUTHID] = $this->authId;
$stateID = SimpleSAML_Auth_State::saveState($state, self::STAGE_INIT);
SimpleSAML_Logger::debug('authwindowslive auth state id = ' . $stateID);
// Authenticate the user
// Documentation at: http://msdn.microsoft.com/en-us/library/ff749771.aspx
$authorizeURL = 'https://consent.live.com/Connect.aspx'
. '?wrap_client_id=' . $this->key
. '&wrap_callback=' . urlencode(SimpleSAML_Module::getModuleUrl('authwindowslive') . '/linkback.php')
. '&wrap_client_state=' . urlencode($stateID)
. '&wrap_scope=WL_Profiles.View,Messenger.SignIn'
;
SimpleSAML_Utilities::redirectTrustedURL($authorizeURL);
}
public function finalStep(&$state) {
SimpleSAML_Logger::debug("oauth wrap: Using this verification code [" .
$state['authwindowslive:wrap_verification_code'] . "]");
// Retrieve Access Token
// Documentation at: http://msdn.microsoft.com/en-us/library/ff749686.aspx
$postData = 'wrap_client_id=' . urlencode($this->key)
. '&wrap_client_secret=' . urlencode($this->secret)
. '&wrap_callback=' . urlencode(SimpleSAML_Module::getModuleUrl('authwindowslive') . '/linkback.php')
. '&wrap_verification_code=' . urlencode($state['authwindowslive:wrap_verification_code']);
$context = array(
'http' => array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded',
'content' => $postData,
),
);
$result = SimpleSAML_Utilities::fetch('https://consent.live.com/AccessToken.aspx', $context);
parse_str($result, $response);
// error checking of $response to make sure we can proceed
if (!array_key_exists('wrap_access_token',$response))
throw new Exception('[' . $response['error_code'] . '] ' . $response['wrap_error_reason'] .
"\r\nNo wrap_access_token returned - cannot proceed\r\n" . $response['internal_info']);
SimpleSAML_Logger::debug("Got an access token from the OAuth WRAP service provider [" .
$response['wrap_access_token'] . "] for user [" . $response['uid'] . "]");
// Documentation at: http://msdn.microsoft.com/en-us/library/ff751708.aspx
$opts = array('http' => array('header' => "Accept: application/json\r\nAuthorization: WRAP access_token=" .
$response['wrap_access_token'] . "\r\n"));
$data = SimpleSAML_Utilities::fetch('https://apis.live.net/V4.1/cid-'. $response['uid'] . '/Profiles',$opts);
$userdata = json_decode($data, TRUE);
$attributes = array();
$attributes['windowslive_uid'] = array($response['uid']);
$attributes['windowslive_targetedID'] = array('http://windowslive.com!' . $response['uid']);
$attributes['windowslive_user'] = array($response['uid'] . '@windowslive.com');
if (array_key_exists('Entries',$userdata)) {
foreach($userdata['Entries'][0] AS $key => $value) {
if (is_string($value))
$attributes['windowslive.' . $key] = array((string)$value);
}
if (array_key_exists('Emails', $userdata['Entries'][0]))
$attributes['windowslive_mail'] = array($userdata['Entries'][0]['Emails'][0]['Address']);
}
SimpleSAML_Logger::debug('LiveID Returned Attributes: '. implode(", ",array_keys($attributes)));
$state['Attributes'] = $attributes;
}
}
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