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<?php
/**
* Handle linkback() response from Windows Live ID.
*/
if (!array_key_exists('state', $_REQUEST)) {
throw new Exception('Lost OAuth Client State');
}
$state = SimpleSAML_Auth_State::loadState($_REQUEST['state'], sspmod_authwindowslive_Auth_Source_LiveID::STAGE_INIT);
// http://msdn.microsoft.com/en-us/library/ff749771.aspx
if (array_key_exists('code', $_REQUEST)) {
// good
$state['authwindowslive:verification_code'] = $_REQUEST['code'];
if (array_key_exists('exp', $_REQUEST)) {
$state['authwindowslive:exp'] = $_REQUEST['exp'];
}
} else {
// In the OAuth WRAP service, error_reason = 'user_denied' means user chose
// not to login with LiveID. It isn't clear that this is still true in the
// newer API, but the parameter name has changed to error. It doesn't hurt
// to preserve support for this, so this is left in as a placeholder.
// redirect them to their original page so they can choose another auth mechanism
if ($_REQUEST['error'] === 'user_denied') {
$e = new SimpleSAML_Error_UserAborted();
SimpleSAML_Auth_State::throwException($state, $e);
}
// error
throw new Exception('Authentication failed: ['.$_REQUEST['error'].'] '.$_REQUEST['error_description']);
}
// find authentication source
assert('array_key_exists(sspmod_authwindowslive_Auth_Source_LiveID::AUTHID, $state)');
$sourceId = $state[sspmod_authwindowslive_Auth_Source_LiveID::AUTHID];
$source = SimpleSAML_Auth_Source::getById($sourceId);
if ($source === null) {
throw new Exception('Could not find authentication source with id '.$sourceId);
}
$source->finalStep($state);
SimpleSAML_Auth_Source::completeAuth($state);
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