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|
<?php
/**
* Handle linkback() response from Facebook.
*/
// For backwards compatability look for AuthState first
if (array_key_exists('AuthState', $_REQUEST) && !empty($_REQUEST['AuthState'])) {
$state = \SimpleSAML\Auth\State::loadState(
$_REQUEST['AuthState'],
\SimpleSAML\Module\authfacebook\Auth\Source\Facebook::STAGE_INIT
);
} elseif (array_key_exists('state', $_REQUEST) && !empty($_REQUEST['state'])) {
$state = \SimpleSAML\Auth\State::loadState(
$_REQUEST['state'],
\SimpleSAML\Module\authfacebook\Auth\Source\Facebook::STAGE_INIT
);
} else {
throw new \SimpleSAML\Error\BadRequest('Missing state parameter on facebook linkback endpoint.');
}
// Find authentication source
if (is_null($state) || !array_key_exists(\SimpleSAML\Module\authfacebook\Auth\Source\Facebook::AUTHID, $state)) {
throw new \SimpleSAML\Error\BadRequest(
'No data in state for ' . \SimpleSAML\Module\authfacebook\Auth\Source\Facebook::AUTHID
);
}
$sourceId = $state[\SimpleSAML\Module\authfacebook\Auth\Source\Facebook::AUTHID];
/** @var \SimpleSAML\Module\authfacebook\Auth\Source\Facebook|null $source */
$source = \SimpleSAML\Auth\Source::getById($sourceId);
if ($source === null) {
throw new \SimpleSAML\Error\BadRequest(
'Could not find authentication source with id ' . var_export($sourceId, true)
);
}
try {
if (isset($_REQUEST['error_reason']) && $_REQUEST['error_reason'] == 'user_denied') {
throw new \SimpleSAML\Error\UserAborted();
}
$source->finalStep($state);
} catch (\SimpleSAML\Error\Exception $e) {
\SimpleSAML\Auth\State::throwException($state, $e);
} catch (\Exception $e) {
\SimpleSAML\Auth\State::throwException(
$state,
new \SimpleSAML\Error\AuthSource($sourceId, 'Error on facebook linkback endpoint.', $e)
);
}
\SimpleSAML\Auth\Source::completeAuth($state);
|
