/**
* Processes an authentication request from a relying party.
*
* An authentication request has an openid.mode value of
* checkid_setup or checkid_immediate.
*
* If the authentication request is a standard OpenID request about an identity
* (i.e. contains the key openid.identity), this function calls
* {@link simpleid_checkid_identity()} to see whether the user logged on into SimpleID
* matches the identity supplied in the OpenID request.
*
* If the authentication request is not about an identity, this function calls
* the {@link hook_checkid() checkid hook} of the loaded extensions.
*
* Depending on the OpenID version, this function will supply an appropriate
* assertion.
*
* @param array $request the OpenID request
*
*/
function simpleid_checkid($request)
{
global $version;
$immediate = $request['openid.mode'] == 'checkid_immediate';
log_info('OpenID authentication request: ' . ($immediate ? 'immediate' : 'setup') . '; ' . log_array($request));
// Check for protocol correctness
if ($version == OPENID_VERSION_1_1) {
if (!isset($request['openid.return_to'])) {
log_error('Protocol Error: openid.return_to not set.');
indirect_fatal_error('Protocol Error: openid.return_to not set.');
return;
}
if (!isset($request['openid.identity'])) {
log_error('Protocol Error: openid.identity not set.');
indirect_fatal_error('Protocol Error: openid.identity not set.');
return;
}
}
if ($version >= OPENID_VERSION_2) {
if (isset($request['openid.identity']) && !isset($request['openid.claimed_id'])) {
log_error('Protocol Error: openid.identity set, but not openid.claimed_id.');
indirect_fatal_error('Protocol Error: openid.identity set, but not openid.claimed_id.');
return;
}
if (!isset($request['openid.realm']) && !isset($request['openid.return_to'])) {
log_error('Protocol Error: openid.return_to not set when openid.realm is not set.');
indirect_fatal_error('Protocol Error: openid.return_to not set when openid.realm is not set.');
return;
}
}
if (isset($request['openid.return_to'])) {
$realm = openid_get_realm($request, $version);
if (!openid_url_matches_realm($request['openid.return_to'], $realm)) {
log_error('Protocol Error: openid.return_to does not match realm.');
openid_indirect_error($request['openid.return_to'], 'Protocol Error: openid.return_to does not match realm.');
return;
}
}
if (isset($request['openid.identity'])) {
// Standard request
log_debug('openid.identity found, use simpleid_checkid_identity');
$result = simpleid_checkid_identity($request, $immediate);
} else {
log_debug('openid.identity not found, trying extensions');
// Extension request
$results = extension_invoke_all('checkid', $request, $immediate);
// Filter out nulls
$results = array_merge(array_diff($results, array(NULL)));
// If there are still results, it is the lowest value, otherwise, it is CHECKID_PROTOCOL_ERROR
$result = $results ? min($results) : CHECKID_PROTOCOL_ERROR;
}
switch ($result) {
case CHECKID_APPROVAL_REQUIRED:
log_info('CHECKID_APPROVAL_REQUIRED');
if ($immediate) {
$response = simpleid_checkid_approval_required($request);
simpleid_assertion_response($response, $request['openid.return_to']);
} else {
$response = simpleid_checkid_ok($request);
simpleid_openid_consent_form($request, $response, $result);
}
break;
case CHECKID_RETURN_TO_SUSPECT:
log_info('CHECKID_RETURN_TO_SUSPECT');
if ($immediate) {
$response = simpleid_checkid_error($request, $immediate);
simpleid_assertion_response($response, $request['openid.return_to']);
} else {
$response = simpleid_checkid_ok($request);
simpleid_openid_consent_form($request, $response, $result);
}
break;
case CHECKID_OK:
log_info('CHECKID_OK');
$response = simpleid_checkid_ok($request);
$response = simpleid_sign($response, isset($request['openid.assoc_handle']) ? $request['openid.assoc_handle'] : NULL);
simpleid_assertion_response($response, $request['openid.return_to']);
break;
case CHECKID_LOGIN_REQUIRED:
log_info('CHECKID_LOGIN_REQUIRED');
if ($immediate) {
$response = simpleid_checkid_login_required($request);
simpleid_assertion_response($response, $request['openid.return_to']);
} else {
user_login_form('continue', pickle($request));
exit;
}
break;
case CHECKID_IDENTITIES_NOT_MATCHING:
case CHECKID_IDENTITY_NOT_EXIST:
log_info('CHECKID_IDENTITIES_NOT_MATCHING | CHECKID_IDENTITY_NOT_EXIST');
$response = simpleid_checkid_error($request, $immediate);
if ($immediate) {
simpleid_assertion_response($response, $request['openid.return_to']);
} else {
simpleid_openid_consent_form($request, $response, $result);
}
break;
case CHECKID_PROTOCOL_ERROR:
if (isset($request['openid.return_to'])) {
$response = simpleid_checkid_error($request, $immediate);
simpleid_assertion_response($response, $request['openid.return_to']);
} else {
indirect_fatal_error('Unrecognised request.');
}
break;
}
}
/**
* Entry point for SimpleID upgrade script.
*
* @see user_init()
*/
function upgrade_start()
{
global $xtpl, $GETPOST;
$xtpl = new XTemplate('html/template.xtpl');
$xtpl->assign('version', SIMPLEID_VERSION);
$xtpl->assign('base_path', get_base_path());
$xtpl->assign('css', '@import url(' . get_base_path() . 'html/upgrade.css);');
// Check if the configuration file has been defined
if (!defined('SIMPLEID_BASE_URL')) {
indirect_fatal_error('No configuration file found. See the <a href="http://simpleid.koinic.net/documentation/getting-started">manual</a> for instructions on how to set up a configuration file.');
}
if (!is_dir(SIMPLEID_IDENTITIES_DIR)) {
indirect_fatal_error('Identities directory not found. See the <a href="http://simpleid.koinic.net/documentation/getting-started">manual</a> for instructions on how to set up SimpleID.');
}
if (!is_dir(SIMPLEID_CACHE_DIR) || !is_writeable(SIMPLEID_CACHE_DIR)) {
indirect_fatal_error('Cache directory not found or not writeable. See the <a href="http://simpleid.koinic.net/documentation/getting-started">manual</a> for instructions on how to set up SimpleID.');
}
if (!is_dir(SIMPLEID_STORE_DIR) || !is_writeable(SIMPLEID_STORE_DIR)) {
indirect_fatal_error('Store directory not found or not writeable. See the <a href="http://simpleid.koinic.net/documentation/getting-started">manual</a> for instructions on how to set up SimpleID.');
}
if (@ini_get('register_globals') === 1 || @ini_get('register_globals') === '1' || strtolower(@ini_get('register_globals')) == 'on') {
indirect_fatal_error('register_globals is enabled in PHP configuration, which is not supported by SimpleID. See the <a href="http://simpleid.koinic.net/documentation/getting-started/system-requirements">manual</a> for further information.');
}
if (!bignum_loaded()) {
log_fatal('gmp/bcmath PHP extension not loaded.');
indirect_fatal_error('One or more required PHP extensions (gmp/bcmath) is not loaded. See the <a href="http://simpleid.koinic.net/documentation/getting-started/system-requirements">manual</a> for further information on system requirements.');
}
if (!function_exists('preg_match')) {
log_fatal('pcre PHP extension not loaded.');
indirect_fatal_error('One or more required PHP extensions (pcre) is not loaded. See the <a href="http://simpleid.koinic.net/documentation/getting-started/system-requirements">manual</a> for further information on system requirements.');
}
if (!function_exists('session_start')) {
log_fatal('session PHP extension not loaded.');
indirect_fatal_error('One or more required PHP extensions (session) is not loaded. See the <a href="http://simpleid.koinic.net/documentation/getting-started/system-requirements">manual</a> for further information on system requirements.');
}
if (@ini_get('suhosin.get.max_value_length') !== false && @ini_get('suhosin.get.max_value_length') < 1024) {
log_fatal('suhosin.get.max_value_length < 1024');
indirect_fatal_error('suhosin.get.max_value_length is less than 1024, which will lead to problems. See the <a href="http://simpleid.koinic.net/documentation/getting-started/system-requirements">manual</a> for further information on system requirements.');
}
$q = isset($GETPOST['q']) ? $GETPOST['q'] : '';
$q = explode('/', $q);
extension_init();
user_init(NULL);
upgrade_user_init();
$routes = array('upgrade-selection' => 'upgrade_selection', 'upgrade-apply' => 'upgrade_apply', '.*' => 'upgrade_info');
simpleweb_run($routes, implode('/', $q));
}
