2 * variable_get('openid_xrds_maximum_tag_count', 30000)) { return array(); } xml_parse($parser, $xml); xml_parser_free($parser); return $xrds_services; } /** * Parser callback functions */ function _xrds_element_start(&$parser, $name, $attribs) { global $xrds_open_elements; $xrds_open_elements[] = _xrds_strip_namespace($name); } function _xrds_element_end(&$parser, $name) { global $xrds_open_elements, $xrds_services, $xrds_current_service; $name = _xrds_strip_namespace($name); if ($name == 'SERVICE') { if (in_array(OPENID_NS_2_0 .'/signon', $xrds_current_service['types']) || in_array(OPENID_NS_2_0 .'/server', $xrds_current_service['types'])) { $xrds_current_service['version'] = 2; } elseif (in_array(OPENID_NS_1_1, $xrds_current_service['types']) || in_array(OPENID_NS_1_0, $xrds_current_service['types'])) { $xrds_current_service['version'] = 1; } if (!empty($xrds_current_service['version'])) { $xrds_services[] = $xrds_current_service; } $xrds_current_service = array(); } array_pop($xrds_open_elements); } function _xrds_cdata(&$parser, $data) { global $xrds_open_elements, $xrds_services, $xrds_current_service; $path = strtoupper(implode('/', $xrds_open_elements)); switch ($path) { case 'XRDS/XRD/SERVICE/TYPE': $xrds_current_service['types'][] = $data; break; case 'XRDS/XRD/SERVICE/URI': $xrds_current_service['uri'] = $data; break; case 'XRDS/XRD/SERVICE/DELEGATE': $xrds_current_service['delegate'] = $data; break; case 'XRDS/XRD/SERVICE/LOCALID': $xrds_current_service['localid'] = $data; break; } } function _xrds_strip_namespace($name) { // Strip namespacing. $pos = strrpos($name, ':'); if ($pos !== FALSE) { $name = substr($name, $pos + 1, strlen($name)); } return $name; }