<?php /** * OpenID protocol key-value/comma-newline format parsing and * serialization * * PHP versions 4 and 5 * * LICENSE: See the COPYING file included in this distribution. * * @access private * @package OpenID * @author JanRain, Inc. <openid@janrain.com> * @copyright 2005-2008 Janrain, Inc. * @license http://www.apache.org/licenses/LICENSE-2.0 Apache */ /** * Container for key-value/comma-newline OpenID format and parsing */ class Auth_OpenID_KVForm { /** * Convert an OpenID colon/newline separated string into an * associative array * * @static * @access private */ static function toArray($kvs, $strict=false) { $lines = explode("\n", $kvs); $last = array_pop($lines); if ($last !== '') { array_push($lines, $last); if ($strict) { return false; } } $values = array(); for ($lineno = 0; $lineno < count($lines); $lineno++) { $line = $lines[$lineno]; $kv = explode(':', $line, 2); if (count($kv) != 2) { if ($strict) { return false; } continue; } $key = $kv[0]; $tkey = trim($key); if ($tkey != $key) { if ($strict) { return false; } } $value = $kv[1]; $tval = trim($value); if ($tval != $value) { if ($strict) { return false; } } $values[$tkey] = $tval; } return $values; } /** * Convert an array into an OpenID colon/newline separated string * * @static * @access private */ static function fromArray($values) { if ($values === null) { return null; } ksort($values); $serialized = ''; foreach ($values as $key => $value) { if (is_array($value)) { list($key, $value) = array($value[0], $value[1]); } if (strpos($key, ':') !== false) { return null; } if (strpos($key, "\n") !== false) { return null; } if (strpos($value, "\n") !== false) { return null; } $serialized .= "$key:$value\n"; } return $serialized; } }