diff options
Diffstat (limited to 'program/include/session.inc')
| -rw-r--r-- | program/include/session.inc | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/program/include/session.inc b/program/include/session.inc deleted file mode 100644 index bd4e2a1ea..000000000 --- a/program/include/session.inc +++ /dev/null @@ -1,271 +0,0 @@ -<?php - -/* - +-----------------------------------------------------------------------+ - | program/include/session.inc | - | | - | This file is part of the RoundCube Webmail client | - | Copyright (C) 2005-2009, RoundCube Dev. - Switzerland | - | Licensed under the GNU GPL | - | | - | PURPOSE: | - | Provide database supported session management | - | | - +-----------------------------------------------------------------------+ - | Author: Thomas Bruederli <roundcube@gmail.com> | - +-----------------------------------------------------------------------+ - - $Id$ - -*/ - -$GLOBALS['rcube_session_unsets'] = array(); - -function rcube_sess_open($save_path, $session_name) -{ - return true; -} - - -function rcube_sess_close() -{ - return true; -} - - -// read session data -function rcube_sess_read($key) -{ - global $SESS_CHANGED, $SESS_CLIENT_IP; - - $DB = rcmail::get_instance()->get_dbh(); - - $sql_result = $DB->query( - "SELECT vars, ip, " . $DB->unixtimestamp('changed') . " AS changed - FROM " . get_table_name('session') . " - WHERE sess_id=?", - $key); - - if ($sql_arr = $DB->fetch_assoc($sql_result)) { - $SESS_CHANGED = $sql_arr['changed']; - $SESS_CLIENT_IP = $sql_arr['ip']; - - if (strlen($sql_arr['vars'])) - return $sql_arr['vars']; - } - - return false; -} - - -// save session data -function rcube_sess_write($key, $vars) -{ - $DB = rcmail::get_instance()->get_dbh(); - - $now = $DB->fromunixtime(time()); - - $sql_result = $DB->query( - "SELECT vars FROM " . get_table_name('session') . " - WHERE sess_id=?", $key); - - if ($sql_arr = $DB->fetch_assoc($sql_result)) { - - $a_oldvars = rcube_sess_unserialize($sql_arr['vars']); - foreach ((array)$GLOBALS['rcube_session_unsets'] as $k) - unset($a_oldvars[$k]); - - $DB->query( - "UPDATE " . get_table_name('session') . " - SET vars=?, changed= " . $now . " - WHERE sess_id=?", - rcube_sess_serialize(array_merge($a_oldvars, rcube_sess_unserialize($vars))), - $key); - } - else { - $DB->query( - "INSERT INTO " . get_table_name('session') . " - (sess_id, vars, ip, created, changed) - VALUES (?, ?, ?, " . $now . ", " . $now .")", - $key, - $vars, - (string)$_SERVER['REMOTE_ADDR']); - } - - $GLOBALS['rcube_session_unsets'] = array(); - return true; -} - - -// unset session variable -function rcube_sess_unset($var=NULL) -{ - if (empty($var)) - return rcube_sess_destroy(session_id()); - - $GLOBALS['rcube_session_unsets'][] = $var; - unset($_SESSION[$var]); - - return true; -} - - -// serialize session data -function rcube_sess_serialize($vars) -{ - $data = ''; - if (is_array($vars)) - foreach ($vars as $var=>$value) - $data .= $var.'|'.serialize($value); - else - $data = 'b:0;'; - return $data; -} - - -// unserialize session data -// http://www.php.net/manual/en/function.session-decode.php#56106 -function rcube_sess_unserialize($str) -{ - $str = (string)$str; - $endptr = strlen($str); - $p = 0; - - $serialized = ''; - $items = 0; - $level = 0; - - while ($p < $endptr) { - $q = $p; - while ($str[$q] != '|') - if (++$q >= $endptr) break 2; - - if ($str[$p] == '!') { - $p++; - $has_value = false; - } else { - $has_value = true; - } - - $name = substr($str, $p, $q - $p); - $q++; - - $serialized .= 's:' . strlen($name) . ':"' . $name . '";'; - - if ($has_value) { - for (;;) { - $p = $q; - switch (strtolower($str[$q])) { - case 'n': /* null */ - case 'b': /* boolean */ - case 'i': /* integer */ - case 'd': /* decimal */ - do $q++; - while ( ($q < $endptr) && ($str[$q] != ';') ); - $q++; - $serialized .= substr($str, $p, $q - $p); - if ($level == 0) break 2; - break; - case 'r': /* reference */ - $q+= 2; - for ($id = ''; ($q < $endptr) && ($str[$q] != ';'); $q++) $id .= $str[$q]; - $q++; - $serialized .= 'R:' . ($id + 1) . ';'; /* increment pointer because of outer array */ - if ($level == 0) break 2; - break; - case 's': /* string */ - $q+=2; - for ($length=''; ($q < $endptr) && ($str[$q] != ':'); $q++) $length .= $str[$q]; - $q+=2; - $q+= (int)$length + 2; - $serialized .= substr($str, $p, $q - $p); - if ($level == 0) break 2; - break; - case 'a': /* array */ - case 'o': /* object */ - do $q++; - while ( ($q < $endptr) && ($str[$q] != '{') ); - $q++; - $level++; - $serialized .= substr($str, $p, $q - $p); - break; - case '}': /* end of array|object */ - $q++; - $serialized .= substr($str, $p, $q - $p); - if (--$level == 0) break 2; - break; - default: - return false; - } - } - } else { - $serialized .= 'N;'; - $q+= 2; - } - $items++; - $p = $q; - } - - return unserialize( 'a:' . $items . ':{' . $serialized . '}' ); -} - - -// handler for session_destroy() -function rcube_sess_destroy($key) -{ - $DB = rcmail::get_instance()->get_dbh(); - - $DB->query("DELETE FROM " . get_table_name('session') . " WHERE sess_id=?", $key); - - return true; -} - - -// garbage collecting function -function rcube_sess_gc($maxlifetime) -{ - $rcmail = rcmail::get_instance(); - $DB = $rcmail->get_dbh(); - - // just delete all expired sessions - $DB->query("DELETE FROM " . get_table_name('session') . " - WHERE changed < " . $DB->fromunixtime(time() - $maxlifetime)); - - if ($rcmail->config->get('enable_caching')) - rcmail_cache_gc(); - - rcmail_temp_gc(); - - return true; -} - - -function rcube_sess_regenerate_id() -{ - $randval = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; - - for ($random = "", $i=1; $i <= 32; $i++) { - $random .= substr($randval, mt_rand(0,(strlen($randval) - 1)), 1); - } - - // use md5 value for id or remove capitals from string $randval - $random = md5($random); - - // delete old session record - rcube_sess_destroy(session_id()); - - session_id($random); - - $cookie = session_get_cookie_params(); - $lifetime = $cookie['lifetime'] ? time() + $cookie['lifetime'] : 0; - - rcmail::setcookie(session_name(), $random, $lifetime); - - return true; -} - - -// set custom functions for PHP session management -session_set_save_handler('rcube_sess_open', 'rcube_sess_close', 'rcube_sess_read', 'rcube_sess_write', 'rcube_sess_destroy', 'rcube_sess_gc'); - -?> |