X-Git-Url: http://git.vanrenterghem.biz/www.vanrenterghem.biz.git/blobdiff_plain/4b1ce0d83844cfd7c55e75a60ccb239882cd62e3..83ab5456767602f2a9860a7db7247f002ec96945:/phpBB2/includes/sessions.php diff --git a/phpBB2/includes/sessions.php b/phpBB2/includes/sessions.php deleted file mode 100644 index 851fae7..0000000 --- a/phpBB2/includes/sessions.php +++ /dev/null @@ -1,578 +0,0 @@ -sql_query($sql))) - { - message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql); - } - - $userdata = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - $enable_autologin = $login = 1; - } - else if (!$auto_create) - { - $sessiondata['autologinid'] = ''; - $sessiondata['userid'] = $user_id; - - $sql = 'SELECT * - FROM ' . USERS_TABLE . ' - WHERE user_id = ' . (int) $user_id . ' - AND user_active = 1'; - if (!($result = $db->sql_query($sql))) - { - message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql); - } - - $userdata = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - - $login = 1; - } - } - - // - // At this point either $userdata should be populated or - // one of the below is true - // * Key didn't match one in the DB - // * User does not exist - // * User is inactive - // - if (!sizeof($userdata) || !is_array($userdata) || !$userdata) - { - $sessiondata['autologinid'] = ''; - $sessiondata['userid'] = $user_id = ANONYMOUS; - $enable_autologin = $login = 0; - - $sql = 'SELECT * - FROM ' . USERS_TABLE . ' - WHERE user_id = ' . (int) $user_id; - if (!($result = $db->sql_query($sql))) - { - message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql); - } - - $userdata = $db->sql_fetchrow($result); - $db->sql_freeresult($result); - } - - - // - // Initial ban check against user id, IP and email address - // - preg_match('/(..)(..)(..)(..)/', $user_ip, $user_ip_parts); - - $sql = "SELECT ban_ip, ban_userid, ban_email - FROM " . BANLIST_TABLE . " - WHERE ban_ip IN ('" . $user_ip_parts[1] . $user_ip_parts[2] . $user_ip_parts[3] . $user_ip_parts[4] . "', '" . $user_ip_parts[1] . $user_ip_parts[2] . $user_ip_parts[3] . "ff', '" . $user_ip_parts[1] . $user_ip_parts[2] . "ffff', '" . $user_ip_parts[1] . "ffffff') - OR ban_userid = $user_id"; - if ( $user_id != ANONYMOUS ) - { - $sql .= " OR ban_email LIKE '" . str_replace("\'", "''", $userdata['user_email']) . "' - OR ban_email LIKE '" . substr(str_replace("\'", "''", $userdata['user_email']), strpos(str_replace("\'", "''", $userdata['user_email']), "@")) . "'"; - } - if ( !($result = $db->sql_query($sql)) ) - { - message_die(CRITICAL_ERROR, 'Could not obtain ban information', '', __LINE__, __FILE__, $sql); - } - - if ( $ban_info = $db->sql_fetchrow($result) ) - { - if ( $ban_info['ban_ip'] || $ban_info['ban_userid'] || $ban_info['ban_email'] ) - { - message_die(CRITICAL_MESSAGE, 'You_been_banned'); - } - } - - // - // Create or update the session - // - $sql = "UPDATE " . SESSIONS_TABLE . " - SET session_user_id = $user_id, session_start = $current_time, session_time = $current_time, session_page = $page_id, session_logged_in = $login, session_admin = $admin - WHERE session_id = '" . $session_id . "' - AND session_ip = '$user_ip'"; - if ( !$db->sql_query($sql) || !$db->sql_affectedrows() ) - { - $session_id = md5(dss_rand()); - - $sql = "INSERT INTO " . SESSIONS_TABLE . " - (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) - VALUES ('$session_id', $user_id, $current_time, $current_time, '$user_ip', $page_id, $login, $admin)"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error creating new session', '', __LINE__, __FILE__, $sql); - } - } - - if ( $user_id != ANONYMOUS ) - { - $last_visit = ( $userdata['user_session_time'] > 0 ) ? $userdata['user_session_time'] : $current_time; - - if (!$admin) - { - $sql = "UPDATE " . USERS_TABLE . " - SET user_session_time = $current_time, user_session_page = $page_id, user_lastvisit = $last_visit - WHERE user_id = $user_id"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error updating last visit time', '', __LINE__, __FILE__, $sql); - } - } - - $userdata['user_lastvisit'] = $last_visit; - - // - // Regenerate the auto-login key - // - if ($enable_autologin) - { - $auto_login_key = dss_rand() . dss_rand(); - - if (isset($sessiondata['autologinid']) && (string) $sessiondata['autologinid'] != '') - { - $sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . " - SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time - WHERE key_id = '" . md5($sessiondata['autologinid']) . "'"; - } - else - { - $sql = 'INSERT INTO ' . SESSIONS_KEYS_TABLE . "(key_id, user_id, last_ip, last_login) - VALUES ('" . md5($auto_login_key) . "', $user_id, '$user_ip', $current_time)"; - } - - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error updating session key', '', __LINE__, __FILE__, $sql); - } - - $sessiondata['autologinid'] = $auto_login_key; - unset($auto_login_key); - } - else - { - $sessiondata['autologinid'] = ''; - } - -// $sessiondata['autologinid'] = (!$admin) ? (( $enable_autologin && $sessionmethod == SESSION_METHOD_COOKIE ) ? $auto_login_key : '') : $sessiondata['autologinid']; - $sessiondata['userid'] = $user_id; - } - - $userdata['session_id'] = $session_id; - $userdata['session_ip'] = $user_ip; - $userdata['session_user_id'] = $user_id; - $userdata['session_logged_in'] = $login; - $userdata['session_page'] = $page_id; - $userdata['session_start'] = $current_time; - $userdata['session_time'] = $current_time; - $userdata['session_admin'] = $admin; - $userdata['session_key'] = $sessiondata['autologinid']; - - setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure); - setcookie($cookiename . '_sid', $session_id, 0, $cookiepath, $cookiedomain, $cookiesecure); - - $SID = 'sid=' . $session_id; - - return $userdata; -} - -// -// Checks for a given user session, tidies session table and updates user -// sessions at each page refresh -// -function session_pagestart($user_ip, $thispage_id) -{ - global $db, $lang, $board_config; - global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; - - $cookiename = $board_config['cookie_name']; - $cookiepath = $board_config['cookie_path']; - $cookiedomain = $board_config['cookie_domain']; - $cookiesecure = $board_config['cookie_secure']; - - $current_time = time(); - unset($userdata); - - if ( isset($HTTP_COOKIE_VARS[$cookiename . '_sid']) || isset($HTTP_COOKIE_VARS[$cookiename . '_data']) ) - { - $sessiondata = isset( $HTTP_COOKIE_VARS[$cookiename . '_data'] ) ? unserialize(stripslashes($HTTP_COOKIE_VARS[$cookiename . '_data'])) : array(); - $session_id = isset( $HTTP_COOKIE_VARS[$cookiename . '_sid'] ) ? $HTTP_COOKIE_VARS[$cookiename . '_sid'] : ''; - $sessionmethod = SESSION_METHOD_COOKIE; - } - else - { - $sessiondata = array(); - $session_id = ( isset($HTTP_GET_VARS['sid']) ) ? $HTTP_GET_VARS['sid'] : ''; - $sessionmethod = SESSION_METHOD_GET; - } - - // - if (!preg_match('/^[A-Za-z0-9]*$/', $session_id)) - { - $session_id = ''; - } - - $thispage_id = (int) $thispage_id; - - // - // Does a session exist? - // - if ( !empty($session_id) ) - { - // - // session_id exists so go ahead and attempt to grab all - // data in preparation - // - $sql = "SELECT u.*, s.* - FROM " . SESSIONS_TABLE . " s, " . USERS_TABLE . " u - WHERE s.session_id = '$session_id' - AND u.user_id = s.session_user_id"; - if ( !($result = $db->sql_query($sql)) ) - { - message_die(CRITICAL_ERROR, 'Error doing DB query userdata row fetch', '', __LINE__, __FILE__, $sql); - } - - $userdata = $db->sql_fetchrow($result); - - // - // Did the session exist in the DB? - // - if ( isset($userdata['user_id']) ) - { - // - // Do not check IP assuming equivalence, if IPv4 we'll check only first 24 - // bits ... I've been told (by vHiker) this should alleviate problems with - // load balanced et al proxies while retaining some reliance on IP security. - // - $ip_check_s = substr($userdata['session_ip'], 0, 6); - $ip_check_u = substr($user_ip, 0, 6); - - if ($ip_check_s == $ip_check_u) - { - $SID = ($sessionmethod == SESSION_METHOD_GET || defined('IN_ADMIN')) ? 'sid=' . $session_id : ''; - - // - // Only update session DB a minute or so after last update - // - if ( $current_time - $userdata['session_time'] > 60 ) - { - // A little trick to reset session_admin on session re-usage - $update_admin = (!defined('IN_ADMIN') && $current_time - $userdata['session_time'] > ($board_config['session_length']+60)) ? ', session_admin = 0' : ''; - - $sql = "UPDATE " . SESSIONS_TABLE . " - SET session_time = $current_time, session_page = $thispage_id$update_admin - WHERE session_id = '" . $userdata['session_id'] . "'"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error updating sessions table', '', __LINE__, __FILE__, $sql); - } - - if ( $userdata['user_id'] != ANONYMOUS ) - { - $sql = "UPDATE " . USERS_TABLE . " - SET user_session_time = $current_time, user_session_page = $thispage_id - WHERE user_id = " . $userdata['user_id']; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error updating sessions table', '', __LINE__, __FILE__, $sql); - } - } - - session_clean($userdata['session_id']); - - setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure); - setcookie($cookiename . '_sid', $session_id, 0, $cookiepath, $cookiedomain, $cookiesecure); - } - - // Add the session_key to the userdata array if it is set - if ( isset($sessiondata['autologinid']) && $sessiondata['autologinid'] != '' ) - { - $userdata['session_key'] = $sessiondata['autologinid']; - } - - return $userdata; - } - } - } - - // - // If we reach here then no (valid) session exists. So we'll create a new one, - // using the cookie user_id if available to pull basic user prefs. - // - $user_id = ( isset($sessiondata['userid']) ) ? intval($sessiondata['userid']) : ANONYMOUS; - - if ( !($userdata = session_begin($user_id, $user_ip, $thispage_id, TRUE)) ) - { - message_die(CRITICAL_ERROR, 'Error creating user session', '', __LINE__, __FILE__, $sql); - } - - return $userdata; - -} - -/** -* Terminates the specified session -* It will delete the entry in the sessions table for this session, -* remove the corresponding auto-login key and reset the cookies -*/ -function session_end($session_id, $user_id) -{ - global $db, $lang, $board_config, $userdata; - global $HTTP_COOKIE_VARS, $HTTP_GET_VARS, $SID; - - $cookiename = $board_config['cookie_name']; - $cookiepath = $board_config['cookie_path']; - $cookiedomain = $board_config['cookie_domain']; - $cookiesecure = $board_config['cookie_secure']; - - $current_time = time(); - - if (!preg_match('/^[A-Za-z0-9]*$/', $session_id)) - { - return; - } - - // - // Delete existing session - // - $sql = 'DELETE FROM ' . SESSIONS_TABLE . " - WHERE session_id = '$session_id' - AND session_user_id = $user_id"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error removing user session', '', __LINE__, __FILE__, $sql); - } - - // - // Remove this auto-login entry (if applicable) - // - if ( isset($userdata['session_key']) && $userdata['session_key'] != '' ) - { - $autologin_key = md5($userdata['session_key']); - $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' - WHERE user_id = ' . (int) $user_id . " - AND key_id = '$autologin_key'"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error removing auto-login key', '', __LINE__, __FILE__, $sql); - } - } - - // - // We expect that message_die will be called after this function, - // but just in case it isn't, reset $userdata to the details for a guest - // - $sql = 'SELECT * - FROM ' . USERS_TABLE . ' - WHERE user_id = ' . ANONYMOUS; - if ( !($result = $db->sql_query($sql)) ) - { - message_die(CRITICAL_ERROR, 'Error obtaining user details', '', __LINE__, __FILE__, $sql); - } - if ( !($userdata = $db->sql_fetchrow($result)) ) - { - message_die(CRITICAL_ERROR, 'Error obtaining user details', '', __LINE__, __FILE__, $sql); - } - $db->sql_freeresult($result); - - - setcookie($cookiename . '_data', '', $current_time - 31536000, $cookiepath, $cookiedomain, $cookiesecure); - setcookie($cookiename . '_sid', '', $current_time - 31536000, $cookiepath, $cookiedomain, $cookiesecure); - - return true; -} - -/** -* Removes expired sessions and auto-login keys from the database -*/ -function session_clean($session_id) -{ - global $board_config, $db; - - // - // Delete expired sessions - // - $sql = 'DELETE FROM ' . SESSIONS_TABLE . ' - WHERE session_time < ' . (time() - (int) $board_config['session_length']) . " - AND session_id <> '$session_id'"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error clearing sessions table', '', __LINE__, __FILE__, $sql); - } - - // - // Delete expired auto-login keys - // If max_autologin_time is not set then keys will never be deleted - // (same behaviour as old 2.0.x session code) - // - if (!empty($board_config['max_autologin_time']) && $board_config['max_autologin_time'] > 0) - { - $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' - WHERE last_login < ' . (time() - (86400 * (int) $board_config['max_autologin_time'])); - $db->sql_query($sql); - } - - return true; -} - -/** -* Reset all login keys for the specified user -* Called on password changes -*/ -function session_reset_keys($user_id, $user_ip) -{ - global $db, $userdata, $board_config; - - $key_sql = ($user_id == $userdata['user_id'] && !empty($userdata['session_key'])) ? "AND key_id != '" . md5($userdata['session_key']) . "'" : ''; - - $sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . ' - WHERE user_id = ' . (int) $user_id . " - $key_sql"; - - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error removing auto-login keys', '', __LINE__, __FILE__, $sql); - } - - $where_sql = 'session_user_id = ' . (int) $user_id; - $where_sql .= ($user_id == $userdata['user_id']) ? " AND session_id <> '" . $userdata['session_id'] . "'" : ''; - $sql = 'DELETE FROM ' . SESSIONS_TABLE . " - WHERE $where_sql"; - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error removing user session(s)', '', __LINE__, __FILE__, $sql); - } - - if ( !empty($key_sql) ) - { - $auto_login_key = dss_rand() . dss_rand(); - - $current_time = time(); - - $sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . " - SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time - WHERE key_id = '" . md5($userdata['session_key']) . "'"; - - if ( !$db->sql_query($sql) ) - { - message_die(CRITICAL_ERROR, 'Error updating session key', '', __LINE__, __FILE__, $sql); - } - - // And now rebuild the cookie - $sessiondata['userid'] = $user_id; - $sessiondata['autologinid'] = $auto_login_key; - $cookiename = $board_config['cookie_name']; - $cookiepath = $board_config['cookie_path']; - $cookiedomain = $board_config['cookie_domain']; - $cookiesecure = $board_config['cookie_secure']; - - setcookie($cookiename . '_data', serialize($sessiondata), $current_time + 31536000, $cookiepath, $cookiedomain, $cookiesecure); - - $userdata['session_key'] = $auto_login_key; - unset($sessiondata); - unset($auto_login_key); - } -} - -// -// Append $SID to a url. Borrowed from phplib and modified. This is an -// extra routine utilised by the session code above and acts as a wrapper -// around every single URL and form action. If you replace the session -// code you must include this routine, even if it's empty. -// -function append_sid($url, $non_html_amp = false) -{ - global $SID; - - if ( !empty($SID) && !preg_match('#sid=#', $url) ) - { - $url .= ( ( strpos($url, '?') !== false ) ? ( ( $non_html_amp ) ? '&' : '&' ) : '?' ) . $SID; - } - - return $url; -} - -?> \ No newline at end of file