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--[[
/*
* Baltisot
* Copyright (C) 1999-2008 Nicolas "Pixel" Noble
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
]]--
local session_expire = 60 * 60
local session_cleanup_throttle = 60 * 10
local last_cleanup = time()
local sessions = {}
local function generate_new_session()
local ticket = GenTicket()
sessions[ticket] = {
data = {},
access = time()
}
return ticket
end
local function clean_sessions()
local t = time()
if last_cleanup <= (t - session_cleanup_throttle) then
local expired, k, v = t - session_expire
for k, v in pairs(sessions) do
if v.access <= expired then
sessions[k] = nil
end
end
last_cleanup = t
end
end
function get_cookies(req)
local cookies = {}
if req.headers.Cookie then
local cookie_strings = split(req.headers.Cookie, ";")
local k, v
for k, v in pairs(cookie_strings) do
local cname, cvalue = string.match(v, "([^=]+)=(.+)")
if cname then cookies[trim(cname)] = trim(cvalue) end
end
end
return cookies
end
function set_cookie(res, key, val)
res.cookies_path = "/"
res.cookies = key .. "=" .. val
end
function get_session(req, res)
local sid
clean_sessions()
sid = get_cookies(req)["sid"]
if not sid or not sessions[sid] then
sid = generate_new_session()
end
set_cookie(res, "sid", sid)
sessions[sid].access = time()
return sessions[sid].data, sid
end
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