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--[[
Session authentication
(c) 2008 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
$Id$
]]--
module("luci.sauth", package.seeall)
require("luci.fs")
require("luci.util")
require("luci.config")
luci.config.sauth = luci.config.sauth or {}
sessionpath = luci.config.sauth.sessionpath
sessiontime = tonumber(luci.config.sauth.sessiontime)
function clean()
local now = os.time()
local files = luci.fs.dir(sessionpath)
if not files then
return nil
end
for i, file in pairs(files) do
local fname = sessionpath .. "/" .. file
local stat = luci.fs.stat(fname)
if stat and stat.type == "regular" and stat.atime + sessiontime < now then
luci.fs.unlink(fname)
end
end
end
function prepare()
luci.fs.mkdir(sessionpath)
luci.fs.chmod(sessionpath, "a-rwx,u+rwx")
end
function read(id)
if not id then
return
end
clean()
return luci.fs.readfile(sessionpath .. "/" .. id)
end
function write(id, data)
if not luci.fs.stat(sessionpath) then
prepare()
end
luci.fs.writefile(sessionpath .. "/" .. id, data)
luci.fs.chmod(sessionpath .. "/" .. id, "a-rwx,u+rw")
end
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