X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=libs%2Fweb%2Fluasrc%2Fsauth.lua;h=41681ab16a7c62f24eb6882b678cf34292afe8a8;hb=0d4ec2bbba8479154e63824e5315a0e0e01087a2;hp=0ac236753eaff905e6cee7d303cb6b327d3de6ea;hpb=bb8137062f3ea698d39ca25b86b44b9c3cc12dde;p=oweals%2Fluci.git diff --git a/libs/web/luasrc/sauth.lua b/libs/web/luasrc/sauth.lua index 0ac236753..41681ab16 100644 --- a/libs/web/luasrc/sauth.lua +++ b/libs/web/luasrc/sauth.lua @@ -15,38 +15,38 @@ $Id$ --- LuCI session library. module("luci.sauth", package.seeall) -require("luci.fs") require("luci.util") require("luci.sys") require("luci.config") +local nixio = require "nixio", require "nixio.util" +local fs = require "nixio.fs" luci.config.sauth = luci.config.sauth or {} sessionpath = luci.config.sauth.sessionpath -sessiontime = tonumber(luci.config.sauth.sessiontime) +sessiontime = tonumber(luci.config.sauth.sessiontime) or 15 * 60 --- Manually clean up expired sessions. function clean() local now = os.time() - local files = luci.fs.dir(sessionpath) + local files = fs.dir(sessionpath) if not files then return nil end - for i, file in pairs(files) do + for file in 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) + local stat = fs.stat(fname) + if stat and stat.type == "reg" and stat.mtime + sessiontime < now then + fs.unlink(fname) end end end --- Prepare session storage by creating the session directory. function prepare() - luci.fs.mkdir(sessionpath) - luci.fs.chmod(sessionpath, "a-rwx,u+rwx") + fs.mkdir(sessionpath, 700) if not sane() then error("Security Exception: Session path is not sane!") @@ -57,11 +57,18 @@ end -- @param id Session identifier -- @return Session data function read(id) - if not id or not sane(sessionpath .. "/" .. id) then + if not id or #id == 0 then return end + if not id:match("^%w+$") then + error("Session ID is not sane!") + end clean() - return luci.fs.readfile(sessionpath .. "/" .. id) + if not sane(sessionpath .. "/" .. id) then + return + end + fs.utimes(sessionpath .. "/" .. id) + return fs.readfile(sessionpath .. "/" .. id) end @@ -69,8 +76,8 @@ end -- @return Boolean status function sane(file) return luci.sys.process.info("uid") - == luci.fs.stat(file or sessionpath, "uid") - and luci.fs.stat(file or sessionpath, "mode") + == fs.stat(file or sessionpath, "uid") + and fs.stat(file or sessionpath, "modestr") == (file and "rw-------" or "rwx------") end @@ -82,6 +89,21 @@ function write(id, data) if not sane() then prepare() end - luci.fs.writefile(sessionpath .. "/" .. id, data) - luci.fs.chmod(sessionpath .. "/" .. id, "a-rwx,u+rw") -end \ No newline at end of file + if not id:match("^%w+$") then + error("Session ID is not sane!") + end + + local f = nixio.open(sessionpath .. "/" .. id, "w", 600) + f:writeall(data) + f:close() +end + + +--- Kills a session +-- @param id Session identifier +function kill(id) + if not id:match("^%w+$") then + error("Session ID is not sane!") + end + fs.unlink(sessionpath .. "/" .. id) +end