diff options
Diffstat (limited to 'modules/luci-base/luasrc/dispatcher.lua')
| -rw-r--r-- | modules/luci-base/luasrc/dispatcher.lua | 146 |
1 files changed, 95 insertions, 51 deletions
diff --git a/modules/luci-base/luasrc/dispatcher.lua b/modules/luci-base/luasrc/dispatcher.lua index 8b8d1fa349..cd5d77a12b 100644 --- a/modules/luci-base/luasrc/dispatcher.lua +++ b/modules/luci-base/luasrc/dispatcher.lua @@ -1,4 +1,5 @@ -- Copyright 2008 Steven Barth <steven@midlink.org> +-- Copyright 2008-2015 Jo-Philipp Wich <jow@openwrt.org> -- Licensed to the public under the Apache License 2.0. local fs = require "nixio.fs" @@ -26,14 +27,6 @@ function build_url(...) local path = {...} local url = { http.getenv("SCRIPT_NAME") or "" } - local k, v - for k, v in pairs(context.urltoken) do - url[#url+1] = "/;" - url[#url+1] = http.urlencode(k) - url[#url+1] = "=" - url[#url+1] = http.urlencode(v) - end - local p for _, p in ipairs(path) do if p:match("^[a-zA-Z0-9_%-%.%%/,;]+$") then @@ -42,6 +35,10 @@ function build_url(...) end end + if #path == 0 then + url[#url+1] = "/" + end + return table.concat(url, "") end @@ -112,24 +109,11 @@ function authenticator.htmlauth(validator, accs, default) return user end - if context.urltoken.stok then - context.urltoken.stok = nil - - local cookie = 'sysauth=%s; expires=%s; path=%s/' %{ - http.getcookie('sysauth') or 'x', - 'Thu, 01 Jan 1970 01:00:00 GMT', - build_url() - } - - http.header("Set-Cookie", cookie) - http.redirect(build_url()) - else - require("luci.i18n") - require("luci.template") - context.path = {} - http.status(403, "Forbidden") - luci.template.render("sysauth", {duser=default, fuser=user}) - end + require("luci.i18n") + require("luci.template") + context.path = {} + http.status(403, "Forbidden") + luci.template.render("sysauth", {duser=default, fuser=user}) return false @@ -140,7 +124,6 @@ function httpdispatch(request, prefix) local r = {} context.request = r - context.urltoken = {} local pathinfo = http.urldecode(request:getenv("PATH_INFO") or "", true) @@ -150,18 +133,8 @@ function httpdispatch(request, prefix) end end - local tokensok = true for node in pathinfo:gmatch("[^/]+") do - local tkey, tval - if tokensok then - tkey, tval = node:match(";(%w+)=([a-fA-F0-9]*)") - end - if tkey then - context.urltoken[tkey] = tval - else - tokensok = false - r[#r+1] = node - end + r[#r+1] = node end local stat, err = util.coxpcall(function() @@ -173,6 +146,48 @@ function httpdispatch(request, prefix) --context._disable_memtrace() end +local function require_post_security(target) + if type(target) == "table" then + if type(target.post) == "table" then + local param_name, required_val, request_val + + for param_name, required_val in pairs(target.post) do + request_val = http.formvalue(param_name) + + if (type(required_val) == "string" and + request_val ~= required_val) or + (required_val == true and + (request_val == nil or request_val == "")) + then + return false + end + end + + return true + end + + return (target.post == true) + end + + return false +end + +function test_post_security() + if http.getenv("REQUEST_METHOD") ~= "POST" then + http.status(405, "Method Not Allowed") + http.header("Allow", "POST") + return false + end + + if http.formvalue("token") ~= context.authtoken then + http.status(403, "Forbidden") + luci.template.render("csrftoken") + return false + end + + return true +end + function dispatch(request) --context._disable_memtrace = require "luci.debug".trap_memtrace("l") local ctx = context @@ -206,7 +221,6 @@ function dispatch(request) ctx.args = args ctx.requestargs = ctx.requestargs or args local n - local token = ctx.urltoken local preq = {} local freq = {} @@ -284,11 +298,14 @@ function dispatch(request) resource = luci.config.main.resourcebase; ifattr = function(...) return _ifattr(...) end; attr = function(...) return _ifattr(true, ...) end; + url = build_url; }, {__index=function(table, key) if key == "controller" then return build_url() elseif key == "REQUEST_URI" then return build_url(unpack(ctx.requestpath)) + elseif key == "token" then + return ctx.authtoken else return rawget(table, key) or _G[key] end @@ -311,20 +328,17 @@ function dispatch(request) local def = (type(track.sysauth) == "string") and track.sysauth local accs = def and {track.sysauth} or track.sysauth local sess = ctx.authsession - local verifytoken = false if not sess then sess = http.getcookie("sysauth") sess = sess and sess:match("^[a-f0-9]*$") - verifytoken = true end local sdat = (util.ubus("session", "get", { ubus_rpc_session = sess }) or { }).values - local user + local user, token if sdat then - if not verifytoken or ctx.urltoken.stok == sdat.token then - user = sdat.user - end + user = sdat.user + token = sdat.token else local eu = http.getenv("HTTP_AUTH_USER") local ep = http.getenv("HTTP_AUTH_PASS") @@ -357,12 +371,10 @@ function dispatch(request) end if sess and token then - http.header("Set-Cookie", 'sysauth=%s; path=%s/' %{ - sess, build_url() - }) + http.header("Set-Cookie", 'sysauth=%s; path=%s' %{ sess, build_url() }) - ctx.urltoken.stok = token ctx.authsession = sess + ctx.authtoken = token ctx.authuser = user http.redirect(build_url(unpack(ctx.requestpath))) @@ -374,10 +386,17 @@ function dispatch(request) end else ctx.authsession = sess + ctx.authtoken = token ctx.authuser = user end end + if c and require_post_security(c.target) then + if not test_post_security(c) then + return + end + end + if track.setgroup then sys.process.setgroup(track.setgroup) end @@ -703,6 +722,20 @@ function call(name, ...) return {type = "call", argv = {...}, name = name, target = _call} end +function post_on(params, name, ...) + return { + type = "call", + post = params, + argv = { ... }, + name = name, + target = _call + } +end + +function post(...) + return post_on(true, ...) +end + local _template = function(self, ...) require "luci.template".render(self.view) @@ -814,7 +847,13 @@ local function _cbi(self, ...) end function cbi(model, config) - return {type = "cbi", config = config, model = model, target = _cbi} + return { + type = "cbi", + post = { ["cbi.submit"] = "1" }, + config = config, + model = model, + target = _cbi + } end @@ -854,7 +893,12 @@ local function _form(self, ...) end function form(model) - return {type = "cbi", model = model, target = _form} + return { + type = "cbi", + post = { ["cbi.submit"] = "1" }, + model = model, + target = _form + } end translate = i18n.translate |