X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=modules%2Fluci-base%2Fluasrc%2Fdispatcher.lua;h=91a4c63a67fef5b185b68a1935c2d90e328f7825;hp=795b62bedbff28b5e3a1bd31ffda91fe9e7e6474;hb=c2cf5d185587c3ad8d550c39707e744ee2b0811d;hpb=cd24ad05a4a87e5bb37a64a26a72e609b523c640 diff --git a/modules/luci-base/luasrc/dispatcher.lua b/modules/luci-base/luasrc/dispatcher.lua index 795b62bed..91a4c63a6 100644 --- a/modules/luci-base/luasrc/dispatcher.lua +++ b/modules/luci-base/luasrc/dispatcher.lua @@ -1,4 +1,5 @@ -- Copyright 2008 Steven Barth +-- Copyright 2008-2015 Jo-Philipp Wich -- 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 @@ -112,17 +109,11 @@ function authenticator.htmlauth(validator, accs, default) return user end - if context.urltoken.stok then - context.urltoken.stok = nil - http.header("Set-Cookie", "sysauth=; path="..build_url()) - 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 @@ -133,7 +124,6 @@ function httpdispatch(request, prefix) local r = {} context.request = r - context.urltoken = {} local pathinfo = http.urldecode(request:getenv("PATH_INFO") or "", true) @@ -143,18 +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() @@ -166,6 +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 @@ -199,7 +221,6 @@ function dispatch(request) ctx.args = args ctx.requestargs = ctx.requestargs or args local n - local token = ctx.urltoken local preq = {} local freq = {} @@ -277,11 +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 @@ -293,7 +317,7 @@ function dispatch(request) "Access Violation\nThe page at '" .. table.concat(request, "/") .. "/' " .. "has no parent node so the access to this location has been denied.\n" .. "This is a software bug, please report this message at " .. - "http://luci.subsignal.org/trac/newticket" + "https://github.com/openwrt/luci/issues" ) if track.sysauth then @@ -304,20 +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") @@ -329,13 +350,14 @@ function dispatch(request) if not util.contains(accs, user) then if authen then local user, sess = authen(sys.user.checkpasswd, accs, def) + local token if not user or not util.contains(accs, user) then return else if not sess then - local sdat = util.ubus("session", "create", { timeout = luci.config.sauth.sessiontime }) + local sdat = util.ubus("session", "create", { timeout = tonumber(luci.config.sauth.sessiontime) }) if sdat then - local token = sys.uniqueid(16) + token = sys.uniqueid(16) util.ubus("session", "set", { ubus_rpc_session = sdat.ubus_rpc_session, values = { @@ -345,15 +367,17 @@ function dispatch(request) } }) sess = sdat.ubus_rpc_session - ctx.urltoken.stok = token end end - if sess then - http.header("Set-Cookie", "sysauth=" .. sess.."; path="..build_url()) - http.redirect(build_url(unpack(ctx.requestpath))) + if sess and token then + http.header("Set-Cookie", 'sysauth=%s; path=%s' %{ sess, build_url() }) + ctx.authsession = sess + ctx.authtoken = token ctx.authuser = user + + http.redirect(build_url(unpack(ctx.requestpath))) end end else @@ -362,10 +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 @@ -688,6 +719,20 @@ 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) @@ -799,7 +844,13 @@ 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 @@ -839,7 +890,12 @@ 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