-- 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.
---- LuCI web dispatcher.
local fs = require "nixio.fs"
local sys = require "luci.sys"
local util = require "luci.util"
local fi
---- Build the URL relative to the server webroot from given virtual path.
--- @param ... Virtual path
--- @return Relative URL
function build_url(...)
local path = {...}
local url = { http.getenv("SCRIPT_NAME") or "" }
return table.concat(url, "")
end
---- Check whether a dispatch node shall be visible
--- @param node Dispatch node
--- @return Boolean indicating whether the node should be visible
function node_visible(node)
if node then
return not (
return false
end
---- Return a sorted table of visible childs within a given node
--- @param node Dispatch node
--- @return Ordered table of child node names
function node_childs(node)
local rv = { }
if node then
end
---- Send a 404 error code and render the "error404" template if available.
--- @param message Custom error message (optional)
--- @return false
function error404(message)
http.status(404, "Not Found")
message = message or "Not Found"
return false
end
---- Send a 500 error code and render the "error500" template if available.
--- @param message Custom error message (optional)#
--- @return false
function error500(message)
util.perror(message)
if not context.template_header_sent then
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
end
---- Dispatch an HTTP request.
--- @param request LuCI HTTP Request object
function httpdispatch(request, prefix)
http.context.request = request
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()
--context._disable_memtrace()
end
---- Dispatches a LuCI virtual path.
--- @param request Virtual path
+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 dispatch(request)
--context._disable_memtrace = require "luci.debug".trap_memtrace("l")
local ctx = context
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
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")
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 = {
}
})
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
end
else
ctx.authsession = sess
+ ctx.authtoken = token
ctx.authuser = user
end
end
+ if c and require_post_security(c.target) then
+ if http.getenv("REQUEST_METHOD") ~= "POST" then
+ http.status(405, "Method Not Allowed")
+ http.header("Allow", "POST")
+ return
+ end
+
+ if http.formvalue("token") ~= ctx.authtoken then
+ http.status(403, "Forbidden")
+ luci.template.render("csrftoken")
+ return
+ end
+ end
+
if track.setgroup then
sys.process.setgroup(track.setgroup)
end
if track.setuser then
+ -- trigger ubus connection before dropping root privs
+ util.ubus()
+
sys.process.setuser(track.setuser)
end
end
end
---- Generate the dispatching index using the native file-cache based strategy.
function createindex()
local controllers = { }
local base = "%s/controller/" % util.libpath()
end
end
---- Create the dispatching tree from the index.
-- Build the index before if it does not exist yet.
function createtree()
if not index then
return tree
end
---- Register a tree modifier.
--- @param func Modifier function
--- @param order Modifier order value (optional)
function modifier(func, order)
context.modifiers[#context.modifiers+1] = {
func = func,
}
end
---- Clone a node of the dispatching tree to another position.
--- @param path Virtual path destination
--- @param clone Virtual path source
--- @param title Destination node title (optional)
--- @param order Destination node order value (optional)
--- @return Dispatching tree node
function assign(path, clone, title, order)
local obj = node(unpack(path))
obj.nodes = nil
return obj
end
---- Create a new dispatching node and define common parameters.
--- @param path Virtual path
--- @param target Target function to call when dispatched.
--- @param title Destination node title
--- @param order Destination node order value (optional)
--- @return Dispatching tree node
function entry(path, target, title, order)
local c = node(unpack(path))
return c
end
---- Fetch or create a dispatching node without setting the target module or
-- enabling the node.
--- @param ... Virtual path
--- @return Dispatching tree node
function get(...)
return _create_node({...})
end
---- Fetch or create a new dispatching node.
--- @param ... Virtual path
--- @return Dispatching tree node
function node(...)
local c = _create_node({...})
dispatch(path)
end
---- Alias the first (lowest order) page automatically
function firstchild()
return { type = "firstchild", target = _firstchild }
end
---- Create a redirect to another dispatching node.
--- @param ... Virtual path destination
function alias(...)
local req = {...}
return function(...)
end
end
---- Rewrite the first x path values of the request.
--- @param n Number of path values to replace
--- @param ... Virtual path to replace removed path values with
function rewrite(n, ...)
local req = {...}
return function(...)
end
end
---- Create a function-call dispatching target.
--- @param name Target function of local controller
--- @param ... Additional parameters passed to the function
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)
end
---- Create a template render dispatching target.
--- @param name Template to be rendered
function template(name)
return {type = "template", view = name, target = _template}
end
end
end
---- Create a CBI model dispatching target.
--- @param model CBI model to be rendered
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
target:target(unpack(argv))
end
---- Create a combined dispatching target for non argv and argv requests.
--- @param trg1 Overview Target
--- @param trg2 Detail Target
function arcombine(trg1, trg2)
return {type = "arcombine", env = getfenv(), target = _arcombine, targets = {trg1, trg2}}
end
tpl.render("footer")
end
---- Create a CBI form model dispatching target.
--- @param model CBI form model tpo be rendered
function form(model)
- return {type = "cbi", model = model, target = _form}
+ return {
+ type = "cbi",
+ post = { ["cbi.submit"] = "1" },
+ model = model,
+ target = _form
+ }
end
---- Access the luci.i18n translate() api.
--- @class function
--- @name translate
--- @param text Text to translate
translate = i18n.translate
---- No-op function used to mark translation entries for menu labels.
-- This function does not actually translate the given argument but
-- is used by build/i18n-scan.pl to find translatable entries.
function _(text)
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