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--[[
LuCI - Lua Configuration Interface
Copyright 2008 Steven Barth <steven@midlink.org>
Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
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.jsonrpc", package.seeall)
function resolve(mod, method)
local path = luci.util.split(value, ".")
for j=1, #path-1 do
if not type(mod) == "table" then
break
end
mod = mod[path[j]]
if not mod then
break
end
end
mod = type(mod) == "table" and mod[path[#path]] or nil
if type(mod) == "function" then
return mod
end
end
function handle(tbl, rawdata)
local stat, json = luci.util.copcall(luci.json.Decode, rawdata)
local response
local success = false
if stat then
if type(json.method) == "string"
and (not json.params or type(json.params) == "table") then
if tbl[json.method] then
response = reply(json.jsonrpc, json.id,
proxy(resolve(tbl, json.method), unpack(json.params)))
else
response = reply(json.jsonrpc, json.id,
nil, {code=-32601, message="Method not found."})
end
else
response = reply(json.jsonrpc, json.id,
nil, {code=-32600, message="Invalid request."})
end
else
response = reply(json.jsonrpc, nil,
nil, {code=-32700, message="Parse error."})
end
return luci.json.Encode(response)
end
function reply(jsonrpc, id, res, err)
require "luci.json"
id = id or luci.json.Null
-- 1.0 compatibility
if jsonrpc ~= "2.0" then
jsonrpc = nil
res = res or luci.json.Null
err = err or luci.json.Null
end
return {id=id, result=res, error=err, jsonrpc=jsonrpc}
end
function proxy(method, ...)
local res = {luci.util.copcall(method, unpack(params))}
local stat = table.remove(res, 1)
if not stat then
return nil, {code=-32602, message="Invalid params.", data=table.remove(res, 1)}
else
return (#res <= 1) and res[1] or res
end
end
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