95 lines
2.2 KiB
Lua
95 lines
2.2 KiB
Lua
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--[[
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LuCI - Lua Configuration Interface
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Copyright 2008 Steven Barth <steven@midlink.org>
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Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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$Id: jsonrpc.lua 3000 2008-08-29 12:27:54Z Cyrus $
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]]--
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module("luci.jsonrpc", package.seeall)
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require "luci.json"
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function resolve(mod, method)
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local path = luci.util.split(method, ".")
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for j=1, #path-1 do
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if not type(mod) == "table" then
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break
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end
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mod = rawget(mod, path[j])
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if not mod then
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break
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end
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end
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mod = type(mod) == "table" and rawget(mod, path[#path]) or nil
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if type(mod) == "function" then
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return mod
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end
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end
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function handle(tbl, rawsource, ...)
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local decoder = luci.json.Decoder()
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local stat = luci.ltn12.pump.all(rawsource, decoder:sink())
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local json = decoder:get()
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local response
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local success = false
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if stat then
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if type(json.method) == "string"
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and (not json.params or type(json.params) == "table") then
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local method = resolve(tbl, json.method)
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if method then
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response = reply(json.jsonrpc, json.id,
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proxy(method, unpack(json.params or {})))
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else
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response = reply(json.jsonrpc, json.id,
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nil, {code=-32601, message="Method not found."})
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end
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else
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response = reply(json.jsonrpc, json.id,
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nil, {code=-32600, message="Invalid request."})
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end
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else
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response = reply("2.0", nil,
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nil, {code=-32700, message="Parse error."})
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end
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return luci.json.Encoder(response, ...):source()
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end
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function reply(jsonrpc, id, res, err)
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require "luci.json"
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id = id or luci.json.null
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-- 1.0 compatibility
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if jsonrpc ~= "2.0" then
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jsonrpc = nil
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res = res or luci.json.null
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err = err or luci.json.null
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end
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return {id=id, result=res, error=err, jsonrpc=jsonrpc}
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end
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function proxy(method, ...)
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local res = {luci.util.copcall(method, ...)}
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local stat = table.remove(res, 1)
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if not stat then
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return nil, {code=-32602, message="Invalid params.", data=table.remove(res, 1)}
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else
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if #res <= 1 then
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return res[1] or luci.json.null
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else
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return res
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end
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end
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end
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