libs/sgi-webuci/luasrc/sgi/webuci.lua

   1 --[[
   2 LuCI - SGI-Module for Webuci
   3
   4 Description:
   5 Server Gateway Interface for Webuci
   6
   7 FileId:
   8 $Id$
   9
  10 License:
  11 Copyright 2008 Steven Barth <steven@midlink.org>
  12
  13 Licensed under the Apache License, Version 2.0 (the "License");
  14 you may not use this file except in compliance with the License.
  15 You may obtain a copy of the License at
  16
  17         http://www.apache.org/licenses/LICENSE-2.0
  18
  19 Unless required by applicable law or agreed to in writing, software
  20 distributed under the License is distributed on an "AS IS" BASIS,
  21 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  22 See the License for the specific language governing permissions and
  23 limitations under the License.
  24
  25 ]]--
  26 module("luci.sgi.webuci", package.seeall)
  27 local ltn12 = require("luci.ltn12")
  28 require("luci.http")
  29 require("luci.util")
  30 require("luci.dispatcher")
  31
  32 function run(env, vars)
  33         local r = luci.http.Request(
  34                 env,
  35                 ltn12.source.empty(),
  36                 ltn12.sink.file(io.stderr)
  37         )
  38
  39         r.message.params = vars
  40
  41         local x = coroutine.create(luci.dispatcher.httpdispatch)
  42         local status = ""
  43         local headers = {}
  44         local active = true
  45
  46         while coroutine.status(x) ~= "dead" do
  47                 local res, id, data1, data2 = coroutine.resume(x, r)
  48
  49                 if not res then
  50                         print(env.SERVER_PROTOCOL .. " 500 Internal Server Error")
  51                         print("Content-Type: text/plain\n")
  52                         print(id)
  53                         break;
  54                 end
  55
  56                 if active then
  57                         if id == 1 then
  58                                 status = env.SERVER_PROTOCOL .. " " .. tostring(data1) .. " " .. data2 .. "\r\n"
  59                         elseif id == 2 then
  60                                 headers[data1] = data2
  61                         elseif id == 3 then
  62                                 io.write(status)
  63                                 for k, v in pairs(headers) do
  64                                         io.write(k .. ": " .. v .. "\r\n")
  65                                 end
  66                                 io.write("\r\n")
  67                         elseif id == 4 then
  68                                 io.write(data1)
  69                         elseif id == 5 then
  70                                 active = false
  71                         end
  72                 end
  73         end
  74 end