libs/sgi-wsapi/luasrc/sgi/wsapi.lua

   1 --[[
   2 LuCI - SGI-Module for WSAPI
   3
   4 Description:
   5 Server Gateway Interface for WSAPI
   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.wsapi", package.seeall)
  27 require("luci.http")
  28 require("luci.dispatcher")
  29 require("wsapi.request")
  30
  31 function run(wsapi_env)
  32         local r = luci.http.Request()
  33         r.env = wsapi_env
  34         r.request = wsapi.request.parse_post_data(wsapi_env,
  35                 wsapi.request.parse_qs(wsapi_env.QUERY_STRING))
  36
  37         local res, id, data1, data2 = true, 0, nil, nil
  38         local headers = {}
  39         local status = 200
  40
  41         local x = coroutine.create(luci.dispatcher.httpdispatch)
  42         while id < 3 do
  43                 res, id, data1, data2 = coroutine.resume(x, r)
  44
  45                 if not res then
  46                         status = 500
  47                         headers["Content-Type"] = "text/plain"
  48                         local err = {id}
  49                         return status, headers, function() local x = table.remove(err) return x end
  50                 end
  51
  52                 if id == 1 then
  53                         status = data1
  54                 elseif id == 2 then
  55                         headers[data1] = data2
  56                 end
  57         end
  58
  59         local function iter()
  60                 local res, id, data1, data2 = coroutine.resume(x)
  61                 if not res or id == 5 then
  62                         return nil
  63                 else
  64                         return data1
  65                 end
  66         end
  67
  68         return status, headers, iter
  69 end