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