applications/sgi-haserl/src/sgi/haserl.lua

   1 --[[
   2 FFLuCI - SGI-Module for Haserl
   3
   4 Description:
   5 Server Gateway Interface for Haserl
   6
   7 FileId:
   8 $Id: haserl.lua 2027 2008-05-07 21:16:35Z Cyrus $
   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("ffluci.sgi.haserl", package.seeall)
  27 require("ffluci.fs")
  28
  29 -- Environment Table
  30 ffluci.http.env = ENV
  31
  32
  33 -- Returns a table of all COOKIE, GET and POST Parameters
  34 function ffluci.http.formvalues()
  35         return FORM
  36 end
  37
  38 -- Gets form value from key
  39 function ffluci.http.formvalue(key, default)
  40         local c = ffluci.http.formvalues()
  41
  42         for match in key:gmatch("[%w-_]+") do
  43                 c = c[match]
  44                 if c == nil then
  45                         return default
  46                 end
  47         end
  48
  49         return c
  50 end
  51
  52 -- Gets a table of values with a certain prefix
  53 function ffluci.http.formvaluetable(prefix)
  54         return ffluci.http.formvalue(prefix, {})
  55 end
  56
  57 -- Sends a custom HTTP-Header
  58 function ffluci.http.header(key, value)
  59         print(key .. ": " .. value)
  60 end
  61
  62 -- Set Content-Type
  63 function ffluci.http.prepare_content(type)
  64         print("Content-Type: "..type.."\n")
  65 end
  66
  67 -- Asks the browser to redirect to "url"
  68 function ffluci.http.redirect(url)
  69         ffluci.http.status(302, "Found")
  70         ffluci.http.header("Location", url)
  71         print()
  72 end
  73
  74 -- Returns the path of an uploaded file
  75 -- WARNING! File uploads can be easily spoofed! Do additional sanity checks!
  76 function ffluci.http.upload(name)
  77         local fpath = ffluci.http.formvalue(name)
  78         local fname = ffluci.http.formvalue(name .. "_name")
  79
  80         if fpath and fname and ffluci.fs.isfile(fpath) then
  81                 return fpath
  82         end
  83 end
  84
  85 -- Sets HTTP-Status-Header
  86 function ffluci.http.status(code, message)
  87         print("Status: " .. tostring(code) .. " " .. message)
  88 end