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--[[
LuCI - SGI-Module for CGI
Description:
Server Gateway Interface for CGI
FileId:
$Id$
License:
Copyright 2008 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
]]--
module("luci.sgi.cgi", package.seeall)
local ltn12 = require("luci.ltn12")
require("nixio.util")
require("luci.http")
require("luci.sys")
require("luci.dispatcher")
-- Limited source to avoid endless blocking
local function limitsource(handle, limit)
limit = limit or 0
local BLOCKSIZE = ltn12.BLOCKSIZE
return function()
if limit < 1 then
handle:close()
return nil
else
local read = (limit > BLOCKSIZE) and BLOCKSIZE or limit
limit = limit - read
local chunk = handle:read(read)
if not chunk then handle:close() end
return chunk
end
end
end
function run()
local r = luci.http.Request(
luci.sys.getenv(),
limitsource(io.stdin, tonumber(luci.sys.getenv("CONTENT_LENGTH"))),
ltn12.sink.file(io.stderr)
)
local x = coroutine.create(luci.dispatcher.httpdispatch)
local hcache = ""
local active = true
while coroutine.status(x) ~= "dead" do
local res, id, data1, data2 = coroutine.resume(x, r)
if not res then
print("Status: 500 Internal Server Error")
print("Content-Type: text/plain\n")
print(id)
break;
end
if active then
if id == 1 then
io.write("Status: " .. tostring(data1) .. " " .. data2 .. "\r\n")
elseif id == 2 then
hcache = hcache .. data1 .. ": " .. data2 .. "\r\n"
elseif id == 3 then
io.write(hcache)
io.write("\r\n")
elseif id == 4 then
io.write(tostring(data1 or ""))
elseif id == 5 then
io.flush()
io.close()
active = false
elseif id == 6 then
data1:copyz(nixio.stdout, data2)
data1:close()
end
end
end
end
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