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--[[
LuCId HTTP-Slave
(c) 2009 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
$Id$
]]--
local dsp = require "luci.dispatcher"
local util = require "luci.util"
local http = require "luci.http"
local ltn12 = require "luci.ltn12"
local srv = require "luci.lucid.http.server"
local coroutine = require "coroutine"
local type = type
--- LuCI web handler
-- @cstyle instance
module "luci.lucid.http.handler.luci"
--- Create a LuCI web handler.
-- @class function
-- @param name Name
-- @param prefix Dispatching prefix
-- @return LuCI web handler object
Luci = util.class(srv.Handler)
function Luci.__init__(self, name, prefix)
srv.Handler.__init__(self, name)
self.prefix = prefix
dsp.indexcache = "/tmp/luci-indexcache"
end
--- Handle a HEAD request.
-- @param request Request object
-- @return status code, header table, response source
function Luci.handle_HEAD(self, ...)
local stat, head = self:handle_GET(...)
return stat, head
end
--- Handle a POST request.
-- @param request Request object
-- @return status code, header table, response source
function Luci.handle_POST(self, ...)
return self:handle_GET(...)
end
--- Handle a GET request.
-- @param request Request object
-- @return status code, header table, response source
function Luci.handle_GET(self, request, sourcein)
local r = http.Request(
request.env,
sourcein
)
local res, id, data1, data2 = true, 0, nil, nil
local headers = {}
local status = 200
local active = true
local x = coroutine.create(dsp.httpdispatch)
while not id or id < 3 do
res, id, data1, data2 = coroutine.resume(x, r, self.prefix)
if not res then
status = 500
headers["Content-Type"] = "text/plain"
return status, headers, ltn12.source.string(id)
end
if id == 1 then
status = data1
elseif id == 2 then
if not headers[data1] then
headers[data1] = data2
elseif type(headers[data1]) ~= "table" then
headers[data1] = {headers[data1], data2}
else
headers[data1][#headers[data1]+1] = data2
end
end
end
if id == 6 then
while (coroutine.resume(x)) do end
return status, headers, srv.IOResource(data1, data2)
end
local function iter()
local res, id, data = coroutine.resume(x)
if not res then
return nil, id
elseif not id or not active then
return true
elseif id == 5 then
active = false
while (coroutine.resume(x)) do end
return nil
elseif id == 4 then
return data
end
end
return status, headers, iter
end
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