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local filename, args = ...
local docroot = args
-- create new class XFilterDrop
local XFilterDrop = { }
XFilterDrop.__index = XFilterDrop
-- "classmethod" to create new instance
function XFilterDrop:new(vr)
-- vr:debug("New XSendfile instance")
local o = { }
setmetatable(o, self)
return o
end
-- normal method to handle content
function XFilterDrop:handle(vr, outq, inq)
-- drop input, close it
if nil ~= inq then
inq.is_closed = true
inq:skip_all()
end
return lighty.HANDLER_GO_ON
end
-- create a new filter which drops all input and adds it to the vrequest
-- returns the filter object so you can insert your own content in f.out (it is already closed)
local function add_drop_filter(vr)
local f = vr:add_filter_out(XFilterDrop:new())
local inq = f['in']
if nil ~= inq then
inq.is_closed = true
inq:skip_all()
end
f.out.is_closed = true
return f
end
local function handle_x_sendfile(vr)
-- vr:debug("handle x-sendfile")
-- wait for response
if not vr.has_response then
if vr.is_handled then
-- vr:debug("x-sendfile: waiting for response headers")
return lighty.HANDLER_WAIT_FOR_EVENT
else
-- vr:debug("No response handler yet, cannot handle X-Sendfile")
return lighty.HANDLER_GO_ON
end
end
-- vr:debug("handle x-sendfile: headers available")
-- add filter if x-sendfile header is not empty
local xs = vr.resp.headers["X-Sendfile"]
if xs and xs ~= "" then
xs = lighty.path_simplify(xs)
if docroot and xs:sub(docroot.len()) ~= docroot then
vr:error("x-sendfile: File '".. xs .. "'not in required docroot '" .. docroot .. "'")
return lighty.HANDLER_GO_ON
end
-- make sure to drop all other content from the backend
local f = add_drop_filter(vr)
vr.resp.headers["X-Sendfile"] = nil -- remove header from response
-- Add checks for the pathname here
vr:debug("XSendfile:handle: pushing file '" .. xs .. "' as content")
f.out:add_file(xs)
end
end
actions = handle_x_sendfile