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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local httpserver = require "net.httpserver";
local open = io.open;
local t_concat = table.concat;
local http_base = config.get("*", "core", "http_path") or "www_files";
local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" };
local response_403 = { status = "403 Forbidden", body = "<h1>Forbidden</h1>You don't have permission to view the contents of this directory :(" };
local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" };
-- TODO: Should we read this from /etc/mime.types if it exists? (startup time...?)
local mime_map = {
html = "text/html";
htm = "text/html";
xml = "text/xml";
xsl = "text/xml";
txt = "text/plain; charset=utf-8";
js = "text/javascript";
css = "text/css";
};
local function preprocess_path(path)
if path:sub(1,1) ~= "/" then
path = "/"..path;
end
local level = 0;
for component in path:gmatch("([^/]+)/") do
if component == ".." then
level = level - 1;
elseif component ~= "." then
level = level + 1;
end
if level < 0 then
return nil;
end
end
return path;
end
function serve_file(path)
local f, err = open(http_base..path, "rb");
if not f then return response_404; end
local data = f:read("*a");
f:close();
if not data then
return response_403;
end
local ext = path:match("%.([^.]*)$");
local mime = mime_map[ext]; -- Content-Type should be nil when not known
return {
headers = { ["Content-Type"] = mime; };
body = data;
};
end
local function handle_file_request(method, body, request)
local path = preprocess_path(request.url.path);
if not path then return response_400; end
path = path:gsub("^/[^/]+", ""); -- Strip /files/
return serve_file(path);
end
local function handle_default_request(method, body, request)
local path = preprocess_path(request.url.path);
if not path then return response_400; end
return serve_file(path);
end
local ports = config.get(module.host, "core", "http_ports") or { 5280 };
httpserver.set_default_handler(handle_default_request);
httpserver.new_from_config(ports, handle_file_request, { base = "files" });
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