util.signal: Add support for signalfd(2) on Linux
signalfd allows handling signal events using the same method as sockets,
via file descriptors. Thus all signal dispatch can go through the same
main event loop as everything else, removing need for thread-scary
signal handling where execution would just jump to the signal handler
regardless of the state of Lua, and needing to keep track of Lua
states/threads.
-- 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.
--
module:depends("http");
local open = io.open;
local fileserver = require"prosody.net.http.files";
local base_path = module:get_option_path("http_files_dir", module:get_option_path("http_path"));
local cache_size = module:get_option_integer("http_files_cache_size", 128, 1);
local cache_max_file_size = module:get_option_integer("http_files_cache_max_file_size", 4096, 1);
local dir_indices = module:get_option_array("http_index_files", { "index.html", "index.htm" });
local directory_index = module:get_option_boolean("http_dir_listing");
local mime_map = module:shared("/*/http_files/mime").types;
if not mime_map then
mime_map = {
html = "text/html", htm = "text/html",
xml = "application/xml",
txt = "text/plain",
css = "text/css",
js = "application/javascript",
png = "image/png",
gif = "image/gif",
jpeg = "image/jpeg", jpg = "image/jpeg",
svg = "image/svg+xml",
};
module:shared("/*/http_files/mime").types = mime_map;
local mime_types, err = open(module:get_option_path("mime_types_file", "/etc/mime.types", "config"), "r");
if not mime_types then
module:log("debug", "Could not open MIME database: %s", err);
else
local mime_data = mime_types:read("*a");
mime_types:close();
setmetatable(mime_map, {
__index = function(t, ext)
local typ = mime_data:match("\n(%S+)[^\n]*%s"..(ext:lower()).."%s") or "application/octet-stream";
t[ext] = typ;
return typ;
end
});
end
end
local function get_calling_module()
local info = debug.getinfo(3, "S");
if not info then return "An unknown module"; end
return info.source:match"mod_[^/\\.]+" or info.short_src;
end
-- COMPAT -- TODO deprecate
function serve(opts)
if type(opts) ~= "table" then -- assume path string
opts = { path = opts };
end
if opts.directory_index == nil then
opts.directory_index = directory_index;
end
if opts.mime_map == nil then
opts.mime_map = mime_map;
end
if opts.cache_size == nil then
opts.cache_size = cache_size;
end
if opts.cache_max_file_size == nil then
opts.cache_max_file_size = cache_max_file_size;
end
if opts.index_files == nil then
opts.index_files = dir_indices;
end
module:log("warn", "%s should be updated to use 'prosody.net.http.files' instead of mod_http_files", get_calling_module());
return fileserver.serve(opts);
end
function wrap_route(routes)
module:log("debug", "%s should be updated to use 'prosody.net.http.files' instead of mod_http_files", get_calling_module());
for route,handler in pairs(routes) do
if type(handler) ~= "function" then
routes[route] = fileserver.serve(handler);
end
end
return routes;
end
module:provides("http", {
route = {
["GET /*"] = fileserver.serve({
path = base_path;
directory_index = directory_index;
mime_map = mime_map;
cache_size = cache_size;
cache_max_file_size = cache_max_file_size;
index_files = dir_indices;
});
};
});