mod_posix: Move everything to util.startup
This allows greater control over the order of events.
Notably, the internal ordering between daemonization, initialization of
libunbound and setup of signal handling is sensitive.
libunbound starts a separate thread for processing DNS requests.
If this thread is started before signal handling has been set up, it
will not inherit the signal handlers and instead behave as it would have
before signal handlers were set up, i.e. cause the whole process to
immediately exit.
libunbound is usually initialized on the first DNS request, usually
triggered by an outgoing s2s connection attempt.
If daemonization happens before signals have been set up, signals may
not be processed at all.
-- XEP-0401: Easy User Onboarding
local dataforms = require "prosody.util.dataforms";
local datetime = require "prosody.util.datetime";
local split_jid = require "prosody.util.jid".split;
local new_adhoc = module:require("adhoc").new;
-- Whether local users can invite other users to create an account on this server
local allow_user_invites = module:get_option_boolean("allow_user_invites", false);
-- Who can see and use the contact invite command. It is strongly recommended to
-- keep this available to all local users. To allow/disallow invite-registration
-- on the server, use the option above instead.
local allow_contact_invites = module:get_option_boolean("allow_contact_invites", true);
module:default_permission(allow_user_invites and "prosody:registered" or "prosody:admin", ":invite-users");
local invites;
if prosody.shutdown then -- COMPAT hack to detect prosodyctl
invites = module:depends("invites");
end
local invite_result_form = dataforms.new({
title = "Your invite has been created",
{
name = "url" ;
var = "landing-url";
label = "Invite web page";
desc = "Share this link";
},
{
name = "uri";
label = "Invite URI";
desc = "This alternative link can be opened with some XMPP clients";
},
{
name = "expire";
label = "Invite valid until";
},
});
-- This is for checking if the specified JID may create invites
-- that allow people to register accounts on this host.
local function may_invite_new_users(context)
return module:may(":invite-users", context);
end
module:depends("adhoc");
-- This command is available to all local users, even if allow_user_invites = false
-- If allow_user_invites is false, creating an invite still works, but the invite will
-- not be valid for registration on the current server, only for establishing a roster
-- subscription.
module:provides("adhoc", new_adhoc("Create new contact invite", "urn:xmpp:invite#invite",
function (_, data)
local username, host = split_jid(data.from);
if host ~= module.host then
return {
status = "completed";
error = {
message = "This command is only available to users of "..module.host;
};
};
end
local invite = invites.create_contact(username, may_invite_new_users(data), {
source = data.from
});
--TODO: check errors
return {
status = "completed";
form = {
layout = invite_result_form;
values = {
uri = invite.uri;
url = invite.landing_page;
expire = datetime.datetime(invite.expires);
};
};
};
end, allow_contact_invites and "local_user" or "admin"));
-- This is an admin-only command that creates a new invitation suitable for registering
-- a new account. It does not add the new user to the admin's roster.
module:provides("adhoc", new_adhoc("Create new account invite", "urn:xmpp:invite#create-account",
function (_, data)
local invite = invites.create_account(nil, {
source = data.from
});
--TODO: check errors
return {
status = "completed";
form = {
layout = invite_result_form;
values = {
uri = invite.uri;
url = invite.landing_page;
expire = datetime.datetime(invite.expires);
};
};
};
end, "admin"));