view mod_invites_adhoc/mod_invites_adhoc.lua @ 5401:c8d04ac200fc

mod_http_oauth2: Reject loopback URIs as client_uri This really should be a proper website with info, https://localhost is not good enough. Ideally we'd validate that it's got proper DNS and is actually reachable, but triggering HTTP or even DNS lookups seems like it would carry abuse potential that would best to avoid.
author Kim Alvefur <zash@zash.se>
date Tue, 02 May 2023 16:20:55 +0200
parents fa99279f9d40
children f9cecbd03e11
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-- XEP-0401: Easy User Onboarding
local dataforms = require "util.dataforms";
local datetime = require "util.datetime";
local split_jid = require "util.jid".split;
local usermanager = require "core.usermanager";

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);

-- These options are deprecated since module:may()
local allow_user_invite_roles = module:get_option_set("allow_user_invites_by_roles", {});
local deny_user_invite_roles = module:get_option_set("deny_user_invites_by_roles", {});

if module.may then
	if allow_user_invites then
		module:default_permission("prosody:user", ":invite-new-users");
	end
	if not allow_user_invite_roles:empty() or not deny_user_invite_roles:empty() then
		return error("allow_user_invites_by_roles and deny_user_invites_by_roles are deprecated options");
	end
end

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(jid, context)
	if module.may then
		return module:may(":invite-new-users", context);
	elseif usermanager.get_roles then -- COMPAT w/0.12
		local user_roles = usermanager.get_roles(jid, module.host);
		if not user_roles then return; end
		if user_roles["prosody:admin"] then
			return true;
		end
		if allow_user_invite_roles then
			for allowed_role in allow_user_invite_roles do
				if user_roles[allowed_role] then
					return true;
				end
			end
		end
		if deny_user_invite_roles then
			for denied_role in deny_user_invite_roles do
				if user_roles[denied_role] then
					return false;
				end
			end
		end
	elseif usermanager.is_admin(jid, module.host) then -- COMPAT w/0.11
		return true; -- Admins may always create invitations
	end
	-- No role matches, so whatever the default is
	return allow_user_invites;
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.from, 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"));