File

plugins/mod_user_account_management.lua @ 10787:459efb1afbfe

mod_admin_telnet: Pretty-print values returned from commands This makes it much nicer to inspect Prosody internals. Existing textual status messages from commands are not serialized to preserve existing behavior. Explicit serialization of configuration is kept in order to make it clear that returned strings are serialized strings that would look like what's actually in the config file. The default maxdepth of 2 seems ought to be an okay default, balanced between showing enough structure to continue exploring and DoS-ing your terminal. Thanks to Ge0rG for the motivation to finally do this.
author Kim Alvefur <zash@zash.se>
date Wed, 29 Apr 2020 22:23:05 +0200
parent 10382:fcdc65bc6697
child 12977:74b9e05af71e
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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 st = require "util.stanza";
local usermanager_set_password = require "core.usermanager".set_password;
local usermanager_delete_user = require "core.usermanager".delete_user;
local nodeprep = require "util.encodings".stringprep.nodeprep;
local jid_bare = require "util.jid".bare;

local compat = module:get_option_boolean("registration_compat", true);

module:add_feature("jabber:iq:register");

-- Password change and account deletion handler
local function handle_registration_stanza(event)
	local session, stanza = event.origin, event.stanza;
	local log = session.log or module._log;

	local query = stanza.tags[1];
	if stanza.attr.type == "get" then
		local reply = st.reply(stanza);
		reply:tag("query", {xmlns = "jabber:iq:register"})
			:tag("registered"):up()
			:tag("username"):text(session.username):up()
			:tag("password"):up();
		session.send(reply);
	else -- stanza.attr.type == "set"
		if query.tags[1] and query.tags[1].name == "remove" then
			local username, host = session.username, session.host;

			-- This one weird trick sends a reply to this stanza before the user is deleted
			local old_session_close = session.close;
			session.close = function(self, ...)
				self.send(st.reply(stanza));
				return old_session_close(self, ...);
			end

			local ok, err = usermanager_delete_user(username, host);

			if not ok then
				log("debug", "Removing user account %s@%s failed: %s", username, host, err);
				session.close = old_session_close;
				session.send(st.error_reply(stanza, "cancel", "service-unavailable", err));
				return true;
			end

			log("info", "User removed their account: %s@%s", username, host);
			module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
		else
			local username = query:get_child_text("username");
			local password = query:get_child_text("password");
			if username and password then
				username = nodeprep(username);
				if username == session.username then
					if usermanager_set_password(username, password, session.host, session.resource) then
						session.send(st.reply(stanza));
					else
						-- TODO unable to write file, file may be locked, etc, what's the correct error?
						session.send(st.error_reply(stanza, "wait", "internal-server-error"));
					end
				else
					session.send(st.error_reply(stanza, "modify", "bad-request"));
				end
			else
				session.send(st.error_reply(stanza, "modify", "bad-request"));
			end
		end
	end
	return true;
end

module:hook("iq/self/jabber:iq:register:query", handle_registration_stanza);
if compat then
	module:hook("iq/host/jabber:iq:register:query", function (event)
		local session, stanza = event.origin, event.stanza;
		if session.type == "c2s" and jid_bare(stanza.attr.to) == session.host then
			return handle_registration_stanza(event);
		end
	end);
end