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jitsi/prosody/rootfs/prosody-plugins/mod_auth_cyrus.lua

@@ -0,0 +1,85 @@
+-- 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.
+--
+-- luacheck: ignore 212
+
+local log = require "util.logger".init("auth_cyrus");
+
+local usermanager_user_exists = require "core.usermanager".user_exists;
+
+local cyrus_service_realm = module:get_option("cyrus_service_realm");
+local cyrus_service_name = module:get_option("cyrus_service_name");
+local cyrus_application_name = module:get_option("cyrus_application_name");
+local require_provisioning = module:get_option("cyrus_require_provisioning") or false;
+local host_fqdn = module:get_option("cyrus_server_fqdn");
+
+prosody.unlock_globals(); --FIXME: Figure out why this is needed and
+						  -- why cyrussasl isn't caught by the sandbox
+local cyrus_new = module:require "sasl_cyrus".new;
+prosody.lock_globals();
+local new_sasl = function(realm)
+	return cyrus_new(
+		cyrus_service_realm or realm,
+		cyrus_service_name or "xmpp",
+		cyrus_application_name or "prosody",
+		host_fqdn
+	);
+end
+
+do -- diagnostic
+	local list;
+	for mechanism in pairs(new_sasl(module.host):mechanisms()) do
+		list = (not(list) and mechanism) or (list..", "..mechanism);
+	end
+	if not list then
+		module:log("error", "No Cyrus SASL mechanisms available");
+	else
+		module:log("debug", "Available Cyrus SASL mechanisms: %s", list);
+	end
+end
+
+local host = module.host;
+
+-- define auth provider
+local provider = {};
+log("debug", "initializing default authentication provider for host '%s'", host);
+
+function provider.test_password(username, password)
+	return nil, "Legacy auth not supported with Cyrus SASL.";
+end
+
+function provider.get_password(username)
+	return nil, "Passwords unavailable for Cyrus SASL.";
+end
+
+function provider.set_password(username, password)
+	return nil, "Passwords unavailable for Cyrus SASL.";
+end
+
+function provider.user_exists(username)
+	if require_provisioning then
+		return usermanager_user_exists(username, host);
+	end
+	return true;
+end
+
+function provider.create_user(username, password)
+	return nil, "Account creation/modification not available with Cyrus SASL.";
+end
+
+function provider.get_sasl_handler()
+	local handler = new_sasl(host);
+	if require_provisioning then
+		function handler.require_provisioning(username)
+			return usermanager_user_exists(username, host);
+		end
+	end
+	return handler;
+end
+
+module:provides("auth", provider);
+

jitsi/prosody/rootfs/prosody-plugins/mod_http_health.lua

@@ -0,0 +1,39 @@
+module:set_global();
+
+local ip = require "util.ip";
+
+local modulemanager = require "core.modulemanager";
+
+local permitted_ips = module:get_option_set("http_health_allow_ips", { "::1", "127.0.0.1" });
+local permitted_cidr = module:get_option_string("http_health_allow_cidr");
+
+local function is_permitted(request)
+	local ip_raw = request.ip;
+	if permitted_ips:contains(ip_raw) or
+	   (permitted_cidr and ip.match(ip.new_ip(ip_raw), ip.parse_cidr(permitted_cidr))) then
+		return true;
+	end
+	return false;
+end
+
+module:provides("http", {
+	route = {
+		GET = function(event)
+			local request = event.request;
+			if not is_permitted(request) then
+				return 403; -- Forbidden
+			end
+
+			for host in pairs(prosody.hosts) do
+				local mods = modulemanager.get_modules(host);
+				for _, mod in pairs(mods) do
+					if mod.module.status_type == "error" then
+						return { status_code = 500; headers = { content_type = "text/plain" }; body = "HAS ERRORS\n" };
+					end
+				end
+			end
+
+			return { status_code = 200; headers = { content_type = "text/plain" }; body = "OK\n" };
+		end;
+	};
+});

jitsi/prosody/rootfs/prosody-plugins/mod_muc_moderation.lua

@@ -0,0 +1,242 @@
+-- mod_muc_moderation
+--
+-- Copyright (C) 2015-2021 Kim Alvefur
+--
+-- This file is MIT licensed.
+--
+-- Implements: XEP-0425: Message Moderation
+--
+-- Imports
+local dt = require "util.datetime";
+local id = require "util.id";
+local jid = require "util.jid";
+local st = require "util.stanza";
+
+-- Plugin dependencies
+local mod_muc = module:depends "muc";
+
+local muc_util = module:require "muc/util";
+local valid_roles = muc_util.valid_roles;
+
+local muc_log_archive = module:open_store("muc_log", "archive");
+
+if not muc_log_archive.set then
+	module:log("warn", "Selected archive storage module does not support message replacement, no tombstones will be saved");
+end
+
+-- Namespaces
+local xmlns_fasten = "urn:xmpp:fasten:0";
+local xmlns_moderate = "urn:xmpp:message-moderate:0";
+local xmlns_moderate_1 = "urn:xmpp:message-moderate:1";
+local xmlns_occupant_id = "urn:xmpp:occupant-id:0";
+local xmlns_retract = "urn:xmpp:message-retract:0";
+local xmlns_retract_1 = "urn:xmpp:message-retract:1";
+
+-- Discovering support
+module:hook("muc-disco#info", function (event)
+	event.reply:tag("feature", { var = xmlns_moderate }):up();
+	event.reply:tag("feature", { var = xmlns_moderate_1 }):up();
+end);
+
+-- TODO error registry, requires Prosody 0.12+
+
+-- moderate : function (string, string, string, boolean, string) : boolean, enum, enum, string
+local function moderate(actor, room_jid, stanza_id, retract, reason)
+	local room_node = jid.split(room_jid);
+	local room = mod_muc.get_room_from_jid(room_jid);
+
+	-- Permissions is based on role, which is a property of a current occupant,
+	-- so check if the actor is an occupant, otherwise if they have a reserved
+	-- nickname that can be used to retrieve the role.
+	local actor_nick = room:get_occupant_jid(actor);
+	if not actor_nick then
+		local reserved_nickname = room:get_affiliation_data(jid.bare(actor), "reserved_nickname");
+		if reserved_nickname then
+			actor_nick = room.jid .. "/" .. reserved_nickname;
+		end
+	end
+
+	-- Retrieve their current role, iff they are in the room, otherwise what they
+	-- would have based on affiliation.
+	local affiliation = room:get_affiliation(actor);
+	local role = room:get_role(actor_nick) or room:get_default_role(affiliation);
+	if valid_roles[role or "none"] < valid_roles.moderator then
+		return false, "auth", "forbidden", "You need a role of at least 'moderator'";
+	end
+
+	-- Original stanza to base tombstone on
+	local original, err;
+	if muc_log_archive.get then
+		original, err = muc_log_archive:get(room_node, stanza_id);
+	else
+		-- COMPAT missing :get API
+		err = "item-not-found";
+		for i, item in muc_log_archive:find(room_node, { key = stanza_id, limit = 1 }) do
+			if i == stanza_id then
+				original, err = item, nil;
+			end
+		end
+	end
+
+	if not original then
+		if err == "item-not-found" then
+			return false, "modify", "item-not-found";
+		else
+			return false, "wait", "internal-server-error";
+		end
+	end
+
+	local actor_occupant = room:get_occupant_by_real_jid(actor) or room:new_occupant(jid.bare(actor), actor_nick);
+
+	local announcement = st.message({ from = room_jid, type = "groupchat", id = id.medium(), })
+		:tag("apply-to", { xmlns = xmlns_fasten, id = stanza_id })
+			:tag("moderated", { xmlns = xmlns_moderate, by = actor_nick })
+
+	if room.get_occupant_id then
+		-- This isn't a regular broadcast message going through the events occupant_id.lib hooks so we do this here
+		announcement:add_child(st.stanza("occupant-id", { xmlns = xmlns_occupant_id; id = room:get_occupant_id(actor_occupant) }));
+	end
+
+	if retract then
+		announcement:tag("retract", { xmlns = xmlns_retract }):up();
+	end
+
+	if reason then
+		announcement:text_tag("reason", reason);
+	end
+
+	local moderated_occupant_id = original:get_child("occupant-id", xmlns_occupant_id);
+	if room.get_occupant_id and moderated_occupant_id then
+		announcement:add_direct_child(moderated_occupant_id);
+	end
+
+	-- XEP 0425 v0.3.0
+
+	announcement:reset();
+
+	if retract then
+		announcement:tag("retract", { xmlns = xmlns_retract_1; id = stanza_id })
+			:tag("moderated", { xmlns = xmlns_moderate_1 })
+			:tag("occupant-id", { xmlns = xmlns_occupant_id; id = room:get_occupant_id(actor_occupant) });
+		if reason then
+			announcement:up():up():text_tag("reason", reason);
+		end
+	end
+
+
+	local tombstone = nil;
+	if muc_log_archive.set and retract then
+		tombstone = st.message({ from = original.attr.from, type = "groupchat", id = original.attr.id })
+			:tag("moderated", { xmlns = xmlns_moderate, by = actor_nick })
+				:tag("retracted", { xmlns = xmlns_retract, stamp = dt.datetime() }):up();
+
+		if reason then
+			tombstone:text_tag("reason", reason);
+		end
+
+		if room.get_occupant_id then
+			if actor_occupant then
+				tombstone:add_child(st.stanza("occupant-id", { xmlns = xmlns_occupant_id; id = room:get_occupant_id(actor_occupant) }));
+			end
+
+			if moderated_occupant_id then
+				-- Copy occupant id from moderated message
+				tombstone:add_direct_child(moderated_occupant_id);
+			end
+		end
+		tombstone:reset();
+	end
+
+	-- fire an event, that can be used to cancel the moderation, or modify stanzas.
+	local event = {
+		room = room;
+		announcement = announcement;
+		tombstone = tombstone;
+		stanza_id = stanza_id;
+		retract = retract;
+		reason = reason;
+		actor = actor;
+		actor_nick = actor_nick;
+	};
+	if module:fire_event("muc-moderate-message", event) then
+		-- TODO: allow to change the error message?
+		return false, "wait", "internal-server-error";
+	end
+
+	if tombstone then
+		local was_replaced = muc_log_archive:set(room_node, stanza_id, tombstone);
+		if not was_replaced then
+			return false, "wait", "internal-server-error";
+		end
+	end
+
+	-- Done, tell people about it
+	module:log("info", "Message with id '%s' in room %s moderated by %s, reason: %s", stanza_id, room_jid, actor, reason);
+	room:broadcast_message(announcement);
+
+	return true;
+end
+
+-- Main handling
+module:hook("iq-set/bare/" .. xmlns_fasten .. ":apply-to", function (event)
+	local stanza, origin = event.stanza, event.origin;
+
+	local actor = stanza.attr.from;
+	local room_jid = stanza.attr.to;
+
+	-- Collect info we need
+	local apply_to = stanza.tags[1];
+	local moderate_tag = apply_to:get_child("moderate", xmlns_moderate);
+	if not moderate_tag then return end -- some other kind of fastening?
+
+	local reason = moderate_tag:get_child_text("reason");
+	local retract = moderate_tag:get_child("retract", xmlns_retract);
+
+	local stanza_id = apply_to.attr.id;
+
+	local ok, error_type, error_condition, error_text = moderate(actor, room_jid, stanza_id, retract, reason);
+	if not ok then
+		origin.send(st.error_reply(stanza, error_type, error_condition, error_text));
+		return true;
+	end
+
+	origin.send(st.reply(stanza));
+	return true;
+end);
+
+module:hook("iq-set/bare/" .. xmlns_moderate_1 .. ":moderate", function (event)
+	local stanza, origin = event.stanza, event.origin;
+
+	local actor = stanza.attr.from;
+	local room_jid = stanza.attr.to;
+
+	local moderate_tag = stanza:get_child("moderate", xmlns_moderate_1)
+	local retract_tag = moderate_tag:get_child("retract", xmlns_retract_1)
+
+	if not retract_tag then return end -- other kind of moderation?
+
+	local reason = moderate_tag:get_child_text("reason");
+	local stanza_id = moderate_tag.attr.id
+
+	local ok, error_type, error_condition, error_text = moderate(
+		actor,
+		room_jid,
+		stanza_id,
+		retract_tag,
+		reason
+	);
+	if not ok then
+		origin.send(st.error_reply(stanza, error_type, error_condition, error_text));
+		return true;
+	end
+
+	origin.send(st.reply(stanza));
+	return true;
+end);
+
+module:hook("muc-message-is-historic", function (event)
+	-- Ensure moderation messages are stored
+	if event.stanza.attr.from == event.room.jid then
+		return event.stanza:get_child("apply-to", xmlns_fasten);
+	end
+end, 1);

jitsi/prosody/rootfs/prosody-plugins/sasl_cyrus.lua

@@ -0,0 +1,169 @@
+-- sasl.lua v0.4
+-- Copyright (C) 2008-2009 Tobias Markmann
+--
+--    All rights reserved.
+--
+--    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+--
+--        * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+--        * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+--        * Neither the name of Tobias Markmann nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+--
+--    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+local cyrussasl = require "cyrussasl";
+local log = require "util.logger".init("sasl_cyrus");
+
+local setmetatable = setmetatable
+
+local pcall = pcall
+local s_match, s_gmatch = string.match, string.gmatch
+
+local sasl_errstring = {
+	-- SASL result codes --
+	[1]   = "another step is needed in authentication";
+	[0]   = "successful result";
+	[-1]  = "generic failure";
+	[-2]  = "memory shortage failure";
+	[-3]  = "overflowed buffer";
+	[-4]  = "mechanism not supported";
+	[-5]  = "bad protocol / cancel";
+	[-6]  = "can't request info until later in exchange";
+	[-7]  = "invalid parameter supplied";
+	[-8]  = "transient failure (e.g., weak key)";
+	[-9]  = "integrity check failed";
+	[-12] = "SASL library not initialized";
+
+	-- client only codes --
+	[2]   = "needs user interaction";
+	[-10] = "server failed mutual authentication step";
+	[-11] = "mechanism doesn't support requested feature";
+
+	-- server only codes --
+	[-13] = "authentication failure";
+	[-14] = "authorization failure";
+	[-15] = "mechanism too weak for this user";
+	[-16] = "encryption needed to use mechanism";
+	[-17] = "One time use of a plaintext password will enable requested mechanism for user";
+	[-18] = "passphrase expired, has to be reset";
+	[-19] = "account disabled";
+	[-20] = "user not found";
+	[-23] = "version mismatch with plug-in";
+	[-24] = "remote authentication server unavailable";
+	[-26] = "user exists, but no verifier for user";
+
+	-- codes for password setting --
+	[-21] = "passphrase locked";
+	[-22] = "requested change was not needed";
+	[-27] = "passphrase is too weak for security policy";
+	[-28] = "user supplied passwords not permitted";
+};
+setmetatable(sasl_errstring, { __index = function() return "undefined error!" end });
+
+local _ENV = nil;
+-- luacheck: std none
+
+local method = {};
+method.__index = method;
+local initialized = false;
+
+local function init(service_name)
+	if not initialized then
+		local st, errmsg = pcall(cyrussasl.server_init, service_name);
+		if st then
+			initialized = true;
+		else
+			log("error", "Failed to initialize Cyrus SASL: %s", errmsg);
+		end
+	end
+end
+
+-- create a new SASL object which can be used to authenticate clients
+-- host_fqdn may be nil in which case gethostname() gives the value.
+--      For GSSAPI, this determines the hostname in the service ticket (after
+--      reverse DNS canonicalization, only if [libdefaults] rdns = true which
+--      is the default).
+local function new(realm, service_name, app_name, host_fqdn)
+
+	init(app_name or service_name);
+
+	local st, ret = pcall(cyrussasl.server_new, service_name, host_fqdn, realm, nil, nil)
+	if not st then
+		log("error", "Creating SASL server connection failed: %s", ret);
+		return nil;
+	end
+
+	local sasl_i = { realm = realm, service_name = service_name, cyrus = ret };
+
+	if cyrussasl.set_canon_cb then
+		local c14n_cb = function (user)
+			local node = s_match(user, "^([^@]+)");
+			log("debug", "Canonicalizing username %s to %s", user, node)
+			return node
+		end
+		cyrussasl.set_canon_cb(sasl_i.cyrus, c14n_cb);
+	end
+
+	cyrussasl.setssf(sasl_i.cyrus, 0, 0xffffffff)
+	local mechanisms = {};
+	local cyrus_mechs = cyrussasl.listmech(sasl_i.cyrus, nil, "", " ", "");
+	for w in s_gmatch(cyrus_mechs, "[^ ]+") do
+		mechanisms[w] = true;
+	end
+	sasl_i.mechs = mechanisms;
+	return setmetatable(sasl_i, method);
+end
+
+-- get a fresh clone with the same realm and service name
+function method:clean_clone()
+	return new(self.realm, self.service_name)
+end
+
+-- get a list of possible SASL mechanims to use
+function method:mechanisms()
+	return self.mechs;
+end
+
+-- select a mechanism to use
+function method:select(mechanism)
+	if not self.selected and self.mechs[mechanism] then
+		self.selected = mechanism;
+		return true;
+	end
+end
+
+-- feed new messages to process into the library
+function method:process(message)
+	local err;
+	local data;
+
+	if not self.first_step_done then
+		err, data = cyrussasl.server_start(self.cyrus, self.selected, message or "")
+		self.first_step_done = true;
+	else
+		err, data = cyrussasl.server_step(self.cyrus, message or "")
+	end
+
+	self.username = cyrussasl.get_username(self.cyrus)
+
+	if (err == 0) then -- SASL_OK
+		if self.require_provisioning and not self.require_provisioning(self.username) then
+			return "failure", "not-authorized", "User authenticated successfully, but not provisioned for XMPP";
+		end
+		return "success", data
+	elseif (err == 1) then -- SASL_CONTINUE
+		return "challenge", data
+	elseif (err == -4) then -- SASL_NOMECH
+		log("debug", "SASL mechanism not available from remote end")
+		return "failure", "invalid-mechanism", "SASL mechanism not available"
+	elseif (err == -13) then -- SASL_BADAUTH
+		return "failure", "not-authorized", sasl_errstring[err];
+	else
+		log("debug", "Got SASL error condition %d: %s", err, sasl_errstring[err]);
+		return "failure", "undefined-condition", sasl_errstring[err];
+	end
+end
+
+return {
+	new = new;
+};