diff options
Diffstat (limited to 'plugins/muc')
| -rw-r--r-- | plugins/muc/config_form_sections.lib.lua | 27 | ||||
| -rw-r--r-- | plugins/muc/description.lib.lua | 52 | ||||
| -rw-r--r-- | plugins/muc/hidden.lib.lua | 54 | ||||
| -rw-r--r-- | plugins/muc/history.lib.lua | 210 | ||||
| -rw-r--r-- | plugins/muc/language.lib.lua | 51 | ||||
| -rw-r--r-- | plugins/muc/lock.lib.lua | 62 | ||||
| -rw-r--r-- | plugins/muc/members_only.lib.lua | 165 | ||||
| -rw-r--r-- | plugins/muc/mod_muc.lua | 670 | ||||
| -rw-r--r-- | plugins/muc/moderated.lib.lua | 54 | ||||
| -rw-r--r-- | plugins/muc/muc.lib.lua | 2287 | ||||
| -rw-r--r-- | plugins/muc/name.lib.lua | 48 | ||||
| -rw-r--r-- | plugins/muc/occupant.lib.lua | 85 | ||||
| -rw-r--r-- | plugins/muc/password.lib.lua | 80 | ||||
| -rw-r--r-- | plugins/muc/persistent.lib.lua | 58 | ||||
| -rw-r--r-- | plugins/muc/register.lib.lua | 195 | ||||
| -rw-r--r-- | plugins/muc/request.lib.lua | 132 | ||||
| -rw-r--r-- | plugins/muc/subject.lib.lua | 119 | ||||
| -rw-r--r-- | plugins/muc/util.lib.lua | 67 | ||||
| -rw-r--r-- | plugins/muc/whois.lib.lua | 66 |
19 files changed, 3286 insertions, 1196 deletions
diff --git a/plugins/muc/config_form_sections.lib.lua b/plugins/muc/config_form_sections.lib.lua new file mode 100644 index 00000000..34be5dc6 --- /dev/null +++ b/plugins/muc/config_form_sections.lib.lua @@ -0,0 +1,27 @@ +module:hook("muc-config-form", function(event) + table.insert(event.form, { + type = "fixed"; + value = "Room information"; + }); +end, 100); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + type = "fixed"; + value = "Access to the room"; + }); +end, 90); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + type = "fixed"; + value = "Permissions in the room"; + }); +end, 80); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + type = "fixed"; + value = "Other options"; + }); +end, 70); diff --git a/plugins/muc/description.lib.lua b/plugins/muc/description.lib.lua new file mode 100644 index 00000000..eeda83d2 --- /dev/null +++ b/plugins/muc/description.lib.lua @@ -0,0 +1,52 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local function get_description(room) + return room._data.description; +end + +local function set_description(room, description) + if description == "" then description = nil; end + if get_description(room) == description then return false; end + room._data.description = description; + return true; +end + +local function add_disco_form(event) + table.insert(event.form, { + name = "muc#roominfo_description"; + label = "Description"; + value = ""; + }); + event.formdata["muc#roominfo_description"] = get_description(event.room); +end + +local function add_form_option(event) + table.insert(event.form, { + name = "muc#roomconfig_roomdesc"; + type = "text-single"; + label = "Description"; + desc = "A brief description of the room"; + value = get_description(event.room) or ""; + }); +end + +module:hook("muc-disco#info", add_disco_form); +module:hook("muc-config-form", add_form_option, 100-2); + +module:hook("muc-config-submitted/muc#roomconfig_roomdesc", function(event) + if set_description(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +return { + get = get_description; + set = set_description; +}; diff --git a/plugins/muc/hidden.lib.lua b/plugins/muc/hidden.lib.lua new file mode 100644 index 00000000..153df21a --- /dev/null +++ b/plugins/muc/hidden.lib.lua @@ -0,0 +1,54 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local restrict_public = not module:get_option_boolean("muc_room_allow_public", true); +local um_is_admin = require "core.usermanager".is_admin; + +local function get_hidden(room) + return room._data.hidden; +end + +local function set_hidden(room, hidden) + hidden = hidden and true or nil; + if get_hidden(room) == hidden then return false; end + room._data.hidden = hidden; + return true; +end + +module:hook("muc-config-form", function(event) + if restrict_public and not um_is_admin(event.actor, module.host) then + -- Don't show option if public rooms are restricted and user is not admin of this host + return; + end + table.insert(event.form, { + name = "muc#roomconfig_publicroom"; + type = "boolean"; + label = "Include room information in public lists"; + desc = "Enable this to allow people to find the room"; + value = not get_hidden(event.room); + }); +end, 100-9); + +module:hook("muc-config-submitted/muc#roomconfig_publicroom", function(event) + if restrict_public and not um_is_admin(event.actor, module.host) then + return; -- Not allowed + end + if set_hidden(event.room, not event.value) then + event.status_codes["104"] = true; + end +end); + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = get_hidden(event.room) and "muc_hidden" or "muc_public"}):up(); +end); + +return { + get = get_hidden; + set = set_hidden; +}; diff --git a/plugins/muc/history.lib.lua b/plugins/muc/history.lib.lua new file mode 100644 index 00000000..445aacb9 --- /dev/null +++ b/plugins/muc/history.lib.lua @@ -0,0 +1,210 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local gettime = os.time; +local datetime = require "util.datetime"; +local st = require "util.stanza"; + +local default_history_length = 20; +local max_history_length = module:get_option_number("max_history_messages", math.huge); + +local function set_max_history_length(_max_history_length) + max_history_length = _max_history_length or math.huge; +end + +local function get_historylength(room) + return math.min(room._data.history_length or default_history_length, max_history_length); +end + +local function set_historylength(room, length) + if length then + length = assert(tonumber(length), "Length not a valid number"); + end + if length == default_history_length then length = nil; end + room._data.history_length = length; + return true; +end + +-- Fix for clients who don't support XEP-0045 correctly +-- Default number of history messages the room returns +local function get_defaulthistorymessages(room) + return room._data.default_history_messages or default_history_length; +end +local function set_defaulthistorymessages(room, number) + number = math.min(tonumber(number) or default_history_length, room._data.history_length or default_history_length); + if number == default_history_length then + number = nil; + end + room._data.default_history_messages = number; +end + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + name = "muc#roomconfig_historylength"; + type = "text-single"; + label = "Maximum number of history messages returned by room"; + desc = "Specify the maximum number of previous messages that should be sent to users when they join the room"; + value = tostring(get_historylength(event.room)); + }); + table.insert(event.form, { + name = 'muc#roomconfig_defaulthistorymessages', + type = 'text-single', + label = 'Default number of history messages returned by room', + desc = "Specify the number of previous messages sent to new users when they join the room"; + value = tostring(get_defaulthistorymessages(event.room)) + }); +end, 70-5); + +module:hook("muc-config-submitted/muc#roomconfig_historylength", function(event) + if set_historylength(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +module:hook("muc-config-submitted/muc#roomconfig_defaulthistorymessages", function(event) + if set_defaulthistorymessages(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +local function parse_history(stanza) + local x_tag = stanza:get_child("x", "http://jabber.org/protocol/muc"); + local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc"); + if not history_tag then + return nil, nil, nil; + end + + local maxchars = tonumber(history_tag.attr.maxchars); + + local maxstanzas = tonumber(history_tag.attr.maxstanzas); + + -- messages received since the UTC datetime specified + local since = history_tag.attr.since; + if since then + since = datetime.parse(since); + end + + -- messages received in the last "X" seconds. + local seconds = tonumber(history_tag.attr.seconds); + if seconds then + seconds = gettime() - seconds; + if since then + since = math.max(since, seconds); + else + since = seconds; + end + end + + return maxchars, maxstanzas, since; +end + +module:hook("muc-get-history", function(event) + local room = event.room; + local history = room._history; -- send discussion history + if not history then return nil end + local history_len = #history; + + local to = event.to; + local maxchars = event.maxchars; + local maxstanzas = event.maxstanzas or history_len; + local since = event.since; + local n = 0; + local charcount = 0; + for i=history_len,1,-1 do + local entry = history[i]; + if maxchars then + if not entry.chars then + entry.stanza.attr.to = ""; + entry.chars = #tostring(entry.stanza); + end + charcount = charcount + entry.chars + #to; + if charcount > maxchars then break; end + end + if since and since > entry.timestamp then break; end + if n + 1 > maxstanzas then break; end + n = n + 1; + end + + local i = history_len-n+1 + function event.next_stanza() + if i > history_len then return nil end + local entry = history[i]; + local msg = entry.stanza; + msg.attr.to = to; + i = i + 1; + return msg; + end + return true; +end, -1); + +local function send_history(room, stanza) + local maxchars, maxstanzas, since = parse_history(stanza); + if not(maxchars or maxstanzas or since) then + maxstanzas = get_defaulthistorymessages(room); + end + local event = { + room = room; + stanza = stanza; + to = stanza.attr.from; -- `to` is required to calculate the character count for `maxchars` + maxchars = maxchars, + maxstanzas = maxstanzas, + since = since; + next_stanza = function() end; -- events should define this iterator + }; + module:fire_event("muc-get-history", event); + for msg in event.next_stanza, event do + room:route_stanza(msg); + end +end + +-- Send history on join +module:hook("muc-occupant-session-new", function(event) + send_history(event.room, event.stanza); +end, 50); -- Before subject(20) + +-- add to history +module:hook("muc-add-history", function(event) + local room = event.room + local history = room._history; + if not history then history = {}; room._history = history; end + local stanza = st.clone(event.stanza); + stanza.attr.to = ""; + local ts = gettime(); + local stamp = datetime.datetime(ts); + stanza:tag("delay", { -- XEP-0203 + xmlns = "urn:xmpp:delay", from = module.host, stamp = stamp + }):up(); + stanza:tag("x", { -- XEP-0091 (deprecated) + xmlns = "jabber:x:delay", from = module.host, stamp = datetime.legacy() + }):up(); + local entry = { stanza = stanza, timestamp = ts }; + table.insert(history, entry); + while #history > get_historylength(room) do table.remove(history, 1) end + return true; +end, -1); + +-- Have a single muc-add-history event, so that plugins can mark it +-- as handled without stopping other muc-broadcast-message handlers +module:hook("muc-broadcast-message", function(event) + if module:fire_event("muc-message-is-historic", event) then + module:fire_event("muc-add-history", event); + end +end); + +module:hook("muc-message-is-historic", function (event) + return event.stanza:get_child("body"); +end, -1); + +return { + set_max_length = set_max_history_length; + parse_history = parse_history; + send = send_history; + get_length = get_historylength; + set_length = set_historylength; +}; diff --git a/plugins/muc/language.lib.lua b/plugins/muc/language.lib.lua new file mode 100644 index 00000000..ee80806b --- /dev/null +++ b/plugins/muc/language.lib.lua @@ -0,0 +1,51 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local function get_language(room) + return room._data.language; +end + +local function set_language(room, language) + if language == "" then language = nil; end + if get_language(room) == language then return false; end + room._data.language = language; + return true; +end + +local function add_disco_form(event) + table.insert(event.form, { + name = "muc#roominfo_lang"; + value = ""; + }); + event.formdata["muc#roominfo_lang"] = get_language(event.room); +end + +local function add_form_option(event) + table.insert(event.form, { + name = "muc#roomconfig_lang"; + label = "Language tag for room (e.g. 'en', 'de', 'fr' etc.)"; + type = "text-single"; + desc = "Indicate the primary language spoken in this room"; + value = get_language(event.room) or ""; + }); +end + +module:hook("muc-disco#info", add_disco_form); +module:hook("muc-config-form", add_form_option, 100-3); + +module:hook("muc-config-submitted/muc#roomconfig_lang", function(event) + if set_language(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +return { + get = get_language; + set = set_language; +}; diff --git a/plugins/muc/lock.lib.lua b/plugins/muc/lock.lib.lua new file mode 100644 index 00000000..062ab615 --- /dev/null +++ b/plugins/muc/lock.lib.lua @@ -0,0 +1,62 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local st = require "util.stanza"; + +local lock_rooms = module:get_option_boolean("muc_room_locking", true); +local lock_room_timeout = module:get_option_number("muc_room_lock_timeout", 300); + +local function lock(room) + module:fire_event("muc-room-locked", {room = room;}); + room._data.locked = os.time() + lock_room_timeout; +end +local function unlock(room) + module:fire_event("muc-room-unlocked", {room = room;}); + room._data.locked = nil; +end +local function is_locked(room) + local ts = room._data.locked; + if ts then + if os.time() < ts then return true; end + unlock(room); + end + return false; +end + +if lock_rooms then + module:hook("muc-room-pre-create", function(event) + -- Older groupchat protocol doesn't lock + if not event.stanza:get_child("x", "http://jabber.org/protocol/muc") then return end + -- Lock room at creation + local room = event.room; + lock(room); + end, 10); +end + +-- Don't let users into room while it is locked +module:hook("muc-occupant-pre-join", function(event) + if not event.is_new_room and is_locked(event.room) then -- Deny entry + module:log("debug", "Room is locked, denying entry"); + event.origin.send(st.error_reply(event.stanza, "cancel", "item-not-found")); + return true; + end +end, -30); + +-- When config is submitted; unlock the room +module:hook("muc-config-submitted", function(event) + if is_locked(event.room) then + unlock(event.room); + end +end, -1); + +return { + lock = lock; + unlock = unlock; + is_locked = is_locked; +}; diff --git a/plugins/muc/members_only.lib.lua b/plugins/muc/members_only.lib.lua new file mode 100644 index 00000000..4194c5c7 --- /dev/null +++ b/plugins/muc/members_only.lib.lua @@ -0,0 +1,165 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local st = require "util.stanza"; + +local muc_util = module:require "muc/util"; +local valid_affiliations = muc_util.valid_affiliations; + +local function get_members_only(room) + return room._data.members_only; +end + +local function set_members_only(room, members_only) + members_only = members_only and true or nil; + if room._data.members_only == members_only then return false; end + room._data.members_only = members_only; + if members_only then + --[[ + If as a result of a change in the room configuration the room type is + changed to members-only but there are non-members in the room, + the service MUST remove any non-members from the room and include a + status code of 322 in the presence unavailable stanzas sent to those users + as well as any remaining occupants. + ]] + local occupants_changed = {}; + for _, occupant in room:each_occupant() do + local affiliation = room:get_affiliation(occupant.bare_jid); + if valid_affiliations[affiliation or "none"] <= valid_affiliations.none then + occupant.role = nil; + room:save_occupant(occupant); + occupants_changed[occupant] = true; + end + end + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}) + :tag("status", {code="322"}):up(); + for occupant in pairs(occupants_changed) do + room:publicise_occupant_status(occupant, x); + module:fire_event("muc-occupant-left", {room = room; nick = occupant.nick; occupant = occupant;}); + end + end + return true; +end + +local function get_allow_member_invites(room) + return room._data.allow_member_invites; +end + +-- Allows members to invite new members into a members-only room, +-- effectively creating an invite-only room +local function set_allow_member_invites(room, allow_member_invites) + allow_member_invites = allow_member_invites and true or nil; + if room._data.allow_member_invites == allow_member_invites then return false; end + room._data.allow_member_invites = allow_member_invites; + return true; +end + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = get_members_only(event.room) and "muc_membersonly" or "muc_open"}):up(); + table.insert(event.form, { + name = "{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites"; + label = "Allow members to invite new members"; + type = "boolean"; + value = not not get_allow_member_invites(event.room); + }); +end); + + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + name = "muc#roomconfig_membersonly"; + type = "boolean"; + label = "Only allow members to join"; + desc = "Enable this to only allow access for room owners, admins and members"; + value = get_members_only(event.room); + }); + table.insert(event.form, { + name = "{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites"; + type = "boolean"; + label = "Allow members to invite new members"; + value = get_allow_member_invites(event.room); + }); +end, 90-3); + +module:hook("muc-config-submitted/muc#roomconfig_membersonly", function(event) + if set_members_only(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +module:hook("muc-config-submitted/{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites", function(event) + if set_allow_member_invites(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +-- No affiliation => role of "none" +module:hook("muc-get-default-role", function(event) + if not event.affiliation and get_members_only(event.room) then + return false; + end +end, 2); + +-- registration required for entering members-only room +module:hook("muc-occupant-pre-join", function(event) + local room = event.room; + if get_members_only(room) then + local stanza = event.stanza; + local affiliation = room:get_affiliation(stanza.attr.from); + if valid_affiliations[affiliation or "none"] <= valid_affiliations.none then + local reply = st.error_reply(stanza, "auth", "registration-required"):up(); + reply.tags[1].attr.code = "407"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end + end +end, -5); + +-- Invitation privileges in members-only rooms SHOULD be restricted to room admins; +-- if a member without privileges to edit the member list attempts to invite another user +-- the service SHOULD return a <forbidden/> error to the occupant +module:hook("muc-pre-invite", function(event) + local room = event.room; + if get_members_only(room) then + local stanza = event.stanza; + local inviter_affiliation = room:get_affiliation(stanza.attr.from) or "none"; + local required_affiliation = room._data.allow_member_invites and "member" or "admin"; + if valid_affiliations[inviter_affiliation] < valid_affiliations[required_affiliation] then + event.origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + end + end +end); + +-- When an invite is sent; add an affiliation for the invitee +module:hook("muc-invite", function(event) + local room = event.room; + if get_members_only(room) then + local stanza = event.stanza; + local invitee = stanza.attr.to; + local affiliation = room:get_affiliation(invitee); + local invited_unaffiliated = valid_affiliations[affiliation or "none"] <= valid_affiliations.none; + if invited_unaffiliated then + local from = stanza:get_child("x", "http://jabber.org/protocol/muc#user") + :get_child("invite").attr.from; + module:log("debug", "%s invited %s into members only room %s, granting membership", + from, invitee, room.jid); + -- This might fail; ignore for now + room:set_affiliation(true, invitee, "member", "Invited by " .. from); + room:save(); + end + end +end); + +return { + get = get_members_only; + set = set_members_only; + get_allow_member_invites = get_allow_member_invites; + set_allow_member_invites = set_allow_member_invites; +}; diff --git a/plugins/muc/mod_muc.lua b/plugins/muc/mod_muc.lua index 0f58bfbc..954bae92 100644 --- a/plugins/muc/mod_muc.lua +++ b/plugins/muc/mod_muc.lua @@ -6,288 +6,510 @@ -- COPYING file in the source package for more information. -- -local array = require "util.array"; +-- Exposed functions: +-- +-- create_room(jid) -> room +-- track_room(room) +-- delete_room(room) +-- forget_room(room) +-- get_room_from_jid(jid) -> room +-- each_room(live_only) -> () -> room [DEPRECATED] +-- all_rooms() -> room +-- live_rooms() -> room +-- shutdown_component() if module:get_host_type() ~= "component" then - error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0); + error("MUC should be loaded as a component, please see https://prosody.im/doc/components", 0); end -local muc_host = module:get_host(); -local muc_name = module:get_option_string("name", "Prosody Chatrooms"); -local restrict_room_creation = module:get_option("restrict_room_creation"); -if restrict_room_creation then - if restrict_room_creation == true then - restrict_room_creation = "admin"; - elseif restrict_room_creation ~= "admin" and restrict_room_creation ~= "local" then - restrict_room_creation = nil; - end +local muclib = module:require "muc"; +room_mt = muclib.room_mt; -- Yes, global. +new_room = muclib.new_room; + +local name = module:require "muc/name"; +room_mt.get_name = name.get; +room_mt.set_name = name.set; + +local description = module:require "muc/description"; +room_mt.get_description = description.get; +room_mt.set_description = description.set; + +local language = module:require "muc/language"; +room_mt.get_language = language.get; +room_mt.set_language = language.set; + +local hidden = module:require "muc/hidden"; +room_mt.get_hidden = hidden.get; +room_mt.set_hidden = hidden.set; +function room_mt:get_public() + return not self:get_hidden(); +end +function room_mt:set_public(public) + return self:set_hidden(not public); end -local lock_rooms = module:get_option_boolean("muc_room_locking", false); -local lock_room_timeout = module:get_option_number("muc_room_lock_timeout", 300); -local muclib = module:require "muc"; -local muc_new_room = muclib.new_room; +local password = module:require "muc/password"; +room_mt.get_password = password.get; +room_mt.set_password = password.set; + +local members_only = module:require "muc/members_only"; +room_mt.get_members_only = members_only.get; +room_mt.set_members_only = members_only.set; +room_mt.get_allow_member_invites = members_only.get_allow_member_invites; +room_mt.set_allow_member_invites = members_only.set_allow_member_invites; + +local moderated = module:require "muc/moderated"; +room_mt.get_moderated = moderated.get; +room_mt.set_moderated = moderated.set; + +local request = module:require "muc/request"; +room_mt.handle_role_request = request.handle_request; + +local persistent = module:require "muc/persistent"; +room_mt.get_persistent = persistent.get; +room_mt.set_persistent = persistent.set; + +local subject = module:require "muc/subject"; +room_mt.get_changesubject = subject.get_changesubject; +room_mt.set_changesubject = subject.set_changesubject; +room_mt.get_subject = subject.get; +room_mt.set_subject = subject.set; +room_mt.send_subject = subject.send; + +local history = module:require "muc/history"; +room_mt.send_history = history.send; +room_mt.get_historylength = history.get_length; +room_mt.set_historylength = history.set_length; + +local register = module:require "muc/register"; +room_mt.get_registered_nick = register.get_registered_nick; +room_mt.get_registered_jid = register.get_registered_jid; +room_mt.handle_register_iq = register.handle_register_iq; + local jid_split = require "util.jid".split; local jid_bare = require "util.jid".bare; local st = require "util.stanza"; -local uuid_gen = require "util.uuid".generate; +local cache = require "util.cache"; local um_is_admin = require "core.usermanager".is_admin; -local hosts = prosody.hosts; - -rooms = {}; -local rooms = rooms; -local persistent_rooms_storage = module:open_store("persistent"); -local persistent_rooms, err = persistent_rooms_storage:get(); -if not persistent_rooms then - if err then - module:log("error", "Error loading list of persistent rooms from storage. Reload mod_muc or restart to recover."); - error("Storage error: "..err); - end - module:log("debug", "No persistent rooms found in the database"); - persistent_rooms = {}; -end -local room_configs = module:open_store("config"); --- Configurable options -muclib.set_max_history_length(module:get_option_number("max_history_messages")); +module:require "muc/config_form_sections"; module:depends("disco"); -module:add_identity("conference", "text", muc_name); +module:add_identity("conference", "text", module:get_option_string("name", "Prosody Chatrooms")); module:add_feature("http://jabber.org/protocol/muc"); +module:depends "muc_unique" +module:require "muc/lock"; local function is_admin(jid) return um_is_admin(jid, module.host); end -room_mt = muclib.room_mt; -- Yes, global. -local _set_affiliation = room_mt.set_affiliation; -local _get_affiliation = room_mt.get_affiliation; -function muclib.room_mt:get_affiliation(jid) - if is_admin(jid) then return "owner"; end - return _get_affiliation(self, jid); -end -function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason) - if affiliation ~= "owner" and is_admin(jid) then return nil, "modify", "not-acceptable"; end - return _set_affiliation(self, actor, jid, affiliation, callback, reason); +do -- Monkey patch to make server admins room owners + local _get_affiliation = room_mt.get_affiliation; + function room_mt:get_affiliation(jid) + if is_admin(jid) then return "owner"; end + return _get_affiliation(self, jid); + end + + local _set_affiliation = room_mt.set_affiliation; + function room_mt:set_affiliation(actor, jid, affiliation, reason, data) + if affiliation ~= "owner" and is_admin(jid) then return nil, "modify", "not-acceptable"; end + return _set_affiliation(self, actor, jid, affiliation, reason, data); + end end -local function room_route_stanza(room, stanza) module:send(stanza); end -local function room_save(room, forced) +local persistent_rooms_storage = module:open_store("persistent"); +local persistent_rooms = module:open_store("persistent", "map"); +local room_configs = module:open_store("config"); +local room_state = module:open_store("state"); + +local room_items_cache = {}; + +local function room_save(room, forced, savestate) local node = jid_split(room.jid); - persistent_rooms[room.jid] = room._data.persistent; - if room._data.persistent then - local history = room._data.history; - room._data.history = nil; - local data = { - jid = room.jid; - _data = room._data; - _affiliations = room._affiliations; - }; - room_configs:set(node, data); - room._data.history = history; + local is_persistent = persistent.get(room); + room_items_cache[room.jid] = room:get_public() and room:get_name() or nil; + if is_persistent or savestate then + persistent_rooms:set(nil, room.jid, true); + local data, state = room:freeze(savestate); + room_state:set(node, state); + return room_configs:set(node, data); elseif forced then - room_configs:set(node, nil); - if not next(room._occupants) then -- Room empty - rooms[room.jid] = nil; - end + persistent_rooms:set(nil, room.jid, nil); + room_state:set(node, nil); + return room_configs:set(node, nil); end - if forced then persistent_rooms_storage:set(nil, persistent_rooms); end end -function create_room(jid, locked) - local room = muc_new_room(jid); - room.route_stanza = room_route_stanza; - room.save = room_save; - rooms[jid] = room; - if locked then - room.locked = true; - if lock_room_timeout and lock_room_timeout > 0 then - module:add_timer(lock_room_timeout, function () - if room.locked then - room:destroy(); -- Not unlocked in time - end - end); - end +local max_rooms = module:get_option_number("muc_max_rooms"); +local max_live_rooms = module:get_option_number("muc_room_cache_size", 100); + +local room_hit = module:measure("room_hit", "rate"); +local room_miss = module:measure("room_miss", "rate") +local room_eviction = module:measure("room_eviction", "rate"); +local rooms = cache.new(max_rooms or max_live_rooms, function (jid, room) + if max_rooms then + module:log("info", "Room limit of %d reached, no new rooms allowed", max_rooms); + return false; + end + module:log("debug", "Evicting room %s", jid); + room_eviction(); + room_items_cache[room.jid] = room:get_public() and room:get_name() or nil; + local ok, err = room_save(room, nil, true); -- Force to disk + if not ok then + module:log("error", "Failed to swap inactive room %s to disk: %s", jid, err); + return false; + end +end); + +-- Automatically destroy empty non-persistent rooms +module:hook("muc-occupant-left",function(event) + local room = event.room + if room.destroying then return end + if not room:has_occupant() and not persistent.get(room) then -- empty, non-persistent room + module:log("debug", "%q empty, destroying", room.jid); + module:fire_event("muc-room-destroyed", { room = room }); + end +end, -1); + +function track_room(room) + if rooms:set(room.jid, room) then + -- When room is created, over-ride 'save' method + room.save = room_save; + return room; end - module:fire_event("muc-room-created", { room = room }); - return room; + -- Resource limit reached + return false; +end + +local function handle_broken_room(room, origin, stanza) + module:log("debug", "Returning error from broken room %s", room.jid); + origin.send(st.error_reply(stanza, "wait", "internal-server-error")); + return true; end -local persistent_errors = false; -for jid in pairs(persistent_rooms) do +local function restore_room(jid) local node = jid_split(jid); local data, err = room_configs:get(node); if data then - local room = create_room(jid); - room._data = data._data; - room._affiliations = data._affiliations; - elseif not err then -- missing room data - persistent_rooms[jid] = nil; - module:log("error", "Missing data for room '%s', removing from persistent room list", jid); - persistent_errors = true; - else -- error - module:log("error", "Error loading data for room '%s', locking it until service restart. Error was: %s", jid, err); - local room = muc_new_room(jid); - room.locked = true; - room._affiliations = { [muc_host] = "owner" }; -- To prevent unlocking - rooms[jid] = room; + module:log("debug", "Restoring room %s from storage", jid); + if module:fire_event("muc-room-pre-restore", { jid = jid, data = data }) == false then + return false; + end + local state, s_err = room_state:get(node); + if not state and s_err then + module:log("debug", "Could not restore state of room %s: %s", jid, s_err); + end + local room = muclib.restore_room(data, state); + if track_room(room) then + room_state:set(node, nil); + module:fire_event("muc-room-restored", { jid = jid, room = room }); + return room; + else + return false; + end + elseif err then + module:log("error", "Error restoring room %s from storage: %s", jid, err); + local room = muclib.new_room(jid, { locked = math.huge }); + room.handle_normal_presence = handle_broken_room; + room.handle_first_presence = handle_broken_room; + return room; end end -if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); end -local host_room = muc_new_room(muc_host); -host_room.route_stanza = room_route_stanza; -host_room.save = room_save; +-- Removes a room from memory, without saving it (save first if required) +function forget_room(room) + module:log("debug", "Forgetting %s", room.jid); + rooms.save = nil; + rooms:set(room.jid, nil); +end -module:hook("host-disco-items", function(event) - local reply = event.reply; - module:log("debug", "host-disco-items called"); - for jid, room in pairs(rooms) do - if not room:get_hidden() then - reply:tag("item", {jid=jid, name=room:get_name()}):up(); - end +-- Removes a room from the database (may remain in memory) +function delete_room(room) + module:log("debug", "Deleting %s", room.jid); + room_configs:set(jid_split(room.jid), nil); + room_state:set(jid_split(room.jid), nil); + persistent_rooms:set(nil, room.jid, nil); + room_items_cache[room.jid] = nil; +end + +function module.unload() + for room in live_rooms() do + room:save(nil, true); + forget_room(room); end -end); +end -local function handle_to_domain(event) - local origin, stanza = event.origin, event.stanza; - local type = stanza.attr.type; - if type == "error" or type == "result" then return; end - if stanza.name == "iq" and type == "get" then - local xmlns = stanza.tags[1].attr.xmlns; - local node = stanza.tags[1].attr.node; - if xmlns == "http://jabber.org/protocol/muc#unique" then - origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions - else - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc - end - else - host_room:handle_stanza(origin, stanza); - --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it")); +function get_room_from_jid(room_jid) + local room = rooms:get(room_jid); + if room then + room_hit(); + rooms:set(room_jid, room); -- bump to top; + return room; end - return true; + room_miss(); + return restore_room(room_jid); end -function stanza_handler(event) - local origin, stanza = event.origin, event.stanza; - local bare = jid_bare(stanza.attr.to); - local room = rooms[bare]; - if not room then - if stanza.name ~= "presence" or stanza.attr.type ~= nil then - if stanza.attr.type ~= "error" then - origin.send(st.error_reply(stanza, "cancel", "item-not-found")); +local function set_room_defaults(room, lang) + room:set_public(module:get_option_boolean("muc_room_default_public", false)); + room:set_persistent(module:get_option_boolean("muc_room_default_persistent", room:get_persistent())); + room:set_members_only(module:get_option_boolean("muc_room_default_members_only", room:get_members_only())); + room:set_allow_member_invites(module:get_option_boolean("muc_room_default_allow_member_invites", + room:get_allow_member_invites())); + room:set_moderated(module:get_option_boolean("muc_room_default_moderated", room:get_moderated())); + room:set_whois(module:get_option_boolean("muc_room_default_public_jids", + room:get_whois() == "anyone") and "anyone" or "moderators"); + room:set_changesubject(module:get_option_boolean("muc_room_default_change_subject", room:get_changesubject())); + room:set_historylength(module:get_option_number("muc_room_default_history_length", room:get_historylength())); + room:set_language(lang or module:get_option_string("muc_room_default_language")); +end + +function create_room(room_jid, config) + local exists = get_room_from_jid(room_jid); + if exists then + return nil, "room-exists"; + end + local room = muclib.new_room(room_jid, config); + if not config then + set_room_defaults(room); + end + module:fire_event("muc-room-created", { + room = room; + }); + return track_room(room); +end + +function all_rooms() + return coroutine.wrap(function () + local seen = {}; -- Don't iterate over persistent rooms twice + for room in live_rooms() do + coroutine.yield(room); + seen[room.jid] = true; + end + local all_persistent_rooms, err = persistent_rooms_storage:get(nil); + if not all_persistent_rooms then + if err then + module:log("error", "Error loading list of persistent rooms, only rooms live in memory were iterated over"); + module:log("debug", "%s", debug.traceback(err)); end - return true; + return nil; end - if not(restrict_room_creation) or - is_admin(stanza.attr.from) or - (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then - room = create_room(bare, lock_rooms); + for room_jid in pairs(all_persistent_rooms) do + if not seen[room_jid] then + local room = restore_room(room_jid); + if room then + coroutine.yield(room); + else + module:log("error", "Missing data for room '%s', omitting from iteration", room_jid); + end + end end + end); +end + +function live_rooms() + return rooms:values(); +end + +function each_room(live_only) + if live_only then + return live_rooms(); end - if room then - room:handle_stanza(origin, stanza); - if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room - module:fire_event("muc-room-destroyed", { room = room }); - rooms[bare] = nil; -- discard room + return all_rooms(); +end + +module:hook("host-disco-items", function(event) + local reply = event.reply; + module:log("debug", "host-disco-items called"); + if next(room_items_cache) ~= nil then + for jid, room_name in pairs(room_items_cache) do + reply:tag("item", { jid = jid, name = room_name }):up(); end else - origin.send(st.error_reply(stanza, "cancel", "not-allowed")); + for room in all_rooms() do + if not room:get_hidden() then + local jid, room_name = room.jid, room:get_name(); + room_items_cache[jid] = room_name; + reply:tag("item", { jid = jid, name = room_name }):up(); + end + end end - return true; -end -module:hook("iq/bare", stanza_handler, -1); -module:hook("message/bare", stanza_handler, -1); -module:hook("presence/bare", stanza_handler, -1); -module:hook("iq/full", stanza_handler, -1); -module:hook("message/full", stanza_handler, -1); -module:hook("presence/full", stanza_handler, -1); -module:hook("iq/host", handle_to_domain, -1); -module:hook("message/host", handle_to_domain, -1); -module:hook("presence/host", handle_to_domain, -1); - -hosts[module.host].send = function(stanza) -- FIXME do a generic fix - if stanza.attr.type == "result" or stanza.attr.type == "error" then - module:send(stanza); - else error("component.send only supports result and error stanzas at the moment"); end -end +end); + +module:hook("muc-room-pre-create", function (event) + set_room_defaults(event.room, event.stanza.attr["xml:lang"]); +end, 1); + +module:hook("muc-room-pre-create", function(event) + local origin, stanza = event.origin, event.stanza; + if not track_room(event.room) then + origin.send(st.error_reply(stanza, "wait", "resource-constraint")); + return true; + end +end, -1000); + +module:hook("muc-room-destroyed",function(event) + local room = event.room; + forget_room(room); + delete_room(room); +end); + +if module:get_option_boolean("muc_tombstones", true) then -hosts[module:get_host()].muc = { rooms = rooms }; + local ttl = module:get_option_number("muc_tombstone_expiry", 86400 * 31); -local saved = false; -module.save = function() - saved = true; - return {rooms = rooms}; + module:hook("muc-room-destroyed",function(event) + local room = event.room; + if not room:get_persistent() then return end + if room._data.destroyed then + return -- Allow destruction of tombstone + end + + local tombstone = new_room(room.jid, { + locked = os.time() + ttl; + destroyed = true; + reason = event.reason; + newjid = event.newjid; + -- password? + }); + tombstone.save = room_save; + tombstone:set_persistent(true); + tombstone:set_hidden(true); + tombstone:save(true); + return true; + end, -10); end -module.restore = function(data) - for jid, oldroom in pairs(data.rooms or {}) do - local room = create_room(jid); - room._jid_nick = oldroom._jid_nick; - room._occupants = oldroom._occupants; - room._data = oldroom._data; - room._affiliations = oldroom._affiliations; + +do + local restrict_room_creation = module:get_option("restrict_room_creation"); + if restrict_room_creation == true then + restrict_room_creation = "admin"; + end + if restrict_room_creation then + local host_suffix = module.host:gsub("^[^%.]+%.", ""); + module:hook("muc-room-pre-create", function(event) + local origin, stanza = event.origin, event.stanza; + local user_jid = stanza.attr.from; + if not is_admin(user_jid) and not ( + restrict_room_creation == "local" and + select(2, jid_split(user_jid)) == host_suffix + ) then + origin.send(st.error_reply(stanza, "cancel", "not-allowed", "Room creation is restricted")); + return true; + end + end); end - hosts[module:get_host()].muc = { rooms = rooms }; end -function shutdown_room(room, stanza) - for nick, occupant in pairs(room._occupants) do - stanza.attr.from = nick; - for jid in pairs(occupant.sessions) do - stanza.attr.to = jid; - room:_route_stanza(stanza); - room._jid_nick[jid] = nil; +for event_name, method in pairs { + -- Normal room interactions + ["iq-get/bare/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ; + ["iq-get/bare/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ; + ["iq-set/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ; + ["iq-get/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ; + ["iq-set/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ; + ["iq-get/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ; + ["message/bare"] = "handle_message_to_room" ; + ["presence/bare"] = "handle_presence_to_room" ; + ["iq/bare/jabber:iq:register:query"] = "handle_register_iq"; + -- Host room + ["iq-get/host/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ; + ["iq-get/host/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ; + ["iq-set/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ; + ["iq-get/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ; + ["iq-set/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ; + ["iq-get/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ; + ["message/host"] = "handle_message_to_room" ; + ["presence/host"] = "handle_presence_to_room" ; + -- Direct to occupant (normal rooms and host room) + ["presence/full"] = "handle_presence_to_occupant" ; + ["iq/full"] = "handle_iq_to_occupant" ; + ["message/full"] = "handle_message_to_occupant" ; +} do + module:hook(event_name, function (event) + local origin, stanza = event.origin, event.stanza; + local room_jid = jid_bare(stanza.attr.to); + local room = get_room_from_jid(room_jid); + + if room and room._data.destroyed then + if room._data.locked < os.time() + or (is_admin(stanza.attr.from) and stanza.name == "presence" and stanza.attr.type == nil) then + -- Allow the room to be recreated by admin or after time has passed + delete_room(room); + room = nil; + else + if stanza.attr.type ~= "error" then + local reply = st.error_reply(stanza, "cancel", "gone", room._data.reason) + if room._data.newjid then + local uri = "xmpp:"..room._data.newjid.."?join"; + reply:get_child("error"):child_with_name("gone"):text(uri); + end + event.origin.send(reply); + end + return true; + end end - room._occupants[nick] = nil; - end + + if room == nil then + -- Watch presence to create rooms + if stanza.attr.type == nil and stanza.name == "presence" then + room = muclib.new_room(room_jid); + return room:handle_first_presence(origin, stanza); + elseif stanza.attr.type ~= "error" then + origin.send(st.error_reply(stanza, "cancel", "item-not-found")); + return true; + else + return; + end + elseif room == false then -- Error loading room + origin.send(st.error_reply(stanza, "wait", "resource-constraint")); + return true; + end + return room[method](room, origin, stanza); + end, -2) end + function shutdown_component() - if not saved then - local stanza = st.presence({type = "unavailable"}) - :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) - :tag("item", { affiliation='none', role='none' }):up() - :tag("status", { code = "332"}):up(); - for roomjid, room in pairs(rooms) do - shutdown_room(room, stanza); - end - shutdown_room(host_room, stanza); + for room in live_rooms() do + room:save(nil, true); end end -module.unload = shutdown_component; -module:hook_global("server-stopping", shutdown_component); - --- Ad-hoc commands -module:depends("adhoc") -local t_concat = table.concat; -local keys = require "util.iterators".keys; -local adhoc_new = module:require "adhoc".new; -local adhoc_initial = require "util.adhoc".new_initial_data_form; -local dataforms_new = require "util.dataforms".new; - -local destroy_rooms_layout = dataforms_new { - title = "Destroy rooms"; - instructions = "Select the rooms to destroy"; - - { name = "FORM_TYPE", type = "hidden", value = "http://prosody.im/protocol/muc#destroy" }; - { name = "rooms", type = "list-multi", required = true, label = "Rooms to destroy:"}; -}; - -local destroy_rooms_handler = adhoc_initial(destroy_rooms_layout, function() - return { rooms = array.collect(keys(rooms)):sort() }; -end, function(fields, errors) - if errors then - local errmsg = {}; - for name, err in pairs(errors) do - errmsg[#errmsg + 1] = name .. ": " .. err; +module:hook_global("server-stopping", shutdown_component, -300); + +do -- Ad-hoc commands + module:depends "adhoc"; + local t_concat = table.concat; + local adhoc_new = module:require "adhoc".new; + local adhoc_initial = require "util.adhoc".new_initial_data_form; + local array = require "util.array"; + local dataforms_new = require "util.dataforms".new; + + local destroy_rooms_layout = dataforms_new { + title = "Destroy rooms"; + instructions = "Select the rooms to destroy"; + + { name = "FORM_TYPE", type = "hidden", value = "http://prosody.im/protocol/muc#destroy" }; + { name = "rooms", type = "list-multi", required = true, label = "Rooms to destroy:"}; + }; + + local destroy_rooms_handler = adhoc_initial(destroy_rooms_layout, function() + return { rooms = array.collect(all_rooms()):pluck("jid"):sort(); }; + end, function(fields, errors) + if errors then + local errmsg = {}; + for field, err in pairs(errors) do + errmsg[#errmsg + 1] = field .. ": " .. err; + end + return { status = "completed", error = { message = t_concat(errmsg, "\n") } }; end - return { status = "completed", error = { message = t_concat(errmsg, "\n") } }; - end - for _, room in ipairs(fields.rooms) do - rooms[room]:destroy(); - rooms[room] = nil; - end - return { status = "completed", info = "The following rooms were destroyed:\n"..t_concat(fields.rooms, "\n") }; -end); -local destroy_rooms_desc = adhoc_new("Destroy Rooms", "http://prosody.im/protocol/muc#destroy", destroy_rooms_handler, "admin"); + for _, room in ipairs(fields.rooms) do + get_room_from_jid(room):destroy(); + end + return { status = "completed", info = "The following rooms were destroyed:\n"..t_concat(fields.rooms, "\n") }; + end); + local destroy_rooms_desc = adhoc_new("Destroy Rooms", + "http://prosody.im/protocol/muc#destroy", destroy_rooms_handler, "admin"); -module:provides("adhoc", destroy_rooms_desc); + module:provides("adhoc", destroy_rooms_desc); +end diff --git a/plugins/muc/moderated.lib.lua b/plugins/muc/moderated.lib.lua new file mode 100644 index 00000000..64ddb542 --- /dev/null +++ b/plugins/muc/moderated.lib.lua @@ -0,0 +1,54 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local function get_moderated(room) + return room._data.moderated; +end + +local function set_moderated(room, moderated) + moderated = moderated and true or nil; + if get_moderated(room) == moderated then return false; end + room._data.moderated = moderated; + return true; +end + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = get_moderated(event.room) and "muc_moderated" or "muc_unmoderated"}):up(); +end); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + name = "muc#roomconfig_moderatedroom"; + type = "boolean"; + label = "Moderated (require permission to speak)"; + desc = "In moderated rooms occupants must be given permission to speak by a room moderator"; + value = get_moderated(event.room); + }); +end, 80-3); + +module:hook("muc-config-submitted/muc#roomconfig_moderatedroom", function(event) + if set_moderated(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +module:hook("muc-get-default-role", function(event) + if event.affiliation == nil then + if get_moderated(event.room) then + -- XEP-0045: + -- An implementation MAY grant voice by default to visitors in unmoderated rooms. + return "visitor" + end + end +end, 1); + +return { + get = get_moderated; + set = set_moderated; +}; diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua index 8257b0b7..ef2054b1 100644 --- a/plugins/muc/muc.lib.lua +++ b/plugins/muc/muc.lib.lua @@ -1,66 +1,35 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local select = select; -local pairs, ipairs = pairs, ipairs; - -local datetime = require "util.datetime"; +local pairs = pairs; +local next = next; +local setmetatable = setmetatable; local dataform = require "util.dataforms"; - +local iterators = require "util.iterators"; local jid_split = require "util.jid".split; local jid_bare = require "util.jid".bare; local jid_prep = require "util.jid".prep; +local jid_join = require "util.jid".join; +local jid_resource = require "util.jid".resource; +local resourceprep = require "util.encodings".stringprep.resourceprep; local st = require "util.stanza"; -local log = require "util.logger".init("mod_muc"); -local t_insert, t_remove = table.insert, table.remove; -local setmetatable = setmetatable; local base64 = require "util.encodings".base64; local md5 = require "util.hashes".md5; -local muc_domain = nil; --module:get_host(); -local default_history_length, max_history_length = 20, math.huge; - ------------- -local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true}; -local function presence_filter(tag) - if presence_filters[tag.attr.xmlns] then - return nil; - end - return tag; -end - -local function get_filtered_presence(stanza) - return st.clone(stanza):maptags(presence_filter); -end -local kickable_error_conditions = { - ["gone"] = true; - ["internal-server-error"] = true; - ["item-not-found"] = true; - ["jid-malformed"] = true; - ["recipient-unavailable"] = true; - ["redirect"] = true; - ["remote-server-not-found"] = true; - ["remote-server-timeout"] = true; - ["service-unavailable"] = true; - ["malformed error"] = true; -}; - -local function get_error_condition(stanza) - local _, condition = stanza:get_error(); - return condition or "malformed error"; -end +local log = module._log; -local function is_kickable_error(stanza) - local cond = get_error_condition(stanza); - return kickable_error_conditions[cond] and cond; -end ------------ +local occupant_lib = module:require "muc/occupant" +local muc_util = module:require "muc/util"; +local is_kickable_error = muc_util.is_kickable_error; +local valid_roles, valid_affiliations = muc_util.valid_roles, muc_util.valid_affiliations; local room_mt = {}; room_mt.__index = room_mt; @@ -69,37 +38,149 @@ function room_mt:__tostring() return "MUC room ("..self.jid..")"; end +function room_mt.save() + -- overriden by mod_muc.lua +end + +function room_mt:get_occupant_jid(real_jid) + return self._jid_nick[real_jid] +end + function room_mt:get_default_role(affiliation) - if affiliation == "owner" or affiliation == "admin" then + local role = module:fire_event("muc-get-default-role", { + room = self; + affiliation = affiliation; + affiliation_rank = valid_affiliations[affiliation or "none"]; + }); + role = role ~= "none" and role or nil; -- coerces `role == false` to `nil` + return role, valid_roles[role or "none"]; +end +module:hook("muc-get-default-role", function(event) + if event.affiliation_rank >= valid_affiliations.admin then return "moderator"; - elseif affiliation == "member" then + elseif event.affiliation_rank >= valid_affiliations.none then return "participant"; - elseif not affiliation then - if not self:get_members_only() then - return self:get_moderated() and "visitor" or "participant"; - end end +end, -1); + +--- Occupant functions +function room_mt:new_occupant(bare_real_jid, nick) + local occupant = occupant_lib.new(bare_real_jid, nick); + local affiliation = self:get_affiliation(bare_real_jid); + occupant.role = self:get_default_role(affiliation); + return occupant; +end + +-- nick is in the form of an in-room JID +function room_mt:get_occupant_by_nick(nick) + local occupant = self._occupants[nick]; + if occupant == nil then return nil end + return occupant_lib.copy(occupant); +end + +do + local function next_copied_occupant(occupants, occupant_jid) + local next_occupant_jid, raw_occupant = next(occupants, occupant_jid); + if next_occupant_jid == nil then return nil end + return next_occupant_jid, occupant_lib.copy(raw_occupant); + end + -- FIXME Explain what 'read_only' is supposed to be + function room_mt:each_occupant(read_only) -- luacheck: ignore 212 + return next_copied_occupant, self._occupants, nil; + end +end + +function room_mt:has_occupant() + return next(self._occupants, nil) ~= nil +end + +function room_mt:get_occupant_by_real_jid(real_jid) + local occupant_jid = self:get_occupant_jid(real_jid); + if occupant_jid == nil then return nil end + return self:get_occupant_by_nick(occupant_jid); end -function room_mt:broadcast_presence(stanza, sid, code, nick) - stanza = get_filtered_presence(stanza); - local occupant = self._occupants[stanza.attr.from]; - stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none", nick=nick}):up(); - if code then - stanza:tag("status", {code=code}):up(); - end - self:broadcast_except_nick(stanza, stanza.attr.from); - local me = self._occupants[stanza.attr.from]; - if me then - stanza:tag("status", {code='110'}):up(); - stanza.attr.to = sid; - self:_route_stanza(stanza); +function room_mt:save_occupant(occupant) + occupant = occupant_lib.copy(occupant); -- So that occupant can be modified more + local id = occupant.nick + + -- Need to maintain _jid_nick secondary index + local old_occupant = self._occupants[id]; + if old_occupant then + for real_jid in old_occupant:each_session() do + self._jid_nick[real_jid] = nil; + end + end + + local has_live_session = false + if occupant.role ~= nil then + for real_jid, presence in occupant:each_session() do + if presence.attr.type == nil then + has_live_session = true + self._jid_nick[real_jid] = occupant.nick; + end + end + if not has_live_session then + -- Has no live sessions left; they have left the room. + occupant.role = nil + end + end + if not has_live_session then + occupant = nil end + self._occupants[id] = occupant + return occupant end -function room_mt:broadcast_message(stanza, historic) + +function room_mt:route_to_occupant(occupant, stanza) local to = stanza.attr.to; - local room_jid = self.jid; + for jid in occupant:each_session() do + stanza.attr.to = jid; + self:route_stanza(stanza); + end + stanza.attr.to = to; +end + +-- actor is the attribute table +local function add_item(x, affiliation, role, jid, nick, actor_nick, actor_jid, reason) + x:tag("item", {affiliation = affiliation; role = role; jid = jid; nick = nick;}) + if actor_nick or actor_jid then + x:tag("actor", {nick = actor_nick; jid = actor_jid;}):up() + end + if reason then + x:tag("reason"):text(reason):up() + end + x:up(); + return x +end + +-- actor is (real) jid +function room_mt:build_item_list(occupant, x, is_anonymous, nick, actor_nick, actor_jid, reason) + local affiliation = self:get_affiliation(occupant.bare_jid) or "none"; + local role = occupant.role or "none"; + if is_anonymous then + add_item(x, affiliation, role, nil, nick, actor_nick, actor_jid, reason); + else + for real_jid in occupant:each_session() do + add_item(x, affiliation, role, real_jid, nick, actor_nick, actor_jid, reason); + end + end + return x +end + +function room_mt:broadcast_message(stanza) + if module:fire_event("muc-broadcast-message", {room = self, stanza = stanza}) then + return true; + end + self:broadcast(stanza); + return true; +end + +-- Strip delay tags claiming to be from us +module:hook("muc-occupant-groupchat", function (event) + local stanza = event.stanza; + local room = event.room; + local room_jid = room.jid; stanza:maptags(function (child) if child.name == "delay" and child.attr["xmlns"] == "urn:xmpp:delay" then @@ -114,507 +195,595 @@ function room_mt:broadcast_message(stanza, historic) end return child; end) +end); - for occupant, o_data in pairs(self._occupants) do - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); +-- Broadcast a stanza to all occupants in the room. +-- optionally checks conditional called with (nick, occupant) +function room_mt:broadcast(stanza, cond_func) + for nick, occupant in self:each_occupant() do + if cond_func == nil or cond_func(nick, occupant) then + self:route_to_occupant(occupant, stanza) end end - stanza.attr.to = to; - if historic then -- add to history - return self:save_to_history(stanza) - end end -function room_mt:save_to_history(stanza) - local history = self._data['history']; - if not history then history = {}; self._data['history'] = history; end - stanza = st.clone(stanza); - stanza.attr.to = ""; - local stamp = datetime.datetime(); - stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = self.jid, stamp = stamp}):up(); -- XEP-0203 - stanza:tag("x", {xmlns = "jabber:x:delay", from = self.jid, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated) - local entry = { stanza = stanza, stamp = stamp }; - t_insert(history, entry); - while #history > (self._data.history_length or default_history_length) do t_remove(history, 1) end + +local function can_see_real_jids(whois, occupant) + if whois == "anyone" then + return true; + elseif whois == "moderators" then + return valid_roles[occupant.role or "none"] >= valid_roles.moderator; + end end -function room_mt:broadcast_except_nick(stanza, nick) - for rnick, occupant in pairs(self._occupants) do - if rnick ~= nick then - for jid in pairs(occupant.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); + +-- Broadcasts an occupant's presence to the whole room +-- Takes the x element that goes into the stanzas +function room_mt:publicise_occupant_status(occupant, x, nick, actor, reason) + local base_x = x.base or x; + -- Build real jid and (optionally) occupant jid template presences + local base_presence do + -- Try to use main jid's presence + local pr = occupant:get_presence(); + if pr and (occupant.role ~= nil or pr.attr.type == "unavailable") then + base_presence = st.clone(pr); + else -- user is leaving but didn't send a leave presence. make one for them + base_presence = st.presence {from = occupant.nick; type = "unavailable";}; + end + end + + -- Fire event (before full_p and anon_p are created) + local event = { + room = self; stanza = base_presence; x = base_x; + occupant = occupant; nick = nick; actor = actor; + reason = reason; + } + module:fire_event("muc-broadcast-presence", event); + + -- Allow muc-broadcast-presence listeners to change things + nick = event.nick; + actor = event.actor; + reason = event.reason; + + local whois = self:get_whois(); + + local actor_nick; + if actor then + actor_nick = jid_resource(self:get_occupant_jid(actor)); + end + + local full_p, full_x; + local function get_full_p() + if full_p == nil then + full_x = st.clone(x.full or base_x); + self:build_item_list(occupant, full_x, false, nick, actor_nick, actor, reason); + full_p = st.clone(base_presence):add_child(full_x); + end + return full_p, full_x; + end + + local anon_p, anon_x; + local function get_anon_p() + if anon_p == nil then + anon_x = st.clone(x.anon or base_x); + self:build_item_list(occupant, anon_x, true, nick, actor_nick, nil, reason); + anon_p = st.clone(base_presence):add_child(anon_x); + end + return anon_p, anon_x; + end + + local self_p, self_x; + do + -- Can always see your own full jids + -- But not allowed to see actor's + self_x = st.clone(x.self or base_x); + self:build_item_list(occupant, self_x, false, nick, actor_nick, nil, reason); + self_p = st.clone(base_presence):add_child(self_x); + end + + -- General populance + for occupant_nick, n_occupant in self:each_occupant() do + if occupant_nick ~= occupant.nick then + local pr; + if can_see_real_jids(whois, n_occupant) then + pr = get_full_p(); + elseif occupant.bare_jid == n_occupant.bare_jid then + pr = self_p; + else + pr = get_anon_p(); end + self:route_to_occupant(n_occupant, pr); end end -end -function room_mt:send_occupant_list(to) - local current_nick = self._jid_nick[to]; - for occupant, o_data in pairs(self._occupants) do - if occupant ~= current_nick then - local pres = get_filtered_presence(o_data.sessions[o_data.jid]); - pres.attr.to, pres.attr.from = to, occupant; - pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=o_data.affiliation or "none", role=o_data.role or "none"}):up(); - self:_route_stanza(pres); + -- Presences for occupant itself + self_x:tag("status", {code = "110";}):up(); + if occupant.role == nil then + -- They get an unavailable + self:route_to_occupant(occupant, self_p); + else + -- use their own presences as templates + for full_jid, pr in occupant:each_session() do + pr = st.clone(pr); + pr.attr.to = full_jid; + pr:add_child(self_x); + self:route_stanza(pr); end end end -function room_mt:send_history(to, stanza) - local history = self._data['history']; -- send discussion history - if history then - local x_tag = stanza and stanza:get_child("x", "http://jabber.org/protocol/muc"); - local history_tag = x_tag and x_tag:get_child("history", "http://jabber.org/protocol/muc"); - - local maxchars = history_tag and tonumber(history_tag.attr.maxchars); - if maxchars then maxchars = math.floor(maxchars); end - - local maxstanzas = math.floor(history_tag and tonumber(history_tag.attr.maxstanzas) or #history); - if not history_tag then maxstanzas = 20; end - - local seconds = history_tag and tonumber(history_tag.attr.seconds); - if seconds then seconds = datetime.datetime(os.time() - math.floor(seconds)); end - - local since = history_tag and history_tag.attr.since; - if since then since = datetime.parse(since); since = since and datetime.datetime(since); end - if seconds and (not since or since < seconds) then since = seconds; end - - local n = 0; - local charcount = 0; - - for i=#history,1,-1 do - local entry = history[i]; - if maxchars then - if not entry.chars then - entry.stanza.attr.to = ""; - entry.chars = #tostring(entry.stanza); - end - charcount = charcount + entry.chars + #to; - if charcount > maxchars then break; end + +function room_mt:send_occupant_list(to, filter) + local to_bare = jid_bare(to); + local is_anonymous = false; + local whois = self:get_whois(); + if whois ~= "anyone" then + local affiliation = self:get_affiliation(to); + if affiliation ~= "admin" and affiliation ~= "owner" then + local occupant = self:get_occupant_by_real_jid(to); + if not (occupant and can_see_real_jids(whois, occupant)) then + is_anonymous = true; end - if since and since > entry.stamp then break; end - if n + 1 > maxstanzas then break; end - n = n + 1; end - for i=#history-n+1,#history do - local msg = history[i].stanza; - msg.attr.to = to; - self:_route_stanza(msg); + end + for occupant_jid, occupant in self:each_occupant() do + if filter == nil or filter(occupant_jid, occupant) then + local x = st.stanza("x", {xmlns='http://jabber.org/protocol/muc#user'}); + self:build_item_list(occupant, x, is_anonymous and to_bare ~= occupant.bare_jid); -- can always see your own jids + local pres = st.clone(occupant:get_presence()); + pres.attr.to = to; + pres:add_child(x); + self:route_stanza(pres); end end end -function room_mt:send_subject(to) - self:_route_stanza(st.message({type='groupchat', from=self._data['subject_from'] or self.jid, to=to}):tag("subject"):text(self._data['subject'])); -end function room_mt:get_disco_info(stanza) - local count = 0; for _ in pairs(self._occupants) do count = count + 1; end - local reply = st.reply(stanza):query("http://jabber.org/protocol/disco#info") - :tag("identity", {category="conference", type="text", name=self:get_name()}):up() - :tag("feature", {var="http://jabber.org/protocol/muc"}):up() - :tag("feature", {var="http://jabber.org/protocol/muc#stable_id"}):up() - :tag("feature", {var=self:get_password() and "muc_passwordprotected" or "muc_unsecured"}):up() - :tag("feature", {var=self:get_moderated() and "muc_moderated" or "muc_unmoderated"}):up() - :tag("feature", {var=self:get_members_only() and "muc_membersonly" or "muc_open"}):up() - :tag("feature", {var=self:get_persistent() and "muc_persistent" or "muc_temporary"}):up() - :tag("feature", {var=self:get_hidden() and "muc_hidden" or "muc_public"}):up() - :tag("feature", {var=self._data.whois ~= "anyone" and "muc_semianonymous" or "muc_nonanonymous"}):up() - ; - local dataform = dataform.new({ - { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#roominfo" }, - { name = "muc#roominfo_description", label = "Description", value = "" }, - { name = "muc#roominfo_occupants", label = "Number of occupants", value = "" } - }); - local formdata = { - ["muc#roominfo_description"] = self:get_description(), - ["muc#roominfo_occupants"] = tostring(count), - }; - module:fire_event("muc-disco#info", { room = self, reply = reply, form = dataform, formdata = formdata }); - reply:add_child(dataform:form(formdata, 'result')) + local node = stanza.tags[1].attr.node or ""; + local reply = st.reply(stanza):tag("query", { xmlns = "http://jabber.org/protocol/disco#info", node = node }); + local event_name = "muc-disco#info"; + local event_data = { room = self, reply = reply, stanza = stanza }; + + if node ~= "" then + event_name = event_name.."/"..node; + else + event_data.form = dataform.new { + { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#roominfo" }; + }; + event_data.formdata = {}; + end + module:fire_event(event_name, event_data); + if event_data.form then + reply:add_child(event_data.form:form(event_data.formdata, "result")); + end return reply; end -function room_mt:get_disco_items(stanza) +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = "http://jabber.org/protocol/muc"}):up(); + event.reply:tag("feature", {var = "http://jabber.org/protocol/muc#stable_id"}):up(); +end); +module:hook("muc-disco#info", function(event) + table.insert(event.form, { name = "muc#roominfo_occupants", label = "Number of occupants" }); + event.formdata["muc#roominfo_occupants"] = tostring(iterators.count(event.room:each_occupant())); +end); + +function room_mt:get_disco_items(stanza) -- luacheck: ignore 212 return st.reply(stanza):query("http://jabber.org/protocol/disco#items"); end -function room_mt:set_subject(current_nick, subject) - if subject == "" then subject = nil; end - self._data['subject'] = subject; - self._data['subject_from'] = current_nick; - if self.save then self:save(); end - local msg = st.message({type='groupchat', from=current_nick}) - :tag('subject'):text(subject):up(); - self:broadcast_message(msg, false); - return true; -end -local function build_unavailable_presence_from_error(stanza) +function room_mt:handle_kickable(origin, stanza) -- luacheck: ignore 212 + local real_jid = stanza.attr.from; + local occupant = self:get_occupant_by_real_jid(real_jid); + if occupant == nil then return nil; end local type, condition, text = stanza:get_error(); local error_message = "Kicked: "..(condition and condition:gsub("%-", " ") or "presence error"); - if text then + if text and self:get_whois() == "anyone" then error_message = error_message..": "..text; end - return st.presence({type='unavailable', from=stanza.attr.from, to=stanza.attr.to}) - :tag('status'):text(error_message); + occupant:set_session(real_jid, st.presence({type="unavailable"}) + :tag('status'):text(error_message)); + local is_last_session = occupant.jid == real_jid; + if is_last_session then + occupant.role = nil; + end + local new_occupant = self:save_occupant(occupant); + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + if is_last_session then + x:tag("status", {code = "333"}); + end + self:publicise_occupant_status(new_occupant or occupant, x); + if is_last_session then + module:fire_event("muc-occupant-left", {room = self; nick = occupant.nick; occupant = occupant;}); + end + return true; end -function room_mt:set_name(name) - if name == "" or type(name) ~= "string" or name == (jid_split(self.jid)) then name = nil; end - if self._data.name ~= name then - self._data.name = name; - if self.save then self:save(true); end +-- Give the room creator owner affiliation +module:hook("muc-room-pre-create", function(event) + event.room:set_affiliation(true, jid_bare(event.stanza.attr.from), "owner"); +end, -1); + +-- check if user is banned +module:hook("muc-occupant-pre-join", function(event) + local room, stanza = event.room, event.stanza; + local affiliation = room:get_affiliation(stanza.attr.from); + if affiliation == "outcast" then + local reply = st.error_reply(stanza, "auth", "forbidden"):up(); + reply.tags[1].attr.code = "403"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; end -end -function room_mt:get_name() - return self._data.name or jid_split(self.jid); -end -function room_mt:set_description(description) - if description == "" or type(description) ~= "string" then description = nil; end - if self._data.description ~= description then - self._data.description = description; - if self.save then self:save(true); end +end, -10); + +module:hook("muc-occupant-pre-join", function(event) + local nick = jid_resource(event.occupant.nick); + if not nick:find("%S") then + event.origin.send(st.error_reply(event.stanza, "modify", "not-allowed", "Invisible Nicknames are forbidden")); + return true; end -end -function room_mt:get_description() - return self._data.description; -end -function room_mt:set_password(password) - if password == "" or type(password) ~= "string" then password = nil; end - if self._data.password ~= password then - self._data.password = password; - if self.save then self:save(true); end +end, 1); + +module:hook("muc-occupant-pre-change", function(event) + if not jid_resource(event.dest_occupant.nick):find("%S") then + event.origin.send(st.error_reply(event.stanza, "modify", "not-allowed", "Invisible Nicknames are forbidden")); + return true; end -end -function room_mt:get_password() - return self._data.password; -end -function room_mt:set_moderated(moderated) - moderated = moderated and true or nil; - if self._data.moderated ~= moderated then - self._data.moderated = moderated; - if self.save then self:save(true); end +end, 1); + +function room_mt:handle_first_presence(origin, stanza) + if not stanza:get_child("x", "http://jabber.org/protocol/muc") then + module:log("debug", "Room creation without <x>, possibly desynced"); + + origin.send(st.error_reply(stanza, "cancel", "item-not-found")); + return true; end -end -function room_mt:get_moderated() - return self._data.moderated; -end -function room_mt:set_members_only(members_only) - members_only = members_only and true or nil; - if self._data.members_only ~= members_only then - self._data.members_only = members_only; - if self.save then self:save(true); end + + local real_jid = stanza.attr.from; + local dest_jid = stanza.attr.to; + local bare_jid = jid_bare(real_jid); + if module:fire_event("muc-room-pre-create", { + room = self; + origin = origin; + stanza = stanza; + }) then return true; end + local is_first_dest_session = true; + local dest_occupant = self:new_occupant(bare_jid, dest_jid); + + local orig_nick = dest_occupant.nick; + if module:fire_event("muc-occupant-pre-join", { + room = self; + origin = origin; + stanza = stanza; + is_first_session = is_first_dest_session; + is_new_room = true; + occupant = dest_occupant; + }) then return true; end + local nick_changed = orig_nick ~= dest_occupant.nick; + + dest_occupant:set_session(real_jid, stanza); + local dest_x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + dest_x:tag("status", {code = "201"}):up(); + if self:get_whois() == "anyone" then + dest_x:tag("status", {code = "100"}):up(); end -end -function room_mt:get_members_only() - return self._data.members_only; -end -function room_mt:set_persistent(persistent) - persistent = persistent and true or nil; - if self._data.persistent ~= persistent then - self._data.persistent = persistent; - if self.save then self:save(true); end + if nick_changed then + dest_x:tag("status", {code = "210"}):up(); end + self:save_occupant(dest_occupant); + + self:publicise_occupant_status(dest_occupant, dest_x); + + module:fire_event("muc-occupant-joined", { + room = self; + nick = dest_occupant.nick; + occupant = dest_occupant; + stanza = stanza; + origin = origin; + }); + module:fire_event("muc-occupant-session-new", { + room = self; + nick = dest_occupant.nick; + occupant = dest_occupant; + stanza = stanza; + origin = origin; + jid = real_jid; + }); + module:fire_event("muc-room-created", { + room = self; + creator = dest_occupant; + stanza = stanza; + origin = origin; + }); + return true; end -function room_mt:get_persistent() - return self._data.persistent; -end -function room_mt:set_hidden(hidden) - hidden = hidden and true or nil; - if self._data.hidden ~= hidden then - self._data.hidden = hidden; - if self.save then self:save(true); end + +function room_mt:handle_normal_presence(origin, stanza) + local type = stanza.attr.type; + local real_jid = stanza.attr.from; + local bare_jid = jid_bare(real_jid); + local orig_occupant = self:get_occupant_by_real_jid(real_jid); + local muc_x = stanza:get_child("x", "http://jabber.org/protocol/muc"); + + if orig_occupant == nil and not muc_x and stanza.attr.type == nil then + module:log("debug", "Attempted join without <x>, possibly desynced"); + origin.send(st.error_reply(stanza, "cancel", "item-not-found", + "You must join the room before sending presence updates")); + return true; end -end -function room_mt:get_hidden() - return self._data.hidden; -end -function room_mt:get_public() - return not self:get_hidden(); -end -function room_mt:set_public(public) - return self:set_hidden(not public); -end -function room_mt:set_changesubject(changesubject) - changesubject = changesubject and true or nil; - if self._data.changesubject ~= changesubject then - self._data.changesubject = changesubject; - if self.save then self:save(true); end + + local is_first_dest_session; + local dest_occupant; + if type == "unavailable" then + if orig_occupant == nil then return true; end -- Unavailable from someone not in the room + -- dest_occupant = nil + elseif orig_occupant and orig_occupant.nick == stanza.attr.to then -- Just a presence update + log("debug", "presence update for %s from session %s", orig_occupant.nick, real_jid); + dest_occupant = orig_occupant; + else + local dest_jid = stanza.attr.to; + dest_occupant = self:get_occupant_by_nick(dest_jid); + if dest_occupant == nil then + log("debug", "no occupant found for %s; creating new occupant object for %s", dest_jid, real_jid); + is_first_dest_session = true; + dest_occupant = self:new_occupant(bare_jid, dest_jid); + else + is_first_dest_session = false; + end end -end -function room_mt:get_changesubject() - return self._data.changesubject; -end -function room_mt:get_historylength() - return self._data.history_length or default_history_length; -end -function room_mt:set_historylength(length) - length = math.min(tonumber(length) or default_history_length, max_history_length or math.huge); - if length == default_history_length then - length = nil; + local is_last_orig_session; + if orig_occupant ~= nil then + -- Is there are least 2 sessions? + local iter, ob, last = orig_occupant:each_session(); + is_last_orig_session = iter(ob, iter(ob, last)) == nil; end - self._data.history_length = length; -end + local orig_nick = dest_occupant and dest_occupant.nick; + + local event, event_name = { + room = self; + origin = origin; + stanza = stanza; + is_first_session = is_first_dest_session; + is_last_session = is_last_orig_session; + }; + if orig_occupant == nil then + event_name = "muc-occupant-pre-join"; + event.occupant = dest_occupant; + elseif dest_occupant == nil then + event_name = "muc-occupant-pre-leave"; + event.occupant = orig_occupant; + else + event_name = "muc-occupant-pre-change"; + event.orig_occupant = orig_occupant; + event.dest_occupant = dest_occupant; + end + if module:fire_event(event_name, event) then return true; end -local valid_whois = { moderators = true, anyone = true }; + local nick_changed = dest_occupant and orig_nick ~= dest_occupant.nick; -function room_mt:set_whois(whois) - if valid_whois[whois] and self._data.whois ~= whois then - self._data.whois = whois; - if self.save then self:save(true); end + -- Check for nick conflicts + if dest_occupant ~= nil and not is_first_dest_session + and bare_jid ~= jid_bare(dest_occupant.bare_jid) then + -- new nick or has different bare real jid + log("debug", "%s couldn't join due to nick conflict: %s", real_jid, dest_occupant.nick); + local reply = st.error_reply(stanza, "cancel", "conflict"):up(); + reply.tags[1].attr.code = "409"; + origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; end -end -function room_mt:get_whois() - return self._data.whois; -end + -- Send presence stanza about original occupant + if orig_occupant ~= nil and orig_occupant ~= dest_occupant then + local orig_x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + local dest_nick; + if dest_occupant == nil then -- Session is leaving + log("debug", "session %s is leaving occupant %s", real_jid, orig_occupant.nick); + if is_last_orig_session then + orig_occupant.role = nil; + end + orig_occupant:set_session(real_jid, stanza); + else + log("debug", "session %s is changing from occupant %s to %s", real_jid, orig_occupant.nick, dest_occupant.nick); + local generated_unavail = st.presence {from = orig_occupant.nick, to = real_jid, type = "unavailable"}; + orig_occupant:set_session(real_jid, generated_unavail); + dest_nick = jid_resource(dest_occupant.nick); + if not is_first_dest_session then -- User is swapping into another pre-existing session + log("debug", "session %s is swapping into multisession %s, showing it leave.", real_jid, dest_occupant.nick); + -- Show the other session leaving + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + add_item(x, self:get_affiliation(bare_jid), "none"); + local pr = st.presence{from = dest_occupant.nick, to = real_jid, type = "unavailable"} + :tag("status"):text("you are joining pre-existing session " .. dest_nick):up() + :add_child(x); + self:route_stanza(pr); + end + if is_first_dest_session and is_last_orig_session then -- Normal nick change + log("debug", "no sessions in %s left; publicly marking as nick change", orig_occupant.nick); + orig_x:tag("status", {code = "303";}):up(); + else -- The session itself always needs to see a nick change + -- don't want to get our old nick's available presence, + -- so remove our session from there, and manually generate an unavailable + orig_occupant:remove_session(real_jid); + log("debug", "generating nick change for %s", real_jid); + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + -- COMPAT: clients get confused if they see other items besides their own + -- self:build_item_list(orig_occupant, x, false, dest_nick); + add_item(x, self:get_affiliation(bare_jid), orig_occupant.role, real_jid, dest_nick); + x:tag("status", {code = "303";}):up(); + x:tag("status", {code = "110";}):up(); + self:route_stanza(generated_unavail:add_child(x)); + dest_nick = nil; -- set dest_nick to nil; so general populance doesn't see it for whole orig_occupant + end + end -local function construct_stanza_id(room, stanza) - local from_jid, to_nick = stanza.attr.from, stanza.attr.to; - local from_nick = room._jid_nick[from_jid]; - local occupant = room._occupants[to_nick]; - local to_jid = occupant.jid; + self:save_occupant(orig_occupant); + self:publicise_occupant_status(orig_occupant, orig_x, dest_nick); - return from_nick, to_jid, base64.encode(to_jid.."\0"..stanza.attr.id.."\0"..md5(from_jid)); -end -local function deconstruct_stanza_id(room, stanza) - local from_jid_possiblybare, to_nick = stanza.attr.from, stanza.attr.to; - local from_jid, id, to_jid_hash = (base64.decode(stanza.attr.id) or ""):match("^(%Z+)%z(%Z*)%z(.+)$"); - local from_nick = room._jid_nick[from_jid]; - - if not(from_nick) then return; end - if not(from_jid_possiblybare == from_jid or from_jid_possiblybare == jid_bare(from_jid)) then return; end - - local occupant = room._occupants[to_nick]; - for to_jid in pairs(occupant and occupant.sessions or {}) do - if md5(to_jid) == to_jid_hash then - return from_nick, to_jid, id; + if is_last_orig_session then + module:fire_event("muc-occupant-left", { + room = self; + nick = orig_occupant.nick; + occupant = orig_occupant; + origin = origin; + stanza = stanza; + }); + end + end + + if dest_occupant ~= nil then + dest_occupant:set_session(real_jid, stanza); + self:save_occupant(dest_occupant); + + if orig_occupant == nil or muc_x then + -- Send occupant list to newly joined or desynced user + self:send_occupant_list(real_jid, function(nick, occupant) -- luacheck: ignore 212 + -- Don't include self + return occupant:get_presence(real_jid) == nil; + end) + end + local dest_x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + local self_x = st.clone(dest_x); + if orig_occupant == nil and self:get_whois() == "anyone" then + self_x:tag("status", {code = "100"}):up(); + end + if nick_changed then + self_x:tag("status", {code="210"}):up(); + end + self:publicise_occupant_status(dest_occupant, {base=dest_x,self=self_x}); + + if orig_occupant ~= nil and orig_occupant ~= dest_occupant and not is_last_orig_session then + -- If user is swapping and wasn't last original session + log("debug", "session %s split nicks; showing %s rejoining", real_jid, orig_occupant.nick); + -- Show the original nick joining again + local pr = st.clone(orig_occupant:get_presence()); + pr.attr.to = real_jid; + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";}); + self:build_item_list(orig_occupant, x, false); + -- TODO: new status code to inform client this was the multi-session it left? + pr:add_child(x); + self:route_stanza(pr); + end + + if orig_occupant == nil or muc_x then + if is_first_dest_session then + module:fire_event("muc-occupant-joined", { + room = self; + nick = dest_occupant.nick; + occupant = dest_occupant; + stanza = stanza; + origin = origin; + }); + end + module:fire_event("muc-occupant-session-new", { + room = self; + nick = dest_occupant.nick; + occupant = dest_occupant; + stanza = stanza; + origin = origin; + jid = real_jid; + }); end end + return true; end +function room_mt:handle_presence_to_occupant(origin, stanza) + local type = stanza.attr.type; + if type == "error" then -- error, kick em out! + return self:handle_kickable(origin, stanza) + elseif type == nil or type == "unavailable" then + return self:handle_normal_presence(origin, stanza); + elseif type ~= 'result' then -- bad type + if type ~= 'visible' and type ~= 'invisible' then -- COMPAT ejabberd can broadcast or forward XEP-0018 presences + origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? + end + end + return true; +end -function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc +function room_mt:handle_iq_to_occupant(origin, stanza) local from, to = stanza.attr.from, stanza.attr.to; - local room = jid_bare(to); - local current_nick = self._jid_nick[from]; local type = stanza.attr.type; - log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag()); - if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end - if stanza.name == "presence" then - local pr = get_filtered_presence(stanza); - pr.attr.from = current_nick; - if type == "error" then -- error, kick em out! - if current_nick then - log("debug", "kicking %s from %s", current_nick, room); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); - end - elseif type == "unavailable" then -- unavailable - if current_nick then - log("debug", "%s leaving %s", current_nick, room); - self._jid_nick[from] = nil; - local occupant = self._occupants[current_nick]; - local new_jid = next(occupant.sessions); - if new_jid == from then new_jid = next(occupant.sessions, new_jid); end - if new_jid then - local jid = occupant.jid; - occupant.jid = new_jid; - occupant.sessions[from] = nil; - pr.attr.to = from; - pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=occupant.affiliation or "none", role='none'}):up() - :tag("status", {code='110'}):up(); - self:_route_stanza(pr); - if jid ~= new_jid then - pr = st.clone(occupant.sessions[new_jid]) - :tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=occupant.affiliation or "none", role=occupant.role or "none"}); - pr.attr.from = current_nick; - self:broadcast_except_nick(pr, current_nick); - end - else - occupant.role = 'none'; - self:broadcast_presence(pr, from); - self._occupants[current_nick] = nil; + local id = stanza.attr.id; + local occupant = self:get_occupant_by_nick(to); + if (type == "error" or type == "result") then + do -- deconstruct_stanza_id + if not occupant then return nil; end + local from_jid, orig_id, to_jid_hash = (base64.decode(id) or ""):match("^(%Z+)%z(%Z*)%z(.+)$"); + if not(from == from_jid or from == jid_bare(from_jid)) then return nil; end + local from_occupant_jid = self:get_occupant_jid(from_jid); + if from_occupant_jid == nil then return nil; end + local session_jid + for to_jid in occupant:each_session() do + if md5(to_jid) == to_jid_hash then + session_jid = to_jid; + break; end end - elseif not type then -- available - if current_nick then - --if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence - if current_nick == to then -- simple presence - log("debug", "%s broadcasted presence", current_nick); - self._occupants[current_nick].sessions[from] = pr; - self:broadcast_presence(pr, from); - else -- change nick - -- a MUC service MUST NOT allow empty or invisible Room Nicknames - -- (i.e., Room Nicknames that consist only of one or more space characters). - if not select(3, jid_split(to)):find("[^ ]") then -- resourceprep turns all whitespace into 0x20 - module:log("debug", "Rejecting invisible nickname"); - origin.send(st.error_reply(stanza, "cancel", "not-allowed")); - return; - end - local occupant = self._occupants[current_nick]; - local is_multisession = next(occupant.sessions, next(occupant.sessions)); - if self._occupants[to] or is_multisession then - log("debug", "%s couldn't change nick", current_nick); - local reply = st.error_reply(stanza, "cancel", "conflict"):up(); - reply.tags[1].attr.code = "409"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else - local data = self._occupants[current_nick]; - local to_nick = select(3, jid_split(to)); - if to_nick then - log("debug", "%s (%s) changing nick to %s", current_nick, data.jid, to); - local p = st.presence({type='unavailable', from=current_nick}); - self:broadcast_presence(p, from, '303', to_nick); - self._occupants[current_nick] = nil; - self._occupants[to] = data; - self._jid_nick[from] = to; - pr.attr.from = to; - self._occupants[to].sessions[from] = pr; - self:broadcast_presence(pr, from); - else - --TODO malformed-jid - end - end - end - --else -- possible rejoin - -- log("debug", "%s had connection replaced", current_nick); - -- self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}) - -- :tag('status'):text('Replaced by new connection'):up()); -- send unavailable - -- self:handle_to_occupant(origin, stanza); -- resend available - --end - else -- enter room - -- a MUC service MUST NOT allow empty or invisible Room Nicknames - -- (i.e., Room Nicknames that consist only of one or more space characters). - if not select(3, jid_split(to)):find("[^ ]") then -- resourceprep turns all whitespace into 0x20 - module:log("debug", "Rejecting invisible nickname"); - origin.send(st.error_reply(stanza, "cancel", "not-allowed")); - return; - end - local new_nick = to; - local is_merge; - if self._occupants[to] then - if jid_bare(from) ~= jid_bare(self._occupants[to].jid) then - new_nick = nil; - end - is_merge = true; - end - local password = stanza:get_child("x", "http://jabber.org/protocol/muc"); - password = password and password:get_child("password", "http://jabber.org/protocol/muc"); - password = password and password[1] ~= "" and password[1]; - if self:get_password() and self:get_password() ~= password then - log("debug", "%s couldn't join due to invalid password: %s", from, to); - local reply = st.error_reply(stanza, "auth", "not-authorized"):up(); - reply.tags[1].attr.code = "401"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - elseif not new_nick then - log("debug", "%s couldn't join due to nick conflict: %s", from, to); - local reply = st.error_reply(stanza, "cancel", "conflict"):up(); - reply.tags[1].attr.code = "409"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else - log("debug", "%s joining as %s", from, to); - if not next(self._affiliations) then -- new room, no owners - self._affiliations[jid_bare(from)] = "owner"; - if self.locked and not stanza:get_child("x", "http://jabber.org/protocol/muc") then - self.locked = nil; -- Older groupchat protocol doesn't lock - end - elseif self.locked then -- Deny entry - module:log("debug", "Room is locked, denying entry"); - origin.send(st.error_reply(stanza, "cancel", "item-not-found")); - return; - end - local affiliation = self:get_affiliation(from); - local role = self:get_default_role(affiliation) - if role then -- new occupant - if not is_merge then - self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}}; - else - self._occupants[to].sessions[from] = get_filtered_presence(stanza); - end - self._jid_nick[from] = to; - self:send_occupant_list(from); - pr.attr.from = to; - pr:tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) - :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up(); - if not is_merge then - self:broadcast_except_nick(pr, to); - end - pr:tag("status", {code='110'}):up(); - if self._data.whois == 'anyone' then - pr:tag("status", {code='100'}):up(); - end - if self.locked then - pr:tag("status", {code='201'}):up(); - end - pr.attr.to = from; - self:_route_stanza(pr); - self:send_history(from, stanza); - self:send_subject(from); - elseif not affiliation then -- registration required for entering members-only room - local reply = st.error_reply(stanza, "auth", "registration-required"):up(); - reply.tags[1].attr.code = "407"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - else -- banned - local reply = st.error_reply(stanza, "auth", "forbidden"):up(); - reply.tags[1].attr.code = "403"; - origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); - end - end - end - elseif type ~= 'result' then -- bad type - if type ~= 'visible' and type ~= 'invisible' then -- COMPAT ejabberd can broadcast or forward XEP-0018 presences - origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? - end + if session_jid == nil then return nil; end + stanza.attr.from, stanza.attr.to, stanza.attr.id = from_occupant_jid, session_jid, orig_id; end - elseif not current_nick then -- not in room - if (type == "error" or type == "result") and stanza.name == "iq" then - local id = stanza.attr.id; - stanza.attr.from, stanza.attr.to, stanza.attr.id = deconstruct_stanza_id(self, stanza); - if stanza.attr.id then - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; - elseif type ~= "error" then + log("debug", "%s sent private iq stanza to %s (%s)", from, to, stanza.attr.to); + self:route_stanza(stanza); + stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; + return true; + else -- Type is "get" or "set" + local current_nick = self:get_occupant_jid(from); + if not current_nick then origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); + return true; end - elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM - origin.send(st.error_reply(stanza, "modify", "bad-request")); - elseif current_nick and stanza.name == "message" and type == "error" and is_kickable_error(stanza) then - log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); -- send unavailable - else -- private stanza - local o_data = self._occupants[to]; - if o_data then - log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid); - if stanza.name == "iq" then - local id = stanza.attr.id; - if stanza.attr.type == "get" or stanza.attr.type == "set" then - stanza.attr.from, stanza.attr.to, stanza.attr.id = construct_stanza_id(self, stanza); - else - stanza.attr.from, stanza.attr.to, stanza.attr.id = deconstruct_stanza_id(self, stanza); - end - if type == 'get' and stanza.tags[1].attr.xmlns == 'vcard-temp' then - stanza.attr.to = jid_bare(stanza.attr.to); - end - if stanza.attr.id then - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; - else -- message - stanza:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" }):up(); - stanza.attr.from = current_nick; - for jid in pairs(o_data.sessions) do - stanza.attr.to = jid; - self:_route_stanza(stanza); - end - stanza.attr.from, stanza.attr.to = from, to; - end - elseif type ~= "error" and type ~= "result" then -- recipient not in room + if not occupant then -- recipient not in room origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); + return true; + end + -- XEP-0410 MUC Self-Ping #1220 + if to == current_nick and stanza.attr.type == "get" and stanza:get_child("ping", "urn:xmpp:ping") then + self:route_stanza(st.reply(stanza)); + return true; + end + do -- construct_stanza_id + stanza.attr.id = base64.encode(occupant.jid.."\0"..stanza.attr.id.."\0"..md5(from)); + end + stanza.attr.from, stanza.attr.to = current_nick, occupant.jid; + log("debug", "%s sent private iq stanza to %s (%s)", from, to, occupant.jid); + local iq_ns = stanza.tags[1].attr.xmlns; + if iq_ns == 'vcard-temp' or iq_ns == "http://jabber.org/protocol/pubsub" or iq_ns == "urn:ietf:params:xml:ns:vcard-4.0" then + stanza.attr.to = jid_bare(stanza.attr.to); + end + self:route_stanza(stanza); + stanza.attr.from, stanza.attr.to, stanza.attr.id = from, to, id; + return true; + end +end + +function room_mt:handle_message_to_occupant(origin, stanza) + local from, to = stanza.attr.from, stanza.attr.to; + local current_nick = self:get_occupant_jid(from); + local type = stanza.attr.type; + if not current_nick then -- not in room + if type ~= "error" then + origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); end + return true; + end + if type == "groupchat" then -- groupchat messages not allowed in PM + origin.send(st.error_reply(stanza, "modify", "bad-request")); + return true; + elseif type == "error" and is_kickable_error(stanza) then + log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); + return self:handle_kickable(origin, stanza); -- send unavailable + end + + local o_data = self:get_occupant_by_nick(to); + if not o_data then + origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room")); + return true; end + log("debug", "%s sent private message stanza to %s (%s)", from, to, o_data.jid); + stanza:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" }):up(); + stanza.attr.from = current_nick; + self:route_to_occupant(o_data, stanza) + -- TODO: Remove x tag? + stanza.attr.from = from; + return true; end function room_mt:send_form(origin, stanza) @@ -631,547 +800,629 @@ function room_mt:get_form_layout(actor) name = 'FORM_TYPE', type = 'hidden', value = 'http://jabber.org/protocol/muc#roomconfig' - }, - { - name = 'muc#roomconfig_roomname', - type = 'text-single', - label = 'Name', - value = self:get_name() or "", - }, - { - name = 'muc#roomconfig_roomdesc', - type = 'text-single', - label = 'Description', - value = self:get_description() or "", - }, - { - name = 'muc#roomconfig_persistentroom', - type = 'boolean', - label = 'Make Room Persistent?', - value = self:get_persistent() - }, - { - name = 'muc#roomconfig_publicroom', - type = 'boolean', - label = 'Make Room Publicly Searchable?', - value = not self:get_hidden() - }, - { - name = 'muc#roomconfig_changesubject', - type = 'boolean', - label = 'Allow Occupants to Change Subject?', - value = self:get_changesubject() - }, - { - name = 'muc#roomconfig_whois', - type = 'list-single', - label = 'Who May Discover Real JIDs?', - value = { - { value = 'moderators', label = 'Moderators Only', default = self._data.whois == 'moderators' }, - { value = 'anyone', label = 'Anyone', default = self._data.whois == 'anyone' } - } - }, - { - name = 'muc#roomconfig_roomsecret', - type = 'text-private', - label = 'Password', - value = self:get_password() or "", - }, - { - name = 'muc#roomconfig_moderatedroom', - type = 'boolean', - label = 'Make Room Moderated?', - value = self:get_moderated() - }, - { - name = 'muc#roomconfig_membersonly', - type = 'boolean', - label = 'Make Room Members-Only?', - value = self:get_members_only() - }, - { - name = 'muc#roomconfig_historylength', - type = 'text-single', - label = 'Maximum Number of History Messages Returned by Room', - value = tostring(self:get_historylength()) } }); return module:fire_event("muc-config-form", { room = self, actor = actor, form = form }) or form; end function room_mt:process_form(origin, stanza) - local query = stanza.tags[1]; - local form; - for _, tag in ipairs(query.tags) do if tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then form = tag; break; end end - if not form then origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return; end - if form.attr.type == "cancel" then origin.send(st.reply(stanza)); return; end - if form.attr.type ~= "submit" then origin.send(st.error_reply(stanza, "cancel", "bad-request", "Not a submitted form")); return; end - - if form.tags[1] == nil then - -- instant room - if self.save then self:save(true); end + local form = stanza.tags[1]:get_child("x", "jabber:x:data"); + if form.attr.type == "cancel" then origin.send(st.reply(stanza)); - return true; - end + elseif form.attr.type == "submit" then + local fields, errors, present; + if form.tags[1] == nil then -- Instant room + fields, present = {}, {}; + else + fields, errors, present = self:get_form_layout(stanza.attr.from):data(form); + if fields.FORM_TYPE ~= "http://jabber.org/protocol/muc#roomconfig" then + origin.send(st.error_reply(stanza, "cancel", "bad-request", "Form is not of type room configuration")); + return true; + end + end - local fields, errors, present = self:get_form_layout(stanza.attr.from):data(form); - if fields.FORM_TYPE ~= "http://jabber.org/protocol/muc#roomconfig" then - origin.send(st.error_reply(stanza, "cancel", "bad-request", "Form is not of type room configuration")); - return; - end + local event = { + room = self; + origin = origin; + stanza = stanza; + fields = fields; + status_codes = {}; + actor = stanza.attr.from; + }; + function event.update_option(name, field, allowed) + local new = fields[field]; + if new == nil then return; end + if allowed and not allowed[new] then return; end + if new == self["get_"..name](self) then return; end + event.status_codes["104"] = true; + self["set_"..name](self, new); + return true; + end + module:fire_event("muc-config-submitted", event); + for submitted_field in pairs(present) do + event.field, event.value = submitted_field, fields[submitted_field]; + module:fire_event("muc-config-submitted/"..submitted_field, event); + end + event.field, event.value = nil, nil; - local changed = {}; + self:save(true); + origin.send(st.reply(stanza)); - local function handle_option(name, field, allowed) - if not present[field] then return; end - local new = fields[field]; - if allowed and not allowed[new] then return; end - if new == self["get_"..name](self) then return; end - changed[name] = true; - self["set_"..name](self, new); + if next(event.status_codes) then + local msg = st.message({type='groupchat', from=self.jid}) + :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) + for code in pairs(event.status_codes) do + msg:tag("status", {code = code;}):up(); + end + msg:up(); + self:broadcast_message(msg); + end + else + origin.send(st.error_reply(stanza, "cancel", "bad-request", "Not a submitted form")); end + return true; +end - local event = { room = self, fields = fields, changed = changed, stanza = stanza, origin = origin, update_option = handle_option }; - module:fire_event("muc-config-submitted", event); - - handle_option("name", "muc#roomconfig_roomname"); - handle_option("description", "muc#roomconfig_roomdesc"); - handle_option("persistent", "muc#roomconfig_persistentroom"); - handle_option("moderated", "muc#roomconfig_moderatedroom"); - handle_option("members_only", "muc#roomconfig_membersonly"); - handle_option("public", "muc#roomconfig_publicroom"); - handle_option("changesubject", "muc#roomconfig_changesubject"); - handle_option("historylength", "muc#roomconfig_historylength"); - handle_option("whois", "muc#roomconfig_whois", valid_whois); - handle_option("password", "muc#roomconfig_roomsecret"); - - if self.save then self:save(true); end - if self.locked then - module:fire_event("muc-room-unlocked", { room = self }); - self.locked = nil; +-- Removes everyone from the room +function room_mt:clear(x) + x = x or st.stanza("x", {xmlns='http://jabber.org/protocol/muc#user'}); + local occupants_updated = {}; + for nick, occupant in self:each_occupant() do -- luacheck: ignore 213 + occupant.role = nil; + self:save_occupant(occupant); + occupants_updated[occupant] = true; end - origin.send(st.reply(stanza)); - - if next(changed) then - local msg = st.message({type='groupchat', from=self.jid}) - :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) - :tag('status', {code = '104'}):up(); - if changed.whois then - local code = (self:get_whois() == 'moderators') and "173" or "172"; - msg.tags[1]:tag('status', {code = code}):up(); - end - self:broadcast_message(msg, false) + for occupant in pairs(occupants_updated) do + self:publicise_occupant_status(occupant, x); + module:fire_event("muc-occupant-left", { room = self; nick = occupant.nick; occupant = occupant;}); end end function room_mt:destroy(newjid, reason, password) - local pr = st.presence({type = "unavailable"}) - :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) - :tag("item", { affiliation='none', role='none' }):up() - :tag("destroy", {jid=newjid}) - if reason then pr:tag("reason"):text(reason):up(); end - if password then pr:tag("password"):text(password):up(); end - for nick, occupant in pairs(self._occupants) do - pr.attr.from = nick; - for jid in pairs(occupant.sessions) do - pr.attr.to = jid; - self:_route_stanza(pr); - self._jid_nick[jid] = nil; + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}) + :tag("destroy", {jid=newjid}); + if reason then x:tag("reason"):text(reason):up(); end + if password then x:tag("password"):text(password):up(); end + x:up(); + self.destroying = reason or true; + self:clear(x); + module:fire_event("muc-room-destroyed", { room = self, reason = reason, newjid = newjid, password = password }); + return true; +end + +function room_mt:handle_disco_info_get_query(origin, stanza) + origin.send(self:get_disco_info(stanza)); + return true; +end + +function room_mt:handle_disco_items_get_query(origin, stanza) + origin.send(self:get_disco_items(stanza)); + return true; +end + +function room_mt:handle_admin_query_set_command(origin, stanza) + local item = stanza.tags[1].tags[1]; + if not item then + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end + if item.attr.jid then -- Validate provided JID + item.attr.jid = jid_prep(item.attr.jid); + if not item.attr.jid then + origin.send(st.error_reply(stanza, "modify", "jid-malformed")); + return true; + end + end + if item.attr.nick then -- Validate provided nick + item.attr.nick = resourceprep(item.attr.nick); + if not item.attr.nick then + origin.send(st.error_reply(stanza, "modify", "jid-malformed", "invalid nickname")); + return true; end - self._occupants[nick] = nil; end - self:set_persistent(false); - module:fire_event("muc-room-destroyed", { room = self }); + if not item.attr.jid and item.attr.nick then + -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation + local occupant = self:get_occupant_by_nick(self.jid.."/"..item.attr.nick); + if occupant then item.attr.jid = occupant.bare_jid; end + elseif item.attr.role and not item.attr.nick and item.attr.jid then + -- Role changes should use nick, but we have a JID so pull the nick from that + local nick = self:get_occupant_jid(item.attr.jid); + if nick then item.attr.nick = jid_resource(nick); end + end + local actor = stanza.attr.from; + local reason = item:get_child_text("reason"); + local success, errtype, err + if item.attr.affiliation and item.attr.jid and not item.attr.role then + local registration_data; + if item.attr.nick then + local room_nick = self.jid.."/"..item.attr.nick; + local existing_occupant = self:get_occupant_by_nick(room_nick); + if existing_occupant and existing_occupant.bare_jid ~= item.attr.jid then + module:log("debug", "Existing occupant for %s: %s does not match %s", room_nick, existing_occupant.bare_jid, item.attr.jid); + self:set_role(true, room_nick, nil, "This nickname is reserved"); + end + module:log("debug", "Reserving %s for %s (%s)", item.attr.nick, item.attr.jid, item.attr.affiliation); + registration_data = { reserved_nickname = item.attr.nick }; + end + success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, reason, registration_data); + elseif item.attr.role and item.attr.nick and not item.attr.affiliation then + success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, reason); + else + success, errtype, err = nil, "cancel", "bad-request"; + end + self:save(true); + if not success then + origin.send(st.error_reply(stanza, errtype, err)); + else + origin.send(st.reply(stanza)); + end return true; end -function room_mt:handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc - local type = stanza.attr.type; - local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns; - if stanza.name == "iq" then - if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" and not stanza.tags[1].attr.node then - origin.send(self:get_disco_info(stanza)); - elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" and not stanza.tags[1].attr.node then - origin.send(self:get_disco_items(stanza)); - elseif xmlns == "http://jabber.org/protocol/muc#admin" then - local actor = stanza.attr.from; - local affiliation = self:get_affiliation(actor); - local current_nick = self._jid_nick[actor]; - local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation); - local item = stanza.tags[1].tags[1]; - if item and item.name == "item" then - if type == "set" then - local callback = function() origin.send(st.reply(stanza)); end - if item.attr.jid then -- Validate provided JID - item.attr.jid = jid_prep(item.attr.jid); - if not item.attr.jid then - origin.send(st.error_reply(stanza, "modify", "jid-malformed")); - return; - end - end - if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation - local occupant = self._occupants[self.jid.."/"..item.attr.nick]; - if occupant then item.attr.jid = occupant.jid; end - elseif not item.attr.nick and item.attr.jid then - local nick = self._jid_nick[item.attr.jid]; - if nick then item.attr.nick = select(3, jid_split(nick)); end - end - local reason = item.tags[1] and item.tags[1].name == "reason" and #item.tags[1] == 1 and item.tags[1][1]; - if item.attr.affiliation and item.attr.jid and not item.attr.role then - local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback, reason); - if not success then origin.send(st.error_reply(stanza, errtype, err)); end - elseif item.attr.role and item.attr.nick and not item.attr.affiliation then - local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback, reason); - if not success then origin.send(st.error_reply(stanza, errtype, err)); end - else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); - end - elseif type == "get" then - local _aff = item.attr.affiliation; - local _rol = item.attr.role; - if _aff and not _rol then - if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") - or (affiliation and affiliation ~= "outcast" and self:get_members_only() and self:get_whois() == "anyone") then - local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); - for jid, affiliation in pairs(self._affiliations) do - if affiliation == _aff then - reply:tag("item", {affiliation = _aff, jid = jid}):up(); - end - end - origin.send(reply); - else - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end - elseif _rol and not _aff then - if role == "moderator" then - -- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway? - if _rol == "none" then _rol = nil; end - local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); - for occupant_jid, occupant in pairs(self._occupants) do - if occupant.role == _rol then - reply:tag("item", { - nick = select(3, jid_split(occupant_jid)), - role = _rol or "none", - affiliation = occupant.affiliation or "none", - jid = occupant.jid - }):up(); - end - end - origin.send(reply); - else - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end - else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); - end - end - elseif type == "set" or type == "get" then - origin.send(st.error_reply(stanza, "cancel", "bad-request")); +function room_mt:handle_admin_query_get_command(origin, stanza) + local actor = stanza.attr.from; + local affiliation = self:get_affiliation(actor); + local item = stanza.tags[1].tags[1]; + local _aff = item.attr.affiliation; + local _aff_rank = valid_affiliations[_aff or "none"]; + local _rol = item.attr.role; + if _aff and _aff_rank and not _rol then + -- You need to be at least an admin, and be requesting info about your affifiliation or lower + -- e.g. an admin can't ask for a list of owners + local affiliation_rank = valid_affiliations[affiliation or "none"]; + if (affiliation_rank >= valid_affiliations.admin and affiliation_rank >= _aff_rank) + or (self:get_whois() == "anyone") then + local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); + for jid in self:each_affiliation(_aff or "none") do + local nick = self:get_registered_nick(jid); + reply:tag("item", {affiliation = _aff, jid = jid, nick = nick }):up(); end - elseif xmlns == "http://jabber.org/protocol/muc#owner" and (type == "get" or type == "set") and stanza.tags[1].name == "query" then - if self:get_affiliation(stanza.attr.from) ~= "owner" then - origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); - elseif stanza.attr.type == "get" then - self:send_form(origin, stanza); - elseif stanza.attr.type == "set" then - local child = stanza.tags[1].tags[1]; - if not child then - origin.send(st.error_reply(stanza, "modify", "bad-request")); - elseif child.name == "destroy" then - local newjid = child.attr.jid; - local reason, password; - for _,tag in ipairs(child.tags) do - if tag.name == "reason" then - reason = #tag.tags == 0 and tag[1]; - elseif tag.name == "password" then - password = #tag.tags == 0 and tag[1]; - end - end - self:destroy(newjid, reason, password); - origin.send(st.reply(stanza)); - else - self:process_form(origin, stanza); - end - end - elseif type == "set" or type == "get" then - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end - elseif stanza.name == "message" and type == "groupchat" then - local from = stanza.attr.from; - local current_nick = self._jid_nick[from]; - local occupant = self._occupants[current_nick]; - if not occupant then -- not in room - origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); - elseif occupant.role == "visitor" then - origin.send(st.error_reply(stanza, "auth", "forbidden")); + origin.send(reply:up()); + return true; else - local from = stanza.attr.from; - stanza.attr.from = current_nick; - local subject = stanza:get_child_text("subject"); - if subject then - if occupant.role == "moderator" or - ( self._data.changesubject and occupant.role == "participant" ) then -- and participant - self:set_subject(current_nick, subject); - else - stanza.attr.from = from; - origin.send(st.error_reply(stanza, "auth", "forbidden")); - end - else - self:broadcast_message(stanza, self:get_historylength() > 0 and stanza:get_child("body")); - end - stanza.attr.from = from; - end - elseif stanza.name == "message" and type == "error" and is_kickable_error(stanza) then - local current_nick = self._jid_nick[stanza.attr.from]; - log("debug", "%s kicked from %s for sending an error message", current_nick, self.jid); - self:handle_to_occupant(origin, build_unavailable_presence_from_error(stanza)); -- send unavailable - elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick - local to = stanza.attr.to; - local current_nick = self._jid_nick[stanza.attr.from]; - if current_nick then - stanza.attr.to = current_nick; - self:handle_to_occupant(origin, stanza); - stanza.attr.to = to; - elseif type ~= "error" and type ~= "result" then - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; end - elseif stanza.name == "message" and not(type == "chat" or type == "error" or type == "groupchat" or type == "headline") and #stanza.tags == 1 - and self._jid_nick[stanza.attr.from] and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" then - local x = stanza.tags[1]; - local payload = (#x.tags == 1 and x.tags[1]); - if payload and payload.name == "invite" and payload.attr.to then - local _from, _to = stanza.attr.from, stanza.attr.to; - local _invitee = jid_prep(payload.attr.to); - if _invitee then - local _reason = payload.tags[1] and payload.tags[1].name == 'reason' and #payload.tags[1].tags == 0 and payload.tags[1][1]; - local invite = st.message({from = _to, to = _invitee, id = stanza.attr.id}) - :tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) - :tag('invite', {from=_from}) - :tag('reason'):text(_reason or ""):up() - :up(); - if self:get_password() then - invite:tag("password"):text(self:get_password()):up(); - end - invite:up() - :tag('x', {xmlns="jabber:x:conference", jid=_to}) -- COMPAT: Some older clients expect this - :text(_reason or "") - :up() - :tag('body') -- Add a plain message for clients which don't support invites - :text(_from..' invited you to the room '.._to..(_reason and (' ('.._reason..')') or "")) - :up(); - if self:get_members_only() and not self:get_affiliation(_invitee) then - log("debug", "%s invited %s into members only room %s, granting membership", _from, _invitee, _to); - self:set_affiliation(_from, _invitee, "member", nil, "Invited by " .. self._jid_nick[_from]) + elseif _rol and valid_roles[_rol or "none"] and not _aff then + local role = self:get_role(self:get_occupant_jid(actor)) or self:get_default_role(affiliation); + if valid_roles[role or "none"] >= valid_roles.moderator then + if _rol == "none" then _rol = nil; end + local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin"); + -- TODO: whois check here? (though fully anonymous rooms are not supported) + for occupant_jid, occupant in self:each_occupant() do + if occupant.role == _rol then + local nick = jid_resource(occupant_jid); + self:build_item_list(occupant, reply, false, nick); end - self:_route_stanza(invite); - else - origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); end + origin.send(reply:up()); + return true; else - origin.send(st.error_reply(stanza, "cancel", "bad-request")); + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; end else - if type == "error" or type == "result" then return; end - origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end +end + +function room_mt:handle_owner_query_get_to_room(origin, stanza) + if self:get_affiliation(stanza.attr.from) ~= "owner" then + origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); + return true; end + + self:send_form(origin, stanza); + return true; end +function room_mt:handle_owner_query_set_to_room(origin, stanza) + if self:get_affiliation(stanza.attr.from) ~= "owner" then + origin.send(st.error_reply(stanza, "auth", "forbidden", "Only owners can configure rooms")); + return true; + end -function room_mt:handle_stanza(origin, stanza) - local to_node, to_host, to_resource = jid_split(stanza.attr.to); - if to_resource then - self:handle_to_occupant(origin, stanza); + local child = stanza.tags[1].tags[1]; + if not child then + origin.send(st.error_reply(stanza, "modify", "bad-request")); + return true; + elseif child.name == "destroy" then + local newjid = child.attr.jid; + local reason = child:get_child_text("reason"); + local password = child:get_child_text("password"); + self:destroy(newjid, reason, password); + origin.send(st.reply(stanza)); + return true; + elseif child.name == "x" and child.attr.xmlns == "jabber:x:data" then + return self:process_form(origin, stanza); else - self:handle_to_room(origin, stanza); + origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + return true; + end +end + +function room_mt:handle_groupchat_to_room(origin, stanza) + local from = stanza.attr.from; + local occupant = self:get_occupant_by_real_jid(from); + if module:fire_event("muc-occupant-groupchat", { + room = self; origin = origin; stanza = stanza; from = from; occupant = occupant; + }) then return true; end + stanza.attr.from = occupant.nick; + self:broadcast_message(stanza); + stanza.attr.from = from; + return true; +end + +-- Role check +module:hook("muc-occupant-groupchat", function(event) + local role_rank = valid_roles[event.occupant and event.occupant.role or "none"]; + if role_rank <= valid_roles.none then + event.origin.send(st.error_reply(event.stanza, "cancel", "not-acceptable")); + return true; + elseif role_rank <= valid_roles.visitor then + event.origin.send(st.error_reply(event.stanza, "auth", "forbidden")); + return true; + end +end, 50); + +-- hack - some buggy clients send presence updates to the room rather than their nick +function room_mt:handle_presence_to_room(origin, stanza) + local current_nick = self:get_occupant_jid(stanza.attr.from); + local handled + if current_nick then + local to = stanza.attr.to; + stanza.attr.to = current_nick; + handled = self:handle_presence_to_occupant(origin, stanza); + stanza.attr.to = to; + end + return handled; +end + +-- Need visitor role or higher to invite +module:hook("muc-pre-invite", function(event) + local room, stanza = event.room, event.stanza; + local _from = stanza.attr.from; + local inviter = room:get_occupant_by_real_jid(_from); + local role = inviter and inviter.role or room:get_default_role(room:get_affiliation(_from)); + if valid_roles[role or "none"] <= valid_roles.visitor then + event.origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + end +end); + +function room_mt:handle_mediated_invite(origin, stanza) + local payload = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite"); + local invitee = jid_prep(payload.attr.to); + if not invitee then + origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); + return true; + elseif module:fire_event("muc-pre-invite", {room = self, origin = origin, stanza = stanza}) then + return true; + end + local invite = muc_util.filter_muc_x(st.clone(stanza)); + invite.attr.from = self.jid; + invite.attr.to = invitee; + invite:tag('x', {xmlns='http://jabber.org/protocol/muc#user'}) + :tag('invite', {from = stanza.attr.from;}) + :tag('reason'):text(payload:get_child_text("reason")):up() + :up() + :up(); + if not module:fire_event("muc-invite", {room = self, stanza = invite, origin = origin, incoming = stanza}) then + self:route_stanza(invite); + end + return true; +end + +-- COMPAT: Some older clients expect this +module:hook("muc-invite", function(event) + local room, stanza = event.room, event.stanza; + local invite = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite"); + local reason = invite:get_child_text("reason"); + stanza:tag('x', {xmlns = "jabber:x:conference"; jid = room.jid;}) + :text(reason or "") + :up(); +end); + +-- Add a plain message for clients which don't support invites +module:hook("muc-invite", function(event) + local room, stanza = event.room, event.stanza; + if not stanza:get_child("body") then + local invite = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite"); + local reason = invite:get_child_text("reason") or ""; + stanza:tag("body") + :text(invite.attr.from.." invited you to the room "..room.jid..(reason ~= "" and (" ("..reason..")") or "")) + :up(); + end +end); + +function room_mt:handle_mediated_decline(origin, stanza) + local payload = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("decline"); + local declinee = jid_prep(payload.attr.to); + if not declinee then + origin.send(st.error_reply(stanza, "cancel", "jid-malformed")); + return true; + elseif module:fire_event("muc-pre-decline", {room = self, origin = origin, stanza = stanza}) then + return true; + end + local decline = muc_util.filter_muc_x(st.clone(stanza)); + decline.attr.from = self.jid; + decline.attr.to = declinee; + decline:tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) + :tag("decline", {from = stanza.attr.from}) + :tag("reason"):text(payload:get_child_text("reason")):up() + :up() + :up(); + if not module:fire_event("muc-decline", {room = self, stanza = decline, origin = origin, incoming = stanza}) then + declinee = decline.attr.to; -- re-fetch, in case event modified it + local occupant + if jid_bare(declinee) == self.jid then -- declinee jid is already an in-room jid + occupant = self:get_occupant_by_nick(declinee); + end + if occupant then + self:route_to_occupant(occupant, decline); + else + self:route_stanza(decline); + end + end + return true; +end + +-- Add a plain message for clients which don't support declines +module:hook("muc-decline", function(event) + local room, stanza = event.room, event.stanza; + if not stanza:get_child("body") then + local decline = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("decline"); + local reason = decline:get_child_text("reason") or ""; + stanza:body(decline.attr.from.." declined your invite to the room " + ..room.jid..(reason ~= "" and (" ("..reason..")") or "")); + end +end); + +function room_mt:handle_message_to_room(origin, stanza) + local type = stanza.attr.type; + if type == "groupchat" then + return self:handle_groupchat_to_room(origin, stanza) + elseif type == "error" and is_kickable_error(stanza) then + return self:handle_kickable(origin, stanza) + elseif type == nil or type == "normal" then + local x = stanza:get_child("x", "http://jabber.org/protocol/muc#user"); + if x then + local payload = x.tags[1]; + if payload == nil then --luacheck: ignore 542 + -- fallthrough + elseif payload.name == "invite" and payload.attr.to then + return self:handle_mediated_invite(origin, stanza) + elseif payload.name == "decline" and payload.attr.to then + return self:handle_mediated_decline(origin, stanza) + end + origin.send(st.error_reply(stanza, "cancel", "bad-request")); + return true; + end + + local form = stanza:get_child("x", "jabber:x:data"); + local form_type = dataform.get_type(form); + if form_type == "http://jabber.org/protocol/muc#request" then + self:handle_role_request(origin, stanza, form); + return true; + end end end -function room_mt:route_stanza(stanza) end -- Replace with a routing function, e.g., function(room, stanza) core_route_stanza(origin, stanza); end +function room_mt:route_stanza(stanza) -- luacheck: ignore 212 + module:send(stanza); +end function room_mt:get_affiliation(jid) local node, host, resource = jid_split(jid); + -- Affiliations are granted, revoked, and maintained based on the user's bare JID. local bare = node and node.."@"..host or host; - local result = self._affiliations[bare]; -- Affiliations are granted, revoked, and maintained based on the user's bare JID. + local result = self._affiliations[bare]; if not result and self._affiliations[host] == "outcast" then result = "outcast"; end -- host banned return result; end -function room_mt:set_affiliation(actor, jid, affiliation, callback, reason) - jid = jid_bare(jid); - if affiliation == "none" then affiliation = nil; end - if affiliation and affiliation ~= "outcast" and affiliation ~= "owner" and affiliation ~= "admin" and affiliation ~= "member" then + +-- Iterates over jid, affiliation pairs +function room_mt:each_affiliation(with_affiliation) + local _affiliations, _affiliation_data = self._affiliations, self._affiliation_data; + return function(_, jid) + local affiliation; + repeat -- Iterate until we get a match + jid, affiliation = next(_affiliations, jid); + until with_affiliation == nil or jid == nil or affiliation == with_affiliation + return jid, affiliation, _affiliation_data[jid]; + end, nil, nil; +end + +function room_mt:set_affiliation(actor, jid, affiliation, reason, data) + if not actor then return nil, "modify", "not-acceptable"; end; + + local node, host, resource = jid_split(jid); + if not host then return nil, "modify", "not-acceptable"; end + jid = jid_join(node, host); -- Bare + local is_host_only = node == nil; + + if valid_affiliations[affiliation or "none"] == nil then return nil, "modify", "not-acceptable"; end - if actor ~= true then + affiliation = affiliation ~= "none" and affiliation or nil; -- coerces `affiliation == false` to `nil` + + local target_affiliation = self._affiliations[jid]; -- Raw; don't want to check against host + local is_downgrade = valid_affiliations[target_affiliation or "none"] > valid_affiliations[affiliation or "none"]; + + if actor == true then + actor = nil -- So we can pass it safely to 'publicise_occupant_status' below + else local actor_affiliation = self:get_affiliation(actor); - local target_affiliation = self:get_affiliation(jid); - if target_affiliation == affiliation then -- no change, shortcut - if callback then callback(); end - return true; - end - if actor_affiliation ~= "owner" then - if affiliation == "owner" or affiliation == "admin" or actor_affiliation ~= "admin" or target_affiliation == "owner" or target_affiliation == "admin" then - return nil, "cancel", "not-allowed"; - end - elseif target_affiliation == "owner" and jid_bare(actor) == jid then -- self change - local is_last = true; - for j, aff in pairs(self._affiliations) do if j ~= jid and aff == "owner" then is_last = false; break; end end - if is_last then - return nil, "cancel", "conflict"; + if actor_affiliation == "owner" then + if jid_bare(actor) == jid and is_downgrade then -- self change + -- need at least one owner + local is_last = true; + for j in self:each_affiliation("owner") do + if j ~= jid then is_last = false; break; end + end + if is_last then + return nil, "cancel", "conflict"; + end end + -- owners can do anything else + elseif affiliation == "owner" or affiliation == "admin" + or actor_affiliation ~= "admin" + or target_affiliation == "owner" or target_affiliation == "admin" then + -- Can't demote owners or other admins + return nil, "cancel", "not-allowed"; end end + + -- Set in 'database' self._affiliations[jid] = affiliation; + if not affiliation or data == false or (data ~= nil and next(data) == nil) then + module:log("debug", "Clearing affiliation data for %s", jid); + self._affiliation_data[jid] = nil; + elseif data then + module:log("debug", "Updating affiliation data for %s", jid); + self._affiliation_data[jid] = data; + end + + -- Update roles local role = self:get_default_role(affiliation); - local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}) - :tag("item", {affiliation=affiliation or "none", role=role or "none"}) - :tag("reason"):text(reason or ""):up() - :up(); - local presence_type = nil; + local role_rank = valid_roles[role or "none"]; + local occupants_updated = {}; -- Filled with old roles + for nick, occupant in self:each_occupant() do -- luacheck: ignore 213 + if occupant.bare_jid == jid or ( + -- Outcast can be by host. + is_host_only and affiliation == "outcast" and select(2, jid_split(occupant.bare_jid)) == host + ) then + -- need to publcize in all cases; as affiliation in <item/> has changed. + occupants_updated[occupant] = occupant.role; + if occupant.role ~= role and ( + is_downgrade or + valid_roles[occupant.role or "none"] < role_rank -- upgrade + ) then + occupant.role = role; + self:save_occupant(occupant); + end + end + end + + -- Tell the room of the new occupant affiliations+roles + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}); if not role then -- getting kicked - presence_type = "unavailable"; if affiliation == "outcast" then x:tag("status", {code="301"}):up(); -- banned else x:tag("status", {code="321"}):up(); -- affiliation change end end - -- Your own presence should have status 110 - local self_x = st.clone(x); - self_x:tag("status", {code="110"}); - local modified_nicks = {}; - for nick, occupant in pairs(self._occupants) do - if jid_bare(occupant.jid) == jid then - if not role then -- getting kicked - self._occupants[nick] = nil; - else - occupant.affiliation, occupant.role = affiliation, role; - end - for jid,pres in pairs(occupant.sessions) do -- remove for all sessions of the nick - if not role then self._jid_nick[jid] = nil; end - local p = st.clone(pres); - p.attr.from = nick; - p.attr.type = presence_type; - p.attr.to = jid; - if occupant.jid == jid then - -- Broadcast this presence to everyone else later, with the public <x> variant - local bp = st.clone(p); - bp:add_child(x); - modified_nicks[nick] = bp; + local is_semi_anonymous = self:get_whois() == "moderators"; + + if next(occupants_updated) ~= nil then + for occupant, old_role in pairs(occupants_updated) do + self:publicise_occupant_status(occupant, x, nil, actor, reason); + if occupant.role == nil then + module:fire_event("muc-occupant-left", {room = self; nick = occupant.nick; occupant = occupant;}); + elseif is_semi_anonymous and + (old_role == "moderator" and occupant.role ~= "moderator") or + (old_role ~= "moderator" and occupant.role == "moderator") then -- Has gained or lost moderator status + -- Send everyone else's presences (as jid visibility has changed) + for real_jid in occupant:each_session() do + self:send_occupant_list(real_jid, function(occupant_jid, occupant) --luacheck: ignore 212 433 + return occupant.bare_jid ~= jid; + end); end - p:add_child(self_x); - self:_route_stanza(p); end end + else + -- Announce affiliation change for a user that is not currently in the room, + -- XEP-0045 (v1.31.2) example 195 + -- add_item(x, affiliation, role, jid, nick, actor_nick, actor_jid, reason) + local announce_msg = st.message({ from = self.jid }) + :add_child(add_item(st.clone(x), affiliation, nil, jid, nil, nil, nil, reason)); + local min_role = is_semi_anonymous and "moderator" or "none"; + self:broadcast(announce_msg, muc_util.only_with_min_role(min_role)); end - if self.save then self:save(); end - if callback then callback(); end - for nick,p in pairs(modified_nicks) do - p.attr.from = nick; - self:broadcast_except_nick(p, nick); - end + + self:save(true); + + module:fire_event("muc-set-affiliation", { + room = self; + actor = actor; + jid = jid; + affiliation = affiliation or "none"; + reason = reason; + previous_affiliation = target_affiliation; + data = data and data or nil; -- coerce false to nil + in_room = next(occupants_updated) ~= nil; + }); + return true; end +function room_mt:get_affiliation_data(jid, key) + local data = self._affiliation_data[jid]; + if not data then return nil; end + if key then + return data[key]; + end + return data; +end + function room_mt:get_role(nick) - local session = self._occupants[nick]; - return session and session.role or nil; + local occupant = self:get_occupant_by_nick(nick); + return occupant and occupant.role or nil; end -function room_mt:can_set_role(actor_jid, occupant_jid, role) - local occupant = self._occupants[occupant_jid]; - if not occupant or not actor_jid then return nil, "modify", "not-acceptable"; end - if actor_jid == true then return true; end +function room_mt:set_role(actor, occupant_jid, role, reason) + if not actor then return nil, "modify", "not-acceptable"; end - local actor = self._occupants[self._jid_nick[actor_jid]]; - if actor and actor.role == "moderator" then - if occupant.affiliation ~= "owner" and occupant.affiliation ~= "admin" then - if actor.affiliation == "owner" or actor.affiliation == "admin" then - return true; - elseif occupant.role ~= "moderator" and role ~= "moderator" then - return true; - end - end + local occupant = self:get_occupant_by_nick(occupant_jid); + if not occupant then return nil, "modify", "item-not-found"; end + + if valid_roles[role or "none"] == nil then + return nil, "modify", "not-acceptable"; end - return nil, "cancel", "not-allowed"; -end -function room_mt:set_role(actor, occupant_jid, role, callback, reason) - if role == "none" then role = nil; end - if role and role ~= "moderator" and role ~= "participant" and role ~= "visitor" then return nil, "modify", "not-acceptable"; end - local allowed, err_type, err_condition = self:can_set_role(actor, occupant_jid, role); - if not allowed then return allowed, err_type, err_condition; end - local occupant = self._occupants[occupant_jid]; - local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}) - :tag("item", {affiliation=occupant.affiliation or "none", nick=select(3, jid_split(occupant_jid)), role=role or "none"}) - :tag("reason"):text(reason or ""):up() - :up(); - local presence_type = nil; - if not role then -- kick - presence_type = "unavailable"; - self._occupants[occupant_jid] = nil; - for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick - self._jid_nick[jid] = nil; - end - x:tag("status", {code = "307"}):up(); + role = role ~= "none" and role or nil; -- coerces `role == false` to `nil` + + if actor == true then + actor = nil -- So we can pass it safely to 'publicise_occupant_status' below else - occupant.role = role; - end - local self_x = st.clone(x); - self_x:tag("status", {code = "110"}):up(); - local bp; - for jid,pres in pairs(occupant.sessions) do -- send to all sessions of the nick - local p = st.clone(pres); - p.attr.from = occupant_jid; - p.attr.type = presence_type; - p.attr.to = jid; - if occupant.jid == jid then - bp = st.clone(p); - bp:add_child(x); + -- Can't do anything to other owners or admins + local occupant_affiliation = self:get_affiliation(occupant.bare_jid); + if occupant_affiliation == "owner" or occupant_affiliation == "admin" then + return nil, "cancel", "not-allowed"; end - p:add_child(self_x); - self:_route_stanza(p); - end - if callback then callback(); end - if bp then - self:broadcast_except_nick(bp, occupant_jid); - end - return true; -end -function room_mt:_route_stanza(stanza) - local muc_child; - local to_occupant = self._occupants[self._jid_nick[stanza.attr.to]]; - local from_occupant = self._occupants[stanza.attr.from]; - if stanza.name == "presence" then - if to_occupant and from_occupant then - if self._data.whois == 'anyone' then - muc_child = stanza:get_child("x", "http://jabber.org/protocol/muc#user"); - else - if to_occupant.role == "moderator" or jid_bare(to_occupant.jid) == jid_bare(from_occupant.jid) then - muc_child = stanza:get_child("x", "http://jabber.org/protocol/muc#user"); - end + -- If you are trying to give or take moderator role you need to be an owner or admin + if occupant.role == "moderator" or role == "moderator" then + local actor_affiliation = self:get_affiliation(actor); + if actor_affiliation ~= "owner" and actor_affiliation ~= "admin" then + return nil, "cancel", "not-allowed"; end end - end - if muc_child then - for _, item in pairs(muc_child.tags) do - if item.name == "item" then - if from_occupant == to_occupant then - item.attr.jid = stanza.attr.to; - else - item.attr.jid = from_occupant.jid; - end - end + + -- Need to be in the room and a moderator + local actor_occupant = self:get_occupant_by_real_jid(actor); + if not actor_occupant or actor_occupant.role ~= "moderator" then + return nil, "cancel", "not-allowed"; end end - self:route_stanza(stanza); - if muc_child then - for _, item in pairs(muc_child.tags) do - if item.name == "item" then - item.attr.jid = nil; - end - end + + local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}); + if not role then + x:tag("status", {code = "307"}):up(); end + occupant.role = role; + self:save_occupant(occupant); + self:publicise_occupant_status(occupant, x, nil, actor, reason); + if role == nil then + module:fire_event("muc-occupant-left", {room = self; nick = occupant.nick; occupant = occupant;}); + end + return true; end +local whois = module:require "muc/whois"; +room_mt.get_whois = whois.get; +room_mt.set_whois = whois.set; + local _M = {}; -- module "muc" function _M.new_room(jid, config) @@ -1179,17 +1430,109 @@ function _M.new_room(jid, config) jid = jid; _jid_nick = {}; _occupants = {}; - _data = { - whois = 'moderators'; - history_length = math.min((config and config.history_length) - or default_history_length, max_history_length); - }; + _data = config or {}; _affiliations = {}; + _affiliation_data = {}; }, room_mt); end -function _M.set_max_history_length(_max_history_length) - max_history_length = _max_history_length or math.huge; +local new_format = module:get_option_boolean("new_muc_storage_format", false); + +function room_mt:freeze(live) + local frozen, state; + if new_format then + frozen = { + _jid = self.jid; + _data = self._data; + }; + for user, affiliation in pairs(self._affiliations) do + frozen[user] = affiliation; + end + else + frozen = { + jid = self.jid; + _data = self._data; + _affiliations = self._affiliations; + _affiliation_data = self._affiliation_data; + }; + end + if live then + state = {}; + for nick, occupant in self:each_occupant() do + state[nick] = { + bare_jid = occupant.bare_jid; + role = occupant.role; + jid = occupant.jid; + } + for jid, presence in occupant:each_session() do + state[jid] = st.preserialize(presence); + end + end + local history = self._history; + if history and history[1] ~= nil then + state._last_message = st.preserialize(history[#history].stanza); + state._last_message_at = history[#history].timestamp; + end + end + return frozen, state; +end + +function _M.restore_room(frozen, state) + local room_jid = frozen._jid or frozen.jid; + local room = _M.new_room(room_jid, frozen._data); + + if state and state._last_message and state._last_message_at then + room._history = { + { stanza = st.deserialize(state._last_message), + timestamp = state._last_message_at, }, + }; + end + + local occupants = {}; + local room_name, room_host = jid_split(room_jid); + + room._affiliation_data = frozen._affiliation_data or {}; + + if frozen.jid and frozen._affiliations then + -- Old storage format + room._affiliations = frozen._affiliations; + else + -- New storage format + for jid, data in pairs(frozen) do + local node, host, resource = jid_split(jid); + if host:sub(1,1) ~= "_" and not resource and type(data) == "string" then + -- bare jid: affiliation + room._affiliations[jid] = data; + end + end + end + for jid, data in pairs(state or frozen) do + local node, host, resource = jid_split(jid); + if node or host:sub(1,1) ~= "_" then + if host == room_host and node == room_name and resource and type(data) == "table" then + -- full room jid: bare real jid and role + local nick = jid; + local occupant = occupants[nick] or occupant_lib.new(data.bare_jid, nick); + occupant.bare_jid = data.bare_jid; + occupant.role = data.role; + occupant.jid = data.jid; -- Primary session JID + occupants[nick] = occupant; + elseif type(data) == "table" and data.name == "presence" then + -- full user jid: presence + local nick = data.attr.from; + local occupant = occupants[nick] or occupant_lib.new(nil, nick); + local presence = st.deserialize(data); + occupant:set_session(jid, presence); + occupants[nick] = occupant; + end + end + end + + for _, occupant in pairs(occupants) do + room:save_occupant(occupant); + end + + return room; end _M.room_mt = room_mt; diff --git a/plugins/muc/name.lib.lua b/plugins/muc/name.lib.lua new file mode 100644 index 00000000..37fe1259 --- /dev/null +++ b/plugins/muc/name.lib.lua @@ -0,0 +1,48 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local jid_split = require "util.jid".split; + +local function get_name(room) + return room._data.name or jid_split(room.jid); +end + +local function set_name(room, name) + if name == "" then name = nil; end + if room._data.name == name then return false; end + room._data.name = name; + return true; +end + +local function insert_name_into_form(event) + table.insert(event.form, { + name = "muc#roomconfig_roomname"; + type = "text-single"; + label = "Title"; + value = event.room._data.name; + }); +end + +module:hook("muc-disco#info", function(event) + event.reply:tag("identity", {category="conference", type="text", name=get_name(event.room)}):up(); + insert_name_into_form(event); +end); + +module:hook("muc-config-form", insert_name_into_form, 100-1); + +module:hook("muc-config-submitted/muc#roomconfig_roomname", function(event) + if set_name(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +return { + get = get_name; + set = set_name; +}; diff --git a/plugins/muc/occupant.lib.lua b/plugins/muc/occupant.lib.lua new file mode 100644 index 00000000..8fe4bbdf --- /dev/null +++ b/plugins/muc/occupant.lib.lua @@ -0,0 +1,85 @@ +local pairs = pairs; +local setmetatable = setmetatable; +local st = require "util.stanza"; +local util = module:require "muc/util"; + +local function get_filtered_presence(stanza) + return util.filter_muc_x(st.clone(stanza)); +end + +local occupant_mt = {}; +occupant_mt.__index = occupant_mt; + +local function new_occupant(bare_real_jid, nick) + return setmetatable({ + bare_jid = bare_real_jid; + nick = nick; -- in-room jid + sessions = {}; -- hash from real_jid to presence stanzas. stanzas should not be modified + role = nil; + jid = nil; -- Primary session + }, occupant_mt); +end + +-- Deep copy an occupant +local function copy_occupant(occupant) + local sessions = {}; + for full_jid, presence_stanza in pairs(occupant.sessions) do + -- Don't keep unavailable presences, as they'll accumulate; unless they're the primary session + if presence_stanza.attr.type ~= "unavailable" or full_jid == occupant.jid then + sessions[full_jid] = presence_stanza; + end + end + return setmetatable({ + bare_jid = occupant.bare_jid; + nick = occupant.nick; + sessions = sessions; + role = occupant.role; + jid = occupant.jid; + }, occupant_mt); +end + +-- finds another session to be the primary (there might not be one) +function occupant_mt:choose_new_primary() + for jid, pr in self:each_session() do + if pr.attr.type == nil then + return jid; + end + end + return nil; +end + +function occupant_mt:set_session(real_jid, presence_stanza, replace_primary) + local pr = get_filtered_presence(presence_stanza); + pr.attr.from = self.nick; + pr.attr.to = real_jid; + + self.sessions[real_jid] = pr; + if replace_primary then + self.jid = real_jid; + elseif self.jid == nil or (pr.attr.type == "unavailable" and self.jid == real_jid) then + -- Only leave an unavailable presence as primary when there are no other options + self.jid = self:choose_new_primary() or real_jid; + end +end + +function occupant_mt:remove_session(real_jid) + -- Delete original session + self.sessions[real_jid] = nil; + if self.jid == real_jid then + self.jid = self:choose_new_primary(); + end +end + +function occupant_mt:each_session() + return pairs(self.sessions) +end + +function occupant_mt:get_presence(real_jid) + return self.sessions[real_jid or self.jid] +end + +return { + new = new_occupant; + copy = copy_occupant; + mt = occupant_mt; +} diff --git a/plugins/muc/password.lib.lua b/plugins/muc/password.lib.lua new file mode 100644 index 00000000..1f4b2add --- /dev/null +++ b/plugins/muc/password.lib.lua @@ -0,0 +1,80 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local st = require "util.stanza"; + +local function get_password(room) + return room._data.password; +end + +local function set_password(room, password) + if password == "" then password = nil; end + if room._data.password == password then return false; end + room._data.password = password; + return true; +end + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = get_password(event.room) and "muc_passwordprotected" or "muc_unsecured"}):up(); +end); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + name = "muc#roomconfig_roomsecret"; + type = "text-private"; + label = "Password"; + value = get_password(event.room) or ""; + }); +end, 90-2); + +module:hook("muc-config-submitted/muc#roomconfig_roomsecret", function(event) + if set_password(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +-- Don't allow anyone to join room unless they provide the password +module:hook("muc-occupant-pre-join", function(event) + local room, stanza = event.room, event.stanza; + if not get_password(room) then return end + local muc_x = stanza:get_child("x", "http://jabber.org/protocol/muc"); + if not muc_x then return end + local password = muc_x:get_child_text("password", "http://jabber.org/protocol/muc"); + if not password or password == "" then password = nil; end + if get_password(room) ~= password then + local from, to = stanza.attr.from, stanza.attr.to; + module:log("debug", "%s couldn't join due to invalid password: %s", from, to); + local reply = st.error_reply(stanza, "auth", "not-authorized"):up(); + reply.tags[1].attr.code = "401"; + event.origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end +end, -20); + +-- Add password to outgoing invite +module:hook("muc-invite", function(event) + local password = get_password(event.room); + if password then + local x = event.stanza:get_child("x", "http://jabber.org/protocol/muc#user"); + x:tag("password"):text(password):up(); + end +end); + +module:hook("muc-room-pre-create", function (event) + local stanza, room = event.stanza, event.room; + local muc_x = stanza:get_child("x", "http://jabber.org/protocol/muc"); + if not muc_x then return end + local password = muc_x:get_child_text("password", "http://jabber.org/protocol/muc"); + set_password(room, password); +end); + +return { + get = get_password; + set = set_password; +}; diff --git a/plugins/muc/persistent.lib.lua b/plugins/muc/persistent.lib.lua new file mode 100644 index 00000000..c3b16ea4 --- /dev/null +++ b/plugins/muc/persistent.lib.lua @@ -0,0 +1,58 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local restrict_persistent = not module:get_option_boolean("muc_room_allow_persistent", true); +local um_is_admin = require "core.usermanager".is_admin; + +local function get_persistent(room) + return room._data.persistent; +end + +local function set_persistent(room, persistent) + persistent = persistent and true or nil; + if get_persistent(room) == persistent then return false; end + room._data.persistent = persistent; + return true; +end + +module:hook("muc-config-form", function(event) + if restrict_persistent and not um_is_admin(event.actor, module.host) then + -- Don't show option if hidden rooms are restricted and user is not admin of this host + return; + end + table.insert(event.form, { + name = "muc#roomconfig_persistentroom"; + type = "boolean"; + label = "Persistent (room should remain even when it is empty)"; + desc = "Rooms are automatically deleted when they are empty, unless this option is enabled"; + value = get_persistent(event.room); + }); +end, 100-5); + +module:hook("muc-config-submitted/muc#roomconfig_persistentroom", function(event) + if restrict_persistent and not um_is_admin(event.actor, module.host) then + return; -- Not allowed + end + if set_persistent(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = get_persistent(event.room) and "muc_persistent" or "muc_temporary"}):up(); +end); + +module:hook("muc-room-destroyed", function(event) + set_persistent(event.room, false); +end, -100); + +return { + get = get_persistent; + set = set_persistent; +}; diff --git a/plugins/muc/register.lib.lua b/plugins/muc/register.lib.lua new file mode 100644 index 00000000..21cb3f2f --- /dev/null +++ b/plugins/muc/register.lib.lua @@ -0,0 +1,195 @@ +local jid_bare = require "util.jid".bare; +local jid_resource = require "util.jid".resource; +local resourceprep = require "util.encodings".stringprep.resourceprep; +local st = require "util.stanza"; +local dataforms = require "util.dataforms"; + +local allow_unaffiliated = module:get_option_boolean("allow_unaffiliated_register", false); + +local enforce_nick = module:get_option_boolean("enforce_registered_nickname", false); + +-- reserved_nicks[nick] = jid +local function get_reserved_nicks(room) + if room._reserved_nicks then + return room._reserved_nicks; + end + module:log("debug", "Refreshing reserved nicks..."); + local reserved_nicks = {}; + for jid in room:each_affiliation() do + local data = room._affiliation_data[jid]; + local nick = data and data.reserved_nickname; + module:log("debug", "Refreshed for %s: %s", jid, nick); + if nick then + reserved_nicks[nick] = jid; + end + end + room._reserved_nicks = reserved_nicks; + return reserved_nicks; +end + +-- Returns the registered nick, if any, for a JID +-- Note: this is just the *nick* part, i.e. the resource of the in-room JID +local function get_registered_nick(room, jid) + local registered_data = room._affiliation_data[jid]; + if not registered_data then + return; + end + return registered_data.reserved_nickname; +end + +-- Returns the JID, if any, that registered a nick (not in-room JID) +local function get_registered_jid(room, nick) + local reserved_nicks = get_reserved_nicks(room); + return reserved_nicks[nick]; +end + +module:hook("muc-set-affiliation", function (event) + -- Clear reserved nick cache + event.room._reserved_nicks = nil; +end); + +module:add_feature("jabber:iq:register"); + +module:hook("muc-disco#info", function (event) + event.reply:tag("feature", { var = "jabber:iq:register" }):up(); +end); + +local registration_form = dataforms.new { + { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#register" }, + { name = "muc#register_roomnick", type = "text-single", label = "Nickname"}, +}; + +local function enforce_nick_policy(event) + local origin, stanza = event.origin, event.stanza; + local room = assert(event.room); -- FIXME + if not room then return; end + + -- Check if the chosen nickname is reserved + local requested_nick = jid_resource(stanza.attr.to); + local reserved_by = get_registered_jid(room, requested_nick); + if reserved_by and reserved_by ~= jid_bare(stanza.attr.from) then + module:log("debug", "%s attempted to use nick %s reserved by %s", stanza.attr.from, requested_nick, reserved_by); + local reply = st.error_reply(stanza, "cancel", "conflict"):up(); + origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end + + -- Check if the occupant has a reservation they must use + if enforce_nick then + local nick = get_registered_nick(room, jid_bare(stanza.attr.from)); + if nick then + if event.occupant then + event.occupant.nick = jid_bare(event.occupant.nick) .. "/" .. nick; + elseif event.dest_occupant.nick ~= jid_bare(event.dest_occupant.nick) .. "/" .. nick then + module:log("debug", "Attempt by %s to join as %s, but their reserved nick is %s", stanza.attr.from, requested_nick, nick); + local reply = st.error_reply(stanza, "cancel", "not-acceptable"):up(); + origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"})); + return true; + end + end + end +end + +module:hook("muc-occupant-pre-join", enforce_nick_policy); +module:hook("muc-occupant-pre-change", enforce_nick_policy); + +-- Discovering Reserved Room Nickname +-- http://xmpp.org/extensions/xep-0045.html#reservednick +module:hook("muc-disco#info/x-roomuser-item", function (event) + local nick = get_registered_nick(event.room, jid_bare(event.stanza.attr.from)); + if nick then + event.reply:tag("identity", { category = "conference", type = "text", name = nick }) + end +end); + +local function handle_register_iq(room, origin, stanza) + local user_jid = jid_bare(stanza.attr.from) + local affiliation = room:get_affiliation(user_jid); + if affiliation == "outcast" then + origin.send(st.error_reply(stanza, "auth", "forbidden")); + return true; + elseif not (affiliation or allow_unaffiliated) then + origin.send(st.error_reply(stanza, "auth", "registration-required")); + return true; + end + local reply = st.reply(stanza); + local registered_nick = get_registered_nick(room, user_jid); + if stanza.attr.type == "get" then + reply:query("jabber:iq:register"); + if registered_nick then + reply:tag("registered"):up(); + reply:tag("username"):text(registered_nick); + origin.send(reply); + return true; + end + reply:add_child(registration_form:form()); + else -- type == set -- handle registration form + local query = stanza.tags[1]; + if query:get_child("remove") then + -- Remove "member" affiliation, but preserve if any other + local new_affiliation = affiliation ~= "member" and affiliation; + local ok, err_type, err_condition = room:set_affiliation(true, user_jid, new_affiliation, nil, false); + if not ok then + origin.send(st.error_reply(stanza, err_type, err_condition)); + return true; + end + origin.send(reply); + return true; + end + local form_tag = query:get_child("x", "jabber:x:data"); + local reg_data = form_tag and registration_form:data(form_tag); + if not reg_data then + origin.send(st.error_reply(stanza, "modify", "bad-request", "Error in form")); + return true; + end + -- Is the nickname valid? + local desired_nick = resourceprep(reg_data["muc#register_roomnick"]); + if not desired_nick then + origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid Nickname")); + return true; + end + -- Is the nickname currently in use by another user? + local current_occupant = room:get_occupant_by_nick(room.jid.."/"..desired_nick); + if current_occupant and current_occupant.bare_jid ~= user_jid then + origin.send(st.error_reply(stanza, "cancel", "conflict")); + return true; + end + -- Is the nickname currently reserved by another user? + local reserved_by = get_registered_jid(room, desired_nick); + if reserved_by and reserved_by ~= user_jid then + origin.send(st.error_reply(stanza, "cancel", "conflict")); + return true; + end + + if enforce_nick then + -- Kick any sessions that are not using this nick before we register it + local required_room_nick = room.jid.."/"..desired_nick; + for room_nick, occupant in room:each_occupant() do + if occupant.bare_jid == user_jid and room_nick ~= required_room_nick then + room:set_role(true, room_nick, nil); -- Kick (TODO: would be nice to use 333 code) + end + end + end + + -- Checks passed, save the registration + if registered_nick ~= desired_nick then + local registration_data = { reserved_nickname = desired_nick }; + local ok, err_type, err_condition = room:set_affiliation(true, user_jid, affiliation or "member", nil, registration_data); + if not ok then + origin.send(st.error_reply(stanza, err_type, err_condition)); + return true; + end + module:log("debug", "Saved nick registration for %s: %s", user_jid, desired_nick); + origin.send(reply); + return true; + end + end + origin.send(reply); + return true; +end + +return { + get_registered_nick = get_registered_nick; + get_registered_jid = get_registered_jid; + handle_register_iq = handle_register_iq; +} diff --git a/plugins/muc/request.lib.lua b/plugins/muc/request.lib.lua new file mode 100644 index 00000000..4e95fdc3 --- /dev/null +++ b/plugins/muc/request.lib.lua @@ -0,0 +1,132 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local st = require "util.stanza"; +local jid_resource = require "util.jid".resource; + +module:hook("muc-disco#info", function(event) + event.reply:tag("feature", {var = "http://jabber.org/protocol/muc#request"}):up(); +end); + +local voice_request_form = require "util.dataforms".new({ + title = "Voice Request"; + { + name = "FORM_TYPE"; + type = "hidden"; + value = "http://jabber.org/protocol/muc#request"; + }, + { + name = "muc#jid"; + type = "jid-single"; + label = "User ID"; + desc = "The user's JID (address)"; + }, + { + name = "muc#roomnick"; + type = "text-single"; + label = "Room nickname"; + desc = "The user's nickname within the room"; + }, + { + name = "muc#role"; + type = "list-single"; + label = "Requested role"; + value = "participant"; + options = { + "none", + "visitor", + "participant", + "moderator", + }; + }, + { + name = "muc#request_allow"; + type = "boolean"; + label = "Grant voice to this person?"; + desc = "Specify whether this person is able to speak in a moderated room"; + value = false; + } +}); + +local function handle_request(room, origin, stanza, form) + local occupant = room:get_occupant_by_real_jid(stanza.attr.from); + local fields = voice_request_form:data(form); + local event = { + room = room; + origin = origin; + stanza = stanza; + fields = fields; + occupant = occupant; + }; + if occupant.role == "moderator" then + module:log("debug", "%s responded to a voice request in %s", jid_resource(occupant.nick), room.jid); + module:fire_event("muc-voice-response", event); + else + module:log("debug", "%s requested voice in %s", jid_resource(occupant.nick), room.jid); + module:fire_event("muc-voice-request", event); + end +end + +module:hook("muc-voice-request", function(event) + if event.occupant.role == "visitor" then + local nick = jid_resource(event.occupant.nick); + local formdata = { + ["muc#jid"] = event.stanza.attr.from; + ["muc#roomnick"] = nick; + }; + + local message = st.message({ type = "normal"; from = event.room.jid }) + :add_child(voice_request_form:form(formdata)); + + event.room:broadcast(message, function (_, occupant) + return occupant.role == "moderator"; + end); + end +end); + +module:hook("muc-voice-response", function(event) + local actor = event.stanza.attr.from; + local affected_occupant = event.room:get_occupant_by_real_jid(event.fields["muc#jid"]); + local occupant = event.occupant; + + if occupant.role ~= "moderator" then + module:log("debug", "%s tried to grant voice but wasn't a moderator", jid_resource(occupant.nick)); + return; + end + + if not event.fields["muc#request_allow"] then + module:log("debug", "%s did not grant voice", jid_resource(occupant.nick)); + return; + end + + if not affected_occupant then + module:log("debug", "%s tried to grant voice to unknown occupant %s", + jid_resource(occupant.nick), event.fields["muc#jid"]); + return; + end + + if affected_occupant.role ~= "visitor" then + module:log("debug", "%s tried to grant voice to %s but they already have it", + jid_resource(occupant.nick), jid_resource(occupant.jid)); + return; + end + + module:log("debug", "%s granted voice to %s", jid_resource(event.occupant.nick), jid_resource(occupant.jid)); + local ok, errtype, err = event.room:set_role(actor, affected_occupant.nick, "participant", "Voice granted"); + + if not ok then + module:log("debug", "Error granting voice: %s", err or errtype); + event.origin.send(st.error_reply(event.stanza, errtype, err)); + end +end); + + +return { + handle_request = handle_request; +}; diff --git a/plugins/muc/subject.lib.lua b/plugins/muc/subject.lib.lua new file mode 100644 index 00000000..938abf61 --- /dev/null +++ b/plugins/muc/subject.lib.lua @@ -0,0 +1,119 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local st = require "util.stanza"; +local dt = require "util.datetime"; + +local muc_util = module:require "muc/util"; +local valid_roles = muc_util.valid_roles; + +local function create_subject_message(from, subject) + return st.message({from = from; type = "groupchat"}) + :tag("subject"):text(subject or ""):up(); +end + +local function get_changesubject(room) + return room._data.changesubject; +end + +local function set_changesubject(room, changesubject) + changesubject = changesubject and true or nil; + if get_changesubject(room) == changesubject then return false; end + room._data.changesubject = changesubject; + return true; +end + +module:hook("muc-disco#info", function (event) + table.insert(event.form, { + name = "muc#roominfo_changesubject"; + type = "boolean"; + }); + event.formdata["muc#roominfo_changesubject"] = get_changesubject(event.room); +end); + +module:hook("muc-config-form", function(event) + table.insert(event.form, { + name = "muc#roomconfig_changesubject"; + type = "boolean"; + label = "Allow anyone to set the room's subject"; + desc = "Choose whether anyone, or only moderators, may set the room's subject"; + value = get_changesubject(event.room); + }); +end, 80-1); + +module:hook("muc-config-submitted/muc#roomconfig_changesubject", function(event) + if set_changesubject(event.room, event.value) then + event.status_codes["104"] = true; + end +end); + +local function get_subject(room) + -- a <message/> stanza from the room JID (or from the occupant JID of the entity that set the subject) + return room._data.subject_from or room.jid, room._data.subject; +end + +local function send_subject(room, to, time) + local msg = create_subject_message(get_subject(room)); + msg.attr.to = to; + if time then + msg:tag("delay", { + xmlns = "urn:xmpp:delay", + from = room.jid, + stamp = dt.datetime(time); + }):up(); + end + room:route_stanza(msg); +end + +local function set_subject(room, from, subject) + if subject == "" then subject = nil; end + local old_from, old_subject = get_subject(room); + if old_subject == subject and old_from == from then return false; end + room._data.subject_from = from; + room._data.subject = subject; + room._data.subject_time = os.time(); + local msg = create_subject_message(from, subject); + room:broadcast_message(msg); + return true; +end + +-- Send subject to joining user +module:hook("muc-occupant-session-new", function(event) + send_subject(event.room, event.stanza.attr.from, event.room._data.subject_time); +end, 20); + +-- Prosody has made the decision that messages with <subject/> are exclusively subject changes +-- e.g. body will be ignored; even if the subject change was not allowed +module:hook("muc-occupant-groupchat", function(event) + local stanza = event.stanza; + local subject = stanza:get_child("subject"); + if subject then + local room = event.room; + local occupant = event.occupant; + -- Role check for subject changes + local role_rank = valid_roles[occupant and occupant.role or "none"]; + if role_rank >= valid_roles.moderator or + ( role_rank >= valid_roles.participant and get_changesubject(room) ) then -- and participant + set_subject(room, occupant.nick, subject:get_text()); + room:save(); + return true; + else + event.origin.send(st.error_reply(stanza, "auth", "forbidden", "You are not allowed to change the subject")); + return true; + end + end +end, 20); + +return { + get_changesubject = get_changesubject; + set_changesubject = set_changesubject; + get = get_subject; + set = set_subject; + send = send_subject; +}; diff --git a/plugins/muc/util.lib.lua b/plugins/muc/util.lib.lua new file mode 100644 index 00000000..53a83fae --- /dev/null +++ b/plugins/muc/util.lib.lua @@ -0,0 +1,67 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local _M = {}; + +_M.valid_affiliations = { + outcast = -1; + none = 0; + member = 1; + admin = 2; + owner = 3; +}; + +_M.valid_roles = { + none = 0; + visitor = 1; + participant = 2; + moderator = 3; +}; + +local kickable_error_conditions = { + ["gone"] = true; + ["internal-server-error"] = true; + ["item-not-found"] = true; + ["jid-malformed"] = true; + ["recipient-unavailable"] = true; + ["redirect"] = true; + ["remote-server-not-found"] = true; + ["remote-server-timeout"] = true; + ["service-unavailable"] = true; + ["malformed error"] = true; +}; +function _M.is_kickable_error(stanza) + local cond = select(2, stanza:get_error()) or "malformed error"; + return kickable_error_conditions[cond]; +end + +local muc_x_filters = { + ["http://jabber.org/protocol/muc"] = true; + ["http://jabber.org/protocol/muc#user"] = true; +} +local function muc_x_filter(tag) + if muc_x_filters[tag.attr.xmlns] then + return nil; + end + return tag; +end +function _M.filter_muc_x(stanza) + return stanza:maptags(muc_x_filter); +end + +function _M.only_with_min_role(role) + local min_role_value = _M.valid_roles[role]; + return function (nick, occupant) --luacheck: ignore 212/nick + if _M.valid_roles[occupant.role or "none"] >= min_role_value then + return true; + end + end; +end + +return _M; diff --git a/plugins/muc/whois.lib.lua b/plugins/muc/whois.lib.lua new file mode 100644 index 00000000..636d7c59 --- /dev/null +++ b/plugins/muc/whois.lib.lua @@ -0,0 +1,66 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain +-- Copyright (C) 2014 Daurnimator +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local valid_whois = { + moderators = true; + anyone = true; +}; + +local function get_whois(room) + return room._data.whois or "moderators"; +end + +local function set_whois(room, whois) + assert(valid_whois[whois], "Invalid whois value") + if get_whois(room) == whois then return false; end + room._data.whois = whois; + return true; +end + +module:hook("muc-disco#info", function(event) + local whois = get_whois(event.room) ~= "anyone" and "muc_semianonymous" or "muc_nonanonymous"; + event.reply:tag("feature", { var = whois }):up(); +end); + +module:hook("muc-config-form", function(event) + local whois = get_whois(event.room); + table.insert(event.form, { + name = 'muc#roomconfig_whois', + type = 'list-single', + label = 'Addresses (JIDs) of room occupants may be viewed by:', + options = { + { value = 'moderators', label = 'Moderators only', default = whois == 'moderators' }, + { value = 'anyone', label = 'Anyone', default = whois == 'anyone' } + } + }); +end, 80-4); + +module:hook("muc-config-submitted/muc#roomconfig_whois", function(event) + if set_whois(event.room, event.value) then + local code = (event.value == 'moderators') and "173" or "172"; + event.status_codes[code] = true; + end +end); + +-- Mask 'from' jid as occupant jid if room is anonymous +module:hook("muc-invite", function(event) + local room, stanza = event.room, event.stanza; + if get_whois(room) == "moderators" and room:get_default_role(room:get_affiliation(stanza.attr.to)) ~= "moderator" then + local invite = stanza:get_child("x", "http://jabber.org/protocol/muc#user"):get_child("invite"); + local occupant_jid = room:get_occupant_jid(invite.attr.from); + if occupant_jid ~= nil then -- FIXME: This will expose real jid if inviter is not in room + invite.attr.from = occupant_jid; + end + end +end, 50); + +return { + get = get_whois; + set = set_whois; +}; |