module:depends"muc"; local restrict_by_default = not module:get_option_boolean("muc_room_default_restrict_media", true); local function should_restrict_media(room) local restrict_media = room._data.restrict_media; if restrict_media == nil then restrict_media = restrict_by_default; end return restrict_media; end module:hook("muc-config-form", function(event) local room, form = event.room, event.form; table.insert(form, { name = "{xmpp:prosody.im}muc#roomconfig_unaffiliated_media", type = "boolean", label = "Display inline media (images, etc.) from non-members", value = not should_restrict_media(room), }); end); module:hook("muc-config-submitted", function(event) local room, fields, changed = event.room, event.fields, event.changed; local new_restrict_media = not fields["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"]; if new_restrict_media ~= should_restrict_media(room) then if new_restrict_media == restrict_by_default(room) then room._data.restrict_media = nil; else room._data.restrict_media = new_restrict_media; end if type(changed) == "table" then changed["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"] = true; else event.changed = true; end end end); module:hook("muc-disco#info", function (event) local room, form, formdata = event.room, event.form, event.formdata; local allow_unaffiliated_media = not should_restrict_media(room); table.insert(form, { name = "{xmpp:prosody.im}muc#roomconfig_unaffiliated_media", type = "boolean", }); formdata["{xmpp:prosody.im}muc#roomconfig_unaffiliated_media"] = allow_unaffiliated_media; end); local function filter_media_tags(tag) local xmlns = tag.attr.xmlns; if xmlns == "jabber:x:oob" then return nil; elseif xmlns == "urn:xmpp:reference:0" then if tag:get_child("media-sharing", "urn:xmpp:sims:1") then return nil; end end return tag; end module:hook("muc-occupant-groupchat", function (event) local stanza = event.stanza; if stanza.attr.type ~= "groupchat" then return; end if should_restrict_media(event.room) then stanza:maptags(filter_media_tags); end end, 20);