Mercurial > prosody-modules
view mod_muc_restrict_media/mod_muc_restrict_media.lua @ 5616:59d5fc50f602
mod_http_oauth2: Implement refresh token rotation
Makes refresh tokens one-time-use, handing out a new refresh token with
each access token. Thus if a refresh token is stolen and used by an
attacker, the next time the legitimate client tries to use the previous
refresh token, it will not work and the attack will be noticed. If the
attacker does not use the refresh token, it becomes invalid after the
legitimate client uses it.
This behavior is recommended by draft-ietf-oauth-security-topics
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 23 Jul 2023 02:56:08 +0200 |
parents | 1682166171ff |
children |
line wrap: on
line source
module:depends"muc"; local restrict_by_default = 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 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 strip_xhtml_img(tag) if tag.attr.xmlns == "http://www.w3.org/1999/xhtml" and tag.name == "img" then tag.name = "i"; tag:text(tag.attr.alt or "<image blocked>"); tag.attr = { xmlns = tag.attr.xmlns, title = tag.attr.title }; tag:maptags(strip_xhtml_img); else tag:maptags(strip_xhtml_img); end return tag; 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 elseif xmlns == "http://jabber.org/protocol/xhtml-im" then return strip_xhtml_img(tag); end return tag; end module:hook("muc-occupant-groupchat", function (event) local stanza = event.stanza; if stanza.attr.type ~= "groupchat" then return; end if event.room:get_affiliation(stanza.attr.from) then return end if should_restrict_media(event.room) then stanza:maptags(filter_media_tags); end end, 20);