Mercurial > prosody-modules
view mod_mam_adhoc/mod_mam_adhoc.lua @ 5193:2bb29ece216b
mod_http_oauth2: Implement stateless dynamic client registration
Replaces previous explicit registration that required either the
additional module mod_adhoc_oauth2_client or manually editing the
database. That method was enough to have something to test with, but
would not probably not scale easily.
Dynamic client registration allows creating clients on the fly, which
may be even easier in theory.
In order to not allow basically unauthenticated writes to the database,
we implement a stateless model here.
per_host_key := HMAC(config -> oauth2_registration_key, hostname)
client_id := JWT { client metadata } signed with per_host_key
client_secret := HMAC(per_host_key, client_id)
This should ensure everything we need to know is part of the client_id,
allowing redirects etc to be validated, and the client_secret can be
validated with only the client_id and the per_host_key.
A nonce injected into the client_id JWT should ensure nobody can submit
the same client metadata and retrieve the same client_secret
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 03 Mar 2023 21:14:19 +0100 (2023-03-03) |
parents | 27b41ee61601 |
children |
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module:depends"adhoc"; local dataforms_new = require "util.dataforms".new; local jid_split = require "util.jid".split; local t_insert = table.insert; local prefs = module:require"mod_mam/mamprefs"; local set_prefs, get_prefs = prefs.set, prefs.get; local mam_prefs_form = dataforms_new{ title = "Archive preferences"; --instructions = ""; { name = "default", label = "Default storage policy", type = "list-single", value = { { value = "always", label = "Always" }, { value = "never", label = "Never", default = true}, { value = "roster", label = "Roster" }, }, }; { name = "always", label = "Always store messages to/from", type = "jid-multi" }; { name = "never", label = "Never store messages to/from", type = "jid-multi" }; }; local host = module.host; local default_attrs = { always = true, [true] = "always", never = false, [false] = "never", roster = "roster", } local function mam_prefs_handler(self, data, state) local username = jid_split(data.from); if state then -- the second return value if data.action == "cancel" then return { status = "canceled" }; end local fields = mam_prefs_form:data(data.form); local default, always, never = fields.default, fields.always, fields.never; local prefs = {}; if default then prefs[false] = default_attrs[default]; end if always then for i=1,#always do prefs[always[i]] = true; end end if never then for i=1,#never do prefs[never[i]] = false; end end set_prefs(username, prefs); return { status = "completed" } else -- No state, send the form. local prefs = get_prefs(username); local values = { default = { { value = "always", label = "Always" }; { value = "never", label = "Never" }; { value = "roster", label = "Roster" }; }; always = {}; never = {}; }; for jid, p in pairs(prefs) do if jid then t_insert(values[p and "always" or "never"], jid); elseif p == true then -- Yes, this is ugly. FIXME later. values.default[1].default = true; elseif p == false then values.default[2].default = true; elseif p == "roster" then values.default[3].default = true; end end return { status = "executing", actions = { "complete" }, form = { layout = mam_prefs_form, values = values } }, true; end end module:provides("adhoc", module:require"adhoc".new("Archive settings", "urn:xmpp:mam#configure", mam_prefs_handler, "local_user"));