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mod_export_skeletons/mod_export_skeletons.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 |
parent | 4821:17fbe82d4bfe |
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local t_insert = table.insert; local t_sort = table.sort; local sm = require "core.storagemanager"; local um = require "core.usermanager"; local argparse = require "util.argparse"; local dt = require "util.datetime"; local jid = require "util.jid"; local st = require "util.stanza"; local function skeleton(s) local o = st.stanza(s.name, { xmlns = s.attr.xmlns }); local children = {}; for _, child in ipairs(s.tags) do t_insert(children, skeleton(child)) end t_sort(children, function(a, b) if a.attr.xmlns == b.attr.xmlns then return a.name < b.name; end return (a.attr.xmlns or "") < (b.attr.xmlns or ""); end); for _, child in ipairs(children) do o:add_direct_child(child); end return o; end local function classify_jid(s) if not s then return "" end local u, h, r = jid.split(s); if r then return "full" elseif u then return "bare" elseif h then return "host" else return "invalid" end end function module.command(arg) local opts = argparse.parse(arg, { value_params = { store = true; with = true; start = true; ["end"] = true } }); local store = opts.store or "archive"; -- so you can pass 'archive2' opts.store = nil; local query = { with = jid.prep(opts.with); start = dt.parse(opts.start); ["end"] = dt.parse(opts["end"]) }; local host_initialized = {}; for _, export_jid in ipairs(arg) do local username, host = jid.split(export_jid); if not host_initialized[host] then sm.initialize_host(host); um.initialize_host(host); host_initialized[host] = true; end local archive = module:context(host):open_store(store, "archive"); local iter, total = assert(archive:find(username, query)) if total then io.stderr:write(string.format("Processing %d entries\n", total)); end for _, item in iter do local clean = skeleton(item); -- Normalize top level attributes clean.attr.type = item.attr.type; if clean.attr.type == nil and clean.name == "message" then clean.attr.type = "normal"; end clean.attr.id = string.rep("x", math.floor(math.log(1+#(item.attr.id or ""), 2))); clean.attr.from = classify_jid(item.attr.from); clean.attr.to = classify_jid(item.attr.to); print(clean); end end end