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mod_readonly/mod_readonly.lua @ 5086:dec4b2e31d1c
mod_rest: Do not allow replies to <iq type=result> from webhooks
Replying to a result stanza could cause loops, just as replying to an
error.
No stanza.name check here but it should be fine since no other kinds of
stanzas have type=result, and the boolean logic would most definitely be
wrong on the first attempt.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 27 Nov 2022 00:10:38 +0100 |
parent | 3270:7776c9dc5f37 |
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local st = require "util.stanza"; local stores = module:get_option("readonly_stores", { vcard = { "vcard-temp", "vCard" }; }); local namespaces = {}; for name, namespace in pairs(stores) do namespaces[table.concat(namespace, ":")] = name; end local function prevent_write(event) local stanza = event.stanza; local xmlns_and_tag = stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name; local store_name = namespaces[xmlns_and_tag]; if store_name then module:log("warn", "Preventing modification of %s store by %s", store_name, stanza.attr.from); event.origin.send(st.error_reply(stanza, "cancel", "not-allowed", store_name.." data is read-only")); return true; -- Block stanza end end for namespace in pairs(namespaces) do module:hook("iq-set/bare/"..namespace, prevent_write, 200); end