diff -r 97c9b76867ca -r fcfe490de8a4 mod_spam_report_forwarder/mod_spam_report_forwarder.lua --- a/mod_spam_report_forwarder/mod_spam_report_forwarder.lua Sun Mar 03 11:23:40 2024 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,139 +0,0 @@ -local dt = require "util.datetime"; -local jid = require "util.jid"; -local st = require "util.stanza"; -local url = require "socket.url"; - -local new_id = require "util.id".short; -local render = require"util.interpolation".new("%b{}", function (s) return s; end); - -local destinations = module:get_option_set("spam_report_destinations", {}); - -local archive = module:open("archive"); - -local cache_size = module:get_option_number("spam_report_forwarder_contact_cache_size", 256); -local report_to_origin = module:get_option_boolean("spam_report_forwarder_to_origin", true); -local contact_lookup_timeout = module:get_option_number("spam_report_forwarder_contact_lookup_timeout", 180); - -local body_template = module:get_option_string("spam_report_forwarder_body_template", [[ -SPAM/ABUSE REPORT ------------------ - -Reported JID: {reported_jid} - -A user on our service has reported a message originating from the above JID on -your server. - -{reported_message_time&The reported message was sent at: {reported_message_time}} - --- -This message contains also machine-readable payloads, including XEP-0377, in case -you want to automate handling of these reports. You can receive these reports -to a different address by setting 'spam-report-addresses' in your server -contact info configuration. For more information, see https://xmppbl.org/reports/ -]]):gsub("^%s+", ""):gsub("(%S)\n(%S)", "%1 %2"); - -local report_addresses = require "util.cache".new(cache_size); - -local function get_address(form, ...) - for i = 1, select("#", ...) do - local field_var = select(i, ...); - local field = form:get_child_with_attr("field", "jabber:x:data", "var", field_var); - if field then - local parsed = url.parse(field:get_child_text("value")); - if parsed.scheme == "xmpp" and parsed.path and not parsed.query then - return parsed.path; - end - end - end -end - -local function get_origin_report_address(reported_jid) - local host = jid.host(reported_jid); - local address = report_addresses:get(host); - if address then return address; end - - local contact_query = st.iq({ to = host, from = module.host, id = new_id() }) - :query("http://jabber.org/protocol/disco#info"); - - return module:send_iq(contact_query, prosody.hosts[module.host], contact_lookup_timeout) - :next(function (response) - if response.attr.type ~= "result" then return; end - - for form in response.tags[1]:childtags("x", "jabber:x:data") do - local form_type = form:get_child_with_attr("field", nil, "var", "FORM_TYPE"); - if form_type == "http://jabber.org/network/serverinfo" then - address = get_address(form, "spam-report-addresses", "abuse-addresses"); - break; - end - end - return address; - end); -end - -local function send_report(to, message) - local m = st.clone(message); - m.attr.to = to; - module:send(m); -end - -function forward_report(event) - local reporter_username = event.origin.username; - local reporter_jid = jid.join(reporter_username, module.host); - local reported_jid = event.jid; - - local report = st.clone(event.report); - report:text_tag("jid", reported_jid, { xmlns = "urn:xmpp:jid:0" }); - - local reported_message_id = report:get_child_with_attr( - "stanza-id", - "urn:xmpp:sid:0", - "by", - reported_jid, - jid.prep - ); - - local reported_message, reported_message_time, reported_message_with; - if reported_message_id then - reported_message, reported_message_time, reported_message_with = archive:get(reporter_username, reported_message_id); - if jid.bare(reported_message_with) ~= event.jid then - reported_message = nil; - end - end - - local body_text = render(body_template, { - reporter_jid = reporter_jid; - reported_jid = event.jid; - reported_message_time = dt.datetime(reported_message_time); - }); - - local message = st.message({ from = module.host }) - :text_tag("body", body_text) - :add_child(report); - - if reported_message then - reported_message.attr.xmlns = "jabber:client"; - local fwd = st.stanza("forwarded", { xmlns = "urn:xmpp:forward:0" }) - :tag("delay", { xmlns = "urn:xmpp:delay", stamp = dt.datetime(reported_message_time) }):up() - :add_child(reported_message); - message:add_child(fwd); - end - - for destination in destinations do - send_report(destination, message); - end - - if report_to_origin then - module:log("debug", "Sending report to origin server..."); - get_origin_report_address(event.jid):next(function (origin_report_address) - if not origin_report_address then - module:log("warn", "Couldn't report to origin: no contact address found for %s", jid.host(event.jid)); - return; - end - send_report(origin_report_address, message); - end); - end -end - -module:hook("spam_reporting/abuse-report", forward_report, -1); -module:hook("spam_reporting/spam-report", forward_report, -1); -module:hook("spam_reporting/unknown-report", forward_report, -1);