Mercurial > prosody-modules
view mod_flash_policy/mod_flash_policy.lua @ 5461:06640647d193
mod_http_oauth2: Fix use of arbitrary ports in loopback redirect URIs
Per draft-ietf-oauth-v2-1-08#section-8.4.2
> The authorization server MUST allow any port to be specified at the
> time of the request for loopback IP redirect URIs, to accommodate
> clients that obtain an available ephemeral port from the operating
> system at the time of the request.
Uncertain if it should normalize the host part, but it also seems
harmless to treat IPv6 and IPv4 the same here.
One thing is that "localhost" is NOT RECOMMENDED because it can
sometimes be pointed to non-loopback interfaces via DNS or hosts file.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 17 May 2023 13:51:30 +0200 |
parents | 7dbde05b48a9 |
children |
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local filters = require "util.filters"; local config = {} config.file = module:get_option_string("crossdomain_file", ""); config.string = module:get_option_string("crossdomain_string", [[<?xml version="1.0"?><!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd"><cross-domain-policy><site-control permitted-cross-domain-policies="master-only"/><allow-access-from domain="*" /></cross-domain-policy>]]); local string = '' if not config.file ~= '' then local f = assert(io.open(config.file)); string = f:read("*all"); else string = config.string end module:log("debug", "crossdomain string: "..string); module:set_global(); function filter_policy(data, session) -- Since we only want to check the first block of data, remove the filter filters.remove_filter(session, "bytes/in", filter_policy); if data == "<policy-file-request/>\0" then session.send(string.."\0"); return nil; -- Drop data to prevent it reaching the XMPP parser else return data; -- Pass data through, it wasn't a policy request end end function filter_session(session) if session.type == "c2s_unauthed" then filters.add_filter(session, "bytes/in", filter_policy, -1); end end function module.load() filters.add_filter_hook(filter_session); end function module.unload() filters.remove_filter_hook(filter_session); end