Mercurial > prosody-modules
view mod_onions/README.markdown @ 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 | 36b5677b9648 |
children |
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--- labels: - 'Stage-Alpha' summary: s2s to Tor hidden services ... Introduction ============ This plugin allows Prosody to connect to other servers that are running as a Tor hidden service. Running Prosody on a hidden service works without this module, this module is only necessary to allow Prosody to federate to hidden XMPP servers. For general info about creating a hidden service, see [https://community.torproject.org/onion-services/setup/](https://community.torproject.org/onion-services/setup/). Usage ===== This module depends on the bit32 Lua library. To create a hidden service that can federate with other hidden XMPP servers, first add a hidden serivce to Tor. It should listen on port 5269 and optionally also on 5222 (if c2s connections to the hidden service should be allowed). Use the hostname that Tor gives with a virtualhost: VirtualHost "555abcdefhijklmn.onion" modules_enabled = { "onions" }; Configuration ============= Name Description Type Default value ---------------------- ----------------------------------------------------- --------- --------------- onions\_socks5\_host the host to connect to for Tor's SOCKS5 proxy string "127.0.0.1" onions\_socks5\_port the port to connect to for Tor's SOCKS5 proxy integer 9050 onions\_only forbid all connection attempts to non-onion servers boolean false onions\_tor\_all pass all s2s connections through Tor boolean false onions\_map override the address for a host table {} By setting `onions_map`, it is possible to override the address used to connect to a given host with the address of a hidden service. The configuration of `onions_map` works as follows: onions_map = { ["jabber.calyxinstitute.org"] = "ijeeynrc6x2uy5ob.onion"; } or, to also specify a port: onions_map = { ["jabber.calyxinstitute.org"] = { host = "ijeeynrc6x2uy5ob.onion", port = 5269 }; } Compatibility ============= ----- -------------- 0.8 Doesn't work 0.9 Works ----- -------------- Notes ===== - `onions_tor_all` does not look up SRV records first. Therefore it will fail for many servers. - mod\_onions currently does not support connecting to `.onion` entries in SRV records. Security considerations ======================= - Running a hidden service on a server together with a normal server might expose the hidden service. - A hidden service that wants to remain hidden should either disallow s2s to non-hidden servers or pass all s2s traffic through Tor (setting either `onions_only` or `onions_tor_all`).