Mercurial > prosody-modules
view mod_pubsub_text_interface/mod_pubsub_text_interface.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 | e0d0ef564095 |
children |
line wrap: on
line source
local st = require "util.stanza"; local jid = require "util.jid"; local id = require "util.id"; local pubsub = module:depends "pubsub".service; local xmlns_quick_resp = "urn:xmpp:tmp:quick-response"; local name = module:get_option_string("name", "PubSub Service on "..module.host); local help = name..[[ Commands: - `help` - this help message - `list` - list available nodes - `subscriptions` - list nodes you are subscribed to - `subscribe NODE` - subscribe to a node - `unsubscribe NODE` - unsubscribe from a node]]; if pubsub.get_last_item then -- COMPAT not available in 0.10 help = help .. "\n- `last NODE` - send the last item (again)" end -- FIXME better word for "node" local friendly_pubsub_errors = { ["forbidden"] = "You are not allowed to do that"; ["item-not-found"] = "That node does not exist"; ["internal-server-error"] = "Something went wrong (see server logs)"; ["not-subscribed"] = "You were not subscribed"; }; module:hook("message/host", function (event) local stanza = event.stanza; local body = stanza:get_child_text("body"); if not body then return end -- bail out local from = stanza.attr.from; local reply = st.reply(stanza); reply.attr.id = id.medium(); local command, node_arg = body:match("^(%a+)%s+(.*)"); command = (command or body):lower(); if command == "help" then reply:body(help):up(); reply:tag("response", { xmlns = xmlns_quick_resp, value = "list", }):up(); reply:tag("response", { xmlns = xmlns_quick_resp, value = "subscriptions", }):up(); elseif command == "list" then local ok, nodes = pubsub:get_nodes(from); if ok then local list = {}; for node, node_obj in pairs(nodes) do table.insert(list, ("- `%s` %s"):format(node, node_obj.config.title or "")); end reply:body(table.concat(list, "\n")); else reply:body(friendly_pubsub_errors[nodes] or nodes); end elseif command == "subscriptions" then local ok, subs = pubsub:get_subscriptions(nil, from, from); if not ok then reply:body(friendly_pubsub_errors[subs] or subs); elseif #subs == 0 then reply:body("You are not subscribed to anything from this pubsub service"); else local response = {}; for i = 1, #subs do response[i] = string.format("- `%s`", subs[i].node); reply:tag("response", { xmlns = xmlns_quick_resp, value = "unsubscribe "..subs[i].node, }):up(); reply:tag("response", { xmlns = xmlns_quick_resp, value = "last "..subs[i].node, }):up(); end reply:body(table.concat(response, "\n")); end elseif command == "subscribe" then local ok, err = pubsub:add_subscription(node_arg, from, jid.bare(from), { ["pubsub#include_body"] = true }); reply:body(ok and "OK" or friendly_pubsub_errors[err] or err); elseif command == "unsubscribe" then local ok, err = pubsub:remove_subscription(node_arg, from, jid.bare(from)); reply:body(ok and "OK" or friendly_pubsub_errors[err] or err); elseif command == "last" and pubsub.get_last_item then local ok, item_id, item = pubsub:get_last_item(node_arg, from); if not ok then reply:body(friendly_pubsub_errors[item_id] or item_id); elseif not item_id then reply:body("That node does not contain any items"); else pubsub.config.broadcaster("items", node_arg, { [from] = { ["pubsub#include_body"] = true } }, item, nil, pubsub.nodes[node_arg]); reply:body("OK"); end else reply:body("Unknown command. `help` to list commands."):up(); reply:tag("response", { xmlns = xmlns_quick_resp, value = "help", }):up(); end reply:reset(); if stanza:get_child("no-copy", "urn:xmpp:hints") then reply:tag("no-copy", { xmlns = "urn:xmpp:hints" }):up(); end if stanza:get_child("no-store", "urn:xmpp:hints") then reply:tag("no-store", { xmlns = "urn:xmpp:hints" }):up(); end module:send(reply); return true; end);