Software /
code /
prosody-modules
File
mod_auto156/mod_auto156.lua @ 5186:fa3059e653fa
mod_http_oauth2: Implement the Implicit flow
Everyone says this is insecure and bad, but it's also the only thing
that makes sense for e.g. pure JavaScript clients, but hey implement
this even more complicated thing instead!
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Thu, 02 Mar 2023 22:06:50 +0100 |
parent | 4614:5d494dba9c02 |
line wrap: on
line source
-- Synthesize XEP-0156 JSON from DNS local array = require "util.array"; local encodings = require "util.encodings"; local json = require "util.json"; local promise = require "util.promise"; local dns = require"net.adns".resolver(); local function check_dns(domain) return dns:lookup_promise("_xmppconnect." .. domain, "TXT"); end local function check_domain(domain) return promise.resolve(domain):next(encodings.stringprep.nameprep):next(encodings.idna.to_ascii):next( function(domain_A) if not domain_A then return promise.reject(400); else return domain_A; end end):next(check_dns):next(function(txt) local uris = array(); for _, cm in ipairs(txt) do local kind, uri = tostring(cm.txt):match("^_xmpp%-client%-(%w+)=([hpstw]+s?://.*)"); if kind then uris:push({rel = "urn:xmpp:alt-connections:" .. kind, href = uri}); end end if #uris == 0 then return promise.reject(404); end return {links=uris}; end); end module:depends("http"); module:provides("http", { route = { ["GET /*"] = function(_, domain) return check_domain(domain):next(function(altmethods) return {headers = {content_type = "application/json"}, body = json.encode(altmethods)}; end); end, }, }); function module.command(args) local async = require "util.async"; for _, domain in ipairs(args) do print(assert(async.wait_for(check_domain(domain):next(json.encode)))); end end