Mercurial > prosody-modules
annotate mod_auto156/mod_auto156.lua @ 5616:59d5fc50f602
mod_http_oauth2: Implement refresh token rotation
Makes refresh tokens one-time-use, handing out a new refresh token with
each access token. Thus if a refresh token is stolen and used by an
attacker, the next time the legitimate client tries to use the previous
refresh token, it will not work and the attack will be noticed. If the
attacker does not use the refresh token, it becomes invalid after the
legitimate client uses it.
This behavior is recommended by draft-ietf-oauth-security-topics
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 23 Jul 2023 02:56:08 +0200 |
parents | 5d494dba9c02 |
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1 -- Synthesize XEP-0156 JSON from DNS |
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2 local array = require "util.array"; |
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3 local encodings = require "util.encodings"; |
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4 local json = require "util.json"; |
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5 local promise = require "util.promise"; |
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6 |
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7 local dns = require"net.adns".resolver(); |
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8 |
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9 local function check_dns(domain) |
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10 return dns:lookup_promise("_xmppconnect." .. domain, "TXT"); |
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11 end |
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12 |
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13 local function check_domain(domain) |
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14 return promise.resolve(domain):next(encodings.stringprep.nameprep):next(encodings.idna.to_ascii):next( |
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15 function(domain_A) |
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16 if not domain_A then |
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17 return promise.reject(400); |
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18 else |
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19 return domain_A; |
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20 end |
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21 end):next(check_dns):next(function(txt) |
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22 local uris = array(); |
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23 for _, cm in ipairs(txt) do |
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24 local kind, uri = tostring(cm.txt):match("^_xmpp%-client%-(%w+)=([hpstw]+s?://.*)"); |
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25 if kind then |
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26 uris:push({rel = "urn:xmpp:alt-connections:" .. kind, href = uri}); |
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27 end |
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28 end |
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29 if #uris == 0 then |
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30 return promise.reject(404); |
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31 end |
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32 return {links=uris}; |
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33 end); |
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34 end |
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35 |
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36 module:depends("http"); |
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37 module:provides("http", { |
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38 route = { |
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39 ["GET /*"] = function(_, domain) |
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40 return check_domain(domain):next(function(altmethods) |
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41 return {headers = {content_type = "application/json"}, body = json.encode(altmethods)}; |
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42 end); |
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43 end, |
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44 }, |
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45 }); |
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46 |
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47 function module.command(args) |
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48 local async = require "util.async"; |
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49 for _, domain in ipairs(args) do |
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50 print(assert(async.wait_for(check_domain(domain):next(json.encode)))); |
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51 end |
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52 end |