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annotate mod_auto156/mod_auto156.lua @ 5223:8b2a36847912

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mod_http_oauth2: Support HTTP Basic auth on token endpoint This is described in RFC 6749 section 2.3.1 and draft-ietf-oauth-v2-1-07 2.3.1 as the recommended way to transmit the client's credentials. The older spec even calls it the "client password", but the new spec clarifies that this is just another term for the client secret.
author Matthew Wild <mwild1@gmail.com>
date Tue, 07 Mar 2023 15:27:50 +0000
parents 5d494dba9c02
children
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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