annotate mod_http_auth_check/mod_http_auth_check.lua @ 5173:460f78654864

mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.
author Jonas Schäfer <jonas@wielicki.name>
date Tue, 21 Feb 2023 21:37:27 +0100
parents 5ca6d53d3186
children
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1 -- HTTP Is User Valid
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2 -- By Nicolas Cedilnik <nicoco@nicoco.fr>
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3
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4 local jid_prep = require "util.jid".prep;
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5 local jid_split = require "util.jid".split;
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6 local test_password = require "core.usermanager".test_password;
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7 local b64_decode = require "util.encodings".base64.decode;
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8 local saslprep = require "util.encodings".stringprep.saslprep;
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9 local realm = module:get_host() .. "/" .. module:get_name();
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10 module:depends"http";
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11
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12 local function authenticate (event, path)
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13 local request = event.request;
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14 local response = event.response;
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15 local headers = request.headers;
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16 if not headers.authorization then
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17 response.headers.www_authenticate = ("Basic realm=%q"):format(realm);
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18 return 401
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19 end
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20 local from_jid, password = b64_decode(headers.authorization:match"[^ ]*$"):match"([^:]*):(.*)";
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21 from_jid = jid_prep(from_jid);
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22 password = saslprep(password);
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23 if from_jid and password then
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24 local user, host = jid_split(from_jid);
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25 local ok, err = test_password(user, host, password);
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26 if ok and user and host then
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27 return 200
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28 elseif err then
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29 return 401
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30 end
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31 end
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32 end
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33
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34 module:provides("http", {
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35 route = {
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36 GET = authenticate
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37 };
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38 });