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annotate mod_sasl_oauthbearer/mod_sasl_oauthbearer.lua @ 4260:c539334dd01a

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mod_http_oauth2: Rescope oauth client config into users' storage This produces client_id of the form owner@host/random and prevents clients from being deleted by registering an account with the same name and then deleting the account, as well as having the client automatically be deleted when the owner account is removed. On one hand, this leaks the bare JID of the creator to users. On the other hand, it makes it obvious who made the oauth application. This module is experimental and only for developers, so this can be changed if a better method comes up.
author Kim Alvefur <zash@zash.se>
date Sat, 21 Nov 2020 23:55:10 +0100
parents 73ada978dabc
children
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1 local s_match = string.match;
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2 local registerMechanism = require "util.sasl".registerMechanism;
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3 local saslprep = require "util.encodings".stringprep.saslprep;
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4 local nodeprep = require "util.encodings".stringprep.nodeprep;
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5 local log = require "util.logger".init("sasl");
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6 local _ENV = nil;
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9 local function oauthbearer(self, message)
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10 if not message then
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11 return "failure", "malformed-request";
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12 end
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14 local authorization, password = s_match(message, "^n,a=([^,]*),\1auth=Bearer ([^\1]+)");
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15 if not authorization then
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16 return "failure", "malformed-request";
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17 end
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19 local authentication = s_match(authorization, "(.-)@.*");
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20
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21 -- SASLprep password and authentication
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22 authentication = saslprep(authentication);
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23 password = saslprep(password);
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25 if (not password) or (password == "") or (not authentication) or (authentication == "") then
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26 log("debug", "Username or password violates SASLprep.");
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27 return "failure", "malformed-request", "Invalid username or password.";
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28 end
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30 local _nodeprep = self.profile.nodeprep;
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31 if _nodeprep ~= false then
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32 authentication = (_nodeprep or nodeprep)(authentication);
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33 if not authentication or authentication == "" then
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34 return "failure", "malformed-request", "Invalid username or password."
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35 end
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36 end
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38 local correct, state = false, false;
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39 correct, state = self.profile.oauthbearer(self, authentication, password, self.realm);
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41 self.username = authentication
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42 if state == false then
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43 return "failure", "account-disabled";
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44 elseif state == nil or not correct then
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45 return "failure", "not-authorized", "Unable to authorize you with the authentication credentials you've sent.";
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46 end
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47 return "success";
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48 end
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50 registerMechanism("OAUTHBEARER", {"oauthbearer"}, oauthbearer);