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annotate mod_sasl_oauthbearer/mod_sasl_oauthbearer.lua @ 5025:fd154db7c8fc

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mod_sasl2: Fix handling of various failure/error cases
author Matthew Wild <mwild1@gmail.com>
date Mon, 29 Aug 2022 16:35:19 +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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29
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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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49
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50 registerMechanism("OAUTHBEARER", {"oauthbearer"}, oauthbearer);