prosody
ebe3b2f96cad
util/sasl/oauthbearer.lua

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util/sasl/oauthbearer.lua @ 12953:ebe3b2f96cad

mod_tokenauth: Switch to new token format (invalidates existing tokens!) The new format has the following properties: - 5 bytes longer than the previous format - The token now has separate 'id' and 'secret' parts - the token itself is no longer stored in the DB, and the secret part is hashed - The only variable length field (JID) has been moved to the end - The 'secret-token:' prefix (RFC 8959) is now included Compatibility with the old token format was not maintained, and all previously issued tokens are invalid after this commit (they will be removed from the DB if used).
author Matthew Wild <mwild1@gmail.com>
date Tue, 21 Mar 2023 14:33:29 +0000
parent 12951:4cc0785f960e
child 12975:d10957394a3c
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ab1164eda011 util.sasl: Add SASL OAUTHBEARER mechanism (RFC 7628)
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1 local json = require "util.json";
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2 local _ENV = nil;
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3
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4
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5 local function oauthbearer(self, message)
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6 if not message then
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7 return "failure", "malformed-request";
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8 end
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9
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10 if message == "\001" then
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11 return "failure", "not-authorized";
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12 end
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14 local gs2_header, kvpairs = message:match("^(n,[^,]*,)(.+)$");
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15 if not gs2_header then
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16 return "failure", "malformed-request";
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17 end
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18 local gs2_authzid = gs2_header:match("^[^,]*,a=([^,]*),$");
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19
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20 local auth_header;
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21 for k, v in kvpairs:gmatch("([a-zA-Z]+)=([\033-\126 \009\r\n]*)\001") do
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22 if k == "auth" then
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23 auth_header = v;
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24 break;
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25 end
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26 end
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27
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28 if not auth_header then
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29 return "failure", "malformed-request";
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30 end
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32 local token = auth_header:match("^Bearer (.+)$");
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33
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34 local username, state, token_info = self.profile.oauthbearer(self, token, self.realm, gs2_authzid);
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35
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36 if state == false then
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37 return "failure", "account-disabled";
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38 elseif state == nil or not username then
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39 -- For token-level errors, RFC 7628 demands use of a JSON-encoded
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40 -- challenge response upon failure. We relay additional info from
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41 -- the auth backend if available.
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42 return "challenge", json.encode({
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43 status = token_info and token_info.status or "invalid_token";
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44 scope = token_info and token_info.scope or nil;
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45 ["openid-configuration"] = token_info and token_info.oidc_discovery_url or nil;
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46 });
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47 end
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48 self.username = username;
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49 self.token_info = token_info;
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50
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51 return "success";
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52 end
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53
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54 local function init(registerMechanism)
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55 registerMechanism("OAUTHBEARER", {"oauthbearer"}, oauthbearer);
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56 end
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57
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58 return {
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59 init = init;
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60 }