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annotate mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua @ 4409:44f6537f6427

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mod_invites_adhoc: Fail contact invite if user is not on current host Only the username was being used, and the host of the requester ignored. Luckily this only affects admins of the host. If they want to create an account they can use the other command. If they want to create a contact they should request from their account on this host.
author Matthew Wild <mwild1@gmail.com>
date Thu, 28 Jan 2021 07:04:11 +0000
parents ee2cedb0f691
children
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1 -- Copyright (C) 2013-2014 Kim Alvefur
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2 -- This file is MIT/X11 licensed.
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4 module:set_global();
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6 local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1");
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8 local fingerprints = {};
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10 local function hashprep(h)
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11 return tostring(h):gsub(":",""):lower();
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12 end
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14 local function hashfmt(h)
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15 return h:gsub("..","%0:", #h/2-1):upper();
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16 end
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18 for host, set in pairs(module:get_option("s2s_trusted_fingerprints", {})) do
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19 local host_set = {}
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20 if type(set) == "table" then -- list of fingerprints
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21 for i=1,#set do
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22 host_set[hashprep(set[i])] = true;
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23 end
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24 else -- assume single fingerprint
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25 host_set[hashprep(set)] = true;
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26 end
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27 fingerprints[host] = host_set;
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28 end
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30 module:hook("s2s-check-certificate", function(event)
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31 local session, host, cert = event.session, event.host, event.cert;
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33 local host_fingerprints = fingerprints[host];
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34 if host_fingerprints then
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35 local digest = cert and cert:digest(digest_algo);
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36 if host_fingerprints[digest] then
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37 module:log("info", "'%s' matched %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest));
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38 session.cert_chain_status = "valid";
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39 session.cert_identity_status = "valid";
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40 return true;
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41 else
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42 module:log("warn", "'%s' has unknown %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest));
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43 session.cert_chain_status = "invalid";
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44 session.cert_identity_status = "invalid";
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45 end
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46 end
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47 end);