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annotate mod_s2s_auth_monkeysphere/mod_s2s_auth_monkeysphere.lua @ 1626:aed20f9e78c8

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mod_s2s_auth_dane: Comments and cleanup
author Kim Alvefur <zash@zash.se>
date Mon, 16 Mar 2015 16:19:53 +0100
parents cfe360d9d82c
children a100f4a720cb
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cfe360d9d82c mod_s2s_auth_monkeysphere: Uses Monkeysphere for certificate validation
Kim Alvefur <zash@zash.se>
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1 module:set_global();
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2
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3 local http_request = require"socket.http".request;
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4 local ltn12 = require"ltn12";
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5 local json = require"util.json";
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6 local json_encode, json_decode = json.encode, json.decode;
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7 local gettime = require"socket".gettime;
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8 local serialize = require"util.serialization".serialize;
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9
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10 local msva_url = assert(os.getenv"MONKEYSPHERE_VALIDATION_AGENT_SOCKET",
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11 "MONKEYSPHERE_VALIDATION_AGENT_SOCKET is unset, please set it").."/reviewcert";
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12
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13 local function check_with_monkeysphere(event)
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14 local session, host, cert = event.session, event.host, event.cert;
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15 local result = {};
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16 local post_body = json_encode {
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17 peer = {
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18 name = host;
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19 type = "peer";
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20 };
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21 context = "https";
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22 -- context = "xmpp"; -- Monkeysphere needs to be extended to understand this
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23 pkc = {
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24 type = "x509pem";
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25 data = cert:pem();
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26 };
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27 }
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28 local req = {
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29 method = "POST";
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30 url = msva_url;
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31 headers = {
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32 ["Content-Type"] = "application/json";
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33 ["Content-Length"] = tostring(#post_body);
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34 };
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35 sink = ltn12.sink.table(result);
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36 source = ltn12.source.string(post_body);
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37 };
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38 session.log("debug", "Asking what Monkeysphere thinks about this certificate");
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39 local starttime = gettime();
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40 local ok, code = http_request(req);
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41 module:log("debug", "Request took %fs", gettime() - starttime);
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42 local body = table.concat(result);
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43 if ok and code == 200 and body then
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44 body = json_decode(body);
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45 if body then
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46 session.log(body.valid and "info" or "warn", "Monkeysphere thinks the cert is %salid: %s", body.valid and "V" or "Inv", body.message);
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47 if body.valid then
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48 session.cert_chain_status = "valid";
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49 session.cert_identity_status = "valid";
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50 return true;
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51 end
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52 end
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53 else
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54 module:log("warn", "Request failed: %s, %s", tostring(code), tostring(body));
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55 module:log("debug", serialize(req));
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56 end
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57 end
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58
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59 module:hook("s2s-check-certificate", check_with_monkeysphere);