verse
f7854dd16ed3
plugins/sasl.lua

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plugins/sasl.lua @ 346:f7854dd16ed3

plugins.pubsub: Implement node discovery
author Kim Alvefur <zash@zash.se>
date Sat, 06 Jul 2013 08:35:37 +0200
parent 315:3742107e2505
child 354:58cd27b74ba5
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f2b55ba66e14 plugins.sasl: Add plugin
Matthew Wild <mwild1@gmail.com>
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1 local base64 = require "mime".b64;
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2 local xmlns_sasl = "urn:ietf:params:xml:ns:xmpp-sasl";
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4 function verse.plugins.sasl(stream)
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5 local function handle_features(features_stanza)
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6 if stream.authenticated then return; end
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7 stream:debug("Authenticating with SASL...");
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8 --stream.sasl_state, initial_data = sasl_new({"PLAIN"}, stream.username, stream.password, stream.jid);
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3742107e2505 plugins/sasl: Use ANONYMOUS authentication when no username provided
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9 local mechanism , initial_data
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10 if stream.username then
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11 mechanism = "PLAIN"
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12 initial_data = base64("\0"..stream.username.."\0"..stream.password);
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13 else
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14 mechanism = "ANONYMOUS"
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15 end
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16 stream:debug("Selecting %s mechanism...",mechanism);
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17 local auth_stanza = verse.stanza("auth", { xmlns = xmlns_sasl, mechanism = mechanism });
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18 if initial_data then
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19 auth_stanza:text(initial_data);
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20 end
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21 stream:send(auth_stanza);
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22 return true;
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23 end
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24
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25 local function handle_sasl(sasl_stanza)
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26 if sasl_stanza.name == "success" then
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27 stream.authenticated = true;
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28 stream:event("authentication-success");
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29 elseif sasl_stanza.name == "failure" then
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30 local err = sasl_stanza.tags[1];
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31 local text = sasl_stanza:get_child_text("text");
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32 stream:event("authentication-failure", { condition = err.name, text = text });
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33 end
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34 stream:reopen();
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35 return true;
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36 end
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38 stream:hook("stream-features", handle_features, 300);
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39 stream:hook("stream/"..xmlns_sasl, handle_sasl);
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40
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41 return true;
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42 end
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