annotate misc/sasl/example.lua @ 3656:3e0f4d727825

mod_vcard_muc: Add an alternative method of signaling avatar change When the avatar has been changed, a signal is sent that the room configuration has changed. Clients then do a disco#info query to find the SHA-1 of the new avatar. They can then fetch it as before, or not if they have it cached already. This is meant to be less disruptive than signaling via presence, which caused problems for some clients. If clients transition to the new method, the old one can eventually be removed. The namespace is made up while waiting for standardization. Otherwise it is very close to what's described in https://xmpp.org/extensions/inbox/muc-avatars.html
author Kim Alvefur <zash@zash.se>
date Sun, 25 Aug 2019 20:46:43 +0200
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1 local method = {}
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2 local method_mt = { __index = method }
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3
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4 -- This should return a set of supported mechanisms
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5 function method:mechanisms()
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6 return {
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7 ["OAUTH-SOMETHING"] = true;
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8 }
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9 end
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10
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11 -- Called when a mechanism is selecetd
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12 function method:select(mechanism)
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13 return mechanism == "OAUTH-SOMETHING";
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14 end
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15
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16 -- Called for each message received
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17 function method:process(message)
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18 -- parse the message
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19 if false then
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20 -- To send a SASL challenge:
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21 return "challenge", "respond-to-this";
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22 end
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23
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24 if false then
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25 -- To fail, send:
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26 return "failure", "not-authorized", "Helpful error message here";
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27 end
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28
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29 self.username = "someone";
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30 return "success";
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31 end
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32
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33 local function new_sasl()
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34 return setmetatable({}, method_mt);
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35 end
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36
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37 function method:clean_clone()
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38 return setmetatable({}, method_mt);
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39 end
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40
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41 local provider = {}
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42
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43 function provider.get_sasl_handler()
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44 return new_sasl();
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45 end
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46
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47 module:provides("auth", provider);