prosody
72a2eec4204a
plugins/mod_auth_anonymous.lua

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plugins/mod_auth_anonymous.lua @ 4944:72a2eec4204a

mod_auth_anonymous: Attach a fake roster to the session, so the null storage backend can be used
author Kim Alvefur <zash@zash.se>
date Sat, 07 Jul 2012 03:42:31 +0200
parent 4846:3bc3498df0a0
child 4947:6d9317ea79b2
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local new_sasl = require "util.sasl".new;
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10 local datamanager = require "util.datamanager";
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11
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12 function new_default_provider(host)
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13 local provider = { name = "anonymous" };
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14
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15 function provider.test_password(username, password)
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16 return nil, "Password based auth not supported.";
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17 end
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19 function provider.get_password(username)
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20 return nil, "Password not available.";
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21 end
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22
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23 function provider.set_password(username, password)
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24 return nil, "Password based auth not supported.";
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25 end
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27 function provider.user_exists(username)
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28 return nil, "Only anonymous users are supported."; -- FIXME check if anonymous user is connected?
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29 end
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31 function provider.create_user(username, password)
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32 return nil, "Account creation/modification not supported.";
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33 end
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35 function provider.get_sasl_handler(session)
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36 local anonymous_authentication_profile = {
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37 anonymous = function(sasl, username, realm)
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38 session.roster = {}; -- so that the null storage backend doesn't upset rostermanager
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39 return true; -- for normal usage you should always return true here
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40 end
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41 };
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42 return new_sasl(module.host, anonymous_authentication_profile);
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43 end
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45 return provider;
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46 end
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48 local function dm_callback(username, host, datastore, data)
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49 if host == module.host then
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50 return false;
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51 end
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52 return username, host, datastore, data;
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53 end
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54
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55 if not module:get_option_boolean("allow_anonymous_s2s", false) then
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56 module:hook("route/remote", function (event)
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57 return false; -- Block outgoing s2s from anonymous users
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58 end, 300);
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59 end
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60
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61 function module.load()
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62 datamanager.add_callback(dm_callback);
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63 end
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64 function module.unload()
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65 datamanager.remove_callback(dm_callback);
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66 end
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67
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68 module:add_item("auth-provider", new_default_provider(module.host));
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69