annotate mod_auth_cyrus/mod_auth_cyrus.lua @ 5882:563c2c70cb9f

mod_sasl2_fast: Improve handling when SASL profile unexpectedly lacks CB This fixes a traceback reported by riau, but likely does not solve the underlying cause, whatever that is.
author Matthew Wild <mwild1@gmail.com>
date Tue, 16 Apr 2024 10:42:25 +0100
parents b8366e31c829
children
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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 -- luacheck: ignore 212
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10 local log = require "util.logger".init("auth_cyrus");
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11
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12 local usermanager_user_exists = require "core.usermanager".user_exists;
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13
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14 local cyrus_service_realm = module:get_option("cyrus_service_realm");
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15 local cyrus_service_name = module:get_option("cyrus_service_name");
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16 local cyrus_application_name = module:get_option("cyrus_application_name");
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17 local require_provisioning = module:get_option("cyrus_require_provisioning") or false;
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18 local host_fqdn = module:get_option("cyrus_server_fqdn");
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20 prosody.unlock_globals(); --FIXME: Figure out why this is needed and
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21 -- why cyrussasl isn't caught by the sandbox
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22 local cyrus_new = module:require "sasl_cyrus".new;
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23 prosody.lock_globals();
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24 local new_sasl = function(realm)
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25 return cyrus_new(
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26 cyrus_service_realm or realm,
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27 cyrus_service_name or "xmpp",
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28 cyrus_application_name or "prosody",
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29 host_fqdn
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30 );
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31 end
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32
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33 do -- diagnostic
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34 local list;
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35 for mechanism in pairs(new_sasl(module.host):mechanisms()) do
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36 list = (not(list) and mechanism) or (list..", "..mechanism);
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37 end
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38 if not list then
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39 module:log("error", "No Cyrus SASL mechanisms available");
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40 else
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41 module:log("debug", "Available Cyrus SASL mechanisms: %s", list);
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42 end
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43 end
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44
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45 local host = module.host;
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46
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47 -- define auth provider
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48 local provider = {};
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49 log("debug", "initializing default authentication provider for host '%s'", host);
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50
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51 function provider.test_password(username, password)
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52 return nil, "Legacy auth not supported with Cyrus SASL.";
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53 end
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54
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55 function provider.get_password(username)
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56 return nil, "Passwords unavailable for Cyrus SASL.";
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57 end
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58
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59 function provider.set_password(username, password)
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60 return nil, "Passwords unavailable for Cyrus SASL.";
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61 end
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62
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63 function provider.user_exists(username)
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64 if require_provisioning then
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65 return usermanager_user_exists(username, host);
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66 end
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67 return true;
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68 end
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69
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70 function provider.create_user(username, password)
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71 return nil, "Account creation/modification not available with Cyrus SASL.";
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72 end
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73
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74 function provider.get_sasl_handler()
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75 local handler = new_sasl(host);
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76 if require_provisioning then
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77 function handler.require_provisioning(username)
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78 return usermanager_user_exists(username, host);
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79 end
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80 end
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81 return handler;
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82 end
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83
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84 module:provides("auth", provider);
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85