prosody-modules
e79f9dec35c0
mod_auth_imap/auth_imap/mod_auth_imap.lua

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mod_auth_imap/auth_imap/mod_auth_imap.lua @ 5810:e79f9dec35c0

mod_c2s_conn_throttle: Reduce log level from error->info Our general policy is that "error" should never be triggerable by remote entities, and that it is always about something that requires admin intervention. This satisfies neither condition. The "warn" level can be used for unexpected events/behaviour triggered by remote entities, and this could qualify. However I don't think failed auth attempts are unexpected enough. I selected "info" because it is what is also used for other notable session lifecycle events.
author Matthew Wild <mwild1@gmail.com>
date Thu, 07 Dec 2023 15:46:50 +0000
parent 1202:2cce28fe806b
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f45ca6edc159 mod_auth_imap: Authentication module that works by passing through SASL to a IMAP connection
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1 -- IMAP authentication backend for Prosody
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2 --
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3 -- Copyright (C) 2011 FIMXE from hg annotate -u
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4
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5 local name = "IMAP SASL";
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6 local log = require "util.logger".init("auth_imap");
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7
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8 local imap_host = module:get_option_string("imap_auth_host", "localhost");
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b21bd39c8a12 mod_auth_imap: Leave port nil if not specified in the config, so we can auto-detect based on whether we use SSL
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9 local imap_port = module:get_option_number("imap_auth_port");
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10
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2cce28fe806b mod_auth_imap: Fix typo in previous commit
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11 local imap_service_realm = module:get_option_string("imap_auth_realm", module:get_option("sasl_realm"));
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744af76b7324 mod_auth_imap: Rename imap_service_realm to imap_auth_realm and inherit from sasl_realm, rename imap_service_name to imap_auth_service_name
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12 local imap_service_name = module:get_option_string("imap_auth_service_name");
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34216cdffda6 mod_auth_imap: unfortunately large commit which adds support for SSL (including cert verification), appending the realm to usernames, and various IMAP protocol fixes
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13 local append_host = module:get_option_boolean("auth_append_host");
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14
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15 local verify_certificate = module:get_option_boolean("auth_imap_verify_certificate", true);
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16 local ssl_params = module:get_option("auth_imap_ssl", {
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17 mode = "client", protocol = "sslv23";
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18 capath = "/etc/ssl/certs";
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19 options = { "no_sslv2", "no_sslv3" };
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20 verify = verify_certificate and { "peer", "fail_if_no_peer_cert" } or nil;
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21 ciphers = "HIGH:!DSS:!aNULL@STRENGTH";
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22 });
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24 local new_imap_sasl = module:require "sasl_imap".new;
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25
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26 local new_sasl = function(realm)
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27 return new_imap_sasl(
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28 imap_service_realm or realm,
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29 imap_service_name or "xmpp",
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30 imap_host, imap_port,
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31 ssl_params, append_host
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32 );
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33 end
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34
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35 do
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36 local s = new_sasl(module.host)
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37 assert(s, "Could not create a new SASL object");
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38 assert(s.mechanisms, "SASL object has no mechanims method");
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39 local m = {};
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40 for k in pairs(s:mechanisms()) do
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41 table.insert(m, k);
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42 end
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43 log("debug", "Mechanims found: %s", table.concat(m, ", "));
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44 end
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45
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46 provider = {
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47 name = module.name:gsub("^auth_","");
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48 };
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49
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50 function provider.test_password(username, password)
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51 return nil, "Legacy auth not supported with "..name;
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52 end
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53
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54 function provider.get_password(username)
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55 return nil, "Passwords unavailable for "..name;
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56 end
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57
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58 function provider.set_password(username, password)
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59 return nil, "Passwords unavailable for "..name;
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60 end
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61
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62 function provider.user_exists(username)
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63 -- FIXME
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64 return true
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65 end
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66
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67 function provider.create_user(username, password)
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68 return nil, "Account creation/modification not available with "..name;
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69 end
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70
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71 function provider.get_sasl_handler()
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72 return new_sasl(module.host);
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73 end
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74
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75 module:add_item("auth-provider", provider);
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76